CN117384712A - Weak acid alcohol-free solvent type concentrated detergent capable of maintaining high viscosity through high-power dilution and preparation method thereof - Google Patents
Weak acid alcohol-free solvent type concentrated detergent capable of maintaining high viscosity through high-power dilution and preparation method thereof Download PDFInfo
- Publication number
- CN117384712A CN117384712A CN202311254301.2A CN202311254301A CN117384712A CN 117384712 A CN117384712 A CN 117384712A CN 202311254301 A CN202311254301 A CN 202311254301A CN 117384712 A CN117384712 A CN 117384712A
- Authority
- CN
- China
- Prior art keywords
- fatty acid
- concentrated detergent
- polyethylene glycol
- alcohol
- nonionic surfactant
- 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.)
- Pending
Links
- 239000003599 detergent Substances 0.000 title claims abstract description 65
- 239000012895 dilution Substances 0.000 title claims abstract description 38
- 239000002904 solvent Substances 0.000 title claims abstract description 35
- 239000002253 acid Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000003113 dilution method Methods 0.000 title description 2
- 239000000194 fatty acid Substances 0.000 claims abstract description 87
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 50
- 229930195729 fatty acid Natural products 0.000 claims abstract description 50
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 48
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 46
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 46
- 229920000570 polyether Polymers 0.000 claims abstract description 40
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 39
- 238000010790 dilution Methods 0.000 claims abstract description 36
- 239000004519 grease Substances 0.000 claims abstract description 36
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 36
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003513 alkali Substances 0.000 claims abstract description 9
- 239000013543 active substance Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 150000002191 fatty alcohols Chemical class 0.000 claims description 6
- 150000007529 inorganic bases Chemical class 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000005886 esterification reaction Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- 241001465754 Metazoa Species 0.000 claims description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 3
- 238000007046 ethoxylation reaction Methods 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000006277 sulfonation reaction Methods 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 235000013311 vegetables Nutrition 0.000 claims description 2
- 230000008719 thickening Effects 0.000 abstract description 23
- 150000003839 salts Chemical class 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 12
- 239000002562 thickening agent Substances 0.000 abstract description 10
- 239000003381 stabilizer Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000004094 surface-active agent Substances 0.000 description 22
- 235000002639 sodium chloride Nutrition 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 230000032683 aging Effects 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 150000001412 amines Chemical class 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 6
- -1 hydroxyalkyl methyl cellulose ether Chemical compound 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 5
- 239000000693 micelle Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 235000019198 oils Nutrition 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- 239000002671 adjuvant Substances 0.000 description 4
- 239000003240 coconut oil Substances 0.000 description 4
- 235000019864 coconut oil Nutrition 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 4
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003346 palm kernel oil Substances 0.000 description 4
- 235000019865 palm kernel oil Nutrition 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 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 3
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 description 3
- 239000005456 alcohol based solvent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 229930182470 glycoside Natural products 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 150000004668 long chain fatty acids Chemical group 0.000 description 3
- 239000002932 luster Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- JLFNLZLINWHATN-UHFFFAOYSA-N pentaethylene glycol Chemical compound OCCOCCOCCOCCOCCO JLFNLZLINWHATN-UHFFFAOYSA-N 0.000 description 3
- 229940093429 polyethylene glycol 6000 Drugs 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000005639 Lauric acid Substances 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000008118 PEG 6000 Substances 0.000 description 2
- 235000019482 Palm oil Nutrition 0.000 description 2
- 235000021314 Palmitic acid Nutrition 0.000 description 2
- 235000019483 Peanut oil Nutrition 0.000 description 2
- 229920002538 Polyethylene Glycol 20000 Polymers 0.000 description 2
- 229920002584 Polyethylene Glycol 6000 Polymers 0.000 description 2
- 229920002593 Polyethylene Glycol 800 Polymers 0.000 description 2
- 229920001213 Polysorbate 20 Polymers 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000012612 commercial material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- 229940079919 digestives enzyme preparation Drugs 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 2
- 239000000834 fixative Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- 239000002540 palm oil Substances 0.000 description 2
- 239000000312 peanut oil Substances 0.000 description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 description 2
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 2
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 150000003871 sulfonates Chemical class 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241000948223 Octomys Species 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012468 concentrated sample Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012470 diluted sample Substances 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229940045944 sodium lauroyl glutamate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- IWIUXJGIDSGWDN-UQKRIMTDSA-M sodium;(2s)-2-(dodecanoylamino)pentanedioate;hydron Chemical compound [Na+].CCCCCCCCCCCC(=O)N[C@H](C([O-])=O)CCC(O)=O IWIUXJGIDSGWDN-UQKRIMTDSA-M 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil 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
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
- C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
-
- 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
- C11D3/044—Hydroxides or bases
-
- 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
- C11D3/08—Silicates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/349—Organic compounds containing sulfur additionally containing nitrogen atoms, e.g. nitro, nitroso, amino, imino, nitrilo, nitrile groups containing compounds or their derivatives or thio urea
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3707—Polyethers, e.g. polyalkyleneoxides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38618—Protease or amylase in liquid compositions only
-
- 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
- C11D3/50—Perfumes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention relates to the field of detergents, and discloses a weak acid alcohol-free solvent type concentrated detergent capable of maintaining high viscosity through high-power dilution and a preparation method thereof, wherein the pH value of the concentrated detergent is=5.0-7.0, and the concentrated detergent comprises 40-70wt% of active substances and the balance of water; the active substance comprises: 15-40% of modified grease ethoxylate sulfonate, 15-40% of polyether nonionic surfactant, 2-5% of fatty acid, 2-8% of polyethylene glycol di-fatty acid ester and 0.1-6% of inorganic alkali neutralizer. The invention uses modified grease ethoxylate sulfonate to compound polyether nonionic surfactant, can realize high-power concentration in alcohol-free solvent, and does not need to add solubilizer or stabilizer. In order to avoid the introduction of a large amount of inorganic salts, the invention introduces polyethylene glycol di-fatty acid ester and proper amount of fatty acid as thickening agents, and has good thickening effect in a high-water-content weak acid system, so that higher viscosity can be maintained after high-power dilution.
Description
Technical Field
The invention relates to the field of detergents, in particular to a weak acid alcohol-free solvent type concentrated detergent capable of maintaining high viscosity through high-power dilution and a preparation method thereof.
Background
In recent years, concentrated primary pulp type concentrated detergent products are appeared in domestic markets, and are high-power concentrated detergent systems, so that consumers need to dilute the concentrated primary pulp type concentrated detergent products by a certain multiple after buying the concentrated primary pulp type concentrated detergent products, and the concentrated primary pulp type concentrated detergent products reach the concentration of common laundry detergent. Under the design, the consumer can not only normally use the concentrated product according to the dosage of the common laundry detergent, but also intuitively feel the concentration characteristic of the product, and simultaneously, the advantage of the concentration and environmental protection of the product is fully utilized. Therefore, the concentrated product applying the technology has a great market application prospect.
However, the "high-power concentration" or "pre-slurry" of detergents has a high technical difficulty. For example, common surfactants such as AES, AEO 9 Raw materials such asWith a certain gel area, the traditional concentrated detergents have a greater limit on the choice of raw materials. For another example, conventional surfactant materials are difficult to achieve high-power concentration due to solubility limitations, and the concentrated formulations are storage stable by requiring the use of alcohols such as propylene glycol, glycerol, and the like as alcohol solubilizing agents. However, the use of alcohols also significantly reduces the apparent viscosity of the product (prior to dilution), making it somewhat impossible for consumers to subjectively and practically perceive the product's concentrating characteristics.
In the prior art, dilute thickening of concentrated detergent products is achievable. In the patent CN115368978A, the compatibility of an alkanolamide surfactant and a salt is adopted, and the maximum 6 times of dilution and thickening of a concentrated sample can be realized under the combined action of a certain amount of alcohol solvents and an organic amine neutralizer; as disclosed in patent CN107922547a, a detergent composition consisting of hydroxyalkyl methyl cellulose ether, acrylic acid (fatty acid) ester polymer and surfactant, is capable of retaining a higher viscosity after dilution by 2-fold or 3-fold; as also disclosed in patent CN 101563443a, a dishwashing detergent product with about 30% of active matter formed by AES, sulfonic acid, betaine surfactant has a dilution thickening property without viscosity drop and reverse rise after 2-fold dilution; in addition, as disclosed in patent CN107446711A, a highly concentrated detergent containing 20-35% of comb polyether and 1.5-6.0% of sodium chloride is prepared by mixing comb polyether polymer with specific structure and sodium chloride with conventional surfactants such as alkylbenzenesulfonic acid, FMEE, AOS, isomeric alcohol ether and the like, and the prepared highly concentrated detergent still has higher viscosity after 4 times dilution.
Careful analysis of the prior published patent shows that 2-3 fold concentrates are more common and higher fold, e.g. 4 fold, 5 fold concentrates are substantially more difficult to achieve. In higher concentrated systems, it is generally necessary to achieve a viscosity maintenance after high dilution by means of an alcoholic solubilizer and a certain amount of inorganic salts. For example, both CN115368978A and CN107446711a use alcohol solvents such as propylene glycol as co-solvents, and also use a certain amount of inorganic salts to achieve an increase in viscosity after dilution. As described above, the use of alcohol solvents significantly reduces the apparent viscosity of the concentrated detergent prior to dilution, making it somewhat impossible for the consumer to subjectively and practically perceive the concentrated nature of the product; however, inorganic salts have different effects on different systems, and at low water content, inorganic salts have limited solubility, sometimes causing the concentrated system to gel or delaminate, reducing stability. In addition, in the CN115368978A, organic amine is used as a solubilizer or stabilizer of the surfactant, and the use of organic amine can make the product easily undergo yellowing due to aging at high temperature or after illumination.
In addition, in the prior art, modified oil ethoxylate sulfonates have been widely recommended for use in concentrated detergent systems such as gel beads which do not require viscosity adjustment due to their water-miscible and viscosity-reducing properties. As disclosed in patent CN111139144a, a low-temperature easy-rinsing super-concentrated liquid detergent and a preparation method thereof are disclosed, which utilize the characteristics of good solubility, viscosity reduction and easy rinsing of modified grease ethoxylate sulfonate (SNS-80); and as in patent CN110331049A, SNS-80 is compounded with viscous alkyl glycoside, so that the raw material has good low-temperature fluidity and is convenient for production operation; further, as disclosed in patent CN109181894a, a super concentrated detergent containing a fatty ethoxylate sulfonate has strong detergency, low viscosity, and excellent high and low temperature fluidity.
However, the viscosity of the concentrated system containing the modified oil ethoxylate sulfonate is greatly reduced after dilution due to the viscosity reduction property of the modified oil ethoxylate sulfonate, so that the prior art of applying the modified oil ethoxylate sulfonate as a main raw material to a diluted and thickened concentrated raw stock product is not seen at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides a weak acid alcohol-free solvent type concentrated detergent which can maintain high viscosity by high-power dilution and a preparation method thereof. On one hand, the modified grease ethoxylate sulfonate is used as a main surface active agent to compound the polyether nonionic surfactant, high-power concentration can be realized under the condition of no alcohol solvent, and solubilizers such as organic amine or stabilizers are not needed to be added, so that the concentrated detergent has good color and luster, and the yellowing of the product after high-temperature aging or illumination aging is slight. On the other hand, in order to avoid the introduction of a large amount of inorganic salts, the invention introduces polyethylene glycol di-fatty acid ester and a proper amount of fatty acid as thickening agents into the system, and the polyethylene glycol di-fatty acid ester and the proper amount of fatty acid have good thickening effect on modified grease ethoxylate sulfonate in a high-water-content weak acid system. Therefore, the concentrated detergent of the invention can still maintain higher viscosity after high-power dilution.
The specific technical scheme of the invention is as follows:
in a first aspect, the present invention provides a weak acid alcohol-free solvent-type concentrated detergent which is highly diluted to maintain high viscosity, and has a ph=5.0 to 7.0, comprising 40 to 70wt% of active and the balance of solvent water.
The active substances comprise the following raw materials in percentage by mass based on the total amount of the weak acid alcohol-free solvent type concentrated detergent: 15-40% of modified grease ethoxylate sulfonate, 15-40% of polyether nonionic surfactant, 2-5% of fatty acid, 2-8% of polyethylene glycol di-fatty acid ester, 0.1-6% of inorganic alkali neutralizer and 0-15% of other auxiliary agents.
Different from the traditional dilution thickening type concentrated detergent system, the invention utilizes the gel-free area and viscosity reduction property of the modified grease ethoxylate sulfonate, and uses the modified grease ethoxylate sulfonate as a main surface active agent to be matched with a certain amount of polyether nonionic surfactant, so that the whole formula can realize high-power concentration under the condition of no alcohol solvent; meanwhile, the invention does not need to use organic amine and the like as solubilizer or stabilizer of the surfactant in the concentrated system, so that the concentrated detergent has better color and luster, and the yellowing of the product after high-temperature aging or illumination aging is slight.
Further, in order to overcome the defect of low viscosity of a concentrated system containing modified grease ethoxylate sulfonate after dilution and achieve the aim of keeping higher viscosity of a concentrated detergent after high-power dilution, the invention introduces polyethylene glycol di-fatty acid ester as a thickener into the system. The present invention has found that the thickening ability of the conventional thickener, polyethylene glycol di-fatty acid ester, is very specific in the specific system of the present invention. Its thickening efficiency seems to be related to the water content in the system. In a high-concentration low-water system (before dilution), the thickening efficiency is poor, and the thickening efficiency is shown to be dissolved in a surfactant concentration system; in a weak acid system (after dilution) with high water content, the sample can quickly respond to fatty acid in the system, and the diluted sample can have high viscosity without relying on conventional electrolytes such as sodium chloride and the like. That is, we have found that polyethylene glycol di-fatty acid esters are capable of thickening modified grease ethoxylate sulfonates that are difficult to thicken with conventional thickeners only when combined with small amounts of fatty acids in highly aqueous weak acid systems; thus, the concentrated detergents of the invention can maintain a high viscosity after dilution. Simultaneously, the invention also discovers that the polyethylene glycol di-fatty acid ester can be largely dissolved in the polyether nonionic surfactant with high content, and the thickening efficiency is lower under a low-water concentration system, so that the addition amount of the polyethylene glycol di-fatty acid ester can be increased in the concentration system, and the thickening agent cannot be applied to the concentration system under normal conditions.
In order to further improve the thickening effect of the concentrated system after dilution, fatty acid is introduced into the system, because a small amount of fatty acid has the effect of improving the thickening efficiency of polyethylene glycol di-fatty acid ester in a macroscopic manner under the weak acid condition. The mechanism is as follows: polyethylene glycol di-fatty acid esters are a class of amphiphilic molecules in which the polyether structure is hydrophilic and the long chain fatty acid structure is hydrophobic. Simultaneously, the hydroxyl groups at two ends of the polyethylene glycol can be subjected to esterification end capping, so that the polyethylene glycol has a double-chain structure. The unique structural characteristics of the polyethylene glycol di-fatty acid ester enable the polyethylene glycol di-fatty acid ester to participate in the self-assembly of micelle small molecules in a solution phase to form mixed micelles, and simultaneously facilitate the double-chain structure of the polyethylene glycol di-fatty acid ester, so that the polyethylene glycol di-fatty acid ester can anchor two micelle molecules simultaneously. This increases the aggregate length dimension to a degree that macroscopic overall viscosity rise can be achieved by numerous cross-stacking between two micelles. While we have found that small amounts of fatty acids under weakly acidic conditions can further promote the formation of the above aggregates. In the invention, by means of the solubilization of the polyether nonionic surfactant and the modified grease ethoxylate sulfonate in the system, a small amount of fatty acid can be solubilized in the polyether fence layer of the micelle (usually, the fatty acid exists in a protonated form in a weak acidic system and is difficult to dissolve), and the thickening promotion function is realized in the system. Thus, in the present invention, the polyethylene glycol di-fatty acid ester and the fatty acid have pH dependency on the thickening effect of the system, and have the thickening effect only at a slightly acidic pH. Thus, the concentrate system of the present invention does not require the aid of conventional inorganic salts such as sodium chloride, sodium sulfate, potassium chloride, etc. to aid in thickening, but rather relies on small amounts of fatty acids in the system. Under weak acid environment, the selection of fatty acid has an important effect on the viscosity of the system.
Preferably, the weak acid alcohol-free solvent type concentrated detergent has a ph=5.0-6.5 and comprises 40-70 wt% of active and the balance of solvent water.
The active substances comprise the following raw materials in percentage by mass based on the total amount of the weak acid alcohol-free solvent type concentrated detergent: 20 to 40 percent of modified grease ethoxylate sulfonate, 15 to 30 percent of polyether nonionic surfactant, 2 to 4 percent of fatty acid, 2 to 6 percent of polyethylene glycol double fatty acid ester, 0.1 to 3 percent of inorganic alkali neutralizer and 0 to 15 percent of other auxiliary agents.
Preferably, the mass ratio of the polyether nonionic surfactant to the polyethylene glycol di-fatty acid ester is more than 5:1; the concentrated detergent has increased or maintained viscosity substantially unchanged when diluted 3-5 times.
Preferably, the modified oil ethoxylate sulfonate is obtained by ethoxylation and sulfonation of natural animal and vegetable oils such as palm kernel oil, coconut oil, palm oil and peanut oil, and the commercial industrial raw materials include, but are not limited to, SNS-80 of medium and light daily chemicals, OXOS-1 of Liaoning Ok chemistry and the like.
Further preferably, the chemical structure of the modified grease ethoxylate sulfonate is:
wherein a+b+c=1 to 30, and r is a long-chain aliphatic alkyl group having 8 to 22 carbon atoms.
Preferably, the polyether nonionic surfactant is formed by polymerizing natural fatty alcohol or isomeric fatty alcohol or natural polyol with ethylene oxide or propylene oxide; common among others are AEO 9 、IEO 9 IsomerismAEO 7 Tween 20, etc., natural alcohol polyoxyethylene ether is preferred depending on the cost of the raw materials.
Further preferably, the HLB value of the polyether nonionic surfactant is in the range of 12 to 18.
Preferably, the fatty acid is a natural fatty acid or a mixed fatty acid of natural origin; the natural fatty acid is selected from lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, etc.; the natural mixed fatty acid is selected from arachidic acid, palm kernel oil acid, coconut oil acid, etc.
More preferably, the fatty acid has a carbon number of C8 to C22.
Preferably, the polyethylene glycol di-fatty acid ester is synthesized by esterification reaction of polyethylene glycol with different molecular weights and saturated or unsaturated natural fatty acid with two molecules of carbon chains more than or equal to 16.
Further preferably, the polyethylene glycol is selected from PEG400, PEG800, PEG6000, PEG20000, etc., and the long chain fatty acid is selected from common polyethylene glycol di-fatty acid ester commercial materials such as polyethylene glycol 6000 distearate.
Preferably, the inorganic base neutralizer includes, but is not limited to, KOH, K 2 CO 3 NaOH and Na 2 CO 3 One or more of the following.
The inorganic base neutralizer mainly aims at neutralizing excessive acidic substances in the system.
Preferably, the other adjuvants include other surfactants and/or efficacy adjuvants. Other surfactants include, but are not limited to, one or more of the commercially available grease ethoxylates, fatty acid methyl ester ethoxylates, alkyl glycosides, N-acyl amino acid salts, alkyl benzene sulfonates; efficacy aids include, but are not limited to, one or more of preservatives, enzyme preparations, brighteners, color fixatives.
In a second aspect, the present invention provides a process for preparing a concentrated detergent comprising the steps of:
1) Adding polyether nonionic surfactant into the container, and heating; then adding polyethylene glycol di-fatty acid ester to melt and completely dissolve;
2) Sequentially adding modified grease ethoxylate sulfonate and water, and uniformly dispersing;
3) Adding an inorganic base neutralizer, fatty acid and other auxiliary agents (if any) in sequence;
4) Stirring and dispersing, and then adjusting the pH value of the system to the target pH value;
5) And finally adding the enzyme preparation and essence (if any), uniformly stirring, and supplementing the volatilized water to obtain the weak acid alcohol-free solvent type concentrated detergent.
Preferably, in the step (1), the temperature is raised to 40 to 60 ℃.
Preferably, in step (1), the polyethylene glycol di-fatty acid ester is in the form of powder or tablet.
Compared with the prior art, the invention has the following technical effects:
(1) Different from the traditional dilution thickening type concentrated detergent system, the invention utilizes the gel-free area and viscosity reduction property of the modified grease ethoxylate sulfonate, and uses the modified grease ethoxylate sulfonate as a main surface active agent to be matched with a certain amount of polyether nonionic surfactant, so that the whole formula can realize high-power concentration under the condition of no alcohol solvent; meanwhile, organic amine and the like do not need to be added as solubilizers or stabilizers, so that the concentrated detergent has better color and luster, and the yellowing of the product after high-temperature aging or illumination aging is slight.
(2) The invention introduces polyethylene glycol di-fatty acid ester and proper amount of fatty acid as thickener, which hardly has thickening effect in high concentration low water system (before dilution), but has good thickening effect on modified grease ethoxylate sulfonate in high water weak acid system (after dilution). Therefore, the concentrated detergent can overcome the defect of dilution and viscosity reduction after the modified grease ethoxylate sulfonate is introduced, and can still maintain higher viscosity after high-power dilution.
Detailed Description
The invention is further described below with reference to examples. The technical terms and means used in the present invention are those commonly understood by those skilled in the art to have the same meaning, and various reagents, raw materials, equipment, etc. in the present invention are those commonly used as understood by those skilled in the art unless specifically stated otherwise.
General examples
A weak acid alcohol-free solvent type concentrated detergent capable of maintaining high viscosity by high dilution, with pH=5.0-7.0 (preferably 5.0-6.5), comprises 40-70wt% active substance and rest solvent water.
Based on the total amount of weak acid alcohol-free solvent type concentrated detergent, the active substances comprise the following raw materials in percentage by mass: 15 to 40 percent of modified grease ethoxylate sulfonate (preferably 20 to 40 percent), 15 to 40 percent of polyether nonionic surfactant (preferably 15 to 30 percent), 2 to 5 percent of fatty acid (preferably 2 to 4 percent), 2 to 8 percent of polyethylene glycol bis fatty acid ester (preferably 2 to 6 percent), 0.1 to 6 percent of inorganic alkali neutralizer (preferably 0.1 to 3 percent), and 0 to 15 percent of other auxiliary agents (preferably 0 to 10 percent).
Preferably:
the mass ratio of the polyether nonionic surfactant to the polyethylene glycol di-fatty acid ester is greater than 5:1; the viscosity of the diluted liquid is increased or the viscosity of the concentrated detergent is kept basically unchanged under the condition of 3-5 times dilution.
The modified grease ethoxylate sulfonate is obtained by ethoxylation of natural animal and vegetable grease such as palm kernel oil, coconut oil, palm oil, peanut oil and the like, and is obtained after sulfonation reaction, and commercial industrial raw material brands comprise but are not limited to SNS-80 of medium and light daily chemicals, OXOS-1 of Liaoning Octomy and the like. Further preferred chemical structures are:
wherein a+b+c=1 to 30, and r is a long-chain aliphatic alkyl group having 8 to 22 carbon atoms.
The polyether nonionic surfactant is prepared by polymerizing natural fatty alcohol or isomeric fatty alcohol or natural polyol with ethylene oxide or propylene oxide; common among others are AEO 9 、IEO 9 Heterogeneous AEO 7 Tween 20, and the like, and natural alcohol polyoxyethylene ether is preferred according to the cost of raw materials; further preferably, the HLB value of the polyether nonionic surfactant is in the range of 12 to 18.
The fatty acid is natural fatty acid or natural mixed fatty acid; the natural fatty acid is selected from lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, etc.; the natural mixed fatty acid is selected from arachidic acid, palm kernel oil acid, coconut oil acid, etc. More preferably, the fatty acid has a carbon number of C8 to C22.
The polyethylene glycol di-fatty acid ester is synthesized by esterification reaction of polyethylene glycol with different molecular weights and saturated or unsaturated natural fatty acid with carbon chain of more than or equal to 16. Further preferably, the polyethylene glycol is selected from PEG400, PEG800, PEG6000, PEG20000, etc., and the long chain fatty acid is selected from common polyethylene glycol di-fatty acid ester commercial materials such as polyethylene glycol 6000 distearate.
Inorganic base neutralizers include, but are not limited to, KOH, K 2 CO 3 NaOH and Na 2 CO 3 One or more of the following.
Other adjuvants include other surfactants and/or efficacy adjuvants. Other surfactants include, but are not limited to, one or more of the commercially available grease ethoxylates, fatty acid methyl ester ethoxylates, alkyl glycosides, N-acyl amino acid salts, alkyl benzene sulfonates; efficacy aids include, but are not limited to, one or more of preservatives, enzyme preparations, brighteners, color fixatives.
A process for preparing a concentrated detergent comprising the steps of:
1) Adding polyether nonionic surfactant into the container, and heating to 40-60 ℃; then adding powdery or flaky polyethylene glycol di-fatty acid ester to melt and completely dissolve;
2) Sequentially adding modified grease ethoxylate sulfonate and water, and uniformly dispersing;
3) Adding an inorganic base neutralizer, fatty acid and other auxiliary agents (if any) in sequence;
4) Stirring and dispersing, and then adjusting the pH value of the system to the target pH value;
5) And finally adding the enzyme preparation and essence (if any), uniformly stirring, and supplementing the volatilized water to obtain the weak acid alcohol-free solvent type concentrated detergent.
Specific examples and comparative examples
The raw materials used in the invention are all commercial industrial products, and the raw materials of the surfactants in the following examples and comparative examples are all pure unless specifically stated.
SNS-80, OXOS-1: modified grease ethoxylate sodium sulfonate;
DM638: polyethylene glycol 6000 distearate.
Table 1: examples 1-4 and comparative examples 1-3 were formulated (content/wt%)
The difference between example 1 and example 2 is that different brands of modified grease ethoxylate sodium sulfonate (SNS-80 and OXOS-1 respectively) are used, and the results show that the modified grease ethoxylate sodium sulfonate of different manufacturers has similar performance and can be used as parallel substitution raw materials. Analytical data shows that the concentrated stock of examples 1 and 2 can be diluted 3 times and maintain a certain viscosity, while the viscosity after 5 times dilution is relatively low. This is mainly due to the low active content of the concentrate stock itself. Further, as shown in examples 3 and 4, the concentration degree of the raw stock was increased, and thus, the viscosity retention of higher dilution by 5 times was achieved.
Comparative examples 1 to 4 and examples 3 and 4 were obtained by adjusting the ratio of the raw materials based on example 1. It was found that the proportions of the various raw materials significantly affected the stability of the final concentrated stock. When the SNS-80 content is too low (as in comparative example 1) or AEO 9 When the content is too high (as in comparative example 2), the concentrated raw pulp will have gel phenomenon in the sample preparation process, and no sample can be obtained. This is mainly due to the conventional polyether nonionic surfactant AEO 9 There is a gel region. In the invention, the viscosity reduction performance of SNS-80 is utilized to match AEO 9 The range of the gel region of the mixed system can be effectively reduced. Similarly, in theory, when the SNS-80 content is too high,the viscosity reduction effect is too remarkable, and the effective thickening of the primary pulp is difficult to achieve after the primary pulp is diluted. Thus SNS-80 and AEO are preferred 9 The content of (2) is 15-40%.
Comparative example 3 the amount of DM638 was increased based on example 4, and as a result, it was found that the concentrated stock had a delamination phenomenon during storage. This is mainly due to the fact that the thickener itself dissolves in the concentrate system by virtue of hydrogen bonding between its polyether segments and water or the polyether segments themselves. Thus, delamination is related to the water content of the system and the content of the polyether nonionic surfactant. AEO as in comparative example 3 9 The mass ratio of DM638 is 4:1, and the DM638 in the system cannot be effectively dissolved in the system because the total active matter is higher and the water content in the system is less. Therefore, the ratio of the preferred polyether nonionic surfactant to the modified grease ethoxylate sulfonate should preferably be greater than or equal to 5:1.
Comparative example 4 the amount of fatty acid was increased based on example 4, and as a result, the raw stock solution was milky white during the sample preparation and the delamination phenomenon occurred during the storage. This is probably due to the fact that the system of the present invention is weakly acidic, and the fatty acid exists in protonated form and thus is not soluble in the system. At the same time, the excess fatty acid also affects the stability of the stock after dilution, so that it is preferable that the fatty acid content should be < 6%.
Table 2: expanded formulation and test results of example 6
The polyether nonionic surfactant used in example 1 was extended to other nonionic surfactants (other unchanged) in table 2. Tests show that the length of the nonionic polyether chain segment and the HLB value of the molecule have a certain influence on the low-temperature stability of the diluent. The polyether chain segment is too short, the low-temperature stability of the molecule is poor under the condition of relative lipophilicity, the molecular chain segment is easy to separate out at-5 ℃ as in comparative example 5, and the molecular chain segment is completely hydrophilic as in PEG400 in comparative example 6 with the HLB value of 20, so that a system can not be well solubilized, and the low-temperature stability can be realized. Thus, it is conservatively estimated that the HLB value of the polyether nonionic surfactant used should be in the range of 12 to 18.
Table 3: expansion of other surfactant materials
The raw material applications of other surfactants are expanded in table 3. As shown in examples 5-8, the small amount of surfactant such as sulfonic acid, FMEE, SOE-N-60, sodium lauroyl glutamate, etc. introduced into the concentrated stock did not significantly affect the stability of the concentrated stock and viscosity retention after dilution. However, as shown in comparative examples 7 and 8, the raw materials originally common in detergent products such as AES and refined salts cannot be used. The former AES is mainly due to the wide gel region itself, which is very easy to gel. The latter refined salt is a common thickening raw material in detergent products, but in the concentrated system of the invention, the viscosity maintenance after dilution is not realized by sodium chloride, meanwhile, an alcohol solvent or other dissolution assisting measures are not applied in the raw stock formula, and the addition of the refined salt can aggravate the formation of gel of active ingredients in the system, so that the concentrated system cannot be applied to a system.
The preparation process of the concentrated detergent for the above cases is as follows:
(1) Polyether nonionic surfactant is added into the production kettle, and the temperature is raised to 50 ℃. Then adding powdery polyethylene glycol di-fatty acid ester to melt and completely dissolve the polyethylene glycol di-fatty acid ester;
(2) Sequentially adding modified grease ethoxylate sulfonate, and then adding water with the formula dosage to uniformly disperse the modified grease ethoxylate sulfonate;
(3) Firstly adding the alkali neutralizer with the formula dosage, and then sequentially and continuously adding the fatty acid, and/or other surfactants and efficacy auxiliary agents (if any);
(4) Stirring and dispersing, and then regulating the pH value of the system to be proper by using citric acid or liquid alkali;
(5) Finally, adding enzyme preparation, essence and the like (if any), uniformly stirring, and supplementing volatile water to obtain the alcohol-free solvent type weak acid concentrated detergent.
The key point of the process is that the polyether nonionic surfactant needs to be mixed with modified grease ethoxylate sulfonate in advance before the balance of water in the formula is added, so that the viscosity reduction property of the polyether nonionic surfactant is fully utilized. Meanwhile, the thickener polyethylene glycol di-fatty acid ester in the system needs to be heated and dissolved, and the dissolution rate of the thickener polyethylene glycol di-fatty acid ester can be improved by using the polyether nonionic surfactant. And then, when fatty acid or other surfactants are added, the possible gel phenomenon in the batching process can be effectively reduced.
The raw materials and equipment used in the invention are common raw materials and equipment in the field unless specified otherwise; the methods used in the present invention are conventional in the art unless otherwise specified.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A weak acid alcohol-free solvent type concentrated detergent capable of maintaining high viscosity by high-dilution, which is characterized in that: ph=5.0 to 7.0, including 40 to 70wt% active and the balance solvent water; the active substances comprise the following raw materials in percentage by mass based on the total amount of the weak acid alcohol-free solvent type concentrated detergent:
15-40% of modified grease ethoxylate sulfonate,
15-40% of polyether nonionic surfactant,
fatty acid 2-5%,
2-8% of polyethylene glycol di-fatty acid ester,
0.1-6% of inorganic alkali neutralizer.
2. A concentrated detergent as claimed in claim 1, wherein: ph=5.0-6.5, including 40-70 wt% active and the balance solvent water; the active substances comprise the following raw materials in percentage by mass based on the total amount of the weak acid alcohol-free solvent type concentrated detergent:
20-40% of modified grease ethoxylate sulfonate,
15-30% of polyether nonionic surfactant,
fatty acid 2-4%,
2-6% of polyethylene glycol di-fatty acid ester,
0.1-3% of inorganic alkali neutralizer.
3. A concentrated detergent as claimed in claim 1 or claim 2, wherein: the mass ratio of the polyether nonionic surfactant to the polyethylene glycol di-fatty acid ester is greater than 5:1; the viscosity of the diluent is increased or basically maintained unchanged under the condition of 3-5 times of dilution of the concentrated detergent.
4. A concentrated detergent as claimed in claim 1 or claim 2, wherein: the modified grease ethoxylate sulfonate is obtained by ethoxylation and sulfonation reaction of natural animal and vegetable grease.
5. A concentrated detergent as claimed in claim 1 or claim 2, wherein: the polyether nonionic surfactant is prepared by polymerizing natural fatty alcohol or isomeric fatty alcohol or natural polyol with ethylene oxide or propylene oxide.
6. A concentrated detergent as claimed in claim 1 or claim 2, wherein: the fatty acid is natural fatty acid or natural mixed fatty acid.
7. A concentrated detergent as claimed in claim 1 or claim 2, wherein: the polyethylene glycol di-fatty acid ester is synthesized by esterification reaction of polyethylene glycol with different molecular weights and saturated or unsaturated natural fatty acid with carbon chain more than or equal to 16.
8. A concentrated detergent as claimed in claim 1 or claim 2, wherein: the inorganic base neutralizer comprises KOH, K 2 CO 3 NaOH and Na 2 CO 3 One or more of the following.
9. A process for the preparation of a concentrated detergent as claimed in any one of claims 1 to 8, wherein: the method comprises the following steps:
1) Adding polyether nonionic surfactant into the container, and heating; then adding polyethylene glycol di-fatty acid ester to melt and completely dissolve;
2) Sequentially adding modified grease ethoxylate sulfonate and water, and uniformly dispersing;
3) Adding an inorganic alkali neutralizer and fatty acid in sequence;
4) Stirring and dispersing, and then adjusting the pH value of the system to the target pH value;
5) Uniformly stirring, and supplementing volatile water to obtain the weak acid alcohol-free solvent type concentrated detergent.
10. The method of preparing as claimed in claim 9, wherein: in the step (1), the step of (a),
heating to 40-60 ℃;
the polyethylene glycol di-fatty acid ester is in powder or tablet form.
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