KR100755299B1 - hydrous gel sheet for makeup and production method of the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic hydrous gel sheet and a method for producing the same, and an object of the present invention is to provide a cosmetic gel sheet having a good skin adhesiveness and feel, and containing more cosmetic liquid.

A cosmetic hydrous gel sheet having an opening on the skin abutment side, wherein at least one core side cross section is wider than the opening side cross-section, either regularly or irregularly on the skin abutment surface, such as a net or After hardening a gel in the partially buried state, it manufactures by the method of forming a gel defect by detaching the object from the skin sticking surface side.

Sheet type cosmetic pack, hydrogel sheet, gel defect, skin adhesion, touch

Description

Cosmetic hydrous gel sheet and its manufacturing method {hydrous gel sheet for makeup and production method of the same}

FIG. 1A shows a case in which a gel defect is formed using a yarn having a circular cross section, the depth at which the yarn is buried in a cross section perpendicular to the yarn of the hydrous gel sheet, and FIG. The cavity to be formed is a case where the outside air atmosphere is in communication.

Fig. 2A is a plan view of a hydrous gel sheet in which gel defects are formed from a woven net, and Fig. 2B is a sectional view.

3A, 3B, and 3C are examples of a mold surface such that the needle is cut in length of about 1 cm and arranged vertically, and is a plan view, a cross-sectional view, and a cross-sectional view of the gel sheet removed from the mold.

** Description of the symbols for the main parts of the drawings **

11: gel sheet 12: gel defects

13: gap formed by thread 21: mold (object)

The present invention relates to a cosmetic water-containing gel sheet and a method for manufacturing the same, and more particularly, to a cosmetic water-containing gel sheet and a method for producing the same, for more effectively contacting and penetrating the cosmetic ingredient into the skin. It is about.

Conventional cosmetic packs applied to the skin has the advantage that it can be applied to the desired shape in the desired area, but there is an inconvenience such as having to wipe off a large amount of packs one by one, in recent years, sheet-type packs that are applied to the skin are used a lot.

Sheet-shaped packs include non-woven fabrics, woven fabrics, and papers soaked in a liquid containing a cosmetic ingredient, and gels containing cosmetic ingredients are applied to a support such as a film or a nonwoven fabric. The pack retains and releases cosmetic ingredients, but has a poor skin extractability. The pack does not adhere well to the skin and does not feel good. Although the adhered gel sheet is in close contact with the skin, it uses a pressure-sensitive adhesive, which causes problems such as poor skin feel and an adhesive remaining.

Thus, in order to improve the problems caused by the pressure-sensitive adhesive, the support is removed slightly (at the basis of the support-attached gel sheet) and the embossing is formed on the outer side of the gel layer to increase the flexibility There was a group gel sheet which improved harvestability and adhesion.

However, although the gel sheet of this type has advantages such as having excellent permeability and skin extractability and a cosmetic appearance, there is still a need for improvement in skin texture.

As for the method of forming the embossing on the gel sheet, as in the case of manufacturing various hydrophilic and non-hydrophilic gel sheet products including pape, the mold is pressurized with an embossing former in the state where the gel is not completely cured or heated after curing. The method of forming by using a mold or forming from the beginning is known.

However, the conventional embossing, that is, the method of forming the unevenness is mainly pressed into a model of metal, resin, or the like, or cured upside down in this model. Therefore, in order to achieve good mold separation, the surface unevenness is small and smooth, and the structure having at least the leading end portion is used, so that the uneven portion of the gel surface tends to be angled, and the tip portion tends to be sharp. As a result, the skin contact surface is reduced, and the touch is not good.

An object of the present invention is to provide a cosmetic gel sheet having a good skin adhesiveness and feel, and which can contain more cosmetic liquid, and a method for producing the same.

Cosmetic water-containing gel sheet of the present invention for achieving the above object has an opening on the side of the skin affixation, at least one core side cross-section is a gel defect (cavity, cavity) wider than the opening side cross-section is on the skin affixation It exists regularly or irregularly.

The cosmetic hydrous gel sheet of the above structure can retain a liquid or ointment substance (hereinafter referred to as a cosmetic liquid) containing a cosmetic ingredient, etc., not only on the surface of the skin affixation but also in the defects, thereby increasing the amount of makeup. The liquid can be retained, the cross section of the opening part of the gel defect part is small, the adhesion to the skin is high, and the skin feels good.

In the cosmetic water-containing gel sheet, a part of the gel defect portion is communicated with the outside air atmosphere side, or irregularities are formed regularly or irregularly on the outside air atmosphere side surface to increase the surface area, thereby promoting the evaporation of water, Gel shrinkage is accelerated, the movement of the cosmetic liquid to the skin surface is promoted, and the adhesion is improved.

The cosmetic hydrous gel sheet of the present invention is prepared by a method in which a gel defect is formed by curing the gel in a state where the object is completely or partially embedded in the gel, and then detaching the object from the side of the skin affixation.

After detachment, the object used to form the gel defect can, for example, use a seal.

FIG. 1A illustrates a case in which a gel defect is formed using a yarn having a circular cross section, and the yarn is deeply embedded in the gel 11 toward the right side by varying the depth at which the yarn is buried in a cross section perpendicular to the yarn of the hydrous gel sheet. The gel defect part 12 is formed.

In the extreme case, the rightmost cross section is the case where the thread is completely buried to cure the gel, and when the thread is detached, the thread is cut off from the surface of the skin abutment surface. It is possible to improve the skin texture by eliminating irregularities on the surface of the skin while maintaining the advantage of being able to keep the same.

If the cosmetic liquid contained in the gel defect part has a low viscosity, it will sufficiently leak through the gap 13 formed by the yarn when removing the buried thread, so that the defect may not seem to exist at all. In this case, while the retention capacity and retention performance of the cosmetic liquid can be improved, the skin contact surface can be reduced to prevent the decrease in skin adhesion and the deterioration of the skin feel.
FIG. 1B illustrates a case in which a cavity formed by the yarn communicates with the outside air atmosphere in a cross sectional view parallel to the yarn.

In the case of forming the gel defect part using a yarn, it is preferable to arrange the gel defect part in a net shape from an industrial or external viewpoint.

2A and 2B show an example of a hydrous gel sheet in which gel defects are formed using a woven net, and are respectively a plan view and a cross-sectional view.

The yarn may be made of natural fiber or synthetic resin, and in the case of synthetic resin, for example, polyolefin, polyester, polyamide, polyurethane, rubber, and the like.

In the hydrogel sheet of the present invention, the gel defect may be formed by using a mold, or by forming a hydrogel sheet on a plastic film serving as a mold and removing the film. In this case, the hydrogel is elastic. Therefore, the inner cross section of the gel defect portion can be made larger than the cross section of the skin abutment surface, and thus the shape selection is large compared with the conventional mold pressing method.

3A and 3B show an example of a mold surface such that the needle is cut in a length of about 1 cm and arranged horizontally.

A gel material is a well-known mixture, and the water resistant gel obtained based on agar, xanthene gum, etc. is mentioned.

The method of filling the gel defect with the cosmetic liquid includes compressing the hydrous gel sheet with a roller in the cosmetic liquid. The hydrogel gel sheet passes between the rollers having a gap smaller than their thickness. When the air in the gel defect part escapes and is restored by its elasticity, it absorbs and retains the cosmetic liquid that has filled the surroundings.

The configuration of the present invention will be clearer through the following examples.

<Example 1>

3 g of agar, 0.4 g of locust bean gum, 0.4 g of xanthene gum, and 5 g of 1,3-butylene glycol were added to 100 g of water, and the solution dissolved while heating was heated into a sheet having a surface density of 1,500 g / m ² (thickness of about 1.5 mm). The show was performed.

Subsequently, a net (woven line and seed line 5 strands per cm) woven into polyethylene gel having a diameter of about 0.45 mm was embedded and cured, and then removed from the skin sticking side to obtain a hydrous gel sheet.

The process of the hydrogel sheet is prepared by adding gel defects per 1cm ² 0.016cm ³ has blossomed further contain a cosmetic solution of 1.6cc in addition to make-up solution to be applied to the skin surface in a patch based on hydrogel sheets of 10cm x 10cm Can be.

According to the present invention, there is provided a cosmetic gel sheet having good skin adhesion and feel and containing more cosmetic liquid and a method for producing the same.

Claims (7)

A cosmetic water-containing gel sheet having an opening on the skin abutment side, wherein at least one core-side cross-section has a gel defect wider than the opening-side end face regularly or irregularly on the skin abutment surface. The cosmetic hydrogel sheet according to claim 1, wherein a part of the gel defect portion is in communication with an outside air atmosphere side. The cosmetic hydrous gel sheet according to claim 1, wherein irregularities are formed regularly or irregularly on the surface of the outside air atmosphere. The method for producing a cosmetic-containing gel sheet according to claims 1 to 3, wherein a gel defect is formed by curing the gel in a state where the object is completely or partially embedded in the gel, and then removing the object from the side of the skin abutment. The method for producing a cosmetic hydrous gel sheet according to claim 4, wherein the object is a yarn. The method for producing a cosmetic hydrous gel sheet according to claim 5, wherein the yarn is a net. An object is a metal mold | die, The manufacturing method of the cosmetic hydrous gel sheet of Claim 1 characterized by the above-mentioned.

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