JP3429570B2 - Cosmetics - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic containing a powder mixture having low cohesion. More specifically, by simultaneously pulverizing the powder constituting the powder cosmetics using a wet-type media mill and removing the solvent, the aggregation of the individual powders is released, and a different kind of powder is interposed between the powders. The present invention relates to a cosmetic which is excellent in feel and color development by blending a moderately mixed weakly agglomerated mixed powder into a cosmetic as compared with a case where an untreated powder is blended. 2. Description of the Related Art Conventionally, titanium mica synthesized by a wet method is frequently used as a solvent or a bond between mica particles by a treatment substance such as titanium oxide during the treatment. It generally has a hard feel due to the cohesive force generated when water is distilled off. [0003] This agglomeration is a strength that does not cause much problem in products manufactured using a medium having a strong crushing force such as a paint, but the crushing power is generally weak, and especially dry crushing is mainly used. In the field of cosmetics, it is strong enough to affect the feel. [0004] In particular, the effects are significant in a group of products such as eye shadows used around the sensitive eyes. [0005] The inventors of the present invention have previously used a wet-medium mill in a solvent to grind titanium mica, and then used a weakly agglomerated mica titanium obtained by distilling off the solvent to improve the feel of cosmetics. It has been found that it can be improved, but not only titanium mica but also other powders such as titanium oxide, iron oxide, carbon black, ultramarine, navy blue, etc. It has been found that a weakly agglomerated mixed powder in which is mixed is obtained and that a cosmetic excellent in feel and color development can be obtained by blending this into a cosmetic. [0006] That is, an object of the present invention is to provide a cosmetic having excellent coloration and feel by using a mixed powder having low agglomeration. [0007] In order to achieve the above object, claim 1 of the present invention is to provide one or more of titanium oxide, iron oxide, carbon black, ultramarine, and navy blue. The pigment and the powder containing mica titanium are simultaneously pulverized using a wet medium mill in a solvent other than water (excluding the powder surface coating solution) , and then the solvent is distilled off. It is a cosmetic containing the weakly agglomerated mixed powder obtained by the above method. Hereinafter, the configuration of the present invention will be described in detail. It is necessary that the powder used in the present invention contains a powder selected from one or more of titanium oxide, iron oxide, carbon black, ultramarine, and navy blue and mica titanium. Examples of the powder used in the present invention include yellow iron oxide, red iron oxide, black iron oxide, navy blue, chromium oxide, carbon black, ultramarine, cobalt blue, lower titanium oxide,
Colored pigments such as blue 404 and red 226, zinc oxide,
White pigments such as titanium oxide, rod-shaped titanium oxide, cerium oxide, zirconium oxide, aluminum oxide, silicon oxide,
Extender pigments such as talc, mica, sericite, kaolin, mica, montmorillonite, pearl pigments such as titanium mica,
Metal salts such as barium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, and magnesium silicate; organic matter-coated pigments such as mica coated with N-acyl aspartic acid; metal-soap-treated pigments; nylon powder, silk powder, urethane powder, teflon powder, and cellulose Organic powders such as powders, silicone powders, gold-dyed silk powders, polyethylene powders, N-lauroyl lysine, and further, fine titanium oxide, fine iron oxide, fine zinc oxide, alumina-coated fine titanium oxide,
Examples include fine particles of silica-coated fine particles such as titanium oxide, bentonite, smectite, and the like. The titanium mica used in the present invention is titanium mica generally used in conventional cosmetics, and may be produced by a wet process or a gas phase process. In addition, as a surface treatment agent for mica, in addition to titanium oxide, low-order titanium oxide, iron oxide, alumina, silica, zirconia, zinc oxide, cobalt oxide, organic dyes, and dyes that are treated alone or in combination are also used. included. Specifically, materials such as silver pearls and colored pearls can be mentioned. The powder used in the present invention is treated with a metal soap, a treatment with an organic silane, an organic titanium, or an organic aluminum, an amino acid treatment, an oil treatment, an N-acylated lysine treatment, a silicone treatment, or a fluorine compound treatment. Surface treatments such as a fatty acid treatment and a resin treatment may be performed. [0013] solvent used in the present invention are preferably those having high volatility from the ease of drying, the surface tension as water to use solvents other than strong solvents. Specifically, lower alcohols such as ethanol and isopropyl alcohol, cyclic silicones, isoparaffins, acetone, hexane, cyclohexane, toluene, fluorocarbon, N
-Methylpyrrolidone, methylene chloride and the like,
There is no problem as long as it is a solvent that can be removed by blast heating drying to 150 ° C. or distillation under reduced pressure, and the solvent is not limited thereto. The pulverizer used in the present invention includes a wet media mill. Specific examples include devices such as a ball mill, a sand mill, and a paint conditioner, and devices such as a dyno mill, a diamond fine mill, and micros can also be used. The weakly agglomerated mixed powder of the present invention can be obtained by pulverizing the mixed powder in a solvent using a wet media mill and then removing the solvent, or by mixing the mixed powder in water using a wet media mill. After pulverization, the solvent is replaced by flashing, and the solvent is further removed to obtain a solvent. The compounding amount of the weakly agglomerated mixed powder in the cosmetic of the present invention is preferably from 1 to 99 parts by weight, more preferably from 10 to 95 parts by weight, based on 100 parts by weight of the cosmetic. In the present invention, in the step of pulverizing the mixed powder using a wet media mill, oils conventionally used in cosmetics can be mixed simultaneously. Examples of oils include higher alcohols such as cetyl alcohol, isostearyl alcohol, lauryl alcohol, hexadecyl alcohol, octyldodecanol, fatty acids such as isostearic acid, undecylenic acid and oleic acid, glycerin, sorbitol and ethylene glycol. , Propylene glycol, polyhydric alcohols such as polyethylene glycol, myristyl myristate, hexyl laurate, decyl oleate,
Esters such as isopropyl myristate, hexyldecyl dimethyloctanoate, glyceryl monostearate, diethyl phthalate, ethylene glycol monostearate, liquid paraffin, vaseline, squalane, hydrocarbons such as hydrogenated polybutene, lanolin, reduced lanolin,
Wax such as carnauba wax, mink oil, cocoa butter, coconut oil,
Fats and oils such as palm kernel oil, camellia oil, sesame oil, castor oil, olive oil and the like can be mentioned. Examples of other forms of oils include dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl / polyoxyalkylene co-modified organopolysiloxane, Alkyl-modified organopolysiloxane, terminal-modified organopolysiloxane, fluorine-modified organopolysiloxane, amodimethicone, amino-modified organopolysiloxane, silicone gel, acrylic silicone, trimethylsiloxysilicic acid, silicone compounds such as silicone RTV rubber, perfluoropolyether, Fluorine compounds such as pitch fluoride, fluorocarbon, and fluoroalcohol are exemplified. Further, the oil agent also includes an organic ultraviolet absorber and a fragrance. The cosmetics of the present invention include, in addition to the weakly agglomerated mixed powder, powders, oils, surfactants, ultraviolet absorbers, tackifiers, bactericides, preservatives, oxidizers, which have been conventionally used in cosmetics. An inhibitor, a physiologically active ingredient, a fragrance, a dye, and the like can be simultaneously added. Examples of the cosmetic of the present invention include eye shadow, eye liner, mascara, teak color, foundation, lipstick and the like. The present invention will be described in detail below with reference to examples and comparative examples. The evaluation methods of the examples and the comparative examples used in the present invention are as follows. Sensory Evaluation Ten female panelists aged 20 to 40 years old were allowed to use the cosmetics prepared in Examples and Comparative Examples, and the number of persons who answered that they had excellent color development and texture was used as an index for sensory evaluation. Therefore, the larger the number, the more excellent the color development and the feeling. Product Color Evaluation 1 g each of the cosmetics prepared in the Examples and Comparative Examples were applied to high quality paper.
The cosmetics were crushed using another piece of high-quality paper. Then, the color condition of the cosmetic was visually evaluated. Example 1 (Eye shadow) The eye shadow was prepared according to the formulation shown in Table 1. [Table 1] (Production method) After the respective components were mixed in cyclohexane, wet pulverization was performed using a paint conditioner. Glass beads were used as a grinding medium. After cyclohexane was distilled off from the resulting dispersion under heating and reduced pressure, the resulting powder was roughly pulverized with a mixer and pressed on a metal plate to obtain a brown eye shadow. Comparative Example 1 (Eye Shadow) Each component of Example 1 was mixed with a mixer and pressed on a metal plate to obtain a brown eye shadow. Table 2 shows the results of the sensory evaluation for Examples and Comparative Examples. [Table 2] From the results shown in Table 2, it was found that the examples were superior in color development and feel as compared with the comparative examples. Also,
From the comments of the panelists, it was found that the example of the present invention had improved stretchability and softness as compared with the comparative example. Table 3 shows the results of the above product color evaluations for Examples and Comparative Examples. [Table 3] From the results shown in Table 3, it can be seen that, as compared with the comparative example, the examples are uniformly mixed, resulting in darker colors and further improved saturation. From the above, it is clear that the present invention provides a cosmetic which is excellent in color development and feel by using a weakly agglomerated mixed powder.

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Claims (1)

(57) [Claims 1] One or more pigments selected from titanium oxide, iron oxide, carbon black, ultramarine and navy blue, and powder containing mica titanium are simultaneously mixed with a powder other than water. A cosmetic containing a weakly agglomerated mixed powder obtained by pulverizing in a solvent (excluding the powder surface coating solution) using a wet medium mill and then distilling off the solvent.