Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/29—Titanium; Compounds thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
  • A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
  • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
  • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers

Definitions

• the present invention relates to a composite powder that hardly changes in color over time, and a makeup cosmetic containing the composite powder.
• the emulsified foundation has a fresh feeling of use, and in particular, the water-in-oil type emulsified foundation using silicone oil has a characteristic that a refreshing refreshing feeling can be obtained (Non-patent Document 1).
• Non-patent Document 1 Non-patent Document 1
• the emulsification foundation has a problem that even if it is a preferable color tone immediately after application, the color tone becomes darker and reddish black as time passes.
• Patent Document 1 describes that the pigment surface is coated with silica to make it difficult to get wet with sebum and sweat and to suppress changes in the color tone and concealability of the pigment.
• Patent Document 2 describes a powder cosmetic obtained by coating the surface of pigment powder with two types of silicone layers, branched silicone and methylhydrogenpolysiloxane, and heat-treating the powder powder. It is said that color change (dullness) due to can be suppressed.
• an object of the present invention is to provide a composite powder that does not produce a color dullness even when time passes when it is blended in a makeup cosmetic, particularly an emulsion foundation, and a makeup cosmetic blended with the composite powder.
• the present invention provides a composite powder characterized in that an inorganic color material is supported on the surface of a flaky powder, and the surface is further hydrophobized, and a makeup cosmetic containing the composite powder. To do.
• the composite powder of the present invention maintains a good color tone for a long time immediately after application, even when blended in a liquid makeup cosmetic such as an emulsified foundation containing a large amount of water and oil, with the passage of time. can do.
• the composite powder of the present invention is obtained by hydrophobizing the surface of a composite powder in which an inorganic color material is supported on the surface of a flaky powder.
• the flaky powder used in the present invention is generally referred to as flaky (or plate-like, scale-like) powder, and may be one usually used in the cosmetic field, and is not particularly limited. Specific examples include flaky powders such as mica, talc, sericite, kaolin, plate-like barium sulfate, alumina, boron nitride, phlogopite, synthetic phlogopite, and silica.
• the particle size of the flaky powder is not particularly limited, but a powder having an average particle size of usually 1 to 50 ⁇ m, preferably 3 to 30 ⁇ m is preferably used.
• an inorganic color material is supported on the surface of the flaky powder.
• the inorganic color material may be an inorganic color material used in cosmetics, for example, bengara, yellow iron oxide, black iron oxide, titanium oxide, or the like.
• examples of commercial products include Bengala # 216P manufactured by Daito Kasei Kogyo Co., Ltd., TAROX synthetic iron oxide LL-100P manufactured by Titanium Industry Co., Ltd., TAROX synthetic iron oxide BL-100P manufactured by TDK, TAROX synthetic iron oxide E-516P manufactured by TDK
• TYPEKE CR-50 manufactured by SACHLEBEN RC402 manufactured by SACHTLEBEN can be used.
• the particle size of the inorganic color material is not particularly limited, but an inorganic color material having an average particle size of usually 0.1 to 1 ⁇ m, preferably 0.2 to 0.6 ⁇ m is preferably used.
• the inorganic color material is supported on the surface of the flaky powder.
• “supported” means that the surface of the flaky powder has an inorganic color material attached to it by some force, and the mechanism is not particularly limited, such as physical adsorption such as chemical adsorption or electrostatic adsorption. Including adhesion by.
• the method for supporting the inorganic color material on the flaky powder is not particularly limited.
• a flaky powder and an inorganic color material are dispersed in a dispersion medium, and adsorption is caused by the interaction between the two in the dispersion medium. Obtainable.
• the ratio of the flaky powder to the inorganic color material in the composite powder of the present invention is not particularly limited, but is generally in the range of 2: 8 to 8: 2 by weight.
• the flaky fine powder thus obtained is said to have better dispersibility when blended in cosmetics than when an inorganic color material is used alone, and the feel of the resulting cosmetics will be better. (See JP-A-9-132514). However, since the flaky fine powder described in JP-A-9-132514 has not been subjected to a hydrophobizing treatment, when blended with a water-in-oil emulsion, color development and makeup persistence are poor, and the emulsion base contains It is considered that the stability of the emulsion is weak, and it has not been suggested at all how such a structure affects the color change of the emulsified cosmetic.
• the composite powder of the present invention is treated as a composite powder in an emulsified base by hydrophobizing the surface of the flaky powder carrying the inorganic color material obtained as described above. It is characterized by having improved stability.
• the hydrophobizing treatment in the present invention can be carried out by using a technique usually used in the cosmetic field. Specifically, it can be carried out by surface treatment using a hydrophobizing agent as described below.
• Methyl hydrogen polysiloxane (silicon KF99P manufactured by Shin-Etsu Chemical Co., Ltd.), methyl hydrogen polysiloxane / dimethyl polysiloxane copolymer (silicon KF-9901 manufactured by Shin-Etsu Chemical Co., Ltd.), dimethyl polysiloxane, JP-A-2001-72891 Branched silicone-based (ethoxy functional) treatment agents (trade name: KF9908, KF9909, manufactured by Shin-Etsu Chemical Co., Ltd.), and silicones such as acrylic silicone treatment agents (trade name: KP574, manufactured by Shin-Etsu Chemical Co., Ltd.) described in WO2004 / 091563. Processing used.
• Treatment using an alkylalkoxysilane compound such as octyltriethoxysilane (DYNASILAN OCTEO manufactured by EVONIK DEGUSSA), hexyltrimethoxysilane, octadecyltriethoxysilane or the like.
• Treatment using fatty acids such as palmitic acid and stearic acid.
• Alkylated saccharide treatment such as dextrin palmitate in which a part of the hydroxyl group of dextrin is alkylesterified; metal soap treatment using an alkali metal salt or alkaline earth metal salt of a fatty acid.
• the present invention also provides a makeup cosmetic containing the above-mentioned composite powder.
• the makeup cosmetic compounded with the composite powder of the present invention is not limited, but when it is a foundation, particularly an emulsified foundation, especially a water-in-oil emulsion foundation, it exhibits the features of the composite powder of the present invention. It is preferable because it is easy.
• the compounding amount of the composite powder in the makeup cosmetic of the present invention is generally 0.01 to 50% by mass, preferably 0.01 to 25% by mass, more preferably 2 to 20% by mass. It is particularly preferable that the composite powder occupies 50% or more of the total blending amount of the colorant blended in the cosmetic because the effect is more exhibited.
• the white color material is preferably a composite powder.
• the preferable blending amount can be appropriately selected within the above range depending on the purpose and / or application of the cosmetic, but depending on the color of the composite powder (the color of the inorganic color material constituting the composite powder). May be different.
• the inorganic color material is a white color material such as titanium oxide
• the preferred blending amount is 0.1 to 30% by mass, more preferably 0.1 to 25%, and in the case of a red color material such as Bengala. 0.1 to 20% by mass, more preferably 0.1 to 15% by mass, and in the case of a yellow color material such as yellow iron oxide, 0.1 to 25% by mass, more preferably 0.1 to 20% by mass.
• a black color material such as black iron oxide
• the content is 0.01 to 10% by mass, more preferably 0.01 to 5% by mass.
• the makeup cosmetic of the present invention is preferably a liquid cosmetic, particularly an emulsified foundation.
• the emulsification foundation may be either a water-in-oil type or an oil-in-water type, but is particularly preferably a liquid type or cream type water-in-oil type emulsification foundation.
• the makeup cosmetic of the present invention may contain volatile components (volatile oil and water) in the range of 10 to 90% by mass, preferably 20% or more, more preferably 40% by mass or more. Good. By containing a large amount of volatile oil, it is excellent in spreading when applied to the skin, and a refreshing feel can be obtained.
• the volatile oil content is not particularly limited, but volatile silicone oil such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, dimethylpolysiloxane (low molecular weight), decane, isodecane, dodecane, isododecane.
• hydrocarbon oils such as tetradecane, isotetradecane, hexadecane, isohexadecane, octadecane, and isooctadecane.
• the makeup cosmetic of the present invention may contain other components usually used in makeup cosmetics as long as the effects of the present invention are not impaired.
• Example 1 Water-in-oil type emulsion foundations having the compositions listed in Table 1 below were prepared. Each foundation was applied to the artificial skin surface, and the color tone immediately after application, after 60 minutes and after 120 minutes was measured with a colorimeter, and the change from the color tone immediately after application (color difference ( ⁇ E)) was calculated. The results are also shown in Table 1. Further, the makeup-holding effect (dullness) over time of the water-in-oil emulsion foundation was evaluated by the following evaluation method. ⁇ Evaluation method> A sensory test was performed on each evaluation item by using 10 cosmetic panelists actually using cosmetics. Evaluation results were evaluated according to the following three levels. ⁇ : 7 or more out of 10 people judged good ⁇ : Four to six out of 10 people judged good X: 3 or less out of 10 people judged good
• Oil phase base Decamethylcyclopentasiloxane 20.39
• Polyoxyethylene / methylpolysiloxane copolymer 3 Methylphenylpolysiloxane 1.5
• Octyl methoxycinnamate 3 Isostearic acid 0.5
• Aqueous base Ion-exchanged water 39.3 Dynamite Glycerin 3 Dipropylene glycol 5 1,3-butylene glycol 2 Phenoxyethanol 0.5 EDTA-3Na2H 2 O 0.2 Total 50
• Example 2 A makeup cosmetic having the following composition was prepared.
• Ingredient Amount (% by mass) Microcrystalline wax 5 Dimethylpolysiloxane 10 Decamethylcyclopentasiloxane 15 Polyoxyethylene / methylpolysiloxane copolymer 2 Dipropylene glycol 3 Palmitic acid 0.5 Sorbitan sesquiisostearate 1 Alkyl-modified silicone resin-coated silicic acid anhydride 2 Compounded powder of Production Example 4 10 Composite powder of Production Example 1 0.86 Composite powder of Production Example 2 0.85 Composite powder of Production Example 3 0.1 Cross-linked silicone powder 3 Tocopherol acetate 0.1 ⁇ -tocopherol 0.1 P-Hydroxybenzoate appropriate amount Merirot extract 2 Purified water residue
• Example 3 Oil-in-water foundation component blending amount (% by mass) Dimethylpolysiloxane 8 Behenyl alcohol 0.5 Batyl alcohol 0.5 1,3-Butylene glycol 5 Macadamia nut oil 0.1 Isostearic acid 1.5 Stearic acid 1 Behenic acid 0.5 Cetyl 2-ethylhexanoate 5 Polyoxyethylene glyceryl monostearate 1 Self-emulsifying glyceryl monostearate 1 Yellow iron oxide coated mica titanium 2 Composite powder of Production Example 4 4 Talc 0.5 Kaolin 3 Synthetic phlogopite 0.1 Cross-linked silicone powder 0.1 Silicic anhydride 5 Potassium hydroxide 0.2 Triethanolamine 0.8 DL- ⁇ -tocopherol acetate 0.1 Sodium hyaluronate 0.1 Paraoxybenzoic acid ester 2-ethylhexyl paramethoxycinnamate 1 Composite powder of Production Example 1 0.9 Composite powder of Production Example 2 1.2 Composite powder of Production

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Emergency Medicine (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43297607

Family Applications (1)

Country Status (3)

Cited By (2)

Citations (6)

• 2009
  • 2009-06-05 JP JP2009135706A patent/JP2010280619A/ja active Pending
• 2010
  • 2010-05-19 WO PCT/JP2010/058431 patent/WO2010140470A1/ja active Application Filing
  • 2010-05-31 TW TW99117440A patent/TW201043250A/zh unknown

Patent Citations (6)

Also Published As

Similar Documents

Legal Events