JPH0393709A - Pack agent for film forming type make-up - Google Patents

Abstract

PURPOSE:To obtain a pack agent for film forming type make-up having good spread, excellent feeling in transparency and wetness, comprising two-pack type of a specific polyethylene octyl dodecyl ether and a film-forming agent. CONSTITUTION:A two-pack type pack agent comprising a first agent containing polyethylene octyl dodecyl ether having 10-100 polymerization mols of ethylene oxide and a second agent of a film-forming agent (e.g. aqueous solution of polyvinyl alcohol or polyvinyl pyrrolidone). This pack agent is a new two component-based pack agent comprising the first agent composed of transparent gel and the second agent composed of the transparent film-forming agent. When used, first the first agent is applied to the surface of a face, successively the second agent is applied thereto (the two agents are mixed, turned into white and then made transparent by drying, therefore releasing time is clarified) and released after drying.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cosmetic backing agent. More specifically, the present invention relates to a two-part film-forming cosmetic pack.

[Conventional technology]

There are also types of packs that do not leave a film after drying, but
In comparison, film-forming backing agents allow moisture that evaporates from the skin surface to stay under the backing layer due to the shielding effect of the pack, softening the surface stratum corneum and expanding the skin pores, resulting in Since the active ingredients in the bag can easily penetrate into the skin, the pack's original effects are strongly demonstrated. Therefore, currently as a pack agent,
Such film-forming backing agents are often used.

However, these known backing agents have several drawbacks, such as being painful when peeled off from the skin, having a weak moisturizing sensation, making it difficult to confirm whether or not they have dried, and easily causing separation phenomena such as floating of oil. However, the applicant's Japanese Patent Application Laid-open No. 6
No. 3-57508 proposed a two-pack type backing agent that solved these problems.

Although the problems of these film-forming backing agents have been solved to some extent, further improvements have been desired since the gel of the first agent does not spread well and has poor transparency.

[The problem that the invention attempts to solve]

The purpose of the present invention is to improve spreadability and transparency, which are the drawbacks of conventional two-component cosmetic film-forming backing agents, and to achieve good spreadability, excellent transparency, and excellent dewy feeling. An object of the present invention is to provide a cosmetic film-forming backing agent.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present inventors conducted intensive research on various raw materials and found that polyoxyethylene octyl dodecyl ether met the above-mentioned purpose as a raw material superior to polyglycerin fatty acid ester. completed.

That is, in the present invention, the number of polymerized moles of ethylene oxide is 10.
This is a film-forming cosmetic backing agent consisting of a first part containing polyoxyethylene octyl dodecyl ether of ~100 and a second part containing a film-forming agent.

The number of polymerized moles of ethylene oxide is 10 to 50
is even more preferable. Polyoxyethylene octyl dodecyl ether having the same number of polymerized moles may be used alone, or raw materials having different numbers of polymerized moles may be used in combination, but it is necessary to select it in consideration of the combination with other raw materials.

Although there is no problem in using polyglycerol fatty acid ester in combination with this polyoxyethylene octyl dodecyl ether, it goes without saying that if the amount of polyglycerol fatty acid ester is too large, the advantages of the present invention cannot be utilized.

The first agent, the transparent gel, is made from polyoxyethylene octyl dodecyl ether, as well as oils and polyhydric alcohols.The oils include solid, paste, or liquid cosmetic oils used in cosmetics. But all can be used. For example, cosmetic liquid oil agents include cosmetic liquid hydrocarbons such as squalane, liquid paraffin, and pristane; cosmetic liquid esters such as octyldodecyl myristate, isobrobyl myristate, and octyldodecyl wasinolate; coconut oil, and jojoba oil. ,olive oil,
Cosmetic liquid animal and vegetable oils such as almond oil, turtle oil, and orange roughy oil; cosmetic liquid triglycerides such as caprylic caproic acid triglyceride; these may be used alone or in mixtures of two or more thereof.

However, solid or paste-like oils can also be used, but if all the oils are replaced with these, the hardness of the gel will be too high to be useful.

In addition, a better gel is formed by combining a hydrocarbon-based oil and a triglyceride than by using a single raw material.

Polyhydric alcohols include glycerin, 1,3 butylene glycol, propylene glycol, diglycerin, dipropylene glycol, polyethylene glycol (with a molecular weight of 2
00 to 600), sorbitol, Marpit, etc. can also be used.

However, glycerin forms the best gel.

It goes without saying that polyhydric alcohols may be used alone or in combination of two or more.

Furthermore, when adding water, care must be taken, since gelling properties or transparency will be impaired if water is added in an amount of about 10 to 20% by weight or more, although it depends on the type of oil agent and the amount used. The water content suitable for gelation is about 0.5 to 8% by weight,
A more preferred water content is about 2-5% by weight.

In addition to these, the effect as a backing agent can be further enhanced by adding oil-soluble drugs such as vitamin E, vitamin A, and dipalmitic acid.

To prepare the first agent, use the conventional method to heat drugs that require heating depending on the type of drug, add other drugs to increase melting or fluidity, mix thoroughly, and cool. , thus a transparent gel is obtained. The mixing ratio of each drug is, for example, as follows.

Polyoxyethylene octyl dodecyl ether 2-30
% by weight, preferably 5-15% by weight; 0 polyhydric alcohols
．． 5-40% by weight, preferably 5-25% by weight; cosmetic oils and fats 20-95% by weight, preferably 50-80% by weight;
Water 20% by weight or less.

The mixing ratio is usually appropriately selected within the above range, but if necessary, a necessary mixing ratio may be adopted without being limited to the above range.

The second agent is an aqueous solution of a film-forming agent, and polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl monomer carboxymethylcellulose, and others can be used alone or in combination as the film-forming agent.

The content of the film forming agent is 0.5 to 50% by weight, preferably 2 to 30% by weight.

It is also possible to further appropriately add water-soluble drugs, ethanol, polyhydric alcohols, preservatives, etc. to the second agent.

Examples of water-soluble drugs include vitamin C1 derivatives, aloe extract, royal jelly, placenta extract, honey, brown sugar, other animal and plant components, and conchiolin hydrolyzate.

Conchiolin hydrolyzate refers to all hydrolysates of conchiolin, but for example, conchiolin is decomposed with hydrochloric acid, the hydrochloric acid is removed, and then ultrafiltrated, or conchiolin is decomposed with sulfuric acid and then treated with strong acidic pH. The first stage of neutralization is carried out so that the pH is slightly acidic, and then the second stage of neutralization is carried out so that the pH becomes slightly acidic near neutral, and the generated precipitate is removed. It is an extremely safe cosmetic ingredient that has excellent skin conditioning effects and is made by removing polymeric peptides that cause redness.

The pack agent according to the present invention is a novel two-part backing agent composed of a first agent consisting of a transparent gel and a second agent consisting of a transparent film forming agent.

In use, first the first agent is applied to the skin surface, then the second agent is applied thereon, dried, and peeled off after a required period of time.

When the second agent is applied, the two liquids are mixed and become cloudy, and when dry, they become transparent, which makes it clear when it is time to peel them off.

In addition, even after applying the second agent, the first agent forms a thin film on the skin, which improves the moisturizing feeling and eliminates irritation and pain when peeling off. .

Furthermore, since the backing agent is separated into a two-component system, separation phenomena such as floating of the oil agent are prevented.

In addition to the effects of the two-component pack agent, the pack agent of the present invention spreads much better and the transparency is also greatly improved. Also, the moist feeling becomes better.

〔Example〕

EXAMPLES The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited to these Examples in any way.

(Example 1) First agent A) polyoxyethylene octyl dodecyl ether (2
0E. 0. ) 1 0% by weight Glycerin 15% by weight B) Squalane 50% by weight Caprycabroic acid triglyceride 20% by weight Purified water
5% by weight A) was dissolved by heating,
Add B) slowly while stirring and cool.

Second component Polyvinyl alcohol 15% by weight Glycerin 5% by weight Ethanol 5% by weight Preservative
Appropriate amount of vitamin C derivative
Appropriate amount of purified water (Example 2) First agent A) Polyoxyethylene octyl dodecyl ether (5
E. O. ) Polyoxyethylene octyl dodecyl ether (50E.0.) 1.3 Butylene glycol glycerin B) Liquid paraffin octyl dodecyl myristate Dissolve purified water A) by heating, add and cool.

Second Part Polyvinyl Alcohol Vinyl Acetate Emulsion PEGIOOO Ethanol Preservative 10% by weight 5% by weight 15% by weight 45% by weight 15% by weight 5% by weight Stir B) slowly 75% by weight 5% by weight 12% by weight 10% by weight 5% by weight 5% by weight Appropriate amount Vitamin C derivative Appropriate amount Bra center extract Appropriate amount Purified water
68% by weight (Example 3) First agent A) Polyoxyethylene octyl dodecyl ether (
1 5E. 0. ) 12% by weight Glycerin 15% by weight Propylene glycol 5% by weight B) Squalane 50% by weight Olive oil
6% by weight 2-ethylhexanoic acid triglyceride 7% by weight purified water'
5% by weight of A) is dissolved by heating, B) is slowly added while stirring, and the mixture is cooled.

Second component Polyvinyl alcohol 12% by weight Vinyl acetate emulsion 12% by weight Carboxymethyl cellulose 10% by weight Nylon powder 5% by weight Preservative
Appropriate amount of placenta extract
Appropriate amount of purified water
The effect of the pack agent of Example 1.2.3 described at 61% by weight or more was investigated by a panel test together with the back agent of Comparative Examples 1 and 2.3 described below.

Female panels aged 18 to under 20, 20s, 30s, 40s, and 50 and over 5, 20, 20, and 20 respectively
A total of 75 people (10 people) used the pack, and a sensory test was conducted to evaluate the moist feel, spreadability, and transparency. The results are shown in Table 1.

(Comparative Example 1) A pack agent was prepared by replacing polyoxyethylene octyl dodecyl ether in Example 1 with decaglycerin monostearate.

(Comparative Example 2) A pack agent was prepared by replacing polyoxyethylene octyl dodecyl ether in Example 2 with decaglycerin monomyristate.

(Comparative Example 3) A pack agent was prepared by replacing the polyoxyethylene octyl dodecyl ether of Example 3 with decaglycerin monostearate.

From the above results, it can be seen that the moist feeling is slightly improved, and the spreadability and transparency are significantly improved.

Furthermore, the elongation can be evaluated using a friction tester (Kato Tech Co., Ltd.)
ES-SE).

Measurement conditions 1. Object to be coated: Porous PVA thickness: 1:2. Application amount - 0.5ml 3. Application area-3X5cm 4. Friction element-1 0 X 1 0 m+i 0.5m+
5. Arrange 20 Iφ piano wires perpendicular to the moving direction.
Weight -25g 6. Movement speed - 1/see 7. Measurement method: Measurement was carried out for 20 seconds starting 5 seconds after the start of movement.

8. Measurement sensitivity -20 g/v Note that the variation is the value obtained by dividing the integrated difference between the actual measurement value and the average value by time after removing fluctuations of IHz or higher.

The measurement results are shown in Table 2.

However, only the gel of the first agent was used for the measurement.

The backing agent of the present invention has a smaller coefficient of friction than the comparative example. In other words, it objectively proves that the product spreads well.

〔Effect of the invention〕

In the present invention, Japanese Patent Application Laid-open No. 63-575 by the present applicant
Similar to the two-component bag of the film-forming cosmetic backing agent of Publication No. 08, it has a good moist feeling, there is no pain when peeling off, it is easy to determine when it is dry, and there are no separation phenomena such as floating of oil. It was possible to obtain a pack agent that maintains excellent properties such as no dryness, while also significantly improving the spreadability and transparency, which are important for cosmetics, and further increasing the moisturizing feel.

Claims (1)

[Claims] A film-forming cosmetic pack comprising a first part containing polyoxyethylene octyl dodecyl ether having a polymerized mole number of ethylene oxide of 10 to 100, and a second part containing a film-forming agent.