JPH0417162B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to make-up cosmetics, and more particularly to make-up cosmetics containing cured organopolysiloxane powder. [Prior Art] Powders conventionally used in makeup cosmetics include talc, kaolin, bentonite, silicic anhydride, silicon carbide, alumina, titanium oxide, carbon black, graphite, yellow iron oxide, red iron oxide, and mica. Inorganic pigment powders such as , mica titanium, zirconium oxide, sericite, calamine, and ultramarine are often used. Additionally, examples are known in which organic synthetic resins such as polyethylene resin, polypropylene resin, polyamide resin, acrylic resin, vinyl chloride resin, epoxy resin, and polystyrene resin are added to cosmetics (Japanese Patent Laid-Open No. 52-99236). (see official bulletin). [Problems to be Solved by the Invention] However, the above-mentioned inorganic pigment powder for make-up cosmetics has disadvantages in that it lacks sharpness of hue, coloring power, and transparency. Furthermore, the inorganic pigment powder is generally produced by pulverizing natural minerals, but because of its irregular particle shape, it has the disadvantage that it lacks smoothness and spreadability when applied as a makeup cosmetic. Further, even when organic synthetic resin powder was added to cosmetics, there was no effect of imparting a natural color feeling. The present invention aims to eliminate the above-mentioned drawbacks, and provides a make-up cosmetic that has a smooth application feeling, a moist feel, and can impart a healthy and natural color feel. It is something. [Description of Means and Effects for Solving Problems] The above object is to provide a makeup product characterized by containing a cured organopolysiloxane powder having a particle size of 100 microns or less, a pigment powder, and a binding oil agent. This can be achieved with cosmetics. To explain this, the cured organopolysiloxane powder used in the present invention makes the make-up cosmetics of the present invention feel smooth when applied to the skin, gives a moisturizing feeling, and has a clear hue to the pigment. It is a necessary component to impart coloring strength and transparency, and to provide a healthy color tone. The type of curable organopolysiloxane composition that is the raw material for the cured organopolysiloxane powder of this component is not particularly limited, and may include an organopolysiloxane elastomer composition that is cured by an addition reaction in the presence of a platinum catalyst; An organopolysiloxane elastomer composition that cures by a condensation reaction (herein, condensation reactions include dehydration, dehydrogenation, dealcoholization, deoxime, deaminerization, deamidation, decarboxylic acid, and deketoneization), organic peroxides Examples include organopolysiloxane elastomer compositions that are cured under heating by irradiation with γ-rays, ultraviolet rays, or electron beams, and organopolysiloxane resin compositions that are cured by each of the above reactions. Examples of the organic group bonded to the silicon atom of the organopolysiloxane which is the main ingredient of the above-mentioned curable organopolysiloxane composition are monovalent hydrocarbon groups, including methyl, ethyl, propyl, and butyl groups. Substituted groups such as alkyl groups such as octyl groups, vinyl groups, allyl groups, alkenyl groups such as propenyl groups, 2-phenylethyl groups, 2-phenylpropyl groups, and 3,3,3-trifluoropropyl groups A monovalent hydrocarbon having an alkyl group, an aryl group such as a phenyl group, a tolyl group, a xylyl group, a substituted aryl group such as a phenylethyl group, or an epoxy group, an amino group, a hydroxyl group, a carboxyl group, a carboxylic acid ester group, or a mercapto group. Examples include groups. This component can be obtained by spraying a thermosetting composition containing the above-mentioned organopolysiloxane as a main ingredient and curing it into a hot air stream to obtain a powder, or by using an energy ray-curable composition containing the above-mentioned organopolysiloxane as a main ingredient. A method of spraying and curing under high-energy irradiation to obtain a powder, a method of spraying and curing a thermosetting composition containing the above-mentioned organopolysiloxane as a main ingredient under heating, or an energy ray-curable composition containing the above-mentioned organopolysiloxane as a main ingredient. It can be produced by a method of obtaining a powder by curing a material under energy ray irradiation and pulverizing it with a known pulverizer such as a ball mill or an atomizer. The particle size of this ingredient must be less than 100 microns.
This is necessary in order to impart smoothness, dewy feel, and healthy, natural color to the makeup cosmetics of the present invention. The blending amount of this component varies depending on the form of use of the cosmetic and is not particularly limited, but it is preferably 1.0 to 50% by weight in pressed make-up cosmetics, and in liquid make-up cosmetics.
0.1-30% by weight is preferred. The make-up cosmetic composition of the present invention can be obtained by uniformly dispersing and blending the cured organopolysiloxane powder, the pigment powder, and the binder oil. Pigment powders include extender pigments such as talc, kaolin, calcium carbonate, magnesium carbonate, magnesium silicate, silicic anhydride, titanium oxide,
White pigments such as zinc oxide, red iron oxide, yellow iron oxide, chromium oxide, chromium hydroxide, carbon black, inorganic coloring pigments such as ultramarine, organic colorings such as tar pigment, safflower pigment, β-carotene, cochineal, and chlorophyll. Examples include pigments, colored scale foils, bismuth oxychloride, titanium mica, and pearlescent pigments such as mica. Binding oil agents include liquid paraffin, squalane, petrolatum, polyisobutylene, micro wax, isopropyl myristate, myristyl octyldodecanol, di-(2-ethylhexyl)
Succinate, neopentyl glycol diisooctoate, glyceryl monostearate, triglyceride isostearate, coconut fatty acid triglyceride, castor oil, ethanol, octyldodecanol, hexadecyl alcohol, cetyl alcohol, oleyl alcohol, stearyl alcohol, polyethylene glycol, uraric acid , palmitic acid, oleic acid, stearic acid,
Examples include isostearic acid, lanolin, beeswax, hydrocarbons such as olive oil, esters, glycerides, lower alcohols, higher alcohols, polyhydric alcohols, higher fatty acids, and organopolysiloxane fluids. The make-up cosmetic composition of the present invention may further contain water, surfactants, thickeners, preservatives, fragrances, etc., if necessary. [Example] Next, the present invention will be explained with reference to an example. In the examples, parts mean parts by weight. Example 1 100 parts of dimethylpolysiloxane endblocked with dimethylvinylsilyl groups at both ends and represented by the formula _CH2 =CH( _CH3 ) _2SiO [( _{CH3 ) 2SiO} ] ₅₀ -- _Si ( _CH3 )2CH=CH2 , 3.5 parts of methylhydrodiene polysiloxane with the formula (CH ₃ ) ₃ SiO[(CH ₃ )HSiO] ₃₀ Si(CH ₃ ) ₃ blocked at both ends by trimethylsilyl groups, and 0.1 part of 3-methyl-1-butyn-3ol. and as platinum metal itself based on the total amount of organopolysiloxane.
A chloroplatinic acid isopropanol solution in an amount of 10 ppm was uniformly mixed and cured at 150° C. for 2 hours. This cured organopolysiloxane elastomer product was finely pulverized using an atomizer. The obtained cured organopolysiloxane powder was confirmed to have a particle size of 1 to 50 microns by observation with a scanning electron microscope. Next, using this organopolysiloxane cured product powder, oil-based eyeliners were manufactured with the compositions shown in Table 1. In addition, a comparative example was prepared in which no cured organopolysiloxane powder was added. An application test of these oil-based eyeliners was conducted using 10 panelists, and it was found that the oil-based eyeliner of the present invention was able to form a clearer eyeline with deeper color than the comparative example. It also had a moist feel and a smooth feeling when rubbed. Example 2 20 parts of methyltrimethoxysilane, 50 parts of dimethyldimethoxysilane, 20 parts of trimethylmethoxysilane
500 parts of an aqueous hydrochloric acid solution adjusted to pH 4.0 was added to 1 part and 30 parts of tetraethyl silicate, and the mixture was hydrolyzed and condensed for 5 hours, followed by heating and drying to obtain a cured organopolysiloxane resin. Next, this cured organopolysiloxane resin product was finely pulverized using an atomizer. The obtained organopolysiloxane resin cured powder was observed with a scanning electron microscope to
The particle size was confirmed to be 10 microns. A foundation (press molded product) was manufactured from this organopolysiloxane cured powder with the composition shown in Table 2. In addition, a comparative example was prepared in which no cured organopolysiloxane powder was added. When these foundations were applied to a panel of 10 people, it was found that the foundation of the present invention was able to give a healthier and more natural skin tone and was smoother than the comparative example. It had a gentle rubbing feel and a moist feel.

【table】

[Table] [Effects of the Invention] According to the present invention, since it contains hardened organopolysiloxane powder with a particle size of 100 microns or less, pigment powder, and a binding oil agent, it provides a smooth and moisturizing feeling when applied. It is possible to provide a make-up cosmetic that has a soft feel and can impart a healthy and natural color feeling.

Claims (1)

[Claims] 1. A make-up cosmetic comprising a cured organopolysiloxane powder having a particle size of 100 microns or less, a pigment powder, and a binding oil agent.