KR20200086710A - Skin cleanser composition - Google Patents

Abstract

A skin cleanser composition comprising the following components (A), (B), (C), (D) and (E), wherein the content of the component (D) in the composition is 35 to 62% by mass.
(A) A crosslinked product of 2 to 5 hydroxyalkyl modified starches crosslinked, a crosslinked product of 2 to 5 hydroxyalkyl modified starches and an acyl modified starch having 2 to 18 carbon atoms, and a crosslinked product of 2 to 18 carbon atoms. At least one crosslinked material selected from crosslinked crosslinked acyl-modified starches,
(B) N-acylamino acid salt,
(C) polyoxyethylene alkyl sulfosuccinate and/or alkyl sulfosuccinate,
(D) polyhydric alcohol,
(E) HLB 9 to 14.5 nonionic surfactant

Description

Skin cleanser composition

The present invention relates to a skin cleanser composition.

As a skin cleanser that is mild to the skin and has excellent usability, for example, N-acylamino acid salt, sulfosuccinic acid type surfactant, HLB 10 or more nonionic surfactant, and creamy face cleanser containing high polyhydric alcohol are known. Yes (Patent Document 1).

On the other hand, N-acylamino acid salt is a surfactant with little irritation, but in order to improve this, foam generation is poor, the texture of the foam is rough, and the foaming properties are poor. It has been proposed (Patent Documents 2 and 3).

Japanese Patent Application Publication No. 2004-155716 Japanese Patent Publication No. 2006-77184 Japanese Patent Application Publication No. 2005-232049

The present invention relates to a skin cleanser composition containing the following components (A), (B), (C), (D) and (E), wherein the content of the component (D) in the composition is 35 to 62% by mass. will be.

(A) A crosslinked product of 2 to 5 hydroxyalkyl modified starches crosslinked, a crosslinked product of 2 to 5 hydroxyalkyl modified starches and an acyl modified starch having 2 to 18 carbon atoms, and a crosslinked product of 2 to 18 carbon atoms. At least one crosslinked material selected from crosslinked crosslinked acyl-modified starches,

(B) N-acylamino acid salt,

(C) polyoxyethylene alkyl sulfosuccinate and/or alkyl sulfosuccinate,

(D) polyhydric alcohol,

(E) HLB 9 to 14.5 nonionic surfactant

Although the creamy face wash described in patent document 1 has a high foaming force and a lot of foam, the face wash has room for improvement in high temperature stability. Moreover, when 35 mass% or more of polyhydric alcohol was mix|blended, there existed a tendency for the amount of foam, the fineness of foam, and the moist washing finish feeling to fall. On the other hand, the cleaning composition described in Patent Literatures 2 and 3 has been confirmed to have a certain improvement in foaming property and creaminess of foam, but cannot be said to be sufficient from recent consumer demand characteristics, and there is room for further improvement.

The present inventors, as a result of various studies to develop a detergent composition for skin that solves the above problems, a specific starch crosslinked product, N-acylamino acid salt, polyoxyethylene alkyl sulfosuccinate and/or alkyl sulfosuccinate and HLB By using a combination of 9 to 14.5 nonionic surfactants, even when polyhydric alcohols are contained at high concentrations (35 to 62 mass%), high temperature stability is excellent, and foaming properties such as foaming and fine texture of foam It was found that this excellent skin cleanser composition was obtained, and the present invention was completed.

The skin cleanser composition of the present invention is excellent in high temperature stability, fast foaming property, large amount of foam, excellent foaming properties such as fineness of foam, and a moist texture after washing.

The component (A) used in the present invention is a crosslinked product in which hydroxyalkyl modified starches having 2 to 5 carbon atoms are crosslinked, a hydroxyalkyl modified starch having 2 to 5 carbon atoms and acyl modified starch having 2 to 18 carbon atoms are crosslinked. Crosslinked material, at least 1 type of crosslinked material selected from the crosslinked products of acyl-modified starch having 2 to 18 carbon atoms, and 2 types of hydroxyalkyl modified starch having 2 to 5 carbon atoms and acyl-modified starch having 2 to 18 carbon atoms. It means that the modified starch of is crosslinked between homogeneous or heterogeneous species (see Japanese Patent Publication No. 2000-514435).

The term "hydroxylated starch having 2 to 5 carbon atoms" is a starch to which a hydroxyl group is bonded to a starch skeleton via an alkyl group having 2 to 5 carbon atoms, and a favorable balance of hydrophilicity and lipophilicity of starch is obtained. The position of the hydroxyl group in the alkyl group is not critical, and any position can be taken. It is preferable that the degree of substitution by hydroxyalkylation is 0.08 to 0.3. The degree of substitution is the average number of hydroxyl groups of the starch molecule per unit of anhydroglucose. Hydroxyalkylation of natural starch is achieved by reacting alkene oxides having an appropriate number of carbon atoms of natural starch. Hydroxyethylated starch and/or hydroxypropylated starch obtained by reacting starch with ethylene oxide or propylene oxide are preferred. Moreover, you may have a several hydroxyl group per one alkyl group.

The "acyl-modified starch having 2 to 18 carbon atoms" is a starch acylated by an acyl group having 2 to 18 carbon atoms, and a desirable balance of hydrophilicity and lipophilicity of the starch is obtained. Acylation is usually performed by reaction with an acid anhydride represented by the general formula (R-CO) ₂ O. Here, R represents an alkyl group such as a methyl group or an ethyl group.

Crosslinking of these modified starches can be carried out with a suitable crosslinking agent, for example, a bifunctional compound. As a preferable bridge|crosslinking method, phosphorylation is mentioned, for example. In this case, the starch is reacted with phosphoryl chloride, phosphorus pentoxide and/or sodium trimetaphosphate. The two starches are crosslinked by an anionic P-O group.

As a preferable crosslinking method, a method using an alkanedicarboxylic acid having 4 to 18 carbon atoms or an alkenedicarboxylic acid is mentioned. It is preferable to use alkane dicarboxylic acids having 4 to 8 carbon atoms, particularly adipic acid. An alkanedicarboxylic acid or an alkendicarboxylic acid having 4 to 18 carbon atoms bonds two starches through an ester bond. The starch may be linear or branched. Such a crosslinked product crosslinked by dicarboxylic acid is obtained by, for example, reacting starch with a mixed anhydride of dicarboxylic acid and acetic acid. In the case of dry starch, a crosslinking agent of less than 0.1% by mass, usually 0.06% by mass, is used.

As the starch crosslinked product, hydroxypropyldistachyphosphate and acetylated disstadiadiphosphate are preferred.

The starch of the raw material used to obtain the above-mentioned specific starch may be any vegetable starch. Examples of such starch include corn, potato, wheat, rice, tapioca, sweet potato, and sago. As for the starch of these raw materials, it is preferable that the amylopectin content contained in it is at least 70 mass %, at least 85 mass% is more preferable, and at least 90 mass% is more preferable.

The starch crosslinked product of component (A) is preferably gelatinized and more preferably gelatinized. In the gelatinization, it is preferable that the starch of the raw material may be gelatinized in advance, the crosslinked product may be gelatinized, and as a result, the starch crosslinked product used is gelatinized.

As a method commonly used for the production of such starch, for example, cylindrical drying and extrusion spray drying can be exemplified.

Cylindrical drying includes simultaneously cooking and drying a highly viscous semi-solid starch paste on a heating drum. The dry film is removed from the drum using a metal blade, and then ground. This step can be carried out until the individual content becomes very large.

The extrusion drying method can be used to simultaneously cook and dry starch (see US Patent Specification No. 3,137,592). This method uses physical treatment of the starch/water mixture under high temperature and pressure, whereby the starch is gelatinized, and the starch from the nozzle expands with the sudden evaporation of water.

The crosslinked product of component (A) can be produced, for example, by the method described in JP 2005-232049 A.

Further, as the crosslinked product of component (A), a crosslinked product crosslinked with hydroxyalkyl modified starch having 2 to 5 carbon atoms and an acyl modified starch having 2 to 18 carbon atoms is preferable, and hydroxypropyl starch phosphate is More preferably, commercial products, such as STRUCTURE XL (made by Akzo Nobel), STRUCTURE ZEA (made by Akzo Nobel), can be used, for example.

As the crosslinked product of the component (A), one type or two or more types can be used, and the content in the skin cleaning composition is from the viewpoint of improving the high temperature stability, fast foaming property, foaming amount, fineness of the foam, and moisture after washing. 0.1 mass% or more is preferable, 0.2 mass% or more is more preferable, 0.3 mass% or more is more preferable, 0.5 mass% or more is more preferable, 0.7 mass% or more is more preferable, and 4 mass% or less Is preferable, 2.5 mass% or less is more preferable, 2.0 mass% or less is more preferable, 1.7 mass% or less is more preferable, and 1.3 mass% or less is more preferable. The content of the component (A) in the skin cleanser composition is preferably 0.1 to 4 mass%, more preferably 0.2 to 2.5 mass%, still more preferably 0.3 to 2.0 mass%, still more preferably 0.5 to 1.7 mass% , 0.7 to 1.3 mass% is more preferable.

As an amino acid residue in the N-acylamino acid salt of component (B), acidic amino acids such as glutamic acid and aspartic acid, neutral amino acids such as glycine, alanine, threonine, methylalanine, and sarcosine (methylglycine), lysine, arginine And basic amino acids. One type of these may be used, or two or more types selected from the above groups may be mixed and used. Moreover, although L-form, D-form and DL-form exist in these amino acids, L form is preferable from a viewpoint of improving the aging stability of a formulation.

Among these, acidic amino acids or neutral amino acids are more preferable as amino acid residues from the viewpoint of stability with time, rapid foaming, foaming amount, foam texture, and moistness after washing. Specifically, it is preferable to contain 1 or 2 types selected from glutamic acid, aspartic acid, glycine and alanine, and it is more preferable to contain 1 or 2 types selected from glutamic acid and glycine, and it is more preferable to include glycine. It is more preferable to do.

In particular, it is preferable to contain at least 50% by mass or more of the N-acylglycine salt in the component (B) from the viewpoint of satisfactory high temperature stability, fast foaming property, foaming amount, fineness of the foam, and moistness after washing. % Or more is more preferable, and 75 mass% or more is more preferable.

Moreover, as the acyl group, a saturated or unsaturated, straight or branched chain acyl group can be preferably used at 10 to 20 carbon atoms. The carbon number of the acyl group is preferably 10 or more and 18 or less, more preferably 10 or more and 16 or less, and even more preferably 10, from the viewpoint of improving the foaming property, the amount of foam, and the foaming property and improving the moistness after washing. It is 14 or more. Specifically, an acyl group by fatty acids (including branched fatty acids), such as a decanoyl group, lauroyl group, myristoyl group, palmitoyl group, stearoyl group, oleoyl group, linoleyl group, and the like. These may be derived from animals and plants, and mixed fatty acids obtained from nature such as palm oil fatty acids, castor oil fatty acids, olive oil fatty acids, and palm oil fatty acids. Of these, from the viewpoint of improving the aging stability of the formulation, the acyl group is preferably a saturated straight chain or branched acyl group, and more preferably a saturated straight chain acyl group.

Moreover, as these salts, For example, inorganic salts, such as sodium salt, potassium salt, calcium salt, magnesium salt, aluminum salt, zinc salt; Organic amine salts such as ammonium salts, monoethanolamine salts, diethanolamine salts, and triethanolamine salts; and organic salts such as basic amino acid salts such as arginine salts and lysine salts. It can be used by mixing. From the viewpoint of low skin irritation and suppressing pulling after washing, it is preferable to include one or two or more selected from sodium salts, potassium salts and triethanolamine salts, and one selected from sodium salts and potassium salts, or It is more preferable to include two types.

Preferred specific examples of the N-acylamino acid salt include N-lauroylglycine, N-lauroylglutamic acid, N-myristoylglycine, N-myristoylglutamic acid, N-cocoylglycine, and N-cocoylglutamic acid And sodium salts, potassium salts, and triethanolamine salts.

As a commercial item of a component (B), for example, amylite GCK-11 (made by Ajinomoto), amylite GCS-11 (made by Ajinomoto), Amisoft CT-12 (made by Ajinomoto), Amisoft LS- 11 (manufactured by Ajinomoto), Amisoft MS-11 (manufactured by Ajinomoto), and the like.

As for the N-acylamino acid salt of component (B), 1 type(s) or 2 or more types can be used, and the content in the skin cleaning composition is preferably 10% by mass or more, and 12% by mass, from the viewpoint of improving the moisture after washing. The above is more preferable, 15 mass% or more is more preferable, 18 mass% or more is more preferable, 30 mass% or less is preferable, 28 mass% or less is more preferable, and 25 mass% or less is more preferable And more preferably 22% by mass or less. The content of the component (B) in the skin cleanser composition is preferably 10 to 30 mass%, more preferably 12 to 28 mass%, still more preferably 15 to 25 mass%, and still more preferably 18 to 22 mass%. .

The polyoxyethylene alkyl sulfosuccinate and/or alkyl sulfosuccinate of component (C) is not particularly limited and can be appropriately selected according to the purpose, but from the viewpoint of improving the moistness after washing, as the alkyl chain, carbon number It is preferable to have a monovalent hydrocarbon group of 12 to 22, and more preferably, it has a monovalent hydrocarbon group of 12 to 14 carbon atoms.

As the salt, alkali metal salts, alkaline earth metal salts, amine salts, and amino acid salts are preferred, and from the viewpoint of satisfactory foaming and foaming, alkali metal salts such as sodium and potassium, and substituted or unsubstituted ammonium salts are more preferable. It is preferable, and it is more preferable to include 1 or 2 types selected from substituted or unsubstituted ammonium salts and sodium salts.

Moreover, as ethylene addition mole number of polyoxyethylene alkyl sulfosuccinate, 1-10 are preferable from a viewpoint of making foam quantity and foaming favorable, Especially, 2-5 are more preferable.

Specifically as component (C), polyoxyethylene (1) alkyl (12-14) sulfosuccinate, polyoxyethylene (2) alkyl (12-14) sulfosuccinate, polyoxyethylene (3) alkyl (12) ∼ 14) sulfosuccinate, polyoxyethylene (5) dialkyl (12-14) sulfosuccinate, polyoxyethylene (7) dialkyl (12-14) sulfosuccinate, polyoxyethylene (9) dialkyl ( 12 to 14) Sulfosuccinate, polyoxyethylene (2) alkyl (12 to 15) sulfosuccinate, sulfosuccinate polyoxyethylene (2) monooleylamide salt, polyoxyethylene (4) palm oil fatty acid isopropanolamide sulfosuccinic acid Salts, polyoxyethylene sulfosuccinate (5) lauroylethanolamide salt, undecylenoylamide ethyl sulfosuccinate, diethylhexyl sulfosuccinate, lauryl sulfosuccinate, laureth sulfosuccinate and the like. Among these, from the viewpoint of improving the foaming property and the amount of foam, it is preferable to include one or two or more selected from polyoxyethylene monoalkyl sulfosuccinate and monoalkyl sulfosuccinate, and polyoxyethylene (3 ) It is more preferable to include one or two types selected from disodium lauryl sulfosuccinate and disodium lauryl sulfosuccinate, and more preferably to include disodium lauryl sulfosuccinate.

As the component (C), one type or two or more types can be used, and the content in the skin cleaning composition is preferably 0.5% by mass or more from the viewpoint of improving the foaming property, the amount of foam, the texture of the foam, and the moisture after washing. , 1.0 mass% or more is more preferable, 1.5 mass% or more is more preferable, 1.8 mass% or more is more preferable, 2.0 mass% or more is more preferable, 2.5 mass% or more is more preferable, and 8 Mass% or less is preferable, 7 mass% or less is more preferable, 6 mass% or less is more preferable, 5.5 mass% or less is more preferable, 5.0 mass% or less is more preferable, and 4.5 mass% or less is more preferable Do. The content of the component (C) in the skin cleanser composition is preferably 0.5 to 8 mass%, more preferably 1.0 to 7 mass%, still more preferably 1.5 to 6 mass%, still more preferably 1.8 to 5.5 mass% , 2.0 to 5.0 mass% are more preferable, and 2.5 to 4.5 mass% are more preferable.

In the present invention, the mass ratio (A)/(C) of the component (A) to the component (C) is 0.1 from the viewpoint of improving high-temperature stability, fast foaming property, foaming amount, texture of the foam, and moisture after washing. The above is preferable, 0.15 or more is more preferable, 0.25 or more is more preferable, 0.8 or less is preferable, 0.6 or less is more preferable, and 0.4 or less is still more preferable. The mass ratio (A)/(C) of the component (A) to the component (C) is preferably 0.1 to 0.8, more preferably 0.15 to 0.6, and even more preferably 0.25 to 0.4.

In the present invention, the mass ratio (B)/(C) of the component (B) to the component (C) is preferably 3.5 or higher, from the viewpoint of improving the foaming property, the amount of foaming, and the moistness after washing, and is 4 or higher. It is more preferable, 4.5 or more are more preferable, 15 or less are preferable, 13 or less are more preferable, and 11 or less are still more preferable. As for the mass ratio (B)/(C) of component (B) with respect to component (C), 3.5-15 are preferable, 4-13 are more preferable, and 4.5-11 are still more preferable.

As the polyhydric alcohol of the component (D), one or two or more selected from (D1) dihydric alcohol and (D2) trihydric or higher alcohol may be contained.

(D1) As the dihydric alcohol, specifically, ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,2-pentylene glycol, 1,3-pentylene glycol, 1,4-pentylene glycol , Alkylene glycols such as 1,5-pentylene glycol and hexylene glycol; Diethylene glycol, dipropylene glycol, and the like. Among these, from the viewpoint of improving the fineness of foam, the amount of foam, and the persistence of foam, one or two types selected from ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol and 1,3-butylene glycol It is preferable to include the above, and it is more preferable to contain at least 1,3-butylene glycol.

(D2) Among the trivalent or higher alcohols, glycerin, trimethylolpropane, and the like are mentioned as the trivalent alcohol. Examples of the tetravalent or higher alcohol include polyglycerins such as diglycerin and triglycerin; Sugars or sugar alcohols such as glucose, maltose, maltose, sucrose, xylitol, sorbitol, malbitol, polyoxyethylene methyl glucoside, polyoxyethylene ethyl glucoside, and polyoxyethylene propylene glucoside. Of these, 1 selected from glycerin (or higher, trivalent alcohol), diglycerin, sorbitol, malbitol, and polyoxyethylene methylglucoside (or higher, tetravalent or higher alcohol) from the viewpoint of improving high temperature stability and moisture after washing. It is preferable to include a species or two or more, and more preferably one or two or more selected from glycerin, diglycerin, sorbitol and malbitol, and one or two selected from glycerin and diglycerin. It is more preferable to include, and it is more preferable to include at least glycerin.

In this invention, it is preferable that (D1) dihydric alcohol and (D2) trihydric alcohol are contained in component (D). When the component (D) and the component (D2) are contained in the component (D), the component (D2) relative to the total amount of the component (D) ((D1) + (D2)) from the viewpoint of improving the moistness after washing The content ratio of (((D2)/((D1) + (D2))) is preferably 0.6 or more, more preferably 0.7 or more, still more preferably 0.8 or more, still more preferably 0.98 or less, and 0.95 or less Is more preferred. The content ratio [(D2)/((D1) + (D2)) of the component (D2) to the total amount of the component (D) ((D1) + (D2))] is preferably 0.6 to 0.98, and 0.7 -0.98 is more preferable, and 0.8-0.95 is still more preferable.

Moreover, it is preferable to contain 60 mass% or more of component (D2) in component (D), 70-95 mass% is more preferable, and 80-95 mass% is still more preferable.

Moreover, it is preferable to contain glycerin 60 mass% or more in component (D), and it is more preferable to set it as 75 mass% or more. By setting the amount of glycerin in component (D) to this range, the high temperature stability of the crystallized state of the N-acylamino acid salt of component (B) is further improved.

As component (D), 1 type or 2 or more types can be used and content in skin cleaning composition is 35 mass% or more from a viewpoint of improving aging stability, 40 mass% or more is preferable, and 42 mass% or more It is more preferable, 45 mass% or more is more preferable, it is 62 mass% or less, 60 mass% or less is preferable, 58 mass% or less is more preferable, 55 mass% or less is more preferable. The content of the component (D) in the skin cleanser composition is 35 to 62% by mass, preferably 40 to 60% by mass, more preferably 42 to 58% by mass, and even more preferably 45 to 55% by mass.

The nonionic surfactant of component (E) is HLB 9-14.5.

The nonionic surfactant of the component (E) can be used alone or in combination of two or more, and when two or more nonionic surfactants are used, the mixed HLB of the mixed surfactant composed of these is 9 It is 14.5.

HLB of the mixed surfactant consisting of one type of nonionic surfactant or two or more types of nonionic surfactant is preferably 9.5 or more, and more preferably 10.5 or more from the viewpoint of improving stability over time, foaming property, and foaming amount. It is preferable, 11 or more are more preferable, 14 or less are preferable, 13.5 or less are more preferable, and 13 or less are still more preferable. The nonionic surfactant of the component (E) has an HLB of 9 to 14.5, preferably 9.5 to 14 of HLB of a mixed surfactant composed of one type of nonionic surfactant or two or more types of nonionic surfactant, 10.5-13.5 are more preferable, and it is still more preferable that it is 11-13.

Here, HLB (hydrophilic-lipophilic balance <Hydrophilic-Lipophilic Balance>) represents the molecular weight of the hydrophilic group in the total molecular weight of the surfactant, and the nonionic surfactant can be obtained by the formula of Griffin. It is possible.

The HLB of a mixed surfactant composed of two or more types of nonionic surfactants is a phase addition average of HLB values of each nonionic surfactant based on the compounding ratio, as in the following formula.

Mixed HLB = Σ(HLBx × Wx)/Wx

HLBx represents the HLB value of the nonionic surfactant X.

Wx represents the mass (g) of the nonionic surfactant X having the value of HLBx.

The nonionic surfactant of component (E) is not limited as long as it satisfies the above conditions. For example, it is composed of a fatty acid ester having 8 to 22 carbon atoms and an ether of a higher alcohol having 8 to 22 carbon atoms, and is hydrophilic. What has a hydroxyl group and an ethylene oxide group is mentioned as a functional group of this.

Specifically, glycerin fatty acid ester, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene glycerin fatty acid ester, propylene glycol fatty acid ester, polyoxyethylene polyoxypropylene glycol, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester , Polyoxyethylene sorbitic fatty acid ester, polyoxyethylene castor oil, polyoxyethylene cured castor oil, polyoxyethylene cured castor oil fatty acid ester, polyalkylglyceryl ether, polyoxyethylene alkyl ether, polyoxyethylene alkyl ether fatty acid ester , Sucrose fatty acid ester, alkyl polyglucoside, (poly) alkyl glyceryl ether, and the like.

Among these, glycerin fatty acid ester, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbitic fatty acid ester, from the viewpoint of improving the stability of aging and improving the amount of foam and the texture of foam. , (Poly) alkyl glyceryl ether, polyoxyethylene alkyl ether, sucrose fatty acid ester and preferably one or two or more selected from alkyl polyglucosides, from the viewpoint of stability over time, glycerin fatty acid esters and polyglycerin It is more preferable to contain 1 type, or 2 or more types selected from fatty acid esters.

More specifically, polyglyceryl myristate-10 (HLB: 15), glyceryl stearate (HLB: 9), glyceryl monocaprylate (HLB: 7.2), glyceryl monocaprate (HLB: 6.5), polyglyceryl laurate-10 (HLB: 15.5) and polyglyceryl-4 lauryl ether (HLB: 12.3).

These components (E) are used in combination of two or more nonionic surfactants having a high HLB and nonionic surfactants having a low HLB from the viewpoint of further improving the stability of aging and improving the amount of foam and the texture of the foam. It is preferred. In the present invention, it is preferable to use one or more of non-ionic surfactants of HLB 10 or more and one or more non-ionic surfactants of less than HLB 10, and it is preferable to use HLB 12 or more of non-ionic surfactants. It is more preferable to combine 1 or more types and 1 or more types of nonionic surfactants of HLB 6 or more and 9.5 or less.

As the component (E), one type or two or more types can be used, and the content in the skin cleaning composition is preferably 1% by mass or more, and more preferably 2% by mass or more, from the viewpoint of improving high temperature stability and moistness after washing. It is preferable, 4 mass% or more is more preferable, 12 mass% or less is preferable, 10 mass% or less is more preferable, and 8 mass% or less is more preferable. The content of the component (E) in the skin cleanser composition is preferably 1 to 12% by mass, more preferably 2 to 10% by mass, and even more preferably 4 to 8% by mass.

The skin cleanser composition of the present invention may further contain (F) a cationic polymer from the viewpoint of improving the foaming property and moistness after cleaning.

As a cationic polymer, it is a polymer containing an amino group, imidazolyl group, pyridyl group, salts or quaternized salts thereof. From the viewpoint of quick foaming and foaming, the cation charge density is preferably 2 meq/g or more, and more preferably 3 to 7 meq/g.

Here, the cation charge density means the number of equivalents (meq/g) of the cation charge in the monomer units constituting the polymer.

Examples of such cationic polymers include homopolymers of dimethyldiallylammonium chloride; Copolymers of dimethyldiallyl ammonium chloride with other monomers such as (meth)acrylic acid, (meth)acrylic acid ester, and (meth)acrylamide; And polychlorinated methacryloyloxyethyl trimethylammonium chloride.

More specifically, a homopolymer of dimethyldiallylammonium chloride (Merquart 100; manufactured by NALCO: charge density 6.2 meq/g), a copolymer of dimethyldiallylammonium chloride and acrylic acid (Merquart 295; manufactured by NALCO: Charged) Density 5.9 meq/g), copolymer of dimethyldiallylammonium chloride and acrylic acid (Merquart 280; manufactured by NALCO: charge density 5.0 meq/g), copolymer of dimethyldiallylammonium chloride and acrylamide (Merquart 550, Mercut 550PR; manufactured by NALCO: charge density 3.2 meq/g), polymethacryloyloxyethyltrimethylammonium chloride (Kao Corporation: charge density 4.8 meq/g), methylvinylimidazolium chloride and vinylpyrroli Don's copolymer (Rubyquat excellence; BASF company make: charge density 6.1 meq/g, Rubyquat FC550; BASF company make: charge density 4.4 meq/g) etc. are mentioned.

The cationic polymer of the component (F) is a homopolymer of dimethyldiallylammonium chloride, a copolymer of dimethyldiallylammonium chloride and acrylic acid, and dimethyldiallylammonium chloride from the viewpoint of rapid foaming, foaming, and moistness after washing. Copolymers of acrylamide are preferred.

As the component (F), one type or two or more types can be used, and the content in the skin cleaning composition is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, from the viewpoint of improving the moisture after washing. 0.01 mass% or more is more preferable, 0.3 mass% or less is preferable, 0.2 mass% or less is more preferable, and 0.1 mass% or less is more preferable. The content of the component (F) in the skin cleanser composition is preferably 0.001 to 0.3 mass%, more preferably 0.005 to 0.2 mass%, and even more preferably 0.01 to 0.1 mass%.

In the present invention, (G) water forms the remainder of each component, and the content in the skin cleanser composition is preferably 5% by mass or more, more preferably 10% by mass or more, and 15% by mass from the viewpoint of stability over time. % Or more is more preferable, 30 mass% or less is preferable, 28 mass% or less is more preferable, and 25 mass% or less is more preferable. The content of the component (G) in the water in the skin cleanser composition is preferably 5 to 30% by mass, more preferably 10 to 28% by mass, and even more preferably 15 to 25% by mass.

The skin cleanser composition of the present invention is a component used in a typical skin cleanser composition other than the above components (A) to (G), such as the component (B), ( Surfactants other than C) and (E), water-soluble polymers other than component (F), oil components, pH adjusting agents, fungicides, anti-inflammatory agents, preservatives, chelating agents, salts, pearling agents, scrubs, flavoring agents, cooling agents, pigments, ultraviolet rays Absorbents, antioxidants, plant extracts, and the like. In addition, each of these agents is not limited to the use as each agent, and depending on the purpose, other uses, for example, a cold reducing agent may be used as a fragrance, or in combination with other uses, for example, as a cooling agent and fragrance It can be used as an effect.

The skin cleanser composition of the present invention may contain an oily component from the viewpoint of improving rinsability. The content of the oily component in the skin cleanser composition is preferably 3% by mass or less, more preferably 2% by mass or less, and more preferably 1% by mass, from the viewpoint of maintaining good foaming property, amount of foam, fineness of foam, and cleaning power. The following are more preferable, and 0.5 mass% or less is more preferable. Here, the oil component is a hydrophobic substance that is phase-separated from water, and includes oils and fats, hydrocarbon oils, ester oils, higher alcohols (10 or more carbon atoms), and silicone oils.

Moreover, as surfactants other than components (B), (C) and (E), anionic surfactants other than components (B) and (C), cationic surfactants, amphoteric surfactants, etc. may be mentioned. .

The skin cleanser composition of the present invention may further contain anionic surfactants other than component (B) and component (C) from the viewpoint of improving the cleaning power. Examples of the anionic surfactants other than component (B) and component (C) include fatty acid salts, alkylbenzenesulfonic acid salts, alkanesulfonic acid salts, alkenylsulfonic acid salts, alkylsulfonic acid salts, acyl isethionate salts, and alkyl sulfate ester salts. Alkyl ether sulfuric acid ester salt, sulfo fatty acid methyl ester salt, fatty acid alkanolamide sulfuric acid ester salt, monoacylglycerol sulfate ester salt, alkyl phosphoric acid ester salt, polyoxyethylene alkyl ether phosphate, alkylaryl ether phosphate, fatty acid amide ether phosphoric acid, ether And carboxylic acids and salts thereof. The content of the anionic surfactants other than the component (B) and the component (C) is component (B) from the viewpoint of improving aging stability and maintaining good cleanliness, quick foaming, foaming amount, and fineness of foam after washing. And less than 30 mass%, more preferably less than 15 mass%, even more preferably less than 10 mass%, still more preferably less than 5 mass%, and even more preferably 3 mass% with respect to the total amount of the content of component (C). The following are more preferable, and 1 mass% or less is more preferable.

The skin cleanser composition of the present invention may further contain a cationic surfactant and/or an amphoteric surfactant from the viewpoint of satisfactory moistness after washing. The content of the cationic surfactant and/or amphoteric surfactant in the skin detergent composition is preferably 5% by mass or less, and 3% by mass, from the viewpoint of satisfactorily maintaining the foaming property, the amount of foam, the fineness of the foam, and the cleaning power. The following are more preferable, 1 mass% or less is more preferable, and 0.5 mass% or less is more preferable.

The skin cleanser composition of the present invention can be prepared according to a conventional method.

For example, it can be manufactured by a method including the following steps 1, 2, 3 and 4.

Step 1: The step of sequentially adding and mixing the components (A), (D), (G), and other optional components.

Step 2: The step of sequentially adding and mixing the component (B), component (C), component (E), and other optional surfactant components.

Step 3: The preparation of step 2 is added to the preparation of step 1, and is heated and mixed uniformly in the range of 70 to 90°C.

Step 4: a step of cooling the preparation of step 3 and cooling it to a range of 20 to 35°C.

When adding the component (F), in step 4, it is preferable to have a step of adding and mixing a predetermined amount of component (F) when the preparation of step 3 is cooled in the range of 40 to 55°C.

Moreover, when it is necessary to adjust the pH of a skin cleanser composition to a predetermined range, it is preferable to have the process of adding and mixing a pH adjuster further in the said step 1.

Moreover, from the viewpoint of improving the aging stability, the skin cleanser composition of the present invention preferably has a pH of 4 or more, more preferably 5 or more, more preferably 5.5 or more, still more preferably 6 or more, and 7.5 The following is preferable, 7.2 or less is more preferable, and 7 or less is still more preferable. The pH of the skin cleanser composition of the present invention is preferably 4 to 7.5, more preferably 5 to 7.2, further preferably 5.5 to 7.2, and even more preferably 6 to 7.

In addition, pH measurement is the value measured by the pH meter (F-22, HORIBA company make) that the skin cleanser composition was diluted with water and made into the 10 mass% dilution solution at 30 degreeC.

Moreover, as a pH adjuster adjusted to the said pH, inorganic acids, organic acids, etc. can be used without limitation. Of these, from the viewpoint of suppressing precipitation in the formulation, organic acids are preferred, and it is more preferable to include one or two or more selected from glycolic acid, citric acid, malic acid, succinic acid, tartaric acid, and lactic acid, and citric acid and malic acid More preferably, one or two species are selected.

The skin cleanser composition of the present invention can be applied as a skin cleanser for washing by making foam, for example, a hand cleanser, face wash, cleansing agent, body soap, and scalp cleaner.

In addition, the skin cleanser composition of the present invention can be used by applying to the skin, more specifically, any of the scalp, face, body, limbs, etc., preferably the skin excluding the scalp and washing with water.

Moreover, it is preferable that the skin cleanser composition of this invention is semi-solid form, such as a cream form and a paste form. Here, the paste (cream) is not a phrase indicating an emulsifier type, but a non-liquid paste (cream) form, that is, a small state even if there is no fluidity at room temperature. When the skin cleanser composition of the present invention is in the form of a paste, the viscosity at 25°C is preferably 10000 mPa·s or more, and more preferably 800000 mPa·s or less from the viewpoint of being dissolved in water. Here, the viscosity is B8R type helical stand (TV-B type, Tokyo Instruments), viscosity 1000 mPa·s or more and less than 100000 mPa·s, spindle TA, rotation speed 5 rpm, viscosity 100000 mPa·s or more Is measured by spindle TB and rotation speed 5 rpm.

Moreover, it is preferable to use the skin cleanser composition of this invention filled in a tube container.

Regarding the above-described embodiment, the present invention also discloses the following compositions.

<1> A skin cleanser composition containing the following components (A), (B), (C), (D) and (E), wherein the content of the component (D) in the composition is 35 to 62% by mass.

(A) A crosslinked product of 2 to 5 hydroxyalkyl modified starches crosslinked, a crosslinked product of 2 to 5 hydroxyalkyl modified starches and an acyl modified starch having 2 to 18 carbon atoms, and a crosslinked product of 2 to 18 carbon atoms. At least one crosslinked material selected from crosslinked crosslinked acyl-modified starches,

(B) N-acylamino acid salt,

(C) polyoxyethylene alkyl sulfosuccinate and/or alkyl sulfosuccinate,

(D) polyhydric alcohol,

(E) HLB 9 to 14.5 nonionic surfactant

<2> In the component (A), the hydroxyalkyl modified starch having 2 to 5 carbon atoms is preferably hydroxyethylated starch and/or hydroxypropylated starch obtained by reacting starch with ethylene oxide or propylene oxide. The skin cleanser composition according to <1> above.

<3> In the above <1> or <2>, wherein the crosslinked product of the component (A) preferably contains one or two or more selected from hydroxypropyldistachyphosphate and acetylated disstadiadiphosphate. The skin cleanser composition described.

<4> The crosslinked product of the component (A) is preferably a crosslinked product of a hydroxyalkyl modified starch having 2 to 5 carbon atoms and an acyl modified starch having 2 to 18 carbon atoms, which is a crosslinked product of hydroxypropyl starch. The skin cleaning composition according to the above <1>, wherein phosphoric acid is more preferable.

The content of the <5> component (A) in the skin cleanser composition is preferably 0.1 mass% or more, more preferably 0.2 mass% or more, still more preferably 0.3 mass% or more, and still more preferably 0.5 mass% or more. And more preferably 0.7 mass% or more, more preferably 1.0 mass% or more, further preferably 4 mass% or less, more preferably 2.5 mass% or less, still more preferably 2.0 mass% or less, and 1.7 mass Skin cleaner composition as described in any one of said <1>-<4> which is more preferably less than 1.5% and more preferably less than 1.5 mass%.

<6> In the N-acylamino acid salt of component (B), the amino acid residue preferably comprises one or two or more selected from glutamic acid, aspartic acid, glycine and alanine as acidic or neutral amino acids. The skin cleanser composition according to any one of the above <1> to <5>, more preferably, and more preferably, one or two selected from glutamic acid and glycine.

<7> The above <1> to <6, wherein the component (B) preferably contains at least 50% by mass or more of an N-acylglycine salt, more preferably 70% by mass or more, and even more preferably 75% by mass or more. > The skin cleanser composition as described in any one of the above.

In the N-acylamino acid salt of <8> component (B), the acyl group is preferably 10 to 20 carbon atoms, and saturated or unsaturated, linear or branched acyl group, 10 to 18 The skin cleanser composition as described in any one of said <1>-<7> which is more preferable, more preferably 10 or more and 16 or less, and still more preferably 10 or more and 14 or less.

<9> Component (B) is preferably N-lauroylglycine, N-lauroylglutamic acid, N-myristoylglycine, N-myristoylglutamic acid, N-cocoylglycine, N-coco The skin cleanser composition according to any one of the above <1> to <8>, which is one or two or more selected from sodium salt, potassium salt, and triethanolamine salt of monoglutamic acid.

The content of the <10> component (B) in the skin cleanser composition is preferably 10 mass% or more, more preferably 12 mass% or more, still more preferably 15 mass% or more, and even more preferably 18 mass% or more. In addition, 30 mass% or less is preferable, 28 mass% or less is more preferable, 25 mass% or less is more preferable, and 22 mass% or less is more preferable and described in any one of said <1>-<9>. Skin cleanser composition.

<11> The polyoxyethylene alkyl sulfosuccinate and/or alkyl sulfosuccinate of the component (C) preferably has a monovalent hydrocarbon group having 12 to 22 carbon atoms as an alkyl chain, and has 1 to 12 carbon atoms. The skin cleanser composition as described in any one of said <1>-<10> which more preferably has a hydrocarbon group.

<12> The component (C) preferably contains one or two or more selected from polyoxyethylene monoalkyl sulfosuccinate and monoalkyl sulfosuccinate, and polyoxyethylene (3) lauryl sulfosuccinic acid. It is more preferable to include 1 type or 2 types selected from disodium and lauryl disulfosulfate, and it is more preferable to include disodium lauryl sulfosuccinate, as described in any one of <1> to <11> above. Skin cleanser composition.

The content of the <13> component (C) in the skin cleanser composition is preferably 0.5 mass% or more, more preferably 1.0 mass% or more, still more preferably 1.5 mass% or more, and still more preferably 1.8 mass% or more. And more preferably 2.0 mass% or more, more preferably 2.5 mass% or more, further preferably 8 mass% or less, more preferably 7 mass% or less, still more preferably 6.0 mass% or less, and 5.5 mass% % Or less is more preferable, 5.0 mass% or less is more preferable, and 4.5 mass% or less is more preferable. The skin cleanser composition according to any one of <1> to <12>.

<14> The mass ratio (A)/(C) of the component (A) to the component (C) is preferably 0.1 or more, more preferably 0.15 or more, still more preferably 0.25 or more, and 0.8 The skin cleanser composition as described in any one of said <1>-<13> whose following is preferable, 0.6 or less is more preferable, and 0.4 or less is more preferable.

<15> The mass ratio (B)/(C) of the component (B) to the component (C) is preferably 3.5 or more, more preferably 4 or more, still more preferably 4.5 or more, and 15 The skin cleanser composition according to any one of the above <1> to <14>, wherein the following are preferable, 13 or less are more preferable, and 11 or less are more preferable.

<16> The above-mentioned <1> to <15>, wherein the polyhydric alcohol of the component (D) contains one or two or more selected from (D1) dihydric alcohol and (D2) trihydric or higher alcohol. The skin cleanser composition described in any one of the above.

<17> (D1) The dihydric alcohol preferably contains one or two or more selected from ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol and 1,3-butylene glycol, and at least The skin cleanser composition according to the above <16>, which preferably contains 1,3-butylene glycol.

<18> (D2) The trivalent or higher alcohol preferably contains one or two or more selected from glycerin, diglycerin, sorbitol, malbitol and polyoxyethylene methyl glucoside, and is glycerin, diglycerin, sorbitol And more preferably one or two or more selected from malbitol, more preferably one or two selected from glycerin and diglycerin, and more preferably comprising at least glycerin. The skin cleanser composition as described in <16> or <17>.

<19> Component (D) preferably contains (D1) divalent alcohol and (D2) trivalent or higher alcohol, preferably, the total amount of component (D) ((D1) + (D2) The content ratio [(D2)/((D1) + (D2))] of the component (D2) to) is preferably 0.6 or more, more preferably 0.7 or more, still more preferably 0.8 or more, and 0.98 The skin cleanser composition as described in any one of said <1>-<18> which is preferable below, and more preferably 0.95 or less.

<20> Of component (D), Preferably, it contains 60 mass% or more of component (D2), 70 mass% or more is more preferable, 80 mass% or more is more preferable, and 95 mass% or less Preferred skin cleanser composition according to <19> above.

<21> The skin cleanser composition according to any one of <1> to <20>, which preferably contains 60% by mass or more and 75% by mass or more of glycerin in the polyhydric alcohol of the component (D). .

The content of the <22> component (D) in the skin cleanser composition is preferably 40 mass% or more, more preferably 42 mass% or more, still more preferably 45 mass% or more, and further 60 mass% or less The skin cleanser composition as described in any one of said <1>-<21> which is preferable, 58 mass% or less is more preferable, and 55 mass% or less is more preferable.

<23> In the nonionic surfactant of component (E), the HLB of the mixed surfactant composed of one type of nonionic surfactant or two or more types of nonionic surfactant is preferably 9.5 or more, 10.5 or more are more preferable, 11 or more are more preferable, 14 or less are preferable, 13.5 or less are more preferable, and 13 or less are more preferable The skin cleanser composition in any one of said <1>-<22>. .

<24> The nonionic surfactant of component (E) is preferably glycerin fatty acid ester, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbitic fatty acid ester, (poly )Alkyl glyceryl ether, polyoxyethylene alkyl ether, sucrose fatty acid esters and one or two or more selected from alkyl polyglucosides, one or two or more selected from glycerin fatty acid esters and polyglycerin fatty acid esters The skin cleanser composition according to any one of <1> to <23>, which is more preferably included.

<25> The nonionic surfactant of the component (E) is preferably polyglyceryl myristate-10 (HLB:15), glyceryl stearate (HLB:9), glyceryl monocaprylate ( HLB: 7.2), one selected from glyceryl monocaprate (HLB: 6.5), polyglyceryl laurate (HLB: 15.5) and polyglyceryl-4 lauryl ether (HLB: 12.3), or The skin cleanser composition as described in any one of said <1>-<24> containing 2 or more types.

<26> The non-ionic surfactants of component (E) are preferably used in combination of two or more types of non-ionic surfactants having a high HLB and non-ionic surfactants having a low HLB; The skin cleanser composition as described in any one of 25>.

It is preferable to use the nonionic surfactant of <27> component (E) in combination of 1 or more types of nonionic surfactants of HLB 10 or more and 1 or more types of nonionic surfactants of HLB 10 or less. , Skin according to any one of the above <1> to <26>, wherein it is more preferable to combine one or more of HLB 12 or more nonionic surfactants and one or more of HLB 6 or more and 9.5 or less nonionic surfactants. Cleanser composition.

The content of the <28> component (E) in the skin cleanser composition is preferably 1 mass% or more, more preferably 2 mass% or more, further preferably 4 mass% or more, and further 12 mass% or less. The skin cleanser composition as described in any one of said <1>-<27> which is preferable, 10 mass% or less is more preferable, and 8 mass% or less is more preferable.

<29> The skin cleanser composition as described in any one of <1> to <28>, which further contains (F) a cationic polymer.

<30> The skin cleaning composition according to the above <29>, wherein the cationic polymer of the component (F) preferably has a cationic charge density of 2 meq/g or more, and more preferably 3 to 7 meq/g.

<31> The cationic polymer of component (F) is preferably a homopolymer of dimethyldiallylammonium chloride, a copolymer of dimethyldiallylammonium chloride and acrylic acid, a copolymer of dimethyldiallylammonium chloride and acrylamide, poly Methacryloyl oxyethyl trimethylammonium chloride and one or two or more selected from copolymers of methylvinylimidazolium chloride and vinylpyrrolidone, a homopolymer of dimethyldiallylammonium chloride, dimethyldiallyl The skin cleanser composition as described in <29> or <30> above, which further preferably contains one or two or more selected from a copolymer of ammonium chloride and acrylic acid and a copolymer of dimethyldiallylammonium chloride and acrylamide.

The content of the <32> component (F) in the skin cleanser composition is preferably 0.001 mass% or more, more preferably 0.005 mass% or more, still more preferably 0.01 mass% or more, and also 0.3 mass% or less The skin cleanser composition as described in any one of said <29>-<31> which is preferable, 0.2 mass% or less is more preferable, and 0.1 mass% or less is more preferable.

(33) (G) The content of water in the skin cleanser composition is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, and still more preferably 30% by mass or less. The skin cleanser composition according to any one of the above <1> to <32>, more preferably 28% by mass or less, and even more preferably 25% by mass or less.

<34> The content of the oily component in the skin cleanser composition is preferably 3% by mass or less, more preferably 2% by mass or less, more preferably 1% by mass or less, and even more preferably 0.5% by mass or less. The skin cleanser composition as described in any one of 1>-<33>.

<35> further contains anionic surfactants other than component (B) and component (C), the content of which is preferably 30 mass with respect to the total amount of content of component (B) and component (C) <1 above, less than 15%, more preferably less than 15% by mass, even more preferably less than 10% by mass, more preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 1% by mass or less. The skin cleanser composition as described in any one of >-<34>.

<36> It further contains a cationic surfactant and/or amphoteric surfactant, and the content in the skin cleaning composition is preferably 5% by mass or less, more preferably 3% by mass or less, and 1% by mass The skin cleanser composition according to any one of the above <1> to <35>, more preferably 0.5 mass% or less.

The skin cleanser composition as described in any one of said <1>-<36> manufactured by the method containing <37> the following process 1, process 2, process 3, and process 4.

Step 1: The step of sequentially adding and mixing the component (A), component (D), component (G), and other optional components.

Step 2: A step of sequentially adding and mixing components (B), (C), (E), and other optional surfactant components as necessary.

Step 3: The preparation of step 2 is added to the preparation of step 1, and is heated and mixed uniformly in the range of 70 to 90°C.

Step 4: a step of cooling the preparation of step 3 and cooling it to a range of 20 to 35°C.

<38> The manufacturing method of the skin cleanser composition in any one of said <1>-<36> containing the following process 1, process 2, process 3, and process 4.

Step 1: The step of sequentially adding and mixing the component (A), component (D), component (G), pH adjusting agent, and other optional components.

Step 2: The step of sequentially adding and mixing the component (B), component (C), component (E), and other optional surfactant components.

Step 3: The preparation of step 2 is added to the preparation of step 1, and is heated and mixed uniformly in the range of 70 to 90°C.

Step 4: When the preparation of step 3 is cooled, when the preparation of step 3 is cooled in the range of 40 to 55°C, a predetermined amount of component (F) is added and mixed, and further cooled to the range of 20 to 35°C Prescribing process.

<39> pH is preferably 4 or more, 5 or more are more preferable, 5.5 or more are more preferable, 6 or more are more preferable, 7.5 or less are preferred, 7.2 or less are more preferred, 7 The skin cleanser composition as described in any one of said <1>-<37> which is more preferable below.

<40> The skin cleanser composition according to any one of <1> to <37> and <39>, which is a hand cleanser, face wash, cleansing agent, body soap or scalp cleaner.

<41> The above <1> to <37>, <39, preferably having a viscosity at 25° C. of 10000 mPa·s or more, and more preferably 800000 mPa·s or less, preferably as a cream or paste. > The skin cleanser composition as described in any one of <40>.

<42> The skin cleanser composition according to any one of <1> to <37> and <39> to <41>, which is used by being filled in a tube container.

Example

Examples 1-13 and Comparative Examples 1-11

Skin cleanser compositions having the compositions shown in Tables 1 to 2 were prepared.

The obtained skin cleanser composition was evaluated for aging stability, quick foaming, foaming amount, fineness of foam, and moistness after washing. The results are shown in Tables 1 to 2 together.

(Manufacturing method)

Step 1: Components 1, 7, 8, 14, and 15 are mixed and stirred and mixed uniformly.

Step 2: Components 2 to 6 and 9 to 12 are mixed and uniformly stirred and mixed.

Step 3: The preparation of step 2 is added to the preparation of step 1, heated to 80°C, and uniformly stirred and mixed.

Step 4: The preparation of step 3 was cooled, and when the preparation of step 3 reached 50°C, component 13 was added, stirred and mixed uniformly, and cooled to 30°C to obtain a skin cleanser composition.

(Assessment Methods)

(1) Kyungil stability (25 ℃, 45 ℃):

Each skin cleanser composition was sealed in a 50 ml transparent glass container, stored in a constant temperature bath at 25°C or 45°C for 3 months, and then evaluated based on the following criteria by visual judgment.

5: No change in appearance was observed.

4: Very little oil floating is observed on the surface.

3: A clear oil float is observed on the surface.

2: Partial separation is confirmed.

1: The overall separation is confirmed.

(2) Sokposeong:

0.5 g of each skin cleanser composition was dissolved in water to prepare a 10% by mass aqueous solution, and stirred (1500 rpm) for 10 seconds using a magnetic stirrer (REXIM RP-1A, manufactured by As One) to form bubbles. The volume of the formed foam was measured and evaluated according to the following criteria.

5: The volume of the foam is 25 ml or more.

4: The volume of the foam is 20 ml or more and less than 25 ml.

3: The volume of the foam is 15 ml or more and less than 20 ml.

2: The volume of the foam is 10 ml or more and less than 15 ml.

1: The volume of the foam is less than 10 ml.

(3) Foam amount:

0.5 g of each skin cleanser composition was dissolved in water to prepare a 10% by mass aqueous solution, and stirred (1500 rpm) for 1 minute using a magnetic stirrer (REXIM RP-1A, manufactured by As One) to form bubbles. The volume of the formed foam was measured and evaluated according to the following criteria.

5: The volume of the foam is 40 ml or more.

4: The volume of the foam is 35 ml or more and less than 40 ml.

3: The volume of the foam is 30 ml or more and less than 35 ml.

2: The volume of the foam is 25 ml or more and less than 30 ml.

1: The volume of the foam is less than 25 ml.

(4) Foam fineness:

0.5 g of each skin cleanser composition was dissolved in water to prepare a 10 mass% aqueous solution, and stirred (1500 rpm) for 1 minute using a magnetic stirrer (REXIM RP-1A, manufactured by As One) to form bubbles. Thereafter, the appropriate amount of foam was transferred onto the cover plate, preparat was placed, and the size of the foam was observed with an optical microscope (100 times). The size of the bubble was evaluated by the following criteria, with respect to 10 bubbles in any field of view, the average value of the lengths of the major axis and the minor axis of the bubble as the size of the bubble. The smaller the size of the bubbles, the finer the bubbles.

5: The average value of bubbles was less than 150 µm.

4: The average value of bubbles was 150 µm or more and less than 200 µm.

3: The average value of the bubbles is 200 µm or more and less than 250 µm.

2: The average value of bubbles was 250 µm or more and less than 300 µm.

1: The average value of bubbles was 300 µm or more.

(5) Moist after cleaning:

Five professional panelists were asked to wash their face using each skin cleanser composition, and after 10 minutes of washing, the "moist after washing" was evaluated according to the following criteria. The results were expressed as the average point (rounded the first position of the decimal point).

5: Very good.

4: Good.

3: Neither can be said.

2: Bad.

1: Very bad.

Hereinafter, the components used in Examples, Comparative Examples and Prescription Examples will be described.

*1: STRUCTURE XL (manufactured by Akzo Nobel),

*2: Amylite GCK-11 (manufactured by Ajinomoto),

*3: Amisoft CT-12 (manufactured by Ajinomoto),

*4: Cosmetic soap CK-4N (manufactured by Miyoshi Yuji Co., Ltd.),

*5: PLANTAPON SUS (manufactured by BASF),

*6: S Face M-1001 (manufactured by Sakamoto Pharmaceutical Industries),

*7: Montex S (manufactured by Miyoshi Yuji),

*8: Sunsoft NO, 700H (manufactured by Taiyo Chemical Co., Ltd.),

*9: Sunsoft No.760H (manufactured by Taiyo Chemical Co., Ltd.),

*10: Quart 550PR (manufactured by Lubrizol Advanced Materials) (real content 9%)

*11: Fermented soymilk (manufactured by Sansho Pharmaceutical Co., Ltd.)

*12: TONISKIN (manufactured by Silab)

*13: Snow Extract BG70 (manufactured by Maruzen Pharmaceuticals)

*14: Dang Mook extract BG (manufactured by Maruzen Pharmaceuticals)

*15: LanaChris 2B (manufactured by Lucas Meyer Cosmetics)

*16: Nephchigen N (manufactured by Ichimaru Parcos)

*17: LIPIDURE-PMB (manufactured by Nichiyu)

*18: Salvia extract BG-J (manufactured by Maruzen Pharmaceuticals)

*19: Dermis extract K65B (manufactured by Nichiyu)

*20: Falco Rex Governor (manufactured by Ichimaru Parcos)

*21: Bitter grass extract-S (manufactured by Maruzen Pharmaceuticals)

*22: Falco Rex Sancho (manufactured by Maruzen Pharmaceuticals)

*23: Osbeckia Chinensis Extract BG70 (manufactured by Maruzen Pharmaceuticals)

*24: Watercress KB (made by Silab)

*25: Silk Protein N (manufactured by Ichimaru Parcos)

Hereinafter, in the same manner as in Examples, a skin cleanser composition having the composition shown below was prepared.

Prescription Example 1 (face wash) Content (mass%)

Hydroxypropyl starch phosphate (*1) 1.0

Cocoyl glycine potassium (*2) 20.5

Disodium lauryl sulfosuccinate (*5) 3.0

Concentrated glycerin 46.0

1,3-butylene glycol 5.0

Polyglyceryl myristate-10 (*6) 3.0

Glyceryl stearate (*7) 2.3

Polyquaternium-7 (*10) 0.5

Citric acid 2.0

Soymilk fermentation extract (*11) 0.01

Yeast extract (*12) 0.01

Centella extract (*13) 0.01

Tangerine extract (*14) 0.01

Christenroom Indicum Extract: (*15) 0.01

Water soluble collagen (*16) 0.01

water Balance

Prescription Example 2 (face wash) Content (mass%)

Hydroxypropyl starch phosphate (*1) 1.0

Cocoyl glycine potassium (*2) 15.5

Cocoyl glutamate triethanolamine (*3) 5.0

Disodium lauryl sulfosuccinate (*5) 3.0

Concentrated glycerin 42.0

1,3-butylene glycol 5.0

Polyglyceryl myristate-10 (*6) 3.0

Glyceryl stearate (*7) 2.3

Polyquaternium-7 (*10) 0.5

Citric acid 0.2

Polyquaternium-51 (*17) 0.01

Sage Leaf Extract (*18) 0.01

Tangerine peel extract (*19) 0.01

Guernsey Root Extract (*20) 0.01

Early New Year Extract (*21) 0.01

Sancho rind extract (*22) 0.01

Extract than Aegino (*23) 0.01

water Balance

Prescription Example 3 (face wash) Content (mass%)

Hydroxypropyl starch phosphate (*1) 1.5

Cocoyl glycine potassium (*2) 18.0

Disodium lauryl sulfosuccinate (*5) 3.0

Concentrated glycerin 40.0

1,3-butylene glycol 5.0

Polyglyceryl myristate-10 (*6) 3.0

Glyceryl stearate (*7) 2.3

Polyquaternium-7 (*10) 0.5

Citric acid 0.18

Watercress extract (*24) 0.01

Polyquaternium-51 (*17) 0.01

Hydrolyzed silk (*25) 0.01

Sage Leaf Extract (*18) 0.01

Early New Year Extract (*21) 0.01

Extract than Aegino (*23) 0.01

Glycine 0.001

Proline 0.001

Alanine 0.001

water Balance

All of the obtained skin cleanser compositions were excellent in high temperature stability, fast foaming, large amount of foam, fineness of foam, excellent foaming properties, and finished with a moist texture after washing.

Claims (5)

A skin cleanser composition comprising the following components (A), (B), (C), (D) and (E), wherein the content of the component (D) in the composition is 35 to 62% by mass.
(A) A crosslinked product of 2 to 5 hydroxyalkyl modified starches crosslinked, a crosslinked product of 2 to 5 hydroxyalkyl modified starches and an acyl modified starch having 2 to 18 carbon atoms, and a crosslinked product of 2 to 18 carbon atoms. At least one crosslinked material selected from crosslinked crosslinked acyl-modified starches,
(B) N-acylamino acid salt,
(C) polyoxyethylene alkyl sulfosuccinate and/or alkyl sulfosuccinate,
(D) polyhydric alcohol,
(E) HLB 9 to 14.5 nonionic surfactant According to claim 1,
(F) A skin cleanser composition containing a cationic polymer. The method of claim 1 or 2,
The skin cleanser composition whose mass ratio (A)/(C) of the component (A) to the component (C) is 0.1 to 0.8. The method according to any one of claims 1 to 3,
The skin cleanser composition whose mass ratio (B)/(C) of the component (B) to the component (C) is 4 to 15. The method according to any one of claims 1 to 4,
A skin cleanser composition containing 60% by mass or more of glycerin in the polyhydric alcohol of component (D).