JP2009221121A - Skin detergent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a skin detergent even having a sufficient pore-cleaning effect, having a refreshing wash out and without applying a load to the skin. <P>SOLUTION: This skin detergent is characterized by containing (A) an alcohol having ≤2 hydroxy groups, (B) glycerol, (C) an alcohol having ≥4 hydroxy groups, (D) water, and (E) a nonionic surfactant, and having the (20:1) to (2:1) ratio of the total content of the components (A), (B) and (C) to the content of the component (D), [(A)+(B)+(C)]:(D), and the (1:2) to (1:8) content ratio of the component (A) to the component (B), (A):(B). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a skin cleanser that can effectively clean pores and the like without imposing a burden on the skin.

  Today, there is an increasing need for pore cleaning. However, conventional detergents require high detergency and are formulated with scrubbing agents such as vegetable powders and substances that are highly irritating to the skin such as clay, powders, exothermic materials or anionic active agents. It has been developed (for example, Patent Document 1 and Patent Document 2). Therefore, there is a problem that people with sensitive skin to these substances and people with weak skin due to various environmental changes, etc., cause skin troubles by using these pore cleansing agents. In addition, in the case of detergents that have improved detergency by blending oils, it is necessary to wash the face with soap, etc., since the oily feeling remains after washing the face with water. There was also the problem of spending money.

Japanese Patent No. 3559070 Japanese Patent No. 3857182

  In the above circumstances, there has been a demand for a skin cleansing agent for pores that has a refreshing finish while having a sufficient pore cleaning effect and can be used safely even by people with sensitive skin. That is, an object of the present invention is to provide a skin cleanser that can effectively clean pores and the like without imposing a burden on the skin.

  In view of the above circumstances, the present inventors have intensively studied and completed the present invention. That is, the first present invention comprises (A) an alcohol having 2 or less hydroxyl groups, (B) glycerin, (C) an alcohol having 4 or more hydroxyl groups, (D) water, (E) a nonionic surfactant. A ratio of the total content of the components (A), (B) and (C) and the content of the component (D) [(A) + (B) + (C)]: (D) is in a skin cleanser characterized by being 20: 1 to 2: 1. The second aspect of the present invention is the above-described skin cleanser, wherein the ratio (A) :( B) of the content of the component (A) and the component (B) is 1: 2 to 1: 8. . The third aspect of the present invention is the above-described skin cleanser further comprising an enzyme. The fourth aspect of the present invention resides in the above skin cleansing agent, wherein the nonionic surfactant of (E) is a sucrose fatty acid ester. Furthermore, the fifth aspect of the present invention is the above skin cleansing material, which is a skin cleansing material for pore cleaning.

  The skin cleansing agent of the present invention has a sufficient pore cleaning effect and at the same time has a refreshing feeling of washing, and since it is not irritating and does not place a burden on the skin, it can be used safely even by people with sensitive skin can do.

Hereinafter, the configuration of the present invention will be described in detail. The component (A) used in the present invention is an alcohol having 2 or less hydroxyl groups, specifically 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,2- Butanediol, 1,3-butanediol, 2,3-butanediol, 1,4-butanediol, but-2-ene-1,4-diol, 1,2-pentanediol, 1,5-pentanediol, 1,2-hexanediol, 1,6-
Hexanediol, 1,10-decanediol, 1,2-dodecanediol, 1,12-dodecanediol, neopentyl glycol, 3-methylpentane-1,5-diol, 2,5-dimethyl-1,3-hexane Diol, 2,2,4-trimethyl-1,3-pentanediol, 1,2-cyclohexanediol, 1,4-cyclohexanediol, 1,4-bis (hydroxymethyl) cyclohexane, hydroxypivalic acid-neopentyl glycol Monoester, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, tetrapropylene glycol, polyethylene glycol, 3-thio-pentane-1,5-diol, methanol, ethanol, propano Le, butanol. Of these, 1,3-butanediol, dipropylene glycol, and propylene glycol are preferable from the viewpoint of skin irritation. The alcohol having 2 or less hydroxyl groups in the present invention can be used alone or in admixture of two or more.

  Component (C) of the present invention is an alcohol having 4 or more hydroxyl groups, and examples thereof include pentaerythritol, diglycerin, xylitol, glucose, sorbitol, mannitol, sucrose, and preferably diglycerin. These can be used alone or in admixture of two or more.

  Nonionic surfactants of component (E) used in the present invention include, for example, sucrose fatty acid ester, sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, pentaerythritol fatty acid ester, polyoxyethylene Sorbitan fatty acid ester, polyoxyethylene sorbit fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene phytosterol, polyoxyethylene phytostanol, polyoxyethylene polyoxypropylene alkyl ether, poly Oxyethylene alkyl phenyl ether, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor Oil, polyoxyethylene lanolin, polyoxyethylene lanolin alcohol, polyoxyethylene beeswax derivative, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, polyoxyethylene alkylphenyl formaldehyde condensate single chain length polyoxyethylene alkyl ether, alkyl A glucoside, polyoxyethylene alkyl glucoside, polyether modified silicone, etc. are mentioned, Among these, 1 type (s) or 2 or more types are used. Of these, sucrose fatty acid esters are most desirable from the viewpoint of pore cleaning power and skin irritation. In order to effectively clean the pores and maintain low irritation, the nonionic surfactant (E) may be blended in an amount of 0.1 to 10% by mass based on the total amount of the skin cleanser. Desirably, more desirably 0.5 to 3% by mass.

  In the skin cleanser of the present invention, the ratio of the total content of components (A), (B) and (C) to the content of water as component (D) [(A) + (B) + (C)] : (D) is 20: 1 to 2: 1, preferably 5: 1 to 2: 1. Outside these ranges, the cleaning effect may not be sufficient, or skin irritation may be strong. Further, when the ratio (A) :( B) of the content of the component (A) to the component (B) is 1: 2 to 1: 8, the detergency becomes more preferable. Furthermore, in order to wash the pores more effectively, the content ratio (B) :( C) of each component (A) to (C) in the skin cleansing material of the present invention is set to 4: 1 to 8: 1. , (A) :( C) is preferably 2: 1 to 1: 1.

  In the present invention, as long as the effects of the invention are not impaired, in addition to the above essential components, amphoteric surfactants, cationic surfactants, gums, other polymer compounds, oils, higher alcohols, propellants , Preservatives, chelating agents, antioxidants, enzymes, pH adjusters, dyes, fragrances, and the like can be blended. Among these, since an enzyme can make the washing | cleaning effect of the skin cleansing material of this invention more excellent, it is preferable to mix | blend with the skin cleansing material of this invention.

  The enzyme is intended to remove protein stains and excess keratin on the skin, and oils such as sebum, and any enzyme can be used as long as it can be blended into the skin cleanser. Examples of the enzyme used in the present invention include protease, lipase, lysozyme and the like, and the production method / extraction method and origin are not particularly limited as long as they are used for pharmaceuticals, cosmetics, detergents and the like. The enzyme may be used alone, but it is desirable to use an immobilized enzyme for the stability of the enzyme itself. In particular, when the present skin cleanser is intended for pore cleaning, it is preferable to use a protease as the enzyme.

  The skin cleanser of the present invention can be applied to facial cleansers, site-specific cleansers, hand soaps, body shampoos and the like. Since the skin cleansing material of the present invention is suitable for pore cleaning, the effect of the present invention can be effectively utilized when used as a skin cleaning material for pore cleaning. Therefore, the skin cleaning material of the present invention is used as a skin cleaning material for pore cleaning. It is particularly preferred.

  Hereinafter, the present invention will be described with reference to Examples and Comparative Examples, but the present invention is not limited thereto.

  The methods of various evaluation tests carried out in the examples and comparative examples are as follows. In addition, the compounding quantity of the composition shown in the following tables | surfaces is the mass%.

(Evaluation test method)
An evaluation test was conducted on subjects (10 persons) who had weak skin and had skin problems in the past. The evaluation samples were used appropriately during face washing in daily life, and the pore cleaning effect, the fresh feeling of washing and the feeling of irritation during use were evaluated according to the following evaluation criteria, and the average evaluation score was determined.

<Effect of pore cleaning>
4: Feel very
3: Feel slightly 2: Feel a little 1: Not feel at all

<Feel fresh after washing>
4: Very good
3: Good
2: Slightly bad
1: bad

<Stimulation during use>
4: I don't feel at all 3: I almost don't feel 2: I feel a little 1: I always feel

Examples 1-7, Comparative Examples 1-6
A skin cleanser (liquid cleanser) having the formulation shown in Table 1 was prepared by a conventional method, and the evaluation test was performed. In the evaluation, about 3 ml of sample was used per one time. The results are also shown in Table 1.

(Table 1)

  As is clear from Table 1, the cleaning materials of the examples using the components of the present invention all had excellent performance. On the other hand, in the comparative example in which any of the essential components is missing or the content ratio is not specified, it is inferior in any aspect of pore cleaning effect, refreshing feeling after washing, or irritation feeling in use. Therefore, the object of the present invention could not be achieved.

Example 8 (Liquid face wash)
When a liquid cleanser having the following composition was prepared and evaluated by a conventional method, it had little skin irritation and had excellent performance for cleaning pores.

(Composition composition)
Raw material name Amount (% by mass)
―――――――――――――――――――――――――――――――――
Dipropylene glycol 8.0
Diglycerin 8.0
(Product name: Diglycerin 801, manufactured by Sakamoto Pharmaceutical Co., Ltd.)
Glycerin 55.0
Sorbitol solution 2.0
Ethanol 2.0
Sucrose laurate 0.3
(Product name: Ryoto Sugar Ester L-1695, manufactured by Mitsubishi Chemical Foods)
Polyoxyethylene hydrogenated castor oil (60E.O.) 0.5
Polyoxyethylene sorbitan monolaurate 0.5
(Product name: Tween L120, manufactured by Kao Corporation)
Sodium benzoate 0.1
Dextran immobilized protease 0.5
Carboxyvinyl polymer 0.2
Potassium hydroxide 0.05
Edetate disodium 0.1
Methyl paraoxybenzoate 0.1
Phenoxyethanol 0.1
Citric acid 0.08
Sodium citrate 0.02
Dipotassium glycyrrhizinate 0.1
Mixed fruit extract 0.1
(Product name: Multi-fruit BSC, manufactured by Arch Personal Care Products)
Fragrance 0.2
Purified water balance

Example 9 (Liquid face wash)
When a liquid cleanser having the following composition was prepared and evaluated by a conventional method, it had little skin irritation and had excellent performance for cleaning pores.

(Composition composition)
Raw material name Amount (% by mass)
―――――――――――――――――――――――――――――――――
Dipropylene glycol 8.0
Diglycerin 8.0
(Product name: Diglycerin 801, manufactured by Sakamoto Pharmaceutical Co., Ltd.)
Glycerin 55.0
Ethanol 2.0
Sucrose laurate 0.3
(Product name: Ryoto Sugar Ester L-1695, manufactured by Mitsubishi Chemical Foods)
Polyoxyethylene hydrogenated castor oil (60E.O.) 0.5
Polyoxyethylene sorbitan monolaurate 0.5
(Product name: Tween L120, manufactured by Kao Corporation)
Glyceryl tri-2-ethylhexanoate 1.0
Squalane 1.0
Polyoxyethylene coconut oil fatty acid glycerin 1.0
Methylphenylpolysiloxane 1.0
Methyl polysiloxane 1.0
Sodium benzoate 0.1
Acrylic acid / methacrylic acid copolymer 0.2
(Product name: PEMULEN TR-1, manufactured by Lubrizol)
Potassium hydroxide 0.05
Edetate disodium 0.1
Methyl paraoxybenzoate 0.1
Phenoxyethanol 0.1
Dextran immobilized protease 0.5
Dipotassium glycyrrhizinate 0.1
Mixed fruit extract 0.1
(Product name: Multi-fruit BSC, manufactured by Arch Personal Care Products)
Nicotinic acid dl-α-tocopherol 0.1
Fragrance 0.2
Purified water balance

Example 10 (Liquid face wash)
When a liquid cleanser having the following composition was prepared and evaluated by a conventional method, it had little skin irritation and had excellent performance for cleaning pores.

(Composition composition)
Raw material name Amount (% by mass)
―――――――――――――――――――――――――――――――――
Dipropylene glycol 8.0
Diglycerin 8.0
(Product name: Diglycerin 801, manufactured by Sakamoto Pharmaceutical Co., Ltd.)
Glycerin 55.0
Ethanol 2.0
Sucrose laurate 0.3
(Product name: Ryoto Sugar Ester L-1695, manufactured by Mitsubishi Chemical Foods)
Polyoxyethylene hydrogenated castor oil (60E.O.) 0.5
Polyoxyethylene sorbitan monolaurate 0.5
(Product name: Tween L120, manufactured by Kao Corporation)
Polyoxyethylene methyl glucoside 1.0
(Product name: Gurucam E-20, manufactured by Amacall)
dl-Pyrrolidonecarboxylate sodium solution 0.1
(Product name: PCA soda, manufactured by Ajinomoto Co., Inc.)
Ethyl glucoside 1.0
l-Menthol 0.1
dl-Camphor 0.1
l-Mentylglyceryl ether 0.1
Chlorphenesin 0.1
Acryloyldimethyltaurate ammonium 0.2
/ N-vinylpyrrolidone copolymer (Brand name: ARITOFLEX AVC, manufactured by Clariant)
Edetate disodium 0.1
Methyl paraoxybenzoate 0.1
Phenoxyethanol 0.1
Dextran immobilized protease 0.5
Dipotassium glycyrrhizinate 0.1
Mixed fruit extract 0.1
(Product name: Multi-fruit BSC, manufactured by Arch Personal Care Products)
Fragrance 0.2
Purified water balance

  In addition, the composition of the fragrance | flavor used in said Examples 8-10 is shown in Table 2.

(Table 2)

  According to the present invention, it is possible to provide a skin cleanser that can effectively clean pores and the like without imposing a burden on the skin.

Claims (5)

A skin cleanser containing (A) a hydroxyl group having two or less alcohols, (B) glycerin, (C) a hydroxyl group having four or more alcohols, (D) water, and (E) a nonionic surfactant. , (A), (B) and (C) Total content of component and (D) component content ratio [(A) + (B) + (C)]: (D) is 20: 1 to 2 1. A skin cleanser characterized by being 1: 2. The skin cleanser according to claim 1, wherein the ratio (A) :( B) of the content of the component (A) and the component (B) is 1: 2 to 1: 8. The skin cleansing material according to claim 1 or 2, further comprising an enzyme. The skin cleanser according to any one of claims 1 to 3, wherein the nonionic surfactant (E) is a sucrose fatty acid ester. The skin cleanser according to any one of claims 1 to 4, which is a skin cleanser for pore cleaning.