JP2007191463A - Bathing agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathing agent hardly providing sticky feeling, providing moist feeling, and having high moisture-keeping effects. <P>SOLUTION: The bathing agent contains a component (A) represented by general formula (2) (wherein, R<SP>1</SP>is a 2-20C acyl group; R<SP>2</SP>is hydrogen or a lower alkyl group which may be substituted; Y is a carboxy group, a sulfonic acid group or the like; A is a binding site derived from a functional group of a spacer comprising a carbon chain having ≤1,000,000 molecular weight; and j and k are each 0-2 and both are not simultaneously 0). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bath agent that contains an acyl compound having a specific structure, is less sticky, has a moist feeling, and has a high moisturizing effect.

Conventionally, bath preparations have been used as a part of health maintenance such as relief of various symptoms due to a warm bath effect at the time of bathing, as well as imparting a skin beautifying effect to the skin simultaneously with promoting a cosmetic effect. For example, a lot of humectants are blended in addition to inorganic salts in bath agents, and these humectants can moisturize the skin by retaining moisture, but in some cases also give a feeling of stickiness. End up.
For example, Patent Document 1 discloses a bath agent having a low moisturizing effect and a low moisturizing effect obtained by blending a specific plant extract as a moisturizing agent. In the above embodiment, the yucca extract is used, but the improvement effect for the above problems is not yet sufficient.

JP-A-11-147818

  An object of the present invention is to provide a bath agent that contains an acyl compound having a specific structure, is less sticky, has a moist feeling, and has a high moisturizing effect.

Conventionally, it has been common knowledge that anionic amphiphiles are strongly irritating to the skin, and as a bath preparation, no application has been made to anything other than a type that appeals to foaming.
In addition, many of the components used as moisturizers did not deserve the satisfaction of the user, such as a sticky feeling remaining after use, or a sufficient moisturizing feeling was not obtained.
However, the present inventors pay attention to the fact that the specific anionic compound, that is, the compound (acyl compound) represented by the general formula (1) has very little irritation to the skin, and intensively studied to solve the above-mentioned problem. As a result, it was found that by using the acyl compound as a bath preparation, the stickiness is less and the moisturizing effect is high, and the present invention has been completed.
That is, the present invention is as follows.
1. The bath agent characterized by mix | blending the following component (A).
Component (A): one or more compounds represented by the following general formula (1)

（上記一般式（１）において、Ｘはｍ個の官能基、およびそれ以外の置換基を有していてもよい分子量１００万以下の直鎖または分枝鎖または環状鎖または芳香族炭化水素鎖であるスペーサーを示す。Ｘに結合しているｎ（ｍ≧ｎ）個のＱは、下記一般式（２）で表される置換基であり、それぞれ互いに同一でも異なっていてもよい。下記一般式（２）において、ＺはＸの有する官能基に由来する結合部であり、Ｒ^１ＣＯは炭素原子数２〜２０の飽和または不飽和の脂肪酸から誘導されるアシル基を示し、Ｒ^２は水素であるか、またはヒドロキシル基またはカルボキシル基が置換していてもよい炭素原子数１〜３の低級アル
キル基を示し、Ｙはカルボキシル基、スルホン酸基、硫酸エステル基、リン酸エステル基またはそれらの塩の内のいずれかを示す。ｊ、ｋはそれぞれ独立に０，１，２のいずれかであり、かつｊ、ｋは同時に０ではない。ｎは２〜２０の整数を示す。また、ｍはｍ≧ｎである整数を示す。）

(In the above general formula (1), X is a linear, branched, cyclic or aromatic hydrocarbon chain having a molecular weight of 1,000,000 or less, which may have m functional groups and other substituents. The n (m ≧ n) Qs bonded to X are substituents represented by the following general formula (2), which may be the same as or different from each other. In formula (2), Z is a bond derived from a functional group of X, R ¹ CO represents an acyl group derived from a saturated or unsaturated fatty acid having 2 to 20 carbon atoms, and R ² is A lower alkyl group having 1 to 3 carbon atoms which is hydrogen, or a hydroxyl group or a carboxyl group may be substituted, and Y is a carboxyl group, a sulfonic acid group, a sulfate ester group, a phosphate ester group or the like The salt inside of J and k are each independently 0, 1, or 2 and j and k are not 0 at the same time, n is an integer of 2 to 20, and m is m ≧ n. Indicates an integer.)

２．成分（Ａ）アシル化合物の少なくとも１種が上記一般式（１）に示す化合物であって、上記一般式（１）において、Ｘは前記官能基以外の置換基を有していてもよい炭素数１〜４０の直鎖または分枝鎖または環状鎖または芳香族炭化水素鎖であるスペーサーであることを特徴とする請求項１に記載の浴用剤、
３．さらに、成分（Ｂ）：保湿剤の１種以上を含有することを特徴とする請求項１または２に記載の浴用剤、
４．さらに、成分（Ｃ）：油性成分の１種以上を含有することを特徴とする請求項１〜３のいずれかに記載の浴用剤、

2. Component (A) At least one of the acyl compounds is a compound represented by the general formula (1), and in the general formula (1), X may have a substituent other than the functional group. The bath agent according to claim 1, which is a spacer which is a linear or branched chain or cyclic chain or an aromatic hydrocarbon chain of 1 to 40,
3. Furthermore, it contains 1 or more types of component (B): a moisturizer, The bath agent of Claim 1 or 2 characterized by the above-mentioned.
4). Furthermore, it contains 1 or more types of component (C): oil component, The bath agent in any one of Claims 1-3 characterized by the above-mentioned.

5). The bath agent according to any one of claims 1 to 4, wherein the total amount of the component (A) is 0.001 to 50% by mass among the components excluding water in the bath agent.
6). The total amount of the component (A) is 0.001 to 50% by mass and the total amount of the component (B) is 0.1 to 30% by mass among the components excluding water in the bath preparation. Or the bath preparation according to 4,
7). Among the components excluding water in the bath preparation, the total amount of component (A) is 0.001 to 50% by mass, the total amount of component (B) is 0.1 to 30% by mass, and the total amount of component (C) is 0.00. The bath agent according to any one of claims 1 to 4, wherein the amount is 01 to 15% by mass.

  INDUSTRIAL APPLICABILITY The present invention has an effect of providing a bath agent having little stickiness and moist feeling and having a high moisturizing effect.

Hereinafter, the present invention will be specifically described.
Structurally, the bath agent of the present invention has a structure in which a compound having at least one acyl group and a hydrophilic group in the molecule is connected by an appropriate spacer as shown in the above general formulas (1) and (2). This structure may be used as long as it has this structure, and may be a compound that has been known so far. Here, examples of the hydrophilic group independently include a carboxyl group, a sulfonic acid group, a sulfuric acid residue, a phosphoric acid residue, or a salt thereof.

In the general formula (2), the acyl group represented by R ¹ CO is an acyl group derived from a saturated or unsaturated fatty acid having 2 to 20 carbon atoms, and each acyl group is independently selected. That is, they may be different or the same, and are preferably derived from a saturated or unsaturated fatty acid having 2 to 20 carbon atoms, regardless of whether it is linear, branched or cyclic.
For example, acetic acid, propionic acid, butyric acid, pentanoic acid, hexanoic acid, heptanoic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid , Linear fatty acids such as nonadecanoic acid, arachidic acid;

  2-butyl-5-methylpentanoic acid, 2-isobutyl-5-methylpentanoic acid, dimethyloctanoic acid, dimethylnonanoic acid, 2-butyl-5-methylhexanoic acid, methylundecanoic acid, dimethyldecanoic acid, 2-ethyl- 3-methylnonanoic acid, 2,2-dimethyl-4-ethyloctanoic acid, methyldocosanoic acid, 2-propyl-3-methylnonanoic acid, methyltridecanoic acid, dimethyldodecanoic acid, 2-butyl-3-methylnonanoic acid, methyltetradecanoic acid , Ethyltridecanoic acid, propyldodecanoic acid, butylundecanoic acid, pentyldecanoic acid, hexylnonanoic acid, 2- (3-methylbutyl) -3-methylnonanoic acid, 2- (2-methylbutyl) -3-methylnonanoic acid, butylethylnonane Acid, methylpentadecanoic acid, ethyltetradecanoic acid, propyltri Canic acid, butyldodecanoic acid, pentylundecanoic acid, hexyldecanoic acid, heptylnonanoic acid, dimethyltetradecanoic acid, butylpentylheptanoic acid, trimethyltridecanoic acid, methylhexadecanoic acid, ethylpentadecanoic acid, propyltetradecanoic acid, butyltridecanoic acid, pentyldodecane Acid, hexylundecanoic acid, heptyldecanoic acid, methylheptylnonanoic acid, dipentylheptanoic acid, methylheptadecanoic acid, ethylhexadecanoic acid, ethylhexadecanoic acid, propylpentadecanoic acid, butyltetradecanoic acid, pentyltridecanoic acid, hexyldodecanoic acid, heptyl Undecanoic acid, octyldecanoic acid, dimethylhexadecanoic acid, methyloctylnonanoic acid, methyloctadecanoic acid, ethylheptadecanoic acid, dimethylheptadecanoic acid, Octyl decanoic acid, Mechirunonadekan acid, Mechirunonadekan acid, dimethyl octadecanoic acid, branched fatty acids such as butyl heptyl nonanoic acid;

Octenoic acid, nonenoic acid, decenoic acid, caproleic acid, undecylenic acid, Lindelic acid, touric acid, lauroleic acid, tridecenoic acid, tuzuic acid, myristoleic acid, pentadecenoic acid, hexedenoic acid, palmitoleic acid, heptadecenoic acid, octadecenoic acid, Linear monoenoic acids such as oleic acid, nonadecenoic acid, gondoic acid;
Such as methylheptenoic acid, methylnonenoic acid, methylundecenoic acid, dimethyldecenoic acid, methyldodecenoic acid, methyltridecenoic acid, dimethyldodecenoic acid, dimethyltridecenoic acid, methyloctadecenoic acid, dimethylheptadecenoic acid, ethyloctadecenoic acid Branched monoenoic acid;
Di- or trienoic acids such as linoleic acid, linoleic acid, eleostearic acid, linolenic acid, linolenic elaidic acid, pseudoeleostearic acid, parinaric acid, arachidonic acid;

Acetylene acids such as octinoic acid, nonionic acid, decinic acid, undecinic acid, dodecinic acid, tridecic acid, tetradecic acid, pentadecinic acid, heptadesinic acid, octadecinic acid, nonadesinic acid, dimethyloctadesinic acid;
Of methyleneoctadecenoic acid, methyleneoctadecanoic acid, aleprolic acid, alepresinic acid, allepuric acid, alepuric acid, hydnocarpic acid, shoulmuccinic acid, gorulic acid, α-cyclopentylic acid, α-cyclohexylic acid, α-cyclopentylethylic acid And acyl groups derived from such cyclic acids.
Moreover, the acyl group derived from the fatty acid obtained from natural fats and oils may be sufficient, and the acyl group derived from the mixed fatty acid containing 80% or more of the saturated or unsaturated fatty acid having 2 to 20 carbon atoms is preferable. For example, acyl groups derived from coconut oil fatty acid, palm oil fatty acid, linseed oil fatty acid, sunflower oil fatty acid, soybean oil fatty acid, sesame oil fatty acid, castor oil fatty acid, olive oil fatty acid, camellia oil fatty acid, rapeseed oil fatty acid, palm kernel oil fatty acid, etc. Etc. Two or more of these acyl compounds may be used in combination.

In the general formula (2), the acyl group represented by R ¹ CO is preferably derived from a saturated or unsaturated fatty acid having 8 to 20 carbon atoms.
When the acyl compound is used as a salt, examples thereof include alkali metal salts, alkaline earth metal salts, ammonium salts, organic amine salts, basic amino acid salts, and the like. Specifically, alkalis such as sodium, potassium, and lithium are used. Arbitrary metals such as metals, alkaline earth metals such as calcium and magnesium, metals such as aluminum and zinc, organic amines such as ammonia, monoethanolamine, diethanolamine, triethanolamine and triisopropanolamine, and basic amino acids such as arginine and lysine It is a salt with 1 type, or 2 or more types chosen by these. Among these, sodium salts, potassium salts, organic amine salts, and basic amino acid salts are particularly preferable.

In the general formula (2), R ² is hydrogen, or the number of carbon atoms that may be substituted by a hydroxyl group or a carboxyl group, a sulfonic acid group, a sulfate ester group, a phosphate ester group, or a salt thereof. 1 to 3 lower alkyl groups, for example, methyl group, ethyl group, propyl group, isopropyl group, hydroxymethyl group, hydroxyethyl group, hydroxy (iso) propyl group, dihydroxy (iso) propyl group, carboxymethyl group, A carboxyethyl group, a carboxypropyl group, a sulfoethyl group, etc. are mentioned.
In the general formula (1), n substituents Q bonded to X (the above general formula (2)) may be different from each other or the same. Moreover, the said General formula (2) shows what the so-called acidic amino acid was N-acylated, and it does not ask | require whether they are optical isomers, for example, D-form, L-form, and a racemate.

The acidic amino acid is a monoaminodicarboxylic acid having 2 and 1 carboxyl groups and 1 amino group, respectively, in the molecule, and the amino group may be an N-methyl group or an N-ethyl group. It does not matter whether it is an optical isomer, for example, a D-form, an L-form, or a racemate. Examples of acidic amino acids include glutamic acid, aspartic acid, lanthionine, β-methyllanthionine, cystathionine, diencholic acid, ferrinin, aminomalonic acid, β-oxyaspartic acid, α-amino-α-methylsuccinic acid, β-oxyglutamic acid. , Γ-oxyglutamic acid, γ-methylglutamic acid, γ-methyleneglutamic acid, γ-methyl-γ-oxyglutamic acid, α-aminoadipic acid, α-amino-γ-oxyadipic acid, α-aminopimelic acid, α-amino- Examples thereof include γ-oxypimelic acid, β-aminopimelic acid, α-aminosuberic acid, α-aminosebacic acid, pantothenic acid and the like.
The n substituents (the above general formula (2)) attached to X are preferable because the acidic amino acid is an L-acidic amino acid molecule because it is excellent in biodegradability.

In the above general formula (2), Z represents a bonding portion (-) derived from m functional groups (hydroxyl group, amino group, thiol group) substituted with X (m ≧ n and an integer of 2 to 20). ^{O -, - NR 3 -,} - it is S-). Here, R ³ is hydrogen, or an alkyl group, alkenyl group, aryl group or alkylaryl group having 1 to 10 carbon atoms.
In the general formula (1), X is a linear, branched or cyclic chain having a molecular weight of 1 million or less and having m functional groups consisting of one or more selected from a hydroxyl group, an amino group and a thiol group. Or it is a spacer which is an aromatic hydrocarbon chain | strand, and X may have substituents other than the said hydroxyl group, an amino group, and a thiol group.

In the general formula (1), X is preferably a residue of an m-valent compound having a molecular weight of 1 million or less and having m functional groups of one kind or two or more kinds selected from a hydroxyl group, an amino group and a thiol group. And a compound residue that may have a substituent other than a hydroxyl group, an amino group, and a thiol group. Here, the m-valent compound means that a bond derived from m functional groups can be formed. It does not matter whether they are optical isomers such as D-form, L-form, and racemate.
Examples of such m-valent compounds include amino acids such as serine, threonine, cysteine, cystine, cystine disulfoxide, cystathionine, methionine, arginine, lysine, tyrosine, histidine, tryptophan, and oxyproline;

Aminoethanol, aminopropanol, aminobutanol, aminopentanol, aminohexanol, aminopropanediol, aminoethylethanolamine, aminoethylaminoethanol, aminocresol, aminonaphthol, aminonaphtholsulfonic acid, aminohydroxybenzoic acid, aminohydroxybutanoic acid Compounds having an amino group and a hydroxyl group in the molecule such as aminophenol, aminophenethyl alcohol, glucosamine;
Compounds having a thiol group and a hydroxyl group in the molecule such as mercaptoethanol, mercaptophenol, mercaptopropanediol, glucothiose;
Compounds having a thiol group and an amino group in the molecule such as aminothiophenol and aminotriazole thiol;
Is mentioned. Further, proteins, peptides, etc., or those obtained by hydrolyzing them may be used.

In the general formula (1), X is preferably an m-valent (m ≧ n) polyhydroxyl compound residue having a molecular weight of 1,000,000 or less, which may have a substituent other than a hydroxyl group. Here, the m-valent polyhydroxyl compound means that m ester bonds can be formed. It does not matter whether they are optical isomers such as D-form, L-form, and racemate.
Examples of such m-valent polyhydroxyl compounds include ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, and 1,4-butanediol. , Pentanediol, 1,6-hexanediol, cyclohexanediol, dimethylolcyclohexane, neopentyl glycol, 1,8-octanediol,

2,2,4-trimethyl-1,3-pentanediol, isoprene glycol, 3-methyl-1,5-pentanediol, sorbite, catechol, resorcin, hydroquinone, bisphenol A, bisphenol F, hydrogenated bisphenol A, hydrogenated Bisphenol F,
Dimerdiol, dimethylolpropionic acid, dimethylolbutanoic acid, tartaric acid, dihydroxytartaric acid, mevalonic acid, 3,4-dihydroxycinnamic acid, 3,4-dihydroxyhydrocinnamic acid, hydroxybenzoic acid, dihydroxystearic acid, dihydroxyphenylalanine And divalent hydroxyl compounds such as each of these isomers;
Glycerin, trioxyisobutane, 1,2,3-butanetriol, 1,2,3-pentanetriol, 2-methyl-1,2,3-propanetriol, 2-methyl-2,3,4-butanetriol, 2-ethyl-1,2,3-butanetriol, 2,3,4-pentanetriol,

2,3,4-hexanetriol, 4-propyl-3,4,5-heptanetriol, 2,4-dimethyl-2,3,4-pentanetriol, 1,2,4-butanetriol, 1,2, Trivalent polyhydroxyl compounds such as 4-pentanetriol, trimethylolethane, trimethylolpropane, diethanolamine, triethanolamine, trihydroxystearic acid;
Pentaerythritol, erythritol, 1,2,3,4-pentanetetrol, 2,3,4,5-hexanetetrol, 1,2,4,5-pentanetetrol, 1,3,4,5-hexane Tetravalent polyhydroxyl compounds such as tetrol, diglycerin and sorbitan;
Pentavalent polyhydroxyl compounds such as adonitol, arabitol, xylitol, triglycerin;
Hexavalent polyhydroxyl compounds such as dipentaerythritol, sorbitol, mannitol, iditol, inositol, dulcitol, talose, allose;
Or these dehydration condensates, polyglycerol, etc. are mentioned.

Sugars such as tetroses such as erythrose, sreose, erythrulose;
Pentose such as ribose, arabinose, xylose, lyxose, xylulose, ribulose; monosaccharides such as hexose such as allose, altrose, glucose, mannose, guylose, idose, galactose, talose, fructose, sorbose, psicose, tagatose;
Examples thereof include oligosaccharides such as maltose, isomaltose, cellobiose, gentiobiose, melibiose, lactose, turanose, trehalose, saccharose, mannitolose, cellotriose, gentianose, raffinose, meletitose, cellotetorose, stachyose and the like.

In addition, other saccharides such as heptose, deoxy sugar, amino sugar, thio sugar, seleno sugar, aldone sugar, uronic acid, sugar acid, ketoaldonic acid, anhydro sugar, unsaturated sugar, sugar ester, sugar ether, glycoside, etc. It may be a group, and may be a polysaccharide such as starch, glycogen, cellulose, chitin, chitosan or the like, or a hydrolyzed product thereof.
In the general formula (1), X is preferably an m-valent polyamino compound residue having a molecular weight of 1,000,000 or less, which may have a substituent other than an amino group. Here, the m-valent polyamino compound means that m acid amide bonds can be formed. It does not matter whether they are optical isomers such as D-form, L-form, and racemate.

Examples of such m-valent polyamino compounds include N, N′-dimethylhydrazine, ethylenediamine, N, N′-dimethylethylenediamine, diaminopropane, diaminobutane, diaminopentane, diaminohexane, diaminoheptane, diaminooctane, diaminononane, Aliphatic diamines such as diaminodecane, diaminododecane, diaminoadipic acid, diaminopropanoic acid, diaminobutanoic acid and their isomers;
Diethylenetriamine, triaminohexane, triaminododecane, 1,8-diamino-4-aminomethyl-octane, 2,6-diaminocapric acid-2-aminoethyl ester, 1,3,6-triaminohexane, 1,6 , 11-triaminoundecane, aliphatic triamines such as di (aminoethyl) amine and isomers thereof;

Alicyclic polyamines such as diaminocyclobutane, diaminocyclohexane, 3-aminomethyl-3,5,5-trimethylcyclohexylamine, triaminocyclohexane;
Aromatic polyamines such as diaminobenzene, diaminotoluene, diaminobenzoic acid, diaminoanthraquinone, diaminobenzenesulfonic acid, diaminobenzoic acid, and their respective isomers;
Araliphatic polyamines such as diaminoxylene, di (aminomethyl) benzene, di (aminomethyl) pyridine, di (aminomethyl) naphthalene, and their isomers;
And polyamines substituted with hydroxyl groups such as diaminohydroxypropane and isomers thereof.

In the general formula (1), X is preferably an m-valent polythiol compound residue having a molecular weight of 1,000,000 or less, which may have a substituent other than a thiol group. Here, the m-valent polythiol compound means that m thioester bonds can be formed. It does not matter whether they are optical isomers such as D-form, L-form, and racemate.
Examples of such m-valent polythiol compounds include dithiol compounds such as dithioethylene glycol, dithioerythritol, and dithiothreitol.
X is preferably a group having 1 to 40 carbon atoms among the residues of the compounds listed above, and more preferably X has 1 to 20 carbon atoms. X is preferably a naturally occurring type from the viewpoint of excellent biodegradability.

In the general formula (2), a carboxyl group represented by Y, a sulfonic acid group, a sulfate ester group,
The phosphoric acid ester group and the carboxyl group, sulfonic acid group, sulfuric acid ester group, phosphoric acid ester group and the like which can be contained in X can form salts with various basic substances.
Examples of such salts include alkali metal salts, alkaline earth metal salts, ammonium salts, organic amine salts, basic amino acid salts, polyvalent metal salts, and the like, specifically, alkalis such as sodium, potassium, and lithium. Metals, alkaline earth metals such as calcium and magnesium, metals such as aluminum, zinc, iron, cobalt, titanium and zirconium, organic amines such as ammonia, monoethanolamine, diethanolamine, triethanolamine and triisopropanolamine, arginine and lysine Or a salt with one or more kinds selected arbitrarily from basic amino acids and the like.

  The method for producing the acyl compound represented by the general formula (1) is selected from an N-acyl acidic amino acid anhydride represented by the following general formula (3) and a hydroxyl group, an amino group, and a thiol group in the molecule. By reacting the compound having one or more kinds of m functional groups in water and / or a mixed solvent of water and an organic solvent, or tetrahydrofuran, benzene, toluene, xylene, carbon tetrachloride It can be obtained by reacting by using an inert solvent such as chloroform, acetone, etc., or by mixing at −5 ° C. to 200 ° C. at a temperature not lower than any melting point without solvent.

または上記一般式（１）で示されるアシル化合物は、Ｎ−アシル酸性アミノ酸モノ低級エステル（例えば、メチルエステル、エチルエステル）とポリヒドロキシル化合物またはポリアミノ化合物またはポリチオール化合物、または分子内にヒドロキシル基、アミノ基、チオール基のうちいずれか２種または３種を有する化合物とをジメチルホルムアミド等の適当な溶媒中に溶解し、炭酸カリウム等の触媒を加え、減圧下に−５℃〜２５０℃で加熱反応させた後反応溶媒を除去することで得ることができる。あるいは、無溶媒で加熱溶融し、水酸化ナトリウム等の触媒を加えて室温〜２５０℃でエステル交換反応させてアシル化合物を得ることができる。

Alternatively, the acyl compound represented by the general formula (1) includes an N-acyl acidic amino acid mono-lower ester (for example, methyl ester, ethyl ester) and a polyhydroxyl compound, a polyamino compound, or a polythiol compound, or a hydroxyl group, amino group in the molecule. A compound having any two or three of a group and a thiol group is dissolved in a suitable solvent such as dimethylformamide, a catalyst such as potassium carbonate is added, and the reaction is heated at -5 ° C to 250 ° C under reduced pressure. It can be obtained by removing the reaction solvent. Alternatively, the acyl compound can be obtained by melting with heating without a solvent, adding a catalyst such as sodium hydroxide, and performing a transesterification reaction at room temperature to 250 ° C.

The content of the component (A) acyl compound in the bath agent of the present invention (excluding water) is preferably 0.001 to 50% by mass in the bath agent and can be adjusted according to the purpose. More preferably, it is 0.1-10 mass%. More preferably, it is 0.1-3 mass%.
Examples of the moisturizing component (B) blended in the bath preparation of the present invention include the polyhydroxyl compounds having two or more hydroxyl groups in the molecule, hyaluronic acid (sodium), chondroitin sulfate (sodium), dermatan sulfate, etc. Mucopolysaccharides (salts), (water-soluble) collagen, elastin, pyrrolidone carboxylic acid, trimethylglycine, lactates, ceramides, aloe, arnica, nettle, iris, euglena, hypericum, chamomile, salvia, birch, cedar, Atlantic Examples include hawthorn, Achillea millefolium, thyme, carrots, hamamelis, pansies, daisies, lavender, rosemary, lemon, eucalyptus, soybeans and other plant extract extracts, bifidobacteria and other fermented extracts. The blending amount of these (B) moisturizing components in the bath preparation of the present invention (excluding water) is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass. It is. More preferably, a higher effect can be obtained by using a mixture of two or more moisturizing components.

The oil component of the component (C) to be blended in a preferred embodiment of the present invention can be used in any of solid, semi-solid, and liquid properties, and is a hydrocarbon, fat, fatty acid, higher saturated alcohol, synthetic ester, vitamin E and derivatives thereof, silicones and the like may be mentioned, and oily components commonly used as components for cosmetics and external medicines may be used.
For example, avocado oil, turtle oil, corn oil, almond oil, olive oil, cacao oil, sesame oil, safflower oil, soybean oil, camellia oil, persic oil, castor oil, vine seed oil, macadamia nut oil, mink oil, cottonseed oil, molasses, Palm oil, egg yolk oil, palm oil, palm kernel oil, glyceryl triisooctanoate, glyceryl tri-2-ethylhexanoate, wheat germ oil, sasanqua oil, flaxseed oil, evening primrose oil, eno oil, peanut oil, tea seed Oil, kaya oil, rice bran oil, cinnagyl oil, Japanese kiri oil, jojoba oil, germ oil, trioctanoic acid glycerin, triisopalmitic acid glycerin, horse oil, hardened palm oil, beef tallow, cow leg fat, sheep fat, hardened beef tallow Fats such as pork fat, beef bone fat, owl kernel oil, hydrogenated oil, molasses, hydrogenated castor oil;

Hydrocarbons such as liquid paraffin, petrolatum, ceresin, microcrystalline wax, isoparaffin, ozokerite, squalene, pristane, squalane;
Beeswax, whale wax, lanolin, carnauba wax, candelilla wax, cotton wax, bayberry wax, ibotarou, montan wax, nukarou, lanolin, cabbage wax, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid isopropyl, lauryl hexyl, reduced lanolin, jojoba wax Waxes such as hard lanolin, shellac wax, polyoxyethylene lanolin alcohol ether, polyoxyethylene lanolin alcohol acetate, lanolin fatty acid polyethylene glycol, polyoxyethylene hydrogenated lanolin alcohol ether and derivatives thereof;

Lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, behenic acid, undecylenic acid, lanolin fatty acid, hard lanolin fatty acid, soft lanolin fatty acid, linoleic acid, linolenic acid, eicosapentaenoic acid, 12-hydroxystearic acid Higher fatty acids such as;
Higher alcohols such as lauryl alcohol, cetanol, cetostearyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, hexyldecanol, octyldodecanol;

Isopropyl myristate, butyl stearate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, stearic acid Isocetyl, isocetyl isostearate, cholesteryl 12-hydroxystearylate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, monoisostearate N-alkyl glycol, neopentyl glycol dicaprate, diisostearyl malate, di- 2-glyceryl 2-heptylundecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate Bread, pentaerythritol tetra-2-ethylhexylate, glycerol tri-2-ethylhexylate, trimethylolpropane triisostearate, cetyl-2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, tri-2- Heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleic oil, cetostearyl alcohol, acetoglyceride, palmitate-2-heptylundecyl, adipic acid diisopropyl, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, adipine Di-2-heptyl undecyl acid, ethyl laurate, di-2-ethylhexyl sepatate, 2-hexyl decyl myristate, 2-hexyl decyl palmitate, adipine 2-hexyl decyl, Sebachiru acid diisopropyl succinate 2-ethylhexyl, ethyl acetate, butyl acetate, amyl acetate, ester oils such as triethyl citrate;

Metal soap, dimethylpolysiloxane, polyether-modified silicone, alcohol-modified silicone, methylphenylpolysiloxane, epoxy-modified silicone, fluorine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, amino-modified silicone, volatile silicone and other silicones Volatile and non-volatile oils;
Etc. Two or more of these oil components may be used in combination. In the bath agent of the present invention (excluding water), the blending amount of the (C) oil component is preferably 0.01 to 15% by mass and can be adjusted according to the purpose.
The bath agent referred to in the present invention is also referred to as a bath agent, and is used by putting it in a bathtub when taking a bath.Cleaning of the skin, prevention of skin rash, eczema and other skin diseases, recovery of coldness and fatigue due to thermal effects, Alternatively, it is used for psychological softening, exhilarating, relieving stress and producing a gorgeous feeling. Although there is no restriction | limiting in particular about the quantity applied, It is preferable from the point of a user's convenience to design so that 10-100g may be used with respect to about 200 liters of warm water.

  The pH of the bath agent of the present invention can be used in a wide pH range of preferably 3 to 12, more preferably 4 to 11 when the composition is put into a bathtub. More preferably, it can be used at pH 4-7. The pH adjustment can be adjusted by adjusting the neutralization degree of the acyl compound with a basic substance, or hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, citric acid, tartaric acid, acetic acid, malic acid, maleic acid, etc. Using acidic substances and their salts, or using basic substances such as sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, ammonia (water), arginine, lysine Can be adjusted. It is also preferable to use a buffer system such as citric acid-citrate, phosphoric acid-phosphate, tartaric acid-tartrate.

Moreover, in the bath agent of this invention, unless the objective of this invention is impaired, it can use together with various base materials according to a use and the objective.
Specifically, natural rubbers such as gum arabic and tragacanth, glucosides such as saponin, cellulose derivatives such as methylcellulose, carboxycellulose, and hydroxymethylcellulose, natural polymers such as lignin sulfonate and shellac, polyacrylates, Styrene-acrylic acid copolymer salt, vinyl naphthalene-maleic acid copolymer salt, β-naphthalene sulfonic acid formalin condensate sodium salt, anionic polymer such as phosphate, polyvinyl alcohol, polyvinyl pyrrolidone, Dispersants such as nonionic polymers such as polyethylene glycol;

Higher fatty acid salt (soap); salt of higher fatty acid having 8 to 20 carbon atoms in the hydrophobic base,
N-acyl amino acid type anionic surfactant; examples of the acyl group include those having 8 to 20 carbon atoms as described above, and examples of the constituent amino acids include the above-mentioned acidic amino acids such as glutamic acid and aspartic acid, or Glycine, alanine, valine, leucine, isoleucine, proline, methionine, cysteine, tryptophan, tyrosine, phenylalanine, asparagine, glutamine, serine, threonine, oxyproline, β-aminopropionic acid, γ-aminobutyric acid, anthranilic acid, m-amino Amino acids such as benzoic acid, p-aminobenzoic acid, etc .; alkyl ether carboxylates, amide ether carboxylates, etc., alkyl sulfate esters (AS), polyoxyethylene alkyl ether sulfates (AES), alkyl ether sulfates Acid salt, sulfate of higher fatty acid ester, sulfate of higher fatty acid alkylolamide, sulfated oil, polyoxyethylene styrenated phenyl ether sulfate, alpha-olefin sulfonate (AOS), alkylbenzene sulfonate, alkylnaphthalene Sulfonates, alkyl sulfonates (SAS), dialkyl sulfosuccinates, alpha-sulfonated fatty acid salts, alkane sulfonates, sulfonates of higher fatty acid esters, alpha-sulfonated fatty acid salts, sulfonates of higher fatty acid amides, N-acyl-N-alkyl taurate, N-acyl-N-methyl taurate, alkyl phosphate, alkyl ether phosphate, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl phenyl ether phosphate, Naphtha Anionic surfactants such as Nsurufon formalin condensate;

Amphoteric surfactants such as alkylbetaines, alkylamidobetaines, alkylsulfobetaines, imidazolinium betaines, lecithins;
Polyoxyethylene alkyl ether (AE), polyoxyethylene alkyl phenyl ether, polyoxyethylene polystyryl phenyl ether, polyoxyethylene polyoxypropylene glycol, polyoxyethylene polyoxypropylene alkyl ether, polyoxyalkylene fatty acid ester, polyoxyalkylene Sorbitan fatty acid ester, polyoxyalkylene fatty acid alkanolamide, polyoxyalkylene alkyl glucoside, polyoxyalkylene hydrogenated castor oil, polyoxyalkylene alkyl amine, polyoxyalkylene alkyl phenyl ether, and other ethylene oxide condensation types,

Polyhydric alcohol fatty acid partial ester, polyoxyethylene polyhydric alcohol fatty acid partial ester, polyoxyethylene fatty acid ester, (poly) glycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkylamine, triethanolamine fatty acid partial ester, alkyl Nonionic surfactants such as polyglucoside, propylene glycol fatty acid ester, sorbitan fatty acid ester, polyhydric alcohol ester such as sho, fatty acid ester; fatty acid alkanolamide, sugar amine acylated product, triethanolamine fatty acid partial ester, fatty acid alkylolamide , Alkylamine oxide,
Etc.

Primary to tertiary fatty amine salts, alkylammonium chloride salts, tetraalkylammonium salts, trialkylbenzylammonium salts, alkylpyridinium salts, alkylhydroxyethylimidazolinium salts, dialkylmorpholinium salts, alkylisoquinolium salts, Cationic surfactants such as benzethonium salts and benzalkonium salts;
Polymeric surfactants such as sodium alginate, starch derivatives, tragacanth gum;
Natural surfactants such as phospholipids, lecithin, lanolin, cholesterol, saponins;
Hydroxyethylcellulose, carboxymethylcellulose, hydroxyethylcellulose hydroxypropyltrimethylammonium chloride ether, methylcellulose, ethylcellulose, hydroxypropylcellulose, methylhydroxypropylcellulose, soluble starch, carboxymethylstarch, methylstarch,

Propylene glycol alginate, polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl methyl ether, carboxyvinyl polymer, polyacrylate, guar gum, locust bin gum, quince seed, carrageenan, galactan,
Gum arabic, pectin, mannan, starch, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, casein, albumin, collagen, methoxyethylene maleic anhydride copolymer, amphoteric methacrylate copolymer, polychlorinated Water-soluble and oil-soluble polymers such as dimethylmethylene piperidinium, polyacrylate copolymer, polyvinyl acetate, nitrocellulose, silicone resin;

Cationized cellulose derivative, cationic starch, cationized guar gum derivative, diallyl quaternary ammonium salt / acrylamide copolymer, quaternized polyvinylpyrrolidone derivative, quaternized vinylpyrrolidone / vinylimidazole polymer, polyglycol / amine condensate, Cationic polymers such as quaternized collagen polypeptide, polyethyleneimine, cationic silicone polymer, adipic acid / dimethylaminohydroxypropyldiethylenetriamine copolymer, polyaminopolyamide, cationic chitin derivative, quaternized polymer;
Thickening and foam increasing components such as polyethylene glycol fatty acid ester, polyoxyethylene fatty acid ester methyl glycoside, tetradecene sulfonate;

Sequestering agents such as ethylenediaminetetraacetic acid and its salts, hydroxyethylenediaminetriacetic acid and its salts, phosphoric acid, ascorbic acid, succinic acid, gluconic acid, polyphosphates, metaphosphates, hinokitiles;
Preservatives such as paraoxybenzoates, benzoic acid and its salts, hinokitile;
PH adjusters such as citric acid, malic acid, adipic acid, glutamic acid, aspartic acid;
Other anti-dandruff and itching agents such as trichlorocarbanilide, salicylic acid, zinc pyrithione, isopropylmethylphenol;
Benzophenone derivatives, paraaminobenzoic acid derivatives, paramethoxycinnamic acid derivatives, salicylic acid derivatives and other UV absorbers;

  Ascorbic acid and its salts (sodium salt, potassium salt, magnesium salt, alkali metal salt such as calcium salt, alkaline earth metal salt, ammonium salt, amino acid salt, etc.), ascorbic acid derivative (L-ascorbic acid alkyl ester) L-ascorbic acid phosphate and salts thereof, L-ascorbic acid-2-sulfate and salts thereof, L-ascorbic acid glucoside and the like, alkoxysalicylic acid and salts thereof (alkoxy groups include, for example, methoxy group and ethoxy group) , Propoxy group, isopropoxy group, butoxy group, isobutoxy group, etc.), hydroquinone glycosides and derivatives thereof (arbutin, etc.), kojic acid and its derivatives, ellagic acid, chamomile extract, altea extract, licorice extract, sucha akuhi extract, raspberry extract Apple flavonoid, bran extract, vitamin E and its derivatives, hinokitiol, placenta extract, lucinol, chamomile ET, glutathione, clove extract, tea extract, astaxanthin, cow placenta extract, tranexamic acid and its derivatives, derivatives of resorcin, azulene, γ- Whitening agents such as hydroxybutyric acid;

Blood circulation promoters such as assembly extract, cephalanthin, vitamin E and its derivatives, gamma oryzanol;
Local stimulants such as pepper tincture, ginger tincture, cantharis tincture, nicotinic acid benzyl ester;
Nutrients such as various vitamins and amino acids;
Female hormone agent;
Hair root activator;
Anti-inflammatory agents such as glycyrrhetinic acid, glycyrrhizic acid derivatives, allantoin, azulene, aminocaproic acid, hydrocortisone;

Astringents such as zinc oxide, zinc sulfate, allantoin hydroxyaluminum, aluminum chloride, aluminum sulfate, zinc sulfocolate, tannic acid, citric acid, lactic acid;
Refreshing agents such as menthol and camphor;
Antihistamines such as diphenhydramine hydrochloride, chlorpheniramine maleate, glycyrrhizic acid derivatives;
Antioxidants such as silicone-based materials such as polymer silicone and cyclic silicone, tocopherols, BHA, BHT, gallic acid, NDGA;
Sebum inhibitors such as estradiol, estrone, ethinyl estradiol;
Exfoliating / dissolving agents such as sulfur, salicylic acid, resorcin;

  Organic synthetic pigments (dyes, lakes, organic pigments), natural pigments, inorganic pigments (external pigments, colored pigments, white pigments), pearlescent pigments, polymer powders, functional pigments It can be used without being limited to the shape of needles, etc., the particle size of fumes, fine particles, pigment grades, etc., and the structure of particles such as porous and nonporous. For example, talc, kaolin, sericite, calcium carbonate, zinc oxide, aluminum oxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, barium sulfate, chromium oxide, chromium hydroxide, tar dyes, mica, (synthetic) seric Site, silicon carbide, boron nitride, titanium dioxide, black titanium oxide, conger, red iron oxide, black iron oxide, yellow iron oxide, ultramarine, titanium coated mica, bismuth oxychloride, bengara, caking pigment, gunjo pink, gun Zou violet, chromium hydroxide, mica titanium, chromium oxide, aluminum cobalt oxide, carbon black, silicic anhydride, magnesium silicate, bentonite, (synthetic) mica, zirconium oxide, magnesium (meth) silicate aluminate, aluminum silicate Calcium oxide, Liethylene powder, nylon powder, polymethyl methacrylate, polyethylene terephthalate-polymethyl methacrylate laminate powder, acrylonitrile-methacrylic acid copolymer powder, vinylidene chloride-methacrylic acid copolymer powder, wool powder, silk powder, crystalline cellulose, N-acyl lysine, poly Methyl silsesquioxane powder, plant nuts and powdered powder, bismuth oxychloride, mica titanium, iron oxide coated mica, iron oxide mica titanium, organic pigment treated mica titanium, aluminum powder, fine particle titanium oxide, Fine zinc oxide, fine titanium oxide coated mica titanium, fine zinc oxide coated mica titanium, barium sulfate coated mica titanium, carmine, β-carotene, chlorophyll, sunset yellow FCF, Ponceau SX, eosin YS, TE Trabromofluorescein, rhodamine B, quinoline yellow SS, quinoline yellow WS, alizanin cyanine green, quinizarin green, resolbin BCA, resolbin BCA, permaton red, herringdon pink CN, phthalocyanine blue, β-apo-8-carotenal , Capsanthin, lylopine, bixin, crocin, canthaxanthin, shisonin, raphanin, ninocyanin, calsamine, safrole yellow, rutin, quercetin, cacao dye, lipoflavin, lacaic acid, carminic acid, kermesic acid, alizanin, shikonin, alkanine, niquinochrome, blood dye , Curcumin, betanin, etc.

Purified water, others, oyster extract, N-methyl-L-serine, whey, nicotinamide, diisopropylamine dichloroacetic acid, mevalonic acid, γ-aminobutyric acid (including γ-amino-β-hydroxybutyric acid), altea extract, Aloe extract, apricot kernel extract, turmeric extract, oolong tea extract, dried seawater, hydrolyzed wheat powder, hydrolyzed silk, carrot extract, cucumber extract, gentian extract, yeast extract, rice germ oil, comfrey extract, savonso extract, Giant extract, lion extract, birch extract, Atlantic mint extract, assembly extract, bisabolol, propolis, loofah extract, bodaiju extract, hop extract, marronnier extract, muroji extract, melissa extract, eucalyptus extract, yukinoshita extract, rosemary Kiss, Roman chamomile extract, royal jelly extract, seaweed, rice bran, licorice, citrus unshiu peel, angelica, pulverized Momonoha, sphingolipids, can include a guaiazulene and the like.
Further, the combined use with each zwitterionic surfactant is extremely useful in that the irritation is further reduced.
The bath agent of the present invention can be used not only as a solid or powder bath agent, but also as a liquid, gel or cream bath agent.
Hereinafter, the present invention will be described more specifically with reference to examples and the like.

The evaluation means used in the examples of the present invention are as follows.
(sensory evaluation)
Five panelists evaluated “no stickiness”, “moist feeling”, and “moisturizing effect” when using the bath preparations prepared in Examples and Comparative Examples for one week according to the following criteria.
Evaluation criteria for “no stickiness”, “moist feeling”, and “moisturizing effect” are as follows, and the determination result is good when the average score of the following evaluation scores is 4 or more (◯); A case where it is 5 or more and less than 4 is indicated as normal (Δ), and a case where it is less than 2.5 is indicated as defective (×). “Moist feeling” refers to the moist feeling of the skin within 20 minutes after bathing, and “moisturizing effect” refers to the moist feeling of the skin after 3 hours or more after bathing.
High standard score effect: 5
The effect is felt: 4
The effect is somewhat felt: 3
Little effect is felt: 2
Cannot feel the effect: 1
(Production Example 1: Acyl Compound)

  9.1 g (0.05 mol) of L-lysine hydrochloride was mixed with 57 g of water. While this solution was adjusted to a pH range of 10 to 11 with a 25% aqueous sodium hydroxide solution and the reaction temperature was maintained at 5 ° C., 31.1 g of N-lauroyl-L-glutamic anhydride (0. 1 mol) was added over 2 hours to carry out the reaction. After further stirring for 2 hours, tertiary butanol was added to a concentration of 20% by mass in the liquid, 75% sulfuric acid was added dropwise to bring the pH value of the liquid to 2, and the liquid temperature to 65 ° C. It was adjusted. After completion of the dropwise addition, stirring was stopped and the mixture was allowed to stand at 65 ° C. for 20 minutes, so that the organic layer and the aqueous layer were separated, and the organic layer was separated therefrom. Tertiary butanol and water were added to the separated organic layer, the temperature was raised to 65 ° C., and the mixture was stirred for 20 minutes. After the stirring was stopped, the mixture was allowed to stand to separate into an organic layer and an aqueous layer. After repeating the same water washing operation on the obtained organic layer, the solvent was removed from the obtained organic layer, the solvent was removed from the obtained organic layer, and the solid content was 30% by mass with sodium hydroxide, pH 6 And an aqueous composition solution containing an acyl compound represented by the following general formula (4).

（上記一般式４において、Ｘは、各々独立にＨまたはＮａ）
（製造例２：アシル化合物）
製造例１において、Ｎ−ラウロイル−Ｌ−グルタミン酸無水物３１．１ｇをＮ−ココイル−Ｌ−グルタミン酸無水物（３１．１ｇ）とし、組成物水溶液のｐＨを６とした以外は
、製造例１の方法と同じ条件で実施し、アシル化合物を含有する組成物を得た。

(In the above general formula 4, each X is independently H or Na)
(Production Example 2: Acyl Compound)
In Production Example 1, except that 31.1 g of N-lauroyl-L-glutamic acid anhydride was changed to N-cocoyl-L-glutamic acid anhydride (31.1 g) and the pH of the aqueous solution of the composition was changed to 6, It implemented on the same conditions as the method, and obtained the composition containing an acyl compound.

[Examples 1 to 6] [Comparative Examples 1 and 2]
Liquid bath preparations as shown in Table 1 were prepared. The evaluation results are shown in Table 1. Also, these bath preparations were used [Example 7].
A powdery bath agent as shown below was prepared. The evaluation of this product was “◯” for “no stickiness”, “moist feeling”, and “moisturizing effect”.
Ingredient Mass part Acylated product of Production Example 1 10
Sodium carbonate 40
Sodium sulfate 45
Sodium chloride 5
Pigment proper amount Fragrance proper amount

[Example 8]
A tablet bath preparation as shown below was prepared. The evaluation of this product was “◯” for “no stickiness”, “moist feeling”, and “moisturizing effect”.
Ingredient Mass part Acylated product of Production Example 2 15
Sodium sulfate 45
Sodium bicarbonate 12
Sodium carbonate 5
Succinic acid 23
Pigment proper amount Fragrance proper amount

[Example 9]
An oil type bath preparation as shown below was prepared. The evaluation of this product was “◯” for “no stickiness”, “moist feeling”, and “moisturizing effect”.
Ingredient Mass part Acylated product of Production Example 2 30
Liquid paraffin 25
Isopropyl palmitate 33
POE (15) oleylamine 7
Fragrance 5

[Example 10]
A cream type bath preparation as shown below was prepared. The evaluation of this product was “◯” for “no stickiness”, “moist feeling”, and “moisturizing effect”.
Ingredient Mass part Acylated product of Production Example 1 40
Liquid paraffin 35
Squalane 20
Macadamia nut oil 4
Water 1

  INDUSTRIAL APPLICABILITY The present invention can be suitably used as a bath agent with little stickiness and moist feeling and high moisturizing effect.

Claims (7)

The bath agent characterized by mix | blending the following component (A).
Component (A): one or more compounds represented by the following general formula (1)

(In the above general formula (1), X is a linear, branched, cyclic or aromatic hydrocarbon chain having a molecular weight of 1,000,000 or less, which may have m functional groups and other substituents. The n (m ≧ n) Qs bonded to X are substituents represented by the following general formula (2), which may be the same as or different from each other. In formula (2), Z is a bond derived from a functional group of X, R ¹ CO represents an acyl group derived from a saturated or unsaturated fatty acid having 2 to 20 carbon atoms, and R ² is A lower alkyl group having 1 to 3 carbon atoms which is hydrogen, or a hydroxyl group or a carboxyl group may be substituted, and Y is a carboxyl group, a sulfonic acid group, a sulfate ester group, a phosphate ester group or the like The salt inside of J and k are each independently 0, 1, or 2 and j and k are not 0 at the same time, n is an integer of 2 to 20, and m is m ≧ n. Indicates an integer.)

Component (A) At least one of the acyl compounds is a compound represented by the general formula (1), and in the general formula (1), X may have a substituent other than the functional group. The bath agent according to claim 1, wherein the bath agent is a spacer which is 1 to 40 linear, branched, cyclic or aromatic hydrocarbon chains. Furthermore, 1 or more types of component (B): humectant are contained, The bath agent of Claim 1 or 2 characterized by the above-mentioned. Furthermore, 1 or more types of component (C): oil component are contained, The bath agent in any one of Claims 1-3 characterized by the above-mentioned. The bath agent according to any one of claims 1 to 4, wherein the total amount of the component (A) is 0.001 to 50% by mass among the components excluding water in the bath agent. The total amount of the component (A) is 0.001 to 50% by mass and the total amount of the component (B) is 0.1 to 30% by mass among the components excluding water in the bath preparation. Or the bath preparation according to 4. Among the components excluding water in the bath preparation, the total amount of component (A) is 0.001 to 50% by mass, the total amount of component (B) is 0.1 to 30% by mass, and the total amount of component (C) is 0.00. It is 01-15 mass%, The bath agent in any one of Claims 1-4 characterized by the above-mentioned.