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WO2018124989A1 - Liquid laundry detergent - Google Patents

Liquid laundry detergent Download PDF

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Publication number
WO2018124989A1
WO2018124989A1 PCT/TR2016/050565 TR2016050565W WO2018124989A1 WO 2018124989 A1 WO2018124989 A1 WO 2018124989A1 TR 2016050565 W TR2016050565 W TR 2016050565W WO 2018124989 A1 WO2018124989 A1 WO 2018124989A1
Authority
WO
WIPO (PCT)
Prior art keywords
laundry detergent
liquid laundry
detergent composition
composition
transparent liquid
Prior art date
Application number
PCT/TR2016/050565
Other languages
French (fr)
Inventor
Ahmet Ergun
Turgut Tas
Okan Yuzuak
Original Assignee
Hayat Kimya San. A. Ş.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hayat Kimya San. A. Ş. filed Critical Hayat Kimya San. A. Ş.
Priority to PCT/TR2016/050565 priority Critical patent/WO2018124989A1/en
Publication of WO2018124989A1 publication Critical patent/WO2018124989A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0026—Low foaming or foam regulating compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • C11D3/38645—Preparations containing enzymes, e.g. protease or amylase containing cellulase
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/004—Surface-active compounds containing F
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/143—Sulfonic acid esters

Definitions

  • the field of the present invention relates to liquid laundry detergents.
  • the field of the present invention relates to transparent liquid laundry detergents.
  • the field of the present invention relates to transparent liquid laundry detergents having anti-graying effect. Particularly this application relates to the specific compositions in order to fulfill all the said requirements and the needs in this particular field.
  • Solid or powdered detergents are generally used for the cleaning of textiles till now. Although these detergents provide good stain removal performance due to the presence of bleaching agents, these compositions lead to fabric deterioration and fades of color after repeated laundering. Because of that manufacturers starts to seek for new detergent formulations in liquid form in order to prevent graying, color fading and deterioration of fabrics while providing good cleaning performance.
  • the liquid detergents generally do not contain bleaching agents which means that they do not harm the textiles, fade the color of them.
  • liquid formulations may suffer from reduced cleaning performance and graying of textiles. The graying of fabrics during washings is occurred as a result of redeposition of removed dirt onto textiles. Washing or cleaning formulations generally contain additive(s) to improve their washing or cleaning performance.
  • Further object of the present invention is to provide a transparent liquid laundry detergent composition having anti-graying effect.
  • carboxymethyl cellulose derivatives as graying inhibitors are known from US7842658B2, EP1989282B1 .
  • the liquid laundry detergents studied in these patents are transparent however; these applications require the use of carboxymethyl cellulose derivatives specific in structure or in size since the use of carboxymethyl cellulose derivatives in liquid detergent formulations especially in transparent formulations have strong limitations due to their low solubility in surfactant systems and strong thickening effect in aqueous systems. When they are incorporated into liquid formulations, the products may become no longer flowable or pourable during the storage which makes the handling, using and dosing of the detergent difficult. Besides, the presence of incompletely dissolved carboxymethyl cellulose particles in products results also in poor aesthetics.
  • the present invention overcomes above mentioned problems by formulating a liquid laundry detergent having anti-graying effect which also provides good cleaning performance through the synergistic effect of ingredients of the detergent composition.
  • the present invention cleaning composition allows the consumer to maintain using the product to its full extent by facilitating a safer, environmentally friendly, effective, and inexpensive cleaning.
  • the present invention liquid cleaning composition is transparent in nature which is a sign of phase stability and appealing to the customer.
  • liquid cleaning composition involving enzymes, anti-redeposition agent as specified hereinbelow, represent good anti-graying effect.
  • said liquid cleaning composition comprises anionic surfactants, fatty acid soap, Si-free foam suppressor as specified hereinbelow which exhibits high transparency thorough the synergistic effects of the ingredients.
  • the transparent liquid cleaning composition does not contain any bleaching agents so that the composition doesn't deteriorate either the fabric or the colors of the textiles.
  • the pH of the composition is neutral which assist the protection of fabrics and the color of the textiles.
  • the compositions having highly alkaline pH destroy either the fabric, or the colors of the textiles and also leads to pilling that make the fabrics look older and detrited.
  • the liquid laundry detergent composition having anti-graying effect comprises; a. Anionic surfactant mixture from 1 .0 wt.-% to 35.0 wt.-%
  • a liquid fatty acid soap from 0.10 wt.-% to 5.0 wt.-%
  • Enzyme mixture comprising cellulase from 0.20wt.-%to 1 .50wt.-%
  • Anti-redeposition agent from 0.05 wt.-% to 2.0wt.-%
  • said anionic surfactant mixture comprising alfa olefin sulfonate from 0.3 wt.-% to 5.0 wt.-% and said foam suppressor is Si-free,
  • liquid laundry detergent composition is transparent
  • the present invention composition also provides good cleaning and stain removal performance.
  • the present invention overcomes above mentioned problems and achieves above mentioned objects by formulating a transparent liquid laundry detergent composition providing good anti-graying effect without compromising the cleaning and stain removal performance of the cleaning composition.
  • the present invention cleaning composition allows the consumer to use the product to its full extent to achieve good anti-graying effect, good transparency, good cleaning and stain removal performance by facilitating a safer, environmentally friendly, effective, and inexpensive cleaning.
  • the present invention relates to liquid laundry detergent composition which is superior to commercially available products on the market with regard to its good anti-graying effect and transparency.
  • the present invention relates to liquid laundry detergent composition which is superior to commercially available products on the market with regard to its fabric and color care features.
  • the present invention relates to particulate cleaning product which is superior to commercially available products on the market with regard to having the synergistic effect by utilization of anionic surfactants, fatty acid soap, enzyme mixture, polyethyleneimine, Si-free foam suppressor, optical brightener and builder for the prevention of fabric-graying and color fading without compromising the cleaning and stain removal performance.
  • liquid is used to refer to pourable type laundry cleaning compositions.
  • laundry detergent composition as mentioned above is used for clear and/or transparent and/or translucent cleaning compositions. The terms are used interchangeably.
  • Liquid cleaning composition and/or liquid cleaning product and/or liquid detergent composition cover the cleaning products for laundry.
  • Laundry detergent composition as mentioned above is used for automatic and/or machine laundering operations. Additionally, the terms cleaning product and/or cleaning composition and/or detergent composition are used interchangeably.
  • fabric(s), textile(s), article(s) and garment(s) are used interchangeably within the text.
  • Liquid detergent composition of the present invention is preferably for liquid laundry cleaning compositions and more preferably, translucent liquid laundry cleaning compositions.
  • composition is pourable.
  • the pourable liquid composition is meant that the composition is measured by using a cap or cover of the detergent bottle or by using any article for measuring required amount of detergent. Then, the measured detergent is poured to the dispensing drawer of the washing machine.
  • Surfactant lowers surface tension of water; act as wetness agent which makes the soil removing possible.
  • Suitable surfactants for such use may be of anionic, cationic, nonionic and amphotheric in nature.
  • Surfactants are used in the present invention in the range of %1 to %50 varying with respect of concentration or purpose of the compositions.
  • the detergent compositions of the present invention comprise anionic and nonionic surfactants.
  • the anionic surfactants used in the present invention composition comprises sulfate surfactants, linear alkylbenzene sulfonic acid , sodium lauryl ether sulfate, alpha olefin sulfonate, phosphate esters, sulfosuccinate surfactants, sodium dioctyl sulphosuccinate, sulfonate surfactants , alkyl benzene sulfonate, allylsulfate, sodium alkyl glyceryl ether sulfonate, alpha olefin sulfonate, linear alkyl benzene sulfonate, alcohol ether sulfate, dodecyl benzene sulfate, alkyl ethoxy sulfonate, alkylethoxy phosphate, and mixtures thereof .
  • the transparent laundry detergent composition of the present invention comprises mixture of anionic surfactants.
  • the application of anionic surfactant mixture supports the transparency of the detergent composition of the present invention and also, improves the cleaning performance.
  • the preferred anionic surfactant is linear alkyl benzene sulfonic acid sodium salt (LABSA.Na).
  • LABSA.Na is manufactured by the sulphonation of linear alkyl benzene (LAB), which produces linear alkyl benzene sulfonic acid (LABSA), and then neutralized with sodium hydroxide to yield LABSA.Na.
  • the LAB used in LABSA.Na manufacturing may be HF and/or Detal type.
  • the LAB used in LABSA.Na manufacturing comprises max. 1 % C9 phenyl, 8-18% C10 phenyl, 26-38% Cn phenyl, 26-38% Ci 2 phenyl, 15-27% C13 phenyl, max.
  • LABSA.Na 1 % Ci 4 phenyl by total weight of LAB.
  • 2-phenyl isomer content of the LAB may be 15-22% by weight for HF type, and 25-35% by weight for Detal type.
  • the resulting LABSA.Na has a solid matter of at least 96% by weight, and demonstrates the similar carbon distribution of raw material LAB.
  • the use of LABSA-Na less than 1 .0 wt.-% does not exhibit efficient cleaning performance.
  • the use of LABSA.Na higher than 15.0wt.-% does not show any noticeable change in the cleaning performance.
  • Transparent liquid laundry detergent of the present invention comprises alkyl ether sulfates (AES).
  • Alkyl ether sulfates are also called as alcohol ethoxyl sulfates (AEOS), resulting from the sulfation of an ethoxylated alcohol.
  • Alcohol ethoxyl sulfates included in the present invention composition is C-io-C-is alkyl alkoxy sulfates and also known as alkyl polyethoxylate sulfates which can be represented by the general formula
  • R' can be a C 8 -C 2 o alkyl group, n is from about 1 to 20 whereby "n" representing the number of ethoxy group existing in the each chain. In one embodiment of the present invention, R' is a Ci 2 -Ci 6 , n is from about 1 to 6.
  • the preferred alkyl ether sulfate surfactant of the present invention composition is sodium lauryl ether sulfate having Ci 2 -C carbon chain distribution. More preferably sodium lauryl ether sulfate having 1 to 6 ethoxy groups, most preferably having 2 ethoxy groups.
  • AES alkyl ether sulfate
  • the use of low levels of alkyl ether sulfate (AES) surfactant in a surfactant system substantially reduces the tendency of the anionic surfactant to precipitation under high wash-water hardness.
  • SLES less than 1 .0wt.-% does not exhibit efficient cleaning performance whereas SLES higher than 15.0wt.-% does not show any noticeable change in the cleaning performance.
  • transparent liquid cleaning composition of the present invention comprises SLES from 1 .Owt.-% to 15.0 wt.-%, preferably from 2.0wt.-% to 12.0wt.-% of the total composition.
  • Transparent liquid laundry detergent of the present invention comprises alpha olefin sulphonate, also.
  • Alpha olefin sulfonate (AOS)
  • AOS Alpha olefin sulfonate
  • LAS linear alkyl sulfonate
  • the use of AOS in combination with linear alkyl sulfonate (LAS) reduces the surface tension and critical micelle concentration to a minimum. Thereby the mixed micelles improve hard-water tolerance of LAS and reduce precipitation of LAS by calcium which leads to superior detergency, low ash deposit and better stain-removing ability when compared with products containing LAS as the sole active surfactant.
  • alpha olefin sulfonates including long-chain alkene sulfonates, long-chain hydroxyalkane sulfonates or mixtures of alkene sulfonates and hydroxyalkane sulfonates can be prepared by the reaction of sulfur trioxide (SO3) with long-chain olefins having 8 to 25, preferably 12 to 21 carbon atoms and having the formula
  • R is a higher alkyl group of 6 to 23 carbons and R1 is an alkyl group of 1 to 17 carbons or hydrogen.
  • alkene sulfonic acids occur as preliminary products and various sultones are formed which are then treated to convert the sultones to sulfonates.
  • the preferred alpha olefin sulfonate surfactant of the present invention composition is sodium salt of alpha olefin sulfonate having C -Ci 6 carbon chain distribution.
  • the use of alpha olefin sulfonate according to present invention improves hard-water tolerance of LAS and reduces precipitation of LAS by calcium, which leads to improved transparency of liquid laundry detergent of the present invention.
  • the use of alpha olefin sulfonate in amounts less than 0.3 wt.-% decreases the solubility of the other ingredients present in the composition. As a result, the transparency of the composition is destroyed since the cloudy point of it is increased. As a result, the composition becomes blurred.
  • transparent liquid cleaning composition of the present invention comprises alpha olefin sulfonate from 1 .2wt.-% to 5.0wt.,%, preferably from 1 .4 wt.-% to 4.0wt.-% of the total composition.
  • Transparent liquid laundry detergent of the present invention comprises fatty acid soap, also.
  • Anionic surfactants also include fatty acid soaps-i.e., fully neutralized fatty acids. The fatty acids are added in non-neutralized form at the beginning of the process and then, they are converted into neutralized form by using NaOH solution.
  • Transparent liquid laundry detergent of the present invention comprises any fatty acids comprising but not limited to lauric, myristic, palmitic, stearic, oleic, linoleic acid and mixtures thereof.
  • the fatty acid soap of the present invention composition is selected from fatty acids which do not form crispy solid at room temperature.
  • the preferred fatty acid soap of the present invention is oleic acid which is liquid at room temperature.
  • the preferred oleic acid of the present invention having carbon chain length is from CQ to C-is to help to induce transparency.
  • preferred fatty acid soap is an oleic acid having carbon distribution of maximum 1 1 % C 6 -Ci 8 and wherein minimum 75% of oleic acid is monounsaturated and maximum 15% is di unsaturated.
  • the fatty acid soap less than 0.1 % cannot provide softness to the fabric.
  • the use of fatty acid higher than 5.0 % leads to phase separation and destruction of transparency of the composition.
  • the compositions having phase separation and turbidity affects consumers' perception negatively.
  • the transparent liquid laundry detergent of the present invention comprises fatty acid soap from 0.1 wt.-% to 5.0 wt.-%, preferably from 0.2 wt.-% to 4.0 wt.-% of the total composition.
  • the present invention composition comprises nonionic surfactant.
  • the nonionic surfactants of the present invention can be selected from the groups of ethoxylated alcohols, ethoxylated alkyl phenols, fatty acid esters, alkylpolyglucosides, polyalcohols and ethoxylated polyalcohols.
  • the preferred non-ionic surfactant group is ethoxylated alcohols which can be chosen from the group of Ci 2 -Ci 8 fatty alcohol ethoxylates with 5-9 EO, Ci 2 -Ci 4 fatty alcohol ethoxylates 6-10 EO, Ci 6 -Ci 8 fatty alcohol ethoxylates with 10-80 EO, C13-C15 oxo alcohol ethoxylates with 3-1 1 EO, C10-C18 alcohol ethoxylates with 5-7 EO, C13 oxo alcohol ethoxylates with 2-20 EO, C10 guerbet alcohol ethoxylates with 3-14 EO, C10 oxo alcohol ethoxylates with 3-1 1 EO.
  • the preferred nonionic surfactant of the present invention is C13-C15 oxo alcohol ethoxylates with 3-1 1 EO, more preferably the nonionic surfactant of the present invention is oxo alcohol ethoxylate wherein ethoxyl group number is 5 to 7 and most preferably the nonionic surfactant of the present invention is oxo alcohol ethoxylate wherein ethoxyl group number is 7.
  • transparent liquid laundry detergent of the present invention comprises nonionic surfactant from 1 .0wt.-% to 10.0 wt.-%, preferably from 2.0wt.-% to 8.0wt.-% of the total composition.
  • anti-redeposition agent or anti- graying agents which are water-soluble copolymers of acrylic or methacrylic acid with acrylic or methacrylic acid-ethylene oxide condensates see (U.S. Pat. No. 3,719,647), cellulose and carboxymethylcellulose derivatives (U.S. Pat. No. 3,597,416), Ethoxylated Polyethyleneimines (PEI) (CA 121 0009).
  • Transparent liquid laundry detergent of the present invention comprises ethoxylated polyethyleneimine as anti-graying polymers.
  • transparent liquid laundry detergent of the present invention comprises ethoxylated PEI from 0.05 wt.-% to 2.0 wt.-%, preferably from 0.10 wt.-% to 1 .50 wt.-% of the total composition.
  • the enzymes used in the present invention composition comprise proteases, pectinases, lipases, mannanase, amylases, cellulases and mixtures of the aforesaid enzymes. All these hydrolases contribute to the removal of stains such as protein-, grease-, or starch-containing stains, and graying during laundering. Cellulases represent anti-pilling and anti-redeposition features while laundering that enables the anti-graying, color protection of the textiles and provides whiteness permanence. Additionally, cellulose contributes to the textile softening as a result of removing pilling.
  • Transparent liquid laundry detergent of the present invention comprises mixture of enzymes like proteases, pectinases, lipases, mannanase, amylases, cellulases in order to provide good stain removal and cleaning performance without sacrificing the anti-graying, color protection and softening of the fabrics.
  • the use of enzyme mixture less than 0.10wt.-% does not show good anti-graying and color protection effect and also, cleaning performance of the composition based on enzyme sensitive stains are reduced.
  • the use of enzyme mixture higher than 1 .50% affects the fabric adversely by thinning of the fabrics.
  • transparent liquid laundry detergent of the present invention comprises enzyme mixture comprising cellulase from 0.20 wt.-% to 1 .50 wt.-%, preferably from 0.30 wt.-% to 1 .40 wt.-% of the total composition.
  • enzyme mixture comprising cellulase from 0.20 wt.-% to 1 .50 wt.-%, preferably from 0.30 wt.-% to 1 .40 wt.-% of the total composition.
  • Foam is a normal side effect of machine washing while using detergents. However, generated foam during product usage sometimes perceived as the failure of the product as in the case of products in which the rinsing step is not desired. Also, foam has to disappear to provide a signal of good rinse ability.
  • Foam is crucial to the quality of a laundry wash. In moderation, it protects the laundry. But too much of it can impair the product performance by interfering with the mechanical agitation or contact of the surfactant solution with the soiled wash load. Additionally, too much foam also affects the machine's performance and the washing process itself and, what is more, increases water consumption. Reducing or impairing formation of foam amount can be achieved by using low foaming surfactants which is not compatible with the expected functional performance or using antifoam agents which are able to reduce foam during the product usage.
  • Antifoam additives are usually surface active compounds weakly soluble in the foaming surfactant solution. They can be derived from various natural fats and oils, petroleum derivatives or silicone oils. Antifoams can be roughly classified into two groups as surface-active materials and hydrophobic antifoams wherein antifoams based on surface active materials lead to foam breakage by acting at the air-liquid interface in the foam. They replace the surfactants to be able to form stable foam film and build a different type of filmless efficient in foaming.
  • nonionic surfactants as foam suppressing agents in aqueous cleaning solutions has already been known for a long time. It has been found that the use of fatty alcohol alkoxylates as antifoaming agents has foam suppressor ability. Additionally, it has been found that the use of fatty alcohol alkoxylates contributes to the production of liquid laundry detergents with high transparency.
  • fatty alcohol alkoxylate antifoaming agents decreases the disadvantages of soaps wherein the disadvantages of soaps are that their calcium forms depose on the fabric, leading to organic encrustation and consequently, graying/yellowing of the fabrics.
  • Transparent liquid laundry detergent of the present invention comprises fatty alcohol alkoxylate based antifoaming agents wherein preferred fatty alcohol alkoxylate is propoxylated alcohol having about 9 to 1 1 carbon atoms.
  • the use of antifoaming agent less than 0.2% causes the formation extra foam during laundering that adversely affects the performance of enzymes and surfactants.
  • the use of antifoaming agent higher than 1 .0 % prevents the foam generation. The absence of foam during laundering affects the consumers' perception adversely about the cleaning performance of the composition.
  • transparent liquid laundry detergent of the present invention comprises antifoaming agent from 0.20 wt.-% to 1 .0 wt.-%, preferably from 0.30wt.-% to 0.90 wt.-% of the total composition.
  • Si-based foam suppressors are affecting transparency negatively compared to surfactant based foam suppressors. Therefore, they are not used in the present invention composition.
  • Builders have multiple anionic functional groups which are capable to bind by complexation earth alkaline metal cations.
  • First commercially used builders were polyphosphates which are still in use. They were able to capture multivalent metal cations and remove it from the medium by precipitating, since phosphate salts of these metal cations are less soluble in water.
  • Builders are incorporated into cleaning compositions in order to soften the water, boost the detergency effect, inhibit the redeposition and achieve a suspension of the soil during washing process. Additionally, they are expected to contribute the notable cleaning performance by providing alkalinity necessary for washing process, by improving the adsorption capacity and thus in turn effectiveness of surfactants.
  • Builders are added to the detergent composition primarily to complex with Ca 2+ and Mg 2+ and thereby reduce hardness of water. If these metal ions are captured, they are precipitated on fabrics that lead to graying of the fabrics.
  • phosphonate builders are incorporated in detergent compositions in order to emulsify soil particles, reduce soil re-deposition by suspending the soil in the wash liquor and provide alkalinity which assists in dissolving oil-based soils. Otherwise, the use of an ineffective builder or the use of an ineffective amount of a builder reduces the cleaning performance of surfactants.
  • the detergent compositions of the present invention comprise phosphonates below 5%, preferably below 3% by weight of the total composition.
  • Phosphonates can be selected from amino tris(methylene phosphonic acid) - ATMP, (1 -hydroxyethylidene) diphosphonic acid - HEDP, diethylenetriamine penta(methylene phosphonic acid) - DTPMP or their respective salts.
  • the preferred type of phosphonate in the present detergent compositions is DTPMP sodium salt (DTPMP. Na).
  • Particulate cleaning composition of the present invention comprises builder from 0.20 wt.-% to 5.0wt.-%, preferably from 0.50 wt.-% to 3.0 wt.-% of the total composition.
  • Transparent liquid laundry detergent composition of present invention comprises optical brighteners from 0.05 wt.-% to 0.50 wt.-%, preferably from 0.06 wt.-% to 0.40 wt.-% of the total composition.
  • Optical brighteners can be selected from carbocycles, such as distyrylbenzenes, distyrylbiphenyls, and divinylstilbenes; triazinylaminostilbenes; stilbenyl-2H-triazoles, such as stilbenyl-2Hnaphthol[1 ,2- d]triazoles and bis(1 ,2,3-triazol-2-yl)stilbenes; benzoxazoles, such as stilbenyl benzoxazoles and bis(benzoxazoles); furans, benzofurans and benzimidazoles, such as bis(benzo[b]furan-2-yl)biphenyls and cationic benzimidizoles; 1 ,3
  • Perfume oils and/or encapsulated perfumes can be added to detergent compositions preferably in the amount of >0 wt.-% to 2 wt.-%.
  • Enzyme Stabilizer Enzyme stabilizers are used to improve the stability of enzymes in liqud cleaning compositions.
  • the enzyme stabilizers can be added to detergent compositions in the amount of >0.10 wt.-% to 1 .50 wt.-%.
  • the present invention liquid laundry detergent comprises boraxdecahydrate and propylene glycol as enzyme stabilizers.
  • Preservatives can be optionally used in the present invention compositions at a concentration of 0 % to 3 % weight percentage comprise benzalkonium chloride, benzethonium chloride, sodium benzoate, 5-bromo-5-nitro- 1 ,3 dioxane, 2-bromo-2- nitropropane-1 , 3-diol, alkyl trimethyl ammonium bromide; N- (hydroxymethyl)-N- (1 , 3- dihydroxy methyl-2, 5-dioxo-4-imidaxolidinyl-N'- (hydroxy methyl) urea; 1 -3-dimethyol- 5, 5-dimethyl hydantoin; formaldehyde; iodopropynl butyl carbamate, butyl paraben; ethyl paraben; methyl paraben; propyl paraben, mixture of methyl isothiazolinone/methyl-chloroisothiazoline; mixture of
  • Example 1 Preparation of a transparent liquid cleaning composition of the present invention
  • Example 2 1 /3 of total amount of distilled water was transferred to reaction mixer and heated to 75°C. Then, 0.50 g of borax decahydrate was added and stirred for 5 min. 2.00 g of oleic acid liquidified at 50-55°C was added to reaction mixture under continuous stirring at 75°C.
  • Example 3 1 /3 of total amount of distilled water was transferred to reaction mixer and heated to 75°C. Then, 1 .00 g of borax decahydrate was added and stirred for 5 min. 2.00 g of Oleic acid liquidified at 50-55°C was added to reaction mixture under continuous stirring at 75°C hereafter oleic acid was neutralized with 1 .30 g of NaOH solution (49%).
  • Table 1 Composition of the Examples 1 -3.
  • Tests were carried out in automated (Miele Edition 1 1 ) washing machine by using washing programs for cottons. Washing is continued with rinsing and squeezing stages. The detergent amount used in the washing programme was 65.0 imL. The main wash cycle was performed at 40°C. The washed items were then hanged and dried at room temperature. Following the drying, the washed items were ironed and evaluated. The evaluations are reported as an average of two fabrics. Washings were performed five times and after the fifth washing, the fabrics were value analyzed. During washing, WFK 10991 Graying Swatches is also added.
  • Spectrophotometric Evaluation of Color Protection For spectrophotometric assessment of the performance of transparent liquid laundry detergent composition of the present invention, washing tests with AISE-03 Green Vat Dye 145cm width - on Cotton, AISE-05 Blue Vat Dye 145cm width - on Cotton, AISE-21 Black (6%) Reactive Dye 145cm width - on Cotton, AISE-22 Orange Reactive 145cm width - on Cotton, AISE-26 Violet Reactive Dye 145cm width - on Cotton, AISE-29 Reactive Mix: Orange 107/Red 198/Black 5 145cm width - on Cotton, carried out in the same test conditions. Tests were carried out in automated (Miele Edition 1 1 ) washing machine by using washing programme for cottons.
  • Washing is continued with rinsing and squeezing stages.
  • the detergent amount used in the washing programme was 65.0 imL
  • the main wash cycle was performed at 40°C.
  • the washed items were then hanged and dried at room temperature. Following the drying, the washed items were ironed and evaluated. The evaluations are reported as an average of four fabrics. Washings were performed twenty times and after the twentieth washing, the fabrics were value analyzed.
  • BV CPS TURKEY Bureau Veritas Consumer Products Services Turkey
  • the detergent amount used in the washing programme was 65.0 imL
  • the fabric load is 3.0 kg for each washing.
  • the main wash cycle was performed at 40°C.
  • the washed items were then hanged and dried at room temperature. The evaluations are reported as an average of calculation after twenty washings.
  • compositions For visual evaluation of transparency of the present invention compositions, the liquid compositions are visually examined for the presence of sediments and suspended matter under the light. Samples which are clear having full transmittance of light and showing no sediments are called as transparent. Samples showing sediments or do not allow transmittance of light due to the presence of suspended matter are called non-transparent.
  • Anti-Grayinq Performance Comparative Washing Results of Example 1-3 Compositions for Anti-Graying Performance
  • Anti-graying performances of example 1-3 compositions are determined spectrophotometrically by using WFK 10991 Graying Swatches as soil. Different types of fabric in the presence of WFK 10991 Graying Swatches were washed. The evaluations are reported as an average of two fabrics. Washings were performed five times and after the fifth washing, the fabrics were value analyzed. The test results are demonstrated in table 2.
  • Example 3 Spectrophotometric Evaluation Results of Example 1-3 Compositions for Anti-Graying Performance Reference Example 1
  • Example 2 Example 3
  • Example 1 composition represents better anti-graying effect than example 2 compositions which can be attributed that example 1 composition contains higher amount of anti-redeposition agent and enzyme mixture.
  • Example 2 composition has lower anti-graying effect due to the presence of low amount of anti-redeposition agent and enzyme mixture especially cellulose. Additionally, the presence of Si-based foam suppressor renders the example 2 composition non-transparent. The use of higher amount of anti-redeposition agent prevents redeposition of soil onto the surface of the fabric better so that this reduces the dulling or graying of the fabrics.
  • example 3 composition the results of example 1 and 3 compositions are quite close to each other with regard to ant-graying effect since the amount of anti-redeposition agent and enzyme mixture are same.
  • example 3 composition is not transparent which is taught to be due to the low amount of alpha olefin sulfonate.
  • Color Protection Performance Comparative Washing Results of Example 1-3 Compositions for Color Protection Performance
  • Color protection performances of example 1-3 compositions are determined spectrophotometrically. The evaluations are reported as an average of four fabrics. Different types of fabrics having different colors were washed twenty times and after the twentieth washing, the fabrics were value analyzed. The test results are demonstrated in table 3.
  • Example 3 Spectrophotometric Evaluation Results of Example 1-3 Compositions for Color Protection Performance Example 1
  • Example 2 Example 3
  • Example 1 composition provides better color protection effect even after 20 th wash than example 2 composition.
  • This effect of example 1 composition can be attributed to its composition having higher amount of anti-redeposition agent and enzyme mixture.
  • Example 2 composition has lower anti-graying effect due to the presence of low amount of anti-redeposition agent and enzyme mixture especially cellulose.
  • the use of higher amount of anti- redeposition agent prevents redeposition of soil onto the surface of the fabric better so that this reduces the dulling or graying of the fabrics. Therefore, the colors of the fabrics can be protected better and fabrics keep their color even after multiple washings.
  • example 1 and 2 compositions represent close results but example 2 composition is not transparent which is taught to be due to the presence of Si-based foam supressor.
  • example 3 The color protection ability of example 3 is as good as example 1 composition because both compositions contain similar amount of anti-redeposition agent and enzyme mixture. On the other hand, the example 3 composition is not transparent which is taught to be due to the low amount of alpha olefin sulfonate.
  • Whiteness performance of example 1 is determined spectrophotometrically. The evaluations are reported as an average of four fabrics which were washed twenty times and after the twentieth washing, the fabrics were analyzed. The test results are demonstrated in table 4. Table 4: Spectrophotometric Evaluation Results of Example 1 Composition for Whiteness Performance
  • Spectrophotometric evaluation results shown in table 4 clearly demonstrate that fabrics rinsed with use of example 1 composition containing optical brightener becomes brighter than that of unwashed fabrics even after twenty washings.

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Abstract

The present invention provides a transparent liquid laundry detergent composition having anti-graying effect through the synergistic effect of ingredients of the detergent composition. The detergent composition comprises a specific surfactant mixture and specific fatty acid foam suppressor and anti-redeposition agent to achieve a transparent liquid composition having anti-graying capability after repeated washings.

Description

LIQUID LAUNDRY DETERGENT
FIELD OF THE INVENTION
The field of the present invention relates to liquid laundry detergents. The field of the present invention relates to transparent liquid laundry detergents.
The field of the present invention relates to transparent liquid laundry detergents having anti-graying effect. Particularly this application relates to the specific compositions in order to fulfill all the said requirements and the needs in this particular field.
BACKGROUND OF THE INVENTION
In the light of developments in technology, fabrics are started to be cleaned by washing machines throughout the world with cleaning compositions involving detergents. Consumers continually seek for a detergent which offers improved cleaning of fabrics while maintaining their initial color even they are repeatedly washed or cleaned. When it comes to the cleaning of white fabrics, consumers become picky since white color is associated with the cleanliness. Because of that they wish to have white fabrics as whiter as possible and as new as the day they bought. However, during wearing and laundering of white fabrics, discoloration and graying may be observed. Additionally, repeated laundering of white fabrics may cause yellowing in color which makes fabrics look older, worn and dull and fabrics never have a truly clean appearance. In the case of colored fabrics, their colors fade after several washings. Because of that colored fabrics look older, worn and dull and never have the same look of the first day when they bought.
Solid or powdered detergents are generally used for the cleaning of textiles till now. Although these detergents provide good stain removal performance due to the presence of bleaching agents, these compositions lead to fabric deterioration and fades of color after repeated laundering. Because of that manufacturers starts to seek for new detergent formulations in liquid form in order to prevent graying, color fading and deterioration of fabrics while providing good cleaning performance. The liquid detergents generally do not contain bleaching agents which means that they do not harm the textiles, fade the color of them. However, liquid formulations may suffer from reduced cleaning performance and graying of textiles. The graying of fabrics during washings is occurred as a result of redeposition of removed dirt onto textiles. Washing or cleaning formulations generally contain additive(s) to improve their washing or cleaning performance. For the anti-graying of fabrics, washing or cleaning formulations are empowered with the addition of graying inhibitors which prevents the redeposition of finely distributed soils that has been removed previously. Besides the cleaning, anti-graying and color protection performance, consumers looks for products aesthetically appealing which is perceived as a cue about the performance of the cleaning composition. As a result, they tend to prefer buying clear or transparent products which offers an aesthetic indication of purity and cleaning sensation. The clarity and/or transparency of a cleaning composition can convince them about the effectiveness, performance and reliability of the cleaning. It has been a challenge to provide a liquid laundry detergent composition having anti-graying effect and good cleaning performance while maintaining its aesthetic appeal. Therefore, it is an object of the present invention to provide a transparent liquid laundry detergent.
Further object of the present invention is to provide a transparent liquid laundry detergent composition having anti-graying effect.
The use of carboxymethyl cellulose derivatives as graying inhibitors are known from US7842658B2, EP1989282B1 . The liquid laundry detergents studied in these patents are transparent however; these applications require the use of carboxymethyl cellulose derivatives specific in structure or in size since the use of carboxymethyl cellulose derivatives in liquid detergent formulations especially in transparent formulations have strong limitations due to their low solubility in surfactant systems and strong thickening effect in aqueous systems. When they are incorporated into liquid formulations, the products may become no longer flowable or pourable during the storage which makes the handling, using and dosing of the detergent difficult. Besides, the presence of incompletely dissolved carboxymethyl cellulose particles in products results also in poor aesthetics.
The present invention overcomes above mentioned problems by formulating a liquid laundry detergent having anti-graying effect which also provides good cleaning performance through the synergistic effect of ingredients of the detergent composition. The present invention cleaning composition allows the consumer to maintain using the product to its full extent by facilitating a safer, environmentally friendly, effective, and inexpensive cleaning. The present invention liquid cleaning composition is transparent in nature which is a sign of phase stability and appealing to the customer.
SUMMARY OF THE INVENTION
The above mentioned objectives are met by the transparent liquid cleaning composition according to the present invention. The present inventors have found that a liquid cleaning composition involving enzymes, anti-redeposition agent as specified hereinbelow, represent good anti-graying effect. Furthermore, said liquid cleaning composition comprises anionic surfactants, fatty acid soap, Si-free foam suppressor as specified hereinbelow which exhibits high transparency thorough the synergistic effects of the ingredients.
The transparent liquid cleaning composition does not contain any bleaching agents so that the composition doesn't deteriorate either the fabric or the colors of the textiles. Moreover, the pH of the composition is neutral which assist the protection of fabrics and the color of the textiles. Generally, the compositions having highly alkaline pH destroy either the fabric, or the colors of the textiles and also leads to pilling that make the fabrics look older and detrited.
An object of the present invention is to provide a liquid laundry detergent composition inhibiting graying of fabrics to protect their textiles and colors from looking older and worn. Another object of the present invention is to provide a transparent liquid laundry detergent composition for an aesthetic indication of purity which convinces the customers about the effectiveness, performance and reliability of the cleaning.
It is further an object of the present invention to provide a transparent liquid laundry detergent composition free from bleaching agents having neutral pH to minimize the deterioration of the fabrics and fading of colors after repeated laundering operations.
Therefore, to achieve the foregoing and other objects and in accordance with the purpose of the present invention, as embodied and described herein the liquid laundry detergent composition having anti-graying effect comprises; a. Anionic surfactant mixture from 1 .0 wt.-% to 35.0 wt.-%
b. A liquid fatty acid soap from 0.10 wt.-% to 5.0 wt.-%
c. Foam suppressor from 0.20 wt-% to 1 .Owt.-%
d. Enzyme mixture comprising cellulase from 0.20wt.-%to 1 .50wt.-%
e. Anti-redeposition agent from 0.05 wt.-% to 2.0wt.-%
f. Builder from 0.20wt.-% to 5.0wt.-%
by weight of total composition wherein said the anionic surfactant mixture comprising alfa olefin sulfonate from 0.3 wt.-% to 5.0 wt.-% and said foam suppressor is Si-free,
wherein said liquid laundry detergent composition is transparent
It was found that the present invention composition also provides good cleaning and stain removal performance.
The present invention overcomes above mentioned problems and achieves above mentioned objects by formulating a transparent liquid laundry detergent composition providing good anti-graying effect without compromising the cleaning and stain removal performance of the cleaning composition.
The present invention cleaning composition allows the consumer to use the product to its full extent to achieve good anti-graying effect, good transparency, good cleaning and stain removal performance by facilitating a safer, environmentally friendly, effective, and inexpensive cleaning.
DISCLOSURE OF THE INVENTION
The present invention relates to liquid laundry detergent composition which is superior to commercially available products on the market with regard to its good anti-graying effect and transparency.
The present invention relates to liquid laundry detergent composition which is superior to commercially available products on the market with regard to its fabric and color care features.
The present invention relates to particulate cleaning product which is superior to commercially available products on the market with regard to having the synergistic effect by utilization of anionic surfactants, fatty acid soap, enzyme mixture, polyethyleneimine, Si-free foam suppressor, optical brightener and builder for the prevention of fabric-graying and color fading without compromising the cleaning and stain removal performance. The term "liquid" is used to refer to pourable type laundry cleaning compositions. Furthermore, laundry detergent composition as mentioned above is used for clear and/or transparent and/or translucent cleaning compositions. The terms are used interchangeably. Liquid cleaning composition and/or liquid cleaning product and/or liquid detergent composition cover the cleaning products for laundry. Laundry detergent composition as mentioned above is used for automatic and/or machine laundering operations. Additionally, the terms cleaning product and/or cleaning composition and/or detergent composition are used interchangeably.
The terms fabric(s), textile(s), article(s) and garment(s) are used interchangeably within the text.
The word "comprising" is used to mean "including" but not necessarily "consisting of" or "composed of." The words "including" or "having" are used meant to be equivalent to "comprising". It should be noted that the examples given in the disclosure of the invention below are used to clarify the invention however, are not intended to limit the invention to those examples. LIQUID DETERGENT COMPOSITION
Liquid detergent composition of the present invention is preferably for liquid laundry cleaning compositions and more preferably, translucent liquid laundry cleaning compositions.
It is particularly preferred that the composition is pourable. The pourable liquid composition is meant that the composition is measured by using a cap or cover of the detergent bottle or by using any article for measuring required amount of detergent. Then, the measured detergent is poured to the dispensing drawer of the washing machine.
SURFACTANTS
Surfactant lowers surface tension of water; act as wetness agent which makes the soil removing possible. Suitable surfactants for such use may be of anionic, cationic, nonionic and amphotheric in nature. Surfactants are used in the present invention in the range of %1 to %50 varying with respect of concentration or purpose of the compositions. The detergent compositions of the present invention comprise anionic and nonionic surfactants. Anionic Surfactants
The anionic surfactants used in the present invention composition comprises sulfate surfactants, linear alkylbenzene sulfonic acid , sodium lauryl ether sulfate, alpha olefin sulfonate, phosphate esters, sulfosuccinate surfactants, sodium dioctyl sulphosuccinate, sulfonate surfactants , alkyl benzene sulfonate, allylsulfate, sodium alkyl glyceryl ether sulfonate, alpha olefin sulfonate, linear alkyl benzene sulfonate, alcohol ether sulfate, dodecyl benzene sulfate, alkyl ethoxy sulfonate, alkylethoxy phosphate, and mixtures thereof .
The transparent laundry detergent composition of the present invention comprises mixture of anionic surfactants. The application of anionic surfactant mixture supports the transparency of the detergent composition of the present invention and also, improves the cleaning performance.
The preferred anionic surfactant is linear alkyl benzene sulfonic acid sodium salt (LABSA.Na). LABSA.Na is manufactured by the sulphonation of linear alkyl benzene (LAB), which produces linear alkyl benzene sulfonic acid (LABSA), and then neutralized with sodium hydroxide to yield LABSA.Na. The LAB used in LABSA.Na manufacturing may be HF and/or Detal type. The LAB used in LABSA.Na manufacturing comprises max. 1 % C9 phenyl, 8-18% C10 phenyl, 26-38% Cn phenyl, 26-38% Ci2 phenyl, 15-27% C13 phenyl, max. 1 % Ci4 phenyl by total weight of LAB. 2-phenyl isomer content of the LAB may be 15-22% by weight for HF type, and 25-35% by weight for Detal type. The resulting LABSA.Na has a solid matter of at least 96% by weight, and demonstrates the similar carbon distribution of raw material LAB. The use of LABSA-Na less than 1 .0 wt.-% does not exhibit efficient cleaning performance. On the other hand, the use of LABSA.Na higher than 15.0wt.-% does not show any noticeable change in the cleaning performance. Besides, the excess use of LABSA.Na leads to gelation. Therefore, transparent liquid cleaning composition of the present invention comprises LABSA-Na from 1 .0wt.-% to 15.0 wt.- %, preferably from 2.0 wt.-% to 12.0wt.-% of the total composition.
Transparent liquid laundry detergent of the present invention comprises alkyl ether sulfates (AES).
Alkyl ether sulfates (AES) are also called as alcohol ethoxyl sulfates (AEOS), resulting from the sulfation of an ethoxylated alcohol. Alcohol ethoxyl sulfates included in the present invention composition is C-io-C-is alkyl alkoxy sulfates and also known as alkyl polyethoxylate sulfates which can be represented by the general formula
R'-O-(C2H4O)n-SO3M
Wherein M is a cation, R' can be a C8-C2o alkyl group, n is from about 1 to 20 whereby "n" representing the number of ethoxy group existing in the each chain. In one embodiment of the present invention, R' is a Ci2-Ci6, n is from about 1 to 6.
The preferred alkyl ether sulfate surfactant of the present invention composition is sodium lauryl ether sulfate having Ci2-C carbon chain distribution. More preferably sodium lauryl ether sulfate having 1 to 6 ethoxy groups, most preferably having 2 ethoxy groups. The use of low levels of alkyl ether sulfate (AES) surfactant in a surfactant system substantially reduces the tendency of the anionic surfactant to precipitation under high wash-water hardness. The use of SLES less than 1 .0wt.-% does not exhibit efficient cleaning performance whereas SLES higher than 15.0wt.-% does not show any noticeable change in the cleaning performance. Beside, high amounts of SLES use cause the excessive foam formation during laundering which adversely affects the performance of enzymes and surfactants. The presence of excessive foam reduces the cleaning performance of fabrics since the excessive foam presence prevents the physical friction between the fabrics which helps the removal of soils. Additionally, excessive foam during laundering complicates the rinsing process and requires extra water.
Therefore, transparent liquid cleaning composition of the present invention comprises SLES from 1 .Owt.-% to 15.0 wt.-%, preferably from 2.0wt.-% to 12.0wt.-% of the total composition.
Transparent liquid laundry detergent of the present invention comprises alpha olefin sulphonate, also. Alpha olefin sulfonate (AOS), has a function similar to AES. The use of AOS in combination with linear alkyl sulfonate (LAS) reduces the surface tension and critical micelle concentration to a minimum. Thereby the mixed micelles improve hard-water tolerance of LAS and reduce precipitation of LAS by calcium which leads to superior detergency, low ash deposit and better stain-removing ability when compared with products containing LAS as the sole active surfactant. The alpha olefin sulfonates, including long-chain alkene sulfonates, long-chain hydroxyalkane sulfonates or mixtures of alkene sulfonates and hydroxyalkane sulfonates can be prepared by the reaction of sulfur trioxide (SO3) with long-chain olefins having 8 to 25, preferably 12 to 21 carbon atoms and having the formula
RCH=CHR'
wherein R is a higher alkyl group of 6 to 23 carbons and R1 is an alkyl group of 1 to 17 carbons or hydrogen.
During the sulphonation process, alkene sulfonic acids occur as preliminary products and various sultones are formed which are then treated to convert the sultones to sulfonates.
The preferred alpha olefin sulfonate surfactant of the present invention composition is sodium salt of alpha olefin sulfonate having C -Ci6 carbon chain distribution. The use of alpha olefin sulfonate according to present invention improves hard-water tolerance of LAS and reduces precipitation of LAS by calcium, which leads to improved transparency of liquid laundry detergent of the present invention. The use of alpha olefin sulfonate in amounts less than 0.3 wt.-% decreases the solubility of the other ingredients present in the composition. As a result, the transparency of the composition is destroyed since the cloudy point of it is increased. As a result, the composition becomes blurred. The unwanted blurriness affects the consumers' perceptions negatively. The use of AOS higher than 5.0wt.-% does not show any noticeable change in the cleaning performance. Therefore, transparent liquid cleaning composition of the present invention comprises alpha olefin sulfonate from 1 .2wt.-% to 5.0wt.,%, preferably from 1 .4 wt.-% to 4.0wt.-% of the total composition.
Transparent liquid laundry detergent of the present invention comprises fatty acid soap, also. Anionic surfactants also include fatty acid soaps-i.e., fully neutralized fatty acids. The fatty acids are added in non-neutralized form at the beginning of the process and then, they are converted into neutralized form by using NaOH solution.
Transparent liquid laundry detergent of the present invention comprises any fatty acids comprising but not limited to lauric, myristic, palmitic, stearic, oleic, linoleic acid and mixtures thereof. The fatty acid soap of the present invention composition is selected from fatty acids which do not form crispy solid at room temperature. The preferred fatty acid soap of the present invention is oleic acid which is liquid at room temperature. The preferred oleic acid of the present invention having carbon chain length is from CQ to C-is to help to induce transparency. Besides, preferred fatty acid soap is an oleic acid having carbon distribution of maximum 1 1 % C6-Ci8 and wherein minimum 75% of oleic acid is monounsaturated and maximum 15% is di unsaturated.
The fatty acid soap less than 0.1 % cannot provide softness to the fabric. The use of fatty acid higher than 5.0 % leads to phase separation and destruction of transparency of the composition. The compositions having phase separation and turbidity affects consumers' perception negatively.
The transparent liquid laundry detergent of the present invention comprises fatty acid soap from 0.1 wt.-% to 5.0 wt.-%, preferably from 0.2 wt.-% to 4.0 wt.-% of the total composition.
Nonionic Surfactants
The present invention composition comprises nonionic surfactant.
The nonionic surfactants of the present invention can be selected from the groups of ethoxylated alcohols, ethoxylated alkyl phenols, fatty acid esters, alkylpolyglucosides, polyalcohols and ethoxylated polyalcohols.
The preferred non-ionic surfactant group is ethoxylated alcohols which can be chosen from the group of Ci2-Ci8 fatty alcohol ethoxylates with 5-9 EO, Ci2-Ci4 fatty alcohol ethoxylates 6-10 EO, Ci6-Ci8 fatty alcohol ethoxylates with 10-80 EO, C13-C15 oxo alcohol ethoxylates with 3-1 1 EO, C10-C18 alcohol ethoxylates with 5-7 EO, C13 oxo alcohol ethoxylates with 2-20 EO, C10 guerbet alcohol ethoxylates with 3-14 EO, C10 oxo alcohol ethoxylates with 3-1 1 EO. The preferred nonionic surfactant of the present invention is C13-C15 oxo alcohol ethoxylates with 3-1 1 EO, more preferably the nonionic surfactant of the present invention is oxo alcohol ethoxylate wherein ethoxyl group number is 5 to 7 and most preferably the nonionic surfactant of the present invention is oxo alcohol ethoxylate wherein ethoxyl group number is 7.
The use of nonionic less than 1 .0 % reduces the cleaning performance of the composition. Besides, insufficient usage of nonionic surfactant decreases the viscosity of the composition and its fluidity increases. This affects consumers adversely about the performance of the composition. On the other hand, the use of nonionic surfactant higher than 10.0 % increases the cloudy point of the composition and thus, its transparency is destroyed. Therefore, transparent liquid laundry detergent of the present invention comprises nonionic surfactant from 1 .0wt.-% to 10.0 wt.-%, preferably from 2.0wt.-% to 8.0wt.-% of the total composition. ANTI-REDEPOSITION AGENT
During the laundering of fabrics, the removed soil can be suspended in the wash liquor and then, this soil may redeposit onto the surface of the fabric causing dulling or graying which is noticeable on white fabrics. This problem can be minimized by the use of anti-redeposition or whiteness maintenance agents in cleaning compositions. There exists several compounds that can be used as anti-redeposition agent or anti- graying agents which are water-soluble copolymers of acrylic or methacrylic acid with acrylic or methacrylic acid-ethylene oxide condensates see (U.S. Pat. No. 3,719,647), cellulose and carboxymethylcellulose derivatives (U.S. Pat. No. 3,597,416), Ethoxylated Polyethyleneimines (PEI) (CA 121 0009).
Additionally, PEI is employed in the cleaning composition in order to boost the performance of surfactants. As a result, the required amount of anionic surfactant is reduced which provides economic feasibility. Transparent liquid laundry detergent of the present invention comprises ethoxylated polyethyleneimine as anti-graying polymers.
This exhoxylated PEI helps to prevent redeposition of soil from the wash water onto the textiles and thus, this prevents graying of textiles while keeping the colors bright. The use of ethoxylated PEI less than 0.05wt.-% does not represent good anti-graying effect whereas the use of ethoxylated PEI higher than 2.00 % does not show any noticeable change in the cleaning performance. Therefore, transparent liquid laundry detergent of the present invention comprises ethoxylated PEI from 0.05 wt.-% to 2.0 wt.-%, preferably from 0.10 wt.-% to 1 .50 wt.-% of the total composition.
ENZYME MIXTURE:
The enzymes used in the present invention composition comprise proteases, pectinases, lipases, mannanase, amylases, cellulases and mixtures of the aforesaid enzymes. All these hydrolases contribute to the removal of stains such as protein-, grease-, or starch-containing stains, and graying during laundering. Cellulases represent anti-pilling and anti-redeposition features while laundering that enables the anti-graying, color protection of the textiles and provides whiteness permanence. Additionally, cellulose contributes to the textile softening as a result of removing pilling.
Transparent liquid laundry detergent of the present invention comprises mixture of enzymes like proteases, pectinases, lipases, mannanase, amylases, cellulases in order to provide good stain removal and cleaning performance without sacrificing the anti-graying, color protection and softening of the fabrics. The use of enzyme mixture less than 0.10wt.-% does not show good anti-graying and color protection effect and also, cleaning performance of the composition based on enzyme sensitive stains are reduced. However, the use of enzyme mixture higher than 1 .50% affects the fabric adversely by thinning of the fabrics.
Therefore, transparent liquid laundry detergent of the present invention comprises enzyme mixture comprising cellulase from 0.20 wt.-% to 1 .50 wt.-%, preferably from 0.30 wt.-% to 1 .40 wt.-% of the total composition. FOAM SUPRESSOR
Foam is a normal side effect of machine washing while using detergents. However, generated foam during product usage sometimes perceived as the failure of the product as in the case of products in which the rinsing step is not desired. Also, foam has to disappear to provide a signal of good rinse ability.
Foam is crucial to the quality of a laundry wash. In moderation, it protects the laundry. But too much of it can impair the product performance by interfering with the mechanical agitation or contact of the surfactant solution with the soiled wash load. Additionally, too much foam also affects the machine's performance and the washing process itself and, what is more, increases water consumption. Reducing or impairing formation of foam amount can be achieved by using low foaming surfactants which is not compatible with the expected functional performance or using antifoam agents which are able to reduce foam during the product usage.
Antifoam additives are usually surface active compounds weakly soluble in the foaming surfactant solution. They can be derived from various natural fats and oils, petroleum derivatives or silicone oils. Antifoams can be roughly classified into two groups as surface-active materials and hydrophobic antifoams wherein antifoams based on surface active materials lead to foam breakage by acting at the air-liquid interface in the foam. They replace the surfactants to be able to form stable foam film and build a different type of filmless efficient in foaming.
The use of nonionic surfactants as foam suppressing agents in aqueous cleaning solutions has already been known for a long time. It has been found that the use of fatty alcohol alkoxylates as antifoaming agents has foam suppressor ability. Additionally, it has been found that the use of fatty alcohol alkoxylates contributes to the production of liquid laundry detergents with high transparency.
Furthermore, the use of fatty alcohol alkoxylate antifoaming agents decreases the disadvantages of soaps wherein the disadvantages of soaps are that their calcium forms depose on the fabric, leading to organic encrustation and consequently, graying/yellowing of the fabrics.
Transparent liquid laundry detergent of the present invention comprises fatty alcohol alkoxylate based antifoaming agents wherein preferred fatty alcohol alkoxylate is propoxylated alcohol having about 9 to 1 1 carbon atoms. The use of antifoaming agent less than 0.2% causes the formation extra foam during laundering that adversely affects the performance of enzymes and surfactants. On the other hand, the use of antifoaming agent higher than 1 .0 % prevents the foam generation. The absence of foam during laundering affects the consumers' perception adversely about the cleaning performance of the composition.
Therefore, transparent liquid laundry detergent of the present invention comprises antifoaming agent from 0.20 wt.-% to 1 .0 wt.-%, preferably from 0.30wt.-% to 0.90 wt.-% of the total composition.
Si-based foam suppressors are affecting transparency negatively compared to surfactant based foam suppressors. Therefore, they are not used in the present invention composition. BUILDER
Builders have multiple anionic functional groups which are capable to bind by complexation earth alkaline metal cations. First commercially used builders were polyphosphates which are still in use. They were able to capture multivalent metal cations and remove it from the medium by precipitating, since phosphate salts of these metal cations are less soluble in water.
Builders are incorporated into cleaning compositions in order to soften the water, boost the detergency effect, inhibit the redeposition and achieve a suspension of the soil during washing process. Additionally, they are expected to contribute the notable cleaning performance by providing alkalinity necessary for washing process, by improving the adsorption capacity and thus in turn effectiveness of surfactants.
Builders are added to the detergent composition primarily to complex with Ca2+ and Mg2+ and thereby reduce hardness of water. If these metal ions are captured, they are precipitated on fabrics that lead to graying of the fabrics. In addition to removing Ca2+ and Mg2+ ions, phosphonate builders are incorporated in detergent compositions in order to emulsify soil particles, reduce soil re-deposition by suspending the soil in the wash liquor and provide alkalinity which assists in dissolving oil-based soils. Otherwise, the use of an ineffective builder or the use of an ineffective amount of a builder reduces the cleaning performance of surfactants.
The detergent compositions of the present invention comprise phosphonates below 5%, preferably below 3% by weight of the total composition. Phosphonates can be selected from amino tris(methylene phosphonic acid) - ATMP, (1 -hydroxyethylidene) diphosphonic acid - HEDP, diethylenetriamine penta(methylene phosphonic acid) - DTPMP or their respective salts. The preferred type of phosphonate in the present detergent compositions is DTPMP sodium salt (DTPMP. Na).
Particulate cleaning composition of the present invention comprises builder from 0.20 wt.-% to 5.0wt.-%, preferably from 0.50 wt.-% to 3.0 wt.-% of the total composition. OPTICAL BRITHENER
Transparent liquid laundry detergent composition of present invention comprises optical brighteners from 0.05 wt.-% to 0.50 wt.-%, preferably from 0.06 wt.-% to 0.40 wt.-% of the total composition. Optical brighteners can be selected from carbocycles, such as distyrylbenzenes, distyrylbiphenyls, and divinylstilbenes; triazinylaminostilbenes; stilbenyl-2H-triazoles, such as stilbenyl-2Hnaphthol[1 ,2- d]triazoles and bis(1 ,2,3-triazol-2-yl)stilbenes; benzoxazoles, such as stilbenyl benzoxazoles and bis(benzoxazoles); furans, benzofurans and benzimidazoles, such as bis(benzo[b]furan-2-yl)biphenyls and cationic benzimidizoles; 1 ,3-diphenyl-2- pyrazolines; coumarins; naphthalimides; 1 ,3,5-triazin-2-yl derivatives; methinecyanines; and dibenzothiphene-5,5-dioxide. 4,4'-bis(2-sodium sulfonate stryl) biphenyl is preferably used as optical brightener. OTHER INGREDIENTS
Perfume: Perfume oils and/or encapsulated perfumes can be added to detergent compositions preferably in the amount of >0 wt.-% to 2 wt.-%.
Enzyme Stabilizer: Enzyme stabilizers are used to improve the stability of enzymes in liqud cleaning compositions. The enzyme stabilizers can be added to detergent compositions in the amount of >0.10 wt.-% to 1 .50 wt.-%. The present invention liquid laundry detergent comprises boraxdecahydrate and propylene glycol as enzyme stabilizers. Preservatives: Preservatives can be optionally used in the present invention compositions at a concentration of 0 % to 3 % weight percentage comprise benzalkonium chloride, benzethonium chloride, sodium benzoate, 5-bromo-5-nitro- 1 ,3 dioxane, 2-bromo-2- nitropropane-1 , 3-diol, alkyl trimethyl ammonium bromide; N- (hydroxymethyl)-N- (1 , 3- dihydroxy methyl-2, 5-dioxo-4-imidaxolidinyl-N'- (hydroxy methyl) urea; 1 -3-dimethyol- 5, 5-dimethyl hydantoin; formaldehyde; iodopropynl butyl carbamate, butyl paraben; ethyl paraben; methyl paraben; propyl paraben, mixture of methyl isothiazolinone/methyl-chloroisothiazoline; mixture of phenoxythanol/butyl paraben/methyl paraben/propylparaben; 2-phenoxyethanol; tris- hydroxyethyl-hexahydrotriazine; benzisothiolinone; methylisothiazolinone; 5-chloro-2- methyl-4-isothiazol- 3-one; 2-methyl-4-isothiazol- 3-one ; 1 ,2-dibromo-2, 4- dicyanobutane and mixtures thereof. Preferred preservative of the present invention is mixture of benzisothiazolinone and methylisothiazolinone.
PREPERATION METHOD OF THE CLEANING COMPOSITION
Example 1 : Preparation of a transparent liquid cleaning composition of the present invention
1 /3 of total amount of distilled water was transferred to reaction mixer and heated to 75°C. Then, 0.75 g of borax decahydrate was added and stirred for 5 min to dissolve. 2.00 g of Oleic acid which is liquidified at 50-55°C, was added to the reaction mixture under continuous stirring at 75°C and neutralized with 1 .3 g of aq. NaOH solution (49%). Subsequent to the transfer of 1 /3 of total amount of distilled water to the reaction mixture, 0.20 g of Cg-Cn propoxylated fatty alcohol as foam suppressor and 3.00 g of LABSA, were added under continuous stirring. LABSA is transferred into LABSA.Na with the addition of 0.50 g of aq. NaOH solution (49%) and stirred for further 15 min. 2.0 g of alpha olefin sulfonate and 0.02 g 4,4'-bis(2-sodium sulfonate stryl) biphenyl dissolved in water were added under continuous stirring. After that, 0.75 g of propylene glycol and 1 .0 g of diethylenetriamine penta(methylene phosphonic acid) (DTPMP.Na) were added. After falling of the temperature of the mixture to 35-40°C, 5.0 g of sodium lauryl ether sulfate having 2EO was added and stirred for further 15 min until dissolution. 4.0 g of C13-C15 oxo alcohol ethoxylates having 7EO is added and stirred for 20 min. After adding of 0.30 g of ethoxylated polyethyleneimine, the pH of the cleaning composition adjusted to 8.4 and let to cool to room temperature.
After that 1 .20 g of the enzyme mixture comprising cellulase, 0.095 g of preservative and 1 .0 g of perfume were added. The resulting transparent liquid laundry cleaning composition is completed with the addition of 1 /3 of total amount of distilled water.
Example 2: 1 /3 of total amount of distilled water was transferred to reaction mixer and heated to 75°C. Then, 0.50 g of borax decahydrate was added and stirred for 5 min. 2.00 g of oleic acid liquidified at 50-55°C was added to reaction mixture under continuous stirring at 75°C.
Subsequent to the transfer of 1 /3 of total amount of distilled water to the reaction mixture, 0.20 g of Si-based foam suppressor, 2.00 g of LABSA and 2.00 g of alpha olefin sulfonate were added under continuous stirring. After that, 0.50 g of propylene glycol and 1 .0 g of diethylenetriamine penta(methylene phosphonic acid) (DTPMP.Na) were added. Later, when the temperature of the reaction mixture falls to 35-40°C, 5.00 g of sodium lauryl ether sulfate having 2EO was added to reaction mixture which was stirred for further 15 min until dissolution. After the addition of 4.00 g of C13-C15 oxo alcohol ethoxylates having 7EO, the mixture was stirred for 20 min. After adding of 0.20 g of ethoxylated polyethyleneimine, the pH of the reaction medium was controlled. The pH of the medium should be around 8.4. Later, the mixture was let to cool to room temperature.
When the temperature of the reaction medium became around 30°C, 0.10 g of the enzyme mixture comprising cellulase, 0.10 g of preservative and 1 .40 g of perfume were added. The liquid laundry cleaning composition is completed with the addition of 1 /3 of total amount of distilled water. Example 3: 1 /3 of total amount of distilled water was transferred to reaction mixer and heated to 75°C. Then, 1 .00 g of borax decahydrate was added and stirred for 5 min. 2.00 g of Oleic acid liquidified at 50-55°C was added to reaction mixture under continuous stirring at 75°C hereafter oleic acid was neutralized with 1 .30 g of NaOH solution (49%).
Subsequent to the transfer of 1 /3 of total amount of distilled water to the reaction mixture, 0.20 g of Cg-C-n propoxylated fatty alcohol as foam suppressor, 3.00 g of LABSA were added under continuous stirring. LABSA is transferred into LABSA.Na with the addition of 0.50 g of aq. NaOH solution (49%) and stirred for further 15 min. 1 .00 g of alpha olefin sulfonate and 0.02 g 4,4'-bis(2-sodium sulfonate stryl) biphenyl dissolved in water were added under continuous stirring. After that, 1 .00 g of propylene glycol and 1 .0 g of diethylenetriamine penta(methylene phosphonic acid) (DTPMP.Na) were added. Later, when the temperature of the reaction mixture falls to 35-40°C, 5.00 g of sodium lauryl ether sulfate having 2EO was added to reaction mixture which was stirred for further 15 min until dissolution. After the addition of 4.00 g of C13-C15 oxo alcohol ethoxylates having 7EO, the mixture was stirred for 20 min. After adding of 0.30 g of ethoxylated polyethyleneimine, the pH of the reaction medium was controlled. The pH of the medium should be around 8.4. Later, the mixture was let to cool to room temperature.
When the temperature of the reaction medium became around 30°C, 1 .20 g of the enzyme mixture comprising cellulase, 0.10 g of preservative and 1 .20 g of perfume were added. The liquid laundry cleaning composition is completed with the addition of 1 /3 of total amount of distilled water.
Table 1 : Composition of the Examples 1 -3.
Figure imgf000015_0001
*Enzyme Mixture 1 .20 0.10 1 .20
Water Completed to Completed to Completed to
100% 100% 100%
*Oleic acid: Palmera A1813
*Alpha olefin sulfonate (sodium salt of alpha olefin sulfonate (C -Ci6)) : Hostapur OS Liquid
*Ethoxylated polyethyleneimine: Sokalan HP20
*Foam Supressor Si-Free (Cg-Cn propoxylated alcohol): Degrassal SD 20
*Si based Foam suppressor: Silicon DB 310
*Enzyme Mixture: Medley Pure and Medley Glow
MEASUREMENTS, TEST and EVLUATION METHODS
EVALUATION METHODS
Spectrophotometric Evaluation of Anti-Grayinq: For spectrophotometric assessment of performance of transparent liquid laundry detergent composition of the present invention, washing tests are carried out with WFK 10000 Standart Cotton Fabric, WFK 20000 Standart Polycotton Fabric, WFK 30000 Standart Polyester Fabric, WFK 12000 Standart Cotton Terry Cloth Fabric, WFK 13000 Standart Cotton Twill Fabric, WFK 15000 Standart Cotton Knitwear Fabricare in the same test conditions.
Tests were carried out in automated (Miele Edition 1 1 ) washing machine by using washing programs for cottons. Washing is continued with rinsing and squeezing stages. The detergent amount used in the washing programme was 65.0 imL. The main wash cycle was performed at 40°C. The washed items were then hanged and dried at room temperature. Following the drying, the washed items were ironed and evaluated. The evaluations are reported as an average of two fabrics. Washings were performed five times and after the fifth washing, the fabrics were value analyzed. During washing, WFK 10991 Graying Swatches is also added.
Thereafter, anti-graying results of washings are compared by spectrophotometric evaluation by using Konika Minolta Spectrophotometer based on the CIE Lab. Colour Space.
Spectrophotometric Evaluation of Color Protection: For spectrophotometric assessment of the performance of transparent liquid laundry detergent composition of the present invention, washing tests with AISE-03 Green Vat Dye 145cm width - on Cotton, AISE-05 Blue Vat Dye 145cm width - on Cotton, AISE-21 Black (6%) Reactive Dye 145cm width - on Cotton, AISE-22 Orange Reactive 145cm width - on Cotton, AISE-26 Violet Reactive Dye 145cm width - on Cotton, AISE-29 Reactive Mix: Orange 107/Red 198/Black 5 145cm width - on Cotton, carried out in the same test conditions. Tests were carried out in automated (Miele Edition 1 1 ) washing machine by using washing programme for cottons. Washing is continued with rinsing and squeezing stages. The detergent amount used in the washing programme was 65.0 imL The main wash cycle was performed at 40°C. The washed items were then hanged and dried at room temperature. Following the drying, the washed items were ironed and evaluated. The evaluations are reported as an average of four fabrics. Washings were performed twenty times and after the twentieth washing, the fabrics were value analyzed.
Thereafter, color protection results of washings are compared by spectrophotometric evaluation by using Konika Minolta Spectrophotometer based on the CIE Lab. Colour Space.
Spectrophotometric Evaluation of Whiteness: All test procedure containing; washing and drying were done under the supervision of Bureau Veritas Consumer Products Services Turkey (BV CPS TURKEY); spectrophotometric evaluations were done by BV CPS TURKEY.
The detergent amount used in the washing programme was 65.0 imL The fabric load is 3.0 kg for each washing. The main wash cycle was performed at 40°C. The washed items were then hanged and dried at room temperature. The evaluations are reported as an average of calculation after twenty washings.
Thereafter whiteness performances of both washings are compared by spectrophotometric evaluation by performing Gretag Macbeth Color Eye 7000 A.
Visual Evaluation of Transparency: For visual evaluation of transparency of the present invention compositions, the liquid compositions are visually examined for the presence of sediments and suspended matter under the light. Samples which are clear having full transmittance of light and showing no sediments are called as transparent. Samples showing sediments or do not allow transmittance of light due to the presence of suspended matter are called non-transparent.
MEASUREMENTS and TEST METHODS
Anti-Grayinq Performance: Comparative Washing Results of Example 1-3 Compositions for Anti-Graying Performance
Anti-graying performances of example 1-3 compositions are determined spectrophotometrically by using WFK 10991 Graying Swatches as soil. Different types of fabric in the presence of WFK 10991 Graying Swatches were washed. The evaluations are reported as an average of two fabrics. Washings were performed five times and after the fifth washing, the fabrics were value analyzed. The test results are demonstrated in table 2.
Table 2: Spectrophotometric Evaluation Results of Example 1-3 Compositions for Anti-Graying Performance Reference Example 1 Example 2 Example 3
FABRICS Values 1st 5th 1st 5th 1st 5th wash wash wash wash wash wash
Cotton 101 ,4 105,4 1 19,91 105,18 107,49 107,31 1 18,95
Polycotton 94,48 97,76 107,90 98,12 94,36 97,85 106,1 1
Polyester 82,22 81 ,16 88,77 80,5 79,2 83,26 89,38
Cotton Terry 138,75 142,61 142,58 137,93 128,27 141 ,24 142,94
Cloth
Cotton Twill 126,81 124,75 123,55 1 17,54 105,85 124,55 123,39
Cotton 89,79 1 16,12 128,84 1 17,54 105,85 1 14,55 127,39
Knitwear
*Reference values belong to spectrophotometric evaluation values of unwashed fabrics.
Spectrophotometric evaluation results shown in table 2 shows that graying of fabrics are inhibited even after multiple washings. Example 1 composition represents better anti-graying effect than example 2 compositions which can be attributed that example 1 composition contains higher amount of anti-redeposition agent and enzyme mixture. Example 2 composition has lower anti-graying effect due to the presence of low amount of anti-redeposition agent and enzyme mixture especially cellulose. Additionally, the presence of Si-based foam suppressor renders the example 2 composition non-transparent. The use of higher amount of anti-redeposition agent prevents redeposition of soil onto the surface of the fabric better so that this reduces the dulling or graying of the fabrics. Additionally, the use of higher amount of enzymes particularly cellulases represent anti-pilling and anti-redeposition features which provides the anti-graying of the fabrics. Therefore, it is assumed that the higher the amounts of anti-redeposition agent and enzyme mixture, the better the anti- graying effect of the cleaning composition will be. When compared to example 3 composition, the results of example 1 and 3 compositions are quite close to each other with regard to ant-graying effect since the amount of anti-redeposition agent and enzyme mixture are same. On the other hand, the example 3 composition is not transparent which is taught to be due to the low amount of alpha olefin sulfonate.
Color Protection Performance: Comparative Washing Results of Example 1-3 Compositions for Color Protection Performance
Color protection performances of example 1-3 compositions are determined spectrophotometrically. The evaluations are reported as an average of four fabrics. Different types of fabrics having different colors were washed twenty times and after the twentieth washing, the fabrics were value analyzed. The test results are demonstrated in table 3.
Table 3: Spectrophotometric Evaluation Results of Example 1-3 Compositions for Color Protection Performance Example 1 Example 2 Example 3
SAMPLES 1st 20th 1st 20th 1st 20th
wash wash wash wash wash wash
AISE-03 1 ,37 1 ,90 1 ,46 1 ,16 1 ,47 1 ,92
AISE-05 1 ,06 3,99 1 ,50 2,61 1 ,19 4,01
AISE-21 0,77 0,78 0,66 0,49 0,79 0,78
AISE-22 2,68 2,96 2,71 2,36 2,76 2,92
AISE-26 1 ,67 3,63 2,17 3,63 1 ,61 3,60
AISE-29 0,82 1 ,07 1 ,35 0,9 0,91 1 ,06
Spectrophotometric evaluation results shown in table 3 clearly show that color fading of fabrics is inhibited even after multiple washings. Example 1 composition provides better color protection effect even after 20th wash than example 2 composition. This effect of example 1 composition can be attributed to its composition having higher amount of anti-redeposition agent and enzyme mixture. Example 2 composition has lower anti-graying effect due to the presence of low amount of anti-redeposition agent and enzyme mixture especially cellulose. The use of higher amount of anti- redeposition agent prevents redeposition of soil onto the surface of the fabric better so that this reduces the dulling or graying of the fabrics. Therefore, the colors of the fabrics can be protected better and fabrics keep their color even after multiple washings. Additionally, the use of higher amount of enzymes particularly cellulase represent anti-pilling and anti-redeposition features while laundering that enables the anti-graying, color protection of the fabrics. Therefore, it is assumed that the higher the amounts of anti-redeposition agent and enzyme mixture, the better color protection effect of the cleaning composition. In the case of AISE-26, example 1 and 2 compositions represent close results but example 2 composition is not transparent which is taught to be due to the presence of Si-based foam supressor.
The color protection ability of example 3 is as good as example 1 composition because both compositions contain similar amount of anti-redeposition agent and enzyme mixture. On the other hand, the example 3 composition is not transparent which is taught to be due to the low amount of alpha olefin sulfonate.
Whiteness Performance: Comparative Washing Results of Example 1 Compositions for Whiteness Performance
Whiteness performance of example 1 is determined spectrophotometrically. The evaluations are reported as an average of four fabrics which were washed twenty times and after the twentieth washing, the fabrics were analyzed. The test results are demonstrated in table 4. Table 4: Spectrophotometric Evaluation Results of Example 1 Composition for Whiteness Performance
Figure imgf000020_0001
Spectrophotometric evaluation results shown in table 4 clearly demonstrate that fabrics rinsed with use of example 1 composition containing optical brightener becomes brighter than that of unwashed fabrics even after twenty washings.

Claims

1. A liquid laundry detergent composition having anti-graying effect comprises a. Anionic surfactant mixture from 1 .0 wt.-% to 35.0 wt.-%
b. A liquid fatty acid soap from 0.10 wt.-% to 5.0 wt.-%
c. Foam suppressor from 0.20 wt-% to 1 .0wt.-%
d. Enzyme mixture comprising cellulase from 0.20wt.-%to 1 .50wt.-%
e. Anti-redeposition agent from 0.05 wt.-% to 2.0wt.-%
f. Builder from 0.20wt.-% to 5.0wt.-%
by weight of total composition
wherein said the anionic surfactant mixture comprising alfa olefin sulfonate from 0.3 wt.-% to 5.0 wt.-% and said foam suppressor is Si-free,
wherein said liquid laundry detergent composition is transparent.
2. A transparent liquid laundry detergent composition having anti-graying effect comprising anionic surfactant mixture according to claim 1 , wherein said alfa olefin sulfonate has preferably C -Ci6 olefin chain length and sodium as counter ion.
3. A transparent liquid laundry detergent composition having anti-graying effect comprising anionic surfactant mixture involving alfa olefin sulfonate according to claim 1 , wherein said anionic surfactant mixture is comprised from sodium salt of linear alkyl benzene sulfonate and alkyl ether sulfate.
4. A transparent liquid laundry detergent composition having anti-graying effect comprising anionic surfactant mixture according to claim 1 , wherein said anionic surfactant mixture comprises
i. Sodium salt of linear alkyl benzene sulphonate from 1 .0wt.-% to 15.0wt.-% ii. alkyl ether sulfate from 1 .0 wt.-% to 15.0 wt.-%
iii. alpha olefin sulfonate 1 .2 wt.-% to 5.0 wt.-%
5. A transparent liquid laundry detergent composition having anti-graying effect comprising anionic surfactant mixture according to claim 1 ,
wherein said alkyl ether sulfate has the formula of R'-O-(C2H4O)n-SO3M wherein M is a cation, R' is C8-C20 alkyl group, n: 1 -20, preferably R' is C12-C16 alkyl group, n :1 -6, M is sodium, more preferably R' is C-12-C alkyl group, n
:2.
6. A transparent liquid laundry detergent composition having anti-graying effect comprising fatty acid soap according to claim 1 ,
wherein said fatty acid soap is an oleic acid having carbon distribution of maximum 1 1 % C6-C18, wherein minimum 75% of oleic acid is monounsaturated and maximum 15% is di unsaturated.
7. A transparent liquid laundry detergent composition having anti-graying effect comprising foam suppressor according to claiml ,
wherein said foam suppressor is an alkoxylated fatty alcohol preferably with propoxylated alcohol having about 9 to 1 1 carbon atoms.
8. A transparent liquid laundry detergent composition having anti-graying effect comprising anti-redeposition agent according to claiml ,
wherein said anti-redeposition agent is ethoxylated polyethyleneimine.
9. A transparent liquid laundry detergent composition having anti-graying effect comprising ethoxylated polyethyleneimine anti-redeposition agent according to claim 8, wherein said ethoxylated polyethyleneimine is used between 0.05wt.- % to 2.00 wt.-%, preferably 0.10wt.-% to 1 .50 wt.-% of the total composition.
10. A transparent liquid laundry detergent composition having anti-graying effect comprising builder according to claiml ,
wherein said builder is a phosphonic acid derivative, preferably sodium salt of diethylenetriamine penta(methylene phosphonic acid).
11. A transparent liquid laundry detergent composition having anti-graying effect according to preceding claims,
wherein said composition further comprises nonionic surfactant, optical brightener, perfume, enzyme stabilizer and preservatives.
12. A transparent liquid laundry detergent composition having anti-graying effect according to claim 1 , comprises;
a. 3.00 wt.-% of sodium salt of linear alkyl benzene sulfonate, 5.00 wt.-% of sodium lauryl ether sulfate, 2.0 wt.-% alpha olefin sulfonate
b. 2.00 wt.-% oleic acid
c. 0.20 wt.-% alkoxylated fatty alcohol
d. 1 .20 wt.-% of enzyme mixture comprising cellulase
e. 0.30 wt.-% of ethoxylated polyethyleneimine
g. 1 .0 wt.-% of diethylenetriamine penta(methylene phosphonic acid) by weight of total composition
PCT/TR2016/050565 2016-12-29 2016-12-29 Liquid laundry detergent WO2018124989A1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020123240A1 (en) * 2018-12-13 2020-06-18 Dow Global Technologies Llc Liquid laundry detergent formulation
CN113544250A (en) * 2019-03-26 2021-10-22 联合利华知识产权控股有限公司 combination
US20220186144A1 (en) * 2020-12-15 2022-06-16 Henkel IP & Holding GmbH Unit Dose Laundry Detergent Compositions Containing Soil Release Polymers
WO2022199418A1 (en) * 2021-03-26 2022-09-29 Novozymes A/S Detergent composition with reduced polymer content
US20220356417A1 (en) * 2019-09-29 2022-11-10 Novozymes A/S Deoxyribonuclease uses in detergent composition
US20230193159A1 (en) * 2020-09-28 2023-06-22 The Procter & Gamble Company Laundry detergent composition containing dye fixative and amine-based surfactant

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597416A (en) 1968-05-31 1971-08-03 Procter & Gamble Soil anti-redeposition agents,their use and detergent compositions containing same
US3719647A (en) 1971-01-25 1973-03-06 Procter & Gamble New polymers and detergent compositions containing them
US4597898A (en) * 1982-12-23 1986-07-01 The Proctor & Gamble Company Detergent compositions containing ethoxylated amines having clay soil removal/anti-redeposition properties
CA1210009A (en) 1982-12-23 1986-08-19 Eugene P. Gosselink Ethoxylated amine polymers having clay soil removal/anti-redeposition properties useful in detergent compositions
US20080318830A1 (en) * 2004-10-23 2008-12-25 Frank-Peter Lang Liquid Detergent Comprising a Dye Fixing Agent
US20100105600A1 (en) * 2007-05-07 2010-04-29 Bernhard Guckenbiehl Detergent or Cleaning Agent Comprising Polysaccharide
EP1989282B1 (en) 2006-02-28 2013-04-24 Henkel AG & Co. KGaA Graying-inhibiting liquid washing composition

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597416A (en) 1968-05-31 1971-08-03 Procter & Gamble Soil anti-redeposition agents,their use and detergent compositions containing same
US3719647A (en) 1971-01-25 1973-03-06 Procter & Gamble New polymers and detergent compositions containing them
US4597898A (en) * 1982-12-23 1986-07-01 The Proctor & Gamble Company Detergent compositions containing ethoxylated amines having clay soil removal/anti-redeposition properties
CA1210009A (en) 1982-12-23 1986-08-19 Eugene P. Gosselink Ethoxylated amine polymers having clay soil removal/anti-redeposition properties useful in detergent compositions
US20080318830A1 (en) * 2004-10-23 2008-12-25 Frank-Peter Lang Liquid Detergent Comprising a Dye Fixing Agent
EP1989282B1 (en) 2006-02-28 2013-04-24 Henkel AG & Co. KGaA Graying-inhibiting liquid washing composition
US20100105600A1 (en) * 2007-05-07 2010-04-29 Bernhard Guckenbiehl Detergent or Cleaning Agent Comprising Polysaccharide
US7842658B2 (en) 2007-05-07 2010-11-30 Henkel Ag & Co. Kgaa Detergent or cleaning agent comprising polysaccharide

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020123240A1 (en) * 2018-12-13 2020-06-18 Dow Global Technologies Llc Liquid laundry detergent formulation
CN113166688A (en) * 2018-12-13 2021-07-23 陶氏环球技术有限责任公司 Liquid Laundry Detergent Formulations
US11976256B2 (en) 2018-12-13 2024-05-07 Dow Global Technologies Llc Liquid laundry detergent formulation
CN113166688B (en) * 2018-12-13 2024-12-13 陶氏环球技术有限责任公司 Liquid laundry detergent formulations
CN113544250A (en) * 2019-03-26 2021-10-22 联合利华知识产权控股有限公司 combination
US20220356417A1 (en) * 2019-09-29 2022-11-10 Novozymes A/S Deoxyribonuclease uses in detergent composition
EP4034622A4 (en) * 2019-09-29 2023-10-11 Novozymes A/S Use of cellulase for improvement of sustainability of detergents
US20230193159A1 (en) * 2020-09-28 2023-06-22 The Procter & Gamble Company Laundry detergent composition containing dye fixative and amine-based surfactant
US20220186144A1 (en) * 2020-12-15 2022-06-16 Henkel IP & Holding GmbH Unit Dose Laundry Detergent Compositions Containing Soil Release Polymers
US12084633B2 (en) * 2020-12-15 2024-09-10 Henkel Ag & Co. Kgaa Unit dose laundry detergent compositions containing soil release polymers
WO2022199418A1 (en) * 2021-03-26 2022-09-29 Novozymes A/S Detergent composition with reduced polymer content

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