EP3143111A2 - An aqueous alkaline hand dishwash liquid detergent formulation - Google Patents
An aqueous alkaline hand dishwash liquid detergent formulationInfo
- Publication number
- EP3143111A2 EP3143111A2 EP15717911.0A EP15717911A EP3143111A2 EP 3143111 A2 EP3143111 A2 EP 3143111A2 EP 15717911 A EP15717911 A EP 15717911A EP 3143111 A2 EP3143111 A2 EP 3143111A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- formulation
- liquid detergent
- aqueous alkaline
- benzene sulfonate
- range
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 151
- 238000009472 formulation Methods 0.000 title claims abstract description 122
- 239000003599 detergent Substances 0.000 title claims abstract description 54
- 239000007788 liquid Substances 0.000 title claims abstract description 39
- -1 alkyl ether sulfate Chemical class 0.000 claims abstract description 37
- 229940077388 benzenesulfonate Drugs 0.000 claims abstract description 33
- 239000004094 surface-active agent Substances 0.000 claims abstract description 31
- 150000004996 alkyl benzenes Chemical class 0.000 claims abstract description 29
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 28
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 26
- 230000003139 buffering effect Effects 0.000 claims abstract description 25
- 230000008719 thickening Effects 0.000 claims abstract description 24
- 238000010979 pH adjustment Methods 0.000 claims abstract description 22
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 19
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 15
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 13
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 13
- 235000017550 sodium carbonate Nutrition 0.000 claims abstract description 13
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 6
- 239000011736 potassium bicarbonate Substances 0.000 claims abstract description 5
- 235000015497 potassium bicarbonate Nutrition 0.000 claims abstract description 5
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims abstract description 5
- 229910000027 potassium carbonate Inorganic materials 0.000 claims abstract description 5
- 235000011181 potassium carbonates Nutrition 0.000 claims abstract description 5
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims abstract description 5
- 229940086066 potassium hydrogencarbonate Drugs 0.000 claims abstract description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 17
- 125000004432 carbon atom Chemical group C* 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 12
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group 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 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 claims description 5
- 150000005215 alkyl ethers Chemical class 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 description 23
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 11
- 239000003945 anionic surfactant Substances 0.000 description 9
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 8
- 239000002304 perfume Substances 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- 125000000129 anionic group Chemical group 0.000 description 6
- 229960003237 betaine Drugs 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 239000003755 preservative agent Substances 0.000 description 6
- 230000002335 preservative effect Effects 0.000 description 5
- 239000000872 buffer Substances 0.000 description 4
- 239000003093 cationic surfactant Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 238000004851 dishwashing Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000002888 zwitterionic surfactant Substances 0.000 description 4
- DDPJJWIKEDDECP-UHFFFAOYSA-N 4-methyl-1,2-thiazolidin-3-one Chemical compound CC1CSNC1=O DDPJJWIKEDDECP-UHFFFAOYSA-N 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- 239000002280 amphoteric surfactant Substances 0.000 description 3
- WSDISUOETYTPRL-UHFFFAOYSA-N dmdm hydantoin Chemical compound CC1(C)N(CO)C(=O)N(CO)C1=O WSDISUOETYTPRL-UHFFFAOYSA-N 0.000 description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000012669 liquid formulation Substances 0.000 description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Natural products CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229940096386 coconut alcohol Drugs 0.000 description 2
- 235000019864 coconut oil Nutrition 0.000 description 2
- 239000003240 coconut oil Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000001033 ether group Chemical group 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000003752 hydrotrope Substances 0.000 description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- SUMDYPCJJOFFON-UHFFFAOYSA-N isethionic acid Chemical compound OCCS(O)(=O)=O SUMDYPCJJOFFON-UHFFFAOYSA-N 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229960003975 potassium Drugs 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- 125000006733 (C6-C15) alkyl group Chemical group 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- SIDULKZCBGMXJL-UHFFFAOYSA-N 1-dimethylphosphoryldodecane Chemical compound CCCCCCCCCCCCP(C)(C)=O SIDULKZCBGMXJL-UHFFFAOYSA-N 0.000 description 1
- KRUABTDBQQLWLS-UHFFFAOYSA-N 1-methylsulfinyltetradecane Chemical compound CCCCCCCCCCCCCCS(C)=O KRUABTDBQQLWLS-UHFFFAOYSA-N 0.000 description 1
- 229940100555 2-methyl-4-isothiazolin-3-one Drugs 0.000 description 1
- CRBTVNNAESVHSD-UHFFFAOYSA-N 4-(chloromethyl)-1,2-thiazolidin-3-one Chemical compound ClCC1CSNC1=O CRBTVNNAESVHSD-UHFFFAOYSA-N 0.000 description 1
- QJRVOJKLQNSNDB-UHFFFAOYSA-N 4-dodecan-3-ylbenzenesulfonic acid Chemical compound CCCCCCCCCC(CC)C1=CC=C(S(O)(=O)=O)C=C1 QJRVOJKLQNSNDB-UHFFFAOYSA-N 0.000 description 1
- 239000004382 Amylase Substances 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- 102100032487 Beta-mannosidase Human genes 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 108010059892 Cellulase Proteins 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 108010055059 beta-Mannosidase Proteins 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229940106157 cellulase Drugs 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- PZPMGGMRWAFDAM-UHFFFAOYSA-N dioxetane;sulfuric acid Chemical class C1COO1.OS(O)(=O)=O PZPMGGMRWAFDAM-UHFFFAOYSA-N 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical class CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-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
- 239000000975 dye Substances 0.000 description 1
- 229960001484 edetic acid Drugs 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229940012017 ethylenediamine Drugs 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000013020 final formulation Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 229940083124 ganglion-blocking antiadrenergic secondary and tertiary amines Drugs 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229930195712 glutamate Natural products 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003966 growth inhibitor Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 229940045996 isethionic acid Drugs 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- FJQXCDYVZAHXNS-UHFFFAOYSA-N methadone hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(CC(C)N(C)C)(C(=O)CC)C1=CC=CC=C1 FJQXCDYVZAHXNS-UHFFFAOYSA-N 0.000 description 1
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical group [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 108010087558 pectate lyase Proteins 0.000 description 1
- 235000020030 perry Nutrition 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- IWMMSZLFZZPTJY-UHFFFAOYSA-M sodium;3-(dodecylamino)propane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCNCCCS([O-])(=O)=O IWMMSZLFZZPTJY-UHFFFAOYSA-M 0.000 description 1
- HWCHICTXVOMIIF-UHFFFAOYSA-M sodium;3-(dodecylamino)propanoate Chemical compound [Na+].CCCCCCCCCCCCNCCC([O-])=O HWCHICTXVOMIIF-UHFFFAOYSA-M 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000013579 wash concentrate Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000000080 wetting agent 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/37—Mixtures of compounds all of which are anionic
-
- 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
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
-
- 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
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
Definitions
- This present invention relates to an improved aqueous alkaline hand dishwash liquid detergent formulation
- a surfactant system which includes a linear alkyl benzene sulfonate and an alkyl ether sulfate, and a buffering and thickening system, which provides enhanced cleaning power, particularly against resistant dried-on and burnt-on soil.
- the aqueous alkaline hand dishwash liquid detergent formulation is also isotropic and is an un-built hand dishwash liquid detergent formulation.
- Hand dish-wash liquid detergent formulations suitable for washing dishes are well known. However, it is essential that the formulations are able to deliver excellent grease and soil removal at a competitive price. Unfortunately, changing the components and parameters of hand-dish wash formulations often changes the viscosity of the formulations leading to the requirement of more expensive components to balance the effect. Therefore balancing the components of hand dish wash liquid detergent formulations against cleaning performance poses difficulties for hand dish-wash formulators.
- foaming light-duty detergent compositions may be prepared by formulating an anionic alkyl aryl sulfonate and a non-ionic, surface active polyoxyethylene ether of a multi-branched primary aliphatic alcohol or by formulating an anionic sulfate ester of a polyoxyethylene derivative and an anionic alkyl aryl sulfonate, to create a composition at neutral pH.
- US 3332877 discloses a neutral synergistic ternary detergent composition for light duty dishwashing liquids containing at least 30 weight % surfactant derived from two anionic surfactants and a zwitterionic surfactant but does not include the use of a linear alkyl benzene sulfonate.
- WO 93/14183 discloses stable colourless detergent compositions and is particularly interested in soaps, and shampoos comprising from 9 to 95% anionic or non-ionic surfactant. Whilst this document does also mentions hand dish wash formulations, these formulations are also pH neutral and do not comprise a linear alkyl benzene sulfonate.
- US 6225272 discloses a pourable, storage-stable manual dishwashing detergent which contains various surfactants, an electrolyte, optionally a solvent, and at least 45% percent sodium bicarbonate with a mean particle diameter of at least 150 micrometers and provides good pouring properties and cleaning performance.
- the formulation does not include a linear alkyl benzene sulfonate.
- WO 2010/105816 discloses the use of carbamide or a derivative thereof in various detergent compositions such as for example dishwasher detergents, laundry detergents and cleansers.
- the compositions may contain up to 40% by weight of surfactants and electrolytes.
- a hand dish wash formulation is included which comprises a pH of 5.4.
- WO 2013/064356 and WO 2013/064357 disclose structured detergents or cleaning agent compositions with a flow limit and good dispersing properties.
- the detergent
- compositions comprise a mixture of anionic and non-ionic surfactants as well as inorganic salts and co-surfactants at a pH slightly above neutral.
- CN 102492574 discloses a tableware detergent comprising by weight percent: N-fatty acyl glutamate (0.1 to 10), sulfonate anionic surfactant (1 to 25), non-ionic surfactant (1 to 25) and optionally, amphoterics, polyol wetting agents, electrolytes, pH regulators, antimicrobial agents, essence and water to produce a detergent with a neutral pH.
- the object of the present invention is therefore to deliver control of cleaning performance, rheology, and appearance in a hand dish wash concentrate composition at an acceptable cost.
- buffering and thickening system is meant a material which is able to maintain the pH of a formulation and generate the required viscosity.
- a particular example is sodium carbonate.
- a builder is able to sequester calcium and magnesium ions.
- a buffer may not necessarily be a builder. This depends on whether or not the functional group is able to sequester calcium and/or magnesium ions.
- carboxylic acid or phosphonate based buffers are also builders whereas amine based buffers are not builders.
- an aqueous alkaline hand dishwash liquid detergent formulation comprising: i) 9 to 20 wt% of a surfactant system;
- 2 to 5 wt% of the surfactant system comprises a linear alkyl benzene sulfonate; and 7 to 17 wt% of the surfactant system comprise an alkyl ether sulfate; and wherein less than 1 wt% of the surfactant system comprises non- ionic surfactant; and wherein the weight ratio of linear alkyl benzene sulfonate to alkyl ether sulfate is lower than or equal to 1 : 2.2; and
- the formulation further comprises a pH adjustment, buffering and thickening system which comprises at least 5 wt% of the total formulation, wherein the system comprises one or more components selected from the group consisting of sodium carbonate, sodium hydrogen carbonate, potassium carbonate and potassium hydrogen carbonate; and
- the linear alkyl benzene sulfonate has between 6 to 20 carbon atoms in its alkyl group. It is also preferred that the linear alkyl benzene sulfonate is sodium linear alkyl benzene sulfonate.
- the alkyl ether sulfate has between 8 and 22 carbon atoms in its alkyl group. More preferably the alkyl ether sulfate is sodium alkyl ether sulfate. Even more preferably the sodium alkyl ether sulfate is sodium alkyl ether sulfate (SLES) 1 EO.
- the pH of the formulation is preferably in the range 9.2 to 10.8. More preferably the pH of the formulation is in the range 9.2 to 10.5. Even more preferably, the pH of the formulation is in the range 9.2 to 9.8.
- the pH adjustment, buffering and thickening system comprises one or more of the components selected from the group consisting of: sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate. Most preferably, the pH adjustment, buffering and thickening system comprises a mixture of sodium carbonate and sodium hydrogen carbonate.
- the pH adjustment, buffering and thickening system comprises a maximum of 10 wt% of the total formulation. More preferably, however, the buffering and thickening system comprises between 5 and 7 wt% of the total formulation.
- the formulation preferably comprises at least 65 wt% water. More preferably, the formulation comprises at least 68 wt% water.
- the formulation preferably comprises a ratio of linear alkyl benzene sulfonate to alkyl ether sulfate in the range of 1 : 2.2 to 1 : 5.5 by weight.
- the formulation comprises a ratio of linear alkyl benzene sulfonate to alkyl ether sulfate in the range of 1 : 2.2 to 1 : 5.0 by weight. Even more preferably the formulation comprises a ratio of linear alkyl benzene sulfonate to alkyl ether sulfate in the range of 1 : 22 to 1 : 1.40 by weight. Most preferably, however, the formulation comprises a ratio of linear alkyl benzene sulfonate to alkyl ether sulfate in the range of 1 : 2.2 to 1 : 3.5 by weight or even 1 : 2.2 to 1 : 3.0 by weight.
- the term 'dish' means a hard surface, as is intended to be cleaned using a hand dish-wash formulation and includes: dishes, glasses, pots, pans, baking dishes and flatware made from any material or a combination of hard surface materials commonly used in the making of articles used for eating and/or cooking.
- the surfactant system is comprised of a mixture of a linear alkyl benzene sulfonate and alkyl ether sulfate with less than 1 wt% of the surfactant system comprising non-ionic surfactant.
- the linear alkyl benzene sulfonate is preferably present in the hand dish wash formulation is an amount of 2 to 5.0 wt%. More preferably the linear alkyl benzene sulfonate is preferably present in the hand dish wash formulation in an amount of from 3 to 5 wt%. More preferably, the linear alkyl benzene sulfonate is preferably present in the hand dish wash formulation is an amount of from 3.25 to 4.95 wt%.
- the linear alkyl benzene sulfonate present in the hand dish wash formulation is in the form of a sodium salt.
- other counter-ions to the linear alkyi benzene sulfonate may be present, such as for example, potassium.
- the preferred length of the alkyi group is C8 to C18.
- the alkyi ether sulfate is preferably present in the hand dish wash formulation in an amount of from 6 to 17 wt%. More preferably, the alkyi ether sulfate is present in the hand dish wash formulation in an amount of from 9 to 15 wt%.
- the alkyi ether sulfate present in the hand dish wash formulation is in the form of a sodium salt.
- other counter-ions to the alkyi ether sulfate may be present, such as for example, potassium.
- the preferred length of the alkyi ether group is C8 to C18 alkyi with 1 to 3 ethoxylate (EO) groups. Most preferably the length of the alkyi ether group is C8 to C18 alkyi with 1 or 2 ethoxylate groups (EO).
- additional surfactant may be present in the formulation.
- Additional surfactants may be chosen from, for example, other anionic and/or nonionic detergent actives.
- the cleaning formulation may further, or alternatively, comprise cationic, amphoteric and zwitterionic surfactants.
- the surfactant system comprises less than 1 wt% non-ionic surfactant.
- the surfactant system preferably comprises less than 1 wt% cationic surfactants, less than 1 wt% amphoteric surfactants and less than 1 wt% zwitterionic surfactants.
- Suitable synthetic (non-soap) anionic surfactants are water-soluble salts of organic sulphuric acid mono-esters and sulfonic acids which have in the molecular structure a branched or straight chain alkyi group containing from 6 to 22 carbon atoms in the alkyi part.
- anionic surfactants are (primary) long chain (e.g. 6-22 C-atoms) alcohol sulfates (hereinafter referred to as PAS), especially those obtained by sulphating the fatty alcohols produced by reducing the glycerides of tallow or coconut oil; secondary alkanesulfonates; and mixtures thereof.
- PAS primary alcohol sulfates
- alkylglyceryl ether sulfates especially the ethers of fatty alcohols derived from tallow and coconut oil; fatty acid monoglyceride sulfates; sulfates of ethoxylated aliphatic alcohols containing 1 -12 ethyleneoxy groups; alkylphenol ethyleneoxy-ether sulfates with from 1 to 8 ethyleneoxy units per molecule and in which the alkyl groups contain from 4 to 14 carbon atoms; the reaction product of fatty acids esterified with isethionic acid and neutralised with alkali, and mixtures thereof.
- Nonionic surfactants tend to reduce the foam produced on use of the composition.
- suitable nonionic surfactants may be broadly described as compounds produced by the condensation of simple alkylene oxides, which are hydrophilic in nature, with an aliphatic or alkyl-aromatic hydrophobic compound having a reactive hydrogen atom. The length of the hydrophilic or
- polyoxyalkylene chain which is attached to any particular hydrophobic group may be readily adjusted to yield a compound having the desired balance between hydrophilic and hydrophobic elements. This enables the choice of nonionic surfactants with the right ⁇ _ ⁇ ' value to be selected.
- the HLB value is a measure of the hydrophilic/lipophilic balance of such a surfactant.
- nonionic surfactants include: the condensation products of aliphatic alcohols having from 8 to 22 carbon atoms in either straight or branched chain configuration with ethylene oxide, such as a coconut alcohol/ethylene oxide condensates having from 2 to 15 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols having C6-C15 alkyl groups with 5 to 25 moles of ethylene oxide per mole of alkylphenol; and condensates of the reaction product of ethylene-diamine and propylene oxide with ethylene oxide, the condensates containing from 40 to 80 wt% of ethyleneoxy groups and having a molecular weight of from 5,000 to 1 1 ,000.
- nonionic surfactants include for example: tertiary amine oxides of structure R1 R2R3N-O, where Ri is an alkyl group of 8 to 20 carbon atoms and R2 and R3 are each alkyl or hydroxyalkyl groups of 1 to 3 carbon atoms, e.g.
- the amount present in the cleaning compositions of the invention will generally be at least 0.1 wt%.
- the amount of nonionic surfactant will be in the region of 0.5 wt%.
- Suitable amphoteric surfactants are derivatives of aliphatic secondary and tertiary amines containing an alkyl group of 8 to 20 carbon atoms and an aliphatic group substituted by an anionic water-solubilising group, for instance sodium 3-dodecylamino-propionate, sodium 3-dodecylaminopropane-sulfonate and sodium N-2-hydroxy-dodecyl-N- methyltaurate.
- Suitable cationic surfactants may be selected from quaternary ammonium salts having one or two alkyl or aralkyl groups of from 8 to 20 carbon atoms and two or three small aliphatic (for example, methyl) groups, for instance cetyltrimethylammonium chloride.
- a specific group of surfactants are the tertiary amines obtained by condensation of ethylene and/or propylene oxide with long chain aliphatic amines.
- the compounds behave like nonionic surfactants in alkaline medium and like cationic surfactants in acid medium.
- Suitable zwitterionic surfactants may be selected from derivatives of aliphatic quaternary ammonium, sulfonium and phosphonium compounds having an aliphatic group of from 8 to 18 carbon atoms and an aliphatic group substituted by an anionic water-solubilising group, for instance betaine and betaine derivatives such as alkyl betaine, in particular C12-C16 alkyl betaine, 3-(N,N-dimethyl-N-hexadecylammonium)- propane 1 -sulfonate betaine, 3-(dodecylmethyl-sulfonium)-propane 1 -sulfonate betaine, 3-(cetylmethyl-phosphonium)-propane-1-sulfonate betaine and N,N-dimethyl-N-dodecyl- glycine.
- betaines are the alkylamidopropyl betaines for example, those wherein the alkylamido group
- surfactants are compounds commonly used as surface- active agents given in the well-known textbooks: 'Surface Active Agents' Vol.1 , by
- the formulation comprises at least 5 wt% of a pH adjustment, buffering and thickening system.
- the pH adjustment, buffering and thickening system preferably comprises no more than 10 wt% of the total formulation.
- Most preferably the amount of pH adjustment, buffering and thickening system comprises 5 to 7 wt% of the total formulation.
- the components of the pH adjustment, buffering and thickening system are selected from the group consisting of sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate.
- the pH adjustment, buffering and thickening system comprises a mixture of sodium carbonate and sodium hydrogen carbonate.
- the pH adjustment, buffering and thickening system provides a formulation with a viscosity level of between 1 .8 and 6.0 Pa.s over the preferred pH range of 9.2 to 1 1 . More preferably, the pH adjustment, buffering and thickening system provides a formulation with the required viscosity level of between 1.85 and 6.0 Pa.s over the preferred pH range of 9.2 to 10.8. Even more preferably, the pH adjustment, buffering and thickening system provides a formulation with the required viscosity level of between 1 .85 and 6.0 Pa.s over the preferred pH range of 9.2 to 10.5. Perfumes
- the formulation comprises a perfume.
- the perfume is preferably present in the range from 0.001 to 3 wt%, most preferably 0.1 to 1 wt%. Suitable examples of perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992
- the formulation may include optional ingredients, such as, abrasive particles and additional ingredients which aid formulation properties, stability and cleaning performance as well as one or more optional ingredients conventionally included in liquid hand dish wash formulations such as, for example: perfume carriers, fluorescers, colourants, hydrotropes, anti-redeposition agents, polyelectrolytes, enzymes, pearlescers, anti- spotting agents, germicides, fungicides, anti-corrosion agents, anti-static agents, crystal growth inhibitors, anti-oxidants, anti-reducing agents, dyes, and water activity modifiers such as sugars, salts, proteins and water soluble homo- and co-polymers.
- optional ingredients such as, abrasive particles and additional ingredients which aid formulation properties, stability and cleaning performance as well as one or more optional ingredients conventionally included in liquid hand dish wash formulations such as, for example: perfume carriers, fluorescers, colourants, hydrotropes, anti-redeposition agents, polyelectrolytes, enzymes, pearlescers, anti- spotting agents,
- a preservative is also desirable in the formulation of the present invention, for example a mixture of biocides CIT and MIT (5-Chloro-2-methyl-4- isothiazolinon-3-one / 2-Methyl-4-isothiazolin-3-one).
- BIT (1 ,2-Benzisothiazol-3(2H)-one) may also be used.
- the level of preservative will vary according to the expected storage temperature and the quality of raw materials. A value of from 0.0001 to 0.1 wt % is typical.
- Sodium EDTA chelant may also be advantageously included in the formulation at a level of 0.01 to 0.5 wt%.
- DMDMH glycol dimethoxylate
- DMDMH glycol dimethoxylate
- the formulation may comprise detergent builders in an amount of from 0.1 to 25 wt%. Suitable inorganic and organic builders are well known to those skilled in the art. For example, citric acid is a preferred buffer/builder and may suitably be included at a level of from 0.01 to 0.5 wt%.
- the formulation may also comprise ingredients such as but not limited to: colorants, whiteners, optical brighteners, soil suspending agents, detersive enzymes, compatible bleaching agents (particularly peroxide compounds and active chlorine releasing compounds), solvents, co-solvents, gel-control agents, freeze-thaw stabilisers, bactericides, preservatives, hydrotropes, polymers and perfumes.
- optional enzymes include amylase, lipase, cellulase, protease, mannanase, and pectate lyase.
- the alkaline hand dishwash aqueous liquid formulation has a viscosity in the range of from 1.5 to 6.0 Pa.s when measured at a shear rate of 21 s "1 at 25 °C. More preferably the formulation has a viscosity in the range of from 1.75 to 5.5 Pa.s when measured at a shear rate of 21 s "1 at 25 °C. Even more preferably the formulation has a viscosity in the range of from 2.0 to 5.5 Pa.s when measured at a shear rate of 21 s "1 at 25 °C. Still even more preferably the formulation has a viscosity in the range of from 2.5 to 4.5 Pa.s, when measured at a shear rate of 21 s "1 at 25 °C.
- LAS linear alkyl benzene sulfonate
- SLES sodium dodecyl benzene sulfonate
- the viscosity is measured using an Anton Paar Physica - DSR 301 measuring head Automated Sample Changer (ASC), geometry - CC27, DIN concentric cylinder.
- ASC Automated Sample Changer
- the formulation may be packaged in any suitable form of container.
- the formulation is packaged in a plastic bottle with a detachable closure or pouring spout.
- the bottle may be rigid or deformable and may optionally comprise a dosing device to deliver set amounts of liquids when in use.
- a deformable bottle offers the advantage that it allows the bottle to be squeezed to aid dispensing of the liquid formulation. If clear bottles are used, they may be formed from Polyethylene terephthalate (PET).
- Polyethylene or clarified polypropylene may also be used.
- the container is clear enough so that the liquid formulation with any visual cues therein, is visible from the outside.
- the bottle may also be provided with one or more labels.
- the bottle may be provided with a shrink wrap sleeve which is desirably at least partially
- any transparent label to the bottle should preferably not adversely affect the transparency of the bottle.
- Water is Demineralised water
- NaOH sodium hydroxide base
- LAS acid is linear alkyl benzene sulfonic acid (anionic surfactant).
- NaHCOs sodium hydrogen carbonate (also called sodium bicarbonate)
- Na 2 C0 3 sodium carbonate
- SLES (1 EO) is sodium dodecyl benzene sulfonate (SLES) 1 EO (anionic
- Preservative antimicrobial preservative solution of chloromethylisothiazolin-3- one (CMIT) and methylisothiazolin-3-one (MIT) in water ex Dow chemical and ex Arch Chemicals
- Perfume is free oil perfume, lime juice, green lime
- Lutensol is non-ionic surfactant ex BASF Unless otherwise specified, the amounts and proportions used in the methods and formulations are by weight.
- Aqueous alkaline hand dishwash liquid detergent formulations were prepared using the components listed in Table 1 over a range of pH concentrations by mixing the ingredients listed therein. The components were diluted further with demineralised water to give the concentration levels indicated in Tablel .
- a 25% solution by weight of each aqueous alkaline hand dishwash liquid detergent formulation listed in Table 1 was prepared using a 3 : 1 weight ratio of water : detergent.
- Soiled brushed stainless steel tiles were prepared by coating the tiles with a three way soil monitor, that is a mixture of fat, protein, and starch and then baked at 100 0 C for 1 hour. A number of tiles were then soaked in each of the five aqueous alkaline hand dishwash liquid detergent formulations before cleaning.
- Cleaning was carried out using a custom Martindale Abrasion rig called a WIRA.
- a piece of ballerina cloth was affixed to the cleaning head which was placed in contact with a tile specially designed to simulate a dish surface and to give highly repeatable cleaning results. Cleaning was achieved by moving the cleaning head in a lissajous motion. The soak time prior to the cleaning process was measured using a count-down timer before starting the abrasion rig. Cleaned tiles were rinsed with demineralised water and left to dry overnight before investigating the results of the cleaning process.
- compositions therefore provide an aqueous alkaline hand dishwash liquid detergent formulation which is able to meet the cleaning requirements of obstinate soiling and which still provides the required rheology parameters required of hand dish wash formulations using pH adjustment, buffering and thickening system in the form of a combination of sodium carbonate and sodium hydrogen carbonate.
- Aqueous alkaline hand dishwash liquid detergent formulations were prepared using the components listed in Table 3 over a range of ratios of linear alkyl benzene sulfonate (LAS Acid) to sodium dodecyl benzene sulfonate, at pH 9.5, by mixing the ingredients listed therein. The components were diluted further with demineralised water to give the concentration levels indicated in Table 3.
- LAS Acid linear alkyl benzene sulfonate
- sodium dodecyl benzene sulfonate at pH 9.5
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Abstract
Description
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PCT/EP2015/058969 WO2015172993A2 (en) | 2014-05-14 | 2015-04-24 | An aqueous alkaline hand dishwash liquid detergent formulation |
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DE102012217139A1 (en) * | 2012-09-24 | 2014-03-27 | Henkel Ag & Co. Kgaa | Pasty hand dishwashing detergent |
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