JP2008056608A - Cleansing agent composition for skin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleansing agent composition for skin having excellent foaming properties and cleansing performance, excellent in rinsability, having no stretching feeling of the skin after cleansing, and imparting moist feeling with suppressing sliminess and stickiness. <P>SOLUTION: The cleansing agent composition for skin comprises (A) an amidopropyl betaine type amphoteric surfactant and/or an aminoacetic acid betaine type amphoteric surfactant, (B) a higher fatty acid salt, (C) an ethylene oxide-added fatty acid ester and (D) a cationic high molecular compound. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a skin cleansing composition.

  Higher fatty acid salts are frequently used in skin cleansing agents such as body shampoos and facial cleansers because of their excellent detergency and refreshing feel. However, when a higher fatty acid salt is added in a high amount, there is a problem that a feeling of tightness or rough skin after washing occurs due to excessive degreasing.

  In order to solve the feeling of tension after washing, it is conceivable to suppress the blending amount of the higher fatty acid salt or to blend a moisturizing component such as a polyhydric alcohol at a high concentration. However, if the blending amount of the higher fatty acid salt is set to a low blending amount, excellent detergency cannot be obtained. If the blending amount of the polyhydric alcohol is set to a high blending amount, use such as foaming properties, rinsing properties, stickiness after use, and stickiness There is a disadvantage that it is inferior in feeling and texture.

  In order to solve such problems, a creamy skin cleanser containing a specific higher fatty acid salt (see, for example, Patent Document 1), a higher fatty acid, a sugar-based anionic surfactant, and an N-acyl amino acid salt And a detergent composition containing a phosphate-based amphoteric surfactant (see, for example, Patent Document 2), and a skin cleanser composition containing a higher fatty acid salt, a polyamide-modified silicone, and an ester oil (eg, a patent) Reference 3) is proposed.

  However, even though these attempts can improve the feeling of tension after washing, the washing power and rinsing properties are still unsatisfactory. In addition, the feeling of use and texture, such as stickiness and stickiness after use, are still unsatisfactory.

Japanese Patent Laid-Open No. 10-182419 Japanese Patent Laid-Open No. 7-18293 JP 2005-281190 A

  The present invention has been made in view of the above-described conventional technology, has excellent foaming properties and detergency unique to higher fatty acid salts, has excellent rinsing properties, and does not have a feeling of firmness after washing, An object of the present invention is to provide a composition for a skin cleanser that suppresses the stickiness and stickiness and gives a moist and moist feel.

That is, the present invention
[1] (A) Amidopropyl betaine-type amphoteric surfactant and / or aminoacetic acid betaine-type amphoteric surfactant, (B) higher fatty acid salt, (C) ethylene oxide-added fatty acid ester, and (D) highly cationic A composition for skin cleanser comprising a molecule,
[2] The skin cleansing composition according to [1], wherein the component (C) is polyethylene glycol monostearate and / or polyethylene glycol distearate, and [3] the component (D) is dimethyl chloride. The skin cleansing composition according to the above [1] or [2], which is a diallylammonium / acrylamide copolymer and / or a vinylpyrrolidone / dimethylaminopropylmethacrylamide / lauryldimethylaminopropylmethacrylamide chloride copolymer.

  The composition for skin cleanser of the present invention has excellent foaming properties and detergency, has an effect of excellent rinsing properties, and does not have the feeling of firmness of the skin after washing, which is characteristic of higher fatty acid salts. It has an excellent effect of giving a moist and moist feel.

  The composition for skin cleanser of the present invention comprises (A) an amidopropyl betaine-type amphoteric surfactant and / or aminoacetic acid betaine-type amphoteric surfactant, (B) a higher fatty acid salt, (C) an ethylene oxide-added fatty acid ester, And (D) a cationic polymer.

  Specific examples of the component (A) amidopropyl betaine amphoteric surfactant include coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, and ricinoleic acid amidopropyl betaine. be able to. Specific examples of aminoacetic acid betaine amphoteric surfactants include lauryl dimethylaminoacetic acid betaine, coconut oil alkyldimethylaminoacetic acid betaine, stearyldimethylaminoacetic acid betaine, stearyl dihydroxyethyl betaine, and the like. These components may be used alone or in appropriate combination of two or more. As a suitable component (A), it is preferable to use lauric acid amide propyl betaine and lauryl dimethylamino acetic acid betaine from a viewpoint of detergency, foaming power, and foam persistence.

  The content of the component (A) is not particularly limited as long as the desired effect is imparted, but usually 0.05% by weight or more is preferable in the composition from the viewpoint of detergency and foaming power. Preferably it is 0.1 weight% or more. Moreover, from a viewpoint of suppressing a sticky feeling and skin irritation, 5 weight% or less is preferable, More preferably, it is 3 weight% or less. From these viewpoints, the content of the component (A) is preferably 0.05 to 5% by weight, more preferably 0.1 to 3% by weight.

  In addition, a commercial item can also be used for the said (A) component. Commercially available products of lauric acid amidopropyl betaine include, for example, Aforex LB-2 (trade name, manufactured by Miyoshi Oil & Fats Co., Ltd.), Ricavion B-300 (trade name, manufactured by Shin Nippon Chemical Co., Ltd.), Softazoline LPB (trade name, River For example, manufactured by Ken Fine Chemical Co., Ltd.). Moreover, as a commercial item of lauryl dimethylamino acetic acid betaine, for example, ovazoline LB-SF (trade name, manufactured by Toho Chemical Industry Co., Ltd.), Amhitor 20BS (trade name, manufactured by Kao Corp.), Rikabion A-100 (trade name, new) Nippon Rika Co., Ltd.) can be exemplified.

  Examples of fatty acids constituting the higher fatty acid salt of component (B) include higher fatty acids having 12 to 22 carbon atoms such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, and behenic acid; olive oil, coconut oil, Examples thereof include vegetable oils such as palm oil and cottonseed oil; animal oils such as fish oil and beef tallow. These components may be used alone or in appropriate combination of two or more. As a suitable (B) component, it is preferable to use a C12-C22 higher fatty acid from a viewpoint of detergency and foaming power, and lauric acid, myristic acid, palmitic acid, and stearic acid are used more preferably.

  Examples of the salt of the higher fatty acid salt as the component (B) include alkali metal salts and organic amine salts obtained by saponifying or neutralizing higher fatty acids with an alkali agent. Examples of the alkali agent used include inorganic alkalis such as sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate; organic alkalis such as monoethanolamine, diethanolamine, triethanolamine, trimethylamine and triethylamine. As the alkali agent to be used, it is preferable to use sodium hydroxide or potassium hydroxide from the viewpoint of easy availability of materials and easy handling.

  In order to contain the higher fatty acid salt in the composition for skin cleansing agent of the present invention, the higher fatty acid and the alkaline agent may be blended in advance as a higher fatty acid salt, or the higher fatty acid and the alkaline agent may be blended. It may be a higher fatty acid salt in the composition.

  The content of the component (B) is not particularly limited as long as a desired effect is imparted, but usually 5% by weight or more is preferable as a higher fatty acid in the composition from the viewpoint of detergency and foaming power. More preferably, it is 10% by weight or more. Moreover, from a viewpoint of suppressing skin irritation and a feeling of tension, it is preferably 35% by weight or less, more preferably 30% by weight or less. From these viewpoints, the content of the component (B) is preferably 5 to 35% by weight, more preferably 10 to 30% by weight.

  (C) Fatty acid ester of a component has an ethylene oxide condensation part in an ester part. Examples of such fatty acid esters include fatty acid polyethylene glycol, fatty acid polyoxyethylene alkyl ether, fatty acid polyoxyethylene glycerin, fatty acid polyoxyethylene sorbitan, fatty acid polyoxyethylene sorbite, and the like. Of these, esters of fatty acids are preferably used.

  Specific examples of the fatty acid polyethylene glycol include polyethylene glycol monolaurate, polyethylene glycol monopalmitate, polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol distearate and the like. Specific examples of fatty acid polyoxyethylene alkyl ethers include stearic acid polyoxyethylene cetyl ether, stearic acid polyoxyethylene stearyl ether, and the like. Specific examples of the fatty acid polyoxyethylene glycerin include, for example, polyoxyethylene glyceryl monomyristate, polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, polyoxyethylene glyceryl triisostearate and the like. it can. Specific examples of the fatty acid polyoxyethylene sorbitan include, for example, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene trioleate Examples include sorbitan, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan triisostearate, and the like. Specific examples of the fatty acid polyoxyethylene sorbit include, for example, polyoxyethylene sorbite monolaurate, polyoxyethylene sorbite tetraoleate, polyoxyethylene sorbitol tetrastearate, polyoxyethylene sorbitol hexastearate, polyoxyethylene sorbit beeswax, etc. Can be illustrated. These components may be used alone or in appropriate combination of two or more.

  As a suitable component (C), fatty acid polyethylene glycol, fatty acid polyoxyethylene glycerin, and fatty acid polyoxyethylene sorbit are preferably used, and fatty acid polyethylene glycol is more preferably used. In addition, in the skin cleansing composition of the present invention, polyethylene glycol monostearate and polyethylene glycol distearate are particularly preferably used from the viewpoint of suppressing a feeling of tension and giving a moist and moist feel.

  Moreover, 50-300 are preferable and, as for the addition mole number of the ethylene oxide of (C) component, 100-250 are more preferable. The reason is that when the added mole number of ethylene oxide is less than 50, it is inferior in use feeling such as a feeling of stickiness after use, and when the added mole number exceeds 300, the composition becomes too hard to be familiar with water. It is because it is inferior and is not preferable.

  The content of the component (C) is not particularly limited as long as a desired effect is imparted, but usually, 1% by weight or more in the composition from the viewpoint of imparting a moist and moist feel while suppressing the feeling of being sticky. Is more preferable, and more preferably 3% by weight or more. Further, from the viewpoint of suppressing deterioration of rinsability and stickiness, it is preferably 10% by weight or less, more preferably 8% by weight or less. From these viewpoints, the content of the component (C) is preferably 1 to 10% by weight, more preferably 3 to 8% by weight.

  In addition, a commercial item can also be used for the said (C) component. Examples of commercially available polyethylene glycol monostearate include Emanon 3199 (trade name, manufactured by Kao Corporation; 140E.O.), Emanon 3199V (trade name, manufactured by Kao Corporation; 150E.O.), and the like. it can. Examples of commercially available products of polyethylene glycol distearate include CDS6000P (trade name, manufactured by Nikko Chemicals; 150E.O.), Emanon 3299 (trade name, manufactured by Kao; 250E.O.), and the like. Can do. E.E. O. Represents the number of moles of ethylene oxide added.

  Specific examples of the cationic polymer of component (D) include, for example, quaternary nitrogen-containing cellulose derivatives such as glycidyltrimethylammonium chloride / hydroxyethylcellulose chloride, diallyldimethylammonium chloride / hydroxyethylcellulose; hydroxypropyltrimethylammonium chloride / guam gum Quaternary nitrogen-containing guar gum derivatives such as: diallyl quaternary ammonium salt polymer such as homopolymer of dimethyldiacrylammonium chloride; diallyl quaternary ammonium salt / acrylamide copolymer such as dimethyldiallylammonium chloride / acrylamide copolymer Quaternized derivative with vinylpyrrolidone / dimethylaminomethacrylate copolymer and dimethyl sulfate, vinylpyrrolidone / dimethylaminopropylmethacrylamide The like can be exemplified adipate, dimethylaminohydroxypropyl ethylene triamine copolymer; quaternized vinylpyrrolidone derivatives such as Lil dimethylaminopropylmethacrylamide chloride copolymer. These components may be used alone or in appropriate combination of two or more. As the preferred component (D), dimethyldiallylammonium chloride / acrylamide copolymer, vinylpyrrolidone / dimethylaminopropyl methacrylamide / lauryl dimethylaminopropyl methacrylamide are used from the viewpoint of giving a moist and moist feeling while suppressing the tension. It is preferable to use a chloride copolymer.

  The content of the component (D) is not particularly limited as long as a desired effect is imparted, but usually 0.05% by weight in the composition from the viewpoint of imparting a moist and moist feel while suppressing the feeling of stickiness. % Or more is preferable, and more preferably 0.1% by weight or more. Moreover, from a viewpoint of suppressing a sticky feeling, 3 weight% or less is preferable, More preferably, it is 2 weight% or less. From these viewpoints, the content of the component (D) is preferably 0.05 to 3% by weight, more preferably 0.1 to 2% by weight.

  In addition, a commercial item can also be used for the said (D) component. Examples of commercially available products of dimethyldiallylammonium chloride / acrylamide copolymer include Lipoflow (trade name, manufactured by Lion Corporation), Marquat 550 (trade name, manufactured by Calgon Corporation), and the like. Examples of commercially available vinylpyrrolidone / dimethylaminopropylmethacrylamide / lauryldimethylaminopropylmethacrylamide chloride copolymers include STYLEZE W-20 and W-10 (trade names, both manufactured by ISP). can do.

  In addition, the composition for skin cleanser of the present invention can contain a copolymer composed of an alkyl acrylate monomer in order to adjust the composition to a semi-solid hardness. Examples of such copolymers include methacrylic acid / ethyl acrylate / butyl acrylate copolymer, ethyl acrylate / methyl methacrylate copolymer, ethyl acrylate / ethyl methacrylate / acrylic acid copolymer, Examples include butyl acrylate / ethyl methacrylate copolymer, octyl acrylate / styrene copolymer, octyl acrylate / vinyl acetate copolymer, sodium acrylate alkyl acrylate / sodium methacrylate / alkyl methacrylate copolymer, etc. can do. These components may be used alone or in appropriate combination of two or more. Suitable copolymers of alkyl acrylate monomers include methacrylic acid / alkyl acrylate copolymers such as methacrylic acid / ethyl acrylate / butyl acrylate copolymer, sodium acrylate alkyl acrylate / methacrylic acid, and the like. It is preferable to use a sodium acrylate copolymer such as sodium acrylate / alkyl methacrylate copolymer. The semi-solid state refers to a paste state having no fluidity.

  The content of the copolymer composed of an alkyl acrylate monomer is not particularly limited, but is usually preferably 0.01% by weight or more, more preferably 0.1% from the viewpoint of adjusting to a semisolid state. % By weight or more. Moreover, 3 weight% or less is preferable from a viewpoint of suppressing the deterioration of the usability | use_condition by the composition becoming hard too much, More preferably, it is 2 weight% or less. From these viewpoints, the content of the copolymer composed of the alkyl acrylate monomer is preferably 0.01 to 3% by weight, more preferably 0.1 to 2% by weight.

  In addition, the copolymer comprised from the said alkyl acrylate monomer can also use a commercial item. Examples of commercially available methacrylic acid / alkyl acrylate copolymers include Rheal MS-100 and MS-200 (trade names, both manufactured by Lion Corporation), which are methacrylic acid / ethyl acrylate / butyl acrylate copolymers. It can be illustrated. Commercially available sodium acrylate copolymers include sodium acrylate alkyl acrylate / sodium methacrylate / alkyl methacrylate copolymer SALCARE SC91 and SALCARE AST (trade names, both of which are Ciba Specialty Chemicals). For example).

  Furthermore, the composition for skin cleanser of the present invention can contain a polyhydric alcohol in order to improve the moist and moist feel after use and to maintain the effect. Specific examples of the polyhydric alcohol are not particularly limited as long as they can be used as cosmetic raw materials. For example, ethylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, 1,3-butylene glycol, glycerin, concentrated glycerin. , Diglycerin, triglycerin, glucose, maltose, maltitol, sucrose, mannitol, sorbitol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, and the like. These components may be used alone or in appropriate combination of two or more. As a suitable polyhydric alcohol, it is preferable to use polyethylene glycol, glycerin, or concentrated glycerin.

  The content of the polyhydric alcohol is not particularly limited, but usually, 10% by weight or more is preferable in the composition, more preferably, from the viewpoint of imparting a moist and moist feeling while suppressing the feeling of tension and maintaining the effect. 15% by weight or more. Moreover, from a viewpoint of suppressing a sticky feeling, 50 weight% or less is preferable, More preferably, it is 40 weight% or less. From these viewpoints, the content of the polyhydric alcohol is preferably 10 to 50% by weight, more preferably 15 to 40% by weight.

  In the composition for skin cleanser according to the present invention, as long as the effects of the present invention are not impaired, in addition to the components described above, drugs such as silicones, glycyrrhizin, allantoin, triclosan, vitamins, animals, and the like A plant extract, a pearling agent, a coloring agent, a scrub agent, various fragrances, preservatives and the like may be appropriately blended depending on the purpose.

  In addition, the composition for skin cleansing agents of this invention can be manufactured by a conventional method, and can be used as skin cleansing agents, such as a facial cleanser, a body soap, and a hand soap. Especially, since it is excellent in detergency and can give a moist and moist feeling without a feeling of being stiff, it can be suitably used as a facial cleanser.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to these Examples. The blending amount represents “% by weight” unless otherwise specified.

(Sample preparation)
According to the composition described in Table 1 and Table 2, the compositions for Examples 1-6 and Comparative Examples 1-4 were prepared for the following evaluation tests. The results are shown in Table 1 and Table 2, respectively.

(Test Example 1: Evaluation of functionality)
By 20 professional panels, the composition for skin cleanser obtained in each example and each comparative example was actually used in the form of a facial cleanser. About the foaming at the time of facial cleansing, removal of sebum stains and rinsing properties, Evaluation was performed according to the following evaluation criteria.

<Evaluation criteria for foamability>
A: Reply if 16 or more out of 20 people are excellent in foaming ability ○: Reply if 11-15 out of 20 people are excellent in foaming ability Δ: Reply if 6-10 out of 20 people are excellent in foaming ability ×: 5 or less out of 20 responded that they have excellent foaming properties

<Evaluation criteria for removal of sebum dirt>
◎: More than 16 out of 20 people feel that sebum dirt has been removed ○: 11 to 15 out of 20 people feel that sebum dirt has been removed Δ: 6-10 out of 20 people feel sebum Answer that there is a feeling that dirt has been removed ×: 5 or less of 20 people answered that there is a feeling that sebum dirt has been removed

<Evaluation criteria for rinsing properties>
◎: More than 16 out of 20 responded that it was excellent in washing off without stickiness. ○: 11-15 out of 20 responded that it was excellent in washing off without stickiness. Responds that it is excellent in washing off ×: 5 or less of 20 respondents say that it is excellent in washing off smoothly

(Test Example 2: Evaluation of texture)
Twenty expert panels evaluated the feeling of skin tightness, stickiness and moist and moist feeling after evaluation in Test Example 1 in accordance with the following evaluation criteria.

<Evaluation criteria for the sense of tension>
◎: 16 or more out of 20 responded that they did not feel tight ○: 11 to 15 out of 20 responded that they did not feel sticky △: 6-10 out of 20 responded that they did not feel sticky ×: 20 Less than 5 of the names answered that there was no feeling

<Evaluation criteria for stickiness>
A: Reply if 16 or more out of 20 people did not feel sticky ○: Reply if 11-15 people out of 20 did not feel sticky Δ: Reply if 6-10 out of 20 people did not feel sticky ×: 20 Less than 5 people answered that there was no stickiness

<Evaluation criteria for moist and moist feeling>
◎: More than 16 out of 20 people answered that they had a moist feel ○: 11-15 out of 20 people said that they had a moist feel △: 6-10 out of 20 people moistened ×: 5 or less out of 20 responded that they had a moist and moist feel

  From the results of Tables 1 and 2, the skin cleansing compositions of each example are superior in foaming properties, removal of sebum stains and rinsing properties in comparison with those of each comparative example. Thus, it can be seen that it has excellent functionality. Furthermore, since there is no feeling of firmness of the skin after washing | cleaning, the feeling of stickiness is suppressed and the moist and moist feeling is provided, it turns out that it has the outstanding texture.

Hereinafter, the formulation example of the composition for skin cleansing agents which concerns on this invention is shown. In addition, a compounding quantity is weight%.

(Prescription Example 1)
Lauric acid amidopropyl betaine solution (30%) 3.0
Lauric acid 5.5
Myristic acid 5.5
Palmitic acid 3.5
Stearic acid 9.0
Polyethylene glycol monostearate (150 EO) 5.0
Dimethyldiallylammonium chloride / acrylamide copolymer solution (10%) 8.0
Methacrylic acid / alkyl acrylate copolymer emulsion (25%) 2.0
Polyethylene glycol 10.0
Propylene glycol 4.0
Glycerin 10.0
Hydroxypropyl methylcellulose 0.6
Potassium hydroxide 5.0
Edetic acid salt Appropriate amount Extract from plant extract Appropriate amount
Purified water balance part Total 100.0

(Prescription example 2)
Lauryldimethylaminoacetic acid betaine solution (30%) 3.0
Lauric acid 5.0
Myristic acid 6.0
Palmitic acid 4.0
Stearic acid 9.0
Polyethylene glycol distearate (150 EO) 5.0
Vinylpyrrolidone / dimethylaminopropylmethacrylamide / lauryldimethylaminopropylmethacrylamide chloride copolymer liquid (10%) 10.0
Methacrylic acid / alkyl acrylate copolymer emulsion (25%) 2.0
Polyethylene glycol 20.0
Propylene glycol 3.0
Glycerin 8.0
Hydroxypropyl methylcellulose 0.5
Potassium hydroxide 5.0
Edetic acid salt Appropriate amount Extract from plant extract Appropriate amount
Purified water balance part Total 100.0

Claims (3)

  (A) Amidopropyl betaine type amphoteric surfactant and / or aminoacetic acid betaine type amphoteric surfactant, (B) higher fatty acid salt, (C) ethylene oxide addition fatty acid ester, and (D) cationic polymer A composition for skin cleanser.   The composition for skin cleanser according to claim 1, wherein the component (C) is polyethylene glycol monostearate and / or polyethylene glycol distearate. The skin cleansing according to claim 1 or 2, wherein the component (D) is a dimethyldiallylammonium chloride / acrylamide copolymer and / or a vinylpyrrolidone / dimethylaminopropylmethacrylamide / lauryldimethylaminopropylmethacrylamide chloride copolymer. Pharmaceutical composition.