JP5610741B2 - Cosmetic for improving makeup paste - Google Patents

Description

The present invention relates to a cosmetic that can improve cosmetic paste, and more particularly, by blending kojic acid and / or a derivative thereof with a specific methylene bis (hydroxyphenyl-benzotriazole) derivative, and further By applying a cosmetic obtained by using at least one of titanium oxide, zinc oxide, silk powder or nylon powder treated with silicone as a base preparation, it is used for makeup, especially foundation skins. The present invention relates to a cosmetic that improves the familiarity with the skin and prevents uneven coating (hereinafter sometimes referred to as “improvement of makeup” in the present invention).

  Kojic acids that have been studied by the present applicants for many years are known as multifunctional materials having various excellent characteristics such as a whitening effect and an anti-inflammatory effect (Patent Documents 1 to 8). In the makeup field, application as a moisturizer is also known (Patent Document 9).

JP 55-157509 A Japanese Examined Patent Publication No. 56-18869 Japanese Patent Publication No. 58-22151 Japanese Patent Publication No.58-34446 Japanese Patent Publication No. 60-10005 Japanese Patent Publication No.61-10447 JP-A-62-2909 Japanese Unexamined Patent Publication No. 04-198115 Japanese Patent Laid-Open No. 01-275515

  On the other hand, kojic acids have difficulty in the stability of the raw material over time, and various inventions for preventing, for example, coloring have been achieved. In particular, functional powders such as titanium oxide are colored immediately, and therefore, ingenuity in preparation technology including pretreatment has been performed, and certain results have been achieved (Patent Document 10).

JP 07-126135 A

  The use of kojic acid in the present invention is the result of pursuing further applicability in view of these circumstances, and it is treated with silicone by blending a specific methylenebis (hydroxyphenyl-benzotriazole) derivative, and further. The present invention provides a novel cosmetic for improving cosmetic paste obtained by using at least one of titanium oxide, zinc oxide, silk powder and nylon powder in combination.

  The specific methylenebis (hydroxyphenyl-benzotriazole) derivative is preferably 2,4-bis-[{4- (2-ethylhexyloxy) -2-hydroxy} -phenyl] -6- (methoxyphenyl) -1 , 3,5-triazine and 2,2′-methylenebis (6- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol), which are tanned Although it is used as a stop cosmetic (Patent Document 11), an application example as a cosmetic for improving a cosmetic paste provided by combining with kojic acids as in the present invention has not yet been found.

JP 2008-247897 A

  The so-called makeup paste when applying makeup cosmetics such as foundation varies depending on the skin condition. In other words, as a result of rough dry conditions and wet skin conditions such as sweating, uneven coating occurs, and natural finishes such as highlighting and whitening are conspicuous.

On the other hand, the refinement technology of various functional powders blended in the foundation has been remarkably advanced. By applying the technology, the physical means to improve the covering power of the pigmentation part and eliminate uneven skin color. Became effective.
However, in the feeling of use, there is a problem that the skin respiration is blocked as a result of the powder being too close to the details of the skin, resulting in an unpleasant occlusion.

For these reasons, it has been desired to develop a cosmetic that can maintain a certain level of makeup without discomfort regardless of the individual's skin condition.

Therefore, an object of the present invention is to solve the above-mentioned problems, and in particular, to provide a cosmetic material having an excellent feeling of use for improving makeup paste.

In reality, it is impossible to keep an individual's skin condition constant without depending on seasonal variations and the environment.
Therefore, the present inventors can provide a comfortable cosmetic feeling with less burden on the skin if a cosmetic for improving makeup paste that is not affected by this can be provided even if there is some variation in the skin condition. I started to search for and select the material.

In order to suppress makeup collapse and uneven coating and improve makeup paste and sustainability, it is conceivable to appropriately increase the adhesion to the skin during makeup, that is, to improve the affinity of foundations to the skin. In addition, in order to expect a function to prevent shine, it is essential to maintain an appropriate affinity with the functional powder in the foundations while efficiently adsorbing excess sebum secreted from the skin. If this adsorption or affinity is too strong, not only will the shine be noticeable, but the feeling of stickiness will increase, and conversely, if it is too weak, even if the shine can be reduced, breakup of the makeup will be promoted.
In view of these circumstances, the screening of materials suitable for improving makeup paste was continued in consideration of the functional balance between affinity and adsorptivity.

As a result, by combining a specific methylene bis (hydroxyphenyl-benzotriazole) derivative with kojic acid or a glycoside thereof, and further, titanium oxide, zinc oxide, silk powder or nylon powder treated with silicone is added to the combination. It has been found that a desired effect can be obtained by the combined use, and the present invention has been completed based on this finding.

That is, according to the present invention, there is first provided a cosmetic for improving cosmetic paste, characterized in that kojic acid and / or a glycoside thereof and a specific methylenebis (hydroxyphenyl-benzotriazole) derivative are blended. .
In addition, as a second invention, a cosmetic for improving a cosmetic paste is provided in which the cosmetic is treated with at least one of titanium oxide, zinc oxide, silk powder or nylon powder which has been subjected to silicone treatment.

As kojic acid (5-oxy-2-oxymethyl-γ-pyrone) in the present invention, a pure 5-oxy-2-oxymethyl-γ-pyrone, a known strain having kojic acid-producing ability is cultured. The fermented liquid mainly containing kojic acid, the concentrated liquid of the fermented liquid, and the one obtained by extracting and crystallizing kojic acid from the fermented liquid are used.

A kojic acid derivative refers to a kojic acid glycoside in which a kojic acid molecule is stabilized by binding a saccharide to the —CH ₂ OH group at the 2-position of kojic acid. They can be used in combination.

The methylene bis (hydroxyphenyl-benzotriazole) derivative is a specific one excellent in crystallinity, and is specifically exemplified in Japanese Patent No. 416962 and Japanese Patent Application Laid-Open No. 2008-247897. Of these, 2,4-bis-[{4- (2-ethylhexyloxy) -2-hydroxy} -phenyl] -6- (methoxyphenyl) -1,3,5-triazine and 2,2 are preferable. '-Methylenebis (6- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol). In this case, the average particle size is preferably 3 μm or less.

The silicone treatment in the second invention means that the titanium powder, zinc oxide, silk powder and nylon powder are each surface-treated with a silicone powder by a known method. Various chain and cyclic silicone oils such as hydrogenated polysiloxane, dimethylpolysiloxane, and methylphenylpolysiloxane can be used, and preferred examples include methylhydrogenpolysiloxane and methylpolysiloxane.

Titanium oxide is fine and preferably has an average particle size of 0.1 μm or less. Zinc oxide having a mean particle size of 0.1 μm or less can be suitably used as in titanium oxide, but a plate-like crystal powder is still preferred.

The silk powder is a fibrous silk protein whose main component is fibroin, and preferably has an average particle size of 10 μm or less.

Nylon powder is a polyamide-based fiber such as nylon 6, nylon 11, nylon 12 and nylon 66, and may be a copolymer of these, but preferably nylon 12 or the weight of nylon 12 and nylon 6 They are coalesced and have an average particle size of 10 μm or less.

The cosmetic for improving cosmetic paste containing the above functional ingredient of the present invention is used by directly applying it to the affected area in the form of external use such as cosmetics, creams and emulsions acceptable as quasi-drugs. The method can achieve the object of the present invention by applying foundations after applying the preparation according to the first invention as a base cream.

Although details of the mechanism of action are unclear, according to the use of the first invention, kojic acids as the first functional component and methylene bis (hydroxyphenyl-benzotriazole) derivative as the second functional component By this interaction, moderate skin affinity and sebum adsorbability were imparted at the time of application, and the adhesion balance of the functional powder used thereafter was promoted, so that it seems that a good cosmetic paste could be achieved.

Regarding the second invention, it includes not only a one-agent type but also a two-agent type method of use. That is, the use of the preparation according to the first invention and the use in a two-component type in which the silicone-treated powder defined in the second invention is applied together as a separate agent is also included.

According to the use of the second invention, the application amount of other foundations can be reduced, so that it does not place a burden on the skin, and is excellent in application particularly in a sweaty scene. In addition, when using a pressed powder such as powdered white powder, adhesion to the skin is significantly improved. By using together the silicone-treated third functional component of the present invention, the skin affinity and sebum adsorbability are further improved, and the powder containing the third functional component in other foundations is further improved. This is considered to be effective as an adhesion aid. Of course, the second invention can itself be used as a foundation.

The kojic acid and its glycoside in the present invention are preferably used in the range of 0.1 to 3% by weight based on the whole preparation, and the methylene bis (hydroxyphenyl-benzotriazole) derivative as the second functional component Is preferably 0.1 to 5% by weight, and in the ratio with kojic acids, is in the range of 1: 1 to 1: 3.

  In the case of a single agent type, the silicone-treated powder as the third functional component is 0.1 to 10% by weight, preferably 1.0 to 5% by weight, and in a ratio to kojic acids. Can exhibit a sufficient effect at 1: 3 to 1:10.

When used as a two-component type, the silicone-treated powder may be applied as it is, and in addition, it is formulated into a solid powder foundation using a known binder such as squalane, octyldodecyl myristate, sorbitan monooleate, etc. You may apply in the state. In the case of formulation, the amount of the treated powder is not particularly limited.

When preparing the cosmetics of the present invention, various known functional ingredients commonly used, for example, retinol, retinoic acid known as anti-aging agents, kojic acid, ascorbic acid, quercetin, glutathione known as whitening agents, Hydroquinone and derivatives thereof, phenolic compounds such as condensed tannins, caffeic acid and ellagic acid, and peripheral vasodilators such as vitamin E, vitamin E nicotinate, nicotinic acid, nicotinic acid amide, and various vitamins such as benzyl nicotinate , Ginger tincture, red pepper tincture, anti-inflammatory agents such as adrenal cortex hormone, epsilon-aminocaproic acid, lysozyme chloride, glycyrrhizin, allantoin, other placenta extract, licorice extract, purple root extract, lactic acid bacteria culture extract Various extracts from animals, plants and microorganisms Things like within a range not to impair the effects of the present invention can be used by adding appropriate according to prevailing purpose.

Furthermore, in addition to known functional components, in addition to base components such as fats and oils, various additives such as known moisturizers, preservatives, antioxidants, chelating agents, pH adjusters, fragrances, colorants, etc. Can be used in combination as long as the object of the present invention is not impaired.

That is, according to the present invention, firstly, kojic acid and / or its glycoside and a specific methylene bis (hydroxyphenyl-benzotriazole) derivative are blended, and makeup for improving makeup without skin occlusion is provided. As a second aspect of the present invention, there is provided a cosmetic for improving a cosmetic paste that is free of skin occlusion and uses at least one of titanium oxide, zinc oxide, silk powder and nylon powder treated with silicone. Is done.

Next, the present invention will be described by disclosing experiments and formulation examples, but these disclosures show preferred embodiments of the present invention and do not limit the present invention in any way.

<Test example> Formulation use test
a) Test method Each preparation (base cream) was prepared under the prescription conditions shown in Table 1 and Table 2 (Appendix). We asked healthy panelists to use this, and compared the evaluation items for familiarity with foundation and color unevenness. In addition, the foundation apply | coated after using each foundation cream used the powdery foundation manufactured by the following common prescription.
<Prescription of foundation>
Powder (wt%)
Mica 34.0
Talc 25.3
Kaolin 6.0
Titanium dioxide 9.0
Zinc stearate 2.0
Bengala 1.0
Yellow iron oxide 1.0
Black iron oxide 0.2
Nylon powder 10.0
Binder Squalane 6.0
Lanolin acetate 0.5
Isocetyl octanoate 2.5
Neopentyl glycol diisooctanoate 1.0
Isostearic acid 1.5

<Test results>
As shown in Tables 1 and 2 (test samples and experimental results), the preparations of the present invention had good compatibility with the foundation and improved cosmetic paste. Moreover, also in the feeling of use, as a result of maintaining the adhesiveness of the foundation after makeup moderately to the skin, it was found that the powder contained in the foundation was comfortable to use without feeling clogged.

Formulation Examples Formulation examples of the external preparation for skin of the present invention are shown below. In the formulation examples, “appropriate amount” means a ratio of 100% by weight as a whole.

<Formulation example 1> Base cream (1) (% by weight)
1. Kojic acid 3.00
2,2,4-bis-[{4- (2-ethylhexyloxy)
-2-hydroxy} -phenyl] -6- (methoxyphenyl)
-1,3,5-triazine 4.00
3. Jojoba alcohol 1.00
4.1,3-Butylene glycol 0.50
5. Dimethylsiloxane methyl (polyoxyethylene / polyoxypropylene copolymer) 5.00
6). Jojoba oil 5.00
7). Decamethylcyclopentanesiloxane 3.00
8). Octamethylcycloterolasiloxane 3.00
9. Dimethylpolysiloxane 5.00
10. Sodium ascorbate 0.04
11.1% sodium hyaluronate aqueous solution 2.00
12 Edetate disodium 0.01
13. Purified water

<Prescription Example 2> Base Cream (2) (wt%)
1. Kojic acid 0.10
2,2,2′-methylenebis (6- (2H-benzotriazol-2-yl)
-4- (1,1,3,3-tetramethylbutyl) phenol) 1.00
3. Sodium hyaluronate aqueous solution 2.00
4). Polyethylene glycol 400 3.00
5. Polyoxyethylene cetyl ether (25.E.O.) 5.00
6). Stearic acid 5.00
7). Avocado oil 1.00
8). Almond oil 10.00
9. dl-Pyrrolidonecarboxylate solution 5.00
10. P-Hydroxybenzoate 0.20
11. Edetate disodium 0.01
12 Purified water

<Formulation example 3> Base cream (3) (% by weight)
1. Kojic acid glucoside 0.10
2,2,4-bis-[{4- (2-ethylhexyloxy)
-2-hydroxy} -phenyl] -6- (methoxyphenyl)
-1,3,5-triazine 0.15
3. 2,2′-methylenebis (6- (2H-benzotriazol-2-yl)
-4- (1,1,3,3-tetramethylbutyl) phenol) 0.05
4). Methyl hydrogen polysiloxane-treated zinc oxide 0.50
5. Methylphenylsiloxane-treated silk powder 0.50
6). Sodium hyaluronate aqueous solution 2.00
7). Polyethylene glycol 400 3.00
8). Sorbitan monooleate 5.00
9. Stearic acid 3.00
10. Avocado oil 1.00
11. Almond oil 10.00
12 dl-Pyrrolidonecarboxylate solution 5.00
13. P-Hydroxybenzoate 0.20
14 Edetate disodium 0.01
15. Purified water

<Prescription Example 4> Milky Foundation (wt%)
1. Kojic acid 2.00
2,2,4-bis-[{4- (2-ethylhexyloxy)
-2-hydroxy} -phenyl] -6- (methoxyphenyl)
-1,3,5-triazine 2.00
3. Methyl polysiloxane-treated titanium oxide 3.00
4). Methylpolysiloxane-treated zinc oxide 7.00
5. Methylpolysiloxane treatment “nylon 12-nylon 6 copolymer” 3.50
6). Methylpolysiloxane-treated silk powder 0.04
7). Palm oil fatty acid monoethanolamine 2.00
8). Stearic acid 0.50
9. Myristic acid 0.50
10. Avocado oil 4.00
11. Ascorbic acid 2.00
12 P-Hydroxybenzoate 0.20
13. Sodium hyaluronate 5.00
14 Ogon Extract 0.14
15. Edetate disodium 0.01
16. Purified water

<Formulation Example 5> Powdery Foundation (wt%)
Powder 1. Talc 20.00
2. Mica 35.00
3. Kaolin 5.00
4). Methyl hydrogen polysiloxane-treated titanium oxide 10.00
5. Methyl hydrogen polysiloxane treated zinc oxide 5.00
6). Methyl hydrogen polysiloxane treated nylon powder 10.00
Binder 7 Squalane 6.00
8). Lanolin acetate 1.00
9. Octyldodecyl myristate 2.00
10. Sorbitan monooleate 0.50
Preservative 11. P-Hydroxybenzoate 0.20

As an application example of the present invention, this Formulation Example 5 is used after the use of Formulation Example 1 or Formulation Example 2.

It was confirmed that each of the above formulations 1 to 5 was a preparation having an effect that was satisfactory for the purpose of the present invention, similarly to the test results shown in Tables 1 to 2.

-End-

Claims (2)

Kojic acid and / or its glycoside ,
2,4-bis-[{4- (2-ethylhexyloxy) -2-hydroxy} -phenyl] -6- (methoxyphenyl) -1,3,5-triazine and / or 2,2′-methylenebis (6 A cosmetic for improving makeup paste, comprising- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol) . Siliconized titanium oxide, zinc oxide, silk powder or nylon powder of claim 1 Symbol placement cosmetic glue improved cosmetic, characterized in that it comprises at least one.