WO2024055289A1 - Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol - Google Patents
Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol Download PDFInfo
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- WO2024055289A1 WO2024055289A1 PCT/CN2022/119319 CN2022119319W WO2024055289A1 WO 2024055289 A1 WO2024055289 A1 WO 2024055289A1 CN 2022119319 W CN2022119319 W CN 2022119319W WO 2024055289 A1 WO2024055289 A1 WO 2024055289A1
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- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- PVEOYINWKBTPIZ-UHFFFAOYSA-N but-3-enoic acid Chemical compound OC(=O)CC=C PVEOYINWKBTPIZ-UHFFFAOYSA-N 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 229940097362 cyclodextrins Drugs 0.000 description 1
- VWTINHYPRWEBQY-UHFFFAOYSA-N denatonium Chemical compound [O-]C(=O)C1=CC=CC=C1.C=1C=CC=CC=1C[N+](CC)(CC)CC(=O)NC1=C(C)C=CC=C1C VWTINHYPRWEBQY-UHFFFAOYSA-N 0.000 description 1
- 229960001610 denatonium benzoate Drugs 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229940105990 diglycerin Drugs 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- ZWWQRMFIZFPUAA-UHFFFAOYSA-N dimethyl 2-methylidenebutanedioate Chemical compound COC(=O)CC(=C)C(=O)OC ZWWQRMFIZFPUAA-UHFFFAOYSA-N 0.000 description 1
- LDCRTTXIJACKKU-ONEGZZNKSA-N dimethyl fumarate Chemical compound COC(=O)\C=C\C(=O)OC LDCRTTXIJACKKU-ONEGZZNKSA-N 0.000 description 1
- 229960004419 dimethyl fumarate Drugs 0.000 description 1
- LDCRTTXIJACKKU-ARJAWSKDSA-N dimethyl maleate Chemical compound COC(=O)\C=C/C(=O)OC LDCRTTXIJACKKU-ARJAWSKDSA-N 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- 229940113120 dipropylene glycol Drugs 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 1
- 235000019414 erythritol Nutrition 0.000 description 1
- 229940009714 erythritol Drugs 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000002193 fatty amides Chemical class 0.000 description 1
- 150000002194 fatty esters Chemical class 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229940050411 fumarate Drugs 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- FBPFZTCFMRRESA-GUCUJZIJSA-N galactitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-GUCUJZIJSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 125000004051 hexyl group Chemical class [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000905 isomalt Substances 0.000 description 1
- 235000010439 isomalt Nutrition 0.000 description 1
- HPIGCVXMBGOWTF-UHFFFAOYSA-N isomaltol Natural products CC(=O)C=1OC=CC=1O HPIGCVXMBGOWTF-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010412 laundry washing Methods 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 description 1
- 239000000845 maltitol Substances 0.000 description 1
- 235000010449 maltitol Nutrition 0.000 description 1
- 229940035436 maltitol Drugs 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- NKHAVTQWNUWKEO-NSCUHMNNSA-N monomethyl fumarate Chemical compound COC(=O)\C=C\C(O)=O NKHAVTQWNUWKEO-NSCUHMNNSA-N 0.000 description 1
- 229940005650 monomethyl fumarate Drugs 0.000 description 1
- DFPMSGMNTNDNHN-ZPHOTFPESA-N naringin Chemical compound O[C@@H]1[C@H](O)[C@@H](O)[C@H](C)O[C@H]1O[C@H]1[C@H](OC=2C=C3O[C@@H](CC(=O)C3=C(O)C=2)C=2C=CC(O)=CC=2)O[C@H](CO)[C@@H](O)[C@@H]1O DFPMSGMNTNDNHN-ZPHOTFPESA-N 0.000 description 1
- 229940052490 naringin Drugs 0.000 description 1
- 229930019673 naringin Natural products 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229940117969 neopentyl glycol Drugs 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 1
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 description 1
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 1
- 239000001816 polyoxyethylene sorbitan tristearate Substances 0.000 description 1
- 235000010988 polyoxyethylene sorbitan tristearate Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229940068977 polysorbate 20 Drugs 0.000 description 1
- 229940113124 polysorbate 60 Drugs 0.000 description 1
- 229940099511 polysorbate 65 Drugs 0.000 description 1
- 229940068968 polysorbate 80 Drugs 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- 239000001508 potassium citrate Substances 0.000 description 1
- 229960002635 potassium citrate Drugs 0.000 description 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 1
- 235000011082 potassium citrates Nutrition 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229960001811 quinine hydrochloride Drugs 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- HEBKCHPVOIAQTA-ZXFHETKHSA-N ribitol Chemical compound OC[C@H](O)[C@H](O)[C@H](O)CO HEBKCHPVOIAQTA-ZXFHETKHSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000011083 sodium citrates Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229960002920 sorbitol Drugs 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940013883 sucrose octaacetate Drugs 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
- C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
- C11D17/043—Liquid or thixotropic (gel) 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
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
-
- 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
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2041—Dihydric alcohols
- C11D3/2044—Dihydric alcohols linear
-
- 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
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2065—Polyhydric alcohols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- 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
-
- 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/12—Soft surfaces, e.g. textile
Definitions
- the present invention relates to water-soluble unit dose articles comprising a liquid laundry detergent composition which comprises polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons.
- the water-soluble unit dose article comprises the water-soluble film shaped such that the unit dose article comprises at least one internal compartment surrounded by the water-soluble film.
- Preferred film materials are preferably polymeric materials.
- the film material can, for example, be obtained by casting, blow-moulding, extrusion or blown extrusion of the polymeric material, as known in the art.
- requirements for detergent unit dose articles include stability, physical properties for films and “weeping” performance.
- the liquid contained in the detergent unit dose articles need to be stable during the shelf life, i.e., no phase separation or flocculation.
- “weeping” phenomenon occurs during the storage of the unit dose articles, i.e., some minor liquid composition comes out of the unit dose articles through the film.
- High level of “weeping” is not acceptable for consumers.
- the film material need to have appropriate physical properties. Particularly, swelling performance of film materials may be important.
- the film material may swell or de-swell after it contacts the liquid contained in the unit dose articles due to the interaction between the film material and some ingredients in the liquid. Too much swelling gives floppy unit dose articles which are not desirable for consumers and too much de-swelling renders unit dose articles sensitive to breakage. All these aspects need to be considered in the design of unit dose articles in order to achieve an overall good performance in all these aspects, e.g. an improved balance among these aspects.
- unit dose articles contain a non-aqueous solvent (such as monoalcohols, diols, polyols, glycol ethers) to disperse or suspend active ingredients. It was surprisingly found that a water-soluble unit dose article can provide an improved balance among the aspects as mentioned above when such water-soluble unit dose article is formed by using a liquid detergent composition comprising polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons in combination with the non-aqueous solvent.
- a non-aqueous solvent such as monoalcohols, diols, polyols, glycol ethers
- the present invention in one aspect relates to a water-soluble unit dose article comprising a water-soluble film and a liquid laundry detergent composition wrapped with the water-soluble film, wherein the liquid laundry detergent composition comprises from 1%to 25%, by weight of the composition, of polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons, and from 0.1%to 30%of a non-aqueous solvent, by weight of the composition.
- the terms “comprise” , “comprises” , “comprising” , “include” , “includes” , “including” , “contain” , “contains” , and “containing” are meant to be non-limiting, i.e., other steps and other ingredients which do not affect the end of result can be added.
- the above terms encompass the terms “consisting of” and “consisting essentially of” .
- composition is “substantially free” of a specific ingredient, it is meant that the composition comprises less than a trace amount, alternatively less than 0.1%, alternatively less than 0.01%, alternatively less than 0.001%, by weight of the composition, of the specific ingredient.
- laundry detergent composition means a composition for cleaning soiled materials, including fabrics. Such compositions may be used as a pre-laundering treatment, a post-laundering treatment, or may be added during the rinse or wash cycle of the laundering operation.
- liquid laundry detergent composition herein refers to compositions that are in a form selected from the group consisting of pourable liquid, gel, cream, and combinations thereof.
- unit dose laundry detergent composition herein refers to a water-soluble pouch containing a certain volume of liquid wrapped with a water-soluble film.
- non-aqueous solvent means any non-aqueous solvent except the polyethylene glycol contained in the water-soluble unit dose article according to the present disclosure (e.g., the polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons) .
- alkyl means a hydrocarbyl moiety which is branched or unbranched, substituted or unsubstituted. Included in the term “alkyl” is the alkyl portion of acyl groups.
- washing solution refers to the typical amount of aqueous solution used for one cycle of laundry washing, preferably from 1 L to 50 L, alternatively from 1 L to 20 L for hand washing and from 10 L to 50 L for machine washing.
- oiled fabric is used non-specifically and may refer to any type of natural or artificial fibers, including natural, artificial, and synthetic fibers, such as, but not limited to, cotton, linen, wool, polyester, nylon, silk, acrylic, and the like, as well as various blends and combinations.
- the present invention discloses a water-soluble unit dose article comprising a water-soluble film and a liquid laundry detergent composition. Particularly, the liquid laundry detergent composition is wrapped with the water-soluble film.
- the water-soluble film and the liquid detergent composition are described in more detail below.
- the water-soluble unit dose article comprises the water-soluble film shaped such that the unit-dose article comprises at least one internal compartment surrounded by the water-soluble film.
- the unit dose article may comprise a first water-soluble film and a second water-soluble film sealed to one another such to define the internal compartment.
- the water-soluble unit dose article is constructed such that the detergent composition does not leak out of the compartment during storage. However, upon addition of the water-soluble unit dose article to water, the water-soluble film dissolves and releases the contents of the internal compartment into the wash liquor.
- the compartment should be understood as meaning a closed internal space within the unit dose article, which holds the detergent composition.
- a first water-soluble film may be shaped to comprise an open compartment into which the detergent composition is added.
- a second water-soluble film is then laid over the first film in such an orientation as to close the opening of the compartment. The first and second films are then sealed together along a seal region.
- the unit dose article may comprise more than one compartment, even at least two compartments, or even at least three compartments.
- the compartments may be arranged in superposed orientation, i.e. one positioned on top of the other. In such an orientation the unit dose article will comprise three films, top, middle and bottom.
- the compartments may be positioned in a side-by-side orientation, i.e. one orientated next to the other.
- the compartments may even be orientated in a ‘tyre and rim’ arrangement, i.e. a first compartment is positioned next to a second compartment, but the first compartment at least partially surrounds the second compartment, but does not completely enclose the second compartment.
- one compartment may be completely enclosed within another compartment.
- the unit dose article comprises at least two compartments, one of the compartments may be smaller than the other compartment.
- the unit dose article comprises at least three compartments, two of the compartments may be smaller than the third compartment, and preferably the smaller compartments are superposed on the larger compartment.
- the superposed compartments preferably are orientated side-by-side.
- the detergent composition according to the present invention may be comprised in at least one of the compartments. It may for example be comprised in just one compartment, or may be comprised in two compartments, or even in three compartments.
- Each compartment may comprise the same or different compositions.
- the different compositions could all be in the same form, or they may be in different forms.
- the water-soluble unit dose article may comprise at least two internal compartments, wherein the liquid laundry detergent composition is comprised in at least one of the compartments, preferably wherein the unit dose article comprises at least three compartments, wherein the detergent composition is comprised in at least one of the compartments.
- the water-soluble film of the present invention is soluble or dispersible in water.
- the water-soluble film preferably has a thickness of from 20 to 150 micron, preferably 35 to 125 micron, even more preferably 50 to 110 micron, most preferably about 76 micron.
- the film has a water-solubility of at least 50%, preferably at least 75%or even at least 95%, as measured by the method set out here after using a glass-filter with a maximum pore size of 20 microns: 5 grams ⁇ 0.1 gram of film material is added in a pre-weighed 3L beaker and 2L ⁇ 5ml of distilled water is added. This is stirred vigorously on a magnetic stirrer, Labline model No. 1250 or equivalent and 5 cm magnetic stirrer, set at 600 rpm, for 30 minutes at 30°C. Then, the mixture is filtered through a folded qualitative sintered-glass filter with a pore size as defined above (max. 20 micron) . The water is dried off from the collected filtrate by any conventional method, and the weight of the remaining material is determined (which is the dissolved or dispersed fraction) . Then, the percentage solubility or dispersability can be calculated.
- the water-soluble film material may be obtained by casting, blow-moulding, extrusion or blown extrusion of the polymeric material, as known in the art.
- the water-soluble film comprises polyvinylalcohol.
- the polyvinylalcohol may be present between 50%and 95%, preferably between 55%and 90%, more preferably between 60%and 80%by weight of the water soluble film.
- the polyvinylalcohol preferably comprises polyvinyl alcohol homopolymer, polyvinylalcohol copolymer, or a mixture thereof.
- the water-soluble film comprises a blend of polyvinylalcohol homopolymers and/or anionic polyvinylalcohol copolymers, preferably wherein the polyvinylalcohol copolymers are selected from sulphonated and carboxylated anionic polyvinylalcohol copolymers especially carboxylated anionic polyvinylalcohol copolymers, most preferably the water-soluble film comprises a blend of a polyvinylalcohol homopolymer and a carboxylated anionic polyvinylalcohol copolymer, or a blend of polyvinylalcohol homopolymers.
- the polyvinylalcohol comprises an anionic polyvinyl alcohol copolymer, most preferably a carboxylated anionic polyvinylalcohol copolymer.
- the polyvinylalcohol in the water soluble film is a blend of a polyvinylalcohol homopolymer and a carboxylated anionic polyvinylalcohol copolymer, the homopolymer and the anionic copolymer are present in a relative weight ratio of 90/10 to 10/90, preferably 80/20 to 20/80, more preferably 70/30 to 50/50.
- the term “homopolymer” generally includes polymers having a single type of monomeric repeating unit (e.g., a polymeric chain comprising or consisting of a single monomeric repeating unit) .
- the term “homopolymer” further includes copolymers having a distribution of vinyl alcohol monomer units and optionally vinyl acetate monomer units, depending on the degree of hydrolysis (e.g., a polymeric chain comprising or consisting of vinyl alcohol and vinyl acetate monomer units) .
- a polyvinylalcohol homopolymer can include only vinyl alcohol units.
- copolymer generally includes polymers having two or more types of monomeric repeating units (e.g., a polymeric chain comprising or consisting of two or more different monomeric repeating units, whether as random copolymers, block copolymers, etc. ) .
- copolymer (or “polyvinylalcohol copolymer” ) further includes copolymers having a distribution of vinyl alcohol monomer units and vinyl acetate monomer units, depending on the degree of hydrolysis, as well as at least one other type of monomeric repeating unit (e.g., a ter- (or higher) polymeric chain comprising or consisting of vinyl alcohol monomer units, vinyl acetate monomer units, and one or more other monomer units, for example anionic monomer units) .
- monomeric repeating unit e.g., a ter- (or higher) polymeric chain comprising or consisting of vinyl alcohol monomer units, vinyl acetate monomer units, and one or more other monomer units, for example anionic monomer units
- a polyvinylalcohol copolymer can include a copolymer having vinyl alcohol units and one or more other monomer units, but no vinyl acetate units.
- anionic copolymer includes copolymers having an anionic monomer unit comprising an anionic moiety.
- anionic monomer units which can be used for the anionic polyvinyl alcohol co-polymer include the vinyl polymerization units corresponding to monocarboxylic acid vinyl monomers, their esters and anhydrides, dicarboxylic monomers having a polymerizable double bond, their esters and anhydrides, vinyl sulfonic acid monomers, and alkali metal salts of any of the foregoing.
- suitable anionic monomer units include the vinyl polymerization units corresponding to vinyl anionic monomers including vinyl acetic acid, maleic acid, monoalkyl maleate, dialkyl maleate, monomethyl maleate, dimethyl maleate, maleic anyhydride, fumaric acid, monoalkyl fumarate, dialkyl fumarate, monomethyl fumarate, dimethyl fumarate, fumaric anyhydride, itaconic acid, monomethyl itaconate, dimethyl itaconate, itaconic anhydride, vinyl sulfonic acid, allyl sulfonic acid, ethylene sulfonic acid, 2-acrylamido-1-methylpropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methylacrylamido-2-methylpropanesulfonic acid, 2-sufoethyl acrylate, alkali metal salts of the foregoing (e.g., sodium, potassium, or other alkali metal salts) , esters of the for
- the anionic monomer may be one or more acrylamido methylpropanesulfonic acids (e.g., 2-acrylamido-1-methylpropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methylacrylamido-2-methylpropanesulfonic acid) , alkali metal salts thereof (e.g., sodium salts) , and combinations thereof.
- the anionic moiety of the first anionic monomer unit is selected from a sulphonate, a carboxylate, or a mixture thereof, more preferably a carboxylate, most preferably an acrylate, a methacrylate, a maleate, or a mixture thereof.
- the anionic monomer unit is present in the anionic polyvinyl alcohol copolymer in an average amount in a range of between 1 mol. %and 10 mol. %, preferably between 2 mol. %and 5 mol. %.
- the polyvinyl alcohol, and/or in case of polyvinylalcohol blends the individual polyvinylalcohol polymers have an average viscosity ( ⁇ 1) in a range of between 4 mPa. s and 30 mPa. s, preferably between 10mPa. s and 25 mPa. s, measured as a 4%polyvinyl alcohol copolymer solution in demineralized water at 20 degrees C.
- the viscosity of a polyvinyl alcohol polymer is determined by measuring a freshly made solution using a Brookfield LV type viscometer with UL adapter as described in British Standard EN ISO 15023-2: 2006 Annex E Brookfield Test method. It is international practice to state the viscosity of 4%aqueous polyvinyl alcohol solutions at 20 °C. It is well known in the art that the viscosity of an aqueous water-soluble polymer solution (polyvinylalcohol or otherwise) is correlated with the weight-average molecular weight of the same polymer, and often the viscosity is used as a proxy for weight-average molecular weight.
- the weight-average molecular weight of the polyvinylalcohol can be in a range of 30,000 to 175,000, or 30,000 to 100,000, or 55,000 to 80,000.
- the polyvinyl alcohol, and/or in case of polyvinylalcohol blends the individual polyvinylalcohol polymers have an average degree of hydrolysis in a range of between 75%and 99%, preferably between 80%and 95%, most preferably between 85%and 95%.
- a suitable test method to measure the degree of hydrolysis is as according to standard method JIS K6726.
- the water-soluble film comprises a non-aqueous plasticizer.
- the non-aqueous plasticizer is selected from polyols, sugar alcohols, and mixtures thereof.
- Suitable polyols include polyols selected from the group consisting of glycerol, diglycerin, ethylene glycol, diethylene glycol, triethyleneglycol, tetraethylene glycol, polyethylene glycols up to 400 molecular weight, neopentyl glycol, 1, 2-propylene glycol, 1, 3-propanediol, dipropylene glycol, polypropylene glycol, 2-methyl-1, 3-propanediol, trimethylolpropane and polyether polyols, or a mixture thereof.
- Suitable sugar alcohols include sugar alcohols selected from the group consisting of isomalt, maltitol, sorbitol, xylitol, erythritol, adonitol, dulcitol, pentaerythritol and mannitol, or a mixture thereof.
- the non-aqueous plasticizer is selected from glycerol, 1, 2-propanediol, dipropylene glycol, 2-methyl-1, 3-propanediol, trimethylolpropane, triethyleneglycol, polyethyleneglycol, sorbitol, or a mixture thereof, most preferably selected from glycerol, sorbitol, trimethylolpropane, dipropylene glycol, and mixtures thereof.
- One particularly suitable plasticizer system includes a blend of glycerol, sorbitol and trimethylol propane.
- Another particularly suitable plasticizer system includes a blend of glycerin, dipropylene glycol, and sorbitol.
- the film comprises between 5%and 50%, preferably between 10%and 40%, more preferably between 20%and 30%by weight of the film of the non-aqueous plasticizer.
- the water-soluble film comprises a surfactant.
- the water-soluble film comprises a surfactant in an amount between 0.1%and 2.5%, preferably between 1%and 2%by weight of the water-soluble film.
- Suitable surfactants can include the nonionic, cationic, anionic and zwitterionic classes.
- Suitable surfactants include, but are not limited to, polyoxyethylenated polyoxypropylene glycols, alcohol ethoxylates, alkylphenol ethoxylates, tertiary acetylenic glycols and alkanolamides (nonionics) , polyoxyethylenated amines, quaternary ammonium salts and quaternized polyoxyethylenated amines (cationics) , and amine oxides, N-alkylbetaines and sulfobetaines (zwitterionics) .
- Suitable surfactants include dioctyl sodium sulfosuccinate, lactylated fatty acid esters of glycerol and propylene glycol, lactylic esters of fatty acids, sodium alkyl sulfates, polysorbate 20, polysorbate 60, polysorbate 65, polysorbate 80, lecithin, acetylated fatty acid esters of glycerol and propylene glycol, and acetylated esters of fatty acids, and combinations thereof.
- the water-soluble film according to the invention comprises lubricants /release agents.
- Suitable lubricants/release agents can include, but are not limited to, fatty acids and their salts, fatty alcohols, fatty esters, fatty amines, fatty amine acetates and fatty amides.
- Preferred lubricants/release agents are fatty acids, fatty acid salts, and fatty amine acetates.
- the amount of lubricant/release agent in the water-soluble film is in a range of from 0.02%to 1.5%, preferably from 0.1%to 1%by weight of the water-soluble film.
- the water-soluble film comprises fillers, extenders, antiblocking agents, detackifying agents or a mixture thereof.
- suitable fillers, extenders, antiblocking agents, detackifying agents or a mixture thereof include, but are not limited to, starches, modified starches, crosslinked polyvinylpyrrolidone, crosslinked cellulose, microcrystalline cellulose, silica, metallic oxides, calcium carbonate, talc and mica.
- Preferred materials are starches, modified starches and silica.
- the amount of filler, extender, antiblocking agent, detackifying agent or mixture thereof in the water-soluble film is in a range of from 0.1%to 25%, preferably from 1%to 10%, more preferably from 2%to 8%, most preferably from 3%to 5%by weight of the water-soluble film.
- one preferred range for a suitable filler, extender, antiblocking agent, detackifying agent or mixture thereof is from 0.1%to 1%, preferably 4%, more preferably 6%, even more preferably from 1%to 4%, most preferably from 1%to 2.5%, by weight of the water-soluble film.
- the water-soluble film according to the invention has a residual moisture content of at least 4%, more preferably in a range of from 4%to 15%, even more preferably of from 5%to 10%by weight of the water-soluble film as measured by Karl Fischer titration.
- Preferred films exhibit good dissolution in cold water, meaning unheated distilled water.
- Preferably such films exhibit good dissolution at temperatures of 24°C, even more preferably at 10°C.
- good dissolution it is meant that the film exhibits water-solubility of at least 50%, preferably at least 75%or even at least 95%, as measured by the method set out here after using a glass-filter with a maximum pore size of 20 microns, described above.
- Preferred films include those supplied by Monosol under the trade references M8630, M8900, M8779, M8310.
- the film may be opaque, transparent or translucent.
- the film may comprise a printed area.
- the area of print may be achieved using standard techniques, such as flexographic printing or inkjet printing.
- the ink used in the printed area comprises between 0ppm and 20ppm, preferably between 0ppm and 15ppm, more preferably between 0ppm and 10ppm, even more preferably between 0ppm and 5ppm, even more preferably between 0ppm and 1ppm, even more preferably between 0ppb and 100ppb, most preferably 0ppb dioxane.
- Those skilled in the art will be aware of known methods and techniques to determine the dioxane level within the ink formulations.
- the film may comprise an aversive agent, for example a bittering agent.
- Suitable bittering agents include, but are not limited to, naringin, sucrose octaacetate, quinine hydrochloride, denatonium benzoate, or mixtures thereof.
- Any suitable level of aversive agent may be used in the film. Suitable levels include, but are not limited to, 1 to 5000ppm, or even 100 to 2500ppm, or even 250 to 2000rpm.
- the water-soluble film or water-soluble unit dose article or both are coated in a lubricating agent, preferably, wherein the lubricating agent is selected from talc, zinc oxide, silicas, siloxanes, zeolites, silicic acid, alumina, sodium sulphate, potassium sulphate, calcium carbonate, magnesium carbonate, sodium citrate, sodium tripolyphosphate, potassium citrate, potassium tripolyphosphate, calcium stearate, zinc stearate, magnesium stearate, starch, modified starches, clay, kaolin, gypsum, cyclodextrins or mixtures thereof.
- the lubricating agent is selected from talc, zinc oxide, silicas, siloxanes, zeolites, silicic acid, alumina, sodium sulphate, potassium sulphate, calcium carbonate, magnesium carbonate, sodium citrate, sodium tripolyphosphate, potassium citrate, potassium tripolyphosphate, calcium stearate, zinc stea
- the water-soluble film and each individual component thereof, independently comprises between 0ppm and 20ppm, preferably between 0ppm and 15ppm, more preferably between 0ppm and 10ppm, even more preferably between 0ppm and 5ppm, even more preferably between 0ppm and 1ppm, even more preferably between 0ppb and 100ppb, most preferably 0ppb dioxane.
- 0ppm and 20ppm preferably between 0ppm and 15ppm, more preferably between 0ppm and 10ppm, even more preferably between 0ppm and 5ppm, even more preferably between 0ppm and 1ppm, even more preferably between 0ppb and 100ppb, most preferably 0ppb dioxane.
- the water-soluble unit dose article comprises a liquid laundry detergent composition.
- liquid laundry detergent composition refers to any laundry detergent composition comprising a liquid capable of wetting and treating a fabric, and includes, but is not limited to, liquids, gels, pastes, dispersions and the like.
- the liquid composition can include solids or gases in suitably subdivided form, but the liquid composition excludes forms which are non-fluid overall, such as tablets or granules.
- the liquid detergent composition can be used in a fabric hand wash operation or may be used in an automatic machine fabric wash operation.
- the liquid laundry detergent composition may comprise from 1%to 25%, by weight of the composition, of polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons.
- the polyethylene glycol may be present at a level of from 4%to 23%, preferably from 8%to 21%, more preferably from 10%to 20%, for example 2%, 3%, 5%, 7%, 12%, 15%, 17%, 20%, or any ranges therebetween, by weight of the composition.
- the polyethylene glycol may have a weight average molecular weight of from about 150 to about 300 Daltons, preferably from about 150 to about 250 Daltons, e.g. 150 Daltons, 200 Daltons, 250 Daltons and any ranges therebetween.
- the liquid laundry detergent composition may further comprise from 0.1%to 30%, preferably from 1%to 30%, more preferably from 2%to 30%, most preferably from 3%to 25%, for example 2%, 3%, 5%, 7%, 12%, 15%, 17%, 20%, 25%or any ranges therebetween, by weight of the composition, of a non-aqueous solvent.
- the non-aqueous solvent may be selected from the group consisting of monoalcohols, diols, polyols, glycol ethers and any combinations thereof.
- the non-aqueous solvent may be selected from the group consisting of ethanol, propanol, isopropanol, terpineol, ethylene glycol, 1, 2-propanediol, 1, 3-propanediol, butanediol, glycerine, butanetriol, pentaerythritol, dipropylene glycol (DPG) , tripropylene glycol (TPG) , polypropylene glycol (PPG) , n-butoxy propoxy propanol (nBPP) , diethylene glycol, 2-ethoxyethanol, 2-butoxyethanol, polyethyleneglycols having a weight average molecular weight of at least 400 Daltons, and any combinations thereof.
- DPG dipropylene glycol
- TPG tripropylene glycol
- PPG polypropylene glycol
- nBPP n-butoxy propoxy propanol
- diethylene glycol 2-ethoxyethanol
- 2-butoxyethanol poly
- diol solvent as used herein means alcohol compounds having two hydroxyl groups.
- polyol solvent as used herein means alcohol compounds having three or more hydroxyl groups.
- hydroxyl ether solvent as used herein means ether compounds having at least one hydroxyl group.
- 1, 2-propanediol may be present in an amount ranging from 0.1%to 15%, preferably from 1%to 14%, more preferably from 3%to 13%, by weight of the composition.
- glycerine may be present in an amount ranging from 0.1%to 10%, preferably from 1%to 9%, more preferably from 3%to 8%, by weight of the composition.
- liquid laundry detergent composition may comprise 1, 2-propanediol, glycerine and polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons in which the total amount of 1, 2-propanediol, glycerine and polyethylene glycol may range from 5%to 50%, preferably from 10%to 45%, more preferably from 15%to 40%, by weight of the composition.
- liquid laundry detergent composition may comprise 1, 2-propanediol and polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons in which the weight ratio of 1, 2-propanediol and the polyethylene glycol is from 0.1 to 0.6, preferably from 0.15 to 0.5, and more preferably from 0.2 to 0.4.
- liquid laundry detergent composition may comprise glycerine and polyethylene glycol having a weight average molecular weight of from about 150 to about 300 Daltons in which the weight ratio of glycerine and the polyethylene glycol is from 0.1 to 0.7, preferably from 0.2 to 0.6 and more preferably from 0.3 to 0.5.
- liquid laundry detergent composition may comprise 1, 2-propanediol and glycerine in which the weight ratio of 1, 2-propanediol and glycerine is from 0.2 to 5, preferably from 0.4 to 3, and more preferably from 0.5 to 1.
- the liquid laundry detergent composition comprises less than 15%, or less than 12%by weight of the liquid laundry detergent composition of water.
- the liquid laundry detergent composition may comprise a cleaning or care polymer, preferably wherein the cleaning or care polymer is selected from an ethoxylated or mixed ethoxylated/propoxylated polyethyleneimine, alkoxylated polyalkyl phenol, an amphiphilic graft copolymer, an optionally anionically modified polyester terephthalate, an optionally cationically modified hydroxyethylcellulose, a carboxymethylcellulose or a mixture thereof.
- the cleaning or care polymer is selected from an ethoxylated or mixed ethoxylated/propoxylated polyethyleneimine, alkoxylated polyalkyl phenol, an amphiphilic graft copolymer, an optionally anionically modified polyester terephthalate, an optionally cationically modified hydroxyethylcellulose, a carboxymethylcellulose or a mixture thereof.
- the water-soluble unit dose article may comprise an adjunct ingredient selected from hueing dyes, polymers, builders, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic materials, bleach, bleach activators, polymeric dispersing agents, anti-redeposition agents, suds suppressors, aesthetic dyes, opacifiers, perfumes, perfume delivery systems, structurants, hydrotropes, processing aids, pigments and mixtures thereof.
- an adjunct ingredient selected from hueing dyes, polymers, builders, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic materials, bleach, bleach activators, polymeric dispersing agents, anti-redeposition agents, suds suppressors, aesthetic dyes, opacifiers, perfumes, perfume delivery systems, structurants, hydrotropes, processing aids, pigments and mixtures thereof.
- the laundry detergent composition has a pH between 6 and 10, between 6.5 and 8.9, or between 7 and 8, wherein the pH of the laundry detergent composition is measured as a 10%product concentration in demineralized water at 20°C.
- the liquid laundry detergent composition is Newtonian.
- the liquid laundry detergent composition is non-Newtonian.
- a non-Newtonian liquid has properties that differ from those of a Newtonian liquid, more specifically, the viscosity of non-Newtonian liquids is dependent on shear rate, while a Newtonian liquid has a constant viscosity independent of the applied shear rate.
- the liquid laundry detergent composition may have a viscosity of at least 2Pa. s at a shear rate of 0.5s -1 as measured using a TA Rheometer AR2000 at 25°C, preferably wherein the liquid detergent composition has a viscosity of between 2Pa. s and 35Pa. s, preferably between 2.5Pa. s and 30Pa.
- the liquid laundry detergent composition may be characterized by a high shear viscosity ranging from about 100 to about 900 mPa ⁇ s, preferably from about 150 to about 800 mPa ⁇ s, more preferably from about 200 to about 600 mPa ⁇ s, measured at a shear rate of about 1000 s -1 and at a temperature of about 20°C.
- the fluid may be preferably a non-Newtonian fluid with shear-thinning properties, hence is further characterized by a low shear viscosity ranging from about 1000 mPa. s to about 10000 mPa. s, preferably from about 1500 mPa. s to about 7500 mPa. s, more preferably from about 2000 mPa. s to about 5000 mPa. s when measured at a shear rate of about 0.5 s -1 .
- the liquid detergent composition of the present invention may further comprise from 0.1%to 70%, preferably from 1%to 60%, more preferably from 5%to 50%, most preferably from 10%to 45%, by weight of the composition, of a surfactant.
- the surfactant may be selected from the group consisting of C 6 -C 20 alkyldimethyl amine oxides, C 6-20 amido alkyl dimethyl amine oxides, C 6 -C 20 linear alkylbenzene sulfonates (LAS) , C 6 -C 20 alkyl sulfates (AS) , C 6 -C 20 alkyl alkoxy sulfates (AAS) , C 6 -C 20 methyl ester sulfonates (MES) , C 6 -C 20 alkyl ether carboxylates (AEC) , fatty acids, alkyl alkoxylated alcohols, alkyl alkoxylated phenols, alkyl polysaccharides, alkyl polygly
- the surfactant may comprise a C 6 -C 20 alkyldimethyl amine oxide, a C 6 -C 20 LAS, and a C 6 -C 20 alkoxylated alcohol having a weight average degree of alkoxylation ranging from 1 to 20 preferably a C 6 -C 20 ethoxylated alcohol having a weight average degree of ethoxylation ranging from 1 to 20.
- the anionic surfactant may be selected from the group consisting of C 6 -C 20 linear alkylbenzene sulfonates (LAS) , C 6 -C 20 alkyl sulfates (AS) , C 6 -C 20 alkyl alkoxy sulfates (AAS) , C 6 -C 20 methyl ester sulfonates (MES) , C 6 -C 20 alkyl ether carboxylates (AEC) , fatty acids and any combinations thereof.
- LAS linear alkylbenzene sulfonates
- AS alkyl sulfates
- AAS alkyl alkoxy sulfates
- MES C 6 -C 20 methyl ester sulfonates
- AEC alkyl ether carboxylates
- the anionic surfactant system may comprise a C 6 -C 20 LAS and optionally an additional anionic surfactant such as a C 6 -C 20 AS and/or a C 6 -C 20 AAS preferably a C 6 -C 20 alkyl ethoxylated sulfate having a weight average degree of ethoxylation ranging from 1 to 7.
- LAS is C 10 -C 16 LAS, preferably C 12 -C 14 LAS.
- the non-ionic surfactant may be selected from the group consisting of alkyl alkoxylated alcohols, alkyl alkoxylated phenols, alkyl polysaccharides, alkyl polyglycosides, methyl ester ethoxylates, polyhydroxy fatty acid amides, alkoxylated fatty acid esters, sucrose esters, sorbitan esters and alkoxylated derivatives of sorbitan esters, and any combinations thereof. More preferably, the nonionic surfactant may comprise a C 8 -C 18 ethoxylated alcohol having a weight average degree of ethoxylation ranging from 1 to 20, preferably from 5 to 15, more preferably from 5 to 10.
- the surfactant may comprise an anionic surfactant and a non-ionic surfactant in which the anionic surfactant comprises a C 6 -C 20 LAS and optionally a C 6 -C 20 AS and/or a C 6 -C 20 AAS and the non-ionic surfactant comprises a C 6 -C 20 alkoxylated alcohol having a weight average degree of alkoxylation ranging from 1 to 20, preferably from 5 to 15, more preferably from 5 to 10.
- the weight ratio of LAS to AA x S is at least 0.6, preferably at least 0.8, more preferably at least 0.9, most preferably at least 1, for example 0.6, 0.7, 0.8, 0.9, 1, 1.2, 1.5, 2, 2.5, 3, 4, 5, 8, 10 or any ranges therebetween.
- the C 6 -C 20 LAS is present in an amount ranging from 1%to 30%, preferably from 2%to 25%, more preferably from 3%to 20%, by weight of the composition.
- the C 6 -C 20 AAS is present in an amount ranging from 1%to 20%, preferably from 2%to 15%, more preferably from 3%to 10%, by weight of the composition.
- the C 6 -C 20 alkoxylated alcohol is present in an amount ranging from 1%to 60%, preferably from 2%to 45%, more preferably from 3%to 30%, most preferably from 3%to 20%, by weight of the composition.
- the liquid laundry detergent composition may further comprise from 1%to 30%, preferably from 2%to 25%, more preferably from 3%to 20%, by weight of the composition, of an amine oxide
- the liquid laundry detergent composition may further comprise from 0.1%to 10%, preferably from 0.5%to 8%, more preferably from 0.7%to 6%, most preferably from 1%to 3, by weight of the composition, of a fatty acid
- liquid laundry detergent composition may comprise:
- a surfactant which comprises a C 6 -C 20 LAS, a C 6 -C 20 AAS, and a C 6 -C 20 alkoxylated alcohol having a weight average degree of alkoxylation ranging from 5 to 10.
- a further aspect of the present invention is a method of washing comprising the steps of adding the water-soluble unit dose article according to the present invention to sufficient water to dilute the liquid detergent composition by a factor of at least 300 fold to create a wash liquor and contacting items to be washed with said wash liquor.
- a further aspect of the present invention is a packaged product comprising a recloseable container and at least one water-soluble unit dose article according to the present invention comprised therein.
- the storage receptacle is a flexible, preferably resealable, bag, a rigid, preferably recloseable, tub or a mixture thereof, preferably, wherein the storage receptacle comprises a child resistant closure.
- suitable child resistant closures Those skilled in the art will be aware of suitable child resistant closures.
- the package may be made from any suitable material.
- the container may be made from metallic materials, Aluminium, plastic materials, cardboard materials, laminates, cellulose pulp materals or a mixture thereof.
- the package may be made from a plastic material, preferably a polyolefin material.
- the package may be made from polypropylene, polystyrene, polyethylene, polyethylene terephthalate, PVC or a mixture thereof or more durable engineering plastics like Acrylonitrile Butadiene Styrene (ABS) , Polycarbonates, Polyamides and the like
- ABS Acrylonitrile Butadiene Styrene
- the material used to make the container may comprise other ingredients, such as colorants, preservatives, plasticisers, UV stabilizers, Oxygen, perfume and moisture barriers recycled materials and the like.
- Step 2 3) Visually inspect the samples to determine if they are still homogeneous systems after Step 2) . If there is any phase separation such as the formation of separated layers or flocculation, it is determined as “fail” . If there is no phase separation, it is determined as “pass” .
- Corneometer (available from BMM&DI Clinical Sciences company) is used to measure weeping level of unit dose articles.
- the Measurement Principle is based on capacitance measurement of a dielectric medium. For Liquitabs it measures the dielectric constant of water and other substances which penetrate the PVA-Film.
- the unit dose articles need to be pre-conditioned in room condition 25°C or 32°C, 80%RH CTCH for 48hrs.
- the sensor of the Corneometer To measure the weeping level, put the sensor of the Corneometer on the surface of unit dose articles and press it down slowly until a measurement is registered. For a multi compartment unit dose article, the bottom layer is measured 5 times and each top layer 2 times.
- Weeping level can then be defined by correlating average, lower and upper limit of the range with the Weeping Scale being reflected below.
- Test 3 Physical property test for film in unit dose articles
- a 76 ⁇ m thick polyvinylalcohol based water soluble film was used to assess film physical properties. Film physical properties was defined through measuring film thickness increase%, area increase%, volume increase%, maximum tensile stress, and tensile strain%after having subjected the water-soluble film to an ageing experiment through immersing in liquid detergent composition samples as above.
- a film sample of 12.5 cm by 2.5 cm was immersed within 150 ml of test liquid by 1) selecting a flat clean inert glass recipient, 2) covering the bottom of the recipient with a thin layer of the example formulation to be tested, 3) carefully spreading the film to be tested on the liquid, 4) gently pushing air bubbles trapped under the film towards the sides, 5) gently pouring the remaining example formulation on top of the film, in such a way that the film is fully immersed into the liquid, ensuring that the film is free of wrinkles and that no air bubbles are in contact with the film, and 6) closing the glass container and 7) storing the closed container for 5 days at 50°C, 80%RH CTCH.
- the film was removed from the formulation example and gently wiped dry with a soft dry liquid absorbing paper, followed immediately by measuring the post film immersion and stress-strain profile.
- Example 1 Improved Balance among Stability, Physical Property and Weeping Performance of Unit Dose Articles Containing PEG 150 to 300 and a Non-aqueous Solvent
- Samples 1 to 5 and 8 contain polyethylene glycol (PEG) with different molecular weights (from 50 Daltons to 600 Daltons) as well as a non-aqueous solvent.
- Sample 6 contains a non-aqueous solvent only without a polyethylene glycol and Sample 7 contains PEG 200 only.
- PEG polyethylene glycol
- Nonionic surfactant C 12 -C 14 ethoxylated alcohol
- Anionic surfactant A C 12 -C 14 alkyl ethoxylated sulfate
- Anionic surfactant B C 11 -C 13 linear alkylbenzene sulfonates
- SRP polymer ethoxylated polyethyleneimine commercially available from BASF.
- liquid detergent formulations of Samples 1 to 8 as mentioned above were prepared using standard mixing techniques and equipment known to those skilled in the art. Then, the liquid detergent compositions ( ⁇ 10ml) were encapsulated into compartment (s) of the unit dose by using a polyvinyl-alcohol-based film in which the PVA film and the shape of the unit dose were the same with CN Tides Laundry three-chamber side-by-side pouches available in market (July 2022) .
- the combination of PEG having a molecular weight of from 100 to 600 Daltons and the non-aqueous solvent as shown in Samples 3 to 5 in the liquid detergent composition can provide an acceptable swelling performance.
- PEG has a molecular weight of from 200 to 600 Daltons
- the physical property of the film is more improved.
- PEG200 only shows a not bad stability and weeping performance, it shows an unacceptable physical property; and although non-aqueous solvent only shows acceptable stability, the weeping performance is only medium (i.e., not as good as the combination of PEG 100 to 400 and the non-aqueous solvent) and the physical property is not as good as the combination of PEG and the non-aqueous solvent.
- the combination of PEG having a molecular weight around 200 Daltons (e.g. from 150 to 300 Daltons) and the non-aqueous solvent provides an improved balance among the stability, physical property and weeping performance level.
- Example 2 Exemplary Formulations of Unit Dose Laundry Detergent Compositions Containing PEG
- compositions shown in Table 5 are made for unit dose laundry detergent. These compositions are encapsulated into compartment (s) of the unit dose by using a polyvinyl-alcohol-based film.
- Nonionic surfactant C 12 -C 14 ethoxylated alcohol
- Anionic surfactant A C 12 -C 14 alkyl ethoxylated sulfate
- Anionic surfactant B C 11 -C 13 linear alkylbenzene sulfonates
- SRP polymer ethoxylated polyethyleneimine commercially available from BASF.
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Abstract
La présente invention concerne des articles en dose unitaire solubles dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol présentant un poids moléculaire moyen en poids d'environ 150 à environ 300 daltons.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2022/119319 WO2024055289A1 (fr) | 2022-09-16 | 2022-09-16 | Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol |
PCT/CN2023/107881 WO2024055744A1 (fr) | 2022-09-16 | 2023-07-18 | Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol |
US18/454,864 US20240093129A1 (en) | 2022-09-16 | 2023-08-24 | Water-soluble unit dose article comprising liquid laundry detergent composition which comprises polyethylene glycol |
CN202311179103.4A CN117720975A (zh) | 2022-09-16 | 2023-09-13 | 包含含有聚乙二醇的液体衣物洗涤剂组合物的水溶性单位剂量制品 |
EP23197440.3A EP4339267A1 (fr) | 2022-09-16 | 2023-09-14 | Article de dose unitaire hydrosoluble comprenant une composition de détergent à lessive liquide qui comprend du polyéthylène glycol |
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PCT/CN2022/119319 WO2024055289A1 (fr) | 2022-09-16 | 2022-09-16 | Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol |
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WO2024055289A1 true WO2024055289A1 (fr) | 2024-03-21 |
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PCT/CN2022/119319 WO2024055289A1 (fr) | 2022-09-16 | 2022-09-16 | Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol |
PCT/CN2023/107881 WO2024055744A1 (fr) | 2022-09-16 | 2023-07-18 | Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol |
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PCT/CN2023/107881 WO2024055744A1 (fr) | 2022-09-16 | 2023-07-18 | Article en dose unitaire soluble dans l'eau comprenant une composition de détergent à lessive liquide qui contient du polyéthylène glycol |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2399980A1 (fr) * | 2010-06-24 | 2011-12-28 | The Procter & Gamble Company | Compositions stables comprenant du polymère de cellulose cationique et de la cellulase |
EP2399979A1 (fr) * | 2010-06-24 | 2011-12-28 | The Procter & Gamble Company | Articles à dose unitaire solubles comprenant un polymère cationique |
EP2740785A1 (fr) * | 2012-12-06 | 2014-06-11 | The Procter and Gamble Company | Utilisation de composition pour réduire le suintement et la migration à travers un film soluble dans l'eau |
EP3536772A1 (fr) * | 2018-03-01 | 2019-09-11 | Henkel IP & Holding GmbH | Conditionnements de dose unique de détergent et leurs procédés de production |
CN110343580A (zh) * | 2019-07-23 | 2019-10-18 | 广州立白企业集团有限公司 | 一种高含水量的单位剂量洗涤剂制品 |
WO2022062752A1 (fr) * | 2020-09-28 | 2022-03-31 | The Procter & Gamble Company | Article en dose unitaire soluble dans l'eau comprenant un tensioactif d'oxyde d'amine, un solvant diol et un solvant polyol |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2865742A1 (fr) * | 2013-10-28 | 2015-04-29 | Dow Global Technologies LLC | Compositions liquides stables non aqueuses comprenant un polymère cationique sous forme d'un particule |
-
2022
- 2022-09-16 WO PCT/CN2022/119319 patent/WO2024055289A1/fr unknown
-
2023
- 2023-07-18 WO PCT/CN2023/107881 patent/WO2024055744A1/fr unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2399980A1 (fr) * | 2010-06-24 | 2011-12-28 | The Procter & Gamble Company | Compositions stables comprenant du polymère de cellulose cationique et de la cellulase |
EP2399979A1 (fr) * | 2010-06-24 | 2011-12-28 | The Procter & Gamble Company | Articles à dose unitaire solubles comprenant un polymère cationique |
EP2740785A1 (fr) * | 2012-12-06 | 2014-06-11 | The Procter and Gamble Company | Utilisation de composition pour réduire le suintement et la migration à travers un film soluble dans l'eau |
EP3536772A1 (fr) * | 2018-03-01 | 2019-09-11 | Henkel IP & Holding GmbH | Conditionnements de dose unique de détergent et leurs procédés de production |
CN110343580A (zh) * | 2019-07-23 | 2019-10-18 | 广州立白企业集团有限公司 | 一种高含水量的单位剂量洗涤剂制品 |
WO2022062752A1 (fr) * | 2020-09-28 | 2022-03-31 | The Procter & Gamble Company | Article en dose unitaire soluble dans l'eau comprenant un tensioactif d'oxyde d'amine, un solvant diol et un solvant polyol |
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