JPH0967242A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic forming a film having excellent adhesiveness, peelable as a single film, hardly giving residual material on the skin after peeling off and giving excellent use feeling. SOLUTION: This cosmetic contains 0.01-7.5wt.% of at least water, a water- soluble polymer and more than one kinds selected from a fatty acid ester such as polyoxyethylene sorbitan stearate, aliphatic glyceryl ether isostearate, 12- stearoyl stearate. Conventional components used as cosmetic components are suitably mixed in the cosmetic. Polyoxythylene sorbitan stearate, etc., are readily miscible and mixable with the water-soluble polymer and capable of uniformly dispersing in the cosmetic, thus whole of the film is made to be readily peelable and has suitable extensibility and strength by mixing these compounds, and further, tacky feeling and blocked feeling, etc., after using the cosmetic are eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic having excellent adhesion and capable of forming a peelable film as a single film, and in which the cosmetic composition hardly remains on the skin after the film is peeled off. is there.

[0002]

2. Description of the Related Art As a film-forming cosmetic, a peel-off type pack cosmetic as a skin care cosmetic is generally known. Peel-off type pack cosmetics are
A pack cosmetic is applied on the skin and the film formed after drying is peeled off. As a film-forming agent for peel-off type pack cosmetics, generally, polyvinyl alcohol which is cheap and easy to handle is used, and carboxymethylcellulose is used depending on the purpose such as increasing the viscosity of the cosmetics and forming a tough film. Resins such as hydroxyethyl cellulose, polyvinylpyrrolidone, polyvinyl acetate emulsion and xanthan gum are used in combination.

[0003]

However, when the film formed from the cosmetics using the resin as described above is stiff and has insufficient elongation, the adhesion to the skin becomes poor. . The film lacking in adhesion has a problem that it is easily peeled off due to the movement of the skin.

[0004] Even if the film has sufficient extensibility and good adhesion, but the strength of the film is weak, it becomes difficult to remove the film as a single film at one time when attempting to remove it from the skin. I will end up. That is, when trying to peel the film from the skin,
Since the film is damaged and a part of the film remains on the face, it is impossible to remove the film all at once, and there is a problem that it takes a considerable amount of time to remove all the cosmetics.

Here, by adding oils such as petrolatum, silicone oil, squalane, decaglyceryl dekaoleate, glyceryl oleate, glyceryl isostearate and myristyl myristate, a surfactant and the like, the film is given extensibility. You can, but on the other hand,
There is a problem that the strength of the film becomes weak and it becomes difficult to separate the film from the skin at one time when peeling the film from the skin.

[0006] Further, since the oil content and the surfactant are less compatible and miscible with the water-soluble polymer than the adhesion to the skin, the oil and the surfactant are present on the contact surface with the skin. After peeling off the film, the trace (residue) is left on the skin. Oils and surfactants have an adverse effect on the skin, such as rough skin and the attachment of dirt such as dust, and also have a sticky feeling after use of a cosmetic composition, a feeling of blockage, and the like, which significantly impairs the feeling of use.

That is, according to the present invention, by forming a film that has appropriate extensibility and strength, it is excellent in adhesion to the skin against movement of the skin and can be peeled at a time as a single film,
Moreover, it is an object of the present invention to provide a cosmetic in which the cosmetic composition hardly remains on the skin after the film is peeled off.

[0008]

According to the present invention, at least water, a water-soluble polymer, polyoxyethylene sorbitan stearate, aliphatic glyceryl ether isostearate, and fatty acid ester of 12-stearoylstearic acid are selected. The gist of the present invention is a cosmetic composition prepared by mixing one or more kinds.

Hereinafter, the present invention will be described in detail. Polyoxyethylene sorbitan stearate can be used without limitation in the number of ethylene oxide added, the number of stearic acid residues, and the like. Examples thereof include polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan isostearate having an ethylene oxide addition number of 6 moles, 12 moles, 20 moles, and 32 moles. .

The aliphatic glyceryl ether isostearate can be used without limitation for the type of aliphatic. As an example, oleyl glyceryl ether isostearate,
Stearyl glyceryl ether isostearate, cetyl glyceryl ether isostearate, etc. are mentioned.

The fatty acid ester of 12-stearoylstearic acid can be used without limitation in the type of fatty acid residue. Examples thereof include stearyl ester, isostearyl ester, cetyl ester, and isocetyl ester of 12-stearoylstearic acid.

A film is formed as the compounding amount of one or more of polyoxyethylene sorbitan stearate, aliphatic glyceryl ether isostearate, and fatty acid ester of 12-stearoylstearic acid in the cosmetic of the present invention. Any concentration can be selected depending on the concentrations of various resins to be used, other surfactants, etc., compatibility with them, and miscibility, but preferably 0.01 to 7.5% by weight. If the amount is 0.01% by weight or less, the amount of the compound is too small and the extensibility of the film is not sufficient, resulting in a lack of adhesion to the skin against movement of the skin. Further, if it is 7.5% by weight or more, the extensibility is sufficient, but the strength of the film becomes relatively weak, and it becomes difficult to peel it off as a single film at a time, or on the skin after peeling and removing the film. Residual cosmetics will be recognized.

In addition to the above essential components, various polymers or surfactants generally used as cosmetic ingredients, such as organic solvents, humectants, dispersants, or dispersion aids, and surface active agents as penetrants. Agents, various antiseptic and antifungal agents, water-soluble polymers as viscosity modifiers, resins and water repellents for imparting water resistance, ultraviolet absorbers, chelating agents, pH adjusters, colorants,
A fragrance or the like can be appropriately mixed.

As the coloring material, any coloring material that can be used in cosmetics can be used. Specific examples thereof include Red No. 2,
Red 3, Red 102, Red 104 (1), Red 105 (1), Red 106, Red 227, Red 230 (1), Red 230 (2), Red 231
No., red 232, yellow 4, yellow 5, yellow 202 (1), yellow 202 (2), yellow 203, green 3, green 201, green 204, green 205, Blue No. 1, Blue No. 2, Blue No. 202, Blue No. 205, Daidai No. 205, Daidai No. 207, Brown No. 201 and their water-soluble dyes and their barium, calcium, zirconium, aluminum lake pigments, Red No. 201, Red No. 202, Red No. 203, Red No. 204, Red No. 205
Red, Red 206, Red 207, Red 208, Red 215, Red 218, Red 219, Red 220
No., Red 221, Red 223, Red 225, Red 226, Red 228, Yellow 201, Yellow 204
No. 205, Yellow No. 205, Green No. 202, Blue No. 201, Blue No. 204, Blue No. 404, Day No. 201, Day No. 203, Day No. 204, Day No. 206
Pigment No., Daidai No. 401, Daidai No. 402, Daidai No. 403, Purple No. 201, yellow iron oxide,
Inorganic pigments such as black iron oxide, red iron oxide, titanium dioxide, sunflower, konjac, chromium oxide, chromium hydroxide, carmine and shikonin, and composite powder pigments obtained by coloring organic or inorganic powder with dyes or pigments, etc. . These coloring materials may be used alone or in combination of two or more.

[0015]

[Function] Polyoxyethylene sorbitan stearate,
Aliphatic glyceryl ether isostearate and fatty acid ester of 12-stearoyl stearic acid are easily miscible and mixed with water-soluble polymers generally used in cosmetics, and can be uniformly dispersed in cosmetics. it can. That is, in the coating film of the cosmetic, the water-soluble polymer is in a network or microgel state, but in the cosmetic of the present invention, polyoxyethylene sorbitan stearate, fat It is considered that one or more of the group glyceryl ether isostearates and the fatty acid esters of 12-stearoylstearic acid are present. This polyoxyethylene sorbitan stearate, aliphatic glyceryl ether isostearate,
The portion where the fatty acid ester of 12-stearoylstearic acid is present is softer than the portion formed by the water-soluble polymer, is highly stretchable, and easily expands and contracts. For this reason, the entire film has appropriate extensibility. On the other hand, the polyoxyethylene sorbitan stearate, the aliphatic glyceryl ether isostearate, and the fatty acid ester portion of 12-stearoylstearic acid in the film have weak strength,
The portion of the water-soluble polymer existing around the portion is supplemented, the entire film can have an appropriate strength, and the entire film can have good releasability.

The polyoxyethylene sorbitan stearate, the aliphatic glyceryl ether isostearate, and the fatty acid ester of 12-stearoyl stearic acid used in the cosmetic of the present invention are water-soluble, which are generally used in cosmetics. Since it has a good compatibility / mixability with the polymer, it is present uniformly in the film after drying, and it does not exist unevenly on the contact surface with the skin. Therefore, it hardly adheres to the skin, and hardly remains on the skin even after the film is peeled off. A small amount may remain depending on the blending amount, but it is an extremely small amount,
Since it mixes quickly with sebum, there is almost no residue that can be seen on the outside, and it has a negative effect on the skin due to rough skin, the adhesion of dirt such as dust, and a sticky feeling after use of cosmetics, a feeling of blockage, etc.
It does not cause a bad usability.

[0017]

The present invention will be described in more detail with reference to the following examples. In the examples and comparative examples, “parts” simply indicates “parts by weight”.

Example 1 Purified water 40.15 parts Ethanol 33.90 parts Glycerin 5.00 parts Propylene glycol 1.00 parts Oleyl glyceryl ether 2.00 parts HCO-40 (polyoxyethylene hydrogenated castor oil, Nikko Chemicals (stock) )) 1.50 parts MB-8C-R (composite pigment of polymethylmethacrylate and valve shell, Sekisui Plastics Co., Ltd.) 12.00 parts PVA-217 (polyvinyl alcohol, Kuraray Co., Ltd.) 3.75 parts PEMULEN TR-1 (acrylic acid / alkyl methacrylate copolymer, manufactured by BF Goodrich, USA) 0.20 parts polyoxyethylene (6) sorbitan monostearate 0.50 parts First of all, purified water 10 0.00 copies and PEMULEN
After stirring 0.20 parts at room temperature for 10 hours to form an aqueous solution, the other components are heated and stirred to uniformly mix,
The above PEMULEN aqueous solution was added and the mixture was stirred at a low speed to obtain a brown cosmetic material.

Example 2 Purified water 46.90 parts Ethanol 38.00 parts Glycerin 6.00 parts Oleyl glyceryl ether 2.00 parts Polyoxyethylene (20) polyoxypropylene (4) cetyl ether 2.00 parts Liquid paraffin 0 .25 parts PEMULEN TR-1 (acrylic acid / alkyl methacrylate copolymer, manufactured by BF Goodrich, USA) 0.10 part Carboxymethyl cellulose 3.50 parts Stearyl glyceryl ether isostearate 1.25 parts Purified water in the above components. 5.00 copies and PEMULEN
Stir 0.10 parts at room temperature and let stand for 10 hours to form an aqueous solution. Heat and stir the remaining components other than carboxymethylcellulose to mix evenly, then add carboxymethylcellulose and stir, then add PEMULEN aqueous solution and add low speed. The mixture was stirred to obtain a cloudy color cosmetic.

Example 3 Purified water 48.50 parts Ethanol 30.00 parts Glycerin 1.25 parts Propylene glycol 4.50 parts Polyoxyethylene (20) oleyl ether 2.00 parts Olive oil 0.25 parts Platin's B (paraoxy benzoin) Acid butyl ester, manufactured by Ueno Pharmaceutical Co., Ltd. 0.50 part Carboxymethyl cellulose 2.75 parts Porous nylon (manufactured by ATOCHEM, France) and Blue No. 404 (manufactured by Daito Kasei Kogyo Co., Ltd.) 10.00 Part 12-stearoylstearic acid isostearyl ester 0.25 part After heating and stirring components other than carboxymethyl cellulose uniformly among the above components, carboxymethyl cellulose was added and the mixture was stirred at low speed to obtain a blue cosmetic material. In addition,
The above composite pigment includes porous nylon and blue No. 404
It was obtained by mixing in a ratio of 0: 1 and stirring with a ball mill for 8 hours.

Example 4 Purified water 49.00 parts Ethanol 40.50 parts Glycerin 4.25 parts HCO-40 (polyoxyethylene hydrogenated castor oil, Nikko Chemicals Co., Ltd.) 1.25 parts Liquid paraffin 0.25 parts PVA-217 (polyvinyl alcohol, manufactured by Kuraray Co., Ltd.) 4.00 parts PEMULEN TR-1 (acrylic acid / alkyl methacrylate copolymer, manufactured by BFGoodrich, USA) 0.10 parts polyoxyethylene (20) sorbitan tristea Rate 0.15 parts 12-stearoyl stearic acid stearyl ester 0.50 parts First of all, 5.00 parts of purified water and PEMULEN in the above components.
0.10 parts are stirred at room temperature and left for 10 hours to form an aqueous solution, and the other components are heated and stirred to uniformly mix,
An aqueous solution of PEMULEN was added and the mixture was stirred at a low speed to obtain a cloudy white cosmetic.

Comparative Example 1 A brown cosmetic composition was obtained in the same manner as in Example 1 except that the polyoxyethylene (6) sorbitan monostearate of Example 1 was replaced with decaglyceryl pentaoleate.

Comparative Example 2 A cloudy white cosmetic composition was obtained in the same manner as in Example 2 except that the stearyl glyceryl ether isostearate of Example 2 was replaced with myristyl myristate.

Comparative Example 3 A blue cosmetic composition was obtained in the same manner as in Example 3 except that the 12-stearoylstearic acid isostearyl ester of Example 3 was replaced with isocetyl isostearate.

Comparative Example 4 A brown cosmetic composition was obtained in the same manner as in Example 4 except that liquid paraffin was used instead of the polyoxyethylene (20) sorbitan tristearate and 12-stearoyl stearate stearyl ester of Example 4. It was

[0026]

The following tests were conducted on the cosmetics obtained from Examples 1 to 4 and Comparative Examples 1 to 4, and the results are shown in Table 1.
Shown in

Test 1 Adhesion The prepared cosmetic was applied to the cheek in a circular shape with a radius of 3 cm, and 1
After the time-drying, the constant motion of moving the cheek such that the entire film formed reciprocates left and right was repeated 50 times. as a result,
The number of operations was confirmed when 1/10 or more of the area of the film was peeled from the cheek. Adhesion is considered to be good when 1/10 or more of the entire film does not peel off even after repeating the above operation 30 times.

Test 2 Peelability The prepared cosmetic was applied to a square of about 2 cm square on the skin of 30 monitors using a spatula, dried for 1 hour, and after a film was formed, all were peeled off, and one sheet was completely removed. The number of films that could be peeled off as a film was confirmed.

Test 3 Stickiness Feeling The skin after peeling all the films in Test 2 was touched with a finger, and the number of film peeling marks which were felt to have no stickiness due to the residue was confirmed.

[0030]

[Table 1]

As described in detail above, the cosmetic composition according to the present invention has such adhesiveness that it is less likely to be peeled off from the skin even when the skin moves, and when peeled off, it can be peeled off at once as a single film. Moreover, it forms a film having a good feeling of use with almost no residue on the skin after peeling.

Claims (1)

[Claims] 1. Polyoxyethylene sorbitan stearate, aliphatic glyceryl ether isostearate, 1
A cosmetic comprising at least one kind selected from a fatty acid ester of 2-stearoylstearic acid, water, and a water-soluble polymer.