JP2017178903A - Solid powder cosmetics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide solid powder cosmetics which cause no crack or shrinkage after removing solvents and are excellent in impact resistance, while spread with smooth touch and are excellent in sensory characteristics such as close contact feeling, in a wet molding method using a solvent having a high water content.SOLUTION: Provided is a solid powder cosmetic in which a volatile solvent comprises the following components (A) and (B) as well as a powder composition comprises the following components (C)-(F): component (A): 70% or more to 100% or less of water; component (B): 0% or more to 30% or less of one or more selected from volatile alcohols; component (C): acrylic water-soluble polymer; component (D): difatty acyl glutamic-acid lysine salt; component (E): powder; and component (F): oil solution.EFFECT: We can provide solid powder cosmetics which cause no crack or shrinkage after removing the solvent and are excellent in impact resistance, while spread with smooth touch and are excellent in sensory characteristics such as close contact feeling, in a wet molding method using a solvent having a high water content.SELECTED DRAWING: None

Description

The present invention relates to a solid powder cosmetic produced by a wet molding method using a solvent having a high water content. More specifically, blending acrylic water-soluble polymer and di-fatty acid acylglutamic acid lysine salt does not cause cracking or shrinkage after solvent removal, has excellent impact resistance, and excellent sensory characteristics such as feel and finish. A solid powder cosmetic is obtained.

Solid powder cosmetics are supported by many customers because of their advantages such as portability and simplicity of makeup methods. Solid powder cosmetics can be molded by mixing powder and oil, filling the container, and then press-molding, and adding a volatile solvent to the cosmetic base consisting of powder and oil. There is a wet manufacturing method in which a slurry is formed, this is filled in a container, and the volatile solvent is removed to form. However, solid powder cosmetics produced by a dry process are often dissatisfied with being powdery and worried about drying, and being less matte and transparent. On the other hand, in the wet manufacturing method, once the slurry is made into a slurry, the oil component efficiently adheres to each of the powder components, so there is no powderiness and a smooth and smooth feeling of use. Moreover, it is easy to obtain transparency and gloss.

As the solvent used in the wet molding method, volatile hydrocarbons and low-boiling alcohols having excellent base material dispersion ability have been used conventionally. However, all of these volatile solvents are dangerous materials, and it is essential to take an explosion-proof measure and a safety measure by inhaling workers, and it is also necessary to recover the solvent due to environmental problems. From such a background, there is a demand for a wet molding method using water as a volatile solvent. However, when a slurry is prepared using a solvent having a high water content, it is difficult to uniformly disperse the mixture of the powder and oil agent and the solvent, and the solvent is removed compared to other volatile solvents such as alcohol and volatile oil. Occasionally, the surface is easily cracked, and a gap is easily formed between the container and the container due to shrinkage. Therefore, there was a problem that it was inferior in impact resistance. Therefore, in order to solve this problem, a method of blending a cellulose-based water-soluble polymer and a specific activator (Patent Document 1), a method of blending crystalline cellulose and a specific activator (Patent Document 2), , A method of blending a hydrophobized powder with a polyhydric alcohol, a hydrated oil, a specific activator (Patent Document 3), a hydrophobized powder with a polyhydric alcohol, a specific silicone gel composition, and a specific activator. Method of blending (Patent Document 4), Method of blending hydrophobized powder and polyhydric alcohol, specific flexible organic resin powder, specific activator (Patent Document 5), bond-forming powder and specific composite A method of blending powder and hydrocarbon oil (Patent Document 6) and a method of blending fumed silicic acid anhydride with starch and water-swellable clay mineral (Patent Document 7) are known. However, these technologies are not fully satisfactory in terms of both impact resistance and usability, and cracking and shrinkage after solvent removal cannot be improved, and makeup sustainability is impaired by the incorporation of an active agent. Or a soft and fluffy feel unique to a wet process using a solvent having a high water content, or a smooth spread at the time of coating.

JP 2014-101293 A JP 2014-65691 A JP 2011-74023 A JP 2010-37207 A JP 2010-47528 A JP 2005-272439 A JP 2006-282583 A

In the wet molding method using a solvent having a high water content, the present invention is free from cracks and shrinkage after removal of the solvent, has excellent impact resistance, and spreads with a smooth touch, feeling of adhesion, makeup sustainability, etc. It is an object of the present invention to provide a solid powder cosmetic having excellent sensory characteristics.

In order to achieve the above object, as a result of intensive studies, the present inventors have found that the volatile solvent contains the following components (A) and (B), and the powder composition contains the following components (C) to (F). It has been found that there is no cracking or shrinkage after removing the solvent, it is excellent in impact resistance, spreads with a smooth touch, solid powder cosmetics excellent in sensory characteristics such as adhesion feeling, makeup durability, etc. The present invention has been completed.
Component (A): 70% or more and 100% or less of water Component (B): One or two or more selected from volatile alcohols 0% or more and 30% or less Component (C): Acrylic water-soluble polymer component (D): Difatty acid acyl glutamic acid lysine salt component (E): Powder component (F): Oil agent

According to the present invention, in a wet molding method using a solvent having a high water content, there is no cracking or shrinkage after removal of the solvent, it has excellent impact resistance, and it spreads and spreads with a smooth touch. A solid powder cosmetic excellent in properties can be provided.

  Hereinafter, the present invention will be described in more detail.

  The acrylic water-soluble polymer of component (C) used in the present invention has the property of swelling and thickening when mixed with water, and also in the present invention utilizing its thickening function and emulsification assisting function. Powder, oil, and solvent were blended for the purpose of homogenizing the mixture. For example, selected from (hydroxyethyl acrylate / acryloyl dimethyl taurine Na) copolymer, (Na acrylate / acryloyl dimethyl taurine Na) copolymer, (acrylamide / ammonium acrylate) copolymer, polyacrylate-13, and ammonium polyacrylate. The Particularly preferred is a (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer. Any acrylic polymer compound may be a commercially available product. As the (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, SEPINOV EMT 10 manufactured by SEPPIC, SIMULGEL NS manufactured by SEPPIC, or the like can be used.

  Although the compounding quantity of the component (C) used for this invention is not specifically limited, 0.01%-1.0% are preferable in a powder composition, More desirably, 0.1%-0.5% are preferable. Within this ratio, when combined with component (D), the effect of improving cracking and shrinkage after solvent removal is very good. In addition, within this ratio, the powdered solid cosmetic has a soft and smooth touch feeling, and can be removed to the puff and spread at the time of application.

  In the present invention, the component (D) difatty acid acylglutamic acid lysine salt used in the present invention functions as a dispersion aid for improving the dispersibility of the powder. When combined with component (C), the effect of improving cracking and shrinkage after solvent removal is very good. Some difatty acid acylglutamic acid lysine salts are already commercially available, and such commercially available products can also be used in the present invention. Among such commercially available products, specifically, Pericea L-30 manufactured by Asahi Kasei Chemicals Co., Ltd. is exemplified as dilauroyl glutamic acid lysine Na.

  Although the compounding quantity of the component (D) used for this invention is not specifically limited, 0.01%-2.0% are preferable. More desirably, it is preferably 0.1% to 1.0%. In this range, the mixture of the powder and the oil and the water of the solvent can be quickly and uniformly dispersed, and the slurry preparation process can be shortened. Also, in this range, the stickiness of the solid powder cosmetic is improved when combined with the component (C), and the spread of spread at the time of application is very good. Moreover, the makeup persistence after application is good.

  The powder component of the component (E) used for this invention will not be specifically limited if it is the powder normally used for cosmetics. For example, brightness of inorganic powders such as talc, sericite, mica, synthetic mica, kaolin, silica, barium sulfate, alumina, boron nitride, titanium oxide, iron oxide, zinc oxide, titanium oxide coated mica, titanium oxide coated glass flakes, etc. Organic pigments such as reactive color pigments, nylon, polyurethane, polyethylene, polystyrene, polymethyl methacrylate, and silicone powder. Moreover, what hydrophobized these, such as a silicone process, a fatty-acid process, and a fluorine process, can also be used. Although the compounding quantity of the said powder is not specifically limited, 70-98 mass% is preferable in a powder composition.

The oil agent of (F) used for this invention will not be specifically limited if it is an oil agent normally used for cosmetics. For example, hydrocarbons, fats and oils, waxes, hardened oils, ester oils, regardless of origin such as animal oils, vegetable oils, synthetic oils and properties such as solid oils, semi-solid oils, liquid oils, volatile oils And oil agents such as higher alcohols, silicone oils, fluorine-based oils, and lanolin derivatives. Although the compounding quantity of the said oil agent is not specifically limited, 1-20 mass% is preferable in a powder composition.

In the solid powder cosmetic of the present invention, other components generally used in cosmetics may be blended in addition to the above components within a range not impairing the effects of the present invention.

The solid powder cosmetic of the present invention is prepared by mixing a solvent containing the components (A) and (B) and a powder composition containing the components (C) to (F) to form a slurry, which is filled in a container. Subsequently, it can obtain by removing a solvent by a normal method.

Utilizing component (A) as the solvent used in the present invention contributes to obtaining a good feeling of use by the solid powder cosmetic produced by the wet filling method. The concentration of the component (A) in the solvent of the solid powder cosmetic is 70% or more and 100% or less. The higher the concentration of the component (A), the better the soft feel of the product, and more preferable. Therefore, the solvent may be the component (A) alone.

Even when the component (B) is not blended in the solvent, the effect of the invention can be sufficiently obtained, but when the component (B) is blended, the impact resistance of the solid powder cosmetic is further improved. As the component (B), ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol and the like are preferable. The concentration of the component (B) in the solvent is 0% or more and 30% or less. If it is this range, the favorable usability | use_condition which is the characteristics in the case of containing many water in a solvent is maintained.

The composition of the solvent is preferably component (A) alone or an aqueous alcohol solution in which component (B) is dissolved in component (A). In general, when a large amount of the component (A) is contained as a solvent for the wet filling method, the surface of the produced solid powder cosmetic tends to be cracked or shrunk, which tends to reduce moldability. It was an issue. However, the solid powder cosmetic of the present invention maintains good moldability even when the solvent is water alone.

In this invention, although the quantity of a solvent is not specifically limited, 20-200 mass% is preferable with respect to a powder composition, More preferably, it is 30-150 mass% with respect to a powder composition. When the amount of the solvent is 20% by mass or more, the powder and water are more uniformly wetted, and the moldability and impact resistance are good. When the amount of the solvent is 200 parts by mass or less, the drying efficiency is good and the time required for production can be shortened.

Examples of the solid powder cosmetic of the present invention include foundation, pressed powder, teak color, eye shadow, eyebrow, and the like.

The following examples further illustrate the present invention. A compounding quantity is the mass%. In addition, these do not limit this invention at all.
Examples 1 to 5 and Comparative Examples 1 to 6: Powder Foundation A powder foundation was prepared according to the formulation shown in Table 1 below and the following manufacturing method, and a. Appearance, b. Impact resistance, c. Feeling of use, d. The properties were evaluated by the following evaluation methods and criteria, and the results are shown in Table 1.

(Manufacturing method)
Powder, oil agent, antioxidant, etc. are uniformly mixed to obtain a powder composition. To this, purified water as a solvent is added in an amount of 80% by mass with respect to the powder composition and mixed uniformly to form a slurry. This is filled into a container and compression-molded while vacuuming. Thereafter, the molded product was dried at 50 ° C. for 24 hours to obtain a powder foundation.

(Evaluation method: a. Appearance)
For each of the five powder foundations of the above examples and comparative examples, the appearance at the time of completion was visually observed, and the surface was evaluated for cracks and outer peripheral gaps, and determined according to the following criteria.
<Criteria>
○: There are no cracks or gaps on the periphery of all five sheets ×: Cracks or gaps on the periphery are present on one or more sheets

(Evaluation method: b. Impact resistance)
For each of the five powder foundations of the above examples and comparative examples, it was repeatedly dropped in an erect direction on a vinyl chloride plate from a height of 50 cm, and the average number of drops until cracking occurred was averaged by five sheets, and the following judgment was made Judgment according to criteria.
<Criteria>
◎: 4 times or more ○: 2.5 or more and less than 4 times Δ: 1.5 or more and less than 2.5 times ×: less than 1.5 times

(Evaluation method: c. Usability)
Five cosmetic panel specialists use the powder foundations of the above examples and comparative examples. Each of them evaluates the feeling of use according to the following criteria in five levels, and gives a score for each cosmetic. Was determined according to the following four criteria.
<Evaluation criteria>
Evaluation results: Score very good: 5 points good: 4 points normal: 3 points slightly bad: 2 points bad: 1 point <Criteria>
Average score: Judgment 4.5 or higher: ◎
3.5 or more and less than 4.5: ○
1.5 or more and less than 3.5: △
Less than 1.5: ×

(Evaluation method: d. Makeup persistence)
Five cosmetic panel specialists used the powder foundations of the above examples and comparative examples. Each of them evaluated their makeup sustainability in five levels according to the following criteria, and given a score for each cosmetic. The average score was determined according to the following four criteria. In addition, about the makeup persistence, the state immediately after cosmetics application and the state of 5 hours after application (daily life) were compared and evaluated.
<Evaluation criteria>
Evaluation results: Score very good: 5 points good: 4 points normal: 3 points slightly bad: 2 points bad: 1 point <Criteria>
Average score: Judgment 4.5 or higher: ◎
3.5 or more and less than 4.5: ○
1.5 or more and less than 3.5: △
Less than 1.5: ×

Examples 1 to 5 were good in appearance, impact resistance, and usability. On the other hand, Comparative Example 1 in which the acrylic water-soluble polymer and the difatty acid acylglutamic acid lysine salt were not blended was poor in appearance, impact resistance, feeling of use, and makeup sustainability. Moreover, the comparative example 2 and the comparative example 4 which did not mix | blend acrylic water-soluble polymer had a crack in the external appearance, and the impact resistance was also unsatisfactory. In Comparative Example 3, the appearance and impact resistance were good, but the surface of the molded product was hard, and an appropriate amount could not be taken into the puff, resulting in poor usability. Comparative Examples 5 to 7 in which the difatty acid acylglutamic acid lysine salt was not blended had poor makeup persistence over time. From these results, it was found that the powder foundations of Examples 1 to 5 of the present invention were superior in all of appearance, impact resistance, feeling of use, and makeup sustainability as compared with Comparative Examples 1 to 7. . In all the experiments, 100% water was used as a solvent, but similar results were obtained when a 30% ethanol aqueous solution was used as a solvent.

Examples 6 to 11: Powder foundation A powder foundation was prepared in the same manner as in Examples 1 to 5 according to the formulation shown in Table 2 below, and evaluated according to the same evaluation method and criteria as in Examples 1 to 5. Results Are also shown in Table 2.

Examples 7 to 10 were very good in appearance, impact resistance, feeling of use, and makeup sustainability even when compared with Examples 6 and 11. From this result, it was found that the blending amount of the acrylic water-soluble polymer is preferably 0.01 to 1% by mass, and more preferably 0.1 to 0.5% by mass.

Examples 12 to 17: Powder foundation A powder foundation was prepared by the same method as in Examples 1 to 5 according to the formulation shown in Table 3 below, and evaluated by the same evaluation method and criteria as in Examples 1 to 5, and the results. Are also shown in Table 3.

Examples 13 to 16 were much better in appearance, impact resistance, feeling of use, and makeup sustainability than Examples 12 and 17. From this result, it was found that the amount of difatty acid acylglutamic acid lysine salt is preferably 0.01 to 2% by mass, more preferably 0.1 to 1.0% by mass.

Example 18: Solid white powder (component) (mass%)
(1) Cetyl 2-ethylhexanoate 3.0
(2) Methylphenylpolysiloxane 2.0
(3) Diisostearyl malate 3.0
(4) n-octylsilylated talc 30.0
(5) n-octylsilylated sericite remaining amount (6) n-octylsilylated mica 10.0
(7) Polyalkylmethacrylate 7.0
(8) Silica 3.0
(9) Yellow iron oxide 1.0
(10) Bengala 0.2
(11) Black iron oxide 0.015
(12) (Hydroxyethyl acrylate /
Acryloyldimethyltaurine Na) copolymer 0.4
(13) Dilauroylglutamate lysine Na 0.2
(14) Antioxidant appropriate amount (15) Preservative 0.4
(Manufacturing method)
Solid white powder was obtained in the same manner as in Example 1.

Example 19: Blusher (1) Diisostearyl malate 4.0
(2 Methylpolysiloxane 3.0
(3) Methylphenylpolysiloxane 2.0
(4) Remaining talc (5) Sericite 20.0
(6) Mica 10.0
(7) Synthetic phlogopite 5.0
(8) Silica 5.0
(9) Boron nitride 4.0
(10) Titanium oxide 0.2
(11) Red No. 226 0.2
(12) Yellow iron oxide 0.15
(13) Titanium oxide coated mica 6.0
(14) Polyacrylate crosspolymer 6 0.4
(15) Dilauroyl glutamate lysine Na 0.2
(16) Antioxidant appropriate amount (17) Preservative 0.4
(Manufacturing method)
A blusher was obtained in the same manner as in Example 1 above.

Example 20: Eye shadow (1) Hydrogenated polyisobutene 6.0
(2) Methylpolysiloxane 4.0
(3) Diisostearyl malate 8.0
(1) n-Octylsilylated talc Residual amount (2) Synthetic phlogopite 10.0
(3) Boron nitride 3.5
(4) Polyalkyl acrylate 4.0
(5) Yellow iron oxide 0.1
(6) Red No. 226 0.2
(5) Titanium oxide coated mica 30.0
(6) Titanium oxide coated synthetic phlogopite 10.0
(7) (Na acrylate / acryloyl dimethyl taurine /
Dimethylacrylamide) Crosspolymer 0.3
(15) Dilauroyl glutamate lysine Na 0.2
(16) Antioxidant appropriate amount (17) Preservative 0.4
(Manufacturing method)
A blusher was obtained in the same manner as in Example 1 above.

Examples 18 to 20 were all cosmetics excellent in appearance, impact resistance, feeling of use, and makeup sustainability.

Claims (4)

In a solid powder cosmetic obtained by a wet manufacturing method in which a powder composition and a volatile solvent are mixed to form a slurry, and after filling the container, the volatile solvent is removed and molded.
A solid powder cosmetic in which the volatile solvent contains the following components (A) and (B), and the powder composition contains the following components (C) to (F).
Component (A): 70% or more and 100% or less of water Component (B): One or two or more selected from volatile alcohols 0% or more and 30% or less Component (C): Acrylic water-soluble polymer component (D): Difatty acid acyl glutamic acid lysine salt component (E): Powder component (F): Oil agent Component (C) is an acrylic water-soluble polymer comprising (hydroxyethyl acrylate / acryloyl dimethyl taurine Na) copolymer, (Na acrylate / acryloyl dimethyl taurine Na) copolymer, (acrylamide / ammonium acrylate) copolymer, polyacrylate The solid powder cosmetic according to claim 1, comprising at least one selected from the group consisting of 13 and ammonium polyacrylate. The solid powder cosmetic according to claim 1 or 2, wherein the content of the component (C) of the acrylic water-soluble polymer is 0.01 to 1.0 mass% with respect to the total amount of the powder composition. The solid powder cosmetic according to any one of claims 1 to 3, wherein the content of the di-fatty acid acylglutamic acid lysine salt of component (D) is 0.01 to 2.0 mass% with respect to the total amount of the powder composition.