JP2010260806A - Transparent sheet-like cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transparent sheet-like cosmetic that exhibits excellent properties such as excellent external appearances, ready applicability, visibility of ameliorating effects on skin conditions and the like during service, and the like. <P>SOLUTION: The sheet-like cosmetic comprises biocellulose and a high-refractive water-soluble component and has a transparent external appearance. Preferably, the high-refractive water-soluble component is one or a mixture of two or more selected from among a polyhydric alcohol and saccharide. More preferably, the polyhydric alcohol or saccharide is one or a mixture of two or more selected from among glycerine, 1,3-butylene glycol, pentanediol, diglycerine, polyglycerine, glucose, sorbitol and sucrose. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a transparent sheet-like cosmetic product that has excellent effects such as excellent appearance, easy application, and improved skin condition during use.

  Biocellulose is finer in fiber texture than a non-woven fabric and has excellent water retention (Patent Documents 1 and 2). Attempts have been made to produce sheet-like cosmetics to be used for facial masks and the like by making use of such characteristics of biocellulose (Patent Document 3). However, when manufacturing a sheet-like cosmetic product by impregnating biocellulose with bioactive ingredients and other ingredients, there is a problem that it must be opaque due to the difference in refractive index between biocellulose and other ingredients. was there.

Japanese Patent Laid-Open No. 05-229063 Japanese Patent Laid-Open No. 03-157402 JP 2006-29884 A

  The present invention relates to a transparent sheet-like cosmetic product that has excellent effects such as excellent usability and appearance, easy application, and improved skin condition during use.

  The present invention relates to a sheet-like cosmetic comprising biocellulose and a high refractive index water-soluble component and having a transparent appearance.

  Preferably, the high refractive index water-soluble component is one or a mixture of two or more selected from polyhydric alcohols or saccharides, and the appearance is transparent.

  More preferably, in the present invention, the polyhydric alcohol or saccharide is one or more selected from glycerin, 1,3-butylene glycol, pentanediol, diglycerin, polyglycerin, glucose, and sucrose. It is related with the sheet-like cosmetics characterized by the external appearance being transparent.

  ADVANTAGE OF THE INVENTION According to this invention, it is excellent in a usability | use_condition and an external appearance, it is easy to stick and can provide the transparent sheet-like cosmetics with the outstanding effects, such as seeing the improvement effect of a skin state etc. during use.

FIG. 1 is a photograph of sheet-like cosmetic A (left) and sheet-like cosmetic B (right). FIG. 2 is a photograph of the sheet-like cosmetic A (left) and the sheet-like cosmetic B (right). The letter “ma” is attached on the blackboard, and the sheet-like cosmetic is placed on it. FIG. 3 is a photograph of the sheet-shaped cosmetic A molded into a facial mask. A letter “○” is attached on the blackboard, and a sheet-like cosmetic is placed thereon.

  Hereinafter, embodiments of the present invention will be described. In addition, this invention should not be limited and interpreted by description of the following embodiment, A various change is possible within the range of description in a claim.

  The present invention relates to a sheet-like cosmetic comprising biocellulose and a high refractive index water-soluble component and having a transparent appearance. Preferably, the high refractive index water-soluble component is one or a mixture of two or more selected from polyhydric alcohols or saccharides. More preferably, the polyhydric alcohol or saccharide is one or a mixture of two or more selected from glycerin, 1,3-butylene glycol, pentanediol, diglycerin, polyglycerin, glucose, sorbitol, and sucrose. .

  The biocellulose used in the present invention is cellulose produced by microorganisms, and is composed of fibrils in which a large number of microfibrils having a diameter of 4 nm are gathered. By stationary culture of acetic acid bacteria and the like, a biocellulose film is formed at the air-liquid medium interface.

For example, after forming a biocellulose film by culturing, washing with water, removing the medium, and then performing an alkali treatment to remove microorganisms and impurities. The alkali treatment may be boiled for about 1 to 2 hours with an alkali solution (for example, about 2% sodium hydroxide solution) about 10 times as much as the produced biocellulose membrane. Then, it wash | cleans with water until it becomes neutral, and can obtain the target biocellulose film | membrane.

  The high refractive index water-soluble component used in the present invention is a water-soluble component having a refractive index (measured at 20 ° C. by D-ray) of preferably 1.40 or more, and more preferably 1.43 or more.

  The polyhydric alcohol used in the present invention is glycerin, 1,3-butylene glycol, pentanediol, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, glycol, isoprene. Polyhydric alcohols such as glycol. Examples of the saccharide used in the present invention include saccharides such as glucose, sucrose, and sorbitol. Among these, it is preferable to be one kind or a mixture of two or more kinds, which can easily ensure transparency and have an excellent wetting action.

  The “sheet-shaped cosmetic product having a transparent appearance” in the present invention is a sheet-shaped cosmetic product having a transparent feeling that is clearly transparent when viewed with the naked eye. When a sheet-like cosmetic product is placed on a plate on which characters are described, it is preferable to ensure transparency to such an extent that the characters can be easily found.

The sheet-like cosmetic characterized in that the appearance in the present invention is transparent, as long as the sheet-like cosmetic is not opaque, can be used for normal cosmetics as needed, physiologically active ingredients, thickeners, oils, Components such as a fluorine compound, a resin, a surfactant, an ultraviolet absorber, a preservative, a fragrance, a dye, a salt, a solvent, a chelating agent, a neutralizing agent, and a pH adjusting agent can be blended.

The preferable example of the sheet-like cosmetic of the present invention is not limited as long as the sheet-like cosmetic is not opaque, but it is sufficient that transparency is obtained by a combination of at least the following components (A) to (D). Needless to say, other physiologically active ingredients may be included.
(A) Glycerin 5-60% by weight
(B) Polyhydric alcohols, a mixture of one or more sugars 0 to 65% by weight
(C) Sodium hyaluronate 0.001-1% by weight
(D) Purified water remaining

The shape of the transparent sheet-shaped cosmetic product of the present invention is not particularly limited, and may be elliptical, circular, heart-shaped, semi-circular, semi-elliptical, square, rectangular, trapezoidal, etc., as long as the sheet-shaped cosmetic is not opaque. be able to. Moreover, you may provide a convex part and a recessed part for the purpose of alignment and a usability improvement. Further, the shape, thickness, and adhesive force may be changed depending on the use site.

Examples of the application site of the transparent sheet-like cosmetic of the present invention include face use, eye use, mouth use, arm use, leg use, chest use, abdominal use, and neck use. In a part where the pasting area is large, it is preferable to increase the adhesive strength of the sheet-like cosmetic or to reduce the thickness.

The thickness of the transparent sheet-like cosmetic sheet of the present invention is not particularly limited, and the thickness may be uniform or partially different as long as the sheet-like cosmetic is not opaque. In order to ensure adhesion, transparency and strength, a thickness of 0.3 to 1.5 mm is preferable.

Since the transparent sheet-like cosmetic of the present invention is transparent, it has excellent effects such as excellent appearance, easy application, and the appearance of improving skin condition during use. In addition to the above effects, various effects can be expected depending on the application site and the physiologically active component to be blended. For example, fine wrinkle improvement effect, skin turnover improvement, massage effect, moisturizing effect, blood circulation promotion, bear improvement effect, cooling effect, slimming effect, shaping effect and the like can be expected. These effects are obtained by a synergistic effect between the effect of the transparent sheet-like cosmetic pack and the effect of the blended components.

  Examples of the present invention will be described below. It should be noted that the present invention should not be construed as being limited to the following examples, and various modifications can be made within the scope of the claims.

Example 1
A biocellulose sheet-like cosmetic A was produced so as to have the formulation shown in Table 1 below.
(Table 1)

(Comparative Example 1)
Purified water was impregnated with biocellulose to prepare a sheet-like cosmetic B.

(Evaluation)
As a result of evaluating the transparency of the sheet-like cosmetic A of Example 1 and the sheet-like cosmetic B of Comparative Example 1 with the naked eye, A was clearly more transparent. The photographs of the sheet-like cosmetics A and B are FIGS. The left side of FIG. 1 and FIG. 2 left is a sheet-like cosmetic A, and the right side of FIG. FIG. 3 shows a sheet-shaped cosmetic A molded into a facial mask.

From FIG. 1, it is clear that the sheet-like cosmetic A is transparent, but the sheet-like cosmetic B is whitish and not transparent. Further, as shown in FIGS. 2 and 3, in the sheet-like cosmetic A, the characters “MA” and “◯” on the plate are clearly visible, but in the sheet-like cosmetic B, the characters are difficult to see. This also indicates that A is more transparent than B.

As described above, the present inventors have been able to provide a transparent sheet-like cosmetic product having excellent effects such as excellent usability and appearance, easy application, and improved skin condition during use. .

  ADVANTAGE OF THE INVENTION According to this invention, it is excellent in a usability | use_condition and an external appearance, it is easy to stick and can provide the transparent sheet-like cosmetics with the outstanding effects, such as seeing the improvement effect of a skin state etc. during use.

Claims (3)

  A sheet-like cosmetic comprising a biocellulose and a water-soluble component having a high refractive index and having a transparent appearance.   A sheet-like cosmetic product characterized in that the high refractive index water-soluble component according to claim 1 is one or a mixture of two or more selected from polyhydric alcohols or saccharides and has a transparent appearance. The polyhydric alcohol or saccharide according to claim 2 is one or a mixture of two or more selected from glycerin, 1,3-butylene glycol, pentanediol, diglycerin, polyglycerin, glucose, and sucrose. A sheet-like cosmetic product characterized by having a transparent appearance.