JP5156182B2 - Cosmetic composition - Google Patents

Description

  The present invention relates to a cosmetic composition containing a petal-like porous spherical calcium carbonate.

  More specifically, the present invention has a high oil-absorbing performance and water retention function due to the porosity by blending the petal-like porous spherical calcium carbonate, and the sebum due to sebum by irregularly reflecting the coating surface by the petal-like form The present invention also relates to a cosmetic composition having an excellent feeling of use while suppressing the texture and preventing feeling of stickiness and stickiness.

In general, inorganic powders such as extender pigments, white pigments, colored pigments, and pearl pigments are used for foundations. For extender pigments, calcium carbonate, talc, kaolin, mica, sericite, etc. are used, but there are many variations in particle diameter, and when applied, the thickness becomes non-uniform so that `` elongation '', `` attachment '' There is a problem with the feeling of use. In addition, many of these inorganic powders have high hiding properties, and there is a problem that the skin cannot have a natural transparency. Also, in order to prevent the feeling of stickiness, bulkiness, and stickiness, it absorbs excess oil and requires moisture retention, but conventional body pigments have sufficient oil absorption and moisture retention when added in small amounts. I can't show it. Anhydrous silica is widely used as a thickener and scrub agent added to facial cleansers and massage creams, etc., and has excellent physical properties. In addition, those having good dispersibility with uniform particle diameters are expensive, which is problematic in terms of cost.
On the other hand, in recent years, a novel spherical calcium carbonate has been proposed (Patent Document 1).
Japanese Patent No. 3376826

  The present invention comprises a porous spherical calcium carbonate having a specific form and particle size, excellent dispersibility, petal-like porousness, transparency, high oil absorption performance and moisture retention performance. Good elongation at the time of application, natural transparency, prevents excess oil from sebum, prevents bulkiness, stickiness, etc. A cosmetic composition capable of exerting a sticky effect or a scrub effect is provided.

As a result of earnest research to solve the above problems, the present inventor has high oil absorption performance and moisture retention performance because the petal-like porous spherical calcium carbonate has a specific particle size, good dispersibility, and is porous. The cosmetic composition comprising and having a clear feeling has good elongation at the time of application, natural transparency, and excellent oil absorption performance and moisture retention performance. The inventors have found that the feeling of stickiness is prevented, and have completed the present invention.
That is, the present invention is a cosmetic composition containing petal-like porous spherical calcium carbonate. Preferably, it is a cosmetic composition characterized by containing petal-like porous spherical calcium carbonate having a particle size of 1 to 20 μm.
The present invention is a cosmetic composition containing petal-like porous calcium carbonate and other powders. The present invention is a cosmetic application of petal-like porous calcium carbonate.

The petal-like porous spherical calcium carbonate-containing cosmetic composition of the present invention has less unevenness, a natural finish, and excellent usability. In addition, it has little cosmetic disintegration over time on the skin after use and is excellent in cosmetic effect with covering properties. Further, as a face wash, it has a scrub effect and a good cleanliness.
Moreover, as a lotion and emulsion, it is excellent in the effect which suppresses the stickiness by sebum by absorbing the excess sebum which comes out on skin after use. Furthermore, the clay pack has an adsorptive power and has an effect of removing dirt and sebum from pores.

The petal-like porous spherical calcium carbonate of the present invention is carbonated by adding a condensed phosphate compound under basic calcium carbonate production conditions, temporarily suspending the carbonation when basic calcium carbonate is produced, and newly producing lime milk. And the condensed phosphorylated compound are added, carbonation is continued, and carbonation is continued until basic calcium carbonate is formed, and the reaction is repeated 2 to 10 times to the desired particle size.
By changing the reaction conditions such as the reaction temperature and carbonation rate after the second time, the petal-like porous spherical calcium carbonate can change the shape and size of the petals or the pore diameter and pore volume of the porous. it can. The petal-like porous spherical basic calcium carbonate emulsion thus produced is filtered and dried in a vacuum dryer, and then carbonized at a carbon dioxide gas temperature of 200 to 700 ° C. to produce petal-like porous spherical calcium carbonate. Synthesize. (Patent No. 3376826, JP2003-54943, JP2003-146656)

  The petal-like porous spherical calcium carbonate thus obtained has a sharp particle size distribution width, excellent dispersibility, good elongation at the time of coating, and is porous, so it has a natural transparency and is high. By blending in cosmetics, the cosmetic composition has an oil-absorbing performance and prevents excess sebum from being segregated, and prevents a feeling of stickiness and stickiness, and has an excellent feeling of use. In addition, petal-like porous spherical calcium carbonate has a high thickening effect, so it can be prevented from separating moisture and oil by blending it into the water phase or oil phase of creams, and it can also carry fragrances etc. It is. Furthermore, since the petal-like porous spherical calcium carbonate has a spherical shape and the particle diameter can be controlled, it can be used as a scrub agent that does not damage the skin, such as a facial cleanser, a massage cream, and the like.

  Petal-like porous calcium carbonate can be widely applied to cosmetics containing powder, and can be used in cosmetics by the same blending method as conventional pigments. For example, makeup cosmetics such as foundation, lipstick, eye shadow, eyeliner, lasting powder, face powder and the like can be mentioned. It can also be used in massage creams, cleansing creams, facial soaps, body soaps, etc. by applying the thickening and scrubbing effects. The blending amount of the petal-like porous spherical calcium carbonate in the cosmetic can be selected according to the purpose, but is generally 0.5 to 50% by weight, preferably 2 to 30% by weight. If it is less than 0.5% by weight, a sufficient effect cannot be expected, and if it exceeds 50% by weight, the amount of water absorption and oil absorption becomes too high and the feeling of use is lowered.

  Hereinafter, the present invention will be described in detail based on examples, but the present invention is not limited thereto.

(Synthesis method of petal-like porous spherical calcium carbonate)
Carbonization was carried out by introducing 25% by volume of carbon dioxide (hereinafter simply referred to as “carbon dioxide”) at 600 ml / min while stirring 6% by weight of 400 ° C. lime milk at 15 ° C. Simultaneously with the introduction of carbon dioxide, a solution prepared by dissolving 0.24 g of sodium hexametaphosphate in 15 ml of water was added to the lime milk. After 45 minutes from the start of the reaction, the electric conductivity dropped 6.0 mS / cm from before the reaction, so the introduction of carbon dioxide gas was stopped. The carbonation rate of this lime milk was 63%. The solid matter was filtered from the lime milk by an ordinary method, washed with alcohol and dried at 110 ° C. for 12 hours. This dried product was found to be a basic calcium carbonate and calcite as a result of powder X-ray diffraction, and as a result of observation by a scanning electron microscope, had a plate-like structure having a thickness of 0.2 μm and a particle diameter of 1 μm. 200 ml of 6% by weight lime milk was added to 200 ml of this lime milk solution, and carbonation was carried out by introducing carbon dioxide gas at 300 ml / min while stirring. Simultaneously with the introduction of carbon dioxide, a solution prepared by dissolving 0.10 g of sodium hexametaphosphate in 15 ml of water was added to the lime milk. After 23 minutes from the start of the reaction, the electrical conductivity dropped 6.0 mS / cm from before the reaction, so the introduction of carbon dioxide gas was stopped. The carbonation rate of this lime milk was 61%. This dried product is a powder X-ray diffraction result, basic calcium carbonate and calcite, a scanning electron microscope observation result, a plate-like structure having a thickness of 0.3 μm and a particle diameter of 2 μm is agglomerated radially and has a spherical shape of 5 μm Particles were formed. 200 ml of 6% by weight lime milk was added to 200 ml of this lime milk solution, and carbonation was carried out by introducing carbon dioxide gas at 300 ml / min while stirring. Simultaneously with the introduction of carbon dioxide, a solution prepared by dissolving 0.10 g of sodium hexametaphosphate in 15 ml of water was added to the lime milk. After 22 minutes from the start of the reaction, the electric conductivity dropped 6.0 mS / cm from before the reaction, so the introduction of carbon dioxide gas was stopped. The carbonation rate of this lime milk was 62%. This dried product is powder X-ray diffraction results, basic calcium carbonate and calcite, and scanning electron microscope observation results, a plate-like structure having a thickness of 0.3 to 0.5 μm and a particle diameter of 3 to 4 μm is aggregated radially. 8 μm spherical particles were formed. 200 ml of 6% by weight lime milk was added to 200 ml of this lime milk solution, and carbonation was carried out by introducing carbon dioxide gas at 300 ml / min while stirring. Simultaneously with the introduction of carbon dioxide, a solution prepared by dissolving 0.08 g of sodium hexametaphosphate in 15 ml of water was added to the lime milk. After 23 minutes from the start of the reaction, the electrical conductivity dropped 6.0 mS / cm from before the reaction, so the introduction of carbon dioxide gas was stopped. The carbonation rate of this lime milk was 61%. X-ray powder diffraction results of this dried product, basic calcium carbonate and calcite, a scanning electron microscope observation result, a plate-like structure having a thickness of 0.4 to 0.6 μm and a particle diameter of 4 to 6 μm is aggregated radially. 10 μm spherical particles were formed. 200 ml of 6% by weight lime milk was added to 200 ml of this lime milk solution, and carbonation was carried out by introducing carbon dioxide gas at 300 ml / min while stirring. Simultaneously with the introduction of carbon dioxide, a solution prepared by dissolving 0.08 g of sodium hexametaphosphate in 15 ml of water was added to the lime milk. After 22 minutes from the start of the reaction, the electric conductivity dropped 6.0 mS / cm from before the reaction, so the introduction of carbon dioxide gas was stopped. The carbonation rate of this lime milk was 63%. This dried product is a powder X-ray diffraction result, basic calcium carbonate and calcite, and a scanning electron microscope observation result, a plate-like structure having a thickness of 0.5 to 0.8 μm and a particle diameter of 12 to 14 μm is aggregated radially. 12 μm spherical particles were formed. 28 g of this dried product was passed through a 104 μm sieve, filled in a cylindrical container, mounted in a vertical electric furnace heated to 550 ° C., and carbonized with 100% carbon dioxide gas from the bottom at 25 ml / min for 20 hours. As a result of X-ray diffraction after completion of carbonation, only calcite was observed, and no other crystal structure was observed. As a result of scanning electron microscope observation, a plate-like structure having a thickness of 0.5 to 0.8 μm and a particle diameter of 2 to 4 μm aggregated radially to form spherical particles of 12 μm. (Figure 1)

Hereinafter, the present invention will be described in detail by way of examples and comparative examples. Moreover, the evaluation method with respect to each characteristic of the cosmetics produced by the Example and the comparative example is shown below. In addition, the cosmetics of this invention are not limited to embodiment mentioned below, Of course, a various change can be added in the range which does not deviate from the summary of this invention.
In the comparative example, petal-like spherical porous calcium carbonate formulated for each item was replaced with normal calcium carbonate to prepare an adjusted sample, which was used as a comparative example.

“Evaluation of usefulness” for Examples 1 to 4
Each evaluation item was evaluated by 10 dedicated panelists. (However, panelists may overlap depending on the item)
“Coating power” → “Smoothness”, “Smoothness”, etc. “Natural” → Natural finish, natural feeling (transparency)
"Usage feeling" → Spread, ease of application, non-stickiness, etc. "Messaging" → Sewing with sebum (change over time)
About the above, it evaluated from "good" to "bad" according to five steps of 5 to 1, and it was set as the evaluation result with the average score of all the panelists. Therefore, the higher the score, the higher the usefulness for the evaluation item.
“Usefulness Evaluation” for Example 5
Evaluation was carried out by 10 dedicated panelists.
“Bubbling” → “Scrubbing effect” such as bubbling in a short period of time, foam persistence → moderate load on the skin, massage effect “cleaning degree” → “good” to “bad” from 5 regarding the degree of dirt removal after face washing Evaluation was performed according to the five stages of 1 and the evaluation result was obtained by using the average score of all panelists. Therefore, the higher the score, the higher the usefulness for the evaluation item.
“Usefulness Evaluation” for Examples 6 and 7
Evaluation was carried out by 10 dedicated panelists. (However, panelists may overlap.)
“Natural” → Natural finish “Usage” → Elongation, ease of application, non-stickiness, etc. “Change with time” → Non-stickiness due to sebum over time, etc. From “Good” to “Bad” from 5 Evaluation was performed according to the five stages of 1 and the evaluation result was obtained by using the average score of all panelists. Therefore, the higher the score, the higher the usefulness for the evaluation item.
“Evaluation of usefulness” for Example 8
Evaluation was carried out by 10 dedicated panelists.
“Usage” → Ease of spreading and uniform thickness “Adhesion” → Close contact with the skin in the pack “Tightness” → Less stickiness after use “Adsorption” → Pore etc. The degree of dirt removal was evaluated from “good” to “bad” according to 5 to 5 grades, and the average score of all panelists was used as the evaluation result. Therefore, the higher the score, the higher the usefulness for the evaluation item.

Example 1
Powder foundations having the following compositions were prepared together with Comparative Example 1 by the production method shown below, and the results are shown in Table 1. In the following examples, each comparative example is a case where petal-like spherical porous calcium carbonate was not blended.
(2 way powder foundation)
A two-way powder foundation having the following composition was prototyped. (Silicone-treated products treated with methylhydrogenpolysiloxane)
(Composition) (wt%)
(1) Silicone-treated sericite is set to 100.0.
(2) Silicone-treated mica 10.0
(3) Silicone-treated talc 20.0
(4) Petal-like spherical porous calcium carbonate 5.0
(5) Silicone-treated titanium oxide 10.0
(6) Silicone-treated plate-like barium sulfate 10.0
(7) Magnesium stearate 2.0
(8) Nylon powder 10.0
(9) Bengala 0.5
(10) Yellow iron oxide 1.0
(11) Black iron oxide 0.02
(12) Dimethylpolysiloxane 8.0
(13) Isononyl isononanoate 2.0
(14) Preservative Appropriate amount (15) Fragrance A small amount (prototype method) Components (1) to (11) are mixed in a high-speed mixer, and components (12) to (14) are mixed and dissolved at 40 ° C. In addition, mix evenly. The component (15) is added to the mixture and mixed, and then the product pulverized by a pulverizer is passed through a sieve. This was compression molded into a metal pan to obtain a solid powder foundation. Useful effects using this solid powder foundation are shown in Table 1.

Example 2
Example 2 (Cream Foundation)
An emulsified foundation having the following composition was prepared.
(Ingredient) (wt%)
(1) Stearic acid 4.5
(2) Self-emulsifying glyceryl monostearate 1.5
(3) Cetanol 1.5
(4) Squalane 7.0
(5) Liquid paraffin 8.0
(6) Soybean phospholipid 0.2
(7) Petal-like spherical porous calcium carbonate 3.0
(8) Titanium oxide 8.0
(9) Talc 3.0
(10) Bengala 2.0
(11) Yellow iron oxide 4.5
(12) Black iron oxide 0.1
(13) Triethanolamine 2.2
(14) Propylene glycol 5.0
(15) Sorbit 2.0
(16) Adjust to 100.0 with purified water.
(17) Preservative Appropriate amount (18) Fragrance A small amount (manufacturing method) components (7) to (12) are mixed in a high-speed mixer and pulverized in a pulverizer. Separately, the oil phase components (1) to (6) are mixed and dissolved by heating, and the mixed and pulverized pigment is added and dispersed, and then heated to 75 ° C. The water phase components (13) to (17) mixed and dissolved at 80 ° C. are added to the previously prepared oil phase with stirring and emulsified. This was cooled with stirring, component (18) was added at 40 ° C., and the mixture was cooled with stirring to produce a creamy foundation. Useful effects using this creamy foundation are shown in Table 2.

Example 3
A white powder having the following composition was produced.
(Composition) (wt%)
(1) Talc is 100.0.
(2) Mica 10.0
(3) Petal-like spherical porous calcium carbonate 15.0
(4) Bengala 0.1
(5) Yellow iron oxide 0.2
(6) Black iron oxide 0.01
(7) Magnesium stearate 3.0
(8) Preservative Appropriate amount (9) Fragrance A small amount (manufacturing method) of all components were mixed in a high-speed mixer, pulverized in a pulverizer, and powdered white powder was produced through a sieve. Table 3 shows the useful effects of using this powdered white powder.

Example 4
An eye shadow having the following composition was prepared.
(Composition) (wt%)
(1) Talc is 100.0.
(2) Mica 10.0
(3) Pearl agent 20.0
(4) Plate-like barium sulfate 5.0
(5) Petal-like spherical porous calcium carbonate 5.0
(6) Titanium oxide 1.0
(7) Magnesium stearate 2.5
(8) Zinc stearate 0.5
(9) Ultramarine 5.0
(10) Black iron oxide 1.0
(11) Yellow iron oxide 0.5
(12) Liquid paraffin 8.0
(13) Capryl / glycerine caprate 3.0
(14) Preservative Appropriate amount (15) Fragrance A small amount (prototype method) Components (1) to (11) are mixed in a high-speed mixer, and components (12) to (14) are mixed and dissolved at 40 ° C. In addition, mix evenly. The component (15) is added to the mixture and mixed, and then the product pulverized by a pulverizer is passed through a sieve. This was compression molded into a metal pan to obtain a solid eye shadow. Table 4 shows the useful effects of using this solid eye shadow.

Example 5
A face washing powder having the following composition was prepared.
(Composition) (wt%)
(1) Talc 15.0
(2) Corn starch 20.0
(3) Cocoyl isethionate Na 15.0
(4) Lauroyl glutamate Na 10.0
(5) Petal-like spherical porous calcium carbonate 20.0
(6) Mannitol 20.0
(Prototype method) A facial cleansing powder was prepared by mixing all components in a high-speed mixer. Table 5 shows the useful effects of using this face washing powder.

Example 6
An emulsion having the following composition was prepared.
(Composition) (wt%)
(1) Decaglyceryl monomyristate 2.1
(2) Hydrogenated soybean phospholipid 0.6
(3) Stearic acid 0.5
(4) Behenyl alcohol 1.6
(5) Cetyl palmitate 0.6
(6) α-olefin oligomer 6.0
(7) Cetyl 2-ethylhexanoate 6.0
(8) Glyceryl tri-2-ethylhexanoate 6.0
(9) Glycerin 5.0
(10) Preservative appropriate amount (11) 100.0 with purified water (12) Petal-like spherical porous calcium carbonate 2.0
(13) Carboxyvinyl polymer 0.1
(14) Purified water 10.0
(15) Sodium hydroxide 0.04
(16) Purified water 4.96
(Prototype method)
Both (1) to (10) and (11) are heated and dissolved at 80 ° C., and (11) is gradually added to (1) to (10) while stirring to emulsify. Further, (12) was added with stirring, then (13) to (16) were added, and the mixture was cooled to room temperature to produce an emulsion. Useful effects using this emulsion are shown in Table 6.

Example 7
A gel type lotion having the following composition was prepared.
(Composition) (wt%)
(1) Carboxyvinyl polymer 0.35
(2) Purified water to 100.0 (3) Sodium hydroxide 0.1
(4) Purified water 4.9
(5) Sodium hyaluronate (1% aqueous solution) 6.0
(6) POE (30) POP (6) Decyltetradecyl 0.3
(7) Ethanol 5.0
(8) Preservative appropriate amount (9) Perfluoropolyether 0.2
(10) Petal-like spherical porous calcium carbonate 2.0
(Prototype method)
Preliminarily dissolve (6) by heating at 40 ° C. While stirring (1) to (2), (3) to (4) were added to form a gel, and (5) to (10) were sequentially added to form a uniform gel to make a gel type lotion. Table 7 shows the useful effects of using this gel type lotion.

Example 8
A clay pack having the following composition was prepared.
(Composition) (wt%)
(1) Bentonite 12.0
(2) Kaolin 10.0
(3) Petal-like spherical porous calcium carbonate 5.0
(4) POE (20) cetyl ether 1.0
(5) 1,3-butylene glycol 10.0
(6) Glycerin 10.0
(7) Preservative appropriate amount (8) Polyvinyl alcohol 1.0
(9) Set to 100.0 with purified water (prototype method)
Heat (1) to (7) at 50 ° C. and mix uniformly. (8) to (9) are uniformly dissolved at room temperature. While stirring (1) to (7), (8) to (9) are gradually added and mixed uniformly. A clay pack was made by cooling to room temperature while stirring. Useful effects using this clay pack are shown in Table 8.

It is a scanning electron micrograph (magnification 7,000 times) of the petal-like porous calcium carbonate used in the example of the present invention.

Claims (2)

A skin cosmetic comprising 0.5 to 30% by weight of petal-like porous spherical calcium carbonate having a particle size of 1 to 20 μm . The skin cosmetic according to claim 1, which has a petal-like porous spherical calcium carbonate content of 0.5 to 5% by weight and is used as a makeup cosmetic.