CA2653972A1 - Fabric softener composition - Google Patents
Fabric softener composition Download PDFInfo
- Publication number
- CA2653972A1 CA2653972A1 CA002653972A CA2653972A CA2653972A1 CA 2653972 A1 CA2653972 A1 CA 2653972A1 CA 002653972 A CA002653972 A CA 002653972A CA 2653972 A CA2653972 A CA 2653972A CA 2653972 A1 CA2653972 A1 CA 2653972A1
- Authority
- CA
- Canada
- Prior art keywords
- composition
- fabric softening
- weight
- cationic
- aqueous
- 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.)
- Abandoned
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- 239000000203 mixture Substances 0.000 title claims abstract description 92
- 239000002979 fabric softener Substances 0.000 title description 6
- 239000004744 fabric Substances 0.000 claims abstract description 30
- 125000002091 cationic group Chemical group 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003792 electrolyte Substances 0.000 claims abstract description 15
- 239000000178 monomer Substances 0.000 claims abstract description 15
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 13
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920006037 cross link polymer Polymers 0.000 claims abstract description 9
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 7
- 239000004665 cationic fabric softener Substances 0.000 claims abstract description 4
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 239000003760 tallow Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 6
- 239000000194 fatty acid Substances 0.000 claims description 6
- 229930195729 fatty acid Natural products 0.000 claims description 6
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical group [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims description 2
- 235000011148 calcium chloride Nutrition 0.000 claims 1
- 239000000047 product Substances 0.000 description 20
- 229920000642 polymer Polymers 0.000 description 15
- 239000004902 Softening Agent Substances 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 238000010790 dilution Methods 0.000 description 10
- 239000012895 dilution Substances 0.000 description 10
- -1 alkyl sulphate Chemical compound 0.000 description 7
- 150000002148 esters Chemical class 0.000 description 7
- 238000009472 formulation Methods 0.000 description 7
- 239000004615 ingredient Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 6
- 229920006317 cationic polymer Polymers 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 229910052740 iodine Inorganic materials 0.000 description 6
- 239000011630 iodine Substances 0.000 description 6
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 6
- 239000002304 perfume Substances 0.000 description 6
- 239000002562 thickening agent Substances 0.000 description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-O triethanolammonium Chemical compound OCC[NH+](CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-O 0.000 description 5
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 4
- 125000006656 (C2-C4) alkenyl group Chemical group 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 4
- 150000005690 diesters Chemical class 0.000 description 4
- UMSVPCYSAUKCAZ-UHFFFAOYSA-N propane;hydrochloride Chemical compound Cl.CCC UMSVPCYSAUKCAZ-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 3
- NOPFSRXAKWQILS-UHFFFAOYSA-N docosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCO NOPFSRXAKWQILS-UHFFFAOYSA-N 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical group C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- UABIXNSHHIMZEP-UHFFFAOYSA-N 2-[2-[(dimethylamino)methyl]phenyl]sulfanyl-5-methylaniline Chemical compound CN(C)CC1=CC=CC=C1SC1=CC=C(C)C=C1N UABIXNSHHIMZEP-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 150000002194 fatty esters Chemical class 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229920005684 linear copolymer Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 150000005691 triesters Chemical class 0.000 description 2
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical group CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- PUAQLLVFLMYYJJ-UHFFFAOYSA-N 2-aminopropiophenone Chemical compound CC(N)C(=O)C1=CC=CC=C1 PUAQLLVFLMYYJJ-UHFFFAOYSA-N 0.000 description 1
- 125000002853 C1-C4 hydroxyalkyl group Chemical group 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 150000001204 N-oxides Chemical class 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000002752 cationic softener Substances 0.000 description 1
- 210000004534 cecum Anatomy 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 229960000735 docosanol Drugs 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002190 fatty acyls Chemical group 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 description 1
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 239000002502 liposome Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000006179 pH buffering agent Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- XREXPQGDOPQPAH-QKUPJAQQSA-K trisodium;[(z)-18-[1,3-bis[[(z)-12-sulfonatooxyoctadec-9-enoyl]oxy]propan-2-yloxy]-18-oxooctadec-9-en-7-yl] sulfate Chemical compound [Na+].[Na+].[Na+].CCCCCCC(OS([O-])(=O)=O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(CCCCCC)OS([O-])(=O)=O)COC(=O)CCCCCCC\C=C/CC(CCCCCC)OS([O-])(=O)=O XREXPQGDOPQPAH-QKUPJAQQSA-K 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
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
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines in liquid 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
- 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
- C11D3/0015—Softening compositions liquid
-
- 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
- C11D3/046—Salts
Landscapes
- 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)
- Inorganic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A stable, concentrated (pre-dilute) aqueous fabric softening composition having a viscosity of from 300 to 1000, preferably 300 to 850, more preferably 400 to 800 mPa.s at 116 s-1 which composition is capable of being diluted with water in a 3:1 weight ratio of water:softening composition such that the resulting diluted softening composition is physically stable and has a viscosity of from 40 to 100 mPa.s at 116 s-1, preferable 50 to 90 mPa.s at 116 s-1, the composition comprising a) a cationic fabric softener b) 0.7 to 2.5 % by weight of a cationic cross-linked polymer that is desirable from the polymerization of from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 50 to 1000 ppm, preferably 350 to 1000 ppm, more preferably 500 to 1000 ppm of a difunctional vinyl addition monomer cross-linking agent, c) from 0.001 to 0.2 by weight of electrolyte.
Description
FABRIC SOFTENER COMPOSITION
The present invention relates to concentrated fabric conditioning compositions, and more particularly to aqueous rinse-cycle concentrated fabric softener compositions containing a cationic polymer or mixture of cationic polymers, which concentrated compositions (pre-dilute) is capable of being diluted with water prior to use, e.g. in a 3:1 or more weight ratio of water to concentrate, to provide a physically stable softener composition in both the concentrated and diluted forms.
Field of Invention Conventionally, most liquid fabric conditioning or fabric softener compositions make use of the thickening properties of surfactant ingredients or added salts to provide a desired rheology. More recently, the trend has been to incorporate specific thickeners into fabric softening compositions to provide a desired viscosity which remains stable over extended periods of time.
In commercial liquid fabric softener formulations the rheological properties of the product are critical for consumer acceptance. A common method of enhancing product appeal and conveying a perception of product richness and efficacy is to increase the apparent viscosity of the liquid product.
There are two key requirements for pre-dilute systems:
The present invention relates to concentrated fabric conditioning compositions, and more particularly to aqueous rinse-cycle concentrated fabric softener compositions containing a cationic polymer or mixture of cationic polymers, which concentrated compositions (pre-dilute) is capable of being diluted with water prior to use, e.g. in a 3:1 or more weight ratio of water to concentrate, to provide a physically stable softener composition in both the concentrated and diluted forms.
Field of Invention Conventionally, most liquid fabric conditioning or fabric softener compositions make use of the thickening properties of surfactant ingredients or added salts to provide a desired rheology. More recently, the trend has been to incorporate specific thickeners into fabric softening compositions to provide a desired viscosity which remains stable over extended periods of time.
In commercial liquid fabric softener formulations the rheological properties of the product are critical for consumer acceptance. A common method of enhancing product appeal and conveying a perception of product richness and efficacy is to increase the apparent viscosity of the liquid product.
There are two key requirements for pre-dilute systems:
i) the product should incorporate some mechanism which thickens the dilute product. If the initial product is too viscous, it is unlikely the product will mix satisfactorily on dilution, e.g. the diluted product may be lumpy. If the initial product has a lower viscosity such that satisfactory dispersion is assured, the resulting dilute product would usually be very thin. In many markets consumers have been encouraged to associate high viscosity with product strength.
ii) after dilution, the resulting product must exhibit good viscostability and stability to separation, as the product will be kept for some time and be used over a good number of washes/rinses.
EP 394 133 discloses stable aqueous fabric softening compositions containing a di-long chain, di-short chain quaternary ammonium softening compound in combination with a fatty alcohol and a water-soluble polymer to improve the rheological properties and enhance the softening performance of the composition.
W090/12862 discloses aqueous based fabric conditioning formulations comprising a water dispersible cationic softener and, as a thickener, a cross-linked cationic polymer that is derivable from a water soluble cationic ethylenically unsaturated monomer or blend of monomers, which is cross-linked by 5 to 45 ppm of a cross-linking agent comprising polyethylenic functions. An example of such a cross-linking agent is methylene bis acrylamide.
ii) after dilution, the resulting product must exhibit good viscostability and stability to separation, as the product will be kept for some time and be used over a good number of washes/rinses.
EP 394 133 discloses stable aqueous fabric softening compositions containing a di-long chain, di-short chain quaternary ammonium softening compound in combination with a fatty alcohol and a water-soluble polymer to improve the rheological properties and enhance the softening performance of the composition.
W090/12862 discloses aqueous based fabric conditioning formulations comprising a water dispersible cationic softener and, as a thickener, a cross-linked cationic polymer that is derivable from a water soluble cationic ethylenically unsaturated monomer or blend of monomers, which is cross-linked by 5 to 45 ppm of a cross-linking agent comprising polyethylenic functions. An example of such a cross-linking agent is methylene bis acrylamide.
EP-A-0799887 discloses liquid fabric softening compositions which are said to exhibit an excellent viscosity and phase stability as well as softness performance, which compositions comprise:
(a) 0.01 to 10 weight % of a fabric softener component, (b) at least 0.001 % of a thickening agent selected from the group of:
(i) associative polymers having a hydrophilic backbone and at least two hydrophobic groups per molecule attached to the hydrophilic backbone, (ii) the cross-linked cationic polymers described in the above mentioned W090/12862, crosslinked by 5 to 45 ppm of crosslinking agent comprising polyethylenic functions and (iii) mixtures of (i) and (ii) and (c) a component capable of sequestering metal ions.
W002/057400 discloses fabric conditioning compositions containing cationic polymeric thickeners obtained by polymerising a water soluble cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 70 to 300 ppm of difunctional vinyl addition monomer cross-linking agent. The thickened softening compositions are stated to be especially efficient for delivering fragrance in the softening composition to the treated fabrics.
W02004/061066 discloses a stable concentrated aqueous fabric softening composition having a viscosity of from about 3000 cps to about 15,000 cps, preferably 4000 to 15000 cps, which composition is capable of being diluted with water in a 4:1 weight ratio of water to concentrated softening composition prior to use such that the resulting diluted softening composition is physically stable and has a medium viscosity of from about 90 cps to about 300 cps, said composition comprising:
(a) from about 5 % to about 30 % by weight of a cationic fabric softener (b) at least about 0.01% by weight of:
(i) a cationic linear homopolymer that is derivable from the polymerisation of acrylic acid and/or methacrylic acid; or (ii) a linear copolymer that is derivable from the polymerisation of acrylic acid and/or methacrylic acid and acrylamide or methacrylamide, said homopolymer or copolymer having a molecular weight of from about 10,000 to about 30 million;
or (iii) a cationic crosslinked polymer that is derivable from the polymerisation of, from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide, and from 70 5 ppm to 300 ppm of a difunctional vinyl addition monomer cross-linking agent; or (c) at least about 0.01 % by weight of a mixture of polymers comprising a cationic linear homopolymer or linear copolymer as defined in (i) or (ii) herein, respectively and a cationic crosslinked polymer as defined in (iii) herein the respective amounts of (i) or (ii) or (iii) in said concentrated softening composition being selected to provide the desired medium viscosity of from about 90 cps to about 300 cps in said diluted composition.
It has been found that there are problems in meeting the ideal viscosity requirements for a pre-dilute product. In particular, the amount of polymer thickener required to provide sufficient viscosity in the product after dilution may result in the product having an unacceptably high viscosity prior to dilution.
The invention has been made with the above point in mind.
Summary of Invention According to the invention there is provided a stable, concentrated (pre-dilute) aqueous fabric softening composition having a viscosity of from 300 to 1000, preferably 300 to 850, more preferably 400 to 800 mPa.s at 116 s-1 which composition is capable of being diluted with water in a 3:1 weight ratio of water : softening composition such that the resulting diluted softening composition is physically stable and has a viscosity of from 40 to 100 mPa.s at 116 s-1, preferable 50 to 90 mPa.s at 116 s-1, the composition comprising a) a cationic fabric softener b) 0.7 to 2.5 % by weight of a cationic cross-linked polymer that is derivable from the polymerization of from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 50 to 1000 ppm, preferably 350 to 1000 ppm, more preferably 500 to 1000 ppm of a difunctional vinyl addition monomer cross-linking agent, c) from 0.001 to 0.2 by weight of electrolyte.
It has now surprisingly been found that the inclusion of a low level electrolyte, such as calcium chloride, can reduce the pre-dilution viscosity of a composition comprising a polymeric thickener without compromising the after dilution viscosity.
(a) 0.01 to 10 weight % of a fabric softener component, (b) at least 0.001 % of a thickening agent selected from the group of:
(i) associative polymers having a hydrophilic backbone and at least two hydrophobic groups per molecule attached to the hydrophilic backbone, (ii) the cross-linked cationic polymers described in the above mentioned W090/12862, crosslinked by 5 to 45 ppm of crosslinking agent comprising polyethylenic functions and (iii) mixtures of (i) and (ii) and (c) a component capable of sequestering metal ions.
W002/057400 discloses fabric conditioning compositions containing cationic polymeric thickeners obtained by polymerising a water soluble cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 70 to 300 ppm of difunctional vinyl addition monomer cross-linking agent. The thickened softening compositions are stated to be especially efficient for delivering fragrance in the softening composition to the treated fabrics.
W02004/061066 discloses a stable concentrated aqueous fabric softening composition having a viscosity of from about 3000 cps to about 15,000 cps, preferably 4000 to 15000 cps, which composition is capable of being diluted with water in a 4:1 weight ratio of water to concentrated softening composition prior to use such that the resulting diluted softening composition is physically stable and has a medium viscosity of from about 90 cps to about 300 cps, said composition comprising:
(a) from about 5 % to about 30 % by weight of a cationic fabric softener (b) at least about 0.01% by weight of:
(i) a cationic linear homopolymer that is derivable from the polymerisation of acrylic acid and/or methacrylic acid; or (ii) a linear copolymer that is derivable from the polymerisation of acrylic acid and/or methacrylic acid and acrylamide or methacrylamide, said homopolymer or copolymer having a molecular weight of from about 10,000 to about 30 million;
or (iii) a cationic crosslinked polymer that is derivable from the polymerisation of, from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide, and from 70 5 ppm to 300 ppm of a difunctional vinyl addition monomer cross-linking agent; or (c) at least about 0.01 % by weight of a mixture of polymers comprising a cationic linear homopolymer or linear copolymer as defined in (i) or (ii) herein, respectively and a cationic crosslinked polymer as defined in (iii) herein the respective amounts of (i) or (ii) or (iii) in said concentrated softening composition being selected to provide the desired medium viscosity of from about 90 cps to about 300 cps in said diluted composition.
It has been found that there are problems in meeting the ideal viscosity requirements for a pre-dilute product. In particular, the amount of polymer thickener required to provide sufficient viscosity in the product after dilution may result in the product having an unacceptably high viscosity prior to dilution.
The invention has been made with the above point in mind.
Summary of Invention According to the invention there is provided a stable, concentrated (pre-dilute) aqueous fabric softening composition having a viscosity of from 300 to 1000, preferably 300 to 850, more preferably 400 to 800 mPa.s at 116 s-1 which composition is capable of being diluted with water in a 3:1 weight ratio of water : softening composition such that the resulting diluted softening composition is physically stable and has a viscosity of from 40 to 100 mPa.s at 116 s-1, preferable 50 to 90 mPa.s at 116 s-1, the composition comprising a) a cationic fabric softener b) 0.7 to 2.5 % by weight of a cationic cross-linked polymer that is derivable from the polymerization of from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 50 to 1000 ppm, preferably 350 to 1000 ppm, more preferably 500 to 1000 ppm of a difunctional vinyl addition monomer cross-linking agent, c) from 0.001 to 0.2 by weight of electrolyte.
It has now surprisingly been found that the inclusion of a low level electrolyte, such as calcium chloride, can reduce the pre-dilution viscosity of a composition comprising a polymeric thickener without compromising the after dilution viscosity.
Detailed Description of the Invention The compositions of the invention have a viscosity of from 300 to 1000, preferably 300 to 850, more preferably 400 to 800 mPa.s at 116 s-1 enabling them to be dispersed from a container or sachet into a larger container for dilution, generally from 1:3 to 1:4 parts by weight composition:tap water. The resulting dilute compositions are stable and have a viscosity in the range 40 to 100, preferably 50 to 90 mPa.s at 116 s-1 enabling the dilute compositions to be readily dosed into the rinse, e.g. via the drawer of an automatic washing machine.
Cationic softening agent The cationic softening agent is generally one that is able to form a lamellar phase dispersion in water, in particular a dispersion of liposomes.
The cationic softening agent is typically a quaternary ammonium compound ("QAC"), in particular one having two C12-28 groups connected to the nitrogen head group that may independently be alkyl or alkenyl groups, preferably being connected to the nitrogen head group by at least one ester link, and more preferably by two ester links.
The average chain length of the alkyl and/or alkenyl groups is preferably at least C14 and more preferably at least C16.
It is particularly preferred that at least half of the groups have a chain length of C18. In general, the alkyl and/or alkenyl groups are predominantly linear.
A first group of QACs suitable for use in the present invention is represented by formula (I):
L (cH2) n (`I'R) ] m I
Rl -N+- [ ( cH2 ) ( OH ) ] 3-m x ( I ) wherein each R is independently selected from a Cs-3s alkyl or alkenyl group; R' represents a C1-4 alkyl, C2-4 alkenyl or a C1-4 hydroxyalkyl group; T is generally 0-C0. (i.e. an ester group bound to R via its carbon atom), but may alternatively be C0.0 (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 methylsulphate. Di-esters variants of formula I (i.e. m 2) are preferred and typically have mono- and tri-ester analogues associated with them. Such materials are particularly suitable for use in the present invention.
Especially preferred agents are di-esters of triethanolammonium methylsulphate, otherwise referred to as "TEA ester quats.". Commercial examples include Prapagen TQL, ex Clariant, and Tetranyl AHT-1, ex Kao, (both di-[hardened tallow ester] of triethanolammonium methylsulphate), AT-1 (di-[tallow ester] of triethanolammonium methylsulphate), and L5/90 (di-[palm ester] of triethanolammonium methylsulphate), both ex Kao, and Rewoquat WE15 (a di-ester of triethanolammonium methylsulphate having fatty acyl residues deriving from Clo-C2o and C16-C18 unsaturated fatty acids), ex Witco Corporation.
The second group of QACs suitable for use in the invention is represented by formula (II):
(Rl) 3N+- (cH2) n-CH-TR2 X (II) wherein each R' group is independently selected from C1-4 alkyl, hydroxyalkyl or C2-4 alkenyl groups; and wherein each R2 group is independently selected from C8-28 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). Preferably, these materials also comprise an amount of the corresponding mono-ester.
A third group of QACs suitable for use in the invention is represented by formula (III):
Cationic softening agent The cationic softening agent is generally one that is able to form a lamellar phase dispersion in water, in particular a dispersion of liposomes.
The cationic softening agent is typically a quaternary ammonium compound ("QAC"), in particular one having two C12-28 groups connected to the nitrogen head group that may independently be alkyl or alkenyl groups, preferably being connected to the nitrogen head group by at least one ester link, and more preferably by two ester links.
The average chain length of the alkyl and/or alkenyl groups is preferably at least C14 and more preferably at least C16.
It is particularly preferred that at least half of the groups have a chain length of C18. In general, the alkyl and/or alkenyl groups are predominantly linear.
A first group of QACs suitable for use in the present invention is represented by formula (I):
L (cH2) n (`I'R) ] m I
Rl -N+- [ ( cH2 ) ( OH ) ] 3-m x ( I ) wherein each R is independently selected from a Cs-3s alkyl or alkenyl group; R' represents a C1-4 alkyl, C2-4 alkenyl or a C1-4 hydroxyalkyl group; T is generally 0-C0. (i.e. an ester group bound to R via its carbon atom), but may alternatively be C0.0 (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 methylsulphate. Di-esters variants of formula I (i.e. m 2) are preferred and typically have mono- and tri-ester analogues associated with them. Such materials are particularly suitable for use in the present invention.
Especially preferred agents are di-esters of triethanolammonium methylsulphate, otherwise referred to as "TEA ester quats.". Commercial examples include Prapagen TQL, ex Clariant, and Tetranyl AHT-1, ex Kao, (both di-[hardened tallow ester] of triethanolammonium methylsulphate), AT-1 (di-[tallow ester] of triethanolammonium methylsulphate), and L5/90 (di-[palm ester] of triethanolammonium methylsulphate), both ex Kao, and Rewoquat WE15 (a di-ester of triethanolammonium methylsulphate having fatty acyl residues deriving from Clo-C2o and C16-C18 unsaturated fatty acids), ex Witco Corporation.
The second group of QACs suitable for use in the invention is represented by formula (II):
(Rl) 3N+- (cH2) n-CH-TR2 X (II) wherein each R' group is independently selected from C1-4 alkyl, hydroxyalkyl or C2-4 alkenyl groups; and wherein each R2 group is independently selected from C8-28 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). Preferably, these materials also comprise an amount of the corresponding mono-ester.
A third group of QACs suitable for use in the invention is represented by formula (III):
(Rl) 2-N+- L(cH2) n-`I'-R212 X (III) wherein each R' group is independently selected from C1-4 alkyl, or C2-4 alkenyl groups; and wherein each R2 group is 5 independently selected from C8-28 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 and hardened versions thereof.
10 A fourth group of QACs suitable for use in the invention is represented by formula (IV):
(Rl) 2-N+- (R2) 2 X (IU) wherein each R' group is independently selected from C1-4 alkyl, or C2-4 alkenyl groups; and wherein each R2 group is independently selected from C8-28 alkyl or alkenyl groups; and X- is as defined above. Preferred materials of this fourth group include di(hardened tallow)dimethylammonium chloride.
The iodine value of the softening agent is preferably from 0 to 120, more preferably from 0 to 100, and most preferably from 0 to 90. Essentially saturated material, i.e. having an iodine value of from 0 to 1, is used in especially high performing compositions. At low iodine values, the softening performance is excellent and the composition has improved resistance to autoxidation and associated odour problems upon storage.
10 A fourth group of QACs suitable for use in the invention is represented by formula (IV):
(Rl) 2-N+- (R2) 2 X (IU) wherein each R' group is independently selected from C1-4 alkyl, or C2-4 alkenyl groups; and wherein each R2 group is independently selected from C8-28 alkyl or alkenyl groups; and X- is as defined above. Preferred materials of this fourth group include di(hardened tallow)dimethylammonium chloride.
The iodine value of the softening agent is preferably from 0 to 120, more preferably from 0 to 100, and most preferably from 0 to 90. Essentially saturated material, i.e. having an iodine value of from 0 to 1, is used in especially high performing compositions. At low iodine values, the softening performance is excellent and the composition has improved resistance to autoxidation and associated odour problems upon storage.
Iodine value is defined as the number of grams of iodine absorbed per 100 g of test material. NMR spectroscopy is a suitable technique for determining the iodine value of the softening agents of the present invention, using the method described in Anal. Chem., 34, 1136 (1962) by Johnson and Shoolery and in EP 593,542 (Unilever, 1993).
The softening agent is usually present in the compositions of the invention at a level of 2% to 75% by weight of the total composition. For even greater softening effect, this level may be 8% or greater; whilst for particularly high performance, this level may be 11% or greater. The level of softening agent is most preferably 10 to 30% by weight, e.g.
The softening agent is usually present in the compositions of the invention at a level of 2% to 75% by weight of the total composition. For even greater softening effect, this level may be 8% or greater; whilst for particularly high performance, this level may be 11% or greater. The level of softening agent is most preferably 10 to 30% by weight, e.g.
12.5 to 28% by weight.
References to levels of cationic softening agent in this specification are to the total level of cationic softening agent, including all cationic components of a complex raw material that could enter the aqueous lamellar phase together. With a di-ester softening agent, it includes any associated mono-ester or tri-ester components that may be present.
Cationic cross-linked polymer The cationic cross-linked polymer is derivable from the polymerization of from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 50 to 1000 ppm of a difunctional vinyl addition monomer cross-linking agent. Preferred polymers are cross-linked copolymers of acrylamide and methacrylate cross-linked with a difuncitonal vinyl addition monomer, such as methylene bisacrylamide. Particularly preferred polymers are copolymers of from about 20 % acrylamide and about 80 % MADAM methyl chloride (MADAM is dimethyl amino ethyl methacrylate) cross-linked with from 450 to 600 ppm of methylene bisacrylamide. Such materials are commercially available from SNF Floerger under the trade names Flosoft 200 and Flosoft 222.
The polymers are used in amounts of from 0.7 to 2.5, preferably from 1 to 2 % by weight of the composition.
Supplementary Cationic Polymers The compositions may additionally comprise additional cationic polymers to assist with viscosity control. Such polymers are generally used in amounts less then the cationic cross-linked polymer described above e.g. in a weight ratio of 1:2 to 1:5 supplementary polymer:cationic cross-linked polymer. Suitable supplementary polymers include non-acrylamide based polymers such as, Rheovis CDE
commercially available from Ciba Speciality Chemicals.
Electrolyte There may be trace amounts of electrolyte e.g. NaCl, present in the raw materials used to form the fabric softening compositions. However, in accordance with the invention additional electrolyte is added. The added electrolyte is present in an amount effective to provide a viscosity in the range from 300 to 1000 mPa.s at 116 s-1 The precise concentration depends upon the electrolyte of choice and is generally in the range from 0.001 to 0.2 % by weight, preferably 0.001 to 0.1 %, more preferably 0.001 to 0.05 %
by weight of the compositions. A preferred electrolyte is CaC12 although other electrolytes, such as MgC12, NaCl etc may be used.
Fatty co-actives A preferred additional component in the compositions of the present invention is a fatty co-active. Such agents typically have a C8 to C22 hydrocarbyl chain present as part of their molecular structure. Suitable fatty co-actives include C8 to C22 fatty alcohols and C8 to C22 fatty acids; of these, the C8 to C22 fatty alcohols are most preferred. A
fatty co-active is particularly valuable in compositions comprising a QAC having a single C12-28 group connected to the nitrogen head group, such as mono-ester associated with a TEA ester quat. or a softening agent of formula II, for reasons of product stability and effectiveness.
Preferred fatty acid co-actives include hardened tallow fatty acid (available as Pristerene, range ex Uniqema).
Preferred fatty alcohol co-actives include hardened tallow alcohol (available as Stenol and Hydrenol, ex Cognis, and Laurex CS, ex Albright and Wilson) and behenyl alcohol, a C22 fatty alcohol, available as Lanette 22, ex Henkel.
References to levels of cationic softening agent in this specification are to the total level of cationic softening agent, including all cationic components of a complex raw material that could enter the aqueous lamellar phase together. With a di-ester softening agent, it includes any associated mono-ester or tri-ester components that may be present.
Cationic cross-linked polymer The cationic cross-linked polymer is derivable from the polymerization of from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 50 to 1000 ppm of a difunctional vinyl addition monomer cross-linking agent. Preferred polymers are cross-linked copolymers of acrylamide and methacrylate cross-linked with a difuncitonal vinyl addition monomer, such as methylene bisacrylamide. Particularly preferred polymers are copolymers of from about 20 % acrylamide and about 80 % MADAM methyl chloride (MADAM is dimethyl amino ethyl methacrylate) cross-linked with from 450 to 600 ppm of methylene bisacrylamide. Such materials are commercially available from SNF Floerger under the trade names Flosoft 200 and Flosoft 222.
The polymers are used in amounts of from 0.7 to 2.5, preferably from 1 to 2 % by weight of the composition.
Supplementary Cationic Polymers The compositions may additionally comprise additional cationic polymers to assist with viscosity control. Such polymers are generally used in amounts less then the cationic cross-linked polymer described above e.g. in a weight ratio of 1:2 to 1:5 supplementary polymer:cationic cross-linked polymer. Suitable supplementary polymers include non-acrylamide based polymers such as, Rheovis CDE
commercially available from Ciba Speciality Chemicals.
Electrolyte There may be trace amounts of electrolyte e.g. NaCl, present in the raw materials used to form the fabric softening compositions. However, in accordance with the invention additional electrolyte is added. The added electrolyte is present in an amount effective to provide a viscosity in the range from 300 to 1000 mPa.s at 116 s-1 The precise concentration depends upon the electrolyte of choice and is generally in the range from 0.001 to 0.2 % by weight, preferably 0.001 to 0.1 %, more preferably 0.001 to 0.05 %
by weight of the compositions. A preferred electrolyte is CaC12 although other electrolytes, such as MgC12, NaCl etc may be used.
Fatty co-actives A preferred additional component in the compositions of the present invention is a fatty co-active. Such agents typically have a C8 to C22 hydrocarbyl chain present as part of their molecular structure. Suitable fatty co-actives include C8 to C22 fatty alcohols and C8 to C22 fatty acids; of these, the C8 to C22 fatty alcohols are most preferred. A
fatty co-active is particularly valuable in compositions comprising a QAC having a single C12-28 group connected to the nitrogen head group, such as mono-ester associated with a TEA ester quat. or a softening agent of formula II, for reasons of product stability and effectiveness.
Preferred fatty acid co-actives include hardened tallow fatty acid (available as Pristerene, range ex Uniqema).
Preferred fatty alcohol co-actives include hardened tallow alcohol (available as Stenol and Hydrenol, ex Cognis, and Laurex CS, ex Albright and Wilson) and behenyl alcohol, a C22 fatty alcohol, available as Lanette 22, ex Henkel.
These co-actives may be used at from 0.1% to 10%, particularly at from 0.5 % to 5 %, and especially at from 0.75 to 2% by weight, based on the total weight of the composition.
Other coactives, such as fatty esters, and fatty N-oxides may be used together with the cationic softening agent.
When employed, they are typically present at from 0.1 to 20%
and particularly at from 0.5 to 10 %, based on the total weight of the composition.
Fatty esters that may be employed include fatty monoesters, such as glycerol monostearate, fatty sugar esters, such as those disclosed WO 01/46361 (Unilever).
Perfume The compositions of the invention typically comprise one or more perfumes. The perfume is preferably present in an amount from 0.01 to 10o by weight, more preferably 0.05 to 5 % by weight, most preferably 0.5 to 4.0 % by weight, based on the total weight of the composition.
Further Optional Ingredients The compositions of the invention may contain one or more other ingredients. Such ingredients include preservatives (e.g. bactericides), pH buffering agents, perfume carriers, fluorescers, colourants, hydrotropes, antifoaming agents, anti-redeposition agents, soil-release agents, polyelectrolytes, enzymes, optical brightening agents, anti-shrinking agents, anti-wrinkle agents, anti-spotting agents, anti-oxidants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents, ironing aids and dyes.
A particularly preferred optional ingredient is an opacifier or pearlescer. Such ingredients can serve to further augment the creamy appearance of the compositions of the invention. Suitable materials may be selected from the 10 Aquasol OP30X range (ex Rohm and Haas), the PuriColour White range (ex Ciba) and the LameSoft TM range (ex Cognis). Such materials are typically used at a level of from 0.01 to 1 %
by weight of the total composition.
Other coactives, such as fatty esters, and fatty N-oxides may be used together with the cationic softening agent.
When employed, they are typically present at from 0.1 to 20%
and particularly at from 0.5 to 10 %, based on the total weight of the composition.
Fatty esters that may be employed include fatty monoesters, such as glycerol monostearate, fatty sugar esters, such as those disclosed WO 01/46361 (Unilever).
Perfume The compositions of the invention typically comprise one or more perfumes. The perfume is preferably present in an amount from 0.01 to 10o by weight, more preferably 0.05 to 5 % by weight, most preferably 0.5 to 4.0 % by weight, based on the total weight of the composition.
Further Optional Ingredients The compositions of the invention may contain one or more other ingredients. Such ingredients include preservatives (e.g. bactericides), pH buffering agents, perfume carriers, fluorescers, colourants, hydrotropes, antifoaming agents, anti-redeposition agents, soil-release agents, polyelectrolytes, enzymes, optical brightening agents, anti-shrinking agents, anti-wrinkle agents, anti-spotting agents, anti-oxidants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents, ironing aids and dyes.
A particularly preferred optional ingredient is an opacifier or pearlescer. Such ingredients can serve to further augment the creamy appearance of the compositions of the invention. Suitable materials may be selected from the 10 Aquasol OP30X range (ex Rohm and Haas), the PuriColour White range (ex Ciba) and the LameSoft TM range (ex Cognis). Such materials are typically used at a level of from 0.01 to 1 %
by weight of the total composition.
15 Aqueous base The compositions of the invention are typically aqueous.
The aqueous base typically comprises 80 % or greater by weight of water; sometimes this figure may rise to 90 % or greater. The water in the aqueous base generally comprises 40% or greater by weight of the total formulation;
preferably this figure is 60% or greater, more preferably it is 70 % or greater.
Product Use The products of the invention are concentrates or pre-dilutes intended to be diluted with water e.g. at 3:1 to 4:1 water:concentrate, and thereafter stored and used by the customer.
The diluted compositions of the present invention may be used in the rinse cycle of a domestic laundry process.
The diluted composition is preferably used in the rinse cycle of a home textile laundering operation, where, it may be added directly to a washing machine, e.g. through a dispenser drawer or, for a top-loading washing machine, directly into the drum. The compositions may also be used in a domestic hand-washing laundry operation.
It is also possible, though less desirable, for the diluted compositions of the present invention to be used in industrial laundry operations, e.g. as a finishing agent for softening new clothes prior to sale to consumers.
Manufacture The compositions according to the invention may be prepared by any of the means known in the art. In a preferred method of manufacture of a fabric softening composition, a solution of the polymer is prepared independently of a dispersion of the cationic fabric softening agent and the separate components are then mixed to provide a composition according to the invention. In practice, the polymer solution is generally post-dosed into the dispersion with mixing at ambient temperature followed by the electrolyte to adjust the viscosity. Alternatively, after the dispersion of the pre-melted cationic fabric softening agent into an aqueous base, the polymer solution can be added hot using methods known in the art.
Examples The invention is further illustrated by the particular (non-limiting) examples described below. All amounts indicated are weight percentages of the total composition, unless otherwise indicated.
Example 1 The following formulations were prepared.
Component Formulation Control Control Control Control DHTDMAC (1) 15.2 15.2 15.2 15.2 15.2 Pristerine 2.6 2.6 2.6 2.6 2.6 4989 (2) Flosoft 200 (as supplied, 50 % 1.5 1.5 0 0 0.5 Activity) (3) CaC12 0.02 0 0 0.07 0 Formalin 0.2 0.2 0.2 0.2 0.2 Silicone AF9000 0.25 0.25 0.25 0.25 0.25 Perfume 0.9 0.9 0.9 0.9 0.9 Dye 0.04 0.04 0.04 0.04 0.04 Water 80.8 80.8 80.8 80.8 80.8 Neat viscosity 728 1010 314 13 609 (mPas) Viscosity after 57 55 2 1 10 1:3 dilution (1) dihardened tallow dimethyl ammonium chloride(75 %
activity)under the trade name Noramium M2SH ex Ceca (2) hardened tallow fatty acid ex Uniqema (3) Flosoft 200 is commercially available from SNF
Floerger.
Viscosities were measured on a Haake VT550 rheometer at 116 s-1 (at 25'C) Method of Preparation A concentrate base was prepared i.e. full formulation without polymer and electrolyte. The polymer was dosed as received with mixing using an overhead stirrer. CaC12 was then added as a 1.7 % solution, with mixing continued for ca 30 min.
Dilution was performed by taking 500g of product and diluting to 2000g with ambient tap water, i.e. a 1:3 dilution.
The aqueous base typically comprises 80 % or greater by weight of water; sometimes this figure may rise to 90 % or greater. The water in the aqueous base generally comprises 40% or greater by weight of the total formulation;
preferably this figure is 60% or greater, more preferably it is 70 % or greater.
Product Use The products of the invention are concentrates or pre-dilutes intended to be diluted with water e.g. at 3:1 to 4:1 water:concentrate, and thereafter stored and used by the customer.
The diluted compositions of the present invention may be used in the rinse cycle of a domestic laundry process.
The diluted composition is preferably used in the rinse cycle of a home textile laundering operation, where, it may be added directly to a washing machine, e.g. through a dispenser drawer or, for a top-loading washing machine, directly into the drum. The compositions may also be used in a domestic hand-washing laundry operation.
It is also possible, though less desirable, for the diluted compositions of the present invention to be used in industrial laundry operations, e.g. as a finishing agent for softening new clothes prior to sale to consumers.
Manufacture The compositions according to the invention may be prepared by any of the means known in the art. In a preferred method of manufacture of a fabric softening composition, a solution of the polymer is prepared independently of a dispersion of the cationic fabric softening agent and the separate components are then mixed to provide a composition according to the invention. In practice, the polymer solution is generally post-dosed into the dispersion with mixing at ambient temperature followed by the electrolyte to adjust the viscosity. Alternatively, after the dispersion of the pre-melted cationic fabric softening agent into an aqueous base, the polymer solution can be added hot using methods known in the art.
Examples The invention is further illustrated by the particular (non-limiting) examples described below. All amounts indicated are weight percentages of the total composition, unless otherwise indicated.
Example 1 The following formulations were prepared.
Component Formulation Control Control Control Control DHTDMAC (1) 15.2 15.2 15.2 15.2 15.2 Pristerine 2.6 2.6 2.6 2.6 2.6 4989 (2) Flosoft 200 (as supplied, 50 % 1.5 1.5 0 0 0.5 Activity) (3) CaC12 0.02 0 0 0.07 0 Formalin 0.2 0.2 0.2 0.2 0.2 Silicone AF9000 0.25 0.25 0.25 0.25 0.25 Perfume 0.9 0.9 0.9 0.9 0.9 Dye 0.04 0.04 0.04 0.04 0.04 Water 80.8 80.8 80.8 80.8 80.8 Neat viscosity 728 1010 314 13 609 (mPas) Viscosity after 57 55 2 1 10 1:3 dilution (1) dihardened tallow dimethyl ammonium chloride(75 %
activity)under the trade name Noramium M2SH ex Ceca (2) hardened tallow fatty acid ex Uniqema (3) Flosoft 200 is commercially available from SNF
Floerger.
Viscosities were measured on a Haake VT550 rheometer at 116 s-1 (at 25'C) Method of Preparation A concentrate base was prepared i.e. full formulation without polymer and electrolyte. The polymer was dosed as received with mixing using an overhead stirrer. CaC12 was then added as a 1.7 % solution, with mixing continued for ca 30 min.
Dilution was performed by taking 500g of product and diluting to 2000g with ambient tap water, i.e. a 1:3 dilution.
Example 2 The following formulation was prepared and tested as in Example 1 Ingredients % as is DHTDMAC (1) 15.2 Pristerene 4989 2.6 Flosoft 222 (2) 2.3 CaC12 0.1 Formalin 0.2 Silicone AF 0.25 Perfume 0.9 Dye Present Water to 100 Viscosity Neat 702 Viscosity 69 dilute (1) as in Example 1 (2) Flosoft 222 is commercially available from SNF
Floerger.
Floerger.
Claims (10)
1. A stable, concentrated (pre-dilute) aqueous fabric softening composition having a viscosity of from 300 to 1000, preferably 300 to 850, more preferably 400 to 800 mPa.s at 116 s-1 which composition is capable of being diluted with water in a 3:1 weight ratio of water : softening composition such that the resulting diluted softening composition is physically stable and has a viscosity of from 40 to 100 mPa.s at116 s-1, preferable 50 to 90 mPa.s at 116 s-1, the composition comprising a) a cationic fabric softener b) 0.7 to 2.5 % by weight of a cationic cross-linked polymer that is desirable from the polymerization of from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 50 to 1000 ppm, preferably 350 to 1000 ppm, more preferably 500 to 1000 ppm of a difunctional vinyl addition monomer cross-linking agent, c) from 0.001 to 0.2 by weight of electrolyte.
2. An aqueous fabric softening composition as claimed in claim 1 in which the fabric softening compound is a quaternary ammonium compound.
3. An aqueous fabric softening composition as claimed in claim 2 in which the fabric softening compound comprises 2 C12 - C28 alkyl or alkenyl groups.
4. An aqueous fabric softening composition as claimed in claim 3 in which the fabric softening compound comprises dihardened tallow dimethyl ammonium chloride.
5. An aqueous fabric softening compositions as claimed in any preceding claim in which the fabric softening compound is present in an amount of from 5 to 30 % by weight of the composition.
6. An aqueous fabric softening compositions as claimed in claim 5 in which the fabric softening compound is present in an amount of from 10 to 25 % by weight of the composition.
7. An aqueous fabric softening composition as claimed in any preceding claim which additionally comprises a fatty alcohol or fatty acid containing from 8 to 22 carbon atoms.
8. An aqueous fabric softening composition as claimed in claim 7 which comprises from 1 to 5 % by weight of fatty acid.
9. An aqueous fabric softening composition as claimed in any preceding claim in which the electrolyte is CaCl2.
10. An aqueous fabric softening composition as claimed in any preceding claim in which the electrolyte is present in an amount in the range from 0.001 to 0.1 %
by weight of the composition.
by weight of the composition.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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GBGB0611486.2A GB0611486D0 (en) | 2006-06-09 | 2006-06-09 | Fabric softener composition |
GB0611486.2 | 2006-06-09 | ||
PCT/EP2007/055611 WO2007141310A1 (en) | 2006-06-09 | 2007-06-06 | Fabric softener composition |
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CA002653972A Abandoned CA2653972A1 (en) | 2006-06-09 | 2007-06-06 | Fabric softener composition |
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US (1) | US20070293413A1 (en) |
EP (1) | EP2029712B1 (en) |
CN (1) | CN101466820B (en) |
BR (1) | BRPI0712453B1 (en) |
CA (1) | CA2653972A1 (en) |
ES (1) | ES2619186T3 (en) |
GB (1) | GB0611486D0 (en) |
WO (1) | WO2007141310A1 (en) |
ZA (1) | ZA200810286B (en) |
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---|---|---|---|---|
ES2412782T3 (en) * | 2009-01-06 | 2013-07-12 | Unilever Nv | Improvements related to textile conditioners |
PL2399979T5 (en) * | 2010-06-24 | 2022-05-30 | The Procter And Gamble Company | Soluble unit dose articles comprising a cationic polymer |
EP2723846A1 (en) * | 2011-06-27 | 2014-04-30 | The Procter and Gamble Company | Stable polymer containing two phase systems |
US9080130B2 (en) | 2012-05-21 | 2015-07-14 | The Procter & Gamble Company | Fabric treatment compositions |
EP2978833B1 (en) | 2013-03-25 | 2021-02-17 | Rhodia Operations | Fabric softener |
JP6445128B2 (en) | 2014-07-23 | 2018-12-26 | ザ プロクター アンド ギャンブル カンパニー | Treatment composition |
JP6542350B2 (en) | 2014-07-23 | 2019-07-10 | ザ プロクター アンド ギャンブル カンパニーThe Procter & Gamble Company | Fabric care and home care treatment compositions |
WO2016014734A1 (en) | 2014-07-23 | 2016-01-28 | The Procter & Gamble Company | Fabric and home care treatment composition |
WO2016014733A1 (en) | 2014-07-23 | 2016-01-28 | The Procter & Gamble Company | Fabric and home care treatment compositions |
US20160024430A1 (en) | 2014-07-23 | 2016-01-28 | The Procter & Gamble Company | Treatment compositions |
US20160024432A1 (en) | 2014-07-23 | 2016-01-28 | The Procter & Gamble Company | Treatment compositions |
US10519402B2 (en) | 2014-07-23 | 2019-12-31 | The Procter & Gamble Company | Treatment compositions |
EP3215095A1 (en) | 2014-11-06 | 2017-09-13 | The Procter and Gamble Company | Zonal patterned apertured webs, laminates, and methods for making the same |
US11261402B2 (en) | 2016-01-25 | 2022-03-01 | The Procter & Gamble Company | Treatment compositions |
EP3408365A1 (en) | 2016-01-25 | 2018-12-05 | The Procter and Gamble Company | Treatment compositions |
CN116764558A (en) | 2016-09-16 | 2023-09-19 | 国际香料和香精公司 | Microcapsule compositions stabilized with viscosity control agents |
US20180085291A1 (en) | 2016-09-28 | 2018-03-29 | International Flavors & Fragrances Inc. | Microcapsule compositions containing amino silicone |
EP4335420A3 (en) | 2017-02-16 | 2024-05-29 | The Procter & Gamble Company | Absorbent articles with substrates having repeating patterns of apertures comprising a plurality of repeat units |
CN115551983A (en) | 2020-05-27 | 2022-12-30 | 联合利华知识产权控股有限公司 | Dilutable fabric conditioner compositions |
BR112022022878A2 (en) | 2020-05-27 | 2022-12-20 | Unilever Ip Holdings B V | SOLID FABRIC CONDITIONER COMPOSITION, METHOD FOR HOME PREPARATION OF A LIQUID FABRIC CONDITIONER COMPOSITION, LIQUID FABRIC SOFTENER COMPOSITION AND USE OF A SOLID FABRIC TREATMENT COMPOSITION |
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BR112023006098A2 (en) * | 2020-10-13 | 2023-05-09 | Unilever Ip Holdings B V | PREMIX POWDER FOR FORMING A LAUNDRY STABLE LIQUID DETERGENT COMPOSITION, PACKAGED PRODUCT, METHOD FOR FORMING A LIQUID LAUNDRY COMPOSITION AND LIQUID LAUNDRY COMPOSITION |
CN116507707A (en) | 2020-11-18 | 2023-07-28 | 联合利华知识产权控股有限公司 | Fabric conditioner |
EP4373905A1 (en) | 2021-07-20 | 2024-05-29 | Unilever IP Holdings B.V. | Fabric conditioner composition |
EP4377430A1 (en) | 2021-07-26 | 2024-06-05 | Unilever IP Holdings B.V. | Method of producing a fabric conditioner |
WO2023170120A1 (en) | 2022-03-10 | 2023-09-14 | Unilever Ip Holdings B.V. | Concentrated fabric conditioner |
WO2023170124A1 (en) | 2022-03-10 | 2023-09-14 | Unilever Ip Holdings B.V. | Concentrated fabric conditioner |
GB202209432D0 (en) | 2022-06-28 | 2022-08-10 | Croda Int Plc | Composition, home care formulations, method and use |
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US6864223B2 (en) * | 2000-12-27 | 2005-03-08 | Colgate-Palmolive Company | Thickened fabric conditioners |
PL377316A1 (en) * | 2002-12-16 | 2006-01-23 | Colgate-Palmolive Company | Concentrated fabric softener compositions containing rheology modifiers to maintain stability and flowability upon dilution |
US6949500B2 (en) * | 2002-12-16 | 2005-09-27 | Colgate-Palmolive Company | Fabric softener compositions containing a mixture of cationic polymers as rheology modifiers |
-
2006
- 2006-06-09 GB GBGB0611486.2A patent/GB0611486D0/en not_active Ceased
-
2007
- 2007-06-06 EP EP07765335.0A patent/EP2029712B1/en active Active
- 2007-06-06 CA CA002653972A patent/CA2653972A1/en not_active Abandoned
- 2007-06-06 ES ES07765335.0T patent/ES2619186T3/en active Active
- 2007-06-06 WO PCT/EP2007/055611 patent/WO2007141310A1/en active Application Filing
- 2007-06-06 BR BRPI0712453A patent/BRPI0712453B1/en active IP Right Grant
- 2007-06-06 CN CN2007800215459A patent/CN101466820B/en active Active
- 2007-06-07 US US11/811,340 patent/US20070293413A1/en not_active Abandoned
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2008
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BRPI0712453B1 (en) | 2017-03-28 |
BRPI0712453A2 (en) | 2012-10-16 |
ES2619186T3 (en) | 2017-06-23 |
EP2029712A1 (en) | 2009-03-04 |
CN101466820A (en) | 2009-06-24 |
CN101466820B (en) | 2013-07-17 |
GB0611486D0 (en) | 2006-07-19 |
US20070293413A1 (en) | 2007-12-20 |
EP2029712B1 (en) | 2016-12-28 |
WO2007141310A1 (en) | 2007-12-13 |
ZA200810286B (en) | 2012-01-25 |
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EEER | Examination request | ||
FZDE | Discontinued |
Effective date: 20121119 |