JP2005314391A - Lip cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare a lip cosmetic excellent in cosmetic film gloss, stereoscopic effect and transparency of the cosmetic film, stability, and the like, smooth in sense of use and having a nonconventional appearance excellent in brilliance. <P>SOLUTION: This lip cosmetic comprises (A) a colored interferential fiber comprising two or more polymer compounds having different refractive indices and (B) a liquid oil having ≥1.45 refractive index. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lip cosmetic having a novel appearance and an excellent cosmetic effect, and more specifically, having an appearance excellent in glitter, gloss of a decorative film, stereoscopic effect and transparency of the decorative film, stability The present invention relates to a lip cosmetic that has excellent properties and a smooth feeling to use.

  Conventionally, for lip cosmetics, for the purpose of imparting various colors and textures to the lips, glitter such as lamellar agent, which is a plate polymer in which high-saturation pigments, mica titanium, or two or more kinds of resins are stacked in layers. Pigments have been used (see, for example, Patent Document 1). In addition, titanium mica has been used to obtain various effects by combining with other powders and oils. For example, for the purpose of making lips wrinkle inconspicuous, a technique of blending iron oxide-coated mica titanium having a specific appearance color and interference color and an oil component having a refractive index of 1.45 to 1.50 (see, for example, Patent Document 2) Also known is a technique (for example, see Patent Document 3) in which a flaky powder having high chroma interference light and a powder having a specific shape and refractive index are used in combination.

  On the other hand, the technique of blending fibers has been studied not only for vaginal cosmetics but also for lip cosmetics. For example, a technique for blending fibers for the purpose of promoting absorption and evaporation of moisture on the lips is known (for example, see Patent Document 4).

  However, since mica titanium is an opaque powder, titanium mica has a drawback in that the transparency of the decorative film is remarkably impaired when the blending amount is increased. Also, some lame preparations have high transparency, and some cosmetic films have excellent transparency, but it is difficult to reduce the particle size, and the feeling of use is remarkable when blended in large amounts. There was a drawback of getting worse.

  Furthermore, even when a fiber in which a pigment such as carbon black or titanium oxide is blended with nylon fiber is used, the effect of imparting a highly saturated decorative film to the eyelids cannot be obtained sufficiently. In addition, natural fibers have a low saturation color derived from the raw materials, and as with nylon fibers, a cosmetic effect could not be sufficiently obtained. For this reason, it can be assumed that a fiber exhibiting interference light is used as a new material in cosmetics. However, it is difficult to provide a sufficient cosmetic effect because it is particularly difficult to see the change in the texture of the appearance. ing.

Japanese Patent Publication No.2-30004 JP 2001-288039 A JP 2002-154928 A JP-T-2002-521420

  Accordingly, there is a need to provide a lip cosmetic that is excellent in decorative film luster, decorative film stereoscopic effect, transparency, stability, etc., has a smooth use feeling, and has an unprecedented glossy appearance. Therefore, the present invention aims to provide such a lip cosmetic.

  As a result of intensive studies to solve the above problems, the present inventors have obtained a lip cosmetic obtained by blending a colored fiber exhibiting interference light and a liquid oil having a specific refractive index. The present inventors have found that the above problems can be solved and have completed the present invention.

That is, the present invention comprises the following components (A) and (B):
(A) Colored interference fiber containing two or more kinds of polymer compounds having different refractive indices (B) A lip cosmetic characterized by containing liquid oil having a refractive index of 1.45 or more.

  The lip cosmetic of the present invention is excellent in the gloss of the decorative film, the three-dimensional effect, transparency, and stability of the decorative film, has a smooth use feeling, and exhibits an appearance with excellent glitter.

  The interference fiber (hereinafter abbreviated as “colored interference fiber”), which is a component (A) and contains two or more kinds of polymer compounds having different refractive indexes, which is used in the lip cosmetic of the present invention, is at least It is a fiber obtained by coloring a composite fiber having a layered cross-sectional structure (laminated cross section) composed of two or more kinds of polymer compounds with a colorant, and this composite fiber has interference colors such as red, yellow, green, blue, It exhibits a purple color. As for the cross-sectional shape, the flat cross-section interference fiber in which the parallel laminated portion is sandwiched by the protective layer is desirable because it easily adheres to the skin or the like as a cosmetic, and more strongly develops color development from one direction. The polymer compound used in the colored interference fiber is not particularly limited as long as it is usually used in cosmetics. Examples thereof include nylon, polyethylene terephthalate, polypropylene, polycarbonate, polymethyl methacrylate, and polyester. . Among these polymer compounds, a combination of polyethylene terephthalate and nylon is preferable because it strongly exhibits interference light and has good fiber process stability, and the effects of the present invention appear more remarkably.

  As a coloring agent used for manufacture of the component (A) of this invention, if normally used for cosmetics, it will not restrict | limit, Any thing can be used. For example, Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Yellow No. 4, Yellow No. 5, Green No. 3, Blue No. 1 as colorants , Blue No. 2, Red No. 201, Red No. 213, Red No. 214, Red No. 215, Red No. 227, Red No. 230 (1), Red No. 230 (2), Red No. 231, Red No. 232, Orange No. 205 Orange No. 207, Yellow No. 203, Green No. 201, Green No. 204, Green No. 205, Blue No. 202, Blue No. 203, Blue No. 205, Brown No. 201, Red No. 401, Red No. 502, Red No. 503, Red 504, red 506, orange 402, yellow 402, yellow 403 (1), yellow 406, yellow 407, green 401, green 402, purple 401, black 401, etc. Tar dye, red 02, Red 218, Red 223, Red 226, Red 228, Orange 201, Yellow 201, Yellow 205, Blue 201, Blue 204, Purple 201, Red 404, Red 405 , Orange 401, Yellow 401, Yellow 404, Yellow 405, Blue 403, Blue 404, etc. Water-insoluble tar dye, gardenia dye, safflower dye, turmeric dye, paprika dye, anato dye, cochineal dye Natural pigments such as acidic pigments, basic pigments, and disperse dyes. Among these, water-soluble tar pigments are most preferable in terms of obtaining colorability, stability, and a remarkable cosmetic effect. Moreover, these colorants can use 1 type (s) or 2 or more types, and can provide a various color tone to a component (A).

  The amount of the colorant used for coloring the interference fibers is not particularly limited and is determined according to the purpose, but is 0.01 to 30% by mass (hereinafter, simply referred to as “%”) of the entire colored interference fibers. Is preferable, and 0.01 to 10% is more preferable. If it is this range, the cosmetic effect of providing a highly saturated cosmetic film to the use site can be sufficiently obtained. Further, if the color of the colorant is similar to the interference color, it is effective because it does not hinder the wavelength necessary for optical interference from reaching the laminated portion. When colored with the color opposite to the interference color, the colorant absorbs the wavelength that exhibits the interference effect, and the color development of the interference fiber may decrease. For this reason, it is preferable to color with a color similar to the color of the interference fiber or a color that is not complementary to the color because the interference light is strongly exhibited and the effects of the present invention appear more remarkably. Here, the similar color means a hue that is adjacent on the 24-color ring table of the P.C.C.S color system. For example, when the interference color is red, reddish purple to orange are similar. Color. Further, when the interference color is yellow, orange to yellow-green is used. When the interference color is green, yellow green to blue is used. When the interference color is purple, blue to purple is used.

  The production method of the component (A) of the present invention is not particularly limited, and a conventional method for obtaining fibers from a polymer compound can be used, and examples of preferred methods include the following methods. That is, a polymer (interference fiber) exhibiting interference light is manufactured by laminating polymer compounds having different refractive indexes according to the methods described in JP-A-7-34324, JP-A-11-1829, and WO98 / 46815. Then, a method of coloring it with a dye according to a conventional method, a method of dispersing a colorant in a polymer compound in advance at the time of fiber production, and directly producing a colored interference fiber using the method, etc. It is done.

  The length and thickness of the fiber of component (A) are not particularly limited, but the length is from the viewpoint of the makeup effect on the lips as the use site, the good feeling of use and the formation of a uniform decorative film. 01-5 mm is preferable, More preferably, it is 0.1-3 mm. The thickness is preferably 0.01 to 20 denier (hereinafter simply referred to as “D”), more preferably 0.1 to 13D. Further, the cross-sectional shape of the component (A) may be a circle or a flat ellipse, but the ellipse is more preferable because of more interference. Furthermore, in order to obtain transparency and stereoscopic effect as a cosmetic effect, the layers composed of the respective polymer compounds are alternately laminated in 5 to 120 layers, preferably 30 to 90 layers, and The thickness of each layer is preferably in the range of 0.02 to 0.3 μm. These fibers can be used alone or in combination of two or more materials, thicknesses, and lengths.

  The colored interference fiber of the component (A) of the present invention can be used as it is in the lip cosmetic of the present invention, but by further surface treatment, the dispersibility in the cosmetic is improved, the cosmetic effect and Since the sustainability can be further improved, it is more preferable to use a surface-treated product.

  The surface treatment agent for the colored interference fiber is not particularly limited as long as it is usually used in cosmetics, and any one can be used. For example, general oil agents, silicone oils, fluorine compounds, surfactants, silicas and the like can be mentioned, and it is particularly preferable to perform surface treatment using silica and / or fluorine compounds as a surface treatment agent.

  The surface treatment method using these surface treatment agents is not particularly limited. For example, in the case of silica, silica as a surface treatment agent and colored interference fibers are placed in a solvent, and silica is coated or adhered to the fibers. Alternatively, after suspending in a solvent, there may be mentioned a method of spraying this on fibers. In the case of a fluorine compound, for example, the fluorine compound is heated and dissolved in an organic solvent such as acetone or toluene, and one or two or more mixtures of fibers are added to the mixture. There is a method in which a fluorine compound is coated or adhered to the substrate, and in some cases, a baking treatment is further performed.

  The amount of the surface treatment agent used in component (A) is not particularly limited and is determined according to the purpose, but is preferably 0.01 to 30%, more preferably 0.1 to 20% of the entire component (A). . If it is this range, the dispersibility of a fiber will improve, a cosmetic effect will appear notably, and the sustainability of the effect will fully be acquired.

  The blending amount of the colored interference fiber of component (A) is not particularly limited, but is preferably 0.1 to 30%, more preferably 0.5 to 15% in the lip cosmetic. If it is this range, the thing which is fully satisfactory in the point of the brightness of an external appearance, the three-dimensional effect of a decorative film, and transparency is obtained.

  On the other hand, the liquid oil having a refractive index of 1.45 or more, which is the component (B) of the lip cosmetic of the present invention, gives gloss to the decorative film. Furthermore, if the refractive index of this component (B), the difference in refractive index from the polymer compound constituting the colored interference fiber of component (A) is reduced, and the transparency of the system by the blending of component (A) is reduced. In order to suppress the decrease, it is possible to obtain the brightness of the appearance and the transparency of the decorative film.

  Examples of this component (B) include methylphenylpolysiloxane, diisostearyl malate, diglyceryl triisostearate (all with a refractive index of 1.46), diglyceryl diisostearate (with a refractive index of 1.47), and liquid acetic acid. Lanolin, heavy liquid isoparaffin (molecular weight 1000) (all refractive index 1.49), polybutene (molecular weight 2300) (refractive index 1.50), paramethoxycinnamate-2-ethylhexyl (refractive index 1.51), etc. Particularly preferred are diglyceryl triisostearate and heavy liquid isoparaffin. These can use 1 type (s) or 2 or more types as needed.

  Moreover, the compounding quantity of a component (B) is not restrict | limited in particular, Although it determines with the form of a product, 20-99% is preferable in lip cosmetics, Furthermore, 30-75% is preferable. Within this range, a satisfactorily satisfactory one can be obtained in terms of the gloss of the decorative film, the gloss of the appearance, and the transparency of the decorative film. The amount of component (B) is preferably 50% or more, more preferably 60% or more of the liquid oil contained in the lip cosmetic of the present invention.

  In addition, the refractive index of the liquid oil described in this specification is obtained by measuring each liquid oil with a hand-held refractometer R-5000 (manufactured by Atago Co., Ltd.) at 20 ° C.

  In the lip cosmetic of the present invention, in addition to the essential components described above, various components that are usually used in cosmetics can be blended depending on the purpose within a range that does not impair the effects of the present invention. For example, oils such as hydrocarbons, higher fatty acid esters, animal and vegetable oils and fats, silicone oils, fluorine-based oils and the like for imparting an emollient feeling, and powders such as organic pigments and inorganic pigments for imparting a coloring effect and powdery feeling. In addition to aqueous components such as water-soluble polymers, alcohols, and water to impart a body and moisture feeling, film forming agents such as polymer emulsions, UV absorbers, moisturizers, antioxidants, beauty ingredients, preservatives Perfumes and the like can be appropriately blended as optional components to impart various effects.

  Of the above optional components, the oil component is a hydrocarbon other than the component (B), regardless of the origin, such as animal oil, vegetable oil, synthetic oil, or the properties of solid oil, semi-solid oil, liquid oil, volatile oil, etc. , Oils and fats, waxes, hardened oils, ester oils, fatty acids, higher alcohols, silicone oils, fluorine oils, lanolin derivatives, oily gelling agents, oil-soluble resins, and the like.

  Specifically, hydrocarbon oils such as light liquid isoparaffin, petrolatum, paraffin wax, ceresin wax, microcrystalline wax, polyethylene wax, ethylene propylene copolymer, montan wax, Fischer-Tropsch wax and other hydrocarbons, beeswax, carnauba wax Waxes such as candelilla wax and gay wax, isononyl isononanoate, cetyl 2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, cholesterol fatty acid ester, N-lauroyl-L-glutamate di (cholesteryl behenyl)・ Esters such as octyldodecyl), fatty acids such as stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid, stearyl alcohol, cetyla Higher alcohols such as coal, lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol, methyltrimethicone, dimethylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, polyether-modified organopolysiloxane, polyoxyalkylene Silicones such as alkylmethylpolysiloxane / methylpolysiloxane copolymer, alkoxy-modified organopolysiloxane, cross-linked organopolysiloxane, and fluorine-modified organopolysiloxane, fluorine-based compounds such as perfluorodecane, perfluorooctane, and perfluoropolyether Oils, lanolin derivatives such as lanolin fatty acid isopropyl, lanolin alcohol, dextrin fatty acid ester, sucrose fatty acid ester , Starch fatty acid ester, 12-hydroxystearic acid, oily gelling agents such as calcium stearate, pentaerythrosyl rosin acid, trimethylsiloxysilicic acid, candelilla resin, acrylic modified silicone, vinyl acetate resin, polyvinyl isobutyl ether, poly Oil-soluble resins such as isobutylene are listed as oil components.

  Moreover, as powder, the thing of spherical shape, plate shape, needle shape, etc. can be mix | blended, without being specifically limited. For example, among the powders, inorganic powders include talc, kaolin, mica, synthetic mica, sericite, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, aluminum magnesium silicate, anhydrous silicic acid, silicon carbide, Barium sulfate, bentonite, smectite, titanium oxide, zinc oxide, magnesium oxide, aluminum oxide, bengara, yellow iron oxide, black iron oxide, titanium monoxide, boron nitride, chromium oxide, conger, ultramarine, iron oxide mica, iron oxide Examples of the organic powder include nylon powder, polyethylene powder, polystyrene powder, silicone powder, methyl methacrylate powder, polytetrafluoroethylene powder, wool powder, silk powder, and crystals. Ceruleau , Tar-based dyes and their lake pigments, and the like. In addition, a composite of these powders can be used, and surface treatment was performed using one or more of fluorine compounds, silicone oils, metal soaps, waxes, fats and oils, and the like. Things can also be used.

  Further, as the aqueous component, water or water-soluble ones, for example, alcohols such as ethyl alcohol and isopropyl alcohol, glycols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol and polyethylene glycol, glycerin, Glycerols such as diglycerin and polyglycerin are listed, and water-soluble components include sugars such as sorbitol, maltitol, sucrose, starch sugar and lactitol, guar gum, sodium chondroitin sulfate, sodium hyaluronate, gum arabic, sodium alginate , Carrageenan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, carboxyvinyl polymer, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid sodium Water-soluble polymers such as um, salts such as sodium chloride, magnesium chloride and sodium lactate, plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender and rose.

  Furthermore, examples of the surfactant include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. In addition, examples of the ultraviolet absorber include benzophenone, PABA, cinnamic acid, salicylic acid, 4-tert-butyl-4′-methoxydibenzoylmethane, oxybenzone, and the like. Polysaccharides, collagen, elastin, keratin and the like are antioxidants such as α-tocopherol and ascorbic acid, cosmetic ingredients such as vitamins, anti-inflammatory agents and herbal medicines, and antiseptics such as paraoxybenzoic acid. Examples include acid alkyl and phenoxyethanol.

  The lip cosmetic of the present invention is produced, for example, by adding various optional components as necessary to the mixture of the above components (A) and (B) and uniformly mixing them using a mixer or the like. can do. Examples of the dosage form of the lip cosmetic include oily cosmetics, water-in-oil cosmetics, and oil-in-water cosmetics.

  The lip cosmetics of the present invention thus obtained are in the form of oil, water-in-oil, oil-in-water, etc., and are solid, semi-solid (gel), liquid, etc., transparent, translucent Or it can be an opaque cosmetic. Of these, oily solid lip cosmetics are preferred because they are easy to carry and use. Specific examples of the solid lip cosmetic include sticks and dishes. Examples of the use of the lip cosmetic of the present invention include lipstick, lip balm, and lipstick overcoat.

  EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited by these examples.

Example 1
Sticky lipstick:
The stick-shaped lipsticks of the present invention products 1 to 4 and comparative products 1 to 4 were prepared according to the formulation shown in Table 1 and the following production method, and they were a. Brightness of appearance, b. Sensory evaluation was performed by the following methods for the three-dimensional effect of the film, d. Transparency and e. Stability of the decorative film. The results are also shown in Table 1. In addition, the sensory evaluation was performed at the same time with respect to the smooth feeling of use.

* 1: Fiber colored with 0.1% red No. 202 (polyethylene terephthalate, Niro
In accordance with JP-A-11-1829, 51 layers are alternately laminated, 6D,
2mm) (presents red interference light)
* 2: Fiber colored with 0.1% red 202 (6D, 2 mm) (does not exhibit interference light)
* 3: Uncolored fiber (6D, 2mm) (no interference light)
* 4: TIMIRON SPLENDID RED (Merck)
* 5: AEROSIL300 (manufactured by Japan Aerology Co.)

(Production method)
A. Components 1 to 15 are uniformly dissolved at 100 ° C.
B. Add components 16 to 21 to A and mix and stir uniformly.
C.B was melt-filled in a container at 90 ° C., and cooled and molded to obtain a stick-shaped lipstick.

(Evaluation methods)
Using the sensory test panel of 20 people, each sample was evaluated on the following items in 7 levels using (1) absolute evaluation criteria, and the average score of each sample was (2) using 4 criteria Judged.
(Evaluation item)
a. Brightness of appearance b. Gloss of decorative film c. Three-dimensional effect of decorative film d. Transparency of decorative film

(1) Absolute evaluation criteria Score: Evaluation 6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad 1: Bad 0: Very bad (2) Four-step criteria : Judgment More than 5 points: ◎
Over 3 points and below 5 points: ○
More than 2 points and less than 3 points: △
2 points or less: ×

  Regarding stability (evaluation item e), the state of each sample at the time of molding is observed, and further, a use test is conducted on each sample by 20 specialist panels, and the shape changes such as red bends and breaks during the test. Were evaluated in four levels using the following (3) absolute evaluation criteria, and the average score of each sample was determined using the four-step criteria in (4) below.

(3) Absolute Evaluation Criteria Rating: Evaluation 3: No change 2: Very slight bending at the time of use (no trouble in use)
1: Bending at the time of use (disturbance at the time of use)
0: Folded when used (4) 4-step criteria Criteria: Judgment: 2.5 or higher: ◎
2 points or more and less than 2.5 points: ○
1.5 points or more and less than 2 points: △
Less than 1.5 points: ×

  As is apparent from the results in Table 1, the lipsticks of the products 1 to 4 of the present invention have a. Gloss of appearance, b. Gloss of cosmetic film, c. Three-dimensional effect of cosmetic film, d. Transparency of cosmetic film, e. It can be seen that it has excellent characteristics in stability. The feeling of use was also smooth.

  On the other hand, in the comparative product 1 containing a colored nylon fiber that does not exhibit interference light instead of the colored interference fiber of the component (A) and the comparative product 2 that contains a nylon fiber that does not exhibit coloring and interference light, What was satisfactory in terms of the three-dimensional appearance of the decorative film was not obtained. Moreover, in the comparative product 3 which mix | blended the mica titanium which exhibits interference light instead of a component (A), the refractive index is 1.45 instead of the liquid oil of the component (B) from the point of transparency of a decorative film. In Comparative product 4 containing less liquid oil, no satisfactory product was obtained in terms of gloss of the decorative film.

Example 2
Solid lip gloss (cast-in dish):
Solid lip gloss was produced by the following formulation and production method.
(Component) (%)
1. Dextrin fatty acid ester ^{* 6} 12
2. Diisostearyl malate (refractive index: 1.46) 60
3. Rosin acid pentaerythrit 5
4. Liquid paraffin (refractive index 1.46) remaining amount 5. acetic acid liquid lanolin (refractive index 1.49) 2
6. Colored interference fibers ^{* 7} 2
7. Silicic anhydride ^{* 8} 0.5
8. Synthetic phlogopite 2
9. Red No. 104 2
10. Yellow No. 4 4
11. Black iron oxide 1.5
12. Ultramarine 0.5
13. Natural vitamin E proper amount 14. Fragrance proper amount
* 6: (palmitic acid / 2-ethylhexanoic acid) dextrin
* 7: Fibers colored with 1% Yellow No. 4 (polyethylene terephthalate, nylon laminated 30 layers alternately according to Japanese Patent Laid-Open No. 11-1829, 3D, 0.5 mm
) (Presents yellow interference light)
* 8: AEROSIL200 (manufactured by Japan Aerology Co.)

(Production method)
A. Components 1 to 5 are uniformly dissolved at 100 ° C.
B. Add ingredients 6 to 14 to A and mix and stir uniformly.
C.B was melt-filled in a dish-shaped container at 80 ° C., cooled and molded to obtain a dish-shaped solid lip gloss.

  The lip gloss of the present invention was excellent in brightness of the appearance, gloss of the decorative film, three-dimensional appearance and transparency of the decorative film, stability, and smooth use feeling.

Example 3
Gel lipstick:
(Component) (%)
1. Ozoquelite wax 0.2
2. Dextrin fatty acid ester ^{* 6} 8
3. Heavy liquid isoparaffin (molecular weight 1000) (refractive index 1.49) 0.1
4. Diisostearyl malate (refractive index 1.46) 65
5. Pentaerythlit octanoate slit (refractive index 1.45) 8
6. α-olefin oligomer (refractive index 1.46) 6
7. Methyl polysiloxane (refractive index 1.40) Remaining amount 8. Colored interference fiber ^{* 9} 0.6
9. UV absorber (paramethoxycinnamic acid-2-ethylhexyl) 0.1
10. Ultramarine 0.4
11. Silylated silicic acid ^{* 10} 2
12. Methyl trifluoropropylcyclopolysiloxane (refractive index 1.37) ^{* 11} 7
* 9: A fiber colored with 0.05% red No. 106 and treated with 5% perfluoroalkyl phosphate ester ethanolamine salt (polyethylene terephthalate, nylon laminated 51 layers alternately according to JP-A-11-1829, 0.05D,
0.01 mm) (presents red interference light)
* 10: AEROSIL R972 (manufactured by Nippon Aerology Co., Ltd.)
* 11: KF-5002 (manufactured by Shin-Etsu Chemical Co., Ltd.)

(Production method)
A. Components 1 to 7 are uniformly dissolved at 100 ° C.
B. Components 11 and 12 are kneaded uniformly.
C. Components 8 to 10 and B are added to A, and mixed and stirred uniformly.
DB was filled into a container to obtain a gel lipstick.

  The gel-like lipstick of the present invention had excellent appearance, glossiness of the decorative film, three-dimensional appearance and transparency of the decorative film, no separation of liquid oil, excellent stability, and smooth use feeling.

Example 4
Stick lip balm:
(Component) (%)
1. Ethylene / propylene copolymer 7
2. Polyethylene wax 1
3. Paraffin wax 2
4. Vaseline 20
5. Diglyceryl triisostearate (refractive index 1.46) 30
6. Diglyceryl tetraisostearate (refractive index 1.46) Remaining amount 7. Xanthan gum 0.1
8. Locust bean gum 0.3
9.1,3-butylene glycol 2
10. Preservative appropriate amount 11. Purified water 15
12. Bengala 3.5
13. Yellow iron oxide 2
14. Black iron oxide 0.3
15. Colored interference fibers ^{* 1} 5
16. Colored interference fibers ^{* 7} 1
17. Perfume appropriate amount

(Production method)
A. Components 9 to 11 are mixed uniformly.
B. Ingredients 7 and 8 are dispersed in A to form a water swell.
C. Components 1 to 6 are dissolved at 100 ° C., and components 12 to 16 are added and dispersed uniformly.
Disperse B and component 17 uniformly in DC.
ED was melt-filled in a container at 85 ° C., cooled and molded to obtain a stick-shaped lip balm.

  The lip balm of the present invention was excellent in brightness of the appearance, gloss of the decorative film, three-dimensional appearance and transparency of the decorative film, stability, and smooth use feeling.

Example 5
Solid lip gloss (cast-in dish):
A cast dish-shaped solid lip gloss was obtained in the same manner as in Example 2 except that the colored interference fiber ^{* 7} was replaced with the following colored interference fiber.

Use colored interference fiber:
Fibers colored with 0.05% red No. 202 (polyethylene terephthalate, nylon, alternately laminated 61 layers according to Japanese Patent Laid-Open No. 11-1829, with an elliptical cross section treated with 2% silica. (9D (Long axis 70 μm, short axis 17 μm),
2mm) (presents red interference light)

  The solid lip gloss of the present invention was more excellent in appearance shine, more excellent in the gloss of the decorative film, more in the three-dimensional appearance of the decorative film, more excellent in transparency and stability, and smooth in use. .

The lip cosmetic of the present invention is excellent in the gloss of the decorative film, the three-dimensional effect, transparency, and stability of the decorative film, has a smooth use feeling, and exhibits an appearance with excellent glitter. In particular, when a transparent or translucent lip cosmetic is used, a more excellent lustrous appearance and a transparent cosmetic film can be obtained.

that's all

Claims (10)

The following components (A) and (B);
(A) Colored interference fiber containing two or more kinds of polymer compounds having different refractive indexes (B) A lip cosmetic comprising liquid oil having a refractive index of 1.45 or more.   The lip cosmetic according to claim 1, wherein the polymer compound of component (A) is at least two of polymer compounds selected from polyethylene terephthalate, nylon and polypropylene.   The lip cosmetic according to claim 1 or 2, wherein the colorant for coloring the component (A) fiber is a water-soluble tar pigment.   The lip cosmetic according to any one of claims 1 to 3, wherein the fiber of the component (A) has a length of 0.01 mm or more and 5 mm or less.   The lip cosmetic according to any one of claims 1 to 4, wherein the fiber of the component (A) has a thickness of 0.01 denier or more and 20 denier or less.   The lip cosmetic according to any one of claims 1 to 5, wherein the component (A) has a surface treated with silica.   The lip cosmetic according to any one of claims 1 to 6, wherein, in the component (A), the color of the colorant that colors the interference fiber is a similar color of the interference color of the interference fiber.   The lip cosmetic according to any one of claims 1 to 7, comprising 0.1 to 30% by mass of the component (A).   The lip cosmetic according to any one of claims 1 to 8, comprising 20 to 99% by mass of the component (B). The component (B) is one or more liquid oils selected from methyl phenyl polysiloxane, diisostearyl malate, diglyceryl triisostearate, liquid lanolin acetate and heavy liquid isoparaffin. Lip cosmetics according to any one of -9.