Liquid laundry detergent with a synergistic low-temperature cleaning blend.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DOW GLOBAL TECHNOLOGIES LLC
- Filing Date
- 2023-04-13
- Publication Date
- 2026-05-11
AI Technical Summary
Existing laundry detergents do not effectively remove soil at low temperatures, which is a challenge in regions without hot water supply and for consumers seeking to reduce energy consumption.
A liquid laundry detergent formulation comprising specific anionic and nonionic surfactants with a synergistic low-temperature cleaning blend, including a cleaning booster with a weight-average molecular weight of ≤10,000 Daltons, and a pH of 6.5 to 11, designed for effective detergency at temperatures ≤15°C.
The formulation achieves exceptional detergency at low temperatures, maintaining at least 95% of the soil removal index compared to higher temperatures, addressing the inefficiencies of traditional detergents.
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Abstract
Description
[Technical Field]
[0001] The present invention relates to a formulation of a low-temperature household liquid laundry detergent. Specifically, the present invention relates to a liquid laundry detergent formulation comprising (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof, and (b) formula (I) R 6 -O-(EO) x -(AO) y -(EO) z -H (I) (In the formula, R 6 is a linear C 8-18 (It is an alkyl group, where AO is an oxyalkylene group having 3 to 5 carbon atoms, x is 2 to 4, y is 6 to 25, and z is 1 to 50) A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II)
[0002] [ka] (In the formula, each R 1 However, independently, it is a chain of equation (III),
[0003] [ka] Each R 2 is independently selected from the group consisting of C 1~8 an alkyl group and the chain of formula (III), and R 3 and R 4 are independently aliphatic C 3~12 alkanediyl groups, each R 5 is independently selected from the group consisting of hydrogen and -C 1~4 alkyl groups, n is on average 0 to 8, and m is on average 5 to 50) and a cleaning booster of , comprising a synergistic low-temperature detergency blend, the cleaning booster having a weight-average molecular weight of ≦10,000 daltons, and the liquid laundry detergent formulation having a pH of 6.5 to 11.
[0004]
[0005]
[0006]
Background Art
[0004] The efficiency of fabric washing depends on the temperature of the washing liquid. A decrease in the washing liquid temperature usually results in poorer soil removal. However, in many geographical regions, it is unavoidable to wash fabric articles under low-temperature conditions in winter. That is, many consumers do not have hot water supply facilities at home, and the municipal water supply can sometimes be at a temperature of 10°C when supplied to the washing machine. Furthermore, consumers are increasingly choosing to wash without heating in order to reduce energy consumption and carbon emissions. Regardless of the temperature of the washing water, consumers expect the laundry detergent to function consistently.
[0005] Therefore, there is a continuing need for laundry detergent formulations that exhibit effective detergency at a washing water temperature of ≦15°C (preferably, ≦10°C).
Summary of the Invention
[0006] The present invention provides a liquid laundry detergent formulation comprising (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, alpha-sulfocarboxylate esters, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof, and (b) formula (I) R 6 -O-(EO) x -(AO) y -(EO) z -H (I) (In the formula, R 6 is a linear C 8~18 It is an alkyl group, where AO is an oxyalkylene group having 3 to 5 carbon atoms, x is 2 to 4, and y is 6 to 25. z is between 1 and 50. A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II)
[0007] [ka] (In the formula, each R 1 However, independently, it is a chain of equation (III),
[0008] [ka] Each R 2 However, independently, C 1~8Selected from the group consisting of alkyl groups and chains of formula (III), R 3 and R 4 However, independently, aliphatic C 3~12 It is an alkanediyl group, and each R 5 However, independently, hydrogen and -C 1~4 (Selected from the group consisting of alkyl groups, where n is on average 0-8 and m is on average 5-50) The formula contains a synergistic low-temperature cleaning power blend, which includes a cleaning booster with a weight-average molecular weight of ≤10,000 Daltons, and the liquid laundry detergent formulation has a pH of 6.5 to 11.
[0009] The present invention provides a liquid laundry detergent formulation comprising: (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof; and (b) formula (I) (wherein R 6 is a linear C 8~18 (It is an alkyl group, where AO is an oxyalkylene group having 3 to 5 carbon atoms, x is 2 to 4, y is 6 to 25, and z is 1 to 50) A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II) (wherein each R 1 These are independently chains of equation (III), and each R 2 However, independently, C 1~8 Selected from the group consisting of alkyl groups and chains of formula (III), R3 and R 4 However, independently, aliphatic C 3~12 It is an alkanediyl group, and each R 5 However, independently, hydrogen and -C 1~4 (Selected from the group consisting of alkyl groups, where n is on average 0-8 and m is on average 5-50) The liquid laundry detergent formulation contains a wash booster and a synergistic low-temperature cleaning blend, the wash booster having a weight-average molecular weight of ≤10,000 Daltons, the liquid laundry detergent formulation having a pH of 6.5 to 11, and the liquid laundry detergent formulation further contains water.
[0010] The present invention provides a liquid laundry detergent formulation comprising: (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof; and (b) formula (I) (wherein R 6 is a linear C 8~18 (It is an alkyl group, AO is an oxyalkylene group having 3 carbon atoms, x is 2-4, y is 6-25, and z is 1-50) A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II) (wherein each R 1 These are independently chains of equation (III), and each R 2 However, independently, C 1~8 Selected from the group consisting of alkyl groups and chains of formula (III), R 3 and R4 However, independently, aliphatic C 3~12 It is an alkanediyl group, and each R 5 However, independently, hydrogen and -C 1~4 (Selected from the group consisting of alkyl groups, where n is on average 0-8 and m is on average 5-50) The liquid laundry detergent formulation contains a synergistic low-temperature cleaning power blend, the cleaning booster having a weight-average molecular weight of ≤10,000 Daltons, the liquid laundry detergent formulation having a pH of 6.5 to 11, the liquid laundry detergent formulation further containing water, and the liquid laundry detergent formulation containing 5 to 95% by weight of anionic surfactant (a) + nonionic surfactant (b) based on the weight of the liquid laundry detergent formulation.
[0011] The present invention provides a liquid laundry detergent formulation comprising: (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof; and (b) formula (I) (wherein R 6 is a linear C 8~18 (It is an alkyl group, AO is an oxyalkylene group having 3 carbon atoms, x is 2-4, y is 6-25, and z is 1-50) A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II) (wherein each R 1 These are independently chains of equation (III), and each R 2 However, independently, C1~8 Selected from the group consisting of alkyl groups and chains of formula (III), R 3 and R 4 However, independently, aliphatic C 3~12 It is an alkanediyl group, and each R 5 However, independently, hydrogen and -C 1~4 (Selected from the group consisting of alkyl groups, where n is on average 0-8 and m is on average 5-50) The liquid laundry detergent formulation contains a synergistic low-temperature cleaning power blend, which includes a cleaning booster, the cleaning booster having a weight-average molecular weight of ≤10,000 Daltons, the liquid laundry detergent formulation having a pH of 6.5 to 11, the liquid laundry detergent formulation further contains water, and the liquid laundry detergent formulation contains 5 to 95% by weight of anionic surfactant (a) + nonionic surfactant (b) based on the weight of the liquid laundry detergent formulation, the nonionic surfactant making up 15 to 60% by weight of the total weight of anionic surfactant (a) and nonionic surfactant (b).
[0012] The present invention provides a liquid laundry detergent formulation comprising: (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof; and (b) formula (I) (wherein R 6 is a linear C 8~18 (It is an alkyl group, AO is an oxyalkylene group having 3 carbon atoms, x is 2-4, y is 6-25, and z is 1-50) A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II) (wherein each R 1 These are independently chains of equation (III), and each R 2 However, independently, C 1~8 Selected from the group consisting of alkyl groups and chains of formula (III), R 3 and R 4 However, independently, aliphatic C 3~12 It is an alkanediyl group, and each R 5 However, independently, hydrogen and -C 1~4 (Selected from the group consisting of alkyl groups, where n is on average 0-8 and m is on average 5-50) The liquid laundry detergent formulation comprises a synergistic low-temperature cleaning power blend including a cleaning booster, wherein the cleaning booster has a weight-average molecular weight of ≤10,000 Daltons, the liquid laundry detergent formulation has a pH of 6.5 to 11, the liquid laundry detergent formulation further contains water, the liquid laundry detergent formulation comprises 5 to 95% by weight of anionic surfactant (a) + nonionic surfactant (b) based on the weight of the liquid laundry detergent formulation, the nonionic surfactant constitutes 15 to 60% by weight of the total weight of anionic surfactant (a) and nonionic surfactant (b), and the liquid laundry detergent formulation further contains a water-miscible organic solvent.
[0013] The present invention also provides the use of a liquid laundry detergent formulation comprising a synergistic cold-cleaning blend for washing fabrics under cold washing conditions, wherein the synergistic cold-cleaning blend comprises (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxysulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, alpha-sulfocarboxylate esters, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxyether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkanesulfonic acids, beta-alkyloxyalkanesulfonates, oleic acid, and mixtures thereof, and (b) formula (I) (wherein R 6 is a linear C 8~18 (It is an alkyl group, where AO is an oxyalkylene group having 3 to 5 carbon atoms, x is 2 to 4, y is 6 to 25, and z is 1 to 50) A nonionic surfactant is selected from the group of nonionic surfactants having the following characteristics, and is selected based on its ability to impart cleaning stability to laundry detergent formulations for washing water temperatures in the range of 10 to 30°C: (c) Formula (II) (wherein each R 1 These are independently chains of equation (III), and each R 2 However, independently, C 1~8 Selected from the group consisting of alkyl groups and chains of formula (III), R 3 and R 4 However, independently, aliphatic C 3~12 It is an alkanediyl group, and each R 5 However, independently, hydrogen and -C 1~4 (Selected from the group consisting of alkyl groups, where n is on average 0-8 and m is on average 5-50) The liquid laundry detergent formulation comprises a wash booster, wherein the wash booster has a weight-average molecular weight of ≤10,000 Daltons, and the liquid laundry detergent formulation has a pH of 6.5 to 11.
[0014] The present invention provides a method for washing a fabric article, includes providing a soiled fabric article, providing a liquid laundry detergent formulation of the present invention, providing washing water at a temperature of ≤15°C, and providing a washed fabric article by applying the washing water and liquid laundry detergent formulation to the soiled fabric article. [Modes for carrying out the invention]
[0015] Surprisingly, aqueous liquid laundry detergents, with a selection of anionic surfactants, and formula (I) R 6 -O-(EO) x -(AO) y -(EO) z -H (I) (In the formula, R 6 is a linear C 8~18 Alkyl alkyl groups (preferably linear C) 10~18 Alkyl alkyl groups, more preferably linear C chains. 12~14 Alkyl alkyl group or linear C chain 16~18 (An alkyl group) where AO is an oxyalkylene group having 3 to 5 carbon atoms (preferably 3 to 4 carbon atoms, more preferably 3 carbon atoms), x is 2 to 4 (preferably 4), and y is 6 to 25 (preferably 7 to 20, more preferably 8 to 15, most preferably 8 to 14). A nonionic surfactant selected from the group consisting of the following, wherein z is 1 to 50 (preferably 4 to 40, more preferably 6 to 30, most preferably 8 to 25). A nonionic surfactant having formula (II)
[0016] [ka] (In the formula, each R 1 However, independently, it is a chain of equation (III),
[0017]
Chem.
[0018] Unless otherwise indicated, ratios, percentages, parts, etc. are by weight.
[0019] As used herein, unless otherwise indicated, the term "molecular weight" or M W refers to the weight - average molecular weight measured by conventional methods using conventional standards such as gel permeation chromatography (GPC) and polystyrene molecular weight standards. The GPC technique is discussed in detail in Modern Size - Exclusion Liquid Chromatography - Practice of Gel Permeation and Gel Filtration Chromatography, Second Edition, A.M. Striegel, W.W. Yau, J.J. Kirkland, D.D. Bly; John Wiley & Sons, Inc. 2009. Molecular weight is reported herein in units of daltons or equivalently g / mol.
[0020] As used in this specification and the appended claims, the term "low-temperature detergency stability" means that the soil removal index (SRI) calculated using ASTM method D4265-14 for a given laundry detergent formulation at a washing temperature of 10°C is at least 95% (preferably at least 97%, more preferably at least 98%, most preferably at least 100%) of the soil removal index (SRI) calculated using ASTM method D4265-14 for the same laundry detergent formulation at a washing temperature of 30°C.
[0021] Preferably, the liquid laundry detergent formulation of the present invention comprises (a) an anionic surfactant selected from the group consisting of alkyl sulfate, alkylbenzene sulfate, alkylbenzene sulfonic acid, alkylbenzene sulfonate, alkyl polyethoxy sulfate, paraffin sulfonic acid, paraffin sulfonate, olefin sulfonic acid, olefin sulfonate, alpha-sulfo carboxylate, ester of alpha-sulfo carboxylate, alkyl glyceryl ether sulfonic acid, alkyl glyceryl ether sulfonate, sulfate of fatty acid, sulfonate of fatty acid, sulfonate of fatty acid ester, alkylphenol polyethoxy ether sulfate, 2-acryloxy-alkane-1-sulfonic acid, 2-acryloxy-alkane-1-sulfonate, beta-alkyloxyalkane sulfonic acid, beta-alkyloxyalkane sulfonate, oleic acid, salts thereof, and mixtures thereof (preferably, the anionic surfactant is C 8~20 alkylbenzene sulfate, C 8~20 alkylbenzene sulfonic acid, C 8~20 alkylbenzene sulfonate, C 8~20 alkyl polyethoxy sulfate, paraffin sulfonic acid, paraffin sulfonate, alpha-olefin sulfonic acid, alpha-olefin sulfonate, sulfonate of fatty acid, sulfonate of fatty acid ester, oleic acid, and mixtures thereof, more preferably, the anionic surfactant is C 12~16 alkylbenzene sulfonic acid, C12~16 Alkylbenzenesulfonate, C 12~16 Alkyl polyethoxysulfate, C 12~18 Paraffin-sulfonic acid, C 12~18 A surfactant selected from the group consisting of paraffin sulfonates, oleic acid, and mixtures thereof, and more preferably an anionic surfactant is C 12~16 Alkylbenzenesulfonic acid, C 12~16 Alkylbenzenesulfonate, C 12~16 (b) Formula (I) R 6 -O-(EO) x -(AO) y -(EO) z -H (I) (In the formula, R 6 is a linear C 8~18 Alkyl alkyl groups (preferably linear C) 10~18 Alkyl alkyl groups, more preferably linear C chains. 12~14 Alkyl alkyl group or linear C chain 16~18 (An alkyl group) where AO is an oxyalkylene group having 3 to 5 carbon atoms (preferably 3 to 4 carbon atoms, more preferably 3 carbon atoms), x is 2 to 4 (preferably 4), and y is 6 to 25 (preferably 7 to 20, more preferably 8 to 15, most preferably 8 to 14). A nonionic surfactant selected from the group consisting of the following, wherein z is 1 to 50 (preferably 4 to 40, more preferably 6 to 30, most preferably 8 to 25). A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II)
[0022] [ka] (In the formula, each R 1 However, independently, it is a chain of equation (III),
[0023] [ka] Each R 2 Independently, C 1~8 Alkyl and (III) chains (preferably C 1~4 Alkyl and (III) chains, more preferably C 1~2 A functionalized maltodextrin comprising a maltodextrin-based polymer functionalized with alkyl groups and chains of formula (III), most preferably methyl groups, R 3 and R 4 Independently, aliphatic C 3~12 Alkanediyl group (preferably aliphatic C) 3~8 Alkanediyl group, more preferably aliphatic C 3~4 An alkanediyl group, most preferably a -CH2CH2CH2- group (preferably R 3 and R 4 (These may be the same or different) (preferably, aliphatic C 3~12 The alkanediyl group can be linear or branched, and may contain an alicyclic group), each R 5 These are, independently, hydrogen and -C 1~4 Alkyl alkyl groups (preferably hydrogen and -C) 1~3 Alkyl alkyl groups, more preferably hydrogen and -C 1~2 Alkyl groups, most preferably hydrogen and methyl groups (preferably R 5 The part changes across the molecule, and different R 5 The parts are randomly distributed across the molecules or distributed in blocks along the molecules), n is 0 to 8 on average (preferably 1 to 8, more preferably 1 to 4, even more preferably 1 to 2, most preferably 1, and m is 5 to 50 on average)). The liquid laundry detergent formulation comprises a synergistic low-temperature cleaning power blend including a cleaning booster, wherein the cleaning booster has a weight-average molecular weight of ≤10,000 Daltons (preferably 1,139 to 10,000 Daltons, more preferably 1,750 to 5,000 Daltons, most preferably 2,000 to 4,000 Daltons), and the liquid laundry detergent formulation has a pH of 6.5 to 11 (preferably 7.5 to 10) (preferably the liquid laundry detergent formulation further contains water) (preferably the formulated laundry detergent formulation is 5 to 95% by weight based on the weight of the liquid laundry detergent formulation (preferably (The liquid laundry detergent formulation contains 10-80% by weight, more preferably 15-75% by weight, even more preferably 17-65% by weight, even more preferably 50-65% by weight, most preferably 55-60% by weight) of an anionic surfactant (a) + a nonionic surfactant (b) (preferably, the liquid laundry detergent formulation contains 15-60% by weight (preferably 20-60% by weight, more preferably 25-50% by weight, most preferably 25-45% by weight) of a nonionic surfactant (b) based on the total weight of the anionic surfactant (a) and the nonionic surfactant (b)).
[0024] Preferably, the cleaning booster of formula (II) used in the synergistic low-temperature cleaning blend of the present invention contains 90 to 99.5% by weight (more preferably 94 to 99% by weight, most preferably 95 to 98.5% by weight) of alkoxide groups based on the weight of the cleaning booster. More preferably, the cleaning booster of formula (II) used in the synergistic low-temperature cleaning blend of the present invention contains 90 to 99.5% by weight (more preferably 94 to 99% by weight, most preferably 95 to 98.5% by weight) of alkoxide groups based on the weight of the cleaning booster, wherein the alkoxide groups are selected from the group consisting of -CH2CH2O- groups, -CH2CH(CH3)O- groups, and -CH2CH(CH2CH3)O- groups. More preferably, the cleaning booster of formula (II) used in the synergistic low-temperature cleaning power blend of the present invention contains 90 to 99.5% by weight (more preferably 94 to 99% by weight, most preferably 95 to 98.5% by weight) of alkoxide groups based on the weight of the cleaning booster, wherein the alkoxide groups are -CH2CH2O- groups (i.e., R in formula (III)). 5(is hydrogen) and the -CH2CH(CH3)O- group (i.e., R 5 The group is selected from the group consisting of (where is a methyl group). Most preferably, the cleaning booster of formula (II) used in the synergistic low-temperature cleaning power blend of the present invention contains 90 to 99.5% by weight (more preferably 94 to 99% by weight, most preferably 95 to 98.5% by weight) of alkoxide groups based on the weight of the cleaning booster, wherein the alkoxide groups are -CH2CH2O- groups (i.e., R in formula (III)). 5 (is hydrogen) and the -CH2CH(CH3)O- group (i.e., R 5 The group is selected from the group consisting of (where is a methyl group), and ≤70% by weight (preferably 10-65% by weight, more preferably 25-60% by weight) of the alkoxide group is a -CH2CH(CH3)O- group. Preferably, the molar ratio of -CH2CH2O- groups to -CH2CH(CH3)O- groups in the washing booster is >0.9:1.
[0025] Preferably, the liquid laundry detergent formulation of the present invention further comprises a water-miscible organic solvent. More preferably, the liquid laundry detergent formulation of the present invention further comprises 0 to 40% by weight (preferably 2 to 40% by weight (more preferably 4 to 35% by weight, even more preferably 5 to 30% by weight, most preferably 5 to 25% by weight) of a water-miscible organic solvent based on the weight of the liquid laundry detergent formulation. Most preferably, the liquid laundry detergent formulation of the present invention further comprises 0 to 40% by weight (preferably 2 to 40% by weight (more preferably 4 to 35% by weight, even more preferably 5 to 30% by weight, most preferably 5 to 25% by weight) of a water-miscible organic solvent based on the weight of the liquid laundry detergent formulation, wherein the water-miscible organic solvent has one hydroxyl group C 1~4 The alcohol is selected from the group consisting of alcohols (e.g., ethanol), propylene glycol, glycerol, 1,3-butanediol, 1,3-hexanediol, dipropylene glycol, and mixtures thereof (preferably ethanol, propylene glycol, and mixtures thereof, more preferably propylene glycol).
[0026] Preferably, the liquid laundry detergent formulation of the present invention optionally contains: bilder (e.g., sodium bicarbonate, sodium carbonate, zeolite, sodium citrate, sodium tripolyphosphate, and aminocarboxylates such as (methylglycine diacetic acid, sodium salt or glutamate diacetic acid, sodium salt)), hydrotropes (e.g., sodium xylene sulfonate, sodium cumene sulfonate, sodium toluene sulfonate), foam control agents (e.g., polydimethylsiloxane), enzymes (e.g., protease, cellulase, lipase, amylase, mannanase); preservatives, fragrances (e.g., The additive further comprises optional additives selected from the group consisting of essential oils such as D-limonene, fluorescent whitening agents; bleaching agents (e.g., sodium percarbonate, sodium perborate, sodium hypochlorite); dyes; additive polymers (e.g., acrylic acid homopolymers, and dispersant polymers such as copolymers of acrylic acid with maleic acid, sulfonated monomers and / or ethyl acrylate); fabric softeners (e.g., softening silicones, cationic coacervated polymers (e.g., cationic hydroxyalkylcellulose, polyquaternium polymers)); pH adjusters / buffers; and mixtures thereof.
[0027] Preferably, the use of a liquid laundry detergent formulation containing a synergistic low-temperature cleaning blend for washing fabrics under low-temperature washing conditions (preferably at a washing temperature of ≤15°C, more preferably at a washing temperature of ≤10°C), wherein the synergistic low-temperature cleaning blend comprises (a) alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxysulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, alpha-sulfocarboxylates An anionic surfactant selected from the group consisting of esters of fatty acids, alkylglyceryl ether sulfonic acid, alkylglyceryl ether sulfonate, fatty acid sulfate, fatty acid sulfonate, fatty acid ester sulfonate, alkylphenol polyethoxyether sulfate, 2-acrylooxyalkane-1-sulfonic acid, 2-acrylooxyalkane-1-sulfonate, beta-alkyloxyalkanesulfonic acid, beta-alkyloxyalkanesulfonate, oleic acid, salts thereof, and mixtures thereof (preferably the anionic surfactant is C 8~20 Alkylbenzene sulfate, C 8~20 Alkylbenzenesulfonic acid, C 8~20 Alkylbenzenesulfonate, C 8~20 The surfactant is selected from the group consisting of alkyl polyethoxysulfates, paraffin sulfonic acid, paraffin sulfonate, alpha-olefin sulfonic acid, alpha-olefin sulfonate, fatty acid sulfonate, fatty acid ester sulfonate, oleic acid, and mixtures thereof, and more preferably the anionic surfactant is C 12~16 Alkylbenzenesulfonic acid, C 12~16 Alkylbenzenesulfonate, C 12~16 Alkyl polyethoxysulfate, C 12~18 Paraffin-sulfonic acid, C 12~18 A surfactant selected from the group consisting of paraffin sulfonates, oleic acid, and mixtures thereof, and more preferably an anionic surfactant is C 12~16 Alkylbenzenesulfonic acid, C12~16 Alkylbenzenesulfonate, C 12~16 (b) Formula (I) R 6 -O-(EO) x -(AO) y -(EO) z -H (I) (In the formula, R 6 is a linear C 8~18 Alkyl alkyl groups (preferably linear C) 10~18 Alkyl alkyl groups, more preferably linear C chains. 12~14 Alkyl alkyl group or linear C chain 16~18 (An alkyl group) where AO is an oxyalkylene group having 3 to 5 carbon atoms (preferably 3 to 4 carbon atoms, more preferably 3 carbon atoms), x is 2 to 4 (preferably 4), and y is 6 to 25 (preferably 7 to 20, more preferably 8 to 15, most preferably 8 to 14). A nonionic surfactant selected from the group consisting of the following, wherein z is 1 to 50 (preferably 4 to 40, more preferably 6 to 30, most preferably 8 to 25). A nonionic surfactant selected from the group of nonionic surfactants having (c) formula (II)
[0028] [ka] (In the formula, each R 1 However, independently, it is a chain of equation (III),
[0029] [ka] Each R 2 Independently, C1~8 Alkyl and (III) chains (preferably C 1~4 Alkyl and (III) chains, more preferably C 1~2 A functionalized maltodextrin comprising a maltodextrin-based polymer functionalized with alkyl groups and chains of formula (III), most preferably methyl groups, R 3 and R 4 Independently, aliphatic C 3~12 Alkanediyl group (preferably aliphatic C) 3~8 Alkanediyl group, more preferably aliphatic C 3~4 An alkanediyl group, most preferably a -CH2CH2CH2- group (preferably R 3 and R 4 (These may be the same or different) (preferably, aliphatic C 3~12 The alkanediyl group can be linear or branched, and may contain an alicyclic group), each R 5 These are, independently, hydrogen and -C 1~4 Alkyl alkyl groups (preferably hydrogen and -C) 1~3 Alkyl alkyl groups, more preferably hydrogen and -C 1~2 Alkyl groups, most preferably hydrogen and methyl groups (preferably R 5 The part changes across the molecule, and different R 5 The parts are randomly distributed across the molecules or distributed in blocks along the molecules), n is 0 to 8 on average (preferably 1 to 8, more preferably 1 to 4, even more preferably 1 to 2, most preferably 1, and m is 5 to 50 on average)). A wash booster is included, wherein the wash booster has a weight-average molecular weight of ≤10,000 Daltons (preferably 1,139 to 10,000 Daltons, more preferably 1,750 to 5,000 Daltons, most preferably 2,000 to 4,000 Daltons), and the liquid laundry detergent formulation has a pH of 6.5 to 11 (preferably 7.5 to 10) (preferably the liquid laundry detergent formulation further contains water) (preferably the formulated laundry detergent formulation is 5 to 95% by weight based on the weight of the liquid laundry detergent formulation (preferably, The formulation contains 10-80% by weight, more preferably 17-65% by weight, even more preferably 50-65% by weight, most preferably 55-60% by weight) of an anionic surfactant (a) + a nonionic surfactant (b) (preferably, the liquid laundry detergent formulation contains 15-60% by weight (preferably 20-60% by weight, more preferably 25-50% by weight, most preferably 25-45% by weight) of the nonionic surfactant (b) based on the total weight of the anionic surfactant (a) and the nonionic surfactant (b)).
[0030] Preferably, the method for washing a fabric article of the present invention comprises providing a soiled fabric article (preferably soiled with oily and greasy stains, more preferably soiled with sebum) (preferably soiled with soiled cotton fabric, more preferably soiled with soiled polycotton fabric), providing a liquid laundry detergent formulation of the present invention comprising a synergistic low-temperature cleaning blend, providing wash water at a temperature of ≤15°C (preferably ≤10°C), and applying the wash water and the liquid laundry detergent formulation to the soiled fabric article to provide a washed fabric article. More preferably, the method for washing a fabric article of the present invention comprises providing a soiled fabric article (preferably soiled with oily and greasy stains, more preferably soiled with sebum) (preferably soiled with soiled cotton fabric, more preferably soiled with soiled polycotton fabric), providing a liquid laundry detergent formulation of the present invention comprising a synergistic low-temperature cleaning blend, providing wash water at a temperature of ≤15°C (preferably ≤10°C), providing rinse water, applying the wash water and the liquid laundry detergent formulation to the soiled fabric to provide a washed fabric article, and then applying the rinse water to the washed fabric article to remove the formulated laundry detergent formulation from the washed fabric article.
[0031] Herein, several embodiments of the present invention will be described in detail in the following examples.
[0032] Synthesis S1:LC 12~14 -(EO)4-(PO)8-(EO) 12 formula LC 12~14 -(EO)4-(PO)8-(EO) 12 (In the formula, “LC 12~14 " is a linear C 12~14 A nonionic surfactant represented by the alkyl moiety was prepared. 1 mole of LC 12~14Alcohol and a 45-50 wt% aqueous potassium hydroxide solution were packed into the reactor. The amount of potassium hydroxide packed was sufficient to provide a KOH concentration of 0.17 wt% based on the weight of the polymer product. The contents of the reactor were maintained at a temperature of 50-60°C for 30 minutes. Then, the water content in the vapor space of the reactor was reduced to less than 1,000 ppm by vacuum stripping at 80°C. The temperature setpoint of the contents of the reactor was then raised to 110°C. Then, LC was performed. 12~14 Based on the initial amount of alcohol packed into the reactor, 4 molar equivalents of ethylene oxide (EO) were slowly supplied to the reactor while maintaining the reactor contents temperature at 110-140°C. When the pressure inside the reactor returned to approximately the same level as before the supply of EO, LC was performed. 12~14 Based on the initial alcohol load, 8 molar equivalents of propylene oxide (PO) were slowly supplied to the reactor while maintaining the reactor contents temperature at 110-140°C. When the pressure inside the reactor returned to approximately the same level as before the supply of PO, LC was performed. 12~14 Based on the initial alcohol load, 12 molar equivalents of EO were slowly supplied to the reactor while maintaining the reactor contents temperature at 110–140°C. When the pressure inside the reactor returned to approximately the same pressure as before the EO was supplied, the reactor contents were maintained at 110–140°C for a further 2 hours to promote the complete reaction of the EO. The reactor was then purged with nitrogen and the reactor contents were cooled to 60°C. Acetic acid was then added to the reactor contents to neutralize the potassium hydroxide. After cooling the reactor contents to 40°C, the product polymer was recovered.
[0033] Synthesis S2~S9 The procedure described in Synthesis S1 was repeated in Synthesis S2-S9. In this process, the alcohols used had alkyl groups as shown in Table 1, and the relative molar amounts of EO and PO added in each step were as shown in Table 1.
[0034] [Table 1]
[0035] Synthetic S10: Cleaning Booster A washing booster was prepared using a pressure reactor. Propylene oxide (PO) and ethylene oxide (EO) were delivered separately using an ISCO syringe pump equipped with a robot-controlled needle and a compressed gas microvalve. The pressure reactor was fitted with a glass insert and a removable stirring paddle. The reactor was first dried in a vacuum oven at 125°C.
[0036] Bis(3-aminopropyl)methylamine (14.5 g) and propylene oxide (17 g) were mixed in an autoclav and stirred at 140°C for 8 hours. The resulting material was mixed with aqueous KOH (4 g, 45 wt% KOH), and then the water was removed. This mixture was propoxylated with propylene oxide (27.7 g) at 115°C for 24 hours to form an intermediate having an approximate composition of (diamine)(PO)8.
[0037] The resulting intermediate (diamine)(PO)8, containing approximately 3 wt% KOH (0.567 mL), was packed into the reactor under nitrogen. The reactor was then sealed and packed with propylene oxide (1.496 mL). The temperature was raised to 115°C, and after reaching the process temperature, the reaction mixture was stirred for 24 hours. The reactor pressure was observed to decrease and gradually level off by the end of the heating period, indicating that the reaction was complete. The reactor was cooled, evacuated, and purged with nitrogen. The reactor was then heated to 130°C, and ethylene oxide (1.684 mL) was added to the contents of the reactor. The contents of the reactor were stirred at 130°C for 4 hours. The pressure curve indicated completion of the reaction. This synthesis yielded a sample with a PO / EO ratio of 33.7 / 32.7 mol / mol. After cooling, evacuating, and purging the reactor with nitrogen, small samples were taken from the reactor for NMR and GPC analysis, and the results are shown in Table 2.
[0038] [Table 2]
[0039] Comparative Examples CF1-CF8 and Examples F1-F4: Concentrated Detergents Concentrated laundry detergent formulations for Comparative Examples CF1-CF8 and Examples F1-F4, which will be used in the washing tests in subsequent examples, were prepared, having the general formulations as shown in Table 3. Water and propylene glycol were mixed in a beaker with mechanical stirring. Then, dodecylbenzenesulfonic acid, sodium laureth-2 sulfate, oleic acid, and potassium hydroxide were added to the beaker while continuing to stir. Next, nonionic surfactants (synthetic S1-S6 or Lutensol® XL-80) were added to the beaker while continuing to stir. Then, the pH was adjusted to 8-8.5 with potassium hydroxide to form a concentrated laundry detergent.
[0040] Comparative Examples CF9-CF18 and Examples F5-F10: Standard Laundry Detergents Standard laundry detergent formulations for Comparative Examples CF9-CF8 and Examples F5-F10, used in the washing tests in subsequent examples, were prepared with the formulations shown in Table 4. Water, dodecylbenzenesulfonic acid, sodium laureth-2 sulfate, oleic acid, and sodium hydroxide were then added to a beaker while continuing to stir. Nonionic surfactants (synthetic S1, S3-S9, or Lutensol® XL-80) and, if present, a washing booster were then added to the beaker while continuing to stir. The pH was then adjusted to 8-8.5 with potassium hydroxide to form the standard laundry detergent.
[0041] Comparative Examples CF19-CF27 and Examples F11-F15: Unit Dose of Detergent Unit-dose laundry detergent formulations for Comparative Examples CF19-CF27 and Examples F11-F15, used in the washing tests in subsequent examples, were prepared with the formulations shown in Table 5. Water and propylene glycol were mixed in a beaker with mechanical stirring. Dodecylbenzenesulfonic acid, ammonium laureth-2 sulfate, oleic acid, and monoethanolamine were then added to the beaker while continuing to stir. Nonionic surfactants (synthetic S1-S6 or Lutensol® XL-80) were then added to the beaker while continuing to stir. The pH was then adjusted to 7.5 with monoethanolamine to form a concentrated laundry detergent.
[0042] Low-temperature cleaning power The low-temperature cleaning power stability (LTD) of the laundry detergent formulations of Comparative Examples CF1-CF27 and Examples F1-F15 was evaluated using a Terg-o-tometer model TOM-52-A, available from SR Lab Instruments (6 x 1L wells), which was agitated at 120 cycles per minute, under the conditions shown below.
[0043] [Table 3]
[0044] Using the following formula, calculate the percentage of dirt removed for each of the laundry detergent formulations in Comparative Examples CF1 to CF27 and Examples F1 to F15. SR(%)=[(L * A -L * B ) / (96-L * B )] × 100% In the formula, SR(%) is the calculated percentage of dirt removal, and in the formula, L * A This refers to the L of a dry fabric sample measured by a spectrophotometer (Konica Minolta Spectrophotometer CM-3600A) after washing. * It is a value, L * BThis refers to L of a dry fabric sample measured by a spectrophotometer before washing. * This is the value. The results are provided in Tables 3-5.
[0045] [Table 4]
[0046] [Table 5]
[0047] [Table 6]
Claims
1. Liquid laundry detergent formulation, (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof, (b) Formula (I) 2 ６ --(EO) ｘ -(AO) ｙ -(59) ｚ -2 (9) (In the formula, R ６ is a linear C ８～１８ (It is an alkyl group, where AO is an oxyalkylene group having 3 to 5 carbon atoms, x is 2 to 4, y is 6 to 25, and z is 1 to 50) A nonionic surfactant selected from the group of nonionic surfactants having, (c) Formula (II) 【Chemistry 1】 (In the formula, each R １ However, independently, it is a chain of equation (III), 【Chemistry 2】 Each R ２ is independently selected from the group consisting of a C １～８ alkyl group and a chain of formula (III), R ３ and R ４ are independently aliphatic C ３～１２ alkanediyl groups, each R ５ is independently selected from the group consisting of hydrogen and a -C １～４ alkyl group, n is on average from 0 to 8, and m is on average from 5 to 50). A liquid laundry detergent formulation comprising a synergistic low-temperature cleaning power blend, wherein the cleaning booster has a weight-average molecular weight of ≤10,000 Daltons, and the liquid laundry detergent formulation has a pH of 6.5 to 11.
2. The liquid laundry detergent formulation according to claim 1, further comprising water.
3. The liquid laundry detergent formulation according to claim 2, wherein AO is an oxyalkylene group having three carbon atoms, and the liquid laundry detergent formulation contains 5 to 95% by weight of the anionic surfactant (a) + the nonionic surfactant (b) based on the weight of the liquid laundry detergent formulation.
4. The liquid laundry detergent formulation according to claim 3, wherein the liquid laundry detergent formulation contains 15 to 60% by weight of the nonionic surfactant (b) based on the total weight of the anionic surfactant (a) and the nonionic surfactant (b).
5. The liquid laundry detergent formulation according to claim 6, wherein the liquid laundry detergent formulation further comprises a water-miscible organic solvent.
6. The liquid laundry detergent formulation according to claim 5, further comprising optionally selected additives from the group consisting of builders, hydrotropes, foam control agents, enzymes, preservatives, fragrances, fluorescent whitening agents; bleaches, dyes, additive polymers, fabric softeners, pH adjusters / buffers, and mixtures thereof.
7. The use of a liquid laundry detergent formulation containing a synergistic low-temperature cleaning blend for washing fabrics under low-temperature washing conditions, wherein the synergistic low-temperature cleaning blend is (a) an anionic surfactant selected from the group consisting of alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates, alpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, fatty acid sulfates, fatty acid sulfonates, fatty acid ester sulfonates, alkylphenol polyethoxy ether sulfates, 2-acrylooxyalkane-1-sulfonic acids, 2-acrylooxyalkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, oleic acid, and mixtures thereof, (b) Formula (I) 2 ６ --(EO) ｘ -(AO) ｙ -(59) ｚ -2 (9) (In the formula, R ６ is a linear C ８～１８ It is an alkyl group, where x is 2 to 4, AO is an oxyalkylene group having 3 to 5 carbon atoms, and y is 6 to 25. z is between 1 and 50. A nonionic surfactant is selected from the group of nonionic surfactants having the following characteristics, and is selected based on its ability to impart cleaning stability to the laundry detergent formulation in washing water temperatures ranging from 10 to 30°C: (c) Formula (II) 【Transformation 3】 (In the formula, each R １ However, independently, it is a chain of equation (III), 【Chemistry 4】 Each R ２ However, independently, C １～８ Selected from the group consisting of alkyl groups and chains of formula (III), R ３ and R ４ However, independently, aliphatic C ３～１２ It is an alkanediyl group, and each R ５ However, independently, hydrogen and -C １～４ Selected from the group consisting of alkyl groups, where n is on average 0 to 8 and m is on average 5 to 50. A cleaning booster comprising a cleaning booster having a weight-average molecular weight of ≤10,000 Daltons, and a liquid laundry detergent formulation having a pH of 6.5 to 11, for use.
8. A method for washing textile articles, To provide soiled cloth items, To provide the liquid laundry detergent formulation described in claim 1, To provide washing water at a temperature of ≤15℃, A method comprising applying the washing water and the liquid laundry detergent mixture to the soiled fabric article to provide a cleaned fabric article.
9. The method according to claim 8, wherein the provided liquid laundry detergent formulation further comprises a water-miscible organic solvent.
10. The method according to claim 8, wherein the provided liquid laundry detergent formulation further comprises a water-miscible organic solvent and optionally an additive selected from the group consisting of builders, hydrotropes, foam control agents, enzymes, preservatives, fragrances, fluorescent whitening agents; bleaches, dyes, additive polymers, fabric softeners, pH adjusters / buffers, and mixtures thereof.