Cosmetic composition

Abstract

Disclosed is a cosmetic composition capable of exhibiting various colors, including red, yellow and blue colors. The disclosed cosmetic composition comprises a red, yellow or blue pearlescent pigment prepared by coating a natural pigment on a matrix, so that it is capable of exhibiting various colors.

Claims

1. A cosmetic composition, comprising: a pigment, wherein the pigment comprises: a matrix; and a mixture of a vegetable natural pigment and a metal coated on the matrix; a resin; and a solvent, wherein the cosmetic composition is capable of exhibiting various colors, wherein the mixture of the vegetable natural pigment and the metal is coated on the matrix by co-precipitating a dye/metal salt mixture solution comprising: water; the vegetable natural pigment, wherein an amount of the vegetable natural pigment ranges from 3 parts by weight to 30 parts by weigh based on 100 parts by weight of the water; and a metal salt, wherein an amount of the metal salt ranges from 3 parts by weight to 30 parts by weigh based on 100 parts by weight of the water, and the metal salt is at least one selected from the group consisting of BaCl.sub.2, CaCl.sub.2, AlCl.sub.3, SnCl.sub.4, TiCl.sub.4, TiOCl.sub.2, TiOSO.sub.4, FeCl.sub.3, FeSO.sub.4, SiCl.sub.4, ZrOCl.sub.2, Na.sub.2O.SiO.sub.2.5H.sub.2O, MnCl.sub.2, MgCl.sub.2 and CoCl.sub.2, and wherein the dye/metal salt mixture solution is co-precipitated by introducing a basic solution into the dye/metal salt mixture.

2. The cosmetic composition of claim 1, wherein the pigment is contained in an amount of 2-50 wt % based on the total weight of the composition.

3. The cosmetic composition of claim 1, wherein the cosmetic is an oily cosmetic composition in which the solvent is oil and the resin is an oil-soluble resin.

4. The cosmetic composition of claim 1, wherein the cosmetic composition is an aqueous cosmetic composition in which the solvent is water and the resin is a water-soluble resin.

5. The cosmetic composition of claim 1, wherein the matrix is coated with a metal oxide.

6. The cosmetic composition of claim 5, wherein the metal oxide comprises one or more of iron oxide, titanium dioxide and tin dioxide.

7. The cosmetic composition of claim 1, wherein the cosmetic composition is a composition for mascara, eyeshadow, liquid eyeliner, gel-type eyeliner, nail enamel, foundation, lipstick, lip gloss, cosmetic cream, makeup foundation, eye pencil, blusher, or emulsion.

8. The cosmetic composition of claim 1, wherein the matrix is at least one selected from the group consisting of synthetic mica, natural mica, flaky glass, flaky iron oxide, flaky alumina, flaky silica, talc, and bismuth.

9. The composition of claim 1, wherein the matrix is at least one selected from the group consisting of flaky iron oxide, talc, and bismuth.

10. The composition of claim 1, wherein the vegetable natural pigment is derived from at least one selected from the group consisting of Caesalpinia sappan, Gardenia florida, Indigo pulverata, indigo, Commelina communis, iris, madder, safflower, sappan wood, logwood, gromwell, persimmon, apricot trees, plum trees, Korean spindle trees, ginger trees, radix Euphorbiae kansui, Althaea rosea, Polygonum cuspidatum, wild apricot trees, Taxus cuspidata, Schizandra chinensis, camellia, grapes, brush trees, gardenia, Curcuma longa, onion peels, Carthamus yellow, Coptis japonica root, Phellodendron amurense bark, clove, pomegranate, reed, Sophorae flus, Fraxinus rhynchophylla, Rhus verniciflua, old trees, Sorbus alnifolia, garden-bell tree bark, wisteria flowers, alders, chestnuts, and oak trees.

Description

EXAMPLES

Example 1

(1) (1) Preparation of Red Natural Pigment

(2) Natural dye extracted from Caesalpinia sappan (one or more selected from among Caesalpinia sappan bark extract and Caesalpinia sappan stem powder) that is a natural dye-containing material was heated in deionized water (or organic solvent) to extract a dye solution which was then concentrated and dried in a vacuum, thereby preparing dye. 10 parts by weight of the Caesalpinia sappan dye was added to a 2-L beaker, and 100 parts by weight and 30 parts by weight of CaCl.sub.2 were added thereto, followed by stirring at 200 rpm. At this time, the reaction temperature was set at 40 C., and potassium hydroxide was added. The pH was adjusted to 7, and the solution was stirred. When a precipitate started to be formed during stirring, it was dehydrated, dried and powdered, thereby obtaining a pigment.

(3) (2) Preparation of Red Natural Pigment Ink

(4) 140 parts by weight of deionized water and 60 parts by weight of the Caesalpinia sappan pigment were added to a 500 mL beaker, followed by milling at 70 rpm for 12 hours, thereby forming a Caesalpinia sappan pigment.

(5) (3) Preparation of Pearlescent Pigment Comprising Red Natural Pigment Coated on Matrix

(6) Meanwhile, 100 parts by weight of metal oxide-coated flakes and 1000 parts by weight of deionized water were added to a 2 L beaker, and then dispersed at 400 rpm, thereby forming a matrix suspension. Herein, the reaction was performed at normal temperature.

(7) The Caesalpinia sappan pigment was adjusted to a pH of 11 by adding potassium hydroxide thereto.

(8) The matrix suspension, the Caesalpinia sappan pigment and CaCl.sub.2 were added to a 2 L beaker, and the mixture solution was adjusted to a pH of 5.

(9) After the Caesalpinia sappan pigment was coated on the flakes, stirring was performed for about 10 minutes, and then the reaction was terminated.

(10) After coating with the red Caesalpinia sappan pigment, the resulting material was washed, dehydrated, and dried at 80 C., thereby preparing a red pearlescent pigment coated with the red Caesalpinia sappan pigment.

(11) After completion of the drying process, aggregated particles formed during the reaction were removed by screening through a 325-mesh sieve.

Example 2

(12) (1) Preparation of Yellow Natural Pigment

(13) Natural dye extracted from Gardenia florida that is a natural dye-containing material was heated in deionized water (or organic solvent) to extract a dye solution. The extracted dye solution was concentrated and dried in a vacuum, thereby preparing dye. 20 parts by weight of the Gardenia florida dye was added to a 2 L beaker, and 100 parts by weight of deionized water and 30 parts by weight of AlCl.sub.3 were added thereto, followed by stirring at 200 rpm. At this time, the reaction temperature was set at 60 C., and sodium hydroxide was added. The pH was adjusted to 7, and the solution was stirred. When a precipitate started to be formed during stirring, it was dehydrated, dried and powdered, thereby obtaining a pigment.

(14) (2) Preparation of Yellow Natural Pigment Ink

(15) 140 parts by weight of deionized water and 60 parts by weight of the Gardenia florida pigment were added to a 500 mL beaker, followed by milling at 70 rpm for 12 hours, thereby forming a Gardenia florida pigment.

(16) (3) Preparation of Pearlescent Pigment Using Yellow Natural Pigment

(17) Meanwhile, 100 parts by weight of metal oxide-coated flakes and 1000 parts by weight of deionized water were added to a 2 L beaker, and then dispersed at 400 rpm, thereby forming a matrix suspension. Herein, the reaction was performed at normal temperature.

(18) The Gardenia florida pigment was adjusted to a pH of 11 by adding potassium hydroxide thereto.

(19) The matrix suspension, the Gardenia florida pigment and CaCl.sub.2 were added to a 2-L beaker, and the mixture solution was adjusted to a pH of 5.

(20) After the Gardenia florida pigment was coated on the matrix, stirring was performed for about 10 minutes, and then the reaction was terminated.

(21) After coating with the yellow Gardenia florida pigment, the resulting material was washed, dehydrated, and dried at 80 C., thereby preparing a yellow pearlescent pigment coated with the yellow Gardenia florida pigment.

(22) After completion of the drying process, aggregated particles formed during the reaction were removed by screening through a 325-mesh sieve.

Example 3

(23) (1) Preparation of Blue Natural Pigment/Natural Pigment Ink

(24) Natural dye extracted from Indigo pulverata that is a natural dye-containing material was heated in deionized water (or organic solvent) to extract a dye solution. The extracted dye solution was concentrated and dried in a vacuum, thereby preparing a pigment. 20 parts by weight of the Indigo pulverata pigment was added to a 250-ml ball milling bottle, and 80 parts by weight of deionized water was added thereto, followed by ball milling for 6 hours.

(25) (2) Coating of Matrix with Blue Natural Pigment

(26) Meanwhile, 30 parts by weight of metal oxide-coated flakes and 22.5 parts by weight of 20 vol % Indigo pulverata pigment were added to a 2-L beaker, and then deionized water was added thereto to a total volume of 500 parts by weight, and the mixture was dispersed at 400 rpm, thereby forming a matrix suspension. Herein, the reaction was performed at normal temperature.

(27) A 5 vol % AlCl.sub.3 solution was added slowly to the matrix suspension, followed by stirring for 10 minutes, thereby adjusting the pH of the suspension to 7.0. Next, 5 vol % CaCl.sub.2 solution was added slowly, followed by stirring for 10 minutes, thereby adjusting the pH to 4.0. Then, 15 vol % HCl solution was added slowly, followed by stirring for 30 minutes, thereby adjusting the pH to 2.2. Finally, 15 vol % KOH solution was added slowly, followed by stirring for 30 minutes, thereby adjusting the pH to 4.3.

(28) After the Indigo pulverata pigment was coated on the flakes, stirring was performed for about 10 minutes, and then the reaction was terminated.

(29) After coating with the blue Indigo pulverata pigment, the resulting material was washed, dehydrated, and dried at 80 C., thereby preparing a yellow pearlescent pigment coated with the blue Indigo pulverata pigment.

(30) After completion of the drying process, aggregated particles formed during the reaction were removed by screening through a 325-mesh sieve.

Example 4

(31) Preparation of Pearlescent Pigment Comprising Metal Oxide Coated on Synthetic Mica

(32) 100 g of synthetic mica flakes having a particle size of 5-50 m were added to 2 L of deionized water, and then stirred to form a slurry. Next, the slurry was heated to 75 C., and when it reached a temperature of 75 C., a HCl solution was added to adjust the pH of the slurry to 3.5.

(33) Next, 600 g of a FeCl.sub.3 solution (FeCl.sub.3 content: 20.0 wt %) was added to the slurry at a constant rate over 5 hours while the pH of the slurry was maintained at a constant pH of 3.5 with a 10-50% NaOH dilution. After addition of the FeCl.sub.3 solution, the slurry solution was refluxed for 10 minutes, and then adjusted to a pH of 6.8 by use of a 10-30% NaOH dilution.

(34) Next, 400 g of a MgO.SiO.sub.2 solution (MgO.SiO.sub.2 content: 15.0 wt %) was added to the slurry at a constant rate over 2 hours while the slurry was maintained at a constant pH of 6.8 with a HCl solution. Thereafter, the slurry was adjusted to a pH of 3.5 by addition of a HCl solution, and then additionally stirred under reflux for 15 minutes.

(35) Next, 570 g of a FeCl.sub.3 solution (FeCl.sub.3 content: 20.0 wt %) was added to the slurry at a constant rate over about 5 hours while the slurry was maintained at a pH of 3.5 with a 10-50% NaOH dilution. After addition of the FeCl.sub.3 solution, the slurry was refluxed with stirring for 30 minutes. After reflux, the slurry was adjusted to a pH of 8.0-8.5 by addition of a 10-30% NaOH dilution, and then stirred under reflux for 30 minutes. After completion of the stirring, the resulting slurry was filtered, dehydrated, washed twice with deionized water, and dried at 120 C. for 10 hours, thereby obtaining an intermediate product as powder.

(36) Finally, 11 g of the powder was calcined at 850 C. for 30 minutes to afford red pearlescent pigment powder.

Example 5

(37) Preparation of Yellow Pigment Comprising Metal Oxide Coated on Glass Flakes

(38) 50 parts by weight of glass flakes having a particle size ranging from 40 m to 250 m and a thickness of 5 m were added to a 2 L beaker, and then deionized water was added thereto to a total weight of 1000 parts by weight. Then, the flakes were dispersed at 300 rpm to form a matrix suspension.

(39) Next, the matrix suspension was heated to 75 C., and 5% hydrochloric acid solution was added to adjust the pH of the matrix suspension to 1.9. Then, 20 ml of a 11% SnCl.sub.4 solution was added to the matrix suspension while the pH of the matrix suspension was maintained at a pH of 1.9 with 20% NaOH solution.

(40) After addition of the SnCl.sub.4 solution, the suspension was stirred for 30 minutes, and then 100 ml of 20% TiCl.sub.4 solution was added to the suspension while the pH of the suspension was maintained at a pH of 1.9 with a 20% NaOH solution.

(41) After completion of the reaction, the resulting solution was stirred for 30 minutes, and then washed and dehydrated twice, followed by drying at 90 C. for 2 hours.

(42) The dried material was calcined at 550 C. for 30 minutes, and then aggregated particles formed during the reaction were removed by screening through a 200-mesh sieve.

Example 6

(43) Preparation of Blue Pearlescent Pigment Comprising Metal Oxide Coated on Synthetic Mica Particles

(44) To prepare a blue pearlescent pigment comprising a metal oxide coated on synthetic mica particles, synthetic mica was powdered and sieved, thereby obtaining synthetic mica particles having an average particle size of 12 m. 100 parts by weight of the synthetic mica particles were added to a beaker, and then deionized water was added thereto to a total weight of 1000 parts by weight. Then, the mica particles were dispersed at 300 rpm to form a matrix suspension. Next, the matrix suspension was heated to 80 C.

(45) The matrix suspension was adjusted to a pH of 2.2 using a 5% hydrochloric acid solution, and then refluxed for 10 minutes. Next, 30 ml of a 30% SnCl.sub.2 solution was added to the matrix suspension while the pH of the suspension was maintained at 2.2 with a 20% NaOH solution.

(46) After addition of the SnCl.sub.2 solution, the suspension was stirred for 30 minutes, and then 120 ml of a 40% TiOCl.sub.2 solution was added to the suspension while the pH of the suspension was maintained at 2.2 with a 20% NaOH solution.

(47) After addition of the TiOCl.sub.2 solution, the suspension was refluxed for 10 minutes, and then adjusted to a pH of 8 by addition of a 20% NaOH aqueous solution. Next, the suspension was adjusted to a pH of 1.7 by addition of a 10% HCl aqueous solution, and then SnCl.sub.2 and TiOCl.sub.2 aqueous solutions were added to the suspension under the same conditions as described above. It was observed that the color changed in the order of yellow, red, violet and blue according to the thickness of the titanium dioxide, and the reaction was stopped when the color reached blue.

(48) After completion of the reaction, the reaction solution was stirred for 30 minutes, and then washed and dehydrated twice, followed by drying at 100 C. for 2 hours. The dried material was calcined in an electric furnace at 800 C., thereby obtaining a blue pigment showing a high color saturation. Next, aggregated particles formed during the reaction were removed by screening through a 325-mesh sieve.

Application Examples

(49) The pearlescent pigments prepared according to the Examples of the present invention may be used as pigments in cosmetic products, including mascara, eyeshadow, eyeliner (liquid or gel), and nail enamel.

(50) Tables 1 to 5 below show the compositions of mascara, eyeshadow, liquid eyeliner, gel-type eyeliner and nail enamel, which contain the pigment preparing to the Example of the present invention.

(51) TABLE-US-00001 TABLE 1 Component Content Cetearyl alcohol 2.00 PEG 20 glyceryl stearate 1.50 Beeswax 11.00 Stearic acid 8.00 Black iron oxide 3.00 Preservative 0.50 Pearlescent pigment 7.00 Butylene glycol 2.00 Acrylate copolymer 30.00 Polyvinyl alcohol 3.00 Triethanolamine 3.00 Purified water 29.00 Sum 100.00

(52) Table 1 above shows the composition of a mascara comprising the pigment prepared according to the Example 1.

(53) TABLE-US-00002 TABLE 2 Component Content Pearlescent pigment 10.0 Talc 68.40 Mica 7.20 Zinc stearate 5.40 Silica 4.50 Methylmethacrylate copolymer 2.88 Titanium dioxide 1.44 Aluminum stearate 0.09 Triethoxycaprylylsilane 0.05 Dimethicone 0.04 Sum 100.00

(54) Table 2 above shows the composition of an eyeshadow comprising the pigment prepared according to Example 2.

(55) TABLE-US-00003 TABLE 3 Component Content Purified water 32.87 Butylene glycol 1.00 Sodium polyacrylate 1.00 Disodium EDTA 0.03 Black iron oxide 10.00 Pearlescent pigment 14.00 Silica 0.50 Preservative 0.30 Silicone oil 2.00 Caprylic/capric triglyceride 2.00 Diisostearyl maleate 2.00 Cetearyl olivate/sorbitan olivate 2.00 Polyoxyethylene lauryl ether 2.00 Preservative 0.30 Acrylate copolymer 30.00 Sum 100.00

(56) Table 3 above shows the composition of a liquid eyeliner comprising the pigment prepared according to Example 3.

(57) TABLE-US-00004 TABLE 4 Component Content Ceresin 18.00 Sodium polyacrylate 3.00 Silicone acrylate 2.00 Cyclomethicone 10.70 Silicone oil 3.00 Preservative 0.30 Isodecane 10.00 Caprylic/capric triglyceride/ 33.00 stearalkonium hectorite/propylene carbonate Pearlescent pigment 20.00 Sum 100.00

(58) Table 4 above shows the composition of a gel-type eyeliner comprising the pigment prepared according to Example 4.

(59) TABLE-US-00005 TABLE 5 Component Content Pearlescent pigment 3.00 Nitrocellulose ( sec) 10.00 Alkyd resin 10.00 Acetyl tributyl citrate 2.00 Ethyl acetate 20.00 Butyl acetate 15.00 Ethyl alcohol 5.00 Toluene 35.00 Sum 100.00

(60) Table 5 above shows the composition of a nail enamel comprising the pigment prepared according to Example 5.

(61) The characteristics (including spreadability, hiding power, color and matte feeling) of the mascara, eyeshadow, liquid eyeliner, gel-type eyeliner and nail enamel prepared according to the compositions shown in Tables 1 to 5 above are shown in Table 6 below.

(62) TABLE-US-00006 TABLE 6 Kind of Hiding Matte cosmetic Spreadability power Color feeling Example 1 Mascara Example 2 Eyeshadow Example 3 Eyeliner (liquid) Example 4 Eyeliner (gel) Example 5 Nail enamel X (score of less than 60): poor; (score of 60-69): moderate; (score of 70-79): relatively good; (score of 80-89): excellent; : (score of 90-100): very excellent.

(63) To evaluate the spreadability, hiding power, color and matte feeling of each cosmetic product, sensory evaluation of each cosmetic product (score: 0 to 100) was performed by 40 women panels (aged 20 to 40 years), and the evaluation scores were averaged. The results of the evaluation are shown in Table 6 above.

(64) Referring to Table 6 above, it can be seen that, when the pigment prepared in the Example is used as a cosmetic pigment, it shows excellent spreadability, hiding power, transparency and color. This suggests that the pearlescent pigment according to the present invention can exhibit performance equal to or higher than cosmetic pigments that are conventionally used.

(65) Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.