Detergent composition for textile product

Abstract

To provide a detergent composition for textile products excellent in performance on cleaning cosmetic dirt deposited on the textile products and a textile product cleaning method.SOLUTION: A detergent composition for textile products includes the following component (a), component (b), component (c), and water. A mass ratio (b) / (c) of a component (b) content to a component (c) content is 0.05 or more and 20 or less: the component (a): a surfactant [where the component (b) and the component (c) are excluded]; the component (b): fatty acid alkanolamide; and the component (c): one or more selected from (c1) alkyl glyceryl ether, (c2) alcohol having a carbon number of 12 or more, and (c3) fatty acid and a salt thereof having a carbon number of 12 or more.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a detergent composition for textile products and a method for cleaning textile products. [Background technology]

[0002] With the spread of the novel coronavirus disease (COVID-19), lifestyles have changed and wearing masks has become mainstream. Due to a shortage of disposable nonwoven masks, the habit of washing and reusing cloth masks has become widespread. Cosmetics such as lipstick and foundation tend to adhere to masks. Oil-based cosmetics containing polymeric compounds such as wax and silicone, such as lipstick and foundation, are very difficult to remove when they adhere to textile products, and there is an increasing need for consumers to thoroughly remove such cosmetic stains. In addition, when foundation is applied to the back of the neck so that it matches the color of the face, the foundation will adhere to the collar of a shirt or blouse, etc. This stain is likely to remain as a foundation stain on the clothing. The easiest way to remove cosmetic stains from textile products such as clothing and cloth masks is to wash them using an automatic washing machine, but it can be difficult to remove the stains sufficiently. In addition, soaking the products in water to improve the cleaning effect of cosmetic stains takes time and effort.

[0003] Patent Document 1 discloses a cleaning composition containing about 1% to about 70% by mass of a surfactant and about 0.1% to about 10% of a specific non-alkoxylated ester amine and / or a salt thereof. Patent Document 2 discloses a liquid detergent composition that is substantially transparent and homogeneous, and contains (A) 15 to 70 mass % of a terpene hydrocarbon, (B) 20 to 85 mass % of a nonionic surfactant, and (C) 0 to 20 mass % of water. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2020-526620 [Patent Document 2] JP 2001-247899 A Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, cosmetics have been formulated with enhanced durability to prevent makeup from coming off, and when makeup stains adhere to textile products such as clothing and cloth masks, it is difficult to clean off the stains. The present invention provides a detergent composition for textile products, which has excellent detergency for cosmetic stains adhering to textile products, and a method for cleaning textile products. [Means for solving the problem]

[0006] The present invention relates to a detergent composition for fabric products comprising the following components (a), (b), (c) and water, in which the mass ratio (b) / (c) of the content of component (b) to the content of component (c) is 0.05 or more and 20 or less: Component (a): Surfactant (excluding components (b) and (c)) (b) Component: fatty acid alkanolamide Component (c): one or more selected from the following components (c1), (c2), and (c3): (c1) component: alkyl glyceryl ether (c2) Component: Alcohol with 12 or more carbon atoms (c3) component: fatty acid having 12 or more carbon atoms or its salt

[0007] The present invention also relates to a method for cleaning textile products, which comprises contacting the above-mentioned detergent composition for textile products with the textile products. Effect of the Invention

[0008] According to the present invention, there are provided a detergent composition for textile products and a method for cleaning textile products, which have excellent detergency for cosmetic stains adhering to textile products. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The reason why the detergent composition for textile products of the present invention has excellent detergency against cosmetic stains adhering to textile products is not entirely clear, but is presumed to be as follows. Cosmetic stains are, for example, composite stains of pigments and polymeric compounds such as wax and silicone, and further contain emulsifiers and stabilizers such as polyether-modified silicone. Component (b) is presumed to contribute to improving the cleanability of cosmetic stains on textile products by acting on emulsifiers on the surface of the cosmetic stains on textile products and inverting the continuous phase of the stain from the wax or silicone oil layer to a water layer. Component (c) on the other hand, is presumed to contribute to improving the cleanability of cosmetic stains on textile products by penetrating into the cosmetic stains on textile products and acting on emulsifiers inside the stain and inverting the continuous phase of the stain from the wax or silicone oil layer to a water layer. It is presumed that the synergistic effect of components (b) and (c) makes cosmetic stains easier to remove from textile products. The mechanism of action of the detergent composition for fabric products of the present invention is not limited to the above.

[0010] <Cleaning composition for textile products> The detergent composition for textile products of the present invention contains the following components (a), (b), (c) and water, and the mass ratio (b) / (c) of the content of the component (b) to the content of the component (c) is 0.05 or more and 20 or less. Component (a): Surfactant (excluding components (b) and (c)) (b) Component: fatty acid alkanolamide Component (c): one or more selected from the following components (c1), (c2), and (c3): (c1) component: alkyl glyceryl ether (c2) Component: Alcohol with 12 or more carbon atoms (c3) component: fatty acid having 12 or more carbon atoms or its salt

[0011] <Component (a)> Component (a) is a surfactant [excluding components (b) and (c)]. Component (a) may be one or more surfactants selected from (a1) nonionic surfactants [excluding components (b) and (c)] [hereinafter referred to as component (a1)], (a2) anionic surfactants [excluding component (c)] [hereinafter referred to as component (a2)], (a3) ​​cationic surfactants [hereinafter referred to as component (a3)], and (a4) amphoteric surfactants [hereinafter referred to as component (a4)]. From the viewpoint of improving cleaning properties, the component (a) is preferably one or more surfactants selected from the components (a1) and (a2).

[0012] <Component (a1)> From the viewpoint of improving cleaning properties, examples of the nonionic surfactant of component (a1) include polyoxyalkylene monoalkyl or alkenyl ethers, alkyl (poly)glycosides (glycoside-type nonionic surfactants), sorbitan-based nonionic surfactants, compounds in which alkylene oxide is added between the ester bonds of long-chain fatty acid alkyl esters, fatty acid monoglycerides, and sucrose fatty acid esters.

[0013] The nonionic surfactant of the component (a1) preferably contains one or more compounds selected from the compounds represented by the following general formula (a1-1) [hereinafter referred to as component (a1-1)]. R 1a (CO) m O-(AO) n -R 2a (a1-1) [In formula (a1-1), R 1a is an aliphatic hydrocarbon group having 10 to 18 carbon atoms, R 2a is a hydrogen atom or a methyl group, CO is a carbonyl group, m is a number of 0 or 1, AO groups are one or more alkyleneoxy groups selected from an ethyleneoxy group and a propyleneoxy group, and n is the average number of moles added, which is a number of 1 to 20.

[0014] In general formula (a1-1), R 1ais an aliphatic hydrocarbon group having 10 to 18 carbon atoms. From the viewpoint of improving cleaning performance, R 1a has 10 or more, preferably 11 or more, and from the viewpoint of improving cleaning properties, has 18 or less, preferably 16 or less, more preferably 14 or less. R 1a The aliphatic hydrocarbon group is preferably a group selected from an alkyl group and an alkenyl group, more preferably an alkyl group. R 1a The aliphatic hydrocarbon group may be a straight-chain or branched-chain aliphatic hydrocarbon, and from the viewpoint of improving cleaning properties, a straight-chain aliphatic hydrocarbon is preferred. In formula (a1-1), m is preferably 0. In general formula (a1-1), R 2a is preferably a hydrogen atom.

[0015] In the general formula (a1-1), the AO group is one or more alkyleneoxy groups selected from an ethyleneoxy group and a propyleneoxy group. When the AO group contains an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be a block bond or a random bond. The order of the bonds between the ethyleneoxy group and the propyleneoxy group does not matter. From the viewpoint of improving cleaning properties, the AO group is preferably a group containing an ethyleneoxy group.

[0016] In the general formula (a1-1), n ​​is the average number of moles of AO groups added, and is a number from 1 to 20. The larger the number of n, the higher the HLB value, and the smaller the number of n, the lower the HLB value. From the viewpoint of improving the detergency, n is 1 or more, preferably 2 or more, more preferably 4 or more, even more preferably 6 or more, and even more preferably 8 or more, and from the viewpoint of improving the detergency, it is 20 or less, preferably 18 or less, more preferably 16 or less, even more preferably 14 or less, and even more preferably 12 or less.

[0017] The (a1) component is preferably a polyoxyethylene alkyl ether having an aliphatic hydrocarbon group having from 10 to 18 carbon atoms, and an average number of moles of ethyleneoxy groups (hereinafter sometimes referred to as EO groups) added is 1 or more, preferably 2 or more, more preferably 4 or more, even more preferably 6 or more, still more preferably 8 or more, and 20 or less, preferably 18 or less, more preferably 16 or less, even more preferably 14 or less, and still more preferably 12 or less. From the viewpoint of cleaning properties, the (a1) component is preferably selected from the group consisting of R 1a is an aliphatic hydrocarbon group having 10 to 18 carbon atoms, and R 2a is a hydrogen atom, the AO group is an ethyleneoxy group, m is 0, and the average number of moles added, n, is 1 or more, preferably 2 or more, more preferably 4 or more, even more preferably 6 or more, still more preferably 8 or more, and 20 or less, preferably 18 or less, more preferably 16 or less, even more preferably 14 or less, and still more preferably 12 or less.

[0018] <(a2) component> From the viewpoint of improving cleaning properties, the anionic surfactant of the component (a2) preferably has an aliphatic hydrocarbon group having from 10 to 18 carbon atoms, and is preferably an anionic surfactant containing one or more selected from alkylarylsulfonic acid type surfactants, sulfate ester type surfactants, alkanesulfonic acid type surfactants, olefinsulfonic acid type surfactants, sulfosuccinic acid alkyl ester type surfactants, and sulfofatty acid ester type surfactants, more preferably an anionic surfactant containing one or more selected from alkylarylsulfonic acid type surfactants, sulfate ester type surfactants, and sulfosuccinic acid alkyl ester type surfactants, and even more preferably an anionic surfactant containing one or more selected from sulfate ester type surfactants and sulfosuccinic acid alkyl ester type surfactants. In addition, when the anionic surfactant of component (a2) is a salt, examples of the salt of component (a2) include inorganic salts such as sodium salt, potassium salt, ammonium salt, magnesium salt, etc., and organic salts such as monoethanolamine salt, diethanolamine salt, triethanolamine salt, morpholine salt, etc. The salt of component (a2) is preferably an inorganic salt selected from alkali metal salts such as sodium salt, potassium salt, etc., and alkaline earth metal salts such as magnesium salt, etc., more preferably an alkali metal salt, and even more preferably a sodium salt. The same applies to the specific examples of anionic surfactants described below.

[0019] The component (a2) may be one or more compounds selected from the group consisting of compounds (a2-1) represented by the following general formula (a2-1), compounds (a2-2) represented by the following general formula (a2-2), and compounds (a2-3) represented by the following general formula (a2-3). The component (a2) preferably contains one or more compounds selected from the group consisting of compounds represented by the following general formula (a2-1). R 3a -O-(AO) n -SO3M (a2-1) [In formula (a2-1), R 3a is an aliphatic hydrocarbon group having 10 to 18 carbon atoms, the AO group is one or more alkyleneoxy groups selected from an ethyleneoxy group and a propyleneoxy group, n is a number of 0 to 20, and M is a cation. R 4a -B-SO3M (a2-2) [In formula (a2-2), R 4a represents an alkyl group having 9 to 21 carbon atoms, B represents a benzene ring, and R bonded to the carbon atom of B 4a The carbon atom of is a secondary carbon atom, and M represents a cation. 4a The sulfonic acid group is bonded at the para position. R 5a -CH(SO3M)COOR 6a (a2-3) [In formula (a2-3), R 5a represents an alkyl group having 6 to 20 carbon atoms, and R 6arepresents an alkyl group having 1 to 6 carbon atoms, and M represents a cation.

[0020] In general formula (a2-1), R 3a is preferably 10 or more, more preferably 11 or more, even more preferably 12 or more, and is preferably 18 or less, more preferably 16 or less, even more preferably 14 or less. 3a is a straight-chain or branched-chain aliphatic hydrocarbon, preferably a straight-chain aliphatic hydrocarbon, more preferably a straight-chain alkyl group.

[0021] In the general formula (a2-1), the AO group is one or more alkyleneoxy groups selected from an ethyleneoxy group and a propyleneoxy group. When the AO group contains an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be in a block bond or a random bond. From the viewpoint of improving cleaning properties, the AO group is preferably a group containing an ethyleneoxy group.

[0022] In general formula (a2-1), n ​​is the average number of moles of AO groups added and is a number from 0 to 20. From the viewpoint of improving cleansing ability, n is preferably 1 or more, more preferably 2 or more, and from the viewpoint of improving cleansing ability, n is 20 or less, preferably 16 or less, more preferably 12 or less, even more preferably 8 or less, and still more preferably 4 or less.

[0023] In general formula (a2-1), when AO contains a propyleneoxy group, the average number of moles of the propyleneoxy group added is preferably 4 or less, more preferably 3 or less, and preferably 0 or more. In general formula (a2-1), the average number of moles of the propyleneoxy group added may be 0. In general formula (a2-1), when AO contains an ethyleneoxy group, the average number of moles of the ethyleneoxy group added is preferably 0.5 or more, more preferably 1 or more, even more preferably 2 or more, and preferably 10 or less, more preferably 5 or less, even more preferably 4 or less.

[0024] In the general formula (a2-1), M is preferably a hydrogen atom, an alkali metal such as sodium or potassium, an alkaline earth metal (1 / 2 atom) such as magnesium or calcium, or an organic ammonium. The organic ammonium may be a salt with an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal such as sodium or potassium, or an alkanolammonium such as monoethanolammonium or diethanolammonium, and more preferably sodium. In addition, M in general formula (a2-2) and general formula (a2-3) is the same as M in general formula (a2-1).

[0025] As the (a2-1) component, alkyl sulfate sodium salt or (polyoxypropylene) polyoxyethylene alkyl ether sulfate sodium salt in which the alkyl group has 12 to 14 carbon atoms, the average number of moles of propoxy groups added is 0 to 4, and the average number of moles of ethyleneoxy groups added is 0 to 4 is preferred. That is, the (a2) component is preferably a compound represented by the general formula (a2-1), 3a is an alkyl group having 12 to 14 carbon atoms, AO is an ethyleneoxy group and / or a propyleneoxy group, n is 0 or more and 8 or less, further 4 or less, and M is sodium.

[0026] In general formula (a2-2), R 4a is an alkyl group having 9 or more carbon atoms, preferably 10 or more, more preferably 11 or more, and preferably 18 or less, more preferably 16 or less, and even more preferably 14 or less. In the general formula (a2-2), M is preferably a hydrogen atom, an alkali metal such as sodium or potassium, an alkaline earth metal (1 / 2 atom) such as magnesium or calcium, or an organic ammonium. The organic ammonium salt may be a salt with an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal such as sodium or potassium, or an alkanolammonium such as monoethanolammonium or diethanolammonium, more preferably sodium.

[0027] As the component (a2-2), p-alkylbenzenesulfonate salts in which the alkyl group has 11 or more and 14 or less carbon atoms are preferred, and sodium p-alkylbenzenesulfonate salts in which the alkyl group has 11 or more and 14 or less carbon atoms are more preferred. That is, the component (a2-2) is represented by the general formula (a2-2), R 4a is an alkyl group having 11 to 14 carbon atoms, and M is sodium.

[0028] In general formula (a2-3), R 5a is preferably an alkyl group having 8 or more carbon atoms, more preferably 10 or more carbon atoms, and preferably 18 or less, more preferably 16 or less carbon atoms. In general formula (a2-3), R 6a is an alkyl group having 1 or more carbon atoms and preferably 5 or less, more preferably 4 or less.

[0029] As the component (a2-3), in the general formula (a2-3), R 5a Alkyl groups with 11 to 14 carbon atoms, R 6a is a methyl group.

[0030] As the component (a2) of the present invention, from the viewpoint of improving cleaning properties, one or more anionic surfactants selected from the component (a2-1) and the component (a2-2) are preferred, and one or more anionic surfactants selected from the component (a2-1) are more preferred.

[0031] <(a3) component> The cationic surfactant of the component (a3) ​​may be a cationic surfactant that is a tertiary amine salt or a cationic surfactant that is a quaternary ammonium salt. Specifically, the component (a3) ​​may be one or more selected from dialkyldimethylammonium salts, dialkylmethylethylammonium salts, alkyltrimethylammonium salts, and alkyldimethylethylammonium salts.

[0032] <(a4) component> Examples of the amphoteric surfactant of the component (a4) include betaine-based amphoteric surfactants and amine oxide-type amphoteric surfactants.Specifically, examples of the component (a4) include N-alkanoylaminopropyl-N,N-dimethylamine oxide, N-alkyl-N,N-dimethylamine oxide, N-alkanoylaminopropyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, and N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine.In these, the alkanoyl group is, for example, lauroyl or myristyl. In these, the alkyl group is, for example, a lauryl group or a myristyl group.

[0033] From the viewpoint of improving cleaning properties, the component (a) is preferably a surfactant containing one or more selected from the component (a1) and the component (a2), and more preferably a surfactant containing one or more selected from the component (a1-1) and the component (a2-1).

[0034] <(b) Component> The component (b) is a fatty acid alkanolamide. From the viewpoint of improving cleaning properties, the component (b) is preferably a fatty acid alkanolamide having a fatty acid moiety with 8 to 18 carbon atoms.

[0035] The hydrocarbon group of the fatty acid portion is a hydrocarbon group containing a carbon atom of a carboxy group in the raw material fatty acid of the fatty acid alkanolamide, and is preferably a linear or branched alkyl group or a linear or branched alkenyl group, more preferably a linear or branched alkyl group, and even more preferably a linear alkyl group.

[0036] The number of carbon atoms in the fatty acid portion is the number of carbon atoms including the carbon atom of the carboxy group in the raw material fatty acid of the fatty acid alkanolamide, and from the viewpoint of improving cleaning properties, it is preferably 8 or more, more preferably 10 or more, even more preferably 12 or more, and preferably 18 or less, more preferably 16 or less, even more preferably 14 or less.

[0037] Examples of fatty acid alkanolamides include (b1) fatty acid monoalkanolamides [hereinafter referred to as component (b1)] and (b2) fatty acid dialkanolamides [hereinafter referred to as component (b2)]. Examples of component (b1) include fatty acid monoethanolamides, fatty acid methyl monoethanolamides, fatty acid ethyl monoethanolamides, fatty acid propyl monoethanolamides, etc., and examples of component (b2) include fatty acid methanol ethanolamides, fatty acid diethanolamides, etc. From the viewpoint of improving cleaning properties, component (b) is preferably at least one selected from fatty acid methyl monoethanolamides and fatty acid diethanolamides.

[0038] Examples of component (b) include coconut oil fatty acid N-methylethanolamide, oleic acid diethanolamide, stearic acid diethanolamide, palm kernel oil fatty acid diethanolamide compounds having a fatty acid moiety with 10 to 18 carbon atoms, coconut oil fatty acid diethanolamide, myristic acid diethanolamide, and lauric acid diethanolamide, and two or more of these may be used in combination. From the viewpoint of improving cleaning properties, the component (b) is preferably one or more selected from coconut oil fatty acid N-methylethanolamide, oleic acid diethanolamide, palm kernel oil fatty acid diethanolamide, and coconut oil fatty acid diethanolamide, and more preferably one or more selected from coconut oil fatty acid N-methylethanolamide, oleic acid diethanolamide, and palm kernel oil fatty acid diethanolamide.

[0039] The (b) component is obtained by reacting a higher fatty acid with an alkanolamine, but by-products other than fatty acid alkanolamides are simultaneously produced. Examples of the by-products include fatty acid alkanolamide fatty acid monoesters and fatty acid alkanolamide fatty acid diesters obtained by dehydration condensation of fatty acid alkanolamides and fatty acids, as well as fatty acid alkanolamine monoesters and fatty acid alkanolamine diesters obtained by dehydration condensation of alkanolamines and fatty acids. The (b) component of the present invention may contain a trace amount of the above-mentioned by-products as long as the effects of the present invention are not impaired. From the viewpoint of improving cleaning properties, the content of the by-products in the (b) component is preferably 10 parts by mass or less, more preferably 7 parts by mass or less, and even more preferably 5 parts by mass or less in 100 parts by mass of the (b) component.

[0040] <(c) component> The component (c) is at least one selected from (c1) an alkyl glyceryl ether, (c2) an alcohol having 12 or more carbon atoms, and (c3) a fatty acid having 12 or more carbon atoms and a salt thereof.

[0041] <(c1) component> The component (c1) is an alkyl glyceryl ether. The alkyl glyceryl ether of the component (c1) is preferably an alkyl glyceryl ether having an alkyl group having 4 to 10 carbon atoms. From the viewpoint of permeability into the oil layer, the component (c1) is preferably at least one compound selected from the compounds represented by the following general formula (c1). R 1c -O-(Gly) r -H (c1) [In the formula, R 1c represents a linear or branched alkyl group having 4 to 10 carbon atoms, Gly represents a structural unit derived from glycerin, preferably a residue obtained by removing one hydroxyl group and one hydrogen atom from glycerin, and r represents a number of 1 to 4.

[0042] In general formula (c1), R 1cFrom the viewpoint of the permeability into the oil layer, R is preferably an alkyl group having 4 or more carbon atoms, more preferably 6 or more carbon atoms, and even more preferably 8 or more carbon atoms, and from the viewpoint of the permeability into the oil layer, R is preferably an alkyl group having 10 or less carbon atoms. As the alkyl group, a straight-chain alkyl group such as a hexyl group, a heptyl group, an octyl group, a nonyl group, or a decyl group can be used, but in the present invention, from the viewpoint of the permeability into the oil layer, an alkyl group having a branched chain is preferred, and R 1c Specific examples of the branched alkyl group include groups selected from the group consisting of 2-ethylhexyl, sec-octyl, isononyl and isodecyl, more preferably 2-ethylhexyl or isodecyl, and even more preferably 2-ethylhexyl.

[0043] In the general formula (c1), from the viewpoint of permeability into the oil layer, r is preferably 1 or more and preferably 2 or less. From the viewpoint of permeability into the oil layer, a compound in which r is 1 is more preferred. From the viewpoint of permeability into the oil layer, R 1c is 2-ethylhexyl and r is 1. The structure represented by Gly is either a structure represented by -CH2CH(OH)CH2-O- in which the 1st and 3rd hydroxyl groups of glycerin are bonded, or a structure represented by -CH(CH2OH)CH2-O- in which the 1st and 2nd hydroxyl groups of glycerin are bonded, and varies depending on the catalyst and reaction conditions.

[0044] To obtain the compound of the general formula (c1), for example, an alcohol having 4 to 10 carbon atoms is used as R 1c A method of producing the glyceryl ether can be used in which an alkyl alcohol represented by -OH is reacted with an epoxy compound such as epihalohydrin or glycidol using an acid catalyst such as BF3 or an aluminum catalyst. For example, when 2-ethylhexanol is used, the resulting 2-ethylhexyl glyceryl ether is a mixture that may contain multiple products, as described in JP-A-2001-49291.

[0045] From the viewpoint of penetrability into the oil layer, the component (c1) is preferably one or more selected from 2-ethylhexyl glyceryl ether, octyl glyceryl ether, decyl glyceryl ether, and isodecyl glyceryl ether, and more preferably 2-ethylhexyl glyceryl ether.

[0046] <(c2) component> The (c2) component is an alcohol having 12 or more carbon atoms. The (c2) component is preferably an alcohol having 12 to 22 carbon atoms. From the viewpoint of penetrability into the oil layer, the (c2) component is an alcohol having 12 or more carbon atoms, preferably 14 or more, more preferably 16 or more, and from the viewpoint of blending suitability, preferably 22 or less, more preferably 20 or less, and even more preferably 18 or less. The number of carbon atoms of the alcohol of the (c2) component described below is also preferably within the above range.

[0047] Examples of the component (c2) include primary alcohols and secondary alcohols, with primary alcohols being preferred from the viewpoint of improving cleaning properties. From the viewpoint of improving cleaning properties, the component (c2) is preferably an aliphatic alcohol. Examples of the component (c2) include linear alcohols and branched alcohols, and from the viewpoint of improving cleaning properties, linear alcohols are preferred. From the viewpoint of penetrability into the oil layer, the component (c2) is preferably a monohydric alcohol. Examples of the component (c2) include saturated and unsaturated alcohols having the above carbon number, and from the viewpoint of permeability into the oil layer, saturated alcohols are preferred.

[0048] Examples of the component (c2) include dodecanol, tetradecanol, hexadecanol, oleyl alcohol, etc. From the viewpoint of improving cleaning properties, one or more selected from 1-decanol, 1-dodecanol, 1-tetradecanol, 1-hexadecanol, and oleyl alcohol are preferred, one or more selected from 1-dodecanol, 1-tetradecanol, and oleyl alcohol are more preferred, and one or more selected from 1-dodecanol and oleyl alcohol are even more preferred.

[0049] <(c3) component> The component (c3) is a fatty acid or a salt thereof having 12 or more carbon atoms. The component (c3) is preferably a fatty acid or a salt thereof having 12 or more and 22 or less carbon atoms. From the viewpoint of penetrability into the oil layer, the component (c3) is a fatty acid or a salt thereof having 12 or more carbon atoms, preferably 14 or more, more preferably 16 or more, and from the viewpoint of blending suitability, preferably 22 or less, more preferably 20 or less, and even more preferably 18 or less. The number of carbon atoms of the fatty acid of the component (c3) below is also preferably within the above range.

[0050] The fatty acid of component (c3) may be either a straight-chain fatty acid or a branched-chain fatty acid, with straight-chain fatty acid being preferred. The fatty acid of the component (c3) may be either a saturated fatty acid or an unsaturated fatty acid, with saturated fatty acids being preferred. Examples of salts of component (c3) include alkali metal salts such as sodium salts and potassium salts, alkaline earth metal salts such as magnesium salts, and organic amine salts such as ammonium salts, monoethanolamine salts, diethanolamine salts, and triethanolamine salts. Preferred are alkali metal salts, and more preferred are sodium salts.

[0051] <Composition and other ingredients> The detergent composition for textile products of the present invention contains component (a) in an amount of preferably 5.0% by mass or more, more preferably 10% by mass or more, and even more preferably 15% by mass or more from the viewpoint of improving cleaning performance, and in an amount of preferably 40% by mass or less, more preferably 35% by mass or less, even more preferably 30% by mass or less, and even more preferably 25% by mass or less from the viewpoint of blendability. The detergent composition containing the component (a) in the above range can be suitably used as a composition to be contacted with a textile product without dilution. The detergent composition can also be concentrated in advance and then diluted so that the content of the component (a) at the time of use falls within the above range before application to the textile product. The same applies to the contents of the components (b), (c), and (c1) to (c3) below. In the present invention, when the component (a) contains an anionic surfactant (a2), the mass of the component (a2) is calculated as the mass of the sodium salt, and when the component (a) contains a cationic surfactant (a3), the mass of the component (c3) is calculated as the mass of the chloride salt.

[0052] In the detergent composition for fabric products of the present invention, the total content of the components (a1) and (a2) is preferably within the range indicated for the content of the component (a) above. In addition, in the detergent composition for fabric products of the present invention, the total content of the components (a1-1) and (a2-1) is more preferably within the range indicated for the content of the component (a) above.

[0053] The detergent composition for textile products of the present invention contains, from the viewpoint of improving cleaning ability, preferably 0.05% by mass or more of component (b), more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, still more preferably 1.5% by mass or more, and from the viewpoint of blending suitability, preferably 5.0% by mass or less, more preferably 4.0% by mass or less, even more preferably 3.0% by mass or less, and still more preferably 2.5% by mass or less.

[0054] The detergent composition for textile products of the present invention contains, from the viewpoint of improving cleaning performance, preferably 0.05% by mass or more of component (c), more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, still more preferably 1.5% by mass or more, and from the viewpoint of blending suitability, preferably 5.0% by mass or less, more preferably 4.0% by mass or less, even more preferably 3.0% by mass or less, and still more preferably 2.5% by mass or less. In addition, in the specification regarding the mass of component (c) of the present invention, when component (c) contains component (c3) a fatty acid or a salt thereof having 12 or more carbon atoms, the mass of component (c3) is calculated as the mass of the fatty acid.

[0055] In the detergent composition for textile products of the present invention, the mass ratio (b) / (c) of the content of the component (b) to the content of the component (c) is, from the viewpoint of improving cleaning performance, 0.05 or more, more preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, still more preferably 0.5 or more, still more preferably 1.0 or more, still more preferably 1.2 or more, still more preferably 1.5 or more, and from the viewpoint of improving cleaning performance, 20 or less, preferably 15 or less, more preferably 10 or less, still more preferably 5.0 or less, and still more preferably 3 or less. When the component (b) contains a fatty acid monoalkanolamide as the component (b1), the mass ratio (b1) / (c) of the content of the component (b1) to the content of the component (c) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, still more preferably 0.4 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 4 or less, even more preferably 3 or less. When the component (b) contains a fatty acid dialkanolamide as the component (b2), the mass ratio (b2) / (c) of the content of the component (b2) to the content of the component (c) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, still more preferably 0.4 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 4 or less, even more preferably 3 or less.

[0056] The detergent composition for textile products of the present invention contains the component (c1) in an amount of preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, still more preferably 1.5% by mass or more from the viewpoint of improving cleaning ability, and in an amount of preferably 5.0% by mass or less, more preferably 4.0% by mass or less, even more preferably 3.0% by mass or less, still more preferably 2.5% by mass or less from the viewpoint of blending suitability.

[0057] In the detergent composition for textile products of the present invention, the mass ratio (b) / (c1) of the content of the component (b) to the content of the component (c1) is, from the viewpoint of improving cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.4 or more, and from the viewpoint of improving cleaning performance, 20 or less, preferably 15 or less, more preferably 10 or less, even more preferably 5.0 or less, still more preferably 4.0 or less, and even more preferably 3.0 or less. When the component (b) contains a fatty acid monoalkanolamide as the component (b1), the mass ratio (b1) / (c1) of the content of the component (b1) to the content of the component (c1) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.4 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 4 or less, even more preferably 3 or less. When the component (b) contains a fatty acid dialkanolamide as the component (b2), the mass ratio (b2) / (c1) of the content of the component (b2) to the content of the component (c1) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.4 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 4 or less, even more preferably 3 or less.

[0058] The detergent composition for textile products of the present invention contains the component (c2) in an amount of preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.7% by mass or more, still more preferably 1.2% by mass or more, and still more preferably 1.4% by mass or more from the viewpoint of improving cleaning ability, and in an amount of preferably 5.0% by mass or less, more preferably 4.0% by mass or less, even more preferably 3.0% by mass or less, and still more preferably 2.5% by mass or less from the viewpoint of blending suitability.

[0059] In the detergent composition for textile products of the present invention, the mass ratio (b) / (c2) of the content of the component (b) to the content of the component (c2) is, from the viewpoint of improving cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.4 or more, and from the viewpoint of improving cleaning performance, 20 or less, preferably 15 or less, more preferably 10 or less, even more preferably 5.0 or less, still more preferably 4 or less, and even more preferably 3 or less. When the component (b) contains a fatty acid monoalkanolamide as the component (b1), the mass ratio (b1) / (c2) of the content of the component (b1) to the content of the component (c2) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.6 or more, more preferably 0.7 or more, even more preferably 0.8 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 4 or less, even more preferably 1.5 or less, and still more preferably 1.2 or less. When the component (b) contains a fatty acid dialkanolamide as the component (b2), the mass ratio (b2) / (c2) of the content of the component (b2) to the content of the component (c2) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.4 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 4 or less, even more preferably 3 or less.

[0060] The detergent composition for textile products of the present invention contains the component (c3) in an amount of preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, still more preferably 0.3% by mass or more, still more preferably 0.7% by mass or more, and still more preferably 1.2% by mass or more from the viewpoint of improving cleaning ability, and in an amount of preferably 5.0% by mass or less, more preferably 2.7% by mass or less, even more preferably 2.4% by mass or less, and still more preferably 2.2% by mass or less from the viewpoint of blending suitability.

[0061] In the detergent composition for textile products of the present invention, the mass ratio (b) / (c3) of the content of the component (b) to the content of the component (c3) is, from the viewpoint of improving cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.2 or more, even more preferably 0.3 or more, still more preferably 0.4 or more, and from the viewpoint of improving cleaning performance, 20 or less, preferably 10 or less, more preferably 5.0 or less, even more preferably 4.0 or less, still more preferably 3.0 or less, and still more preferably 2.0 or less. When the component (b) contains a fatty acid monoalkanolamide as the component (b1), the mass ratio (b1) / (c3) of the content of the component (b1) to the content of the component (c3) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.1 or more, more preferably 0.3 or more, even more preferably 0.4 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 4 or less, even more preferably 3 or less. When the component (b) contains a fatty acid dialkanolamide as the component (b2), the mass ratio (b2) / (c3) of the content of the component (b2) to the content of the component (c3) in the detergent composition for textile products of the present invention is, from the viewpoint of improving the cleaning performance, 0.05 or more, preferably 0.7 or more, more preferably 0.8 or more, even more preferably 0.9 or more, and from the viewpoint of improving the cleaning performance, preferably 10 or less, more preferably 7 or less, even more preferably 4 or less, and still more preferably 3 or less.

[0062] The detergent composition for textile products of the present invention contains water from the viewpoint of solubility during cleaning. The water may be ion-exchanged water, tap water, distilled water, purified water, or the like. Water may be used as the remainder of the composition in an amount such that the composition as a whole is 100% by mass. From the viewpoint of solubility during cleaning, the detergent composition for textile products of the present invention contains water in an amount of preferably 10% by mass or more, more preferably 50% by mass or more, even more preferably 70% by mass or more, and preferably 90% by mass or less, more preferably 85% by mass or less. When applying the component (b) and the component (c) to cosmetic stains, generally, it is preferable that the amount of water is less. However, by using the component (b) and the component (c) in combination, the detergency can be improved even if the water content is increased.

[0063] The pH of the detergent composition for textile products of the present invention at 25 °C is not particularly limited, and can be selected, for example, from the range of 2.0 or more and 11.0 or less. From the viewpoint of improving detergency, the pH of the detergent composition for textile products of the present invention at 25 °C is preferably 6 or more, more preferably 7 or more, still more preferably 8 or more, and from the viewpoint of improving safety, it is preferably 11 or less, more preferably 10 or less, still more preferably 9 or less. In addition, the pH of the present invention is measured by the glass electrode method. Specifically, it is measured by the following method. <Method for Measuring pH> Connect a combined electrode for pH measurement (for example, a glass sliding sleeve type manufactured by Horiba, Ltd.) with the internal solution of the pH electrode being a saturated potassium chloride aqueous solution (3.33 mol / L) to a pH meter (for example, pH / Ion Meter F-23 manufactured by Horiba, Ltd.). Next, fill 100 mL beakers with a pH 4.01 standard solution (phthalate standard solution), a pH 6.86 (neutral phosphate standard solution), and a pH 9.18 standard solution (borate standard solution), respectively, and immerse them in a constant temperature bath at 25 °C for 30 minutes. Immerse the pH measurement electrode in the standard solution adjusted to a constant temperature for 3 minutes, and perform calibration operations in the order of pH 6.86 → pH 9.18 → pH 4.01. Adjust the detergent composition for textile products of the present invention to be measured to 25 °C, immerse the electrode of the above pH meter in the detergent composition for textile products of the present invention, and measure the pH after 1 minute.

[0064] <Other Components> The detergent composition for textile products of the present invention may optionally contain an alkali agent, a chelating agent, an anti-redeposition agent, a dispersant, a bleaching agent, a bleach activator, an enzyme, a fluorescent dye, inorganic salts, a stabilizer, an antioxidant, a pigment, a fragrance, an antibacterial and preservative agent, an antifoaming agent, an organic solvent, a hydrotrope agent, and a pH adjuster (however, excluding the components (a) to (c)).

[0065] The liquid detergent composition for fabric products of the present invention may contain, for example, the following components (d1) to (d3). (d1) A fluorescent dye, for example, a fluorescent dye commercially available as Tinopal CBS (trade name, manufactured by Ciba Specialty Chemicals) or Whitex SA (trade name, manufactured by Sumitomo Chemical Co., Ltd.), is added in an amount of 0.001% by mass or more and 1% by mass or less in the composition. (d2) A pH adjuster such as citric acid, benzoic acid, monoethanolamine, or sodium hydroxide is contained in the composition in an amount of 0.001% by mass or more and 5.0% by mass or less. (d3) Appropriate amounts of colorants, fragrances, and antibacterial preservatives.

[0066] The detergent composition for textile products of the present invention is used as a composition that is directly contacted with textile products by, for example, spraying, coating, or immersion, and has a high detergency against cosmetic stains attached to textile products. After contacting the composition with the textile product, the textile product may be rinsed and / or further washed in a washing machine. The detergent composition for textile products of the present invention may be used as a pre-cleaning agent for textile products by contacting the textile products with the textile products before the textile products are washed in a washing machine. In addition, when washing textile products, the detergent composition for textile products of the present invention can be used in combination with any other detergent composition for textile products, textile treatment agent, or the like.

[0067] The detergent composition for textile products of the present invention may be any one of a liquid detergent composition for textile products, a detergent composition for cosmetic stains for textile products, and a liquid detergent composition for cosmetic stains for textile products.

[0068] The detergent composition for textile products of the present invention can be used for various fibers, such as natural fibers, synthetic fibers, and semi-synthetic fibers. The detergent composition for textile products of the present invention can be used for textile products containing these fibers.

[0069] The fibers may be either hydrophobic or hydrophilic. In the present invention, the hydrophilic fibers refer to fibers having a moisture content of 5% or more by mass under standard conditions (20°C, 65% RH). The hydrophobic fibers refer to fibers having a moisture content of 5% or less by mass under standard conditions (20°C, 65% RH). The moisture content under standard conditions is calculated by the method described in JIS L 1013. Examples of hydrophobic fibers include protein-based fibers (milk protein casein fibers, Promix, etc.), polyamide-based fibers (nylon, etc.), polyester-based fibers (polyester, etc.), polyacrylonitrile-based fibers (acrylic, etc.), polyvinyl alcohol-based fibers (vinylon, etc.), polyvinyl chloride-based fibers (polyvinyl chloride, etc.), polyvinylidene chloride-based fibers (vinylidene, etc.), polyolefin-based fibers (polyethylene, polypropylene, etc.), polyurethane-based fibers (polyurethane, etc.), polyvinyl chloride / polyvinyl alcohol copolymer-based fibers (polycral, etc.), polyalkylene paraoxybenzoate-based fibers (benzoate, etc.), polyfluoroethylene-based fibers (polytetrafluoroethylene, etc.), and the like. Examples of hydrophilic fibers include seed hair fibers (cotton, kapok, etc.), bast fibers (hemp, flax, ramie, hemp, jute, etc.), leaf vein fibers (Manila hemp, sisal, etc.), palm fibers, rush, straw, animal hair fibers (wool, mohair, cashmere, camel hair, alpaca, vicuna, angora, etc.), silk fibers (domestic silk, wild silk), feathers, and cellulosic fibers (rayon, polynosic, cupra, acetate, etc.). In the present invention, the textile product means a fabric such as a woven fabric, knitted fabric, or nonwoven fabric using the hydrophobic or hydrophilic fiber, and an undershirt, T-shirt, dress shirt, blouse, slacks, hat, handkerchief, towel, knitwear, socks, underwear, tights, mask, or other product obtained using the same. Preferred textile products are woven fabrics such as woven fabrics and knitted fabrics, and woven textile products. The detergent composition for textile products of the present invention is highly effective on hydrophilic textile products containing hydrophilic fibers such as cotton, and can be more effective on hydrophobic textile products containing hydrophobic fibers such as chemical fibers.

[0070] The detergent composition for textile products of the present invention not only has excellent cleaning properties against cosmetic stains adhering to hydrophilic textile products such as cotton, but also has a higher effect on cosmetic stains adhering to hydrophobic textile products, which are difficult to remove cosmetic stains from. In the present invention, a hydrophilic textile product is one that contains hydrophilic fibers in an amount of preferably 50% by mass or more, more preferably 70% by mass or more, even more preferably 80% by mass or more, and 100% by mass or less, preferably 95% by mass or less, and a hydrophobic textile product is one that contains hydrophobic fibers in an amount of preferably 50% by mass or more, more preferably 70% by mass or more, even more preferably 80% by mass or more, and 100% by mass or less, preferably 95% by mass or less.

[0071] The textile product detergent composition of the present invention can be suitably used for cleaning textile products having oily dirt containing an oily component, for example, oily cosmetics containing a polymer compound such as wax or silicone, etc. More specifically, it can be suitably used for cleaning textile products having lip cosmetics such as lipstick and lip gloss, eye makeup cosmetics, powder foundation, emulsion foundation, blush, makeup base, eyebrow cosmetics, nail cosmetics, and solvent-based nail beautifier, and sunscreen cosmetics such as sun oil and emulsion sunscreen, etc. The detergent composition for textile products of the present invention has a high detergency against cosmetic stains containing a pigment and an oily component, and further against a pigment and a polymer compound, and also against cosmetic stains containing an emulsifier and a stabilizer, such as polyether-modified silicone.

[0072] <Cleaning method> The present invention provides a method for cleaning textile products, comprising contacting a textile product with a detergent composition for textile products, which contains the above-mentioned components (a), (b), (c) and water, and in which the mass ratio (b) / (c) of the content of component (b) to the content of component (c) is 0.05 or more and 20 or less. The method for cleaning a textile product of the present invention may be a method for cleaning a textile product in which the detergent composition for textile products of the present invention is brought into contact with the textile product. Also, the method for cleaning a textile product of the present invention may be a method for cleaning a textile product in which the detergent composition for textile products of the present invention is brought into contact with the textile product having cosmetic stains attached thereto. In the method for cleaning textile products of the present invention, the preferred aspects of the components (a) to (c) in the detergent composition for textile products to be contacted with the textile products, and the preferred contents, mass ratios, optional components, etc. of the components (a) to (c) in the composition are the same as those in the detergent composition for textile products of the present invention. The textile products may be the textile products described above in the detergent composition for textile products of the present invention.

[0073] In the method for cleaning textile products of the present invention, the manner in which the textile detergent composition is brought into contact with the textile product may be, for example, one or more methods selected from spraying, coating, and immersion. The composition is preferably brought into direct contact with the textile product by one or more methods selected from spraying, coating, and immersion without dilution. In the method for cleaning textile products of the present invention, bringing the textile detergent composition into contact with the textile product without dilution may mean bringing the composition into contact with a dry textile product without dilution, or bringing the composition into contact with a wet textile product without dilution.

[0074] In the method for cleaning textile products of the present invention, after contacting the textile product with the detergent composition for textile products, it is preferable to carry out one or more steps selected from washing the textile product by applying external force to the textile product with a human hand, washing the textile product in a washing machine, and rinsing the textile product. It is preferable to wash the textile product by applying external force with a human hand, and it is more preferable to wash the textile product by applying external force with a human hand and then further wash it in a washing machine. Washing a textile product by applying external force by hand includes one or more of the following: kneading the textile product directly with one's hand or using a washing tool such as a brush, scrubbing the textile product, and beating the textile product. The detergent composition for textile products of the present invention may be used in combination with any detergent for textile products or textile product treatment agent to clean textile products.

[0075] In the method for cleaning textile products of the present invention, after contacting the textile product with the detergent composition for textile products, the textile product can be left for preferably 1 minute or more, more preferably 3 minutes or more, and even more preferably 5 minutes or more from the viewpoint of cleaning power, and for preferably 300 minutes or less, more preferably 120 minutes or less, and even more preferably 60 minutes or less from the viewpoint of protecting the textile product. In the textile product cleaning method of the present invention, the temperature at which the textile product is left after contacting the textile product with the detergent composition is preferably 5°C or higher, more preferably 20°C or higher, from the viewpoint of cleaning power, and is preferably 80°C or lower, more preferably 40°C or lower, from the viewpoint of protecting the textile product. EXAMPLES

[0076] [Ingredients] The textile cleaning compositions shown in Tables 1 and 2 were prepared using the following components. <Component (a)> a1: Polyoxyethylene lauryl ether, average number of moles of ethylene oxide added: 10 moles, Dehydol LS10 (manufactured by Thai Ethoxylate Co., Ltd.) a2: Sodium polyoxyethylene lauryl ether sulfate, average number of moles of ethylene oxide added: 2 moles, EMALE 227HP-G (manufactured by Kao Corporation) <(b) Component> b1: fatty acid N-methylethanolamide, Aminone C11S (Kao Corporation), coconut oil fatty acid methylethanolamide b2: Fatty acid diethanolamide, Aminone PK-02S (Kao Corporation), palm kernel oil fatty acid diethanolamide <(c) component> c1: 2-Ethylhexyl glyceryl ether, Penetol GE-EH (Kao Corporation) c2: Oleyl alcohol (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.) c3-1: Lauric acid, Palmac98-12 (manufactured by IOI Acidchem) c3-2: Oleic acid (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.) <Other ingredients> Fluorescent whitening agent: Chinopal CBS-X (BASF) Citric acid (manufactured by Citric acid Industry) Sodium benzoate (manufactured by Wuhan Organic Industry Co., Ltd.) fragrance

[0077] [Test cloth] 2.0 kg of cotton knitted fabric (100% cotton, undyed fabric, dyeing test materials, Tanigashira Shoten Co., Ltd.) was placed in a fully automatic washing machine (NA-F70PX9, Panasonic Corporation) and washed five times with a washing solution containing a nonionic surfactant (Emulgen 108, Kao Corporation) (bath ratio: 200 mg / kg) and sodium carbonate (Wako Pure Chemical Industries, Ltd.) (bath ratio: 400 mg / kg) (40 L of washing solution, 6 minutes of washing, 2 water rinses, 3 minutes of spin-drying). After washing, the cotton knitted fabric was further rinsed with water in a two-tub washing machine (Toshiba Corporation, Ginga VH-360S1) until no bubbles remained. The cotton knitted fabric was then spin-dried for 5 minutes in a spin-drying tub and naturally dried. The dried cotton knitted fabric was cut into 6 cm x 6 cm pieces to prepare test fabrics.

[0078] [Preparation of model soiled cloth] A liquid foundation containing silicone etc. (Primavista, Kao Corporation) was diluted 10-fold with ethanol, and 50 μL of the diluted liquid foundation was applied to a test cloth and left to stand at room temperature for 2 hours to obtain a model soiled cloth.

[0079] [Method for evaluating cosmetic stain cleaning rate] The components were mixed in the proportions shown in Tables 1 and 2 to prepare detergent compositions for fabric products. 0.25 g of each of the textile product detergent compositions was applied to a model soiled cloth, which was then rubbed and washed for 1 minute, and then the model soiled cloth was rinsed with running tap water and allowed to air dry. The reflectance (reflectance before and after washing) of the original cloth before soiling and the model soiled cloth before and after washing was measured using a colorimeter (Z-300A manufactured by Nippon Denshoku Co., Ltd.) for the model soiled cloth before and after washing, and the cleaning rate was calculated using the following calculation formula (1). The higher the cleaning rate of a textile product detergent composition, the better the cleaning ability of cosmetic stains attached to textile products. Cleaning rate (%) = 100 × [(reflectance after cleaning - reflectance before cleaning) / (reflectance of original fabric - reflectance before cleaning)] (1)

[0080] [Table 1]

[0081] [Table 2]

Claims

1. A detergent composition for textile products, comprising the following components (a), (b), (c) and water, wherein the mass ratio (b) / (c) of the content of component (b) to the content of component (c) is 0.05 or more and 20 or less. Component (a): A surfactant [excluding components (b) and (c)] Component (b): Fatty acid alkanolamide Component (c): At least one selected from the following components (c1), (c2) and (c3) Component (c1): Alkyl glyceryl ether Component (c2): An alcohol having 12 or more carbon atoms Component (c3): A fatty acid having 12 or more carbon atoms or a salt thereof

2. The detergent composition for textile products according to claim 1, wherein the mass ratio (b) / (c) is 0.2 or more and 5.0 or less.

3. The detergent composition for textile products according to claim 1, which is used for washing cosmetic stains adhering to textile products.

4. Component (a) of the detergent composition for textile products according to claim 1 contains at least one surfactant selected from (a1) nonionic surfactant [hereinafter referred to as component (a1)] and (a2) anionic surfactant [hereinafter referred to as component (a2)].

5. The detergent composition for textile products according to claim 4, wherein component (a1) contains the following component (a1-1). Component (a1-1): At least one selected from the compounds represented by the following general formula (a1-1) R １ａ (CO) ｍ O-(AO) ｎ -R ２ａ (a1-1) 〔In formula (a1-1), R １ａ is an aliphatic hydrocarbon group having 10 to 18 carbon atoms, R ２ａ is a hydrogen atom or a methyl group, CO is a carbonyl group, m is a number of 0 or 1, the AO group is at least one alkyleneoxy group selected from an ethyleneoxy group and a propyleneoxy group, and n is an average addition mole number and is a number of 1 or more and 20 or less.〕

6. The detergent composition for textile products according to claim 4, wherein component (a2) contains the following component (a2-1). Component (a2-1): At least one selected from the compounds represented by the following general formula (a2-1) R ３ａ -O-(AO) ｎ -SO ３ M(a2 - 1) [In formula (a2-1), R ３ａ is an aliphatic hydrocarbon group having 10 to 18 carbon atoms, the AO group is at least one alkyleneoxy group selected from an ethyleneoxy group and a propyleneoxy group, n is the average number of moles added, which is a number of 0 or more and 20 or less, and M is a cation.]

7. The detergent composition for textile products according to claim 1, which contains 5% by mass or more and 40% by mass or less of component (a).

8. Component (b) of the detergent composition for textile products according to claim 1 contains at least one selected from fatty acid N-methylethanolamide and fatty acid diethanolamide.

9. The detergent composition for textile products according to claim 1, which contains 0.1% by mass or more and 5.0% by mass or less of component (b).

10. Component (c) of the detergent composition for textile products according to claim 1 contains at least one selected from component (c2) and component (c3).

11. The detergent composition for textile products according to claim 1, which contains 0.1% by mass or more and 5.0% by mass or less of component (c).

12. The detergent composition for textile products according to claim 1, wherein the mass ratio (b) / (c) is 0.3 or more and 3.0 or less.

13. A method for washing a textile product, comprising bringing the detergent composition for textile products according to any one of claims 1 to 12 into contact with the textile product.

14. The method for washing a textile product according to claim 13, comprising bringing the detergent composition for textile products into contact with cosmetic stains adhering to the textile product.