JPH01117812A - Skin cosmetic - Google Patents

Abstract

PURPOSE:To obtain a skin cosmetic having proper astriction and excellent effects on the skin free from side effects to cause disorder, containing a bonded substance of chondroitin sulfate ion and an astringent metallic ion. CONSTITUTION:A skin cosmetic such as foundation, cream or astringent lotion is blended with usually 0.05-20.00wt.% based on cosmetic base of a bonded substance of chondroitin sulfate ion and an astringent metallic ion such as zinc chondroitin sulfate or aluminum chondroitin sulfate as an astringent agent to give a skin cosmetic capable of preventing make-up collapse by development of sweating inhibition caused by astriction, suppressing chapped skin or skin dryness of existing astringent agent, having excellent water retention on the skin and maintaining the skin moist and smooth.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to skin cosmetics such as foundations, creams, astringent lotions and other skin cosmetics.

[Prior Art] It is well known that conventional skin cosmetics such as foundations and astringents contain astringents to tighten the skin. As such astringents, zinc sulfate, aluminum sulfate, zinc chloride, aluminum chloride, etc. are usually used.

[Problems to be solved by the invention] However, all of the above astringents are highly effective, irritating, and somewhat corrosive, so they may cause inflammation, and they may cause skin roughness or dryness. There was a problem that caused this.

It is an object of the present invention to solve these conventional problems and to provide a skin cosmetic that exhibits an antiperspirant effect and does not leave makeup smudged, without causing the above-mentioned inconveniences.

[Means for solving problems] In the present invention, it has a moderate astringent effect.

As a result of extensive research into an astringent that can have an effective effect on the skin without any harmful side effects, we found that the above problems can be solved by the presence of an astringent metal ion combined with chondroitin sulfate ion. This is the solution.

That is, the present invention is a skin cosmetic characterized by containing a combination of chondroitin sulfate ions and metal ions having astringent properties.

[Action] Chondroitin sulfate is a sulfate ester of a polysaccharide that belongs to the mucopolysaccharides, and has a moisturizing effect on the skin, and also has an anti-inflammatory effect, and has the effect of smoothing the skin, adjusting the texture, and improving the adhesion of makeup. It is. This ion is one of the few polyions that does not cause precipitation even when combined with monovalent or divalent or trivalent metal ions. Therefore, even when combined with divalent zinc ions and trivalent aluminum ions, which have an astringent action, they do not form a precipitate, are stable, and can compensate for the drawbacks of the astringent metal ions mentioned above. In the invention, the object can be achieved by using, for example, chondroitin zinc sulfate or chondroitin aluminum sulfate as the conjugate and incorporating it into a skin cosmetic such as a lotion or cream.

The amount to be blended is determined depending on the type of cosmetic product and is not particularly limited.
．． It is preferable to mix it in the range of 05 to 20.00%.

[Example 2] An example of producing a conjugate of chondroitin sulfate ion and an astringent metal ion to be present in a cosmetic in the present invention.

Production example-1 100g of sodium chondroitin sulfate aqueous solution containing 20% zinc chondroitin sulfate
Mix and stir 0.2g of zinc sulfate.
Drop into 9.5% ethanol.

Separate the aggregated material and dry it.

Production Example-2 Mix and stir 0.6 g of aluminum sulfate to 100 g of a 20% sodium chondroitin sulfate aqueous solution.
．． Drop it into 5% ethanol, collect the aggregated material,
dry.

Example-1 Foundation (A) (numbers are wt%) 1
, stearic acid
2.82, Lipophilic glyceryl monostearate 1.43, Cetyl alcohol
0.94, liquid paraffin
12.95, lanolin

2.86, myristic isopropyl
1.57, sesquiolei-4 sorbitan 0. 1
8. Paraoxybenzoic acid ester
0.29.0.1% carboxymethylcellulose sodium aqueous solution 41.71O9 triethanolamine
1.111, 1,3-butylene glycol
7.512, magnesium aluminum silicate
0.513, talc
1.314, titanium oxide
8.615, pigment
1.716,
chondroitin sulfate zinc
1.017, Purified water
13.71B, fragrance
0.3 Manufacturing method 1 to 8 were dissolved by heating and kept at 80°C, 9 to 15 were separately dissolved and dispersed by heating and kept at 85°C. Added, cooled while stirring and mixing, and when the temperature was 50°C, A solution of 16 and 18 were added to 17, and the mixture was further cooled to room temperature with stirring to obtain a foundation (A).

Comparative example - (B) 0.5% zinc sulfate instead of chondroitin zinc sulfate
Foundation (B) was obtained in the same manner as in Example 1, except that purified water was used at 14.2%.

Comparative Example (C) A foundation (C) was obtained in the same manner as in Example 1, except that chondroitin sulfate was not blended and 14.7% of purified water was used.

Example-2 Base cream (D) 1. Stearic acid
5.02, Behenyl alcohol
0.53, squalane
15.04, Monooley 4 polyoxyethylene sorbitan 1.05, Tetraoley 4 polyoxyethylene sorbitan 1.56,
Self-emulsifying monometial 4-glycerin
3.07, Octane Kacetyl
5.08, paraoxybenzoic acid ester 0
．． 29.1,3-butylene glycol
5.010, Purified water
53.61
1. Chondroitin aluminum sulfate
1.012, Purified water
9.013
．． fragrance
0.2 Manufacturing methods 1 to 8 were dissolved by heating and kept at 78°C. Separately, 9.10 was dissolved by heating and kept at 80°C. Cooled while stirring and mixing, and 12 to 11 was prepared at 50°C. and 13
was added and further cooled to room temperature while stirring to obtain a base cream (D).

Comparative Example (E) A base cream (E) was obtained in the same manner as in Example 2, except that aluminum chloride was used instead of aluminum chondroitin sulfate and purified water was changed to 9.5%.

Comparative example-(F) Contains no chondroitin aluminum sulfate.

A base cream (F) was obtained in the same manner as in Example 2, except that 10.0% purified water was used.

Example-3 Astringent Lotion 1, Polyoxyethylene hydrogenated castor oil
0.62, fragrance
0. 13. Ethanol
1
5.04 Paraoxybenzoic acid ester
0.15, purified water
79.76,
chondroitin sulfate zinc
0.57.1.3-Butylene gelicol
4.0 Preparation method 1, 2.4 dissolved in 3, and 6.7 dissolved in 5 are mixed and stirred to produce a uniform product.

Example-4 Deodorant cream 1, Steari A
4.02, Cetyl alcohol
2.03, Lipophilic monostearin glycerin 1
0.04, myristic isopropyl
4.05, Isopropylmethylphenol 0.56
．． 1,3-butylene glycol
12.07, Caustic Cali
1.08, Purified water 5
6.09, chondroitin aluminum sulfate
1.010, Purified water
9.0
11. Fragrance
0.5 Preparation method 1 to 5 were heated and dissolved and kept at 75°C. Separately, 6 to 8 were heated and dissolved and kept at 75°C. Cooled while stirring and mixing, and dissolved at 50°C. 9 dissolved in and 11
was added and further cooled while stirring to obtain a deotrant cream.

Product usage test results Examples (A, D) and comparative examples (B, C, E.

Regarding F), a usage test was conducted on 10 women, and evaluation was made on the adhesion of the makeup composition to the skin, makeup smearing, irritation, and moist feeling based on the following criteria.

However, D, E, and F are used as makeup bases.
I used the existing cake foundation from above.

The results were as shown on the robe.

Evaluation criteria: l-poor 2-slightly bad 3-″fI 4-good
5-Very good BCDEF makeup on the skin 423523 makeup
Misalignment 542542 Irritation
424423 Moist feeling
5234 ・23 [Effects of the Invention] As is clear from the above results, according to the present invention, the antiperspirant effect associated with astringency is expressed, and makeup deterioration is prevented, and the antiperspirant effect is prevented like that of conventional astringents. It is highly effective as a skin cosmetic because it prevents skin roughness and dryness, has good water retention properties, and keeps the skin moist and smooth.

Patent applicant: Seven Chemical Co., Ltd.

Claims (1)

[Claims] A skin cosmetic containing a combination of chondroitin sulfate ion and an astringent metal ion.