JP2003105225A - Composite organic pigment and cosmetic containing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a composite organic pigment in which a color-developability is good and a bleeding for water or an organic solvent is controlled, and to provide a cosmetic containing the pigment. SOLUTION: An organic dye which dissolves into water and the organic solvent is completely dissolved in water, two kinds of inorganic hydroxides are precipitated while adjusting pH in the presence of two or more kinds of inorganic salts, a platelet and layered inorganic powder is added, and the organic dye, the inorganic hydroxides and the inorganic powder are adhered to formulate the composite organic pigment. The cosmetic is formulated by containing the composite organic pigment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite organic pigment having an organic dye that dissolves or dissolves in water and / or an organic solvent, and a cosmetic material containing the composite organic pigment.

[0002]

2. Description of the Related Art Conventionally, organic dyes, especially Blue No. 1 and Blue No. 1
The No. aluminum lake is widely used in cosmetics, especially makeup cosmetics, because it has excellent coloring and coloring properties and high saturation.

However, organic dyes or lakes such as Blue No. 1 and Blue No. 1 aluminum lakes dissolve in water or an organic solvent or cause partial elution (bleeding), so that they are blended and applied to cosmetics. However, there is a problem that when it is used, it is dyed at the site of use.

In order to solve these problems, Japanese Unexamined Patent Application Publication No. Hei 8
No. 302230 discloses a method of intercalating a blue No. 1 aluminum lake composition between crystal structure layers of swelling smectite.

[0005]

However, in the method disclosed in Japanese Patent Application Laid-Open No. 8-302230, the molecule of Blue No. 1 is tentatively intercalated between the layers, but the immobilization is not complete and water is not completely fixed. The problem of easy elution is not completely solved.

The present invention has been made in order to solve the above problems, and it is a composite that exhibits the original coloring property of the dye and can suppress the bleeding such that the dye is eluted into water or an organic solvent. It is an object to provide an organic pigment and a cosmetic containing the composite organic pigment.

[0007]

[Means for Solving the Problems and Actions / Effects] In view of such circumstances, as a result of intensive studies by the present inventors, as a result, an organic dye which dissolves or elutes in water and / or an organic solvent was added to a plate-like layered inorganic powder. The complex organic pigment obtained by complexing and fixing the body and two or more kinds of inorganic hydroxides is found to be stable to water and organic solvent, and in addition, a cosmetic containing the complex organic pigment. The present invention has completed the present invention by finding out that the color tone is good, bleeding is unlikely to occur, and that the usage site has excellent characteristics.

That is, in the composite organic pigment according to the first aspect of the present invention, an organic dye that dissolves or dissolves in water and / or an organic solvent is combined with a plate-like layered inorganic powder and two or more kinds of inorganic hydroxides. It is characterized in that it is fixed by being made into.

According to the composite organic pigment of the present invention, it is an excellent pigment that exhibits the original color developability of the dye, is stable to water and organic solvents, and suppresses bleeding. When combined with cosmetics such as skin care cosmetics and hair care cosmetics, it exhibits excellent color development,
Bleeding is suppressed and excellent characteristics are exhibited at the site of use.

In the present invention, the pure dye content in the composite organic pigment is preferably 5 to 50%. More preferably, it is 10 to 30%. If the pure dye content in the composite organic pigment is less than 10%, the color developability is remarkably reduced, and if it is 50% or more, the dye elution becomes severe, which is not preferable.

In the present invention, the plate-like layered inorganic powder is preferably swelling smectite (second invention). By doing this, the color developability of the organic dye,
To provide a composite organic pigment that exhibits stability to water and an organic solvent, and that, when blended as a cosmetic, exhibits superior color development, more suppressed bleeding, and superior properties depending on the site of use. You can

Next, the cosmetic material according to the third invention is characterized in that it is a cosmetic material containing the composite organic pigment according to the first invention or the second invention. According to the invention,
It is possible to provide a cosmetic in which the original coloring of the dye is obtained, the color does not become dull, dyeing at the use site is suppressed, and the dispersibility and stability over time are excellent.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Next, specific embodiments of the composite organic pigment and the cosmetics containing the same according to the present invention will be described.

The composite organic pigment according to the present embodiment is one in which an organic dye that dissolves in water or an organic solvent is completely dissolved in water once, and two types of inorganic water are adjusted while adjusting the pH by the presence of two types of inorganic salts. An oxide is deposited, and a plate-like layered inorganic powder is added, and an organic dye, two kinds of inorganic hydroxides and a plate-like layered inorganic powder are compounded and chemically fixed.

In the present embodiment, the pure dye content in the composite organic pigment is preferably 5% or more and less than 50%, more preferably 10 to 30%. This is because if the pure dye content in the composite organic pigment is less than 10%, the color developability is significantly reduced, and if it is 50% or more, the elution of the dye becomes severe.

Examples of the organic dye include red 20
No. 1, Red No. 202, Red No. 226, Yellow No. 4, Yellow 5
No. 1, Blue No. 1, Black No. 401 and the like. Examples of the inorganic salt include metal chlorides such as magnesium chloride and aluminum chloride. In addition, examples of the inorganic hydroxide to be deposited include magnesium hydroxide and aluminum hydroxide. Examples of the plate-like layered inorganic powder include montmorillonite, beidellite, hectorite, saponite, nontronite, and swelling fluorine-based mica.

As a method for producing the composite organic pigment, after adding an aqueous solution of an alkali salt such as sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide or ammonia, or a mixed solution thereof to a magnesium chloride solution,
A solution in which an organic dye is dissolved and an inorganic salt such as aluminum chloride, aluminum bromide, aluminum iodide, etc. is further added, neutralized with an alkali salt such as sodium carbonate or sodium acetate, and Na-type montmorillonite is added. There is a way to do it.

After the completion of the reaction aging, the obtained pigment is filtered and washed. As a method for filtering, conventionally known methods such as pressure filtration, reduced pressure filtration, natural filtration, centrifugation, decantation and the like can be used.

The solvent used for washing the pigment obtained after filtration may be water, lower alcohol, acetone, or a mixture of two or more of these. When the finally obtained pigment is dried, it is preferably dried at a temperature of 60 ° C. or lower. After drying, pulverize with a pulverizer such as an atomizer to obtain a powder. In this way, a composite organic pigment is produced.

The composite organic pigment of the present embodiment can be contained in compositions such as cosmetics, paints, inks, plastics, fibers, and rubber toners. When it is compounded as a cosmetics, the coloring property, color developability, It is effective in suppressing bleeding.

Examples of cosmetics containing the composite organic pigment of the present embodiment include makeup cosmetics, skin care cosmetics, hair care cosmetics, and the like, and the dosage forms are oily solids, oily liquids, and solids. Shape, cream, paste, emulsification, lotion, powder, powder solid and the like can be mentioned. In terms of more effective expression, makeup cosmetics are most preferable, and as the makeup cosmetics, lipsticks, eye products, foundations, blushers, nail polishes,
Examples include white powder, concealer, and sunscreen cosmetics.

The blending amount of the composite organic pigment of the present embodiment in the cosmetic is arbitrarily selected according to the characteristics of the cosmetic, but is 0.
001-80 wt% is preferable.

In the cosmetic of the present embodiment, the components usually used in cosmetics can be appropriately blended if necessary.

Examples of the oil content include oils and fats such as olive oil, castor oil, jojoba oil and mink oil, waxes such as beeswax, lanolin and candelilla wax, liquid paraffin,
Hydrocarbons such as squalane, petrolatum, paraffin wax and microcrystalline wax, fatty acids such as stearic acid and oleic acid, higher alcohols such as cetanol, stearyl alcohol and behenyl alcohol, isopropyl myristate, glyceryl trioctanoate, diglyceryl triisostearate and the like. Examples thereof include esters, lanolin fatty acid isopropyl, lanolin derivatives such as lanolin alcohol, silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane, and fluorinated oils such as perfluorodecane and perfluorooctane.

Examples of the powder include inorganic extender pigments such as talc, kaolin, sericite, mica, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, magnesium aluminum silicate, calcium silicate and silicic anhydride. , Inorganic white pigments such as zinc oxide, red iron oxide, yellow iron oxide, black iron oxide, ultramarine, konjac, inorganic color pigments such as carbon black, titanium mica,
Pearl oxide such as iron oxide mica titanium and bismuth oxychloride,
Organic powders such as organic pigments, nylon powder, silk powder, polyethylene powder, crystalline cellulose, N-acyl lysine and the like can be mentioned. These powders may be surface-treated with a fluorine-based compound, a silicone-based oil agent, metal soap, wax, fats and oils, hydrocarbons and the like.

Other examples include organic solvents, resins, plasticizers, ultraviolet absorbers, preservatives, surfactants, humectants, fragrances, water, alcohols, thickeners and the like.

[0027]

EXAMPLES Next, specific examples of the composite organic pigment and the cosmetics containing the same according to the present invention will be described.

(Production Example 1) 11 g of magnesium chloride hexahydrate was dissolved in 100 ml of water. Next, 12.5 g of ammonia water was slowly added dropwise to this solution,
Blue No. 1 (5 g) was added. Separately, a solution in which 33.4 g of aluminum chloride hexahydrate was dissolved was prepared, and this solution was added dropwise to the above solution, and further a solution in which 12.6 g of sodium carbonate was dissolved was added, and a Na-type montmorillonite slurry (solid 2.89% min.) (230 g) at room temperature
Aged for hours. Then, the product was filtered, washed with water and then with acetone. Then, it was dried at 50 ° C. and pulverized to obtain a composite organic pigment.

(Manufacturing Comparative Example 1) Japanese Patent Laid-Open No. 8-302230
As disclosed in Japanese Patent Publication No. 1-5.
A solution dissolved in 9 ml and aluminum chloride hydroxide (A
CH) solution (manufactured by Asada Chemical Industry Co., Ltd., Al concentration: 2.3)
2M, specific gravity 1.185) and 8.21 g were prepared, both were heated to 90 ° C., and then the dye solution was slowly mixed into the ACH solution over 1 hour. After stirring at 90 ° C. for 1 hour, the resulting insoluble matter was filtered, and when insoluble matter was found in the filtrate, it was filtered again to obtain a cationic sol solution containing no insoluble matter at all. Combine the wash water and add 40
It was made up to 0 ml and heated to 90 ° C. Separately, 3 g of Na-type montmorillonite (Kunimine Industries Co., Ltd.) was dispersed in 300 ml of water and heated to 90 ° C. to prepare a suspension. did. The colored product was filtered, washed with water, and then dried at 50 ° C. until a constant weight was obtained to obtain an interlayer composite.

(Production Comparative Example 2) An interlayer composite was obtained in the same manner as Production Comparative Example 1 except that the amount of the ACH solution added was 91.07 g.

The composite organic pigment of Production Example 1 obtained as described above and the pigments of Production Comparative Example 1 and Production Comparative Example 2 were subjected to an elution test with water and an elution test with 95 wt% ethanol to evaluate bleeding. Was measured.

As an elution test for water, 1 g of each pigment was put in 50 ml of purified water, stirred for 1 hour with a magnetic stirrer, and then centrifuged at 5500 r.
After treating with pm for 5 minutes, the supernatant liquid was filtered with a membrane filter (0.45 μm), and the filtrate 630
The light transmittance in nm was measured using a spectrophotometer.

As an elution test for the 95% ethanol, 0.2 g of each of the pigments was added to 95 wt% ethanol 50
After adding 1 ml to a magnetic stirrer and stirring it with a magnetic stirrer for 1 hour, treat it with a centrifuge at 5500 rpm for 5 minutes, then filter the supernatant with a membrane filter (0.5 μm) to transmit the light at 630 nm of the filtrate. The rate was measured using a spectrophotometer.

Dissolution test for these water and 95 wt%
The results of the dissolution test for ethanol are shown in Table 1.

[Table 1]

As is clear from the results in Table 1, the composite organic pigment of Production Example 1 to which an organic dye is fixed has a higher transmittance than the pigments of Production Comparative Example 1 and Production Comparative Example 2. You can see that That is, it was confirmed that the pigment is an excellent pigment that is difficult to bleed with water or ethanol.

In addition, oils, powders, organic solvents, resins, plasticizers, ultraviolet absorbers, preservatives, surfactants, moisturizers, fragrances, water, alcohols and additives used in the above-mentioned ordinary cosmetics. To prepare a cosmetic composition containing the composite organic pigment prepared in Production Example 1 and a cosmetic composition containing the interlayer composite prepared in Production Comparative Example 1 and 2 by appropriately mixing a sticking agent and the like, Sensory tests of these cosmetics were conducted.

It was confirmed that the cosmetics containing the interlayer composites prepared in Production Comparative Example 1 and Production Comparative Example 2 were poor in both coloring and coloring properties and were dyed at the site of use. On the other hand, it was confirmed that the cosmetic composition containing the composite organic pigment prepared in Production Example 1 was an excellent cosmetic composition in which the original coloring and coloring properties of the pigment were obtained, and the dye was not dyed at the site of use.

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Claims (3)

[Claims] 1. An organic dye which dissolves or dissolves in water and / or an organic solvent is fixed to a plate-like layered inorganic powder and a composite of two or more kinds of inorganic hydroxides by complexing. Is a composite organic pigment. 2. The composite organic pigment according to claim 1, wherein the plate-like layered inorganic powder is a swelling smectite. 3. A cosmetic comprising the composite organic pigment according to claim 1 or 2.