JPH02229106A - Solid cosmetic - Google Patents

Abstract

PURPOSE:To obtain a solid cosmetic, good in spreading, excellent in makeup persistence and capable of blending a large amount of powder by blending a lipophilic ester and silicone oil with a solid cosmetic consisting essentially of an oil containing a polyvalent metal salt of a dialkyl phosphate and pigment. CONSTITUTION:A solid cosmetic consisting essentially of (A) 0.1-10wt.% polyvalent metal salt of a dialkyl phosphate, (B) 0.1-10wt.% one or two or more lipophilic esters selected from dextrin ester, sucrose ester and cholesterol ester of fatty acids, (C) 1-30wt.% silicone oil, (D) 15-90wt.% cosmetic oil which is liquid or semisolid at ambient temperature and (E) 5-90wt.% pigment. The above-mentioned cosmetic is excellent in extensibility and makeup persistence with light spreading without causing cracking and capable of blending a large amount of powder therewith. Thereby, high covering power can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a solid cosmetic, and more particularly to a solid cosmetic that spreads well, has good makeup retention, has good covering power, and does not ooze out oil.

[Conventional technology and its problems]

Solid cosmetics generally consist of solid oil or oil gelling agents,
It is a chemical t1tJ4 containing liquid oil and pigment as main components, and is filled into a container such as a medium plate by pouring and molding, and is mainly used for make-up.

Solid cosmetics conventionally called oil-based types are cosmetics that generally have a content of 40 to 70% by weight of the solid oil or oil gelling agent and liquid oil, and 25 to 65% of pigment. It is prized during the fall and winter seasons when skin tends to be dry.

However, this product had the disadvantage that a product that was soft and spreadable had a very strong oily feel, while a product that had a suppressed oily feel was heavy and spread unevenly.

[Indispensable means to solve problems]

Under such circumstances, the present inventor conducted intensive studies and found that by blending a lipophilic ester and silicone oil into a solid cosmetic whose main ingredients are an oil agent containing a dialkyl phosphate polyvalent metal salt and a pigment, The present invention was completed based on the discovery that it is light and spreadable, has excellent spreadability, has excellent makeup retention, does not cause cracking, and can obtain high coverage by incorporating a large amount of powder.

That is, the present invention includes the following components (8) to ([1) (8) dialkyl phosphate polyvalent metal salt 0.1 to 10% by weight (B) dex) IJ fatty acid ester, sucrose fatty acid ester, and cholesterol fatty acid ester. One or more lipophilic esters selected from
0.1-10% by weight (C) Silicone oil 1-
30% by weight (D) Cosmetic oil in liquid or semi-solid form at room temperature 15-90% by weight (B) Pigment 5-90% by weight is provided as an essential component. It is.

The dialkyl phosphate polyvalent metal salt which is the component (A) of the present invention has, for example, the following general formula (1) to OR.

(In the formula, R1 and R2 are saturated or unsaturated straight or branched hydrocarbon groups having 8 to 36 carbon atoms, which may be the same or short, m is an integer of 1 to 3, and n is An integer of 0 to 2, k is 1 or 2, and β is not 0 or 1) is preferable, and one type or a mixture of two or more of these types can be used.

In formulas (1) to (II[), R1 and R2 have 8 to 3 carbon atoms.
6, and those having 12 to 22 carbon atoms are preferred. If the number of carbon atoms is less than 8, sufficient gel strength cannot be imparted to the fat or oil.

Such hydrocarbon groups include, for example, octyl, nonyl, decyl, dodecyl, undecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, hexadecyl,
Octadecyl, nonadecyl, eicosyl, heneicosyl, tocosyl, trickle, detracosyl, bentacyl, hexadecyl, hepracosyl, ophtacosyl, nonacosyl, doriacontyl, octenyl, nonenyl, decenyl, dodecenyl, undecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecyl, heptadecenyl, octadecenyl, nona Decenyl, Nycosenyl, heptadecenyl, tocosenyl, tridecenyl, tetradecyl, bentacocenyl, hexacosenyl, bentacocenyl, oftacocenyl, nonagenyl, triacontinyl, hentriacontinyl, doriacontyl, octagenyl, nonagenyl, decagenyl, dodecajenyl, untecachenyl, tridecajenyl, tetradecienyl, hantacontinyl, to -1-"1 dicacienyl, hebutatecachenyl, octadecagenyl, nonadecagenyl, eicosagenyl, heneicosagenyl, docosagenyl, tricosagenyl, tetracosagenyl, pentacosagenyl, heptacosagenyl,
heptacosagenyl, octacosagenyl, nonacosagenyl, triacontagenyl, hentriacontagenyl, triacontagenyl, 2-hexyldecyl, 2
-octylundecyl, 2-decyltetradecyl, 2-
Examples include undecylhexadecyl and 2-tetradecyloctadecyl groups.

The amount of the dialkas earth metal salt blended is 0.1 to 10% by weight, preferably 1 to 10% by weight based on the total amount of the solid cosmetic of the present invention.
It is 6% by weight.

The lipophilic ester of component (0) is selected from dextrin fatty acid ester, sucrose betide fatty acid ester, and cholesterol fatty acid ester, and the fatty acid forming the ester preferably has 12 to 8 carbon atoms, and dextrin, Preferably, most of the hydroxyl groups of sucrose and cholesterol are esterified with the fatty acid.

(11) The blending amount of the component is 0 in the total amount of the solid cosmetic of the present invention.
．． It is 1 to 10% by weight, preferably 0.1 to 5% by weight.

The silicone oil of component (C) is not particularly limited, but for example, the following general formula (rV), (V) (wherein, X represents a hydrogen atom or a trimethylsilyl group, and p represents an integer from 10 to 100) ( (wherein, q represents an integer of 3 to 6) A silicone oil represented by the following is preferred. These are 1 type or 2
A mixture of more than one species can be used.

The blending amount of component (C) is 1 to 3 in the total amount of the solid cosmetic of the present invention.
0% by weight, preferably 3-10% by weight.

Component (D), a cosmetic oil that is liquid or semi-solid at room temperature, includes vegetable oils, animal oils, mineral oils, synthetic ester oils, etc., which are generally used in cosmetics.Specifically, examples include olive NH, jojoba oil, etc. , castor oil, lanolin and derivatives thereof, squalane, liquid paraffin, petrolatum, trimethylolpropane triisostearate, isopropyl myristate, glycerol treat, pentaerythol tetra-2-ethylhexanoate, and the like. These may be used alone or in combination of two or more. Among these cosmetic oils, non-polar fluid oils such as liquid paraffin and squalane are particularly important (
Addition of component 8), a polyvalent metal salt of dialkyl phosphate, exhibits high gel strength, oil retention, and body shape, which is preferable.

The blending amount of component (D) is 15% of the total amount of the solid cosmetic of the present invention.
-90% by weight, preferably 20-85% by weight.

The pigment of component (B) used in the present invention is a pigment generally used in cosmetics, such as extender pigments such as talc, mica, clay, kaolin, sericite, nylon powder, zinc white, titanium oxide, and zinc oxide. Inorganic pigments such as iron and ultramarine, pearl pigments such as titanium-mica pearl pigments, and Red No. 202, Red No. 204, Red No. 226, Orange 20
Examples include organic pigments such as No. 1, Blue No. 404, and Yellow No. 401. In the present invention, one or more of the two types may be arbitrarily selected and used.

The blending amount of component (B) is 5 to 5% of the total amount of the solid cosmetic of the present invention.
90% by weight, preferably 10-85% by weight.

The solid cosmetic of the present invention may be composed of only the above-mentioned eight ingredients, but may also include a nonionic surfactant and ingredients commonly used in cosmetics, such as water, preservatives, antibacterial agents, pigments, and fragrances. , ultraviolet absorbers, moisturizing ingredients, metal ion sequestrants, medicinal agents, etc., or two or more of them may be blended within a range that does not impair the effects of the present invention.

In addition to the lipophilic Nisdel of component (8), -
Solid fats used in cosmetics, such as solid paraffin, stearic acid, multi-wax, candelilla wax, beeswax, peace wax, carnauba wax, wood wax,
It is also possible to adjust the hardness of solid cosmetics by blending one or more types of rice bran wax.

In that case, the blending amount is 0.1 to 5% by weight, preferably 0.5% by weight.
It is 5 to 3% by weight.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited thereto.

In addition, in the following examples, the following evaluation criteria were used for evaluation.

Sensory evaluation of longevity and makeup durability> A panel of 30 women aged 20 to 50 years old used the cosmetics and gave them a five-point rating (excellent, excellent,
◎ if 60% or more of all panelists rate it as excellent or very good; 0.40% if 40% or more but less than 60%.
Cases where the value was less than 1 were evaluated as ×.

Evaluation of oil exudation and shape retention〉 Store the cosmetic in a constant temperature room at 40℃ and 70% humidity for one month.
If oil oozing is not observed, mark it as ○, if it is observed, mark it as ×.For shape retention, visually observe it, and mark it as ◎ if it is quite good, mark as ○ if it is excellent, or mark as × if it is poor. evaluated.

Example 1 A foundation having the following composition was manufactured by the following manufacturing method and evaluated. The results are shown in Tables 1 to 3.

The values in Tables 2 and 3 are based on 100 female panelists between the ages of 20 and 50 who used either the inventive product or comparative products A and B and supported whichever they thought was better. This is the support rate (%).

Manufacturing method> After thoroughly stirring and mixing all the ingredients other than the fragrance, dissolve by heating (70 to 100°C), then add the fragrance,
The mixture was stirred and mixed again, filled into whole blood, cooled, and used as a cosmetic.

Table 1 Table 2 Table 3 Examples 2 to 3 Almost red eyeliners having the following compositions were produced in the same manner as in Example 1 and evaluated. The results are shown in Tables 4 and 5.

Habonoku (product of the present invention) (wt%) 2.0 0.5 0.3 2.8 0.2 Appropriate amount 54.0 14.0 Liquid paraffin methylpolysiloxane distearyl phosphate aluminum sucrose fatty acid ester 12 Rice starch Red No. 202 Blue No. 404 Flavor Talc Kaolin Oxide Titanium 8-1013 (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) Eyeliner (product of the present invention) (wt%) Light liquid isoparaffin 80.1 Methylpolysiloxane 3.5 Distearyl Aluminum phosphate 3.0 Beeswax microcrystalline wax Organic bentonite Titanium oxide carbon black Preservative 0.5 2.0 Appropriate amount Total *2) Mixture of stearic acid, palmitic acid, acetic acid, Nisdel [Sugar wax Below margin Table 5 [Invention] Effects] The cosmetic of the present invention is a solid powder cosmetic that has excellent spreadability, makeup retention, and covering power that cannot be obtained with conventional solid powder cosmetics, and does not ooze out oil.

that's all

Claims (1)

[Scope of Claims] 1. Components (A) to (E) (A) 0.1 to 10% by weight of dialkyl phosphate polyvalent metal salt (B) Selected from dextrin fatty acid ester, sucrose fatty acid ester, and cholesterol fatty acid ester (C) 1 to 30% by weight of silicone oil (D) Oil agent for cosmetics that is liquid or semi-solid at room temperature 15
~90% by weight (E) A solid cosmetic comprising 5~90% by weight of pigment as an essential component.