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WO2018172514A1 - Composition solide de renforçateur de parfum - Google Patents

Composition solide de renforçateur de parfum Download PDF

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Publication number
WO2018172514A1
WO2018172514A1 PCT/EP2018/057419 EP2018057419W WO2018172514A1 WO 2018172514 A1 WO2018172514 A1 WO 2018172514A1 EP 2018057419 W EP2018057419 W EP 2018057419W WO 2018172514 A1 WO2018172514 A1 WO 2018172514A1
Authority
WO
WIPO (PCT)
Prior art keywords
solid
scent booster
oil
booster composition
encapsulated
Prior art date
Application number
PCT/EP2018/057419
Other languages
English (en)
Inventor
Arnaud Struillou
Theodore Anastasiou
Douglas MINCK
Valery Normand
Original Assignee
Firmenich Sa
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 Firmenich Sa filed Critical Firmenich Sa
Priority to MX2019009936A priority Critical patent/MX2019009936A/es
Priority to CN201880019693.5A priority patent/CN110431221B/zh
Priority to US16/496,884 priority patent/US11034920B2/en
Priority to EP18712222.1A priority patent/EP3601516B1/fr
Priority to SG11201906415Q priority patent/SG11201906415QA/en
Priority to JP2019551623A priority patent/JP7038730B2/ja
Priority to ES18712222T priority patent/ES2986583T3/es
Publication of WO2018172514A1 publication Critical patent/WO2018172514A1/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
    • C11D3/50—Perfumes
    • C11D3/502—Protected perfumes
    • C11D3/505—Protected perfumes encapsulated or adsorbed on a carrier, e.g. zeolite or clay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/16—Interfacial polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/20—After-treatment of capsule walls, e.g. hardening
    • B01J13/22—Coating
    • 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
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads

Definitions

  • the present invention relates to the field of solid scent boosters. More particularly, the present invention describes a composition comprising a solid carrier and a granulated powder comprising particles having a low perfume loading, i.e granulated powder comprising up to 30% by weight of encapsulated oil.
  • a laundry composition comprising the solid scent booster is also part of the invention.
  • the increasing consumer demand for an intense and strong perfume scent delivered on to their laundry is driving the development of scent booster products.
  • the fragrances are incorporated as a free oil and/or encapsulated in microcapsules in order to deliver a pleasant odor to the fabrics, to the surfaces or to the skin.
  • One main advantage of encapsulated fragrance is that fragrance performance and the long-lasting of the olfactive perception during and after application, (e.g. after rinsing and drying of the skin or the fabrics) is enhanced.
  • perfume microcapsules when perfume microcapsules are used, other properties must be taken into account to provide a consumer product with a good quality. Indeed, when incorporated into a consumer product base, perfume microcapsules are often in an "aggressive" environment and must therefore exhibit a good stability with low perfume leakage. Furthermore, depending on the type of consumer product, microcapsules can be subjected to high mechanical stresses during the mixing phase with the base and have therefore to exhibit good mechanical properties.
  • Laundry scent boosters are compositions providing a strong scent to the laundry and which can be used during the washing cycle in addition to common liquid or solid detergents as well as rinse added fabric softeners.
  • a laundry scent booster often comprises solid particles on which is absorbed a free fragrance and act therefore as a fragrance carrier.
  • WO2016/018271 discloses a solid scent booster having porous particles that are entrained with a fragrance oil. This document teaches that the fragrance oil can be encapsulated. However, when microcapsules are incorporated as a slurry in a solid scent booster composition, this could potentially lead to a high capsule breakage during the processing as well a poor stability upon time.
  • microcapsules with optionally free perfume can be dried resulting in a matrix structure.
  • a solid scent booster comprising a granulated powder having not only good performance in terms of stability and olfactive performance but that can also survive a manufacturing process requiring high shearing.
  • the solid scent booster composition of the invention solves this problem as it comprises granulated powder containing particles made of a polymeric matrix and encapsulated oil according to optimized relative proportions that prevents not only particle abrasion during the manufacturing process but also that prevents particle degradation during shelf life when they are in prolonged contact with the solid carrier.
  • a first object of the invention is a solid scent booster composition comprising:
  • granulated powder comprising particles made of:
  • an oil phase comprising a perfume dispersed in said polymer matrix, said oil being at least partly encapsulated in microcapsules,
  • a second object of the invention is a laundry composition comprising the scent booster composition as defined above and a laundry additive selected from the group consisting of a detergent, a softener, a rinse-aid, a water-softening or a bleach-booster composition.
  • a third object is the use of the solid scent booster composition as defined above during the laundry washing to deliver fragrance to the fabrics.
  • Figures 1 and 2 represent the intensity rating of a scent booster composition comprising the granulated powder defined in the invention (fresh, after 2 weeks at 37°C and after 4 weeks at 37°C).
  • the present invention has now determined a way to improve not only the chemical resistance of the granulated powder when incorporated in a solid scent booster composition but also the mechanical resistance of the granulated powder when subjected to high shearing conditions during the manufacturing process.
  • a first object of the invention is a solid scent booster composition
  • a solid scent booster composition comprising:
  • granulated powder comprising particles made of:
  • an oil phase comprising a perfume dispersed in said polymer matrix, said oil being at least partly encapsulated in microcapsules,
  • granulated powder comprises up to 30% by weight of encapsulated oil based on the total weight of the powder.
  • solid carrier can be any particles, preferably porous particles suitable to vehicle the fragrance on fabrics.
  • Solid carrier may be any water soluble acid, organic or inorganic, and salts and conjugate bases thereof, including alkali metals, alkaline earth metals, and transition metals and complexes thereof.
  • solid carrier is chosen in the group consisting of urea, sodium chloride, sodium sulphate, sodium acetate, zeolite, sodium carbonate, sodium bicarbonate, clay, talc, calcium carbonate, magnesium sulfate, gypsum, calcium sulfate, magnesium oxide, zinc oxide, titanium dioxide, calcium chloride, potassium chloride, magnesium chloride, zinc chloride, saccharides such as sucrose, mono-, di-, and polysaccharides and derivatives such as starch, cellulose, methyl cellulose, ethyl cellulose, propyl cellulose, polyols/sugar alcohols such as sorbitol, maltitol, xylitol, erythritol, and isomalt, PEG, PVP, citric acid or any water soluble solid acid, fatty alcohols or fatty acids and mixtures thereof.
  • urea sodium chloride, sodium sulphate, sodium acetate, zeolite, sodium carbonate, sodium bi
  • the solid carrier is sodium chloride and/or urea.
  • the solid carrier is sodium chloride.
  • the solid carrier is a mixture of clay and PEG, preferably the mixture comprises 0-30% clay and 20-80% PEG, preferably between 1-30% clay and 20-80% PEG, based to the total weight of the carrier.
  • the solid carrier is a mixture of sodium acetate and PEG, preferably the mixture comprises 0-80% sodium acetate and 0-50% PEG, preferably 1-80% sodium acetate and 1-50% PEG.
  • PEG has preferably a molecular weight greater than lOOOg/mol, preferably between
  • the solid carrier is particles having preferably a mean size comprised between 10 and 2000 microns, preferably between 40 and 1000 microns, more preferably between 50 and 600 microns.
  • the composition of the invention comprises from 10 to 99.5% by weight, preferably 50 to 99.5% by weight, more preferably from 75 to 99.5% by weight of the solid carrier based on the total weight of the composition.
  • solid carrier comprises a perfume adsorbed onto or absorbed into said carrier.
  • free perfume can be added in an amount comprised between 0.1 and 8%, preferably between 0.1 and 4 by weight based on the total weight of the composition.
  • Granulated powder comprising particles
  • the granulated powder comprises particles made of:
  • an oil phase comprising a perfume dispersed in said polymer matrix, said oil being at least partly encapsulated in microcapsules.
  • any water soluble polymer can be used for the purpose of the invention.
  • the water soluble polymer has emulsifying properties.
  • a "water soluble polymer” is intended for the purpose of the present invention as encompassing any polymer which forms a one-phase solution in water. Preferably, it forms a one phase solution when dissolved in water at concentrations as high as 20% by weight, more preferably even as high as 50% by weight. Most preferably it forms a one phase solution when dissolved in water at any concentration.
  • water soluble polymer examples include starch, modified starch, maltodextrins, polysccharides, carbohydrates, chitosan, gum arabic, polyethylene glycol, polyvinyl pyrrolidone, polyvinyl alcohol, acrylamides, acrylates, polyacrylic acid and related, maleic anhydride copolymers, amine-functional polymers, vinyl ethers, styrenes, polystyrenesulfonates, vinyl acids, ethylene glycol-propylene glycol block copolymers, and mixtures thereof.
  • the water soluble polymer comprises Maltodextrin having a Dextrose Equivalent (DE) comprised between 3 and 20, preferably between 10 and 18.
  • DE Dextrose Equivalent
  • the water soluble polymer comprises Maltodextrin 18DE and/or Maltodextrin 1 ODE.
  • the water soluble polymer comprises Maltodextrin 10DE.
  • granulated powder comprises at least 55% by weight of water soluble polymer based on the total weight of the powder.
  • granulated powder comprises between 55 and
  • the weight ratio between the water soluble polymer and encapsulated oil within the granulated powder is comprised between 2 and 20, preferably between 3.5 and 10.
  • Oil phase comprising a perfume
  • the oil phase comprises a perfume.
  • the oil phase comprises a mixture of a perfume with another ingredient selected from the group consisting of nutraceuticals, cosmetics, insect control agents and biocide actives.
  • the hydrophobic active ingredient consists of a perfume.
  • perfume oil (or also “perfume”) what is meant here is an ingredient or composition that is a liquid at about 20°C.
  • said perfume oil can be a perfuming ingredient alone or a mixture of ingredients in the form of a perfuming composition.
  • a perfuming ingredient it is meant here a compound, which is used for the primary purpose of conferring or modulating an odour.
  • such an ingredient, to be considered as being a perfuming one must be recognized by a person skilled in the art as being able to at least impart or modify in a positive or pleasant way the odor of a composition, and not just as having an odor.
  • the perfume oil also includes the combination of perfuming ingredients with substances which together improve, enhance or modify the delivery of the perfuming ingredients, such as perfume precursors, emulsions or dispersions, as well as combinations which impart an additional benefit beyond that of modifying or imparting an odor, such as long-lasting, blooming, malodour counteraction, antimicrobial effect, microbial stability or insect control.
  • perfuming ingredients such as perfume precursors, emulsions or dispersions, as well as combinations which impart an additional benefit beyond that of modifying or imparting an odor, such as long-lasting, blooming, malodour counteraction, antimicrobial effect, microbial stability or insect control.
  • perfuming ingredients present in the oil phase do not warrant a more detailed description here, which in any case would not be exhaustive, the skilled person being able to select them on the basis of its general knowledge and according to intended use or application and the desired organoleptic effect.
  • these perfuming ingredients belong to chemical classes as varied as alcohols, aldehydes, ketones, esters, ethers, acetates, nitriles, terpenoids, nitrogenous or sulphurous heterocyclic compounds and essential oils, and said perfuming co-ingredients can be of natural or synthetic origin. Many of these co-ingredients are in any case listed in reference texts such as the book by S.
  • the perfuming ingredients may be dissolved in a solvent of current use in the perfume industry.
  • the solvent is preferably not an alcohol.
  • solvents are diethyl phthalate, isopropyl myristate, Abalyn (rosin resins, available from Eastman), benzyl benzoate, ethyl citrate, limonene or other terpenes, or isoparaffins.
  • the solvent is very hydrophobic and highly sterically hindered, like for example Abalyn or benzyl benzoate.
  • the oil phase is dispersed within the water soluble polymer matrix and has at least one part that is encapsulated in at least one microcapsule.
  • encapsulated oiF refers to oil that is encapsulated in a microcapsule.
  • non- encapsulated oil refers to oil that is simply entrapped (or dispersed) within the polymer matrix but that is not encapsulated in a microcapsule.
  • the shell can be made of a material selected from the group consisting of polyurea, polyurethane, polyamide, polyacrylate, polysiloxane, polycarbonate, polysulfonamide, urea formaldehyde, melamine formaldehyde resin, melamine formaldehyde resin cross-linked with polyisocyanate or aromatic polyols, melamine urea resin, melamine glyoxal resin, gelatin/ gum arabic shell wall, and mixtures thereof.
  • the shell of the microcapsule is based on melamine formaldehyde resin or melamine formaldehyde resin cross-linked with at least one polyisocyanate or aromatic polyols.
  • the shell can also be a hybrid, namely organic-inorganic such as a hybrid shell composed of at least two types of inorganic particles that are cross-linked, or yet a shell resulting from the hydrolysis and condensation reaction of a polyalkoxysilane macro- monomeric composition.
  • organic-inorganic such as a hybrid shell composed of at least two types of inorganic particles that are cross-linked, or yet a shell resulting from the hydrolysis and condensation reaction of a polyalkoxysilane macro- monomeric composition.
  • the shell comprises an aminoplast copolymer, such as melamine-formaldehyde or urea-formaldehyde or cross-linked melamine formaldehyde or melamine glyoxal.
  • aminoplast copolymer such as melamine-formaldehyde or urea-formaldehyde or cross-linked melamine formaldehyde or melamine glyoxal.
  • the core-shell microcapsules are cross-linked melamine formaldehyde microcapsules obtainable by a process comprising the steps of:
  • the shell is polyurea-based made from, for example but not limited to isocyanate-based monomers and amine-containing crosslinkers such as guanidine carbonate and/or guanazole.
  • Preferred polyurea-based microcapsules comprise a polyurea wall which is the reaction product of the polymerisation between at least one polyisocyanate comprising at least two isocyanate functional groups and at least one reactant selected from the group consisting of an amine (for example a water soluble guanidine salt and guanidine); a colloidal stabilizer or emulsifier; and an encapsulated perfume.
  • an amine for example a water soluble guanidine salt and guanidine
  • colloidal stabilizer or emulsifier for example a colloidal stabilizer or emulsifier
  • an encapsulated perfume for example a water soluble guanidine salt and guanidine
  • an amine for example a water soluble guanidine salt and guanidine
  • the shell is polyurethane-based made from, for example but not limited to polyisocyanate and polyols, polyamide, polyester, etc.
  • the colloidal stabilizer includes an aqueous solution of between 0.1% and 0.4% of polyvinyl alcohol, between 0.6% and 1% of a cationic copolymer of vinylpyrrolidone and of a quaternized vinylimidazole (all percentages being defined by weight relative to the total weight of the colloidal stabilizer).
  • the emulsifier is an anionic or amphiphilic biopolymer preferably chosen from the group consisting of polyacrylate (and copolymers especially with acrylamide), gum arabic, soy protein, gelatin, sodium caseinate and mixtures thereof.
  • the polyisocyanate is an aromatic polyisocyanate, preferably comprising a phenyl, a toluyl, a xylyl, a naphthyl or a diphenyl moiety.
  • Preferred aromatic polyisocyanates are biurets and polyisocyanurates, more preferably a polyisocyanurate of toluene diisocyanate (commercially available from Bayer under the tradename Desmodur ® RC), a trimethylol propane-adduct of toluene diisocyanate (commercially available from Bayer under the tradename Desmodur L75), a trimethylol propane-adduct of xylylene diisocyanate (commercially available from Mitsui Chemicals under the tradename Takenate D- 11 ON).
  • the polyisocyanate is a trimethylol propane- adduct of xylylene diisocyanate (commercially available from Mitsui Chemicals under the tradename Takenate D- 11 ON).
  • said microcapsule wall material may comprise any suitable resin and especially including melamine, glyoxal, polyurea, polyurethane, polyamide, polyester, etc.
  • suitable resins include the reaction product of an aldehyde and an amine
  • suitable aldehydes include, formaldehyde and glyoxal.
  • suitable amines include melamine, urea, benzoguanamine, glycoluril, and mixtures thereof.
  • Suitable melamines include, methylol melamine, methylated methylol melamine, imino melamine and mixtures thereof.
  • Suitable ureas include, dimethylol urea, methylated dimethylol urea, urea- resorcinol, and mixtures thereof.
  • Suitable materials for making may be obtained from one or more of the following companies Solutia Inc. (St Louis, Missouri U.S.A.), Cytec Industries (West Paterson, New Jersey U.S.A.), Sigma-Aldrich (St. Louis, Missouri U.S.A.).
  • the core-shell microcapsule is a formaldehyde-free capsule.
  • a typical process for the preparation of aminoplast formaldehyde-free microcapsules slurry comprises the steps of:
  • an aldehyde component in the form of a mixture of glyoxal, a C 4 -6 2,2-dialkoxy- ethanal and optionally a glyoxalate, said mixture having a molar ratio glyoxal/C 4 - 6 2,2-dialkoxy-ethanal comprised between 1/1 and 10/1 ; and
  • iii at least an oligomeric composition as obtained in step 1; iv. at least a cross-linker selected amongst
  • n stands for 2 or 3 and 1 represents a C2-C6 group optionally comprising from 2 to 6 nitrogen and/or oxygen atoms;
  • the shell of the microcapsule is polyurea- or polyurethane-based.
  • processes for the preparation of polyurea- and polyureathane-based microcapsule slurry are for instance described in WO2007/004166, EP 2300146, EP2579976 the contents of which is also included by reference.
  • a process for the preparation of polyurea- or polyurethane-based microcapsule slurry include the following steps:
  • the internal core of the capsule is only made of the core oil composed of a perfume oil.
  • the particles defined in the present invention can contain microcapsules which can vary by the core perfume oil inside them and/or by the wall (different chemistries or same chemistries but different process parameters like cross-linking temperature or duration).
  • the microcapsules have an outer coating selected from the group consisting of a non-ionic polysaccharide, a cationic polymer and mixtures thereof.
  • Such coating will help drive capsule deposition and retention on substrate during the wash process so that a significant part of the capsules which have not been broken in the wash phase / upon lathering would transfer to the substrate (skin, hair fabrics) and be available for perfume release when the capsules are broken upon rubbing after drying.
  • Non-ionic polysaccharide polymers are well known to a person skilled in the art.
  • Preferred non-ionic polysaccharides are selected from the group consisting of locust bean gum, xyloglucan, guar gum, hydroxypropyl guar, hydroxypropyl cellulose and hydroxypropyl methyl cellulose.
  • Cationic polymers are also well known to a person skilled in the art.
  • Preferred cationic polymers have cationic charge densities of at least 0.5 meq/g, more preferably at least about 1.5 meq/g, but also preferably less than about 7 meq/g, more preferably less than about 6.2 meq/g.
  • the cationic charge density of the cationic polymers may be determined by the Kjeldahl method as described in the US Pharmacopoeia under chemical tests for Nitrogen determination.
  • the preferred cationic polymers are chosen from those that contain units comprising primary, secondary, tertiary and/or quaternary amine groups that can either form part of the main polymer chain or can be borne by a side substituent directly connected thereto.
  • the weight average (Mw) molecular weight of the cationic polymer is preferably between 10,000 and 2M Dalton, more preferably between 50,000 and 3.5M Dalton.
  • copolymers shall be selected from the group consisting of polyquaternium-5, polyquaternium-6, polyquaternium-7, polyquaterniumlO, polyquaternium-11, polyquaternium-16, polyquaternium-22, polyquaternium-28, polyquaternium-43, polyquaternium-44, polyquaternium-46, cassia hydroxypropyltrimonium chloride, guar hydroxypropyltrimonium chloride or polygalactomannan 2-hydroxypropyltrimethylammonium chloride ether, starch hydroxypropyltrimonium chloride and cellulose hydroxypropyltrimonium chloride
  • Salcare ® SC60 cationic copolymer of acrylamidopropyltrimonium chloride and acrylamide, origin: BASF
  • Luviquat® such as the PQ UN, FC 550 or Style (polyquaternium-11 to 68 or quaternized copolymers of vinylpyrrolidone origin: BASF), or also the Jaguar® (C13S or C17, origin Rhodia).
  • Granulated powder defined in the present invention comprises up to 30%, preferably up to 25%, more preferably up to 20% by weight of encapsulated oil based on the total weight of the powder leading robust particles having a large amount of water soluble polymer matrix.
  • granulated powder comprises between 3 and 30%, preferably between 5 and 25%, more preferably between 5 and 20% by weight of encapsulated oil based on the total weight of the powder.
  • particles can be used in a cost-effective way as only a low dosage of such particles is needed thanks to limited breakage upon industrial processing and better stability upon aging of the scent booster composition.
  • the present invention provides a solid scent booster that is efficient and that can survive a manufacturing process requiring high-shearing.
  • the totality of the oil phase comprised in the granulated powder is encapsulated.
  • the oil phase comprises at least one part that is not encapsulated.
  • non-encapsulated oil it should be understood that the oil phase is not encapsulated in a microcapsule but is simply entrapped within the water soluble polymer matrix.
  • granulated powder comprises up to 45%, preferably up to 35% by weight of the total amount of the oil phase based on the total weight of the powder.
  • granulated powder comprises between 3 and 45%, preferably between 5 and 35% by weight of the oil phase based on the total weight of the powder.
  • granulated powder comprises between 0.1 and 40%, preferably between 10 and 30% by weight of non-encapsulated oil based on the total weight of the powder.
  • the laundry scent booster composition of the invention may comprise one or more optional ingredients.
  • Optional ingredients include those well-known in the art for use in solid scent booster composition such as dyes, anti-caking agents, filler, humectant, corrosion inhibitors, silicone, anti-redeposition polymers, colour-care polymers, optical brighteners.
  • dyes such as dyes, anti-caking agents, filler, humectant, corrosion inhibitors, silicone, anti-redeposition polymers, colour-care polymers, optical brighteners.
  • the composition may comprises from about 0.001% to about 0.5 %, preferably from about 0.01% to about 0.01%, of dye(s) by weight of the composition.
  • Dye(s) used for the granulated powder and for the solid particles can be the same or different.
  • the scent booster composition comprises a binder to hold the granulated powder and the solid carrier together during the manufacturing process.
  • binder As non-limiting examples of binder, one may cite liquid polyethylene, polypropylene glycol, liquid nonionic surfactants, liquid silicone oil and mixtures thereof.
  • the scent booster composition comprises from 0.01 to 10%, preferably from 0.1 to 5% of binder by weight of the composition.
  • the solid scent booster is free of malodor-absorbing compounds such as cyclodextrins.
  • the composition comprises:
  • composition described above further comprises: from 0 to 95% by weight of sodium bicarbonate, and/or
  • the composition comprises spray-dried particles. Therefore, according to an embodiment, the composition contains granulated powder comprising spray-dried particles obtained by a process comprising the following steps:
  • step (iii) Mixing the water phase of step (i) or the emulsion of step (ii) with a microcapsule slurry comprising at least a microcapsule having an oil-based core comprising a perfume and a polymeric shell;
  • step (iv) Spray-drying the slurry of step (iii) to obtain a spray-dried particle
  • the granulated powder comprises up to 30% by weight of encapsulated oil based on the total weight of the powder.
  • An anticaking agent like silica can be added during step (iii) and/or step (iv) and/or after step (iv) of the process described above.
  • drying method such as the extrusion, the fluidized bed, or even a drying at room temperature using materials (carrier, desiccant) that meet specific criteria.
  • Another object of the invention is a process for manufacturing the solid scent booster composition defined above, said process comprising the step consisting of:
  • solid carrier with granulated powder as defined above, wherein the solid carrier is optionally previously mixed with a free perfume
  • scent booster composition of the invention provides strong scent to the laundry, it can be used with other laundry additives such as detergents or softeners.
  • another object of the invention is a laundry composition
  • a laundry additive selected from the group consisting of a detergent, a softener, a rinse-aid, a water-softening or a bleach-booster composition.
  • Another object of the present invention is the use of the scent booster composition during the laundering to provide fragrance to fabrics.
  • microcapsules 1 Synthesis of the melamine- formaldehyde microcapsules containing a perfume oil (microcapsules 1)
  • Table 1 Composition of slurry of core-shell microcapsules 1
  • copolymer 2 Melamine-formaldehyde
  • perfume oil 5 a) See table la) (perfume A) / see table lb) (perfume B)
  • the oil phase was prepared by admixing a polyisocyanate (trimethylol propane adduct of xylylene diisocyanate, Takenate ® D-110N, origin: Mitsui Chemicals) with a core oil composed of a perfume oil (see table la) or lb) above).
  • the oil phase consisted of 2% Takenate ® D-110N and 98% of core oil. After encapsulation and use of the Takenate D-110N to cross-link the melamine-formaldehyde wall, the residual level of unreacted polyisocyanate in the core oil was very low and therefore the internal core of the capsule was only made of the core oil composed of a perfume oil.
  • the acrylamide and acrylic acid copolymer and the blend of the two melamine-formaldehyde resins were dissolved in water to form the water phase.
  • the perfume premix oil was added into this solution and the pH was regulated to 5 with acetic acid.
  • the temperature was raised to 90°C for 2 hours to allow the curing of the capsules.
  • capsules were formed, cross-linked and stable.
  • a 3% Salcare SC60 (acrylamidopropyltrimonium chloride / acrylamide copolymer ) solution in water was then added into the mixture at 80°C and was allowed to react for 2 hours at 80°C.
  • Emulsions A-E having the following ingredients were prepared:
  • Table 2 Composition of Emulsions A-E and composition of granulated powder A-E after spray-drying
  • Citric Acid 0% 0% 0% 0% 0% 1%
  • Components for the polymeric matrix (Maltodextrin and capsul , or capsulTM , citric acid and tripotassium citrate) were added in water at 45-50°C until complete dissolution.
  • emulsion E free perfume C was added to the aqueous phase. Microcapsules slurry was added to the obtained mixture. Then, the resulting mixture was then mixed gently at 25°C (room temperature).
  • Granulated powder A-E were prepared by spray-drying Emulsion A-E using a Sodeva Spray Dryer (Origin France), with an air inlet temperature set to 215°C and a throughput set to 500 ml per hour. The air outlet temperature was of 105°C. The emulsion before atomization was at ambient temperature.
  • Particles F were obtained as described below:
  • sucrose non-emulsifying carrier
  • the blend was sifted through 2 sieves of mesh size 250/1250 ⁇ .
  • Solid scent booster compositions comprising the granulated powder of the invention The following compositions are prepared. Table 4: Salt-based solid scent booster compositions
  • Table 7 Particles breakage and stability measurements for a solid scent booster comprising granulated powder A-D
  • a calibration point is created by mixing an amount of fragrance oil corresponding to the fragrance load in the granulated powder (O.lg, 0.2g, 0.3g, 0.45g) in a vial with 5ml iso-octane/ether (9: 1). (approximates 100% breakage/leakage) •
  • the unencapsulated oil (resulting from breakage/leakage) is isolated by dissolving l.OOg of granulated powder in 5ml of water and washing the aqueous phase with 5 ml iso-octane/ether (9: 1) . Agitate for 20 minutes in Turbula, then allow to settle (will take about another 20-30 minutes).
  • % breakage (% unencapsulated oil/%total oil)* 100. As shown in Table 7, the breakage during the manufacturing process is significantly lower and the stability (12 weeks-37°C) is significantly higher when the fragrance loading is low in the granulated powder.
  • a sensory panel was performed with 14 panelists which were asked to rate the perfume intensity on dry towels before and after rubbing by using a scale between 1 (non-perceptible perfume) and 9 (very strong perfume intensity).
  • Figures 1 and 2 show that excellent olfactive performance on fresh after mixing into the salt scent booster composition can be obtained when said composition comprises granulated powder according to the invention having a perfume loading of 20%.
  • a sensory panel was performed with 14 panelists which were asked to rate the perfume intensity on dry towels before and after rubbing by using a scale between 1 (non-perceptible perfume) and 10 (very strong perfume intensity).

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Fats And Perfumes (AREA)

Abstract

La présente invention concerne une composition solide de renforçateur de parfum comprenant : - un support solide, - une poudre granulée comprenant des particules constituées par : a) une matrice polymère soluble dans l'eau, b) une phase huileuse comprenant un parfum dispersé dans ladite matrice polymère, ladite huile étant au moins partiellement encapsulée dans des microcapsules, - la poudre granulée comprenant jusqu'à 30 % en poids d'huile encapsulée sur la base du poids total de la poudre.
PCT/EP2018/057419 2017-03-24 2018-03-23 Composition solide de renforçateur de parfum WO2018172514A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
MX2019009936A MX2019009936A (es) 2017-03-24 2018-03-23 Composicion solida reforzadora del aroma.
CN201880019693.5A CN110431221B (zh) 2017-03-24 2018-03-23 固体香味增强剂组合物
US16/496,884 US11034920B2 (en) 2017-03-24 2018-03-23 Solid scent booster composition
EP18712222.1A EP3601516B1 (fr) 2017-03-24 2018-03-23 Composition renforçatrice de parfum solide
SG11201906415Q SG11201906415QA (en) 2017-03-24 2018-03-23 Solid scent booster composition
JP2019551623A JP7038730B2 (ja) 2017-03-24 2018-03-23 固体香気増強剤組成物
ES18712222T ES2986583T3 (es) 2017-03-24 2018-03-23 Composición potenciadora del aroma sólido

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US201762475958P 2017-03-24 2017-03-24
US62/475,958 2017-03-24
EP17167487.2 2017-04-21
EP17167487 2017-04-21

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CN111155314A (zh) * 2018-11-07 2020-05-15 广州优涤日化有限公司 一种颗粒状织物护理剂及其制备方法
EP3673984A1 (fr) * 2018-12-31 2020-07-01 Clariant International Ltd Microencapsulation de parfum
WO2021023922A1 (fr) * 2019-08-06 2021-02-11 Microcapsules Technologies Procédé de fabrication de microcapsules renfermant un actif lipophile, microcapsules préparées par ce procédé et leur utilisation
CN113557082A (zh) * 2019-07-30 2021-10-26 弗门尼舍有限公司 复合微胶囊
WO2021214009A1 (fr) 2020-04-22 2021-10-28 Givaudan Sa Renforçateur d'odeur
EP3947618A1 (fr) * 2019-05-06 2022-02-09 Colgate-Palmolive Company Compositions de soin de tissu solides et leurs procédés
WO2023104688A1 (fr) * 2021-12-06 2023-06-15 Givaudan Sa Composition solide
WO2023172542A1 (fr) 2022-03-07 2023-09-14 International Flavors & Fragrances Inc. Granulés contenant un parfum
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WO2024235792A1 (fr) 2023-05-12 2024-11-21 Givaudan Sa Composition
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WO2025046058A1 (fr) * 2023-08-30 2025-03-06 Firmenich Sa Renforçateur de parfum
WO2025051371A1 (fr) * 2023-09-07 2025-03-13 Symrise Ag Pastille de parfum
WO2025056650A1 (fr) * 2023-09-13 2025-03-20 Givaudan Sa Composition de parfum

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US11718815B2 (en) 2018-09-26 2023-08-08 Firmenich Sa Powder detergent composition
WO2020064467A1 (fr) * 2018-09-26 2020-04-02 Firmenich Sa Composition de détergent en poudre
CN111155314A (zh) * 2018-11-07 2020-05-15 广州优涤日化有限公司 一种颗粒状织物护理剂及其制备方法
US20220062847A1 (en) * 2018-12-31 2022-03-03 Clariant International Ltd. Perfume microencapsulation
EP3673984A1 (fr) * 2018-12-31 2020-07-01 Clariant International Ltd Microencapsulation de parfum
WO2020141080A1 (fr) * 2018-12-31 2020-07-09 Clariant International Ltd Microencapsulation de parfum
CN113260450A (zh) * 2018-12-31 2021-08-13 科莱恩国际有限公司 香料微胶囊化
US20220195336A1 (en) * 2019-05-06 2022-06-23 Colgate-Palmolive Company Solid Fabric Care Compositions and Methods for the Same
EP3947618A1 (fr) * 2019-05-06 2022-02-09 Colgate-Palmolive Company Compositions de soin de tissu solides et leurs procédés
CN113557082A (zh) * 2019-07-30 2021-10-26 弗门尼舍有限公司 复合微胶囊
FR3099711A1 (fr) * 2019-08-06 2021-02-12 Microcapsules Technologies Procédé de fabrication de microcapsules renfermant un actif lipophile, microcapsules préparées par ce procédé et leur utilisation
CN114206488A (zh) * 2019-08-06 2022-03-18 微胶囊科技公司 包含亲脂性活性成分的微胶囊的制造方法、由所述方法制备的微胶囊及其用途
WO2021023922A1 (fr) * 2019-08-06 2021-02-11 Microcapsules Technologies Procédé de fabrication de microcapsules renfermant un actif lipophile, microcapsules préparées par ce procédé et leur utilisation
WO2021214009A1 (fr) 2020-04-22 2021-10-28 Givaudan Sa Renforçateur d'odeur
WO2023104688A1 (fr) * 2021-12-06 2023-06-15 Givaudan Sa Composition solide
WO2023172542A1 (fr) 2022-03-07 2023-09-14 International Flavors & Fragrances Inc. Granulés contenant un parfum
WO2024104974A1 (fr) * 2022-11-15 2024-05-23 Givaudan Sa Composition de blanchisserie
WO2024235792A1 (fr) 2023-05-12 2024-11-21 Givaudan Sa Composition
GB2630434A (en) * 2023-05-24 2024-11-27 Tufco L P Scent booster for laundry
WO2025046058A1 (fr) * 2023-08-30 2025-03-06 Firmenich Sa Renforçateur de parfum
WO2025051371A1 (fr) * 2023-09-07 2025-03-13 Symrise Ag Pastille de parfum
WO2025056650A1 (fr) * 2023-09-13 2025-03-20 Givaudan Sa Composition de parfum

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