JP2008247844A - Stick-shaped makeup cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stick-shaped makeup cosmetic with no hardness decline even in the coexistence of a polar oil component or polar wax having ultraviolet radiation-shielding function, high in stability, and also good in usability, and developing clear and drabless color as well. <P>SOLUTION: The stick-shaped makeup cosmetic is prepared by compounding together (a) 0.1-20 mass% of spherical resin powder with a melting point of 200°C or higher, especially, spherical resin powder containing amido groups, amino groups or urethane groups in the resin composition, (b) 0.5-80 mass% of a polar oil component, (c) 0.1-20 mass% of a polar oil component solid in the range from room temperature to 50°C, and preferably (d) 0.001-5 mass%, based on the spherical resin powder, of a fluorescent dye. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stick makeup cosmetic having excellent stability, and more particularly to a stick makeup cosmetic having excellent stability that is optimal for point makeup cosmetics such as lipstick, eye shadow, and mascara.

In makeup cosmetics, particularly in sticky makeup cosmetics such as lipsticks, polar oils, particularly polar oils having a cinnamic acid skeleton typified by octylmethoxycinnamate may be blended.
In addition, makeup cosmetics are known to improve usability and improve dye coloration by blending spherical resin powders.

  For example, as a stick makeup cosmetic containing a resin powder, Patent Document 1 describes a skin cleanser containing a nylon powder colored with a dye. Patent Document 2 describes a cosmetic comprising a phosphor and a spherical powder. Patent Document 3 describes cosmetics using polyamide resin powder as a skin irritant. Patent Document 4 describes cosmetics containing polyurethane as a filler.

JP-A-5-320041 JP 2001-172120 A JP 2002-322019 A JP 2005-336189 A

  However, when trying to blend these resin powders into stick makeup cosmetics, cosmetics manufactured at room temperature can be blended as they are, but in cosmetics where a melting process in which wax is blended is essential, Non-crosslinked polymethyl methacrylate and nylon 12 powder cause a drop in melting point in a prescription system containing a large amount of polar oils and polar waxes that have an ultraviolet protection effect, and even in a normal heating process of over 100 ° C. It has been observed that the powder is dissolved and re-agglomerated, resulting in a significant decrease in the usability during application of the product and a decrease in hardness after production.

  In this way, when the spherical resin powder is blended, if the melting point of the spherical resin powder is low, the resin powder dissolves due to the blending of the polar oil, causing a decrease in hardness after production, or a resin once dissolved There was a tendency for the powder to re-agglomerate to form large lumps and impair usability.

  An object of the present invention is to provide a stick makeup cosmetic that is excellent in stability even in the presence of a polar oil or a polar wax having an ultraviolet protection function.

  As a result of intensive studies from the above viewpoint, the present inventors have produced a cosmetic by blending a specific resin powder into the system, whereby polar oils and polar waxes having an ultraviolet protection function coexist. The present inventors have found that a stick-like makeup cosmetic that is excellent in stability and that has no decrease in hardness even in the state has been completed.

The present invention is a stick makeup cosmetic comprising the following (a) to (c):
(A) Spherical resin powder having a melting point of 200 ° C. or higher 0.1 to 20% by mass
(B) 0.5 to 80% by mass of polar oil
(C) 0.1 to 20% by mass of a solid oil having a polarity that is solid in a range from room temperature to 50 ° C.

  In the present invention, the (a) spherical resin powder preferably contains an amide group, amino group, or urethane group in the resin composition, and among them, the (a) spherical resin powder has an average particle size of 0.1. It is preferable that it is 1 type (s) or 2 or more types chosen from the group which consists of -20 micrometer nylon 6 powder, urethane powder, amino group introduction | transduction polymethylmethacrylate powder, and amino group introduction | transduction polyimide powder.

The stick-shaped makeup cosmetic of the present invention has good usability such as spreading and slipping feeling at the time of application, has an ultraviolet protection effect, has good high-temperature stability of the base material, and does not have a decrease in hardness after production. It is. In addition, the powder can be produced stably without agglomeration of the powder even during the heat production process.
In addition to the above effects, when a spherical resin powder containing an amide group, an amino group, or a urethane group in the resin composition is used, a vivid and dull colored makeup stick-like cosmetic is provided. Can be provided.

The best mode of the present invention will be described below.
(Spherical resin powder)
The spherical resin powder (a) having a melting point of 200 ° C. or higher used in the stick makeup cosmetic of the present invention is generally obtained by a known method such as a suspension polymerization method or an emulsion polymerization method. In this case, it is preferable to raise the melting point of the spherical resin powder by crosslinking using a heat-resistant material or a crosslinking agent. If the melting point is not higher than 200 ° C, the combination of polar wax essential for solid cosmetics and polar oils with high UV protection effects will reduce the softening point of the product, and spherical resin powder will also be used when the wax is dissolved in the manufacturing process. Some of them are dissolved, and the good usability due to the spherical shape is lost, or a large particle size that greatly impairs the usability due to reaggregation is formed. Here, the melting point is determined by measuring a change in calorie using a differential scanning calorimeter (for example, DSC8230 manufactured by Rigaku Corporation), and the peak temperature is defined as the melting point. When the resin powder is not spherical, a stick-shaped makeup cosmetic that is satisfactory in terms of usability (slidability) cannot be obtained.

  Moreover, in this invention, it is preferable to use what uses the raw material which has an amide bond site | part, an amino group site | part, or a urethane bond site | part in the resin structure. Preferred are nylon 6 powder (melting point 210 ° C. or higher), urethane resin powder (melting point 300 ° C. or higher), amino group-introduced polymethyl methacrylate powder (melting point near 250 ° C.), amino group-introduced polyimide powder (melting point 300 ° C. or higher). . Thereby, the coloring of dyes, particularly dyes having a fluorescein skeleton, becomes very good, and an attractive appearance as a makeup cosmetic can be imparted.

  Specifically, the nylon 6 powder is a porous spherical nylon powder TR-1 manufactured by Toray Industries, Inc. (porous sphere, particle diameter of about 13 μm; melting point of about 210 ° C.), and the urethane resin powder is a plastic powder manufactured by Toyo Pigment. D-400 (true spherical shape, average particle size 12 μm, melting point 300 ° C. or higher), Daiichi Seika's dimic beads UCN-5070D-NS (true spherical shape, particle size 7 μm, melting point 300 ° C. or higher), UCN-5150D-NS ( In addition, a cross-linked polymethylmethacrylate powder techpolymer XC-J022U (true sphere, particle size) having 10% amino groups introduced by Sekisui Plastics Co., Ltd. is available. About 2 μm, melting point: about 250 ° C.) SSD-2 (spherical, particle size: about 0.3 μm), an amino group-introduced polyimide group manufactured by Sumitomo Bakelite Co. m, melting point of about 300 ° C. or higher).

  The average particle diameter of the spherical resin powder is 0.1 to 20 μm, preferably 3 to 14 μm. When the particle diameter is less than 0.1 μm, the finer particles are more effective than the spherical usability, and good usability cannot be obtained. On the other hand, when the particle diameter exceeds 20 μm, a particle feeling like a scrub can be felt, and the good spreadability and slipperiness during coating are also impaired.

  The blending amount of the spherical resin powder into the cosmetic is 0.1 to 20% by mass, preferably 0.5 to 10% by mass with respect to the total amount of the cosmetic. If the blending amount is less than 0.1% by mass, the effect cannot be obtained, and if the blending amount exceeds 20% by mass, the proportion of the powder amount in the composition becomes too large, and the usability as a cosmetic is increased. It becomes heavier or loses its luster, making it less attractive as a makeup cosmetic.

(Polar oil)
As the (b) polar oil used in the present invention, those commonly used for cosmetics can be used. Among them, it is desirable to use a cinnamic acid derivative having an ultraviolet protective effect, and particularly having a protective effect regardless of the ultraviolet A region or B region. For example, diparamethoxycinnamate mono-2-ethylhexanoate glyceryl, 2,5-diisopropylmethylcinnamate, trimethoxycinnamate methylbis (trimethylsiloxy) silylisopentyl, pyrcinnamic acid ester mixture, paramethoxycinnamate Examples include 2-ethylhexyl cinnamate.

  The blending amount of the polar oil in the cosmetic is 0.5 to 80% by mass, preferably 1.0 to 50% by mass with respect to the total amount of the cosmetic. Furthermore, among them, it is desirable that 0.5 to 30% by mass of the polar oil component having an ultraviolet protection effect is blended. If the blending amount is less than 0.5% by mass, sufficient UV protection effect cannot be obtained. If the blending amount exceeds 80% by mass, the usability becomes sticky or other glossy oil components can be blended sufficiently. It becomes impossible, and usability and functionality become inferior.

(Solid oil with polarity that is solid in the range from room temperature to 50 ° C)
(C) The solid oil component with polarity that is solid in the range from room temperature to 50 ° C. (hereinafter referred to as polar solid oil component) used in the present invention includes an ester composed of a fatty acid and an alcohol in the structure. Pointing. Of these, candelilla wax and carnauba wax are preferable because of their good stability and high melting point.

  The blending amount of the polar solid oil in the cosmetic is 0.1 to 20% by mass, preferably 0.5 to 10% by mass with respect to the total amount of the cosmetic. When the blending amount is less than 0.1% by mass, sufficient solubility with respect to the polar oil cannot be obtained, and uniform mixing cannot be performed. On the other hand, if it exceeds 20% by mass, it cannot be dissolved in the nonpolar oil, or the molded product is too hard to be applied at the time of application.

  The product form of the stick makeup cosmetic of the present invention is not particularly limited as long as it is a makeup cosmetic. For example, stick makeup cosmetics such as foundation, eye shadow, lipstick, gloss, mascara and eyeliner are included.

In the present invention, makeup cosmetics that require particularly vivid color tone are preferred. In that case, good color development can be obtained by using a spherical resin powder containing an amide group, amino group, or urethane group as described above in the resin composition, and (d) a fluorescent dye. When a dye having a fluorescein skeleton, for example, tetrachlorotetrabromofluorescein, tetrabromofluorescein, dibromofluorescein, or the like, is blended, the amide bond site and urethane bond site contained in the resin structure cause an interaction, which is particularly preferable. Color development is obtained.
By adopting such a configuration, it is possible to produce a vivid color without losing stability, in particular, a vivid and dull fluorescent color development that cannot be achieved with existing color materials, and a cosmetic with an excellent UV protection effect. Can be provided.

  In this invention, when mix | blending dye, it is preferable to mix | blend 0.001-5 mass% by mass ratio with respect to spherical resin powder, Preferably it is 0.01-1 mass%. If it is less than 0.001% by mass, sufficient color development cannot be obtained, and if it exceeds 5% by mass, there will be many dyes that do not interact with the resin powder. The amount of wear increases, making it difficult to remove the dye after use.

  The stick-shaped makeup cosmetic of the present invention includes solids, semi-solids, liquid oils other than the above, water, water-soluble polymers, polyhydric alcohols, solvents, interfaces as necessary to the extent that the effects of the present invention are not impaired. Activators, powders, resins, organically modified clay minerals, polymers, inorganic UV absorbers, moisturizers, antiseptics, bactericides, fragrances, antioxidants, skin beautifying ingredients, physiologically active ingredient powders, pigments, dyes, Raw materials generally blended in cosmetics such as lame, chemicals, moisturizers, matting agents, fillers, surfactants, metal soaps, etc. are appropriately blended and manufactured according to the intended cosmetics. Can do.

  Next, the present invention will be described more specifically with reference to examples. However, this does not limit the technical scope of the present invention. Prior to the examples, the evaluation methods for the cosmetics carried out in this example will be described.

[Agglomeration state during production]
In order to evaluate the state of aggregation during production, the state immediately after production was observed. As a method, lipstick raw materials were blended, heated to 120 ° C., and kept in a dissolved state for 30 minutes. Thereafter, the bulk was passed through a sieve having a mesh size of # 60 (mesh diameter: 250 μm), and it was observed whether or not the residue remained on the mesh. The results were evaluated according to the following evaluation criteria.

<Evaluation criteria>
○: No puffs occurred △: Slight pews are observed ×: Obviously many puffs are observed

[Usability during application]
Each manufactured cosmetic was used by a special panel of cosmetics (10 persons), and the slipperiness at the time of application was evaluated by sensory evaluation.
<Evaluation criteria>
◎: 8 or more people judged that the slipperiness was good ○: 5-7 people judged that the slipperiness was good △: 6-7 people judged that the slipperiness was bad ×: 8 or more people judged that the slipperiness was bad

[Color development (saturation)]
In order to evaluate the vividness of the product containing the dye, the saturation was measured with an integrating sphere type spectrocolorimeter CM2600d (manufactured by Konica Minolta). As a measuring method, among lipstick raw materials, only a dye was added and dissolved as a pigment, and then poured into a medium dish container and solidified as a sample. The color was measured and the numerical value was evaluated according to the following evaluation criteria.

<Evaluation criteria>
A: Munsell saturation exceeds 12.
○: Munsell saturation is 7 or more and less than 12.
Δ: Munsell saturation is 2 or more and less than 7.
X: Munsell saturation is less than 2.

Examples 1-9, Comparative Examples 1-5 (stick lipstick)
(Manufacturing method)
The raw materials were mixed and heated to 120 ° C., and uniformly dispersed by stirring and mixing, and then poured into a stick mold and cooled to form. Further, the evaluation was based on the evaluation methods already described for the aggregation state at the time of production, usability at the time of coating, and color development.

* 1: Dymic beads UCN-5070D manufactured by Dainichi Seika Co., Ltd. (true sphere, particle diameter 7 μm; melting point 300 ° C. or higher)
* 2: Nylon powder TR-1 manufactured by Toray Industries, Inc. (porous sphere, particle size of about 13 μm; melting point of about 210 ° C.)

* 3) Dymic beads UCN-5070D manufactured by Dainichi Seika Co., Ltd. (true sphere, particle diameter 7 μm; melting point 300 ° C. or higher)
* 4) Orgasol 1002 DNATCOS manufactured by Arkema (indefinite shape, particle size 20 μm; melting point about 210 ° C.)
* 5) Matsumoto Yushi M100 (true sphere, particle size 8μm; melting point approx. 140 ° C)
* 6) Nylon SP500 manufactured by Toray Industries, Inc. (spherical, particle size 5 μm; melting point about 170 ° C.)

  As shown in Tables 1 to 3, the lipsticks obtained in Examples 1 to 9 are superior to Comparative Examples 1 to 5 in aggregation state during production, usability during application, color development, and all. On the other hand, Comparative Examples 1 to 5 showed results in which any one or more evaluation items could not be satisfied because the usability decreased due to the aggregation of the resin or the dye did not develop color.

Other examples of the cosmetic of the present invention will be given below.
Example 10 (emulsified lipstick)
2-Ethylhexyl paramethoxycinnamate 4% by mass
Candelilla Row 1
Nylon powder (Nylon powder TR-1 manufactured by Toray Industries, Inc.) 3
Dye (tetrachlorotetrabromofluorescein) 0.05
Microcrystalline wax 3
Ceresin 9
Polyoxyethylene / methylpolysiloxane copolymer 0.5
Methylphenylpolysiloxane Residual glycerin 0.5
Xylit 0.1
Liquid lanolin 2
Squalane 1
Glyceryl triisostearate 1
Macadamia nut oil fatty acid cholesteryl 2
Tri-2-ethylhexane sanglyceryl 15
Tri (hydrogenated rosin / isostearic acid) glyceryl 10
Silicon resin coated titanium oxide 1
Carmine coated mica titanium 2
Mica titanium 5
Citric acid 0.1
Potassium hydroxide 0.05
Hydroxypropyl-B-cyclodextrin 0.3
Pantothenyl ethyl ether 0.05
Arginine hydrochloride 0.01
DL-α-tocopherol acetate 0.05
Sodium hyaluronate 0.05
Octocrylene (DSM) 6
Spherical cellulose powder 2
Heavy liquid isoparaffin 20
Purified water 0.5
Perfume proper amount 10

(Manufacturing method and results)
Each raw material was mixed and heated to 110 ° C., and then uniformly stirred, poured into a mold and cooled. The lipstick obtained as a result was excellent in finish upon application, and a makeup effect excellent in aggregation state during manufacture, usability during application, and color development was obtained.

Example 11 (stick eye shadow)
Carnauba wax 1.5% by mass
Nylon powder (Nylon powder TR-1 manufactured by Toray Industries, Inc.) 5
2-Ethylhexyl paramethoxycinnamate 5
Dye (Tetrabromofluorescein) 1
Paraffin 11
Glyceryl tri-2-ethylhexanoate Residual sorbitan sesquioleate 2
Titanium oxide 3
Mica titanium 15
Mica 20
Ultramarine 2
Black iron oxide 1
Perfume

(Manufacturing method and results)
Each raw material was mixed and heated to 110 ° C., and then uniformly stirred, poured into a mold and cooled. The eye shadow obtained as a result was excellent in the finish at the time of coating, and a makeup effect excellent in the aggregation state at the time of manufacture, the usability at the time of coating and the color development was obtained.

Example 12 (stick foundation)
Carnauba wax 1.5% by mass
Nylon powder (Nylon powder TR-1 manufactured by Toray Industries, Inc.) 5
Methylbis (trimethylsiloxy) silylisopentyl trimethoxycinnamate 1
2-methoxyhexyl paramethoxycinnamate 3
Dye (Tetrabromofluorescein) 1
Paraffin wax 11
Dimethylpolysiloxane 5
Isostearic acid 0.5
Diisostearyl malate 3
Tri-2-ethylhexanesanglyseryl 1
Sorbitan sesquiisostearate 1
Spherical PMMA-coated mica 6
Fine zinc oxide 0.5
Fine particle titanium oxide 2
Synthetic phlogopite 2
Metal soap treated talc 8
Spherical silica 5
Vitamin E acetate 0.1
δ Tocopherol 0.1
Ethylparaben appropriate amount ubinal A plus (BASF) 8
Spherical polyalkyl acrylate powder 6
Methyl hydrogen polysiloxane-coated talc Residual methyl hydrogen polysiloxane-coated sericite 20
Methyl hydrogen polysiloxane-coated titanium oxide 10
Methyl hydrogen polysiloxane coated pigment (colorant) 5

(Manufacturing method and results)
The powder part and the oil phase part were uniformly dispersed, and then both were mixed and cast into a metal pan. The foundation obtained here was excellent in the finish at the time of application, and a makeup effect excellent in the aggregation state at the time of production, usability at the time of application, and color development was obtained.

Claims (7)

A stick makeup cosmetic comprising the following (a) to (c):
(A) Spherical resin powder having a melting point of 200 ° C. or higher 0.1 to 20% by mass
(B) 0.5 to 80% by mass of polar oil
(C) 0.1 to 20% by mass of a solid oil having a polarity that is solid in a range from room temperature to 50 ° C.   2. The stick makeup cosmetic according to claim 1, wherein (a) the spherical resin powder contains an amide group, an amino group, or a urethane group in the resin composition.   (A) The spherical resin powder is one or more selected from the group consisting of nylon 6 powder having an average particle size of 0.1 to 20 μm, urethane powder, amino group-introduced polymethyl methacrylate powder, and amino group-introduced polyimide powder. The stick makeup cosmetic according to claim 2.   (B) The sticky makeup cosmetic according to claim 1, wherein the polar oil is a cinnamic acid derivative having an ultraviolet protection effect.   (C) The stick-shaped makeup cosmetic according to claim 1, wherein the solid oil having a polarity in the range from room temperature to 50 ° C. is one or two kinds of waxes selected from the group consisting of candelilla wax and carnauba wax.   (D) 0.001-5 mass% of dyes which fluoresce are mix | blended with respect to (a) spherical resin powder, The stick-shaped makeup cosmetics of Claim 1 characterized by the above-mentioned.   (D) The sticky makeup cosmetic according to claim 6, wherein the fluorescent dye is a dye having a fluorescein skeleton.