CA2215795A1 - Improvements relating to light duty cleaning - Google Patents
Improvements relating to light duty cleaning Download PDFInfo
- Publication number
- CA2215795A1 CA2215795A1 CA002215795A CA2215795A CA2215795A1 CA 2215795 A1 CA2215795 A1 CA 2215795A1 CA 002215795 A CA002215795 A CA 002215795A CA 2215795 A CA2215795 A CA 2215795A CA 2215795 A1 CA2215795 A1 CA 2215795A1
- Authority
- CA
- Canada
- Prior art keywords
- alkyl
- surfactant composition
- surfactant
- carrier
- electrolyte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 76
- 239000004094 surface-active agent Substances 0.000 claims abstract description 73
- 238000000034 method Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000008719 thickening Effects 0.000 claims abstract description 14
- 238000004851 dishwashing Methods 0.000 claims abstract description 9
- 239000003463 adsorbent Substances 0.000 claims abstract description 8
- -1 alkyl ether sulphates Chemical class 0.000 claims description 36
- 239000003792 electrolyte Substances 0.000 claims description 32
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 19
- 125000000217 alkyl group Chemical group 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 229960003237 betaine Drugs 0.000 claims description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims 2
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims 1
- 239000004744 fabric Substances 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract description 3
- 238000013265 extended release Methods 0.000 abstract description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
- 238000010790 dilution Methods 0.000 description 13
- 239000012895 dilution Substances 0.000 description 13
- 239000012141 concentrate Substances 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- 239000011734 sodium Substances 0.000 description 8
- 239000000243 solution Substances 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
- 239000002736 nonionic surfactant Substances 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- 125000000129 anionic group Chemical group 0.000 description 5
- 239000003752 hydrotrope Substances 0.000 description 5
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 4
- 239000000969 carrier Substances 0.000 description 4
- 150000004996 alkyl benzenes Chemical class 0.000 description 3
- 239000002280 amphoteric surfactant Substances 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- 239000003093 cationic surfactant 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
- 239000002657 fibrous material Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 244000060011 Cocos nucifera Species 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 229920002907 Guar gum Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QZXSMBBFBXPQHI-UHFFFAOYSA-N N-(dodecanoyl)ethanolamine Chemical compound CCCCCCCCCCCC(=O)NCCO QZXSMBBFBXPQHI-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 2
- 229930006000 Sucrose Natural products 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229930182478 glucoside Natural products 0.000 description 2
- 239000000665 guar gum Substances 0.000 description 2
- 229960002154 guar gum Drugs 0.000 description 2
- 235000010417 guar gum Nutrition 0.000 description 2
- SUMDYPCJJOFFON-UHFFFAOYSA-N isethionic acid Chemical class OCCS(O)(=O)=O SUMDYPCJJOFFON-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920001983 poloxamer Polymers 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- 239000002453 shampoo Substances 0.000 description 2
- KSAVQLQVUXSOCR-UHFFFAOYSA-M sodium lauroyl sarcosinate Chemical compound [Na+].CCCCCCCCCCCC(=O)N(C)CC([O-])=O KSAVQLQVUXSOCR-UHFFFAOYSA-M 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000005720 sucrose Substances 0.000 description 2
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- HOVAGTYPODGVJG-UVSYOFPXSA-N (3s,5r)-2-(hydroxymethyl)-6-methoxyoxane-3,4,5-triol Chemical compound COC1OC(CO)[C@@H](O)C(O)[C@H]1O HOVAGTYPODGVJG-UVSYOFPXSA-N 0.000 description 1
- BCFOOQRXUXKJCL-UHFFFAOYSA-N 4-amino-4-oxo-2-sulfobutanoic acid Chemical class NC(=O)CC(C(O)=O)S(O)(=O)=O BCFOOQRXUXKJCL-UHFFFAOYSA-N 0.000 description 1
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- UCWMWNHWCYYDTD-UHFFFAOYSA-N N-carboxyglycine Chemical class OC(=O)CNC(O)=O UCWMWNHWCYYDTD-UHFFFAOYSA-N 0.000 description 1
- 108091006629 SLC13A2 Proteins 0.000 description 1
- 239000004141 Sodium laurylsulphate Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 229920013806 TRITON CG-110 Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 229960000686 benzalkonium chloride Drugs 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical class OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- CADWTSSKOVRVJC-UHFFFAOYSA-N benzyl(dimethyl)azanium;chloride Chemical compound [Cl-].C[NH+](C)CC1=CC=CC=C1 CADWTSSKOVRVJC-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 description 1
- 229940071160 cocoate Drugs 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- JMGZBMRVDHKMKB-UHFFFAOYSA-L disodium;2-sulfobutanedioate Chemical compound [Na+].[Na+].OS(=O)(=O)C(C([O-])=O)CC([O-])=O JMGZBMRVDHKMKB-UHFFFAOYSA-L 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical group CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000002194 fatty esters Chemical class 0.000 description 1
- 229940083124 ganglion-blocking antiadrenergic secondary and tertiary amines Drugs 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 150000008131 glucosides Chemical class 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- OIKBVOIOVNEVJR-UHFFFAOYSA-N hexadecyl 6-methylheptanoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)CCCCC(C)C OIKBVOIOVNEVJR-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- HOVAGTYPODGVJG-UHFFFAOYSA-N methyl beta-galactoside Natural products COC1OC(CO)C(O)C(O)C1O HOVAGTYPODGVJG-UHFFFAOYSA-N 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-N protonated dimethyl amine Natural products CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 1
- 108700004121 sarkosyl Proteins 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229940045885 sodium lauroyl sarcosinate Drugs 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- AUPJTDWZPFFCCP-GMFCBQQYSA-M sodium;2-[methyl-[(z)-octadec-9-enyl]amino]ethanesulfonate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCCN(C)CCS([O-])(=O)=O AUPJTDWZPFFCCP-GMFCBQQYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical class [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000002888 zwitterionic surfactant Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
-
- 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
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/94—Mixtures with anionic, cationic or non-ionic 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
- 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
- C11D1/29—Sulfates of polyoxyalkylene ethers
-
- 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
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/90—Betaines
-
- C11D2111/18—
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Coin-Freed Apparatuses For Hiring Articles (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
The present invention is concerned with improvements relating to light duty cleaning and in particular to improvements relating to manual dish-washing. The invention provides a process which comprises the steps of: a) treating an adsorbent carrier such as a cloth or more preferably a sponge with a surfactant composition which is capable of thickening on the addition of water, b) treating the combination of the carrier and surfactant composition with water, and c) subsequent to step (b) performing a cleaning operation with the carrier. An advantage of this process is that the surfactant composition thickens within the carrier and is retained therein to provide an extended release of surfactant from the carrier.
Description
CA 0221~79~ 1997-09-18 WO 96/32464 1 ~ ~ 3~ 283 IMPROVt~:r~ s RP~T~TTNG TO T-TGHI~ l:)UTY rT~ANIMG
Te~n~ca]. Fiel~
The present invention is concerned with improvements relating to light duty cleaning and in particular to improvements relating to manual dishwashing.
sackarol~n~ of the Inv~ntion It is known that the viscosity of certain surfactant solutions can be influenced by the concentration of electrolyte in the surfactant solution. WO 93/08247 (Clorox: 1991) discloses that surfactant systems containing alkyl ether sulphate systems can be thickened with the addition of an appropriate amount of electrolyte.
EP 574086 (Colgate: 1992) discloses how the salts in a composition may affect the viscosity of the composition.
Such technology is known and used in the formulation of shampoo and other personal washing compositions where the concentration of electrolyte and surfactant is often selected to give a peak viscosity for the surfactant system chosen. It is known that the addition of excess electrolyte does not result in further thickening but 'salts-out' the surfactant and results in a lowering of viscosity.
It is known to prepare compositions which contain an excess of electrolyte such that they become thicker on dilution. EP 254653 (Cotelle SA and Henkel: 1986) relates to dilution-thickening concentrates in general and covers compositions which are thickened with excess NaCl.
CA 022l~79~ l997-09-l8 ~3656 WO ~ ;.......................... ; .......... ..... ...
~Amended 7 March 1997 ) WO 95/02664 (Jeyes Group: 1993) discloses a li~uid concentrate for dilution with water tQ give a thickened product. The concentrate comprises: an alkyl ether sulphate, optional further anionic or nonionic or amphoteric, optional cationic alone or in combination with nonionic, electrolyte and/or hydrotrope. The compositions disclosed in the above-mentioned documents can be sold as concentrates and are intended for dilution before use to give a thickened composition. Such rheological properties are considered advantageous for the cleaning of hard sur~aces as they prevent the product running off the surface. With shampoo compositions, it is also advantageous for the product to thicken in the presence o~
water such that it is not washed of the skin rapidly.
WO-A-9416680 relates to dilution-thickening personal washing compositions which comprise 20-60% surfactant other than soap or primary alcohol sulphate and 1-20%
electrolyte it has a sufficiently low viscosity for packing and dispensing but will thicken in use to a sufficiently high viscosity that it does not run off skin or hair when applied. The compositions which are disclosed in detail in WO-A-9416680 comprise ether sulphate and betaine surfactants and sodium chloride as an electrolyte. WO-A-9416680 refers to JP63-270533 which teaches dilution-thickening compositions based on soaps or primary alcohol sulphates as polyhydric alcohols.
In the art of manual dishwashing it is known to prepare a very dilute solution of surfactant (typically less that 0.1%wt surfactant in water) and immerse the articles to be cleaned in this solution. This is known as 'bowl-washing' in the art. Dilution-thickening hand dishwashing compositions are known. Liquid dilution-thickening compositions are known for use in hand dishwash processes of the "bowl-washing" type. WO 93/03129 (Unilever: 1991) ~MEN~~~SHEET
~ 20~
/365~ WO
(Amended 7 March 1997) ,-. , - , , - ,, ... .. .. .. ..
- 2a -discloses a concentrated light duty li~uid which contains:
a mixture of anionic and nonionic, and 3-6 carbon alkane diol so]vent as a hydrotrope In a further method of manual dishwashing it is known to apply a concentrated surfactant composition directly into the articles to be cleaned Compositions useful for this purpose may take the form of gels or pastes and may be applied to the surface of the articles with a cloth or sponge. In a second, alternative method, it is known to prepare a washing solution and transfer this to the ~ surface of the articles, using an adsorbent carrier. For the purposes of the present invention the term adsorbent E~r,~D S~
CA 0221~795 1997-09-18 ~f65 6 WO -; ,; ;. . .. .. . ,~
~ ~mended 7 March 1997) carriers includes articles such as a cloth or sponge. The operative consideration is that the carrier can be used to carry the washing solution to the articles to be cleaned.
One difficulty with this second alternative method is that the surfactant content of the carrier rapidly becomes depleted in use and needs to be replenished. In order to solve this problem it has been known to provide carriers which comprise a support means such as steel wool and a solid surfactant composition impregnated thereupon. These gradually release surfactant over a period of time.
~ However, once the surfactant is exhausted it is generally not possible to replenish the supply.
Brie~ Descri~tion of the Invention We have now determined that the time for which the carrier can be used before the surfactant borne thereupon is exhausted can be significantly increased by use of method wherein the surfactant composition is thickened on dilution, within the carrier. This enables the carrier to be treated with surfactant which thickens within the carrier so as to replenish the store of surfactant held therein.
Accordingly, the present invention provides a light duty cleanin~ process which comprises the steps of:
a) treating an adsorbent carrier with a light duty cleaning, surfactant composition which is capable of thickening on the addition of water, b) treating the combination of the carrier and surfactant composition with water, and, AMEN~ED SHEET
b ~_ CA 0221~79~ 1997-09-18 - ~ WO . . ..... ..
~ - ~ ended 7 March 1997) ~' ~ - 4 -~' c) subseguent to steps (a) and (b) performing a cleaning operation with the carrier.
It is believed that the use of a dilution thickening composition in combination with a carrier causes the surfactant to be retained on the carrier and released over a signi~icantly longer period of time. Therefore in the method of the present invention the increased viscosity on dilution of selected compositions is beneficially combined with the delivering features of a porous substrate to extend the working lifetime of the substrate during the ~ cleaning process The present invention also provides a kit of parts comprising:
a) a light duty cleaning, surfactant composition which is capable of thickening on the addition of water, and, b) an adsorbent carrier.
The invention is described in more detail below with particular reference to manual dishwashing processes.
While tl~e preferred cleaning process according to the present invention is a manual dishwashing process other cleaning processes including personal washing are not intended to be excluded from the scope of the invention.
Detailed Descri~tion of the Invention Typically, the compositions of the present invention comprise at least one surfactant whose solution viscosity is strongly influenced by the prevailing electrolyte ~ 4 J- ~ CA 02215795 1997-09-18 ded 7 March 1997) - 4a -/
concentration. While other means by which the viscosity can be increased on dilution are known, the use of an AMENDED SHEET
CA 0221~79~ 1997-09-18 ,~3656 WO
/ (Amended 7 March 1997 ~/ ' - .
electrolyte is preferred. In preferred embodiments of the invention the thickening of the diluted concentrate is effected by the presence of selected surface active agents whose thickening effect, in the concentrate, is reduced by the presence o~ an excess of dissolved electrolyte. Thus, upon dilution of the concentrate, the concentration of dissolved electrolyte is reduced and the surface active agent component is then capable of exerting its thickening effect.
In practical embodiments of the invention, the carrier, which is preferably a sponge, is treated with the surfactant composition either by dipping at least a part of the carrier in the composition or by otherwise exposing the carrier to the surfactant composition, such as by pouring or otherwise dispensing the surfactant composition onto the carrier. The combination of the carrier and the composition is treated with water by dipping the combination into water. As a result of the dilution of the electrolyte which occurs, the electrolyte concentration falls below that which is sufficient to prevent the surfactants from thickening and the viscosity of the surfactant composition rises. As described above, this increase in viscosity causes the surfactant to be retained on the carrier and released over a significantly longer period of time.
Preferred surfactant concentrations range from 2-40~wt on product. Levels of total surfactant in the range 7.5-30%wt are particularly preferred.
Preferred electrolyte concentrations range from 1-30%wt with levels of 4-9~wt being most particularly preferred.
AMEN~EDS~E~
.
CA 0221~79~ 1997-09-18 WO 96132464 P~ 'OlZ83 Surfact~nts In a preferred embodiment of the present invention the surfactants include at least one anionic, zwitterionic or amphoteric surfactant. Particularly preferred surfactants include one or more of ethoxylated alkyl ether sulphate, lauryl sulphate and amido propyl betaine.
~mongst the most preferred electrolyte sensitive surfactants are alkyl ether sulphates of the general :Eormula:
R-O-(CH2-CH2O)nSO~-where R is C8l8 alkyl and n is 1 - 5. Preferably, R is lauryl-.
The alkyl ether sulphate surfactants are preferably present at a level of 2-30%wt. A particular preferred electrolyte sensitive surfactant is lauryl ammonium ether sulphate. Conveniently, this component is present in the formulations of the invention at levels of 2-20%wt, more preferably 3-7%wt on product for relatively dilute products or 8-18% for concentrates.
It is possible to use other anionic surfactant in combination with the ether sulphate surface active agents.
~nionic surfactants which may be used in combination with the ether sulphate surface active agents include alkylaryl sulphonates, alcohols sulphates, phosphate esters, sulphosuccinates, sulphosuccinamates, alkane sulphonates, R
olefin sulphonates, petroleum sulphonates, sarcosinates, taurates, isethionates, and soaps. Particular examples of ---these classes of anionic surfactants include those sold under the trade names Eltesol SX30[TM] (sodium xylene CA 0221~79~ 1997-09-18 WO ~J~132~ 3C~283 sulphonate), Empicol L2[TM] (sodium lauryl sulphate), Triton H55[TM] (potassium phosphate ester), Marlinat DF8 (sodium sulphosuccinate), Hostapur SAS 30X[TM] (sodium alkane sulphonate), Hostapur OS[TM] (sodium olefin sulphonate), Petronate S[TM] (sodium petroleum sulphonate), Hamposyl L30[TM] (sodium lauroyl sarcosinate), Fenopon T33[TM] (sodium N-methyl-N-oleyl taurate), and Fenopon AC 78[TM] (sodium coconut isethionate).
Preferred amongst these surfactants additional are alcohol sulphates, particularly C8l8 alcohol sulphates and alkyl benezene sulphonates.
Typical levels of alcohol sulphates in compositions of the present invention range from 5-15%wt on product, more preferably 6-10%wt on product.
Typical levels of alkyl benzene sulphonate in compositions of the present invention range from 10-30% on product.
It is possible to use nonionic surfactant in combination with the ether sulphates surface active agents. One particular class of nonionic surfactants for use in combination with the ether sulphate surface active agents comprises the amine oxides of the formula:
RlR2R3-NO
in which Rlis a long chain alkyl group, typically containing 8 to 20 carbon atoms; and R2 and R3 are the same or different, lower alkyl group, typically containing 1-4 carbon atoms. Particular examples of this class of nonionic surfactants are alkyl dimethyl amine oxides such CA 0221~i79~i 1997-09-18 WO 96132464 P~ r3GI'~1283 as sold under the trade name "Empigen OB" [TM] by Albright & Wilson.
Other classes of nonionic surface active agents which may be employed comprise polyalkoxylated fatty alcohols and their esters; polyalkoxylated fatty acids; polyalkoxylated alkyl phenols; alkanolamides; polyalkoxylated alkanolamides, glucosides, polyglucosides, sucrose and sugar esters, fatty esters, ethoxylated alkanolamides, ethoxylated long chain amines; alkyl amines, alkyl polyglucosides and alkyl polyglycosides. Particular examples of these classes of nonionic surfactants are those sold under the trade names Synperonic A[TM] (alcohol ethoxylates), Crodet L24[TM] (polyoxyethylene-24-lauric acid), Synperonic NP[TM] (nonyl phenyl ethoxylates), Empilan CME[TM] (coconut monoethanolamide), Triton CG110[TM] (alkyl glucoside), Glucam E10[TM] (10 mole ethoxylate of methyl glucoside), Crodesta SL 40[TM]
(sucrose cocoate), Empilan MAA[TM] (ethoxylated coconut monoethanolamide), Ethomeen C12[TM] (ethoxylated coconut amine), and Tagosoft 16B[TM] (cetyl isooctanoate).
Suitable amphoteric surfactants for use in combination with the ether sulphate surfactants include alkyl betaines, alkyl aminopropionates, alkyl iminodipropionates; alkyl glycinates; carboxyglycinates;
alkyl imidazolines sulphobetaines; alkyl polyaminocarboxylates and polyamphocarboxyglycinates.
Particular examples of such amphoteric surfactants are those sold under the trade names Tegobetain A4080[TM]
(alkyl dimethyl betaine), Ampholax XCU[TM] (coco-amphoglycolate), Amphotensid CT[TM] (alkyl imidazoline based amphoteric), Ampholax XCO 30[TM] (coco-amphocarboxyglycinate) and Sandobet SC[TM] (cocoamide-sulphobetaine); and sodium N-coco-aminopropionate, disodium N-coco-iminodiproprionate, and cocoglycinate.
-CA 0221~79~ 1997-09-18 WO 96/32464 PCTJE~P96~0~283 Preferred amongst these surfactants are betaines, preferably alkyl amido propyl betaines with an alkyl chain length of C8-Cl8. Coco amido propyl betaine is particularly preferred.
Typical levels of betaine in compositions according to the prese~t invention range from 0.5-5.0%wt, more preferably 1-3~wt on product.
Suitable cationic surfactants for use in the concentrates of the invention includes alkyl ~uaternary ammonium halides; primary, secondary and tertiary amines and their salts; and polyamines. Particular examples of such cationic surfactants are those sold under the trade names Empigen BAC[TM] (alkyl dimethyl benzalkonium chloride), Armac l[TM] (tallow amine acetate-amine salts), Synprolam 35N3[TM] (N-alkyl propane propane diamine), and Synprolam 35XlO[TM] (10 mole ethoxylated primary amine).
Alternatives to the use of anionic containing systems are known. For example, nonionic surfactants can be used in combination with the cationic surfactant. In such systems the nonionic surfactant is preferably a nonionic surfactant as described above for use in combination with the ether sulphates.
Electrolvtes Where the surfactants are sensitive to the presence of electrolyte, a broad range of electrolytes can be - employed, provided that the electrolyte causes thickening of the surfactant at a first concentration and th;nning of the surfactant, relative to the viscosity peak at a second, higher concentration.
/ CA 0221~795 1997-09-18 - _~3656 WO ,~ ~ , . -, - ; - --,) ~ Amended 7 March 1997) Preferred electrolytes o~ present inventions are NaC1, MgC12, MgSO4 and mixtures thereof. Other water-soluble electrolytes may be employed, including builders such as sodium, sodium phosphates and alkali metal silicates.
Typical electrolyte concentration is from 4.0 to 20% %w/w, preferred electrolyte concentration is from ~-15 %w/w, particularly preferred concentration is from 4-10~ %w/w.
Carriers .
Preferred carriers comprise a porous or fibrous material.
Typical examples o~ porous materials are sponges which can be natural and/or synthetic. Typical examples of fibrous materials are cloths, which can be woven and/or non-woven.
Synthetic sponges as are widely available in the marketplace are particularly preferred.
Additional Com~onents Other components which may be present include non-bleaching germicides or disinfectants and weak or strong acids which may serve as limescale removing agents e.g.
glycollic acid, citric acid, hydrochloric acid and sulphuric acid. The compositions useful in present invention can include, optionally, per~umes, solvents, colorants and mixtures thereof. It is also possible for the compositions of the invention to contain a compound which provides a particularly unpleasant taste so as to prevent inadvertent consumption of the product.
Preservatives and other antimicrobial components are optional components of the compositions according to the AMEN~ED SHEET
CA 022l~79~ l997-09-l8 ~3656 WO
/ (Amended 7 March 1997 ) invention. Typical antimicrobial agents include formaldehyde.
It is possible to include polymers in the composition of the invention. Guar gum is a suitable polymer. Typical inclusion levels of polymer range from 0.001-2%.
Hydrotropes are another optional component of the present invention. Ethanol is a suitable hydrotrope as are the xylene, cumeme and benzene sulphonates. Preferably ethanol is present at a level of up to 10%wt, preferable up to a level of 6%wt.
Preferred compositions of the dilution thickening compositions according to the present invention are:
Te~n~ca]. Fiel~
The present invention is concerned with improvements relating to light duty cleaning and in particular to improvements relating to manual dishwashing.
sackarol~n~ of the Inv~ntion It is known that the viscosity of certain surfactant solutions can be influenced by the concentration of electrolyte in the surfactant solution. WO 93/08247 (Clorox: 1991) discloses that surfactant systems containing alkyl ether sulphate systems can be thickened with the addition of an appropriate amount of electrolyte.
EP 574086 (Colgate: 1992) discloses how the salts in a composition may affect the viscosity of the composition.
Such technology is known and used in the formulation of shampoo and other personal washing compositions where the concentration of electrolyte and surfactant is often selected to give a peak viscosity for the surfactant system chosen. It is known that the addition of excess electrolyte does not result in further thickening but 'salts-out' the surfactant and results in a lowering of viscosity.
It is known to prepare compositions which contain an excess of electrolyte such that they become thicker on dilution. EP 254653 (Cotelle SA and Henkel: 1986) relates to dilution-thickening concentrates in general and covers compositions which are thickened with excess NaCl.
CA 022l~79~ l997-09-l8 ~3656 WO ~ ;.......................... ; .......... ..... ...
~Amended 7 March 1997 ) WO 95/02664 (Jeyes Group: 1993) discloses a li~uid concentrate for dilution with water tQ give a thickened product. The concentrate comprises: an alkyl ether sulphate, optional further anionic or nonionic or amphoteric, optional cationic alone or in combination with nonionic, electrolyte and/or hydrotrope. The compositions disclosed in the above-mentioned documents can be sold as concentrates and are intended for dilution before use to give a thickened composition. Such rheological properties are considered advantageous for the cleaning of hard sur~aces as they prevent the product running off the surface. With shampoo compositions, it is also advantageous for the product to thicken in the presence o~
water such that it is not washed of the skin rapidly.
WO-A-9416680 relates to dilution-thickening personal washing compositions which comprise 20-60% surfactant other than soap or primary alcohol sulphate and 1-20%
electrolyte it has a sufficiently low viscosity for packing and dispensing but will thicken in use to a sufficiently high viscosity that it does not run off skin or hair when applied. The compositions which are disclosed in detail in WO-A-9416680 comprise ether sulphate and betaine surfactants and sodium chloride as an electrolyte. WO-A-9416680 refers to JP63-270533 which teaches dilution-thickening compositions based on soaps or primary alcohol sulphates as polyhydric alcohols.
In the art of manual dishwashing it is known to prepare a very dilute solution of surfactant (typically less that 0.1%wt surfactant in water) and immerse the articles to be cleaned in this solution. This is known as 'bowl-washing' in the art. Dilution-thickening hand dishwashing compositions are known. Liquid dilution-thickening compositions are known for use in hand dishwash processes of the "bowl-washing" type. WO 93/03129 (Unilever: 1991) ~MEN~~~SHEET
~ 20~
/365~ WO
(Amended 7 March 1997) ,-. , - , , - ,, ... .. .. .. ..
- 2a -discloses a concentrated light duty li~uid which contains:
a mixture of anionic and nonionic, and 3-6 carbon alkane diol so]vent as a hydrotrope In a further method of manual dishwashing it is known to apply a concentrated surfactant composition directly into the articles to be cleaned Compositions useful for this purpose may take the form of gels or pastes and may be applied to the surface of the articles with a cloth or sponge. In a second, alternative method, it is known to prepare a washing solution and transfer this to the ~ surface of the articles, using an adsorbent carrier. For the purposes of the present invention the term adsorbent E~r,~D S~
CA 0221~795 1997-09-18 ~f65 6 WO -; ,; ;. . .. .. . ,~
~ ~mended 7 March 1997) carriers includes articles such as a cloth or sponge. The operative consideration is that the carrier can be used to carry the washing solution to the articles to be cleaned.
One difficulty with this second alternative method is that the surfactant content of the carrier rapidly becomes depleted in use and needs to be replenished. In order to solve this problem it has been known to provide carriers which comprise a support means such as steel wool and a solid surfactant composition impregnated thereupon. These gradually release surfactant over a period of time.
~ However, once the surfactant is exhausted it is generally not possible to replenish the supply.
Brie~ Descri~tion of the Invention We have now determined that the time for which the carrier can be used before the surfactant borne thereupon is exhausted can be significantly increased by use of method wherein the surfactant composition is thickened on dilution, within the carrier. This enables the carrier to be treated with surfactant which thickens within the carrier so as to replenish the store of surfactant held therein.
Accordingly, the present invention provides a light duty cleanin~ process which comprises the steps of:
a) treating an adsorbent carrier with a light duty cleaning, surfactant composition which is capable of thickening on the addition of water, b) treating the combination of the carrier and surfactant composition with water, and, AMEN~ED SHEET
b ~_ CA 0221~79~ 1997-09-18 - ~ WO . . ..... ..
~ - ~ ended 7 March 1997) ~' ~ - 4 -~' c) subseguent to steps (a) and (b) performing a cleaning operation with the carrier.
It is believed that the use of a dilution thickening composition in combination with a carrier causes the surfactant to be retained on the carrier and released over a signi~icantly longer period of time. Therefore in the method of the present invention the increased viscosity on dilution of selected compositions is beneficially combined with the delivering features of a porous substrate to extend the working lifetime of the substrate during the ~ cleaning process The present invention also provides a kit of parts comprising:
a) a light duty cleaning, surfactant composition which is capable of thickening on the addition of water, and, b) an adsorbent carrier.
The invention is described in more detail below with particular reference to manual dishwashing processes.
While tl~e preferred cleaning process according to the present invention is a manual dishwashing process other cleaning processes including personal washing are not intended to be excluded from the scope of the invention.
Detailed Descri~tion of the Invention Typically, the compositions of the present invention comprise at least one surfactant whose solution viscosity is strongly influenced by the prevailing electrolyte ~ 4 J- ~ CA 02215795 1997-09-18 ded 7 March 1997) - 4a -/
concentration. While other means by which the viscosity can be increased on dilution are known, the use of an AMENDED SHEET
CA 0221~79~ 1997-09-18 ,~3656 WO
/ (Amended 7 March 1997 ~/ ' - .
electrolyte is preferred. In preferred embodiments of the invention the thickening of the diluted concentrate is effected by the presence of selected surface active agents whose thickening effect, in the concentrate, is reduced by the presence o~ an excess of dissolved electrolyte. Thus, upon dilution of the concentrate, the concentration of dissolved electrolyte is reduced and the surface active agent component is then capable of exerting its thickening effect.
In practical embodiments of the invention, the carrier, which is preferably a sponge, is treated with the surfactant composition either by dipping at least a part of the carrier in the composition or by otherwise exposing the carrier to the surfactant composition, such as by pouring or otherwise dispensing the surfactant composition onto the carrier. The combination of the carrier and the composition is treated with water by dipping the combination into water. As a result of the dilution of the electrolyte which occurs, the electrolyte concentration falls below that which is sufficient to prevent the surfactants from thickening and the viscosity of the surfactant composition rises. As described above, this increase in viscosity causes the surfactant to be retained on the carrier and released over a significantly longer period of time.
Preferred surfactant concentrations range from 2-40~wt on product. Levels of total surfactant in the range 7.5-30%wt are particularly preferred.
Preferred electrolyte concentrations range from 1-30%wt with levels of 4-9~wt being most particularly preferred.
AMEN~EDS~E~
.
CA 0221~79~ 1997-09-18 WO 96132464 P~ 'OlZ83 Surfact~nts In a preferred embodiment of the present invention the surfactants include at least one anionic, zwitterionic or amphoteric surfactant. Particularly preferred surfactants include one or more of ethoxylated alkyl ether sulphate, lauryl sulphate and amido propyl betaine.
~mongst the most preferred electrolyte sensitive surfactants are alkyl ether sulphates of the general :Eormula:
R-O-(CH2-CH2O)nSO~-where R is C8l8 alkyl and n is 1 - 5. Preferably, R is lauryl-.
The alkyl ether sulphate surfactants are preferably present at a level of 2-30%wt. A particular preferred electrolyte sensitive surfactant is lauryl ammonium ether sulphate. Conveniently, this component is present in the formulations of the invention at levels of 2-20%wt, more preferably 3-7%wt on product for relatively dilute products or 8-18% for concentrates.
It is possible to use other anionic surfactant in combination with the ether sulphate surface active agents.
~nionic surfactants which may be used in combination with the ether sulphate surface active agents include alkylaryl sulphonates, alcohols sulphates, phosphate esters, sulphosuccinates, sulphosuccinamates, alkane sulphonates, R
olefin sulphonates, petroleum sulphonates, sarcosinates, taurates, isethionates, and soaps. Particular examples of ---these classes of anionic surfactants include those sold under the trade names Eltesol SX30[TM] (sodium xylene CA 0221~79~ 1997-09-18 WO ~J~132~ 3C~283 sulphonate), Empicol L2[TM] (sodium lauryl sulphate), Triton H55[TM] (potassium phosphate ester), Marlinat DF8 (sodium sulphosuccinate), Hostapur SAS 30X[TM] (sodium alkane sulphonate), Hostapur OS[TM] (sodium olefin sulphonate), Petronate S[TM] (sodium petroleum sulphonate), Hamposyl L30[TM] (sodium lauroyl sarcosinate), Fenopon T33[TM] (sodium N-methyl-N-oleyl taurate), and Fenopon AC 78[TM] (sodium coconut isethionate).
Preferred amongst these surfactants additional are alcohol sulphates, particularly C8l8 alcohol sulphates and alkyl benezene sulphonates.
Typical levels of alcohol sulphates in compositions of the present invention range from 5-15%wt on product, more preferably 6-10%wt on product.
Typical levels of alkyl benzene sulphonate in compositions of the present invention range from 10-30% on product.
It is possible to use nonionic surfactant in combination with the ether sulphates surface active agents. One particular class of nonionic surfactants for use in combination with the ether sulphate surface active agents comprises the amine oxides of the formula:
RlR2R3-NO
in which Rlis a long chain alkyl group, typically containing 8 to 20 carbon atoms; and R2 and R3 are the same or different, lower alkyl group, typically containing 1-4 carbon atoms. Particular examples of this class of nonionic surfactants are alkyl dimethyl amine oxides such CA 0221~i79~i 1997-09-18 WO 96132464 P~ r3GI'~1283 as sold under the trade name "Empigen OB" [TM] by Albright & Wilson.
Other classes of nonionic surface active agents which may be employed comprise polyalkoxylated fatty alcohols and their esters; polyalkoxylated fatty acids; polyalkoxylated alkyl phenols; alkanolamides; polyalkoxylated alkanolamides, glucosides, polyglucosides, sucrose and sugar esters, fatty esters, ethoxylated alkanolamides, ethoxylated long chain amines; alkyl amines, alkyl polyglucosides and alkyl polyglycosides. Particular examples of these classes of nonionic surfactants are those sold under the trade names Synperonic A[TM] (alcohol ethoxylates), Crodet L24[TM] (polyoxyethylene-24-lauric acid), Synperonic NP[TM] (nonyl phenyl ethoxylates), Empilan CME[TM] (coconut monoethanolamide), Triton CG110[TM] (alkyl glucoside), Glucam E10[TM] (10 mole ethoxylate of methyl glucoside), Crodesta SL 40[TM]
(sucrose cocoate), Empilan MAA[TM] (ethoxylated coconut monoethanolamide), Ethomeen C12[TM] (ethoxylated coconut amine), and Tagosoft 16B[TM] (cetyl isooctanoate).
Suitable amphoteric surfactants for use in combination with the ether sulphate surfactants include alkyl betaines, alkyl aminopropionates, alkyl iminodipropionates; alkyl glycinates; carboxyglycinates;
alkyl imidazolines sulphobetaines; alkyl polyaminocarboxylates and polyamphocarboxyglycinates.
Particular examples of such amphoteric surfactants are those sold under the trade names Tegobetain A4080[TM]
(alkyl dimethyl betaine), Ampholax XCU[TM] (coco-amphoglycolate), Amphotensid CT[TM] (alkyl imidazoline based amphoteric), Ampholax XCO 30[TM] (coco-amphocarboxyglycinate) and Sandobet SC[TM] (cocoamide-sulphobetaine); and sodium N-coco-aminopropionate, disodium N-coco-iminodiproprionate, and cocoglycinate.
-CA 0221~79~ 1997-09-18 WO 96/32464 PCTJE~P96~0~283 Preferred amongst these surfactants are betaines, preferably alkyl amido propyl betaines with an alkyl chain length of C8-Cl8. Coco amido propyl betaine is particularly preferred.
Typical levels of betaine in compositions according to the prese~t invention range from 0.5-5.0%wt, more preferably 1-3~wt on product.
Suitable cationic surfactants for use in the concentrates of the invention includes alkyl ~uaternary ammonium halides; primary, secondary and tertiary amines and their salts; and polyamines. Particular examples of such cationic surfactants are those sold under the trade names Empigen BAC[TM] (alkyl dimethyl benzalkonium chloride), Armac l[TM] (tallow amine acetate-amine salts), Synprolam 35N3[TM] (N-alkyl propane propane diamine), and Synprolam 35XlO[TM] (10 mole ethoxylated primary amine).
Alternatives to the use of anionic containing systems are known. For example, nonionic surfactants can be used in combination with the cationic surfactant. In such systems the nonionic surfactant is preferably a nonionic surfactant as described above for use in combination with the ether sulphates.
Electrolvtes Where the surfactants are sensitive to the presence of electrolyte, a broad range of electrolytes can be - employed, provided that the electrolyte causes thickening of the surfactant at a first concentration and th;nning of the surfactant, relative to the viscosity peak at a second, higher concentration.
/ CA 0221~795 1997-09-18 - _~3656 WO ,~ ~ , . -, - ; - --,) ~ Amended 7 March 1997) Preferred electrolytes o~ present inventions are NaC1, MgC12, MgSO4 and mixtures thereof. Other water-soluble electrolytes may be employed, including builders such as sodium, sodium phosphates and alkali metal silicates.
Typical electrolyte concentration is from 4.0 to 20% %w/w, preferred electrolyte concentration is from ~-15 %w/w, particularly preferred concentration is from 4-10~ %w/w.
Carriers .
Preferred carriers comprise a porous or fibrous material.
Typical examples o~ porous materials are sponges which can be natural and/or synthetic. Typical examples of fibrous materials are cloths, which can be woven and/or non-woven.
Synthetic sponges as are widely available in the marketplace are particularly preferred.
Additional Com~onents Other components which may be present include non-bleaching germicides or disinfectants and weak or strong acids which may serve as limescale removing agents e.g.
glycollic acid, citric acid, hydrochloric acid and sulphuric acid. The compositions useful in present invention can include, optionally, per~umes, solvents, colorants and mixtures thereof. It is also possible for the compositions of the invention to contain a compound which provides a particularly unpleasant taste so as to prevent inadvertent consumption of the product.
Preservatives and other antimicrobial components are optional components of the compositions according to the AMEN~ED SHEET
CA 022l~79~ l997-09-l8 ~3656 WO
/ (Amended 7 March 1997 ) invention. Typical antimicrobial agents include formaldehyde.
It is possible to include polymers in the composition of the invention. Guar gum is a suitable polymer. Typical inclusion levels of polymer range from 0.001-2%.
Hydrotropes are another optional component of the present invention. Ethanol is a suitable hydrotrope as are the xylene, cumeme and benzene sulphonates. Preferably ethanol is present at a level of up to 10%wt, preferable up to a level of 6%wt.
Preferred compositions of the dilution thickening compositions according to the present invention are:
2.0-10%wt C8-C18 alkyl ether sulphate, 5.0-15%wt C8-C18 alkyl sulphate, 0.5-5.0%wt C8-C18 alkyl amidopropyl betaine, 7.5-30.0%wt electrolyte, and, up to 6%wt ethanol to 100% water and minors Other preferred compositions comprise:
2-15%wt C8-C18 alkyl ether sulphate, 3-16%wt alkyl benzene sulphonate (as the TEA
salt) 7-14%wt alkyl benzene sulphonate (as the Na salt), 0.5-10%wt electrolyte, and, 0.5-10%wt hydrotrope.
to 100% water and minors , A~nFn CA 0221~79~ 1997-09-18 One particularly preferred composition according to the present invention comprises:
8-18%wt C8-C18 alkyl ether sulphate 0.5-5%wt amidopropyl betaine 0.5-10%wt electrolyte, and, to 100% water and minors In the last above-mentioned composition it is particularly preferred that the minors comprise:
0.01-1%wt guar gum 0.001-0.1%wt formaldehyde 0.001-0.1%wt butylated hydroxytoluene 0.1-5%wt perfume F~;lmT~leB
The following examples will further illustrate a preferred embodiment of present invention. However, it is understood that following examples are given by way of illustration and not limitation.
Typical examples of porous and/or fibrous material useful in the present invention are synthetic sponges, available in the marketplace from the Minesota Mining and Manufacturing (3M) company.
~x~MPhE I
A series of illustrative and comparative examples using the method of present invention were prepared and the results are shown in Table 2 below. The formulations used are given in Table 1 below. Dilution viscosity profiles CA 0221~79~ 1997-09-18 of the composition according to the present invention are given in Table 3.
T~hle 1 I II
LES-Na(*) 5.0 5.0 LS-NH4(**) 7.0 7.0 CAPB(***) 1.5 1.5 NaCl 1.0 0.5 Ethanol 1.0 0.5 * - lauryl ether sulphate as sodium salt ** - lauryl sulphate as ammonium salt *** - amido propyl betaine based on coco fatty acid Compositions were prepared by simple mixing of the components listed in Table 1 to form compositions I and II. Composition I is a composition for use in the method of the present invention and composition II is a control.
Both compositions had an initial viscosity of 600cp as measured using a Haake viscometer at 75.04 reciprocal seconds shear rate.
The product retention was measured by applying first 3 g of the composition I or II plus, subsequently, 15 g of water to a sponge. After application the sponge was manually compressed to as to generate foam and expel a washing liquor which was allowed to fall into a beaker.
The sponge was then treated with a further 15 g of water CA 022l~79~ l997-09-l8 W096/3~64 P~ 01283 and the process repeated, each time gathering the li~uor in a fresh beaker, until no further foam was generated as the li~uor was expelled. The contents of the beakers was subjected to chemical analysis to determine the surfactant concentration. The concentrations are given in table 2 below.
' Table 2 SURFACTANT ~T~T~A.~ED
(concentration in ppm) SOLUTION I II
From the results in Table 2 it can be seen that the 30 composition I showed a clear retention of the product on the sponge and an extended release of the surfactant from the sponge: i.e. with composition I, which embodies the invention, a more extended washing procedure could be conducted without excessive wastage of the surfactant 35 containing product.
CA 022l5795 l997-09-l8 W096/32464 r~ 1283 Table 3 below gives viscosity/dilution data for the compositions I and II. It can be seen that composition I
exhibits an increase in viscosity as it is diluted.
Whereas composition II shows a continuous fall in viscosity with dilution.
T~hle 3 Active concentration Vi8c08ity (Cp) ) I II
620 13.5 12.5 1 045 11.5 1 685 11.0 410 10.5 1 549 10.0 366 9.5 275 9.0 275 8.5 1 123 8.0 149 7.5 794 7.0 54 6.5 484 6.0 20 ~ 30 5.5 193 5.0 14 4.5 19
2-15%wt C8-C18 alkyl ether sulphate, 3-16%wt alkyl benzene sulphonate (as the TEA
salt) 7-14%wt alkyl benzene sulphonate (as the Na salt), 0.5-10%wt electrolyte, and, 0.5-10%wt hydrotrope.
to 100% water and minors , A~nFn CA 0221~79~ 1997-09-18 One particularly preferred composition according to the present invention comprises:
8-18%wt C8-C18 alkyl ether sulphate 0.5-5%wt amidopropyl betaine 0.5-10%wt electrolyte, and, to 100% water and minors In the last above-mentioned composition it is particularly preferred that the minors comprise:
0.01-1%wt guar gum 0.001-0.1%wt formaldehyde 0.001-0.1%wt butylated hydroxytoluene 0.1-5%wt perfume F~;lmT~leB
The following examples will further illustrate a preferred embodiment of present invention. However, it is understood that following examples are given by way of illustration and not limitation.
Typical examples of porous and/or fibrous material useful in the present invention are synthetic sponges, available in the marketplace from the Minesota Mining and Manufacturing (3M) company.
~x~MPhE I
A series of illustrative and comparative examples using the method of present invention were prepared and the results are shown in Table 2 below. The formulations used are given in Table 1 below. Dilution viscosity profiles CA 0221~79~ 1997-09-18 of the composition according to the present invention are given in Table 3.
T~hle 1 I II
LES-Na(*) 5.0 5.0 LS-NH4(**) 7.0 7.0 CAPB(***) 1.5 1.5 NaCl 1.0 0.5 Ethanol 1.0 0.5 * - lauryl ether sulphate as sodium salt ** - lauryl sulphate as ammonium salt *** - amido propyl betaine based on coco fatty acid Compositions were prepared by simple mixing of the components listed in Table 1 to form compositions I and II. Composition I is a composition for use in the method of the present invention and composition II is a control.
Both compositions had an initial viscosity of 600cp as measured using a Haake viscometer at 75.04 reciprocal seconds shear rate.
The product retention was measured by applying first 3 g of the composition I or II plus, subsequently, 15 g of water to a sponge. After application the sponge was manually compressed to as to generate foam and expel a washing liquor which was allowed to fall into a beaker.
The sponge was then treated with a further 15 g of water CA 022l~79~ l997-09-l8 W096/3~64 P~ 01283 and the process repeated, each time gathering the li~uor in a fresh beaker, until no further foam was generated as the li~uor was expelled. The contents of the beakers was subjected to chemical analysis to determine the surfactant concentration. The concentrations are given in table 2 below.
' Table 2 SURFACTANT ~T~T~A.~ED
(concentration in ppm) SOLUTION I II
From the results in Table 2 it can be seen that the 30 composition I showed a clear retention of the product on the sponge and an extended release of the surfactant from the sponge: i.e. with composition I, which embodies the invention, a more extended washing procedure could be conducted without excessive wastage of the surfactant 35 containing product.
CA 022l5795 l997-09-l8 W096/32464 r~ 1283 Table 3 below gives viscosity/dilution data for the compositions I and II. It can be seen that composition I
exhibits an increase in viscosity as it is diluted.
Whereas composition II shows a continuous fall in viscosity with dilution.
T~hle 3 Active concentration Vi8c08ity (Cp) ) I II
620 13.5 12.5 1 045 11.5 1 685 11.0 410 10.5 1 549 10.0 366 9.5 275 9.0 275 8.5 1 123 8.0 149 7.5 794 7.0 54 6.5 484 6.0 20 ~ 30 5.5 193 5.0 14 4.5 19
Claims (10)
1. A light duty cleaning process which comprises the steps of:
a) treating an adsorbent carrier with a light duty cleaning surfactant composition which is capable of thickening on the addition of water, b) treating the combination of the carrier and surfactant composition with water, and, c) subsequent to step (b) performing a cleaning operation with the carrier.
a) treating an adsorbent carrier with a light duty cleaning surfactant composition which is capable of thickening on the addition of water, b) treating the combination of the carrier and surfactant composition with water, and, c) subsequent to step (b) performing a cleaning operation with the carrier.
2. Process according to claim 1 wherein the surfactant composition comprises at least one surfactant whose solution viscosity is strongly influenced by the prevailing electrolyte concentration.
3. Process according to claim 2 wherein said at least one surfactant is present in the surfactant composition at a level of 2-40%wt.
4. Process according to claim 2 wherein the surfactant composition comprises electrolyte at a level of 4-20%wt.
5. Process according to claim 2 wherein said surfactant composition comprises one or more alkyl ether sulphates of the general formula:
R-O-(CH2-CH2O)nSO3-where R is C8-18 alkyl and n is 1 - 5.
R-O-(CH2-CH2O)nSO3-where R is C8-18 alkyl and n is 1 - 5.
6. Process according to claim 2 wherein said surfactant composition comprises an alkyl amido propyl betaines with an alkyl chain length of C8-C18.
7. Process according to claim 2 wherein said surfactant composition comprises an electrolyte selected from the group comprising NaCl, MgCl2, MgSO4 and mixtures thereof.
8. Process according to claim 1 wherein the surfactant composition comprises:
a) 2.0-10%wt C8-C18 alkyl ether sulphate, b) 5.0-15%wt C8-C18 alkyl sulphate, c) 0.5-5.0%wt C8-C18 alkyl amidopropyl betaine, d) 7.5-30.0%wt electrolyte, and, e) optionally, up to 6%wt ethanol.
a) 2.0-10%wt C8-C18 alkyl ether sulphate, b) 5.0-15%wt C8-C18 alkyl sulphate, c) 0.5-5.0%wt C8-C18 alkyl amidopropyl betaine, d) 7.5-30.0%wt electrolyte, and, e) optionally, up to 6%wt ethanol.
9. A manual dishwashing process which comprises the steps of, treating an adsorbent carrier with a surfactant composition which is capable of thickening on the addition of water and which comprises:
a) 2.0-10%wt C8-C18 alkyl ether sulphate, b) 5.0-15%wt C8-C18 alkyl sulphate, c) 0.5-5.0%wt C8-C18 alkyl amidopropyl betaine, d) 7.5-30.0%wt electrolyte, and, e) optionally, up to 6%wt ethanol, subsequently treating the combination of the carrier and surfactant composition with water, and, thereafter performing a manual dishwashing operation with the carrier.
a) 2.0-10%wt C8-C18 alkyl ether sulphate, b) 5.0-15%wt C8-C18 alkyl sulphate, c) 0.5-5.0%wt C8-C18 alkyl amidopropyl betaine, d) 7.5-30.0%wt electrolyte, and, e) optionally, up to 6%wt ethanol, subsequently treating the combination of the carrier and surfactant composition with water, and, thereafter performing a manual dishwashing operation with the carrier.
10. A kit of parts comprising:
a) a light duty cleaning, surfactant composition which is capable of thickening on the addition of water, and, b) an adsorbent carrier.
a) a light duty cleaning, surfactant composition which is capable of thickening on the addition of water, and, b) an adsorbent carrier.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9501520A BR9501520A (en) | 1995-04-10 | 1995-04-10 | Detergent composition |
BR9502064A BR9502064A (en) | 1995-05-17 | 1995-05-17 | Detergent composition |
BR9503351A BR9503351A (en) | 1995-07-17 | 1995-07-17 | Manual dishwashing process |
BR9502064-0 | 1995-07-17 | ||
BR9503351-3 | 1995-07-17 | ||
BR9501520-5 | 1995-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2215795A1 true CA2215795A1 (en) | 1996-10-17 |
Family
ID=27160129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002215795A Abandoned CA2215795A1 (en) | 1995-04-10 | 1996-03-22 | Improvements relating to light duty cleaning |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0820503B1 (en) |
JP (1) | JPH11503477A (en) |
KR (1) | KR19980703746A (en) |
CN (1) | CN1186512A (en) |
AR (1) | AR001563A1 (en) |
AU (1) | AU695764B2 (en) |
BR (1) | BR9604824A (en) |
CA (1) | CA2215795A1 (en) |
DE (1) | DE69604282T2 (en) |
ES (1) | ES2136396T3 (en) |
NZ (1) | NZ304863A (en) |
PL (1) | PL322767A1 (en) |
TR (1) | TR199701154T1 (en) |
WO (1) | WO1996032464A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9626622D0 (en) * | 1996-12-20 | 1997-02-05 | Unilever Plc | Improvements relating to surface cleaning |
US5854145A (en) * | 1997-05-14 | 1998-12-29 | Cortec Corporation | Corrosion inhibitor solution applicator |
WO1999013044A1 (en) * | 1997-09-10 | 1999-03-18 | Albemarle Corporation | Dish-cleaning block |
JP3255637B1 (en) * | 2001-01-23 | 2002-02-12 | 花王株式会社 | Liquid detergent composition |
JP5008664B2 (en) | 2005-07-11 | 2012-08-22 | トムソン ライセンシング | Macroblock adaptive inter-layer texture prediction method and apparatus |
BRPI0503023A (en) * | 2005-07-22 | 2007-03-06 | Unilever Nv | cleaning composition, method for cleaning household surfaces, process for improving retention of cleaning agents in absorbent vehicles, absorbent vehicle with improved retention of cleaning agents, and process for producing a cleaning composition |
PL2094827T3 (en) † | 2006-12-20 | 2011-04-29 | Unilever Nv | Dishwashing composition |
EP1939274A1 (en) | 2006-12-20 | 2008-07-02 | Unilever N.V. | Dishwashing composition |
BRPI0906013A2 (en) * | 2008-02-22 | 2015-06-30 | Unilever Nv | "Liquid cleaning composition, kit and use of monoalcanolamide surfactant" |
KR101442998B1 (en) * | 2010-08-11 | 2014-09-23 | 콜게이트-파아므올리브캄파니 | Foaming cleanser |
JP7038587B2 (en) * | 2018-04-02 | 2022-03-18 | ライオン株式会社 | Detergent composition for dishwashing |
CN116410727A (en) * | 2023-04-13 | 2023-07-11 | 武汉大学 | Dilution thickening type surfactant spherical micelle super-concentrated dispersion system, and preparation method and application thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3949137A (en) * | 1974-09-20 | 1976-04-06 | Akrongold Harold S | Gel-impregnated sponge |
JPS63270533A (en) * | 1987-04-30 | 1988-11-08 | Shiseido Co Ltd | Surfactant composition |
GB8809161D0 (en) * | 1988-04-19 | 1988-05-25 | Top Line Developments Ltd | Cleaning aid |
GB8817728D0 (en) * | 1988-07-26 | 1988-09-01 | Unilever Plc | Wiping article |
WO1993003129A1 (en) * | 1991-08-02 | 1993-02-18 | Unilever Plc | Concentrated hand dishwashing liquid composition having an alkane diol base |
BR9307795A (en) * | 1992-12-28 | 1995-11-21 | Procter & Gamble | Clear detergent gels |
GB9301270D0 (en) * | 1993-01-22 | 1993-03-17 | Unilever Plc | Dilution-thickening,personal washing composition |
JPH08510772A (en) * | 1993-06-01 | 1996-11-12 | エコラブ インコーポレイテッド | Concentrated hard surface cleaner |
GB9314410D0 (en) * | 1993-07-13 | 1993-08-25 | Jeyes Group Plc | Cleansing compositions |
-
1996
- 1996-03-22 WO PCT/EP1996/001283 patent/WO1996032464A1/en not_active Application Discontinuation
- 1996-03-22 KR KR1019970707146A patent/KR19980703746A/en not_active Application Discontinuation
- 1996-03-22 DE DE69604282T patent/DE69604282T2/en not_active Expired - Fee Related
- 1996-03-22 CA CA002215795A patent/CA2215795A1/en not_active Abandoned
- 1996-03-22 NZ NZ304863A patent/NZ304863A/en unknown
- 1996-03-22 EP EP96909119A patent/EP0820503B1/en not_active Revoked
- 1996-03-22 CN CN96194365A patent/CN1186512A/en active Pending
- 1996-03-22 BR BR9604824A patent/BR9604824A/en not_active Application Discontinuation
- 1996-03-22 JP JP8530671A patent/JPH11503477A/en active Pending
- 1996-03-22 TR TR97/01154T patent/TR199701154T1/en unknown
- 1996-03-22 ES ES96909119T patent/ES2136396T3/en not_active Expired - Lifetime
- 1996-03-22 AU AU52737/96A patent/AU695764B2/en not_active Ceased
- 1996-03-22 PL PL96322767A patent/PL322767A1/en unknown
- 1996-04-08 AR AR33608196A patent/AR001563A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE69604282D1 (en) | 1999-10-21 |
TR199701154T1 (en) | 1998-02-21 |
AU695764B2 (en) | 1998-08-20 |
DE69604282T2 (en) | 1999-12-30 |
AR001563A1 (en) | 1997-11-26 |
EP0820503A1 (en) | 1998-01-28 |
CN1186512A (en) | 1998-07-01 |
WO1996032464A1 (en) | 1996-10-17 |
KR19980703746A (en) | 1998-12-05 |
ES2136396T3 (en) | 1999-11-16 |
NZ304863A (en) | 1999-01-28 |
PL322767A1 (en) | 1998-02-16 |
AU5273796A (en) | 1996-10-30 |
JPH11503477A (en) | 1999-03-26 |
BR9604824A (en) | 1999-01-05 |
EP0820503B1 (en) | 1999-09-15 |
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