KR0132181B1 - Process for producing blue-green composite pigment and color make-up being consisted of it - Google Patents

Abstract

The present invention relates to a process for producing blue-green composite pigment and shade cosmetic. The blue-green composite pigment for shade cosmetic was manufactured by coating sodium silicate solution on inorganic pigments such as ferric oxide and titanium dioxide to obtain silica beads; dissolving an organic tar pigment having a reflectance spectrum of 450-550nm, a blue-green inorganic pigment and water-soluble cellulose or water-soluble polysaccharide polymer in distilled water; spay-coating the solution on the silica beads.

Description

Manufacturing method of turquoise complex pigment and color cosmetic containing same

The present invention relates to a method for preparing a cyan complex pigment for color cosmetics, and more particularly, using a cyan pigment and skin color-like pigment that makes skin appear healthy and transparent, while having high brightness and dull color without turbidity or dullness. The sheet which can reflect light relates to the manufacturing method of a turquoise composite pigment.

Moreover, this invention relates to the coloring cosmetics containing the turquoise complex pigment which has the above-mentioned effect.

The skin color of the human body is not just a single color, but an achromatic color with a mixture of red, yellow, black, and blue.

Black or white skin color of the human body is a phenomenon caused by melanin pigment. Melanin is composed of a mixture of black and blue tones, not black, which is commonly known as black and blue blacks and yellow races.

This is because the color of the turquoise wavelength is properly distributed because the color of the skin actually looks healthy and elastic, and the reflectivity of the turquoise is high. According to the analysis of skin color by actual age, the skin color of 20s is higher than that of 30s, and the reflection ratio of cyan is higher. In the same age group, healthy people showed higher cyan reflectivity than general patients.

The turquoise reflection depends on the amount of melanin pigment in the human body, and the cosmetic industry tried to use melanin pigment using this principle. However, melanin pigment has poor light and heat stability and has a water-soluble dye property for use in makeup products. There is a problem that is difficult.

Therefore, in order to express the skin healthy and elastic, the color cosmetics are using a turquoise pigment that can increase the turquoise wavelength.

Such a cyan pigment is a pigment that absorbs a red wavelength of 610 ~ 750nm and reflects a cyan wavelength of 450 ~ 550nm, examples of such pigments are blue blue, ultramarine, blue No. 1 aluminum lake, chromium oxide, chromium hydroxide, blue No. 201, Blue 202, Blue 203, Blue 204, Green 3, Green 201, Green 202, Green 203 and the like.

In the color cosmetics, the above-mentioned cyan pigment and other pigments such as red, yellow, and black are mixed and used to exhibit skin color-like color.

White titanium dioxide is also used for the purpose of sun protection.

However, the color cosmetics using the pigment mixed by the simple mixing method as described above, the color becomes dark and dull when applied to the skin, the brightness and saturation are lowered, the image is raised or stained, healthy and clear skin The expression is not done properly. This is because simply mixing several pigments for the purpose of showing the skin color-like color is because of the dark and dull subtractive mixing in which the secondary color is lower in brightness and saturation than the primary color due to the color mixing principle.

Therefore, the present inventors can solve the above-mentioned problems by the additive mixing in which the brightness becomes higher than the primary colors of the secondary colors, unlike the conventional color cosmetics described above, and can provide a healthy and clear skin expression. The present invention has been studied in view of the fact that the color light mixture can be embodied by a coating method of forming a complex pigment by coating the above-mentioned cyan pigment on a skin-like pigment.

Accordingly, an object of the present invention is to provide a method of preparing a composite pigment that can use a turquoise pigment and skin color-like pigment that make the skin look healthy and transparent, and have no hazy or dull color, and have high brightness and reflect light of cyan. It is.

Another object of the present invention is to provide a color cosmetic containing a composite pigment obtained by the above method.

In the composite pigment according to the present invention, a method for preparing a composite pigment includes an inorganic pigment having a silica pigment containing an inorganic pigment by interfacial reaction between an inorganic pigment and a sodium silicate solution; The cyan pigment is coated with silica beads using a water soluble polymer.

The composite pigment obtained by the above-mentioned manufacturing method is a pigment in which a cyan pigment and a skin color-like pigment are mixed by a color light mixing method, and the brightness is increased and there is no cloudiness or dullness of the color. It can make your skin look healthy and transparent.

Hereinafter, the present invention will be described in more detail.

The method for producing a composite pigment according to the present invention is based on the surface properties of inorganic pigments. Specifically, inorganic pigments are entangled with each other by strong cohesion, or they have a constant charge on the pigment stigma.

That is, it is easy to coat the transparent film on the pigment surface, and the present invention takes advantage of the advantage to form a silica bead by coating a transparent film with a sodium silicate solution on the pigment surface for coloring cosmetics, and to the turquoise green color using a water-soluble polymer on the silica beads It is to provide a composite pigment by coating the pigment.

In order to embody the above method, the color difference was compared between when the color cosmetic pigment was simply mixed with the coating method.

[Reference Examples 1,2]

Reference Examples 1 and 2 were prepared by the method of preparing a skin color-like color base and coating it by adding a cyan pigment thereto.

[Manufacturing method]

(1) 1 to 4 are weighed and crushed twice in a BAN TAN MILL, followed by stirring in a RIBBON MIXER for 30 minutes.

(2) While uniformly dispersing the powder obtained in (1) in distilled water (5), 5-9 was added while gradually heating to 75-80 ° C, followed by stirring for 30 minutes.

(3) After finishing the coating in (2), wash with distilled water three times, remove the solution by centrifugation, and completely dry the contents in a dryer and grind once.

[Reference Examples 3 and 4]

In order to compare the difference with the color of the coated pigment obtained in Reference Examples 1 and 2, the pigment was prepared by a simple mixing method rather than a coating method.

[Manufacturing method]

After weighing 1 to 6 of the raw material, it is pulverized twice in a grinder and stirred in a mixer for 30 minutes.

[Test Example 1]

In order to compare the turbidity and color difference of the color of the pigment obtained in Reference Examples 1 to 4 using a color difference analyzer to compare the relative color differences for Reference Examples 3 and 4, the results are shown in Table 1.

ΔL。, a。, b。, DE Measurements: Spectro Guard II Color System (SUN SCIENTIFIC.USA), D65 light ΔV (difference in brightness), ΔC (difference in saturation) ) Measurement: Method by Munsell Symbol Value (HV)

The DE value of Reference Example 1 and Reference Example 1 of the above results can be seen that the color difference can be easily distinguished even with the naked eye, the cause of the value of △ a。, △ b。 is shown as a negative (-) 450 Reflectance spectra appear at ~ 550nm, indicating cyan reflection and scattering.

In addition, the difference in brightness can be confirmed by ΔV, ΔC, it can be seen that the reference example 1 is brighter than the reference example 3.

In addition, Reference Examples 4 and 2 using organic dyes (Blue No. 1 Aluminum Lake) are similar to the results of Reference Examples 3 and 1 above, but the DE value is 0.34, which is not easy to be distinguished by the naked eye. It can be seen that is reduced.

This reflects the fact that the coating of inorganic pigments is not properly performed in the case of the blue pigment No. 2 aluminum lake, which is an organic dye, because the charge is very small.

These results indicate that coating of inorganic pigments is easy, but coating of organic dyes and inorganic dyes is difficult. Therefore, organic dyes and inorganic dyes are required to be converted to a coating method other than charge bonding.

In addition, the pigment by the coating method according to the above-described manufacturing method has a particle size of 2μm on average, when the color cosmetics containing it is applied to the skin, the feeling of stiffness due to the strong cohesive force of the inorganic pigment, poor spreadability Have

In order to improve the usability, it is necessary to make the particles of the pigment into 6 to 10 탆.

In the present invention can be applied to a variety of turquoise-based organic pigments and inorganic pigments that require improvement in the above, in order to obtain a composite pigment with improved feeling by using the particle size of the composite pigment in the above range (6 ~ 10μm), silicic acid Primary coating of an inorganic pigment of skin-like color using a soda solution to produce silica beads having an average of 6-10 μm; A composite pigment is obtained by spraying the silica bead onto the silica beads by spraying a mixed solution obtained by dissolving a cyan pigment and a water-soluble polymer in distilled water.

This invention can obtain the outstanding effect also when using an organic pigment | dye.

Examples of the inorganic pigments used in the preparation of the composite pigments of the present invention include titanium dioxide, iron oxide, sensitizing, ultramarine, chromium oxide, chromium hydroxide, sintered products of various inorganic pigments, sieving pigments, and pearls. One or more selected mixtures are used.

In addition, examples of the blue pigment used in the method of manufacturing the composite pigment of the present invention include organic tar pigments and inorganic pigments having a reflection spectrum of 450 to 550 nm, and one or a mixture of two or more selected from these may be used. use.

The water-soluble polymer used to coat the above-mentioned blue green pigment on silica beads is derived from water-soluble cellulose, polysaccharide, hectorite, bentonite, natural water-soluble rubber, natural separator, and has a film forming ability. It is.

One or a mixture of two or more selected from these may be used.

Hereinafter, the color difference of the composite pigment obtained by the manufacturing method of this invention, and the pigment obtained by the conventional simple mixing method was compared.

Preparation Example 1

The method of obtaining silica beads by incorporating an inorganic pigment was prepared by the interfacial reaction method, which was secondarily coated with a water-soluble polymer in which dyes were dispersed to obtain a composite pigment.

The pigment base used for the raw material 5 was used by grinding twice after mixing 5.0% of titanium dioxide and 5.0% of iron oxides.

[Manufacturing method]

(1) The raw materials 2, 3, 4, and 5 were gradually added to the raw material 1 to be completely dispersed.

(2) Raw material 7 was added to raw material 6 to completely dissolve it, and then slowly added to (1) to confirm emulsification, followed by washing and drying.

(3) The raw materials 9 and 10 were gradually added, heating the raw material 8 to 70 degreeC, and the aqueous solution was obtained.

(4) The prepared (2) was placed in a mixer, and the aqueous solution of (3) was sprayed and sufficiently stirred for 30 minutes, followed by instant hot air drying (spray drying) to obtain a composite pigment.

[Comparative Production Example 1, 2]

In order to compare the particle size and coating effect of the composite pigment according to the preparation example, the composite pigment was obtained by a conventional simple mixing method.

[Manufacturing method]

The raw materials 1 to 4 were weighed, and then pulverized twice in a grinder and stirred for 30 minutes.

[Test Example 2]

Color difference, particle size, and shape of the composite pigments obtained in Preparation Examples 1 and 2 of the present invention and Comparative Preparation Examples 1 and 2 were measured by the same method as in Reference Example, and the results are shown in Table 2.

(Note) Form: Visual observation by optical microscope and SEM

Particle size: Particle size analyzer, Master Size-X (Particle Size Analyzer, Master Size-X (MALVERN, UK) In the above results, the composite pigments according to the manufacturing method of the present invention compared to the composite pigments by the conventional simple mixing method. High brightness, high saturation, high reflection and scattering rate at 450-550 nm, which is a blue-green wavelength, and the organic pigment blue No. 1 are well-coated.

In addition, the shape is spherical and the best feeling is 6 to 10μm, the spreadability and smooth feeling can be seen, and the DE value is larger than that of Preparation Example 2 in Preparation Example 1 is the iron oxide and titanium oxide sintered product It seems to have a color improvement.

On the other hand, Comparative Preparation Examples 1 and 2 have a weak wavelength of 450 to 550 nm, which is a blue-green wavelength, are amorphous in shape, and have small particles.

The composite pigment prepared by the above method is used as a pigment of the color cosmetics, the amount of use is preferably 0.01 to 20% by weight, and the formulation is not particularly limited. Examples of formulations include foundations, compacts, blushes, powder foundations, eye shadows, makeup bases, lipsticks, mascara, eye pencils, twin cakes or nail lacquers and the like.

Hereinafter, the example of the color cosmetics containing the composite pigment manufactured by the method of this invention is demonstrated concretely.

[Examples 1 and 2 and Comparative Examples 1 and 2 (Compact)]

[Test Example 3]

Examples 1 to 2 and Comparative Examples 3 to 4 were compared to evaluate the transparency, color expression, feeling of use, and spreadability of the 50 females in order to see the effect by the actual use, and averaged the values.

The results are shown in Table 3.

[Evaluation Method] 5 = very good; 4 = good; 3 = normal; 2 = bad; 1 = very bad

As shown in Table 3, Examples 1 and 2, which have high turquoise wavelength reflectances, exhibit healthy skin tones with transparent skin, whereas Comparative Examples 1 and 2 using pigments according to the conventional methods have poor transparency and color expression.

The usability and spreadability which compared usability also show that Examples 1 and 2 by this invention show the outstanding effect compared with Comparative Examples 1 and 2 by the conventional method.

Claims (7)

Interfacial reaction between the inorganic pigment and the sodium silicate solution to form silica beads incorporating the inorganic pigment; A method for producing a composite pigment, characterized in that the coating solution obtained by dissolving a cyan pigment in a distilled water together with a water-soluble polymer is sprayed onto the silica beads. The inorganic pigments according to claim 1, wherein the inorganic pigment is titanium dioxide, iron oxides, bluish blue, ultramarine blue, chromium oxide, chromium hydroxide, ferric oxide, titanium dioxide sintered product, yellow iron oxide, titanium dioxide sintered product, titanium dioxide, blue sintered product, 1 selected from the group consisting of silicic anhydride, talc, mica, sericite, kaolin, zinc oxide, nylon-6, nylon-12, polymethylmethacrylate, polyurethane, polyethylene, calcivinyl, mica titanium, bismuthoxychloride A method for producing a composite pigment, characterized in that the species or a mixture of two or more. According to claim 1, cyan-based analyte is blue, ultramarine, chromium oxide, chromium hydroxide, blue No. 1 aluminum lake, blue No. 201, blue No. 202, blue No. 203, blue No. 204 having a reflection spectrum of 450 ~ 550nm , Green 3, yellow 201, green 202, green 203, a method for producing a composite pigment, characterized in that one or two or more selected from the mixture. The method of claim 1, wherein the water-soluble polymer is one or two selected from hydroxymethyl cellulose, carboxy methyl cellulose, hydroxypropyl cellulose, chitin liquid, quaternium-18-hectorite, sterakconium bentonite Method for producing a composite pigment, characterized in that the mixture of more than one species. The method of claim 1, wherein the size of the composite pigment is 6 to 10μm. A coloring pigment prepared by the method according to claim 1 to 5 in an amount of 0.01 to 20% by weight based on the total amount of the composition. The color cosmetic according to claim 6, wherein the color cosmetic has a formulation of a foundation, compact blusher, powder foundation, eye shadow, makeup base, lipstick, mascara, eye pencil, twin cake or nail lacquer.