JP7173857B2 - Garment care composition - Google Patents

Description

The present invention relates to garment care compositions.

It is known to use cellulose derivatives in laundry detergents as care compounds capable of reducing fuzz and pilling on clothing. By adhering the care compound to the textile product in advance before use such as wearing the textile product, it is possible to suppress the generation of fuzz and fluff during use of the textile product.
US Pat. No. 5,300,003 discloses a detergent containing detergent surfactant, organic or inorganic detersive builder and hydrophobically modified nonionic cellulose ether for pill/lint reduction, anti-fading, improved abrasion resistance and/or Laundry detergent compositions are described which impart a fabric appearance benefit selected from or enhanced softness to fabrics and fabrics laundered in an aqueous wash liquor prepared therefrom. US Pat. No. 5,300,000 describes a wash liquid laundry detergent composition containing a cationic softener, a nonionic surfactant and, optionally, hydroxyethyl cellulose as a thickening agent. Patent Document 3 describes an eco-friendly laundry detergent containing ingredients such as alkyl glycosides and hydroxyethyl cellulose. Patent Document 4 describes an eco-friendly cleaning agent comprising nano-activated carbon, acrylic-modified aqueous polyurethane, surfactant, and water containing 5-10% by weight of hydroxyethyl cellulose.

Japanese Patent Publication No. 2001-507396 Chinese Patent Application Publication No. 101812381 Chinese Patent Application Publication No. 106350248 Chinese Patent Application Publication No. 106479685

The present invention is a clothing care product that has clothing care effects such as the effect of reducing friction even when clothing and clothing or clothing and other objects are brought into contact with each other in water and rubbed, and the effect of reducing friction makes it difficult for fuzz to form. A composition is provided. The garment care compositions of the present invention can be used, for example, as friction reducer compositions that are applied to clothes in water or as laundry detergent compositions that are applied to clothes in water.

The present invention relates to a clothing care composition containing 4% to 30% by mass of component (a), 0.1% to 5% by mass of component (b), and water.
(a) component: surfactant containing ionic surfactant (b) component: hydroxyethyl cellulose

INDUSTRIAL APPLICABILITY The present invention can provide a clothing care composition that prevents clothing from being damaged by making it slippery even when clothing is brought into contact with other clothing or rubbed with another object in water. The garment care composition of the present invention may be used, for example, as a friction reducer composition for applied to clothes in water, a garment finish composition for applied to clothes in water or a laundry detergent composition for applied to clothes in water. can provide.

The component (b) of the present invention has a working effect as a sizing agent that moderately adheres objects to each other in a dry state. Some compounds are known to reduce damage even if they come in contact with the environment. However, it was found that when the component (b) coexists with the component (a) of the present invention in water, the component (a) causes the component (b) to exhibit a friction-lowering effect. It was also found that the component (a) enhances the friction-reducing action of the component (b) in water, thereby suppressing damage such as fuzzing even when the clothes are rubbed against each other. Friction reduction in the context of the present invention is specifically recognized as, for example, a reduction in the average dynamic coefficient of friction.

<(a) component>
Component (a) is a surfactant including an ionic surfactant. The component (a) of the present invention has the effect of causing the component (b) to develop a friction-lowering effect in water, thereby suppressing fluffing.

Examples of ionic surfactants include (a1) anionic surfactants [hereinafter sometimes referred to as component (a1)], (a2) cationic surfactants [hereinafter sometimes referred to as component (a2)] and (a3 ) one or more surfactants selected from amphoteric surfactants [hereinafter sometimes referred to as component (a3)].
Further, as an optional surfactant other than the ionic surfactant contained in component (a), nonionic surfactant (a4) [hereinafter sometimes referred to as component (a4)] may be mentioned.

<(a1) anionic surfactant>
Specific examples of the anionic surfactant of component (a1) include the following components (a1-1), (a1-2), (a1-3), (a1-4), and (a1-5). One or more anionic surfactants selected from ingredients may be mentioned.
The anionic surfactant of the preferred component (a1) is an anionic surfactant having a group selected from sulfonate salts and sulfate ester salts, from the viewpoint of allowing the component (b) to exhibit friction-reducing action in water and suppressing fluffing. is. From this point of view, the anionic surfactant (a1) is composed of the following components (a1-1), (a1-2), (a1-3), (a1-4), and (a1-5) One or more selected anionic surfactants are preferred.
(a1-1) component: alkyl or alkenyl sulfate (a1-2) component: polyoxyalkylene alkyl or alkenyl ether sulfate having an oxyalkylene group having 2 to 3 carbon atoms (a1-3) component: alkyl or alkenylbenzenesulfonate (a1-4) component: sulfonate (a1-5) component other than component (a1-3): fatty acid having 12 to 24 carbon atoms or a salt thereof

When the clothing care composition of the present invention contains an anionic surfactant, the anionic surfactant is the above (a1- 2) It preferably contains one or more anionic surfactants selected from components (a1-3) and (a1-4).

More specifically, the alkyl or alkenyl sulfate salt, which is the component (a1-1), includes an alkyl sulfate salt having an alkyl group having 10 or more and 18 or less carbon atoms and an alkenyl group having 10 or more and 18 or less carbon atoms. and one or more anionic surfactants selected from alkenyl sulfate ester salts of From the viewpoint of making the component (b) exhibit a friction-reducing effect in water and suppressing fluffing, the component (a1-1) is an alkyl sulfate ester salt having an alkyl group having 12 or more and 16 or less carbon atoms, and an alkenyl carbon One or more anionic surfactants selected from alkenyl sulfate ester salts having a number of 12 or more and 16 or less are preferred.

More specifically, as the polyoxyalkylene alkyl or alkenyl ether sulfate ester salt having an oxyalkylene group having 2 to 3 carbon atoms, which is the component (a1-2), the alkyl group has 10 to 18 carbon atoms, And a polyoxyalkylene alkyl ether sulfate ester salt having an average number of alkylene oxide addition moles of 1 or more and 3 or less, and a polyoxyalkylene having an alkenyl group having 10 or more and 18 or less carbon atoms and an average alkylene oxide addition mole number of 1 or more and 3 or less One or more anionic surfactants selected from alkenyl ether sulfate ester salts are included. Since the number of added moles here is an average value, component (a1-2) is expressed as polyoxyalkylene for convenience even when the average number of added moles is 1. The oxyalkylene group includes an oxyalkylene group having 2 or more and 3 or less carbon atoms. Examples of the oxyalkylene group having 2 to 3 carbon atoms include one or more groups selected from an oxypropylene group and an oxyethylene group. From the standpoint of allowing component (b) to exhibit friction-reducing action in water and suppressing fluffing, component (a1-2) has an alkyl group with 12 to 16 carbon atoms and an ethylene oxide average addition mole number of 1 to 3. One or more selected from the following polyoxyethylene alkyl ether sulfate ester salts and polyoxyethylene alkenyl ether sulfate ester salts having an alkenyl group having 12 to 18 carbon atoms and an ethylene oxide average added mole number of 1 to 3 Anionic surfactants are preferred. The average added mole number of ethylene oxide is preferably 2.5 mol or less, more preferably 2 mol or less, still more preferably 1.5 mol or less, and preferably 1 mol, from the same viewpoint as described above. That's it.

More specifically, the alkylbenzene sulfonate, which is the component (a1-3), is an alkylbenzene sulfonate having an alkyl group having 10 or more and 18 or less carbon atoms, or an alkenylbenzene having an alkenyl group having 10 or more and 18 or less carbon atoms. One or more anionic surfactants selected from sulfonates are included.

Component (a1-3) is preferably an alkylbenzene sulfonate having an alkyl group of 11 or more and 16 or less carbon atoms, from the viewpoint of allowing component (b) to exhibit a friction-reducing action in water and suppressing fluffing. Sodium alkylbenzenesulfonate having 11 or more and 16 or less carbon atoms is more preferable.

More specifically, the sulfonate other than the component (a1-3), which is the component (a1-4), has an alkyl group having 10 or more and 18 or less carbon atoms which may optionally have a hydroxyl group. Alkane sulfonates, α-olefin sulfonates in which the α-olefin portion has 10 to 18 carbon atoms, internal olefin sulfonates in which the internal olefin portion has 16 to 24 carbon atoms, and fatty acid portions of which the number of carbon atoms is 10 At least one selected from α-sulfo fatty acid salts having at least 18 carbon atoms, and α-sulfo fatty acid lower alkyl ester salts having at least 10 to 18 carbon atoms in the fatty acid portion and 1 to 5 carbon atoms in the ester portion. of anionic surfactants.

Component (a1-5) is a fatty acid having from 12 to 24 carbon atoms or a salt thereof. A fatty acid having 12 to 24 carbon atoms or a salt thereof is an anionic surfactant having an aliphatic hydrocarbon group having 11 to 23 carbon atoms as a hydrophobic group and a carboxylic acid or a salt thereof as a hydrophilic group. More specific examples of component (a1-5) include lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, and salts thereof.

Salts of the anionic surfactant as the component (a1) include salts of one or more compounds selected from alkali metals and alkanolamines having 2 to 6 carbon atoms. As the alkali metal, one or more compounds selected from sodium and potassium are preferred. The alkanolamine having 2 to 6 carbon atoms is one or more compounds selected from monoethanolamine, diethanolamine, triethanolamine, N-methylmonoethanolamine, N-methyldiethanolamine and N,N-dimethylmonoethanolamine. is preferred.

The component (a1) of the present invention is the component (a1-2), the component (a1-3), and the component (a1-4) from the viewpoint of making the component (b) exhibit a friction-reducing effect in water and suppressing fluffing. It preferably contains one or more anionic surfactants selected from The component (a1) of the present invention is the component (a1-2) and the component (a1-3) in the component (a1) from the viewpoint of making the component (b) exhibit a friction-reducing action in water and suppressing fluffing. and (a1-4) the total amount of one or more anionic surfactants selected from components is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and 80% by mass. % or more is more preferable, 90% by mass or more is even more preferable, and 100% by mass or less is preferable. All of the components (a1) may be one or more anionic surfactants selected from components (a1-2), (a1-3) and (a1-4). That is, the total amount of one or more anionic surfactants selected from components (a1-1), (a1-2) and (a1-4) in component (a1) is 100% by mass. good too.

<(a2) component: cationic surfactant>
Component (a2) is a cationic surfactant.
The cationic surfactant of component (a2) is not particularly limited, but includes cationic surfactants containing 1 to 3 aliphatic hydrocarbon groups having 8 to 22 carbon atoms. More specific examples include quaternary ammonium compounds represented by the following general formula (a2-1).

[In the formula, R ¹ is an aliphatic hydrocarbon group having 8 to 24 carbon atoms, R ² and R ³ each independently represent an aliphatic hydrocarbon group having 8 to 24 carbon atoms, a group selected from an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, and a benzyl group, and R ⁴ is an alkyl group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms. and a benzyl group, and X 1 ^- is an anion. ]

In general formula (a2-1), R ¹ and optionally R ² and R ³ are aliphatic hydrocarbon groups having 8 or more and 24 or less carbon atoms. From the viewpoint of allowing component (b) to exhibit friction-reducing action in water and suppressing fluffing, the number of carbon atoms in these groups is 8 or more, preferably 10 or more, and 24 or less, preferably 22 or less, and more preferably 20. Below, more preferably 18 or less, still more preferably 16 or less. Among R ² , R ³ and R ⁴ , specific examples of the alkyl group having 1 to 3 carbon atoms include methyl group, ethyl group and propyl group. Among R ² , R ³ and R ⁴ , the hydroxyalkyl group having 1 to 3 carbon atoms includes 2-hydroxyethyl group, 2-hydroxypropyl group and 3-hydroxypropyl group. X ⁻ is an anion, and examples thereof include halogen ions and alkyl sulfate ions having 1 to 3 carbon atoms. Halogen ions include chloride ions, bromo ions, and iodine ions. Examples of the alkyl sulfate ion having 1 to 3 carbon atoms include methyl sulfate ion and ethyl sulfate ion.

The clothing care composition of the present invention maintains the original texture of clothing, while allowing the component (b) to exert a friction-reducing effect in water, thereby suppressing fuzzing. The content of the cationic surfactant having two or three aliphatic hydrocarbon groups of 12 or more and 24 or less is preferably 30% by mass or less, more preferably 20% by mass or less, and still more preferably 15% by mass. %, more preferably 10% by mass or less, and even more preferably 5% by mass or less. The lower limit of this content can be 0% by mass or more. The content of the cationic surfactant having two or three aliphatic hydrocarbon groups having 12 to 24 carbon atoms in the component (a) may be 0% by mass.

<(a3) amphoteric surfactant>
(a3) Component amphoteric surfactants include one or more amphoteric surfactants selected from amine oxides and betaines. Although amine oxide itself does not have ions, it is classified as an ionic surfactant in the present invention because it can be polarized into δ+ and δ− in water. As the amine oxide, an amine oxide having an aliphatic hydrocarbon group having 7 or more and 18 or less carbon atoms is preferable. Specific examples include compounds represented by the following general formula (a3-1).

[In the formula, R ⁵ has 8 or more and 18 or less carbon atoms when k is 0 or when k is 1 and X is a group selected from -O(CO)- and -(NH)(CO)- When k is 1 and X is a group selected from -(CO)O-, -(CO)(NH)-, an aliphatic hydrocarbon having 7 to 17 carbon atoms is a group, R ⁶ is an alkylene group having 1 to 6 carbon atoms, and X is -(CO)O-, -(CO)(NH)-, -O(CO)-, -(NH)(CO )— is a group selected from k is the number of 0 or 1, and R ⁷ and R ⁸ are each an alkyl group or a hydroxyalkyl group having 1 or more and 3 or less carbon atoms. ]

^In general formula (a3-1), when k is 0 or when k is 1 and X is a group selected from -O(CO)- and -(NH)(CO)-, the number of carbon atoms Aliphatic hydrocarbon groups of 8 or more and 16 or less can be mentioned, and from the viewpoint of allowing the component (b) to exhibit a friction-lowering effect in water and suppressing fluffing, an aliphatic hydrocarbon group of 10 or more and 16 or less carbon atoms is more preferable. , an alkyl or alkenyl group having 10 to 14 carbon atoms is more preferable, and an alkyl or alkenyl group having 12 to 14 carbon atoms is more preferable.

In general formula (a3-1), R ⁵ has 7 or more carbon atoms and 17 carbon atoms when k is 1 and X is a group selected from —(CO)O— and —(CO)(NH)— The following aliphatic hydrocarbon groups can be mentioned. From the viewpoint of allowing the component (b) to exhibit friction-reducing action in water and suppressing fluffing, an aliphatic hydrocarbon group having 7 to 15 carbon atoms is preferable, and an aliphatic hydrocarbon group having 9 to 15 carbon atoms is more preferable. An alkyl group or alkenyl group having 9 or more and 13 or less carbon atoms is more preferable, and an alkyl or alkenyl group having 11 or more and 13 or less carbon atoms is even more preferable.
In general formula (a3-1), X is preferably -(CO)O- or -(CO)(NH)-.
The carbon number of R6 is preferably ² or 3. R ⁷ and R ⁸ are preferably methyl groups.

More preferred specific compounds of amine oxides include N-lauryl-N,N-dimethylamine oxide, N-myristyl-N,N-dimethylamine oxide, N-palmityl-N,N-dimethylamine oxide, N- lauroylaminopropyl-N,N-dimethylamine oxide, N-myristoylaminopropyl-N,N-dimethylamine oxide, N-palmitoylaminopropyl-N,N-dimethylamine oxide, N-lauryl-N-ethyl-N- methylamine oxide, N-lauryl-N-methyl-N-(2-hydroxyethyl)amine oxide, N-myristyl-N-ethyl-N-methylamine oxide, N-myristyl-N-methyl-N-(2- hydroxyethyl)amine oxide, N-palmityl-N-ethyl-N-methylamine oxide, N-palmityl-N-methyl-N-(2-hydroxyethyl)amine oxide, N-lauroylaminopropyl-N-ethyl-N -methylamine oxide, N-lauroylaminopropyl-N-methyl-N-(2-hydroxyethyl)amine oxide, N-myristoylaminopropyl-N-ethyl-N-methylamine oxide, N-myristoylaminopropyl-N- from methyl-N-(2-hydroxyethyl)amine oxide, N-palmitoylaminopropyl-N-ethyl-N-methylamine oxide and N-palmitoylaminopropyl-N-methyl-N-(2-hydroxyethyl)amine oxide One or more selected compounds are included.

More preferred specific compounds of amine oxides include N-lauryl-N,N-dimethylamine oxide, N-myristyl-N,N-dimethylamine oxide, N-palmityl-N,N-dimethylamine oxide, N- one or more compounds selected from lauroylaminopropyl-N,N-dimethylamine oxide, N-myristoylaminopropyl-N,N-dimethylamine oxide, and N-palmitoylaminopropyl-N,N-dimethylamine oxide; be done.

As betaine, betaine having a hydrocarbon group having 7 to 18 carbon atoms is preferable. Specific examples include compounds represented by the following general formula (a3-2).

[In the formula, R ⁹ has 8 or more and 18 or less carbon atoms when j is 0 or when j is 1 and Y is a group selected from -O(CO)- and -(NH)(CO)- When j is 1 and Y is a group selected from -(CO)O-, -(CO)(NH)-, an aliphatic hydrocarbon having 7 to 17 carbon atoms is the base. R ¹⁰ is an alkylene group having 1 to 6 carbon atoms. Y is a group selected from -(CO)O-, -(CO)(NH)-, -O(CO)-, -(NH)(CO)-, -O-, j is 0 or 1 is a number. R ¹¹ and R ¹² are each an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms, and R ¹³ is an alkylene group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. Z is a group selected from —SO ₃ ⁻ , —OSO ₃ ^— and —COO ^— . ]

In general formula (a3-2), R ⁹ is carbon when j is 0 or when j is 1 and Y is a group selected from —O(CO)— and —(NH)(CO)— An aliphatic hydrocarbon group having a number of 8 or more and 16 or less can be mentioned, and an aliphatic hydrocarbon group of 10 or more and 16 or less is more preferable from the viewpoint of making the component (b) exhibit a friction-lowering effect in water and suppressing fluffing. An alkyl group or alkenyl group having 10 or more and 14 or less carbon atoms is more preferable.

In general formula (a3-2), R ⁹ has 7 to 17 carbon atoms when j is 1 and Y is a group selected from —(CO)O— and —(CO)(NH)—. The following aliphatic hydrocarbon groups, preferably aliphatic hydrocarbon groups having 7 or more and 15 or less carbon atoms, preferably 9 or more carbon atoms, from the viewpoint of allowing the component (b) to exhibit a friction-reducing effect in water and suppressing fluffing. An aliphatic hydrocarbon group of 15 or less is more preferable, and an alkyl or alkenyl group having 9 or more and 13 or less carbon atoms is even more preferable.

In general formula (a3-2), R ¹⁰ is an alkylene group having 1 to 4 carbon atoms, more preferably 2 or 3 carbon atoms, from the viewpoint of ease of production. Moreover, R ¹¹ and R ¹² are preferably a methyl group, an ethyl group or a hydroxyethyl group. R ¹³ is preferably an alkylene group having 1 to 3 carbon atoms which may be substituted with a hydroxy group.
In general formula (a3-2), j is preferably 0.
In general formula (a3-2), Z is preferably —SO ₃ ^— from the viewpoint of allowing the component (b) to exhibit a friction-lowering effect in water and suppressing fluffing.

More preferred specific compounds of betaine include lauryl (2-hydroxy-3-sulfopropyl)dimethylbetaine, myristyl (2-hydroxy-3-sulfopropyl)dimethylbetaine, and palmityl (2-hydroxy-3-sulfopropyl ) one or more compounds selected from dimethyl betaine.

In the clothing care composition of the present invention, the content of the ionic surfactant in the component (a) is preferably 50 from the viewpoint of allowing the component (b) to exhibit a friction-lowering effect in water and suppressing fuzzing. % by mass or more, more preferably 60% by mass or more, still more preferably 70% by mass or more, even more preferably 80% by mass or more, and preferably 100% by mass or less, and may be 100% by mass.

In the clothing care composition of the present invention, the content of the anionic surfactant (a1) in the component (a) is preferable from the viewpoint of allowing the component (b) to exhibit a friction-reducing effect in water and suppressing fluffing. is 50% by mass or more, more preferably 60% by mass or more, still more preferably 70% by mass or more, still more preferably 80% by mass or more, and preferably 100% by mass or less, and 100% by mass good.

<(a4) nonionic surfactant: any surfactant>
The clothing care composition of the present invention can contain a nonionic surfactant as component (a4) within a range that does not interfere with the friction-reducing action or clothing care effect of the present invention. The nonionic surfactant is not particularly limited, but from the viewpoint of not interfering with the friction-reducing action or clothing care effect of the present invention, a polyoxyalkylene alkyl ether type nonionic surfactant is preferred, more preferably carbon It is a polyoxyalkylene alkyl ether type nonionic surfactant having 2 or more and 3 or less oxyalkylene groups. Moreover, fatty acid alkanolamide can also be contained as a (a4) component. Specific examples of (a4) nonionic surfactants include compounds represented by the following general formula (a4-1).
R ¹⁴ —O[(EO) _a /(PO) _b ]—H (a4-1)
[In the formula, R ¹⁴ represents an alkyl or alkenyl group having 10 or more, preferably 12 or more and 18 or less, preferably 16 or less, more preferably 14 or less carbon atoms. EO is an ethyleneoxy group and PO is a propyleneoxy group. a is the number average number of added moles of EO groups, and b is the number average number of added moles of PO groups. The total number of a and b is preferably 5 or more and 100 or less. The number a is preferably 5 or more and 100 or less, and the number b is preferably 0 or more and 10 or less. However, the case where both a and b are 0 is excluded. ]
In general formula (a4-1), EO and PO may be a random bond or a block bond. The nonionic surfactant of general formula (a4-1) preferably contains EO.

The content of component (a4) in component (a) of the present invention is preferably 40% by mass or less, more preferably 30% by mass or less, from the viewpoint of not interfering with the friction-reducing action or clothing care effect of the present invention. , more preferably 20% by mass or less, and even more preferably 10% by mass or less. Further, when the clothing care composition of the present invention is used as a detergent composition for clothing, from the viewpoint of enhancing the washability of stains adhering to clothing and achieving both the washability and the effects of the present invention, The content of component (a4) in component (a) of is preferably 5% by mass or more.

<(b) component>
The (b) component of the present invention is hydroxyethyl cellulose. Hydroxyethyl cellulose is used together with a surfactant containing an ionic surfactant, which is the component (a), and water to reduce friction between clothes or between clothes and other contact bodies, and suppress damage to clothes. can do. As hydroxyethyl cellulose, from the viewpoint of reducing friction between clothes or between clothes and other contact bodies and suppressing damage to clothes, the viscosity of a 2% by mass aqueous solution (20 ° C.) is 50 mPa or more and 500,000 mPa or less. preferably 200 mPa s or more, more preferably 500 mPa s or more, and preferably 100,000 mPa s or less, still more preferably 50,000 mPa s or less, and more preferably It is 2 mPa·s or less, and more preferably 10,000 mPa·s or less. The viscosity of hydroxyethyl cellulose can be measured by the following measuring method.

[Method for measuring the viscosity of hydroxyethyl cellulose]
10 g of hydroxyethyl cellulose was dissolved in 490 g of deionized water to prepare a 2 mass % hydroxyethyl cellulose aqueous solution. The temperature of the aqueous solution was adjusted to a temperature range of 20±0.5° C. and allowed to stand for 1 hour. Using a Brookfield type rotational viscometer [manufactured by Toki Sangyo Co., Ltd., model number: BM], measurement was performed under the condition of 30 r/m (No. 4 rotor). The viscosity was read one minute after the start of measurement. If the viscosity is less than 1000 mPa·s, No. 3 rotors were used, and when the viscosity exceeded 18000 mPa·s, the rotation speed was set to 12 r/m for measurement.

The weight-average molecular weight of component (b) of the present invention is preferably 1,000 or more, more preferably 10,000 or more, and still more preferably 30,000 or more, from the viewpoint of enhancing friction-reducing action in water and suppressing fluffing. , More preferably 50,000 or more, still more preferably 70,000 or more, still more preferably 100,000 or more, still more preferably 300,000 or more, and from the viewpoint of ease of handling, preferably 3 million or less , more preferably 2,500,000 or less. The weight average molecular weight of the polysaccharide derivative of the precursor compound can be calculated by GPC (gel permeation chromatography) in terms of polyethylene glycol.

<Water>
The clothing care composition of the present invention preferably contains water, and more preferably is a liquid composition containing water. As the water used for the clothing care composition of the present invention, deionized water, distilled water, or water containing 0.1 mg/kg or more and 10 mg/kg or less of hypochlorite such as sodium hypochlorite is used. can be done.

<Clothing>
In the present invention, clothing refers to fabrics such as woven fabrics, knitted fabrics, and non-woven fabrics using the above-mentioned chemical fibers and natural fibers, and undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, and towels obtained using the same. , knits, socks, underwear, tights and other products. Clothing containing cotton fibers is preferred.

<Fiber>
The fibers constituting the clothes to which the clothes care composition of the present invention is applied may be either chemical fibers or natural fibers. Examples of chemical fibers include polyamide fibers (nylon, etc.), polyester fibers (polyester, etc.), polyacrylonitrile fibers (acrylic, etc.), polyvinyl alcohol fibers (vinylon, etc.), polyvinyl chloride fibers (polyvinyl chloride etc.), polyvinylidene chloride fibers (vinylidene, etc.), polyolefin fibers (polyethylene, polypropylene, etc.), polyurethane fibers (polyurethane, etc.), polyvinyl chloride/polyvinyl alcohol copolymer fibers (polyclaral, etc.), and the like. Natural fibers include seed hair fibers (cotton, cotton, kapok, etc.), bast fibers (hemp, flax, ramie, hemp, jute, etc.), leaf vein fibers (manila hemp, sisal hemp, etc.), palm fibers, rush, and straw. , animal hair fibers (wool, mohair, cashmere, camel hair, alpaca, vicuna, angora, etc.), silk fibers (domestic silk, wild silk), feathers, cellulose fibers (rayon, polynosic, cupra, acetate, etc.), etc. be done. The fibers targeted by the present invention include natural fibers, preferably cotton fibers.

<Clothing care agent composition>
The clothing care agent composition of the present invention suppresses damage to clothing, such as pilling, by reducing the coefficient of friction when clothing comes into contact with other clothing or when clothing comes into contact with other objects in water. It means a composition having an inhibitory action. In addition, as an action of the clothing care composition, the clothing containing dirt adhered during wear is brought into contact with the liquid containing the clothing care composition of the present invention and the newly added water, thereby adhering to the clothing. It may also have the effect of reducing stains that have been removed. For example, the laundry care composition of the present invention can be used as a laundry detergent composition having a laundry care effect. Also, the clothing care composition of the present invention can be applied to clothing in water and used as a friction reducing agent composition that reduces the coefficient of friction when clothing and clothing come into contact with each other or when clothing and other objects come into contact with each other. can.

<Composition, etc.>
The content of the component (a) in the clothing care agent composition of the present invention is such that the component (b) exhibits a friction-reducing effect between clothing in water and between clothing or between clothing and other objects. , From the viewpoint of suppressing damage to clothes, for example, suppressing the occurrence of pilling on clothes, it is 4% by mass or more, preferably 5% by mass or more, more preferably 7% by mass or more, and further It is preferably 10% by mass or more, and from the viewpoint of enhancing the stability of the clothing care composition of the present invention containing the component (b), it is 30% by mass or less, preferably 25% by mass or less, and more It is preferably 20% by mass or less, more preferably 17% by mass or less.

The content of component (b) in the clothing care composition of the present invention exerts a friction-reducing action between clothing and clothing or between clothing and other objects in water, and the average dynamic friction coefficient is increased. From the viewpoint of reducing the It is more preferably 1% by mass or more, and still more preferably 2% by mass or more, and the degree of friction reduction per mass of component (b) is higher, and component (b) can be used more efficiently. Therefore, it is 5% by mass or less, preferably less than 5% by mass, more preferably 4% by mass or less, still more preferably 3% by mass or less, even more preferably 2% by mass or less, and more It is more preferably 1.5% by mass or less, and even more preferably 1% by mass or less. In addition, when the clothing care composition of the present invention is a liquid composition containing water, the inclusion of component (b) in the clothing care composition of the present invention from the viewpoint of preventing the viscosity of the composition from becoming too high. The amount is 5% by mass or less, preferably less than 5% by mass, more preferably 4% by mass or less, even more preferably 3% by mass or less, even more preferably 2.5% by mass or less. Yes, more preferably 2% by mass or less. In addition, by expressing the effect of reducing friction between clothes in water or between clothes and other objects, damage to clothes can be suppressed, for example, the occurrence of pilling on clothes can be suppressed. The content of component (b) in the clothing care composition of the present invention is 0.1% by mass or more, preferably 0.3% by mass or more, and more preferably 0.5% by mass or more. , more preferably 0.7% by mass or more, and even more preferably 1% by mass or more, and excessive decrease in friction may conversely increase the number of pills, so from that point of view, ( The upper limit of the content of component b) is 5% by mass or less, preferably less than 5% by mass, more preferably 4% by mass or less, and even more preferably 3% by mass or less.

From the viewpoint of making the component (b) in the clothing care composition of the present invention exhibit a friction-reducing effect in water and further enhancing the friction-reducing effect, the component (b) in the clothing care composition of the present invention is Component (a)/component (b), which is the mass ratio of the content of component (a) to the content, is preferably 1 or more, more preferably 2 or more, and still more preferably 2.5 or more. , more preferably 4 or more, and from the same viewpoint, preferably 30 or less, more preferably 25 or less, even more preferably 20 or less, still more preferably 18 or less, and more More preferably, it is 15 or less.

The pH at 30° C. of the clothing care composition of the present invention is preferably 10 or less, more preferably 9 or less, and still more preferably 8.5 or less, from the viewpoint of further suppressing pilling on clothing. , still more preferably 8 or less, still more preferably 7.5 or less, still more preferably 7 or less, still more preferably 6.5 or less, and from the same viewpoint, preferably It is 2 or more, more preferably 2.5 or more, and still more preferably 3 or more. The pH can be measured by the following method.

[Method for measuring pH]
A pH meter (pH/ion meter F-23, manufactured by HORIBA) is connected to a combined electrode for pH measurement (glass-sliding sleeve type, manufactured by HORIBA), and the power is turned on. A saturated potassium chloride aqueous solution (3.33 mol/L) is used as the pH electrode internal liquid. Next, pH 4.01 standard solution (phthalate standard solution), pH 6.86 (neutral phosphate standard solution), and pH 9.18 standard solution (borate standard solution) are each filled in a 100 mL beaker, and 30 ℃ for 30 minutes. A pH measuring electrode is immersed in a standard solution adjusted to a constant temperature for 3 minutes, and calibrated in the order of pH 6.86→pH 9.18→pH 4.01. A sample to be measured is adjusted to 30° C., the electrode of the pH meter is immersed in the sample, and the pH is measured after 1 minute.

The viscosity at 30° C. of the clothing care composition of the present invention is preferably 50 mPa·s or more, more preferably 100 mPa·s or more, and preferably 100 mPa·s or more, from the viewpoint of ease of use of the clothes care composition. is 100,000 mPa·s or less, more preferably 50,000 mPa·s or less, and still more preferably 5000 mPa·s or less.

In addition, the clothing care composition of the present invention may contain the following components (c1) to (c7).
(c1) Anti-soil redeposition agents such as polyacrylic acid, polymaleic acid and carboxymethyl cellulose, and dispersing agents in the composition in an amount of 0.01% by mass or more and 10% by mass or less.
(c2) A bleaching agent such as hydrogen peroxide, sodium percarbonate or sodium perborate in the composition at 0.01% by mass or more and 10% by mass or less (c3) Tetraacetylethylenediamine, the general formula (I) of JP-A-6-316700 -2) 0.01% by mass or more and 10% by mass or less of a bleaching activator such as bleaching activators represented by to (I-7) in the composition;
(c4) one or more enzymes selected from cellulase, amylase, pectinase, protease and lipase, preferably one or more enzymes selected from amylase and protease in the composition at 0.001 mass% or more, preferably 0.01 % by mass or more, more preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and 2% by mass or less, preferably 1% by mass or less (c5) fluorescent dye, such as Tinopal CBS (trade name, Ciba Specialty Chemicals) and Whitex SA (trade name, manufactured by Sumitomo Chemical Co., Ltd.) 0.001% by mass or more and 1% by mass or less of a fluorescent dye in the composition (c6) butylhydroxytoluene, distyrenated cresol, Antioxidants such as sodium sulfite and sodium hydrogen sulfite in the composition in an amount of 0.01% by mass or more and 2% by mass or less.

The present invention provides a method of caring for fabrics, wherein the fabrics are treated with the fabric care composition of the present invention and a water-containing care liquid. For this care method, the items described in the care method of the present invention can be appropriately applied. The treatment of clothing includes a treatment that causes the clothing to rub against each other in water. The care method of the present invention may be applied during hand washing.

The water used in the clothes care method of the present invention is preferably water having hardness. The water hardness is preferably 1° dH or higher, more preferably 2° dH or higher, and still more preferably 3.5° dH or higher, in German hardness, from the viewpoint of further improving the effect of imparting texture to textile products such as clothing. Even more preferably 5°dH or more, still more preferably 7°dH or more, and preferably 20°dH or less, more preferably 18°dH or less, and even more preferably 15°dH or less. Here, the German hardness (°dH) in this specification refers to the concentration of calcium and magnesium in water, calculated as CaCO ₃ equivalent concentration, of 1 mg/L (ppm) = about 0.056°dH (1°dH = 17. 8 ppm).

The concentrations of calcium and magnesium for this German hardness are determined by chelate titration using ethylenediaminetetraacetic acid disodium salt.

A specific method for measuring the German hardness of water in the present specification is shown below.
[Method for measuring German hardness of water]
〔reagent〕
・0.01 mol/l EDTA/2Na solution: 0.01 mol/l aqueous solution of disodium ethylenediaminetetraacetate (solution for titration, 0.01 M EDTA-Na2, manufactured by SIGMA-ALDRICH)
・Universal BT indicator (product name: Universal BT, manufactured by Dojindo Laboratories)
- Ammonia buffer solution for hardness measurement (solution of 67.5 g of ammonium chloride dissolved in 570 ml of 28 w/v% ammonia water and made up to 1000 ml with deionized water)
[Measurement of hardness]
(1) Collect 20 ml of water as a sample in a conical beaker with a whole pipette.
(2) Add 2 ml of ammonia buffer for hardness measurement.
(3) Add 0.5 ml of Universal BT indicator. Confirm that the solution after the addition is reddish purple.
(4) A 0.01 mol/l EDTA·2Na solution is added dropwise from a burette while shaking the conical beaker well, and the end point of the titration is when the sample water turns blue.
(5) Calculate the total hardness by the following formula.
Hardness (°dH) = T x 0.01 x F x 56.0774 x 100/A
T: Titration volume (mL) of 0.01 mol/l EDTA/2Na solution
A: Sample volume (20 mL, volume of water to be sampled)
F: Factor of 0.01 mol/l EDTA/2Na solution

The care liquid used in the present invention is preferably a care liquid obtained by mixing component (a), component (b), and water having a German hardness of 1°dH or more and 20°dH or less.

In the clothing care method of the present invention, the value of the bath ratio represented by the ratio of the mass (kg) of the clothing and the amount (liter) of the care liquid, that is, the amount of care liquid (liter) / the mass of clothing (kg) ( Hereinafter, this ratio may be referred to as the bath ratio) is preferably 2 or more, more preferably 3 or more, and preferably 100 or less, more preferably 100 or less, more preferably It is 60 or less, more preferably 30 or less, still more preferably 10 or less.

In the clothing care method of the present invention, the clothing is preferably treated by bringing it into contact with a care liquid. From the viewpoint of the effect of the present invention, the time for which the clothes are brought into contact with the care liquid is preferably 1 minute or longer, more preferably 2 minutes or longer, still more preferably 3 minutes or longer, and preferably 6 hours or shorter, and even more preferably 3 hours or less, more preferably 1 hour or less.

Examples of embodiments using the clothing care composition of the present invention include:
(1) A method of improving the slipperiness of clothes in a hand washing liquid by allowing the clothing care composition of the present invention to be present in the washing liquid in the range of 1 g / L or more and 20 g / L or less during hand washing (2 ) Component (a) is present in the range of 0.02 g / L to 3 g / L and component (b) is present in the range of 0.02 g / L to 1 g / L in the washing liquid during hand washing. Method for improving slipperiness of clothes inside (3) Washing method ( 4) Washing clothes by hand using a washing liquid containing 0.02 g/L or more and 3 g/L or less of component (a) and 0.02 g/L or more and 1 g/L of component (b). methods and the like.

<Ingredients>
[(a) component: ionic surfactant]
LAS Na: Sodium alkylbenzenesulfonate (mixed alkyl group having 11 to 18 carbon atoms in the alkyl group)
AS Na: Alkyl sulfate sodium salt (the alkyl group is a mixed alkyl group having 12 to 16 carbon atoms)
AES-Na (1): polyoxyethylene alkyl ether sulfate sodium salt (average number of added moles of oxyethylene group is 1 mol, alkyl group is a mixed alkyl group having 12 to 16 carbon atoms)
AES-Na (2): Polyoxyethylene alkyl ether sulfate ester sodium salt (average number of added moles of oxyethylene group is 2 mol, alkyl group is a mixed alkyl group having 12 to 16 carbon atoms)
AES-Na (3): polyoxyethylene alkyl ether sulfate sodium salt (average number of added moles of oxyethylene group is 3 mol, alkyl group is a mixed alkyl group having 12 to 16 carbon atoms)
IOS-Na: Sodium internal olefin sulfonate with 16 carbon atoms

[(a) component: other surfactants]
AE (1): polyoxyethylene lauryl ether (average addition mole number of oxyethylene group is 6 mol)
AE (2): Polyoxyethylene lauryl ether (average addition mole number of oxyethylene group is 10 mol)

[(b) component]
HEC (1): hydroxyethyl cellulose (4800 to 6000 mPa s/2% by mass aqueous solution/20°C)
HEC (2): hydroxyethyl cellulose (200-300 mPa s/2% by mass aqueous solution/20° C.)
HEC (3): hydroxyethyl cellulose (800 to 1500 mPa s/2% by mass aqueous solution/20°C)

[Component (b'): Comparative compound of component (b)]
CMC: carboxymethylcellulose sodium (n = 1050, manufactured by Tokyo Kasei Co., Ltd.)
PEG (1): polyethylene glycol 500000 (manufactured by Wako Pure Chemical Industries, Ltd., weight average molecular weight 500000)
PEG (2): polyethylene glycol 2000000 (manufactured by Wako Pure Chemical Industries, Ltd., weight average molecular weight 2000000)

[Optional component]
・ Sodium hydroxide (used as a 10% by mass sodium hydroxide aqueous solution)
・Citric acid (used as a 10% by mass citric acid aqueous solution)
・Na benzoate
・Phenoxyethanol

〔water〕
deionized water

<Preparation of clothing care composition>
Using the above ingredients, the clothing care compositions shown in Tables 1 to 4 were prepared and evaluated for the following items. The results are shown in Tables 1-4.
Specifically, the clothing care compositions shown in Tables 1 to 4 were prepared as follows. A Teflon (registered trademark) stirrer piece having a length of 5 cm was put into a glass beaker having a capacity of 200 mL, and the mass was measured. Next, 80 g of ion-exchanged water at 20° C., component (a), component (b) or component (b′), and arbitrary components were added, and the upper surface of the beaker was sealed with saran wrap (registered trademark).
The beaker containing the contents was placed in a 60°C water bath installed in a magnetic stirrer, and stirred at 100 r/min for 30 minutes while the temperature of the water in the water bath was within the temperature range of 60 ± 2°C. Next, the water in the water bath was replaced with 5°C tap water, and the composition in the beaker was cooled to 20°C. Next, remove the saran wrap (registered trademark), add ion-exchanged water so that the mass of the contents is 100 g, stir again at 100 r / min for 30 seconds, and apply the clothing care described in Tables 1 to 4. A composition was obtained. The pH (30° C.) of each clothing care composition was in the range of 4 to 6 as a result of measurement by the pH measurement method described above.

<Evaluation method for clothing care effect>
・Equipment: Handy Tripomaster Type: TL201Ts, Static/Dynamic Friction Measuring Instrument, Trinity Lab Co., Ltd., Liquid Receiving Vat, Surface Contact (contact area 2 cm x 2 cm)
・Measurement conditions: load 100 g, speed 50 mm/sec, measurement distance 70 mm, number of reciprocations 100 times, fabric moisture content 450 to 500% by mass
・ Test cloth (I): cotton knit (brown, purchased from Ogura Sangyo (cotton knit not yet sil))
・ Test cloth (II): synthetic fiber cloth (polyester faille, fiber composition: 100% polyester, Dyeing Materials Co., Ltd.)
・Pretreatment of test cloth 2.0 kg of test cloth (I) or (II) was washed repeatedly 5 times with a commercial detergent (Attack Bio EX, Kao Corporation) (detergent concentration, 1.5 g / L, water volume 40 liters, 6 minutes of washing, 2 rinses with water, 3 minutes of dehydration, washing machine: NA-F70PX9, manufactured by Panasonic Corporation). The washed test fabrics were dried indoors (15-25° C./30-60% RH) for 24 hours.
・Sample solution: A sample solution obtained by mixing a clothing care composition at a concentration of 5 g/L with water having a hardness of 5° DH and an alkalinity of 30 ・Evaluation method 1. The friction range was marked on the test fabric on the receiving vat side.
2. The test cloth on the surface contact side and the test cloth on the liquid receiving vat side were immersed in the sample liquid for 1 minute.
3. While the cloth was wet, the test cloth on the side of the surface contact was fixed to the surface contact, and the test cloth on the side of the liquid receiving vat was placed on the liquid receiving vat.
4. The measurement conditions of the friction measuring instrument were set, and friction between wet cloths was measured.
5. After rinsing the test cloth on the side of the liquid receiving vat after rubbing twice with tap water from Wakayama Prefecture, it was naturally dried.
6. Preparation of reference samples: Using the garment care composition of Comparative Example 1, reference sample 5 with 60 strokes (rating 5), reference sample 4 with 80 strokes (rating 4), reference sample with 100 strokes 3 (evaluation point 3), reference sample 2 (evaluation point 2) that was reciprocated 120 times, and reference sample 1 (evaluation point 1) that was reciprocated 140 times. Regarding the degree of fluffing of the clothing, the evaluation point of 1 for the reference sample 1 was the most fluffing, and the evaluation point 5 of the reference sample 5 was the least fluffing degree.
7. The fluffiness of the test samples treated with the garment care compositions of Examples or Comparative Examples after drying was marked on the basis of reference sample 1 (scoring point 1) to reference sample 5 (scoring point 5). Visual level judgment evaluation was performed in the range. The higher the score, the more excellent the effect of suppressing fluff on the surface of the test cloth.

<Method for measuring friction between wet cloths (measurement of average dynamic friction coefficient)>
・Equipment: TL201Ts, static/dynamic friction measuring instrument, liquid tray, surface contact (contact area 2 cm x 2 cm)
・Measurement conditions: load 100 g, speed 2 mm/sec, measurement distance 50 mm, number of reciprocations 5 times, fabric moisture content 450 to 500% by mass
・Test fabric: cotton knit (brown), purchased from Ogura Sangyo (cotton knit unsilted)
- Pretreatment of test cloth: Performed in the same manner as in the evaluation method for clothing care effects.
・Sample solution: A sample solution obtained by mixing a clothing care composition at a concentration of 5 g/L with water having a hardness of 5° DH and an alkalinity of 30 ・Evaluation method 1. The test cloth on the surface contact side and the test cloth on the liquid receiving vat side were immersed in the sample liquid for 1 minute.
2. While the cloth was wet, the test cloth on the side of the surface contact was fixed to the surface contact, and the test cloth on the side of the liquid receiving vat was placed on the liquid receiving vat.
3. The measurement conditions of the friction measuring instrument were set, and friction between wet cloths was measured.
4. A five-time average value of the coefficient of dynamic friction was calculated.

<Evaluation method for detergency>
[Preparation of model sebum stain]
A model sebum stain (corresponding to A in artificial soil) having the following composition was prepared, and the artificial stain containing the model sebum stain was used to prepare artificially stained cloth and clothing for evaluation.
・Model sebum stain composition:
0.44 parts by weight of lauric acid, 3.15 parts by weight of myristic acid, 2.35 parts by weight of pentadecanoic acid, 6.31 parts by weight of palmitic acid, 0.44 parts by weight of heptadecanoic acid, 1.6 parts by weight of stearic acid, oleic acid 7.91 parts by mass, 13.33 parts by mass of triolein, 2.22 parts by mass of n-hexadecyl palmitate, 6.66 parts by mass of squalene

[Preparation of artificially contaminated cloth]
-Artificial Dirt A composition containing the following A, B, C, D, and E was used as an artificial dirt. Each % by mass is the proportion in the final composition of the artificial soil, and the amount of B was adjusted so that the total was 100% by mass.
A: Model sebum stain (mass% in artificial dirt is lauric acid 0.44% by mass, myristic acid 3.15% by mass, pentadecanoic acid 2.35% by mass, palmimitic acid 6.31% by mass, heptadecanoic acid 0 44% by weight, 1.6% by weight of stearic acid, 7.91% by weight of oleic acid, 13.33% by weight of triolein, 2.22% by weight of n-hexadecyl palmitate, and 6.66% by weight of squalene use)
B: Hard water obtained by weighing 105 mg of dihydrate of calcium chloride and dissolving it in distilled water to make 1,000 ml C: Egg white lecithin liquid crystal 1.98% by mass (Arginine hydrochloride 11.37 g, histidine 4 in 80 ml of distilled water Egg white lecithin liquid crystal obtained by dissolving .20 g and 2.44 g of serine, adjusting the pH to 5.0 with concentrated hydrochloric acid, and thoroughly mixing this solution and egg white lecithin with a mixer) D: Kanuma red soil 8.11 mass%
E: 0.025% by mass of carbon black
The artificially soiled cloth used was a 6 cm x 6 cm cotton/polyester broad blended dyed cloth (cotton/polyester ratio = 35/65, purchased from Tanigashira Shoten), and 100 mg of artificial soil consisting of the above composition per sheet. It is gravure coated.

[Washing conditions]
As model tap water, water obtained by adding a hardness component to ion-exchanged water so as to be 5 DH° (Ca/Mg=7/3, mass ratio) was used. To 0.6 liters of this model tap water was added 0.6 g of the garment care composition of Table 4 and 4 artificially soiled cloths were placed. Washed with a tergotometer under conditions of 100 rpm for 10 minutes.
Detergency was determined by measuring the reflectance at 550 nm of the original cloth before staining and before and after washing with a colorimetric color difference meter (Z-300A manufactured by Nippon Denshoku Co., Ltd.), and the washing rate (%) was obtained by the following formula. . Measurements were taken for each of the four contaminated cloths, and an average value was obtained. A cleaning rate of 30% or more is acceptable, and a higher value is more preferable.
Cleaning rate (%) = 100 x [(reflectance after cleaning-reflectance before cleaning)/(reflectance of raw fabric-reflectance before cleaning)]

The clothing care compositions of the present invention listed in Table 1 were found to reduce the average dynamic coefficient of friction in water and can be used as friction reducer compositions for clothing.
In addition, regarding the anti-fluffing effect of the compositions in Table 1, according to Table 2, which will be described later, compositions with a low average dynamic friction coefficient have less fluff on clothing, so the compositions described in Examples in Table 2 It is believed that the product has a more effective anti-fluffing effect than the composition described in the comparative example.
Further, with regard to the detergency of the compositions in Table 1, according to Table 4 to be described later, the compositions described in Examples 4, 5, 6, 10 and 11 in Table 1 were able to remove dirt adhering to clothes. It is believed that the other compositions listed in Table 1 also have cleaning properties for stains on clothes, as shown to be possible.

The clothing care compositions described in the examples in Table 2 can suppress the fluffing of clothing that occurs when the clothing is washed in water more than the compositions described in the comparative examples. Further, according to Examples 5, 9, and 10, it can be seen that the lower the average dynamic friction coefficient in water, the more the fluff caused by the rubbing of clothes in water can be suppressed. Moreover, according to Examples 10 and 11, the effect of the component (b) is considered to be almost saturated at the compounding amount of Example 11.

Test group I used test cloth (I) composed of cotton fibers, and test group II used test cloth (II) composed of synthetic fibers.
In each test group, when comparing the difference in the average dynamic friction coefficient of clothes in water between the clothes care composition of the comparative example and the clothes care composition of the present invention, the difference in the average dynamic friction coefficient of cotton clothes was larger. , the friction coefficient lowering effect is higher. In addition, the cotton clothing was less fuzzy than the cotton clothing. It can be seen that the clothing care composition of the present invention is more preferably applied to clothing containing cotton fibers, from the standpoint of greater clothing care effects.

The clothing care compositions described in the examples shown in Table 4 have a lower average dynamic friction coefficient when clothing rubs against each other in water than the compositions described in the comparative examples, and are effective in suppressing fluffing of clothing. and shows good detergency. It can be seen that the compositions of the examples can be used as a laundry detergent composition capable of washing stains adhered to clothing while exerting a clothing care effect.
In addition, Example 5 ((b) component 1% by mass, average dynamic friction coefficient 0.987), Example 10 ((b) component 3% by mass, average dynamic friction coefficient 0.953), Example 11 ((b) component 5 mass%, average dynamic friction coefficient 0.931) and Comparative Example 5 ((b) component 0 mass%, average dynamic friction coefficient 1.101), the average per unit mass of component (b) calculated by the following formula The degree of reduction in the coefficient of dynamic friction is as follows. Within a predetermined content range, the smaller the amount of component (b), the greater the degree of reduction in the average coefficient of dynamic friction per unit mass of component (b). It turns out that it is preferable in terms of efficient use of the component (b).
Example 5 ((b) component 1% by mass): 0.114
Example 10 (3% by mass of component (b)): 0.0493
Example 11 (5% by mass of component (b)): 0.0340
(Average coefficient of dynamic friction of Comparative Example 5−Average coefficient of dynamic friction of each example)/% by mass of component (b) in each example

Claims (7)

A clothing care composition containing 7 % by mass or more and 25 % by mass or less of the following component (a), 0.1% by mass or more and 5% by mass or less of the component (b), and water ,
(a) contains an anionic surfactant (a1) [hereinafter referred to as component (a1)] as a component,
component (a1) is one or more anionic surfactants selected from the following components (a1-1), (a1-2), (a1-3), and (a1-4);
In the component (a), the content of the component (a1) is 80% by mass or more,
Garment care composition .
(a) component: surfactant containing ionic surfactant (b) component: hydroxyethyl cellulose
(a1-1) component: alkyl or alkenyl sulfate
(a1-2) component: polyoxyalkylene alkyl or alkenyl ether sulfate salt having an oxyalkylene group having 2 to 3 carbon atoms
(a1-3) component: alkyl or alkenyl benzene sulfonate
(a1-4) component: sulfonate other than component (a1-3) 2. The clothing care composition of claim 1, wherein the clothing care composition has a pH of 2 or more and 10 or less at 30<0>C. 3. The ionic surfactant according to claim 1 or 2, wherein the ionic surfactant is one or more surfactants selected from (a1) anionic surfactants, (a2) cationic surfactants and (a3) amphoteric surfactants. clothing care compositions. Claim that the total amount of one or more anionic surfactants selected from components (a1-1), (a1-2) and (a1-4) in component (a1) is 50% by mass or more. Item 4. The clothing care composition according to any one of items 1 to 3 . 5. Any one of claims 1 to 4 , wherein the content of the cationic surfactant having two or three aliphatic hydrocarbon groups having 12 to 24 carbon atoms in component (a) is 20 % by mass or less. A garment care composition as described. 6. The clothing care composition according to any one of claims 1 to 5 , wherein the content of component (a1-4) in component (a) is 95% by mass or less. A garment care composition according to any one of claims 1 to 6 , wherein the garment is a garment containing cotton fibres.