JPH0617293B2 - Hair cosmetics - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hair cosmetic composition, and more particularly to an antidandruff hair cosmetic composition in which a compound having a bactericidal or antibacterial action and a specific substance are blended in a specific amount. .

[Prior Art] In general, dandruff is composed of secretions of sebaceous glands, secretions of sweat glands, exfoliated substances of the epidermal layer, etc. Usually, it is caused by increased secretion of sebaceous glands, but when the skin is infected with bacteria or yeast, The occurrence of dandruff is said to be pathologically promoted. Therefore, hair cosmetics containing an antibacterial agent have been conventionally used for preventing dandruff. For example, zinc pyrithione (hereinafter referred to as ZPT) has been conventionally used as the most effective antidandruff drug, but it is well known that this substance also belongs to the category of antibacterial agents.

However, some of these antibacterial agents and bactericides have safety problems, and it is considered preferable to avoid using them in large amounts as much as possible.

[Problems to be Solved by the Invention] In view of the above-mentioned circumstances, the present inventors have excellent safety and have further improved the dandruff prevention effect of ZPT and other antibacterial agents and bactericides. As a result of earnest research for the purpose of developing a drug, (1) Rumex extract (2) Sezamol (3) Lecithin (4) Phosphatidylserine (5) Phosphatidylethanolamine (6) Ascorbic acid ( 7) Butylhydroxyanisole (8) Dibutylhydroxytoluene (9) Erysorbic acid (10) Guayak fat (11) Nordihydroguaiaretic acid (12) Propyl gallate (13) Ascorbic acid salt (14) Citric acid salt (15) Erythorbic acid salt (16) The substance of nordihydroguaiaretic acid salt is extremely effective in preventing dandruff. Te is a useful, was found to be able to also improve safety.

As a result of further research based on this finding, it was confirmed that when the above substances and antibacterial agents and bactericides are used in combination, the antidandruff effect of these compounds can be significantly increased and the concentration of both can be reduced. The present invention has been completed.

[Means for Solving Problems] That is, according to the present invention, one or two or more kinds selected from the group of compounds having bactericidal and antibacterial activities are added in a total amount of 0.0001 to 0.0001 to the total amount of hair cosmetics. 0.5% by weight and 0.005 to 1.0% by weight, based on the total amount of the hair cosmetic composition, of one or two or more substances selected from the following groups as active ingredients It is hair cosmetics.

The configuration of the present invention will be described below.

The substances used in the present invention are (1) Rumex japonicus extract (2) Cezamol (3) Lecithin (4) Phosphatidylserine (5) Phosphatidylethanolamine (6) Ascorbic acid (7) Butylhydroxyanisole (8) ) Dibutylhydroxytoluene (9) Erythorbic acid (10) Guayak butter (11) Nordihydroguaiaretic acid (12) Propyl gallate (13) Ascorbic acid salt (14) Citric acid salt (15) Erythorbic acid salt (16) A salt of nordihydroguaiaretic acid, which includes ascorbic acid, citric acid, erythorbic acid,
Examples of the salt of nordihydroguaiaretic acid include sodium salt and potassium salt.

One or two or more of these are appropriately selected and mixed.

The total amount is 0.005 to the total amount of hair cosmetics.
It is 1.0% by weight.

The compound having a bactericidal / antibacterial action used in the present invention is a compound having a relatively high safety that can be generally used for cosmetics regardless of whether it is a natural extract or a synthetic product, and regardless of its shape or characteristics. Any one can be used. For example,
Examples include zinc pyrithione, trichlorocarbanilide, triclosan, salicylic acid, sodium benzoate, hinokitiol, photosensitizer, halocarbane, chlorhexidine gluconate, and benzalkonium chloride.

One or two or more of these are appropriately selected and mixed.

The total amount is 0.0001 based on the total amount of hair cosmetics.
~ 0.5% by weight.

In the cosmetic of the present invention, the usual components that are blended in addition to the above-mentioned essential components, such as oil, ultraviolet absorber, surfactant, preservative, moisturizer, fragrance, water, alcohol, thickener,
Coloring agents and the like can be appropriately blended as necessary.

The hair cosmetic composition of the present invention broadly refers to those used for the scalp or hair, and includes, for example, hair tonic, hair liquid (liquid hair wash), scalp emulsion, hair cream, hair shampoo, hair rinse, hair spray and the like. Be done.

The hair cosmetic composition of the present invention has low irritation and almost no sensitizing property,
Therefore, long-term continuous use is also possible.

[Examples] Next, the present invention will be described in more detail with reference to Examples and Experimental Examples. The present invention is not limited to this. The blending amount is% by weight.

Experimental Example The above-mentioned display substances, a sterilizing agent and an antibacterial agent were mixed in a hair tonic to measure the antidandruff effect.

Based on the formulation shown in Table 1, a hair tonic was produced by a conventional method and the antidandruff effect was measured.

(Measurement method for dandruff prevention effect) A test was conducted by selecting 60 male subjects aged 22 to 50 and having a relatively large amount of dandruff.

Before starting the test, wash the hair with a shampoo without addition of chemicals, and make the hair styling with a hair tonic without addition of chemicals.
The accumulated dandruff was collected twice a week for 1 month, and the amount of protein in the collected dandruff was measured (control period).
Then, the panel was divided into 20 groups of 3 persons each, and a shampoo containing no drug, the above-mentioned display substances, and a hair tonic containing a sterilizing agent and an antibacterial agent were used for one month. Similar to the control period, dandruff accumulated twice a week for 2 days after washing hair was collected, and the protein amount was measured (sample period).

Hair tonic is to be used once a day, and the average dandruff protein amount in the control period and the average dandruff protein amount in the sample period are compared. If the reduction rate of dandruff is 50% or more ... A 40% or more, When it is less than 50% ... B: 20% or more, less than 40% ... C: When it is less than 20% ... D.

The results are shown in Table 1.

As a result, it was confirmed that all the products of the present invention significantly prevented dandruff.

Examples of the present invention will be shown below.

Example 13 Polyoxyethylene (8 mol) in 55 g of ethyl alcohol
2 g of oleyl alcohol ether and triclosan.
An appropriate amount of 5 g and a flavor was added and dissolved at room temperature to obtain an alcohol phase. Separately, 5 g of glycerin and 0.2 g of ascorbic acid were added to 37.3 g of purified water and dissolved by heating. An alcohol phase was added to the aqueous phase to solubilize it, and after cooling, an appropriate amount of dye was added to obtain a hair tonic having an antidandruff effect.

Example 14 To 52.5 g of ethyl alcohol, 20 g of polyoxypropylene butyl ether, 2 g of squalane, 0.5 g of rosemary, and an appropriate amount of a fragrance and 0.2 g of triclocarban were dissolved at room temperature, and 24.8 g of purified water was added and dissolved by heating. After cooling, a portion to which an appropriate amount of dye was added was mixed to obtain a hair liquid having an antidandruff effect.

Example 15 2 g of stearic acid, 1.5 g of cetyl alcohol, 3 of vaseline
g, liquid paraffin 12 g, polyoxyethylene (10 mol) monooleate 2 g, and photosensitizer 201 0.00
5 g, phosphatidylcholine 0.06 g and an appropriate amount of perfume were mixed and heated to 80 ° C. to obtain an oil phase. Separately, 5 g of propylene glycol, 1 g of triethanolamine, and 73.4 of purified water
35 g was heated to 80 ° C., the above oil phase was gradually added to this aqueous phase with stirring, and after emulsification, it was cooled to obtain a scalp emulsion having an antidandruff effect.

Example 16 2 g of stearic acid, 7 g of stearic alcohol, 2 g of lanolin, 5 g of squalane, 6 g of octyldodecanol,
3 g of polyoxyethylene (10 mol) cetyl ether,
2 g of glyceryl monostearate, 0.1 g of Rumex japonicus, 0.2 g of halocarban and an appropriate amount of perfume were added and heated to 80 ° C. to obtain an oil phase. Separately, 5 g of propylene glycol and 67.7 g of purified water were gradually added to an aqueous phase heated at 80 ° C. with stirring to emulsify and cool to obtain a hair cream having an antidandruff effect.

Example 17 Purified water (78.6 g) was mixed with lauryl sulfate triethanolamine (15).
g, zinc pyrithione 0.5 g, coconut oil fatty acid monoethanol amide 5 g, dibutyl hydroxytoluene 0.8 g, guaiac fat 0.1 g, dyes and flavors were added in appropriate amounts, and after heating and mixing, a hair shampoo having an antidandruff effect was obtained. .

Example 18 3.5 g of polyethylene glycol 1500 and 1.0 g of triethanolamine were dissolved in 74.2 g of purified water with heating and kept at 70 ° C. 2.5 g of stearic acid, 1.5 g of cetyl alcohol, 5.0 g of petrolatum, 10.0 g of squalane, 2.0 g of polyoxyethylene (10 mol) monooleate, 0.2 g of triclocarban, 0.1 g of butylhydroxyanisole were dissolved by heating at 70 ° C. And kept in the water phase. After the preliminary emulsification, the emulsion was uniformly emulsified with a homomixer and gradually cooled to prepare a hair emulsion having an antidandruff effect.

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Izumi Horii 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Shinichi Naito, Examiner, Shiseido Research Institute, Inc.

Claims (1)

[Claims] 1. A total of one or two or more selected from the group of compounds having bactericidal and antibacterial activities, which is 0.0001 to 0.5% by weight based on the total amount of the hair cosmetic composition, and is selected from the following groups. Hair cosmetics comprising one or two or more of these substances as active ingredients in a total amount of 0.005 to 1.0% by weight based on the total amount of the hair cosmetics. (1) Rumex japonicus extract (2) Cezamol (3) Lecithin (4) Phosphatidylserine (5) Phosphatidylethanolamine (6) Ascorbic acid (7) Butylhydroxyanisole (8) Dibutylhydroxytoluene (9) Erysorbin Acid (10) Guayak butter (11) Nordihydroguaiaretic acid (12) Propyl gallate (13) Ascorbic acid salt (14) Citric acid salt (15) Erythorbic acid salt (16) Nordihydroguaiaretic Acid salt