Liquid detergent composition for textile product

Abstract

To provide a liquid detergent composition for a textile product having excellent detergency to pigment stains.SOLUTION: There is provided a liquid detergent composition for a textile product which comprises a component (A): a nonionic surfactant, a component (B): a non-soap-based anionic surfactant and a component (C): one or more chelating agents selected from ethylenediamine disuccinic acid, hydroxyiminodisuccinic acid, 1,3-propanediaminetetraacetic acid, hydroxyethylethylenediamine triacetic acid, 1,3-diamino-2 hydroxypropane tetraacetic acid, triethylenetetraamine hexaacetic acid and salts thereof, wherein the total of the content of the component (A) and the content of the component (B) is 28 mass% or more based on the total mass of the liquid detergent composition for a textile product and the mass ratio represented by the component (A) / the component (B) is 2 or more.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a liquid detergent composition for textile products.

Background Art

[0002] As stubborn stains adhering to textile products such as clothing, stains of foods and beverages containing dyes such as red wine (hereinafter also referred to as "dye stains") can be mentioned. Dye stains cannot be easily washed even when washed with a general laundry detergent, so a detergent having a bleaching effect is often used. As a detergent having a bleaching effect, for example, Patent Document 1 discloses a cleaning tablet containing a bleaching agent and the like.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, for the purpose of reducing the labor of washing and reducing clothing damage, etc., a method for washing dye stains without bleaching has been demanded. An object of the present invention is to provide a liquid detergent composition for textile products having excellent detergency against dye stains.

Means for Solving the Problems

[0005] The present invention has the following aspects. [1] Component (A): a nonionic surfactant, and Component (B): a non-soap anionic surfactant, and (C) Component: One or more chelating agents selected from ethylenediaminedisuccinic acid, hydroxyiminodisuccinic acid, 1,3-propanediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, 1,3-diamino-2-hydroxypropanetetraacetic acid, triethylenetetraaminehexaacetic acid, and salts thereof, and contains The total content of the (A) component and the (B) component is 28% by mass or more based on the total mass of the liquid detergent composition for textile products, A liquid detergent composition for textile products, wherein the mass ratio represented by the (A) component / the (B) component is 2 or more. [2] The liquid detergent composition for textile products according to [1], wherein the mass ratio represented by the (C) component / the (A) component is 0.0001 to 0.1. [3] The liquid detergent composition for textile products according to [1] or [2], wherein the content of the (C) component is 0.01 to 5% by mass based on the total mass of the liquid detergent composition for textile products. [4] The liquid detergent composition for textile products according to any one of [1] to [3], wherein the content of the (A) component is 20 to 60% by mass based on the total mass of the liquid detergent composition for textile products. [5] The liquid detergent composition for textile products according to any one of [1] to [4], wherein the content of the (B) component is 2 to 30% by mass based on the total mass of the liquid detergent composition for textile products. [6] The liquid detergent composition for textile products according to any one of [1] to [5], wherein the total content of all surfactants contained in the liquid detergent composition for textile products is 28% by mass or more based on the total mass of the liquid detergent composition for textile products. [7] (D) Component: The liquid detergent composition for textile products according to any one of [1] to [6], further containing cellulase.

Effects of the Invention

[0006] According to the present invention, a liquid detergent composition for textile products excellent in detergency against dye stains can be provided.

Modes for Carrying Out the Invention

[0007] Hereinafter, embodiments of the present invention will be specifically described. However, the present invention is not limited to the following embodiments, and various modifications can be made within the scope of the gist thereof and implemented. In this specification and the claims, a numerical range represented by "~" means a numerical range including the numerical values before and after "~" as the lower limit value and the upper limit value. For example, A~B is synonymous with A or more and B or less.

[0008] The liquid detergent composition for textile products of the present invention (hereinafter, also simply referred to as "detergent composition") contains the following component (A), component (B), and component (C). The detergent composition may further contain components other than component (A), component (B), and component (C) (hereinafter, also referred to as "optional components") as necessary, as long as the effects of the present invention are not impaired.

[0009] <(A) component> Component (A) is a nonionic surfactant. Examples of component (A) include polyoxyalkylene type nonionic surfactants, alkylphenols, alkylene oxide adducts such as fatty acids having 8 to 22 carbon atoms or amines having 8 to 22 carbon atoms, polyoxyethylene polyoxypropylene block copolymers, fatty acid alkanolamines, fatty acid alkanolamides, polyhydric alcohol fatty acid esters or their alkylene oxide adducts, polyhydric alcohol fatty acid ethers, alkyl (or alkenyl) amine oxides, alkylene oxide adducts of hydrogenated castor oil, sugar fatty acid esters, N-alkyl polyhydroxy fatty acid amides, alkyl glycosides, and the like. Component (A) may be used alone or in combination of two or more.

[0010] As component (A), polyoxyalkylene type nonionic surfactants are preferred. As the polyoxyalkylene type nonionic surfactant, a compound represented by the following general formula (a1) (hereinafter, also referred to as "compound (a1)"), a compound represented by the following general formula (a2) (hereinafter, also referred to as "compound (a2)") is more preferable, and compound (a1) is even more preferable.

[0011] R 1 -O-[(EO) s1 / (A 1 O) t1 -(EO) u1 -R 2 ···(a1) (In general formula (a1), R 1 is a hydrocarbon group having 8 to 22 carbon atoms, R 2 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an alkenyl group having 2 to 6 carbon atoms, EO is an oxyethylene group, s1 is a number from 3 to 25 indicating the average number of repetitions of EO, A 1 O represents at least one of PO (oxypropylene group) and BO (oxybutylene group), t1 is a number from 0 to 6 indicating the average number of repetitions of A 1 O, and u1 is a number from 0 to 20 representing the average number of repetitions of EO.)

[0012] R 1 has 8 to 22 carbon atoms in the hydrocarbon group, preferably 10 to 18, particularly preferably 12 to 18. R 1 may be linear or branched. Specifically, R 1 may be a linear hydrocarbon group, or a group selected from branched primary hydrocarbon groups and linear secondary hydrocarbon groups. In particular, R 1 is preferably a linear hydrocarbon group. R 1 's hydrocarbon group may or may not have an unsaturated bond. The carbon atom of R 1 bonded to -O- may be a primary carbon atom or a secondary carbon atom.

[0013] R 2 When it is an alkyl group, it has 1 to 6 carbon atoms, preferably 1 to 3. R 2 When R is an alkenyl group, the number of carbon atoms is 2 to 6, preferably 2 to 3. R 2 is preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, more preferably a hydrogen atom.

[0014] s1 is from 3 to 25. When the detergent composition contains an enzyme, s1 is preferably from 5 to 25, more preferably from 7 to 20, still more preferably from 7 to 18, and particularly preferably from 7 to 15 in terms of excellent enzyme stability. Also, in terms of further improving the detergency against pigment stains, particularly stains containing the pigment of red wine (hereinafter also referred to as "wine stains"), s1 is preferably from 7 to 18, and particularly preferably from 12 to 15. It is considered that the longer the oxyethylene group, that is, the more hydrophilic it is, the easier it is to act on the hydrophilic component of wine stains and the higher detergency can be exerted.

[0015] t1 is from 0 to 6, preferably from 0 to 3. u1 is from 0 to 20, preferably from 0 to 15, more preferably from 0 to 10.

[0016] R 1 When R is a linear hydrocarbon group, s1 + u1 is preferably from 3 to 30, more preferably from 5 to 25, still more preferably from 5 to 20, particularly preferably from 7 to 18, and most preferably from 12 to 15. The number of t1 is preferably from 0 to 6, more preferably from 0 to 3. R 1 When R is a branched hydrocarbon group, s1 + u1 is preferably from 1 to 20, more preferably from 3 to 14, still more preferably from 4 to 12, and most preferably from 5 to 10. The number of t1 is preferably from 0 to 6, more preferably from 0 to 3.

[0017] When t1 is not 0, that is, when the compound (a1) has EO and PO, EO and BO, or EO, PO and BO, in [(EO) s1 / (A 1 O) t1 , there is no particular limitation on the distribution (sequence order) of EO and PO, EO and BO, or EO, PO and BO, and these may be arranged in a block form or in a random form. Also, when EO is "R1 It may be bonded to "-O-", or PO or BO may be bonded to "R 1 -O-". When t1 is not 0, the compound (a1) preferably has EO and PO, or EO and BO. The average repeat number can be measured by gas chromatography, NMR, etc.

[0018] R 1 When it is a branched hydrocarbon group, R 1 is preferably a hydrocarbon group represented by the following general formula (α). Among the compounds (a1), a compound in which R 1 is a hydrocarbon group represented by the following general formula (α) is particularly also referred to as "compound (a1-α)". R 5 -CHR 6 -CH2- ···(α) (In the general formula (α), R 5 and R 6 are each independently a chain monovalent hydrocarbon group, and the total number of carbon atoms of R 5 and R 6 is 6 to 16.)

[0019] R 5 and R 6 are each independently a chain monovalent hydrocarbon group. The total number of carbon atoms of R 5 and R 6 is 6 to 16, preferably 6 to 14, more preferably 6 to 14, and even more preferably 6 to 10. R 5 and R 6 The chain monovalent hydrocarbon groups in may be linear or branched. The chain monovalent hydrocarbon group may or may not have an unsaturated bond. As the chain monovalent hydrocarbon group, an alkyl group or an alkenyl group is preferable. R 5 When the number of carbon atoms of R 6 is different from the number of carbon atoms of R 5 and R 6 Among them, the number of carbon atoms of the one with fewer carbon atoms is preferably 2 to 7, and the number of carbon atoms of the one with more carbon atoms is preferably 4 to 14.

[0020] R 5 -CHR 6 -CH2- is the residue obtained by removing one hydroxyl group from garbet alcohol (R 5 -CHR 6 -CH2-OH). Note that R 5 -CHR 6 -CH2- is also denoted as R 5 -CH(R 6 ).-CH2-. Garbet alcohol is an alcohol obtained by subjecting a raw material alcohol to a garbet reaction (gelbe reaction). In the garbet reaction, two molecules of the raw material alcohol condense and dimerize. For example, when R 7 -CH2-CH2-OH (where R 7 is a linear monovalent hydrocarbon group having 2 to 7 carbon atoms.) is used as the raw material alcohol, a garbet alcohol represented by R 7 -CH2-CH2-CHR 7 -CH2-OH is obtained. The two molecules of the raw material alcohol forming the garbet alcohol may be different. When the two molecules of the raw material alcohol are the same, the difference between the number of carbon atoms of R 5 and the number of carbon atoms of R 6 is 2. R 5 -CHR 6 Specific examples of -CH2- include a 2-ethylhexyl group, a 2-propylheptyl group, and the like.

[0021] Specific examples of the compound (a1-α) include 2-ethylhexyl alcohol alkoxylates such as 2-ethylhexyl alcohol ethoxylate, and 2-propylheptyl alcohol alkoxylates such as 2-propylheptyl alcohol ethoxylate. Among these, 2-propylheptyl alcohol ethoxylate is preferred. The average number of moles of ethylene oxide added is preferably 3 to 14, more preferably 4 to 12, and most preferably 5 to 10.

[0022] The compound (a1-α) may be a commercially available product or may be produced by a known production method. For example, commercially available products of 2-ethylhexyl alcohol ethoxylate include "Neocol 1008" manufactured by Nippon Emulsifier Co., Ltd. Examples of commercially available products of 2-propylheptyl alcohol ethoxylate include "Lutensol XP-100", "Lutensol XP-80", "Lutensol XP-50", etc. manufactured by BASF. As a production method of the compound (a1-α), for example, a method of adding 1 to 20 molar equivalents of alkylene oxide to a garbet alcohol having 8 to 18 carbon atoms can be mentioned. As the garbet alcohol, those produced by subjecting the raw material alcohol as described above to a garbet reaction or commercially available products may be used. For example, 2-propylheptyl alcohol can be obtained by subjecting pentanol to a garbet reaction.

[0023] R 3 -X-[(EO) s2 / (A 2 O) t2 -(EO) u2 -R 4 ···(a2) (In the general formula (a2), R 3 is a hydrocarbon group having 7 to 21 carbon atoms, -X- is -COO- or -CONH-, R 4 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an alkenyl group having 2 to 6 carbon atoms, EO is an oxyethylene group, s2 is a number from 3 to 25 indicating the average repeat number of EO, A 2 O represents at least one of PO (oxypropylene group) and BO (oxybutylene group), t2 is a number from 0 to 6 indicating the average repeat number of A 2 O, and u2 is a number from 0 to 20 representing the average repeat number of EO.)

[0024] R 3 has 7 to 21 carbon atoms in the hydrocarbon group, preferably 9 to 19, more preferably 11 to 17. R 3It may be linear or branched. Specifically, R 3 may be a linear hydrocarbon group, or a group selected from a branched primary hydrocarbon group and a linear secondary hydrocarbon group. In particular, R 3 is preferably a linear hydrocarbon group. R 3 's hydrocarbon group may or may not have an unsaturated bond. The carbon atom of R 3 bonded to -X- may be a primary carbon atom or a secondary carbon atom.

[0025] R 4 When it is an alkyl group, the number of carbon atoms is 1 to 6, preferably 1 to 3. R 4 When it is an alkenyl group, the number of carbon atoms is 2 to 6, preferably 2 to 3. R 4 is preferably a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, more preferably an alkyl group having 1 to 2 carbon atoms. -X- is preferably -COO-.

[0026] s2 is 3 to 25, and in terms of excellent enzyme stability, 5 to 20 is preferred, 10 to 18 is more preferred, and 12 to 18 is even more preferred. t2 is 0 to 6, preferably 0 to 3. u2 is 0 to 20, preferably 0 to 15, more preferably 0 to 10. s2 + u2 is preferably 5 to 30, more preferably 5 to 25, even more preferably 5 to 20, and particularly preferably 10 to 20.

[0027] When t2 is not 0, that is, when the compound (a2) has EO and PO, EO and BO, or EO and PO and BO, in [(EO) s2 / (A 2 O) t2 , there is no particular limitation on the distribution (sequence order) of EO and PO, EO and BO, or EO and PO and BO, and these may be arranged in a block pattern or in a random pattern. Also, when EO is "R 3It may be bonded to "-X-", or PO or BO may be bonded to "R 3 -X-". When t2 is not 0, the compound (a2) preferably has EO and PO, or EO and BO.

[0028] As the compound (a2), polyoxyethylene fatty acid alkyl ester is preferable. In particular, R in the formula (a2) 3 is an alkyl group having 11 carbon atoms and an alkyl group having 13 carbon atoms, -X- is -COO-, and R 4 is a methyl group, s2 = 15, t2 = 0, and u2 = 0 (hereinafter sometimes referred to as MEE) is more preferable. Polyoxyethylene fatty acid alkyl ester, particularly MEE, is a nonionic surfactant with weak molecular orientation and unstable micelles in an aqueous solution system. For this reason, polyoxyethylene fatty acid alkyl ester does not cause gelation or the like at high concentrations, and it is presumed that even if it is blended in a large amount in the detergent composition alone, its solubility in water can be enhanced. Therefore, it is considered that when the detergent composition containing polyoxyethylene fatty acid alkyl ester comes into contact with water, it is quickly dispersed to form a cleaning liquid. Also, the concentration of polyoxyethylene fatty acid alkyl ester in the cleaning liquid quickly becomes uniform, and a cleaning liquid with an appropriate concentration can be brought into contact with the object to be cleaned (textile product) from the initial stage of cleaning. As a result, it is considered that high detergency can be exhibited.

[0029] The content of the component (A) is preferably 20 to 60% by mass, more preferably 25 to 50% by mass, and even more preferably 30 to 45% by mass based on the total mass of the detergent composition. If the content of the component (A) is at least the above lower limit value, the sebum detergency is improved. If the content of the component (A) is at most the above upper limit value, the uniform stability of the appearance, viscosity (usability), and rinsability of the detergent composition are improved.

[0030] <Component (B)> (B) component is a non-soap anionic surfactant. The "non-soap anionic surfactant" is an anionic surfactant excluding higher fatty acids and their salts (so-called soaps). The "higher fatty acids" are saturated fatty acids having 8 to 24 carbon atoms and unsaturated fatty acids having 8 to 24 carbon atoms. That is, the (B) component is an anionic surfactant excluding saturated fatty acids having 8 to 24 carbon atoms, unsaturated fatty acids having 8 to 24 carbon atoms, and salts thereof. Examples of the (B) component include linear alkylbenzene sulfonic acid or its salt (LAS), α-olefin sulfonic acid or its salt (AOS), linear or branched alkyl sulfate ester or its salt (AS), polyoxyalkylene alkyl ether sulfate ester or its salt (AES), polyoxyalkylene alkenyl ether sulfate ester or its salt, alkane sulfonic acid having an alkyl group or its salt, α-sulfo fatty acid ester or its salt, internal olefin sulfonic acid or its salt (IOS), hydroxyalkane sulfonic acid or its salt (HAS), alkyl ether carboxylic acid or its salt, polyoxyalkylene ether carboxylic acid or its salt, alkylamide ether carboxylic acid or its salt, alkenylamide ether carboxylic acid or its salt, carboxylic acid type anionic surfactants such as acylaminocarboxylic acid or its salt; phosphate ester type anionic surfactants such as alkyl phosphate ester or its salt, polyoxyalkylene alkyl phosphate ester or its salt, polyoxyalkylene alkylphenyl phosphate ester or its salt, glycerin fatty acid ester monophosphate ester or its salt, etc. Examples of the salt form of the non-soap anionic surfactant include alkali metal salts (sodium salt, potassium salt, etc.), alkaline earth metal salts (magnesium salt, etc.), alkanolamine salts (monoethanolamine salt, diethanolamine salt, etc.). (B) component may be used alone or in combination of two or more.

[0031] As the component (B), LAS, AOS, AS, AES, and IOS are preferred, and LAS, AOS, AS, and AES are more preferred. Among these, from the viewpoint of further enhancing detergency, LAS and AES are more preferred. The detergent composition preferably contains at least AES, and more preferably contains both LAS and AES.

[0032] Examples of AES include compounds represented by the following general formula (b1) (hereinafter also referred to as "compound (b1)"). R 9 -O-[(EO) v / (PO) w -SO3M ···(b1) (In the general formula (b1), R 9 is an alkyl group having 8 to 20 carbon atoms or an alkenyl group having 8 to 20 carbon atoms, EO is an oxyethylene group, PO is an oxypropylene group, v is a number of 0 or more representing the average repeating number of EO, w is a number of 0 to 6 representing the average repeating number of PO, and M is a counter ion.)

[0033] R 9 may be linear or branched. As R 9 , a linear or branched alkyl group having 10 to 20 carbon atoms is preferred, and a linear or branched alkyl group having 12 to 14 carbon atoms is more preferred. The proportion (content) of the compound where v = 0 and w = 0 in the formula (b1) is preferably 35 to 55% by mass based on the total mass of AES. v is preferably 0 to 5, more preferably 0.1 to 3, still more preferably 0.5 to 3, and particularly preferably 0.5 to 2.5. w is preferably 0 to 3, and more preferably 0. v + w is preferably a number greater than 0, and more preferably 1 to 5. When v and w are not 0 respectively, that is, when the compound (b1) has both EO and PO, EO and PO may be added in a block form or in a random form. As a method of adding EO and PO in a block form, for example, a method of introducing propylene oxide after introducing ethylene oxide, and a method of introducing ethylene oxide after introducing propylene oxide can be mentioned. The molar number distribution of the added ethylene oxide and propylene oxide is not particularly limited. Examples of M include a hydrogen atom; alkali metal ions such as sodium and potassium; alkaline earth metal ions such as magnesium; alkanolamines such as monoethanolamine and diethanolamine. When M is a divalent or higher counter ion, it is assumed that M is bonded to -SO3 by a number multiplied by 1 / valence. For example, when M is a magnesium ion, the number of M is 1 / 2.

[0034] The content of the component (B) is preferably 2 to 30% by mass, more preferably 3 to 25% by mass, and even more preferably 4 to 20% by mass based on the total mass of the detergent composition. When the content of the component (B) is at least the above lower limit value, the sebum detergency is improved. When the content of the component (B) is at most the above upper limit value, the uniform stability of the appearance of the detergent composition, the viscosity (usability), and the rinsability are improved.

[0035] The total of the content of the component (A) and the content of the component (B) (hereinafter, also referred to as "A + B amount") is 28% by mass or more based on the total mass of the detergent composition, preferably 28 to 90% by mass, more preferably 35 to 70% by mass, even more preferably more than 35% by mass and at most 70% by mass, particularly preferably 38 to 65% by mass, and most preferably 40 to 60% by mass. When the A + B amount is at least the above lower limit value, the detergency against wine stains is further improved. In addition, the sebum detergency is improved. When the A + B amount is at most the above upper limit value, the stability (hereinafter, also referred to as "low-temperature stability") when the detergent composition is stored at a low temperature (for example, -5°C or lower) is improved.

[0036] (A) component / (B) component, which is the mass ratio of the content of (A) component to the content of (B) component (hereinafter also referred to as "A / B ratio"), is 2 or more, and more preferably 2 - 5. If the A / B ratio is at or above the above lower limit value, the detergency against wine stains will be further improved. In addition, the detergency for sebum will be improved. Since the (A) component contains a polyoxyalkylene chain that can be hydrated compared to the (B) component, the higher the proportion of the (A) component, the more likely it is to act on wine stains, which are hydrophilic components, and the detergency will be improved. On the other hand, since the (B) component disperses wine stains and sebum stains to enhance the cleaning effect, a certain amount needs to be present. Therefore, the A / B ratio is 2 or more. If the A / B ratio is at or below the above upper limit value, the low-temperature stability of the detergent composition will be improved.

[0037] <(C) component> (C) component is one or more chelating agents selected from ethylenediaminedisuccinic acid (EDDS), hydroxyiminodisuccinic acid (HIDS), 1,3 - propanediaminetetraacetic acid (PDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), 1,3 - diamino - 2 - hydroxypropane tetraacetic acid (DPTA - OH), triethylenetetraaminehexaacetic acid (TTHA), and salts thereof. Examples of the salt form of the chelating agent include alkali metal salts (such as sodium salt, potassium salt, etc.), alkaline earth metal salts (such as magnesium salt, etc.), alkanolamine salts (such as monoethanolamine salt, diethanolamine salt, etc.). (C) component may be used alone or in combination of two or more.

[0038] From the viewpoint of obtaining high detergency, EDDS and HIDS are preferred as the (C) component.

[0039] The content of component (C) is preferably 0.01 to 5% by mass, more preferably 0.1 to 2% by mass, and still more preferably 0.1 to 1% by mass based on the total mass of the detergent composition. If the content of component (C) is at least the above lower limit value, the detergency against wine stains is further improved. In addition, yellowing of the detergent composition can be suppressed. If the content of component (C) is at most the above upper limit value, the uniform stability of the appearance of the detergent composition is improved.

[0040] The mass ratio of the content of component (C) to the content of component (A), which is represented by (C) component / (A) component (hereinafter also referred to as "C / A ratio"), is preferably 0.0001 to 0.1, more preferably 0.001 to 0.05, and still more preferably 0.002 to 0.035. If the C / A ratio is within the above range, the detergency against wine stains due to the addition of component (C) is further improved. In particular, if the C / A ratio is at least the above lower limit value, the low-temperature stability of the detergent composition is improved. The smaller the C / A ratio, the more likely it is to maintain good removal efficiency of wine stains by component (A).

[0041] <Optional component> Examples of the optional component include water, water-miscible organic solvents, surfactants other than component (A) and component (B) (excluding soap, hereinafter also referred to as "other surfactants"), chelating agents other than component (C) (hereinafter also referred to as "other chelating agents"), higher fatty acids or their salts, anti-redeposition agents, inorganic reducing agents, enzymes, enzyme stabilizers, hydrotropes (e.g., aromatic sulfonic acids or their salts, etc.), detergency builders, stabilizers, alkali agents (e.g., alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, etc.), softening agents such as silicone, preservatives, fluorescent agents, anti-migration agents, pearling agents, antioxidants, antibacterial agents, general-purpose dyes or pigments as colorants, emulsifying agents, fragrances, pH adjusters, and the like. The optional component may be used alone or in combination of two or more.

[0042] (Water) Examples of water include purified water, ion-exchanged water, distilled water, tap water, and the like. Water may be used alone or in combination of two or more kinds. The water content is preferably 10 to 40% by mass, more preferably 15 to 40% by mass, and still more preferably 20 to 35% by mass based on the total mass of the detergent composition. If the water content is at least the above lower limit value, a viscosity suitable for the detergent composition can be maintained well. If the water content is at most the above upper limit value, the detergent composition is less likely to gel and can maintain good fluidity.

[0043] (Water-miscible organic solvent) The water-miscible organic solvent refers to an organic solvent that dissolves 25 g or more in 1 L of water at 25°C. Examples of the water-miscible organic solvent include alcohols such as ethanol, glycerin, 1-propanol, 2-propanol, 1-butanol, and 3-methoxy-3-methyl-1-butanol (Solfit, trade name); glycols such as propylene glycol (PG), butylene glycol, and hexylene glycol; polyglycols such as diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol having a molecular weight of about 200 to 1000, and dipropylene glycol; and alkyl ethers such as diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether (butyl carbitol), and diethylene glycol dimethyl ether. Among these, from the viewpoints of less odor, easy availability, and fluidity of the detergent composition, ethanol, glycerin, 3-methoxy-3-methyl-1-butanol, propylene glycol, polyethylene glycol having a molecular weight of about 200 to 1000, and diethylene glycol monobutyl ether (butyl carbitol) are preferable, and ethanol, 3-methoxy-3-methyl-1-butanol, and polyethylene glycol having a molecular weight of about 200 to 1000 are more preferable. From the viewpoints of suppressing precipitation of the component (B) and maintaining a uniform appearance when the detergent composition is stored at a low temperature and cold water solubility, 3-methoxy-3-methyl-1-butanol and polyethylene glycol having a molecular weight of about 200 to 1000 are preferable as the water-miscible organic solvent. The water-miscible organic solvent may be used alone or in combination of two or more. The content of the water-miscible organic solvent is preferably 1 to 30% by mass, more preferably 3 to 20% by mass, and still more preferably 5 to 15% by mass based on the total mass of the detergent composition.

[0044] (Other surfactants) Examples of other surfactants (excluding soap) include cationic surfactants, amphoteric surfactants, semi-polar surfactants, and the like. Other surfactants may be used alone or in combination of two or more.

[0045] The total content of all surfactants (excluding soap) contained in the detergent composition (hereinafter also referred to as "total surfactant amount") is preferably 28% by mass or more, more preferably 28 to 90% by mass, still more preferably 35 to 70% by mass, even more preferably more than 35% by mass and 70% by mass or less, particularly preferably 38 to 65% by mass, and most preferably 40 to 60% by mass based on the total mass of the detergent composition. When the total surfactant amount is at least the above lower limit value, the sebum detergency is improved. When the total surfactant amount is at most the above upper limit value, the low-temperature stability of the detergent composition is improved.

[0046] (Other chelating agents) As other chelating agents, for example, chelating agents having a trivalent to tetravalent carboxylic acid group or a salt thereof are preferred. Specific examples thereof include citric acid or a salt thereof, aminocarboxylic acid-based chelating agents or salts thereof. Aminocarboxylic acid refers to a compound containing at least one primary to tertiary amino group and at least one carboxyl group in one molecule, and an aminocarboxylic acid-based chelating agent refers to a chelating agent that is an aminocarboxylic acid. As the aminocarboxylic acid chelating agent, those known in the field of detergents can be used. Specific examples include methylglycine diacetic acid (MGDA), methylglycine diacetate, L-glutamic acid diacetic acid (GLDA), L-glutamic acid diacetate, diethylenetriaminepentaacetic acid (DTPA), diethylenetriaminepentaacetate, L-aspartic acid-N,N-diacetic acid (ASDA), L-aspartic acid-N,N-diacetate, and the like. Among these, citric acid or its salt is preferable. Other chelating agents may be used alone or in combination of two or more.

[0047] The content of other chelating agents is preferably 0.01 to 5% by mass, more preferably 0.01 to 1% by mass, based on the total mass of the detergent composition. If the content of other chelating agents is at least the above lower limit value, the low-temperature stability of the detergent composition is improved. If the content of other chelating agents is at most the above upper limit value, when the detergent composition contains an enzyme, the stability of the enzyme is improved.

[0048] (Higher fatty acid or its salt) Examples of the higher fatty acid or its salt include single fatty acids such as caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, hydroxystearic acid, oleic acid, behenic acid, or their salts; mixed fatty acids such as coconut fatty acid, tallow fatty acid, or their salts. As the higher fatty acid, lauric acid, myristic acid, palmitic acid, and coconut fatty acid are preferable, and coconut fatty acid is more preferable. Examples of the form of the salt of the higher fatty acid include alkali metal salts (such as sodium salt, potassium salt), alkaline earth metal salts (such as magnesium salt, calcium salt), ammonium salts, alkanolamine salts (such as monoethanolamine salt, diethanolamine salt), and the like. The higher fatty acid or its salt may be used alone or in combination of two or more.

[0049] The content of the higher fatty acid or its salt is preferably 0.5 to 10% by mass, more preferably 1 to 8% by mass, and still more preferably 1.5 to 5% by mass with respect to the total mass of the detergent composition. If the content of the higher fatty acid or its salt is at least the above lower limit value, the defoaming property is improved. If the content of the higher fatty acid or its salt is at most the above upper limit value, the low-temperature stability of the detergent composition is improved.

[0050] (Redeposition inhibitor) Examples of the redeposition inhibitor include water-soluble polymers having at least one repeating unit selected from alkylene terephthalate units and alkylene isophthalate units and at least one repeating unit selected from oxyalkylene units and polyoxyalkylene units. Specific examples of such water-soluble polymers include the product with the trade name "TexCare SRN-100" (manufactured by Clariant, mass average molecular weight 2000 to 3000), the product with the trade name "TexCare SRN-300" (manufactured by Clariant, mass average molecular weight 7000), the product with the trade name "Repel-O-Tex Crystal" (manufactured by Rhodia), the product with the trade name "Repel-O-Tex QC" (manufactured by Rhodia), and the like. Among these, TexCare SRN-100 is preferred because of its high solubility in water and excellent liquid stability. Also, from the viewpoint of excellent handleability, it is preferable to use the product with the trade name TexCare SRN-170C (manufactured by Clariant), which is a 70% aqueous solution of the above TexCare SRN-100, as another redeposition inhibitor. The redeposition inhibitor may be used alone or in combination of two or more. The content of the redeposition inhibitor is preferably 0.01 to 5% by mass, more preferably 0.05 to 4% by mass, and still more preferably 0.1 to 3% by mass with respect to the total mass of the detergent composition.

[0051] (Antibacterial agent) Examples of the antibacterial agent include dichlorosan, triclosan, isopropylmethylphenol, polylysine, polyhexamethylenebiguanide, etc. Among these, the antibacterial agent having a diphenyl structure is preferable, and dichlorosan and triclosan are more preferable. The antibacterial agent may be used alone or in combination of two or more. The content of the antibacterial agent is preferably 0.001 to 10% by mass, more preferably 0.01 to 5% by mass, and still more preferably 0.03 to 1% by mass based on the total mass of the detergent composition.

[0052] (Inorganic reducing agent) Examples of the inorganic reducing agent include sulfurous acid; sulfites such as sodium sulfite, potassium sulfite, calcium sulfite, magnesium sulfite, barium sulfite, ammonium sulfite, etc.; bisulfurous acid; bisulfites such as sodium bisulfite, potassium bisulfite, calcium bisulfite, magnesium bisulfite, ammonium bisulfite, etc.; pyrosulfites such as sodium pyrosulfite, potassium pyrosulfite, etc. The inorganic reducing agent may be used alone or in combination of two or more. The content of the inorganic reducing agent is preferably 0.05 to 2% by mass, more preferably 0.1 to 1.5% by mass, and still more preferably 0.3 to 1% by mass based on the total mass of the detergent composition.

[0053] (Enzyme) The enzyme means an enzyme preparation. As the enzyme, a liquid enzyme preparation or a solid (granular) enzyme preparation may be used. When using a solid enzyme preparation, it is preferable from the viewpoint of enzyme stability that a part or the whole amount thereof exists in a solid state in the detergent composition.

[0054] Examples of the enzyme include protease, amylase, lipase, cellulase, mannanase, etc. As the protease, a protease having serine, histidine, and aspartic acid in the molecule, such as serine protease, is preferred. Specifically, as protease preparations, those with trade names Savinase 16L, Savinase Ultra 16L, Savinase Ultra 16XL, Savinase Evity 16L, Everlase 16L TypeEX, Everlase Ultra 16L, Esperase 8L, Alcalase 2.5L, Alcalase Ultra 2.5L, Liquanase 2.5L, Liquanase Ultra 2.5L, Liquanase Ultra 2.5XL, Coronase 48L, Progress Uno 100L, Deozyme, Savinase Evity 12T, Kannase Evity 24T, which are available from Novozymes; those with trade names Purafect L, Purafect OX, Properase L, which are available from Genencore; those with trade names EFFECTENZ P150, EFFECTENZ P100, PREFERENZ P100, etc., which are available from DuPont, etc. can be mentioned.

[0055] As the amylase, as amylase preparations, those with trade names Termamyl 300L, Termamyl Ultra 300L, Duramyl 300L, Stainzyme 12L, Stainzyme Plus 12L, Amplify 12L, Amplify Prime 100L, Stainzyme Plus 12T, which are available from Novozymes; those with trade name Maxamyl, which is available from Genencore; those with trade name EFFECTENZ S100, which is available from DuPont; those with trade name Pullulanase Amano, which is available from Amano Enzyme Inc.; those with trade name DB-250, which is available from Seikagaku Corporation, etc. can be mentioned. As the lipase, as lipase preparations, those with trade names Lipex 100L, Lipolase 100L, Lipex 100T, etc., which are available from Novozymes can be mentioned. Examples of cellulases include Endolase 5000L, Celluzyme 0.4L, Carezyme 4500L, and Celluclean 4500T, which are commercially available from Novozymes under their respective product names; and REVITALENTZ 2000, which is commercially available from DuPont. Examples of mannanases include Mannaway 4L and Mannaway 4.0T, which are commercially available from Novozymes under their respective product names as mannanase preparations. Examples of multi - enzymes containing two or more enzymes include Medley Core 210L, Medley Core 200L, Medley Boost 300L, Medley Advance 200T, Medley Glow 200L, Medley Brilliant 100L, Medley Essential 150L, Medley Core 200T, Medley CleanR, Medley Essential 200T, Medley SmartR, Medley Boost 200L, Medley Boost 200T, Medley SuperioR 100T, etc. The enzyme may be used alone or in combination of two or more.

[0056] The content of the enzyme is preferably 0.01 - 3% by mass, more preferably 0.05 - 2.5% by mass, and even more preferably 0.1 - 2% by mass based on the total mass of the detergent composition. If the content of the enzyme is above the above - mentioned lower limit, the detergency will be further enhanced. If the content of the enzyme is below the above - mentioned upper limit, precipitation of the enzyme can be suppressed and a uniform appearance can be maintained well.

[0057] The detergent composition preferably contains cellulase ((D) component) among the enzymes. By containing the (D) component, the detergent composition can enhance the anti - redeposition power. This is considered to be because the co - existence of the (D) component and the (C) component synergistically enhances the action of the (D) component.

[0058] (D) component, for example, a commercially available cellulase preparation such as a cellulase preparation available from Novozymes can be used. As the cellulase preparation, there are a granule preparation and a liquid preparation, but for the present application, the liquid preparation is preferred from the viewpoint of production suitability. (D) component, an endoglucanase that decomposes the amorphous part of cellulose is preferred, and further, an endoglucanase with high enzyme activity, that is, an endoglucanase with a high value of the amount of Glu-like reducing end generated by the cellulose decomposition reaction is preferred. Specifically, it is an endoglucanase with a Glu-like reducing end generation amount of 50 μM or more, preferably 80 μM or more, and more preferably 100 μM or more. As such an endoglucanase, for example, "Celluclean 5000L, Glu-like reducing end generation amount: 127 μM" and "Carezyme Elite 100L, Glu-like reducing end generation amount: 69 μM" are preferred, and "Celluclean 5000L" is most preferred.

[0059] ~Method for measuring Glu-like reducing end generation amount~ The method for measuring the Glu-like reducing end generation amount of the (D) component will be described below. Dissolve 17.6 g of sodium dihydrogen phosphate dihydrate (manufactured by Junsei Chemical Co., Ltd.) in 900 mL of ion-exchanged water, adjust the pH to 7.0 using a 1 M aqueous sodium hydroxide solution, and then make up to 1000 mL with ion-exchanged water to prepare a 0.1 M phosphate buffer. Dissolve or dilute the cellulase enzyme sample to 30 ppm with a 0.1 M phosphate buffer to prepare an enzyme solution. Disperse 5 g of powdered cellulose (cotton linter: manufactured by Sigma) in 495 g of ion-exchanged water to prepare a substrate solution. Dissolve 1.8 g of PAHBAH (p-hydroxybenzohydrazide, manufactured by Wako Pure Chemical Industries, Ltd.), 6.0 g of potassium sodium tartrate tetrahydrate (manufactured by Junsei Chemical Co., Ltd.), and 0.23 g of Bismuth(III)acetate (Alfa AESAR017574) in 2 mass% sodium hydroxide, and make up to 120 mL to prepare a PAHBAH solution.

[0060] The samples are measured according to the following procedure. After putting 2 mL of enzyme solution, 2 mL of 0.1 M phosphate buffer, and 2 mL of substrate solution into a test tube and stirring, an enzyme reaction is carried out in a water bath at 25 °C for 15 hours. After the reaction is completed, 1 mL of 2% by mass sodium hydroxide is added to each sample to stop the reaction. Then, centrifugation is performed at 4000 rpm, 25 °C for 10 minutes using a centrifuge (manufactured by Hitachi, Ltd., himac CF7D2). After that, 4 mL of the supernatant is taken, 2 mL of PAHBAH solution is added, and a heating reaction is carried out in boiling water for 10 minutes. After water cooling, the absorbance at 410 nm is measured using an absorptiometer (manufactured by Hitachi, Ltd., U-3010) with water as a control.

[0061] The blank is measured according to the following procedure. After putting 2 mL of enzyme solution and 2 mL of 0.1 M phosphate buffer into a test tube and stirring, an enzyme reaction is carried out in a water bath at 25 °C for 15 hours. After the reaction is completed, 1 mL of 2% by mass sodium hydroxide is added to each sample to stop the reaction, and 2 mL of substrate solution is added. Then, centrifugation is performed at 4000 rpm, 25 °C for 10 minutes using a centrifuge (manufactured by Hitachi, Ltd., himac CF7D2). After that, 4 mL of the supernatant is taken, 2 mL of PAHBAH solution is added, and a heating reaction is carried out in boiling water for 10 minutes. After water cooling, the absorbance at 410 nm is measured using an absorptiometer (manufactured by Hitachi, Ltd., U-3010) with water as a control. The difference in absorbance between the sample and the blank is taken as the measured value, and the amount of reducing sugar produced is calculated from a calibration curve prepared using glucose of a predetermined concentration.

[0062] The content of component (D) in the cleaning liquid is preferably in an amount of 0.033 to 16.666 mass ppm, more preferably 0.166 to 16.666 mass ppm, and even more preferably 0.166 to 3.333 mass ppm. When the content of component (D) is at least the above lower limit value, a high anti-redeposition effect can be obtained. It should be noted that even if the content of component (D) exceeds the above upper limit value, it is difficult to observe an improvement in the anti-redeposition effect.

[0063] The content of component (D) relative to the total mass of the detergent composition is preferably 0.01 to 5% by mass, more preferably 0.05 to 5% by mass, and even more preferably 0.05 to 1% by mass. When the content of component (D) is at least the above lower limit value, a high anti-redeposition effect can be obtained. When the content of component (D) is at most the above upper limit value, the appearance stability is good. The content of component (D) in the detergent composition is the content as a formulation.

[0064] (Enzyme stabilizer) Examples of the enzyme stabilizer include boric acid, borax, formic acid or its salts, lactic acid or its salts, calcium salts such as calcium chloride and calcium sulfate, and the like. The enzyme may be used alone or in combination of two or more. The content of the enzyme stabilizer is preferably 0.01 to 2% by mass, more preferably 0.05 to 1.5% by mass, and even more preferably 0.1 to 1% by mass relative to the total mass of the detergent composition.

[0065] (Colorant) The colorant is not particularly limited, and examples thereof include dyes described in the "Legal Dye Handbook" (Japan Cosmetic Industry Association), and those obtained by chemically modifying a water-soluble polymer or the like at the end of the structure of the chromophore. The colorant may be used alone or in combination of two or more. The content of the colorant is preferably 0.0001 to 0.05% by mass, more preferably 0.0003 to 0.03% by mass relative to the total mass of the detergent composition.

[0066] (Fragrance) The fragrance includes a single fragrance raw material or a fragrance composition composed of a fragrance raw material, a fragrance solvent, a fragrance stabilizer, etc., and a fragrance usually used in liquid detergents can be blended. Also, capsule fragrances may be blended. The fragrance may be used alone or in combination of two or more. The content of the fragrance is preferably 0.01 to 5% by mass relative to the total mass of the detergent composition.

[0067] (pH adjuster) Examples of the pH adjuster include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide; basic amino acids such as arginine and lysine; ammonia; alkali metal carbonates such as sodium carbonate and potassium carbonate; alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine; and acid agents such as sulfuric acid, hydrochloric acid, phosphoric acid, and p-toluenesulfonic acid. Among these, monoethanolamine and p-toluenesulfonic acid are preferred. The pH adjuster may be used alone or in combination of two or more. The addition amount of the pH adjuster may be appropriately set to adjust the detergent composition to a predetermined pH.

[0068] (Physical properties) (pH) The pH of the detergent composition at 25°C is preferably 5.5 to 8.5, more preferably 5.7 to 8.3, and even more preferably 6.0 to 8.0. If the pH of the detergent composition is at or above the lower limit value, the stability of each component contained in the detergent composition is enhanced. If the pH of the detergent composition is at or below the upper limit value, damage to fiber products such as clothing can be prevented. In addition, yellowing and pigment fading of the detergent composition can be further suppressed, and a uniform appearance can be maintained well. The pH of the detergent composition can be adjusted with a pH adjuster. The pH of the detergent composition is a value measured at 25°C for the measurement object using a pH meter (manufactured by Toa DKK Corporation, product name "HM-30G").

[0069] (Manufacturing method) The manufacturing method of the detergent composition is not particularly limited, and the detergent composition can be manufactured according to a conventional method. For example, the detergent composition can be obtained by mixing the components that make up the detergent composition. Also, for example, the above-described component (A), component (B), component (C), a part of water, and one or more optional components other than the pH adjuster, if necessary, are mixed, and if necessary, adjusted to a predetermined pH using a pH adjuster, and then the remaining water is mixed to produce the detergent composition.

[0070] <Usage method> As a method of using the detergent composition, for example, a method of putting the detergent composition into the detergent composition inlet of a washing machine and then operating the washing machine, a method of putting the detergent composition into water together with the object to be washed during washing, a method of immersing the object to be washed in a washing liquid prepared by dissolving the detergent composition in water in advance, a method of directly applying the detergent composition to the object to be washed and leaving it for, for example, 3 minutes to 24 hours, and then performing normal washing, etc. can be mentioned.

[0071] Also, it is also preferable to use a washing machine equipped with a detergent automatic dosing device that has been put into practical use in recent years. The detergent automatic dosing device is a device that automatically injects the detergent composition into the washing tub from a tank containing the detergent composition through a filter for removing dust provided at the bottom of the tank and a dosing pipe. A metering means such as a syringe pump is provided in the middle of the dosing pipe, and a fixed amount set according to the amount of the laundry, etc. can be transferred from the tank to the washing tub. By using the detergent automatic dosing device, not only can the labor of metering be saved, but also it is possible to avoid the detergent composition adhering to the hands or spilling during metering and soiling the washing machine and the surroundings.

[0072] Also, it is also preferable to use an automatic dispenser that can automatically discharge a predetermined amount of liquid. When using an automatic dispenser, it is also preferable because even a small amount of the detergent composition can be accurately metered, so it is easy to exhibit sufficient detergency and waste due to overuse can be avoided. Among automatic dispensers, there are also those on the market that use an infrared sensor or the like to automatically discharge without touching a switch or the like. By using such an automatic dispenser, it is possible to measure the cleaning agent composition simply by inserting a container held in one hand, and the effect of reducing the burden on the user is great.

[0073] In addition, when using an automatic dispenser, it is also preferable to receive the cleaning agent composition discharged into a soft container and directly put the soft container into the washing machine. Thereby, the entire amount of the discharged cleaning agent composition can be surely dissolved in the cleaning liquid. Examples of the material of the soft container that can be directly put into the washing machine include, for example, silicone resin, polyvinyl chloride, elastomer, soft polyester, soft polypropylene, polyurethane, and the like.

[0074] Examples of the objects to be washed include, for example, fibrous products such as clothing (apparel), dishcloths, towels, sheets, curtains, etc. The material of the fibrous product is not particularly limited, and any of natural fibers such as cotton, silk, and wool, and chemical fibers such as polyester and polyamide may be used. When the cleaning agent composition is dissolved in water for use, it is preferably diluted, for example, 5 to 6000 times (by volume). The bath ratio (mass of the cleaning liquid during washing / mass of the clothing), which is the amount of water per amount of clothing, is preferably 5 or more for a drum-type washing machine and 10 or more for a vertical-type washing machine.

[0075] <Function and effect> Since the cleaning agent composition of the present embodiment described above contains the above-mentioned component (C) in addition to the above-mentioned components (A) and (B) in a specific mass ratio and content, it has excellent detergency against dye stains. The dye stain is not particularly limited, and examples thereof include stains of phenolic dyes contained in, for example, red wine, black tea, etc., and stains of dyes contained in coffee, etc. The cleaning agent composition of the present embodiment has excellent detergency against stains of phenolic dyes, and among them, particularly excellent detergency against wine stains.

Example

[0076] Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited by the following description. In this example, "%" represents "mass%" unless otherwise specified.

[0077] "Raw materials used" (A) As the component, the following compounds were used. · A-1: Polyoxyethylene alkyl (C12-C14) ether (average number of moles of ethylene oxide added: 15) "AE(15EO)", obtained by adding 15 moles of ethylene oxide equivalent to natural alcohol. In the general formula (a1), R 1 is one or more linear alkyl groups selected from an alkyl group having 12 carbon atoms and an alkyl group having 14 carbon atoms, R 2 is a hydrogen atom, s1 is 15, t1 is 0, and u1 is 0. It was synthesized by the following synthesis method. · A-2: Polyoxyethylene alkyl (C12-C14) ether (average number of moles of ethylene oxide added: 7) "AE(7EO)", obtained by adding 7 moles of ethylene oxide equivalent to natural alcohol. In the general formula (a1), R 1 is one or more linear alkyl groups selected from an alkyl group having 12 carbon atoms and an alkyl group having 14 carbon atoms, R 2 is a hydrogen atom, s1 is 7, t1 is 0, and u1 is 0. It was synthesized by the following synthesis method. · A-3: Primary branched garbet alcohol type nonionic surfactant (10EO) (manufactured by BASF, trade name "Lutensol XP100"), obtained by subjecting pentanol to a garbet reaction and adding 10 moles of ethylene oxide equivalent to the resulting C10 alcohol. In the general formula (a1), R 1 is R 5 -CHR 6 -CH2-, R 2 is a hydrogen atom, R 5 is an n-pentyl group, R 6 is an n-propyl group, s1 is 10, t1 is 0, and u1 is 0. ·A-4: Polyoxyethylene polyoxypropylene alkyl ether (average number of moles of ethylene oxide added: 15, average number of moles of propylene oxide added: 3), obtained by adding an average of 15 moles of ethylene oxide and an average of 3 moles of propylene oxide to a linear primary alcohol having 12 to 14 carbon atoms (manufactured by Lion Chemical Co., Ltd., trade name "CLAEP-15030", in the general formula (a1), R 1 is a linear alkyl group having 12 to 14 carbon atoms, R 2 is a hydrogen atom, s1 is 15, A 1 O is PO, t1 is 3, and u1 is 0).

[0078] <Synthesis method of A-1> 861.2 g of natural alcohol (manufactured by Procter & Gamble Co., trade name "CO-1214") and 2.0 g of a 30% by mass aqueous NaOH solution were charged into a pressure-resistant reaction vessel, and the inside of this reaction vessel was purged with nitrogen. Then, after dehydration at a temperature of 100 °C and a pressure of 2.0 kPa or less for 30 minutes, the temperature was raised to 160 °C. Next, while stirring the reaction solution, 760.6 g of ethylene oxide (gaseous) was gradually added to the reaction solution. At this time, ethylene oxide was added through a blowing tube while adjusting the addition rate so that the reaction temperature did not exceed 180 °C. After the addition of ethylene oxide was completed, the mixture was aged at a temperature of 180 °C and a pressure of 0.3 MPa or less for 30 minutes, and then unreacted ethylene oxide was distilled off at a temperature of 180 °C and a pressure of 6.0 kPa or less for 10 minutes. Next, after cooling the temperature to 100 °C or less, 70% by mass p-toluenesulfonic acid was added for neutralization so that the pH of a 1% by mass aqueous solution of the reaction product became 7, and A-1 was obtained.

[0079] <Synthesis method of A-2> A-2 was obtained by the same synthesis method as A-1, except that the addition amount of ethylene oxide (gaseous) was changed to 355.0 g.

[0080] (Component (B) used the following compound.) · B-1: Linear alkylbenzene sulfonic acid having an alkyl group with 10 to 14 carbon atoms (manufactured by Lion Corporation, trade name "Lipon LH-200"). · B-2: Polyoxyethylene alkyl ether sulfate (in the general formula (b1), R 9 is one or more linear alkyl groups selected from an alkyl group having 12 carbon atoms and an alkyl group having 14 carbon atoms, v is 1, w is 0, M is sodium, and the proportion of the compound where v is 0 and w is 0 with respect to the whole B-2 is 43% by mass. The one synthesized by the following synthesis method).

[0081] <Synthesis method of B-2> 400 g of natural alcohol (trade name "CO-1270" manufactured by Procter & Gamble) and 0.8 g of potassium hydroxide catalyst as a reaction catalyst were charged into a pressure-resistant reaction vessel. After purging the inside of this reaction vessel with nitrogen, the temperature was raised while stirring. Next, while stirring the reaction solution, 91 g of ethylene oxide (gaseous) was gradually added to the reaction solution and reacted to obtain an alcohol ethoxylate. The ethylene oxide was added through a blowing tube while adjusting the addition rate so that the reaction temperature did not exceed 180°C and the pressure did not exceed 0.3 MPa. As a result of analysis using a gas chromatograph: GC-5890 manufactured by Hewlett-Packard, a detector: hydrogen flame ionization detector (FID), and a column: Ultra-1 (manufactured by HP, L25m × φ0.2mm × T0.11μm), the obtained alcohol ethoxylate had an average addition mole number of ethylene oxide of 1.0. Also, the amount of the compound to which ethylene oxide was not added was 43% by mass with respect to the whole obtained alcohol ethoxylate. Next, 237 g of the alcohol ethoxylate obtained above was placed in a 500 mL flask equipped with a stirrer, purged with nitrogen, and then 96 g of liquid anhydrous sulfuric acid (sulfan) was slowly dropped while maintaining the reaction temperature at 40°C. After the dropping was completed, stirring was continued for 1 hour (sulfation reaction) to obtain polyoxyethylene alkyl ether sulfate. Then, this was neutralized with an aqueous sodium hydroxide solution to obtain B-2.

[0082] As the component (C) or its substitute, the following compounds were used. · C-1: Trisodium ethylenediaminedisuccinate (EDDS) (manufactured by Kirest Co., Ltd., trade name "Kirest EDDS-35"). · C-2: Tetrasodium hydroxyiminodisuccinate (HIDS) (manufactured by Nippon Shokubai Co., Ltd., trade name "Biodegradable Chelating Agent (HIDS (registered trademark))"). · C-3: 1,3-Propanediaminetetraacetate (PDTA) (manufactured by Kirest Co., Ltd., trade name "Kirest PD-4H"). · C-4: Trisodium hydroxyethylethylenediaminetriacetate (HEDTA) (manufactured by Kirest Co., Ltd., trade name "Kirest H"). · C-5: 1,3-Diamino-2-hydroxypropanetetraacetate (DPTA-OH) (manufactured by Kirest Co., Ltd., trade name "Kirest RA"). · C-6: Hexasodium triethylenetetraaminehexaacetate (TTHA) (manufactured by Kirest Co., Ltd., trade name "Kirest Q"). · C-7: Potassium ethylenediaminetetraacetate (EDTA) (manufactured by Kirest Co., Ltd., trade name "Kirest 4K-50", substitute for component (C)). · C-8: Trisodium methylglycinediacetate (MGDA) (manufactured by BASF, trade name "Trilon M Liquid JP", substitute for component (C)).

[0083] As the component (D), the following enzymes were used. · D-1: Cellulase (manufactured by Novozymes Japan Co., Ltd., trade name "Celluclean 5000L").

[0084] As optional components, the following compounds were used. · Ethanol: Manufactured by Nippon Alcohol Sales Co., Ltd., trade name "Specified Alcohol 95 Degrees Synthetic". · PEG1000: Polyethylene glycol (manufactured by Junsei Chemical Co., Ltd., trade name "PEG#1000", mass average molecular weight = 1000). · Coconut fatty acid: manufactured by NOF Corporation, product name "Coconut Fatty Acid". · Citric acid: manufactured by Iwata Chemical Industry Co., Ltd., product name "Anhydrous Citric Acid". · Dichlorosan: 5-chloro-2-(4-chlorophenoxy)phenol (manufactured by BASF, product name "TINOSAN® HP100"). · Solfit: 3-methoxy-3-methyl-1-butanol (manufactured by Kuraray Co., Ltd., product name "Solfit"). · Dye: manufactured by Kisei Kasei Co., Ltd., product name "Green No. 3". · Enzyme: multi-enzyme (manufactured by Novozymes, product name "Medley Core 210L, enzyme liquid preparation). · Fragrance: fragrance composition A described in Tables 11 to 18 of JP-A-2002-146399. · MEA: monoethanolamine (manufactured by MIWON Chemical, product name "monoethanolamine"). · pTS: p-toluenesulfonic acid (manufactured by Kyowa Kirin Co., Ltd., product name "PTS acid"). · Water: ion-exchanged water.

[0085] "Measurement and Evaluation" <Evaluation of detergency against wine stains> 100 μL of commercially available red wine was dropped onto a polyester cloth cut into 5 cm × 5 cm and air-dried overnight at room temperature, which was used as the "contaminated cloth". As the washing tester, a Terg-O-tometer (manufactured by UNITED STATES TESTING) was used. As the washing liquid, a composition prepared by adding the detergent composition to 900 mL of water (25°C, 5°DH) so that the concentration became 333 volume ppm and stirring for 30 seconds was used. The washing liquid, 5 pieces of the above contaminated cloth, and a washing cotton cloth were put into the washing tester, and washed at 120 rpm and 25°C for 10 minutes in accordance with a bath ratio of 20 times. Then, it was transferred to a two-tank washing machine (manufactured by Mitsubishi Electric Corporation, product name "CW-C30A1-H1"), rinsed in 30 L of water (25°C, 5°DH) for 3 minutes, dehydrated for 1 minute, and then air-dried. For the non-soiled cloth and the soiled cloth before and after washing, the reflectance was measured with a color difference meter (manufactured by Nippon Denshoku Industries Co., Ltd., product name "SE7700 type"), and the washing rate (%) was calculated from the following formula (i). Note that the "non-soiled cloth" means the original polyester cloth (raw cloth) without the attachment of dirt (wine). Washing rate (%) = (K / S of the soiled cloth before washing - K / S of the soiled cloth after washing) / (K / S of the soiled cloth before washing - K / S of the non-soiled cloth) × 100 ···(i) (In formula (i), K / S = (1 - R / 100) 2 / (2R / 100). R is the reflectance (%).)

[0086] The washing rate (%) was calculated for 5 soiled cloths and the average value was obtained, and the detergency against wine stains was evaluated based on the following criteria. "◎" and "○" were regarded as passing. (Evaluation criteria) ◎: The average value of the washing rate is 60% or more. 〇: The average value of the washing rate is 50% or more and less than 60%. △: The average value of the washing rate is 45% or more and less than 50%. ×: The average value of the washing rate is less than 45%.

[0087] <Method for evaluating anti-redeposition property> Using the liquid detergent to be evaluated, a laundering treatment was performed by repeating the following washing process, rinsing process, and drying process in this order 3 times.

[0088] (1) Washing process: As the objects to be washed, the following cotton cloth, polyester (PE) cloth, wet artificial soiled cloth, and skin shirt were used. Cotton cloth: 5 pieces of cotton knitted fabric (manufactured by Taniguchi Shoten) 5 cm × 5 cm as the re-deposition judgment cloth. Wet artificial soiled cloth: 20 pieces of soiled cloth (with dirt of the composition of oleic acid 28.3%, triolein 15.6%, cholesteryl oleate 12.2%, liquid paraffin 2.5%, squalene 2.5%, cholesterol 1.6%, gelatin 7.0%, mud 29.8%, carbon black 0.5% (mass ratio)) manufactured by the Laundry Science Association. Muscle shirt: A muscle shirt (LL size, manufactured by DVD Co., Ltd.) cut into small pieces (about 3 cm × 3 cm). In the washing process, 900 mL of 3°DH hard water at 25°C was placed in a Terg-o-tometer (manufactured by UNITED STATES TESTING Co., Ltd.), 0.6 g of the detergent composition of each example was added thereto, and then the object to be washed was put in. Thereafter, 3°DH hard water was added to adjust the bath ratio to 20 times, and it was washed at 120 rpm and 25°C for 10 minutes.

[0089] (2) Rinsing process: After dehydrating the object to be washed for 1 minute, 900 mL of 3°DH hard water at 25°C was added, and it was rinsed at 120 rpm and 25°C for 3 minutes. This operation (dehydration, rinsing) was repeated twice. For the second time, a predetermined amount of softener was added to 900 mL of 3°DH hard water at 25°C for rinsing. As the softener, Room-Dried Sofuran (manufactured by Lion Corporation) was used.

[0090] (3) Drying process: After dehydrating the rinsed object to be washed for 1 minute, only the recontamination determination cloth (cotton cloth, PE cloth) was taken out, sandwiched between filter papers, and dried with an iron.

[0091] (4) Measurement of ΔZ Using a reflectometer (spectrophotometric color difference meter SE2000 (trade name), manufactured by Nippon Denshoku Industries Co., Ltd.), the reflectance (Z value) of the recontamination determination cloth before and after the washing treatment was measured, and ΔZ was obtained from the following formula. ΔZ = (Z value before the washing treatment) - (Z value after the washing treatment) For ΔZ in each recontamination determination cloth of the cotton cloth and the PE cloth, the average value of 5 pieces was obtained. And, according to the following judgment criteria using this average value as an index, the recontamination prevention property of the liquid detergent on the cotton cloth and the PE cloth was evaluated. In the following judgment criteria, ◎ and ○ were regarded as passing. (Evaluation criteria) ◎: ΔZ is less than 8. ○: ΔZ is 8 or more and less than 10. △: ΔZ is 10 or more and less than 11. ×: ΔZ is 11 or more.

[0092] "Examples 1-1 to 1-22, Comparative Examples 1-1 to 1-5" Into a 500 mL beaker, according to the compounding compositions described in Tables 1 to 3, component (A), component (B), component (C), and optional components were added, and they were sufficiently stirred with a three-one motor stirrer (manufactured by AS ONE Corporation) to obtain a detergent composition. The pH at 25 °C of the obtained detergent composition was measured using a pH meter (manufactured by TOA DKK Corporation, product name "HM-30G"). The results are shown in Tables 1 to 3. Also, using the obtained detergent composition, the detergency against wine stains was evaluated. The results are shown in Tables 1 to 3.

[0093]

Table 1

[0094]

Table 2

[0095]

Table 3

[0096] In Tables 1 to 3, the compounding amounts (mass %) of each component are all ratios to the total mass of the detergent composition, and except for the cases where specified, the values are in terms of pure content conversion. Note that "balance", which is the compounding amount of water, is the amount required to make the total compounding amount (mass %) of all the compounding components contained in the detergent composition 100 mass %. The "appropriate amount" of MEA (monoethanolamine) and pTS (p-toluenesulfonic acid) is the amount required to adjust the pH of the detergent composition to 7. An empty cell in the compounding amount means that the component is not compounded (compounding amount 0 mass %). In addition, the "total amount of A + B" in Tables 1 to 3 is the total amount (mass %) of the content of component (A) and the content of component (B) with respect to the total mass of the detergent composition. The "A / B ratio" is the mass ratio of the content of component (A) to the content of component (B). The "C / A ratio" is the mass ratio of the content of component (C) or its substitute to the content of component (A).

[0097] As is clear from Tables 1 and 2, the detergent compositions obtained in each example were excellent in detergency against wine stains. On the other hand, as is clear from Table 3, the detergent composition obtained in Comparative Example 1-1 where the A + B amount was less than 28% by mass was inferior in detergency against wine stains. The detergent composition obtained in Comparative Example 1-2 where the A / B ratio was less than 2.0 was inferior in detergency against wine stains. The detergent compositions obtained in Comparative Examples 1-3 and 1-4 that did not contain component (C) and used a substitute for component (C) were inferior in detergency against wine stains. The detergent composition obtained in Comparative Example 1-5 that did not contain component (C) was inferior in detergency against wine stains.

[0098] "Examples 2-1 to 2-11, Comparative Examples 2-1 to 2-4" According to the compositions in Tables 4 to 5, detergent compositions of each example were obtained in the same manner as in Example 1-1. The pH of the obtained detergent composition at 25°C was measured using a pH meter (manufactured by Toa DKK Corporation, product name "HM-30G"). The results are shown in Tables 4 to 5. In addition, using the obtained detergent composition, evaluations of detergency against wine stains and anti-redeposition power were carried out. The results are shown in Tables 4 to 5.

[0099]

Table 4

[0100]

Table 5

[0101] In Tables 4 to 5, the blending amounts (mass %) of each component are all ratios to the total mass of the detergent composition, and unless otherwise specified, the values are shown in terms of pure components. The "balance", which is the blending amount of water, is the amount required to make the total blending amount (mass %) of all the blending components contained in the detergent composition equal to 100 mass %. The "appropriate amount" of MEA (monoethanolamine) and pTS (p-toluenesulfonic acid) is the amount required to adjust the pH of the detergent composition to 7. A blank in the blending amount means that the component is not blended (blending amount 0 mass %). Also, in Tables 4 to 5, the "amount of A + B" is the total amount (mass %) of the content of component (A) and the content of component (B) with respect to the total mass of the detergent composition. The "A / B ratio" is the mass ratio of the content of component (A) to the content of component (B). The "C / A ratio" is the mass ratio of the content of component (C) or its substitute to the content of component (A).

[0102] As is clear from Table 4, the detergent compositions obtained in each example were excellent in detergency against wine stains. In Examples 2-7 to 2-11 containing component (D), the color difference ΔZ in anti-redeposition power was smaller than that in Examples 2-1 to 2-6 not containing component (D). As is clear from Table 5, Comparative Example 2-1 not containing component (C) had "×" in detergency and anti-redeposition power against wine stains. Comparative Examples 2-2 and 2-3, which did not contain component (C) and used a substitute for component (C), were inferior in detergency against wine stains and inferior in anti-redeposition power. Comparative Example 2-4, which did not contain component (C) and contained component (D), had "○" in anti-redeposition power but was inferior in detergency against wine stains.

Claims

1. Component (A): a nonionic surfactant, (B) component: a non-soap anionic surfactant; Component (C): one or more chelating agents selected from ethylenediaminedisuccinic acid, hydroxyiminodisuccinic acid, 1,3-propanediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, 1,3-diamino-2-hydroxypropanetetraacetic acid, triethylenetetraaminehexaacetic acid, and salts thereof; Contains The total content of the (A) component and the (B) component is 28% by mass or more based on the total mass of the liquid detergent composition for textile products, A liquid detergent composition for textile products, in which the mass ratio of the (A) component to the (B) component is 2 or more.

2. The liquid detergent composition for textile products according to claim 1, wherein the mass ratio of the component (C) to the component (A) is 0.0001 to 0.

1.

3. The liquid detergent composition for textile products according to claim 1 or 2, wherein the content of the component (C) is 0.01 to 5 mass % based on the total mass of the liquid detergent composition for textile products.

4. The liquid detergent composition for textile products according to claim 1 or 2, further comprising component (D): cellulase.

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