JP2989694B2 - Gel pack fee - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a gel packing material,
More specifically, it is an object of the present invention to provide a gel-like pack material which is easy to apply, has good blocking properties and oil absorption properties, has a cool feeling and is washable.

[0002]

2. Description of the Related Art Conventionally, types of pack materials include film packs mainly containing polyvinyl alcohol, clay packs mainly containing inorganic powders such as kaolin, wax packs mainly containing paraffin, etc., and other foam packs.
Stone stone packs and the like are known.

[0003] Each of these packs has a blood circulation promoting effect by a skin occlusion effect and a cleaning effect by absorbing excessive sebum.

[0004]

However, since all of the above-mentioned conventionally known pack materials utilize a skin obstruction effect, a warm feeling is usually felt at the time of application.
On the other hand, this feeling of heat is also a cause of hating the use of pack charges in summer. On the other hand, although some packs containing sodium alginate as a main component are some of the pack materials which soften the warm feeling and provide a cool feeling, they have problems in ease of application and touch surface.

[0005] The present invention has been made in view of such circumstances, and is excellent in ease of application, obstructiveness and oil absorption, and imparts a cooling sensation to the skin, similarly to conventional packs. It is an object to provide a pack fee to be obtained.

[0006]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above problems, and as a result, added sorbitol to a gel structure formed from a specific water-soluble polymer and silicic anhydride. Sometimes, it was found that a cooling sensation can be imparted while maintaining clogging and oil absorbing properties, and that it can be further enhanced by foaming it in the presence of a surfactant to further enhance the cooling sensation. The present invention has been completed.

Accordingly, the present invention is sodium polyacrylate and / or carboxyvinyl polymer 0.1 to 20 wt% water-soluble polymer including at least a silicic anhydride 1
It is a gel-like pack containing 30 to 30% by weight and 20 to 50% by weight of sorbitol.
In the presence of the surfactant, the foam inclusion ratio is 5 to 30% of the total.
It relates to a gel-like pack material that is foamed at a volume percentage .

Hereinafter, the present invention will be described in detail.

The water-soluble polymer applied to the present invention includes at least one of sodium polyacrylate and carboxyvinyl polymer, or both.
In some cases, it is used together with other water-soluble polymers such as cellulose derivatives such as carboxymethylcellulose and methylcellulose, gums such as xanthan gum and quince seed, polyvinyl alcohol and sodium alginate.

The content of the water-soluble polymer with respect to the gel-like packing material is selected in the range of 0.1 to 20% by weight. Of these, 0.1 to 20% by weight is used for the sodium polyacrylate or carboxyvinyl polymer as the main component. 5% by weight, preferably 0.1 to 1% by weight, and 0.1 to 5% by weight for cellulose derivatives and gums used for stabilizing the gel state. The range of 0.5 to 10% by weight is selected for polyvinyl alcohol or the like used for imparting properties.

Next, as the silicic anhydride similarly applied to the present invention, those usually used in cosmetics may be used.
The particle size is 0.1 to 30 μm, preferably 1 to 15 μm
And preferably spherical and hydrophilic ones are used. In addition, the content with respect to the gel-like pack material is 1 to
It is 30% by weight, preferably 5 to 15% by weight.

Further, in the gel pack of the present invention, sorbitol is contained in the gel structure formed from the water-soluble polymer and silicic anhydride in an amount of 20 to 50% by weight, preferably 20 to 30% by weight. It is contained in.

In the present invention, a gel-like pack material having good coating properties, occlusive properties, oil absorption properties and a cooling sensation can be obtained by incorporating the water-soluble polymer, silicic anhydride and sorbitol. In the present invention, by further foaming in the presence of a surfactant as a foaming agent, it is possible to further enhance the oil absorbing property and the cooling sensation.

The surfactant used here may be an anionic surfactant, a nonionic surfactant, a natural surfactant, and the like. Specific examples thereof include sodium alkyl sulfate, polyoxyethylene sorbitan fatty acid ester, and the like. Polyglycerin fatty acid ester, sucrose fatty acid ester,
Acyl amino acid esters and the like can be mentioned, and are used in the range of 1 to 10% by weight, preferably 2 to 5% by weight.

The foaming method itself may be performed according to a conventional method. For example, mixing and stirring may be performed while blowing an inert gas such as air, or mixing may be performed using a mixer having a stirring blade for introducing air. Stir.

At this time, the amount of bubbles contained in the gel-like pack material is 5 to 30 with respect to the whole as a bubble inclusion ratio.
The volume% is preferably in the range of 15 to 25% by volume, and the apparent specific gravity at this time is in the range of 0.8 to 1.0. At an encapsulation ratio of less than 5% by volume, the effect of enhancing the cooling sensation is hardly felt, whereas an encapsulation ratio of more than 30% by volume decreases the obstructive property, which is not preferable.

In the gel packing material of the present invention, the water-soluble polymer, silicic anhydride, sorbitol,
Further, in addition to the surfactant, an organic / inorganic powder, a polyhydric alcohol, a preservative, a polysaccharide, a vitamin, a fragrance, and the like can be further blended as required. In particular,
For polyhydric alcohols such as 1,3-butylene glycol and glycerin, the aim is to improve the feel, while, on the other hand,
For organic and inorganic powders such as kaolin, titanium oxide, acrylic powder, and microcrystalline cellulose, about 0.5 to about 0.5 to improve the stability of the gel state, oil absorption or closing property, etc.
It is used in the range of 25% by weight.

Here, the features of the present invention will be described. In order to enhance the pack effect, it is necessary to increase the oil absorbing property and the closing property in the conventional pack amount containing the gel-like pack material. In contrast, the present invention has the disadvantage of feeling heat and heat as a feeling of use, but in the present invention, it is possible to use the above-mentioned specific three components in combination, and furthermore, to use the above-mentioned three components without deteriorating the pack effect. The point is that the feeling has been improved.

[0019]

The present invention will be described in more detail with reference to the following examples. The mixing ratio is% by weight.

Embodiment 1 Gel-like pack Sodium polyacrylate 0.1 Carboxyvinyl polymer 0.2 Carboxymethyl cellulose 0.3 Silicic anhydride 5 Sorbitol 25 Cyclodextrin 0.1 Sodium hyaluronate 0.01 Microcrystalline cellulose 1 Glycerin 15 1,3-butylene glycol 8 Methylparaben 0.2 Refined water 45.09

Embodiment 2 FIG. Foaming gel pack (foam inclusion rate 20 vol%) Sodium polyacrylate 0.1 Carboxyvinyl polymer 0.2 Carboxymethyl cellulose 0.5 Silicic anhydride 6 Sorbitol 30 Cyclodextrin 0.1 Elastin hydrolyzate 0.1 Fine Crystalline cellulose 2 Titanium oxide 1 Acrylic powder 5 Glycerin 20 1,3-butylene glycol 8 Sucrose fatty acid ester 4 Methyl paraben 0.2 Purified water 22.8

Embodiment 3 FIG. Foaming gel pack (foam inclusion rate 10 vol%) Sodium polyacrylate 0.3 Carboxyvinyl polymer 0.6 Polyvinyl alcohol 2 Xanthan gum 0.1 Silicic anhydride 10 Sorbitol 20 Microcrystalline cellulose 3 Titanium oxide 1 Glycerin 15 1, 3-butylene glycol 5 N-lauroylglutamate triethanolamine 2 methylparaben 0.2 flavor 0.2 purified water 40.6

(Comparative experiment) The gel-like pack obtained according to the present invention was compared with a conventional pack by measurement of oil absorbency, measurement of skin temperature and sensory evaluation.

<Measurement of Oil Absorbency> Sample (A) Gel-like pack of Example 1 of the present invention (A) Foamable gel-like pack of Example 2 of the present invention (C) Composition (% by weight) of the following formula 1 Conventional clay pack having glycerin (d) Excluding sorbitol in Example 1
The weight of a comparative product having the composition (% by weight)
Ru-Pack [Formulation 1] Kaolin 10 Stearic acid 5 Cetanol 1 Liquid paraffin 7 Polyethylene glycol monostearate 0.3 Glycerin monostearate 0.2 Talc 2 Methyl paraben 0.2 1,3-butylene glycol 8 Purified water 66.3 [Formulation 2] Sodium polyacrylate 0.1 Carboxyvinyl polymer 0.2 Carboxymethyl cellulose 0.3 Silicic anhydride 5 Cyclodextrin 0.1 Sodium hyaluronate 0.01 Microcrystalline cellulose 1 Glycerin 40 1,3-butylene glycol 8 Methyl paraben 0.2 purified water 45.09

Experimental Method Five female panels were used as test subjects, and the amount of sebum on the cheeks of the face was measured using a Sea Bammeter (manufactured by SCHWARTZ HAUPT). That is, the amount of sebum (control) was measured before applying the sample. Next, the sample was applied to the face, left for 10 minutes, washed and wiped off, and the sebum amount was measured again.
Further, after 30 minutes and 60 minutes, the amount of sebum was measured. The results are shown in FIG. 1 as the ratio of the sebum amount value at 10 minutes, 30 minutes and 60 minutes to the sebum amount value of the control with respect to the average value of the five subjects.

As can be seen from the results in FIG. 1, the decrease in the amount of sebum when the gel pack (a) and the foamed gel pack (a) of the present invention were applied was reduced by the conventional clay pack. (C), which was significantly larger than the case where the gel-like pack (d) as a comparative product was applied, and proved to be excellent in oil absorbency.

<Skin Temperature Measurement> Sample Gel-like packs (A) and (A) of the product of the present invention used for measurement of oil absorbency, conventional clay pack (C) and comparative gels
A shape pack (d) was used.

Experimental Method Using five female panels as subjects, the skin temperature at the cheeks of the face was measured using thermography TUS-5500 (manufactured by Nippon Avionics). That is, the skin temperature (control) was measured before applying the sample. Next, when the sample was applied to the face and left for 5 minutes, the skin temperature was measured. After washing and wiping, the skin temperature was measured again.
After an additional 25 minutes and 35 minutes, the skin temperature was measured. The results are shown in FIG. 2 as the difference of the skin temperature at each time with respect to the control skin temperature for the average value of five subjects.
It was shown to.

As shown in the results of FIG. 2, the gel pack (A) and the foaming gel pack (A) of the present invention are a conventional clay pack (C) and a comparative product. gel
Compared to the shape pack (d), it was found that the skin temperature was significantly lower and the cooling sensation was excellent. In particular, it was also demonstrated that when the foamed gel pack is used, the skin temperature can be reduced almost twice as much as the non-foamed gel pack.

<Sensory Evaluation> Samples Gel packs (a) and (b) of the present invention used for oil absorption measurement, conventional clay pack (c) and comparative gels
A shape pack (d) was used.

Experimental Method 80 Japanese women were randomly divided into 4 groups of 20 each.
(Groups A to D) , Group A is a gel-like pack of the product of the present invention (A), Group B is a foam-type gel-like pack of the product of the present invention (A), and Group C is a conventional product. The clay pack (C) of D
The group was compared with the gel-like pack (d) of the comparative product, which was applied to the face. The group was compared for the feeling of use when they were washed 10 minutes after the application. The test was conducted for the feeling of cooling inside and the feeling of refreshing after washing. Table 1 shows the results.

[0032]

[Table 1]

As shown in the results in Table 1, the gel pack (A) and the foamed gel pack (A) of the present invention are a conventional clay pack (C) and a comparative gel.
Compared to the shape pack (d), it was remarkably excellent in cooling feeling during use and refreshing feeling after use based on oil absorption, and it was proved that this effect was remarkable especially in the case of a foaming type.

[0034]

According to the present invention, the feeling of use such as coolness is excellent, without impairing the effects such as oil absorption and blocking property, as compared with conventionally known packs and the like. In addition, it can be used without adverse effects such as applicability and washability.

[Brief description of the drawings]

FIG. 1 is a diagram showing the relationship between time and sebum amount ratio.

FIG. 2 is a diagram showing a relationship between time and skin temperature.

Claims (2)

(57) [Claims] 1. A water-soluble polymer containing at least sodium polyacrylate and / or a carboxyvinyl polymer.
A gel-like pack containing 0.1 to 20% by weight, 1 to 30% by weight of silicic anhydride, and 20 to 50% by weight of sorbitol. 2. The gel packing material according to claim 1, wherein the foam is foamed in the presence of a surfactant at a foam encapsulation rate of 5 to 30% by volume.