JP2016098219A - Skin cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin cosmetic capable of achieving improvement in use feeling and moisturizing effect sustainability while securing spreadability or springy feeling on the skin even if the content of polyethylene glycol is reduced.SOLUTION: There is provided a skin cosmetic ML which contains component (a) an alkyl glucoside derivative, component (b) a polyethylene glycol and component (C) a polymer compound, wherein the content of the polyethylene glycol is 0.1 to 10.0 wt.%.SELECTED DRAWING: None

Description

  The present invention relates to a skin cosmetic.

  Skin cosmetics that are applied to the skin of the human body, such as the facial skin, neck and shoulders, such as the cheeks and eyes, are required to increase the spread and firmness on the skin, improve the feeling of use, and maintain the moisturizing effect. It is done. In order to meet these demands, a technique containing a glycerin derivative and polyethylene glycol has been proposed (Patent Document 1).

JP 2012-197253 A

  However, Patent Document 1 is satisfactory in terms of stickiness because the amount of liquid glycerin derivative and polyethylene glycol having an average molecular weight of 1000 to 5000 increases with respect to solid polyethylene glycol having an average molecular weight of 10,000 to 50,000. It wasn't.

  In order to achieve at least a part of the problems described above, the present invention can be implemented as the following forms.

  (1) According to one aspect of the present invention, a skin cosmetic is provided. This skin cosmetic contains the following components (a) to (c): (a) alkyl glucoside derivative; (b) polyethylene glycol; (c) polymer compound; component (b) content of polyethylene glycol is 0.1 to 10.0% by mass (hereinafter referred to as wt%). According to this form of the skin cosmetic, only by containing the component (b) polyethylene glycol in a small amount of 0.1 to 10.0 wt%, while ensuring a stretch and firmness on the skin, Improves the feeling of use and sustains the moisturizing effect.

  The component (a) alkyl glucoside derivative in the skin cosmetic of the above form is a liquid component and functions as a surfactant and a lubricant, and there is no particular limitation on the composition thereof. For example, methyl gluces-10, methyl gluces-20, PPG-10 methyl glucose, PPG-20 methyl glucose, alkyl (C12-20) glucoside, decyl glucoside, hydroxystearyl glucoside, polyoxypropylene carboxyalkyl (C14-18) diglucoside, lauryl A glucoside, (C12-20) alkyl glucoside, etc. can be used. Among them, from the viewpoint of application feeling, spread on the skin, rich feeling of use, durability of the moisturizing effect, and firmness to the skin, from methylgluces-10, methylgluces-20, PPG-10 methylglucose, PPG-20 methylglucose It is preferable to use one or two or more selected.

  Component (b) polyethylene glycol is a solid polymer compound in the form of a wax or paste, is water-soluble, and can take various molecular weights by changing the degree of polymerization. As long as this component (b) polyethylene glycol functions as a lubricant in the form of wax or paste, there is no particular limitation on the composition, molecular weight and the like. For example, PEG-20, PEG-40, PEG-75, PEG-150, PEG-400, etc. can be used as polyethylene glycol having a molecular weight of 1000 or more. Among them, one or two kinds selected from PEG-75, PEG-150, and PEG-400 from the viewpoint of application feeling, spreading on the skin, rich feeling of use, durability of the moisturizing effect, and elasticity. It is preferable to use the above.

  If a component (c) high molecular compound functions as a viscosity regulator, there will be no restriction | limiting in particular about the composition, molecular weight, etc. For example, carbomer, acrylate copolymer, (acrylates / alkyl acrylate (C10-30)) crosspolymer, sodium polyacrylate, polyvinyl alcohol, cellulose gum, xanthan gum, gum arabic, guar gum, sodium carboxymethyl starch, etc. it can. Among them, use of one or more selected from carbomer, cellulose gum, xanthan gum from the viewpoint of application feeling, spreading on the skin, rich feeling of use, durability of the moisturizing effect, and elasticity of the skin is used. preferable.

  (2) In the skin cosmetic of the above form, the content of the component (a) alkyl glucoside derivative may be 0.1 to 10.0 wt%. With such a content, a moisturizing feeling can be created by the component (a) alkyl glucoside derivative.

It is explanatory drawing which writes together the content and evaluation result for every containing component about the Example of skin cosmetic ML, and its comparative example. It is explanatory drawing which writes together and shows each component content and evaluation result at the time of changing the containing condition of a component (a) alkyl glucoside derivative with an Example and a comparative example. It is explanatory drawing which writes together and shows each component content and evaluation result at the time of changing the containing condition of a component (c) polymer compound with an Example and a comparative example.

  Hereinafter, embodiments of the present invention will be described in detail.

  Next, prescription of skin cosmetic ML will be described. FIG. 1 is an explanatory view showing the contents and evaluation results for each of the components contained in Examples and Comparative Examples of skin cosmetic ML. As shown in the figure, skin cosmetic ML of the present embodiment contains component (a) polyoxyethylene methyl glucoside, which is an alkyl glucoside derivative, component (b) polyethylene glycol, and component (c) a polymer compound. . In addition, skin cosmetic ML contains various components that are expected to be beneficial in general skin cosmetics as shown in the figure. In FIG. 1, each component other than components (a) to (c) includes, for example, a pH adjuster, a preservative, a metal sequestering agent, a viscosity adjuster, a solvent other than purified water, a solubilizer, a flavoring agent, and a wetness. As an agent and the like, it is used in the same manner as general skin cosmetics. In addition, the value which shows the component content of the Example of FIGS. 1-3 and a comparative example shows the mass% (wt%) unless there is particular description.

  The component (a) alkyl glucoside derivative is in a liquid state and functions as a hypoallergenic surfactant and a wetting agent as a cosmetic, and a refined product by an existing method can be obtained. As shown in FIG. 1, the skin cosmetic ML of the present embodiment contains, for example, methylgluces-20 as a component (a) alkyl glucoside derivative in a content within the range described below. Component (b), polyethylene glycol, is a waxy polymer compound that is water-soluble, purified by existing techniques, and available as various chemicals, reagents, wetting agents, and the like. As shown in FIG. 1, skin cosmetic ML of the present embodiment includes, as component (b) polyethylene glycol, for example, polyethylene glycol 4000 (PEG-75), polyethylene glycol 6000 (PEG-150), polyethylene glycol 20000 ( PEG-400) is contained in a content in the range described below, or one or more. The component (c) polymer compound is available as a viscosity modifier, and in the present embodiment, for example, carbomer, cellulose gum, and xanthan gum are contained. These polymer compounds such as carbomer, cellulose gum, and xanthan gum function as viscosity modifiers, so that they are useful for maintaining the feeling of film, and the content thereof is a content that can be usually adopted as skin cosmetic ML. It is.

  Various other components other than the components (a) to (c) shown in FIG. 1 can be appropriately selected and adopted. However, in the skin cosmetic ML of the present embodiment, the content of all the illustrated components is illustrated. It was made to contain. In addition, you may make it contain in the skin cosmetic ML of this embodiment also about components other than the above normally employ | adopted as general skin cosmetic ML.

  Skin cosmetic ML containing each component shown in FIG. 1 is prepared and refined by an existing method. For example, component (a) alkyl glucoside derivative, component (b) polyethylene glycol and other appropriate components are dissolved in a hot water bath as the same phase, and then other components including component (c) polymer compound are sequentially added. Mix and stir.

  Next, examples and comparative examples included in the skin cosmetic ML of the present embodiment will be described with reference to FIG. Examples 1 to 6 and Comparative Examples 1 and 2 shown in FIG. 1 compare other components (a) alkyl glucoside derivatives and components (c) in order to contrast the benefits of component (b) polyethylene glycol adopted in the present invention. The polymer compound and other components all have the same content. Moreover, about various other components other than component (a)-(c) shown in FIG. 1, in order to eliminate the influence by including these components and to evaluate said benefit, it is the same content and did. The same applies to FIG.

  About each Example and each comparative example refine | purified with the component content shown in FIG. 1, the feeling of application | coating, the spreading to skin, a feeling of use, stickiness, moisture retention, and a firm feeling were evaluated as follows.

The feeling of application was given to 10 female panelists using each of the skin cosmetics ML of each of Examples 1 to 6 and Comparative Examples 1 and 2 on a predetermined skin surface such as a cheek. Sensory evaluation was obtained about the coating feeling about skin cosmetic ML. The coating feeling in FIG. 1 was evaluated in four stages as follows.
A: 8 to 10 persons judged that the feeling of application was good. ;
○: 5 to 7 persons judged that the feeling of application was good. ;
(Triangle | delta): Three to four persons determined that the feeling of application | coating was good. ;
X: 0-2 persons judged that a feeling of application was good.

Spreading to the skin was made by using 10 female panelists using each of the skin cosmetics ML of each of Examples 1 to 6 and Comparative Examples 1 and 2 on a predetermined skin surface such as a cheek. Sensory evaluation was obtained about the spread to the skin about each skin cosmetic ML. The spread on the skin in FIG. 1 was evaluated in four stages as follows.
A: 8 to 10 persons judged that the spread was light and smooth. ;
○: 5 to 7 persons judged that the spread was light and smooth. ;
Δ: 3 to 4 persons judged that the spread was light and smooth. ;
X: 0 to 2 persons were judged to be light and smooth.

The feeling of use was obtained by using 10 female panelists using each of the skin cosmetics ML of each of Examples 1 to 6 and Comparative Examples 1 and 2 on a predetermined skin surface such as a cheek. Sensory evaluation was obtained about the feeling of use about skin cosmetic ML. The usability in FIG. 1 was evaluated in four stages as follows.
A: 8 to 10 people judged to have a rich feeling of use. ;
A: 5 to 7 persons judged to have a rich feeling of use. ;
(Triangle | delta): 3-4 persons determined with the rich usability. ;
X: It was determined that 0 to 2 people had a rich feeling of use.

Stickiness was made by using 10 female panelists using each of the skin cosmetics ML of each of Examples 1 to 6 and Comparative Examples 1 and 2 on a predetermined skin surface such as a cheek. Sensory evaluation was obtained about the stickiness about cosmetic ML. The stickiness in FIG. 1 was evaluated in four stages as follows.
A: 8 to 10 people judged that there was little stickiness. ;
A: 5 to 7 people judged that there was little stickiness. ;
Δ: 3 to 4 people judged that there was little stickiness. ;
X: 0-2 persons judged that there was little stickiness.

The moisturizing sensation was given to 10 female panelists using each of the skin cosmetics ML of each of Examples 1 to 6 and Comparative Examples 1 and 2 on a predetermined skin surface such as a cheek. Sensory evaluation was obtained about the moisturizing feeling about skin cosmetic ML. The moisturizing feeling in FIG. 1 was evaluated in four stages as follows.
(Double-circle): 8-10 persons judged having the sustainability of the outstanding moisturizing effect. ;
A: 5 to 7 persons determined that there was a long-lasting moisturizing effect. ;
(Triangle | delta): Three to four persons judged having the sustainability of the outstanding moisturizing effect. ;
X: 0 to 2 persons determined that there was a persistence of an excellent moisturizing effect.

The feeling of elasticity is crawled to 10 female panelists by using each of the skin cosmetics ML of each of Examples 1 to 6 and Comparative Examples 1 and 2 on a predetermined skin surface such as a cheek. Sensory evaluation was obtained about the firmness about skin cosmetic ML. The tension feeling in FIG. 1 was evaluated in four stages as follows.
(Double-circle): It determined with 8-10 persons giving firmness to skin. ;
○: 5 to 7 persons determined to give the skin firmness. ;
(Triangle | delta): It determined with 3-4 persons giving firmness to skin. ;
X: It was determined that 0 to 2 persons gave the skin firmness.

  As is clear from FIG. 1, Examples 1 to 6 all have a good feeling of application and spread on the skin, and also have a rich feeling of use and little stickiness. An excellent and suitable tension feeling could be obtained. On the other hand, in Comparative Example 1, the durability of the moisturizing effect was insufficient, and in Comparative Example 2, stickiness was not sufficiently suppressed. Comparative Example 1 is different from Examples 1 to 6 only in that it does not contain any component (b) polyethylene glycol, and Example 1 is shown for other components (a) alkyl glucoside derivatives and components (c) polymer compounds. It is contained with the same content as ~ 6. In Comparative Example 2, only the content of component (b) polyethylene glycol is different, and the other components (a) alkyl glucoside derivative and component (c) polymer compound are the same as in Examples 1-6. Contains by content. Nevertheless, since Comparative Example 1 lacks the durability of the moisturizing effect, and Comparative Example 2 did not sufficiently suppress stickiness, according to the skin cosmetic ML of Example, component (b) polyethylene glycol (polyethylene Glycol 4000 (PEG-75), polyethylene glycol 6000 (PEG-150), polyethylene glycol 20000 (PEG-400)), component (a) alkylglucoside derivative (methylgluces-20) and component (c) polymer compound (carbomer) , Cellulose gum, and xanthan gum), both provide a good feeling of application and spread on the skin, are rich in feeling of use, have little stickiness, and have excellent moisturizing effects. A firm feeling can be obtained.

  Skin cosmetic ML of Examples 1 to 6 includes component (b) polyethylene glycol 4000 (PEG-75), polyethylene glycol 6000 (PEG-150), and polyethylene glycol 20000 (PEG-400) as polyethylene glycol. Or it contains 2 types and the content range contains in the range of 0.1-10.0 wt%. Therefore, if the component (b) polyethylene glycol is contained at a content of 0.1 to 10.0 wt%, a good feeling of application and spread on the skin can be obtained, and the feeling of use is rich and less sticky. In addition, the durability of the moisturizing effect is excellent, and a suitable tension can be obtained. Furthermore, if the component (b) polyethylene glycol is contained in the range of 0.5 to 5.0 wt%, it is possible to obtain a richer feeling of use or to maintain the moisturizing effect.

  Next, the usefulness of the component (a) alkyl glucoside derivative adopted in the present invention will be described. FIG. 2 is an explanatory diagram showing both the component contents and the evaluation results when the contents of the component (a) alkyl glucoside derivative are changed in Examples and Comparative Examples. In Examples 7 to 12 and Comparative Examples 3 to 4 shown in FIG. 2, component (b) polyethylene glycol and component (c) polymer compound are used to compare the benefits of the (a) alkyl glucoside derivative adopted in the present invention. The other contents were all the same.

  Each Example and each Comparative Example purified with the component content shown in FIG. 2 were also evaluated as described above for the feeling of application, spreading to the skin, feeling of use, stickiness, moisture retention and firmness. Then, as is clear from FIG. 2, Examples 7 to 12 all had good application feeling and spread on the skin, and also had a rich feeling of use and little stickiness, and the durability of the moisturizing effect. In addition, it was possible to obtain a suitable elasticity. In contrast, Comparative Example 3 lacked the sustainability and firmness of the moisturizing effect, and Comparative Example 4 was insufficient in suppressing stickiness. Comparative Example 3 is different from Examples 7 to 12 only in that it does not contain any component (a) alkyl glucoside derivative, and Example 7 shows other components (b) polyethylene glycol and component (c) polymer compound. It is contained with the same content as ~ 12. In Comparative Example 4, only the content of the component (a) alkyl glucoside derivative is different, and the other component (b) polyethylene glycol and component (c) polymer compound are the same as in Examples 7-12. Contains by content. Nevertheless, since Comparative Example 3 lacked the sustainability and firmness of the moisturizing effect, and Comparative Example 4 had insufficient suppression of stickiness, according to skin cosmetic ML of Example, component (a) alkyl A glucoside derivative (methylgluces-10, methylgluces-20, PPG-10 methylglucose, PPG-20 methylglucose), component (b) polyethylene glycol (polyethylene glycol 6000 (PEG-150)) and component (c) polymer compound ( (Carbomer, Cellulose Gum, Xanthan Gum) are all included in this product, so that they can be applied well and have a good feeling on the skin. A firm feeling can be obtained.

  Skin cosmetic ML of Examples 7-12 contains 1 type or 2 types or more of methyl glucose-10, methyl glucose-20, PPG-10 methyl glucose, and PPG-20 methyl glucose as a component (a) alkyl glucoside derivative. The content range is 0.1 to 10.0 wt%. Therefore, if the component (a) alkyl glucoside derivative is contained at a content of 0.1 to 10.0 wt%, a good feeling of application and spread on the skin can be obtained, and the feeling of use is also rich and sticky. There are few, it is excellent also in the sustainability of a moisturizing effect, and a suitable firmness can be obtained. Furthermore, if the component (a) alkyl glucoside derivative is contained in the range of 0.5 to 5.0 wt%, it is possible to obtain a richer feeling of use or to maintain the moisturizing effect.

  Next, advantages provided by the component (c) polymer compound (carbomer, cellulose gum, xanthan gum) will be described. FIG. 3 is an explanatory view showing the content of each component and the evaluation results when the content of the component (c) polymer compound is changed between the example and the comparative example. In Examples 13 to 20 and Comparative Example 5 shown in FIG. 3, component (a) alkyl glucoside derivative and component (b) polyethylene glycol and All other components have the same content.

  Each Example and each Comparative Example purified with the component content shown in FIG. 3 were also evaluated as described above for the feeling of application, spreading to the skin, feeling of use, stickiness, moisture retention and firmness. Then, as is clear from FIG. 3, Examples 13 to 20 all had a good feeling of application and spread on the skin, and also had a rich feeling of use and little stickiness, and the durability of the moisturizing effect. In addition, it was possible to obtain a suitable elasticity. On the other hand, Comparative Example 5 lacked the durability of the moisturizing effect, the firmness and the feeling of use. Comparative Example 5 is different from Examples 13 to 20 only in that it does not contain any component (c) polymer compound, and Example 13 is used for other components (a) alkyl glucoside derivatives and component (b) polyethylene glycol. It is contained with the same content as ~ 20. Nevertheless, since Comparative Example 5 lacked the persistence of moisturizing effect, the firmness and the feeling of use, according to the skin cosmetic ML of the examples, component (c) polymer compound (carbomer, cellulose gum, xanthan gum) ) Together with component (a) alkyl glucoside derivative (methylgluces-20) and component (b) polyethylene glycol (polyethylene glycol 20000 (PEG-400)), both have good coating feeling and spread on the skin. In addition, the feeling of use is rich and less sticky, the durability of the moisturizing effect is excellent, and a suitable firmness can be obtained.

  Skin cosmetic ML of Examples 13 to 20 contains one or more kinds of carbomer, cellulose gum and xanthan gum as component (c) polymer compound, and the content range thereof is 0.01 to 2.0 wt. % In the range. Therefore, if the component (c) polymer compound is contained in a small amount of 0.01 to 2.0 wt%, a good feeling of application and spread on the skin can be obtained, and the feeling of use is also rich and sticky. The moisture retention effect is excellent, and a suitable tension can be obtained. Further, when the component (c) polymer compound is contained in the range of 0.05 to 1.0 wt%, a richer feeling of use can be obtained and the durability of the moisturizing effect is excellent.

  The present invention is not limited to the above-described embodiment, and can be realized with various configurations without departing from the spirit of the present invention. For example, the technical features of the embodiments corresponding to the technical features in each embodiment described in the summary section of the invention are intended to solve part or all of the above-described problems, or part of the above-described effects. Or, in order to achieve the whole, it is possible to replace or combine as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

Claims (4)

A skin cosmetic applied to the skin of the human body,
Containing the following components (a) to (c),
(A) an alkyl glucoside derivative;
(B) polyethylene glycol;
(C) a polymer compound;
The content of component (b) polyethylene glycol is 0.1 to 10.0 wt%.   The skin makeup according to claim 1, wherein the component (a) is one or more alkyl glucoside derivatives selected from the group of methyl gluces-10, methyl gluces-20, PPG-10 methyl glucose and PPG-20 methyl glucose. Fee.   The skin cosmetic according to claim 1 or 2, wherein the content of the component (a) is 0.1 to 10.0 wt%.   The skin cosmetic according to any one of claims 1 to 3, wherein the component (b) is polyethylene glycol having an average molecular weight of 1000 or more.

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