JPS6075405A - Powdery solid cosmetic - Google Patents

Abstract

PURPOSE:To provide a powdery solid cosmetic effective to remarkably improve the irritation to the skin and to suppress the drying of the skin, by adding a specific amount of a humectant to a powdery solid cosmetic containing specific amounts of powder and an oil component containing an oil-gelatinizing agent. CONSTITUTION:The objective powdery solid cosmetic contains (A) 30-70wt%, preferably 40-60wt% oil component containing an oil-gelatinizing agent, (B) 0.5-25wt%, preferably 3-20wt% humectant such as polyhydric alcohol having two or more hydroxyl groups, a lactate, a pyrrolidonecarboxylic acid salt, a hyaluronic acid salt, a chondroitin sulfate, an amino acid salt and/or urea, etc. and (C) 25-65wt%, preferably 35-55wt% powder, as essential components. The addition of the humectant is effective to remarkably improve the safety to the skin, to suppress the drying of the skin, and to keep the skin in a refreshing and moistened state.

Description

Detailed Description of the Invention The present invention provides moisturizing agents such as polyhydric alcohols, lactates, pyrrolidone carboxylates, hyaluronates, chondroitin sulfates, amino acid salts, and urea having two or more hydroxyl groups in the molecule. The present invention relates to a solid powder cosmetic containing powder and an oil containing an oil gelling agent as main components.

Here, solid powder cosmetics are mainly used for make-up, and contain solid oils or oils and powders containing oil gelling agents as main ingredients, and are filled into containers such as medium plates by pouring and molding. Apply cosmetics. The contents of the solid oil or the oil containing the oil gelling agent and the powder are generally 30 to 70% by weight and 65 to 25% by weight, respectively. Conventionally, this type of solid powder cosmetic has been called an oil-based foundation, and has been popular during the fall and winter seasons when skin tends to be dry. However, because this type of solid powder cosmetic has a high oil content, many consumers complain of irritation such as itching and stinging when used on the skin, and improvements have been desired. In addition, this type of solid powder cosmetic only prevents moisture from evaporating from the skin by the sealing effect of the oil containing the solid oil, and does not have an active moisturizing effect, so it may not be particularly effective if the skin is dry. It is still not enough to keep the skin moist and fresh during the autumn to winter season, when skin tends to be moist and fresh.

The inventors of the present invention conducted extensive research in view of the above circumstances, and as a result,
Surprisingly, when a moisturizer is added to a solid powder cosmetic containing oil and powder containing the oil gelling agent mentioned above, it is possible to significantly improve skin irritation, suppress dryness, and moisturize the skin. They have discovered that the purpose of keeping the food fresh and fresh has been achieved, and have completed the present invention.

That is, the present invention is a solid powder cosmetic characterized by containing the following three components.

(A) Oil content including oil gelling agent 30-70% by weight (B)
Humectant: 0.5-25% by weight (C) Powder: 25-65% by weight Below, the structure of the present invention will be described.

The oil gelling agent used in the present invention includes dibenzylidene sorbitol, tribenzylidene sorbitol, a condensate of dibenzylidene sorbitol and a polyhydric alcohol having a valence of 5 or more, calcium stearate, calcium palmitate, lithium 2-ethylhexanoate, 12 - N such as metal soaps such as aluminum hydroxystearate, lauroylglutamic acid dibutylamide, lauroylglutamic acid stearylamide diproyllidine laurylamide, cicabroyllidine laurylamine salt, cicabroyllidine lauryl ester, cicabroyllidine lauroylphenylalanine laurylamide, etc. - Derivatives such as acid, ester, and amine salts of acylamino acids, degree of ester group substitution 1.0
These include dextrin fatty acid esters and 12-hydroxystearic acid, which are composed of the starch saturated fatty acid ester hydrolysates mentioned above.

One or more of the above may be arbitrarily selected and used in the solid powder cosmetic of the present invention.

The blending amount of the oil gelling agent is 1 to 60% by weight based on the total amount of the solid powder cosmetic of the present invention.

The oils used in the present invention are oils commonly used in cosmetics, such as vegetable oils, animal oils, mineral oils, synthetic ester oils, and synthetic silicone oils. Examples of these include, for example, olive oil, jojoba oil, castor oil, lanolin and its derivatives, squalane, liquid paraffin, petrolatum, trimethylolpropane triisostearate, glycerol tri-2-ethylhexanoate,
Examples include pentaerythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, and polyphenylmethylsiloxane. In the present invention, one or more of these may be arbitrarily selected and used.

The amount of the total oil content including the oil gelling agent is 35 to 70% by weight, preferably 40 to 6% by weight based on the total amount of the solid powder cosmetic of the present invention.
It is 0% by weight.

The humectants used in the present invention are ethylene glycol, polyethylene glycol, propylene glycol, 1.3-
Polyglycerin such as butylene gellicol, 1,4-butylene gellicol, dipropylene glycol, glycerin, diglycerin, triglycerin, tetraglycerin,
Glucose, maltose, xylitol, sorbitol, maltose, malditol, sucrose, fructose,
Polyhydric alcohols with two or more hydroxyl groups in the molecule such as xylitol, sorbitol, maltotriose, threitol, erythritol, starch-degrading sugar, starch-degrading sugar-reduced alcohol, lactate, pyrrolidone carboxylate, hyaluronate, chondroitin These include sulfates, amino acid salts, urea, etc. In the present invention, one or more of the above may be arbitrarily selected and used.

The blending amount is 0.5 to 25% of the total amount of the circular powder cosmetic of the present invention.
% by weight, preferably 3-20% by weight.

The powder used in the present invention includes powders generally used in cosmetics, such as extender pigments such as talc, mica, clay, and kaolin, inorganic pigments such as titanium oxide, zinc white, iron oxide, and ultramarine, and titanium-mica powders. Examples include bar pigments such as thread pearl pigments, and organic pigments such as Red No. 226, Blue No. 404, and Yellow No. 401. In the present invention, one or more of the above powders may be arbitrarily selected and used.

The blending amount is 25 to 65% by weight, preferably 35 to 55% by weight, based on the total amount of the solid powder cosmetic of the present invention.

The solid powder cosmetic of the present invention may be composed only of the above-mentioned essential ingredients, but in addition, polyhydric alcohol fatty acids such as sorbitan fatty acid ester, glycerin fatty acid ester, sorbitol fatty acid ester, polyglycerin fatty acid ester, sugar fatty acid ester, etc. POE polyhydric alcohol fatty acid esters such as esters and polyoxyethylene (hereinafter abbreviated as POE) sorbitan fatty acid esters, POE glycerin fatty acid esters, POE sorbitol fatty acid esters, POE polyglycerin fatty acid esters, POE sugar fatty acid esters, hydrogenated castor oil derivatives, etc. If one or more nonionic surfactants are blended,
The powder wets well with oil, making manufacturing and filling operations easier. ” - Among the surfactants mentioned above, it is particularly oil-soluble,
And it is preferable that it is liquid at room temperature. Moreover, the solid powder cosmetic of the present invention can be produced by sequentially mixing the above-mentioned essential components without any special considerations, but it can be produced even more stably by using the following production method using the above-mentioned surfactant. Solid powder cosmetics can be produced. That is, first, a surfactant and a humectant are stirred and mixed, and an oil component is added to this mixed solution to produce a gel. This method further includes the steps of adding powder to the Rin gel, heating after mixing, adding an oil gelling agent dissolved by heating in the same manner, and cooling.

When the above-mentioned surfactant is blended, the blending amount is generally 0.1 to 5% by weight based on the total amount of the solid powder cosmetic of the present invention.

In addition to the two essential ingredients and surfactants, the solid powder cosmetic of the present invention includes common ingredients used in cosmetics, such as water, preservatives, bactericides, pigments, fragrances, ultraviolet absorbers, and drugs. , metal ion sequestering agents, etc., may be added within a range that does not impair the effects of the present invention.

Naturally, in addition to the oil gelling agent, melting point 4
Solid oils above 0°C, such as cetyl alcohol, stearyl alcohol, stearic acid, behenic acid, solid paraffin, microcrystalline wax, polyethylene powder, candelilla wax, peace wax, carnauba wax, Balikowasox, hardened mustard oil, etc. Alternatively, the hardness of the solid powder cosmetic of the present invention can be adjusted by blending two or more kinds. In that case, the total amount of the solid oil and oil gelling agent is preferably within 60% by weight.

As mentioned above, conventional solid powder cosmetics have been formulated with solid oil or oil containing an oil gelling agent, powder, and other additives as necessary, but those containing moisturizers are There were none. The present invention is the first to incorporate a moisturizing agent into the solid powder cosmetic, which not only greatly improves skin safety, but also suppresses dryness of the skin and is an innovative product that keeps the skin moist and fresh. It can be said to be a solid powder cosmetic.

Next, the present invention will be explained in more detail based on Examples.

The blending amount is in weight%.

Example 1 Foundationage 9 ■Liquid paraffin 50 ■Polyethylene glycol 4001 ■Mica -9 ■Ditane oxide 15 ■Iron oxide (red, yellow, black) 5 ■Dextrin fatty acid ester 10 Production method A stirring mixture of ■～■ Add ■～■ and heat to 70℃. To this was added (1) which had also been heated and dissolved at 70°C, and after stirring and mixing, the mixture was poured into a medium plate and cooled.

Comparative Example 1 Polyethylene glycol 400 was removed from Example 1 (
Comparative Example 1 was obtained in the same manner as in Example 1 except for the substitution with liquid paraffin.

Example 2 Example 2 was obtained in the same manner as in Example 1, except that the amount of Foundation Silon Polyethylene Glycol 400 was adjusted to 3% by weight using liquid paraffin.

Example 3 Example 3 was obtained in the same manner as in Example 1, except that the amount of foundation polyethylene glycol 400 was adjusted to 25% by weight with liquid paraffin.

Effect (1) Test method Example 2.3 or Comparative Example 2 was applied at 0.05% to the back skin of 2-month-old hairless mice (3 mice per sample).
m1. Apply 5 times per week, total 1 per 2 weeks.
0 applications were made. For skin reactions, determine the degree of skin roughness and desquamation according to the following criteria immediately before applying the test substance every day.

One that shows no change at all------
−−−−−・−〇Slight changes observed−−−
----------1--i.Things in which obvious changes are observed-------------2.Things in which significant changes are observed------------------------ ---3 Those in which very significant changes are observed -----------4 Add up the skin roughness and desquamation judgments made 10 times in total for each animal, and divide this by the number of animals. The average value was taken as skin irritation.

(21 Results Example 1 −−−−−−−−−−−−−−−−−−−
------1-------2, 5 Example 2-----
−−−−−−−−−−−−−−−−−−−1.5
Example 3 −−−−−−−−−−−−−−−−−−
---------------------1.0 Comparative Example 1. −−−−−−−−−
1------・----------1----------
--It is clear that the skin safety is significantly improved by incorporating the 4,0 humectant.

Example 4 Foundation ■Liquid paraffin 33 ■Diglyceryl diisostearate 21 ■1,3-butylene glycol 10 ■Mica 25 ■Titanium oxide 15 ■Iron oxide (red, yellow, black) 5 ■Dibenzylidene sorbitol 10 Production method ■～■ Add ■ to and mix thoroughly. This was added to ■■■ mixed and dissolved at 70°C, stirred and mixed, filled into a medium dish, and then cooled.

Comparative Example 2 Comparative Example 2 was obtained in the same manner as in Example 4, except that the foundation 1.3-butylene glycol was removed (replaced with liquid paraffin).

effect +1.1 Usage feeling A usage test was conducted with 20 women aged 20 to 40.

As a result, 15 people said that Example 1 was more moist than Comparative Example 1, 5 people said that it was about the same, and 0 people said that Comparative Example 1 was more moist than Example 1. Obviously, Example 1 was superior.

(2) Moisturizing effect Example 1 and Comparative Example 1 were applied once in the morning and afternoon to each side of the faces of 10 women aged 20 to 40 years old, and this was continued for one week. One week later, the side to which Example 1 was applied was the same as Comparative Example 1.
9 people said their skin texture was better and fresher than the side to which Comparative Example 1 was applied, and 1 person said it was the same level. 0 people responded, and Example 1 was clearly superior.

Example 5 Haboko ■Liquid paraffin 50 ■Polyethylene glycol 4000 4■Mica 5 ■Kaolin 10 ■Titanium oxide 5 ■Mica-titanium pearl pigment 5 ■Red No. 204 1 ■Lauroylglutamate dibutylamide 20■■ at 70°C Stir and dissolve, and maintain this at 70°C. 3. Add and mix ① and ① to ①, which were separately stirred and mixed. After that, it was cooled and poured into a medium plate to fill it.

Example 6 Foundation ■Squalane 39 ■Sorbitan trioleate 1 ■Chondroitin sodium sulfate 20% aqueous solution 10■Talc 5 ■Mica 10 ■Titanium oxide 5 ■Iron oxide (red, yellow, black) 5 ■Dextrin fatty acid ester 20 ■Di Stir and mix benzylidene sorbitol 5 ■■. Add this to ■ and stir to mix.
Make a gel. Add ① to ② to this, stir and mix, and heat. ■■ was added to the above-mentioned heated base, heated and dissolved, and after stirring and mixing, the mixture was poured into a medium plate and cooled.

Example 7 Eye shadow ■Squalane 18 ■Dimethylpolysiloxane 10 4 ■Sorbitan sesquioleate 2 ■Glycerin 5 ■Mica 20 ■Kaolin 10 ■Titanium dioxide 10 ■Ultramarine 10 ■12-Hydroxystearic acid 15 ■■ were stirred and mixed, Add ■■ to this and stir to make a gel. ≠ After mixing the gel and ■ to ■, it was heated to 70°C, and ■, which had been similarly dissolved at 70°C, was added, mixed, and then poured into a medium plate and cooled.

Example 8 Foundation ■ Liquid paraffin 20 ■ Isopropyl myristate 10 ■ Maltitol 1 ■ Mica 25 ■ Kaolin 25 ■ Titanium oxide 10 ■ Iron oxide (red, yellow, black) 5 ■ Aluminum stearate 4 +l'i ■〜■ Stir and mix, add ■■ to this, and after stirring and mixing 70
Similarly, stir and dissolve at 70°C, add and mix the mixture, and then pour into a medium dish and cool.

Examples 4 to + were all solid powder cosmetics that had high skin safety and were excellent in the effect of keeping the skin moist and fresh.

Patent applicant Shiseido Co., Ltd. Procedure? c+Tj official text (11 issues) November 50, 1988 1. Indication of the case 1983 Patent Application No. 183954 2. Name of the invention Solid powder cosmetics 3. Person making the amendment 4. Invention of the specification subject to the amendment Detailed explanation of 6 5. Contents of correction (1) Ming 1111 'i! i' Page 3, line 6 from the bottom, "calcium, palmitic acid" has been corrected to "calcium, aluminum stearate, valmitic acid".

(2) "Dextrin fatty acid ester consisting of Zan hydrolyzate of two starch saturated fatty acid esters with a degree of ester group substitution of 1.0 or more" on page 4, lines 4 to 7 of the specification.
The statement has been corrected to read "fatty acid esters of starch and its hydrolysates."

(Margin below)

Claims (1)

[Claims] (1) A solid powder cosmetic characterized by containing the following three ingredients. (A) Oil content including oil gelling agent 30-70% by weight (B)
Moisturizer 0.5-25% by weight (C) Powder 25-65% by weight