Method for Making Liquid Laundry Detergent Formulations

Abstract

A method of making a liquid laundry detergent formulation is provided, the method comprising providing a liquid carrier; providing a detersive surfactant; and selecting a cleaning booster of formula (I): [Formula 1] JPEG2023523893000019.jpg28128In the formula, x is 3 to 10, y is 5 to 20, z is 5 to 30, x+y+z≧18x≠z, and each R is C 7-9 wherein at least 75% by weight of the R groups are branched, and the selected cleaning booster of Formula (I) is selected based on its cleaning boosting properties; providing the selected cleaning booster of Formula (I); and combining a liquid carrier, a detersive surfactant, and the selected cleaning booster of Formula (I) to provide a liquid laundry detergent formulation.

Description

[Technical Field]

[0001] The present invention relates to a method of making a liquid laundry detergent formulation, in particular to a method of making a liquid laundry detergent formulation, comprising providing a liquid carrier, providing a detersive surfactant, and selecting a cleaning booster of formula (I): [ka] In the formula, x is 3 to 10, y is 5 to 20, z is 5 to 30, x+y+z≧18, x≠z, and each R is C 7-9 wherein at least 75% by weight of the R groups are branched, and the selected cleaning booster of Formula (I) is selected based on its cleaning boosting properties; providing the selected cleaning booster of Formula (I); and combining a liquid carrier, a detersive surfactant, and the selected cleaning booster of Formula (I) to provide a liquid laundry detergent formulation.

[0002] Soils in laundry fall into two general categories: i) generally negatively charged layers of aluminosilicates and positively charged cations, e.g., Ca, which are located between the aluminosilicate layers and hold them together; ++ and clay soils, including particles containing cellulose, cellulose, and cellulose; or ii) oil- or grease-borne soils, typically caused by stains of non-saponifiable oils such as frying oil, grease, tomato or spaghetti sauce spills, human sweat (sebum), and used motor oil or petroleum. Oil-based stains can usually be removed by dry washing, which is expensive. Previously, such oily stains were removed using very high-temperature washing conditions (typically 60-90°C), but the current trend toward energy conservation has led to the use of much lower washing temperatures, in the range of 15-50°C. Unfortunately, however, oily stains are not easily removed at such temperatures.

[0003] Soil release agents for use in household and industrial fabric treatment processes, such as laundry, stain prevention, fabric softeners, and the like, are known in the art. Polyesters of terephthalic acid and other aromatic dicarboxylic acids with soil-release properties have been widely disclosed in the art, such as the so-called PET / POET polymers (polyethylene terephthalate / polyoxyethylene terephthalate), which have been known for over 20 years, and the PET / PEG (polyethylene terephthalate / polyethylene glycol) polymers taught in U.S. Pat. No. 3,557,039. These PET / POET and PET / PEG polymers are known to be useful in promoting the release of oily soils, particularly from synthetic fibers such as polyester. Their effectiveness is believed to be due to the affinity resulting from the structural similarity between PET / POET and PET / PEG polymers and polyester fibers. Over the past few years, the backbone and side chains in PET / POET and PET / PEG polymers have been modified to achieve a range of cost-effective polyester soil-release additives that can be incorporated into liquid and solid (granular) detergents. However, the major drawback of these materials is that they offer little or no benefit on cotton and cotton blend fabrics, and much larger amounts of polymer are required before any soil release effect is observed, making their use difficult, especially since PET / POET materials have low water solubility.

[0004] Despite extensive research activity in this field, there continues to be a need for soil release additives that have excellent soil release properties, especially for oil and grease-based soils, and that are highly effective on natural fabrics such as cotton and cotton-blend fabrics at the low temperatures found under home laundering conditions.

[0005] The present invention provides a method of making a liquid laundry detergent formulation, the method comprising providing a liquid carrier; providing a detersive surfactant; and selecting a cleaning booster of formula (I): [ka] In the formula, x is 3 to 10, y is 5 to 20, z is 5 to 30, x+y+z≧18, x≠z, and each R is C 7-9 wherein at least 75% by weight of the R groups are branched, and the selected cleaning booster of Formula (I) is selected based on its cleaning boosting properties; providing the selected cleaning booster of Formula (I); and combining a liquid carrier, a detersive surfactant, and the selected cleaning booster of Formula (I) to provide a liquid laundry detergent formulation.

[0006] The present invention provides a method of cleaning the fabric articles of the present invention, the method comprising providing soiled fabric articles, providing a liquid laundry detergent formulation made by the method of the present invention, providing wash water, and applying the wash water and the liquid laundry detergent formulation to the soiled fabrics to provide cleaned fabric articles, wherein the wash water is at a temperature of 35°C or less. DETAILED DESCRIPTION OF THE INVENTION

[0007] It has surprisingly been found that materials according to formula (I) have cleaning booster properties that provide liquid laundry detergent formulations containing them with the benefit of effective soil release, particularly of oil and grease based soils (e.g. sebum soils) from cotton containing fabrics (e.g. polycotton blends) at low temperatures (i.e. 22°C), and as an added advantage, exhibit ready biodegradability according to the procedure of OECD 301F.

[0008] Unless otherwise indicated, ratios, percentages, parts, etc. are by weight. Weight percentages (or wt %) in a composition are percentages of dry weight, i.e., excluding any water that may be present in the composition.

[0009] Preferably, the method of making the liquid laundry detergent formulation of the present invention comprises providing a liquid carrier, providing a detersive surfactant, and selecting a cleaning booster of formula (I): [ka] In the formula, x is 3 to 10 (preferably 4 to 7; more preferably 4 to 6; most preferably 5), y is 5 to 20 (preferably 7 to 18; more preferably 8 to 17; most preferably 9 to 15), z is 5 to 30 (preferably 9 to 30; more preferably 10 to 28; most preferably 16 to 26), x + y + z ≥ 18 (preferably 20 to 60; more preferably 21 to 28; even more preferably 24 to 60; most preferably 35 to 60), x ≠ z, and each R is C 7-9 and wherein 75% or more by weight (preferably, 80-100% by weight; more preferably, 90-100% by weight; even more preferably, 95-100% by weight; even more preferably, 98-100% by weight; even more preferably, 99-100% by weight; and most preferably, 99.5-100% by weight) of the R groups are branched; and wherein the selected cleansing booster of Formula (I) is selected based on its cleansing boosting properties; providing the selected cleansing booster of Formula (I); and combining a liquid carrier, a cleaning surfactant, and the selected cleansing booster of Formula (I) to provide a liquid laundry detergent formulation.

[0010] More preferably, the method of making the liquid laundry detergent formulation of the present invention comprises providing a liquid carrier, providing a detersive surfactant, and selecting a cleaning booster of formula (I): [ka] In the formula, x is 3 to 10 (preferably 4 to 7; more preferably 4 to 6; most preferably 5), y is 5 to 20 (preferably 7 to 18; more preferably 8 to 17; most preferably 9 to 15), z is 5 to 30 (preferably 9 to 30; more preferably 10 to 28; most preferably 16 to 26), x + y + z ≥ 18 (preferably 20 to 60; more preferably 21 to 28; even more preferably 24 to 60; most preferably 35 to 60), x ≠ z, and each R is C 7-9and combining a liquid carrier, a cleaning surfactant, and the selected cleansing booster of Formula (I) to form a liquid laundry detergent formulation. providing, wherein the provided liquid laundry detergent formulation comprises, based on the weight of the liquid laundry detergent formulation, 15 to 97.99 wt. % (preferably, 40 to 94 wt. %; more preferably, 45 to 90 wt. %; most preferably, 47 to 71 wt. %) of a liquid carrier, 2 to 60 wt. % (preferably, 5 to 50 wt. %; more preferably, 7.5 to 45 wt. %; most preferably, 35 to 40 wt. %) of a cleaning surfactant, based on the weight of the liquid laundry detergent formulation, and 0.01 to 25 wt. % (more preferably, 1 to 10 wt. %; even more preferably, 2.5 to 7.5 wt. %; most preferably, 4 to 6 wt. %) of a selected cleaning booster of Formula (I).

[0011] Preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise a liquid carrier. More preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise 15 to 97.9 wt. % (preferably, 40 to 94 wt. %; more preferably, 45 to 75 wt. %; most preferably, 47 to 71 wt. %) of the liquid carrier, based on the weight of the liquid laundry detergent formulation. Even more preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise 15 to 97.9 wt. % (preferably, 40 to 94 wt. %; more preferably, 45 to 75 wt. %; most preferably, 47 to 71 wt. %) of the liquid carrier, based on the weight of the liquid laundry detergent formulation, and the liquid carrier comprises water. Most preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise 15 to 97.9 wt. % (preferably, 40 to 94 wt. %; more preferably, 45 to 75 wt. %; most preferably, 47 to 71 wt. %) of the liquid carrier, based on the weight of the liquid laundry detergent formulation, and the liquid carrier is water.

[0012] Preferably, the liquid carrier used in the method of the present invention is C 1-3 Alkanolamines and C 1-3 The liquid carrier used in the method of the present invention may contain a water-miscible liquid such as an alkanol. More preferably, the liquid carrier used in the method of the present invention contains 0 to 8 wt. % (preferably, 0.2 to 8 wt. %; more preferably, 0.5 to 5 wt. %) of a water-miscible liquid based on the weight of the liquid carrier, and the water-miscible liquid is C 1-3 Alkanolamines, C 1-3 alkanols, and mixtures thereof.

[0013] Preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise a cleaning surfactant. More preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise 2 to 60 wt. % (more preferably, 5 to 50 wt. %; even more preferably, 7.5 to 30 wt. %; most preferably, 25 to 40 wt. %) of a cleaning surfactant based on the weight of the liquid laundry detergent formulation. Even more preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise 2 to 60 wt. % (more preferably, 5 to 50 wt. %; even more preferably, 7.5 to 30 wt. %; most preferably, 25 to 40 wt. %) of a cleaning surfactant based on the weight of the liquid laundry detergent formulation, the cleaning surfactant being selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, and mixtures thereof. Even more preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise 2 to 60 wt. % (more preferably, 5 to 50 wt. %; even more preferably, 7.5 to 30 wt. %; most preferably, 25 to 40 wt. %) of a cleaning surfactant, based on the weight of the liquid laundry detergent formulation, wherein the cleaning surfactant comprises an anionic surfactant. Even more preferably, the liquid laundry detergent formulations provided by the methods of the present invention comprise 2 to 60 wt. % (more preferably, 5 to 50 wt. %; even more preferably, 7.5 to 30 wt. %; most preferably, 25 to 40 wt. %) of a cleaning surfactant, based on the weight of the liquid laundry detergent formulation, wherein the cleaning surfactant comprises a mixture of anionic and nonionic surfactants. Most preferably, the liquid laundry detergent formulation provided by the method of the present invention comprises 2 to 60 wt. % (more preferably, 5 to 50 wt. %; even more preferably, 7.5 to 30 wt. %; most preferably, 25 to 40 wt. %) of a cleaning surfactant, based on the weight of the liquid laundry detergent formulation, the cleaning surfactant comprising a mixture of linear alkyl benzene sulfonate, sodium lauryl ethoxy sulfate, and nonionic alcohol ethoxylate.

[0014] Anionic surfactants include alkyl sulfates, alkylbenzene sulfates, alkylbenzene sulfonic acids, alkylbenzene sulfonates, alkyl polyethoxy sulfates, alkoxylated alcohols, 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, sulfates of fatty acids, sulfonates of fatty acids, sulfonates of fatty acid esters, alkyl phenols, alkylphenol polyethoxy ether sulfates, 2-acryloxy-alkane-1-sulfonic acids, 2-acryloxy-alkane-1-sulfonates, beta-alkyloxyalkane sulfonic acids, beta-alkyloxyalkane sulfonates, amine oxides, and mixtures thereof. Preferred anionic surfactants include C 8-20 Alkylbenzene sulfate, C 8-20 Alkylbenzene sulfonic acid, C 8-20 Alkylbenzene sulfonates, paraffin sulfonic acids, paraffin sulfonates, alpha-olefin sulfonic acids, alpha-olefin sulfonates, alkoxylated alcohols, C 8-20 Alkylphenols, amine oxides, sulfonates of fatty acids, sulfonates of fatty acid esters, C 8-10 alkyl polyethoxy sulfates, and mixtures thereof. More preferred anionic surfactants include C 12-16 Alkylbenzene sulfonic acid, C 12-16 Alkylbenzene sulfonic acid, C 12-18 Paraffin sulfonic acid, C 12-18 Paraffin sulfonic acid, C 12-16 Alkyl polyethoxy sulfates, and mixtures thereof.

[0015] Nonionic surfactants include alkoxylates (e.g., polyglycol ethers, fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, end-capped polyglycol ethers, mixed ethers, hydroxy mixed ethers, fatty acid polyglycol esters, and mixtures thereof. Preferred nonionic surfactants include fatty alcohol polyglycol ethers. More preferred nonionic surfactants include secondary alcohol ethoxylates, ethoxylated 2-ethylhexanol, ethoxylated seed oil, butanol-capped ethoxylated 2-ethylhexanol, and mixtures thereof. Most preferred nonionic surfactants include secondary alcohol ethoxylates.

[0016] The cationic surfactant includes a quaternary surface-active compound.Preferred cationic surfactants include a quaternary surface-active compound having at least one of an ammonium group, a sulfonium group, a phosphonium group, an iodonium group, and an arsonium group.More preferred cationic surfactants include at least one of dialkyldimethylammonium chloride and alkyldimethylbenzylammonium chloride.Even more preferred cationic surfactants include C 16-18 Dialkyldimethylammonium chloride, C 8-18 The most preferred cationic surfactants include at least one of alkyldimethylbenzylammonium chloride and dimethylditallow ammonium chloride.

[0017] Examples of amphoteric surfactants include betaine, amine oxide, alkylamidoalkylamine, alkyl-substituted amine oxide, acylated amino acid, derivatives of aliphatic quaternary ammonium compounds, and mixtures thereof. Preferred amphoteric surfactants include derivatives of aliphatic quaternary ammonium compounds. More preferred amphoteric surfactants include derivatives of aliphatic quaternary ammonium compounds having a long-chain group with 8 to 18 carbon atoms. Even more preferred amphoteric surfactants include C 12-14 The most preferred amphoteric surfactants include at least one of alkyl dimethylamine oxide, 3-(N,N-dimethyl-N-hexadecyl-ammonio)propane-1-sulfonate, and 3-(N,N-dimethyl-N-hexadecylammonio)-2-hydroxypropane-1-sulfonate. 12-14 At least one of alkyl dimethyl amine oxides may be mentioned.

[0018] Preferably, the method of making a liquid laundry detergent formulation of the present invention comprises selecting a wash booster of formula (I). More preferably, the method of making a liquid laundry detergent formulation of the present invention comprises selecting a wash booster of formula (I) wherein x is 3 to 10 (preferably 4 to 7; more preferably 4 to 6; most preferably 5), y is 5 to 20 (preferably 7 to 18; more preferably 8 to 17; most preferably 9 to 15), z is 5 to 30 (preferably 9 to 30; more preferably 10 to 28; most preferably 16 to 26), x + y + z ≥ 18 (preferably 20 to 60; more preferably 21 to 28; even more preferably 24 to 60; most preferably 35 to 60), x ≠ z, and each R is selected from the group consisting of C 7-9alkyl groups (preferably C8 alkyl groups; more preferably branched 2-ethylhexyl groups), wherein 75% or more by weight (preferably 80-100% by weight; more preferably 90-100% by weight; even more preferably 95-100% by weight; still more preferably 98-100% by weight; even more preferably 99-100% by weight; most preferably 99.5-100% by weight) of the R groups are branched, and the selected cleansing booster of formula (I) is selected based on its cleansing boosting properties. Even more preferably, the method of making the liquid laundry detergent formulation of the present invention comprises selecting a wash booster of formula (I) wherein x is 3 to 10 (preferably 4 to 7; more preferably 4 to 6; most preferably 5), y is 5 to 20 (preferably 7 to 18; more preferably 8 to 17; most preferably 9 to 15), z is 5 to 30 (preferably 9 to 30; more preferably 10 to 28; most preferably 16 to 26), x + y + z ≥ 18 (preferably 20 to 60; more preferably 21 to 28; even more preferably 24 to 60; most preferably 35 to 60), x ≠ z, and each R is selected from the group consisting of C 7-9and wherein the R groups are alkyl groups (preferably C8 alkyl groups; more preferably branched 2-ethylhexyl groups), and 75 wt.% or more (preferably 80-100 wt.%; more preferably 90-100 wt.%; even more preferably 95-100 wt.%; even more preferably 98-100 wt.%; even more preferably 99-100 wt.%; most preferably 99.5-100 wt.%) of the R groups are branched; and wherein the selected cleansing booster of formula (I) is selected based on its cleansing booster properties, and wherein the selected cleansing booster of formula (I) is provided in a sufficient amount such that the provided liquid laundry detergent comprises 0.01-25 wt.% (preferably 1-10 wt.%; more preferably 2.5-7.5 wt.%; most preferably 4-6 wt.%) of the selected cleansing booster of formula (I), based on the weight of the liquid laundry detergent formulation. Even more preferably, the method of making a liquid laundry detergent formulation of the present invention comprises selecting a cleaning booster of formula (I) wherein 80 to 100 wt. % (preferably 90 to 100 wt. %; more preferably 95 to 100 wt. %; even more preferably 98 to 100 wt. %; still more preferably 99 to 100 wt. %; most preferably 99.5 to 100 wt. %) of the cleaning booster of formula (I) is of formula (II): [ka] In the formula, x is 3 to 10 (preferably 4 to 7; more preferably 4 to 6; most preferably 5), y is 5 to 20 (preferably 7 to 18; more preferably 8 to 17; most preferably 9 to 15), z is 5 to 30 (preferably 9 to 30; more preferably 10 to 28; most preferably 16 to 26), and x + y + z ≥ 18 (preferably 20 to 60; more preferably 21 to 28; even more preferably 24 to 60; most preferably 3 5-60), x≠z, and the selected cleansing booster of Formula (I) is selected based on its cleansing booster properties, and the selected cleansing booster of Formula (I) is provided in a sufficient amount such that the provided liquid laundry detergent comprises 0.01-25 wt. % (preferably, 1-10 wt. %; more preferably, 2.5-7.5 wt. %; most preferably, 4-6 wt. %) of the selected cleansing booster of Formula (I), based on the weight of the liquid laundry detergent formulation.Most preferably, the method for preparing the liquid laundry detergent composition of the present invention is to select a cleaning booster of formula (I), wherein 80 to 100% by weight (preferably 90 to 100% by weight; more preferably 95 to 100% by weight; even more preferably 98 to 100% by weight; still more preferably 99 to 100% by weight; most preferably 99.5 to 100% by weight) of the cleaning booster of formula (I) is of formula (II), where x is 3 to 10 (preferably 4 to 7; more preferably 4 to 6; most preferably 5), y is 5 to 20 (preferably 7 to 18; more preferably 8 to 17; most preferably 9 to 15), z is 5 to 30 (preferably 9 to 30; more preferably 10 to 28; most preferably 16 to 26), x + y + z ≥ 18 (preferably 20 to 60; more preferably 21 to 28; even more preferably 24 to 60; most preferably 35 to 60), x ≠ z, y < z, the selected cleaning booster of formula (I) is selected based on its cleaning booster properties, and the selected cleaning booster of formula (I) is provided in a sufficient amount such that the provided liquid laundry detergent contains 0.01 to 25% by weight (preferably 1 to 10% by weight; more preferably 2.5 to 7.5% by weight; most preferably 4 to 6% by weight) of the cleaning booster of formula (I) based on the weight of the liquid laundry detergent composition, including the step of selection.

[0019] Preferably, the method of making the laundry detergent formulations of the present invention optionally includes the addition of solvents (e.g., ethanol, propylene glycol); builders (e.g., sodium bicarbonate, sodium carbonate, zeolites, sodium citrate, sodium tripolyphosphate, and aminocarboxylates (such as methylglycine diacetate, sodium salt or glutamic acid diacetate, sodium salt)); hydrotropes (e.g., sodium xylene sulfonate); foam control agents (e.g., fatty acids, polydimethylsiloxanes); enzymes (e.g., proteases, cellulases, lipases, amylases, mannanases); preservatives a fragrance (e.g., essential oil such as D-limonene); an optical brightener; a bleaching agent (e.g., sodium percarbonate, sodium perborate, sodium hypochlorite); a dye; an additive polymer (e.g., dispersant polymers such as acrylic acid homopolymers and copolymers of acrylic acid with maleic acid, sulfonated monomers and / or ethyl acrylate); and mixtures thereof; and adding the additive to the liquid carrier, the detersive surfactant, and the selected cleaning booster of formula (I) (preferably, formula (II)) to provide a liquid laundry detergent formulation.

[0020] Preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing an organic solvent and adding the organic solvent to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation. More preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing an organic solvent and adding the organic solvent to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 50 wt. % (preferably, 0.5 to 25 wt. %; more preferably, 1 to 15 wt. %; most preferably, 2.5 to 10 wt. %) of organic solvent, based on the weight of the liquid laundry detergent formulation. An even more preferred method of making a liquid laundry detergent formulation of the present invention further comprises providing an organic solvent and adding the organic solvent to the liquid carrier, the detersive surfactant, and the selected cleaning booster of Formula (I) (preferably, of Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 50 wt. % (preferably, 0.5 to 25 wt. %; more preferably, 1 to 15 wt. %; most preferably, 2.5 to 10 wt. %) of the organic solvent, based on the weight of the liquid laundry detergent formulation, wherein the organic solvent is selected from the group consisting of ethanol, propylene glycol, glycerol, 1,3-butanediol, 1,3-hexanediol, dipropylene glycol, and mixtures thereof. Most preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing an organic solvent and adding the organic solvent to the liquid carrier, the detersive surfactant, and the selected cleaning booster of Formula (I) (preferably, of Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 50 wt. % (preferably, 0.5 to 25 wt. %; more preferably, 1 to 15 wt. %; most preferably, 2.5 to 10 wt. %) of the organic solvent, based on the weight of the liquid laundry detergent formulation, and the organic solvent is a mixture of ethanol and propylene glycol.

[0021] Preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a hydrotrope and adding the hydrotrope to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation. More preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a hydrotrope and adding the hydrotrope to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 10 wt. % (preferably, 0.1 to 10 wt. %; more preferably, 0.2 to 8 wt. %; most preferably, 0.5 to 7.5 wt. %) of the hydrotrope, based on the weight of the liquid laundry detergent formulation. Even more preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a hydrotrope and adding the hydrotrope to a liquid carrier, a detersive surfactant, and a selected cleaning booster of Formula (I) (preferably, of Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 10 wt. % (preferably, 0.1 to 10 wt. %; more preferably, 0.2 to 8 wt. %; most preferably, 0.5 to 7.5 wt. %) of the hydrotrope, based on the weight of the liquid laundry detergent formulation, wherein the hydrotrope is selected from the group consisting of calcium, sodium, potassium, ammonium, and alkanolammonium salts of alkyl hydroxides, glycols, urea, monoethanolamine, diethanolamine, triethanolamine, xylene sulfonic acid, toluene sulfonic acid, ethylbenzene sulfonic acid, naphthalene sulfonic acid, and cumene sulfonic acid, salts thereof, and mixtures thereof.Even more preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a hydrotrope and adding the hydrotrope to a liquid carrier, a detersive surfactant, and a selected cleaning booster of Formula (I) (preferably, of Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 10 wt. % (preferably, 0.1 to 10 wt. %; more preferably, 0.2 to 8 wt. %; most preferably, 0.5 to 7.5 wt. %) of the hydrotrope, based on the weight of the liquid laundry detergent formulation, wherein the hydrotrope is selected from the group consisting of sodium toluene sulfonate, potassium toluene sulfonate, sodium xylene sulfonate, ammonium xylene sulfonate, potassium xylene sulfonate, calcium xylene sulfonate, sodium cumene sulfonate, ammonium cumene sulfonate, and mixtures thereof. Most preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a hydrotrope and adding the hydrotrope to a liquid carrier, a detersive surfactant, and a selected cleaning booster of Formula (I) (preferably, of Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 10 wt. % (preferably, 0.1 to 10 wt. %; more preferably, 0.2 to 8 wt. %; most preferably, 0.5 to 7.5 wt. %) of the hydrotrope, based on the weight of the liquid laundry detergent formulation, and the hydrotrope is sodium xylene sulfonate.

[0022] Preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a builder and adding the builder to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation. More preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a builder and adding the builder to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 30 wt. % (preferably, 1 to 20 wt. %; more preferably, 2.5 to 10 wt. %) of builder, based on the weight of the liquid laundry detergent formulation. Even more preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a builder and adding the builder to a liquid carrier, a detersive surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 30 wt. % (preferably, 1 to 25 wt. %; more preferably, 2.5 to 10 wt. %) of builder, based on the weight of the liquid laundry detergent formulation, the builder being an inorganic builder (e.g., tripolyphosphate, pyrophosphate), alkali metal carbonate, borate, bicarbonate, or the like. , hydroxides, zeolites, citrates (e.g., sodium citrate), polycarboxylates, monocarboxylates, aminotrismethylenephosphonic acid, salts of aminotrismethylenephosphonic acid, hydroxyethanediphosphonic acid, salts of hydroxyethanediphosphonic acid, diethylenetriaminepenta(methylenephosphonic acid), salts of diethylenetriaminepenta(methylenephosphonic acid), ethylenediaminetetraethylene-phosphonic acid, salts of ethylenediaminetetraethylene-phosphonic acid, oligomeric phosphonates, polymeric phosphonates, and mixtures thereof.Most preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a builder and adding the builder to a liquid carrier, a detersive surfactant, and a selected cleaning booster of Formula (I) (preferably, of Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0-30 wt. % (preferably, 1-25 wt. %; more preferably, 2.5-10 wt. %) of a builder, based on the weight of the liquid laundry detergent formulation, wherein the builder comprises sodium citrate.

[0023] Preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a structuring agent and adding the structuring agent to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation. More preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a structuring agent and adding the structuring agent to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 2 wt. % (preferably, 0.05 to 0.8 wt. %; more preferably, 0.1 to 0.4 wt. %) of structuring agent based on the weight of the liquid laundry detergent formulation. Most preferably, the method of making the liquid laundry detergent formulation of the present invention further comprises providing a structuring agent and adding the structuring agent to the liquid carrier, the detersive surfactant, and the selected cleaning booster of Formula (I) (preferably, of Formula (II)) to provide the liquid laundry detergent formulation, wherein the liquid laundry detergent formulation of the present invention further comprises 0 to 2 wt. % (preferably, 0.05 to 0.8 wt. %; more preferably, 0.1 to 0.4 wt. %) of a structuring agent, based on the weight of the liquid laundry detergent formulation, wherein the structuring agent is a non-polymeric crystalline hydroxy-functional material capable of forming a thread-like structuring system throughout the liquid laundry detergent formulation when crystallized in situ.

[0024] Preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a perfume and adding the perfume to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation. More preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a perfume and adding the perfume to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 10 wt. % (preferably, 0.001 to 5 wt. %; more preferably, 0.005 to 3 wt. %; most preferably, 0.01 to 2.5 wt. %) of perfume, based on the weight of the liquid laundry detergent formulation.

[0025] Preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a fabric softener and adding the fabric softener to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation. More preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a fabric softener and adding the fabric softener to a liquid carrier, a cleaning surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 10 wt % (preferably, 0.5 to 10 wt %) of fabric softener, based on the weight of the liquid laundry detergent formulation. Most preferably, the method of making a liquid laundry detergent formulation of the present invention further comprises providing a fabric softener and adding the fabric softener to a liquid carrier, a detersive surfactant, and a selected cleaning booster of Formula (I) (preferably, Formula (II)) to provide a liquid laundry detergent formulation, wherein the provided liquid laundry detergent formulation contains 0 to 10 wt % (preferably, 0.5 to 10 wt %) of fabric softener, based on the weight of the liquid laundry detergent formulation, and the fabric softener is a cationic coacervated polymer (e.g., cationic hydroxyl ethyl cellulose, polyquaternium polymer, and combinations thereof).

[0026] Preferably, the method of making the liquid laundry detergent formulation of the present invention further comprises adjusting the pH of the provided liquid laundry detergent formulation by adding a pH adjuster to the liquid carrier, the cleaning surfactant, and the selected cleaning booster of Formula (I) (preferably, Formula (II)). More preferably, the method of making the liquid laundry detergent formulation of the present invention further comprises adjusting the pH of the provided liquid laundry detergent formulation by adding a pH adjuster to the liquid carrier, the cleaning surfactant, and the selected cleaning booster of Formula (I) (preferably, Formula (II)), wherein the provided liquid laundry detergent formulation has a pH of 6 to 12.5 (preferably, 6.5 to 11; more preferably, 7.5 to 10). Bases for adjusting pH include mineral bases such as sodium hydroxide (including soda ash) and potassium hydroxide, sodium bicarbonate, sodium silicate, ammonium hydroxide, and organic bases (e.g., mono-, di-, or tri-ethanolamine, and 2-dimethylamino-2-methyl-1-propanol (DMAMP)). Acids for adjusting pH include mineral acids (eg, hydrochloric acid, phosphoric acid, and sulfuric acid) and organic acids (eg, acetic acid).

[0027] Preferably, the method of washing fabric articles of the present invention comprises providing soiled fabric articles (preferably, the soiled fabric articles are soiled with oil and gray soil, more preferably, the soiled fabric articles are soiled with sebum oil and clay soil) (preferably, the soiled fabric articles are selected from the group consisting of stained polyester fabric, stained polyester cotton blend fabric, stained cotton terry fabric, stained cotton interlock, and mixtures thereof, more preferably, the soiled fabric articles are at least one of stained polyester fabric and stained polyester cotton blend fabric), providing a liquid laundry detergent formulation of the present invention, providing wash water, and applying the wash water and the liquid laundry detergent formulation to the soiled fabrics to provide washed fabric articles, wherein the wash water is at a temperature of 35°C or less (preferably, 10-35°C; more preferably, 15-30°C; most preferably, 20-25°C). More preferably, the method for cleaning fabric articles of the present invention comprises cleaning soiled fabric articles (preferably, the soiled fabric articles are soiled with oil and grey soils, more preferably, the soiled fabric articles are soiled with sebum oil and clay soils) (preferably, the soiled fabric articles are selected from the group consisting of stained polyester fabric, stained polyester cotton blend fabric, stained cotton terry fabric, stained cotton interlock, and mixtures thereof, more preferably, the soiled fabric articles are selected from the group consisting of stained polyester fabric and stained polyester cotton blend fabric). providing a liquid laundry detergent formulation of the present invention; providing wash water; providing rinse water; applying the wash water and the liquid laundry detergent formulation to the soiled fabrics to provide washed fabric articles, wherein the wash water is at a temperature of 35°C or less (preferably 10-35°C; more preferably 15-30°C; most preferably 20-25°C); and then applying rinse water to the washed fabric articles to remove the liquid laundry detergent formulation from the washed fabric articles.

[0028] Some embodiments of the present invention are described in detail in the following examples. Synthetic S1: Cleaning Booster

[0029] A 9-liter reactor was charged with 2-ethylhexanol (780.0 g) and 85% potassium hydroxide pellets (10.81 g). The reactor contents were then purged with nitrogen. A vacuum was then applied to the reactor contents gradually over a period of 2 hours to 100 mm of mercury. A sample (15.8 g) of the reactor contents was removed from the reactor and the moisture content was measured by Karl Fisher titration. A moisture content of 411 parts per million (ppm) was observed. The reactor contents were then pressurized seven times with dry nitrogen to 110-139 kPa at 25°C to remove oxygen from the reactor headspace. The reactor contents were then heated to 130°C with stirring. Propylene oxide (1,660 g) was then charged to the reactor contents over a period of 4 hours. The reactor contents were then held at 130°C with stirring for an additional 2 hours. The reactor contents were then cooled to 60°C. A sample of the reactor contents (142.9 g) was removed. The reactor contents were then heated to 130°C, and ethylene oxide (2,070 g) was charged to the reactor over 4 hours. The reactor contents were then held at 130°C for an additional 2 hours with stirring. The reactor contents were then cooled to 60°C. A sample of the reactor contents (142.9 g) was removed. The reactor contents were then heated to 130°C, and propylene oxide (1,475 g) was charged to the reactor over 4 hours. The reactor contents were then held at 130°C for an additional 2 hours with stirring. The reactor contents were then cooled to 60°C. The reactor contents were then neutralized with acetic acid in a 10% aqueous solution to achieve a pH of 4 to 8 to provide the wash booster of Comparative Example C1. Synthetic S2-S14: Cleaning Booster

[0030] Synthesis S1 was repeated in Synthesis S2-S14, adjusting the amounts of propylene oxide (PO) and ethylene oxide (EO) feed to obtain the appropriate molar ratio of PO and EO in the resulting product wash booster. Each of the prepared product wash boosters had a structure represented by Formula (II): [ka] and had values ​​of x, y and z as shown in Table 1. [Table 1] Comparative Examples C1-C7 and Examples 1-8: Liquid Laundry Detergents

[0031] The liquid laundry detergent formulations used in the deposition tests in the subsequent examples were prepared to have the general formulation as set forth in Table 2, with the cleaning booster as shown in Table 3, and were prepared according to standard liquid laundry formulation preparation procedures. [Table 2] [Table 3] Primary cleaning performance test

[0032] The primary wash performance of the liquid laundry detergent formulations of Comparative Examples C1-C7 and Examples 1-8 was evaluated on a Launder-Ometer (SDL Atlas, Model M228AA) using a set test temperature of 22°C and a 30 minute wash cycle with twenty 1.2 liter canisters used for each run. The washed fabrics were then washed in an Eberbach E6000 reciprocating shaker at 100 ppm (2 / 1 Ca 2+ / Mg 2+The stained fabrics and soiled ballast used in the test were PCS-S-132 High Discrimination Sebum BEY Pigment and PCS-S-94 Sebum / Dust ASTM Stain from Testfabrics sewn into pre-shrunk cotton interlock fabric. The cotton interlock measured 5 x 5 cm. The stained swatches measured 2.5 x 3 cm. One 5 x 5 cm piece of SBL-CFT soiled ballast was added to each canister to provide a baseline soil for the wash solution. The water hardness used in the study was adjusted to 2:1 CaCO3 (Ca:CO3). 2+ :Mg 2+ The total surfactant concentration in the wash liquid was adjusted to 100,000 ppm (molar ratio) and checked and confirmed by EDTA titration. Reflectance measurement and Stain Removal Index (SRI)

[0033] ASTM method D4265-14 was used to determine the soil removal index (SRI) of each of the liquid laundry detergent formulations evaluated in the Primary Cleaning Performance Test. The average SRI obtained from eight swatches per condition (two swatches per pot, four pots) is provided in Table 4.

[0034] Stained fabric L * , a * and b * The values ​​of L for unwashed, unstained polycotton fabric were measured before and after washing using a Mach 5 spectrophotometer from Colour Consult. * , a * and b * The value of was determined in the SRI calculation as follows:

number

[0035] The liquid laundry detergent formulations used in the cleaning tests of the examples that follow were prepared to have the general formulation as set forth in Table 5, with the cleaning booster polymers as shown in Table 6, and were prepared according to standard liquid laundry formulation preparation procedures. [Table 5] [Table 6] Prevention of redeposition

[0036] The anti-redeposition performance of the liquid laundry detergent formulations of Comparative Examples C8-C10 and Example 9 was evaluated using a Terg-o-tometer Model 7243ES agitated at 90 cycles per minute under the conditions shown in Table 7. [Table 7]

[0037] The fabrics were washed for five consecutive cycles and the whiteness index was measured at 460 nm using a HunderLab UltraScan VIS colorimeter to determine the whiteness of the fabrics according to ASTM E313. The whiteness index of clean, unwashed fabrics was used as a positive control. The change in whiteness index relative to the positive control for each of the liquid laundry formulations is provided in Table 8. [Table 8]

Claims

1. 1. A method of making a liquid laundry detergent formulation, comprising: Providing a liquid carrier; providing a cleaning surfactant; Formula (I): 【Chemical 1】 wherein x is 3 to 10, y is 5 to 20, z is 5 to 30, x + y + z ≥ 18, x ≠ z, and each R is C ７－９ alkyl groups, and 75% by weight or more of the R groups are branched. wherein said selected wash booster of formula (I) is selected based on its wash booster properties; providing said selected cleaning booster of formula (I); combining said liquid carrier, said detersive surfactant, and said selected detersive booster of formula (I) to provide said liquid laundry detergent formulation.

2. The liquid laundry detergent formulation provided comprises: 15 to 97.99 wt. % of the liquid carrier, based on the weight of the liquid laundry detergent formulation; 2 to 60 wt. % of said detersive surfactant, based on the weight of said liquid laundry detergent formulation; 10. The method of claim 1, comprising: 0.01 to 25% by weight of said selected cleaning booster of formula (I), based on the weight of said liquid laundry detergent formulation.

3. The method of claim 1 , wherein the liquid carrier provided comprises water.

4. 80 to 100% by weight of the selected cleaning booster of formula (I) is a compound of formula (II): 【Chemistry 2】 (wherein x is 4 to 7, y is 7 to 18, and z is 9 to 30) The method of claim 1, wherein

5. 5. The method of claim 4, wherein 98 to 100 weight percent of the selected cleaning booster of formula (I) is of formula (II), wherein x is 4 to 6, y is 8 to 17, and z is 10 to 28.

6. 6. The method of claim 5, wherein 99.5 to 100 weight percent of the selected cleaning booster of formula (I) is of formula (II), wherein x is 5, y is 9 to 15, and z is 16 to 26.

7. The method of claim 6 wherein the provided cleansing surfactant comprises an anionic surfactant.

8. 8. The method of claim 7, wherein the cleansing surfactant provided also includes a non-ionic surfactant.

9. Providing a solvent; Providing a hydrotrope; providing a builder; 10. The method of claim 8, further comprising adding the solvent, the hydrotrope, and the builder to the liquid carrier, the detersive surfactant, and the selected cleaning booster of formula (II) to provide the liquid laundry detergent formulation.

Images