JP5563184B2 - Solid powder cosmetic and method for producing solid powder cosmetic - Google Patents

Description

  The present invention relates to a solid powder cosmetic and a method for producing the same, characterized by high blending and uniform molding of an organic laminated powder having excellent luster, and more specifically, smooth extension during use. The present invention relates to a solid powder cosmetic that is excellent in spreading, finishing, and appearance gloss of cosmetics, and that is excellent in moldability and impact resistance.

  Solid powder cosmetics are cosmetics that are generally compression-molded into a dish-like container and then mounted on a compact container. Because of its good portability, it is widely used for makeup cosmetics such as foundations and eye shadows. It is a dosage form. And since solid powder cosmetics are carried in handbags etc., if the impact resistance of the molded product is poor, the molded product will crack or collapse, so the impact resistance is not at a guaranteed level. Don't be. In addition, solid powder cosmetics are used by scraping the surface of the molded product with a prop and applying it to the skin, so the feeling of use on the prop, the feeling of application on the skin, etc. is an important quality of the product. Yes.

Such a solid powder cosmetic is usually dispersed by adding an oil agent to a powder system such as a color pigment, an extender pigment, or a bright pigment, and then compression-molding the powder into a dish-like container made of metal such as aluminum or resin. Is. As a method of filling and molding solid powder cosmetics, a method (so-called press molding method) in which a cosmetic base material containing powder as a main component is filled in a dish-like container and this is compression-molded has been generally used. .
In this press molding method, the presence of glittering powder or organic laminated powder that is a cosmetic base material may cause molding defects such as reduced impact resistance, peeling, and chipping. In addition, it was necessary to examine compounding components and compression molding conditions. In order to solve such problems of the press molding method and increase the impact resistance of the solid powder cosmetic in the press molding method, a method using an organic extender pigment and powdered wax of a specific size (for example, Patent Document 1) Have been developed and applied.
In addition, as a solid powder cosmetic filling method different from the press molding method, a cosmetic base material mainly composed of powder is mixed with a solvent to form a slurry, and then a container such as a metal dish or a resin dish. A method of forming the flaky silica and the plate-like powder has been studied (see, for example, Patent Document 2).
On the other hand, the filling method has also been improved, and a solid molding composition molded using a filling molding method (see, for example, Patent Document 3) or a solvent that improves the solvent removal efficiency when filling multicolor cosmetics is used later. A filling molding technique (for example, see Patent Document 4) in which a liquid component is added has been developed.

Japanese Patent No. 2811349 JP 2005-306847 A Japanese Patent Laid-Open No. 6-179607 JP 2003-238346 A

However, in the method described in Patent Document 1, particularly when a lot of glittering powder and organic laminated powder that are difficult to be compression-molded as a powder are blended, the impact resistance due to molding failure may be inferior. In order to obtain high impact resistance, it is necessary to increase the amount of powdery wax or reduce the glitter powder, and as a result, the smooth elongation spread, the finish and the appearance gloss of cosmetics may be significantly impaired. It was.
In addition, when a lot of glittering powder such as titanium mica is blended using the method described in the above-mentioned Patent Document 2, although it is excellent in smooth elongation and spread during use, finish and appearance gloss of cosmetics, By removing the solvent, there is a problem that the volume of the solid powder filled in the dish-like container shrinks, and the solid powder falls out of the dish-like container, and the impact resistance such as cracks is inferior. Moreover, since the volatile solvent and the solvent are removed by drying, it is difficult to blend a large amount of organic laminated powder having poor solvent resistance and heat resistance.
Furthermore, in the methods described in Patent Documents 3 and 4, when the volume shrinkage of the solid powder filled in the dish-like container is reduced as much as possible to improve the impact resistance, a volatile solvent that has been generally used conventionally. When light liquid isoparaffin is used, a plate-like powder having a high aspect ratio, such as titanium mica, adheres to the absorber portion during filling molding, causing peeling and inferior surface gloss.

  For this reason, in solid powder cosmetics that blend many organic laminated powders with excellent solvent and heat resistance, but with a lot of organic laminated powders, in combination with filling molding technology that maintains the gloss of the appearance while efficiently absorbing the solvent Therefore, there has been a demand for development of a technique for smooth and spreading during use, excellent glossiness of the finished product, and improving impact resistance.

  In view of such a situation, the present inventors have intensively studied, and as a result, mixed a cosmetic base material containing an organic laminated powder inferior in solvent resistance and heat resistance and an oil and a solvent, and filled the mixture into a container. By removing the solvent in a liquid state and molding it, it spreads smoothly when used, for example, when applied with a chip, and further, it has excellent finish, cosmetic appearance gloss, impact resistance, and moldability. The present inventors have found that a solid powder cosmetic can be obtained and completed the present invention.

  That is, the present invention is a solid powder cosmetic obtained by mixing a cosmetic base material containing an organic laminated powder and an oil and a solvent, filling the mixture in a container, and removing the solvent in a liquid state. The content of the organic laminated powder in the cosmetic base material is 30 to 50% by mass (hereinafter simply indicated by “%”), and the content of the oil agent is 20 to 40%. A solid powder cosmetic is provided. Further, a cosmetic base material containing 30 to 50% organic laminated powder and 20 to 40% oil is mixed with a solvent, the mixture is filled in a container, and the solvent is removed in a liquid state to be molded. The present invention provides a method for producing a solid powder cosmetic.

  The solid powder cosmetic of the present invention is capable of highly blending and uniformly forming an organic laminated powder inferior in solvent resistance and heat resistance, and when used, it spreads smoothly, has excellent finish and external tourism brightness of the cosmetic, and impact resistance It is a solid powder cosmetic excellent in moldability.

Hereinafter, the present invention will be described in detail.
The solid powder cosmetic of the present invention is obtained by mixing a cosmetic base material with a solvent to form a slurry, filling the slurry in a container, and then removing the solvent using an absorbent and molding. is there.
The organic laminated powder used in the present invention is a powder having a pearly feeling and an interference color. For example, polyethylene terephthalate / polymethyl methacrylate laminated film powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene / polyethylene terephthalate laminated powder, polyethylene Examples include terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / aluminum / epoxy laminated powder / gunjo, polyethylene terephthalate / aluminum / epoxy laminated powder / bengala, polyethylene terephthalate / aluminum / epoxy laminated powder / barium sulfate, and the like. Examples of such organic laminated powders include aurora flakes manufactured by Kakuhachi-Scale Co., Ltd., and iridic glitters manufactured by Diachemco. These 1 type, or 2 or more types can be used.

  The blending amount of the organic laminated powder in the cosmetic base material of the solid powder cosmetic of the present invention is 30 to 50%, preferably 40 to 50%. When the blending amount is less than 30%, glossiness of the finish and appearance cannot be obtained, and when it exceeds 50%, the moldability and impact resistance are poor.

  These organic laminated powders preferably have an average particle size of 20 μm to 2 mm, and can be used alone or in combination of two or more as required. The particle size was measured using a Coulter counter method. In addition, the surface of the organic laminated powder is subjected to conventionally known methods such as oil agent treatment, silicone compound treatment, fluorine compound treatment, metal soap treatment, surfactant treatment, amino acid compound treatment, water-soluble polymer treatment, and the like. May be used.

  The oil agent in the cosmetic base material of the solid powder cosmetic of the present invention is not particularly limited as long as it is usually an oil agent used in cosmetics. Specifically, paraffin wax, ceresin wax, ozokerite, microcrystalline wax, montan wax, Fischer-Tropsch wax, polyethylene wax, liquid paraffin, squalane, petrolatum, polyisobutene, polybutene and other hydrocarbons, carnauba wax, beeswax, lanolin wax, Natural waxes such as candelilla, glyceryl tribehenate, pentaerythritol ester of rosin acid, jojoba oil, cetyl isooctanoate, isopropyl myristate, glyceryl trioctanoate, diglyceryl triisostearate, dipentaerythritol fatty acid ester, macadamian nut Esters such as oil fatty acid phytosteryl, fatty acids such as stearic acid and behenic acid, cetanol, stearyl alcohol, beheny Higher alcohols such as alcohol, oils and fats such as olive oil, castor oil, mink oil, and mole, lanolin derivatives such as lanolin fatty acid isopropyl and lanolin alcohol, N-lauroyl-L-glutamate di (cholesteryl / behenyl / octyldodecyl), etc. Amino acid derivatives, dimethylpolysiloxane, methylphenylpolysiloxane, alkyl-modified organopolysiloxane, alkoxy-modified organopolysiloxane, silicone compounds such as higher fatty acid-modified organopolysiloxane, fluorine-modified organopolysiloxane, perfluoropolyether, Fluorine oils such as fluorodecane and perfluorooctane can be used, and one or more of these can be used.

The blending amount of the oil agent in the cosmetic base material of the solid powder cosmetic of the present invention is 20 to 40%, preferably 20 to 30%. When the blending amount of the oil is less than 20%, the impact resistance is inferior, and when it exceeds 40%, the smooth spread during use is inferior. When 2 to 5% of solid hydrocarbon or natural wax is blended as the composition of the oil agent, impact resistance can be further improved.

  As a filling method used in the present invention, for example, a cosmetic base material containing an organic laminated powder and an oil agent and a solvent are mixed to form a slurry, and then filled into a dish-like container, and an absorbent body such as a porous press head The solvent is recovered while compressing with. At that time, it is preferable to press using a pad or the like in order to smooth the surface. Here, the oil agent may be the same substance as the solvent.

The solvent used in the present invention is not particularly limited as long as it is a liquid substance that can be made into a slurry when filling a cosmetic base material containing an organic laminated powder and an oil, but is preferably a non-volatile compound. Examples thereof include hydrogen oil, ester oil, and silicone oil. Specifically, liquid paraffin, isononyl isononanoate, and one or more of them can be used.
Further, when the solvent is efficiently recovered by the filling method, silicone oil is preferable, and linear dimethylpolysiloxane having a viscosity at 25 ° C. of 1.5 to 50 mm 2 / s is preferable, for example, Shin-Etsu Chemical Co., Ltd. Examples thereof include KF-96A-6cs, KF-96A-10cs, and KF-96A-50cs.

  In the present invention, the mixing ratio of the cosmetic base material and the solvent is arbitrarily adjusted so that the fluidity of the mixture can be filled in the container, but the cosmetic base material: solvent = 1: 0. 4 to 1: 1.2 is preferred. Within this range, moldability and solvent removal are good.

  In addition to the organic laminated powder, other powders can be blended in the solid powder cosmetic of the present invention. Powders that can be blended in the present invention are used for purposes such as colorants, masking agents (make-up effects), feel modifiers, excipients, UV screening agents, etc., and are powders used in ordinary cosmetics. And is not particularly limited by the shape of plates, spheres, needles, etc., the particle size of fumes, fine particles, pigment grades, etc., the particle structure of porous, nonporous, etc., and inorganic powders Organic powders, pigment powders, composite powders and the like. Specifically, titanium oxide, black titanium oxide, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, silicic anhydride, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide , Chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, sericite, talc, kaolin, silicon carbide, barium sulfate, boron nitride and other inorganic powders, nylon, Polymethyl methacrylate, polyalkyl acrylate, organopolysiloxane elastomer, polymethyl sesquioxane, cross-linked silicone / network silicone block copolymer, polystyrene, acrylonitrile-methacrylic acid copolymer, vinylidene chloride-methacrylic acid Polymer, polyethylene, urethane, wool powder, silk powder, crystalline cellulose powder, organic powders such as N-acyl lysine powder, organic tar pigments, pigment powders such as organic pigment lake pigments, fine particle titanium oxide coating Examples include mica titanium, fine particle zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium oxide-containing silicic acid anhydride, zinc oxide-containing silicic acid complex powder, and the like, and one or more of these may be used. it can. Especially blended with glittering powders such as bismuth oxychloride with interference color, titanium oxide coated mica, iron oxide coated mica, iron oxide coated mica titanium, organic pigment coated mica titanium, aluminum powder, etc. Then, it is more excellent in the finish and the outer tourism luster of cosmetics. These powders may be used after being surface-treated with a generally known treating agent such as a fluorine compound, a silicone compound, a surfactant, and other oil agents.

  In addition to the above-mentioned components, the solid powder cosmetic of the present invention includes oil-soluble coatings such as surfactants, oil gelling agents, water-soluble polymers, and trimethylsiloxysilicic acid as components used in ordinary cosmetics. Forming agents, aqueous components, paraoxybenzoic acid derivatives, preservatives such as phenoxyethanol, vitamins, cosmetic ingredients, fragrances, and the like can be appropriately blended within a range not impairing the effects of the present invention.

  The method for producing the cosmetic base material of the present invention is not particularly limited, but is a method of dispersing and mixing organic laminated powder, oil agent and other powders, and adding and uniformly dispersing a mixture of other components as necessary. Etc.

  The solid powder cosmetic of the present invention can be applied to makeup cosmetics such as eye shadows and blushers. Moreover, the surface form of the solid powder cosmetic of the present invention can be formed into various three-dimensional shapes such as a dome shape, a cone shape, a pyramid shape, and a diamond cut shape in addition to a cake shape.

  Hereinafter, the present invention will be described in more detail with reference to examples. Note that these do not limit the present invention.

Examples 1-7 and Comparative Examples 1-4: Eye shadow (cake-like)
An eye shadow having the composition shown in Table 1 was prepared by the following production method, and “smooth stretch spread”, “finish glossiness”, “cosmetic appearance glossiness”, “impact resistance”, “moldability” ”Was evaluated by the following evaluation method and criteria, and the results are shown in Table 1.

The remaining amount of the mica of component 8 is an amount that is 100 parts in the cosmetic base material (components 1 to 15).
Note 1: Aurora flake blue star (Kakuhachi Fish Scale)
Note 2: Iridescent glitter (manufactured by Diachemco)
Note 3: Metashine 1080RC-S (Nippon Sheet Glass Co., Ltd.)
Note 4: KF-96A-6cs (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Production method)
A. Ingredients 1-9 are uniformly dispersed with a Henschel mixer (Mitsui Miike).
B. Ingredients 10-14 are heated to 80 ° C. and dispersed uniformly.
C. While stirring A with a Henschel mixer, B and component 15 were added and dispersed uniformly to obtain a cosmetic base material.
D. The solvent of component 16 is added to 100 parts of the cosmetic base material, mixed and slurried.
E. D was filled in a metal pan, and KF-96A-6cs as a solvent was removed while being compressed using paper as an absorber to obtain an eye shadow.

(Evaluation Method 1) “Smooth Elongation Spread” “Finish Gloss” “Glossy Appearance Gloss”
20 cosmetic panel evaluation specialists used the eye shadows of the examples and comparative examples described above, and each of them followed the following evaluation criteria for “smooth stretch spread”, “finish glossiness”, and “cosmetic appearance glossiness” Seven grades were evaluated, a score was assigned to each sample, and the average score of all panels was determined according to the following criteria.
(Evaluation criteria)
(Evaluation): (Contents)
6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad
1: Bad.
0: Very bad.
(Criteria)
(Average score): (Judgment)
5.0 or more: ◎ (very good)
3.5 or more and less than 5.0: ○ (good)
1.5 or more and less than 3.5: △ (somewhat poor)
Less than 1.5: x (defect)

(Evaluation Method 2): “Impact resistance” “Formability”
Prepare 6 eye shadows for each of the examples and comparative examples. 1 is a standard and 5 are free-falling in an upright direction on an acrylic plate from a height of 50 cm with a metal pan filled. , Observe the surface condition after dropping compared to the standard surface condition, give a score for each eye shadow according to the following evaluation criteria, and calculate the average score of the scores of n = 5. Judgment was made according to judgment criteria.
(Evaluation criteria)
(Content): (Grade)
No change: 4
Slightly cracked but no problem with usability: 3
Cracks and gaps: 2
There are large cracks and gaps: 1
(Criteria)
(Average score of n = 5): (Judgment)
3.5 or more: ◎
3.0 or more to less than 3.5: ○
2.0 or more and less than 3.0: △
Less than 2.0: ×

As is apparent from the results in Table 1, the eye shadows of Examples 1 to 7 have “smooth stretch spread”, “finish glossiness”, “cosmetic appearance glossiness”, “impact resistance”, “ It was a solid powder cosmetic excellent in all items of “moldability”.
On the other hand, Comparative Example 1 in which the amount of the organic laminated powder is small and less than 30% is inferior in the glossiness of the finish and the appearance gloss of the cosmetic, and Comparative Example 2 in which the organic laminated powder is more than 50%. Although the finished gloss was excellent, it was inferior particularly in impact resistance and moldability. In addition, Comparative Example 3 having a small amount of oil agent and less than 20% is obtained in smooth elongation spread during use, but in terms of finished gloss, cosmetic appearance gloss, impact resistance, and moldability. The comparative example 4 which is inferior and 40% or more with a large amount of the oil agent was inferior to the smooth stretch spread during use, and an excellent appearance gloss was not obtained.

Example 8 Face color (cake shape: surface dome shape)
(Ingredient) (%)
1. polyethylene terephthalate·
Polymethylmethacrylate laminated powder Note 5 20
2. polyethylene terephthalate·
Aluminum / epoxy laminated powder Note 6 10
3. Silicone-treated talc Note 7 Remaining amount 4. Titanium oxide coated mica 5
5. Titanium oxide coated glass powder Note 8 5
6). Nylon powder 5
7). Red 226 0.5
8). Ultramarine 0.2
9. Methyl paraoxybenzoate 0.1
10. Squalane 10
11. Glyceryl trioctanoate 10
12 Paraffin wax 3
13. Perfume appropriate amount Note 5: Aurora Flakes Red (manufactured by Kakuhachi Fish Scale)
Note 6: Epo Crystal Purple (Mita Giken)
Note 7: (dimethicone / methicone) copolymer 3% treatment Note 8: Metashine 1080RC-R (manufactured by Nippon Sheet Glass Co., Ltd.)
(Production method)
A. Ingredients 1-8 are uniformly dispersed with a Henschel mixer (Mitsui Miike).
B. Ingredients 9-12 are heated to 70 ° C. and uniformly dispersed.
C. While stirring A with a Henschel mixer, B and component 13 are added and dispersed uniformly to obtain a cosmetic base material.
D. To 100 parts of the cosmetic base material, 80 parts of KF-96A-10cs, which is a solvent, is added and mixed to form a slurry.
E. D was filled in a metal pan, and the solvent was removed using a nonwoven fabric as an absorbent while being compressed to obtain a face color.
The face color of Example 8 is a solid powder excellent in all items of “smooth elongation and spread”, “finish glossiness”, “cosmetic appearance glossiness”, “impact resistance”, and “moldability”. It was a cosmetic.

Claims (4)

  Polyethylene terephthalate / polymethyl methacrylate laminated film powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene / polyethylene terephthalate laminated powder, polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / aluminum / epoxy laminated powder / gunjou, polyethylene terephthalate / aluminum / Organic laminated powder and hydrocarbons, natural waxes, esters, fatty acids, higher alcohols, fats and oils, lanolin derivatives selected from the group consisting of epoxy laminated powder, bengara and polyethylene terephthalate, aluminum, epoxy laminated powder, and barium sulfate A cosmetic base material containing an oil selected from the group consisting of catechol, amino acid derivatives and fluorine-based oils; It is a solid powder cosmetic obtained by mixing with oil, filling the mixture into a container, and removing the silicone oil in a liquid state, and the content of the organic laminated powder in the cosmetic base material is 30 to 50 Solid powder cosmetics characterized in that the content of the oil is 20 to 40% by mass.   The method for removing the silicone oil in a liquid state is a method in which an absorbent body is pressed against an opening of a container filled with the mixture, and the silicone oil is absorbed by the absorbent body. Solid powder cosmetic.   Polyethylene terephthalate / polymethyl methacrylate laminated film powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene / polyethylene terephthalate laminated powder, polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / aluminum / epoxy laminated powder / gunjou, polyethylene terephthalate / aluminum / 30-50% by weight of organic laminated powder selected from the group consisting of epoxy laminated powder, bengara and polyethylene terephthalate, aluminum, epoxy laminated powder, barium sulfate, hydrocarbons, natural waxes, esters, fatty acids, higher alcohols 20 to 40 masses of oil selected from the group consisting of oils and fats, lanolin derivatives, amino acid derivatives and fluorine-based oils A cosmetic substrate containing, by mixing the silicone oil, and fill the mixture into a container, a manufacturing method of a solid powder cosmetic, which comprises molding the silicone oil is removed in liquid state. Method of removing the silicone oil in a liquid state, pressing the absorber to the opening of the container filled with the mixture, the silicone oil according to claim 3, characterized in that the method of absorbing the said absorber Manufacturing method of solid powder cosmetics.