JP5312738B2 - Cosmetic colorants and makeup cosmetics - Google Patents

Description

  The present invention relates to a color material for cosmetics, and more particularly to a color material for cosmetics that is vivid and dull. Moreover, it is related with the makeup cosmetics which mix | blended this coloring material for cosmetics.

Conventionally, various attempts have been made in order for color materials used in cosmetics to produce vivid and dull colors. There are development of various pearl agents for producing a sparkling feeling and a three-dimensional feeling, and improvement of colorant dispersibility by a powder surface treatment technique for bringing the colorant color closer to the original color tone of the colorant.
In addition, attempts have been made to newly develop the color tone inherent to the color material, but it has been difficult to develop a new dye from the viewpoint of safety such as the Pharmaceutical Affairs Law.

  Therefore, it is desired to develop a color material having a new color tone that is safe, vivid and dull, using existing dyes and non-dye materials.

  Patent Document 1 discloses a skin cleanser containing spherical nylon having a particle size of 30 to 500 μm dyed with a dye. This spherical nylon is used as a scrub agent, and the color tone of dyed nylon is as follows. There is almost no change in the color tone of the dye, and it does not have a new color tone that is vivid and dull. Moreover, the purpose is to provide a skin cleanser, and the technical scope and problems to be solved are different from the color materials used in makeup cosmetics.

JP-A-5-320041

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has an object of providing a cosmetic colorant having high safety and capable of expressing a vivid and dull color, and a makeup cosmetic using the colorant. Is to provide.

  As a result of intensive studies in view of the above situation, the present inventors have found that a cosmetic coloring material containing a polyamide powder having a molecular weight of 100,000 or less and a cosmetic dye has high safety and is already existing. The present invention has been completed by confirming that the fluorescent material can produce a bright and dull fluorescent color that could not be obtained with the above color material.

  The present invention is a cosmetic colorant comprising a polyamide powder having a weight average molecular weight of 10,000 to 100,000 and a volume average particle size of 0.1 to 20 μm, and a cosmetic dye. The cosmetic color material is mainly used as a makeup color material, but is not limited thereto.

  In the present invention, a polyamide powder having a weight average molecular weight of 10,000 to 100,000 and a volume average particle size of 0.1 to 20 μm is added to an oil component in which a cosmetic dye is dissolved or dispersed, and the mixture is heated and mixed for makeup. A method for producing a color material for cosmetics, characterized by producing a color material for cosmetics.

  The present invention is a makeup cosmetic comprising the cosmetic colorant described above.

  The present invention is a lipstick comprising the cosmetic colorant described above.

According to the present invention, it is possible to provide a cosmetic colorant and a makeup cosmetic that are highly safe and have a bright and dull fluorescent color.
Further, according to the method for producing a color material for cosmetics of the present invention, it is possible to produce a color material for cosmetics that has good color stability and is vivid and smooth with a simple method.

The best mode of the present invention will be described below.
(Coloring material for cosmetics)
The color material for cosmetics of the present invention comprises a polyamide powder having a weight average molecular weight of 10,000 to 100,000 and a volume average particle size of 0.1 to 20 μm, and a cosmetic dye.

As the polyamide powder used in the color material for cosmetics of the present invention, nylon powder is preferable.
Nylon includes nylon-6, nylon-66, nylon-6,12 copolymer, nylon-11, nylon-12, etc., among which nylon-12, nylon-6, nylon-6,12 copolymer are preferable. . As nylon-12, nylon SP-500 (manufactured by Toray Industries Inc., particle size of 10 μm or less, spherical powder), nylon SP-10 (manufactured by Toray Industries Inc., particle diameter of 10 μm, spherical powder), nylon SP-20 (manufactured by Toray Industries Inc., Particle diameter 20 μm, spherical powder) and the like. Examples of nylon-6 include Toray TR-1 (manufactured by Toray Industries, Inc., particle size 13 μm, porous powder), Organzol 1002 D NAT COS (manufactured by Arkema, Inc., particle diameter 20 μm, bulk powder), and the like. Examples of the nylon-6,12 copolymer include nylon powder HK-5000 (manufactured by Shinto Fine Co., Ltd., particle size 7 μm, spherical powder). Each of the above powders has a molecular weight of 10,000 to 100,000.

  The molecular weight of the polyamide powder used in the color material for cosmetics of the present invention is preferably 10,000 to 100,000 in terms of weight average molecular weight, and more preferably 10,000 to 60,000. When it exceeds 100,000, it becomes inferior in vivid color developability and does not emit fluorescent color. If the molecular weight is less than 10,000, it is difficult to formulate as a powder for cosmetics because crystallinity is insufficient.

The volume average particle size of the polyamide powder is preferably in the range of 0.1 to 20 μm, more preferably 2 to 15 μm. If the volume average particle size is larger than 20 μm, the feeling in use is deteriorated, which is not preferable.
Furthermore, the shape of the polyamide powder is preferably spherical and porous rather than bulky from the viewpoint of fluorescence coloring property.

  The cosmetic dye used in the present invention refers to a dye that is usually used for cosmetics. Particularly, oil-soluble dyes are preferable in terms of vividness, and red 218 (tetrachlorotetrabromofluorescein), red 223 ( Tetrabrom fluorescein), Daidai No. 201 (dibromofluorescein) and the like. Of these, Red No. 218 (tetrachlorotetrabromofluorescein) is particularly preferred. When water-soluble dyes such as Red No. 106 and Blue No. 1 are used, the vividness is slightly inferior and fluorescence is not emitted.

  Moreover, 0.01-5 mass% is preferable with respect to a polyamide powder, and, as for the compounding quantity of the cosmetic dye used for the color material for cosmetics of this invention, More preferably, it is 0.1-2 mass%.

  The coloring material for cosmetics of the present invention can be obtained by adding polyamide powder to oil in which a dye is dissolved or dispersed, stirring and mixing while heating, and filtering. When a highly specific substance is used, a method of volatilizing the solvent by heating after adding the polyamide powder is also possible. Moreover, when manufacturing makeup cosmetics, the coloring material preparation in cosmetics manufacture is also possible by mixing a polyamide powder and dye with the compounding component.

(Makeup cosmetics, lipstick)
The makeup cosmetic of the present invention is a makeup cosmetic comprising the above-described colorant for cosmetics.
Examples of makeup cosmetics include lipstick, lip gloss, eye shadow, blusher, etc., and can be applied to general makeup cosmetics regardless of their type, but lipstick is particularly bright and dull. It is preferable for expressing the effect of the coloring material.

  The makeup cosmetic of the present invention may be prepared by preparing the above-mentioned colorant for cosmetics in advance and adding it to the cosmetic base material. However, the polyamide is added to the oil in which the cosmetic dye is dissolved or dispersed. After adding powder and heating, you may manufacture by adding the component normally used for cosmetics. It is preferable in terms of operability to prepare a color material for cosmetics at the cosmetic production stage as in the latter case.

  The blending amount of the polyamide powder used in the makeup cosmetic of the present invention is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, and particularly preferably 0.1 to 20% by mass in the total amount of the cosmetic. 10% by mass.

  The amount of the cosmetic dye used in the makeup cosmetic of the present invention is preferably 0.0003 to 1.0% by mass, more preferably 0.001 to 1.0% by mass, based on the total amount of the cosmetic. Most preferably, it is 0.01-0.5 mass%.

  In addition to the essential components described above, the makeup cosmetic of the present invention includes components usually used in makeup cosmetics, such as humectants, antioxidants, oily components, surfactants, thickeners, alcohols, powder components, An aqueous component, water, various skin nutrients, etc. can be suitably mix | blended as needed.

  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.

[Test Example 1]
Each lipstick was prepared according to the following formulation using nylon having different molecular weights for the color development test and the fluorescence test. The color development test evaluated the color development when natural light was applied, and the fluorescence test evaluated the color development when a UV lamp (black light) was applied.

(Prescription, manufacturing method)
Add 5% by mass of nylon powders (average particle size of about 10 μm) with different molecular weights listed in Table 1 and 0.05% by mass of Red No. 218 to the lipstick formulation as described in Table 2, and heat and mix to 80 ° C. And cooled to 5 ° C.

(Color evaluation criteria / Fluorescence evaluation criteria)
Each sample is evaluated according to the following evaluation criteria, and the evaluation results are shown in Table 1.
(Method)
The red color development state of each sample was observed.
◎: Strongly colored ○: Well colored △: Slightly colored ×: Not colored

In the fluorescence test, the color development when a UV lamp (black light) was applied was evaluated.
(Method)
The fluorescence state of each sample was observed.
◎: Strong fluorescence is observed ○: Fluorescence is observed △: Slight fluorescence is observed ×: Fluorescence is not recognized

[Test Example 2]
In order to investigate the pigment, samples of Test Examples (2-1) to (2-6) shown in Table 3 were prepared, and absorbance (reflectance) at 400 to 750 nm was measured.

* 1: Nylon SP-500 (manufactured by Toray Industries, Inc., particle size of 10 μm or less, average molecular weight 45000, spherical powder)
In Table 3, Red No. 202 (Risor Rubin BCA), Red No. 104 (1) (Phloxine), and Bengala are pigments. In Table 3, the toning base indicates the prescription from polyethylene wax to tocopherol in Table 2.

  FIG. 1 shows the reflectance of light at 400 to 750 nm in each test example. In the figure, A to F show Test Examples (2-1) to (2-6), respectively. As shown in FIG. 1, A = (2-1) shows absorption in the wavelength region of 400 to 550 nm, while a strong reflection spectrum is observed in the wavelength region near 600 nm compared to other colorants. From this, it can be seen that peculiar color development not found in existing color materials is obtained.

[Example 1] Lipstick A lipstick was prepared according to the formulation shown below.
(1) Polyethylene 1.0% by mass
(2) Ceresin 12.0
(3) Carnavalou 2.0
(4) Pentaerythrityl tribenzoate 20.0
(5) Castor oil 15.0
(6) Sunflower oil 2.0
(7) Dimethylpolysiloxane 10.0
(8) Nylon-6 (molecular weight 20,000) 10.0
(9) Red No. 218 0.1
(10) Bengala 0.5
(11) Vitamin E Acetate Appropriate amount (12) Tocopherol Appropriate amount (13) Fragrance Appropriate amount (14) Dipentaglycol neopentyl glycol Residue <Production>
Each formulation component shown in this example was heated to 90 ° C., stirred, mixed and defoamed, then filled into a lipstick container and cooled to 5 ° C. to obtain a lipstick. This cosmetic had no problems during production such as color material aggregation and was excellent in color development.

[Example 2] Lipstick A lipstick was prepared according to the following formulation.
(1) Microcrystalline wax 2.0% by mass
(2) Ceresin 13.0
(3) Polybutene 10.0
(4) Liquid lanolin 2.0
(5) Macadamia nut oil fatty acid phytosteryl 6.0
(6) Diisostearyl malate 10.0
(7) Diisostearic acid glycerine 10.0
(8) Isostearyl oxystearate 10.0
(9) Octyl methoxycinnamate 5.0
(10) Methylphenyl polysiloxane 5.0
(11) Squalane 1.0
(12) Nylon-6 (molecular weight 20,000) 1.0
(13) Barium sulfate 2.0
(14) Red No. 223 0.05
(15) Bengala-coated mica titanium 0.1
(16) Tocopherol appropriate amount (17) perfume appropriate amount (18) glyceryl trioctanoate residue <Production method>
Each formulation component shown in this example was heated to 90 ° C., stirred, mixed and defoamed, then filled into a lipstick container and cooled to 5 ° C. to obtain a lipstick. This cosmetic had no problems during production such as color material aggregation and was excellent in color development.

Example 3 Lipstick A lipstick was prepared according to the formulation shown below.
(1) Polyethylene wax 10.0% by mass
(2) Candelilla wax 2.0
(3) Polybutene 5.0
(4) Glyceryl triisostearate 15.0
(5) Tetra-2-ethylhexanoic acid pentaerythrityl 15.0
(6) Dimer dilinoleic acid di (isostearyl / phytosteryl) 10.0
(7) Calcium hydrogen phosphate 0.5
(8) Nylon-12 (molecular weight 50,000) 3.0
(9) Red No. 218 0.2
(10) Bengala 2.1
(11) Black iron oxide 0.1
(12) Titanium oxide 2.3
(13) Blue No.1 0.2
(14) Tocopherol appropriate amount (15) Liquid paraffin residue <Production method>
Each formulation component shown in this example was heated to 90 ° C., stirred, mixed and defoamed, then filled into a lipstick container and cooled to 5 ° C. to obtain a lipstick. This cosmetic had no problems during production such as color material aggregation and was excellent in color development.
Example 4 Lip Gloss A lip gloss was prepared according to the following formulation.
(1) Liquid paraffin 10.0% by mass
(2) Polyisobutene 10.0
(3) Diisostearyl malate 10.0
(4) Dextrin palmitate 10.0
(5) Nylon-12 (molecular weight 50,000) 1.0
(6) Daidai 201 No. 0.2
(7) Bengala 0.2
(8) Yellow iron oxide 0.2
(9) Titanium dioxide 0.6
(10) Red No. 202 0.1
(11) Tocopherol Appropriate amount (12) Fragrance Appropriate amount (13) Glyceryl diisostearate residue <Production method>
Each formulation component shown in this example was heated to 90 ° C., stirred, mixed and defoamed, then filled into a lipstick container and cooled to 5 ° C. to obtain a lipstick. This cosmetic had no problems during production such as color material aggregation and was excellent in color development.

Example 5 Eye Shadow An eye shadow was prepared according to the following formulation.
(1) Sericite 7.0% by mass
(2) Mica 15.0
(3) Polymethyl methacrylate 3.0
(4) Synthetic mica 2.0
(5) Titanium oxide-coated mica 4.0
(6) Iron oxide 1.5
(7) Boron nitride 5.0
(8) Talc Residue (9) Nylon-6 (molecular weight 20,000) 10.0
(10) Red No. 218 0.1
(11) Squalane 2.0
(12) Dimethylpolysiloxane 2.0
(13) Sorbitan monooleate 0.5
(14) Preservative appropriate amount (15) Fragrance appropriate amount <Production method>
(1) to (8) are pulverized and mixed, and (9) to (13) are heated and mixed at 80 ° C. to add a color material for cosmetics. I got an eye shadow. This cosmetic had no problems during production such as color material aggregation and was excellent in color development.

  The makeup cosmetics obtained in Examples 1 to 5 were all bright and dull.

It is a figure which shows the relationship between the reflectance of light and wavelength in 400-750 nm of Test Example 2.

Claims (6)

A polyamide powder having a weight average molecular weight of 10,000 to 100,000 and a volume average particle size of 0.1 to 20 μm, and a cosmetic dye;
The cosmetic dye is an oil-soluble dye selected from Red No. 218, Red No. 223 and Daidai No. 201,
A color material for cosmetics characterized by fluorescent color development. The polyamide powder is one or more selected from nylon-6, nylon-66, nylon-6,12 copolymer, nylon-11, nylon-12, and the oil-soluble dye is red 218 (tetrachlor). The colorant for cosmetics according to claim 1, wherein the colorant is one or more selected from tetrabromofluorescein), red No. 223 (tetrabromofluorescein), and orange 201 (dibromofluorescein). The cosmetic colorant according to claim 1 or 2 , wherein the amount of the cosmetic dye based on the polyamide powder is 0.01 to 5% by mass. It is a manufacturing method of the coloring material for cosmetics given in any 1 paragraph of Claims 1-3 ,
A polyamide powder having a weight average molecular weight of 10,000 to 100,000 and a volume average particle size of 0.1 to 20 μm is added to an oil in which a cosmetic dye is dissolved or dispersed, and the mixture is stirred and mixed while heating. A method for producing a color material for cosmetics, characterized by producing a color material for cosmetics. A makeup cosmetic comprising the cosmetic coloring material according to any one of claims 1 to 3 . A cosmetic for lips, comprising the cosmetic coloring material according to any one of claims 1 to 3 .

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