JP2002275034A - Powder cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a powder cosmetic having excellent feeling and excellent cosmetic durability (lasting property). SOLUTION: The powder cosmetic contains a wax composition consisting of a hydrocarbon component containing 60-100 pts.mass of an isoparaffin and 0-40 pts.mass of a normal paraffin, and a silicone oil which is liquid at normal temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder cosmetic, and more particularly, to a powder cosmetic having a good feel and a long lasting makeup.

[0002]

2. Description of the Related Art Powder cosmetics include foundations,
Makeup cosmetics such as white powder, blusher, eye shadow and eyebrow, and body cosmetics such as body powder and baby powder are commercially available. In these powder cosmetics, a feeling of use such as good elongation and adhesion on the skin, a good touch such as a smooth feeling, and a lack of makeup collapse have been required.

[0003] Conventionally, in powder cosmetics, in order to improve the persistence of the cosmetic effect, a powder that absorbs sweat or sebum is blended, an oily agent having high adhesion to the skin is blended, There have been methods such as coating beforehand on the body and blending, and water-repellent treatment with a silicone compound or a fluorine compound on the powder so that the powder is not wetted by sweat or sebum.

According to Japanese Patent Application Laid-Open No. 2000-128767, when a wax composition containing isoparaffin as a main component is incorporated into a makeup cosmetic, the wax composition containing isoparaffin as a main component spreads on the skin of a makeup cosmetic. It describes improving adhesion, preventing stickiness of the skin, and preventing greasy luster.

[0005] However, this publication mainly discusses oily cosmetics, and the above description of the properties of the powdery cosmetics in which the wax composition containing isoparaffin as a main component is blended cannot be found. However, when the oil-based cosmetic is simply used as a powder cosmetic, the spreadability and the softness of the touch, which are the characteristics suitable for the powder cosmetic, are insufficient.

[0006]

Under such circumstances, the present invention has good spreadability and adhesion on the skin, is excellent in soft touch, has no sticky skin, no greasy luster, and has long-lasting makeup. An object of the present invention is to provide a powder cosmetic excellent in (lasting property).

[0007]

Means for Solving the Problems In view of the above circumstances, the present inventors have conducted intensive studies and as a result, have found that the above object can be achieved by using the above-mentioned wax composition and silicone oil in combination. completed.

That is, the present invention relates to isoparaffin 60
-100 parts by mass and 0-40 parts by mass of normal paraffin, and the hydrocarbon has 20 carbon atoms.
A powder cosmetic comprising: a wax composition having a melting point of from 30 to 55 ° C. and a silicone oil which is liquid at ordinary temperature. Further, in the powder cosmetic, the content (A) of the wax composition: the content (B) of the liquid silicone oil at room temperature is (B) / (A)> 0.2. It is in.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail.

The isoparaffins 60 to 60 used in the present invention
A wax composition comprising a hydrocarbon containing 100 parts by mass and 0 to 40 parts by mass of normal paraffin (hereinafter, simply referred to as the present wax composition) contains isoparaffin and normal paraffin in the above content ranges. It is a wax composition comprising a hydrocarbon. It may contain a hydrocarbon other than isoparaffin and normal paraffin. The constituent hydrocarbons preferably have 20 to 60 carbon atoms, particularly preferably 20 to 45 carbon atoms. Further, those having a melting point of 30 to 70 ° C are preferable. More preferably, it is 30 to 55 ° C. Hydrocarbon has 20 carbon atoms
~ 45 and a melting point of 30 ~ 55 ° C is most preferred. Outside this range, problems such as loss of spreadability during application and softness per skin may occur, and the dispersibility of the wax itself in the powder may be undesirably reduced. Among the wax compositions containing isoparaffin as a main component used in the present invention, the most preferable one is, for example, “EMW-0003” manufactured by Nippon Seiro Co., Ltd.

In the present invention, the present wax composition is preferably incorporated in the powder cosmetic in an amount of 0.1 to 12% by mass. The proportion of the wax composition in the binder in the powder cosmetic of the present invention is preferably in the range of 10 to 65% by mass. If the amount is less than 10% by mass, the effects of adhesion and long-lasting makeup as a solid component may not be sufficiently exhibited. If the amount exceeds 65% by mass, dispersibility may deteriorate, and smoothness may be lost or powder may be uniform. Since it does not get wet, it may feel powdery, which is not preferable.

The binder includes the present wax composition and silicone oil, and functions as a volatile or non-volatile oil agent and a solvent usually used in cosmetics, and as a binding aid such as a water-soluble or oil-soluble resin. If it is, it can be used without particular limitation. Specifically, for example,
Waxes such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax and candelilla wax, solid and semi-solid oils such as higher fatty acids and higher alcohols; hydrocarbon oils such as squalane and liquid paraffin; isoninyl isononanoate and glyceryl isostearate Fluid oils such as ester oils such as diglyceride and triglyceride; fluorinated oils such as perfluoropolyether, perfluorodecalin and perfluorooctane; and water-soluble and oil-soluble polymers. In particular, isononyl isononanoate, isotridecyl isononanoate, isotridecyl isostearate, isopropyl isostearate, propylene glycol dicaprylate, neopentyl glycol dioctanoate, isocetyl myristate, octyl dodecyl lactate, diisostearyl malate, tri (caprylic capric acid) An oil agent that has the property of increasing the miscibility between the wax composition and the liquid silicone at room temperature at a temperature higher than the dissolution temperature of the binder, such as glycerin, glycerin tri-2-ethylhexanoate, liquid paraffin, liquid isoparaffin, squalane, olive squalane, etc. Is preferred.

As the silicone oil which is liquid at room temperature used in the present invention, those which are usually used in cosmetics can be used without any particular limitation. Examples thereof include chain silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane, and octamethyl. Cyclic silicone oil such as cyclotetrasiloxane, decamethylcyclopentasiloxane, polyether-modified organopolysiloxane, fluoroalkyl / polyoxyalkylene co-modified organopolysiloxane, alkyl-modified organopolysiloxane, terminal-modified organopolysiloxane, fluorine-modified organopoly Examples thereof include siloxane and amino-modified organopolysiloxane, and one or more of these can be blended.

In the present invention, the binder preferably contains a silicone oil which is liquid at room temperature together with the present wax composition. In particular, the compounding amount of the liquid silicone oil is such that the compounding amount (B) of the liquid silicone oil at room temperature and the compounding amount (A) of the present wax composition satisfy (B) / (A)> 0.2. Preferably, there is. If it is less than 0.2, the effect of improving the dispersibility of the wax composition by the liquid silicone oil at room temperature may not be sufficient, and there may be a problem on the touch surface such as elongation and smoothness. If it exceeds 0.2, the dispersibility of the wax becomes good, and the effects of the adhesion of the solid wax and the durability of the makeup are sufficiently exhibited.

In the powder cosmetic of the present invention, powder generally used for cosmetics can be used without any limitation. For example, dyes and lake dyes such as Red No. 104 aluminum lake, Red No. 102 aluminum lake, Red No. 226, Red No. 201, Red No. 202, Blue No. 1 aluminum lake, Yellow No. 5 aluminum lake, Yellow No. 203 barium lake, Nylon powder, silk powder, urethane powder, Teflon (registered trademark) powder, silicone powder, polymethyl methacrylate powder, cellulose powder, hemp cellulose powder, silicone elastomer spherical powder, polymer powder such as polyethylene powder, iron oxide yellow , Black pigments, black iron oxide, chromium oxide, carbon black, colored pigments such as ultramarine blue, navy blue, etc., white pigments such as zinc oxide, titanium oxide, cerium oxide, barium sulfate, talc, mica, sericite, kaolin, barium sulfate plate etc Extender pigments, titanium mica, titanium dioxide-coated bismuth oxychloride, iron oxide mica titanium, navy blue treated mica titanium, carmine treated mica titanium, bismuth oxychloride, fish scale foil and other pearl pigments, magnesium carbonate, aluminum silicate, magnesium silicate and other metals Inorganic powders such as salt, silica, spherical silica, and alumina, bentonite, smectite, boron nitride, fine titanium oxide, fine zinc oxide, fine alumina titanium-treated oxide, fine silica titanium-treated titanium oxide, and the like can be given. The shape (spherical shape, rod shape, needle shape, plate shape, irregular shape, scaly shape, spindle shape, etc.) and size of these powders are not particularly limited.

The above-mentioned powder may be subjected to conventionally known various surface treatments such as silicone treatment, pendant treatment, silane coupling treatment, titanium coupling treatment, fluorine compound treatment, oil agent treatment, metal soap treatment, wax treatment, N
-Even if acylated lysine treatment, polyacrylic acid treatment, amino acid treatment, water-soluble polymer compound treatment, resin treatment, metal oxide treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment, viscosity treatment, etc. are performed , You don't have to.

Examples of the powder cosmetics of the present invention include foundation, eyeshadow, pressed powder, loose powder, face powder, face color, cheek color, eyebrow, body powder, perfume powder, lip color and the like.

In the powder cosmetic of the present invention, together with the above-mentioned components, various components usually used in cosmetics, for example, surfactants, ultraviolet protective agents (including organic and inorganic types.
A or B).
Preservatives, fragrances, humectants, physiologically active ingredients, salts, solvents, antioxidants, chelating agents, neutralizing agents, pH adjusters, insect repellents and the like can be used.

[0019]

The present invention will be described below with reference to examples and comparative examples, but the scope of the present invention is not limited by the examples. In addition, the compounding amount in an Example shows all mass%. Evaluation methods for various properties of the powder cosmetics used in the examples and comparative examples are shown below. In the following, EMW-0003 (manufactured by Nippon Seiro Co., Ltd.) was used as the wax composition. The wax composition contains about 3 paranormal paraffins (17 to 33 carbon atoms; 24.7 average carbon atoms).
It has a composition of 2% and 68.5% of isoparaffin (carbon number 21 to 35; average carbon number 27.9), and has a melting point of 49.5 ° C.

A panel of skin usefulness evaluation specialists is prepared for each evaluation item by 10 persons (however, panelists may be duplicated depending on the item), and evaluated according to the following evaluation criteria, and the average score of all panelists Was used as the evaluation result. Therefore, the higher the score, the higher the usefulness for the evaluation item.

Evaluation criteria Score Effect is felt high 5 Effect is felt 4 Effect is felt slightly 3 Effect is felt only slightly 2 Effect is not felt 1

Examples 1 to 5 and Comparative Examples 1 to 5 Powder foundations were prepared according to the formulation shown in Table 1 and the following production method.

[0023]

[Table 1]

Manufacturing method The oily component is heated and mixed, and slowly added from above the previously mixed powder component, and further mixed until uniform, then passed through a 60 mesh and placed in a metal plate using a mold. The product was obtained by stamping.

Examples 6 to 8 Powder eyeshadow was prepared according to the formulation shown in Table 2 and the following production method.

[0026]

[Table 2]

Manufacturing method The oily component is heated and mixed, and slowly added from above the previously mixed powder component, and further mixed until uniform, then passed through a 60 mesh and placed in a metal plate using a mold. The product was obtained by stamping.

From the results shown in Tables 1 and 2, the examples of the present invention have better feelings such as spreadability and softness at the time of application and longer lasting (lasting properties) than the comparative examples. It turned out to be excellent.

Application Example 1 (Powder Foundation) Wax Composition (EMW-0003) 4.0% Methylpolysiloxane 1.8 Isononyl Isononanoate 1.8 2-Ethylhexyl Paramethoxycinnamate 1.4 Hydroxystearic Acid 2- Ethylhexyl 1.0 Stearyl glycyrrhetinate 0.1 Carrot extract 0.1 Diou extract 0.1 Paraoxybenzoic acid ester 0.2 Fragrance 0.1 Nε-lauroyl-L-lysine-treated coloring pigment 3.0 Nε-lauroyl-L-lysine Treatment 12.0 Strongly cohesive titanium oxide Zinc myristate treated titanium oxide 10.0 Silicon treated fine particle titanium oxide 3.0 Silicon treated hemp cellulose powder 15.0 Silicon treated synthetic phlogopite 20.0 Zinc myristate treated sericite 21. 4 Alkaline polyacrylate Le 5.0

A powder foundation having the above composition was prepared according to a conventional method, and the above test was carried out. As a result, all the items were good.

[0031]

As described above, the present invention provides a good feeling by blending a wax composition mainly containing isoparaffin having a specific composition and a silicone oil which is liquid at ordinary temperature. It is clear that a powder cosmetic having excellent makeup durability (lasting property) can be obtained.

Claims (2)

[Claims] 1. A powder cosmetic comprising a wax composition comprising a hydrocarbon containing 60 to 100 parts by mass of isoparaffin and 0 to 40 parts by mass of normal paraffin, and a silicone oil which is liquid at normal temperature. . 2. Content of wax composition (A): The content (B) of liquid silicone oil at normal temperature is (B) / (A)
2. The powder cosmetic according to claim 1, wherein the ratio is> 0.2.