JP2011032200A - Combined cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic combined with a specific sheet, which has more enhanced moisture-retaining effect, its sustainability and convenience and more improves the state of skin, than conventional cosmetics. <P>SOLUTION: The combined cosmetic includes a sheet cosmetic prepared by preliminarily impregnating a cosmetic (II) into a sheet material laminated to one side of a hydrophobic film, and a cosmetic (I) compounded with a seaweed extract. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a combination cosmetic, and more specifically, by using a combination of a specific sheet cosmetic and a cosmetic containing a seaweed extract, it exhibits a high moisturizing effect and sustainability, and is simple and usable. It relates to an excellent combination cosmetic.

As a sheet material used for sheet cosmetics, there is a material obtained by laminating a water-absorbing fiber such as cotton, pulp, rayon, and cupra with a hydrophobic film (for example, see Patent Document 1). ).

Conventionally, cosmetics containing seaweed have been known, and many moisturizing effects and skin-beautifying effects have been reported (for example, see Patent Document 2 or 3). However, the durability of the effects is satisfactory. It is not a thing. It is also used in many places where marine therapy (thalassotherapy) is implemented. In such facilities, after applying cosmetics to the skin or after applying cotton impregnated with cosmetics, etc. A cosmetic method that suppresses the transpiration of cosmetics to enhance the penetration of the cosmetics into the skin and maintains the moisturizing effect has been performed. Recently, attention has been focused on applying a beauty method such as this to a third party for daily skin care.

JP 2005-2111425 A Japanese Patent Laid-Open No. 2000-212025 JP 09-67266 A

However, when applying a beauty method such as having a third party perform in daily skin care, the procedure is complicated and the film is difficult to handle with hands with cosmetics attached. Was not enough. Also, when cosmetics are impregnated into laminated sheets, cosmetics that can be impregnated are limited because cosmetics are difficult to impregnate in hydrophobic parts. Only sheet cosmetics that use laminated sheets are available. Then, a sufficient moisturizing effect could not be obtained.

Therefore, the present invention solves the above-mentioned problems, and further improves the moisturizing effect and its sustainability and convenience compared to conventional cosmetics, and improves the skin condition by combining a specific sheet. The purpose is to provide.

As a result of intensive studies to solve the above problems, the present inventor has found that the above problems can be solved by using a combination of a cosmetic containing a seaweed extract and a specific sheet. The invention has been completed.

That is, the combination cosmetic of the present invention is a combination cosmetic comprising a sheet cosmetic and a cosmetic (I), and the sheet cosmetic is a sheet laminated on one surface with a hydrophobic film. The material is pre-impregnated with cosmetic (II), and the cosmetic (I) includes at least one seaweed extract selected from green algae, brown algae, and red algae. Furthermore, the thickness of the film is preferably 2 μm to 15 μm.

ADVANTAGE OF THE INVENTION According to this invention, the moisturizing effect of the cosmetics which mix | blended the seaweed extract can fully be exhibited and can be maintained, and the cosmetics excellent also in the convenience are provided.

It is a graph which shows the keratin water content measurement result of Example 13, Comparative Example 7, and Comparative Example 9.

Hereinafter, the present invention will be described in detail.

The seaweed extract contained in the cosmetic (I) of the present invention is at least one selected from green algae, brown algae and red algae. These seaweeds are not particularly limited as long as they can be generally used for cosmetics, and any of them may be used. For example, Hijiki, Hibamata, Joromoku, Honda Walla, Umichiwa, Kajime, Kombu, Wakame, Ichimegasa, Quercus, Black-tailed, Genus Brown algae (Phaeophyta) such as genus, Matsumo genus, Isogawara genus, Isogrape genus, Shiomido genus Genus, Yuikiri, Maca, Obusa, Chisujinori, Ochimodoku, Kekonahada, Ragara, etc. Red alga , Green algae (Chlorophyta) Etc. The.

The above-mentioned seaweed extract may be obtained by any extraction raw material or extraction method. However, the above-mentioned seaweed alga body (either whole or part) may be dried and then ground or cut. It is preferable. The extraction solvent is preferably water, alcohols such as methanol, ethanol, isopropanol, propylene glycol, butylene glycol, ketones such as acetone and methyl ethyl ketone, amides such as dimethylformamide, or a mixed solution thereof. Water is particularly preferred. Extraction should be carried out with the mixture ratio (weight ratio) of dry alga bodies and extraction solvent being 1/50 to 1/2, extraction temperature of 1 to 100 ° C., extraction time of 0.5 to 120 hours, standing, stirring, etc. Is preferred. Moreover, you may filter, concentrate, refine | purify, etc. suitably after extraction.

In the cosmetic (I) containing the seaweed extract in the present invention, a surfactant, a humectant, and an oil component that are usually used in cosmetics, if necessary, within a qualitative and quantitative range that does not impair the effects of the present invention. , Fragrances, preservatives, antioxidants, chelating agents, chemicals, water, etc., and can be produced according to conventional methods. Although there is no restriction | limiting in particular in content in the cosmetics of a seaweed extract, 0.001-20 mass%, Especially 0.05-5 mass% is preferable.

The cosmetic (I) in the present invention can take any cosmetic material that can be blended with an extract of seaweed, for example, lotion, milky lotion, cream, etc., and may be prepared by a conventional method.

The sheet cosmetic of the present invention is obtained by impregnating cosmetic (II) in advance on a sheet material laminated on one surface with a hydrophobic film.

The laminated sheet material is not particularly limited as long as it can be impregnated with cosmetics, and any material and basis weight used for general sheet cosmetics such as cotton, pulp, rayon, cupra, etc. One surface of a sheet made of water-absorbing fibers is laminated with a hydrophobic film represented by a polyethylene film or a polypropylene film. When using, since it is laminated from the beginning, there is no trouble of separately preparing a film, and the transpiration suppression effect by the film can be easily obtained. The water absorbent fibers may be used alone or in combination of two or more. The basis weight, usability and the time of expanding the sheet, from the viewpoint of adhesion to the ^skin, preferably ^{15g / m 2 ~120g / m 2} , more preferably from 30 to 100 g / ^{m 2.} The thickness of the laminate process applied to the sheet made of water-absorbing fibers is preferably 2 μm to 15 μm, and particularly preferably 5 to 10 μm. If the thickness is 2 μm or less, the laminate portion is too thin, the transpiration suppression effect by the film is not sufficient, and the resulting moisturizing effect and sustaining effect are low. On the other hand, if the thickness is 15 μm or more, the sheet is stiff and the adhesion is deteriorated, so that the usability is deteriorated. This sheet material can be used after being cut out for the whole face and part.

The cosmetic (II) of the present invention is a liquid cosmetic that is impregnated into a sheet material in advance, and its components and the like are not particularly specified. However, since there is a hydrophobic portion that is laminated, the cosmetic (II) is 30 ° C. In view of the impregnating property, it is preferable that the viscosity of the resin is 1500 mPa · s or less, more preferably 1000 mPa · s or less. The impregnation method and the like can be performed by known means.

EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by this. In addition, all compounding quantities are the mass%.

As cosmetics corresponding to the cosmetic (I), the cosmetic liquids of Formulation Examples 1 and 2 shown in Table 1 and the emulsions of Formulation Examples 3 and 4 shown in Table 2 were prepared by conventional methods. Formulation Examples 1 and 3 are blended with seaweed extract, and Formulation Examples 2 and 4 are blended.

A liquid cosmetic of Formulation Example 5 shown in Table 3 as a cosmetic corresponding to the cosmetic (II) was prepared by a conventional method.

-Examples 1-12
The liquid cosmetic of Formulation Example 5 was impregnated with 15 mL of a sheet material having an area of 0.037 m ² shown in Table 4, and evaluation was performed in combination with the cosmetic liquid of Formulation Example 1. In Examples 1 to 12, the material of the sheet material, the material and the thickness of the laminating process were changed, and the impregnation state, the transpiration suppression effect, and the adhesion to the skin were evaluated by the following methods. The results are also shown in Table 4.
<Impregnated state>
The liquid cosmetic of Formulation Example 5 was placed in an aluminum bag containing a sheet material, and then allowed to stand, and after 2 hours, the state was evaluated according to the following criteria.
◎: No dry portion in the entire sheet ○: Dry portion is 10% or less △: Dry portion is more than 10% and less than 40% ×: Dry portion is 40% or more <Evaporation inhibiting effect>
The cosmetic liquid of Formulation Example 1 is uniformly applied on the plate, covered with a sheet material of 5 cm × 5 cm, and the weight change is measured in an environment of 20 ° C. and 50% RH, and the weight is reduced after 15 minutes. The rate was evaluated according to the following criteria.
◎: Weight reduction rate is 1% or less ○: Weight reduction rate is over 1% and 2% or less △: Weight reduction rate is over 2% to less than 5% ×: Weight reduction rate is 5% or more <Skin contact Sex>
10 female panelists in their 20s and 40s used each face for 15 minutes after washing their face, and then evaluated according to the following criteria.
◎: Very good ○: Good △: Somewhat bad ×: Bad

Examples 13 and 14 and Comparative Examples 1 to 10
Next, the formulation examples 1 to 4 shown in Table 5 when combined each sheet material (area 100% cotton 0.037M ² (using 40 g / ^{m 2)} nonwoven), Example, in Comparative Example Moisturizing feeling and sustainability were evaluated. The results are shown in Table 5. In addition, each evaluation result is 10 levels of female panelists in their 20s to 40s, with a moisturizing feeling after 15 minutes of use on the face after washing the face and sustainability until the next morning: good, slightly good, normal, and bad. The number of respondents was shown.

Moreover, about Example 13, the comparative example 7, and the comparative example 9, the stratum corneum moisture content was measured in the upper arm inner side part of the female panelists of 20-40 generations. The skin conductance was measured before use and 30 minutes after use in an environment of 10 μL of the applied cosmetic (I) and 5 × 5 cm, 20 ° C., and 50% RH, respectively. (Measuring instrument: Corneometer (registered trademark) CM825 (manufactured by CK)) The results are shown in FIG. It was the result that the moisturizing effect was sustained when the cosmetics containing the seaweed extract and the sheet cosmetics were used in combination rather than individually.

As described above, the present invention can suppress the transpiration of the cosmetic by combining the cosmetic containing the seaweed extract and the specific sheet cosmetic, and can sufficiently exhibit the moisturizing effect. It was excellent in sustainability.

1 Keratin moisture before use 2 Keratin moisture after 30 minutes of use

Claims (2)

A combination cosmetic comprising a sheet cosmetic and a cosmetic (I), wherein the sheet cosmetic is previously impregnated with a cosmetic (II) on a sheet material laminated on one surface with a hydrophobic film. And the cosmetic (I) includes at least one seaweed extract selected from green algae, brown algae and red algae. The combination cosmetic according to claim 1, wherein the film has a thickness of 2 μm to 15 μm.

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