JP2902843B2 - Solid powder cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to solid powder cosmetics,
More specifically, the present invention relates to a solid powder cosmetic which has good original practical properties such as extensibility on the skin, a moisturizing property, a refreshing feeling, etc., and also has an adhesive property and a feeling of adhesion of an oily cosmetic.

[0002]

2. Description of the Related Art Solid powder cosmetics are mainly composed of a powder component, an oil component and a surfactant are added and mixed as a binder, and the mixture is pressed into a metal plate or a resin plate. It is a cosmetic that can be obtained by using a cosmetic tool such as a puff, a sponge, or a brush.

[0003] On the other hand, oil-based cosmetics are cosmetics obtained by shaping stick-shaped or casting into a metal plate or resin plate by adding and dispersing a powder component as necessary, and then molding the mixture. It is usually used in cosmetic tools such as puffs, sponges, brushes and brushes.

[0004] Solid powder cosmetics and oil-based cosmetics have their respective features, but when they are compared, solid powdered cosmetics are superior to oil-based cosmetics in terms of extensibility on the skin and cosmetics. Stickiness, refreshing feeling, simplicity, etc. are listed, while the inferior points are adhesion, close contact, moist feeling,
It is generally said that the vividness of the color is mentioned.

[0005] Various studies have hitherto been made to improve this disadvantage of solid powder cosmetics. In the simplest case, these disadvantages tend to be improved by increasing the blending ratio of the oily component. However, in ordinary solid powder cosmetics, the blending ratio of the oily component depends on the composition of the powdery component. Is considered to be at most about 20 parts by weight. Because, if more oily components are blended, it causes a surface solidification phenomenon called so-called caking, which can not be taken with cosmetic tools such as sponge, or oily components that can not be completely dispersed in powder components at the time of press molding are oozing out This is because drawbacks such as inconvenience occur. In addition, when the oily component is blended to just below the upper limit of the blending, the original characteristics of the solid powder cosmetic such as extensibility to the skin are impaired. It is empirically known that when silicone oil is used as the oily component, the upper limit of the oily component is higher than when no silicone oil is used, but in this case, there is a disadvantage that makeup loss over time is accelerated. I will.

There are many other reports, such as Japanese Patent Application Laid-Open No. 61-85309. However, any of these methods can provide a solid powder cosmetic having both the original characteristics of a solid powder cosmetic and the characteristics of an oily cosmetic. Had not been.

[0007] Accordingly, the present invention provides a solid powder cosmetic which has good stretchability to the skin, a moisturizing feeling, a refreshing feeling,
Excellent adhesion of oily cosmetics while maintaining simplicity, etc.
It is an object of the present invention to provide a solid powder cosmetic having a feeling of adhesion, a feeling of moisture, a vivid color and the like.

[0008]

In order to achieve the above object, the present invention has the following arrangement. That is, in a solid powder cosmetic containing 10 to 30% by weight of an oily component and 70 to 90% by weight of a powdery component, a side chain aliphatic alcohol having 8 to 18 carbon atoms and isooctanoic acid or isononanoic acid are used as the oily component. One or more ester compounds
-15% by weight (based on total amount) and 2-15% by weight (based on total amount) of one or more ester compounds of aliphatic alcohols having 6-8 carbon atoms and 12-hydroxystearic acid. It is a solid powder cosmetic.

The aliphatic alcohol which is a constituent component of the ester compound of isooctanoic acid or isononanoic acid and a side chain aliphatic alcohol used in the present invention is a side chain saturated aliphatic alcohol having 8 to 18 carbon atoms. And preferably isooctanol, isononal, isodecanol and isotridecanol.

In the present invention, at least one of these ester compounds is used. In the case where the side chain aliphatic alcohol has less than 8 carbon atoms, a satisfactory one cannot be obtained in terms of its organoleptic properties and stability.
If it exceeds 8, the viscosity of the ester compound is high, and satisfactory results cannot be obtained in terms of extensibility on the skin and a refreshing feeling. In the present invention, the above-mentioned ester compound is blended in an amount of 2 to 15% by weight. If the amount is less than 2 parts by weight, the effect is not remarkably exhibited. Can not be.

The aliphatic alcohol which is a constituent component of the ester compound of 12-hydroxystearic acid and an aliphatic alcohol used in the present invention is a straight-chain or side-chain saturated aliphatic alcohol having 6 to 8 carbon atoms. And preferably hexanol, octanol and isooctanol.

In the present invention, at least one of these ester compounds is used. If the aliphatic alcohol has less than 6 carbon atoms, the viscosity of the ester compound is low, so that the solid powder cosmetics containing the ester compound are inferior in adhesion to the skin and the like. In addition, carbon number 8
If the ester compound exceeds the above, the adhesiveness to the skin is increased due to the high viscosity of the ester compound, but the stretchability to the skin and the refreshing feeling are inferior. In the present invention, the above-mentioned ester compound is blended in an amount of 2 to 15% by weight.
If less than 15% by weight, the effect is not remarkably exhibited.
Exceeding the limit makes it impossible to obtain satisfactory extensibility on the skin and a refreshing feeling.

The powder components used in the present invention are those used in ordinary solid powder cosmetics, and include talc, titanium oxide, zinc oxide, mica, sericite, kaolin, iron oxide, gunjo, konjo, manganese violet. ,
At least one selected from various tar pigments, magnesium carbonate, nylon powder, silk powder, various pearl pigments including mica titanium, and the like are used.

As the oily component in the solid powder cosmetic of the present invention, the ester compound of isooctanoic acid or isononanoic acid and a side chain aliphatic alcohol and the ester compound of 12-hydroxystearic acid and an aliphatic alcohol are essential. If necessary, oily components usually used in the present invention, for example, liquid paraffin, squalane, petrolatum, solid paraffin, glyceryl trioctanoate, glycerin tri (caprylic / capric acid), silicone oil, and the like, may be combined as needed to obtain a total of 10 to 30 wt. %. When the amount of the oily component is less than 10% by weight, the composition cannot be particularly superior to conventional solid powder cosmetics in terms of adhesion to the skin, feeling of adhesion, moist feeling, and the like, and 30% by weight. If the amount is larger, the original characteristics of solid powder cosmetics such as extensibility on the skin, non-stickiness, and stickiness are impaired.

The solid powder cosmetic of the present invention may further contain a surfactant, a preservative, an antioxidant, an ultraviolet absorber, a fragrance and the like within a range that achieves the object of the present invention. The solid powder cosmetic of the present invention is applied to, for example, powder foundation, eyeshadow, cheek color, face powder and the like.

[0016]

The present invention will be described in more detail with reference to the following examples. The evaluation of the practical characteristics is as follows. In Examples and Comparative Examples, 12-hydroxystearic acid is described as oxystearic acid. (Evaluation of practical characteristics) The sample was applied to 20 female panelists, and the number of female panelists who answered "good" for each evaluation item of extensibility on skin, adhesion, makeup, and moist feeling was examined. , And the evaluation results are indicated by the symbols “◎, ○, Δ, ×”. In addition, "-" was displayed when there was a problem (defect) in the characteristics of the sample itself.

[Table 1]

Example 1 (Powder Foundation) (Ingredient) (Blending weight%) Isononyl isononanoate 2.0 Hexyl oxystearate 5.0 Glyceryl trioctanoate 1.0 Tri (caprylic / capric acid) glycerin 2.0 Titanium oxide 20.0 Bengala 0.9 Yellow iron oxide 2.8 Black iron oxide 0.2 Nylon powder 10.0 Talc 15.0 Mica 20.0 Sericite 21.1

Example 2 (Powder Foundation) Isodecyl isooctanoate 5.0 Octyl oxystearate 5.0 Squalane 3.0 Vaseline 2.0 Titanium oxide 20.0 Bengala 0.9 Yellow iron oxide 2.8 Black iron oxide 0 .2 Nylon powder 10.0 Talc 15.0 Mica 20.0 Sericite 16.1

Example 3 (Powder Foundation) Isooctyl isononanoate 15.0 Octyl oxystearate 5.0 Liquid paraffin 5.0 Titanium oxide 20.0 Bengala 0.9 Yellow iron oxide 2.8 Black iron oxide 0.2 Nylon Powder 10.0 Talc 5.0 Mica 20.0 Sericite 16.1

Comparative Example 1 (Powder Foundation) Liquid paraffin 6.0 Vaseline 2.0 Methylpolysiloxane 2.0 Titanium oxide 20.0 Bengala 0.9 Yellow iron oxide 2.8 Black iron oxide 0.2 Nylon powder 0 Talc 15.0 Mica 20.0 Sericite 21.1

Comparative Example 2 (Powder Foundation) Octyl oxystearate 7.0 Octyl dodecyl lactate 5.0 Methylphenyl polysiloxane 3.0 Titanium oxide 20.0 Bengala 0.9 Yellow iron oxide 2.8 Black iron oxide 0.0 2 Nylon powder 10.0 Talc 10.0 Mica 20.0 Sericite 21.1

Comparative Example 3 (Powder foundation) Liquid paraffin 12.0 Vaseline 4.0 Methylpolysiloxane 4.0 Titanium oxide 20.0 Bengala 0.9 Yellow iron oxide 2.8 Black iron oxide 0.2 Nylon powder 0 Talc 15.0 Mica 20.0 Sericite 11.1

Example 4 (Powder Eye Shadow) Isononyl Isooctanoate 5.0 Octyl Oxystearate 2.0 Tri (caprylic / capric acid) glycerin 3.0 Red No. 226 1.0 Gunjo 5.0 Mica Titanium 10.0 Conju Treated Mica Titanium 10.0 Carmine Treated Mica Titanium 15.0 Nylon Powder 5.0 Talc 15.0 Mica 10.0 Sericite 19.0

Example 5 (Powder eyeshadow) Isooctyl isononanoate 5.0 Hexyl oxystearate 8.0 Glyceryl trioctanoate 4.0 Isostearic acid-hardened castor oil 1.0 Red No. 226 1.0 Gunma 5.0 Titanium mica 10.0 Titanium mica treated with konjo 10.0 Titanium mica treated with carmine 15.0 Nylon powder 5.0 Talc 15.0 Mica 10.0 Sericite 11.0

Example 6 (Powder Eye Shadow) Isononyl Isononanoate 15.0 Octyl Oxystearate 15.0 Red No. 226 1.0 Gunjo 5.0 Mica Titanium 10.0 Konjo Treated Mica Titanium 10.0 Carmine Treated Mica Titanium 15.0 Nylon powder 5.0 Talc 5.0 Mica 10.0 Sericite 9.0

Comparative Example 4 (Powder Eye Shadow) Liquid Paraffin 6.0 Octyldodecanol 3.0 Vaseline 1.0 Red No. 226 1.0 Gunjo 5.0 Mica Titanium 10.0 Conju Treated Mica Titanium 10.0 Carmine Treatment Titanium mica 15.0 Nylon powder 5.0 Talc 15.0 Mica 10.0 Sericite 19.0

Comparative Example 5 (Powder Eye Shadow) Isooctyl Isononanoate 5.0 Glyceryl Trioctanoate 8.0 Methyl Polysiloxane 4.0 Isostearic Acid-Hardened Castor Oil 1.0 Red No. 226 1.0 Gunjo 5.0 Mica Titanium 10 0.0 Conju treated titanium mica 10.0 Carmine treated mica titanium 15.0 Nylon powder 5.0 Talc 15.0 Mica 10.0 Sericite 11.1

Comparative Example 6 (Powder Eye Shadow) Liquid Paraffin 15.0 Propylene Glycol Dicaprylate 10.5 Methyl Polysiloxane 2.5 Methyl Phenyl Polysiloxane 2.0 Red No. 226 1.0 Gunjo 5.0 Mica Titanium 0 Conju treated titanium mica 10.0 Carmine treated mica titanium 15.0 Nylon powder 5.0 Talc 5.0 Mica 10.0 Sericite 9.0

(Preparation method) The powder components are uniformly mixed and stirred, and the oil component uniformly mixed and dissolved is added thereto.
After the pulverization, the sample was stamped on a metal plate to obtain a sample, and the above test was performed. The results are shown in Tables 2 and 3.

[0030]

[Table 12]

[0031]

[Table 13]

(Characteristics) As shown in Tables 2 and 3, Comparative Examples 1 and 4 are not inferior to Examples 1 to 6 in terms of extensibility and makeup, but are inferior in adhesion and moist feeling. In Comparative Examples 2 and 5, in which the amount of the oily component was increased, it was found that the adhesiveness and the moist feeling were improved, but the extensibility and the stickiness were significantly reduced. Comparative Examples 3 and 6, which further contained more oily components, caused caking,
It turns out that it is inferior to Examples 3 and 6 in which the same amount of oily component is blended.

[0033]

Industrial Applicability The present invention provides a very useful solid powder cosmetic which has the extensibility and make-up properties of a solid powder cosmetic, and has more excellent adhesion and moist feeling than conventional solid powder cosmetics. Fees.

Claims (1)

(57) [Claims] 1. A solid powder cosmetic containing 10 to 30% by weight of an oily component and 70 to 90% by weight of a powdery component, wherein the oily component is a side chain aliphatic alcohol having 8 to 18 carbon atoms and isooctanoic acid. Or 2 to 15% by weight (based on the total amount) of at least one ester compound of isononanoic acid and 2 to 15% by weight of at least one ester compound of an aliphatic alcohol having 6 to 8 carbon atoms and 12-hydroxystearic acid.
A solid powder cosmetic comprising 15% by weight (based on the total amount).