EP4359502A1 - Composition de lessive - Google Patents

Composition de lessive

Info

Publication number
EP4359502A1
EP4359502A1 EP22731175.0A EP22731175A EP4359502A1 EP 4359502 A1 EP4359502 A1 EP 4359502A1 EP 22731175 A EP22731175 A EP 22731175A EP 4359502 A1 EP4359502 A1 EP 4359502A1
Authority
EP
European Patent Office
Prior art keywords
particles
composition according
weight
quaternary ammonium
halide
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP22731175.0A
Other languages
German (de)
English (en)
Inventor
Jiemin GE
Na Xu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
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 Unilever Global IP Ltd, Unilever IP Holdings BV filed Critical Unilever Global IP Ltd
Publication of EP4359502A1 publication Critical patent/EP4359502A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening 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
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707—Polyethers, e.g. polyalkyleneoxides

Definitions

  • the present invention relates to a laundry composition
  • a laundry composition comprising a plurality of particles which comprise polyethylene glycol as a carrier and softening actives.
  • Fabric softener is a popular household cleaning product that is used to reduce harshness in clothes that are dried in air after washing. Fabric softeners typically coat the surface of a fabric with substances that are electrically charged, causing threads to “stand up” from the surface and thereby imparting a softer and fluffier texture.
  • a typical laundry cycle can be divided in sub-cycles of washing, rinsing and drying.
  • Most current softening agents used in home fabric softener are either liquid compositions that are released from a special compartment of the washing machine during the rinsing step or softening sheets that are manually introduced during the drying step.
  • Fabric softeners comprising cationic softening actives are usually not suitable to be applied during the washing cycle of laundry washing together with a laundry detergent because undesirable interactions will occur between the cationic softening active and anionic surfactants in the detergent, which leads to little or no softening benefit and even affects the cleaning performance of the laundry detergent.
  • WO 2020/117643 relates to a composition
  • a composition comprising a plurality of particles, said plurality of particles comprising: about 25% to about 94% by weight a water soluble carrier; about 5% to about 45% by weight a quaternary ammonium compound; and about 0.5% to about 10% by weight a cationic polymer; wherein said plurality of particles comprises individual particles; wherein each individual particles has a mass from about 1 mg to about 1 g; and wherein said individual particles each have a density less than about 0.98 g/cm 3 .
  • WO 2019/025244 relates to a composition comprising a plurality of particles, said particles comprising: about 25% to about 94% by weight a water soluble carrier; about 5% to about 45% by weight a quaternary ammonium compound; about 1% to about 40% by weight a fatty acid; and about 0.5% to about 10% by weight a cationic polymer; wherein each of said particles has a mass from about 1 mg to about 1 g.
  • US 2019/0169539A1 relates to a composition
  • a composition comprising a plurality of particles, the plurality of particles including about 25% to about 94% by weight a water soluble carrier; about 5% to about 45% by weight a quaternary ammonium compound; and about 0.5% to about 10% by weight a cationic polymer; wherein the plurality of particles comprises individual particles that comprises at least one of the quaternary ammonium compound and the cationic polymer; wherein the individual particles differ from one another in weight fraction of at least one of the quaternary ammonium compound and the cationic polymer; and wherein the individual particles each have a mass from about 1 mg to about 1g.
  • WO 2020/006346A1 relates to solid laundry fabric softening compositions combining quaternary dialkyl actives with low iodine values and silicone provide softness without causing any significant yellowing or loss of water absorption or wicking to the treated linen.
  • the present invention is directed to a composition
  • a composition comprising a plurality of particles, wherein the particles comprise: a) from 30 to 95% by weight of polyethylene glycol having a weight average molecular weight of 4,000 to 20,000; and b) a quaternary ammonium compound having a structure represented by formula (I):
  • each of R 1 and R 2 is independently a C 1 -C 4 alkyl group; each of R 3 and R 4 is independently a linear or branched C 16 to C 22 alkyl or alkenyl group;
  • X is a halide or alkyl sulfate, preferably chloride or methylsulfate.
  • the present invention is directed to use of the composition of any embodiment of the first aspect to provide a softening benefit to laundered fabrics during the laundry process.
  • composition of the present invention can be used as a conventional softening composition after the washing cycle, but it is particularly suited for use during the washing sub-cycle of a laundry cycle.
  • the particles of the present invention comprise polyethylene glycol (PEG).
  • PEG comes in various weight average molecular weights.
  • the PEG employed in the particles has a weight average molecular weight of from 4,000 to 20,000 g/mol, preferably from 5,000 to 18,000 g/mol, more preferably from 6,000 to 15,000 g/mol and most preferably from 7,000 to 13,000 g/mol.
  • suitable PEG are: Polyglycol 8000 ex Clariant and Pluriol 8000 ex BASF.
  • the particles of the present invention comprise no less than 30% by weight of PEG, preferably more than 40% of PEG, more preferably more than 50% of PEG and most preferably more than 60% of PEG by weight of the particle.
  • the particles of the present invention comprise no more than 95% by weight of PEG, preferably less than 85% of PEG, more preferably less than 75% of PEG and most preferably less than 70% of PEG by weight of the particles.
  • the particles comprise 30 to 95% of PEG, preferably 40 to 85% of PEG, more preferably 50 to 75% by weight of the particles.
  • the particles comprise a quaternary ammonium compound having a structure represented by formula (I):
  • each of R 1 and R 2 is independently a linear or branched C1-C4 alkyl group; each of R 3 and R 4 is independently a linear or branched C16 to C22 alkyl or alkenyl group, X is a halide or alkyl sulfate, preferably chloride or methylsulfate.
  • each of R 1 and R 2 independently is a linear C1-C4 alkyl, more preferably a methyl or ethyl group, most preferably a methyl group.
  • each of R 3 and R 4 is a linear Cie to C22 alkyl or alkenyl group.
  • each of R 3 and R 4 independently is a linear Cie to C22 alkyl group.
  • R 3 and R 4 are identical groups.
  • the quaternary ammonium compound preferably comprises dimethyldioctadecylammonium halide, dimethyldihexadecylammonium halide, dimethyldidocosylammonium halide, dimethyldieicosylammonium halide or combinations thereof.
  • the counter ion is preferably chloride.
  • the quaternary ammonium compound is dimethyldioctadecylammonium chloride.
  • the particles of the present invention preferably comprise from 0.1 to 50% by weight of the quaternary ammonium compound, more preferably from 1 to 40%, more preferably still from 5 to 35% and most preferably 10 to 30%.
  • the combination of the PEG and the quaternary ammonium compound preferably makes up at least 70%, more preferably at least 80% by weight of the particles.
  • the particles may comprise other quaternary ammonium compounds in addition to the quaternary ammonium compound having a structure represented by formula (I).
  • a preferred class of quaternary ammonium compound are so called “ester quats”.
  • Particularly preferred materials are the ester-linked triethanolamine (TEA) quaternary ammonium compounds comprising a mixture of mono-, di- and tri-ester linked components.
  • TEA-based fabric softening compounds comprise a mixture of mono, di- and tri ester forms of the compound where the di-ester linked component comprises no more than 70 wt.% of the fabric softening compound, preferably no more than 60 wt.% e.g. no more than 55%, or even no more that 45% of the fabric softening compound and at least 10 wt.% of the monoester linked component.
  • a first group of suitable quaternary ammonium compound is represented by formula (II):
  • each R is independently selected from a Cs to C35 alkyl or alkenyl group;
  • R 1 represents a Ci to C4 alkyl, C2 to C4 alkenyl or a Ci to C4 hydroxyalkyl group;
  • T may be either O-CO. (i.e. an ester group bound to R via its carbon atom), or may alternatively be CO-O (i.e. an ester group bound to R via its oxygen atom);
  • n is a number selected from 1 to 4;
  • m is a number selected from 1, 2, or 3; and
  • X is an anionic counter-ion, such as a halide or alkyl sulphate, e.g. chloride or methylsulfate.
  • Suitable actives include soft quaternary ammonium actives such as Stepantex VT90, Rewoquat WE18 (ex-Evonik) and Tetranyl L1/90N, Tetranyl L190 SP and Tetranyl L190 S (all ex-Kao).
  • TEA ester quats actives rich in the di-esters of triethanolammonium methylsulfate, otherwise referred to as "TEA ester quats".
  • PreapagenTM TQL Ex-Clariant
  • TetranylTM AHT-1 Ex-Kao
  • AT-1 di-[hardened tallow ester] of triethanolammonium methylsulfate
  • L5/90 di-[palm ester] of triethanolammonium methylsulfate
  • RewoquatTM WE15 a di-ester of triethanolammonium methylsulfate having fatty acyl residues deriving from C10-C20 and C16-C18 unsaturated fatty acids
  • a second group of suitable quaternary ammonium compound is represented by formula (III):
  • each R 1 group is independently selected from Ci to C4 alkyl, hydroxyalkyl or C2 to C4 alkenyl groups; and wherein each R2 group is independently selected from Cs to C28 alkyl or alkenyl groups; and wherein n, T, and X- are as defined above.
  • Preferred materials of this second group include 1,2 bis[tallowoyloxy]-3- trimethylammonium propane chloride, 1,2 bis[hardened tallowoyloxy]-3- trimethylammonium propane chloride, 1,2-bis[oleoyloxy]-3-trimethylammonium propane chloride, and 1 ,2 bis[stearoyloxy]-3-trimethylammonium propane chloride.
  • Such materials are described in US 4, 137,180 (Lever Brothers).
  • these materials also comprise an amount of the corresponding mono-ester.
  • a third group of suitable quaternary ammonium compound is represented by formula (IV): wherein each R 1 group is independently selected from Ci to C4 alkyl, or C2 to C4 alkenyl groups; and wherein each R2 group is independently selected from Cs to C28 alkyl or alkenyl groups; and n, T, and X- are as defined above.
  • Preferred materials of this third group include bis(2-tallowoyloxyethyl)dimethyl ammonium chloride, partially hardened and hardened versions thereof.
  • a fourth group of suitable quaternary ammonium compound is represented by formula (VI)
  • R 1 and R 2 are independently selected from C10 to C22 alkyl or alkenyl groups, preferably C M to C20 alkyl or alkenyl groups.
  • X- is as defined above.
  • the iodine value of the quaternary ammonium compound is preferably from 0 to 80, more preferably from 0 to 60, and most preferably from 0 to 45.
  • the iodine value may be chosen as appropriate.
  • Essentially saturated material having an iodine value of from 0 to 5, preferably from 0 to 1 may be used in the compositions of the invention. Such materials are known as "hardened" quaternary ammonium compounds.
  • a further preferred range of iodine values is from 20 to 60, preferably 25 to 50, more preferably from 30 to 45.
  • a material of this type is a "soft" triethanolamine quaternary ammonium compound, preferably triethanolamine di-alkylester methylsulfate. Such ester- linked triethanolamine quaternary ammonium compounds comprise unsaturated fatty chains.
  • the iodine value represents the mean iodine value of the parent fatty acyl compounds or fatty acids of all of the quaternary ammonium materials present.
  • the iodine value represents the mean iodine value of the parent acyl compounds of fatty acids of all of the quaternary ammonium materials present.
  • Iodine value as used in the context of the present invention refers to, the fatty acid used to produce the quaternary ammonium compound, the measurement of the degree of unsaturation present in a material by a method of NMR spectroscopy as described in Anal. Chem., 34, 1136 (1962) Johnson and Shoolery.
  • the particles comprise other quaternary ammonium compounds in addition to the quaternary ammonium compound having a structure represented by formula (I)
  • the particles typically comprise less than 10% by weight of the additional quaternary ammonium compound, more preferably less than 5% and most preferably less than 1%. It is especially preferred that the particles do not comprise other quaternary ammonium compound in addition to the quaternary ammonium compound having a structure represented by formula (I).
  • the particles of the present invention may be used to additionally impart fragrance to a fabric.
  • the particles comprise from 0.1 to 30% by weight of perfume materials i.e. free perfume and/or perfume microcapsules.
  • free perfumes and perfume microcapsules provide the consumer with perfume hits at different points during the wash cycle. It is particularly preferred that the particles of the present invention comprise a combination of both free perfume and perfume microcapsules.
  • the particles of the present invention comprise 0.5 to 20% perfume materials, more preferably 1 to 15% perfume materials, most preferably 2 to 10% perfume materials.
  • Useful perfume components may include materials of both natural and synthetic origin. They include single compounds and mixtures. Specific examples of such components may be found in the current literature, e.g., in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press; Synthetic Food Adjuncts, 1947 by M. B. Jacobs, edited by Van Nostrand; or Perfume and Flavor Chemicals by S. Arctander 1969, Montclair, N.J. (USA). These substances are well known to the person skilled in the art of perfuming, flavouring, and/or aromatizing consumer products.
  • the particles of the invention preferably comprise 0.1 to 15% free perfume, more preferably 0.5 to 8% of free perfume by weight of the particles.
  • Particularly preferred perfume components are blooming perfume components and substantive perfume components.
  • Blooming perfume components are defined by a boiling point less than 250°C and a LogP greater than 2.5.
  • Substantive perfume components are defined by a boiling point greater than 250°C and a LogP greater than 2.5. Boiling point is measured at standard pressure (760 m Hg).
  • a perfume composition will comprise a mixture of blooming and substantive perfume components.
  • the perfume composition may comprise other perfume components.
  • perfume components it is commonplace for a plurality of perfume components to be present in a free oil perfume composition.
  • compositions for use in the present invention it is envisaged that there will be three or more, preferably four or more, more preferably five or more, most preferably six or more different perfume components.
  • An upper limit of 300 perfume components may be applied.
  • the particles of the present invention preferably comprise 0.1 to 15% of perfume microcapsules, more preferably 0.5 to 8% of perfume microcapsules by weight of the particles.
  • the weight of microcapsules is of the material as supplied.
  • suitable encapsulating materials may comprise, but are not limited to; aminoplasts, proteins, polyurethanes, polyacrylates, polymethacrylates, polysaccharides, polyamides, polyolefins, gums, silicones, lipids, modified cellulose, polyphosphate, polystyrene, polyesters or combinations thereof.
  • Particularly preferred materials are aminoplast microcapsules, such as melamine formaldehyde or urea formaldehyde microcapsules.
  • Perfume microcapsules of the present invention can be friable microcapsules and/or moisture activated microcapsules.
  • friable it is meant that the perfume microcapsule will rupture when a force is exerted.
  • moisture activated it is meant that the perfume is released in the presence of water.
  • the particles of the present invention preferably comprise friable microcapsules. Moisture activated microcapsules may additionally be present. Examples of a microcapsules which can be friable include aminoplast microcapsules.
  • Perfume components contained in a microcapsule may comprise odiferous materials and/or pro-fragrance materials. Particularly preferred perfume components contained in a microcapsule are blooming perfume components and substantive perfume components. Blooming perfume components are defined by a boiling point less than 250°C and a LogP greater than 2.5. Substantive perfume components are defined by a boiling point greater than 250°C and a LogP greater than 2.5. Boiling point is measured at standard pressure (760 mm Hg).
  • a perfume composition will comprise a mixture of blooming and substantive perfume components.
  • the perfume composition may comprise other perfume components.
  • perfume components it is commonplace for a plurality of perfume components to be present in a microcapsule.
  • compositions for use in the present invention it is envisaged that there will be three or more, preferably four or more, more preferably five or more, most preferably six or more different perfume components in a microcapsule.
  • An upper limit of 300 perfume components may be applied.
  • the microcapsules may comprise perfume components and a carrier for the perfume ingredients, such as zeolites or cyclodextrins.
  • the particles of the present invention may additionally comprise a hydrolysed protein and/or its derivatives.
  • the hydrolysed protein and/or its derivatives is preferably present at a level of from 0.01 to 10% by weight of the particles, more preferably from 0.05 to 8%, most preferably from 0.1 to 5%.
  • Hydrolysed protein or protein hydrolysates are proteins which are obtainable by hydrolysis of proteins. Hydrolysis can be achieved by chemical reactions, in particular by alkaline hydrolysis, acid hydrolysis, enzymatic hydrolysis or combinations thereof.
  • hydrolytic enzymes are suitable, for example alkaline proteases.
  • the production of protein hydrolysates is described, for example, by G. Schuster and A. Domsch in soaps and oils Fette Wachse 108, (1982) 177 and Cosm.Toil, respectively. 99, (1984) 63, by H.W. Steisslinger in Parf.Kosm. 72, (1991) 556 and F. Aurich et al. in Tens. Surf. Det. 29, (1992) 389 appeared.
  • hydrolysed proteins of the present invention may come from a variety of sources.
  • the proteins may be naturally sourced, e.g from plants or animal sources, or they may be synthetic proteins.
  • the protein is a naturally sourced protein or a synthetic equivalent of a naturally sourced protein.
  • a preferred class of proteins are plant proteins, i.e. proteins obtained from a plant or synthetic equivalents thereof.
  • the protein is obtained from a plant.
  • Preferred plant sources include nuts, seeds, beans, and grains »
  • Particularly preferred plant sources are grains.
  • grains include cereal grains (e.g. millet, maize, barley, oats, rice and wheat), pseudoceral grains (e.g. buckwheat and quinoa), pulses (e.g. chickpeas, lentils and soybeans) and oilseeds (e.g. mustard, rapeseed, sunflower seed, hemp seed, poppy seed, flax seed).
  • cereal grains e.g. millet, maize, barley, oats, rice and wheat
  • pseudoceral grains e.g. buckwheat and quinoa
  • pulses e.g. chickpeas, lentils and soybeans
  • oilseeds e.g. mustard, rapeseed, sunflower seed, hemp seed, poppy seed, flax seed.
  • Most preferred are cereal grains, in particular wheat proteins or synthetic equivalents to wheat proteins.
  • the hydrolysed protein preferably has a weight-average molecular weight Mw in the range from 300 g/mol to 50,000 g/mol, in particular from 300 g/mol to 15,000 g/mol.
  • the average molecular weight Mw can be determined, for example, by gel permeation chromatography (GPC) (Andrews P., "Estimation of the Molecular Weight of Proteins by Sephadex Gel Filtration"; Biochem J., 1964, 91, pages 222 to 233).
  • GPC gel permeation chromatography
  • the derivatives of hydrolysed protein are prepared by chemically modify the hydrolysed protein.
  • chemical modification includes, for example, esterification of carboxyl groups, acylation of amino groups and quaternisation of amino groups.
  • hydrolysed protein is cationically modified hydrolysed protein.
  • a cationically modified hydrolysed wheat protein Preferably the hydrolysed protein contains at least one radical of the formula:
  • R1 is an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 1 to 30 carbon atoms, or a hydroxyalkyl group having 1 to 30 carbon atoms.
  • R1 is preferably selected from, a methyl group, a C1o-i 8 alkyl, or a C10-13 alkenyl group,
  • X is O, N or S
  • R represents the protein residue.
  • protein residue is to be understood as meaning the backbone of the corresponding hydrolysed protein formed by the linking of amino acids, to which the cationic group is bound.
  • the cationization of the hydrolysed protein with the above-described residues can be achieved by reacting the hydrolysed protein, in particular the reactive groups of the amino acids of the hydrolysed protein, with halides which otherwise correspond to compounds of the above formula (wherein the X-R moiety is replaced by a halogen).
  • the derivative of hydrolysed protein is a protein-silicone copolymer.
  • the silicone component is covalently bonded to amino groups of the protein and at least some of the silicone component forms cross-links between different protein chains.
  • the protein component of the copolymer is preferably a hydrolysed plant protein, more preferably a hydrolysed wheat protein.
  • the protein component may be in the form of a chemically modified protein, preferably cationically modified protein, more preferably quaternised protein. It is preferred if the protein component of the protein-silicone copolymer is a cationically modified hydrolysed protein as described above, more preferably a quaternised hydrolysed protein. It is particularly preferred that the protein component of the copolymer is a quaternised hydrolysed wheat protein.
  • the protein component of the protein-silicone copolymer may represent from 5 to 98% by weight of the copolymer, more preferably from 50 to 90%.
  • the silicone component is organofunctional silane/silicone compounds.
  • the protein-silicone copolymer may be prepared by covalently attaching organofunctional silane/silicone compounds to the protein amino groups to form larger polymer molecules including protein cross-linking.
  • further polymerisation may occur through condensation of silanol groups and such further polymerisation increases the amount of cross-linking.
  • the organofunctional silicone compounds used for reaction with the protein component to form the copolymer must contain a functional group capable of reacting with the chain terminal and/or side chain amino groups of the protein. Suitable reactive groups include, for example, acyl halide, sulphonyl halide, anhydride, aldehyde and epoxide groups.
  • the silicone component may be any compound which contains a siloxane group (Si-O-Si) or any silane capable of forming a siloxane in situ by condensation of silanol (Si-OH) groups or any alkoxysilane or halosilane which hydrolyses to form a corresponding silanol and then condenses to form a siloxane group.
  • Si-O-Si siloxane group
  • Si-OH silanol
  • halosilane any alkoxysilane or halosilane which hydrolyses to form a corresponding silanol and then condenses to form a siloxane group.
  • hydrolysed protein is a quaternised hydrolysed wheat protein-silicone copolymer, which is made commercially available, for example, from Croda under the trade name Coltide Radiance.
  • Hydrolysed protein and/or its derivatives in the particles described herein may provide an improved perfume experience for the consumer and / or improve softness of a fabric.
  • improved perfume experience it is meant an increased intensity on wet and 24 hour dry fabrics.
  • the particles of the present invention may additionally comprise a fatty acid.
  • the particles comprise from 0.2 to 20% by weight of saturated or unsaturated fatty acid. More preferably the particles comprise 0.5 to 15%, even more preferably 0.7 to 10%, most preferably 1 to 5% by weight of fatty acid.
  • the iodine value of the fatty acid is preferably less than 20, more preferably less than 10, and most preferably less than 5.
  • the fatty acid is a saturated or unsaturated Cs to C24 fatty acid, more preferably a saturated or unsaturated C12 to C22 fatty acid.
  • fatty acids examples include lauric acid, caprylic acid, myristic acid, stearic acid, oleic acid, palmitic acid or mixtures thereof.
  • the fatty acid comprises stearic acid, palmitic acid, myristic acid or mixtures thereof.
  • the particles of the present invention may additionally comprise a silicone compound.
  • Suitable silicone compounds include polysiloxanes, in particular polydimethylsiloxanes which have the I NCI designation dimethicone. Also suitable for use in particles of this invention are polydimethylsiloxanes having hydroxyl end groups, which have the I NCI designation dimethiconol.
  • Another class of silicones which may be used are functionalized silicones such as amino functional silicones, meaning a silicone containing at least one primary, secondary or tertiary amine group, or a quaternary ammonium group.
  • anionically modified silicones which incorporate a carboxylate, sulphate, sulphonate, phosphate, and/or phosphonate functionality.
  • silicone gums having a slight degree of cross-linking, as are described for example in WO 96/31188.
  • the silicone compound is amino functional silicones.
  • the primary, secondary, tertiary and/or quaternary amine groups may either form part of the main polymer chain or more preferably be carried by a side or pendant group carried by the polymeric backbone.
  • suitable amino functional silicones include polysiloxanes having the I NCI designation “amodimethicone.”
  • the particles comprise from 0.01 to 20%, more preferably from 0.05 to 10%, most preferably from 0.1 to 5% by weight of a silicone compound.
  • the particles of the invention may comprise a colourant.
  • the colourant may be a dye or a pigment or a mixture thereof.
  • the colourant has the purpose to impart colour to the particles, it is not intended to be a shading dye or to impart colour to the laundered fabrics.
  • a single colourant or a mixture of colourants may be used.
  • the colourant is a dye, more preferably a polymeric dye.
  • suitable dyes include the LIQUITINET range of dyes ex Milliken Chemical.
  • the particles of the present invention comprise 0.001 to 2%, more preferably 0.005 to 1%, most preferably 0.01 to 0.6% of by weight of the colourant.
  • the particles of the present invention may additionally comprise an additional carrier (in addition to the PEG).
  • the additional carrier material may provide various benefits such as stability benefits.
  • the additional carrier materials may be selected from the group consisting of: polymers (e.g, polyethylene glycol, ethylene oxide/propylene oxide block copolymers, polyvinyl alcohol, polyvinyl acetate, and derivatives thereof), proteins (e.g., gelatin, albumin, casein), water-soluble or water dispersible fillers (e. g., sodium chloride, sodium sulfate, sodium carbonate/bicarbonate, zeolite, silica, clay), and combinations thereof.
  • polymers e.g, polyethylene glycol, ethylene oxide/propylene oxide block copolymers, polyvinyl alcohol, polyvinyl acetate, and derivatives thereof
  • proteins e.g., gelatin, albumin, casein
  • water-soluble or water dispersible fillers e. g., sodium chloride, sodium sul
  • Suitable additional carrier materials include, for example, water soluble organic alkali metal salt, water soluble inorganic alkaline earth metal salt, water soluble organic alkaline earth metal salt, water soluble carbohydrate, water soluble silicate, water soluble urea, clay, water insoluble silicate, citric acid, carboxymethyl cellulose, fatty acid, fatty alcohol, glyceryl diester of hydrogenated tallow, glycerol, polyvinyl alcohol or mixtures thereof.
  • the particles of the present invention comprise from 0.1 to 50%, more preferably from 1 to 35% and most preferably from 2 to 25% by weight of the additional carrier.
  • the particle is substantially free of water.
  • substantially free it is meant herein 0 to 1 wt.% of water, more preferably 0 to 0.1 wt.% of water, even more preferably 0 to 0.01 wt.% of water in the particles and most preferably free of any water.
  • the particles of the present invention may comprise other benefit agents in addition to the perfumes and the quaternary ammonium compound which are included in the particles to deliver benefits to laundered fabrics.
  • the benefit agents may be free in the carrier material i.e. the PEG, or they may be encapsulated. Suitable encapsulating materials are outlined above in relation to perfumes.
  • Exemplary additional benefit agent includes: a) malodour agents for example: uncomplexed cyclodextrin; odor blockers; reactive aldehydes; flavanoids; zeolites; activated carbon; and mixtures thereof b) dye transfer inhibitors c) shading dyes d) insect repellents e) organic sunscreen actives, for example, octylmethoxy cinnamate; f) antimicrobial agents, for example, 2-hydroxy-4, 2,4- trichlorodiphenylether; g) ester solvents; for example, isopropyl myristate; h) lipids and lipid like substance, for example, cholesterol; i) hydrocarbons such as paraffins, petrolatum, and mineral oil j) fish and vegetable oils; k) hydrophobic plant extracts;
  • malodour agents for example: uncomplexed cyclodextrin; odor blockers; reactive aldehydes; flavanoids; zeolites;
  • the particles of the present invention additionally comprise a surfactant, more preferably a surfactant selected from anionic surfactants, nonionic surfactants and a combination thereof.
  • a surfactant selected from anionic surfactants, nonionic surfactants and a combination thereof.
  • Preferred surfactants include, for example, alkyl sulfates, alkyl ether sulfates, soap, ethoxylated alkyl alcohols, alkyl polyglucosides, fatty acid amides or a mixture thereof.
  • the amount of surfactant is present in an amount of from 0.1 to 15%, more preferably from 0.4 to 7% and most preferably 1 to 5% by weight of the particles.
  • the particles of the present invention may be in any solid form, for example: powder, pellet, tablet, prill, pastille or extrudate.
  • the particles are in the form of a pastille.
  • Pastilles can, for example, be produced using ROTOFORMER Granulation Systems ex. Sandvick Materials.
  • the particles may be any shape or size suitable for dissolution in the laundry process.
  • each individual particle has a mass of between 0.95 mg to 5 grams, more preferably 0.01 to 1 gram and most preferably 0.02 to 0.5 gram.
  • each individual particle has a maximum linear dimension in any direction of less than 10 mm, more preferably 1 to 8 mm and most preferably a maximum linear dimension of 4 to 6 mm.
  • the shape of the particles may be selected for example from spherical, hemispherical, compressed hemispherical, lentil shaped, oblong, or planar shapes such as petals.
  • a preferred shape for the particles is hemispherical, i.e. a dome shaped wherein the height of the dome is less than the radius of the base.
  • diameter of the substantially flat base provides the maximum linear dimension and the height of the particle is 1 to 5 mm, more preferably 2 to 3 mm. the dimensions of the particles of the present invention can be measured using Calipers.
  • the polyethylene glycol present in the particles of the present invention is suitably melted at a temperature above the melting point of the polyethylene glycol, preferably at least 2°C above the melting point of the polyethylene glycol, more preferably at least 5°C above the melting point of the polyethylene glycol.
  • the melting point is the average melting point for the polyethylene glycol used in a particular composition.
  • the particles of the present invention are formed from a melt comprising the ingredients, as outlined in the examples.
  • the melt can, for example, be formed into particles by: Pastillation e.g. using a ROTOFORMER ex Sandvick Materials, extrusion, prilling, by using moulds, casting the melt and cutting to size or spraying the melt.
  • the particles of the present invention are preferably homogeneously structured.
  • homogeneous it is meant that there is a continuous phase throughout the particle. There is not a core and shell type structure.
  • the ingredients will be distributed within the continuous phase.
  • the continuous phase is provided predominately by the polyethylene glycol.
  • the particles have a similar density with the washing liquid. In a such way, the particles may suspend in the middle of washing liquid longer to make them dissolve quicker. Therefore, it is preferable that the particles have a density of from 1 to 1.08 g/cm 3 and more preferably 1 to 1.05 g/cm 3 .
  • the particles of the present invention are for use in the laundry process. They may be added in the wash sub-cycle or a rinse sub-cycle of a laundry cycle using a washing machine. Alternatively, the particles may be used in manual hand washing of fabrics. The particles may be used in addition to other laundry products or they may be used as a standalone product.
  • the particles of the present invention are preferably dosed in a quantity of 1g to 50g, more preferably 10 g to 45 g, most preferably 15 g to 40 g.
  • the particles may be dosed by consumers from a package directly into the washing machine or into a dosing compartment on the washing machine.
  • the primary use of the particles of the present invention is to provide a softening benefit to laundered fabrics during the laundry process.
  • the particles may be further used to impart fragrance to laundered fabrics during the laundry process.
  • Particles were prepared as shown in Table 1. All ingredients are expressed by weight percent of the total formulation. Table 1 a. Commercially available PEG 10000 from Clariant. b. Commercially available under the trade name Adogen 442 from Evonik. c. Commercially available under the trade name Rewoquat WE 28 SH from Evonik d. Commercially available under the trade name Fentacare 1631 70 from Solvay.
  • Samples were prepared as follows: The PEG was heated in a mixing vessel with stirring until molten and homogeneous. The other ingredients were then slowly added with stirring one by one, and finally free perfume and perfume microcapsules were added. Stirring was continued during the addition of the ingredients and maintained for 30 minutes. The molten mixture was dropped onto a chilled plate by syringe. When the molten mixture falls on the cold surface a pastille will form as the melt solidifies. The formed pastilles had a compressed hemispherical shape with a maximum diameter 4 to 6 mm and a height 2 to 3 mm.
  • Towelling Squares (30x30cm size). The towelling squares were mixed in with the cotton T-shirt in a random order within the washing machine so that they are not all together. 20g of samples were added to the drum of a front loading washing machine followed by the mixed fabrics and finally 40g of liquid detergent (commercial OMO detergent) was added to the draw of the machine, door was closed and then the machine was set to wash. Wash time was 29 minutes including one-time wash and two times rinses. Once the wash had finished the load was removed from the machine and the terry towelling squares were separated out and lined dried on racks. Once the terry towelling squares were dry then the whole process was repeated again to achieve 3 washes with drying.
  • liquid detergent commercial OMO detergent
  • the towels were passed on for sensory evaluation without further conditioning.
  • the participants were asked to pick up the test towel in hands and required to gently manipulate it, then gave scores from 0 to 5.
  • a score of 5 is the highest score which corresponds to an excellent softening result.
  • a score of 0 is the lowest score which corresponds to a poor softening result.
  • W x change in whiteness of the stained textile treated with test samples before and after washing

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

Abstract

L'invention concerne une composition de lessive comprenant une pluralité de particules, la particule comprenant de 30 à 95 % en poids de polyéthylène glycol d'un poids moléculaire moyen en poids de 4 000 à 20 000 g/mol ; et un composé d'ammonium quaternaire ayant une structure représentée par la formule (I) : (R1)(R2)N+(R3)(R4) X- (I) dans laquelle R1 et R2 représentent indépendamment un groupe alkyle en C1-C4 linéaire ou ramifié ; R3 et R4 représentent indépendamment un groupe alkyle ou alcényle en C16 à C22 linéaire ou ramifié ; X- représente un halogénure ou un sulfate d'alkyle, de préférence un chlorure ou un sulfate de diméthyle.
EP22731175.0A 2021-06-21 2022-05-30 Composition de lessive Withdrawn EP4359502A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2021101147 2021-06-21
EP21188358 2021-07-29
PCT/EP2022/064634 WO2022268446A1 (fr) 2021-06-21 2022-05-30 Composition de lessive

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EP4359502A1 true EP4359502A1 (fr) 2024-05-01

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EP22731175.0A Withdrawn EP4359502A1 (fr) 2021-06-21 2022-05-30 Composition de lessive

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EP (1) EP4359502A1 (fr)
CN (1) CN117545832A (fr)
WO (1) WO2022268446A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1567947A (en) 1976-07-02 1980-05-21 Unilever Ltd Esters of quaternised amino-alcohols for treating fabrics
US4185087A (en) 1977-12-28 1980-01-22 Union Carbide Corporation Hair conditioning compositions containing dialkylamino hydroxy organosilicon compounds and their derivatives
US4326971A (en) * 1978-12-11 1982-04-27 Colgate Palmolive Company Detergent softener compositions
GB9507130D0 (en) 1995-04-06 1995-05-31 Unilever Plc Hair treatment composition
US10683475B2 (en) * 2017-05-31 2020-06-16 Henkel IP & Holding GmbH Fragranced pastille for laundry application
EP3662045B1 (fr) 2017-08-02 2021-10-13 Unilever IP Holdings B.V. Particules parfumées pour composition de lavage
US10640731B2 (en) 2017-12-01 2020-05-05 The Procter & Gamble Company Particulate laundry softening wash additive
CA3104685A1 (fr) 2018-06-29 2020-01-02 Ecolab Usa Inc. Conception d'une formule pour un adoucissant solide pour un tissu destine au blanchissage
EP3663384A1 (fr) 2018-12-04 2020-06-10 The Procter & Gamble Company Additif de lavage d'adoucissement du linge particulaire

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CN117545832A (zh) 2024-02-09

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