CA2707805C - Process for treatment of a fabric - Google Patents
Process for treatment of a fabric Download PDFInfo
- Publication number
- CA2707805C CA2707805C CA2707805A CA2707805A CA2707805C CA 2707805 C CA2707805 C CA 2707805C CA 2707805 A CA2707805 A CA 2707805A CA 2707805 A CA2707805 A CA 2707805A CA 2707805 C CA2707805 C CA 2707805C
- Authority
- CA
- Canada
- Prior art keywords
- polymer
- fabric
- polymers
- aqueous medium
- copolymer
- 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.)
- Expired - Fee Related
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 35
- 238000011282 treatment Methods 0.000 title claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 125
- 239000012736 aqueous medium Substances 0.000 claims abstract description 48
- 229920001577 copolymer Polymers 0.000 claims abstract description 29
- 229920001519 homopolymer Polymers 0.000 claims abstract description 29
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 17
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 11
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 7
- 229920002125 Sokalan® Polymers 0.000 claims description 24
- 239000004584 polyacrylic acid Substances 0.000 claims description 18
- 239000003792 electrolyte Substances 0.000 claims description 13
- 239000002609 medium Substances 0.000 claims description 5
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 22
- -1 alkylene glycol Chemical compound 0.000 abstract description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 230000008021 deposition Effects 0.000 description 15
- 229920000742 Cotton Polymers 0.000 description 13
- 239000002304 perfume Substances 0.000 description 13
- 229920002451 polyvinyl alcohol Polymers 0.000 description 13
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 13
- 239000004372 Polyvinyl alcohol Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 229920000728 polyester Polymers 0.000 description 12
- 229940068984 polyvinyl alcohol Drugs 0.000 description 12
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 12
- 239000002202 Polyethylene glycol Substances 0.000 description 11
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 11
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 11
- 229920001223 polyethylene glycol Polymers 0.000 description 10
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 9
- 230000008901 benefit Effects 0.000 description 9
- 239000004615 ingredient Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 230000002378 acidificating effect Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000003599 detergent Substances 0.000 description 7
- 239000004071 soot Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000004753 textile Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920001515 polyalkylene glycol Polymers 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 235000010980 cellulose Nutrition 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000011976 maleic acid Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 125000001033 ether group Chemical group 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920005615 natural polymer Polymers 0.000 description 2
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 2
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920001059 synthetic polymer Polymers 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- GBFLZEXEOZUWRN-VKHMYHEASA-N S-carboxymethyl-L-cysteine Chemical compound OC(=O)[C@@H](N)CSCC(O)=O GBFLZEXEOZUWRN-VKHMYHEASA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229920013820 alkyl cellulose Polymers 0.000 description 1
- 125000000217 alkyl group Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 208000018747 cerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome Diseases 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000012771 household material Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229920013821 hydroxy alkyl cellulose Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920001444 polymaleic acid Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
-
- 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
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
-
- 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
- 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
- C11D3/3753—Polyvinylalcohol; Ethers or esters thereof
-
- 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
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and 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
- 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
- C11D3/3776—Heterocyclic compounds, e.g. lactam
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/05—Cellulose or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/05—Cellulose or derivatives thereof
- D06M15/09—Cellulose ethers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
- D06M15/3562—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
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Abstract
The present invention provides a process for treatment of a fabric comprising the steps of contacting the fabric with polymers A and B in an aqueous medium, wherein; (a) polymer A is selected from the class of homopolymers or copolymers of vinyl alcohol, alkylene glycol, saccharides, and carboxylic acid, and; (b) polymer B is selected from the class of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid, and; where polymers A and B are not of the same class and the aqueous medium has pH less than 6. The invention also provides a composition and a kit for treatment of a fabric.
Description
PROCESS FOR TREATMENT OF A FABRIC
Technical Field The present invention relates to a process for treatment of a fabric. It further relates to a composition and a kit for treatment of a fabric. The invention will be described hereinafter with reference to this application. However, it will be appreciated that the invention is not limited to this particular field of use.
Background and Prior Art Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of the common general knowledge in the field.
US2006046950A (Penninger and Bastigkeit, 2006) teaches a detergent composition for cleaning textile materials comprising a combination of a soil release-capable alkyl or hydroxyalkyl cellulose derivative and a hygroscopic polymer selected from the class consisting of polypeptides, hydrogels, polyvinyl alcohol, the polyalkylene glycols, the homopolymers of acrylic acid, methacrylic acid, and maleic acid, copolymers of acrylic acid, methacrylic acid, and maleic acid and mixtures of the homo and copolymers. The use of the hygroscopic polymers in combination with the cellulose derivatives is said to result in improved cleaning performance.
EP025696 (Unilever, 1988) teaches that improvement in soil suspension is achieved by adding mixture of vinyl pyrollidone polymer and a nonionic cellulose ether to a detergent composition.
Technical Field The present invention relates to a process for treatment of a fabric. It further relates to a composition and a kit for treatment of a fabric. The invention will be described hereinafter with reference to this application. However, it will be appreciated that the invention is not limited to this particular field of use.
Background and Prior Art Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of the common general knowledge in the field.
US2006046950A (Penninger and Bastigkeit, 2006) teaches a detergent composition for cleaning textile materials comprising a combination of a soil release-capable alkyl or hydroxyalkyl cellulose derivative and a hygroscopic polymer selected from the class consisting of polypeptides, hydrogels, polyvinyl alcohol, the polyalkylene glycols, the homopolymers of acrylic acid, methacrylic acid, and maleic acid, copolymers of acrylic acid, methacrylic acid, and maleic acid and mixtures of the homo and copolymers. The use of the hygroscopic polymers in combination with the cellulose derivatives is said to result in improved cleaning performance.
EP025696 (Unilever, 1988) teaches that improvement in soil suspension is achieved by adding mixture of vinyl pyrollidone polymer and a nonionic cellulose ether to a detergent composition.
2 GB994353 (Domestos, 1965) teaches that mixtures of certain polymeric materials, when incorporated into unbuilt detergent compositions based on synthetic surface active agents, provide enhanced anti-redeposition as compared to activity of individual polymers alone when added alone to same detergent compositions.
US3771951 (Berni et al, 1973) and GB133803 (Gaf Corp, 1973) teach that detergent composition comprising a water soluble detergent and a mixture of water soluble polyvinyl alcohol and a water soluble poly vinyl pyrollidone exhibits enhanced degree of soil suspension The above methods are reported to provide improved antiredeposition of soils and better cleaning of fabrics.
However, reduction in subsequent post-wash soiling of fabrics is not reported. Further, the cleaning compositions essentially comprise of a surfactant and the pH of wash liquor is alkaline or neutral.
US4007305 (Kakar et al, 1977) addresses the problem of providing satisfactory nondurable finishes to textiles which impart optimum soil release and soil repellent properties. According to D5, the textiles must be treated with an alkaline aqueous medium having pH value of 7.5-11 and containing water soluble hydrophilic soil release polymer having carboxylic acid groups and a dispersed hydrophobic soil repellent fluorochemical.
On the other hand, various industrial treatments for fabric modification are known to render the fabric less prone to
US3771951 (Berni et al, 1973) and GB133803 (Gaf Corp, 1973) teach that detergent composition comprising a water soluble detergent and a mixture of water soluble polyvinyl alcohol and a water soluble poly vinyl pyrollidone exhibits enhanced degree of soil suspension The above methods are reported to provide improved antiredeposition of soils and better cleaning of fabrics.
However, reduction in subsequent post-wash soiling of fabrics is not reported. Further, the cleaning compositions essentially comprise of a surfactant and the pH of wash liquor is alkaline or neutral.
US4007305 (Kakar et al, 1977) addresses the problem of providing satisfactory nondurable finishes to textiles which impart optimum soil release and soil repellent properties. According to D5, the textiles must be treated with an alkaline aqueous medium having pH value of 7.5-11 and containing water soluble hydrophilic soil release polymer having carboxylic acid groups and a dispersed hydrophobic soil repellent fluorochemical.
On the other hand, various industrial treatments for fabric modification are known to render the fabric less prone to
3 soiling. The fabric modification of this type is normally carried out during textile manufacture. The treatments, besides being substrate-specific, are relatively difficult to practise in household.
In view of the shortcomings of the prior art, one of the objects of the present invention is to provide a process for reducing soiling of fabrics that can be easily used in the household.
Another object of the present invention is to provide a process of treatment of a fabric for reducing soiling of fabrics.
Yet another object of the present invention is to provide a process for treatment of a fabric that improves efficacy of subsequent cleaning.
Yet another object of the present invention is to provide a process for reducing soiling of fabrics that allows enhanced deposition of benefit agents, such as perfume and fluorescer.
Yet another object of the present invention is to provide a process for treatment of a fabric which is effective on various types of fabrics such as cotton, polyester and polycotton.
Yet another object of the present invention is to provide a process for treatment of a fabric which is relatively easy to practice in household.
In view of the shortcomings of the prior art, one of the objects of the present invention is to provide a process for reducing soiling of fabrics that can be easily used in the household.
Another object of the present invention is to provide a process of treatment of a fabric for reducing soiling of fabrics.
Yet another object of the present invention is to provide a process for treatment of a fabric that improves efficacy of subsequent cleaning.
Yet another object of the present invention is to provide a process for reducing soiling of fabrics that allows enhanced deposition of benefit agents, such as perfume and fluorescer.
Yet another object of the present invention is to provide a process for treatment of a fabric which is effective on various types of fabrics such as cotton, polyester and polycotton.
Yet another object of the present invention is to provide a process for treatment of a fabric which is relatively easy to practice in household.
4 The present inventors have surprisingly found that contacting a fabric in an aqueous medium having acidic pH
with two different polymers, one comprising a plurality of hydroxyl groups and the other comprising a plurality of carbonyl or ether groups, increases deposition of polymer and provides benefits such as reduction in soiling, ease of subsequent cleaning and enhanced deposition of benefit agents.
Summary of the invention According to a first aspect of the present invention there is provided a process for treatment of a fabric comprising the steps of contacting the fabric with polymers A and B in an aqueous medium, wherein;
(a) polymer A is selected from the class consisting of homopolymers or copolymers of vinyl alcohol, alkylene glycol, saccharides, and carboxylic acid, and;
(b) polymer B is selected from the class consisting of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid, and;
where polymers A and B are not of the same class and the aqueous medium has pH less than 6.
Detailed description of the invention Fabric The fabric that can be treated includes synthetic as well
with two different polymers, one comprising a plurality of hydroxyl groups and the other comprising a plurality of carbonyl or ether groups, increases deposition of polymer and provides benefits such as reduction in soiling, ease of subsequent cleaning and enhanced deposition of benefit agents.
Summary of the invention According to a first aspect of the present invention there is provided a process for treatment of a fabric comprising the steps of contacting the fabric with polymers A and B in an aqueous medium, wherein;
(a) polymer A is selected from the class consisting of homopolymers or copolymers of vinyl alcohol, alkylene glycol, saccharides, and carboxylic acid, and;
(b) polymer B is selected from the class consisting of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid, and;
where polymers A and B are not of the same class and the aqueous medium has pH less than 6.
Detailed description of the invention Fabric The fabric that can be treated includes synthetic as well
5 as natural textiles. Fabrics may be made of cotton, polycotton, polyester, silk or nylon. It is envisaged that the method of the present invention can be used to treat garments and other clothing and apparel materials that form typical washload in household laundry. The household materials that can be treated according to the process of the present invention include, but are not limited to, bedspreads, blankets, carpets, curtains and upholstery.
Although the process of the present invention is described primarily for treatment of a fabric, it is envisaged that the process of the present invention can be advantageously used to treat other materials such as jute, leather, denim
Although the process of the present invention is described primarily for treatment of a fabric, it is envisaged that the process of the present invention can be advantageously used to treat other materials such as jute, leather, denim
6 and canvass. It is envisaged that the process of the present invention can be used to treat articles such as shoes, rain-wear and jackets.
Polymer A
According to the present invention, polymer A has a plurality of hydroxyl or carboxyl groups. The polymer A has a molecular mass preferably from 300 to 109. The polymer A
is selected from the class consisting of homopolymers or copolymers of vinyl alcohol, alkylene glycol, saccharides, and carboxylic acid.
Some non-limiting examples of polymer A according to the present invention include:
(a) Homopolymer of vinyl alcohol or polyvinyl alcohol.
(b) Homopolymer of ethylene or propylene glycol, i.e.
polyethylene glycol and polypropylene glycol.
(c) Homopolymer of a carboxylic acid, i.e. polycarboxylic acid such as polyacrylic acid, polymaleic acid or copolymer of acrylic and maleic acid.
(d) Polysaccharides such as starch, cellulose, sodium alginate, natural gums, and their modified materials such as sodium carboxymethyl cellulose, hydroxyethyl cellulose.
Homopolymer or copolymer of vinyl alcohol has a molecular mass of preferably from 10,000 to 1,000,000, more preferably from 50,000 to 500,000 and most preferably from 50,000 to 200,000. Commercially available polyvinyl alcohols that can be used include GOHSENOLO (Nippon Synthetic Chemical Industry), MOWIOLO (Clariant) and POVALO
(Kuraray).
Polymer A
According to the present invention, polymer A has a plurality of hydroxyl or carboxyl groups. The polymer A has a molecular mass preferably from 300 to 109. The polymer A
is selected from the class consisting of homopolymers or copolymers of vinyl alcohol, alkylene glycol, saccharides, and carboxylic acid.
Some non-limiting examples of polymer A according to the present invention include:
(a) Homopolymer of vinyl alcohol or polyvinyl alcohol.
(b) Homopolymer of ethylene or propylene glycol, i.e.
polyethylene glycol and polypropylene glycol.
(c) Homopolymer of a carboxylic acid, i.e. polycarboxylic acid such as polyacrylic acid, polymaleic acid or copolymer of acrylic and maleic acid.
(d) Polysaccharides such as starch, cellulose, sodium alginate, natural gums, and their modified materials such as sodium carboxymethyl cellulose, hydroxyethyl cellulose.
Homopolymer or copolymer of vinyl alcohol has a molecular mass of preferably from 10,000 to 1,000,000, more preferably from 50,000 to 500,000 and most preferably from 50,000 to 200,000. Commercially available polyvinyl alcohols that can be used include GOHSENOLO (Nippon Synthetic Chemical Industry), MOWIOLO (Clariant) and POVALO
(Kuraray).
7 Homopolymer or copolymer of alkylene glycol has a molecular mass of preferably from 4,000 to 20,000, more preferably from 5,000 to 15,000 and most preferably from 5,000 to 10,000. Commercially available polyalkylene glycol can be used. Some examples of commercially available polyalkylene glycol include POLYGLYKOLO (Clariant) and CARBOWAX0 (Union Carbide).
Homopolymer or copolymer of carboxylic acid has a molecular mass of preferably from 2,000 to 10,000,000, more preferably from 50,000 to 1,000,000 and most preferably from 90,000 to 500,000.
Homopolymer or copolymer of saccharide has a molecular mass of preferably from 1000 to 109, more preferably from 10000 to 109 and most preferably from 100,000 to 109.
Polymer A may be synthetic or natural. However, synthetic polymer is preferred over natural polymer.
According to a preferred aspect, the polymer A is water soluble.
It is preferred that the polymer A is selected from a class consisting of homopolymers or copolymers of vinyl alcohol or carboxylic acid.
The homopolymer or copolymer of carboxylic acid is preferably a polyacrylic acid or a copolymer thereof.
Examples include SOKALANO PA (BASF) and CARBOPOLO
(Lubrizol).
Homopolymer or copolymer of carboxylic acid has a molecular mass of preferably from 2,000 to 10,000,000, more preferably from 50,000 to 1,000,000 and most preferably from 90,000 to 500,000.
Homopolymer or copolymer of saccharide has a molecular mass of preferably from 1000 to 109, more preferably from 10000 to 109 and most preferably from 100,000 to 109.
Polymer A may be synthetic or natural. However, synthetic polymer is preferred over natural polymer.
According to a preferred aspect, the polymer A is water soluble.
It is preferred that the polymer A is selected from a class consisting of homopolymers or copolymers of vinyl alcohol or carboxylic acid.
The homopolymer or copolymer of carboxylic acid is preferably a polyacrylic acid or a copolymer thereof.
Examples include SOKALANO PA (BASF) and CARBOPOLO
(Lubrizol).
8 The amount of polymer A is preferably from 0.005 to 2, more preferably from 0.02 to 1, and most preferably from 0.05 to 0.5 mg per cm2 area of the fabric. The term "fabric area"
as used herein refers to surface area of one side of the fabric.
Polymer B
According to the present invention, polymer B has a monomeric unit comprising ether or carbonyl group. Polymer B has a molecular mass preferably from 1000 to 109. The polymer B is selected from the class consisting of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid.
Polymers and homopolymers of carboxylic acid and/or sacchharides and/or polyalkylene glycol/ether qualify to be selected both as polymer A or polymer B, as they comprise hydroxyl or carboxyl group and either a carbonyl or an ether group. However, according to an essential aspect, polymer A and polymer B are not of the same class. It is particularly preferred that the polymers A and B are selected from different classes of polymers. Without wishing to be limited by theory, it is believed that the two polymers A and B, when dissolved in water, form a complex with a solubility lower than each of the polymers A
and B, which helps in enhanced deposition and other benefits.
Homopolymer or copolymer of vinyl pyrrolidone has a molecular mass of preferably from 1000 to 10000000, more preferably from 10,000 to 1,000,000 and most preferably from 30,000 to 500,000. Commercially available polyvinyl
as used herein refers to surface area of one side of the fabric.
Polymer B
According to the present invention, polymer B has a monomeric unit comprising ether or carbonyl group. Polymer B has a molecular mass preferably from 1000 to 109. The polymer B is selected from the class consisting of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid.
Polymers and homopolymers of carboxylic acid and/or sacchharides and/or polyalkylene glycol/ether qualify to be selected both as polymer A or polymer B, as they comprise hydroxyl or carboxyl group and either a carbonyl or an ether group. However, according to an essential aspect, polymer A and polymer B are not of the same class. It is particularly preferred that the polymers A and B are selected from different classes of polymers. Without wishing to be limited by theory, it is believed that the two polymers A and B, when dissolved in water, form a complex with a solubility lower than each of the polymers A
and B, which helps in enhanced deposition and other benefits.
Homopolymer or copolymer of vinyl pyrrolidone has a molecular mass of preferably from 1000 to 10000000, more preferably from 10,000 to 1,000,000 and most preferably from 30,000 to 500,000. Commercially available polyvinyl
9 pyrrolidone can be used, one example of which is LUVISKOLO
(BASF).
Homopolymer or copolymer of poly alkylene oxide has a molecular mass greater than 20,000. The molecular mass is preferably from 20,000 to 1,000,000, more preferably from 30,000 to 500,000 and most preferably from 50,000 to 200,000 Homopolymer or copolymer of saccharide has a molecular mass of preferably from 1000 to 109, more preferably from 10,000 to 109 and most preferably from 100,000 to 109. Any commercially available poly alkylene oxide, for example POLY0X0 (Dow Chemical Co) can be used according to the present invention.
Polymer B may be synthetic or natural. However, synthetic polymer is preferred over natural polymer.
According to a preferred aspect, the polymer B is water soluble.
It is particularly preferred that the polymer B is selected from a class consisting of homopolymers or copolymers of vinyl pyrrolidone or alkylene oxide.
The amount of polymer B is preferably from 0.005 to 2, more preferably from 0.02 to 1, and most preferably from 0.05 to 0.5 mg per cm2 area of the fabric.
Some examples of combinations of polymer A and polymer B, which are particularly preferred, are given below.
Table 1: Preferred combination of the polymers Polymer A Polymer B
Polyacrylic acid (PAA) Poly vinyl pyrrolidone (PVP) Polyacrylic acid (PAA) Polyethylene Oxide(PEO) Polyethylene Glycol (PEG) Polyacrylic acid (PAA) Poly vinyl alcohol (PVA) Polyacrylic acid (PAA) Poly vinyl alcohol (PVA) Polyethylene Oxide (PEO) Sodium carboxymethyl Polyethylene Oxide (PEO) cellulose (SCMC) Hydroxyethyl cellulose Polyacrylic acid(PAA) Most preferred combinations of the polymers are the ones in the first three rows in the Table 1 above, i.e. PAA-PVP, PAA-PEO and PEG-PAA.
(BASF).
Homopolymer or copolymer of poly alkylene oxide has a molecular mass greater than 20,000. The molecular mass is preferably from 20,000 to 1,000,000, more preferably from 30,000 to 500,000 and most preferably from 50,000 to 200,000 Homopolymer or copolymer of saccharide has a molecular mass of preferably from 1000 to 109, more preferably from 10,000 to 109 and most preferably from 100,000 to 109. Any commercially available poly alkylene oxide, for example POLY0X0 (Dow Chemical Co) can be used according to the present invention.
Polymer B may be synthetic or natural. However, synthetic polymer is preferred over natural polymer.
According to a preferred aspect, the polymer B is water soluble.
It is particularly preferred that the polymer B is selected from a class consisting of homopolymers or copolymers of vinyl pyrrolidone or alkylene oxide.
The amount of polymer B is preferably from 0.005 to 2, more preferably from 0.02 to 1, and most preferably from 0.05 to 0.5 mg per cm2 area of the fabric.
Some examples of combinations of polymer A and polymer B, which are particularly preferred, are given below.
Table 1: Preferred combination of the polymers Polymer A Polymer B
Polyacrylic acid (PAA) Poly vinyl pyrrolidone (PVP) Polyacrylic acid (PAA) Polyethylene Oxide(PEO) Polyethylene Glycol (PEG) Polyacrylic acid (PAA) Poly vinyl alcohol (PVA) Polyacrylic acid (PAA) Poly vinyl alcohol (PVA) Polyethylene Oxide (PEO) Sodium carboxymethyl Polyethylene Oxide (PEO) cellulose (SCMC) Hydroxyethyl cellulose Polyacrylic acid(PAA) Most preferred combinations of the polymers are the ones in the first three rows in the Table 1 above, i.e. PAA-PVP, PAA-PEO and PEG-PAA.
10 Aqueous medium According to the invention, the two polymers are contacted with the fabric in an aqueous medium having pH less than 6.
The aqueous medium has pH preferably less than 5 and more preferably less than 4. Aqueous medium has pH preferably greater than 1 and more preferably greater than 2.
The polymers may be chosen in such a way that when the polymers are added to the aqueous medium, pH of the aqueous medium is less than 6. Preferably, an acidic ingredient is added to aqueous medium to ensure that the pH of the aqueous medium is less than 6. Acidic ingredients that reduce pH of resulting aqueous medium to less than 6 are
The aqueous medium has pH preferably less than 5 and more preferably less than 4. Aqueous medium has pH preferably greater than 1 and more preferably greater than 2.
The polymers may be chosen in such a way that when the polymers are added to the aqueous medium, pH of the aqueous medium is less than 6. Preferably, an acidic ingredient is added to aqueous medium to ensure that the pH of the aqueous medium is less than 6. Acidic ingredients that reduce pH of resulting aqueous medium to less than 6 are
11 well known to a person skilled in the art and any suitable acidic ingredient may be chosen.
The aqueous medium may comprise either polymer A, or polymer B, or both the polymers. Alternatively, one or both the polymers may be added to the aqueous medium during the process of the present invention.
Polymer A, when mixed with the aqueous medium, is from 0.005 to 10%, more preferably from 0.05 to 5%, and most preferably from 0.05 to 2% by weight of the aqueous medium.
Polymer B, when mixed with the aqueous medium, is from 0.005 to 10%, more preferably from 0.01 to 5%, and most preferably from 0.01 to 2% by weight of the aqueous medium.
The aqueous medium preferably comprises an electrolyte. The electrolyte is preferably from 0.001 to 5%, more preferably from 0.01 to 1%, and most preferably from 0.04 to 0.2% by weight of the aqueous medium.
Without wishing to be limited by theory, it is believed that the addition of electrolyte allows the process of the invention to be carried out with relatively low amounts of polymers A and B.
Electrolytes that can be used according to the present invention include water soluble ionic salts. The cation of the salt includes an alkali metal, alkaline earth metal or trivalent metal cation. The anion of the salt includes chloride, sulphate, nitrate and phosphate. Some examples of electrolytes include chlorides, sulphates or nitrates of
The aqueous medium may comprise either polymer A, or polymer B, or both the polymers. Alternatively, one or both the polymers may be added to the aqueous medium during the process of the present invention.
Polymer A, when mixed with the aqueous medium, is from 0.005 to 10%, more preferably from 0.05 to 5%, and most preferably from 0.05 to 2% by weight of the aqueous medium.
Polymer B, when mixed with the aqueous medium, is from 0.005 to 10%, more preferably from 0.01 to 5%, and most preferably from 0.01 to 2% by weight of the aqueous medium.
The aqueous medium preferably comprises an electrolyte. The electrolyte is preferably from 0.001 to 5%, more preferably from 0.01 to 1%, and most preferably from 0.04 to 0.2% by weight of the aqueous medium.
Without wishing to be limited by theory, it is believed that the addition of electrolyte allows the process of the invention to be carried out with relatively low amounts of polymers A and B.
Electrolytes that can be used according to the present invention include water soluble ionic salts. The cation of the salt includes an alkali metal, alkaline earth metal or trivalent metal cation. The anion of the salt includes chloride, sulphate, nitrate and phosphate. Some examples of electrolytes include chlorides, sulphates or nitrates of
12 sodium, potassium, magnesium or calcium. Calcium salts are particularly preferred.
According to a preferred aspect, the aqueous medium comprises no more than 200 ppm anionic surfactant. The aqueous medium comprises no more than 100 ppm, more preferably less than 50 ppm anionic surfactant. It is particularly preferred that the aqueous medium is substantially free of anionic surfactant.
The aqueous medium preferably comprises of at least one benefit agent. The benefit agent that can be included in the aqueous medium includes, but not limited to ingredients such as perfume, fluorescer, deodorant, antibacterial agent, shading dye and bluing agent. One of the advantages of the present invention is that the deposition of benefit agent is enhanced.
Process sequence It is envisaged that the fabric is contacted with the polymers A and B either sequentially in any order, or simultaneously. Accordingly the fabric may be contacted with polymer A, followed by contacting with polymer B.
Alternatively the fabric may be contacted with polymer B, followed by contacting with polymer A. The fabric may be simultaneously contacted with both the polymers A and B.
Although the fabric may be contacted simultaneously with both the polymers, it is preferred that the fabric is contacted with the polymers sequentially, in any order.
According to a preferred aspect, the aqueous medium comprises no more than 200 ppm anionic surfactant. The aqueous medium comprises no more than 100 ppm, more preferably less than 50 ppm anionic surfactant. It is particularly preferred that the aqueous medium is substantially free of anionic surfactant.
The aqueous medium preferably comprises of at least one benefit agent. The benefit agent that can be included in the aqueous medium includes, but not limited to ingredients such as perfume, fluorescer, deodorant, antibacterial agent, shading dye and bluing agent. One of the advantages of the present invention is that the deposition of benefit agent is enhanced.
Process sequence It is envisaged that the fabric is contacted with the polymers A and B either sequentially in any order, or simultaneously. Accordingly the fabric may be contacted with polymer A, followed by contacting with polymer B.
Alternatively the fabric may be contacted with polymer B, followed by contacting with polymer A. The fabric may be simultaneously contacted with both the polymers A and B.
Although the fabric may be contacted simultaneously with both the polymers, it is preferred that the fabric is contacted with the polymers sequentially, in any order.
13 Process of contacting The step of contacting the fabric with polymers A and B can be carried out in any suitable manner.
Polymers A, or polymer B, or both, are mixed with the aqueous medium prior to contacting with the fabric.
Alternatively, polymer A may also be mixed with a non-aqueous medium including solvents such as alcohol and acetone prior to contacting with the fabric. However, it is preferred that the polymer or polymers are mixed with the aqueous medium prior to contacting with the fabric. The fabric may be dipped into the aqueous medium comprising one or more polymers. Alternatively, the aqueous medium comprising one or both the polymers may be sprayed on the fabric.
It is also envisaged that either of the polymers A and B
may be used in a form of abradable sticks which may be rubbed against the area of the fabric to be treated, followed by contact with the aqueous medium.
Composition The compositions for the process of the invention typically comprise 1-99% by weight polymer A, 1-99% by weight polymer B, and 0 to 10% by weight an acidic ingredient wherein;
(a) polymer A is selected from the class consisting of homopolymers or copolymers of vinyl alcohol, alkylene glycol, saccharides, and carboxylic acid, and;
Polymers A, or polymer B, or both, are mixed with the aqueous medium prior to contacting with the fabric.
Alternatively, polymer A may also be mixed with a non-aqueous medium including solvents such as alcohol and acetone prior to contacting with the fabric. However, it is preferred that the polymer or polymers are mixed with the aqueous medium prior to contacting with the fabric. The fabric may be dipped into the aqueous medium comprising one or more polymers. Alternatively, the aqueous medium comprising one or both the polymers may be sprayed on the fabric.
It is also envisaged that either of the polymers A and B
may be used in a form of abradable sticks which may be rubbed against the area of the fabric to be treated, followed by contact with the aqueous medium.
Composition The compositions for the process of the invention typically comprise 1-99% by weight polymer A, 1-99% by weight polymer B, and 0 to 10% by weight an acidic ingredient wherein;
(a) polymer A is selected from the class consisting of homopolymers or copolymers of vinyl alcohol, alkylene glycol, saccharides, and carboxylic acid, and;
14 (b) polymer B is selected from the class consisting of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid, and;
where polymers A and B are not of the same class and the pH of 1% aqueous solution of the composition is less than 6.
The composition comprises preferably 5-95%, more preferably 10-90% and most preferably 20-80% by weight polymer A. The composition comprises preferably 5-95%, more preferably 10-90% and most preferably 20-80% by weight polymer B.
The polymers may be chosen in such a way that pH of 1%
aqueous solution of the composition is less than 6.
Preferably, an acidic ingredient is present in the composition at 0.1-10% by weight of the composition to ensure that the pH of 1% aqueous solution of the composition is less than 6. Acidic ingredients that reduce pH of resulting aqueous medium to less than 6 are well known to a person skilled in the art and any suitable acidic ingredient may be chosen.
Kit A kit for treatment of a fabric may be provided comprising the composition and a set of instructions for use.
It is particularly preferred that the polymers A and B are separately packaged, i.e. the polymers A and B are packaged individually in separate packs or in separate compartments of a twin compartment package.
Examples The invention will now be demonstrated with examples. The examples are by way of illustration only and do not limit the scope of the invention in any manner.
Materials and methods Following materials were used in the examples.
Table 2: Materials used in the examples Material Source/ Supplier Water Deionized water Polyvinyl pyrrolidone molecular mass Aldrich 90000 and 1,300,000 Polyacrylic acid, molecular mass Aldrich Polyacrylic acid, sodium salt, Aldrich molecular mass 8000 Polyacrylic acid, molecular mass Aldrich Polyvinyl alcohol molecular mass Aldrich 124,000 Polyethylene glycol, Fluka Molecular mass 17500 Polyethylene oxide Aldrich Molecular mass 100000 Polyester fabric Bombay Dyeing Polycotton fabric Bombay Dyeing 67/33 Carbon soot Cabot India N220 Deposition Polymer A was polyacrylic acid of molecular mass 450000 in examples 1 and 2 and comparative examples 1-A to 2-B.
Polymer B was polyvinyl pyrrolidone of molecular mass 90000, in example 1 and comparative examples A and B.
Polymer B in example 2 and comparative examples C, D, and 2A was polyethylene oxide molecular mass 100,000.
For deposition studies about 10 g of fabric was treated with the polymers in solution and the weight gain was determined gravimetrically after drying of treated fabrics.
Table 3: Deposition of polymers on cotton, polycotton and polyester fabrics Ex Polymer Polymer pH Total Total Total No A (% by B (% by polymer polymer polymer weight weight deposited deposited deposited in in (g/100 g (g/100 g (g/100 g aqueous aqueous fabric) fabric) fabric) medium) medium) Cotton Polycotton Polyester 1 1 1 2.8 4.41 2.67 3.41 A 2 - 2.5 0.90 0.96 0.96 B - 2 5.2 0.87 0.70 0.78 2 0.5 0.5 3.2 2.67 2.68 4.37 C 1 - 2.6 1.40 1.72 1.30 D - 1 5.5 1.68 0.80 1.19 2A 0.5 0.5 8.0 1.49 1.52 1.27 From the results, it can be seen that the deposition of two polymers when used together according to the process of the present invention is significantly higher in comparison to the fabrics treated with only one of the polymers.
Soiling Soiling Protocol Fabric was treated with polymer and dried. Dried fabric was dipped in carbon soot dispersion (150 ppm) in water which was stabilized by addition of sodium alkylbenzene sulfonate (50 ppm). The fabric was removed from the carbon soot solution and immediately rinsed in water and dried. Change in reflectance (AR), i.e. the difference in reflectance of the fabric before and after soiling, was a measure of soiling of fabric, with negative value of AR indicating that the fabric was soiled.
In the following table, following abbreviations are used PEG 17500 - polyethylene glycol, molecular mass 17,500.
PAA 8000 - polyacrylic acid, molecular mass 8,000.
PVA 124000 - polyvinyl alcohol, molecular mass 125,000.
PVP 90000 - polyvinyl pyrrolidone molecular mass 90,000.
Table 4: Soiling of cotton fabrics with carbon soot Example Polymer A Polymer B pH AR460* (Final -No (% by (% by Initial) weight in weight in After dipping aqueous aqueous cotton fabric in medium) medium) carbon soot 3 PEG 17500 PAA 8000 3.2 -1.7 (0.05%) (0.05%) 4 PVA 124000 PAA 8000 3.4 -4.7 (0.05%) (0.05%) PAA (0.05%) PVP 90000 4.3 -0.1 (0.05%) E PEG 17500 - 5.5 -31.7 (0.1%) F - PAA - 3.3 -14.7 8000(0.1%) G PVA 124000 - 5.9 -22.7 (0.1%) H PVP 90000 6.9 -27.7 (0.1%) I - - 7.0 -37.7 From the results, it can be seen that the soiling of 5 fabrics treated by the process of the present invention is significantly less than untreated fabric (comparative example I) or for the fabrics treated with only one of the polymers (comparative examples F, G and H).
Cleaning Cleaning Protocol Fabric was treated with polymer and dried. Dried fabric was dipped in carbon soot dispersion (150 ppm) in water which is stabilized by addition of sodium alkylbenzene sulfonate (50 ppm). The fabric was then dried. The dried fabric was then cleaned with water, sodium carbonate (0.15% by weight) solution in water, and commercially available detergent (SURF EXCEL 0.3% by weight) in water. Change in reflectance (AR) was a measure of cleaning of fabric.
Higher values of AR indicate better cleaning.
Polymer A was polyacrylic acid of molecular mass 2000 and polymer B was polyvinyl pyrrolidone of molecular mass 90000. In Example 6, both the polymers were used at 0.2 %
by weight of the aqueous medium. The pH of aqueous medium was 3Ø In comparative examples J and K, polymers A and B
were used alone, respectively, each at 0.4% by weight of the aqueous medium(pH 2.7 and 7.0, respectively).
Comparative example L is for untreated fabrics (pH 7). The fabrics (cotton, polycotton and polyester) were cleaned according to the protocol given and the results are tabulated below Table 5: Cleaning of fabrics soiled with carbon soot Ex AR460* after AR460* after AR460* after No washing with washing with washing with sodium water) SURF EXCEL ) carbonate) C* PC** PE** C PC PE C PC PE
*
6 21.9 18.9 21.9 18.2 7.2 17.1 13.5 22.5 28.2 J 12.7 6.7 5.4 12.4 4.1 3.6 14.5 9.5 7.4 K 8.8 7.4 7.2 12.3 2.4 8.9 14.6 9.5 11.4 L 14.0 2.6 3.0 15.0 4.2 2.7 13.7 6.9 4.9 C* - Cotton PC** - Polycotton 5 PE*** - Polyester From the results, it is clear that the cleaning efficacy for example 6, which is within scope of the present invention, is higher than the cleaning efficacy obtained in 10 the comparative examples J, K and L which are outside the scope of the present invention. In particular, the cleaning efficacy is better in case of washing with sodium carbonate or water. Further, the results show that cleaning efficacy is particularly enhanced for polycotton and polyester
where polymers A and B are not of the same class and the pH of 1% aqueous solution of the composition is less than 6.
The composition comprises preferably 5-95%, more preferably 10-90% and most preferably 20-80% by weight polymer A. The composition comprises preferably 5-95%, more preferably 10-90% and most preferably 20-80% by weight polymer B.
The polymers may be chosen in such a way that pH of 1%
aqueous solution of the composition is less than 6.
Preferably, an acidic ingredient is present in the composition at 0.1-10% by weight of the composition to ensure that the pH of 1% aqueous solution of the composition is less than 6. Acidic ingredients that reduce pH of resulting aqueous medium to less than 6 are well known to a person skilled in the art and any suitable acidic ingredient may be chosen.
Kit A kit for treatment of a fabric may be provided comprising the composition and a set of instructions for use.
It is particularly preferred that the polymers A and B are separately packaged, i.e. the polymers A and B are packaged individually in separate packs or in separate compartments of a twin compartment package.
Examples The invention will now be demonstrated with examples. The examples are by way of illustration only and do not limit the scope of the invention in any manner.
Materials and methods Following materials were used in the examples.
Table 2: Materials used in the examples Material Source/ Supplier Water Deionized water Polyvinyl pyrrolidone molecular mass Aldrich 90000 and 1,300,000 Polyacrylic acid, molecular mass Aldrich Polyacrylic acid, sodium salt, Aldrich molecular mass 8000 Polyacrylic acid, molecular mass Aldrich Polyvinyl alcohol molecular mass Aldrich 124,000 Polyethylene glycol, Fluka Molecular mass 17500 Polyethylene oxide Aldrich Molecular mass 100000 Polyester fabric Bombay Dyeing Polycotton fabric Bombay Dyeing 67/33 Carbon soot Cabot India N220 Deposition Polymer A was polyacrylic acid of molecular mass 450000 in examples 1 and 2 and comparative examples 1-A to 2-B.
Polymer B was polyvinyl pyrrolidone of molecular mass 90000, in example 1 and comparative examples A and B.
Polymer B in example 2 and comparative examples C, D, and 2A was polyethylene oxide molecular mass 100,000.
For deposition studies about 10 g of fabric was treated with the polymers in solution and the weight gain was determined gravimetrically after drying of treated fabrics.
Table 3: Deposition of polymers on cotton, polycotton and polyester fabrics Ex Polymer Polymer pH Total Total Total No A (% by B (% by polymer polymer polymer weight weight deposited deposited deposited in in (g/100 g (g/100 g (g/100 g aqueous aqueous fabric) fabric) fabric) medium) medium) Cotton Polycotton Polyester 1 1 1 2.8 4.41 2.67 3.41 A 2 - 2.5 0.90 0.96 0.96 B - 2 5.2 0.87 0.70 0.78 2 0.5 0.5 3.2 2.67 2.68 4.37 C 1 - 2.6 1.40 1.72 1.30 D - 1 5.5 1.68 0.80 1.19 2A 0.5 0.5 8.0 1.49 1.52 1.27 From the results, it can be seen that the deposition of two polymers when used together according to the process of the present invention is significantly higher in comparison to the fabrics treated with only one of the polymers.
Soiling Soiling Protocol Fabric was treated with polymer and dried. Dried fabric was dipped in carbon soot dispersion (150 ppm) in water which was stabilized by addition of sodium alkylbenzene sulfonate (50 ppm). The fabric was removed from the carbon soot solution and immediately rinsed in water and dried. Change in reflectance (AR), i.e. the difference in reflectance of the fabric before and after soiling, was a measure of soiling of fabric, with negative value of AR indicating that the fabric was soiled.
In the following table, following abbreviations are used PEG 17500 - polyethylene glycol, molecular mass 17,500.
PAA 8000 - polyacrylic acid, molecular mass 8,000.
PVA 124000 - polyvinyl alcohol, molecular mass 125,000.
PVP 90000 - polyvinyl pyrrolidone molecular mass 90,000.
Table 4: Soiling of cotton fabrics with carbon soot Example Polymer A Polymer B pH AR460* (Final -No (% by (% by Initial) weight in weight in After dipping aqueous aqueous cotton fabric in medium) medium) carbon soot 3 PEG 17500 PAA 8000 3.2 -1.7 (0.05%) (0.05%) 4 PVA 124000 PAA 8000 3.4 -4.7 (0.05%) (0.05%) PAA (0.05%) PVP 90000 4.3 -0.1 (0.05%) E PEG 17500 - 5.5 -31.7 (0.1%) F - PAA - 3.3 -14.7 8000(0.1%) G PVA 124000 - 5.9 -22.7 (0.1%) H PVP 90000 6.9 -27.7 (0.1%) I - - 7.0 -37.7 From the results, it can be seen that the soiling of 5 fabrics treated by the process of the present invention is significantly less than untreated fabric (comparative example I) or for the fabrics treated with only one of the polymers (comparative examples F, G and H).
Cleaning Cleaning Protocol Fabric was treated with polymer and dried. Dried fabric was dipped in carbon soot dispersion (150 ppm) in water which is stabilized by addition of sodium alkylbenzene sulfonate (50 ppm). The fabric was then dried. The dried fabric was then cleaned with water, sodium carbonate (0.15% by weight) solution in water, and commercially available detergent (SURF EXCEL 0.3% by weight) in water. Change in reflectance (AR) was a measure of cleaning of fabric.
Higher values of AR indicate better cleaning.
Polymer A was polyacrylic acid of molecular mass 2000 and polymer B was polyvinyl pyrrolidone of molecular mass 90000. In Example 6, both the polymers were used at 0.2 %
by weight of the aqueous medium. The pH of aqueous medium was 3Ø In comparative examples J and K, polymers A and B
were used alone, respectively, each at 0.4% by weight of the aqueous medium(pH 2.7 and 7.0, respectively).
Comparative example L is for untreated fabrics (pH 7). The fabrics (cotton, polycotton and polyester) were cleaned according to the protocol given and the results are tabulated below Table 5: Cleaning of fabrics soiled with carbon soot Ex AR460* after AR460* after AR460* after No washing with washing with washing with sodium water) SURF EXCEL ) carbonate) C* PC** PE** C PC PE C PC PE
*
6 21.9 18.9 21.9 18.2 7.2 17.1 13.5 22.5 28.2 J 12.7 6.7 5.4 12.4 4.1 3.6 14.5 9.5 7.4 K 8.8 7.4 7.2 12.3 2.4 8.9 14.6 9.5 11.4 L 14.0 2.6 3.0 15.0 4.2 2.7 13.7 6.9 4.9 C* - Cotton PC** - Polycotton 5 PE*** - Polyester From the results, it is clear that the cleaning efficacy for example 6, which is within scope of the present invention, is higher than the cleaning efficacy obtained in 10 the comparative examples J, K and L which are outside the scope of the present invention. In particular, the cleaning efficacy is better in case of washing with sodium carbonate or water. Further, the results show that cleaning efficacy is particularly enhanced for polycotton and polyester
15 fabrics, when washing is with commercially available surfactant.
Effect of electrolyte Polymer A was polyacrylic acid of molecular mass 450,000 20 and polymer B was polyvinyl pyrrolidone of molecular mass 1,300,000. In all the examples, both the polymers were used at 0.1 % by weight of the aqueous medium. The effect of electrolyte addition was studied by adding various electrolytes at 0.1% by weight of the total aqueous medium.
The pH of aqueous media was in the range 2.7 to 3Ø The fabrics (cotton, polycotton and polyester) were cleaned using sodium carbonate (0.15% by weight) solution in water.
The results are tabulated below in terms of cleaning efficacy.
Table 6: Effect of addition of electrolyte Ex Electrolyte AR460* after washing with No sodium carbonate) C* PC** PE***
7 Sodium chloride 6.8 5.6 4.5 8 Magnesium Chloride 9.1 19.9 12.4 9 Calcium chloride 26.3 32.4 30.9 10 - 9.8 1.5 2.8 From the results, it is clear that the addition of an electrolyte leads to further enhancement of cleaning efficacy, in particular for polycotton and polyester fabrics. Further, for cotton fabrics, calcium chloride in particular gives enhancement in cleaning efficacy.
Perfume deposition Protocol Allyl amyl glycollate was taken as a representative perfumery ingredient. Polymer A was polyacrylic acid having molecular mass of 450,000 and polymer B was polyvinyl pyrrolidone having molecular mass of 90000. The perfume was added together with both the polymers A and B each at 0.1%
by weight of the aqueous medium (Example 11 - pH 2.8), polymer A and polymer B alone each at 0.2% by weight of the aqueous medium (comparative example M - pH 3 and N - pH 7, respectively), whilst comparative example 0 (pH 7) was for untreated fabric. The perfume retention was evaluated for various types of fabrics. The fabrics were tested for perfume retention by a trained perfumer on the scale of 0 to 5 with score of 0 indicating no perfume impact and score of 5 indicating maximum perfume impact. The details are tabulated below.
Table 7: Deposition of perfume on fabrics Ex Perfume Perfume impact Perfume impact No impact score score score (Cotton) (Polycotton) (Polyester) 11 2.5 1.5 2.5 M 0.5 0.5 0.75 N 0.5 0.5 0.75 0 0.5 0.5 0.5 From the results tabulated above, it is clear that the perfume impact at 60 minutes is significantly higher for the fabric treated according to the process of the present invention.
Fluorescer deposition Following experiments were carried out using 2 ppm CBSX0 (CIBA) as fluorescer. Details of polymers A and B are tabulated below along with the results in terms of whiteness score as measured by reflectance value on cotton.
Table 8: Deposition of fluorescer on fabrics Ex No Polymer A Polymer B R460 (Cotton) 12 PAA (2.5%) PEG (2.5%) 95.9 P PAA (5%) - 94.7 Q - PEG (5%) 89.9 R - - 85.7 From the results, it is clear that the fluorescer deposition as indicated by whiteness score is enhanced when the fabric is treated with both the polymers A and B
according to the process of the present invention (Example 12) as compared with untreated fabric (Comparative example R) or fabric treated with only one of the polymers (Comparative Examples P and Q).
It will be appreciated that the above examples clearly and sufficiently describe the manner in which the process of the present invention can be practiced. It will be further appreciated that the process of the present invention is capable of meeting the object of providing a process for treatment of fabric that reduces soiling of fabrics, improves efficacy of subsequent cleaning, allows enhanced deposition of benefit agents and is effective on various types of fabrics including cotton, polycotton and polyester.
Effect of electrolyte Polymer A was polyacrylic acid of molecular mass 450,000 20 and polymer B was polyvinyl pyrrolidone of molecular mass 1,300,000. In all the examples, both the polymers were used at 0.1 % by weight of the aqueous medium. The effect of electrolyte addition was studied by adding various electrolytes at 0.1% by weight of the total aqueous medium.
The pH of aqueous media was in the range 2.7 to 3Ø The fabrics (cotton, polycotton and polyester) were cleaned using sodium carbonate (0.15% by weight) solution in water.
The results are tabulated below in terms of cleaning efficacy.
Table 6: Effect of addition of electrolyte Ex Electrolyte AR460* after washing with No sodium carbonate) C* PC** PE***
7 Sodium chloride 6.8 5.6 4.5 8 Magnesium Chloride 9.1 19.9 12.4 9 Calcium chloride 26.3 32.4 30.9 10 - 9.8 1.5 2.8 From the results, it is clear that the addition of an electrolyte leads to further enhancement of cleaning efficacy, in particular for polycotton and polyester fabrics. Further, for cotton fabrics, calcium chloride in particular gives enhancement in cleaning efficacy.
Perfume deposition Protocol Allyl amyl glycollate was taken as a representative perfumery ingredient. Polymer A was polyacrylic acid having molecular mass of 450,000 and polymer B was polyvinyl pyrrolidone having molecular mass of 90000. The perfume was added together with both the polymers A and B each at 0.1%
by weight of the aqueous medium (Example 11 - pH 2.8), polymer A and polymer B alone each at 0.2% by weight of the aqueous medium (comparative example M - pH 3 and N - pH 7, respectively), whilst comparative example 0 (pH 7) was for untreated fabric. The perfume retention was evaluated for various types of fabrics. The fabrics were tested for perfume retention by a trained perfumer on the scale of 0 to 5 with score of 0 indicating no perfume impact and score of 5 indicating maximum perfume impact. The details are tabulated below.
Table 7: Deposition of perfume on fabrics Ex Perfume Perfume impact Perfume impact No impact score score score (Cotton) (Polycotton) (Polyester) 11 2.5 1.5 2.5 M 0.5 0.5 0.75 N 0.5 0.5 0.75 0 0.5 0.5 0.5 From the results tabulated above, it is clear that the perfume impact at 60 minutes is significantly higher for the fabric treated according to the process of the present invention.
Fluorescer deposition Following experiments were carried out using 2 ppm CBSX0 (CIBA) as fluorescer. Details of polymers A and B are tabulated below along with the results in terms of whiteness score as measured by reflectance value on cotton.
Table 8: Deposition of fluorescer on fabrics Ex No Polymer A Polymer B R460 (Cotton) 12 PAA (2.5%) PEG (2.5%) 95.9 P PAA (5%) - 94.7 Q - PEG (5%) 89.9 R - - 85.7 From the results, it is clear that the fluorescer deposition as indicated by whiteness score is enhanced when the fabric is treated with both the polymers A and B
according to the process of the present invention (Example 12) as compared with untreated fabric (Comparative example R) or fabric treated with only one of the polymers (Comparative Examples P and Q).
It will be appreciated that the above examples clearly and sufficiently describe the manner in which the process of the present invention can be practiced. It will be further appreciated that the process of the present invention is capable of meeting the object of providing a process for treatment of fabric that reduces soiling of fabrics, improves efficacy of subsequent cleaning, allows enhanced deposition of benefit agents and is effective on various types of fabrics including cotton, polycotton and polyester.
Claims (8)
1.A process for treatment of a fabric comprising the steps of contacting the fabric with polymers A and B in an aqueous medium, wherein;
(a) polymer A is a homopolymer or copolymer of carboxylic acid that comprises polyacrylic acid or a copolymer thereof, and;
(b) polymer B is selected from the class of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid, and;
where polymers A and B are not of the same class, and the aqueous medium has pH less than 6, and wherein said homopolymer or copolymer of carboxylic acid is polyacrylic acid or a copolymer thereof.
(a) polymer A is a homopolymer or copolymer of carboxylic acid that comprises polyacrylic acid or a copolymer thereof, and;
(b) polymer B is selected from the class of homopolymers or copolymers of vinyl pyrrolidone, alkylene oxide, saccharides and carboxylic acid, and;
where polymers A and B are not of the same class, and the aqueous medium has pH less than 6, and wherein said homopolymer or copolymer of carboxylic acid is polyacrylic acid or a copolymer thereof.
2.A process as claimed in claim 1 wherein the aqueous medium comprises no more than 200 ppm anionic surfactant.
3.A process as claimed in claim 1 or 2 wherein said polymer A is selected from homopolymer or copolymer of vinyl alcohol or carboxylic acid.
4.A process as claimed in any one of claims 1 to 3 wherein said polymer B is selected from homopolymer or copolymer of vinyl pyrrolidone or alkylene oxide.
5. A process as claimed in any one of claims 1 to 4 wherein said aqueous medium comprises an electrolyte.
6. A process as claimed in claim 5 wherein said electrolyte is from 0.001 to 5% by weight of said medium.
7. A process as claimed in any one of claims 1 to 6 wherein pH of said aqueous medium is from 1 to 5.
8. A process as claimed in any one of claims 1 to 7 wherein the fabric is contacted with the polymers A and B either sequentially in any order, or simultaneously.
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PCT/EP2008/064764 WO2009077255A1 (en) | 2007-12-14 | 2008-10-31 | Process for treatment of a fabric |
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EP (1) | EP2220288B1 (en) |
JP (1) | JP5080652B2 (en) |
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AT (1) | ATE544901T1 (en) |
AU (1) | AU2008337741B2 (en) |
BR (1) | BRPI0820909B1 (en) |
CA (1) | CA2707805C (en) |
MY (1) | MY153922A (en) |
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EP2473589A1 (en) * | 2009-09-02 | 2012-07-11 | Unilever NV | Composition and process for treatment of a fabric |
EP2809757B1 (en) | 2012-01-31 | 2016-04-27 | Unilever N.V. | A composition and method for treating substrates |
WO2019057322A1 (en) * | 2017-09-21 | 2019-03-28 | Giesecke+Devrient Currency Technology Gmbh | Method for producing pigment fragments with a predefined internal and/or external contour using a crack-forming layer, and pigment fragments |
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GB994353A (en) * | 1960-06-13 | 1965-06-02 | Domestos Ltd | Improvements in detergent compositions |
GB1340517A (en) * | 1969-12-01 | 1973-12-12 | Burton Parsons Chemicals Inc | Ophthalmic solution |
US3689435A (en) * | 1970-07-27 | 1972-09-05 | Gaf Corp | Detergency compositions containing a synergistic mixture of pvp and pva |
US4007305A (en) * | 1974-12-23 | 1977-02-08 | Basf Wyandotte Corporation | Method of imparting nondurable soil release and soil repellency properties to textile materials |
JPS5945038B2 (en) * | 1977-07-19 | 1984-11-02 | ライオン株式会社 | cleaning composition |
SU836262A1 (en) * | 1979-08-01 | 1981-06-07 | Латвийский Научно-Исследовательскийинститут Легкой Промышленности | Composition for soil-repelling treatment of cellulose-fibre textiles |
EP0054325B1 (en) * | 1980-12-17 | 1984-04-11 | Unilever N.V. | Detergent composition with reduced soil-redeposition effect |
SU1141127A1 (en) * | 1983-01-06 | 1985-02-23 | Украинский Научно-Исследовательский И Конструкторско-Технологический Институт Бытового Обслуживания | Composition for soil-repelling treatment of textile articles |
GB8618635D0 (en) * | 1986-07-30 | 1986-09-10 | Unilever Plc | Detergent composition |
JPS6392700A (en) * | 1986-10-08 | 1988-04-23 | 花王株式会社 | Detergent composition |
DK1115938T3 (en) * | 1998-08-25 | 2003-09-08 | Clariant Finance Bvi Ltd | Aqueous preparations of UV-active agents, preparation and use thereof |
US6785989B2 (en) * | 2000-03-31 | 2004-09-07 | The Procter & Gamble Company | Methods and apparatus for removal of wrinkles from fabrics |
US7026278B2 (en) * | 2000-06-22 | 2006-04-11 | The Procter & Gamble Company | Rinse-added fabric treatment composition, kit containing such, and method of use therefor |
JP3965518B2 (en) * | 2002-04-26 | 2007-08-29 | 第一工業製薬株式会社 | Neutral cleaner |
GB0422026D0 (en) * | 2004-10-05 | 2004-11-03 | Unilever Plc | Laundry product |
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CA2707805A1 (en) | 2009-06-25 |
CN101889111A (en) | 2010-11-17 |
JP2011506788A (en) | 2011-03-03 |
BRPI0820909A2 (en) | 2015-07-28 |
CN101889111B (en) | 2013-01-23 |
ATE544901T1 (en) | 2012-02-15 |
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JP5080652B2 (en) | 2012-11-21 |
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