JPS61286309A - Makeup cosmetic - Google Patents

Abstract

PURPOSE:A novel makeup cosmetic having smoothness to the skin, improved spread, providing a wetting feeling free from skin irritation, comprising a pigment component with proper water repellency, obtained by blending a cosmetic with pigment treated with an ionic surface active agent. CONSTITUTION:A makeup cosmetid blended with pigment which is subjected to surface treatment with an ionic surface active agent (selected depending upon surface potential of pigment to be treated, for example, cationic surface agent such as tetraalkyl ammonium salt, alkyl pyridinium salt, or polyoxyuethylene alkyl ether carboxylate, phosphoric ester salt, etc.). When the pigment has positive surface charge, the pigment is subjected to surface treatment with 0.01-10.0wt% cationic surface active agent and when the pigment has negative surface charge, it is subjected to surface treatment with 0.01-10.0wt% cationic surface active agent.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a novel make-up cosmetic composition containing a surface-treated pigment.

[Conventional technology]

Makeup cosmetics, such as powder foundations, eye shadows, and blushers, contain inorganic pigments and organic pigments. Among these pigments, extender pigments such as talc and mica have been preferred because they are relatively smooth and spread well on the skin. However, if large amounts of these extender pigments, especially kaolin, are used, they will not adhere well to the skin, resulting in them being too thick or powdery. On the other hand, colored pigments such as iron oxide and titanium oxide, as well as organic pigments, have poor usability such as slippage and spreadability on the skin, so their usage has been limited.

Conventionally, in order to obtain a natural cosmetic window, metallic soap or silicone oil was added, or the surface of the pigment was coated with silicone oil or metallic soap to improve its spread and feel on the skin.

[Problem that the invention seeks to solve]

However, when silicone oil or metal soap is added to makeup cosmetics, or pigments that have been surface-treated with silicone oil or metal soap are blended, the pigment becomes more water-repellent, and the pigment itself becomes more water-repellent. It has the disadvantage that it is difficult to use because the balance of affinity for oil and oil changes.

Therefore, although makeup cosmetics containing these surface-treated pigments have slightly improved spread and feel on the skin, they have poor adhesion to the skin and a moisturizing feel, and are not completely satisfactory. Ta.

In view of the above circumstances, the present inventors have obtained a new makeup cosmetic in which the pigment component has appropriate water repellency, is smooth on the skin, spreads well, gives a moist feeling, and is not irritating to the skin. As a result of extensive research, we have discovered that the above-mentioned problems can be solved by incorporating pigments that have been surface-treated with ionic surfactants into cosmetics.

[Means for solving problems]

That is, the present invention provides a novel makeup cosmetic containing a pigment whose surface has been treated with an ionic surfactant.

The present invention will be explained in detail below.

The ionic surfactants used in the present invention are cationic surfactants and anionic surfactants. Any known cationic surfactant can be used as the cationic surfactant. For example, alkylammonium salts, especially tetraalkylammonium salts,
1-rubyridium salt or alkylammonium salt. Preferred tetraalkylammonium salts are of the formula -i (wherein X is a chlorine atom or a bromine atom, R8 is a straight chain alkyl group having 10 to 22 carbon atoms,
3 and R4 are straight chain alkyl groups of 1 to 10 carbon atoms, or R8 and R2 are straight chain alkyl groups of 10 to 22 carbon atoms, and R3 and R4 are straight chain alkyl groups of 1 to 1 carbon atoms.
0 straight chain alkyl groups). Particularly preferred tetraalkylammonium salts are cetyltrimethylammonium chloride, behenyltrimethylammonium chloride, dimethyldistearylammonium chloride, dimethylcimyristylammonium chloride and dimethylcibalmitylammonium chloride.

Any known anionic surfactant can be used as the anionic surfactant. Examples of anionic surfactants include fatty acid salts such as alkali salts or alkaline earth metal salts of higher fatty acids (e.g., sodium stearate, magnesium stearate, etc.), polyoxyethylene alkyl ethers, or polyoxyethylene alkyl aryl ether terminals. Ether carboxylic acids and their salts in which 3 moles of ethylene oxide have been added (e.g. sodium polyoxyethylene lauryl ether carboxylate to which 3 moles of ethylene oxide has been added, sodium polyoxyethylene stearyl ether carboxylate to which 3 moles of ethylene oxide has been added), higher fatty acids and amino acid condensates [e.g., sodium N-stearoyl-L-glutamate, sodium N-lauroyl-β-alanine, etc.],
Sulponates (e.g. sodium laurylbenzenesulfonate, sodium dihexylsulfosuccinate, etc.),
Sulfuric acid ester salts [e.g., sodium 7-ethyl-2-methylundecanol-4-sulfate, sodium tetraoxyethylene lauryl ether sulfate, etc.], and phosphoric acid ester salts [e.g., sodium polyoxyethylene lauryl ether phosphate (E03 mol) ), dipolyoxyethylene dodecyl ether phosphate (E08 mol), polyoxyethylene nonylphenyl ether sodium phosphate (EO 3 mol), etc.).

Particularly preferred anionic surfactants are polyoxyethylene alkyl ether carboxylates and phosphate ester salts.

Pigments for use in the present invention include any natural or synthetic inorganic or organic pigment.

Examples of inorganic pigments include extender pigments such as talc, mica, kaolin, silica, alumina, magnesium carbonate, barium sulfate, etc., white pigments such as titanium dioxide, zinc white, etc., and colored pigments such as iron oxide (red), iron oxide ( yellow), iron oxide (black), cobalt blue, navy blue, ultramarine blue, chromium oxide, chromium hydroxide, manganese violet, etc.

Examples of organic pigments include azo pigments [e.g. Red No. 202,
Red No. 203, Red No. 204, Red No. 205, Red No. 20
No. 6, Red No. 207, Red No. 208, Red No. 219, Red No. 220, Red No. 221, Orange No. 203, Orange No. 204
No. 401, Orange No. 401, Red No. 404, Red No. 405, Yellow No. 205, Yellow No. 401] and phthalocyanine pigments (for example, Blue No. 404).

Next, a method for surface treating the pigment with an ionic surfactant will be described.

When treating a pigment with a cationic surfactant, the pigment to be surface treated is first mixed with a solvent such as water, alcohol, or water at a concentration of 1 to 50% by weight, preferably 10 to 20% at 30 to 100°C. Disperse in a mixed solvent with alcohol, etc.

On the other hand, 0.01 to 10.0% by weight of a cationic surfactant, preferably 0.05 to 2.0% by weight of the pigment, is dissolved in a solvent such as water, alcohol, or a mixed solvent of water and alcohol. do. This surfactant solution is added to the pigment dispersion liquid while stirring at 30 to 90°C. Here, the cationic surfactant is strongly chemically adsorbed onto the pigment surface. Next, wash with water at 50-100°C, filter, and
A cationic surfactant surface-treated pigment is obtained by drying at 120°C.

When treating a pigment with an anionic surfactant, the same method as described above can be used.

The selection of cationic surfactant and anionic surfactant depends on the surface potential (ζ potential) of the pigment to be treated.

For example, pigments that have a negative surface charge when dispersed in water, such as mica, kaolin, talc, ultramarine blue, titanium dioxide,
When Lysol Rubine BCA and the like are surface treated with a cationic surfactant, the cationic surfactant easily and firmly adsorbs to the pigment surface, so that it will not be desorbed by boiling or washing with water. On the other hand, pigments such as iron oxide, zinc white, and permanent orange that have a positive surface charge when dispersed in water can be treated with an anionic surfactant so that the surfactant is strongly adsorbed onto the surface. A surface-treated pigment can be obtained.

If the pigments have the same surface charge, two or more pigments can be surface-treated with an ionic surfactant at the same time in the same bath.

Furthermore, pigments with a negative surface charge in a water-dispersed state,
A coated pigment with a positive surface charge can be coated with a pigment of the opposite sign (i.e., with a positive surface charge) and can be surface treated with an anionic surfactant in the same manner as above. It is also possible to coat a pigment with a positive surface charge with a pigment with a negative surface charge and then perform the surface treatment with a cationic surfactant.

The coating of this pigment with another pigment having a surface charge of the opposite sign can be carried out by conventional methods. For example, when pigments that have a negative surface charge when dispersed in water, such as mica, kaolin, talc, titanium dioxide, ultramarine blue, and lysol rubin BcA, are coated with zinc white or iron oxide that has a positive surface charge when dispersed in water. For surface treatment, alkali is added and coated with iron and zinc hydrated oxides produced by hydrolysis of inorganic and organic acid salts, and heated at 50 to 200°C, preferably 80 to 120°C. You can bake it with

As mentioned above, depending on the surface charge of the pigment, it can be surface treated directly with an ionic surfactant or coated with a pigment with an opposite sign of surface charge and then surface treated with an ionic surfactant. .

Therefore, it is possible to prepare pigments surface-treated with the same or the same ionic surfactant, regardless of the type of surface charge of the pigment itself.

In addition, the method of surface treating pigments with ionic surfactants is not limited to the above-mentioned method, but can include dispersing pigments and ionic surfactants directly or in water or a mixed solvent of water and alcohol.
A method of processing this with a ball mill or a roller mill, a flow coater method of fluidizing the pigment and spraying water with an ionic surfactant dissolved therein, or a mixed solvent of water and alcohol;
It can also be done with etc. In this way, the surface properties of the various pigments blended into cosmetics can be made homogeneous or completely consistent. Therefore, in conventional cosmetics, problems such as color stripes and color separation caused by differences in pigment surface properties can be solved by incorporating the above-mentioned surface-treated pigments into cosmetics.

The makeup cosmetics of the present invention include, for example, whitening powder, cake-like foundation, oil-based foundation, water-based foundation, milky lotion foundation, cream foundation, whitening powder, stylized foundation, blusher, eyeshadow, eyeliner, mascara,
Lipstick, pencil nail enamel, etc. may be mentioned.

The content of the pigment surface-treated with the ionic surfactant described above can be in any amount within the range generally used as a powder. For example, cake-like foundations are about 80-99% by weight, oil-based foundations are about 60-80% by weight, and lipsticks are about 0.01-2% by weight.
0% by weight, about 2-15% in emulsion foundation
Weight%.

Furthermore, in the makeup cosmetic of the present invention, all the pigment components blended therein do not necessarily need to be pigments surface-treated with the above-mentioned ionic surfactant, but may be blended in combination with untreated pigments. You can also obtain sufficient effects.

The powdered ionic surfactant surface-treated pigment prepared by the above method can be blended into a no-cap cosmetic by the same method as in the case of blending conventional pigments.

For example, a cake-like foundation is prepared as follows.

The entire pigment portion including the ionic surfactant pigment is thoroughly mixed using a mixer such as a Nauta mixer, a Henschel mixer, or a ribbon blender.

Add the entire oil containing the fragrance, preservative, and activator prepared separately to this, and continue stirring, weighing, and mixing.

After the pigment part and the oil part are mixed uniformly, they are pulverized using a hammer mill, jet mill, ball mill, etc., and then molded into a cake-like medium plate.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to Examples.
This does not limit the invention.

In the following examples, parts are by weight unless otherwise specified.

Example 1 (1) Production of surface-treated pigment Dimethyl distearyl ammonium chloride (hereinafter referred to as
(referred to as CDS) was dissolved in 100 parts of distilled water. On the other hand, 100 parts of talc was dispersed in 1000 parts of distilled water and heated to 75° C. with stirring. The CDS aqueous solution was added to this talc dispersion, and stirring was continued for 3 hours while maintaining the temperature at 75°C.

After cooling, filter and wash with boiling water to obtain CDS surface treatment talc 1.
00.9 parts were obtained. Mica, kaolin, titanium dioxide, and ultramarine blue were treated with CDS in a similar manner. on the other hand,
The surface of iron oxide (yellow) was coated with fine titanium dioxide particles, and then subjected to CDS treatment.

That is, 100 parts of iron oxide (yellow) was dispersed in 500 parts of distilled water, and 100 parts of a 0.75 molar titanyl sulfate aqueous solution was added to this.
of the mixture was heated and boiled for 2 hours while stirring to coat the iron oxide surface with titanium dioxide.

Next, this titanium dioxide-coated iron oxide (yellow) was subjected to CDS treatment in the same manner as the talc treatment method described above.

(2) Preparation of solid white powder Ingredients Part by weight CDS-treated talc of Example 1 (1) 20 CDS-treated mica of Example 1 (1) 30 Example 1 (1)
) CDS-treated kaolin 20 Example 1 (1) C
DS-treated titanium dioxide 10 CDS-treated iron oxide (yellow) of Example 1 (1) 1 CDS-treated ultramarine of Example 1 (1) 2 Vaseline
2 Squalane 6
Glyceryl tri2-ethylhexanoate polyoxyethylene sorbitan monooleate (ethylene oxide 20 mole adduct) 0.5 Sorbitan sesquioleate 1.5 Fragrance
Appropriate amount of ethyl paraben Appropriate amount of each of the above CDS-treated pigments (talc, mica, kaolin, titanium dioxide, iron oxide, ultramarine blue) was thoroughly mixed in a kneader to obtain 83 parts of powder. An aqueous phase was prepared by keeping 50 parts of purified water at 70°C. Mixing other ingredients except for the pigment ingredients and fragrance mentioned above,
Approximately 15 parts of an oil phase was prepared by heating and dissolving the mixture and keeping it at 70°C.

The oil phase was added to the aqueous phase and homogeneously emulsified using a homomixer. This was added to the powder portion and kneaded using a kneader. Water was evaporated and the mixture was processed using a pulverizer. Further, while stirring the mixture well, a fragrance was uniformly sprayed on the mixture, and the mixture was compression molded to obtain a solid white powder.

Comparative Example 1 Example 1 An untreated pigment was used in place of all the CDS-treated pigments blended in the white powder in (2), and 3 parts of polydimethylsiloxane was added as an oil component to improve slippage and spreadability. A solid white powder was obtained in the same manner as in Example 1 (2).

Northern radiation ↓ Example 1 All C blended in the white powder (2)
Example 1 using untreated pigment instead of DS treated pigment
Solid white powder was obtained in the same manner as in (2).

(1) Production of surface-treated pigments Behenyltrimethylammonium chloride (hereinafter referred to as B
TC) was dissolved in 100 parts of distilled water at 40°C. On the other hand, 100 parts of mica was dispersed in 1000 parts of distilled water and heated to 50° C. while stirring. The BTC aqueous solution was added to this mica dispersion, and stirring was continued for 3 hours while maintaining the temperature at 50°C. After cooling, it was filtered and washed with boiling water to obtain 100.8 parts of BTC surface-treated mica. Pearl agent, kaolin, and ultramarine blue were treated with B''TC in a similar manner.

On the other hand, the iron oxide (black) is the iron oxide (yellow) of Example 1 (1).
was coated with titanium dioxide and treated with BTC in the same manner as the other pigments in this example.

(2) Preparation of solid powder eye shadow Volume: 11 dishes BTC-treated kaolin of Example 2 (1) 30.0 BTC-treated mica of Example 2 (1) 18.0 Example 2
(1) BTC treated ultramarine 22.0 Example 2 (1
) BTC-treated pearl pigment 19.0 BTC-treated iron oxide (black) of Example 2 (1) 2.5 Glyceryl tri-2-ethylhexanoate 2.0 Squalane 5.0 Glyceryl monostearate 0.5 Methylparaben Appropriate amount of fragrance
Appropriate amounts of the BTC-treated pigments other than the BTC-treated pearl pigments were mixed and ground, and then the BT and C-treated pearl pigments were mixed. Adding the other components previously mixed and melted to the pigment mixture and compressing it,
It was molded into a solid to obtain a solid powder eye shadow.

Comparison Example 2 (2) All the BTC-treated pigments in the eyeshadow were replaced with untreated pigments, and zinc myristate 4 was added to improve the feeling of use such as powderiness and spread. A solid powder eye shadow was obtained in the same manner as in Example 2 (2).

(1 day) Comparative Example 4 A solid powder eye shadow was prepared in the same manner as in Example 2 (2), using untreated pigment in place of all the BTC treated pigments blended in the eye shadow in Example 2 (2). Got a shadow.

Example 3 (1) Production of surface-treated pigment 100 parts of mica was added to 500 parts of distilled water with stirring to uniformly disperse it, the slurry was heated to 90°C, and maintained at PHIO with caustic soda. Separately, zinc chloride 8
Prepare an aqueous solution of zinc chloride by dissolving 50 parts of zinc chloride in 50 parts of distilled water,
This aqueous solution was gradually added to the above slurry under stirring. During the addition, the pH was adjusted to 8 to 10. After stirring for 2 hours, the mixture was filtered, washed with water, and dried to obtain 105 parts of mica coated with zinc white. In a similar manner, talc, ultramarine blue and lysol rubine BCA were also coated with zinc white.

On the other hand, dipolyoxyethylene dodecyl ether phosphate (ethylene oxide 8 mole adduct) (hereinafter referred to as DD
2.0 parts (referred to as P-8) were dissolved in 100 parts of distilled water at 40°C. Further, 00 parts of the above zinc white coated mica was dispersed in 1000 parts of distilled water, and the mixture was heated to 50° C. with stirring. The DDP-8 aqueous solution was added to this zinc white-coated mica dispersion, and stirring was continued for 3 hours while maintaining the temperature at 50°C.

After cooling, the mixture was filtered and washed with boiling water to obtain 1.2 parts of DDP-8 treated mica-0. The above zinc white coated talc, zinc white coated Lysole Rubin BCA, zinc white coated ultramarine, and iron oxide (yellow) not coated with zinc white are also subjected to DDP in the same manner.
-8.

(2) Ingredients for preparation of solid blusher Parts by weight DDP-8 treated mica of Example 3 (1) 65 DDP-8 treated talc of Example 3 (1) 20 DDP-8 treated Lysol Rubin BCA of Example 3 (1) DDP-8 treated iron oxide (yellow) of Example 3 (1) 1 DDP-8 treated ultramarine of Example 3 (1) 0.5 Squalane 5 Glyceryl tri2-ethylhexanoate ester Sorbitan sesquioleate 1 Methyl paraben
Appropriate amount of fragrance
An appropriate amount of the ingredients other than the fragrance was mixed well with a blender, and the fragrance was sprayed uniformly, processed with a pulverizer, and compression molded to obtain a solid blusher.

All DDs contained in the blush of Example 3 (2)
A solid blush was prepared in the same manner as in Example 3 (2) using an untreated pigment instead of the P-8 surface-treated pigment and adding 3 parts of polydimethylsiloxane as an oil component to improve slippage and spreadability. Obtained.

All the Ds contained in the blush of Example 3 (2)
A solid blusher was obtained in the same manner as in Example 3 (2) using an untreated pigment instead of the DP-8 treated pigment.

Comparative Experimental Example A use test conducted by 12 professional panelists revealed that the cosmetics of the present invention (Examples 1 to 3) and conventional cosmetics (Comparative Examples 1 to 6)
We compared the usability with . The results are shown in Table 1 based on sensory evaluation.

Sensory evaluation was performed based on the following criteria. The degree of adhesion to the puff (brush or tip) was divided into five grades, ranging from "removable" (good) to "unremovable" (poor).

Similarly, the adhesion to the skin ranges from "tsu<" (good) to "not strong".
(Poor), and the spread on the skin is from "Good" to "Good".
It doesn't spread (defect), but the wet feeling is "Yes"
(good) to "no" (bad), and smoothly.
The evaluation was divided into five levels, ranging from "Yes" (Good) to "No" (Poor).

Below is a margin of Example 4 (1) Production of surface-treated pigments Iron oxide (black) and iron oxide (red) were treated with CDS in the same manner as the CDS-treated iron oxide (yellow) produced in Example 1 (1).
Processed.

(2) Preparation of solid powder eyeliner Ingredients Part by weight CDS-treated mica of Example 1 (1) 14.0 CDS-treated talc of Example 1 (1) 10.0 Example 1
(1) CDS-treated kaolin 18. O Example 1 (1
) CDS treatment ultramarine 25.0 Example 4 (1) CDS treatment iron oxide (red) 3.0 Example 4 (1) CDS
Treated iron oxide (black) 1.0 liquid paraffin
13.0 carnauba wax
5.0 Polyethylene glycol 8
．． 0 Polyoxyethylene sorbitan monooleate (20 moles of ethylene oxide added Th) 1.0 Sorbitan sesquioleate 1.0 Propylparaben Appropriate amount Fragrance
Appropriate amounts of each of the CDS-treated pigment components (mica, talc, kaolin, ultramarine, and iron oxide) were thoroughly stirred in a kneader to obtain a powder portion. Polyethylene glycol and polyoxyethylene sorbitan monooleate were added to 40 parts of purified water and kept at 70°C to prepare an aqueous phase. The above-mentioned ingredients and ingredients other than the fragrance were mixed, heated and melted, and kept at 70°C to prepare an oil phase. The oil phase was added to the aqueous phase and uniformly emulsified using a homomixer, and this was added to the powder portion and kneaded using a kneader. Water was then evaporated and the mixture was processed using a pulverizer. moreover,
After stirring the mixture well, the fragrance was evenly sprayed on the mixture, and compression molding was performed to obtain a solid powder eyeliner. This eyeliner was excellent in terms of adhesion to the skin, spreadability, moisturizing feel, and smoothness.

〔Effect of the invention〕

The makeup cosmetics of the present invention are formulated with pigments whose surface has been treated with an ionic surfactant.
Pigment ingredients have moderate water contact and are smooth on the skin.
It spreads well, gives a moist feeling, and does not irritate the skin.

Claims (1)

[Scope of Claims] 1. A makeup cosmetic comprising a pigment whose surface has been treated with an ionic surfactant. 2. Pigments with negative surface charges are treated with 0 cationic surfactants.
．． 2. The cosmetic according to claim 1, which contains a surface-treated cosmetic containing 0.01 to 10.0% by weight. 3. A pigment with a positive surface charge is first coated with 0.05 to 15.0% by weight of a pigment with a negative surface charge, and this coated pigment is coated with a cationic surfactant of 0.01 to 10.0% by weight. 1. A cosmetic according to claim 1, which is formulated with a surface-treated cosmetic. 4. Pigments with positive surface charge are treated with anionic surfactant 0.
．． 2. The cosmetic according to claim 1, which contains a surface-treated cosmetic containing 0.01 to 10.0% by weight. 5. A pigment with a negative surface charge is first coated with 0.05 to 15.0% by weight of a pigment with a positive surface charge, and this coated pigment is coated with 0.01 to 10.0% by weight of an anionic surfactant. Claim 1, which contains a surface-treated product
Cosmetics listed in section.