JPH07116011B2 - Makeup cosmetics - Google Patents

Description

TECHNICAL FIELD The present invention relates to a novel makeup cosmetic, and more specifically to a makeup cosmetic characterized by containing pressure-disintegrating spherical alumina. .

That is, the present invention has good spreadability and adhesion to the skin during use, has a soft feel and excellent adhesion, has a good finish, and is a good coating for press-type cosmetics. The purpose of the present invention is to provide a makeup cosmetic which is excellent in the feeling of use and usability such as being removable on the body and having a sliding property.

[Prior Art] Generally, various inorganic powders and organic powders such as white, constitution and color pigments are generally used for makeup cosmetics. It is commercialized by changing the type and mixing ratio of the powder base according to the preparation.

Heretofore, white pigments having a strong cohesive force, such as titanium oxide, zinc oxide, and barium sulfate, have been selected and used as one of the methods for improving the adhesiveness and adhesion of makeup cosmetics to the skin by using a powder base.

On the other hand, when used, it spreads and spreads on the skin, improves the feeling of sliding, uniform application and prevents the cake surface of the pressed cosmetics from solidifying (caking), and the transfer to puffs, sponges, etc. For the purpose of smoothing the smoothness, for example, talc, mica, titanium mica, inorganic powder such as kaolin, nylon powder, polyethylene powder, crystalline cellulose,
Mixing organic powder such as starch, the characteristics of the powder raw material,
In other words, measures have been taken to utilize the functions of extender, disintegrant, dispersant and the like.

In the past, the effect of spherical powder was applied to improve the spreadability or feel of such makeup cosmetics, and to prevent caking.For example, as a technique in which spherical silicic acid anhydride having a specific particle size was compounded, JP-A-54-55739, 54-140736 is known,
The characteristic attributed to such a shape is used.

[Problems to be Solved by the Invention] However, even if the above-mentioned conventionally known powder properties are effectively used in a makeup cosmetic composition, there are the following problems, which make preparation difficult.

That is, when the adhesion of makeup cosmetics is demanded from the white pigment, the adhesive force to the skin becomes too strong as the usage amount increases, and therefore the spread during application becomes poor.
In addition, since the covering power is large and the opacity increases, it is difficult to apply to products having a natural finish. Furthermore, because it easily aggregates,
There is a problem in that the surface of the pressed cosmetic material is solidified, which causes deterioration in the removal of the applied cosmetic material.

For this reason, a conventionally known combination of powder bases or a spherical or plate-like inorganic / organic powder having a relatively large particle size is used as an extender,
When it is used as a disintegrating agent and attempts to prepare a product with lightness as a powder and good spreadability and to prevent caking, the adhesiveness at the time of application decreases and the adhesion of the cosmetic film becomes poor, causing the coating film to float. In addition to the poor appearance, the texture of the cosmetic film, the makeup lasting, and the like, the powder scatterability increases, and the press moldability and impact resistance also tend to deteriorate.

When a powder base having a small particle size is used frequently, the adhesiveness at the time of application is improved, the texture of the cosmetic film is improved, the sliding feeling is poor, and the cohesiveness is increased, which may cause caking. Become.

Also, in order to obtain a transparent product, if a large amount of talc or mica, which is a commonly used extender pigment, is added, unnatural luster occurs in the makeup film, while if a powder with a large particle size is used to increase the transparency, it will be There were drawbacks such as feeling roughness and worsening the texture of the cosmetic film.

Therefore, there is a limit to improving the usability and usability of makeup cosmetics and obtaining higher quality products from the conventionally known powder characteristics and combinations, and it is necessary to meet the diversifying consumer needs in recent years. Various studies have been made on the current situation in which product development is required.

[Means for Solving the Problems] The inventors of the present invention have conducted intensive studies in view of the above circumstances, and as a result, blended pressure-disintegrating spherical alumina, and the powder characteristics were effectively exhibited. The makeup effect is high,
It was found that a makeup cosmetic having an excellent feeling of use and usability can be obtained, and the present invention has been completed based on this finding.

That is, the present invention relates to a makeup cosmetic characterized by containing pressure-disintegrating spherical alumina, particularly pressure-disintegrating aggregate alumina having an average aggregate particle size of 1 to 100 μm.

Hereinafter, the present invention will be further described.

The pressure-disintegrating spherical alumina used in the present invention is an aggregate of alumina particles, which is destroyed by pressure and finely pulverized, and when applied to a decorative surface with fingers or an applicator, It has the property of disintegrating by its coating and rubbing pressure. When this is measured by a Haydon surface property measuring machine and expressed as shear fracture strength, it is preferably in the range of 10 to 200 g / cm ² .

The pressure-disintegratable spherical alumina is an aggregate in which primary particles composed of activated alumina represented by α-alumina or γ-alumina are aggregated, and they are, for example,
It can be produced by a method such as spray drying. Then, an agglomerate formed by granulating alumina particles with an appropriate binder, for example, methyl cellulose, polyvinyl alcohol, carboxymethyl cellulose, an acrylic derivative, or the like, or a sintered product thereof may be used. These can be selected and used at any time as long as they have appropriate strength and exhibit pressure-disintegrating properties.

As described above, the present invention is characterized by blending agglomerated alumina that disintegrates under a rubbing pressure, using a Haydon surface measuring machine, shear fracture strength determined from the degree of change of frictional resistance value against load, That is, the degree of resistance change (degree of change in frictional resistance value) when a 1 cm running with a constant load was applied to the sample was obtained, and when the load was changed, the change in resistance was positive. A load having a strength in the range of 10 to 200 g / cm ^{2 when} the applied load is measured and converted per unit area is preferable. That is, within this range, the coating film is easily disintegrated by rubbing, and there is no afterglow between particles, discomfort, etc., and adhesion is improved and a fine makeup film is obtained. If the shear fracture strength is small, the mechanical strength is weak, so that breakage occurs during the process of mixing, crushing, pressing, etc. during the production of makeup cosmetics, and if it is large, the friction resistance is too strong. Therefore, it is not suitable for achieving the intended purpose of the present invention, because the coating pressure does not cause destruction.

Further, in the present invention, the alumina agglomerate has good smoothness if its particle surface is smooth and has a substantially spherical shape or a shape close to a spherical shape, and sufficiently exhibits the function as an extender and a disintegrant. Therefore, it is preferable that the effects of the makeup spreadability of the makeup cosmetic on the skin, the soft feel, the prevention of caking, etc. can be effectively obtained.

Further, the alumina agglomerate is essentially porous, has a large oil absorption amount, and adsorbs an oily component, so that it has properties of reducing a sticky feeling and improving cosmetic stickiness, which is preferable.

Further, it has a relatively small refractive index and excellent transparency as compared with conventional white pigments such as titanium oxide and zinc oxide.
Therefore, even if used in a large amount, it does not give unnatural whiteness to the cosmetic film, and it is suitable for products that require transparency, and it is also preferable because it can be easily mixed and prepared with other cosmetic raw materials.

The average agglomerated particle size of the pressure-disintegrating spherical alumina used in the present invention is preferably in the range of 1 to 100 μm. That is, it is an important factor for improving the feeling of use and usability together with the above-mentioned powder shape. It can be appropriately selected and used according to the type of alumina aggregate and the purpose of use, but when the particle size is 1 μm or less, it is peculiar to cosmetics. It becomes difficult to obtain the sliding property of
If it is more than m, the roughness tends to be noticeable from the surface of feeling such as graininess and discomfort, or the appearance is not preferable.

Further, the blending amount in the present invention may be determined depending on the intended cosmetics and purposes, and is not particularly limited, but 1
The range of up to 70% by weight is sufficient for the present invention.

The present invention is to effectively utilize the excellent powder characteristics of the above-mentioned pressure-disintegratable spherical alumina, but it is used alone or in other conventionally known extenders and disintegrants, such as inorganic silica such as silicic acid anhydride and nylon powder. -It may be used together with the organic spherical powder and is not limited. That is, considering the usability and usability,
It is possible to use it, and it is possible to maintain and expand the product characteristics while limiting the usage amount. The present inventors have also found that, in this case, the combined use with spherical silicic anhydride is favorable in terms of adhesion to the skin, adhesion, and the like.

When using the pressure-disintegratable spherical alumina, surface coating treatment may be carried out with an oil agent, a silicon compound, a metal soap, a fatty acid or the like, if necessary, and the compounding may be carried out.

The makeup cosmetics of the present invention include, in addition to the pressure-disintegrating spherical alumina which is an essential component, other components usually used as raw materials for cosmetics, such as white / body / coloring pigments, pearlescent agents, natural minerals, organic powders, and oil agents. , Metal soap, surfactant, moisturizer, antiseptic, fragrance, and various other additives.

These makeup cosmetics may be in the form of powder, press, liquid, stick, emulsified or oily, regardless of product form or shape, and examples thereof include white powder, foundation, jojoba, eye Examples include shadows, lipsticks, eyeliners, mascaras, and eyebrows.

[Examples] Hereinafter, the present invention will be further described with reference to Examples. These do not limit the invention in any way. still,
All compounding amounts are weight%.

Example [1] In order to confirm the effect of the present invention, a sample (pressed foundation) was prepared by blending the components of Table 2 with the foundation formulation of Table 1, and comparative evaluation was performed.

The sample was adjusted by substituting a part of the (10) mica which is the component of Table 1 with the component of Table 2 to make the total amount 100% by weight. Regarding the production of the sample, according to the usual production method, the powder components shown in Table 1 were uniformly mixed, and the oily component shown in Table 1 previously dissolved therein was added and mixed, and then the components shown in Table 2 were added and mixed. Then, it was obtained by crushing and homogenizing, filling a container, and press-molding.

The evaluation was performed on the items such as the degree of flaking and the presence or absence of caking, the spread and spread when applied to the skin, and the feeling of adhesion by a continuous break test using an applied body. The results are shown in Table 2.

As is clear from Table 2, the pressure-disintegratable spherical alumina was compared with the conventionally known extenders and disintegrants such as spherical silicic acid anhydride, spherical nylon powder, and talc, and did not cause caking, resulting in a coated body. It can be seen that a product having a good smoothness, a smooth spread and spread on the skin during use, and a markedly improved adhesion of the coating film was obtained, which is extremely useful.

In order to further confirm the effect of the present invention, the sample 1-
Using 1, 1-7, 1-9, and 1-11, a use test was conducted on a panel consisting of 40 women. The evaluation is performed by absolute evaluation, and the evaluation items and the results are shown in Table 3.

As can be seen from the results in Table 3, the press-type foundation containing the pressure-disintegrating spherical alumina of the present invention blends into the coated body during use, spreads and spreads on the skin, has good adhesiveness, and is soft. It has an excellent usability and usability, such as having a good feeling of use, a feeling of adhesion after use, a non-powdered, even and finely-finished makeup film, and good makeup lasting. Was confirmed.

Example [2] Similar to Example [1], an oily foundation as a sample was prepared by blending the ingredients shown in Table 5 with the formulations shown in Table 4, and the effects of the present invention were examined.

The sample was prepared by preliminarily heating and dissolving the oily components of Table 4 according to the usual production method, adding the powder components of Table 4 uniformly mixed thereto, and kneading and homogenizing sufficiently, and then adding and mixing the components of Table 5 Then, it was obtained by pouring into a container, filling and cooling.

The evaluation items and the results in this case are shown in Table 5.

As can be seen from Table 5, the oil-based foundation containing the pressure-disintegrating spherical alumina that is the product of the present invention has good spreadability and spread on the skin during use, and has a soft feel.
The coating film was excellent in adhesion, the stickiness was improved, and the makeup was long-lasting, which was extremely useful.

Example [3] White powder (component) (blending amount) (1) Squalane 4.0 (2) Liquid paraffin 2.0 (3) Perfume 0.3 (4) Pressure disintegratable spherical alumina 40.0 (5) Talc 15.0 (6) Coloring pigment 1.0 (7) Remaining amount of mica (Production method) Components A (1) to (3) are mixed.

B components (5) to (7) are mixed by stirring with a blender.

A is added to CB and mixed, and then component (4) is added and mixed, dispersed and homogenized, and then filled in a container to obtain a product.

The white powder of the present invention obtained as described above spreads and spreads at the time of application, has good adhesiveness, has a fine texture of the cosmetic film, has a transparent feeling and has a natural finish, and has a powder on the cosmetic film. It was very excellent in that it did not give a feeling of floating and had high adhesion, and was also useful in terms of the effect of suppressing oil floating.

Example [4] Stick-like blusher (ingredient) (blending amount) (1) Carnauba wax 2.0 (2) Microcrystalline wax 3.0 (3) Ceresin wax 2.0 (4) Squalane 20.0 (5) Liquid paraffin 25.0 (6) Compressible spherical alumina 10.0 (7) Mica titanium 15.0 (8) Talc 5.0 (9) Color pigment 3.0 (10) Remaining amount of mica (manufacturing method) Components A (1) to (5) are mixed and heated and dissolved.

B components (7) to (10) are mixed by stirring with a blender.

After adding A to CB and thoroughly kneading, the component (6) is added and mixed.

D C is poured into a container, filled, and cooled to obtain a product.

The stick-shaped blusher of the present invention obtained as described above is smooth and easy to apply, has a soft feeling of use, and further has an adhesion property,
The make-up was good and the strength was good.

Example [5] Liquid foundation (component) (blending amount) (1) Stearic acid 1.0 (2) Stearyl alcohol 0.5 (3) Lipophilic monoglyceryl monostearate 0.8 (4) Polyoxyethylene sorbitan monooleate (20E. O.) 1.0 (5) Sorbitan sesquioleate 0.2 (6) Liquid paraffin 3.0 (7) Squalane 3.0 (8) Titanium oxide 6.0 (9) Talc 2.5 (10) Color pigment 0.35 (11) Pressurized disintegrating spherical alumina 2.0 (12) Lecithin 0.2 (13) 1,3-butylene glycol 13.0 (14) Triethanolamine 0.35 (15) Carboxyvinyl polymer (1% aqueous solution) 20.0 (16) Carrageenan (1% aqueous solution) 10.0 (17) Fragrance 0.3 (18) Remaining amount of purified water (manufacturing method) A Components (12) to (14) and component (18) are mixed and dissolved.

B components (8) to (11) are uniformly mixed.

After adding B to C A and dispersing, heat to 75 ° C.

After heating and dissolving the components (1) to (7), C is added while stirring.
And emulsify.

E Cool to 50 ° C., add components (15) to (17), and cool to room temperature with further stirring.

The container is filled with F E to obtain a product.

The liquid foundation of the present invention obtained as described above had excellent spreadability during application, good conformability to the skin, and a close contact feeling, and excellent cosmetic effects.

Example [6] Eyeshadow (Component) (Blending amount) (1) Squalane 5.0 (2) Liquid paraffin 2.0 (3) Vaseline 3.0 (4) Pressure disintegrating spherical alumina 7.0 (5) Mica titanium 35.0 (6) Talc 10.0 (7) Color pigment 4.0 (8) Mica residual amount (manufacturing method) A components (1) to (3) are heated and dissolved.

B components (5) to (8) are mixed by stirring with a blender.

Add A to CB, stir mix, then add and mix component (4) to homogenize.

A container is filled with DC and pressed to obtain a product.

The eye shadow of the present invention obtained as described above provides a makeup film that is easy to remove onto an application body, is easy to apply, and has a powdery and adherent feeling, and has a high makeup effect. It was

[Effects of the Invention] As described above, the characteristic of the present invention is that by using the pressure-disintegrating spherical alumina, its peculiar effect is sufficiently exhibited.
It is possible to improve the usability and usability of makeup cosmetics.

The pressure-disintegrating spherical alumina according to the present invention has good adhesiveness due to its spherical shape and properties, has softness and good sliding property, has a feeling of use, and has an appropriate strength of being disintegrated by a rubbing pressure.

As a result, when applied to makeup cosmetics, it acts as an extender at the start of makeup, spreads well on the skin, gives a smooth and soft feel, and easily breaks with a weak force of about the application pressure during use. As a result, an excellent product with a fine texture, no powder floating, good adhesiveness, good conformity to the skin, a uniform adherence, and good makeup lasting was obtained.

Further, in the pressed cosmetic, since it works as a disintegrating agent, it is possible to suppress caking, obtain a product with good release to the coated body, and a sliding feeling.

Furthermore, the pressure-disintegrating spherical alumina has a small covering power as a property, and when it adheres to the skin, it gives a natural finished film.
It can be easily applied to products for which transparency is desired, and since it has a high oil content adsorption ability, it can also reduce the greasiness and stickiness of products with a high oil content.

Thus, according to the present invention, it is possible to provide a high-quality makeup cosmetic product which has an excellent makeup effect, a feeling of use, and usability while being able to expand the product.

Claims (2)

[Claims] 1. A makeup cosmetic comprising a pressure-disintegrating spherical alumina. 2. The makeup cosmetic composition according to claim 1, wherein the average agglomerated particle size of the pressure-disintegratable spherical alumina is 1 to 100 μm.