JP2017160169A - Solid powder cosmetic - Google Patents

Abstract

An object of the present invention is to provide a solid powder cosmetic having a good feeling in use and having sufficient impact resistance by a wet molding method using an aqueous solvent. A cosmetic base prepared by mixing a powder containing the following components (A) and (B) with an oil agent containing (C), and an aqueous solvent are mixed to form a slurry. And removing the solvent after filling in a container. (A) (fluorination / hydration / oxidation) / (Mg / K / Si) (B) Powder having hydrophobicity and flexibility (C) Water hydrated at room temperature or more when hydrated at normal temperature Hydration agent that can hydrate water [selection diagram] None

Description

  The present invention relates to a solid powder makeup characterized in that a cosmetic base prepared by mixing a powder and an oil is mixed with an aqueous solvent to form a slurry, filled in a container, and then the solvent is removed. In the manufacturing method of a material, it is related with the solid-powder cosmetics which have the favorable feeling of use and sufficient impact resistance by containing a specific powder and oil agent.

  The solid powder cosmetic manufacturing method includes a dry molding method in which powder and oil are mixed and then compacted, and a volatile solvent is added to a cosmetic base material in which powder and oil are mixed to form a slurry, which is then filled into a container. There is a wet molding method for obtaining cosmetics by drying and removing volatile solvents. In the wet molding method, conventionally, volatile oils such as volatile silicones and low-boiling hydrocarbons have been used as solvents, but in recent years, it has become necessary to use aqueous solvents from the viewpoint of environmental protection. However, when an aqueous solvent is used, the resulting product has problems such as insufficient amount of powder and smoothness at the time of coating, and poor impact resistance.

  In order to solve such a problem, a powder having bond moldability and a specific composite powder, a method of blending hydrocarbon oil (Patent Document 1), a hydrophobized powder and a polyhydric alcohol, a specific silicone gel composition, Method of blending specific activator (Patent Document 2), Hydrophobized powder and polyhydric alcohol, Specific flexible organic resin powder, Method of blending specific activator (Patent Document 3), Hydrophobized powder A method of blending a polyhydric alcohol, a hydrated oil, a specific activator (Patent Document 4), a layered silicate mineral and a hydrophilic spherical powder, and a method of blending a specific oil (Patent Document 5) are known. .

Japanese Patent No. 4594075 Japanese Patent No. 5236380 Japanese Patent No. 5342195 Japanese Patent No. 5432656 JP 2014-141482 A

  However, none of the solid powder cosmetics obtained by the above wet molding method is sufficient in terms of impact resistance, and solid powder cosmetics that are still satisfactory in terms of both excellent usability and impact resistance. The current situation is that it was not obtained.

As a result of intensive studies to solve the above-mentioned problems, the inventors of the present application have included the following components (A) to (C) in the cosmetic base material, and thus, by a wet molding method using an aqueous solvent. The inventors have found that a solid powder cosmetic excellent in usability and impact resistance can be obtained, and have completed the present invention. That is, the present invention is characterized in that a cosmetic base material containing the following components (A) to (C) and an aqueous solvent are mixed to form a slurry, and after filling the container, the solvent is removed. The present invention provides a method for producing a solid powder cosmetic and a solid powder cosmetic obtained by the production method.
(A) (fluorination / hydroxylation / oxidation) / (Mg / K / silicon)
(B) Hydrophobic and flexible powder (C) A water-holding oil capable of holding water equal to or more than its own weight when held at room temperature

  The solid powder cosmetic of the present invention has excellent usability and impact resistance in a wet molding method using an aqueous solvent as a solvent.

Hereinafter, the present invention will be described in detail. The component (A) (fluorination / hydroxylation / oxidation) / (Mg / K / silicon) used in the present invention is an extender, and any pigment can be used as long as it is usually used in cosmetics. Is not particularly limited. Examples of such commercially available powders include Soft Sericite T-6, Soft Sericite SH (manufactured by Dainippon Kasei Co., Ltd.), and the like.
The component (A) used in the present invention may be used after being subjected to a surface treatment, or may be untreated, but is preferably subjected to a surface treatment with a silicone compound from the viewpoint of impact resistance.

  The content of the component (A) used in the present invention is preferably 5% by mass or more and more preferably 10% by mass or more in the cosmetic base material from the viewpoint that a smoother and moist use feeling can be obtained.

The powder having the hydrophobicity and flexibility of the component (B) used in the present invention is a powder that is determined to be hydrophobic by the following hydrophobicity test and has a compressive strength of 1.0 MPa or less. In the hydrophobicity test, 10 g of water and 0.1 g of the evaluation powder are put in a glass bottle, and then the lid is capped and stirred vigorously up and down, and then left to stand for one day and observed. As a result, a substance in which most of the evaluation powder is present on the water surface is made hydrophobic. The compressive strength is a force required to deform the diameter of the powder particles by 10% with a microhardness meter, and the following formula, compressive strength (MPa) = 27.5 × P / πd ² (P = Load required to deform 10% of particles (N), d = value of particle diameter (mm)).
Moreover, as long as it is normally used for cosmetics, the component (B) used for this invention can use any thing, and may use it 1 type or in combination of 2 or more types. For example, hydrophobic powders such as (acrylates / ethylhexyl acrylate) crosspolymer and nylon, or urethane that has been treated with a silicone compound or a fluorine compound on a surface that is originally hydrophilic can be used. From the viewpoint of usability, (Acrylates / Ethylhexyl acrylate) crosspolymer is preferred. Examples of such commercially available powders include techpolymer ACX-806C and techpolymer ACX-1502C (manufactured by Sekisui Plastics Co., Ltd.).

  The content of the component (B) used in the present invention is preferably 10% by mass or more and more preferably 15% by mass or more in the cosmetic base material from the viewpoint that more excellent impact resistance can be obtained. Moreover, 50 mass% or less is preferable and 30 mass% or less is more preferable from the point that a moderate adhesion | attachment feeling is acquired at the time of application | coating.

  The shape and particle size of the component (B) used in the present invention are not particularly limited, but a spherical powder having an average particle size of 2 to 10 μm is preferable. This is because when the average particle diameter is 2 μm or more and spherical, a smoother feeling is obtained, and when it is 10 μm or less, more excellent impact resistance is obtained. In the present invention, the average particle diameter is a median diameter value measured by dispersing a powder in ethanol using a laser diffraction particle diameter measuring device (LA-920: manufactured by Horiba Seisakusho). The spherical powder refers to a powder having a substantially spherical shape, and the spherical powder preferably has a major axis / minor axis ratio of 1.2 or less.

  Any water-repellent oil agent of component (C) used in the present invention can be used as long as it is an oil agent having a water-holding capacity equal to or more than its own weight in the following water-holding test. Two or more kinds may be used in combination. In the water-holding test, purified water is kneaded while gradually dropping into 10 g of an evaluation oil agent at room temperature, and the point at which water does not enter ends. For example, dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), dimer linoleic acid di (isostearyl / phytosteryl), (isostearic acid / behenic acid) (glyceryl / polyglyceryl-6) esters, hexa (hydroxy) Stearic acid / stearic acid / rosinic acid) dipentaerythrityl and the like, and dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) is preferable from the viewpoint of use feeling. Plandool-H (made by Nippon Seika Co., Ltd.) etc. are mentioned as a commercial item of such an oil agent.

  The content of the component (C) used in the present invention is preferably 0.5% by mass or more and more preferably 1% by mass or more in the cosmetic base material from the viewpoint that more excellent impact resistance can be obtained. Moreover, 5 mass% or less is preferable and 3 mass% or less is more preferable from the point that a smooth usability | use_condition is obtained.

  In the solid powder cosmetic of the present invention, any cosmetic base material other than the above components can be used as long as it is used in ordinary cosmetics, and powders and oils other than the above can be used. .

  Examples of powders other than the above include inorganic powders such as talc, sericite, mica, synthetic mica, silica, barium sulfate, alumina, boron nitride, titanium oxide, iron oxide, and zinc oxide, silk powder, and crystalline cellulose powder. Organic powder etc. are mentioned, 1 type (s) or 2 or more types can be used from these. In addition, these powders may be used after being subjected to a surface treatment with a generally known treatment agent such as a fluorine compound, a silicone compound, or a surfactant.

  Oils other than the above include liquid paraffin, squalane, microcrystalline wax, ceresin, cetyl alcohol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, di-2-ethylhexane Neopentyl glycol diacid, neopentyl glycol dicaprylate, neopentyl glycol dicaprate, glycerin tri-2-ethylhexanoate, glycerin triisostearate, olive oil, macadamia nut oil, sunflower oil, lanolin, lauric acid, myristic acid, palmitic acid, stearin Examples include oils such as acids, bees wax, candelilla wax, carnauba wax, linear or cyclic dimethylpolysiloxane, and methylphenylpolysiloxane. That.

  In addition to the above components, it may contain other components commonly used in cosmetics, for example, surfactants, fragrances, medicinal ingredients, cooling agents, ultraviolet absorbers, stabilizers, antioxidants. , Preservatives, pH adjusters, viscosity adjusters, preservatives, cosmetic ingredients, and the like.

The cosmetic base material of the present invention is prepared by stirring and mixing the above components using an apparatus for producing a normal powder cosmetic. Specifically, the oil agent containing the component (C) is first mixed and dissolved by heating as necessary. On the other hand, the powder containing component (A) and (B) is mixed uniformly. The powder is prepared by adding an oil agent to the powder and uniformly dispersing and grinding.
The cosmetic base material thus obtained and an aqueous solvent are mixed to form a slurry, filled in a container, and then the solvent is removed to obtain a solid powder cosmetic.

  The aqueous solvent used for mixing with the cosmetic base material is preferably water or one or more aqueous solutions selected from low-boiling alcohols such as ethyl alcohol, propyl alcohol, isopropyl alcohol, and butyl alcohol. Water alone or ethyl An ethyl alcohol aqueous solution in which alcohol is dissolved in water is more preferable.

  In the present invention, when a slurry is prepared using a cosmetic base material and an aqueous solvent, the aqueous solvent is 50 to 100 parts by mass with respect to 100 parts by mass of the cosmetic base material because the slurry has fluidity suitable for filling. Is preferably used.

  In the present invention, after mixing the cosmetic base material and the aqueous solvent, when filling the container and removing the solvent by heat drying, the heating temperature and apparatus are not limited, but in order to dry and distill all the solvent It is preferable that it is 50 degreeC or more.

  The solid powder cosmetic in the present invention can be applied as a foundation, a pressed powder, an eye color, a face color, or the like. In particular, since the impact resistance is very excellent as compared with the prior art, it is suitable for a foundation having a large area of a molded product and having many opportunities to carry and use.

Next, the present invention will be described in more detail with reference to examples. The present invention is not limited thereby. In addition, the numerical value in a table | surface shows content (mass%).
Examples 1 to 11 and Comparative Examples 1 to 7: Powder Foundation Powder foundations were prepared according to the formulation shown in Table 1 and the following production method, and evaluated according to the following evaluation methods and criteria. These results are shown together in Table 1.

(Production method)
A: Oil component components 15 to 17 are mixed and heated to 80 ° C. to dissolve.
B: The powder components 1-14 are mixed uniformly.
C: A is added to B and uniformly dispersed, and after pulverization, a cosmetic base material is obtained.
100 parts by mass of D: C cosmetic base material and 80 parts by mass of aqueous solvent were uniformly mixed to prepare a slurry. The aqueous solvent was used by previously mixing 90 parts by mass of water and 10 parts by mass of ethanol.
E: D was filled in a metal pan (rectangular of 54 mm × 42 mm, thickness 5 mm), and compression molded while vacuuming.
F: The molded product was dried in a 70 ° C. dryer for 10 hours to obtain a powder foundation.

(Evaluation method 1; feeling of use)
Five professional panelists in their 20s and 40s use the powder foundations of the above examples and comparative examples, and give a score based on the following evaluation criteria for the feeling of use such as removal to the puff and smoothness during application. Then, the average score was calculated for each powder foundation and judged according to the following criteria.
<Evaluation criteria>
[Use feeling] [score]
Very good: 5
Good: 4
Normal: 3
Somewhat bad ： 2
Bad: 1
<Criteria>
[Average score] [Judgment]
4.5 or more ◎
3.5 to less than 4.5 ○
2 to less than 3.5
Less than 2 ×

(Evaluation Method 2: Impact resistance)
About each of the five powder foundations of the said Example and a comparative example, it was dropped horizontally on the PVC board from the height of 100 cm. This was repeated until cracks and cracks occurred, and the number of drops until cracks and cracks occurred was averaged for 5 sheets, and judged according to the following criteria.
<Criteria>
◎: 3.0 times or more ○: 2.0 or more and less than 3.0 times Δ: 1.0 or more and less than 2.0 times ×: Less than 1.0 times

  In Examples 1 to 11, both the feeling in use and the impact resistance were good. On the other hand, Comparative Examples 1 to 3 which do not contain (fluorination / hydroxylation / oxidation) / (Mg / K / silicon) and Comparative Example 7 which contains 7% by mass of a water-containing oil have poor usability. In Comparative Example 5 containing polyurethane, which is a hydrophilic elastic powder, the impact resistance was not sufficient. In addition, Comparative Example 4 which does not contain elastic powder and Comparative Example 6 which does not contain a water-holding oil did not have sufficient usability and impact resistance. From this, the necessity of containing (fluorination / hydroxylation / oxidation) / (Mg / K / silicon), a powder having hydrophobicity and flexibility, and a water-containing oil was clarified.

Example 12
Presto powder formula Ingredient Content (mass%)
(1) Hydrogen Dimethicone 3% treatment (fluorination / hydration / oxidation) / (Mg / K / silicon) * 1 55.00
(2) Synthetic mica remaining amount (3) Yellow iron oxide 0.20
(4) Bengala 0.25
(5) Black iron oxide 0.05
(6) (Acrylates / Ethylhexyl acrylate) Crosspolymer * 6 20.00
(7) Preservative 0.50
(8) Diethylhexyl succinate 4.00
(9) Diisostearyl malate 1.00
(10) Dimer dilinoleic acid di (isostearyl / phytosteryl) * 12 1.00
(11) Antioxidant appropriate amount (12) Perfume appropriate amount
Total 100.00
* 12: LUSPLAN PI-DA (Nippon Seika Co., Ltd.)
(Production method)
A: The oil agent components 8 to 11 are mixed and heated to dissolve. After cooling, component 12 is added.
B: Powder components 1 to 7 are mixed uniformly.
C: A is added to B and uniformly dispersed, and after pulverization, a cosmetic base material is obtained.
100 parts by mass of D: C cosmetic base material and 70 parts by mass of water were uniformly mixed to prepare a slurry.
E: D was filled in a metal pan and compression molded with vacuum suction.
F: The molded product was dried in a 70 ° C. dryer for 10 hours to obtain a pressed powder.

Example 13
Eye shadow prescription Ingredient Content (mass%)
(1) Hydrogen dimethicone 3% treatment (fluorination / hydration / oxidation) / (Mg / K / silicon) * 1 20.00
(2) Dimethicone 3% treated sericite Residual amount (3) Nylon-12 * 8 18.00
(4) Silica 1.00
(5) Red No. 226 0.30
(6) Gunjo 1.00
(7) Mica titanium 10.00
(8) Preservative 0.50
(9) Dimethicone 5.00
(10) Squalane 6.00
(11) Hexa (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl * 13 2.00
(12) Antioxidant appropriate amount (13) Perfume appropriate amount
Total 100.00
* 13: Cosmall 168ARV (Nisshin Oillio Group)
(Manufacturing method)
A: The oil agent components 9 to 12 are mixed and dissolved by heating. After cooling, component 13 is added.
B: The powder components 1-8 are mixed uniformly.
C: A is added to B and uniformly dispersed, and after pulverization, a cosmetic base material is obtained.
100 parts by mass of D: C cosmetic base material and 70 parts by mass of water were uniformly mixed to prepare a slurry.
E: D was filled in a resin dish, and compression molded while vacuuming.
F: The molded product was dried in a 70 ° C. dryer for 10 hours to obtain an eye shadow.

Example 14
Teak color Ingredient content (% by mass)
(1) Hydrogen Dimethicone 3% treatment (fluorination / hydration / oxidation) / (Mg / K / silicon) * 1 30.00
(2) Remaining amount of talc (3) Acrylates / ethylhexyl acrylate) crosspolymer * 6 30.00
(4) Silica 1.50
(5) Red No. 226 0.30
(6) Yellow No. 5 0.35
(7) Bengala 0.80
(8) Bengala-coated mica titanium 5.00
(9) Preservative 0.20
(10) Diphenylsiloxyphenyl trimethicone 10.00
(11) Trimethylolpropane triisostearate 0.50
(12) Sorbitan sesquiisostearate 0.50
(13) Dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) * 10 1.50
(14) Antioxidant proper amount (15) Perfume proper amount
Total 100.00
(Manufacturing method)
A: Oil component components 10 to 14 are mixed and heated to dissolve. After cooling, component 15 is added.
B: Powder components 1 to 9 are mixed uniformly.
C: A is added to B and uniformly dispersed, and after pulverization, a cosmetic base material is obtained.
100 parts by mass of D: C cosmetic base material and 80 parts by mass of water were uniformly mixed to prepare a slurry.
E: D was filled in a resin dish, and compression molded while vacuuming.
F: The molded product was dried in a 70 ° C. dryer for 10 hours to obtain a cheek color.

  Each of Examples 12 to 14 was a cosmetic material having good usability and impact resistance.

The solid powder cosmetic of the present invention contains (fluorination / hydroxylation / oxidation) / (Mg / K / silicon), a powder having hydrophobicity and flexibility, and a water-holding oil in the cosmetic base material. Thus, in a wet molding method using an aqueous solvent as a solvent, it is possible to have excellent usability and impact resistance.

Claims (8)

A cosmetic base material prepared by mixing a powder containing the following components (A) and (B) and an oil containing (C) and an aqueous solvent are mixed to form a slurry and filled into a container. Then, the method for producing a solid powder cosmetic is characterized in that the solvent is removed.
(A) (fluorination / hydroxylation / oxidation) / (Mg / K / silicon)
(B) Hydrophobic and flexible powder (C) A water-holding oil capable of holding water equal to or more than its own weight The content of the component (A) is 5% by mass or more of the total amount of the cosmetic base material, the content of the component (B) is 10 to 50% by mass of the total amount of the cosmetic base material, and the content of the component (C) is the cosmetic group. The method for producing a solid powder cosmetic according to claim 1, which is 0.5 to 5% by mass of the total amount of the material. The method for producing a solid powder cosmetic according to claim 1 or 2, wherein (fluorination / hydroxylation / oxidation) / (Mg / K / silicon) of component (A) is surface-treated with a silicone compound. The method for producing a solid powder cosmetic according to any one of claims 1 to 3, wherein the powder having hydrophobicity and flexibility of the component (B) is a spherical powder having an average particle diameter of 2 to 10 µm. The method for producing a solid powder cosmetic according to any one of claims 1 to 4, wherein the powder having hydrophobicity and flexibility of the component (B) is an (acrylates / ethylhexyl acrylate) crosspolymer. The method for producing a solid powder cosmetic according to any one of claims 1 to 5, wherein the water-holding oil of component (C) is dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl). The manufacturing method according to any one of claims 1 to 6, wherein the solid powder cosmetic to be manufactured is a foundation. The solid powder cosmetic manufactured by the manufacturing method as described in any one of Claims 1-7.