JPH09132513A - Powdery make-up cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the powdery make-up cosmetic excellent in the durability of the cosmetic purpose, cosmetic characteristics and skin moisture of the cosmetic coated on skin by compounding a pigment subjected to a specific treatment with a prescribed amount of an oily component. SOLUTION: This powdery make-up cosmetic contains a pigment coated with DNA or its water-soluble salt and 5-30wt.% of an oily component. The DNA-coated pigment or the pigment coated with the water-soluble salt of the DNA is obtained by dissolving or dispersing the DNA or its water-soluble salt in purified water, charging a pigment in the solution or dispersion, homogeneously mechanically dispersing the pigment, drying the dispersion, and subsequently grinding the dried product. The DNA is preferably a DNA which is slightly difficult to dissolve in water and has an average mol.wt. of 500,000-5,000,000. The amount of the coating is approximately 0.2-20.0wt.%. All of organic pigments and inorganic pigments except water-soluble pigments among the pigments can be coated. The oily component includes caster oil, jojoba oil, squalane, and methylsilicone.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder make-up cosmetic composition having excellent cosmetic effect and moisturizing effect lasting. More specifically, the present invention relates to a powder make-up cosmetic composition which is excellent in the maintenance of the cosmetic purpose and cosmetic properties of the cosmetic composition applied on the skin and the maintenance of the skin moisture.

[0002]

2. Description of the Related Art Typical examples of cosmetics containing cosmetic pigments include makeup cosmetics such as foundations, lipsticks, eye shadows, and white powders. Conventionally,
Makeup cosmetics focused on making the appearance look attractive, and consumers wanted it too. However, recently, a make-up cosmetic having functionality has been desired, and its investigation has been advanced. As part of the powder makeup cosmetics of the present invention,
This is an examination of powdery cosmetics. Generally, powder makeup cosmetics are basically a two-component system consisting of a pigment and an oil component, so in order to enhance the desired functionality (persistence of the cosmetic effect and moisturizing effect), It is necessary to consider the selection and surface treatment of the pigment. In selecting the oil component, it is possible to effectively blend a highly adhesive oil component such as petroleum jelly or polymer ester, but its adhesiveness is limited to a short time immediately after application to the skin, Repeating expansion and contraction all the time, on the skin where sebum and sweat are secreted,
The makeup effect is maintained for 1 to 2 hours. Also,
As the makeup effect is lost, the moist feeling also changes to a dry feeling. Therefore, it is difficult to enhance the cosmetic effect and the durability of moist feeling only by selecting the oil component, and it is necessary to devise some kind of pigment. A single surface treatment may be considered for the purpose of improving the adhesiveness and maintaining the moisturizing effect, but the surface-coated pigments that have been developed for makeup cosmetics are silicone treatment, metal soap treatment, resin polymer treatment, etc. As can be seen from the above, most of the treatment purposes are for the purpose of modifying the surface of the pigment to be treated from hydrophilicity to water repellency, and were not suitable for the purpose of the present subject.

In view of such a situation, the inventors of the present invention have made earnest studies to improve the difficulties of the prior art, and as a result,
A powder makeup cosmetic comprising a pigment coated with DNA or a water-soluble salt thereof and 0.5 to 30% by weight of an oil component, and a powder having excellent durability of cosmetic effect and moisturizing effect. The inventors have found that it can be a make-up cosmetic and have completed the present invention.

[0004]

That is, an object of the present invention is to provide a powder makeup cosmetic composition which is excellent in the durability of the cosmetic effect and the moisturizing effect.

[0005]

In order to achieve the above object, the powder makeup cosmetic of the present invention has the following constitution. That is, the present invention provides a pigment coated with DNA or a water-soluble salt thereof and an oil component of 0.5 to 30% by weight.
The powdery makeup cosmetics are characterized by containing.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The DNA used in the present invention is deoxyribonucleic acid mainly extracted from salmon or herring testis, and its water-soluble salts include sodium salt, potassium salt, etc. Is the substance of.

The DNA-coated pigment of the present invention, or D
The NA-water-soluble salt-coated pigment is obtained by dissolving and dispersing DNA or a water-soluble salt of DNA in purified water, adding the pigment, uniformly mechanically dispersing, drying and pulverizing.

The DNA used in the present invention is preferably slightly soluble in water, and the average molecular weight in the range is 5
It is preferably from 0,000 to less than 5 million.

The upper limit of the coating amount of the DNA or the water-soluble salt of DNA used in the present invention is not particularly limited, but it is also an expensive component and preferably 0.2 to 0.2 in view of cost constraints. It is 20.0% by weight.

Further, the amount of the coating pigment of the DNA or the water-soluble salt of DNA of the present invention to be added to the powder makeup cosmetics depends on the type of product.

The type of pigment coated with the DNA or the water-soluble salt of DNA of the present invention is not particularly limited as long as it is not water-soluble, and all organic pigments and inorganic pigments can be coated. is there. Red 2 for organic pigments
01, Red No. 202, Red No. 226, Red No. 104 (1) Aluminum Lake, Yellow No. 4 Aluminum Lake, Yellow No. 5 Aluminum Lake, Blue No. 1 Aluminum Lake, etc. Tar dyes and gardenia dye-dyed silk powder Examples include natural pigment lakes such as safflower dye-dyed cellulose powder, safflower dye-dyed silk powder, Sikon dye-dyed silk powder, and high-molecular resin polymer powders such as nylon powder, acrylic powder, polyethylene powder, and silicon powder. Inorganic pigments include, for example, red iron oxide, yellow iron oxide, black iron oxide, sunflower, konjac, chrome hydroxide, manganese violet, cobalt hydroxide, cobalt titanate, titanium oxide, zinc oxide, alumina, magnesium oxide, zirconium oxide, Mica titanium, barium sulfate, calcium carbonate, mica, talc, kaolin, sericite and the like can be mentioned.

The oil component used in the present invention is generally used in cosmetics and is not particularly limited as long as it does not impair product stability and safety. And natural extracted oils such as castor oil, jojoba oil and olive oil, monoester oils, diester oils, synthetic oils such as triglycerin, liquid paraffin, squalane, hydrocarbon oils such as petrolatum, methyl silicone, methylphenyl silicone, cyclic silicone Silicone oil etc. Further, although the blending amount of the oil component used in the powder makeup cosmetic of the present invention varies depending on the variety used,
The suitable compounding amount range is preferably 0.5 to 30% by weight based on the total amount of the final product. 0.5% by weight
When the amount is less than the above, the effect of adhesion of the cosmetic to the skin becomes poor at the time of application to the skin, and when it is blended in an amount of more than 30% by weight, the elongation is too poor at the time of application to the skin. It becomes difficult to apply an appropriate amount of the cosmetic in a uniform state, and as a result, the makeup effect and the lasting of moist feeling are also impaired.

The powder make-up cosmetic of the present invention contains a surfactant, a moisturizer, a bactericide, an astringent, an ultraviolet absorber, an antioxidant, an antiseptic, a fragrance, etc. within a range not impairing the object of the present invention. It can be blended.

The powder makeup cosmetics of the present invention include, for example, foundation, white powder and eye shadow.

[0015]

EXAMPLES The present invention will be specifically described below with reference to examples, but prior to this, the evaluation items and evaluation methods will be described in detail. Note that the present invention is not limited to these.

Twenty female test panelists applied the sample of the example and the sample of the comparative example to the powder foundation and the white powder on the left and right half faces, and the powder eye shadow on the left and right eyelids evenly. The sustainability of the cosmetic effect was compared and evaluated according to the following 5 grades. [Dry feeling 3 hours after application] 5 ... Moist 4 ... Quite moist 3 ... Not dry but not moist 2 ... Slightly dry 1 ... Dry Yes [Persistence of makeup effect 3 hours after application] 5 ... No change at all 4 ... A little change but not a problem 3 ... Not good but not bad 2 ... Slightly bad 1 ... Poor

Examples 1 and 2 and Comparative Examples 1 to 3 (Powder Foundation) The formulations of Examples and Comparative Examples are as shown in Table 1. The powder foundations shown in Table 1 were prepared by a usual method and the above-mentioned test was conducted. The composition of the DNA potassium salt-coated pigment in Table 1 is as follows. [DNA potassium salt-coated pigment] (Component name) (parts by weight) Bengala 1.0 Yellow iron oxide 3.0 Black iron oxide 0.4 Titanium oxide 15.0 Mica 20.0 Sericite 20.6 Total 60.0

[0018]

[Table 1]

Table 2 shows the evaluation results of Examples 1-2 and Comparative Examples 1-3.

[0020]

[Table 2]

As shown in Table 2, the examples were obviously superior to the comparative examples in terms of dry feeling after 3 hours and cosmetic effects.

Examples 3 to 4 and Comparative Examples 4 to 6 (Powder Eyeshadow) Table 3 shows the formulations of each Example and Comparative Example. The powder eye shadows shown in Table 3 were prepared by the usual method and the above test was conducted. The composition of the DNA-coated pigment shown in Table 3 is as follows. [DNA coating pigment] (Component name) (parts by weight) Bengala 0.5 Yellow iron oxide 1.2 Black iron oxide 0.1 Gunjo 3.7 Titanium oxide 5.2 Mica titanium 4.5 Mica 34.8 Sericite 10.0 Nylon powder 5.0 Total 65.0

[0023]

[Table 3]

Table 4 shows the evaluation results of Examples 3 to 4 and Comparative Examples 4 to 6.

[0025]

[Table 4]

As shown in Table 4, the examples were obviously superior to the comparative examples in terms of dry feeling after 3 hours and cosmetic effects.

Examples 5 to 6 and Comparative Examples 7 to 9 (white powder) Table 5 shows the formulations of each Example and Comparative Example. The white powder shown in Table 5 was prepared by a usual method, and the above test was conducted. The composition of the DNA sodium salt-coated pigment in Table 5 is as follows. [DNA sodium salt-coated pigment] (Component name) (parts by weight) Red iron oxide 0.2 Yellow iron oxide 0.7 Black iron oxide 0.1 Titanium oxide 4.0 Talc 63.0 Total 68.0

[0028]

[Table 5]

Table 6 shows the evaluation results for Examples 5-6 and Comparative Examples 7-9.

[0030]

[Table 6]

As shown in Table 6, the examples were obviously superior to the comparative examples in terms of dry feeling after 3 hours and cosmetic effects.

[0032]

As described above, the powder makeup cosmetics comprising the pigment of the present invention coated with the DNA or the water-soluble salt thereof and the oil component are used to prevent makeup deterioration due to sebum or sweat. It is clear that the cosmetic effect and the moisturizing effect are excellent in durability.

Claims (1)

[Claims] 1. A powder makeup cosmetic, comprising a pigment coated with DNA or a water-soluble salt thereof and 0.5 to 30% by weight of an oil component.