JPH07258036A - Solid powder cosmetic - Google Patents

Abstract

PURPOSE:To obtain a cosmetic which is excellent in formability and impact resistance and also having excellent operability, transparency of the finished product and coloring properties while holding smoothness characteristic&to spherical powder and usability free from oily feeling. CONSTITUTION:This solid powder cosmetic contains 250wt.% of spherical powder based on the total amount of the cosmetic, a water-soluble polymer and an oil component. The water-soluble polymer can be selected from a mucopolysaccharide, a natural water-soluble polymer compound and a synthetic water-soluble polymer compound. Preferably, a salt of hyaluronic acid and carboxymethylcellulose sodium salt are preferable in view of formability. The compounding ratio of the water-soluble polymer is 0.1-10wt.%, preferably 0.5-5wt.%, based on the total amount of the cosmetic. The content of the oil component is as much as needed for the coloring of a color material and is not specified. However, the amount age as possible, e.g 3-5wt.%, is preferable in of view of the durability of color. As the spherical powder, powder of a resin, e.g. polyethylene, polystyrene, nylon, methyl polymethacrylate, silica, polymethylsilsesquioxane or silicone is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid powder cosmetic useful for eye shadows, blushers and the like.

[0002]

BACKGROUND OF THE INVENTION Spherical powders commonly used for eye shadows and blushers include spherical polyethylene, spherical polymethylmethacrylate, spherical polystyrene, nylon powder, spherical silica and polymethylsil. There is sesquioxane and the like, and it has been blended in an amount of about 1 to 5% by weight to obtain a smooth and non-greasy feeling. Usability is further improved by increasing the blending amount, but in general, the spherical powder is poor in moldability, and when it is blended in an amount of 10% by weight or more, the impact resistance is significantly lowered. Therefore, in order to improve the impact resistance, a method of blending a wax has been taken, but the blending of the wax impairs the smooth feeling of use, and the smooth feeling of the spherical powder cannot be obtained sufficiently. It was Further, since a large amount of wax is blended, it is necessary to blend a larger amount of oil than usual, and therefore, there is a drawback that the color tends to be distorted by the eyelid and the color lasts poorly.

The inventors of the present invention have made earnest studies in view of the above problems, and as a result, the spherical powder is 50% by weight or more with respect to the total amount.
The present invention has been completed by finding that the above problems can be solved by mixing a water-soluble polymer and an oil component.

[0004]

[Means for Solving the Problems] That is, the present invention provides a solid powder cosmetic containing spherical powder in an amount of 50% by weight or more, a water-soluble polymer, and an oil component. is there. The solid powder cosmetic according to the present invention has a smooth and non-greasy feeling in use and is excellent in impact resistance.

The structure of the present invention will be described in detail below. The spherical powder used in the present invention includes polyethylene, polystyrene, nylon, polymethylmethacrylate, silica, polymethylsilsesquioxane, silicone resin powder, etc., and the content is 50% by weight or more based on the total amount. .
If it is less than 50% by weight, the characteristic smooth and non-greasy feeling of use cannot be obtained.

The water-soluble polymer used in the present invention includes mucopolysaccharides, natural water-soluble polymer compounds, and synthetic water-soluble polymer compounds. Mucopolysaccharides include hyaluronic acid and N-
Acetylglucosamine, salts such as glucuronic acid, natural water-soluble polymer compounds such as dextrin, gelatin, casein, sodium pectate, starch, methyl cellulose, ethyl cellulose, sodium carboxymethyl cellulose, etc.Synthetic water-soluble polymer compounds such as polyvinyl alcohol, polyvinylpyrrolidone Etc., and one or more of these are used. Of these, hyaluronic acid salt and sodium carboxymethyl cellulose are particularly preferable in terms of moldability. Since polyvinyl alcohol is apt to aggregate, it is preferable to use it in combination with other water-soluble polymer.

The content of the water-soluble polymer is 0.1 to 10% by weight, preferably 0.5 to 5% by weight, based on the total amount of the solid powder cosmetic of the present invention. If the amount is less than 0.1% by weight, the moldability is poor, and if the amount is more than 10% by weight, it is not preferable from the viewpoint of how the cosmetics are applied to chips.

The oil component used in the present invention may be any of those which are usually incorporated in solid powder cosmetics.
For example, hydrocarbons such as squalane, liquid paraffin and petrolatum, higher fatty acids such as myristic acid, palmitic acid, stearic acid, oleic acid and isostearic acid, higher alcohols such as cetyl alcohol, hexadecyl alcohol and oleyl alcohol, cetyl-2. -Ethyl hexanoate, 2-ethylhexyl palmitate, 2-octyldodecyl myristate, 2-octyldodecyl gum ester, neopentyl glycol-2-ethylhexanate, triglyceride isooctylate, 2-octyldodecyl oleate, isopropyl myristate ,
Esters of isostearic acid triglyceride, coconut oil fatty acid triglyceride, etc., oils and fats such as olive oil, avocado oil, lanolin, etc., silicones such as dimethyl polysiloxane, cyclic dimethyl polysiloxane, methylphenyl polysiloxane, polyether modified silicone, amino modified silicone, etc. Is mentioned.

The content is not particularly limited as long as it is an amount necessary for coloring the coloring material, but is as small as possible from the viewpoint of color retention,
For example, 3 to 5% by weight is preferable. Conversely speaking, the solid powder cosmetic of the present invention is a technique capable of molding with such a low oil content and even when a large amount of spherical powder is blended.

The solid powder cosmetic of the present invention contains, in addition to the above-mentioned components, powders other than the above-mentioned components, preservatives, chemicals, fragrances, ultraviolet absorbers, humectants, and extender pigments in addition to the components described above. , Pearlescent agents, coloring materials, antioxidants, etc. can be added. However, the component is not limited to the above components as long as it can be applied to general cosmetics.

Examples of the powder include talc, muscovite, synthetic mica, phlogopite, phlogopite, biotite, lithia mica, sericite, permiculite, kaolin, titanium dioxide, titanium oxide-coated mica, titanium oxide-coated talc. , Titanium oxide coated bismuth oxychloride, bismuth oxychloride, fish scale foil, pearl pigment such as colored titanium oxide coated mica, aluminum powder, metal powder pigment such as copper powder, iron oxide (red iron oxide), inorganic red pigment of iron titanate, γ-Inorganic brown pigments such as iron oxide, yellow iron oxide, inorganic yellow pigments such as ocher, black iron oxide, inorganic black pigments such as carbon black, mango violet, inorganic purple pigments such as cobalt violet, chromium oxide, water Inorganic green pigments such as chromium oxide and cobalt titanate, inorganic blue pigments such as ultramarine blue and navy blue, zinc , Bentonite, barium sulfate,
Metal soap, diatomaceous earth, aluminum silicate, calcium silicate, barium silicate, magnesium silicate, strontium silicate, tungstic acid metal salt, calcium carbonate, magnesium carbonate, chromium oxide, chromium hydroxide, carbon black, alumina, Hydroxyapatite, boron nitride, silica, nylon powder, zeolite, benzoguanamine powder, tetrafluoroethylene powder, polyamide powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, cellulose powder, silicone resin powder, red 201, red 202 No. 204, Red No. 204, Red 205
No., Red 220, Red 226, Red 228, Red 405, Orange 203, Orange 204, Yellow 205
No., Yellow No. 401, Blue No. 404 and other organic pigments, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205.
No., Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203
No. 3, Green No. 3 and Blue No. 1 organic pigments such as zirconium, barium or aluminum lake, chlorophyll, β
-Natural pigments such as carotene. The spherical powder and other powders may be blended as they are, or may be blended after being subjected to a surface treatment such as a hydrophobic treatment.

The method for producing the solid powder cosmetic of the present invention is not particularly limited, but since the water-soluble polymer is blended, the powder part and the oil phase part are mixed, and the water-soluble compound prepared by dissolving in water and / or hydrous alcohol is used. A method is preferred in which a polymer is added and kneaded, then filled in a predetermined medium dish, and water and / or hydrous alcohol is removed by drying or the like. Alcohol in this case has 3 carbon atoms
Refers to the following aliphatic alcohols.

[0013]

EFFECTS OF THE INVENTION The solid powder cosmetic composition of the present invention maintains the smooth and non-greasy usability of spherical powder while maintaining moldability,
Cosmetics with excellent impact resistance. Furthermore, it is excellent in operability (applicability), transparency of finish, and color development.

[0014]

EXAMPLES Examples of the present invention will now be described, but the present invention is not limited to these.

Example 1 (eye shadow) A. Powder part Talc 37 parts Spherical polymethylsilsesquioxane 50 parts Organic pigment Appropriate amount Pearl agent Appropriate amount Preservative Appropriate amount B. Oil phase part Liquid paraffin 5 parts C. Water phase part Ion Exchanged water Appropriate amount 99% Ethanol Appropriate amount Na hyaluronate 3 parts Dipropylene glycol 5 parts Production method After mixing the powder part of A with a Henschel mixer, add the oil phase part of B to the powder part and mix evenly. Furthermore, after sodium hyaluronate and dipropylene glycol were uniformly dissolved in ion-exchanged water, 99% ethanol was added and the uniformly adjusted aqueous phase portion was added to a Henschel mixer to form a slurry.
The medium dish was filled and dried at 50 to 60 ° C. to obtain an eye shadow.

Example 2 (Eye Shadow) An eye shadow was produced in the same manner as in Example 1 according to the formulation shown in Table 1.

Comparative Examples 1, 2 and 3 In the same manner as in Example 1, eye shadows were produced according to the formulations shown in Table 1.

<Test Method> Examples 1 and 2 and Comparative Example 1,
A few eye shadows were compared for usability, makeup retention and impact resistance. The data in Table 1 was obtained by applying 30 eye panels to the left and right eyelids and testing the usability and makeup retention. The evaluation criteria are as follows. ◎: Very good ○: Good △: Bad ×: Very bad

The impact resistance was evaluated by a drop test from a height of 30 cm, and was evaluated by the number of drops of the test. The evaluation criteria are as follows. ◎: 11th or more ○: 7 to 10th △: 5 to 6th ×: 4th or less

[0020]

[Table 1]

As can be seen from Table 1, the eye shadow of the present invention is very good in usability, cosmetic durability and impact resistance as compared with the comparative example.

Example 3 Blusher Powder part Talc 14 parts Spherical polystyrene 70 parts Iron oxide red 0.5 parts Titanium oxide 2.5 parts Oil phase part Zinc myristate 5 parts Liquid paraffin 3 parts Perfume Proper amount Preservative proper amount Antioxidant proper amount Water phase part Ion-exchanged water Appropriate amount 99% Ethanol Appropriate amount Polyvinyl alcohol 5 parts (Production method) A blusher was obtained in the same manner as in Example 1. Although this powder showed some agglomeration of powder, it was usable as a blusher.

Example 4 Eye shadow powder part Spherical polymethylmethacrylate powder 45 parts Spherical polystyrene powder 40 parts Organic pigment 3 parts Pearling agent 3 parts Oil phase part Liquid paraffin 4 parts Preservative proper amount Perfume proper amount UV absorber proper amount water phase part Hydroxypropyl cellulose 5 parts Ion-exchanged water Proper amount 99% Ethanol Proper amount (Production method) In the same manner as in Example 1, eye shadow was obtained. There was no problem in moldability and impact resistance, and it had a smooth usability.

Example 5 Eye shadow Spherical silica 50 parts Mica 28 parts Ultramarine 1 part Titanium oxide 4 parts Pearling agent 2 parts Liquid paraffin 4 parts Preservative proper amount Fragrance proper amount UV absorber proper amount aqueous phase hydroxypropylcellulose 10 parts ion-exchanged water Appropriate amount 99% ethanol Appropriate amount (Production method) In the same manner as in Example 1, eye shadow was obtained. There was no problem in moldability and impact resistance, and it had a smooth usability. The color retention was also good.

Claims (2)

[Claims] 1. A solid powder cosmetic comprising 50% by weight or more of a spherical powder, a water-soluble polymer, and an oil component. 2. The solid powder cosmetic according to claim 1, wherein the water-soluble polymer is one or more selected from mucopolysaccharides, natural water-soluble polymer compounds, and synthetic water-soluble polymer compounds.