JP7758541B2 - Textile product treatment composition - Google Patents

Description

The present invention relates to a textile product treatment composition.

Cotton has excellent water absorption properties and is soft to the touch, making it suitable for use in textile products such as clothing. Cotton clothing is preferred, particularly during the humid rainy season and hot summer months, because it absorbs moisture such as sweat and creates a comfortable environment between clothing and the skin.
However, when cotton absorbs a large amount of moisture such as sweat, the wet clothing becomes sticky against the skin, making it less comfortable to wear. Attempts have been made to solve this problem by improving both i) the fiber itself and ii) treatment agents for textile products.

Patent Documents 1 to 4 propose a technique for controlling the comfort of clothing when it becomes wet with sweat or the like, using special fibers.
Furthermore, Patent Documents 5 to 11 disclose methods for treating cotton fabrics by applying a composition to cotton fabrics that come into direct contact with the skin, and Patent Documents 7 to 11 in particular describe textile product treatment compositions that contain a cationic surfactant and an aliphatic alcohol in a specific ratio and that suppress rewetting of textile products.
Furthermore, Patent Document 12 describes that a composition containing (A) a mixture of a predetermined quaternary ammonium salt, (B) a predetermined ester compound, and (C) a predetermined aliphatic alcohol suppresses deterioration of the breathability of textile products.
Furthermore, Patent Document 13 describes that a composition containing (A) a modified hydroxyalkyl cellulose and (B) a cationic surfactant can impart the effects of improving cleansing properties and texture.

WO 2007/004589 Japanese Patent Application Laid-Open No. 2006-97147 Japanese Patent Application Laid-Open No. 2003-183978 JP 2012-12730 A Japanese Patent Application Laid-Open No. 2005-89882 JP 2011-122252 A Japanese Patent Application Laid-Open No. 2014-129627 JP 2014-141771 A JP 2016-011470 A JP 2016-011472 A Japanese Patent Application Laid-Open No. 2018-193653 Japanese Patent Application Laid-Open No. 2021-110075 Japanese Patent Application Laid-Open No. 2020-204025

The technologies described in Patent Documents 1 to 4 require special fiber processing, making them difficult to implement at home. However, in recent years, there has been an increase in clothing made primarily from chemical fibers that have undergone such special fiber processing. However, these textile products achieve this by making it easier for absorbed moisture to spread, and time is required for the absorbed moisture to dry, so they cannot be said to substantially solve the problem of stickiness. Furthermore, the technologies described in Patent Documents 5 and 6 are basically aimed at accelerating the drying speed of textile products, and do not directly solve the problem of worsening stickiness when wet with sweat or the like. The inventors have previously proposed technologies described in Patent Documents 7 to 13 to solve the problem of skin stress caused by sweat or the like absorbed into textile products wetting back onto bare skin, but these technologies did not address textile products containing chemical fibers (hereinafter sometimes referred to as synthetic fiber products).

The problem that the present invention aims to solve is to provide a textile product treatment composition that can suppress the aforementioned stickiness by simply treating textile products containing chemical fibers, particularly textile products such as underwear that come into direct contact with the skin and easily become wet with sweat, etc.

The present inventors have conducted extensive research into textile product treatment compositions containing a quaternary ammonium salt and a modified polysaccharide derivative, preferably a quaternary ammonium salt and a modified hydroxyalkyl cellulose, and more preferably a quaternary ammonium salt and a modified hydroxyethyl cellulose. As a result, they have discovered that the use of a specific modified polysaccharide derivative can reduce the dynamic friction coefficient (hereinafter referred to as wet friction) of wet synthetic textile products, resulting in a textile product treatment composition with excellent stickiness suppression effects.

That is, the present invention relates to a textile product treatment composition containing 5% by mass or more and 20% by mass or less of the following component (A), 0.005% by mass or more and 15% by mass or less of the following component (B), the following component (C), and water:
<Component (A)>
A quaternary ammonium salt compound represented by the following general formula (1):
[R ^1a C(=O)-O-(C _p H _2p O) _r -C _q H _2q ] _m N ⁺ (R ^2a ) _4-m X ^- (1)
[In the formula, R ^1a is a hydrocarbon group having from 11 to 23 carbon atoms, R ^2a is a group selected from hydrocarbon groups having from 1 to 3 carbon atoms and an HO—(C _p H _2p O) _r —C _q H _2q group, X ⁻ is an organic or inorganic anion, m is a number of from 1 to 3, p and q are each independently a number of 2 or 3, and r is a number of from 0 to 5. When a plurality of R ^1a , R ^2a , p, q, and r are present in the same molecule, they may be the same or different.]
<(B) component>
A modified polysaccharide derivative in which a cationic group and a hydrophobic group represented by formula (2) [hereinafter referred to as hydrophobic group (2)] are bonded to a group formed by removing a hydrogen atom from a hydroxyl group of a polysaccharide or a derivative thereof, wherein the degree of substitution (β) of the cationic group is 0.002 or more and 0.045 or less, and the ratio (α/β) of the degree of substitution (α) of the hydrophobic group (2) to the degree of substitution (β) of the cationic group is 0.2 or more and 4.5 or less.

[In the formula, Z represents a single bond or a hydrocarbon group having an oxygen atom, R ^1b represents a hydrocarbon group having two or more carbon atoms, and * represents the bonding position to the group obtained by removing a hydrogen atom from a hydroxyl group of the polysaccharide or its derivative.]
<(C) component>
One or more ester compounds selected from ester compounds of an alcohol having 1 to 6 carbon atoms and a fatty acid having 12 to 22 carbon atoms.

The present invention provides a textile product treatment composition that can reduce stickiness of textile products that have become wet due to sweating or other factors. While textile products that contain or are made from chemical fibers tend to be particularly sticky, the textile product treatment composition of the present invention can effectively reduce stickiness even on textile products that contain chemical fibers.

The present invention provides a textile product treatment composition containing 5% by mass or more and 20% by mass or less of the component (A), 0.005% by mass or more and 15% by mass or less of the component (B), the component (C), and water.
The textile product treatment composition of the present invention may be a textile product treatment composition for textile products containing chemical fibers.
The textile treatment composition of the present invention may be a textile finish composition or a textile softener composition that can suppress stickiness of textile products that have become wet due to perspiration or the like.

The textile product treatment composition of the present invention uses a combination of components (A), (B), and (C). Therefore, although the details are unclear, it is believed that textile products treated with this textile product treatment composition can be prevented from becoming sticky due to improved adsorption of component (A) onto synthetic fibers.

<Component (A)>
The component (A) of the present invention is a quaternary ammonium salt compound represented by the following general formula (1).
[R ^1a C(=O)-O-(C _p H _2p O) _r -C _q H _2q ] _m N ⁺ (R ^2a ) _4-m X ^- (1)
[In the formula, R ^1a is a hydrocarbon group having from 11 to 23 carbon atoms, R ^2a is a group selected from hydrocarbon groups having from 1 to 3 carbon atoms and an HO—(C _p H _2p O) _r —C _q H _2q group, X ⁻ is an organic or inorganic anion, m is a number of from 1 to 3, p and q are each independently a number of 2 or 3, and r is a number of from 0 to 5. When a plurality of R ^1a , R ^2a , p, q, and r are present in the same molecule, they may be the same or different.]

Component (A) is preferably a compound in which m is 2, and it is more preferable that compounds in which m is 2 constitute 25% by mass or more of component (A), preferably 35% by mass or more, and more preferably 45% by mass or more.

R ^1a in component (A) is preferably a hydrocarbon group derived from a fatty acid, more preferably a linear saturated or linear unsaturated hydrocarbon group. Component (A) can be obtained, for example, by synthesizing a tertiary amine compound having a fatty acid ester group by esterification reaction of a tertiary amine compound having two or three hydroxyalkyl groups each having 2 or 3 carbon atoms, optionally bonded to an alkyleneoxy group where p is 2 or 3 (provided that when there are two hydroxyalkyl groups, the other group is an alkyl group having 1 to 3 carbon atoms), with a fatty acid or by transesterification reaction of a fatty acid lower alcohol ester, followed by quaternization reaction of the resulting tertiary amine compound with an alkylating agent having 1 to 3 carbon atoms. When using such a quaternary ammonium salt compound, it is preferable to synthesize it as a mixture with a compound having m=1 or 2 when the compound has two hydroxyalkyl groups, or as a mixture with a compound having m=1, 2, or 3 when the compound has three hydroxyalkyl groups, and use the mixture. In this case, the compound may contain some unreacted tertiary amine compound, fatty acid, and other impurities. In the present invention, it is preferable to use diethanol monomethylamine or triethanolamine as the tertiary amine compound before esterification, and it is even more preferable to use triethanolamine. Quaternary ammonium salt compounds obtained by quaternization using methyl chloride, dimethyl sulfate, or diethyl sulfate as an alkylating agent are preferred. In this case, R ^1a in general formula (1) is a linear saturated or unsaturated hydrocarbon group having 11 to 23 carbon atoms derived from a fatty acid, one of R ^2a is a methyl or ethyl group and the rest are hydroxyethyl groups, q is 2, r is 0, and m is a mixture of compounds in which m is 1 to 3. That is, it is a quaternized product of a triethanolamine fatty acid ester, and in the present invention, a compound in which m = 1 is a monoester (sometimes referred to as compound (a1) or component (a1)), a compound in which m = 2 is a diester (sometimes referred to as compound (a2) or component (a2)), and a compound in which m = 3 is a triester (sometimes referred to as compound (a3) or component (a3)).

More preferably, component (A) of the present invention is a mixture of quaternary ammonium salts containing compound (a1) in an amount of 10% by mass or more and 45% by mass or less of the total amount of quaternary ammonium salts represented by general formula (1), compound (a2) in an amount of 25% by mass or more and 70% by mass or less of the total amount of quaternary ammonium salts represented by general formula (1), and compound (a3) in an amount of 5% by mass or more and 40% by mass or less of the total amount of quaternary ammonium salts represented by general formula (1).

When the proportions of the (a1), (a2), and (a3) components in the total amount of the quaternary ammonium salt represented by general formula (1) are within the above ranges, the stickiness suppression effect imparted to textile products is improved. From this perspective, it is preferable that the proportions of the (a1), (a2), and (a3) components in the total amount of the quaternary ammonium salt represented by general formula (1) are as follows:

The proportion of the (a1) component in the total amount of the quaternary ammonium salt represented by general formula (1) is 10% by mass or more, preferably 15% by mass or more, more preferably 20% by mass or more, even more preferably 25% by mass or more, and is 45% by mass or less, preferably 40% by mass or less, more preferably 35% by mass or less, even more preferably 32% by mass or less.
The proportion of the (a2) component in the total amount of the quaternary ammonium salt represented by general formula (1) is 25% by mass or more, preferably 30% by mass or more, more preferably 35% by mass or more, more preferably 40% by mass or more, even more preferably 45% by mass or more, and still more preferably 50% by mass or more, and is 70% by mass or less, preferably 65% by mass or less, and more preferably 60% by mass or less.
The proportion of the (a3) component in the total amount of the quaternary ammonium salt represented by general formula (1) is 5% by mass or more, preferably 8% by mass or more, more preferably 10% by mass or more, even more preferably 12% by mass or more, and is 40% by mass or less, preferably 30% by mass or less, more preferably 25% by mass or less, even more preferably 20% by mass or less.
Note that components (a2) and (a3) affect the storage stability of the textile product treatment composition containing component (B), so it is preferable that component (A) contains component (a1) in the above-mentioned range.

In the present invention, while the above-mentioned ratios of components (a1), (a2), and (a3) are satisfied, it is preferable that the content of component (a2) in the total amount of the quaternary ammonium salt represented by general formula (1) is greater than that of component (a3), and furthermore, the difference between the content (mass%) of component (a2) and the content (mass%) of component (a3) is preferably 15% by mass or more, more preferably 20% by mass or more, even more preferably 25% by mass or more, still more preferably 30% by mass or more, and even more preferably 35% by mass or more.

In general formula (1), specific examples of the fatty acid constituting R ^1a include one or more selected from stearic acid, palmitic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, palm oil fatty acid, sunflower oil fatty acid, soybean oil fatty acid, rapeseed oil fatty acid, safflower oil fatty acid, cottonseed oil fatty acid, corn oil fatty acid, olive oil fatty acid, hydrogenated palm oil fatty acid, beef tallow fatty acid, and hydrogenated beef tallow fatty acid.

In general formula (1), one of ^R2a is an alkyl group derived from an alkylating agent used in the quaternization. Since the above-mentioned alkylating agent is used, it is preferably an alkyl group having 1 to 3 carbon atoms, and more preferably a methyl group or an ethyl group.
In general formula (1), X ⁻ represents an organic or inorganic anion, and is preferably an anion selected from a halogen ion such as a chlorine ion, and an alkyl sulfate ion having from 1 to 3 carbon atoms. In the present invention, an alkyl sulfate ion having from 1 to 3 carbon atoms is more preferred, and a methyl sulfate ion or an ethyl sulfate ion is even more preferred.

As described above, the component (A) used in the present invention is preferably a compound obtained by subjecting an esterification reaction product obtained by a method of subjecting a fatty acid and triethanolamine to a dehydration esterification reaction (hereinafter referred to as the "dehydration esterification method") or a method of subjecting a fatty acid lower alkyl ester (wherein the lower alkyl is a methyl group, an ethyl group, or a propyl group) and triethanolamine to a transesterification reaction (hereinafter referred to as the "transesterification method"), using an alkylating agent.
To obtain a mixture of components (a1) to (a3) that satisfies the ratio of components (a1) to (a3) of component (A) of the present invention, for example, it can be obtained by reacting 1 mole of triethanolamine with 1.3 moles or more, preferably 1.5 moles or more, and 2.0 moles or less, preferably 1.9 moles or less of a fatty acid or a fatty acid lower alkyl ester, and then subjecting the mixture to a quaternization reaction.

The fatty acid or fatty acid lower alkyl ester preferably has a fatty acid composition obtained by saponifying an oil or fat selected from beef tallow, palm oil, sunflower oil, soybean oil, rapeseed oil, safflower oil, cottonseed oil, corn oil, and olive oil, and more preferably has a fatty acid composition obtained from beef tallow, palm oil, or sunflower oil.
Furthermore, since these fatty acids or fatty acid lower alkyl esters contain a large amount of alkenyl groups having two or more carbon-carbon unsaturated bonds, the proportion of fatty acids having two or more carbon-carbon unsaturated bonds can be controlled, for example, by crystallization as described in JP-A-4-306296, vacuum distillation of methyl esters as described in JP-A-6-41578, or selective hydrogenation as described in JP-A-8-99036. For example, hardened beef tallow is obtained by saturating fatty acids derived from beef tallow by hydrogenation, and is sometimes referred to as semi-hardened if only a portion of the fatty acid is hardened. Furthermore, fatty acids with an adjusted degree of hardening may be arbitrarily mixed with unhardened fatty acids.
When the selective hydrogenation reaction is carried out, a mixture of geometric isomers of unsaturated bonds is formed, and in the present invention, the cis/trans ratio is preferably 25/75 to 100/0, more preferably 50/50 to 95/5 (molar ratio).

In the dehydration esterification method, it is preferable to carry out the esterification reaction at a temperature of 140°C or higher and 230°C or lower while removing condensed water. Conventional esterification catalysts may be used to promote the reaction, and examples of such catalysts include inorganic acids such as sulfuric acid and phosphoric acid, inorganic oxides such as tin oxide and zinc oxide, and alcoholates such as titanium tetrapropoxide.

The progress of the reaction can be confirmed by measuring the acid value (AV) and saponification value (SV) by the method described in JIS K0070-1992, and the esterification reaction is terminated when the AV is preferably 10 mgKOH/g or less, more preferably 6 mgKOH/g or less.
The SV of the resulting mixture of ester compounds is preferably 110 mgKOH/g or more, more preferably 130 mgKOH/g or more, and preferably 210 mgKOH/g or less, more preferably 190 mgKOH/g or less.

In the transesterification method, the reaction temperature is preferably 50° C. or higher, more preferably 100° C. or higher, and preferably 150° C. or lower, and the reaction is preferably carried out while removing the lower alcohol produced. To promote the reaction, an inorganic alkali such as sodium hydroxide or potassium hydroxide, or an alkoxy catalyst such as methylate or ethylate can also be used.
The progress of the reaction is preferably monitored by directly quantifying the amount of fatty acid lower alkyl ester using gas chromatography or the like, and the reaction is preferably terminated when the amount of unreacted fatty acid lower alkyl ester becomes 10 area % or less, particularly 6 area % or less, based on the amount of fatty acid lower alkyl ester charged on a gas chromatography chart.
The SV of the resulting mixture of ester compounds is preferably 110 mgKOH/g or more, more preferably 130 mgKOH/g or more, and preferably 210 mgKOH/g or less, more preferably 190 mgKOH/g or less.

To obtain a quaternary ammonium salt, the ester compound obtained by the above-mentioned method is quaternized. Suitable alkylating agents for quaternization include methyl chloride, dimethyl sulfate, and diethyl sulfate. When methyl chloride is used as the alkylating agent, no particular solvent is required. However, when a solvent is used, a solution containing 10% by mass or more and 50% by mass or less of the ester compound, such as ethanol or isopropanol, is charged into a pressure reactor such as a titanium autoclave, and methyl chloride is injected under pressure at a reaction temperature of 30°C to 120°C under a sealed condition to cause the reaction. Since some of the methyl chloride may decompose during this process and generate hydrochloric acid, it is preferable to add a small amount of an alkaline agent to efficiently proceed with the reaction.
The molar ratio of methyl chloride to the ester compound is preferably 1 to 1.5 equivalents of methyl chloride per equivalent of the amino group of the ester compound.

When dimethyl sulfate or diethyl sulfate is used as the alkylating agent, the alkylation can be carried out by heating and mixing a solution obtained by mixing a solvent such as ethanol or isopropanol in an amount of about 10% by mass to 50% by mass based on the ester compound at a temperature of 40°C to 100°C, and then dropwise adding dimethyl sulfate and/or diethyl sulfate.
The molar ratio of dimethyl sulfate and/or diethyl sulfate to the ester compound is preferably 0.9 equivalents or more, more preferably 0.95 equivalents or more, and preferably 1.1 equivalents or less, more preferably 0.99 equivalents or less, of dimethyl sulfate and/or diethyl sulfate relative to 1 equivalent of the amino group of the ester compound.

The textile product treatment composition of the present invention may contain by-products generated during the production of component (A). Examples of by-products include unreacted amines that have not been quaternized, specifically amines of fatty acid triesters and amines of fatty acid diesters. The total amount of the amines of fatty acid triesters and amines of fatty acid diesters varies depending on the production method, but is often 30 parts by mass or less per 100 parts by mass of component (A).
On the other hand, since amines of fatty acid monoesters are easily quaternized, their content in the reaction product is usually 0.5 parts by mass or less per 100 parts by mass of component (A).
Furthermore, the total content of the triethanolamine that has not been converted into a fatty acid ester and the quaternized triethanolamine is often 0.5 parts by mass or more and 3 parts by mass or less per 100 parts by mass of component (A), and 90% by mass or more of this is the quaternized product.
In addition to the by-products, component (A) may also contain unreacted fatty acids.

The proportions of the (a1), (a2), and (a3) compounds and the amine compound, which are component (A), were determined using high-performance liquid chromatography (hereinafter also referred to as "HPLC") with a charged aerosol detection (hereinafter also referred to as "CAD") as the detector. Regarding the measurement method using CAD, "Technology and Applications of the Corona CAD Charged Aerosol Detector" (Fukushima et al., Chromatography, Vol. 32 No. 3 (2011)) can be referenced. The mass ratios are determined by assuming that the anion (X ⁻ ) in general formula (1) is a methyl sulfate ion.

<(B) component>
Component (B) is a modified polysaccharide derivative in which a cationic group and a hydrophobic group represented by formula (2) [hereinafter referred to as hydrophobic group (2)] are bonded to a group formed by removing a hydrogen atom from a hydroxyl group of a polysaccharide or a derivative thereof (hereinafter sometimes referred to as a base polysaccharide derivative), the degree of substitution (β) of the cationic group being 0.002 or more and 0.045 or less, and the ratio (α/β) of the degree of substitution (α) of the hydrophobic group (2) to the degree of substitution (β) of the cationic group in the modified polysaccharide derivative being 0.2 or more and 4.5 or less.

[In the formula, Z represents a single bond or a hydrocarbon group having an oxygen atom, R ^1b represents a hydrocarbon group having two or more carbon atoms, and * represents the bonding position to the group obtained by removing a hydrogen atom from a hydroxyl group of the polysaccharide or its derivative.]

The base polysaccharide derivative is preferably cellulose modified with a hydroxyalkyl having from 1 to 4 carbon atoms, more preferably hydroxyethyl cellulose, the cationic group is preferably a quaternary ammonium cationic group, and the hydrophobic group (2) is preferably a hydrocarbon group having from 2 to 18 carbon atoms. Component (B) may be a modified polysaccharide derivative that combines these preferred base polysaccharide derivatives, cationic groups, and hydrophobic groups (2).

Examples of polysaccharides include one or more polysaccharides selected from cellulose, guar gum, and starch. Component (B) is a polysaccharide derivative, and a polysaccharide derivative can be used as a precursor compound to obtain it. That is, component (B) may be a derivative of a polysaccharide derivative. Examples of base polysaccharide derivatives, which are precursor compounds to component (B), include base polysaccharide derivatives in which some or all of the hydrogen atoms of the hydroxyl groups of the polysaccharide are substituted with hydroxyalkyl groups having from 1 to 4 carbon atoms (hereinafter also referred to as hydroxyalkyl-substituted derivatives). Hydroxyalkyl groups having from 1 to 4 carbon atoms are preferably hydroxyalkyl groups having from 2 to 4 carbon atoms. Examples of hydroxyalkyl groups having from 2 to 4 carbon atoms include one or more groups selected from hydroxyethyl groups, hydroxypropyl groups, and hydroxybutyl groups, with one or more groups selected from hydroxyethyl groups and hydroxypropyl groups being preferred. The polysaccharide or derivative thereof is more preferably cellulose or hydroxyalkyl-modified cellulose, and the modification rate (also referred to as substitution rate) of the hydroxyalkyl group of the base polysaccharide derivative is preferably 0.1 or more, more preferably 0.5 or more, even more preferably 1 or more, still more preferably 1.5 or more, and preferably 10 or less, more preferably 8 or less, even more preferably 5 or less, and still more preferably 3 or less. Component (B) may be a compound in which a hydrophobic group (2) and a cationic group have been introduced into a polysaccharide or polysaccharide derivative selected from one or more polysaccharides selected from cellulose, guar gum, or starch, or hydroxyalkyl-substituted products thereof.

Component (B) can be a polysaccharide derivative in which a hydrophobic group (2) and a cationic group are bound to a polysaccharide or its derivative, which is a precursor compound of component (B), either directly or via a linking group (hereinafter referred to as component (1) linking group).

The linking group (1) can be one or more groups selected from an alkyleneoxy group having from 1 to 3 carbon atoms, which may have a hydroxy group; a polyoxyalkylene group in which the alkylene group has from 1 to 3 carbon atoms; a carbonyl group; a carbonyloxy group; and an oxycarbonyl group. One linking group (1) may be one of the above-mentioned linking groups, or a combination of multiple types. Furthermore, the linking group (1) contained in the polysaccharide derivative may be one type or multiple types.

In the present invention, when the hydrocarbon group is linked to the oxygen atom of the linking group (1), the number of carbon atoms in the hydrocarbon group in component (B) refers to the number of carbon atoms in the hydrocarbon group bonded to the oxygen atom. When the hydrocarbon group is linked via a carbonyl group, an acyl group is bonded, and in this case, the number of carbon atoms in the hydrocarbon group in component (B) refers to the number of carbon atoms in the acyl group. Similarly, when linked via a carbonyloxy group or oxycarbonyl group, the number of carbon atoms in the hydrocarbon group refers to the number of carbon atoms in the acyl group. When a 1,2-epoxyalkane is used to introduce a hydrocarbon group into a polysaccharide or polysaccharide derivative, the number of carbon atoms refers to the number of carbon atoms in the aliphatic hydrocarbon group bonded to the ether group generated from the epoxy group. The epoxy group portion becomes the linking group (1). For example, when a hydrocarbon group is introduced into a polysaccharide or polysaccharide derivative using 1,2-epoxytetradecane, the number of carbon atoms in the hydrocarbon group is 12. That is, an oxyethylene group, which is the linking group (1), is bonded to a hydroxyl group of the polysaccharide or polysaccharide derivative, and an alkyl group having 12 carbon atoms (dodecyl group) is bonded via this linking group. The same applies when an alkyl glycidyl ether is used.

The polysaccharide derivative having both a hydrophobic group (2) and a cationic group (component (B)) further includes a polysaccharide derivative in which a hydrophobic group (2) and a cationic group are bound to the oxygen atoms formed by removing hydrogen atoms from some or all of the hydroxyl groups of the hydroxyalkyl substituent, either directly or via a linking group (1), preferably via a linking group (1).

Hydrophobic group (2) is preferred because it imparts hydrophobic properties to component (B) and is capable of interacting with the vesicles formed by component (A). The number of carbon atoms in hydrophobic group (2) is 2 or more, preferably 4 or more, more preferably 6 or more, even more preferably 8 or more, still more preferably 10 or more, and preferably 18 or less, more preferably 16 or less, even more preferably 14 or less.

The cationic group can be bonded via a linking group to a group obtained by removing a hydrogen atom from a hydroxyl group of a polysaccharide or derivative thereof, which is a precursor compound of component (B). Compounds containing a bonding pattern in which a cation atom of a cationic group, such as a nitrogen cation, is directly covalently bonded to a group obtained by removing a hydrogen atom from a hydroxyl group of a polysaccharide or derivative thereof, i.e., an oxygen atom, are not considered to be component (B) having a cationic group.
A cationic group may be bonded to a group obtained by removing a hydrogen atom from a hydroxyl group of a polysaccharide or derivative thereof, which is a precursor compound of component (B), preferably the hydroxyalkyl-substituted product, more preferably the hydroxyethyl-substituted product, via a linking group, an alkylene group having 1 to 4 carbon atoms and which may contain a hydroxyl group [hereinafter referred to as linking group (2)].
The cationic group is preferably a group containing a nitrogen cation, more preferably a quaternary ammonium group.

The linking group (2) is an alkylene group having 1 to 4 carbon atoms and optionally containing a hydroxyl group. Examples of alkylene groups having 1 to 4 carbon atoms include one or more alkylene groups selected from linear alkylene groups having 1 to 4 carbon atoms and optionally containing a hydroxyl group, and branched alkylene groups having 3 to 4 carbon atoms and optionally containing a hydroxyl group.

When the cationic group is a quaternary ammonium group, the three hydrocarbon groups other than the linking group (2) bonded to the quaternary ammonium group are each independently a linear hydrocarbon group having from 1 to 4 carbon atoms or a branched hydrocarbon group having from 3 to 4 carbon atoms. Examples of linear hydrocarbon groups having from 1 to 4 carbon atoms include a methyl group, an ethyl group, an n-propyl group, and an n-butyl group. Examples of branched hydrocarbon groups having from 3 to 4 carbon atoms include an isopropyl group, a sec-butyl group, a tert-butyl group, and an isobutyl group. As the linear hydrocarbon group having from 1 to 4 carbon atoms, a methyl group or an ethyl group is preferred.
The counter ion of the quaternary ammonium group may be one or more counter ions selected from alkyl sulfate ions having 1 to 3 carbon atoms, sulfate ions, phosphate ions, fatty acid ions having 1 to 3 carbon atoms, and halide ions. Among these, from the viewpoints of ease of production and availability of raw materials, preferred are one or more counter ions selected from alkyl sulfate ions having 1 to 3 carbon atoms, sulfate ions, and halide ions, more preferred are halide ions. Examples of halide ions include fluoride ions, chloride ions, bromide ions, and iodide ions. From the viewpoints of water solubility and chemical stability of the polysaccharide derivative of component (B), preferred are one or more counter ions selected from chloride ions and bromide ions, more preferred are chloride ions. The counter ion may be one type alone or two or more types.

In the present invention, the degree of substitution of the cationic group and hydrophobic group (2) in component (B) refers to the number of substitutions of the group per constituent monosaccharide unit, i.e., the molar average degree of substitution (MS). For example, when the polysaccharide is cellulose, the "degree of substitution of a group" refers to the average number of moles of the group introduced per mole of anhydroglucose unit. The same applies to the degree of substitution of the cationic group in component (B). The degree of substitution of the hydrophobic group (2) and the degree of substitution of the cationic group in the polysaccharide derivative in component (B) can each be determined by the method described in the Examples.

In the present invention, the degree of substitution (β) of the cationic group in component (B) is 0.002 or more, preferably 0.003 or more, more preferably 0.005 or more, even more preferably 0.01 or more, and is 0.045 or less, preferably 0.040 or less, and the ratio (α/β) of the degree of substitution (α) of the hydrophobic group (2) in component (B) to the degree of substitution (β) of the cationic group is 0.2 or more, preferably 0.3 or more, more preferably 0.4 or more, even more preferably 0.5 or more, even more preferably 0.7 or more, and is 4.5 or less, preferably 4.4 or less, more preferably 4.0 or less, even more preferably 3.0 or less, even more preferably 2.0 or less. The degree of substitution (α) of the hydrophobic group is preferably 0.005 or more, more preferably 0.008 or more, even more preferably 0.01 or more, even more preferably 0.013 or more, even more preferably 0.015 or more, and is preferably 0.04 or less, more preferably 0.35 or less, even more preferably 0.03 or less, even more preferably 0.028 or less, even more preferably 0.027 or less.

From the viewpoint of improving cleaning performance, the weight-average molecular weight of the polysaccharide or derivative thereof, which is the precursor compound of component (B) of the present invention, is preferably 1,000 or more, more preferably 10,000 or more, even more preferably 30,000 or more, even more preferably 50,000 or more, even more preferably 70,000 or more, and even more preferably 100,000 or more. From the viewpoint of ease of handling, it is preferably 3,000,000 or less, more preferably 2,500,000 or less, even more preferably 1,000,000 or less, and even more preferably 500,000 or less. The weight-average molecular weight of this polysaccharide derivative precursor compound can be calculated using polyethylene glycol equivalents by GPC (gel permeation chromatography).

<(C) component>
The component (C) is one or more ester compounds selected from ester compounds of an alcohol having 1 to 6 carbon atoms and a fatty acid having 12 to 22 carbon atoms, from the viewpoint of obtaining the effect of reducing the dynamic friction coefficient in wet conditions.
More specifically, examples of such ester compounds include monohydric alcohols having one or more carbon atoms and preferably three or less, or polyhydric alcohols having two or more carbon atoms, preferably three or more, more preferably four or more and six or less, and preferably three or more, more preferably four or more and six or less, and which are trihydric or more, more preferably four or more and six or less, and a fatty acid having 12 or more carbon atoms, preferably 14 or more, more preferably 16 or more and 22 or less, preferably 20 or less. The ester compound is preferably an ester compound of the polyhydric alcohol and the fatty acid.

Preferred monohydric alcohols for component (C) include methanol, ethanol, and propanol, and preferred polyhydric alcohols include one or more selected from ethylene glycol, propylene glycol, glycerin, trimethylolethane, trimethylolpropane, 1,3,5-pentatriol, erythritol, arabitol, pentaerythritol, sorbitan, sorbitol, xylitol, and mannitol. Of these, trihydric or higher polyhydric alcohols are more preferred, with one or more selected from glycerin, pentaerythritol, and sorbitan being even more preferred, and one or more selected from pentaerythritol and sorbitan being even more preferred.

The fatty acids constituting component (C) are preferably one or more selected from saturated fatty acids such as lauric acid, myristic acid, stearic acid, and palmitic acid; unsaturated fatty acids such as oleic acid, elaidic acid, linoleic acid, and linolenic acid; vegetable oil-derived fatty acids such as palm oil fatty acid and hydrogenated palm oil fatty acid; and animal oil-derived fatty acids such as beef tallow fatty acid and hydrogenated beef tallow fatty acid; more preferably one or more selected from saturated fatty acids, vegetable oil-derived fatty acids, and animal oil-derived fatty acids; and even more preferably one or more selected from stearic acid, hydrogenated palm oil fatty acid, and hydrogenated beef tallow fatty acid.

Component (C) is preferably one or more selected from fatty acid methyl esters, ethylene glycol fatty acid esters, glycerin fatty acid esters, pentaerythritol fatty acid esters, and sorbitan fatty acid esters, more preferably one or more selected from glycerin fatty acid esters, pentaerythritol fatty acid esters, and sorbitan fatty acid esters, and even more preferably one or more selected from ester compounds of pentaerythritol and a fatty acid having from 16 to 22 carbon atoms (hereinafter also referred to as "pentaerythritol fatty acid esters (c1)"), and ester compounds of sorbitan and a fatty acid having from 16 to 22 carbon atoms (hereinafter also referred to as "sorbitan fatty acid esters (c2)").

[Pentaerythritol fatty acid ester (c1)]
The pentaerythritol fatty acid ester (c1) (hereinafter also referred to as "component (c1)") in the present invention is a mixture of two or more ester compounds selected from fatty acid monoesters, fatty acid diesters, fatty acid triesters, and fatty acid tetraesters obtained from pentaerythritol and a fatty acid having from 16 to 22 carbon atoms.

The component (c1) in the present invention is a component consisting of a plurality of ester compounds of pentaerythritol and a fatty acid having from 16 to 22 carbon atoms, and more specifically, is a mixture of four compounds with different degrees of esterification among the ester compounds. Note that the mixture referred to in the present invention also refers to a case where the compounds are synthesized separately and then mixed in the composition of the present invention.
Of the ester compounds constituting component (c1), fatty acid monoesters are compounds in which one of the four hydroxyl groups of pentaerythritol is esterified with a fatty acid, fatty acid diesters are compounds in which two of the four hydroxyl groups of pentaerythritol are esterified with a fatty acid, fatty acid triesters are compounds in which three of the four hydroxyl groups of pentaerythritol are esterified with a fatty acid, and fatty acid tetraesters are compounds in which all of the four hydroxyl groups of pentaerythritol are esterified with a fatty acid.

The fatty acid used as the raw material for the ester compound of component (c1) has 16 to 22 carbon atoms, preferably 16 to 18 carbon atoms. Specific examples of fatty acids used as the raw material for the ester compound of component (c1) include one or more selected from saturated fatty acids such as stearic acid and palmitic acid; unsaturated fatty acids such as oleic acid, elaidic acid, linoleic acid, and linolenic acid; vegetable oil-derived fatty acids such as palm oil fatty acid and hydrogenated palm oil fatty acid; and animal oil-derived fatty acids such as beef tallow fatty acid and hydrogenated beef tallow fatty acid. Among these, one or more selected from saturated fatty acids, vegetable oil-derived fatty acids, and animal oil-derived fatty acids are preferred, and one or more selected from stearic acid, hydrogenated palm oil fatty acid, and hydrogenated beef tallow fatty acid are more preferred.

The proportion of fatty acid monoester in the total amount of component (c1) is limited from the viewpoint of the wet friction reduction suppression effect, but from the viewpoint of improving the stability of the textile product composition, it is preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 12% by mass or more, even more preferably 15% by mass or more, even more preferably 18% by mass or more, and even more preferably 20% by mass or more, and from the viewpoint of improving the wet friction reduction suppression effect, it is preferably 45% by mass or less, more preferably 40% by mass or less, even more preferably 35% by mass or less, and even more preferably 30% by mass or less.

In the present invention, the content ratio of ester compounds with different degrees of esterification can be measured using gel permeation chromatography.

The component (c1) may contain a fatty acid tetraester among the pentaerythritol fatty acid esters. From the viewpoint of improving the stability of the textile product treatment composition, the proportion of the fatty acid tetraester in the total amount of ester compounds is preferably 0.5% by mass or more, more preferably 1% by mass or more, and is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 13% by mass or less, and still more preferably 10% by mass or less.
The total amount of fatty acid monoesters, fatty acid diesters, and fatty acid triesters in component (c1) is preferably 80% by mass or more, and more preferably 85% by mass or more.

Examples of methods for obtaining a mixture of ester compounds that will serve as component (c1) include those described in JP-A-5-140037 and JP-A-5-140038. Specifically, the mixture can be produced by an esterification reaction between pentaerythritol and a fatty acid, or a transesterification reaction between pentaerythritol and a fatty acid lower alkyl ester (wherein the lower alkyl is a methyl group, an ethyl group, or a propyl group).
To obtain a mixture that satisfies the requirements for component (c1), it is preferable to react 1 mole of pentaerythritol with a fatty acid or a fatty acid lower alkyl ester in a ratio of preferably 0.8 moles or more, more preferably 1.0 moles or more, even more preferably 1.2 moles or more, and preferably 2.2 moles or less, more preferably 2.0 moles or less, even more preferably 1.8 moles or less.

[Sorbitan fatty acid ester (c2)]
The sorbitan fatty acid ester (c2) (hereinafter also referred to as "component (c2)") in the present invention is preferably a sorbitan fatty acid ester in which the fatty acid is one or more selected from saturated fatty acids such as palmitic acid and stearic acid, and unsaturated fatty acids such as oleic acid and elaidic acid, more preferably a sorbitan fatty acid ester in which the fatty acid is a saturated fatty acid, and more preferably a sorbitan stearate.

The component (c2) is at least one selected from sorbitan fatty acid monoesters, sorbitan fatty acid diesters, and sorbitan fatty acid triesters. From the viewpoint of the stability of the textile product treatment composition, sorbitan fatty acid monoesters are preferred, and sorbitan stearic acid monoesters are more preferred.
In addition, the component (c2) in the present invention may be a mixture of sorbitan fatty acid monoester, sorbitan fatty acid diester, and sorbitan fatty acid triester, and in some cases, the mixture may further contain a trace amount of sorbitan fatty acid tetraester. When using such a mixture, it is preferable that the content of sorbitan fatty acid monoester is the highest in the mixture. Sorbitan fatty acid esters can be purchased from Kao Corporation under the trade name Rheodol. They may also be produced by known methods.

From the viewpoint of improving the wet friction reducing effect, the acid value (AV) of the (c2) component is preferably 3 mgKOH/g or more, more preferably 5 mgKOH/g or more, and is preferably 12 mgKOH/g or less, more preferably 10 mgKOH/g or less.
Furthermore, from the viewpoint of improving the wet friction reducing effect, the saponification value (SV) of the (c2) component is preferably 130 mgKOH/g or more, more preferably 145 mgKOH/g or more, and is preferably 170 mgKOH/g or less, more preferably 160 mgKOH/g or less.
The acid value (AV) and saponification value (SV) can be measured by the method described in JIS K0070-1992.

<Contents and Content Ratios of Component (A), Component (B), and Component (C)>
The content of component (A) in the textile product treatment composition of the present invention is 5% by mass or more, preferably 6% by mass or more, more preferably 7% by mass or more, even more preferably 8% by mass or more, and still more preferably 9% by mass or more, and is 20% by mass or less, preferably 18% by mass or less, and more preferably 15% by mass or less.

The content of component (B) in the textile product treatment composition of the present invention is 0.005% by mass or more, preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.05% by mass or more, and even more preferably 0.1% by mass or more, and is 15% by mass or less, preferably 8% by mass or less, and more preferably 6% by mass or less.

Furthermore, the content of component (C) in the textile product treatment composition of the present invention is preferably 0.5% by mass or more, more preferably 1% by mass or more, even more preferably 2% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, even more preferably 6% by mass or less.

In the textile product treatment composition of the present invention, the mass ratio of component (A) to component (B) [(A)/(B)] is preferably 0.5 or more, more preferably 10 or more, from the viewpoint of further improving the stickiness suppression effect and improving the stability of the textile product treatment composition; and is preferably 800 or less, more preferably 160 or less, from the viewpoint of improving the stickiness suppression effect.

The remainder of the textile product treatment composition of the present invention may be water. This water may be deionized water, sterilized water containing a small amount of hypochlorite in deionized water, tap water, etc.

<pH of textile product treatment composition>
The pH of the textile treatment composition of the present invention at 30°C is preferably 2.5 or higher and preferably 4.5 or lower, more preferably 4.0 or lower. When the pH of the textile treatment composition is within the above range, the fragrance-emitting and fragrance-retaining properties of the treated textile product are improved, and the storage stability of the textile treatment composition is also improved. Note that the pH in this specification is a value measured at 30°C in accordance with JIS K3362:2008, item 8.3.
The method for adjusting the pH of the textile product treatment composition to fall within the above range includes adjusting the pH with an alkaline agent and an acidic compound.

<Viscosity of textile product treatment composition>
From the viewpoint of ease of use, the viscosity of the textile product treatment composition of the present invention at 30°C is preferably 5 mPa·s or more, more preferably 10 mPa·s or more, and is preferably 300 mPa·s or less, more preferably 200 mPa·s or less, and even more preferably 150 mPa·s or less.
The viscosity in this specification can be measured using a Brookfield viscometer with any one of rotors No. 1 to No. 3 at 60 rpm, based on the reading 1 minute after the start of measurement. The temperature of the textile product treatment composition is adjusted to 30±1°C.

The textile product treatment composition of the present invention preferably further contains the following components.
[(D) Other Surfactants]
The textile product treatment composition of the present invention preferably contains a surfactant other than components (A), (B) and (C) as component (D).
Examples of the component (D) include cationic surfactants and nonionic surfactants.
The cationic surfactant is preferably one or more selected from the following (I) to (III), more preferably one or more selected from (II).
(I): Di-long chain alkyl or alkenyl dimethyl ammonium salts in which the carbon number of the alkyl or alkenyl group is 10 to 22 (II): Mono-long chain alkyl or alkenyl trimethyl ammonium salts in which the carbon number of the alkyl or alkenyl group is 10 to 22 (III): Mono-long chain alkyl or alkenyl dimethyl phenyl ammonium salts in which the carbon number of the alkyl or alkenyl group is 10 to 22

The nonionic surfactant may be one or more selected from the following (IV) and (V).
(IV): A nonionic surfactant represented by the following general formula (D1): R ^1d —O—[(C ₂ H ₄ O) _s (C ₃ H ₆ O) _t ]—H (D1)
[In the formula, R ^1d is an alkyl or alkenyl group having 8 or more, preferably 10 or more, carbon atoms and 18 or less, preferably 16 or less. s and t are the average number of moles added, where s is 6 or more, preferably 10 or more, and 50 or less, preferably 40 or less, and t is 0 or more, preferably 1 or more, and 5 or less, preferably 3 or less. (C ₂ H ₄ O) and (C ₃ H ₆ O) are bonded in a random or block fashion.]
(V): A nonionic surfactant represented by the following general formula (D2):

[In the formula, R ^2d is an alkyl or alkenyl group having 8 or more, preferably 10 or more, carbon atoms and 18 or less, preferably 16 or less. A is -N< or -CON<, u and v are each independently a number of 0 or more and 40 or less, and u+v is a number of 5 or more and 60 or less, preferably 40 or less. ^{R 3d} and R ^4d are each independently a hydrogen atom or an alkyl group having 1 or more and 3 or less carbon atoms.]

The component (D) is preferably a nonionic surfactant, and more preferably a nonionic surfactant represented by the general formula (D1).
When the textile product treatment composition of the present invention contains component (D), the content of component (D) is preferably 1% by mass or more, more preferably 1.2% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less.

[(E) Water-soluble organic solvent]
The textile product treatment composition of the present invention preferably further contains a water-soluble organic solvent as component (E) from the viewpoints of improving the stability of the textile product treatment composition and adjusting the viscosity.
In the present invention, the water-soluble organic solvent may be any of those commonly used in textile treatment agents. The term "water-soluble" in component (E) means that 20 g or more of the solvent dissolves in 100 g of deionized water at 20° C.
The water-soluble organic solvent may be one or more selected from propylene glycol, ethylene glycol, glycerin, diethylene glycol, monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, triethylene glycol monophenyl ether, isopropanol, and ethanol. Among these, ethylene glycol and ethanol are preferred.
When the textile product treatment composition of the present invention contains component (E), the content of component (E) is preferably 1.0 mass% or more, more preferably 1.5 mass% or more, and preferably 10 mass% or less, more preferably 6 mass% or less, and even more preferably 4 mass% or less.

(F) Inorganic Salt
From the viewpoint of improving the storage stability of the textile product treatment composition of the present invention, it is preferred to further blend an inorganic salt as component (F).
The inorganic salt is preferably a water-soluble inorganic salt, and from the viewpoint of improving the storage stability of the textile product treatment composition, one or more water-soluble inorganic salts selected from sodium salts, calcium salts, and magnesium salts are preferred, and one or more selected from sodium chloride, calcium chloride, and magnesium chloride are more preferred. Note that "water-soluble" in component (F) means that 20 g or more of the salt dissolves in 100 g of deionized water at 20°C.
When component (F) is blended into the textile product treatment composition of the present invention, the blending amount of component (F) is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and is preferably 2.0% by mass or less, more preferably 1.0% by mass or less.

[(G) Acidic compound]
The textile product treatment composition of the present invention preferably further contains an acidic compound as component (G) from the viewpoint of adjusting the pH of the textile product treatment composition concentrate to 2.5 or more and 4.0 or less, with the aim of suppressing hydrolysis of the quaternary ammonium compound, which is component (A).
Examples of the acidic compound include inorganic acids and organic acids. Specific examples of inorganic acids include hydrochloric acid and sulfuric acid. Specific examples of organic acids include mono- or polycarboxylic acids having from 1 to 10 carbon atoms, and mono- or polysulfonic acids having from 1 to 20 carbon atoms. More specific examples include one or more selected from methyl sulfate, ethyl sulfate, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, methylglycine diacetic acid, ethylenediaminetetraacetic acid, citric acid, benzoic acid, and salicylic acid. Among these, one or more selected from methylglycine diacetic acid, ethylenediaminetetraacetic acid, and citric acid are preferred.
There is no particular limitation on the amount of the acidic compound to be added, and it can be used appropriately so that the pH falls within the above range.

[(H) fatty acid]
The textile product treatment composition of the present invention can be used as a softener composition, and in that case, from the viewpoint of improving the softening effect, it is preferable that it further contains a fatty acid as component (H). The fatty acid may be blended as an unreacted product during the synthesis of component (A), or may be contained as a decomposition product of component (A).
The fatty acid is preferably a saturated or unsaturated fatty acid having 12 or more and 22 or less carbon atoms, such as lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, erucic acid, or behenic acid, and among these, a fatty acid selected from palmitic acid, stearic acid, oleic acid, and linoleic acid is more preferred.

[(I) Fragrance]
The textile treatment composition of the present invention may further contain a fragrance as component (I). The fragrance is usually present in a dissolved or dispersed state in the liquid portion of the textile treatment composition.
Examples of the fragrance include natural fragrances or synthetic fragrances that are generally used in textile treatment compositions. For example, fragrances described in "Synthetic Fragrances: Chemistry and Product Knowledge" by Genichi Indo, published by The Chemical Daily in 1969, and "Perfume and Flavor Chemicals" by Stephen Arctander, published by Montclair, NJ in 1969, can be used.
The fragrances used in the present invention are organic compounds known to be used as fragrances, and the fragrances described in "Practical Knowledge of Fragrances and Fragrances" (by Nakajima Mototaka, published by Sangyo Tosho Co., Ltd. on June 21, 1995) can be used in combination as appropriate according to the fragrance tone and intended use.
Furthermore, as a fragrance, for the purpose of improving the persistence and lingering properties of a fragrance, a fragrance component having a hydroxy group as described in JP-A-2009-256818 can be used in combination as a silicate ester. Also, fragrance components and fragrance compositions described in patent documents for fabric softeners, starches, styling agents, or other finishing agents known as laundry finishing agents can be used.

Examples of fragrances that can be suitably used in the present invention are as follows:
(I ₁ ) ethers such as fatty acid ethers and aromatic ethers (excluding phenol ethers);
(I ₂ ) Oxides such as fatty acid oxides and terpene oxides;
(I ₃ ) acetal,
(I ₄ ) ketal,
(I ₅ ) phenol,
(I ₆ ) phenol ether,
(I ₇ ) Acids such as fatty acids, terpene carboxylic acids, hydrogenated aromatic carboxylic acids, and aromatic carboxylic acids;
(I ₈ ) Nitrogen-containing compounds such as acid amides, nitromusks, nitriles, amines, pyridines, quinolines, pyrroles, and indoles

Furthermore, the textile product treatment composition of the present invention may contain microcapsules (hereinafter referred to as component (I _m )) encapsulating a fragrance, which preferably contains 90 mass % or more of a fragrance compound having a log P value of 2.0 or more and 6.0 or less.

When the textile product treatment composition of the present invention contains component (I), the content of component (I) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.7% by mass or more, and preferably 3% by mass or less, more preferably 2% by mass or less.

(J) Aliphatic Alcohol
As the component (J), from the viewpoint of improving the effect of suppressing the deterioration of breathability, a linear aliphatic primary saturated alcohol (j1) having from 12 to 16 carbon atoms and a linear aliphatic primary saturated alcohol (j2) having 18 carbon atoms, in which the ratio of the two components [(j1)/(j2)] is from 1/5 to 1/2, is used. It is important that the component (J) in the present invention is a linear aliphatic primary alcohol, and the aliphatic alcohol is an important factor in effectively exerting the effect of suppressing the deterioration of breathability achieved by the combined use of the component (A) and the component (C).
The number of carbon atoms in the linear aliphatic primary saturated alcohol (j1) is 12 or more, preferably 14 or more, from the viewpoint of further improving the effect of suppressing the deterioration of breathability.
Specific examples of aliphatic alcohols that can be used include (j1) one or more selected from lauryl alcohol, myristyl alcohol, and cetyl alcohol, and (j2) stearyl alcohol. Of these, myristyl alcohol and cetyl alcohol are preferred for (j1).
(j1) and (j2) may be mixed in advance or may be mixed in the composition of the present invention.

[Antioxidants]
The textile product treatment composition of the present invention may further contain a well-known antioxidant such as BHT from the viewpoint of suppressing deterioration of the substrate. Note that an antioxidant may be already incorporated in the component (A) or fragrance component. By incorporating an antioxidant, odors resulting from decomposition of the base can be suppressed.

[Dyes, pigments, antibacterial and antifungal agents]
The textile product treatment composition of the present invention may further contain dyes and pigments that are known to be blended in textile product finishing agents such as fabric softeners and starches, from the viewpoint of aesthetics and to prevent coloration during long-term storage from becoming noticeable.
The textile treatment composition of the present invention may also contain an antibacterial and antifungal agent commercially available as "Proxel" within the range that does not impair the stability of the textile treatment composition.

In addition to the above other components, the textile product treatment composition of the present invention may contain a silicone emulsion to the extent that the effect of the present invention is not impaired.
The textile treatment composition of the present invention not only acts as a wet friction reducer, but also exhibits softening effects due to the properties of component (A), and further exhibits superior softening properties compared to conventional softener compositions that use component (A) as the main base.
Examples of textile products to be treated in the present invention include clothing, bedding, towels, etc. The textile products to be treated in the present invention are preferably textile products containing chemical fibers, and chemical fibers are a general term including, for example, regenerated fibers such as rayon and cupra, semi-synthetic fibers such as acetate, and synthetic fibers such as polyester and nylon.

<Method of manufacturing textile product treatment composition>
There are no particular limitations on the method for producing the textile product treatment composition of the present invention, and it can be produced, for example, by the following method.
First, to deionized water preferably at 40°C or higher and 80°C or lower, as needed, a surfactant other than components (A), (B), and (C) (particularly a nonionic surfactant other than component (C)), which is component (D), a water-soluble organic solvent, which is component (E), and an acidic compound, which is component (G), are added, and the aqueous solution is heated preferably to 50°C or higher and 70°C or lower.
Next, while stirring the obtained aqueous solution, the quaternary ammonium salt mixture as component (A), the ester compound as component (C), and, if necessary, the fragrance as component (I), the optional silicone and other components are added, and the mixture is stirred for 5 minutes to 1 hour while heating preferably to 50° C. to 70° C., and if necessary, the water-soluble inorganic salt as component (F) is further added and stirred. Note that, when adding component (A) to the aqueous solution, from the viewpoint of uniform mixing, it is preferable to melt component (A) in advance, preferably at 50° C. to 70° C.
The resulting aqueous solution is then cooled with stirring, preferably to a temperature of from 15° C. to 35° C. After cooling, component (B) is added, and deionized water is added as needed to adjust the concentration, followed by stirring preferably at from 15° C. to 35° C. for from 5 minutes to 1 hour, thereby obtaining the textile product treatment composition of the present invention.
The pH of the textile product treatment composition can be adjusted as needed using an aqueous solution of hydrochloric acid or an aqueous solution of sodium hydroxide.

<Fiber>
The fibers constituting the textile products to be treated with the textile product treatment composition of the present invention may be either chemical or natural fibers. Examples of chemical fibers include polyamide fibers (such as nylon), polyester fibers (such as polyester), polyacrylonitrile fibers (such as acrylic), polyvinyl alcohol fibers (such as vinylon), polyvinyl chloride fibers (such as polyvinyl chloride), polyvinylidene chloride fibers (such as vinylidene), polyolefin fibers (such as polyethylene and polypropylene), polyurethane fibers (such as polyurethane), and polyvinyl chloride/polyvinyl alcohol copolymer fibers (such as polycrelal). Examples of natural fibers include seed 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, cellulosic fibers (rayon, polynosic, cupra, acetate, etc.), etc. The fibers that are the subject of the present invention are preferably chemical fibers.

<Textile products>
In the present invention, the term "textile product" refers to fabrics such as woven fabrics, knitted fabrics, and nonwoven fabrics made from the above-mentioned chemical fibers and natural fibers, as well as products obtained using the same, such as undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, towels, knitwear, socks, underwear, and tights. From the viewpoint of more easily realizing the suppression of stickiness of textile products wetted by sweating, etc., the textile product preferably contains chemical fibers. From the viewpoint of more effectively suppressing stickiness of textile products wetted by sweating, etc., the content of chemical fibers in the textile product is preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 20% by mass or more, even more preferably 30% by mass or more, even more preferably 50% by mass or more, and even more preferably 100% by mass or less. The content of chemical fibers in the textile product may be 100% by mass.

Synthesis Example 1: Synthesis of component (A-1)
A palm oil-derived fatty acid having an acid value of 206.9 mgKOH/g was subjected to a dehydration esterification reaction with triethanolamine at a reaction molar ratio of 1.65/1 (fatty acid/triethanolamine), to obtain a condensate containing N,N-dialkanoyloxyethyl-N-hydroxyethylamine as a main component.
Next, the amine value of this condensate was measured, and the condensate was quaternized using 0.95 equivalents of dimethyl sulfate according to a standard method to obtain a quaternary ammonium salt mixture (A-1) containing N,N-dialkanoyloxyethyl-N-hydroxyethyl-N-methylammonium methyl sulfate as the main component and 10% by mass of ethanol. However, since alkanoyl is a fatty acid residue derived from palm oil as a raw material, the term "alkanoyl" here also includes residues derived from unsaturated fatty acids in addition to saturated fatty acids, such as alkenoyl. The preparation procedure and reaction conditions were carried out in accordance with Synthesis Example 2 of JP 2010-209493 A.
In the component (A-1), the proportion of the component (a1) was 30% by mass, the proportion of the component (a2) was 55% by mass, and the proportion of the component (a3) was 15% by mass. The component (A-1) had a quaternization rate of 92% by mass, and contained, in addition to the components (a1), (a2), (a3), and ethanol, diester and triester tertiary amine compounds, trace amounts of triethanolamine and its quaternized products, and trace amounts of fatty acids. The proportions of the components (a1), (a2), and (a3), as well as the amounts of other components, were measured using HPLC under the following conditions.
<HPLC conditions>
Column: Inertsil NH2 5 μm (4.6 × 250 mm) Room temperature (25 ° C)
Mobile phase: 0.05% by mass TFA hexane:MeOH:THF=85:10:5 (mass ratio)
Flow rate: 0.8 mL/min from the start of measurement until 10 minutes, 1.2 mL/min from 10 to 55 minutes from the start of measurement, 0.8 mL/min from 55 to 60 minutes from the start of measurement
Injection: 20μL
Detection: CAD

Synthesis Example 2: Synthesis of component (B)
(Synthesis Example 2-1) (B-1) to (B-15), (B'-1) to (B'-4)
90 g of hydroxyethyl cellulose (Ashland, Natrosol 250 JR, weight average molecular weight: 150,000, degree of substitution (MS) of hydroxyethyl groups: 2.5) was placed in a 1 L separatory flask and subjected to a nitrogen flow. 77.2 g of deionized water and 414.5 g of isopropyl alcohol (hereinafter referred to as IPA) were added and stirred for 5 minutes. 10.9 g of 48% aqueous sodium hydroxide solution was then added and stirred for an additional 15 minutes. Next, lauryl glycidyl ether (Yokkaichi Synthetic Co., Ltd., LA-EP) was added in the amount listed in Table 1, and an alkylation reaction was carried out at 80°C for 13 hours. Furthermore, glycidyl trimethylammonium chloride (Sakamoto Pharmaceutical Co., Ltd., SY-GTA80) was added in the amount listed in Table 1, and a cationization reaction was carried out at 50°C for 1.5 hours. Subsequently, 10.9 g of 90% aqueous acetic acid solution was added and the mixture was stirred for 30 minutes to carry out a neutralization reaction.
The resulting suspension was transferred equally into two 500 mL centrifuge tubes and centrifuged using a high-speed refrigerated centrifuge (Hitachi Koki Co., Ltd., CR21GIII). The supernatant was removed by decantation, and an equal volume of 85% IPA aqueous solution was added to the removed supernatant, followed by re-dispersion. The centrifugation and re-dispersion procedures were repeated, and after the third centrifugation, the precipitate was removed. The resulting precipitate was dried under reduced pressure at 80°C overnight using a vacuum dryer (Advantec, VR-420) and crushed using an Extreme Mill (Waring, MX-1200X™), yielding powdered cellulose derivative compositions [(B-1) to (B-15), (B'-1) to (B'-4)].
(Synthesis Example 2-2) (B-16)
70 g of hydroxyethyl cellulose (Ashland, Natrosol 250 JR, weight average molecular weight: 150,000, degree of substitution (MS) of hydroxyethyl groups: 2.5) was placed in a 1 L separatory flask and subjected to a nitrogen flow. 355.9 g of IPA was added and stirred for 5 minutes, after which 162.5 g of a previously prepared 4.8% aqueous sodium hydroxide solution was added and stirred for an additional 15 minutes. Next, 1.6 g of glycidyl trimethylammonium chloride (Sakamoto Pharmaceutical Co., Ltd., SY-GTA80) and 8.74 g of lauryl glycidyl ether (Yokkaichi Chemical Co., Ltd., LA-EP) were added simultaneously and reacted at 80°C for 5 hours. Subsequently, 13.7 g of 90% aqueous acetic acid solution was added and neutralized by stirring for 30 minutes.
The resulting suspension was transferred equally into two 500 mL centrifuge tubes and centrifuged using a high-speed refrigerated centrifuge (Hitachi Koki Co., Ltd., CR21GIII). The supernatant was removed by decantation, and the same amount of 85% IPA aqueous solution as the removed supernatant was added to perform re-dispersion. The centrifugation and re-dispersion operations were repeated again, and after the third centrifugation, the precipitate was removed. The resulting precipitate was dried under reduced pressure at 80°C overnight using a vacuum dryer (Advantec, VR-420) and crushed using an extreme mill (Waring, MX-1200X™) to obtain a powdered cellulose derivative composition (B-16).

The degree of substitution of component (B) and the weight average molecular weight of the precursor compound of component (B) were measured by the following method.
(1) Measurement of substitution degree and pretreatment of polysaccharide derivative 1 g of the polysaccharide derivative (component (B)) was dissolved in 100 g of water, and the resulting solution was placed in a dialysis membrane (Spectrapore, molecular weight cutoff 1000) and dialyzed for 2 days. The resulting solution was freeze-dried using a freeze dryer (eyela, FDU1100) to obtain a pretreated polysaccharide derivative.

Calculation of the amount of cationic substrate by Kjeldahl method: 200 mg of the polysaccharide derivative pretreated by the above method was weighed out, 10 mL of concentrated sulfuric acid and one Kjeldahl tablet (Merck) were added, and the mixture was subjected to thermal decomposition in a Kjeldahl decomposition apparatus (BUCHI, K-432). After completion of the decomposition, 30 mL of deionized water was added to the sample, and the nitrogen content (% by mass) of the sample was determined using an automatic Kjeldahl distillation apparatus (BUCHI, K-370), to calculate the mass of the cationic group.

Calculation of hydrocarbon group (alkyl group) mass by Zeisel method: 200 mg of the polysaccharide derivative pretreated by the above method and 220 mg of adipic acid were precisely weighed into a 10 mL vial (Mighty Vial No. 3), and 3 mL of internal standard solution (tetradecane/o-xylene = 1/25 (v/v)) and 3 mL of hydroiodic acid were added, followed by sealing. Additionally, samples for the calibration curve were prepared by adding 2.4 mg or 9 mg of 1-iodododecane instead of the polysaccharide derivative. Each sample was heated at 160°C for 2 hours using a block heater (PIERCE, Reacti-Therm III Heating/Stirring module) while stirring with a stirrer tip. After the sample was allowed to cool, the upper layer (o-xylene layer) was collected and analyzed by gas chromatography (GC) (Shimadzu Corporation, QD2010plus) under the following conditions.
GC analysis conditions Column: Agilent HP-1 (length: 30 m, liquid phase film thickness: 0.25 μL, inner diameter: 32 mm)
Split ratio: 20
Column temperature: 100°C (2 min) → 10°C/min → 300°C (15 min)
Injector temperature: 300°C
Detector: FID
Detector temperature: 330°C
Injection amount: 2 μL
The mass of the alkyl group in the sample was determined from the amount of 1-iodododecane detected by GC.

Calculation of the Substitution Degree of Cationic Group and Hydrophobic Group (2) The mass of the skeleton of the polysaccharide derivative was calculated from the masses of the cationic group and alkyl group and the total sample mass, and each was converted into an amount of substance (mol), thereby calculating the molar average substitution degree of the cationic group and hydrophobic group (2).

Measurement of Weight Average Molecular Weight The weight average molecular weight of hydroxyethyl cellulose (HEC), which is a precursor compound of component (B), was calculated in terms of polyethylene glycol by GPC (gel permeation chromatography).
The measurement conditions are as follows.
Column: TSKgel α-M
Eluent: 50 mmol/L LiBr, 1% CH ₃ COOH, ethanol/water=3/7
・Temperature: 40℃
・Flow rate: 0.6mL/min

Synthesis Example 3: Synthesis of Component (C-1)
180 g of pentaerythritol, 565 g of stearic acid (1.5 moles of fatty acid per mole of pentaerythritol), and 0.27 g of NaOH were charged into a four-neck flask. The four-neck flask was heated while introducing nitrogen gas, and the reaction was carried out at 235°C for 5 hours while removing water produced by the reaction. After confirming that the acid value of the reaction product was 1 mgKOH/g or less, the reaction product was cooled to 70°C, and the precipitated unreacted pentaerythritol was removed by pressure filtration at the same temperature, yielding component (C-1).
The resulting component (C-1) was a mixture of pentaerythritol fatty acid esters, with the proportions of each ester compound being 29% by mass of fatty acid monoesters, 43% by mass of fatty acid diesters, 23% by mass of fatty acid triesters, and 5% by mass of fatty acid tetraesters. The proportions of the fatty acid monoesters, fatty acid diesters, fatty acid triesters, and fatty acid tetraester structures were measured using a high-speed GPC apparatus "HCL-8220GPC" (manufactured by Tosoh Corporation) under the following conditions.
<HPLC conditions>
Column: TSKgel G1000HXL + G2000HXL (connected in series)
Mobile phase: THF (tetrahydrofuran)
Flow rate: 0.7mL/min
Temperature: 25℃
Detector: RI
Sample concentration and injection volume: 1% THF solution, 20 μL

The components used in the examples and comparative examples are shown below.
<Component (A)>
(A-1): A reaction product containing the quaternary ammonium salt mixture produced in Synthesis Example 1.

<(B) component>
Modified hydroxyethyl cellulose as described in Table 1.
In Table 1, for convenience, components (B'-1) to (B'-4) are listed in the column for component (B), but components (B'-1) to (B'-4) are comparative components to component (B) (the same applies to Table 3).

*: In Table 1, the manufacturing method for (B-16) is different from the manufacturing methods for (B-1) to (B-15).

<(C component)>
(C-1): Reaction product containing the pentaerythritol fatty acid ester mixture produced in Synthesis Example 3. (C-2): "Rheodol SP-S10V" (sorbitan monostearate, AV=7 mg KOH/g, SV=155 mg KOH/g, manufactured by Kao Corporation).

<(D) component>
(D-1): Polyoxyethylene lauryl ether having an average added mole number of oxyethylene groups of 30 moles (component (E))
(E-1) Ethylene glycol <Component (F)>
(F-1) Calcium chloride <Component (G)>
(G-1) Citric acid

<Component (I)>
Component (I): A fragrance composition described in Table 2.

<(J) component>
(J-1): Myristyl alcohol (J-2): Stearyl alcohol

<Other ingredients>
Silicone: "X-52-8337M" (Shinetetsu Chemical Co., Ltd.: dimethylpolysiloxane)
Other additives: "Proxel BDN" (concentration of 83 ppm in the compositions of the examples and comparative examples)

<Pretreatment of synthetic fiber underwear (hereinafter sometimes referred to as synthetic fiber underwear)>
Commercially available synthetic fiber underwear (Uniqlo Co., Ltd., "Airism/Crew Neck T-shirt, Short Sleeve, Size XXL", 100% synthetic fiber (polyester, polyurethane)) was washed five times using the commercially available liquid detergent "Attack Antibacterial EX Super Clear Gel" (Kao Corporation, Registered Trademark, manufactured in 2021) to remove the oil from the fabric and then dried.

<Evaluation criteria for dynamic friction coefficient>
In the following preliminary studies and examples, the dynamic friction coefficients were evaluated based on textile product treatment compositions containing components (A) and (C) but not component (B). That is, the dynamic friction coefficients of the textile product treatment compositions were evaluated using a textile product treatment composition containing components (A-1) and (C-1) with the balance being water as Reference 1, a textile product treatment composition containing components (A-1) and (C-2) with the balance being water as Reference 2, and a textile product treatment composition containing components (A-1) and (C-2) with other components in addition to water as Reference 3.

<Preliminary review>
In order to examine the wet friction-reducing effect of the modified hydroxycellulose in Table 1, a textile product treatment composition containing 11 mass % of component (A-1) as component (A), 13.8 mass % of components (B-1) to (B-15) as component (B), 2.8 mass % of component (C-2) as component (C), and the remainder being deionized water, was prepared according to the method described in <Preparation of textile product treatment composition> below.
Furthermore, a textile product treatment composition containing 11% by mass of component (A-1), 2.8% by mass of component (C-2), and the remainder being deionized water was designated as Standard 2.
One piece of pretreated synthetic undergarment was weighed and placed in an electric bucket washing machine ("MiniMini", model number: NA-35) manufactured by Panasonic Corporation. The amounts of tap water (Wakayama City, Wakayama Prefecture) at 20°C and the textile product treatment compositions of each Example and Standard 2 listed in Table 3 were adjusted and mixed so that the bath ratio was 30 (by mass) and the total treatment amount of component (A) and component (C) was 0.1% owf of the weight of the garment, to prepare a treatment aqueous solution. The pretreated synthetic undergarment was placed in the treatment aqueous solution and stirred for an additional 5 minutes. The synthetic undergarment was removed from the electric bucket washing machine, dehydrated in the spin tub of a two-tub washing machine for 5 minutes, dried indoors, and then left in a constant temperature and humidity chamber at 20°C and 65% RH for 24 hours to prepare a treated fabric for evaluation. The treated fabrics were evaluated based on the difference from Standard 2 in the dynamic friction coefficient measured by the <Method for measuring dynamic friction coefficient (wet friction)> described below.
For comparison, the same treatment was carried out using components (B'-1) to (B'-4) instead of component (B), and evaluation was also carried out. The results are shown in Table 3.

<Results of preliminary review>
The friction-reducing effect of component (B) having a specific degree of cationization and alkylation was confirmed.

<Preparation of textile product treatment composition>
In order to clarify the stickiness suppressing effect of the present invention on synthetic fiber products and to confirm the appropriate concentration of component (B), a textile product treatment composition having the composition shown in Table 4 was prepared by the following method. This textile product treatment composition can be used as a fabric softener composition.
In a 300 mL glass beaker (inner diameter 7 cm, height 11 cm) was prepared an amount of deionized water (65°C) necessary to give a textile product treatment composition with a final mass of 300 g. If the composition contained optional surfactants other than components (A) and (C), such as component (D), a water-soluble organic solvent (component (E)), and an acidic compound (component (G)), these were placed in the deionized water, and the beaker was heated in a water bath so that the temperature of the contents reached 65°C or higher.
Next, a stirring blade (turbine-type stirring blade, three blades, blade length 2 cm) attached to a Three-One Motor (manufactured by Shinto Scientific Co., Ltd., "TYPE HEIDON 1200G") was placed at a height of 1 cm from the bottom of the beaker, and while stirring at a rotation speed of 350 r/min, the quaternary ammonium salt mixture (component (A)), the modified polysaccharide derivative (component (B)), and, if optional component (I) is contained, the fragrance (component (I)), optional silicone, and other components, which had previously been melted and mixed at 65°C, were added, and the mixture was stirred for 10 minutes at 350 r/min while heated to 65°C; if optional component (F) is contained, the water-soluble inorganic salt (component (F)) was added, and the mixture was stirred for 10 minutes.
Next, component (C) was added, and the mixture was stirred at 350 rpm for 10 minutes while heating to 65° C. Thereafter, the mixture was cooled by stirring at 350 rpm in a water bath containing ice water until the contents reached 25° C. After the temperature of the contents had dropped to 30° C., deionized water was added in an amount necessary to adjust the concentrations of each component to the values shown in Table 4, and the mixture was stirred at 200 rpm at 30° C. for 10 minutes to obtain a textile product treatment composition.
The pH of the textile treatment composition was adjusted to 3.5 using an aqueous solution of hydrochloric acid or an aqueous solution of sodium hydroxide, as required.

<Textile treatment method>
The fiber treatment method was carried out under the same conditions as in the previous study.
The textile product treatment composition containing 11% by mass of component (A-1), 2.8% by mass of component (C-1), and the remainder being deionized water was designated Reference 1, and the composition of Example 23 not containing component (B) was designated Reference 3. Table 4 shows the compositions with the concentrations of each component.

<Method for measuring dynamic friction coefficient (wet friction)>
The prepared treated fabric was cut into a 7 cm x 15 cm square, allowed to absorb 120% by mass of its own weight in water, and then dried indoors until it had absorbed 80% by mass of its own weight in water. The dynamic friction coefficient was then measured. A friction tester ("TL201Ts," manufactured by Trinity Lab Co., Ltd.) was used, and pig tanned leather (manufactured by Sanriki Seisakusho Co., Ltd.) was attached to the tactile contact. Measurements were performed under the following conditions: speed 1.0 mm/sec, distance 30 mm, weight 20 g, and one round trip. The results of subtracting the dynamic friction coefficient measured under standard 1, standard 2, or standard 3 from the measured dynamic friction coefficient are shown in Table 4. The lower the difference between the dynamic friction coefficient and the standard, the lower the dynamic friction coefficient of the synthetic fiber product in a wet state. This suggests that the stickiness of the synthetic fiber product caused by, for example, sweating, is reduced.

As is clear from the results of Table 3 shown in the preliminary study above, the textile product treatment composition of the present invention, by blending components (A), (B), and (C), can effectively suppress stickiness of synthetic textile products caused by sweating, etc.
Furthermore, the present effect was not impaired even when the content of component (B) was reduced in the textile product treatment compositions of Examples 8 and 16 to 23 in Table 4. That is, according to the present invention, by previously treating clothing that has many parts that come into contact with the skin, such as underwear, with the treatment of the present invention, it is possible to reduce the discomfort that occurs between the synthetic fiber product and the skin after sweating.
The compositions of Examples 8 and 16 to 23 in Table 4 exhibited superior softening effects to synthetic fiber products than the standard without affecting the softness of cotton fibers as softener compositions. Example 23 is an example of a softener composition that exhibits the effects of the present invention and exhibits softening effects on synthetic fiber products and cotton fiber products, and the same can be applied to the other Examples.

Claims (5)

A textile product treatment composition for textile products containing chemical fibers , comprising the following component (A) in an amount of 5% by mass or more and 20% by mass or less, the following component (B) in an amount of 0.005% by mass or more and 15% by mass or less, the following component (C), and water:
<Component (A)>
A quaternary ammonium salt compound represented by the following general formula (1):
[R ^1a C(=O)-O-(C _p H _2p O) _r -C _q H _2q ] _m N ⁺ (R ^2a ) _4-m X ^- (1)
[In the formula, R ^1a is a hydrocarbon group having from 11 to 23 carbon atoms, R ^2a is a group selected from hydrocarbon groups having from 1 to 3 carbon atoms and an HO—(C _p H _2p O) _r —C _q H _2q group, X ⁻ is an organic or inorganic anion, m is a number of from 1 to 3, p and q are each independently a number of 2 or 3, and r is a number of from 0 to 5. When a plurality of R ^1a , R ^2a , p, q, and r are present in the same molecule, they may be the same or different.]
<(B) component>
A modified polysaccharide derivative in which a cationic group and a hydrophobic group represented by formula (2) [hereinafter referred to as hydrophobic group (2)] are bonded to a group formed by removing a hydrogen atom from a hydroxyl group of a polysaccharide or a derivative thereof, wherein the degree of cationic substitution is 0.002 or more and 0.045 or less, and the ratio (α/β) of the degree of substitution (α) of the hydrophobic group (2) to the degree of substitution (β) of the cationic group is 0.2 or more and 4.5 or less.

[In the formula, Z represents a single bond or a hydrocarbon group having an oxygen atom, R ^1b represents a hydrocarbon group having two or more carbon atoms, and * represents the bonding position to the group obtained by removing a hydrogen atom from a hydroxyl group of the polysaccharide or its derivative.]
<(C) component>
One or more ester compounds selected from ester compounds of an alcohol having 1 to 6 carbon atoms and a fatty acid having 12 to 22 carbon atoms. The textile product treatment composition according to claim 1, wherein component (C) contains one or more selected from fatty acid methyl esters, ethylene glycol fatty acid esters, glycerin fatty acid esters, pentaerythritol fatty acid esters, and sorbitan fatty acid esters. The textile product treatment composition according to claim 1 or 2, further comprising, as component (D), a surfactant other than components (A), (B), and (C). 4. The textile product treatment composition according to claim 3, wherein the component (D) is a nonionic surfactant represented by the following general formula (D1):
R ^1d -O-[(C ₂ H ₄ O) _s (C ₃ H ₆ O) _t ]-H (D1)
[In the formula, R ^1d is an alkyl group or alkenyl group having 8 to 18 carbon atoms. s and t are the average number of moles added, where s is a number of 6 to 50 and t is a number of 0 to 5. (C ₂ H ₄ O) and (C ₃ H ₆ O) are bonded in a random or block fashion.] 3. The textile product treatment composition according to claim 1, wherein the component (B) is a compound in which a hydrophobic group (2) and a cationic group are introduced into one or more polysaccharides or polysaccharide derivatives selected from cellulose, guar gum, and starch, or hydroxyalkyl-substituted products thereof.