JP2003073234A - Compound powder and cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide compound powder which has improved pigment dispersibility, contains an oil adsorbed and applied thereon, gives a uniform appearance to the color and wet color of a cosmetic, and has high stability and high safety. SOLUTION: This compound powder is obtained by once or more repeating a compounding treatment process which has (1) the first process for the adsorption or application of an ester oil-based agent and the second powder to the surface of the first powder and (2) the second process for a coating treatment using an N-acylated lysine as one repeating unit, on the first powder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite powder, a method for producing the same, and a cosmetic, and in particular, the interaction between the powders is weakened and cohesiveness is suppressed, and the soft feel, excellent adhesion, A composite powder that has both moisturizing properties and spreadability, has a wetting color with an oil agent, and has improved stability and dispersibility of color pigments, a method for producing the composite powder, and a soft feel that combines the composite powder. The present invention relates to a cosmetic having a smooth application feeling and a high moisturizing feeling, a natural feeling of finish, a uniform feeling, and a small change in color over time and excellent in makeup lasting.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
As a method for producing a cosmetic mainly composed of powders, there is a dry mixing in which only the powders are first mixed and then an oil agent is added and further mixed. However, when iron oxide, titanium oxide, zinc oxide or fine particle pigments that do not have good dispersibility and tend to agglomerate are included, only cosmetics that do not have a good mixed state and lack a uniform color and a stable wetting color with an oil agent can be obtained. There was also no sense of uniformity in the applied state. Further, in order to carry out sufficient dispersion by this method, it is necessary to prolong the mixing time, and there is a problem that the production efficiency becomes poor.

Another method is wet mixing in which powders are mixed with a solvent to form a slurry and an oil agent is mixed therein. Since a solvent is used, the dispersibility of the fine particle pigment is improved, and the above problems are solved, but it is necessary to remove it because a solvent that is not contained in the cosmetic is finally used. It becomes inefficient and costly. Further, when the amount of the oil agent is increased, there are problems that re-aggregation occurs due to the presence of a large amount of the oil agent on the powder surface, and the stickiness of the oil agent is strongly felt.

On the other hand, as another solution, a composite of pigments is used. The dispersibility was improved by coating the surface of a mother pigment having a good dispersibility such as a pigment having a large particle size or a spherical pigment with a poor dispersibility, iron oxide, titanium oxide, zinc oxide or a fine particle pigment. However, even with this method, the problems of re-aggregation of the pigment due to the oil agent, sticky feeling, and uniform feeling of wet color have not been sufficiently solved.

[0005]

In view of the above circumstances, the present inventor has made earnest studies to obtain a uniform feeling of cosmetics mainly made of powders, and as a result, as a result, pigments and lakes have been applied to arbitrary powders. It has a layer in which a coloring pigment such as a colorant, a colored pigment or a white pigment is adsorbed and coated by an adsorbing force of an ester-based oil agent, and a multi-layered treatment layer composed of an N-acylated lysine uniform thin film layer to reduce cohesiveness. , Soft touch and excellent adhesion, moisturizing,
It has been found that a composite powder having spreadability, having a wetting color due to an oil agent, and having improved stability, safety and dispersibility of a coloring pigment can be obtained. Furthermore, cosmetics containing the same composite powder have a soft feeling, smooth application feeling, and high moisturizing feeling, and the finish color and wet color are uniform, and there is little change in color over time, which makes the makeup last longer. They also found that they were excellent, and completed the present invention.

That is, according to the present invention, a first step of adsorbing or coating an ester oil agent and a second powder on the surface of the first powder with respect to the first powder, and N-acylation The composite powder obtained by repeating the composite treatment step in which the second step of applying the coating treatment with lysine is one repeating unit is repeated once or twice or more, and the ester is added to the first powder. A first step of adsorbing or coating a system oil agent and a second powder on the surface of the first powder;
Method for producing composite powder, characterized by repeating once or twice or more the composite treatment step in which the second step of performing a coating treatment with an acylated lysine is one repeating unit, and the composite powder It is in a cosmetic composition.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The first powder and the second powder used in the present invention are not particularly limited as long as they are used in cosmetics. Red No. 104 aluminum lake, red No. 102 aluminum rake, red 2
No. 26, Red No. 201, Red No. 202, Blue No. 1 Aluminum Lake, Yellow No. 4 Aluminum Lake, Yellow No. 5 Aluminum Lake, Yellow No. 203 Barium Lake, etc. Pigments and lake pigments, yellow iron oxide, red iron oxide, black iron oxide ,
Colored pigments such as chromium oxide, carbon black, ultramarine blue and navy blue, white pigments such as zinc oxide, titanium oxide and cerium oxide, titanium oxide fine particles and zinc oxide particulates may be mentioned. Furthermore, nylon powder, silk powder, urethane powder, Teflon (registered trademark) powder, silicone powder, polymethylmethacrylate powder, cellulose powder, silicone elastomer spherical powder, polyethylene powder and other polymers, talc, mica, sericite, Extender pigments such as kaolin and tabular barium sulfate, pearl pigments such as titanium mica, barium sulfate and calcium carbonate,
Examples thereof include metal salts such as magnesium carbonate, aluminum silicate and magnesium silicate, inorganic powders such as silica, spherical silica and alumina, bentonite, smectite and boron nitride. There is no particular limitation on the shape of these powders (spherical, rod-shaped, needle-shaped, plate-shaped, irregular-shaped, scaly, spindle-shaped, etc.).
Further, the same kind of powder may be used for the first powder and the second powder. First powder (base powder) and second powder (color pigment)
The particle size ratio of and is preferably 5: 1 or more, more preferably 10: 1 or more.

The mass ratio of the total amount of the first powder and the second powder used in the present invention depends on various characteristics such as the shape of the powder, the surface area, and the maximum amount of adsorbed oil agent. , First powder: second powder = 50: 50 to 99: 1 is preferable, and more preferably first powder: second powder = 80: 2.
0 to 95: 5. Within this range, the surface of the mother powder is uniformly covered without liberation of the second powder during the treatment process, and the uniformity of coloring of the powder effectively appears.

As the ester type oil agent used in the present invention,
There is no particular limitation as long as it is used in cosmetics such as fatty acid ester. Specifically, for example, didecyl adipate, (adipic acid-2-ethylhexanoic acid / stearic acid) glyceryl oligoester, ethyl isostearate, cetyl isostearate, isopropyl isostearate, octyl isostearate, isostearyl isostearate, Glyceryl isostearate, hydrogenated castor oil isostearic acid, cholesteryl isostearate, batyl isostearate, phytosteryl isostearate, hexyl isostearate, polyoxyethylene glyceryl isostearate, polyoxyethylene isostearate castor oil, isononony isononanoate, isotridecyl isononanoate, 2-Ethylhexyl Isopalmitate, 2-Ethylhexyl Isoperargonate, Cetyl 2-Ethylhexanoate Cetostearyl 2-ethylhexanoate, Stearyl 2-ethylhexanoate, Octyldodecyl erucate, Octyl oxystearate, Isocetyl octanoate, Isostearyl octanoate, Isodecyl oleate, Octyldodecyl oleate, Oleyl oleate, Ethyl oleate. , Glyceryl oleate, diglyceryl oleate, cholesteryl oleate, dihydrocholesteryl oleate, decyl oleate, phytosteryl oleate, cetyl caprylate, ethylene glycol dioctanoate, ethylene glycol dioleate, di (capryl capric acid) propylene glycol , Neopentyl glycol dicaprate, propylene glycol dioleate, neopentyl glycol dioctanoate, propylene glycol dicaprylate Cole, dipentaerythritol fatty acid ester, mono-2-ethylhexanoic acid glyceryl diparamethoxycinnamate, hexyldecyl dimethyloctanoate, octyldodecyl dimethyloctanoate, dicoconut oil fatty acid pentaerythrite, ethyl stearate, stearic acid hardened castor Oil, 2-ethylhexyl stearate, isocetyl stearate, diglyceryl stearate, stearyl stearate, butyl stearate, cholesteryl stearate, 12-stearoyl hydroxyisocetyl stearate, 12-stearoyl hydroxystearate stearyl, 12-stearoyl hydroxystearate Acid isostearyl, tetra-2-ethylhexanoic acid pentaerythritol, tetramyristate pentaerythritol, tetraisosterate Pentathrythritol acrylate, glyceryl tri-2-ethylhexanoate, trimethylolpropane trioctanoate, trimethylolpropane triisostearate, trimethylolpropane triisooctanoate, polyoxyethylene triisostearate hydrogenated castor oil, glyceryl trioxystearate, Glyceryl tricaprylate, tri (caprylic acid / capric acid)
Glyceryl, tri (caprylic acid / capric acid / myristic acid / stearic acid) glyceride, glyceryl triundecylate, glyceryl triisopalmitate, glyceryl triisostearate, triglyceride tallow fatty acid glyceryl,
Trilanolin fatty acid glyceryl, hard lanolin fatty acid cholesteryl, soft lanolin fatty acid cholesteryl, octyldodecyl lactate, lauryl lactate, octyldodecyl neopentanoate, isopropyl palmitate, 2-ethylhexyl palmitate, isocetyl palmitate, isostearyl palmitate, hydroxy hydroxy palmitate. Cholesteryl stearate, 2-ethylhexyl hydroxystearate, dipentaerythritol hexaoxystearate, isotridecyl myristate, isocetyl myristate, isostearyl myristate, octyldodecyl myristate, decyl myristate, myristyl myristate, cetyl myristate, Butyl myristate, monohydroxystearic acid hydrogenated castor oil, isolauric acid Tearyl, dilauroylglutamate (cholesteryl octyldodecyl), dilauroylglutamate (phytosteryl octyldodecyl), dilauroylglutamate (phytosteryl behenyl octyldodecyl), hexyl laurate, lanolin fatty acid isostearyl, lanolin fatty acid isopropyl, lanolin Dodecyl, lanolin fatty acid cholesteryl, octyldodecyl ricinoleate, glyceryl ricinoleate, cetyl ricinoleate, ethyl linoleate, isopropyl linoleate, diisostearyl malate and the like may be used in combination of two or more.

Of these, lauroyl glutamic acid di (cholesteryl octyldodecyl) and lauroyl, which have a high adsorptivity to powders, an appropriate hydrophilic-hydrophobic balance, and a high interaction with N-acylated lysine. 8 carbon atoms represented by the following general formula (1), such as diglutamate (phytosteryl octyldodecyl) and lauroyl diglutamate (phytosteryl behenyl octyldodecyl)
N-acyl glutamic acid esters having the above acyl groups are preferable. Of these, dilauroylglutamate di (cholesteryl octyldodecyl) is particularly preferable.

[0011]

[Chemical 1]

In the above formula, R ¹ is a linear or branched, saturated or unsaturated hydrocarbon group having 8 or more carbon atoms, and R ² and R ³ may be the same or different and may be a straight chain having 8 or more carbon atoms. It is a chain or branched, saturated or unsaturated hydrocarbon group, cholesterol or sterol residue.

The treatment amount of the ester-based oil agent used in the present invention with respect to the powders depends on various characteristics such as the shape, surface area and maximum oil agent adsorption amount of the first powder.
It is preferably 0.05 to 10 parts by mass, more preferably 0.2 to 5 parts by mass, relative to 0 parts by mass. Within this range, the surface of the powder can be uniformly covered without being liberated during the treatment step, and the deposition state of the N-acylated lysine can be controlled, so that the function of adhering effectively appears.

When the treatment with the ester-based oil agent is performed twice or more, the total treatment amount (ratio) with respect to the final powder obtained varies depending on the shape of the powder, the surface area, the maximum oil agent adsorption amount, and the like. Although it depends on the characteristics, it is preferably 0.05 to 20 parts by mass, more preferably 0.2 to 15 parts by mass with respect to 100 parts by mass of the final powder. Within this range, the effect of forming a uniformly treated coating film of N-acylated lysine is high without developing a sticky feeling as a whole. Further, a fat-soluble dye may be added to the ester oil agent for use.

When the treatment with the ester-based oil agent is performed twice or more, the oil agent of the same type as the first time or different oil agents may be used after the second time. In the second and subsequent treatments, the second powder may or may not be used together.

In the present invention, as a method for uniformly adsorbing and coating the surface of the powdery material with the ester oil agent, the dry method is as follows:
Henschel mixer, ball mill, a method of mixing powders and ester-based oil agent in a mixing and stirring device such as a super mixer, in the wet, where the powders are well dispersed in a suitable solution that does not dissolve both, Examples include a method in which the ester-based oil agent is added as it is or after being dissolved in a solvent such as alcohol, diethyl ether, isopropyl ether, and toluene, and well stirred, and if necessary, filtration, drying, and pulverization are performed. However, the wet method is more preferable because the adsorption film has high uniformity and the flow of operation is smooth.

The N-acylated lysine used in the present invention has one or more aliphatic acyl groups having 8 to 22 carbon atoms in the molecule, and examples thereof include N-lauroyl lysine and N-myristyl lysine. , N-stearyl lysine,
Examples thereof include N-behenyl lysine, and among these, N-lauroyl lysine, which is excellent in touch, is particularly preferable.

The amount of N-acylated lysine used in the present invention to be treated with respect to the powder is preferably 0.2 to 10 parts by mass per treatment per 100 parts by mass of the total powder,
More preferably, it is 0.3 to 7 parts by mass. Within this range, a single film of N-acylated lysine does not precipitate, a uniform film is formed, and the stickiness of the ester oil is not felt at all.

When the coating treatment with N-acylated lysine is carried out twice or more, the total treatment amount for the powders is preferably 0.4 to 40 parts by mass with respect to 100 parts by mass of the powders, and further, It is preferably 2 to 20 parts by mass. Within this range, a single film of N-acylated lysine does not precipitate, a uniform film is formed, and the effect of reducing cohesiveness is high.

In the present invention, the method for coating the surface of the powder with N-acylated lysine is to disperse the second powder and the first powder in which the ester-based oil agent is uniformly adsorbed on the surface well. The alkaline solution of N-acylated lysine is slowly added to the acidic aqueous solution or the acidic aqueous solution is prepared by dispersing the first powder in the alkaline aqueous solution in which the N-acylated lysine is dissolved. A wet method in which N-acylated lysine is added to form a uniform treated film is added. In this case, it is possible to add the ester-based oil agent as it is without performing operations such as filtration, desalting, drying, and, in some cases, crushing when performing the next treatment, which is convenient. Is. Needless to say, there is no problem even after operations such as filtration, desalting, drying, and, in some cases, crushing.

In the present invention, when the complexing treatment with the combination of the ester oil agent and the N-acylated lysine is repeated twice or more, the number of times is not a troublesome operation,
N-acylated lysine precipitation state is controlled, and the effect of forming a uniform treatment film is not reduced 1 to 10 times
It is preferably twice, particularly preferably 2 to 5 times.

The composite powder thus obtained has a second powder and a thin film layer of an ester-based oil agent on the innermost layer of the coating layer on the surface of the first powder, and the N-acylated layer is formed on the thin film layer. A form in which a uniform coating of lysine is firmly covered, or a form in which an ester-based oil agent layer and an N-acylated lysine layer are alternately covered one or more times, or a second powder and an ester-based oil agent. The layer and the N-acylated lysine layer are alternately covered one or more times or a combination thereof, and the aggregation between the powders is almost suppressed, and the dispersibility is extremely high. In addition, it has a wet color with oil, excellent adhesion, moisture retention, and spreadability, and the stability and safety of color pigments are improved.

In the cosmetic of the present invention, the above-mentioned composite powder is blended in an amount of 1 to 100% by mass per 100 parts by mass of the cosmetic.
Within this range, a soft touch, smooth application feeling and high moisturizing effect due to the composite powder are exhibited, and the finish is natural and uniform, and the effect of long-lasting makeup with little color change over time is also achieved. can get.

In addition to the above-mentioned components, the cosmetic of the present invention contains an oil agent, powder (pigment, dye,
Resin), fluorine compound, resin, surfactant, viscous agent, preservative, perfume, ultraviolet absorber (including organic type and inorganic type. UV
-It may correspond to either A or B), it is possible to use components such as physiologically active ingredients, salts, solvents, antioxidants, chelating agents, neutralizing agents, pH adjusting agents, insect repellents, etc. it can.

Examples of the oil agent include volatile and non-volatile oil agents and solvents and resins usually used in cosmetics,
It may be liquid, paste or solid at room temperature. Examples of oil agents include cetyl alcohol, isostearyl alcohol, lauryl alcohol, hexadecyl alcohol, higher alcohols such as octyldodecanol, isostearic acid, undecylenic acid, fatty acids such as oleic acid, glycerin, sorbitol, ethylene glycol, and the like.
Propylene glycol, polyethylene glycol, polyhydric alcohols such as raffinose, myristyl myristate, hexyl laurate, decyl oleate, isopropyl myristate, hexyldecyl dimethyloctanoate, glyceryl monostearate, diethyl phthalate,
Esters such as ethylene glycol monostearate and octyl oxystearate, hydrocarbons such as liquid paraffin, paraffin, petrolatum and squalane, lanolin,
Reduced lanolin, carnauba wax, candelilla wax, ceresin, ozokerite, waxes such as microcrystalline wax, mink oil, cacao butter, coconut oil, palm kernel oil, camellia oil, sesame oil, castor oil, oils and fats such as olive oil, ethylene- Olefin / Cooligomer, Polyethylene /
Examples thereof include ethylene propylene copolymer.

Examples of powders include the above-mentioned powders and surface-treated powders thereof. In particular, spherical powders and silicone elastomers having an elastomeric property are preferable because they have a high feel adjusting ability. In addition, the use of a water-absorbing or oil-absorbing powder or a water-repellent powder can further enhance the makeup-holding effect. As the water-repellent powder, it is preferable to use one that has been surface-treated with a perfluoroalkyl phosphate ester salt or a silicone compound.

Examples of the physiologically active ingredient include substances that give some physiological activity to the skin when applied to the skin. For example, whitening ingredients, anti-inflammatory agents, anti-aging agents, UV protection agents, slimming agents, tightening agents, antioxidants, hair growth agents, hair growth agents, moisturizers, blood circulation promoters, antibacterial agents, bactericides, drying agents, A cooling sensation, a warming sensation, vitamins, amino acids, a wound healing promoter, a stimulant relieving agent, an analgesic, a cell activating agent, an enzyme component and the like can be mentioned. Among them, natural plant extracts,
Seaweed extract components and crude drug components are particularly preferable. In the present invention,
It is preferable to blend one or more of these physiologically active ingredients.

Examples of these components include, for example, ashitaba extract, avocado extract, armature extract, altea extract, arnica extract, aloe extract, apricot extract, apricot kernel extract, ginkgo biloba extract, fennel extract, turmeric extract, oolong tea extract, agets. Extract, Chinese cabbage leaf extract, sardine extract, psyllium extract, scutellaria extract, barley extract, St. John's wort extract, sardine extract, Dutch mustard extract, orange extract, seawater dried product, seaweed extract, hydrolyzed elastin, hydrolyzed wheat powder, hydrolyzed silk , Chamomile extract, carrot extract, sagebrush extract, licorice extract, karkade extract, oyster extract, kiwi extract, kina extract, cucumber extract, guanosine,
Gardenia extract, Kumazasa extract, Clara extract, Walnut extract, Grapefruit extract, Clematis extract, Chlorella extract, Mulberry extract, Gentian extract,
Black tea extract, yeast extract, burdock extract, rice bran fermented extract, rice germ oil, comfrey extract, collagen,
Bilberry extract, Cycin extract, Psycho extract, Cai Tai extract, Salvia extract, Sorbour extract, Sasa extract, Hawthorn extract, Hawthorn extract, Shiitake extract, Dio extract, Sikon extract, Perilla extract, Shinanoki extract, Shimotsukisou extract, Peony extract, Shobu root extract , Birch extract, horsetail extract, Ivy extract, Hawthorn extract,
Sambucus nigra extract, yarrow extract, mint extract, sage extract, mallow extract, senkyu extract, senburi extract, soybean extract, turmeric extract, thyme extract, tea extract, clove extract, chigaya extract, chinpi extract, touki extract, daffodil extract, tounin extract. , Spruce extract, dokudami extract, tomato extract, natto extract, carrot extract, garlic extract, novara extract, hibiscus extract, bakumondou extract, lotus extract, parsley extract, honey, hamamelis extract, parietalia extract, Hikiokoshi extract, bisabolol, loquat extract, Coltsfoot extract, butterbur extract, butterbur extract, butcher bloom extract, grape extract, propolis, loofah extract Safflower extract, peppermint extract, bodice extract, button extract, hop extract, pine extract, horse chestnut extract, sphagnum extract, sucrose extract, melissa extract, peach extract, cornflower extract, eucalyptus extract, Yukinoshita extract, yuzu extract, yokuinin extract, wormwood extract, lavender extract. , Apple extract, lettuce extract, lemon extract, astragalus extract, rose extract, rosemary extract, Roman chamomile extract, royal jelly extract and the like.

The cosmetics of the present invention include, for example, lipstick,
Examples thereof include makeup cosmetics such as foundations, eye shadows, white powder, cheeks, and concealers, and basic cosmetics such as creams and sunscreens, but are not particularly limited.

[0030]

EXAMPLES The present invention will be described in detail below with reference to examples and comparative examples. First, the evaluation methods for various properties of the cosmetics used in Examples and Comparative Examples are shown below.

-Providing 10 panelists for each evaluation item for the skin usefulness evaluation (however, the panelists may overlap depending on the item) and evaluate according to the following evaluation criteria, and the average score of all panelists Was used as the evaluation result. Therefore, the larger the score, the higher the usefulness for the evaluation item.

[0032]

Example 1 Using talc, mica or sericite as the first powder (base powder) and red iron oxide, yellow iron oxide, black iron oxide or titanium oxide as the second powder (coloring pigment), respectively. The following composite processing was performed. 30 parts by weight of mother powder and 8.0 as a coloring pigment
Where the mass part was well dispersed in 170 mass parts of purified water, 2.8 mass parts of 6 mol / L hydrochloric acid was added, and further lauroylglutamic acid di (cholesteryl octyldodecyl) (Eldew CL-202, manufactured by Ajinomoto Co., Inc.) 4 0.0 parts by mass was added and well stirred (10 minutes). On the other hand, N-
The above powder was prepared by dissolving 2.0 parts by mass of lauroyl-L-lysine (Amihope LL, manufactured by Ajinomoto Co., Inc.) in a mixed solution of 3.6 parts by mass of 5 mol / L sodium hydroxide aqueous solution and 26 parts by mass of purified water. Added to the dispersion. 1 mol / L
After neutralizing with hydrochloric acid or a 1 mol / L sodium hydroxide aqueous solution, the cake obtained by filtration and washing with water was transferred to a metal vat and blown with a blast dryer set at 80 ° C. for 24 hours.
After drying for an hour, the composite powder of the present invention was obtained. According to electron microscopic observation, the obtained composite powder showed little aggregation between the powders, almost no single-piece deposition of flaky N-lauroyl-L-lysine crystals was observed, and the color pigment was used as a base powder. On the other hand, it was confirmed that it had a treated film that was uniformly adsorbed (Fig. 1). In addition, it had a soft touch, had adhesiveness, moisturizing properties, and spreadability, and was excellent in a uniform finish.

Example 2 The following complexing treatment was carried out using talc, mica or sericite as the mother powder and red iron oxide, iron oxide yellow, iron oxide black or titanium oxide as the color pigments, respectively. When 30 parts by mass of the mother powder and 8.0 parts by mass of the color pigment were well dispersed in 170 parts by mass of purified water, 6 mol / L hydrochloric acid.2.
Add 8 parts by weight. Furthermore, 1.0 part by mass of di (laurylyl glutamate) (cholesteryl octyldodecyl) was added,
Stir well. On the other hand, 2.0 parts by mass of N-lauroyl-L-lysine dissolved in a mixed solution of 3.6 parts by mass of a 5 mol / L sodium hydroxide aqueous solution and 26 parts by mass of purified water was divided into four equal parts, and one of them was divided into four parts. Was added to the above powder dispersion. Subsequently, 1.0 part by mass of di (cholesteryl octyldodecyl) lauroyl glutamic acid was added, and after stirring well, an alkali solution of N-lauroyl-L-lysine, which had been divided into four equal parts, was added, and this operation was repeated for 2 more times. Repeated once. After neutralizing with 1 mol / L hydrochloric acid or 1 mol / L sodium hydroxide aqueous solution, the cake obtained by filtration and washing with water is transferred to a metal vat and dried for 24 hours by a blow dryer set at 80 ° C. Then, the composite powder of the present invention was obtained. The obtained composite powder shows that N-lauroyl-L is less likely to be aggregated between the powders when observed by an electron microscope.
-Almost no single substance precipitation of lysine flaky crystals was observed,
It was confirmed that the color pigment had a treated film that was uniformly adsorbed to the mother powder. In addition, it had a soft feel, had adhesiveness, moisturizing properties, and spreadability, and was excellent in a sense of uniform finish.

Example 3 The following composite treatment was carried out using talc or mica as a mother powder and red iron oxide or yellow iron oxide as a color pigment. When 67.8 parts by weight of the mother powder and 0.2 parts by weight of the color pigment were well dispersed in 170 parts by weight of purified water, 6 mo
1 / L hydrochloric acid 2.8 parts by mass was added, and further lauroyl glutamate di (cholesteryl octyldodecyl) 2.4 was added.
The mass part was added and it stirred well. On the other hand, 2.0 parts by mass of N-lauroyl-L-lysine dissolved in a mixed solution of 3.6 parts by mass of a 5 mol / L sodium hydroxide aqueous solution and 26 parts by mass of purified water was added to the powder dispersion liquid. did. 1
After neutralizing with mol / L hydrochloric acid or 1 mol / L sodium hydroxide aqueous solution, the cake obtained by filtration and washing with water is transferred to a metal vat and dried for 24 hours with a blow dryer set at 80 degrees. Then, the composite powder of the present invention was obtained. The obtained composite powder is observed by an electron microscope,
There is little agglomeration between the powders, almost no single-piece deposition of flaky crystals of N-lauroyl-L-lysine is observed, and the colored pigment has a treated film uniformly adsorbed to the base powder. confirmed. In addition, it had a soft touch, had adhesiveness, moisturizing properties, and spreadability, and was excellent in a uniform finish.

Example 4 The following composite treatment was carried out using titanium mica as the mother powder and konjyo as the color pigment. 36 parts by mass of the mother powder and 2.0 parts by mass of the color pigment were well dispersed in 170 parts by mass of purified water, and 2.8 parts by mass of 6 mol / L hydrochloric acid was added, and further dilauroylglutamic acid di (cholesteryl octyldodecyl) was added. ) 2.0 parts by mass was added and well stirred. On the other hand, 2.0 parts by mass of N-lauroyl-L-lysine dissolved in a mixed solution of 3.6 parts by mass of a 5 mol / L sodium hydroxide aqueous solution and 26 parts by mass of purified water was added to the powder dispersion liquid. did. 1 mol / L hydrochloric acid or 1 mol /
After neutralizing with L sodium hydroxide aqueous solution, the cake obtained by filtration and washing with water is transferred to a metal vat,
Drying was carried out for 24 hours with a blower dryer set at 0 degree to obtain the composite powder of the present invention. The obtained composite powder has a small amount of N-
Almost no deposition of flaky crystals of lauroyl-L-lysine was observed, and it was confirmed that the colored pigment had a treated film uniformly adsorbed to the mother powder. In addition, it had a soft touch, had adhesiveness, moisturizing properties, and spreadability, and was excellent in a uniform finish.

Example 5 Talc or mica as mother powder and red 2 as color pigment
The following composite treatment was performed using No. 26 or Yellow No. 401, Gunjo, and titanium oxide, respectively. 34 parts by mass of the mother powder and 4.0 parts by mass of the color pigment were well dispersed in 170 parts by mass of purified water, and then 2.8 parts by mass of 6 mol / L hydrochloric acid was added, and further dilauroylglutamate di (cholesteryl octyldodecyl) was added. ) 4.0 parts by mass was added and well stirred. On the other hand, 2.0 parts by mass of N-lauroyl-L-lysine was dissolved in a mixed solution of 3.6 parts by mass of a 5 mol / L sodium hydroxide aqueous solution and 26 parts by mass of purified water,
It was added to the above powder dispersion. 1 mol / L hydrochloric acid or 1 m
After neutralizing with an ol / L sodium hydroxide aqueous solution, the cake obtained by filtration and washing with water is transferred to a metal vat and dried for 24 hours by a blow dryer set at 80 degrees, A composite powder was obtained. According to electron microscopic observation, the obtained composite powder showed little aggregation between the powders, almost no single-piece deposition of flaky N-lauroyl-L-lysine crystals was observed, and the color pigment was used as a base powder. On the other hand, it was confirmed that it had a treated film that was uniformly adsorbed. In addition, it had a soft touch, had adhesiveness, moisturizing properties, and spreadability, and was excellent in a uniform finish.

Examples 6 to 8 and Comparative Example 1 (Powder Foundation) A powder foundation was prepared according to the formulation and manufacturing method shown in Table 1.

[0039]

[Table 1]

Manufacturing method The oily component is heated and mixed, slowly added over the premixed powder component, further stirred, passed through a 60 mesh, and then die-molded into a product using a die. Got

Example 9 and Comparative Example 2 (white powder) According to the prescription and manufacturing method in Table 2, a powder screen was prepared.

[0042]

[Table 2]

Manufacturing method The oily component is heated and mixed, slowly added over the previously mixed powder component, further stirred, and then passed through a 60 mesh, and the product is punched on a metal plate using a metal mold. Got

Example 10, Comparative Example 3 (Powder Eyeshadow (Loose Type)) Powder eyeshadow (loose type) was prepared according to the formulation and manufacturing method of Table 3.

[0045]

[Table 3]

Manufacturing method The powder components were mixed by a conventional method and filled in a container.

Examples 11 and 12, Comparative Example 4 (Powder eyeshadow (pressed type)) Powder eyeshadow (pressed type) was prepared according to the formulation and the manufacturing method shown in Table 4.

[0048]

[Table 4]

Manufacturing method The oily component is heated and mixed, slowly added over the premixed powder component, further stirred, and then passed through a 60 mesh, and punched on a metal plate using a mold to produce a product. Got

From the results shown in Tables 1 to 4, the cosmetics of the examples of the present invention have a soft feeling, a smooth application feeling, a high moisturizing feel, and a uniform finish, as compared with the comparative examples.
It can be seen that the makeup lasts long.

[0051]

As described above, according to the present invention, by effectively utilizing the function of adsorbing the ester-based oil agent to the powders in the powder coating treatment step with the ester-based oil agent and the N-acylated lysine. , The color pigment is coated on the surface of the mother powder, the stability, safety, and dispersibility are improved, the cohesiveness is reduced, the soft feel, and the wetting by the oil agent, compared with the case of the color pigment alone. A blended powder that combines color and excellent adhesion, moisture retention, and spreadability, and a blend of the blended powder that has a soft feel, a smooth application feel, and a high moisturizing feel, and the finish is natural and uniform. It is clear that the color change with time is small and the makeup durability is excellent.

[Brief description of drawings]

FIG. 1 is an electron micrograph (drawing substitute photograph) of red iron oxide-coated mica of Example 1. Average particle size is 20μ mica
m, red iron oxide 0.5 μm.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4C083 AB172 AB211 AB232 AB242                       AB432 AC011 AC581 AC661                       AC862 AD092 AD152 BB13                       BB25 CC01 CC12 CC14 DD17                       EE01 EE06 EE07 FF05

Claims (8)

[Claims] 1. A first step of adsorbing or coating an ester oil-based agent and a second powder on the surface of the first powder, and coating with N-acylated lysine. A composite powder obtained by repeating once or twice or more the composite processing step in which the second step of applying the treatment is used as one repeating unit. 2. A composite obtained by subjecting a first powder, an ester-based oil agent, and a second powder to dry or wet mixing and stirring, and then coating with N-acylated lysine. powder. 3. A composite powder obtained by adsorbing or coating an ester-based oil agent and a second powder on the first powder, followed by a coating treatment with N-acylated lysine, Furthermore,
A composite powder obtained by repeating a treatment step in which (A) an adsorption treatment of an ester oil agent and then (B) a coating treatment with an acylated lysine as one repeating unit are repeated 0 times or 1 or more times. 4. A composite powder obtained by adsorbing or coating an ester-based oil agent and a second powder on the first powder, followed by a coating treatment with N-acylated lysine, Furthermore,
The treatment step in which (A) an ester-based oil agent adsorption treatment (the second powder may or may not be used in combination) and the subsequent (B) a coating treatment with an acylated lysine as one repeating unit Composite powder obtained by repeating once or more than once. 5. The ester-based oil agent has a nitrogen atom having 8 carbon atoms.
The composite powder according to claim 4, which is a glutamic acid ester having the above acyl group. 6. The composite powder according to claim 4, wherein the N-acylated lysine is N-lauroyl lysine. 7. A cosmetic comprising the composite powder according to any one of claims 1 to 4. 8. A first step of adsorbing or coating an ester oil agent and a second powder on the surface of the first powder, and a coating treatment with N-acylated lysine for the first powder. The method for producing a composite powder, comprising repeating the composite processing step in which the second step of carrying out is one repeating unit is repeated once or twice or more.