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WO1994018294A1 - Additif pour detergent, contenant des tensioactifs et des adjuvants - Google Patents

Additif pour detergent, contenant des tensioactifs et des adjuvants Download PDF

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Publication number
WO1994018294A1
WO1994018294A1 PCT/EP1994/000344 EP9400344W WO9418294A1 WO 1994018294 A1 WO1994018294 A1 WO 1994018294A1 EP 9400344 W EP9400344 W EP 9400344W WO 9418294 A1 WO9418294 A1 WO 9418294A1
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WO
WIPO (PCT)
Prior art keywords
weight
detergent additive
additive according
alkali
particulate
Prior art date
Application number
PCT/EP1994/000344
Other languages
German (de)
English (en)
Inventor
Heinz-Manfred Wilsberg
Rolf Puchta
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
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 Henkel Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Priority to EP94907512A priority Critical patent/EP0683811A1/fr
Publication of WO1994018294A1 publication Critical patent/WO1994018294A1/fr

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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites
    • 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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
    • C11D3/1273—Crystalline layered silicates of type NaMeSixO2x+1YH2O
    • 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
    • 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
    • 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
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • 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
    • C11D1/66—Non-ionic compounds

Definitions

  • the invention relates to a powdery, free-flowing, anionic surfactant and builder-containing detergent additive obtained by drying a flowable aqueous suspension of its ingredients, the use of such an additive for the production of powdered detergents and bleaches, in particular for use in household laundry, and a particle support composed of several powder components detergent, cleaning agent or bleach, which contains the detergent additive.
  • the procedure is often such that several, separately manufactured partial components are mixed together to form a finished agent.
  • the individual partial powders can contain different ingredients, which can be selected according to their compatibility with one another and according to their suitability for the intended manufacturing process for the respective partial component. It is advantageous to produce a certain partial powder, to use this as a constant component of the finished agent and to add a large number of different detergents or cleaning agents comparatively simply by admixing various other powdery components that are matched to the respective purpose of the agent produce.
  • European patent application EP 228011 discloses detergents composed of at least two granular components, the first of which contains zeolite and nonionic surfactant and the second of which contains other usual detergent components.
  • the second powder component differs from the first component by the higher anionic surfactant content and the lower nonionic surfactant content.
  • such a distribution of the contents over several separate powdery components has a positive influence on the flowability and the flushing behavior of the entire finished agent.
  • German published patent application DE 3444 960 proposes a powdery component which contains 60 to 80% by weight of zeolite, up to 5% by weight of nonionic surfactant, 3 to 15% by weight of polymeric polycarboxylate, 8 to Contains 18% by weight of water and 0.1 to 8% by weight of a special sodium silicate.
  • Anionic surfactant can be applied to such a powder in a mixture with nonionic surfactant, so that powdery detergents can optionally be obtained after mixing with other conventional constituents.
  • German Offenlegungsschrift DE 38 18829 which describes a spray-dried powder component which essentially differs from the powder component claimed in the aforementioned document by an additional content of water-soluble soap and a higher water content.
  • the detergent behavior should also be improved here by the soap content.
  • the invention accordingly relates to a powdery, free-flowing, anionic surfactant and builder-containing detergent additive obtained by drying a flowable aqueous suspension of its ingredients, comprising from 2% by weight to 25% by weight of synthetic anionic surfactant from sulfate.
  • sulfonate type up to 5% by weight, in particular 1% by weight to 3% by weight of soap if the anionic surfactant is of the sulfonate type, and up to 10% by weight of soap if an additional or sole Anionic surfactant of the sulfate type is present, not more than 7.5% by weight, in particular 0.5% by weight to 4% by weight of nonionic surfactant, up to 10% by weight of amorphous alkali silicate, up to 50% by weight .-% crystal water-containing, at temperatures in the range of 1 ° C to 45 ° C crystal water inorganic salt, 20 wt .-% to 75 wt .-%, calculated as an anhydrous, inorganic water-insoluble builder consisting of alkali metal and / or crystalline alkali ⁇ layered silicate, and a total of less than 7 wt .-%, in particular 0.5 wt .-% to 6 wt .-% water
  • water-free in connection with the inorganic water-insoluble builder component denotes water of crystallization-free substances, as can be obtained by relatively strong heating while maintaining their three-dimensional crystal structure.
  • temperatures of about 800 ° C. are required for this in the case of the Na-A zeolite.
  • the content of the builder component is a calculated theoretical numerical value, since under the conditions of spray drying aqueous slurries - in which the ingredients are naturally in a fully hydrated form - products are obtained which are more normal for the inorganic builder substances mentioned ⁇ as contained in a largely hydrated form.
  • the water content in the form of crystal water or similarly firmly bound water after customary spray drying is of the order of 20% by weight, based on zeolite.
  • the amounts of water specified in the context of the present invention of the powder component according to the invention and referred to as detergent additive, on the other hand, relate to water which can be expelled when heated to a temperature of 200.degree.
  • Surfactants of the sulfate type which are particularly suitable for the detergent additives according to the invention are the sulfuric acid monoesters of long-chain primary alcohols of natural and synthetic origin with 10 to 20 C atoms, that is, of fatty alcohols such as, for example, coconut fatty alcohols, Taigfett ⁇ alcohols, oleyl alcohol, or the Cio to C20-0x ° alcohols and those of secondary alcohols of this chain length.
  • the sulfuric acid monoesters of the aliphatic primary alcohols, secondary alcohols or alkylphenols ethoxylated with 1 to 6 mol of ethylene oxide come into consideration.
  • Sulfated fatty acid alkanolamides and sulfated fatty acid monoglycerides are also suitable.
  • the surfactants of the sulfonate type are primarily the alkylbenzenesulfonates with Cg to Ci5-alkyl groups, sulfosuccinic acid mono- and diesters with 6 to 22 C atoms in the alcohol parts and the esters of ⁇ -sulfofatty acids, for example the ⁇ -sulfonated methyl or ethyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.
  • alkane sulfonates which can be obtained from (2- to Ci8 ⁇ alkanes by sulfochlorination or sulfoxidation and subsequent hydrolysis or neutralization or by addition of bisulfite to olefins
  • olefin sulfonates ie mixtures of Alkene and hydroxyalkanesulfonates and disulfonates, such as are obtained, for example, from long-chain monoolefins with a terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products usually means as alkali salts, especially as sodium or potassium salts.
  • alkylbenzenesulfonates with linear Cg to C15 alkyl groups the fatty alcohol sulfates with 12 to 18 C atoms and mixtures of these synthetic anionic surfactants are particularly preferably used.
  • the detergent additives according to the invention can contain up to 10% by weight of soap, ie alkali metal salts of fatty acids.
  • the salts especially the sodium salts of CIOE to C fatty acids, are preferred. It has been found that the detergent additives have particularly good properties if the soap content is chosen as a function of the anionic surfactant component.
  • the detergent additives according to the invention can contain up to 5% by weight, in particular 1% by weight to 3% by weight, of soap if the anionic surfactant is of the sulfonate type, and contain up to 10 wt .-%, in particular 1 wt .-% to 8 wt .-% soap, if an additional or sole anionic surfactant of the sulfate type is present.
  • the other surfactants optionally present in the detergent additives according to the invention include nonionic surfactants in proportions of not more than 7.5% by weight, in particular 0.5% by weight to 4% by weight.
  • Suitable nonionic surfactants include alkyl polyglycosides with 10 to 22 carbon atoms in the alkyl part and the alkoxylates, in particular the ethoxylates and / or propoxylates of linear or branched chain alcohols with 10 to 22 carbon atoms, preferably 12 to 18 carbon atoms. Atoms.
  • the degree of alkoxylation of the alcohols is between 1 and 20, preferably between 3 and 10. They can be prepared in a known manner by reacting the corresponding alcohols with the corresponding alkylene oxides.
  • the derivatives of fatty alcohols are particularly suitable, although their branched chain isomers, in particular so-called oxo alcohols, can also be used to prepare alkoxylates which can be used. Accordingly, the ethoxylates of primary alcohols with linear dodecyl, tetradecyl, hexadecyl or octadecyl radicals and mixtures thereof are particularly useful. In addition, corresponding ethoxylation and / or propoxylation products of alkyl inines, vicinal diols and carboxylic acids which correspond to the alcohols mentioned with regard to the alkyl part, and of alkyl phenols having 5 to 12 carbon atoms in the alkyl radical, can be used.
  • Inorganic water-insoluble builder substances which are used in the detergent additives according to the invention in amounts of from 20% by weight to 75% by weight, preferably from 25% by weight to 70% by weight and in particular from 32% by weight to Containing 60% by weight are finely divided alkali alumosilicates and crystalline layered silicates.
  • the alkali aluminosilicates the crystalline aluminosilicates, in particular zeolite NaA and NaX, are preferred.
  • Suitable aluminosilicates in particular have no particles with a grain size above 30 ⁇ m and preferably consist of at least 80% by weight of particles with a size below 10 ⁇ m.
  • Their calcium binding capacity which can be determined according to the information in German patent DE 24 12837, is in the range from 100 to 200 mg CaO per gram.
  • the content of such zeolites, calculated as an anhydrous substance, is preferably 35% by weight to 45% by weight.
  • the detergent additive according to the invention can also crystalline alkali silicates with a layer structure, among them preferably sodium silicates, such as the so-called crystalline disilicates known from European patent applications EP 164514, EP 164552 and EP 293640, for example ß- or ⁇ ' -sodium disilicates, or the crystalline polysilicates with layer structure, for example of the magadiite type, known from European patent applications EP 150442 and EP 151 295. Crystalline layered silicates are preferably contained in the detergent additive according to the invention in amounts of 25% by weight to 70% by weight, in particular 35% by weight to 45% by weight.
  • combinations of, based on the total detergent additive, 35 wt.% To 55 wt.% Zeolite and 1 wt.% To 15 wt.% Crystalline layered silicate are used as builders.
  • a detergent additive according to the invention can additionally also contain up to 10% by weight amorphous or non-layered crystalline alkali silicate, for example of the water glass type.
  • such alkali silicate is present in amounts not exceeding 3% by weight, in particular from 0.1% by weight to 1.5% by weight.
  • a further embodiment of the detergent additive according to the invention preferably contains 5% by weight to 10% by weight of such alkali silicate.
  • alkali silicates mentioned in particular the sodium silicates
  • those with a molar ratio of alkali oxide to silicon dioxide of 1: 1.9 to 1:15, in particular 1: 2 to 1: 3.5 can be used, preferably those among the water glasses with a molar ratio of 1: 2 to 1: 3.2.
  • the powdery detergent additive can surprisingly contain relatively large amounts of inorganic salts containing water of crystallization if these are able to transition from the water of crystallization.
  • water-containing to the crystal water-free phase at relatively low temperatures that is below 45 ° C.
  • Salts with such a phase transition temperature in the range from 1 ° C. to 45 ° C. are preferably present in amounts of up to 50% by weight, in particular 1% by weight to 30% by weight.
  • Such salts include in particular sodium carbonate decahydrate and sodium sulfate decahydrate.
  • Other inorganic salts are preferably not contained in the detergent additives according to the invention.
  • Suitable organic builder substances which may be present are, in particular, those from the class of the polycarboxylic acids, preferably citric acid, and also polymeric acrylic acids, methacrylic acids, maleic acids and copolymers thereof, which may also contain small amounts of polymerizable substances without carboxylic acid functionality in copolymerized form.
  • the acids mentioned are usually used in the form of their alkali metal salts, in particular their sodium or potassium salts.
  • Such organic builder substances can be completely absent in the detergent additives according to the invention, but if desired they can also be present in amounts of preferably 1% by weight to 10% by weight, in particular 2% by weight to 8% by weight.
  • the detergent additive according to the invention can contain complexing agents for heavy metals.
  • Suitable complexing agents include aminopolycarboxylic acids, in particular nitrilotriacetic acid, ethylenediaminetetraacetic acid, polyphosphonic acids, in particular aminotri- (methylenephosphonic acid), ethylenediaminetetra- (methylenephosphonic acid) and l-hydroxyethane-l, l-diphosphonic acid and their alkali metal salts, in particular their sodium salts.
  • Such complexing agents are preferably present in amounts not exceeding 5% by weight, in particular from 0.1% by weight to 2% by weight, based on the total additive.
  • the detergent additives according to the invention can be used as further conventional ingredients of detergents or cleaning agents in small proportions of preferably 0.5% by weight to 3% by weight of optical brighteners and / or film-forming organic polymers, in particular carboxymethyl cellulose , Methyl cellulose and / or polyvinyl pyrrolidone.
  • the detergent additives according to the invention can be prepared in a manner known in principle by spray drying an aqueous suspension or slurrying their ingredients.
  • spray towers in the upper part of which the slurry is sprayed into fine droplets by means of pressure nozzles which move under the action of gravity into the lower part of the spray tower and are thereby called hot Drying gases come into contact, which are conducted in cocurrent or preferably in countercurrent to the particles to be dried.
  • the ingredients in the form of aqueous suspensions, slurries or solutions, as are customarily obtained in the course of the preparation of these ingredients.
  • the anionic surfactant component in particular an alkyl sulfate component and / or the builder component, in particular the finely divided zeolite, can be used as an aqueous solution or slurry.
  • the slurry to be sprayed at temperatures below 95 ° C., in particular 60 ° C.
  • the inlet temperatures in the range from 150 ° C. to 350 ° C., in particular from 200 ° C. to Have 250 ° C.
  • the powders produced in this way normally contain less than 5% of constituents with particle sizes of less than 0.1 mm, and any higher dust content that may occur can be removed by simple sieving and returned to the production process.
  • a Detergent additive thus produced has a bulk density of 250 grams per liter to 750 grams per liter.
  • the powdery detergent additives according to the invention are very suitable as carriers for liquid or liquefiable conventional detergent ingredients, for example fragrances, dyes, foam regulators, enzymes or nonionic surfactants, without losing their advantageous properties.
  • nonionic surfactant in amounts of up to 10% by weight, in particular from 0.5% by weight to 6% by weight, based on the detergent additive then formed, it is possible to use nonionic surfactant in a manner known in principle to spray additively on the surface of the detergent according to the invention.
  • the amounts of surfactant mentioned are to be understood in addition to the nonionic surfactant that may have already been contained in the spray-dried detergent additive.
  • the detergent additives according to the invention are preferably used for the production of particulate detergents, bleaches or cleaning agents.
  • the finished detergents obtained in this way are also significantly improved in their rinsing-in behavior and in their flowability, even after storage, compared to those detergents which do not contain the detergent additive according to the invention even with an otherwise comparable composition.
  • the detergent additive according to the invention is preferably further processed by simple addition to other powdery or customizable detergent, bleaching or bleaching constituents to produce such agents.
  • the other detergent, cleaning agent or bleach constituents which can be made up in powder form and which, when mixed or by further processing with the detergent additive according to the invention, result in a finished agent of this type, can be inorganic and in particular organic raw materials such as bleaching agent compounds and in particular ene ⁇ zymgranulate or -pri11s, particle-shaped or particle-shaped defoamer active ingredients such as silicones and paraffins, optical brighteners and / or bleach activators such as granulated tetraacetylethylenediamine.
  • organic raw materials such as bleaching agent compounds and in particular ene ⁇ zymgranulate or -pri11s, particle-shaped or particle-shaped defoamer active ingredients such as silicones and paraffins, optical brighteners and / or bleach activators such as granulated tetraacetylethylenediamine.
  • Such powdered components can be prepared by known methods, in the case of bleaching compounds, for example, as in German patent DE 24 18263, in the case of enzyme granules, for example, by the methods described in European patent EP 168526 or international patent application WO 92/11347 , in the case of the foam regulator particles, for example, by the processes described in the international patent applications WO 92/12306 or WO 92/20770 and in the case of the bleach activator granules, for example as described in the European patent EP 037 026 or the German patent DD 255884.
  • detergents produced using the detergent additive according to the invention contain 10% by weight to 30% by weight of a particulate oxidizing agent component, 2% by weight to 10% by weight of a particulate bleach activator, 0.5% by weight % to 5% by weight of a particulate foam regulator, 0.1% to 2% by weight of protease, amylase, lipase and / or cellulase granules and the detergent additive according to the invention to 100% by weight .
  • the powder detergent additive is used for the production of particulate bleaching agents, in particular for use in textile washing.
  • the detergent additive according to the invention is mixed with a particulate oxidizing agent component.
  • oxidizing agent components alkali perborate, which may be in the form of a mono- or tetrahydrate, and / or alkali percarbonate, which is preferably the sole constituent of this component, are preferred, although organic oxidizing agents which can be prepared in powder or particulate form are also preferred.
  • middle ! for example peracids or their salts, can be used.
  • Sodium percarbonate is particularly suitable, which, due to the production process, may contain small amounts, usually below 5% by weight, based on alkali percarbonate, of borate and / or phosphate and, if appropriate, further salts.
  • Such bleaching agents preferably contain 10% by weight to 70% by weight, in particular 30% by weight to 70% by weight, of a detergent additive according to the invention, 20% by weight to 70% by weight, in particular 25% by weight up to 40% by weight of oxidizing agent component, up to 2% by weight, in particular 0.1% by weight to 1.5% by weight, of particulate compounded enzyme, in particular protease, and in particular in the case of the above-mentioned organic oxidizing agents contain up to 20% by weight, in particular 2% by weight to 15% by weight, of a separate particulate bleach activator component.
  • any pulverulent or particulate ready-to-use compound that is organic peracid under perhydrolysis conditions is suitable as the bleach activator component.
  • These include in particular N- or O-acyl compounds, for example multiple acylated alkylenediamines, in particular tetraacetylethylenediamine, acylated glycolurils, in particular tetraacetylglycoluril, N-acylated hydantoins, hydrazides, triazoles, triazines, urazoles, diketopiperazines, sulfuryl amides and sulfuryl amides and sulfuryl amides in addition, carboxylic acid anhydrides, in particular phthalic anhydride, carboxylic acid esters, in particular sodium isononanoyl phenolsulfonate, and acylated sugar derivatives, in particular pentaacetyl glucose.
  • N- or O-acyl compounds for example multiple acylated alkylenedi
  • the bleach activator can be coated with coating substances in a known manner or, if appropriate using granulating aids, it can have been granulated and, if desired, contain further additives, for example dye.
  • granules Preferably, such granules contain over 90% by weight, in particular from 94% by weight to 99% by weight, of bleach activator.
  • a bleach activator is preferably used which forms peracetic acid under the washing conditions.
  • TAED tetraacetylethylenediamine
  • DADHT 5-diacetyl-2,4-dioxohexa- hydro-l, 3,5-triazine
  • particulate detergents, cleaning agents or bleaches using a detergent additive according to the invention does not require any great technical effort.
  • Simple mixing apparatuses such as paddle or drum mixers, in which the powdery components can be mixed, are usually suitable.
  • the use of automatically operating belt scales in combination with free-fall mixers is also possible and is preferred for continuous production of the agents according to the invention.
  • the mixture can be carried out with simultaneous spraying of colorants and / or fragrances or liquid enzyme preparations.
  • the pourability was determined under the same conditions with the aid of an automatic dispensing device provided with a balance, in which the package previously opened at the intended location was attached to a vertical disc and in 20 ° steps (starting at 80 ° to one Inclination of 180 °) until no more powder falls on the scales below.
  • Table 2 shows the amounts that can be poured out under these conditions (in% by weight of the total filling amount, average of 3 determinations in each case) after storage periods of 4 and 8 weeks.
  • the bleaching agent produced using the detergent additive AI according to the invention was by far the best. While the comparative agent produced using the extremely low-water but zeolite-free additive VI was still very easy to pour out after a storage period of 4 weeks, it clumped almost completely after 8 weeks of storage. A comparison agent produced using a water-rich, zeolite-containing additive V2 already showed an unacceptable pouring behavior after 4 weeks of storage.
  • a values are very good in practice, B values are usually considered to be just satisfactory, and C values indicate inadequate washing-in behavior.
  • the tested agents showed the following wash-in values:

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  • Engineering & Computer Science (AREA)
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Abstract

L'invention vise à améliorer l'aptitude à l'écoulement et le pouvoir de pénétration de détergents, de décolorants ou de nettoyants pulvérulents composés de plusieurs constituants pulvérulents. C'est possible grâce à l'utilisation d'un additif se présentant sous forme d'un produit pulvérulent, coulant, contenant des tensioactifs anioniques et des adjuvants, obtenu par séchage d'une suspension aqueuse coulante des substances qu'il contient. Cet additif contient entre 2 et 25 % en poids de tensioactif anionique synthétique de type sulfate et/ou sulfonate; jusqu'à 5 % en poids de savon si le tensioactif anionique est de type sulfonate et jusqu'à 10 % en poids de savon si un tensioactif anionique supplémentaire ou unique de type sulfate est présent; pas plus de 7,5 % en poids de tensioactif non ionique; jusqu'à 10 % en poids de silicate alcalin amorphe ou cristallin non lamellaire; jusqu'à 50 % en poids de sel inorganique contenant de l'eau de cristallisation, qui libère de l'eau de cristallisation à des températures comprises entre 1 et 45 °C; entre 20 et 75 % en poids d'adjuvants inorganiques insolubles dans l'eau, qui consistent en silicate d'aluminium alcalin et/ou en silicate lamellaire alcalin cristallin; et au total, moins de 7 % en poids d'eau qui peut être chassée en portant la température à 200 °C.
PCT/EP1994/000344 1993-02-15 1994-02-07 Additif pour detergent, contenant des tensioactifs et des adjuvants WO1994018294A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94907512A EP0683811A1 (fr) 1993-02-15 1994-02-07 Additif pour detergent, contenant des tensioactifs et des adjuvants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4304474.3 1993-02-15
DE19934304474 DE4304474A1 (de) 1993-02-15 1993-02-15 Tensid- und builderhaltiges Waschmitteladditiv

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WO1994018294A1 true WO1994018294A1 (fr) 1994-08-18

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DE (1) DE4304474A1 (fr)
WO (1) WO1994018294A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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EP0327963A2 (fr) * 1988-02-10 1989-08-16 Henkel Kommanditgesellschaft auf Aktien Procédé pour augmenter la densité de détergents séchés par vaporisation
EP0337217A2 (fr) * 1988-04-15 1989-10-18 Hoechst Aktiengesellschaft Détergent contenant un système de blanchiment stabilisé stockable
EP0344629A1 (fr) * 1988-06-03 1989-12-06 Henkel Kommanditgesellschaft auf Aktien Composition adsorbente granulaire avec une capacité de dégagement ameliorée
EP0405122A2 (fr) * 1989-06-24 1991-01-02 Hoechst Aktiengesellschaft Agent de renforcement pour détergent de matière textile
WO1992003525A1 (fr) * 1990-08-17 1992-03-05 The Procter & Gamble Company Compositions de detergents
WO1992015663A1 (fr) * 1991-03-05 1992-09-17 Henkel Kommanditgesellschaft Auf Aktien Detergents
EP0533392A2 (fr) * 1991-09-18 1993-03-24 Unilever Plc Compositions détergentes

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Publication number Priority date Publication date Assignee Title
WO1995006706A1 (fr) * 1993-09-01 1995-03-09 Henkel Kommanditgesellschaft Auf Aktien Produit de lavage ou de nettoyage seche par pulverisation, ou composant dudit produit

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DE4304474A1 (de) 1994-08-18
EP0683811A1 (fr) 1995-11-29

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