WO2022078916A1 - Composition - Google Patents
Composition Download PDFInfo
- Publication number
- WO2022078916A1 WO2022078916A1 PCT/EP2021/077950 EP2021077950W WO2022078916A1 WO 2022078916 A1 WO2022078916 A1 WO 2022078916A1 EP 2021077950 W EP2021077950 W EP 2021077950W WO 2022078916 A1 WO2022078916 A1 WO 2022078916A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- premix
- surfactant
- water
- sulphated
- composition
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 99
- 239000004094 surface-active agent Substances 0.000 claims abstract description 55
- 150000003839 salts Chemical class 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003599 detergent Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 16
- -1 alkylbenzene sulphonate Chemical class 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 7
- 239000002736 nonionic surfactant Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 3
- 239000011256 inorganic filler Substances 0.000 claims 1
- 229910003475 inorganic filler Inorganic materials 0.000 claims 1
- 235000002639 sodium chloride Nutrition 0.000 description 30
- 229910052708 sodium Inorganic materials 0.000 description 22
- 239000011734 sodium Substances 0.000 description 21
- 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 19
- 125000000217 alkyl group Chemical group 0.000 description 19
- 239000000463 material Substances 0.000 description 14
- 238000010790 dilution Methods 0.000 description 11
- 239000012895 dilution Substances 0.000 description 11
- 239000006260 foam Substances 0.000 description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- 229910052783 alkali metal Inorganic materials 0.000 description 10
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 8
- 150000001340 alkali metals Chemical class 0.000 description 8
- 235000014113 dietary fatty acids Nutrition 0.000 description 8
- 239000000194 fatty acid Substances 0.000 description 8
- 229930195729 fatty acid Natural products 0.000 description 8
- 150000004665 fatty acids Chemical class 0.000 description 8
- 229910052700 potassium Inorganic materials 0.000 description 8
- 239000011591 potassium Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 239000010457 zeolite Substances 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 5
- 239000002738 chelating agent Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 239000010452 phosphate Substances 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 235000017550 sodium carbonate Nutrition 0.000 description 5
- 125000002947 alkylene group Chemical group 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 229920005646 polycarboxylate Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- 239000003093 cationic surfactant Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 159000000001 potassium salts Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000001509 sodium citrate Substances 0.000 description 3
- 235000011083 sodium citrates Nutrition 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- 229910001428 transition metal ion Inorganic materials 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 229920001202 Inulin Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 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 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 2
- 230000009920 chelation Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 description 2
- 229940073507 cocamidopropyl betaine Drugs 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- JYJIGFIDKWBXDU-MNNPPOADSA-N inulin Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@]1(OC[C@]2(OC[C@]3(OC[C@]4(OC[C@]5(OC[C@]6(OC[C@]7(OC[C@]8(OC[C@]9(OC[C@]%10(OC[C@]%11(OC[C@]%12(OC[C@]%13(OC[C@]%14(OC[C@]%15(OC[C@]%16(OC[C@]%17(OC[C@]%18(OC[C@]%19(OC[C@]%20(OC[C@]%21(OC[C@]%22(OC[C@]%23(OC[C@]%24(OC[C@]%25(OC[C@]%26(OC[C@]%27(OC[C@]%28(OC[C@]%29(OC[C@]%30(OC[C@]%31(OC[C@]%32(OC[C@]%33(OC[C@]%34(OC[C@]%35(OC[C@]%36(O[C@@H]%37[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O%37)O)[C@H]([C@H](O)[C@@H](CO)O%36)O)[C@H]([C@H](O)[C@@H](CO)O%35)O)[C@H]([C@H](O)[C@@H](CO)O%34)O)[C@H]([C@H](O)[C@@H](CO)O%33)O)[C@H]([C@H](O)[C@@H](CO)O%32)O)[C@H]([C@H](O)[C@@H](CO)O%31)O)[C@H]([C@H](O)[C@@H](CO)O%30)O)[C@H]([C@H](O)[C@@H](CO)O%29)O)[C@H]([C@H](O)[C@@H](CO)O%28)O)[C@H]([C@H](O)[C@@H](CO)O%27)O)[C@H]([C@H](O)[C@@H](CO)O%26)O)[C@H]([C@H](O)[C@@H](CO)O%25)O)[C@H]([C@H](O)[C@@H](CO)O%24)O)[C@H]([C@H](O)[C@@H](CO)O%23)O)[C@H]([C@H](O)[C@@H](CO)O%22)O)[C@H]([C@H](O)[C@@H](CO)O%21)O)[C@H]([C@H](O)[C@@H](CO)O%20)O)[C@H]([C@H](O)[C@@H](CO)O%19)O)[C@H]([C@H](O)[C@@H](CO)O%18)O)[C@H]([C@H](O)[C@@H](CO)O%17)O)[C@H]([C@H](O)[C@@H](CO)O%16)O)[C@H]([C@H](O)[C@@H](CO)O%15)O)[C@H]([C@H](O)[C@@H](CO)O%14)O)[C@H]([C@H](O)[C@@H](CO)O%13)O)[C@H]([C@H](O)[C@@H](CO)O%12)O)[C@H]([C@H](O)[C@@H](CO)O%11)O)[C@H]([C@H](O)[C@@H](CO)O%10)O)[C@H]([C@H](O)[C@@H](CO)O9)O)[C@H]([C@H](O)[C@@H](CO)O8)O)[C@H]([C@H](O)[C@@H](CO)O7)O)[C@H]([C@H](O)[C@@H](CO)O6)O)[C@H]([C@H](O)[C@@H](CO)O5)O)[C@H]([C@H](O)[C@@H](CO)O4)O)[C@H]([C@H](O)[C@@H](CO)O3)O)[C@H]([C@H](O)[C@@H](CO)O2)O)[C@@H](O)[C@H](O)[C@@H](CO)O1 JYJIGFIDKWBXDU-MNNPPOADSA-N 0.000 description 2
- 229940029339 inulin Drugs 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 2
- 229940079842 sodium cumenesulfonate Drugs 0.000 description 2
- 229940048842 sodium xylenesulfonate Drugs 0.000 description 2
- 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 2
- KVCGISUBCHHTDD-UHFFFAOYSA-M sodium;4-methylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1 KVCGISUBCHHTDD-UHFFFAOYSA-M 0.000 description 2
- QEKATQBVVAZOAY-UHFFFAOYSA-M sodium;4-propan-2-ylbenzenesulfonate Chemical compound [Na+].CC(C)C1=CC=C(S([O-])(=O)=O)C=C1 QEKATQBVVAZOAY-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 150000003871 sulfonates Chemical class 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- JSYPRLVDJYQMAI-ODZAUARKSA-N (z)-but-2-enedioic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)\C=C/C(O)=O JSYPRLVDJYQMAI-ODZAUARKSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-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 class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 108010059892 Cellulase Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 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
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 108010055059 beta-Mannosidase Proteins 0.000 description 1
- 239000012455 biphasic mixture Substances 0.000 description 1
- CMFFZBGFNICZIS-UHFFFAOYSA-N butanedioic acid;2,3-dihydroxybutanedioic acid Chemical class OC(=O)CCC(O)=O.OC(=O)CCC(O)=O.OC(=O)C(O)C(O)C(O)=O CMFFZBGFNICZIS-UHFFFAOYSA-N 0.000 description 1
- HXDRSFFFXJISME-UHFFFAOYSA-N butanedioic acid;2,3-dihydroxybutanedioic acid Chemical class OC(=O)CCC(O)=O.OC(=O)C(O)C(O)C(O)=O HXDRSFFFXJISME-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229940106157 cellulase Drugs 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical class OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940098691 coco monoethanolamide Drugs 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000004064 cosurfactant Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical class C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052739 hydrogen Chemical group 0.000 description 1
- 239000001257 hydrogen Chemical group 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000005341 metaphosphate group Chemical group 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 150000004028 organic sulfates Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 108010087558 pectate lyase Proteins 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920001521 polyalkylene glycol ether Polymers 0.000 description 1
- 229920001444 polymaleic acid Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000001508 potassium citrate Substances 0.000 description 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical class [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 1
- 235000011082 potassium citrates Nutrition 0.000 description 1
- AVTYONGGKAJVTE-UHFFFAOYSA-L potassium tartrate Chemical class [K+].[K+].[O-]C(=O)C(O)C(O)C([O-])=O AVTYONGGKAJVTE-UHFFFAOYSA-L 0.000 description 1
- 239000001472 potassium tartrate Substances 0.000 description 1
- 235000011005 potassium tartrates Nutrition 0.000 description 1
- 238000001556 precipitation Methods 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
- 238000009517 secondary packaging Methods 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229940079776 sodium cocoyl isethionate Drugs 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 239000001433 sodium tartrate Substances 0.000 description 1
- 235000011004 sodium tartrates Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- JZBRFIUYUGTUGG-UHFFFAOYSA-J tetrapotassium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical class [K+].[K+].[K+].[K+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O JZBRFIUYUGTUGG-UHFFFAOYSA-J 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- JEVFKQIDHQGBFB-UHFFFAOYSA-K tripotassium;2-[bis(carboxylatomethyl)amino]acetate Chemical class [K+].[K+].[K+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O JEVFKQIDHQGBFB-UHFFFAOYSA-K 0.000 description 1
- 238000005406 washing Methods 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—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
-
- 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
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0094—Process for making liquid detergent compositions, e.g. slurries, pastes or gels
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
Definitions
- the present invention relates to a powder premix for forming a dishwash liquid composition on dilution with water.
- WO 97/39100 discloses a process for making detergent agglomerates in which a high active surfactant paste and a detergent builder are agglomerated together.
- the process entails maintaining the high active surfactant paste in a highly stable, pumpable and transportable form over an extended period of time. In this way, the process facilitates multi-locational, large-scale manufacture of modem compact detergent products.
- the high active surfactant paste can be manufactured in one facility, and thereafter, stored and transported to a remote facility for further processing into the finished detergent agglomerates.
- T raditional powder detergent compositions are not suitable for forming liquid detergent compositions on dilution with water since they merely form a wash liquor.
- the surfactant chassis commonly used in powder detergent compositions ones usually comprising a high level of linear alkyl benzene sulphonate (LAS) compared to other surfactants such as the alkyl ether sulphates do not form stable compositions but instead tend to form biphasic mixtures on dilution with small amounts of water, much lower than used in the wash process.
- LAS linear alkyl benzene sulphonate
- Dilutable products are highly desired by the environmentally conscious consumer since they can be purchased at source in a low volume and with limited secondary packaging. Once in the domestic environment they can be diluted in a ‘keeper 1 container which permits dilution up to 10 or more times in water, i.e. one part powder to many parts water, to form a liquid composition. Thus, not only is a stable powder formulation desirable but the resulting dishwash liquid composition also has to be stable and to meet consumer expectations in physical aesthetics and performance.
- a powder premix for forming a stable liquid dishwash detergent composition when mixed with water, said premix comprising from 30-60% wt. of the premix a surfactant, and 18 to 60% wt. of the premix a water-soluble salt, wherein the surfactant comprises a sulphated surfactant, wherein the water-soluble salt and surfactant together comprise at least 70% wt. of the composition and wherein the weight ratio between the sulphated surfactant and the water-soluble salt is at least 0.5: 1.
- the term powder in the context of this invention denotes free-flowing or compacted solid forms.
- the liquid detergent formed by diluting the powder premix in water is transparent.
- transparent means that the composition when diluted 1 part premix in 3 parts water is less than 20 NTU.
- composition according to the invention is a free-flowing powdered solid, with a loose (unpackaged) bulk density generally ranging from about 200g/l to about 1 ,300 g/l, preferably from about 400 g/l to about 1 ,000 g/l, more preferably from about 500g/l to about 900 g/l.
- the powder premix comprises a non-sulphated surfactant in addition to the sulphated surfactant.
- the weight ratio of sulphated to non-sulphated surfactant is from 1 : 1 to 100: 1 , more preferably from 1 .1 : 1 to 10: 1. Such weight ratios are determined with reference to the weight of the material added to the composition.
- the particulate premix composition of the invention comprises from 30 to 60%, preferably from 30 to 55%, and more preferably from 35 to 50% (by weight based on the total weight of the premix composition) surfactant.
- surfactant in the context of particulate detergent formulations denotes a surfactant which provides a detersive (i.e. cleaning) effect to dishwash treated as part of a domestic laundering process.
- the powder premix comprises sulphated surfactant and non-sulphated surfactant, in a weight ratio of from 1 : 1 to 15: 1 (sulphated to non-sulphated surfactant) and especially preferably from 1 .5: 1 to 3: 1.
- the powder premix comprises a water-soluble salt and the water soluble salt is preferably present in a total amount ranging from about 8 to about 60%, preferably from about 10 to 55% and most preferably from 25 to 50% (by weight based on the total weight of the premix composition).
- Preferred water-soluble salts include sodium carbonate, potassium carbonate, sodium chloride, sodium sulphate, sodium bicarbonate, sodium citrate and mixtures thereof.
- the more preferred water-soluble salts are sodium chloride, sodium sulphate, sodium carbonate and sodium citrate.
- the most preferred is sodium carbonate.
- the weight ratio between the water-soluble salt and the sulphated surfactant is at least 0.5 to 1 and preferably to 3:1 .
- the weight ratio is from 1 .1 :1 to 1 .9:1 .
- Optimal weight ratios depend on the water-soluble salt used.
- the powder premix comprises water soluble salt, and non-sulphated surfactant in a weight ratio of from 2: 1 to 8: 1.
- the non-sulphated surfactant is selected from linear alkylbenzene sulphonate, non-ionic surfactants, methyl ester sulfonates (MES), alpha olefin sulphonate (AOS), sodium toluene sulfonate (STS), sodium cumene sulfonate (SOS), sodium xylene sulfonate (SXS) and mixtures thereof.
- MES methyl ester sulfonates
- AOS alpha olefin sulphonate
- STS sodium toluene sulfonate
- SOS sodium cumene sulfonate
- SXS sodium xylene sulfonate
- the most preferred non-sulphate surfactants are LAS and non-ionic surfactants which may be used in mixtures.
- a class of non-soap anionic surfactant for use in particulate premix compositions includes alkylbenzene sulfonates, particularly linear alkylbenzene sulfonates (LAS) with an alkyl chain length of from 10 to 18 carbon atoms.
- LAS linear alkylbenzene sulfonates
- Commercial LAS is a mixture of closely related isomers and homologues alkyl chain homologues, each containing an aromatic ring sulfonated at the “para" position and attached to a linear alkyl chain at any position except the terminal carbons.
- the linear alkyl chain typically has a chain length of from 11 to 15 carbon atoms, with the predominant materials having a chain length of about C12.
- Each alkyl chain homologue consists of a mixture of all the possible sulfophenyl isomers except for the 1 -phenyl isomer.
- LAS is normally formulated into compositions in acid (i.e. HLAS) form and then at least partially neutralized in-situ.
- Nonionic surfactants for use in particulate premix compositions are typically polyoxyalkylene compounds, i.e. the reaction product of alkylene oxides (such as ethylene oxide or propylene oxide or mixtures thereof) with starter molecules having a hydrophobic group and a reactive hydrogen atom which is reactive with the alkylene oxide.
- Such starter molecules include alcohols, acids, amides or alkyl phenols. Where the starter molecule is an alcohol, the reaction product is known as an alcohol alkoxylate.
- the polyoxyalkylene compounds can have a variety of block and heteric (random) structures. For example, they can comprise a single block of alkylene oxide, or they can be diblock alkoxylates or triblock alkoxylates.
- the blocks can be all ethylene oxide or all propylene oxide, or the blocks can contain a heteric mixture of alkylene oxides.
- examples of such materials include Cs to C22 alkyl phenol ethoxylates with an average of from 5 to 25 moles of ethylene oxide per mole of alkyl phenol; and aliphatic alcohol ethoxylates such as Cs to Cis primary or secondary linear or branched alcohol ethoxylates with an average of from 2 to 40 moles of ethylene oxide per mole of alcohol.
- a preferred class of nonionic surfactant for use in particulate premix compositions includes aliphatic Cs to Cis, more preferably C12 to C15 primary linear alcohol ethoxylates with an average of from 3 to 20, more preferably from 5 to 10 moles of ethylene oxide per mole of alcohol.
- the total level of non-ionic surfactant may suitably range from 1 to 10% (by weight based on the total weight of the composition).
- the powder premix comprises 0 to 30% non-sulphated surfactant by wt. of the premix.
- non-sulphated preferably means sulphonated.
- the sulphated surfactant is selected from ethoxylated alkyl sulphates, primary alcohol sulphates and mixtures thereof.
- Non-soap anionic surfactants for use in particulate premix compositions are typically salts of organic sulfates and sulfonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term “alkyl” being used to include the alkyl portion of higher acyl radicals. Examples of such materials include alkyl sulfates, alkyl ether sulfates, alkaryl sulfonates, alpha-olefin sulfonates and mixtures thereof.
- the alkyl radicals preferably contain from 10 to 18 carbon atoms and may be unsaturated.
- the alkyl ether sulfates may contain from one to ten ethylene oxide or propylene oxide units per molecule, and preferably contain one to three ethylene oxide units per molecule.
- the counterion for anionic surfactants is generally an alkali metal such as sodium or potassium; or an ammoniacal counterion such as monoethanolamine, (MEA) diethanolamine (DEA) or triethanolamine (TEA). Mixtures of such counterions may also be employed.
- the powder premix comprises from 30 to 60% sulphated surfactant.
- the powder premix comprises from 8 to 60% wt. water-soluble salt. More preferably, the premix composition comprises at least 10% water-soluble salt, more preferably at least 35%, especially preferably at least 40% wt. water-soluble salt.
- the weight ratio between the water-soluble salt and the total surfactant is from 0.1 : 1 to 2: 1 and more preferably, 0.9:1 to 1.7:1.
- the weight ratio between the water-soluble salt and the total non-sulphated surfactant (more preferably, the sulphonated surfactant) level is from 0.1 : 1 to 5: 1 , more preferably from 2: 1 to 4.5:1 and especially preferably from 2.5:1 to 4:1.
- the weight ratio between the water-soluble salt and, where present, the total ethoxylated sulphated surfactant level is from 0.01 : 1 to 2.5: 1.
- Builders are principally used to reduce water hardness. This is done either by sequestration or chelation (holding hardness minerals in solution), by precipitation (forming an insoluble substance), or by ion exchange (trading electrically charged particles). Builders can also supply and maintain alkalinity, which assists cleaning, especially of acid soils; help keep removed soil from redepositing during washing; and emulsify oily and greasy soils.
- Builders for use in particulate premix compositions can be of the organic or inorganic type, or a mixture thereof. Non-phosphate builders are preferred. However, we have found that builder types have a deleterious effect on dilution performance and in particular on the stability of the diluted premix.
- Inorganic, non-phosphate builders for use in particulate premix compositions include carbonates, silicates, zeolites, and mixtures thereof however, carbonate builders are strongly preferred.
- the water-soluble salt is a carbonate builder.
- Suitable carbonate builders for use in particulate premix compositions include mixed or separate, anhydrous or partially hydrated alkali metal carbonates, bicarbonates or sesquicarbonates.
- the alkali metal is sodium and/or potassium, with sodium carbonate being particularly preferred.
- silicate builders include amorphous forms and/or crystalline forms of alkali metal (such as sodium) silicates such as crystalline layered sodium silicates (phyllosilicates) of the general formula (I)
- Such materials can be prepared with different crystal structures, referred to as a, p, y and 5 phases, with 6-sodium disilicate being noteworthy.
- the frameworks acquire their negative charge by substitution of some Si by Al. The negative charge is neutralised by cations and the frameworks are sufficiently open to contain, under normal conditions, mobile water molecules.
- Suitable zeolite builders for use in the invention may be defined by the general formula (II):
- Suitable organic, non-phosphate builders for use in particulate premix compositions include polycarboxylates, in acid and/or salt form.
- alkali metal e.g. sodium and potassium
- alkanolammonium salts are preferred.
- Specific examples of such materials include sodium and potassium citrates, sodium and potassium tartrates, the sodium and potassium salts of tartaric acid monosuccinate, the sodium and potassium salts of tartaric acid disuccinate, sodium and potassium ethylenediaminetetraacetates, sodium and potassium N(2-hydroxyethyl)- ethylenediamine triacetates, sodium and potassium nitrilotriacetates and sodium and potassium N- (2-hydroxyethyl)-nitrilodiacetates.
- Polymeric polycarboxylates may also be used, such as polymers of unsaturated monocarboxylic acids (e.g. acrylic, methacrylic, vinylacetic, and crotonic acids) and/or unsaturated dicarboxylic acids (e.g. maleic, fumaric, itaconic, mesaconic and citraconic acids and their anhydrides).
- unsaturated monocarboxylic acids e.g. acrylic, methacrylic, vinylacetic, and crotonic acids
- unsaturated dicarboxylic acids e.g. maleic, fumaric, itaconic, mesaconic and citraconic acids and their anhydrides
- Specific examples of such materials include polyacrylic acid, polymaleic acid, and copolymers of acrylic and maleic acid.
- the polymers may be in acid, salt or partially neutralised form and may suitably have a molecular weight (Mw) ranging from about 1 ,000 to 100,000, preferably from about 2,000 to about 85,000,
- Preferred builders for use in particulate premix compositions may be selected from zeolites (of the general formula (II) defined above), sodium carbonate, b-sodium disilicate and mixtures thereof.
- the level of phosphate builders in a particulate premix composition is less than 1% (by weight based on the total weight of the composition).
- phosphate builder denotes alkali metal, ammonium and alkanolammonium salts of polyphosphate, orthophosphate, and/or metaphosphate (e.g. sodium tri polyphosphate).
- the composition comprises from 0 to 5% wt of the premix non-carbonate builder such as zeolite, silicate and polycarboxylates. More preferably, the composition comprises from 0 to 1 , most preferably from 0 to 0.1% wt. builder selected from zeolite, polycarboxylate and silicate.
- the premix non-carbonate builder such as zeolite, silicate and polycarboxylates. More preferably, the composition comprises from 0 to 1 , most preferably from 0 to 0.1% wt. builder selected from zeolite, polycarboxylate and silicate.
- a particulate composition may also include one or more fillers to assist in providing the desired density and bulk to the composition.
- Suitable fillers for use in the invention may generally be selected from neutral salts with a solubility in water of at least 1 gram per 100 grams of water at 20° C; such as alkali metal, alkaline earth metal, ammonium or substituted ammonium chlorides, fluorides, acetates and sulfates and mixtures thereof.
- Preferred fillers for use in the invention include alkali metal (more preferably sodium and/or potassium) sulfates and chlorides and mixtures thereof, with sodium sulfate and/or sodium chloride being most preferred.
- Filler when included, may be present in a total amount ranging from 0 to about 1%, preferably from about 0 to about 0.50% (by weight based on the total weight of the premix composition).
- Magnesium sulphate is desirably included from 0.5 to 5 wt. percent in order to ensure the desired rheological properties are achieved.
- the composition comprises a foam booster.
- the foam booster is included to improve foaming performance in the final detergent wash liquor but without also boosting the foaming during dilution to an extent where the dilution of the premix by the consumer in the domestic environment is impacted.
- a foam booster which dramatically increases the foaming when the consumer mixes with water may cause too much foam to be generated thus preventing adequate mixing by the consumer or even that less water than desired is added to the premix. It also reduces the chances of the right amount of water to be added to the premix.
- the foam booster is selected from alkyl ether carboxylic acids such as alcohol polyalkylene glycol ether acetic acid, alkali-metal alkyl isethionates such as sodium cocoyl isethionate, alkali-metal inulin derivatives such as sodium carboxymethyl inulin (with a degree of substitution of from 1 to 5, more preferably from 2 to 2.5), monoisopropyl amine alkyl benzene sulphonate, cocomonoethanolamide, betaines such as cocamidopropyl betaine, sodium alkyl benzene sulphonate, C12-14 alkyl (hydroxyethyl)dimethyl quaternary ammonium chlorides, polyethylene glycol, methyl, 2-propyl ether carboxylic acids such as alcohol polyalkylene glycol ether acetic acid, alkali-metal alkyl isethionates such as sodium cocoyl isethionate, alkali-metal inulin derivatives such as
- the foam booster is present at a sufficient level to provide from 0.1 to 0.5% wt. ion the diluted mix.
- a particulate premix composition may also contain one or more cosurfactants (such as amphoteric (zwitterionic) and/or cationic surfactants) in addition to the non-soap anionic and/or nonionic detersive surfactants described above.
- cosurfactants such as amphoteric (zwitterionic) and/or cationic surfactants
- Specific cationic surfactants include Cs to Cis alkyl dimethyl ammonium halides and derivatives thereof in which one or two hydroxyethyl groups replace one or two of the methyl groups, and mixtures thereof.
- Cationic surfactant when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the premix composition).
- amphoteric (zwitterionic) surfactants include alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulphobetaines (sultaines), alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkylamphoglycinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates, having alkyl radicals containing from about 8 to about 22 carbon atoms, the term “alkyl” being used to include the alkyl portion of higher acyl radicals.
- Amphoteric (zwitterionic) surfactant when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the premix composition).
- a premix composition of the invention may contain one or more fatty acids and/ or salts thereof.
- Suitable fatty acids in the context of this invention include aliphatic carboxylic acids of formula RCOOH, where R is a linear or branched alkyl or alkenyl chain containing from 6 to 24, more preferably 10 to 22, most preferably from 12 to 18 carbon atoms and 0 or 1 double bond.
- R is a linear or branched alkyl or alkenyl chain containing from 6 to 24, more preferably 10 to 22, most preferably from 12 to 18 carbon atoms and 0 or 1 double bond.
- saturated C12-18 fatty acids such as lauric acid, myristic acid, palmitic acid or stearic acid
- fatty acid mixtures in which 50 to 100% (by weight based on the total weight of the mixture) consists of saturated C12-18 fatty acids.
- Such mixtures may typically be derived from natural fats and/or optionally hydrogenated natural oils (such as coconut oil, palm kernel oil or tallow).
- the fatty acids may be present in the form of their sodium, potassium or ammonium salts and/or in the form of soluble salts of organic bases, such as mono-, di- or triethanolamine.
- Fatty acids and/or their salts when included, may be present in an amount ranging from about 0.25 to 5%, more preferably from 0.5 to 5%, most preferably from 0.75 to 4% (by weight based on the total weight of the premix composition).
- fatty acids and/or their salts are not included in the level of surfactant or in the level of builder.
- a particulate premix composition may also contain one or more chelating agents for transition metal ions.
- Such chelating agents may also have calcium and magnesium chelation capacity, but preferentially bind heavy metal ions such as iron, manganese and copper.
- Such chelating agents may help to improve the stability of the composition and protect for example against transition metal catalyzed decomposition of certain ingredients.
- Suitable transition metal ion chelating agents include phosphonates, in acid and/or salt form.
- alkali metal e.g. sodium and potassium
- alkanolammonium salts are preferred.
- Specific examples of such materials include aminotris(methylene phosphonic acid) (ATMP), 1-hydroxyethylidene diphosphonic acid (HEDP) and diethylenetriamine penta(methylene phosphonic acid (DTPMP) and their respective sodium or potassium salts.
- HEDP is preferred. Mixtures of any of the above described materials may also be used.
- Transition metal ion chelating agents when included, may be present in an amount ranging from about 0.1 to about 10%, preferably from about 0.1 to about 3% (by weight based on the total weight of the composition). Mixtures of any of the above described materials may also be used.
- a particulate premix composition may also comprise an effective amount of one or more enzyme selected from the group comprising, pectate lyase, protease, amylase, cellulase, lipase, mannanase and mixtures thereof.
- the enzymes are preferably present with corresponding enzyme stabilizers.
- a particulate premix composition may contain further optional ingredients to enhance performance and/or consumer acceptability.
- ingredients include dye transfer inhibitors (e.g. polyvinylpyrrolidone), foam control agents, preservatives (e.g. bactericides), anti-shrinking agents, anti-wrinkle agents, antioxidants, sunscreens, anti-corrosion agents, drape imparting agents, antistatic agents, ironing aids, colorants, fluorescers, pearlisers and/or opacifiers, and shading dye.
- dye transfer inhibitors e.g. polyvinylpyrrolidone
- foam control agents e.g. foam control agents
- preservatives e.g. bactericides
- anti-shrinking agents e.g. bactericides
- anti-wrinkle agents e.g. bactericides
- antioxidants e.g. bactericides
- sunscreens e.g. bactericides
- these optional ingredients are included individually at an amount of up to 5% (by weight based on the total weight of the composition).
- a composition of the invention may be packaged as unit doses in polymeric film soluble in the wash water.
- a composition of the invention may be supplied in multidose plastics packs with a top or bottom closure.
- a dosing measure may be supplied with the pack either as a part of the cap or as an integrated system.
- a method for forming a dishwash liguid composition by taking a powder premix as described herein and adding from 3 to 7 parts of water to one part of premix and mixing.
- the resulting dishwash liguid composition is stable and may be kept by the consumer until ready for use as a liguid detergent composition.
- the dilution step preferably provides a wash liguor which comprises inter alia from about 3 to about 20 g/wash of detersive surfactants (as are further defined above).
- the wash liguor preferably has a pH of from above 7 to less than 13, preferably from above 7 to less than 10.5.
- a packaged product comprising a powder premix as described above, in a container and wherein less than 30% of the available volume in the container is filled with premix.
- a dishwash liquid composition obtainable by adding water to a powder premix as claimed as described above.
- the following are premix powders for forming dishwash cleaning compositions on dilution in water.
- the table shows that lowering the level of non sulphate (i.e. sulphonate) surfactant versus sulphate surfactant improves the stability of the resulting liquid detergent when the premix is diluted with water.
- a composition (Formulation 14) has higher levels of traditional powder detergent surfactant and yet this is not suitable for diluting to form a liquid detergent which can be sued in a wash regime by a consumer. Measurement of Turbidity of liquid samples.
- the turbidity meter has automatic control system to read every fraction of second the sample’s turbidity and show it in display. Most frequent reading can be taken as representative value in case of fluctuation. After 30 s note down the turbidity values in NTU.
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Abstract
A powder premix for forming a stable liquid dishwash detergent composition when mixed with water, said premix comprising from 30-60% wt. of the premix a surfactant, and 18 to 60% wt. of the premix a water-soluble salt, wherein the surfactant comprises a sulphated surfactant, wherein the water-soluble salt and surfactant together comprise at least 70% wt. of the composition and wherein the weight ratio between the sulphated surfactant and the water-soluble salt is at least 0.5:1.
Description
COMPOSITION
The present invention relates to a powder premix for forming a dishwash liquid composition on dilution with water.
WO 97/39100 (P&G) discloses a process for making detergent agglomerates is provided in which a high active surfactant paste and a detergent builder are agglomerated together. The process entails maintaining the high active surfactant paste in a highly stable, pumpable and transportable form over an extended period of time. In this way, the process facilitates multi-locational, large-scale manufacture of modem compact detergent products. In particular, the high active surfactant paste can be manufactured in one facility, and thereafter, stored and transported to a remote facility for further processing into the finished detergent agglomerates.
Despite the prior art there remains a need for improved powder premix compositions. More importantly, there is a need for a powder premix which on dilution with water can form a stable liquid detergent composition. T raditional powder detergent compositions are not suitable for forming liquid detergent compositions on dilution with water since they merely form a wash liquor. Further, the surfactant chassis commonly used in powder detergent compositions, ones usually comprising a high level of linear alkyl benzene sulphonate (LAS) compared to other surfactants such as the alkyl ether sulphates do not form stable compositions but instead tend to form biphasic mixtures on dilution with small amounts of water, much lower than used in the wash process.
Dilutable products are highly desired by the environmentally conscious consumer since they can be purchased at source in a low volume and with limited secondary packaging. Once in the domestic environment they can be diluted in a ‘keeper1 container which permits dilution up to 10 or more times in water, i.e. one part powder to many parts water, to form a liquid composition. Thus, not only is a stable powder formulation desirable but the resulting dishwash liquid composition also has to be stable and to meet consumer expectations in physical aesthetics and performance.
Accordingly, and in a first aspect, there is provided a powder premix for forming a stable liquid dishwash detergent composition when mixed with water, said premix comprising from 30-60% wt. of the premix a surfactant, and 18 to 60% wt. of the premix a water-soluble salt, wherein the surfactant comprises a sulphated surfactant, wherein the water-soluble salt and surfactant together comprise at least 70% wt. of the composition and wherein the weight ratio between the sulphated surfactant and the water-soluble salt is at least 0.5: 1.
The term powder in the context of this invention denotes free-flowing or compacted solid forms.
Unless indicated otherwise all references to wt. % of any component is with reference to the premix particulate and not the diluted counterpart.
Preferably, the liquid detergent formed by diluting the powder premix in water is transparent. By transparent means that the composition when diluted 1 part premix in 3 parts water is less than 20 NTU.
One preferred form for the composition according to the invention is a free-flowing powdered solid, with a loose (unpackaged) bulk density generally ranging from about 200g/l to about 1 ,300 g/l, preferably from about 400 g/l to about 1 ,000 g/l, more preferably from about 500g/l to about 900 g/l.
Preferably, the powder premix comprises a non-sulphated surfactant in addition to the sulphated surfactant. Preferably, the weight ratio of sulphated to non-sulphated surfactant is from 1 : 1 to 100: 1 , more preferably from 1 .1 : 1 to 10: 1. Such weight ratios are determined with reference to the weight of the material added to the composition.
The particulate premix composition of the invention comprises from 30 to 60%, preferably from 30 to 55%, and more preferably from 35 to 50% (by weight based on the total weight of the premix composition) surfactant.
The term “surfactant’ in the context of particulate detergent formulations denotes a surfactant which provides a detersive (i.e. cleaning) effect to dishwash treated as part of a domestic laundering process.
More preferably, the powder premix comprises sulphated surfactant and non-sulphated surfactant, in a weight ratio of from 1 : 1 to 15: 1 (sulphated to non-sulphated surfactant) and especially preferably from 1 .5: 1 to 3: 1.
The powder premix comprises a water-soluble salt and the water soluble salt is preferably present in a total amount ranging from about 8 to about 60%, preferably from about 10 to 55% and most preferably from 25 to 50% (by weight based on the total weight of the premix composition).
Preferred water-soluble salts include sodium carbonate, potassium carbonate, sodium chloride, sodium sulphate, sodium bicarbonate, sodium citrate and mixtures thereof. The more preferred water-soluble salts are sodium chloride, sodium sulphate, sodium carbonate and sodium citrate. The most preferred is sodium carbonate.
The weight ratio between the water-soluble salt and the sulphated surfactant is at least 0.5 to 1 and preferably to 3:1 . Preferably, the weight ratio is from 1 .1 :1 to 1 .9:1 . Optimal weight ratios depend on the water-soluble salt used.
Preferably, the powder premix comprises water soluble salt, and non-sulphated surfactant in a weight ratio of from 2: 1 to 8: 1.
Preferably, the non-sulphated surfactant is selected from linear alkylbenzene sulphonate, non-ionic surfactants, methyl ester sulfonates (MES), alpha olefin sulphonate (AOS), sodium toluene sulfonate (STS), sodium cumene sulfonate (SOS), sodium xylene sulfonate (SXS) and mixtures thereof. The most preferred non-sulphate surfactants are LAS and non-ionic surfactants which may be used in mixtures.
A class of non-soap anionic surfactant for use in particulate premix compositions includes alkylbenzene sulfonates, particularly linear alkylbenzene sulfonates (LAS) with an alkyl chain length of from 10 to 18 carbon atoms. Commercial LAS is a mixture of closely related isomers and homologues alkyl chain homologues, each containing an aromatic ring sulfonated at the “para" position and attached to a linear alkyl chain at any position except the terminal carbons. The linear alkyl chain typically has a chain length of from 11 to 15 carbon atoms, with the predominant materials having a chain length of about C12. Each alkyl chain homologue consists of a mixture of all the possible sulfophenyl isomers except for the 1 -phenyl isomer. LAS is normally formulated into compositions in acid (i.e. HLAS) form and then at least partially neutralized in-situ.
Nonionic surfactants for use in particulate premix compositions are typically polyoxyalkylene compounds, i.e. the reaction product of alkylene oxides (such as ethylene oxide or propylene oxide or mixtures thereof) with starter molecules having a hydrophobic group and a reactive hydrogen atom which is reactive with the alkylene oxide. Such starter molecules include alcohols, acids, amides or alkyl phenols. Where the starter molecule is an alcohol, the reaction product is known as an alcohol alkoxylate. The polyoxyalkylene compounds can have a variety of block and heteric (random) structures. For example, they can comprise a single block of alkylene oxide, or they can be diblock alkoxylates or triblock alkoxylates. Within the block structures, the blocks can be all ethylene oxide or all propylene oxide, or the blocks can contain a heteric mixture of alkylene oxides. Examples of such materials include Cs to C22 alkyl phenol ethoxylates with an average of from 5 to 25 moles of ethylene oxide per mole of alkyl phenol; and aliphatic alcohol ethoxylates such as Cs to Cis primary or secondary linear or branched alcohol ethoxylates with an average of from 2 to 40 moles of ethylene oxide per mole of alcohol.
A preferred class of nonionic surfactant for use in particulate premix compositions includes aliphatic Cs to Cis, more preferably C12 to C15 primary linear alcohol ethoxylates with an average of from 3 to 20, more preferably from 5 to 10 moles of ethylene oxide per mole of alcohol.
Mixtures of any of the above described materials may also be used.
In particulate compositions the total level of non-ionic surfactant may suitably range from 1 to 10% (by weight based on the total weight of the composition).
Preferably, the powder premix comprises 0 to 30% non-sulphated surfactant by wt. of the premix. By non-sulphated preferably means sulphonated.
Preferably, the sulphated surfactant is selected from ethoxylated alkyl sulphates, primary alcohol sulphates and mixtures thereof.
Non-soap anionic surfactants for use in particulate premix compositions are typically salts of organic sulfates and sulfonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term “alkyl” being used to include the alkyl portion of higher acyl radicals. Examples of such materials include alkyl sulfates, alkyl ether sulfates, alkaryl sulfonates, alpha-olefin sulfonates and mixtures thereof. The alkyl radicals preferably contain from 10 to 18 carbon atoms and may be unsaturated. The alkyl ether sulfates may contain from one to ten ethylene oxide or propylene oxide units per molecule, and preferably contain one to three ethylene oxide units per molecule. The counterion for anionic surfactants is generally an alkali metal such as sodium or potassium; or an ammoniacal counterion such as monoethanolamine, (MEA) diethanolamine (DEA) or triethanolamine (TEA). Mixtures of such counterions may also be employed.
Preferably, the powder premix comprises from 30 to 60% sulphated surfactant.
Preferably, the powder premix comprises from 8 to 60% wt. water-soluble salt. More preferably, the premix composition comprises at least 10% water-soluble salt, more preferably at least 35%, especially preferably at least 40% wt. water-soluble salt.
Preferably the weight ratio between the water-soluble salt and the total surfactant is from 0.1 : 1 to 2: 1 and more preferably, 0.9:1 to 1.7:1.
Preferably the weight ratio between the water-soluble salt and the total non-sulphated surfactant (more preferably, the sulphonated surfactant) level is from 0.1 : 1 to 5: 1 , more preferably from 2: 1 to 4.5:1 and especially preferably from 2.5:1 to 4:1.
Preferably, the weight ratio between the water-soluble salt and, where present, the total ethoxylated sulphated surfactant level is from 0.01 : 1 to 2.5: 1.
Builders are principally used to reduce water hardness. This is done either by sequestration or chelation (holding hardness minerals in solution), by precipitation (forming an insoluble substance), or by ion exchange (trading electrically charged particles). Builders can also supply and maintain alkalinity, which assists cleaning, especially of acid soils; help keep removed soil from redepositing during washing; and emulsify oily and greasy soils.
Builders for use in particulate premix compositions can be of the organic or inorganic type, or a mixture thereof. Non-phosphate builders are preferred. However, we have found that builder types have a deleterious effect on dilution performance and in particular on the stability of the diluted premix.
Inorganic, non-phosphate builders for use in particulate premix compositions include carbonates, silicates, zeolites, and mixtures thereof however, carbonate builders are strongly preferred.
More preferably, the water-soluble salt is a carbonate builder. Suitable carbonate builders for use in particulate premix compositions include mixed or separate, anhydrous or partially hydrated alkali metal carbonates, bicarbonates or sesquicarbonates. Preferably the alkali metal is sodium and/or potassium, with sodium carbonate being particularly preferred.
Less suitable silicate builders include amorphous forms and/or crystalline forms of alkali metal (such as sodium) silicates such as crystalline layered sodium silicates (phyllosilicates) of the general formula (I)
NaMSixO2x+i.yH2O (I) in which M is sodium or hydrogen, x is a number from 1.9 to 4, preferably 2 or 3 and y is a number from 0 to 20. Such materials can be prepared with different crystal structures, referred to as a, p, y and 5 phases, with 6-sodium disilicate being noteworthy.
Zeolites are naturally occurring or synthetic crystalline aluminosilicates composed of (SiC ) and (AIC )5- tetrahedra, which share oxygen-bridging vertices and form cage-like structures in crystalline form. The ratio between oxygen, aluminium and silicon is O:(AI + Si) = 2:1. The frameworks acquire their negative charge by substitution of some Si by Al. The negative charge is neutralised by cations and the frameworks are sufficiently open to contain, under normal conditions, mobile water molecules. Suitable zeolite builders for use in the invention may be defined by the general formula (II):
Nax[(AIO2)x(SiO2)y] zH2O (II) in which x and y are integers of at least 6, the molar ratio of x to y is in the range from about 1 to about 0.5, and z is an integer of at least 5, preferably from about 7.5 to about 276, more preferably from about 10 to about 264.
Suitable organic, non-phosphate builders for use in particulate premix compositions include polycarboxylates, in acid and/or salt form. When utilized in salt form, alkali metal (e.g. sodium and potassium) or alkanolammonium salts are preferred. Specific examples of such materials include sodium and potassium citrates, sodium and potassium tartrates, the sodium and potassium salts of tartaric acid monosuccinate, the sodium and potassium salts of tartaric acid disuccinate, sodium and potassium ethylenediaminetetraacetates, sodium and potassium N(2-hydroxyethyl)- ethylenediamine triacetates, sodium and potassium nitrilotriacetates and sodium and potassium N- (2-hydroxyethyl)-nitrilodiacetates. Polymeric polycarboxylates may also be used, such as polymers of unsaturated monocarboxylic acids (e.g. acrylic, methacrylic, vinylacetic, and crotonic acids) and/or unsaturated dicarboxylic acids (e.g. maleic, fumaric, itaconic, mesaconic and citraconic acids and their anhydrides). Specific examples of such materials include polyacrylic acid, polymaleic acid, and copolymers of acrylic and maleic acid. The polymers may be in acid, salt or partially neutralised form and may suitably have a molecular weight (Mw) ranging from about 1 ,000 to 100,000, preferably from about 2,000 to about 85,000, and more preferably from about 2,500 to about 75,000.
Mixtures of any of the above described materials may also be used. Preferred builders for use in particulate premix compositions may be selected from zeolites (of the general formula (II) defined above), sodium carbonate, b-sodium disilicate and mixtures thereof.
Preferably the level of phosphate builders in a particulate premix composition is less than 1% (by weight based on the total weight of the composition). The term “phosphate builder” denotes alkali
metal, ammonium and alkanolammonium salts of polyphosphate, orthophosphate, and/or metaphosphate (e.g. sodium tri polyphosphate).
Preferably, the composition comprises from 0 to 5% wt of the premix non-carbonate builder such as zeolite, silicate and polycarboxylates. More preferably, the composition comprises from 0 to 1 , most preferably from 0 to 0.1% wt. builder selected from zeolite, polycarboxylate and silicate.
A particulate composition may also include one or more fillers to assist in providing the desired density and bulk to the composition. Suitable fillers for use in the invention may generally be selected from neutral salts with a solubility in water of at least 1 gram per 100 grams of water at 20° C; such as alkali metal, alkaline earth metal, ammonium or substituted ammonium chlorides, fluorides, acetates and sulfates and mixtures thereof. Preferred fillers for use in the invention include alkali metal (more preferably sodium and/or potassium) sulfates and chlorides and mixtures thereof, with sodium sulfate and/or sodium chloride being most preferred.
Filler, when included, may be present in a total amount ranging from 0 to about 1%, preferably from about 0 to about 0.50% (by weight based on the total weight of the premix composition).
Magnesium sulphate is desirably included from 0.5 to 5 wt. percent in order to ensure the desired rheological properties are achieved.
Foam Boosters
Preferably, the composition comprises a foam booster.
The foam booster is included to improve foaming performance in the final detergent wash liquor but without also boosting the foaming during dilution to an extent where the dilution of the premix by the consumer in the domestic environment is impacted.
For example, a foam booster which dramatically increases the foaming when the consumer mixes with water may cause too much foam to be generated thus preventing adequate mixing by the consumer or even that less water than desired is added to the premix. It also reduces the chances of the right amount of water to be added to the premix.
However, a foam suppressor would consequently cause foaming in the end wash liquor to be impacted.
Thus finding an appropriate foam booster which reduces the amount of surfactant required to deliver foaming during use, and yet does not prohibit the dilution step is highly desirable. Preferably, the foam booster is selected from alkyl ether carboxylic acids such as alcohol polyalkylene glycol ether acetic acid, alkali-metal alkyl isethionates such as sodium cocoyl isethionate, alkali-metal inulin derivatives such as sodium carboxymethyl inulin (with a degree of substitution of from 1 to 5, more preferably from 2 to 2.5), monoisopropyl amine alkyl benzene sulphonate, cocomonoethanolamide, betaines such as cocamidopropyl betaine, sodium alkyl benzene sulphonate, C12-14 alkyl (hydroxyethyl)dimethyl quaternary ammonium chlorides, polyethylene glycol, methyl, 2-propenyloxy terminated, poly(oxy-1,2-ethanediyl), sulfo-[(2- propylheptyl)oxy]-, sodium salt, hydroxyethylidene diphosphonic acid, maleic acid-acrylic acid copolymer sodium salt and mixtures thereof.
The most preferred foam boosters are cocamidopropyl betaine, sodium carboxymethyl inulin (degree of substitution =2), polyethylene glycol, methyl, 2-propenyloxy terminated, poly(oxy-1 ,2- ethanediyl), sulfo-[(2-propylheptyl)oxy]-, sodium salt and mixtures thereof.
Preferably, the foam booster is present at a sufficient level to provide from 0.1 to 0.5% wt. ion the diluted mix.
Optional Components
A particulate premix composition may also contain one or more cosurfactants (such as amphoteric (zwitterionic) and/or cationic surfactants) in addition to the non-soap anionic and/or nonionic detersive surfactants described above.
Specific cationic surfactants include Cs to Cis alkyl dimethyl ammonium halides and derivatives thereof in which one or two hydroxyethyl groups replace one or two of the methyl groups, and mixtures thereof. Cationic surfactant, when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the premix composition).
Specific amphoteric (zwitterionic) surfactants include alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulphobetaines (sultaines), alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkylamphoglycinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates, having alkyl radicals containing from about 8 to about 22 carbon atoms, the term “alkyl” being used to include the alkyl portion of higher acyl radicals. Amphoteric (zwitterionic) surfactant, when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the premix composition).
A premix composition of the invention may contain one or more fatty acids and/ or salts thereof.
Suitable fatty acids in the context of this invention include aliphatic carboxylic acids of formula RCOOH, where R is a linear or branched alkyl or alkenyl chain containing from 6 to 24, more preferably 10 to 22, most preferably from 12 to 18 carbon atoms and 0 or 1 double bond. Preferred examples of such materials include saturated C12-18 fatty acids such as lauric acid, myristic acid, palmitic acid or stearic acid; and fatty acid mixtures in which 50 to 100% (by weight based on the total weight of the mixture) consists of saturated C12-18 fatty acids. Such mixtures may typically be derived from natural fats and/or optionally hydrogenated natural oils (such as coconut oil, palm kernel oil or tallow).
The fatty acids may be present in the form of their sodium, potassium or ammonium salts and/or in the form of soluble salts of organic bases, such as mono-, di- or triethanolamine.
Mixtures of any of the above described materials may also be used.
Fatty acids and/or their salts, when included, may be present in an amount ranging from about 0.25 to 5%, more preferably from 0.5 to 5%, most preferably from 0.75 to 4% (by weight based on the total weight of the premix composition).
For formula accounting purposes, in the formulation, fatty acids and/or their salts (as defined above) are not included in the level of surfactant or in the level of builder.
A particulate premix composition may also contain one or more chelating agents for transition metal ions. Such chelating agents may also have calcium and magnesium chelation capacity, but preferentially bind heavy metal ions such as iron, manganese and copper. Such chelating agents may help to improve the stability of the composition and protect for example against transition metal catalyzed decomposition of certain ingredients.
Suitable transition metal ion chelating agents include phosphonates, in acid and/or salt form. When utilized in salt form, alkali metal (e.g. sodium and potassium) or alkanolammonium salts are preferred. Specific examples of such materials include aminotris(methylene phosphonic acid) (ATMP), 1-hydroxyethylidene diphosphonic acid (HEDP) and diethylenetriamine penta(methylene phosphonic acid (DTPMP) and their respective sodium or potassium salts. HEDP is preferred. Mixtures of any of the above described materials may also be used.
Transition metal ion chelating agents, when included, may be present in an amount ranging from about 0.1 to about 10%, preferably from about 0.1 to about 3% (by weight based on the total weight of the composition). Mixtures of any of the above described materials may also be used.
A particulate premix composition may also comprise an effective amount of one or more enzyme selected from the group comprising, pectate lyase, protease, amylase, cellulase, lipase, mannanase and mixtures thereof. The enzymes are preferably present with corresponding enzyme stabilizers.
A particulate premix composition may contain further optional ingredients to enhance performance and/or consumer acceptability. Examples of such ingredients include dye transfer inhibitors (e.g. polyvinylpyrrolidone), foam control agents, preservatives (e.g. bactericides), anti-shrinking agents, anti-wrinkle agents, antioxidants, sunscreens, anti-corrosion agents, drape imparting agents, antistatic agents, ironing aids, colorants, fluorescers, pearlisers and/or opacifiers, and shading dye. Each of these ingredients will be present in an amount effective to accomplish its purpose.
Generally, these optional ingredients are included individually at an amount of up to 5% (by weight based on the total weight of the composition).
Packaging and dosing
A composition of the invention may be packaged as unit doses in polymeric film soluble in the wash water. Alternatively, a composition of the invention may be supplied in multidose plastics packs with a top or bottom closure. A dosing measure may be supplied with the pack either as a part of the cap or as an integrated system.
In a second aspect there is provided a method for forming a dishwash liguid composition by taking a powder premix as described herein and adding from 3 to 7 parts of water to one part of premix and mixing. The resulting dishwash liguid composition is stable and may be kept by the consumer until ready for use as a liguid detergent composition.
The dilution step preferably provides a wash liguor which comprises inter alia from about 3 to about 20 g/wash of detersive surfactants (as are further defined above). The wash liguor preferably has a pH of from above 7 to less than 13, preferably from above 7 to less than 10.5.
In a third aspect there is provided a packaged product comprising a powder premix as described above, in a container and wherein less than 30% of the available volume in the container is filled with premix.
In a fourth aspect there is provided a dishwash liquid composition obtainable by adding water to a powder premix as claimed as described above.
EXAMPLES
EXAMPLE 1
The table shows that lowering the level of non sulphate (i.e. sulphonate) surfactant versus sulphate surfactant improves the stability of the resulting liquid detergent when the premix is diluted with water. A composition (Formulation 14) has higher levels of traditional powder detergent surfactant and yet this is not suitable for diluting to form a liquid detergent which can be sued in a wash regime by a consumer.
Measurement of Turbidity of liquid samples.
1 ) Calibrate the turbidity meter with standard suspensions for various turbidity such as 0.02,
1,10, 50 & 1000NTU.
2) Fill the liquid detergent sample in the standard vial of turbidity meter more than 2/3 of volume & close the lid of the vial.
3) Place the sample vial in the turbidity meter (for example TURBIQUANT™ 1100 from sigma). Close the cover lid of the turbidity meter.
4) The turbidity meter has automatic control system to read every fraction of second the sample’s turbidity and show it in display. Most frequent reading can be taken as representative value in case of fluctuation. After 30 s note down the turbidity values in NTU.
5) Repeat the step 4 twice to get mean turbidity values of sample.
Claims
1 . A powder premix for forming a stable liquid dishwash detergent composition when mixed with water, said premix comprising from 30-60% wt. of the premix a surfactant, and 18 to 60% wt. of the premix a water-soluble salt, wherein the surfactant comprises a sulphated surfactant, wherein the water-soluble salt and surfactant together comprise at least 70% wt. of the composition and wherein the weight ratio between the sulphated surfactant and the water- soluble salt is at least 0.5: 1.
2. A powder premix according to claim 1 comprising non-sulphated surfactant, and wherein the weight ratio of sulphated to non-sulphated surfactant is from 1 : 1 to 100: 1.
3. A powder premix according to claim 2 wherein the non-sulphated surfactant is selected from linear alkylbenzene sulphonate, non-ionic surfactant and mixtures thereof.
4. A powder premix according to any of claims 1 to 3 wherein the sulphated surfactant is selected from ethoxylated alkyl sulphates, primary alcohol sulphates and mixtures thereof.
5. A powder premix according to any preceding claim comprising from 30 to 60% sulphated surfactant.
6. A powder premix as claimed in any preceding claim comprising 0 to 30% non-sulphated surfactant by wt. of the premix.
7. A powder premix according to any preceding claim comprising from 0 to 1 % wt. inorganic filler.
8. A packaged product comprising a powder premix as claimed in any of claims 1 to 7, in a container and wherein less than 30% of the available volume in the container is filled with premix.
9. A method for forming a dishwash liquid composition by taking a powder premix as claimed in any of claims 1 to 7 and adding from 3 to 7 parts water to 1 part premix and mixing.
10. A dishwash liquid composition obtainable by adding water to a powder premix as claimed in any of claims 1 to 7.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997039100A1 (en) | 1996-04-17 | 1997-10-23 | The Procter & Gamble Company | High density detergent-making process using a high active surfactant paste having improved stability |
WO1998016623A1 (en) * | 1996-10-15 | 1998-04-23 | The Procter & Gamble Company | A kit for predissolving detergent compositions |
US20180355286A1 (en) * | 2015-08-21 | 2018-12-13 | Ecolab Usa Inc. | Pyrithione preservative system in solid rinse aid products |
-
2021
- 2021-10-08 WO PCT/EP2021/077950 patent/WO2022078916A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997039100A1 (en) | 1996-04-17 | 1997-10-23 | The Procter & Gamble Company | High density detergent-making process using a high active surfactant paste having improved stability |
WO1998016623A1 (en) * | 1996-10-15 | 1998-04-23 | The Procter & Gamble Company | A kit for predissolving detergent compositions |
US20180355286A1 (en) * | 2015-08-21 | 2018-12-13 | Ecolab Usa Inc. | Pyrithione preservative system in solid rinse aid products |
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