EP4118172B1 - Composition de nettoyage solide à faible pouvoir moussant - Google Patents
Composition de nettoyage solide à faible pouvoir moussant Download PDFInfo
- Publication number
- EP4118172B1 EP4118172B1 EP21708661.0A EP21708661A EP4118172B1 EP 4118172 B1 EP4118172 B1 EP 4118172B1 EP 21708661 A EP21708661 A EP 21708661A EP 4118172 B1 EP4118172 B1 EP 4118172B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- surfactant
- cleaning composition
- fatty acid
- alkyl
- 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.)
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- 239000000203 mixture Substances 0.000 title claims description 218
- 238000004140 cleaning Methods 0.000 title claims description 102
- 239000007787 solid Substances 0.000 title claims description 46
- 238000005187 foaming Methods 0.000 title description 13
- 239000004094 surface-active agent Substances 0.000 claims description 79
- 239000002736 nonionic surfactant Substances 0.000 claims description 68
- 239000006260 foam Substances 0.000 claims description 64
- -1 alkylbenzene sulfonate Chemical class 0.000 claims description 59
- 229920000642 polymer Polymers 0.000 claims description 56
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 53
- 239000000194 fatty acid Substances 0.000 claims description 53
- 229930195729 fatty acid Natural products 0.000 claims description 53
- 150000004665 fatty acids Chemical class 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000004744 fabric Substances 0.000 claims description 35
- 239000003795 chemical substances by application Substances 0.000 claims description 31
- 102000004190 Enzymes Human genes 0.000 claims description 28
- 108090000790 Enzymes Proteins 0.000 claims description 28
- 229940088598 enzyme Drugs 0.000 claims description 27
- 239000000344 soap Substances 0.000 claims description 26
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 24
- 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 claims description 21
- 125000005599 alkyl carboxylate group Chemical group 0.000 claims description 20
- 125000000217 alkyl group Chemical group 0.000 claims description 20
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 19
- 125000005907 alkyl ester group Chemical group 0.000 claims description 19
- 239000002518 antifoaming agent Substances 0.000 claims description 18
- 108091005804 Peptidases Proteins 0.000 claims description 17
- 239000004365 Protease Substances 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 125000000129 anionic group Chemical group 0.000 claims description 11
- 239000007844 bleaching agent Substances 0.000 claims description 11
- 108090001060 Lipase Proteins 0.000 claims description 9
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- 239000004367 Lipase Substances 0.000 claims description 9
- 125000002947 alkylene group Chemical group 0.000 claims description 9
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- 150000003839 salts Chemical class 0.000 claims description 9
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 8
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000000975 dye Substances 0.000 claims description 7
- 239000002304 perfume Substances 0.000 claims description 7
- 239000004753 textile Substances 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- 108010065511 Amylases Proteins 0.000 claims description 6
- 102000013142 Amylases Human genes 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 6
- 235000019418 amylase Nutrition 0.000 claims description 6
- 238000004900 laundering Methods 0.000 claims description 5
- 239000011976 maleic acid Substances 0.000 claims description 5
- 102100032487 Beta-mannosidase Human genes 0.000 claims description 4
- 108010059892 Cellulase Proteins 0.000 claims description 4
- 108010055059 beta-Mannosidase Proteins 0.000 claims description 4
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- 238000001035 drying Methods 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims 1
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- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 52
- 125000004432 carbon atom Chemical group C* 0.000 description 25
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 11
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- 229920006395 saturated elastomer Polymers 0.000 description 10
- 238000002791 soaking Methods 0.000 description 10
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- 230000008901 benefit Effects 0.000 description 9
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 9
- 229910019142 PO4 Inorganic materials 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 8
- 235000021317 phosphate Nutrition 0.000 description 8
- 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 7
- 239000002245 particle Substances 0.000 description 7
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- 239000000377 silicon dioxide Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid ester group Chemical group C(CCCCCCCCCCC)(=O)O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 150000004760 silicates Chemical class 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 229920002125 Sokalan® Polymers 0.000 description 5
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 5
- 238000007046 ethoxylation reaction Methods 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 150000002191 fatty alcohols Chemical class 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 230000000813 microbial effect Effects 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- 239000011591 potassium Substances 0.000 description 5
- 241000193830 Bacillus <bacterium> Species 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
- 108010056079 Subtilisins Proteins 0.000 description 4
- 102000005158 Subtilisins Human genes 0.000 description 4
- 108090000637 alpha-Amylases Proteins 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical group 0.000 description 4
- 150000007942 carboxylates Chemical class 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 241000193744 Bacillus amyloliquefaciens Species 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000005639 Lauric acid Substances 0.000 description 3
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- 108010022999 Serine Proteases Proteins 0.000 description 3
- 102000012479 Serine Proteases Human genes 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 241000223258 Thermomyces lanuginosus Species 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 102000004139 alpha-Amylases Human genes 0.000 description 3
- 150000001413 amino acids Chemical class 0.000 description 3
- 229940025131 amylases Drugs 0.000 description 3
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- 239000011575 calcium Substances 0.000 description 3
- 239000012876 carrier material Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000007859 condensation product Substances 0.000 description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
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- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 2
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- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- YGUMVDWOQQJBGA-VAWYXSNFSA-N 5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[(e)-2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C=1C=C(\C=C\C=2C(=CC(NC=3N=C(N=C(NC=4C=CC=CC=4)N=3)N3CCOCC3)=CC=2)S(O)(=O)=O)C(S(=O)(=O)O)=CC=1NC(N=C(N=1)N2CCOCC2)=NC=1NC1=CC=CC=C1 YGUMVDWOQQJBGA-VAWYXSNFSA-N 0.000 description 2
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- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 2
- 235000011180 diphosphates Nutrition 0.000 description 2
- SMVRDGHCVNAOIN-UHFFFAOYSA-L disodium;1-dodecoxydodecane;sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC SMVRDGHCVNAOIN-UHFFFAOYSA-L 0.000 description 2
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- GOLORTLGFDVFDW-UHFFFAOYSA-N 3-(1h-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one Chemical compound C1=CC=C2NC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 GOLORTLGFDVFDW-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
- C11D10/042—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on anionic surface-active compounds and soap
-
- 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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
- C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic surface-active compounds and soap
-
- 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
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0026—Low foaming or foam regulating 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
-
- 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
- C11D1/02—Anionic compounds
- C11D1/04—Carboxylic acids or salts 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
-
- 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
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
-
- 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
- C11D1/72—Ethers of polyoxyalkylene glycols
Definitions
- the present invention relates to a laundry cleaning composition; in particular a solid detergent composition having low or no foaming in the main wash, and which shows significant reduction in water consumption during rinsing.
- One way of saving water is to reuse the water and another way is to reduce the amount of water being used.
- Washing processes including laundry, dishwashing and other household cleaning processes, consumes large amounts of water throughout the world. These are daily chores in which the use of water and a detergent cannot be avoided.
- Foam is a significant consumer cue and acts as the primary reason by which a consumer perceives that a composition is having a cleaning effect.
- good foam is easy to generate, it also needs to be removed from the substrate after cleaning. So, there is a balance to be struck between generating a good foam and then removing it.
- Laundry formulations such as rinse aids have been used to help reduce the foam carried by the laundered fabric into the rinse water.
- Rinse aids reduces the amount of water used during rinsing.
- the use of rinse aids adds an extra step and the consume needs to use an additional product in the washing process.
- Some solutions towards addressing this problem of foaming at the rinse stage is by incorporating rinse triggered antifoams which act on the foam and suppresses it at the rinse stage.
- rinse triggered antifoam add to the amounts of chemicals incorporated in the composition and such compositions must be formulated carefully to avoid the antifoam being released during cleaning stage.
- the antifoams are generally expensive and provide no other performance benefit to the composition other than foam suppression. Therefore, it is desirable that their presence is minimised.
- Other compositions such as those disclosed in WO 93/18128 (Unilever) provide a low foaming liquid cleaning composition which shows a reduced tendency to form a stable foam.
- the liquid cleaning composition includes a hydrophobic oil, a first surfactant to form a sparingly soluble calcium salt in aqueous solutions and a second surfactant which is foaming and different from the first surfactant.
- the improved solid cleaning composition including specific anionic surfactants, nonionic surfactant and an alkaline builder salt, which suppresses formation of foam in the wash liquor even when a minor proportion of an antifoam is included.
- the inventive solid cleaning composition having specific anionic surfactants and a nonionic surfactant generate less foam than the existing detergent composition in water with varying degree of hardness.
- the cleaning composition of the present invention permits the consumer to use higher levels of detergent and still requiring less than 3 rinse, preferably a single rinse step to obtain complete removal of the foam, soapy feel and dirt in the rinse water. It was found that aqueous solutions of the cleaning composition herein generate very low degree of foam under conditions of vigorous and/or continuous agitation.
- detergent composition exhibits detergency performance at least equivalent to that of a full LAS-containing detergent composition.
- fabric fabrics
- clothing fabrics
- fabric article as interchangeably used herein, are intended to mean any article that is customarily cleaned in a conventional laundry process.
- the term refers non-specifically to any type of flexible material consisting of a network 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. It encompasses articles of clothing, linen, drapery, and clothing accessories.
- the term also encompasses other items made in whole or in part of fabric, such as tote bags, furniture covers, tarpaulins and the like.
- the term "low foaming" herein means that a foam height or a foam volume for the solid cleaning composition according to the present invention which is less than the foam height or foam volume which is achieved in comparable composition containing LAS anionic surfactant. It also includes a decrease in the duration of visible foam in a washing process cleaning soiled articles compared to a composition containing LAS anionic surfactant.
- a solid cleaning composition comprising:
- a solid cleaning composition having an anionic non-soap surfactant selected from a primary alkyl sulfate surfactant, alkyl ester fatty acid sulphonate or mixtures thereof, a water-soluble alkyl carboxylate salt of C 8 to C 18 fatty acid, a nonionic surfactant, 0 wt.% to 0.5 wt.% linear alkylbenzene sulfonate surfactant and a carbonate builder.
- an anionic non-soap surfactant selected from a primary alkyl sulfate surfactant, alkyl ester fatty acid sulphonate or mixtures thereof, a water-soluble alkyl carboxylate salt of C 8 to C 18 fatty acid, a nonionic surfactant, 0 wt.% to 0.5 wt.% linear alkylbenzene sulfonate surfactant and a carbonate builder.
- the solid cleaning composition according to the present invention includes a primary alkyl sulfate surfactant.
- primary alkyl sulfate surfactant refers to both the acid form and the neutralized salt form.
- the primary alkyl sulfate surfactant according to the present invention has the general formula: ROSO 3 - M + , wherein:
- R is a C 8 to C 18 alkyl, C 10 to C 15 alkyl, still preferably C 10 to C 14 alkyl and most preferably from C 12 to C 14 alkyl.
- R may preferably be a hydroxyalkyl having a C 10 to C 18 alkyl component, more preferably C 14 to C 18 , still preferably a C 12 to C 15 alkyl component.
- the primary alkyl sulfate surfactant has C 8 to C 18 alkyl chain, still preferably C 8 to C 16 alkyl chain and most preferably C 8 to C 14 alkyl chain.
- alkyl chains of C 12 to C 16 are preferred for lower wash temperatures (e.g., below about 50°C) and C 16 to C 18 alkyl chains are preferred for higher wash temperatures (e.g., above about 50°C).
- M is preferably hydrogen or an alkali metal cation selected from sodium, potassium or lithium, more preferably M is sodium.
- M may also be preferably selected from lithium, calcium, and magnesium, ammonium or substituted ammonium (e.g. methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations such as tetramethyl-ammonium and dimethyl piperidinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof, and the like.
- ammonium or substituted ammonium e.g. methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations such as tetramethyl-ammonium and dimethyl piperidinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, dieth
- the primary alkyl sulfate surfactant may exist in an acid form, or the acid form may be neutralized to form a surfactant salt, preferably a water-soluble salt form.
- Typical agents for neutralization include metal counterion bases, such as hydroxides, e.g., NaOH or KOH.
- Further suitable agents for neutralizing anionic surfactants in their acid forms include alkaline earth metal, alkali metal, ammonium, ammonia, amines, or alkanolamines (e.g., mono-, di-, and tri ethanolamine).
- alkanolamines include monoethanolamine, diethanolamine, triethanolamine, and other linear or branched alkanolamines known in the art; suitable alkanolamines include 2-amino-I-propanol, 1- 10 aminopropanol, monoisopropanolamine, or 1-amino-3-propanol.
- Amine neutralization may be done to a full or partial extent, e.g., part of the anionic surfactant mix may be neutralized with sodium or potassium and part of the anionic surfactant mix may be neutralized with amines or alkanolamines.
- the solid cleaning composition according to the present invention comprises from 1 wt.% to 45 wt.% by weight of primary alkyl sulfate surfactant.
- the solid cleaning composition comprises at least 2 wt.%, at least 4 wt.%, at least 5 wt.%, still preferably at least 6 wt.%, still preferably at least 8 wt.%, most preferably at least 10 wt.% of the primary alkyl sulfate surfactant, but typically not more than 40 wt.%, still preferably not more than 35 wt.%, most preferably not more than 25 wt.% primary alkyl sulfate surfactant based on the weight of the solid cleaning composition.
- the solid cleaning composition includes from 1 wt.% to 10 wt.%, 2 wt.% to 8 wt.%, still preferably 2 wt.% to 6 wt.%, most preferably from 2 wt.% to 4 wt.% by weight of primary alkyl sulfate surfactant.
- Alkyl ester fatty acid sulphonate surfactant Alkyl ester fatty acid sulphonate surfactant
- the cleaning composition according to the present invention includes an alkyl ester fatty acid sulphonate surfactant.
- the alkyl ester fatty acid sulphonate surfactant is methyl ester fatty acid sulphonate surfactant. More preferably it is a sodium C 16 to C 18 methyl ester sulphonate surfactant (MES). MES surfactant preferably has a purity of 80 to 90% and an average molecular weight of sodium salt of from 370 to 390 g/mol.
- the alkyl ester fatty acid sulphonate surfactant is sodium neutralized but may be neutralized with other traditional salts such as potassium and the like.
- the MES may also be neutralized in whole or in part, by divalent ions, example magnesium.
- the solid cleaning composition according to the present invention comprises from 4 wt% to 45 wt% by weight of alkyl ester fatty acid sulphonate surfactant.
- the solid cleaning composition comprises at least 5 wt%, still preferably at least 6 wt%, still preferably at least 8 wt%, most preferably at least 10 wt% of the alkyl ester fatty acid sulphonate surfactant, but typically not more than 40 wt%, still preferably not more than 35 wt%, most preferably not more than 25 wt% alkyl ester fatty acid sulphonate surfactant based on the weight of the solid cleaning composition.
- the solid cleaning composition includes from 4 wt% to 10 wt%, preferably 4 wt.% to 8 wt.% and most preferably from 4 wt.% to 6 wt.% by weight of alkyl ester fatty acid sulphonate surfactant.
- the anionic non-soap surfactant according to the present invention is predominantly an alkyl ester fatty acid sulphonate surfactant, most preferably all of the anionic non-soap surfactant according to the present invention is composed of an alkyl ester fatty acid sulphonate surfactant.
- the cleaning composition according to the present invention includes a water-soluble alkyl carboxylate salt of C 8 to C 18 fatty acid.
- Water soluble alkyl carboxylate salt of C 8 to C 18 fatty acid also known as "soaps".
- the term soap refers to carboxylate salts of fatty acids.
- the water-soluble alkyl carboxylate salt of the C 8 to C 18 fatty acid includes alkali metal soaps such as the sodium, potassium, ammonium, and alkyl ammonium salts of higher fatty acids containing from about 8 to about 18 carbon atoms, and preferably from about 8 to about 16 carbon atoms. More preferably from 8 to 14 carbon atoms.
- the fatty acid may preferably be saturated or an unsaturated fatty acid. More preferably saturated.
- the alkyl carboxylate salt of fatty acid (soap) content of the composition of the invention may comprise of a single alkyl carboxylate salt of fatty acid (soap compound) or a mixture of alkyl carboxylate salt of fatty acid (soap compounds). In some cases, a single fatty acid carboxylate is used.
- the counter ion may be a single counter ion or mixture of counter ions.
- Suitable counter ions include potassium and sodium ions as well as organic amine based counter ions such as those based on triethanolamine.
- the fatty acid carboxylate may be unsaturated or saturated.
- the fatty acid may comprise one or more double bond.
- the soap is more than 50 wt.% monounsaturated.
- the fatty acid may be a C 10 to C 30 compound, for example a C 15 to C 25 compound.
- a suitable fatty acid present in the water-soluble alkyl carboxylate salt is lauric acid.
- the soap is more than 50 wt.% a carboxylate salt of lauric acid.
- it may be the potassium salt.
- the soap may be more than 50 wt.% potassium laurate.
- the soap is more than 75 wt.% a carboxylate salt of lauric acid, for example more 90 wt.% or even more than 95 wt.%.
- the cleaning composition according to the present invention comprises from 1 wt.% to 45 wt.% of water-soluble alkyl carboxylate salt of C 12 to C 18 fatty acid.
- the cleaning composition comprises at least 3 wt.% , still preferably at least 5 wt.% , still preferably at least 8 wt.%, most preferably at least 10 wt.% of the water soluble alkyl carboxylate salt of C 12 to C 18 fatty acid, but typically not more than 40 wt.% , still preferably not more than 35 wt.% , most preferably not more than 25 wt.% water soluble alkyl carboxylate salt of C 12 to C 18 fatty acid based on the weight of the cleaning composition.
- the composition of the present invention includes from 1 wt.% to 10 wt.% of water-soluble alkyl carboxylate salt of C 12 to C 18 fatty acid.
- the cleaning composition according to the present invention includes a nonionic surfactant.
- Suitable nonionic surfactant includes the condensation products of aliphatic alcohols having from 1 to 25 moles of ethylene oxide.
- the alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 8 to 22 carbon atoms.
- Particularly preferred are the condensation products of alcohols having an alkyl group containing from 10 to 18 carbon atoms, preferably from 10 to 15 carbon atoms with from 2 to 18 moles, preferably 2 to 10 15, more preferably 5-12 of ethylene oxide per mole of alcohol.
- Highly preferred nonionic surfactants are the condensation products of Guerbet alcohols with from 2 to 18 moles, preferably 2 to 15, more preferably 5 to 12 of ethylene oxide per mole of alcohol.
- Nonionic surfactants of the amine oxide type for example N-coconut alkyl-N, N-dimethylamine oxide and N-tallow alcohol-N, N-dihydroxymethylamine oxide, and of the fatty acid alkanolamide type may also be suitable.
- a further class of preferred nonionic surfactants which may be used either as sole nonionic surfactant or in combination with other nonionic surfactants, are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably with 1 to 4 carbon atoms in the alkyl chain.
- Low-foaming nonionic surfactants are preferred. These includes but are not limited to nonionic surfactants from the group of alkoxylated alcohols. Alkoxylated, advantageously ethoxylated, in particular primary alcohols with preferably 8 to 18 C atoms and on average 1 to 12 mol of ethylene oxide (EO) per mol of alcohol, in which the alcohol residue may be linear or preferably methyl-branched in position 2 or may contain linear and methyl-branched residues in the mixture, as are usually present in oxo alcohol residues, are preferably used as nonionic surfactants.
- EO ethylene oxide
- alcohol ethoxylates with linear residues prepared from alcohols of natural origin with 12 to 18 C atoms, for example from oleyl alcohol, and on average 2 to 8 mol of EO per mol of alcohol are preferred.
- the preferred ethoxylated alcohols include for example C 12 to C 14 alcohols with 3 EO to 4 EO, C 9 to C 12 alcohol with 7 EO, C 13 to C 15 alcohols with 3 EO, 5 EO, 7 EO or 8 EO, C 12 to C 18 alcohols with 3 EO, 5 EO or 7 EO and mixtures of these, such as mixtures of C 12 to C 14 alcohol with 3 EO and C 12 to C 19 alcohol with 5 EO.
- the stated degrees of ethoxylation are statistical averages which for a specific product may be an integer or a fractional number.
- Preferred alcohol ethoxylates have a narrow homolog distribution (narrow range ethoxylates, NRE).
- fatty alcohols with more than 12 EO ethylene oxide groups
- examples of these are sources having narrow range of predominantly C 16 to C 18 fatty alcohol with 14 EO, 25 EO, 30 EO, 40 EO or 80 EO.
- Preferred C 16 to C 18 fatty alcohols with more than 12 EO have from 60 to 100 EO, and more preferably from 70 to 90 EO.
- Particularly preferred C 16 to C 18 fatty alcohols with more than 12 EO are C 16 to C 18 fatty alcohols with 80 EO.
- Nonionic surfactants from the group of alkoxylated alcohols are likewise particularly preferentially used.
- the nonionic surfactant preferably comprises propylene oxide units in its molecule.
- Such PO units preferably constitute up to 25 wt.%, more preferably up to 20 wt.% and even more preferably up to 15 wt.% of the entire molar mass of the nonionic surfactant.
- Particularly preferred nonionic surfactants are ethoxylated monohydroxyalkanols or alkylphenols which additionally comprise polyoxyethylene/polyoxypropylene block copolymer units.
- the alcohol or alkylphenol moiety of such nonionic surfactant molecules here preferably constitutes more than 30 wt.%, more preferably more than 50 wt.% and even more preferably more than 70 wt.% of the entire molar mass of such nonionic surfactants.
- Preferred cleaning compositions are characterized in that they contain ethoxylated and propoxylated nonionic surfactants, in which the propylene oxide units constitute in each molecule up to 25 wt.%, more preferably up to 20 wt.% and even more preferably up to 15 wt.% of the entire molar mass of the nonionic surfactant.
- the nonionic surfactant is an alkoxylated nonionic surfactants, in particular ethoxylated primary alcohols and mixtures of these surfactants with structurally complex surfactants such as polyoxypropylene/ polyoxyethylene/ polyoxypropylene ((PO/EO/PO) surfactants).
- structurally complex surfactants such as polyoxypropylene/ polyoxyethylene/ polyoxypropylene ((PO/EO/PO) surfactants).
- PO/EO/PO polyoxypropylene/ polyoxyethylene/ polyoxypropylene
- Such (PO/EO/PO) nonionic surfactants are furthermore distinguished by good foam control.
- nonionic surfactants with melting points above room temperature contain 40 to 70% of a polyoxypropylene/ polyoxyethylene/ polyoxypropylene block polymer blend, which contains 75 wt.% of a reverse block copolymer of polyoxyethylene and polyoxypropylene with 17 mol of ethylene oxide and 44 mol of propylene oxide and 25 wt.% of a block copolymer of polyoxyethylene and polyoxypropylene, initiated with trimethylolpropane and containing 24 mol of ethylene oxide and 99 mol of propylene oxide per mol of trimethylolpropane.
- Nonionic surfactants which have proved to be particularly preferred for the purposes of the present invention are low-foaming nonionic surfactants which comprise alternating ethylene oxide and alkylene oxide units.
- surfactants with EO-AO-EO-AO blocks are in turn preferred, with in each case one to ten EO or AO groups being attached to one another before being followed by a block of the respective other groups.
- Preferred nonionic surfactants are those of the general formula
- R 1 denotes a straight-chain or branched, saturated or mono- or polyunsaturated C 6 to C 24 alkyl or alkenyl residue
- each group R 2 or R 3 is mutually independently selected from -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 -CH 3 , -CH(CH3) 2 and the indices w, x, y, z mutually independently denote integers from 1 to 6.
- the preferred nonionic surfactants of the above formula may be produced by known methods from the corresponding alcohols R 1 -OH and ethylene or alkylene oxide. Residue R 1 in the above formula may vary depending on the origin of the alcohol.
- residue R 1 comprises an even number of carbon atoms and is generally unbranched, preference being given to linear residues from alcohols with 12 to 18 C atoms, for example alcohols formed from source having C 12 to C 14 , alcohols formed from source having C 16 to C 18 , source having a narrow range of alcohol with predominantly C 16 to C 18 carbon atoms, or oleyl alcohol.
- Alcohols obtainable from synthetic sources are for example Guerbet alcohols or residues methyl-branched in position 2 or linear and methyl-branched residues in a mixture as are conventionally present in oxo alcohol residues.
- nonionic surfactants are those in which R 1 the above formula denotes an allyl residue with 6 to 24, more preferably with 8 to 20, even more preferably with 9 to 15 and still even more preferably with 9 to 11 carbon atoms.
- butylene oxide may in particular be considered as the alkylene oxide unit which alternates with the ethylene oxide unit in preferred nonionic surfactants.
- R 2 or R 3 is mutually independently selected from -CH 2 CH 2 -CH 3 , -CH(CH3) 2 are also suitable.
- Nonionic surfactant of the above formula which are preferably used are those in which the R 2 or R 3 denotes a residue - CH 3 , w and x mutually independently denote values of 3 or 4 and y and z mutually independently denotes values of 1 or 2.
- Preferred nonionic surfactants are those which comprise a C 9 to C 15 alkyl residue with 1 to 4 ethylene oxide units, followed by 1 to 4 propylene oxide units, followed by 1 to 4 ethylene oxide units, followed by 1 to 4 propylene oxide units.
- Nonionic surfactants of the general formula R 1 -CH(OH)CH 2 O-(AO) w -(A'O) x -(A"O) y -(A′′′O) z- R 2 in which R 1 or R 2 mutually independently denote a straight-chain or branched, saturated or mono- or polyunsaturated C 2 to C 40 alkyl or alkenyl residue; A, A', A" and A′′′ mutually independently denote a residue from the group -CH 2 CH 2 , - CH 2 CH 2 -CH 2 , -CH 2 -H(CH 3 ), -CH 2 -CH 2 -CH 2 -CH 2 , -CH 2 -CH(CH 3 )-CH 2 -, -CH 2 -CH(CH 2 -CH 3 ); and w, x, y and z denote values between 0.5 and 90, with x, y and/or z possibly also being 0, are preferred according to the invention
- preferred end group-terminated poly(oxyalkylated) nonionic surfactants are those which, according to the formula R 1 O[CH 2 CH 2 O] x CH 2 CH(OH)R 2 , in addition to a residue R 1 , which denotes linear or branched, saturated or unsaturated aliphatic or aromatic hydrocarbon residues with 2 to 30 carbon atoms, preferably with 4 to 22 carbon atoms, furthermore comprise a linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon residue R 2 with 1 to 30 carbon atoms, x denoting values between 1 and 90, preferably values between 30 and 80 and in particular values between 30 and 60.
- Particularly preferred nonionic surfactants are those of the formula R 1 O[CH 2 CH(CH 3 )O] x [CH 2 CH 2 O] y CH 2 CH(OH)R 2 , in which R 1 denotes a linear or branched aliphatic hydrocarbon residue with 4 to 18 carbon atoms or mixtures thereof.
- R 2 denotes a linear or branched hydrocarbon residue with 2 to 26 carbon atoms or mixtures thereof and x denotes values between 0.5 and 1.5 and y denotes a value of at least 15.
- nonionic surfactants are the end group-terminated poly(oxyalkylated) nonionic surfactants of the formula R 1 O[CH 2 CH(R 3 )O] x [CH 2 ] k CH(OH)[CH 2 ] j OR 2 , in which R 1 and R 2 denote linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon residues with 1 to 30 carbon atoms, R 3 denotes H or a methyl, ethyl, n-propyl, iso-propyl, n-butyl, 2-butyl or 2-methyl-2-butyl residue, x denotes values between 1 and 30, k and j denote values between 1 and 12, preferably between 1 and 5.
- each R 3 in the above formula R 1 O[CH 2 CH(R 3 )O] x [CH 2 ] k CH(OH)[CH 2 ] j OR 2 may be different.
- R 1 and R 2 are preferably linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon residues with 6 to 22 carbon atoms, residues with 8 to 18 C atoms being particularly preferred.
- H, -CH 3 or-CH 2 CH 3 are particularly preferred for the residue R 3 .
- Particularly preferred values for x are in the range from 1 to 20, in particular from 6 to 15.
- each R 3 in the above formula may be different if x ⁇ 2.
- the value 3 for x has been selected here by way of example and may perfectly well be larger, the range of variation increasing as the value of x rises and for example comprising a large number of (EO) groups combined with a small number of (PO) groups or vice versa.
- R 1 , R 2 and R 3 are defined as above and x denotes numbers from 1 to 30, preferably from 1 to 20 and in particular from 6 to 18.
- Particularly preferred surfactants are those in which the residues R 1 and R 2 comprise 9 to 14 C atoms, R 3 denotes H and x assumes values from 6 to 15.
- the stated C chain lengths and degrees of ethoxylation or degrees of alkoxylation of the above-stated nonionic surfactants are statistical averages which, for a specific product, may be an integer or a fractional number. Due to production methods, commercial products of the stated formulae do not in the main consist of an individual representative, but instead of mixtures, whereby not only the C-chain lengths but also the degrees of ethoxylation or degrees of alkoxylation may be averages and consequently fractional numbers.
- nonionic surfactant are according to the formula: wherein n is from 0 to 5 and m from 10 to 50, more preferably wherein n is from 0 to 3 and m is from 15 to 40, and even more preferably wherein n is 0 and m is from 18 to 25.
- nonionic surfactants are commercially available, e.g. under the tradename Dehypon WET (Supplier: BASF) and Genapol EC50 (Supplier Clariant).
- n is from 0 to 5 and m from 10 to 50, more preferably wherein n is from 0 to 3 and m is from 15 to 40, and even more preferably wherein n is 0 and m is from 18 to 25;
- Yet another preferred nonionic surfactant(s) is according to the formula: wherein n is from 0 to 5 and m from 10 to 50, more preferably wherein n is from 0 to 3 and m is from 15 to 40, and even more preferably wherein n is 0 and m is from 18 to 25.
- the cleaning composition includes a C 12 to C 18 alkoxylated alcohol, comprising 3 to 9 alkylene oxide units per molecule, preferably 3 to 7 alkylene oxide units per molecule.
- a preferred nonionic surfactant is Laundrocilin ex. Clariant having a nonionic surfactant with 7 EO group.
- the composition has 50 wt.% to 55 wt.% nonionic, 35 wt.% to 40 wt.% silicates and a coating having 5 wt.% to 10 wt.% sodium carbonate.
- the cleaning composition according to the present invention comprises from 1 wt.% to 45 wt.% of nonionic surfactant, more preferably the composition includes 1 wt.% to 25 wt.% and still more preferably from 1 wt.% to 5 wt.% nonionic surfactant.
- the cleaning composition comprises at least 2 wt.%, still preferably at least 4wt.%, still preferably at least 6 wt.%, most preferably at least 10 wt.% of the nonionic surfactant, but typically not more than 40 wt.% , still preferably not more than 35 wt.%, most preferably not more than 25 wt.% of nonionic surfactant based on the weight of the cleaning composition.
- the cleaning composition includes from 1wt.% to 3 wt.% nonionic surfactant.
- the solid cleaning composition according to the present invention preferably includes from 1 wt.% to 25 wt.% surfactant which surfactant includes anionic non-soap surfactant selected from primary alkyl sulfate surfactant, alkyl ester fatty acid sulphonate surfactant or mixtures thereof; a water-soluble alkyl carboxylate salt of C 8 to C 18 fatty acid and nonionic surfactant as described herein above. It is further preferred that the solid cleaning composition includes from 1 wt.% to 20 wt.%. further preferably from 1 wt.% to 15 wt.% surfactant content in the solid cleaning composition.
- the solid cleaning composition according to the invention may include other surfactants.
- other anionic surfactant in the cleaning composition is present in an amount of less than 5 wt.%, still preferably less than 3 wt.%, further preferably less than 2 wt.%, still further preferably less than 1 wt.%, most preferably the solid cleaning composition of the present invention is substantially free of other anionic surfactants.
- the composition according to the present invention includes from 0 wt.% to 0.5 wt.% linear alkylbenzene sulfonate surfactant.
- the linear alkylbenzene sulfonate surfactant has an C 5 to C 20 alkyl group.
- the composition preferably includes from 0 wt.% to 0.3 wt.% linear alkylbenzene sulfonate surfactant, more preferably the composition has less than 0.2 wt.%, still more preferably less than 0.1 wt.% linear alkylbenzene sulfonate surfactant and most preferably the composition is free of any deliberately added linear alkylbenzene sulfonate surfactant.
- the other anionic surfactant may include but is not limited to the anionic sulfonate surfactant.
- anionic surfactants include, alkyl ether sulfate, alkyl ethoxy sulfate (AES), alkyl ethoxy carboxylates (AEC), secondary alkyl sulfates (SAS) and combinations thereof. More preferably, anionic surfactants selected from sodium dodecyl benzene sulfonate (Na-LAS), sodium lauryl ether sulfate (SLES), and combinations thereof.
- Na-LAS sodium dodecyl benzene sulfonate
- SLES sodium lauryl ether sulfate
- the cleaning composition of the present invention includes less than 5 wt.% of anionic surfactant selected from the group consisting of C 10 to C 20 linear alkyl benzene sulphonates, C 10 to C 20 linear or branched alkylethoxy sulfates having an average degree of ethoxylation ranging from about 0.1 to about 5 (preferably from about 0.3 to about 4 and more preferably from about 0.5 to about 3), or mixtures thereof.
- anionic surfactant selected from the group consisting of C 10 to C 20 linear alkyl benzene sulphonates, C 10 to C 20 linear or branched alkylethoxy sulfates having an average degree of ethoxylation ranging from about 0.1 to about 5 (preferably from about 0.3 to about 4 and more preferably from about 0.5 to about 3), or mixtures thereof.
- the cleaning composition of the present invention are substantially free from other anionic surfactants as described herein above.
- the terms “substantially free of "substantially free from” used herein means that the indicated material is at the very minimum not deliberately added to the composition to form part of it, or, preferably, is not present at analytically detectable levels. It is meant to include compositions whereby the indicated material is present only as an impurity in one of the other materials deliberately included.
- the indicated material may be present, if at all, at a level of less than 1 wt.%, or less than 0.1 wt.%, or less than 0.01 wt.%, or even 0 wt.%, by weight of the cleaning composition.
- composition of the present invention includes a carbonate builder.
- the carbonate builder includes alkaline earth metal and alkali metal carbonates as disclosed in the German patent application No. 2,321,001 .
- Preferred alkali carbonates are sodium and/or potassium carbonate of which sodium carbonate is particularly preferred. It is further preferred that sodium carbonate makes up at least 75 wt.%, more preferably at least 85 wt.% and even more preferably at least 90 wt.% of the total weight of the alkali carbonate builder.
- the cleaning composition of the present invention preferably includes from 15 wt.% to 50 wt.% carbonate builder, more preferably from 30 wt.% to 40 wt.% carbonate builder.
- the cleaning composition comprises at least 16 wt.% , still preferably at least 18 wt.% , still preferably at least 20 wt.%, most preferably at least 25 wt.% of the nonionic surfactant, but typically not more than 45 wt.% , still preferably not more than 40 wt.% , most preferably not more than 35 wt.% of carbonate builder based on the weight of the cleaning composition.
- the solid cleaning composition of the present invention may include other inorganic non-carbonate builder.
- the other preferred builders may be selected from the group consisting of silicates, silica, zeolites phosphates or mixtures thereof.
- Yet other non-carbonate builder may be organic builders which includes but are not limited to as succinates, carboxylates, malonates, polycarboxylates, citric acid or a salt thereof.
- the composition of the present invention is substantially free of phosphate containing builders. It is highly preferably that the composition comprises from 0 wt.% to 0.5 wt.% phosphate builders, most preferably there is no deliberately added phosphate builders.
- the phosphate builders includes but not limited to alkali metal or ammonium salt of tripolyphosphates, pyrophosphate, pyrophosphate and orthophosphate.
- Suitable silicates include the water-soluble sodium silicates with an SiO 2 : Na 2 O ratio of from 1.0 to 2.8, with ratios of from 1.6 to 2.4 being preferred, and 2.0 ratio being most preferred.
- the silicates may be in the form of either the anhydrous salt or a hydrated salt.
- Sodium silicate with an SiO 2 : Na 2 O ratio of 2.0 is the most preferred silicate.
- Silicates are preferably present in the detergent compositions in accordance with the invention at a level of from 5 wt.% to 50 wt.% by weight of the composition, more preferably from 10 wt.% to 40 wt.% by weight.
- the cleaning compositions of the invention comprises very limited amount of, i.e., up to 2 wt.% insoluble particulate matter other than the non-carbonate builder.
- particulate matter may include an abrasive or may even be a silicate like sodium silicate.
- the compositions may contain one type of particulate matter or a mixture of different particles while still being inside the range of up to 2 wt.% of the total composition.
- Moh's index of such particulate matter is in the range of 2.5 to 6.0.
- the particulate matter could be one or more of clay, calcite, dolomite, olive stone, feldspar, apatite, fluorite and hematite, kyanite, magnetite, orthoclase and pumice. 15 Whenever present, the average particle size of such particles is 0.5 pm to 400 pm, more preferably 10 pm to 200 pm.
- the solid cleaning composition according to the present invention preferably includes a foam suppressing agent.
- the foam suppressing agent preferably a non-soap foam suppressing agent is present at a level from 0.01 wt.% to 15 wt.%, preferably from 0.02 wt.% to 10 wt.%, more preferably from 0.05 wt.% to 5 wt.%, most preferably 0.5wt% to 5wt% of the composition.
- Suitable foam suppressing agent for use herein may comprise essentially any known antifoam compound, including, for example silicone antifoam compounds and 2-alkyl alcanol antifoam compounds.
- foam suppressing agent it is meant herein any compound or mixtures of compounds which act such as to depress the foaming or foam produced by a solution of a detergent composition, particularly in the presence of agitation of that solution.
- Particularly preferred foam suppressing agent for use herein are silicone foam suppressing agent defined herein as any antifoam compound including a silicone component.
- Such silicone antifoam compounds also typically contain a silica component.
- Preferred silicone antifoam compounds are the siloxanes, particularly the polydimethylsiloxanes having trimethylsilyl end blocking units.
- the foam suppressing agent is a combination of an antifoam compound and silica.
- the antifoam compound is a silicone antifoam compound most preferably polydimethyl siloxane.
- the antifoam compound is present at a level of from 50 wt.% to 99 wt.%, preferably 75 wt.% to 95 wt.% of the foam suppressing agent; and silica is present at a level of from 1 wt.% to 50 wt.%, preferably 5 wt.% to 25 wt.% by weight of the foam suppressing agent.
- the foam suppressing agent having the combination of silica and antifoam compound is incorporated at a level of from 5 wt.% to 50 wt.%, preferably 10 wt.% to 40 wt.% by weight in the detergent composition.
- the foam suppressing agent preferably includes a dispersant compound, most preferably comprising a silicone glycol rake copolymer with a polyoxyalkylene content of 72% to 78% and an ethylene oxide to propylene oxide ratio of from 1:0.9 to 1:1.1, at a level of from 0.5% to 10%, preferably 1% to 10% by weight; a particularly preferred silicone glycol rake copolymer of this type is DCO544, commercially available from DOW Coming under the tradename DCO544; Additionally, the foam suppressing agent may include an inert carrier fluid compound, most preferably comprising a C 16 -C 18 ethoxylated alcohol with a degree of ethoxylation of from 5 to 50, preferably 8 to 15, at a level of from
- EP-A-0210731 includes a combination of silicone antifoam compound and an organic carrier material having a melting point in the range 50°C to 85°C, wherein the organic carrier material comprises a monoester of glycerol and a fatty acid having a carbon chain containing from 12 to 20 carbon atoms.
- EP-A-0210721 discloses other preferred particulate foam suppressing systems wherein the organic carrier material is a fatty acid or alcohol having a carbon chain containing from 12 to 20 carbon atoms, or a mixture thereof, with a melting point of from 45°C to 80°C.
- foam suppressing agents includes silicone-based foam suppressing agent, hydrocarbon foam suppressing agent, monostearyl phosphate foam suppressing agent or combinations thereof.
- foam suppressing agent comprise polydimethylsiloxane or mixtures of silicone, such as polydimethylsiloxane, aluminosilicate and polycarboxylic polymers, such as copolymers of maleic and acrylic acid and monocarboxylate fatty acid.
- composition of the invention thereof can be made via a variety of conventional methods known in the art and those which includes but is not limited to the mixing of ingredients, including dry-mixing, compaction such as agglomerating, extrusion, tabletting, or spray-drying of the various compounds comprised in the detergent component, or mixtures of these techniques, whereby the components herein also can be made by for example compaction, including extrusion and agglomerating, or spray-drying.
- the detergent composition may be made by any of the conventional processes, especially preferred is the technique of slurry making and spray drying.
- compositions herein can take a variety of physical solid forms including forms such as powder, granule, ribbon, noodle, paste, tablet, flake, pastille and bar, and preferably the composition is in the form of powder, granules or a tablet, still preferably the composition is in the form of a powder.
- the composition may be in the form of a unit dose formulation, delayed delivery formulation, detergent contained on or in a porous substrate or nonwoven sheet, and other suitable forms that may be apparent to one skilled in the art in view of the teachings herein.
- the cleaning compositions may have a form selected from powder, unit dose or pouch form, tablet, gel, paste, bar, or flake.
- the composition is for manual-washing.
- the cleaning composition of the present invention is a laundry detergent composition.
- the composition is in the form of a solid. Further preferably the composition is in the form of a spray - dried powder.
- compositions preferably have a density of more than 350 grams/litre, more preferably more than 450 grams/litre or even more than 570 grams/litre.
- the solid cleaning composition according to the present invention preferably has an alkaline pH, generally in the region of pH 9 to 11 when measured with a 10 wt.% dilution in de-ionised water at 25°C.
- Suitable pH buffering components for use herein are selected from the group consisting of alkali metal salts of carbonates, bicarbonate, citric, citrate, polycarbonates, sesquicarbonates, silicates, polysilicates, borates, metaborates, phosphate, stannates, aluminates and mixtures thereof.
- the cleaning composition of the present invention may preferably include one or more of the optional ingredients selected from the group consisting of cleaning and care polymers, enzyme, enzyme stabilizing system, brighteners, fabric hueing agents, perfume and bleach.
- the cleaning polymer includes but is not limited to soil release polymer, carboxylate polymers, antiredeposition polymers, cellulosic polymers, care polymers, dye-transfer inhibiting polymer, amphiphilic alkoxylated grease cleaning polymers, clay soil cleaning polymers, soil suspending polymers or mixtures thereof.
- Suitable carboxylate polymer includes polymers such as a maleate/acrylate random copolymer or polyacrylate homopolymer.
- Suitable carboxylate polymers includes polyacrylate homopolymers having a molecular weight of from 4,000 Da to 9,000 Da; maleate/acrylate random copolymers having a molecular weight of from 30,000 Da to 100,000 Da, or from 50,000 Da to 100,000 Da, or from 60,000 Da to 80,000 Da.
- homopolymeric or copolymeric carboxylic acids such as polyacrylic acid, polymethacrylic acid, polymaleic acid, copolymers of acrylic acid or Methacrylic acid with maleic acid and maleic acid with vinyl methyl ether, these polymeric acids being present as free acids or preferably as sodium salts.
- Preferred representatives of this group are sodium polyacrylate and sodium salts of acrylic acid-maleic acid copolymers having a weight ratio of acrylic acid: maleic acid of 10: 1 to 1: 1, preferably 7: 1 to 2: 1.
- These compounds generally have molecular weights of 3,000 to 150,000, preferably 5,000 to 100,000.
- Soil release polymers are designed to modify the surface of the fabric to facilitate the ease of removal of soil.
- soil release polymers are based on or derivatives of polyethylene glycol/vinyl acetate copolymers or polyethylene glycol terephthalate polyesters and combinations thereof.
- Preferred soil release polymer includes polymers of aromatic dicarboxylic acids and alkylene glycols (including polymers containing polyalkylene glycols), as described in WO2009/153184 , EP2692842 and WO2014/019903 .
- Suitable soil release polymers are sold by Clariant under the TexCare ® series of polymers, e.g.
- TexCare ® SRN240 TexCare ® SRN100, TexCare ® SRN170, TexCare ® SRN300, TexCare ® SRN325, TexCare ® SRA100 and TexCare ® SRA300.
- Other suitable soil release polymers are sold by Rhodia under the Repel-o-Tex ® series of polymers, e.g. Repel-o-Tex ® SF2, Repel-o-Tex ® SRP6 and Repel-o-Tex ® Crystal.
- a preferred polymer is selected from the group consisting of polyester soil release polymer, both end-capped and non-end-capped sulphonated PET/POET polymers, both end-capped and non-end-capped unsulphonated PET/POET polymers or combinations thereof.
- the levels of these soil release polymer in the adjunct particle is from 3 wt.% to 15 wt.% at least 5 wt.%, still preferably at least 6 wt.%, still preferably at least 6.5 wt.%, most preferably at least 7 wt.%, but typically not more than 14 wt.%, still preferably not more than 13 wt.%, most preferably not more than 12 wt.%.
- Anti-redeposition polymers are designed to suspend or disperse soil.
- antiredeposition polymers are polyethylene glycol polymers, polycarboxylate polymers, polyethyleneimine polymers or mixtures thereof.
- the antiredeposition polymer is an acrylate polymer, maleic anhydride polymer or a copolymer of acrylic acid and maleic acid and combinations thereof.
- Such polymers are available from BASF under the trade name Sokalan ® CP5 (neutralised form) and Sokalan ® CP45 (acidic form).
- Suitable antiredeposition polymers are ethoxylated and or propoxylated polyethylene imine or polycarboxylate materials, for example, acrylic acid-based homo or copolymers available under the trade mark ACUSOL from Dow Chemical, Alcosperse from Akzonobel or Sokolan from BASF.
- Suitable care polymers include cellulosic polymers that are cationically modified or hydrophobically modified. Such modified cellulosic polymers can provide anti- abrasion benefits and dye lock benefits to fabric during the laundering cycle. Suitable cellulosic polymers include cationically modified hydroxyethyl cellulose. Other suitable care polymers include dye lock polymers, for example the condensation oligomer produced by the condensation of imidazole and epichlorhydrin, preferably in ratio of 1:4:1. A suitable commercially available dye lock polymer is Polyquart ® FDI (Cognis). Preferably the adjunct particle includes from 0.01 % to 10%, preferably from 0.05% to 0.5% by weight of care polymer.
- the cleaning composition is preferably substantially free of phosphate based sequestering polymers.
- substantially free it is meant herein that no phosphate based sequestering polymers is deliberately added.
- composition of the present invention preferably includes one or more enzymes.
- Preferred examples of the enzymes include those which provide cleaning performance and/or fabric care benefits.
- suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, xyloglucanase, phospholipases, esterases, cutinases, pectinases, mannanases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, G-glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and amylases, or mixtures thereof.
- a typical combination is an enzyme cocktail that may comprise, for example, a protease and lipase in conjunction with one or more of amylase, mannanase and cellulase.
- the aforementioned additional enzymes may be present at levels from about 0.00001% to about 2%, from about 0.0001% to about 1% or from 0.001% to about 0.5% enzyme protein by weight of the detergent composition.
- Suitable proteases include metalloproteases and serine proteases, including neutral or alkaline microbial serine proteases, such as subtilisins (EC 3.4.21.62).
- Suitable proteases include those known to a person skilled in the art and preferably from animal, vegetable or microbial origin. In one aspect, such suitable protease may be of microbial origin.
- the suitable proteases include chemically or genetically modified mutants of the aforementioned suitable proteases.
- the suitable protease may be a serine protease, such as an alkaline microbial protease or/and a trypsin-type protease. Examples of suitable neutral or alkaline proteases include:
- Suitable commercially available protease enzymes include those sold under the trade names Alcalase ® , Savinase ® , Primase ® , Durazym ® , Polarzyme ® , Kannase ® , Liquanase ® , Liquanase Ultra ® , Savinase Ultra ® , Ovozyme ® , Neutrase ® , Everlase ® and Esperase ® by Novozymes A/S (Denmark), those sold under the tradename Maxatase ® , Maxaca ® I, Maxapem ® , Properase ® , Purafect ® , Purafect Prime ® , Purafect Ox ® , FN3 ® , FN4 ® , 10 Excellase ® and Purafect OXP ® by Genencor International, those sold under the tradename Opticlean ® and Optimase by Solvay Enzymes.
- Suitable alpha-amylases include those of bacterial or fungal origin. Chemically or genetically modified mutants (variants) are included.
- a preferred alkaline alpha-amylase is derived from a strain of Bacillus, such as Bacillus licheniformis, Bacillus amyloliquefaciens, Bacillus stearothermophilus, Bacillus subtilis, or other Bacillus sp. , such as Bacillus sp. NCIB 12289, NCIB 12512, NCIB 12513,DSM 9375 ( USP 7,153,818 ) DSM 12368, DSMZ no. 12649, KSM AP1378 ( WO 97/00324 ), KSM K36 or KSM K38 ( EP 1,022,334 ).
- Preferred amylases include:
- Suitable commercially available alpha-amylases include DURAMYL ® , LIQUEZYME ® , TERMAMYL ® , TERMAMYL ULTRA ® , NATALASE ® , SUPRAMYL ® , STAINZYME ® , STAINZYME PLUS ® , FUNGAMYL ® and BAN ® (Novozymes A/S, Bagsvaerd, Denmark), 15 KEMZYM ® AT 9000 Biozym Biotech Trading GmbH Wehlistrasse 27b A-1200 Wien Austria, RAPIDASE ® , PURASTAR ® , ENZYSIZE ® , OPTISIZE HT PLUS ® , POWERASE ® and PURASTAR OXAM ® (Genencor International Inc., Palo Alto, California) and KAM ® (Kao, 14-10 Nihonbashi Kayabacho, 1-chome, Chuo-ku Tokyo 103-8210,Ja
- such enzymes may be selected from the group consisting of: lipases, including "first cycle lipases".
- the lipase is a first-wash lipase, preferably a variant of the wild-type lipase from Thermomyces lanuginosus comprising one or more of the T231R and N233R mutations.
- the wild-type sequence is the 269 amino acids (amino acids 23 -291) of the Swissprot accession number Swiss-Prot 059952 (derived from Thermomyces lanuginosus (Humicola lanuginosa)).
- Preferred lipases would include those sold under the tradenames Lipex ® and Lipolex ® .
- other preferred enzymes include microbial-derived endoglucanases exhibiting endo-beta-1, 4-glucanase activity (E.C. 3.2.L4), including a bacterial polypeptide endogenous to a member of the genus Bacillus which has a sequence of at least 90%, 94%, 97% and even 99% identity to the amino acid sequence SEQ ID NO:2 in 7,141,403B2) and mixtures thereof.
- Suitable endoglucanases are sold under the tradenames Celluclean ® and Whitezyme ® (Novozymes A/S, Bagsvaerd, Denmark).
- Pectate lyases sold under the tradenames Pectawash ® , Pectaway ® , Xpect ® and mannanases sold under the tradenames Mannaway ® (all from Novozymes A/S, Bagsvaerd, Denmark), and Purabrite ® (Genencor International Inc., Palo Alto, California).
- the enzyme-containing compositions described herein may optionally comprise from 0.001% to 10%, in some examples from about 0.005% to about 8%, and in other examples, from about 0.01% to about 6%, by weight of the composition, of an enzyme stabilizing system.
- the enzyme stabilizing system can be any stabilizing system which is compatible with the detersive enzyme. Such a system may be inherently provided by other formulation actives, or be added separately, e.g., by the formulator or by a manufacturer of detergent-ready enzymes.
- Such stabilizing systems can, for example, comprise calcium ion, boric acid, propylene glycol, short chain carboxylic acids, boronic acids, chlorine bleach scavengers and mixtures thereof, and are designed to address different stabilization problems depending on the type and physical form of the cleaning composition.
- a reversible protease inhibitor such as a boron compound, including borate, 4-formyl phenylboronic acid, phenylboronic acid and derivatives thereof, or compounds such as calcium formate, sodium formate and 1,2-propane diol may be added to further improve stability.
- Optical brighteners or other brightening or whitening agents including fluorescers may be incorporated at levels from 0.01% to 1.2%, by weight of the composition.
- Commercial brighteners suitable for the present invention can be classified into subgroups, including but not limited to: derivatives of stilbene, pyrazoline, coumarin, benzoxazoles, carboxylic acid, methinecyanines, dibenzothiophene-5, 5- dioxide, azoles, 5- and 6-membered-ring heterocycles, and other miscellaneous agents.
- Preferred commercially available Brighteners includes Tinopal AMS-GX by Ciba Geigy Corporation, Tinopal UNPA-GX by Ciba-Geigy Corporation, Tinopal 5BM-GX by Ciba-Geigy Corporation. These also includes DASCC and CBSX.
- the brighteners may be added in particulate form or as a premix with a suitable solvent, for example nonionic surfactant, monoethanolamine, propane diol.
- the composition may comprise a fabric hueing agent (sometimes referred to as shading, bluing or whitening agents).
- hueing agent provides a blue or violet shade to fabric.
- Hueing agents can be used either alone or in combination to create a specific shade of hueing and/or to shade different fabric types. This may be provided for example by mixing a red and green-blue dye to yield a blue or violet shade.
- Hueing agents may be selected from any known chemical class of dye, including but not limited to acridine, anthraquinone (including polycyclic quinones), azine, azo (e.g., monoazo, disazo, trisazo, tetrakisazo, polyazo), including 30 premetallized azo, benzodifurane and benzodifuranone, carotenoid, coumarin, cyanine, diazahemicyanine, diphenylmethane, formazan, hemicyanine, indigoids, methane, naphthalimides, naphthoquinone, nitro and nitroso, oxazine, phthalocyanine, pyrazoles, stilbene, styryl, triarylmethane, triphenylmethane, xanthenes and mixtures thereof.
- Suitable fabric hueing agents include dyes, dye-clay conjugates, and organic and inorganic pigments.
- the solid cleaning composition according to the present invention preferably includes a perfume.
- suitable perfume includes those well known to the person skilled in the art.
- the perfume may be in the form of free oils, encapsulated perfume or combinations thereof.
- the solid cleaning composition according to the present invention preferably includes a bleach.
- bleach suitable for the present invention includes metal percarbonates, particularly sodium salts, organic peroxyacid bleaches, combination of organic peroxyacid bleach precursor and hydrogen peroxide source and combinations thereof.
- the composition of the present invention preferably includes from 0.1 wt.% 10 wt.% bleach.
- a third aspect of the present invention disclosed is a method of laundering fabrics using a solid cleaning composition according to any one of the preceding claims comprising the step of:
- a fourth aspect of the present invention is use of a combination of an anionic non-soap surfactant selected from a primary alkyl sulfate surfactant or alkyl ester fatty acid sulphonate surfactant or mixtures thereof; a water-soluble alkyl carboxylate salt of C 8 to C 18 fatty acid; a nonionic surfactant; and, a carbonate builder in a solid cleaning composition for providing low or no foam during washing.
- a comparative cleaning composition (Ex A) with LAS surfactant was prepared having the formulation as provided in Table 1.
- Two cleaning compositions (Ex 1 and Ex 2) according to the present invention were prepared in which a primary alkyl sulfate, a nonionic surfactant and a alkyl carboxylate salt of C 8 to C 18 fatty acid (soap) as provided in Table 1 was prepared.
- a fixed amount of the composition of Comparative example ExA was weighed and diluted in 5 Litres of water taken in a transparent container to provide a wash liquor having a concentration of 2.5 grams of the composition per litre of water.
- the water used for preparing the wash liquor had a hardness of 24FH (French Hardness; Ca:Mg; 2:1).
- the prepared wash liquor was whisked vigorously using hand for 20 seconds. Thereafter the height of the foam generated was determined using a measuring scale. The foam height at this stage (pre-soaking stage) was recorded.
- the foam height data is provided in Table 1.
- the soaked fabric was then rinsed in batches. In each rinse batch 9 litres of clean water were used. After each rinse, the foam height (rinse stage) in the rinse container was measured and recorded. The data is provided in Table 1.
- a fixed amount of the composition of Comparative example Ex A was weighed and diluted in 10.6 Litres of clean water taken in a transparent container to provide a wash liquor having a concentration of 2.5 grams of the composition per litre of water.
- the water used for preparing the wash liquor had a hardness of 24FH (French Hardness;Ca:Mg; 2:1).
- the wash load consisted of 50% cotton and 50% polycotton fabric. Additionally, stain swatches with a dimension of 10X 10 cm 2 of the stain type ICS-1X1 +ICS-2 X1 +Grass KCoX 1 (ex. TUV Pvt. Ltd.) was added into a wash liquor along with the wash load. The above wash liquor was left undisturbed for a period of 30 minutes, to allow the wash load to soak in the wash liquor. Thereafter the soaked wash load was manually washed and rinsed in batches. In each batch 1.2 litres of clean rinse water was used.
- Soil release index is a measure of the amount of a stain present on fabric that is removed during a washing process. The intensity of any stain after washing is measured by means of a reflectometer and expressed in terms of the difference between the stained fabric and a clean fabric giving ⁇ E * for each stain.
- L*, a*, and b* are the coordinates of the CIE 1976 (L*, a*, b*) colour space, determined using a standard reflectometer. ⁇ E* can be measured before and after the stain is washed, to give AE*bw (before wash) and AE*aw (after wash).
- SRI of 100 means complete removal of a stain. The higher the SRI value, the greater is the stain removal potential.
- ⁇ E after wash is the difference in L a b colour space between the clean (unwashed) fabric and the stain after wash. So a ⁇ E after wash of zero means a stain that is completely removed. Therefore, a SRI aw (aw: after wash) of 100 is a completely removed stain.
- the clean (or virgin) fabric is an 25 "absolute standard" which is not washed. For each experiment, it refers to an identical piece of fabric to that to which the stain is applied. Therefore, its point in L a b colour space stays constant.
- Example A (wt%)
- Example 1 (wt%)
- Example 2 (wt%)
- LAS 14 0 0
- Nonionic granules # 0 2 2
- Soap powder @ 0 3 3
- Sodium carbonate 25 25
- Zeolite/other flow aid 15
- 1 Antifoam 0 0 1
- Fillers, moisture and miscellaneous ingredients Upto 100 Up to 100 Up to 100 Foam height before soaking 12 cm 3 cm 0 cm Foam height after soaking 8 cm 0 cm 0 cm Foam height in rinse water 2.5 cm 0 cm 0 cm
- Number of buckets used for rinsing 3 to 4 1 1 *Primary alkyl sulfate ex. Galaxy Surfactants Ltd. # Nonionic granules ex. Clariant under the trade name Laundroclin NI 111. @ Soap powder was procured from JLL.
- the data in table 1 shows that the foam height of the composition prepared according to the present invention (Ex 1, Ex 2) is significantly lower than the comparative composition (Ex A), further the amount of water required to completely rinse the fabric washed in the composition according to the present invention is lower (9 litres of clean water) as compared to the comparative composition (27 to 36 litres of clean water).
- Table 2 Delta SRI (stain removal) Stain type Comp Ex A Ex 1 Particulate stain (Yellow pottery) 78.22 80.16 Oily fatty stain (Cooking oil/violet dye) 67.68 74.22 Enzymatic stain (Chocolate drink) 75.29 77.29 Bleachable stain (Black coffee) 80.43 82.1
- the solid cleaning composition according to the present invention suitable for use in a front load washing machine was prepared as shown in table 3. Also, a composition according to the present invention where the non-soap anionic surfactant is an alkyl ester fatty acid sulphonate surfactant was prepared and evaluated for foamability according to the method detailed in Example 1. The detailed formulation and the measured foamability data are included in Table 3.
- the data in table 1 shows that when the composition of the present invention was used in a front load machine no foam was noticed during the main wash cycle as compared to the conventional front load composition (Ex B). Also the hand wash composition in prepared according to the present invention (Ex 4) having MES as the non-soap anionic surfactant shows no foam formation during the soaking and rinse stage and required only 9 litres of water for complete rinsing and required only 1 rinse.
- Example 3 A qualitative evaluation of the cleaning performance of the detergent composition according to the present invention (Ex 3) was conducted with a panel of 8 consumers.
- the consumer evaluated the detergent compositions by washing their daily wash load for 7 days using the composition according to the present invention and then for the next 7 days with their regular conventional detergent composition (Ex B).
- Example 4 the feedback from the consumer were collected and the details are summarized in Table 4 below.
- Table 4 Parameters evaluated Consumer feedback Cleaning benefits
- the clothes washed with detergent composition according to the present invention (Ex 3) provided better whiteness.
- Fabric care benefits The clothes washed with the detergent composition according to the present invention (Ex 3) provided the fabrics with better softness and brightness. Foam performance The duration of the rinse cycle in the machine could be reduced when the composition according to the present invention (Ex 3) was used.
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Claims (15)
- Composition de nettoyage solide comprenant :i) un tensioactif anionique autre que le savon choisi parmi un tensioactif de sulfate d'alkyle primaire ou tensioactif de sulfonate d'acide gras d'ester alkylique ou des mélanges de ceux-ci ;ii) un sel de carboxylate d'alkyle soluble dans l'eau d'acide gras en C8 à C18 ;iii) un tensioactif non ionique ;iv) un adjuvant de carbonate et,v) 0 % en masse à 0,5 % en masse de tensioactif de sulfonate d'alkylbenzène linéaire.
- Composition de nettoyage solide selon la revendication 1, dans laquelle la composition comprend de 20 % en masse à 50 % en masse d'adjuvant de carbonate.
- Composition de nettoyage solide selon la revendication 1, dans laquelle le tensioactif de sulfate d'alkyle primaire présente une chaîne alkyle en C8 à C18, encore mieux chaîne alkyle en C14 à C18.
- Composition selon la revendication 1, dans laquelle le tensioactif non ionique est un alcool alcoxylé en C12 à C18, comprenant de 3 à 9 unités d'oxyde d'alkylène par molécule, de préférence 3 à 7 unités d'oxyde d'alkylène par molécule.
- Composition selon l'une quelconque des revendications précédentes, dans laquelle la composition comprend un agent antimousse autre que le savon dans une quantité de 0,5 % en masse à 5 % en masse dans la composition.
- Composition selon l'une quelconque des revendications précédentes, dans laquelle la composition présente un pH de 9 à 11, lorsque mesuré en préparant une solution à 10 % de la composition dans de l'eau déminéralisée à 25°C.
- Composition selon l'une quelconque des revendications précédentes, comprenant un colorant, une teinture, une teinture de nuançage, un pigment, un agent de teinte de textile, un azurant optique ou des combinaisons de ceux-ci.
- Composition selon l'une quelconque des revendications précédentes, comprenant un parfum.
- Composition selon l'une quelconque des revendications précédentes, comprenant une enzyme.
- Composition selon la revendication 9, dans laquelle l'enzyme est choisie dans le groupe consistant en amylase, mannanase, lipase, protéase, cellulase ou des combinaisons de celles-ci.
- Composition selon l'une quelconque des revendications précédentes, comprenant un polymère antiredéposition, de préférence un polymère d'acrylate, polymère d'anhydride maléique ou copolymère d'acide acrylique et maléique ou des combinaisons de ceux-ci.
- Composition selon l'une quelconque des revendications précédentes, comprenant un polymère de libération des salissures, de préférence un polymère PET-POET.
- Composition selon l'une quelconque des revendications précédentes, comprenant un agent de blanchiment.
- Procédé de réduction du nombre de rinçages pendant un cycle de lavage, le procédé comprenant les étapes de :i) addition d'une composition de nettoyage solide selon l'une quelconque des revendications 1 à 10 précédentes à de l'eau pour former une liqueur de lavage ;ii) mise en contact d'un article textile avec la liqueur de lavage pendant un cycle de lavage principal d'un procédé de blanchisserie ;iii) rinçage de l'article textile avec de l'eau où l'étape de rinçage implique moins de 3 rinçages, de préférence un rinçage unique ; et,iv) éventuellement séchage de l'article textile.
- Utilisation d'une combinaison d'un tensioactif anionique autre que le savon choisi parmi un tensioactif de sulfate d'alkyle primaire ou tensioactif de sulfonate d'acide gras d'ester alkylique ou de mélanges de ceux-ci ; un sel soluble dans l'eau d'acide gras en C8 à C18 ; un tensioactif non ionique ; et, un adjuvant de carbonate dans une composition de nettoyage solide pour fournir peu ou pas de mousse pendant le lavage.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN202021010283 | 2020-03-11 | ||
EP20170764 | 2020-04-22 | ||
PCT/EP2021/055349 WO2021180546A1 (fr) | 2020-03-11 | 2021-03-03 | Composition de nettoyage solide à faible moussage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4118172A1 EP4118172A1 (fr) | 2023-01-18 |
EP4118172B1 true EP4118172B1 (fr) | 2023-09-27 |
Family
ID=74797956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21708661.0A Active EP4118172B1 (fr) | 2020-03-11 | 2021-03-03 | Composition de nettoyage solide à faible pouvoir moussant |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4118172B1 (fr) |
CN (1) | CN115279877A (fr) |
BR (1) | BR112022018106A2 (fr) |
WO (1) | WO2021180546A1 (fr) |
ZA (1) | ZA202208765B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3077050A1 (fr) | 2017-09-26 | 2019-04-04 | Ecolab Usa Inc. | Compositions antimicrobiennes et virocides acides/anioniques et leurs utilisations |
Citations (3)
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DE2243306A1 (de) | 1972-09-02 | 1974-03-21 | Henkel & Cie Gmbh | Schaumregulierte waschmittel, insbesondere fuer trommelwaschmaschinen |
WO1996028529A1 (fr) | 1995-03-11 | 1996-09-19 | The Procter & Gamble Company | Composition detergente comprenant un ether de polysaccharide non ionique et un tensio-actif anionique sans savon |
WO1998055568A1 (fr) | 1997-06-02 | 1998-12-10 | Henkel Kommanditgesellschaft Auf Aktien | Agents de lavage ou de nettoyage a pouvoir nettoyant eleve |
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US6093A (en) | 1849-02-06 | Horatio allen | ||
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CA992832A (en) | 1972-04-28 | 1976-07-13 | The Procter And Gamble Company | Crystallization seed-containing composition |
GB8518871D0 (en) | 1985-07-25 | 1985-08-29 | Dow Corning Ltd | Detergent foam control agents |
GB8518872D0 (en) | 1985-07-25 | 1985-08-29 | Dow Corning Ltd | Detergent foam control agents |
BR9306035A (pt) | 1992-03-06 | 1997-11-18 | Unilever Nv | Composição de limpeza líquida aquosa de baixo espumamento e aditivo para uso como antiespumante em uma composição de limpeza |
GB9307493D0 (en) * | 1993-04-08 | 1993-06-02 | Procter & Gamble | Detergent compositions |
EP0808363B1 (fr) | 1995-02-03 | 2009-05-27 | Novozymes A/S | Technique de mise au point de mutants d'amylase-alpha dotes de proprietes predefinies |
JP3025627B2 (ja) | 1995-06-14 | 2000-03-27 | 花王株式会社 | 液化型アルカリα−アミラーゼ遺伝子 |
BR9714873A (pt) * | 1997-10-10 | 2000-10-03 | Procter & Gamble | Uma composição de detergente |
GB9825560D0 (en) * | 1998-11-20 | 1999-01-13 | Unilever Plc | Particulate laundry detergent compositons containing nonionic surfactant granules |
US6403355B1 (en) | 1998-12-21 | 2002-06-11 | Kao Corporation | Amylases |
KR100787392B1 (ko) | 1999-03-31 | 2007-12-21 | 노보자임스 에이/에스 | 알칼리 α-아밀라제 활성을 가지는 폴리펩티드 및 그것을코드하는 핵산 |
RU2003105683A (ru) | 2000-07-28 | 2004-08-20 | Хенкель Кгаа (De) | Новый амилолитический фермент из bacillus sp.а7-7(dsm12368), а также моющее и чистящее средство с этим новым амилолитическим ферментом |
GB0124308D0 (en) * | 2001-10-10 | 2001-11-28 | Unilever Plc | Detergent compositions |
EP1558717B1 (fr) * | 2002-11-04 | 2008-12-24 | Unilever Plc | Composition de detergent de lessive |
CN113549606B (zh) | 2004-07-05 | 2024-07-16 | 诺维信公司 | 具有改变特性的α-淀粉酶变异体 |
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CA2728378A1 (fr) | 2008-06-16 | 2009-12-23 | Unilever Plc | Une methode de nettoyage des tissus au moyen d'une composition detergente liquide versable a tres faible teneur en savon |
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EP2692842B1 (fr) | 2012-07-31 | 2014-07-30 | Unilever PLC | Compositions concentrées de détergent liquide |
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-
2021
- 2021-03-03 BR BR112022018106A patent/BR112022018106A2/pt unknown
- 2021-03-03 WO PCT/EP2021/055349 patent/WO2021180546A1/fr active Search and Examination
- 2021-03-03 EP EP21708661.0A patent/EP4118172B1/fr active Active
- 2021-03-03 CN CN202180020622.9A patent/CN115279877A/zh active Pending
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2022
- 2022-08-03 ZA ZA2022/08765A patent/ZA202208765B/en unknown
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DE2243306A1 (de) | 1972-09-02 | 1974-03-21 | Henkel & Cie Gmbh | Schaumregulierte waschmittel, insbesondere fuer trommelwaschmaschinen |
WO1996028529A1 (fr) | 1995-03-11 | 1996-09-19 | The Procter & Gamble Company | Composition detergente comprenant un ether de polysaccharide non ionique et un tensio-actif anionique sans savon |
WO1998055568A1 (fr) | 1997-06-02 | 1998-12-10 | Henkel Kommanditgesellschaft Auf Aktien | Agents de lavage ou de nettoyage a pouvoir nettoyant eleve |
Also Published As
Publication number | Publication date |
---|---|
CN115279877A (zh) | 2022-11-01 |
WO2021180546A1 (fr) | 2021-09-16 |
EP4118172A1 (fr) | 2023-01-18 |
ZA202208765B (en) | 2024-01-31 |
BR112022018106A2 (pt) | 2022-10-25 |
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