JPH0729905B2 - Manufacturing method of powder solid cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention has a transparent feeling, no powdery feeling, clean cosmetic skin, no caking, and excellent impact resistance. The present invention relates to a method for producing a powder solid cosmetic.

[Prior Art] Powder solid cosmetics contain extender pigments such as talc, kaolin, and mica, and greatly influence usability and finish. Recently, a large amount of mica has been blended because of its characteristics such as gloss, transparent finish, and good extensibility.

[Problems to be solved by the invention]

However, if a large amount of mica is blended, the cosmetics will come off too much, the moldability will be poor, and the impact resistance will decrease. In order to solve this drawback, a shaping agent such as metal soap is generally added, but the extensibility of the cosmetic composition is lowered, and further, caking occurs.

[Means for solving problems]

In view of the above situation, the present inventors have conducted earnest studies, and as a result, succeeded in developing an extremely useful cosmetic composition and completed the present invention.

That is, the present invention, after the powder cosmetics are press-molded in a medium plate, water-soluble polymer and / or water-dispersible polymer water or hydrous alcohol or solution is impregnated into the press-molded powder cosmetics, and in some cases, simply A method for producing a powdery solid cosmetic, which comprises pressing or pressing while suctioning.

Hereinafter, the present invention will be described in detail.

The present invention, by blending 0.001 to 0.02 wt% of one or more selected from the group consisting of water-soluble polymers and water-dispersible polymers, there is a transparent feeling, no powdery,
It is possible to obtain a cosmetic having a beautiful makeup skin, no caking, and excellent impact resistance.

As the water-soluble polymer used in the present invention, gum arabic,
Gums such as benzoin gum, karaya gum, cellulose derivatives such as carboxymethyl cellulose, methyl cellulose, hydroxyethyl cellulose, agar, casein,
Examples include dextrin, gelatin, pectin, sodium pectinate, starch, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidone, sodium polyacrylate, carboxyvinyl polymer, polyethyleneimine, and the like. A system emulsion etc. are mentioned. The water-soluble polymer and / or the water-dispersible polymer may be used alone or in combination of two or more. The blending amount is from 0.001
It is 0.02% by weight. If it is less than 0.001% by weight, the effect of the present invention cannot be exhibited, and if it exceeds 0.02% by weight, defects such as caking are caused, which is not preferable.

The water-soluble polymer and / or the water-acidic polymer may be added in the form of powder, but from the viewpoint of uniformity and effect, it is preferable to use water or a hydroalcoholic solution. in this case,
Method of mixing water or hydrous alcoholic solution of water-soluble polymer and / or water-dispersible polymer with powder base and drying, powder obtained by formulation excluding water-soluble polymer and / or water-dispersible polymer A method of mixing the above solution with a cosmetic base and then drying it, or a method of press-molding the above powder cosmetic base into a medium plate, impregnating with the above solution, and then drying, was tried. I found that it was the most effective. The present invention is based on this third method.

When the third method is used, after impregnation, it may be simply pressed or pressed while sucking and then dried. The water content of the hydrous alcohol is preferably 10% or more. If the water content is less than 10%, the water-soluble polymer becomes difficult to dissolve and the water-dispersible polymer becomes difficult to disperse, which is not preferable. The alcohol is preferably an aliphatic alcohol having 3 or less carbon atoms. When the carbon number is 4 or more, the drying property is poor and it is not preferable. The amount of solution to be impregnated is
It is desirable that the powder cosmetic base is 15 to 35 out parts. When the impregnated amount is less than 15 out parts, the solution does not reach the whole, and when it exceeds 35 out parts, the solution becomes too soft, cracks occur after drying, and caking is likely to occur, which is not preferable.

Further, when the medium plate molded product is impregnated with the solution, the contents may rise or crack. At this time, this phenomenon can be suppressed by making one or more holes on the bottom surface of the inner plate.

The drying may be performed as many times as water or hydroalcohol can be dried, and generally, the drying is performed at 30 to 100 ° C.

In addition to the above water-soluble polymer and water-dispersible polymer, the cosmetics of the present invention can be appropriately blended with other components usually used in cosmetics, if necessary. For example, talc, kaolin, sericite, muscovite, phlogopite, phlogopite, biotite,
Lithia mica, synthetic fluorophlogopite, vermiculite, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium silicate, calcium silicate, aluminum silicate,
Barium silicate, barium sulfate, strontium silicate,
Tungstate metal salt, silica, hydroxyapatite, zeolite, boron nitride, inorganic powder such as ceramics powder, nylon powder, polyethylene powder,
Polystyrene powder, benzoguanamine powder, polytetrafluoroethylene powder, distyrenebenzene polymer powder, epoxy powder, acrylic powder, organic powder such as microcrystalline cellulose, inorganic white pigments such as titanium oxide and zinc oxide, iron oxide (red iron oxide) ), Inorganic red pigments such as iron titanate, inorganic brown pigments such as γ iron oxide, iron yellow oxide, inorganic yellow pigments such as ocher, black iron oxide, inorganic black pigments such as carbon black, mango violet, Inorganic dyeing pigments such as cobalt violet, inorganic green pigments such as chromium oxide, chromium hydroxide and cobalt titanate, inorganic blue pigments such as ultramarine blue and dark blue, titanium oxide coated mica, titanium oxide coated bismuth oxychloride, oxychloride Pearl pigment such as bismuth, titanium oxide coated talc, fish scale foil, colored titanium oxide coated mica Aluminum powder, metal powder pigments such as copper powder, Red No. 201, Red No. 202,
Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 22
No. 8, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205,
Organic pigments such as yellow 401 and blue 404, red 3, red
104, Red 106, Red 227, Red 230, Red 401
No., Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow
Organic pigments such as 202, yellow 203, green 3 and blue 1 zirconium, barium or aluminum lake, natural pigments such as chlorophyll and β-carotene, squalane,
Liquid paraffin, petrolatum, microcrystalline wax, ozokerite, ceresin, myristic acid, palmitic acid, stearic acid, oleic acid, isostearic acid, cetyl alcohol, hexadecyl alcohol, olein alcohol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate , 2-octyldodecyl myristate, neopentyl glycol di-2-ethylhexanoate, glycerol tri-2-ethylhexanoate, 2-octyldodecyl oleate, isopropyl myristate, glycerol triisostearate, coconut oil fatty acid glycerol, tri Glycerol-2-ethylhexanoate, 2-octyldodecyl oleate, isopropyl myristate, glycerol triisostearate, tricoconut oil fatty acid Various hydrocarbons such as lycerol, olive oil, avocado oil, beeswax, myristyl myristate, mink oil, lanolin, etc., silicone oils, higher fatty acids, oils and fats esters, higher alcohols, waxes and other oily components, alkyd resins, urea resins And other resins, camphor, plasticizers such as acetoltributyl citrate, ultraviolet absorbers, antioxidants, preservatives, surfactants, humectants, fragrances, thickeners and the like.

The form of the cosmetic according to the present invention may be a block, cake, pencil or the like.

〔Example〕

Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

The performance of the cosmetics was subjected to a five-level sensory evaluation by 10 specialist panels for the items listed in the following table.

The evaluation results are shown by the following symbols based on the average value of 10 persons.

◎ …………… 4.5 to 5.0 ○ ……………… 3.5 to less than 4.5 △ ……………… 2.5 to less than 3.5 × ……………… 1.5 to less than 2.5 ×× ………… 1.0 to less than 1.5 Regarding impact resistance, 10 pieces when set in a container and dropped laterally from a height of 60 cm onto an iron plate, 6 or more abnormalities were observed × 5 or less ○ And

Example 1 Powder Foundation A powder foundation x according to the present invention was prepared from the following components.

(Wt%) 1. Titanium oxide 8 2. Talc 8.99 3. Muscovite 65 4. Nylon powder 2 5. Red iron oxide 0.5 6. Yellow iron oxide 1 7. Black iron oxide 0.1 8. Dimethylpolysiloxane (5cs) 5 9. 2-Ethylhexyl palmitate 8 10. Sorbitan sesquioleate 1 11. Preservative 0.3 12. Perfume 0.1 13. Polyvinyl alcohol (25cs) 0.01 Components 1 to 7 are mixed with a Henshur mixer, and to this mixture A mixture of ingredients 9 to 12 that was heated, dissolved and mixed was added and mixed, and then pulverized with a 5 pulsarizer (Hosokawa Micron), which was made of aluminum with 8 holes of 4 mmφ at the bottom of 53 mm.
After molding at a pressure of 100 kg / cm ^{2 in} a φ medium dish, a double amount of 13 dissolved in 20 parts of 70% ethanol was soaked from the molding surface and impregnated. Further, press molding was performed while suctioning at a pressure of 100 kg / cm ² . At this time, the remaining amount of the alcohol solution was about 10 parts. This was dried at 70 ° C. for 1 hour to obtain a powder foundation X according to the present invention.

A comparative powder foundation S was prepared by the same method except that the polyvinyl alcohol solution was soaked in place of the component 13 polyvinyl alcohol and the polyvinyl alcohol solution was impregnated. The evaluation results are shown in the following table.

Example 2 Blusher Blusher X, Y, Z according to the present invention from the following components
Was prepared.

Ingredients (1) to (5) were mixed with a Henschel mixer, components (6) to (9) were heated and dissolved and mixed to this mixture, and the mixture was further sprayed and then mixed with a 5 pulsarizer (Hosokawa Micron). Grind and 60 kg / c in a 40 x 60 mm medium dish
Molded at a pressure of m ² . From the surface of this molded component (1
A solution obtained by dissolving 0) and (11) in 20 parts of 90% methanol was soaked and dried at 50 ° C. for 2 hours to obtain the blushers X, Y and Z of the present invention.

The amount of the component (10) is 0%, 0.0005%, 0.05%, (11)
Of the comparison blushers S, T, U by the same method as described above except that the amount is adjusted to 0% and sericite is adjusted to 100%.
Was prepared. The evaluation results are shown in the following table.

Example 3 Solid white powder X The solid white powder X according to the present invention was prepared from the following components.

(Wt%) 1. Talc 2. Synthetic Fluor phlogopite 50 3. Titanium dioxide 0.5 4. Red iron oxide 0.1 5. Yellow iron oxide 0.15 6. Black iron oxide 0.01 7. Dimethylpolysiloxane (2000cs) 4 8. Polyoxy Ethylene dimethyl polysiloxane 1 9. Preservative 0.1 10. Perfume 0.1 11. Vinyl acetate 0.005 12. Polyvinyl alcohol (25cs) 0.005 Mix 1 to 6 components with a Henschel mixer, and add 7 to 10 to this mixture. Add the heat-dissolved mixture, mix and mix, and then pulverize with a 5 pulsarizer (Hosokawa Micron), and add 150kg / cm ² to an aluminum 60mm medium plate with 30 holes in 2mm on the bottom. After generating with pressure,
What melt | dissolved the component 12 in 20 parts of water emulsions of the component 11 was soaked from the molding surface, and dried at 50 ° C. for 3 hours to obtain a solid white powder X according to the present invention.

A comparative solid white powder S was prepared by the same method except that the steps of impregnating a polyvinyl alcohol-dissolved vinyl acetate emulsion were carried out with the formulation in which the same amounts of talc were replaced in place of the components 11 and 12. The evaluation results are shown in the following table.

[Effects of the Invention] According to the present invention, a powdery solid cosmetic having a transparent feeling, no powderiness, clean cosmetic skin, no caking, and excellent impact resistance can be obtained.

Claims (2)

[Claims] 1. A powdered cosmetic composition is press-molded into an inner plate, and then water- or water-containing alcohol or a solution of a water-soluble polymer and / or a water-dispersible polymer is impregnated into the press-molded powdered cosmetic composition. A method for producing a powdery solid cosmetic, which comprises pressing or pressing while suctioning. 2. The method for producing a powdery solid cosmetic composition according to claim 1, wherein an inner plate having a hole on the bottom surface is used.