JP2001233734A - Makeup cosmetics - Google Patents

Abstract

(57) [Summary] [Problem] To provide an oil-based cosmetic excellent in cosmetic durability and feel. A makeup cosmetic comprising an agar-coated pigment and a silicone oil having a viscosity of 100 centistokes or less at normal temperature and normal pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a pigment coated with agar, which is a hydrophilic polymer of natural origin, and a silicone oil having a specific viscosity, which is used to reduce the water absorption and tackiness of the agar-treated pigment. The present invention relates to a makeup cosmetic that is appropriately controlled, has a long lasting feel, and is excellent in feel.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Application Laid-Open No. 5-178723,
As disclosed in JP-A-7-17828 and JP-A-6-56625, it is known to mix agar in a preparation and to mix an inorganic pigment and agar in a product in combination.

[0003]

However, it has not been known about the use of agar as a coating material for a pigment and the characteristics obtained by blending a pigment coated with agar and a silicone oil having a specific viscosity. On the other hand, various compositions have been proposed as makeup cosmetics such as lipstick, foundation, eyeshadow, etc., but few of them have excellent makeup durability and feel. That is, an object of the present invention is to provide a makeup cosmetic which is excellent in the durability and feel of makeup.

[0004]

Means for Solving the Problems The present inventors have developed an agar-coated pigment and studied the characteristics of the pigment for cosmetics. As a result, the agar-coated pigment gradually absorbs moisture such as skin and breath. It has been found that the persistence of makeup is improved by the mechanism of developing adhesiveness. However, in the technology using only agar-treated pigment, under high humidity such as exhalation, the viscosity suddenly rises and sometimes causes distortion, so it has a function to control moisture absorption and desorption, and The aim of the present invention was to find a component which is excellent in compatibility with the agar-treated pigment, and found that these problems can be solved by combining with a silicone oil having a specific viscosity, thereby completing the present invention.

[0005] That is, the present invention is a makeup cosmetic comprising an agar-coated pigment and a silicone oil having a viscosity of 100 centistokes or less at normal temperature and normal pressure.

[0006] The present invention further provides the above makeup cosmetic, wherein the silicone oil is selected from dimethylpolysiloxane and methylphenylpolysiloxane.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The agar used in the present invention is Tengusa,
It can be obtained from seaweeds (red algae) such as Ogonori. After washing the raw material seaweed, the agar is extracted (hot water), filtered,
It is manufactured through processes such as coagulation, dehydration, drying, pulverization, and homogenization. As the jelly strength of agar used in the present invention,
250-400 g / cm ² natural agar or 250 g / cm ²
Low-strength agar of less than ² cm ^2, or powder agar or flake agar of 400 g / cm ² or more can be used. The jelly strength is determined by the Japan Agar Fisheries Association and is based on Japanese Agriculture and Forestry Standards (Japanese Agricultural and Forestry Standards on Agar;
The gel was prepared by preparing a 1.5% by mass solution of agar and leaving it to solidify at 20 ° C for 15 hours.
measure the maximum load (g) to withstand 20 seconds per m ² is to jelly strength.

As a method for coating the agar with the pigment used in the present invention, for example, the following method can be mentioned. First, agar is heated and dissolved in (purified) water before use. Examples of the method of heat dissolution include a method using hot water, a method using a microwave oven, and the like. The heating temperature is preferably at least 60 ° C, more preferably at least 80 ° C. Also,
Applying pressure at this time is preferable because the agar gel is more easily and uniformly spread. The agar solution thus obtained is
After being mixed with the pigment, water is removed by a method such as freeze-drying, spray-drying, heat-drying, and heat-drying under reduced pressure. If necessary, pulverization or sterilization is performed to obtain the target agar-coated pigment. As the drying method, a spray drying method and a heat drying method are particularly preferable. When heating and drying, it is preferable to dry at 80 ° C. or lower, preferably 65 ° C. or lower by blowing air, since the deterioration of agar hardly occurs.

The amount of the agar to be used in the present invention is 1 to 15 parts by mass per 100 parts by mass of the pigment.
It is preferably 3 parts by mass, more preferably 3 parts by mass. Within this range, the function of agar and the feel of the product can be compatible.

Examples of pigments coated with agar include red No. 104 aluminum lake, red No. 102 aluminum lake, red No. 226, red No. 201, red No. 202, blue No. 1 aluminum lake, and yellow No. 4 aluminum lake. Rake, Yellow No. 5 Aluminum Lake, Yellow 2
No. 03 barium lake and other dyes and lake dyes, nylon powder, silk powder, polyurethane powder, Teflon (trademark) powder, silicone powder,
Polymethyl methacrylate powder, cellulose powder, silicone elastomer spherical powder, polymers such as polyethylene powder, yellow iron oxide, red iron oxide, black iron oxide, chromium oxide, carbon black, colored pigments such as ultramarine blue, navy blue, zinc oxide, oxidation Titanium, white pigments such as cerium oxide, talc, mica, sericite, kaolin, extender pigments such as barium sulfate, pearl pigments such as mica titanium, barium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, etc. Inorganic powders such as metal salts, silica, spherical silica, and alumina, bentonite, smectite, boron nitride, fine titanium oxide, fine zinc oxide, and the like can be given. The shape of these powders (spherical, rod-like, needle-like, plate-like, irregular, flake-like, spindle-like, etc.) is not particularly limited. The size of the powder is preferably in the range of 5 nm to 100 μm, more preferably 10 nm.
Those within the range of に 入 る 25 μm are preferred.

The pigment may be coated alone or a mixture of pigments. The pigments may be previously subjected to various known treatments such as inorganic oxide treatment, amino acid treatment, metal soap treatment, silicone treatment, fluorine compound treatment, apatite treatment, resin treatment, polyacrylic acid treatment, plasma treatment, and mechanochemical treatment. It does not matter whether or not it is done. When a water-repellent pigment is used, it is preferable to use a heated agar solution and perform the mixing treatment while wetting the pigment surface with the effect of heat.

In the agar-treated pigment used in the present invention,
It is possible to treat with agar in combination with various physiologically active components as described later, components such as thickeners and oils. However, the components that deteriorate in a short time at a temperature lower than 60 ° C. are not preferable because the components are highly likely to be deteriorated in the treatment step. When these components are blended, it is preferable to treat them by blending 0.001 to 15 parts by mass with respect to 100 parts by mass of the pigment.

In the makeup cosmetic of the present invention, the above-mentioned agar-coated pigment is preferably added in an amount of 0.5 to 60% by mass, more preferably 1 to 25% by mass, based on the total amount of the oily cosmetic. preferable. Within this range, it is easy to obtain the effect of keeping the makeup lasting due to the effect of agar.

In the makeup cosmetic of the present invention, a silicone oil having a viscosity at room temperature and normal pressure of 100 centistokes (hereinafter abbreviated as cs) is blended with the agar-coated pigment. When the viscosity exceeds 100 cs, it becomes difficult to control the function and control the feel of the agar-treated pigment. Examples of the silicone oil include silicone compounds such as dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, alkyl-modified organopolysiloxane, terminal-modified organopolysiloxane, amodimethicone, amino-modified organopolysiloxane, and volatile silicone. However, it is particularly preferable to use dimethylpolysiloxane and methylphenylpolysiloxane which are excellent in versatility.

The amount of the silicone oil in the specific viscosity range in the makeup cosmetic of the present invention is preferably in the range of 0.1 to 70% by mass based on the total amount of the makeup cosmetic. Within this range, it is possible to control the function and control the feel of the agar-treated pigment.

The oil agent to be incorporated into the makeup cosmetic of the present invention is an oil agent other than the above-mentioned silicone oil, and includes volatile and non-volatile oil agents usually used in cosmetics. It may be solid. Examples of oils include higher alcohols such as cetyl alcohol, isostearyl alcohol, lauryl alcohol, hexadecyl alcohol, octyl dodecanol, fatty acids such as isostearic acid, undecylenic acid and oleic acid, myristyl myristate, hexyl laurate, olein Decyl acid, isopropyl myristate,
Hexyldecyl dimethyloctanoate, glyceryl monostearate, glyceryl tri (caprylate / caprate), diethyl phthalate, ethylene glycol monostearate, octyl oxystearate, esters such as dextrin fatty acid ester, liquid paraffin, petrolatum, squalane, Hydrocarbons such as microcrystalline wax and paraffin wax, waxes such as lanolin, reduced lanolin, ceresin and carnauba wax, oils such as mink oil, cocoa butter, coconut oil, palm kernel oil, camellia oil, sesame oil, castor oil, olive oil, etc. No.

Further, examples of the oil agent in another form include fluorine compounds such as perfluoropolyether, pitch fluoride, fluorocarbon, and fluoroalcohol. The amount of the oil agent is appropriately selected depending on the type and formulation of the makeup cosmetic.

The makeup cosmetic of the present invention contains, in addition to the above components, physiologically active ingredients usually used in cosmetics.
Powder (pigment, pigment, resin) without agar coating,
Fluorine compounds, resins, surfactants, adhesives, preservatives, fragrances, UV protection agents (including organic UV absorbers and inorganic UV scattering agents without agar coating. Compatible with both UV-A and B Components such as salts, solvents, antioxidants, insect repellents and the like can be appropriately compounded.

Examples of the physiologically active component include substances that give a certain physiological activity to the skin when applied to the skin. For example, whitening ingredients, anti-inflammatory agents, anti-aging agents, UV protection agents, slimming agents, tightening agents, antioxidants, humectants, blood circulation promoters, antibacterial agents, bactericides, drying agents, cooling agents, warming agents ,
Vitamins, amino acids, wound healing promoters, stimulants,
An analgesic, a cell activator, an enzyme component and the like can be mentioned. Among them, natural plant extract components, seaweed extract components, and crude drug components are particularly preferable. In the present invention, it is preferable to mix one or more of these physiologically active components.

Examples of the powder include the above-mentioned pigments and their surface-treated products other than agar. Of these powders, silicone elastomer spherical powder, polyethylene powder, polypropylene powder, Teflon (trademark) powder, silicone rubber, polyurethane powder, spherical polymethylsilsesquioxane, spherical silica, and other elastomers and spherical powders are used. Is preferred because of the improvement in

Examples of the tackifier and resin include sodium polyacrylate, cellulose ether, calcium alginate, carboxyvinyl polymer, ethylene / acrylic acid copolymer, vinylpyrrolidone-based polymer, vinyl alcohol / vinylpyrrolidone copolymer, nitrogen Cationic polymers such as substituted acrylamide polymers, polyacrylamide, and cationized guar gum, dimethylacrylammonium polymers, acrylic acid methacrylate acrylic copolymer, POE / POP copolymer, polyvinyl alcohol, pullulan, gelatin, tamarind seed polysaccharide , Xanthan gum, carrageenan, high methoxyl pectin,
Low methoxyl pectin, guar gum, gum arabic, crystalline cellulose, arabinogalactan, karaya gum, tragacanth gum, alginic acid, albumin, casein, curdlan, gellan gum, dextran, cellulose,
Polyethyleneimine, high polymerized polyethylene glycol,
Examples include a cationized silicone polymer and a synthetic latex.

Examples of the makeup cosmetics of the present invention include makeup cosmetics such as lipstick, lip balm, foundation, eyeshadow, eyeliner, eyebrow and the like. Examples of the form of the makeup cosmetic include liquid, paste, gel, solid, and powder. In the present invention, non-aqueous makeup cosmetics are particularly preferred since the effects of the present invention can be remarkably obtained.

[0023]

The present invention will be described in detail below with reference to examples and comparative examples. In addition, evaluation methods for various properties of the cosmetics obtained in Examples and Comparative Examples are shown below.

[Evaluation of Skin Utility] Twenty specialized panelists were prepared for each evaluation item (however, panelists may be duplicated depending on the item). The evaluation was performed according to the following classification. In addition, the touch refers to smoothness.

Evaluation of the number of people who answered "good" out of 20 people ----------------------------------- ----------------- 15 or more ◎ 10 to 14 ○ 5 to 9 △ 0 to 4 ×

Production of agar-coated pigments Example 1 Spherical silica-treated titanium oxide (average primary particle size 0.3 μm)
m) A slurry composed of 95 parts by mass, 5 parts by mass of agar having a jelly strength of 500 g / cm ² , and 900 parts by mass of purified water was prepared at a temperature of 85 ° C. Then, the slurry was spray-dried with a spray dryer to obtain an agar-treated titanium oxide having an average secondary particle diameter of 9 μm.

Production Example 2 of Agar-Coated Pigment A slurry comprising 93 parts by mass of mica titanium (average primary particle size: 13 μm), 7 parts by mass of agar having a jelly strength of 400 g / cm ² , and 800 parts by mass of purified water was heated to a temperature of 85%. Prepared at ℃. Next, this slurry was spray-dried with a spray dryer to obtain agar-treated mica titanium having an average secondary particle diameter of 16 μm.

Production of Agar-Coated Pigment Example 3 A slurry of 97 parts by mass of Red No. 201 and 60 parts by mass of purified water was prepared. On the other hand, 3 parts by mass of agar having a jelly strength of 200 g / cm ² were dissolved in 70 parts by mass of purified water at 80 ° C., and the slurry was added thereto and mixed vigorously under heating. The parts by mass were added and further mixed. After transferring the obtained mixture to a stainless steel vat,
It dried with the blast air dryer (drying temperature 60 degreeC). The obtained powder was pulverized with an atomizer and treated with agar-treated red 20.
No. 1 was obtained.

Production of Agar-Coated Pigment Example 4 A slurry of 97 parts by mass of Red No. 202 and 120 parts by mass of purified water was prepared. On the other hand, 3 parts by mass of agar having a jelly strength of 400 g / cm ² were dissolved in 70 parts by mass of purified water at 80 ° C., and the slurry was added thereto and mixed vigorously under heating. The parts by mass were added and further mixed. After transferring the obtained mixture to a stainless steel vat,
It dried with the blast air dryer (drying temperature 60 degreeC). The obtained powder was pulverized with an atomizer and treated with agar-treated red 20.
No. 2 was obtained.

Production Example 5 of Agar-Coated Pigment An agar-treated yellow No. 4 aluminum lake was obtained in the same manner as in Production Example 4 except that Red No. 201 of Production Example 4 was replaced with Yellow No. 4 aluminum lake. Was.

Examples 1 to 4 and Comparative Examples 1 to 5 (lipstick) Lipsticks were prepared according to the formulation shown in Table 1 and the following production method. The unit of the compounding amount is mass%. However, as the agar-treated pigment, those produced in Production Examples 1 to 5 were used. As the silicone-treated pigment, a pigment obtained by coating the same pigment as that used in the above Production Example with dimethylpolysiloxane at the same coating amount as the agar-treated pigment was used. As the untreated pigment, the same pigment as that used in the above production example was used.

[0032]

[Table 1]

(Production method) After dissolving the oily component at 90 ° C., a pigment and the like are added and mixed, further mixed and pulverized using a roller, redissolved and deaerated, and filled in a mold. After cooling, the product was taken out and placed in a container to obtain a product.

From the results shown in Table 1, it can be seen that Examples 1-4 of the present invention have a longer lasting makeup and are more excellent in smoothness when applied to lips and after application than Comparative Examples 1-5. Was. This is expected to exhibit a synergistic effect because the compatibility between the agar containing water and the low viscosity silicone oil covering the agar-treated pigment in the formulation is suitable.

Example 5 (Eye shadow) An eye shadow was manufactured according to the following recipe. As a coloring pigment (agar treatment), a mixture of agar treatment pigments was used.
The mixing ratio of each pigment is 1, 30, 1, 1, 2 parts by mass in the order of Production Examples 1, 2, 3, 4, and 5, respectively.
The unit of the amount is mass%.

Paraffin wax 5 Ceresin 4 Microcrystalline wax 4 Liquid paraffin 31 Methylphenyl polysiloxane (20 cs) 5 Vaseline 5 Sorbitan sesquiolate 1 Mica 10 Color pigment (agar treatment) 35

After the above oil component was overheated and dissolved, the powder component was charged, kneaded using a roller, and then poured into a metal dish and cooled to obtain a product. This product had a smooth feel and was long lasting.

[0038]

As described above, the present invention provides a water-absorbing pigment having a specific viscosity by blending a pigment coated with agar, which is a naturally occurring hydrophilic polymer, and a silicone oil having a specific viscosity. It is clear that a makeup cosmetic which controls the adhesiveness appropriately and has excellent makeup lasting and feel can be obtained.

Continuation of the front page (72) Inventor Yuichiro Egawa 5-3-28 Kotobukicho, Odawara City, Kanagawa Prefecture Inside the Cosmetics Research Laboratories (72) Inventor Hiromitsu Sano 5-3-28 Kotobukicho, Odawara City, Kanagawa Prefecture (72) Inventor Yasuhiro Shigihara Inventor Yasuhiro Shigihara 6-37-14 Tateishi, Katsushika-ku, Tokyo (72) Inventor Yu Shimoyama 13-1, Komagata Shinjuku, Kochigata, Minamiashigara, Kanagawa Prefecture (72) Inventor Nosumasa Sato Odawara, Kanagawa Prefecture 2-1 Iidaoka, F-term F-term (reference) 4C083 AA122 AB242 AB432 AC012 AC022 AC422 AC442 AC792 AC852 AD151 AD152 BB25 CC11 CC13 CC14 DD11 EE06 EE07 FF01

Claims (2)

[Claims] 1. A makeup cosmetic comprising an agar-coated pigment and a silicone oil having a viscosity of 100 centistokes or less at normal temperature and normal pressure. 2. The makeup cosmetic according to claim 1, wherein the silicone oil is selected from dimethylpolysiloxane and methylphenylpolysiloxane.