JP2000319160A - Sheet-shaped, beautifully whitening pack cosmetic material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic material capable of expressing beautifully whitening effects in a short time and excellent in skin smoothing effects and cooling effects for hot feeling in the skin by including the extract of a specific fruit of a species of Rosaceae pyracantha. SOLUTION: This cosmetic material contains (A) the extract of a fruit, a species of Rosaceae pyracantha, the Chinese name of which is 'KAKYOKU' (Pyracantha cren), (Chinese herb name 'SEKIYOUSI'), and preferably further (B) a beautifully whitening agent (e.g. arbutin, ellagic acid, koji acid and the like). The amounts of the aforementioned components to be blended are preferably 0.001-5 wt.%, more preferably 0.3-4 wt.% of the ingredient A and 0.01-10 wt.% of the ingredient B based on the cosmetic material in the sheet shaped beautifully whitening cosmetic material, respectively. As the shape of the pack cosmetic material, e.g. a gel sheet type made by bringing a single layer or plural layers of a single gel unit containing KAKYOKU and the like is cited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD [0001] The present invention is excellent in whitening effect,
The present invention also relates to a sheet-like whitening pack cosmetic which is excellent in skin conditioning effect and cooling skin heat. More specifically, the present invention relates to a sheet-like whitening pack cosmetic having a more excellent whitening effect and the like by blending a fire thorn extract excellent in whitening effect and processing it into a sheet-like shape excellent in transdermal absorption.

[0002]

2. Description of the Related Art As a whitening agent to be incorporated in cosmetics, vitamin C or vitamin C derivatives are generally known. These are used as whitening cosmetics by blending them in liquid, creamy or powdery dosage forms.

[0003]

However, many of the vitamin C and the like are unstable, and their effects have not always been satisfactory. JP-A-5-55870 discloses Rosaceae Pyracantha.
It has been reported that a fruit extract of Chinese name "Hotoshi" (hereinafter referred to as "Hitohatsu extract") has a whitening effect in plants. It is necessary to use continuously during the period. In the above publication,
It is intended for ordinary cosmetics, and there is no description about blending a fire barb extract with a sheet-shaped pack. On the other hand, various types of sheet-like pack materials are commercially available, but none of them has an excellent whitening effect and an excellent skin conditioning effect and an effect of cooling skin heat. That is, an object of the present invention is to provide a cosmetic composition that exhibits a whitening effect in a short period of time, and is also excellent in a skin conditioning effect and an effect of cooling skin heat.

[0004]

Means for Solving the Problems The present inventors have studied a dosage form which can maximize the effect of the fire thorn extract, and as a result, the method which is used in combination with a sheet-like pack material has the best whitening effect. The present invention was found to be high, excellent in skin conditioning effect, and also effective in cooling skin heat. In addition, it was found that a synergistic effect of the whitening effect was obtained by using the fire spine extract and another whitening agent in combination. It is not clear why the synergistic effect occurs, but unlike the combination of normal whitening agents, the fire spine extract has a different whitening action mechanism than other whitening agents, and is included in the fire spine extract It is presumed that the component improves the stability of other whitening agents.

[0005] That is, a first aspect of the present invention is a sheet-like whitening pack cosmetic comprising a fruit extract of Chinese name "fire spine", which is a member of the genus Pyracantha in the family Rosaceae.

[0006] A second aspect of the present invention is a sheet-like whitening pack cosmetic comprising a fruit extract of Chinese name "fire spine" which is a member of the genus Pyracantha in the family Rosaceae, and a whitening agent.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The fire spine used in the present invention refers to a Chinese name "fire spine" (Rosaceae Pyracantha), which is a member of the genus Pyracantha in the family Rosaceae. In the present invention, an active ingredient (fire spine extract) of the Chinese herb name “Aka Yoko”, which is a fire spine fruit, is used. The fire barb extract is extracted with, for example, water or a lower alcohol such as methanol, ethanol, or propanol, or a mixture thereof. Although the extract can be directly blended with the sheet-like whitening cosmetic, it is preferable to use the powder as a powder by a freeze-drying method or a spray-drying method. Further, it is also possible to purify the extract by means of liquid-liquid distribution, adsorption chromatography or the like, and to mix a liquid or a powder. Further, it is preferable to use the fire spine extract dissolved in polyhydric alcohols, since the compound is excellent in the compounding properties of the pack material.

[0008] The amount of the fire thorn extract in the sheet-like whitening pack cosmetic of the present invention is based on the cosmetic part (the part excluding the weight of the support such as a nonwoven fabric and the separator) of the sheet-like pack. And preferably 0.001 to 5% by weight (however, the solid content of the fire barb extract). Further, it is preferable that the content is 0.3 to 4% by weight because the effect is easily obtained.

In the present invention, it is preferable to use various whitening agents having a known whitening effect in addition to the fire thorn extract.
Examples of the whitening agent include arbutin, ellagic acid, kojic acid, placenta extract, vitamin C, vitamin C derivative, rucinol, biphenyl compound, raspberry ketone glucoside, uruwa extract, licorice extract (glabridine, licorice flavonoid), almond extract, aloe extract , Ginkgo extract, age extract,
Scutellaria extract, spinach extract, Hypericum perforatum extract, lycopodium extract, seaweed extract, chamomile extract, cuckoo (waste) extract, gardenia extract, clara (kudjin) extract, chlorella extract, brown sugar extract, mulberry (saw beetle) extract, gentian extract, Tea extract, gobyshi extract, wheat extract, rice germ oil, rice bran extract, saishin extract, sanshin extract, sansho extract, perilla extract, peony extract, sage extract, senkyu extract, soybean extract, tea extract,
Touki extract, Calendula officinalis, Tonin extract, Garlic extract, Hibiscus extract, Hamamelis extract, Loquat extract, Safflower extract, Button extract,
Α-hydroxy acids such as melissa extract, yokuinin (barley barley) extract, saxifrage extract, waremokou (ju) extract, salicylic acid, glycolic acid, lactic acid, β-
Examples thereof include hydroxy acids, fruit extracts containing them, keratinolytic enzymes such as papain and protease.

In the present invention, these whitening agents other than the fire thorn extract having a whitening effect are used in an amount of 0.01 to 10% by weight (including various components) based on the total weight of the cosmetic portion of the sheet-like whitening pack cosmetic. In the case of containing a solvent such as a polyhydric alcohol, the amount is converted to a solid content excluding the solvent). When used in combination with these whitening agents having a whitening effect, a more effective whitening effect can be obtained.

The sheet-like whitening pack cosmetics referred to in the present invention include a lotion, a gel, an emulsion, and a creamy spike extract on a sheet-like support such as a nonwoven fabric, a woven fabric, a paper, or a fiber. Sheet support such as impregnated type, non-woven fabric, woven fabric, paper, and film (preferably transparent material) impregnated with cosmetics, containing fire barb extract, gel body, synthetic polymer and natural polymer Ordinary pressure-sensitive adhesive selected from resins and the like (preferably one with transparency)
A type in which a paste made of the following is applied to form a sheet, or a type in which a nonwoven fabric, a woven cloth (preferably having a sufficiently large aperture ratio) and the like are present in the thickness direction in the paste and formed into a sheet, A gel sheet type in which a single-layer or multiple-layer gel containing a fire thorn extract is formed into a sheet shape is exemplified. Further, one surface of the sheet-like whitening pack cosmetic has adhesiveness, and one surface is non-adhesive by laminating a support or by performing the processing described below,
Alternatively, by making the degree of adhesion between the two surfaces different, a surface having a high degree of adhesion can be adhered to the skin, and the other surface has a low degree of adhesion, and thus is excellent in usability and is preferable. Of the above, the gel sheet type is preferred because it is excellent in feel, percutaneous absorption accelerating property, appearance, and cooling effect. And more preferably, it is a gel sheet type, and the sheet having a transparent appearance can be stuck accurately by checking the sticking position such as the face through a sheet-shaped pack material with a mirror, and The improvement effect can be confirmed through the sheet-shaped pack material, which is preferable since it is aesthetically excellent. In addition, the tear strength is increased by allowing a woven or non-woven fabric having a sufficiently large opening ratio to exist inside the gel sheet type in the thickness direction,
It is preferable because the handleability is improved. In the present invention, the term "transparent" means that a 10-point type character can be read through a sheet-like whitening pack cosmetic.

Hereinafter, the above gel sheet type will be described in detail. The gel sheet type used in the present invention is composed of at least a synthetic polymer having a network structure and a solvent containing water, and is preferably colorless or colored transparent or translucent, and has shape retention. Features. The structure of the gel sheet may be a single layer and may have two or more layers.

The proportion of water in the cosmetic portion (hereinafter referred to as a gel body) in the gel sheet is preferably from 1 to 99% by weight. If the ratio of water in the gel body is less than 1% by weight, there is a possibility that a fire thorn extract or a whitening agent of a medicinal ingredient blended in the gel body cannot be easily dissolved. Conversely, if the proportion of water in the gel body exceeds 99% by weight, the stiffness of the gel body will be weakened, and it will be difficult to stably maintain additives such as solvents and medicinal components contained in the gel body. Could be. The proportion of water in the gel body is
In the above range, it is particularly preferably from 5 to 95% by weight, and more preferably from 10 to 85% by weight.

[0014] The solvent constituting the above gel body is not water and does not cause phase separation with water. Conventionally, it has been used in the fields of cosmetics, pharmaceuticals, quasi-drugs, sanitary materials, sundries, etc. Any solvent may be used as long as it is used.
Examples of such a solvent include monoalcohols such as ethyl alcohol, and polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, and glycerin. These may be used alone or as a mixture of two or more. Can be.

The proportion of the solvent other than water in the gel body is 98
Preferably it is less than or equal to% by weight. If the ratio exceeds 98% by weight, there is a possibility that various additives and the like blended in the gel body cannot be easily dissolved. Further, the stiffness of the gel body may be weakened, or it may be difficult to stably maintain additives such as a solvent and a medicinal component contained in the gel body.

The synthetic polymer having a network structure constituting the gel body has an affinity for water and has at least 6
The gel structure is retained even after storage at 0 ° C for one month, and it is particularly limited except that it has been conventionally used as a transdermal application in the fields of cosmetics, pharmaceuticals, quasi-drugs, sanitary materials, sundries, etc. Instead, various synthetic polymers can be used.

Among them, from the viewpoint of easy production, (a) a copolymer of one or more polymerizable unsaturated monomers and a crosslinkable unsaturated monomer, or (b) A) polymerizing one or more polymerizable unsaturated monomers having at least one functional group selected from the group consisting of a carboxyl group, a sulfonic group, a hydroxyl group, an amide group, and an amino group in a side chain; Reacting a hydrophilic synthetic polymer obtained by the above with at least one kind of crosslinkable factor selected from the group consisting of a polyvalent metal ion compound, a polyvalent carboxylic acid, a polyhydric alcohol, a polyfunctional epoxide and a dialdehyde. The crosslinked structure obtained by the above is suitably used.

As the polymerizable unsaturated monomer in the above (a), (meth) acrylic acid (and its salt); t-butylacrylamide sulfonic acid (and its salt), N, N '
-Derivatives of (meth) acrylamide such as dimethylacrylamide and dimethylaminopropylmethacrylamide; vinylpyrrolidone and the like are preferably used from the viewpoint of easy production. These polymerizable unsaturated monomers are used alone or in combination of two or more.

Examples of the crosslinkable unsaturated monomer in the above (a) include N, N'-methylenebisacrylamide, N, N'-methylenebismethacrylamide,
N, N'-ethylenebisacrylamide, N, N'-ethylenebismethacrylamide, 1,2-diacrylamidoethylene glycol and the like can be mentioned.

As the hydrophilic synthetic polymer having a carboxyl group in the side chain in the above (b), poly (meth) acrylic acid or a part or all of the carboxyl group is neutralized with an alkali such as sodium hydroxide. And the like. Examples of the hydrophilic synthetic polymer having a sulfonic acid group in a side chain include poly-t-butylacrylamide sulfonic acid and those obtained by neutralizing a part or all of the sulfonic acid group with an alkali such as sodium hydroxide. Examples of the hydrophilic synthetic polymer having a hydroxyl group in a side chain include polyvinyl alcohol obtained by polymerizing and hydrolyzing a vinyl acetate monomer. Examples of hydrophilic synthetic polymers having an amide group in a side chain include poly (meth) acrylamide,
Poly N, N'-dimethyl (meth) acrylamide, polyvinylpyrrolidone, poly N-vinylacetamide and the like can be mentioned. Examples of the hydrophilic synthetic polymer having an amino group in a side chain include polyallylamine, a polymer obtained by neutralizing some or all of the amino groups with an acid such as hydrochloric acid, and polymethacryloyltrimethyloxyethylammonium chloride.

The monomer constituting the above-mentioned hydrophilic synthetic polymer may have, in addition to a carboxyl group, a sulfonic acid group, a hydroxyl group, an amide group and an amino group, a functional group obtained by modifying these groups. For example, a treatment for esterifying about 40% of the hydroxyl groups or carboxyl groups in the hydrophilic synthetic polymer to make it lipophilic may be performed for the purpose of improving the adhesion to the skin. Further, when there is a long saturated hydrocarbon portion in the side chain, for the purpose of imparting hydrophilicity to the portion,
Further, a carboxyl group, a sulfonic acid group, a hydroxyl group, an amide group, an amino group, or the like may be introduced, or a treatment with a reagent such as an acid or an alkali may be performed. These treatments may be performed before the polymerization of the monomer or after the polymerization.

As described above, examples of the crosslinking factor in the above (b) include polyvalent metal ion compounds, polyvalent carboxylic acids, polyhydric alcohols, polyfunctional epoxides and dialdehydes. Among them, examples of the polyvalent metal ion compound include an aluminum compound, a calcium compound, and a magnesium compound. Among them,
From the viewpoint of crosslinking efficiency, aluminum hydroxide and salts thereof, synthetic aluminum silicate, magnesium magnesium metasilicate, magnesium aluminum oxide, aluminum oxide, dihydroxyaluminum amino acetate, magnesium aluminum hydroxide carbonate hydrate, aluminum hydroxide carbonate Compounds containing trivalent aluminum ions such as sodium coprecipitates are preferred, and those having an amorphous structure are more preferred. Examples of the polycarboxylic acid include succinic acid, fumaric acid, phthalic acid, citric acid, malic acid and the like. Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, butanediol, glycerin, diethylene glycol, diglycerin and the like. As the polyfunctional epoxide, for example, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether, polytetramethylene glycol diglycidyl ether, glycerol polyglycidyl ether, polyglycerol polyglycidyl ether Sorbitol polyglycidyl ether, sorbitan polyglycidyl ether, trimethylolpropane polyglycidyl ether, pentaerythritol polyglycidyl ether, resorcin diglycidyl ether, neopentyl glycol diglycidyl ether, 1,6-hexanediol diglycidyl ether, and the like. Examples of dialdehydes include glyoxal, terephthalaldehyde, glutaraldehyde, and the like.

In the synthetic polymer gel for forming the gel sheet of the present invention, the amount of the synthetic polymer having a network structure constituting the gel is preferably 1 to 50% by weight based on the gel. . If the amount of the synthetic polymer is less than 1% by weight, the stiffness of the gel body becomes weak, and it may be difficult to stably maintain additives such as a solvent and a medicinal component contained in the gel body. . Conversely, when the content exceeds 50% by weight, the gel strength is increased, but the polymer structure of the gel body becomes too dense, and the amount of the solvent, the medicinal component and the like which can be retained in the gel body may be too small. . The compounding amount of the synthetic polymer is particularly preferably from 3 to 30% by weight, and more preferably from 5 to 25% by weight, in the above range.

When the copolymer (a) is used as the synthetic polymer having a network structure, the amount of the crosslinkable unsaturated monomer is 0.005 to 0.5% by weight based on the gel. Preferably it is. If the compounding amount is less than 0.005% by weight, it is difficult to obtain a gel having sufficient waist strength, and it may be difficult to stably maintain additives such as a solvent and a medicinal component contained in the gel. is there. Conversely, if the compounding amount exceeds 0.5% by weight, the brittleness of the obtained gel body increases, and there is a possibility that the gel body may be easily cut or broken by tensile stress or compressive stress.

On the other hand, when the crosslinked structure of the above (b) in which the crosslinkable factor is a polyvalent metal ion compound is used as the synthetic polymer having a network structure, the compounding amount of the polyvalent metal ion compound depends on the gel. It is preferably from 0.1 to 10% by weight. When the crosslinking factor is a polycarboxylic acid or a polyhydric alcohol, the blending amount of the polycarboxylic acid or the polyhydric alcohol is 0.1 to
Preferably it is 5% by weight. When the crosslinking factor is a polyfunctional epoxide or dialdehyde, the blending amount of the polyfunctional epoxide or dialdehyde is preferably 0.01 to 3% by weight based on the gel.

If the amount of the crosslinking factor such as a polyvalent metal ion compound is less than the above range, the resultant synthetic polymer gel has a low stiffness, and additives such as a solvent and a medicinal component encapsulated in the gel. May be difficult to keep stable. Conversely, if the compounding amount exceeds the above range, the brittleness of the gel body increases, and there is a possibility that cutting or breaking may easily occur due to tensile stress or compressive stress.

In the gel sheet, it is preferable that one surface of the sheet has adhesiveness, one surface is non-adhesive, and both surfaces have different degrees of adhesion. Since one side is treated with a non-adhesive agent, it is possible to prevent the gel sheet from sticking to the hand at the time of use, so that the usability can be improved. As a method of non-adhesive treatment, for example, a method containing a cross-linking factor that increases the cross-linking density of the gel by reacting with the synthetic polymer gel, and on the treated surface (hereinafter referred to as non-adhesive surface) ), Which can reduce the adhesion compared to the other untreated surface (hereinafter referred to as an adhesive surface) (hereinafter referred to as a non-adhesive treatment agent). Non-adhesive treatment agent,
Since the cross-linking factor of the non-adhesive treating agent is characterized by increasing the cross-linking density of the gel by reacting with the gel, the gel has a cross-linking factor with the cross-linking factor of the non-adhesive treating agent. Requires a synthetic polymer that can cause Such a synthetic polymer may itself be a synthetic polymer having a network structure constituting a gel body, or separately from a synthetic polymer having a network structure constituting a gel body, its solvent may be contained in a gel body. In addition, an uncrosslinked synthetic polymer included in the gel body may be used.

As the combination of the above non-adhesive treating agent and the gel, from the viewpoint of easy production, (c) as the non-adhesive treating agent, a polyvalent cation, a polycarboxylic acid, a polyhydric alcohol, or a polyhydric alcohol may be used. The synthetic polymer comprising at least one crosslinking factor selected from the group consisting of functional epoxides and dialdehydes, and (d) a synthetic polymer having a network structure constituting a gel, comprises a carboxyl group, a sulfonic acid, Group having at least one functional group selected from the group consisting of a group, a hydroxyl group, an amide group, and an amino group;
A combination of a hydrophilic synthetic polymer obtained by polymerizing at least one kind of polymerizable unsaturated monomer (ie, a synthetic polymer capable of causing a cross-linking reaction with the cross-linking factor of the above (c)) is preferable. .

In the above (d), one or two or more polymerizable unsaturated monomers having at least one functional group selected from the group consisting of a carboxyl group, a sulfonic group, a hydroxyl group, an amide group and an amino group. The method in which the hydrophilic synthetic polymer obtained by polymerizing the monomer has a network structure includes, for example, (e)
A method of producing the copolymerizable unsaturated monomer together with a crosslinkable unsaturated monomer in addition to the polymerizable unsaturated monomer, and (f) a method of polymerizing the polymerizable unsaturated monomer and then preparing a polyvalent metal ion compound. ,
A method of producing a crosslinked structure by reacting with at least one type of crosslinkable factor selected from the group consisting of polyhydric carboxylic acids, polyhydric alcohols, polyfunctional epoxides and dialdehydes.

As described above, as the hydrophilic synthetic polymer having a carboxyl group in the side chain as described in the above (d), poly (meth) acrylic acid or part or all of the carboxyl group may be sodium hydroxide or the like. And those neutralized with an alkali. Examples of the hydrophilic synthetic polymer having a sulfonic acid group in a side chain include poly-t-butylacrylamide sulfonic acid and those obtained by neutralizing a part or all of the sulfonic acid group with an alkali such as sodium hydroxide. Examples of the hydrophilic synthetic polymer having a hydroxyl group in a side chain include polyvinyl alcohol obtained by polymerizing and hydrolyzing a vinyl acetate monomer. Examples of hydrophilic synthetic polymers having an amide group in the side chain include poly (meth)
Acrylamide, poly N, N'-dimethyl (meth) acrylamide, polyvinyl pyrrolidone, poly N-vinyl acetamide, and the like are included. Examples of the hydrophilic synthetic polymer having an amino group in a side chain include polyallylamine, a polymer obtained by neutralizing some or all of the amino groups with an acid such as hydrochloric acid, and polymethacryloyltrimethyloxyethylammonium chloride.

As described above, the monomers constituting the above-mentioned hydrophilic synthetic polymer have not only a carboxyl group, a sulfonic acid group, a hydroxyl group, an amide group, and an amino group but also a functional group obtained by modifying these groups. May be. For example, a treatment for esterifying about 40% of the hydroxyl groups or carboxyl groups in the hydrophilic synthetic polymer to make it lipophilic may be performed for the purpose of improving the adhesion to the skin. Further, when there is a long saturated hydrocarbon portion in the side chain, for the purpose of imparting hydrophilicity to the portion, further introduce a carboxyl group, a sulfonic acid group, a hydroxyl group, an amide group, an amino group, You may treat with reagents, such as an acid and an alkali. These treatments may be performed before the polymerization of the monomer or after the polymerization.

As described above, as described in the above (d),
Examples of the polymerizable unsaturated monomer include (meth) acrylic acid (and its salt); t-butylacrylamide sulfonic acid (and its salt), N, N'-dimethylacrylamide, and dimethylaminopropyl methacrylamide. ) Derivatives of acrylamide; vinylpyrrolidone and the like are preferably used from the viewpoint of easy production. These polymerizable unsaturated monomers are used alone or in combination of two or more.

Further, as described above, examples of the crosslinkable unsaturated monomer described in (e) include N, N'-methylenebisacrylamide, N, N'-methylenebismethacrylamide, N, N '-Ethylenebisacrylamide, N, N'-ethylenebismethacrylamide, 1,2
-Diacrylamide ethylene glycol and the like.

As described above, the crosslinkable factors described in (f) include polyvalent metal ion compounds, polyvalent carboxylic acids, polyhydric alcohols, polyfunctional epoxides, and dialdehydes.

Of these, as described above, examples of the polyvalent metal ion compound include an aluminum compound, a calcium compound, and a magnesium compound. Among them, from the viewpoint of crosslinking efficiency, aluminum hydroxide and salts thereof, synthetic aluminum silicate, magnesium aluminate metasilicate, magnesium aluminum oxide, aluminum oxide, dihydroxyaluminum amino acetate, magnesium aluminum hydroxide carbonate hydrate, hydroxide Compounds containing trivalent aluminum ions such as aluminum sodium carbonate coprecipitate are preferred, and those having an amorphous structure are more preferred. Examples of the polycarboxylic acid include succinic acid, fumaric acid, phthalic acid, citric acid, malic acid and the like. Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, butanediol, glycerin, diethylene glycol, diglycerin and the like. As the polyfunctional epoxide, for example, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether, polytetramethylene glycol diglycidyl ether, glycerol polyglycidyl ether, polyglycerol polyglycidyl ether Sorbitol polyglycidyl ether, sorbitan polyglycidyl ether, trimethylolpropane polyglycidyl ether, pentaerythritol polyglycidyl ether, resorcin diglycidyl ether, neopentyl glycol diglycidyl ether, 1,6-hexanediol diglycidyl ether, and the like. Examples of dialdehydes include glyoxal, terephthalaldehyde, glutaraldehyde, and the like.

In the case of producing by a copolymerization method (e) as a method having a network structure, the compounding amount of the crosslinkable unsaturated monomer is 0.005 to 0.5% by weight based on the gel body. Is preferred. If the compounding amount is less than 0.005% by weight, it is difficult to obtain a gel having sufficient waist strength, and it may be difficult to stably maintain additives such as a solvent and a medicinal component contained in the gel. is there. Conversely, if the compounding amount exceeds 0.5% by weight, the brittleness of the obtained gel body increases, and there is a possibility that the gel body may be easily cut or broken by tensile stress or compressive stress.

On the other hand, as a method having a network structure, in the case of producing the crosslinked structure of the above (f) in which the crosslinking factor is a polyvalent metal ion compound, the compounding amount of the polyvalent metal ion compound is based on the gel body. It is preferably 0.1 to 10% by weight. When the crosslinking factor is a polycarboxylic acid or a polyhydric alcohol, the blending amount of the polycarboxylic acid or the polyhydric alcohol is preferably 0.1 to 5% by weight based on the gel. When the crosslinking factor is a polyfunctional epoxide or dialdehyde, the blending amount of the polyfunctional epoxide or dialdehyde is preferably 0.01 to 3% by weight based on the gel.

If the amount of the crosslinkable factor such as a polyvalent metal ion compound is less than the above range, the resulting synthetic polymer gel has a low stiffness, and the solvent and other additives contained in the gel, such as a medicinal component and the like. May be difficult to keep stable. Conversely, if the compounding amount exceeds the above range, the brittleness of the gel body increases, and there is a possibility that cutting or breaking may easily occur due to tensile stress or compressive stress.

Examples of the crosslinkable factor as the non-adhesive treating agent (c) include polyvalent cations described later, polyvalent carboxylic acids, polyhydric alcohols, polyfunctional epoxides, and dialdehydes. . Examples of the polycarboxylic acid include succinic acid, fumaric acid, phthalic acid, citric acid, malic acid and the like. Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, butanediol, glycerin, diethylene glycol, diglycerin and the like. As the polyfunctional epoxide, for example, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether, polytetramethylene glycol diglycidyl ether, glycerol polyglycidyl ether, polyglycerol polyglycidyl ether Sorbitol polyglycidyl ether, sorbitan polyglycidyl ether, trimethylolpropane polyglycidyl ether, pentaerythritol polyglycidyl ether, resorcin diglycidyl ether, neopentyl glycol diglycidyl ether, 1,6-hexanediol diglycidyl ether, and the like. Examples of dialdehydes include glyoxal, terephthalaldehyde, glutaraldehyde, and the like.

Further, for the non-adhesive treatment to be applied to one surface of the synthetic polymer gel body for forming the gel sheet, the hydrophilic synthetic polymer described in (d) above and the crosslinking factor described in (c) above are preferably used. The combination comprises, from the viewpoint of easier production, such a hydrophilic synthetic polymer, a hydrophilic synthetic polymer obtained by polymerizing a polymerizable unsaturated monomer having at least an anionic functional group, In addition, a combination of those having at least a polyvalent cation is preferable as such a crosslinking factor.

The above-mentioned anionic functional groups are all functional groups capable of chemically bonding to cations in water. From the viewpoint of easy production, -COOH, -COOX
A carboxyl group represented by (X; counter ion) is preferred.

The above-mentioned polyvalent cations are all cations having two or more valencies, and from the viewpoint of crosslinking reaction efficiency, for example, Al ³⁺ , Fe ³⁺ , Ti ³⁺ , In ³⁺ , Zr ⁴⁺ , Ta ⁵⁺
Trivalent or higher ions are preferred.

The form of the polyvalent cation may be a salt that is soluble in water such as aluminum chloride, or a salt that is hardly soluble in water such as synthetic aluminum silicate. I don't care. The selection of the solubility / poor solubility of these salts selects the one most suitable for the production method. That is, if the purpose of such non-adhesive treatment is to be carried out immediately, it may be selected in the form of a salt which is soluble in the solvent contained in the selected non-adhesive treating agent or gel at that time. When the treatment is intended to be performed for, for example, one hour or more, a salt form that is hardly soluble in the solvent contained in the non-adhesive treatment agent or gel selected at that time may be selected.

The non-adhesive treating agent for treating one surface of the synthetic polymer gel body for forming the gel sheet may contain a solvent in addition to the above-mentioned crosslinkable factor. Examples of such a solvent include water and ethyl alcohol. Examples include alcohols, polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, and glycerin. As described above, the crosslinking agent may be dissolved in such a solvent or may not be dissolved as in a slurry. Further, the non-adhesive treating agent may contain various additives as necessary.

The amount of the non-adhesive treating agent to be applied to the surface of the gel body is 1 × 10 ⁻¹⁰ equivalent / cm ² to 1 × 10 ^{−2 in} terms of the crosslinking equivalent of the crosslinking factor per square centimeter of the gel body surface.
It is preferably equivalent / cm ² . Processing amount is 1 × 10 ^-10
If it is less than the equivalent weight / cm ^2, the difference in adhesion between the non-adhesive surface and the adhesive surface does not appear remarkably, and handling may be poor during use. On the other hand, when the treatment amount is larger than 1 × 10 ^-2 equivalent / cm ² , the non-adhesive treatment of the non-adhesive surface is sufficiently performed and no longer works effectively. Here, the cross-linking equivalent of the cross-linking factor refers to the amount of the cross-linking points of the cross-linking factor expressed in moles.

When a non-adhesive treating agent is applied to one surface of a synthetic polymer gel body for forming a gel sheet, such a surface may be treated with a uniform treatment amount over one surface, or may be partially treated. The processing amount may be non-uniform. Therefore, the surface may be non-uniformly treated within the above-mentioned preferable treatment amount.

The thickness of the sheet-like whitening pack cosmetic such as the gel sheet of the present invention may be appropriately set according to the use condition, and may be uniform throughout or partially different in thickness. Although it may be good, it is preferable to be in the range of 0.1 to 3 mm in consideration of discomfort and strength when affixed to the skin. If the thickness of the entire sheet-like whitening pack material is less than 0.1 mm, the strength of the pressure-sensitive adhesive gel sheet may be reduced. On the other hand, if it exceeds 3 mm, the self-weight of the sheet becomes too large, and there is a possibility that an uncomfortable feeling may be caused when the sheet is attached to the skin. If the entire sheet-like whitening pack cosmetic is not thick, it is possible to partially increase the thickness of the sheet to about 6 mm.

In the gel sheet used in the present invention, a woven fabric having a sufficiently large opening ratio inside the gel body is used for the purpose of improving the tear strength and handleability of the adhesive gel sheet without impairing the transparency of the gel sheet. Alternatively, the nonwoven fabric can be included in the thickness direction.

The above-mentioned woven or nonwoven fabric having a large aperture ratio means a material having a wide aperture ratio (transparency is maintained) such that a 10-point type can be read even through a woven or nonwoven fabric.

[0050] In addition to the above-mentioned various components, various additives can be added to the sheet-like whitening pack cosmetic of the present invention. For example, in addition to other medicinal ingredients for the purpose of treating beauty, facial and skin, etc., humectants, thickeners, fragrances, coloring agents, stabilizers, antioxidants, ultraviolet absorbers, tackifiers, pH adjustment Agents, chelating agents, surfactants, preservatives, antibacterial agents and the like.

The above-mentioned medicinal ingredients which can be appropriately compounded include:
Conventionally, pharmaceuticals, quasi-drugs, cosmetics, sanitary materials, is not particularly limited as long as it is used in miscellaneous goods, for example, Ashitaba extract, avocado extract, amateur extract, Altea extract, Arnica extract, Apricot kernel extract, fennel extract, turmeric extract, oolong tea extract, echina pear extract, oak extract, barley extract, Dutch mustard extract, seawater dried product, hydrolyzed elastin, hydrolyzed silk, chamomile extract, carrot extract, kawagomugi extract, calcaret extract ,
Kiwi extract, kina extract, cucumber extract, guanosine, kumazasa extract, walnut extract, clematis extract, burdock extract, comfrey extract, collagen, lingonberry extract, psycho extract, saitai extract,
Salvia extract, Sabonsou extract, Sasa extract, Hawthorn extract, Shiitake mushroom extract, Jiaogu extract, Sikon extract, Shinanoki extract, Spiraea extract, Shobu root extract, Birch extract, Horsetail extract, Honeysuckle extract, Scotch extract, Atlantic hawthorn extract, Western elderberry extract, Achillea millefolium extract, A. mint extract, mallow extract, assembly extract, psyllium extract, thyme extract, clove extract, scotch extract, chimney extract, spruce extract,
Dokudami extract, Natto extract, Carrot extract, Nobara extract, Bakumondou extract, Parsley extract, honey, Parietaria extract, Hioki sorghum extract, Futandanpopo extract, Fukinotou extract, Bukuryo extract, Butcher bloom extract, Propolis, Loofah extract, Peppermint extract, Bodaiju Extract, hop extract, pine extract, marronie extract, mugwort extract, mukuroji extract, cornflower extract, eucalyptus extract, mugwort extract, lavender extract, lettuce extract, lemon extract, astragalus extract, rose extract, rosemary extract, roman chamomile extract, royal jelly extract And the like.

Also, biopolymers such as deoxyribonucleic acid, mucopolysaccharide, sodium hyaluronate, sodium chondroitin sulfate, collagen, elastin, chitin, chitosan, hydrolyzed eggshell membranes; amino acids, urea, sodium pyrrolidonecarboxylate, betaine, whey , Moisturizing components such as trimethylglycine; oily components such as sphingolipids, ceramides, cholesterol, cholesterol derivatives, and phospholipids; anti-inflammatory agents such as ε-aminocaproic acid, glycyrrhizic acid, β-glycyrrhetinic acid, lysozyme chloride, guaiazulene, and hydrocortisone; Vitamins other than vitamin C such as vitamins A, B ₂ , B ₆ , D, E, calcium pantothenate, biotin, nicotinamide; allantoin, diisopropylamine dichloroacetate, 4-amido Active ingredients such as nomethylcyclohexanecarboxylic acid; Antioxidants such as tocopherol, carotenoid, tannin, lignan, saponin; Vitamin E
Blood circulation promoting agents such as derivatives; wound healing agents such as retinol and retinol derivatives; cepharanthin, capsicum tincture, hinokitiol, garlic iodide extract, pyridoxine hydrochloride, dl-α-tocopherol, dl-α-acetate
Tocopherol, nicotinic acid, nicotinic acid derivatives, calcium pantothenate, D-pantothenyl alcohol, acetyl pantothenyl ethyl ether, biotin, allantoin, isopropylmethylphenol, estradiol, ethinylesteradiol, capronium chloride,
Benzalkonium chloride, diphenhydramine hydrochloride, tacanal, camphor, salicylic acid, nonylate vanillylamide, nonylate vanillylamide, pyrocton olamine, glyceryl pentadecanoate, l-menthol, pyrrolidone carboxylate of menthol, mononitroguaiacol,
Resorcinol, γ-aminobutyric acid, benzethonium chloride, mexiletine hydrochloride, auxin, female sex hormone, canthari tincture, cyclosporine, hydrocortisone, polyoxyethylene sorbitan monostearate, peppermint oil,
Examples include painkillers, tranquilizers, antihypertensives, antibiotics, antihistamines, antibacterials and the like.

The amounts of these optional components cannot be specified unconditionally because the amount of the active component varies depending on the material.
When blended, it is generally preferably 0.001 to 80% by weight, more preferably 0.05 to 30% by weight, based on the weight of the cosmetic portion of the sheet-like whitening pack cosmetic.

Examples of the humectant include ethylene glycol, propylene glycol, butylene glycol, diethylene glycol, dipropylene glycol,
Examples include glycerin, diglycerin, sorbitol, malbitol, trehalose, raffinose, xylitol, mannitol, hyaluronic acid and salts thereof, polyhydric alcohols such as polyethylene glycol and polyglycerin, and polysaccharides. These can be used alone or in combination of two or more.

As the thickener, those having a relatively small amount and a certain degree of viscosity of the mixed liquid are preferable, and examples thereof include water-soluble polymers such as polyethylene oxide and hydroxyethyl cellulose.

An example of a method for producing a gel sheet will be described below.
The gel sheet is a synthetic polymer having a network structure constituting the gel body, (g) a copolymer of one or more polymerizable unsaturated monomers and a crosslinkable unsaturated monomer, or ( h) carboxyl group, sulfonic group, hydroxyl group,
A hydrophilic synthetic polymer obtained by polymerizing one or more polymerizable unsaturated monomers having at least one functional group selected from the group consisting of an amide group and an amino group, and a polyvalent metal It is preferably a crosslinked structure obtained by reacting with at least one type of crosslinking factor selected from the group consisting of ionic compounds, polycarboxylic acids, polyhydric alcohols, polyfunctional epoxides and dialdehydes.

A method for producing a gel when the copolymer (g) of the polymerizable unsaturated monomer and the crosslinkable unsaturated monomer is used as a synthetic polymer having a network structure is as follows. For example, a method in which a polymerizable unsaturated monomer, a crosslinkable unsaturated monomer, and a polymerization initiator are added to a solvent constituting a gel to carry out polymerization. For the polymerization, a system in which the polymerization is started by heating or light irradiation or by adding a polymerization initiator may be selected.

On the other hand, when the crosslinked structure obtained by reacting the hydrophilic synthetic polymer with the crosslinkable agent of the above (h) is used as a synthetic polymer having a network structure, a method for producing a gel body is as follows. For example, there is a method in which a hydrophilic synthetic polymer polymerized in advance in the same manner as described above is dissolved, and a crosslinking reaction is performed by adding a crosslinking factor to the solution. The cross-linking reaction may be started by heating or may be started by adding a reaction initiator. Alternatively, a system in which a crosslinking reaction starts immediately upon addition of a crosslinking factor may be selected.

In the case where a gel is obtained by polymerizing the unsaturated monomer of the above (g), when thermal polymerization is carried out using a solution in which the above-mentioned monomer and solvent are mixed, azobiscyanovaleric acid or Azo-based polymerization initiators such as azobisaminopropane dihydrochloride, or ferrous sulfate, dithionite,
Polymerization can be carried out by adding a redox-based polymerization initiator comprising a reducing agent such as pyrosulfite and a peroxide such as hydrogen peroxide, t-butyl hydroperoxide and peroxodisulfate. These azo-based polymerization initiators and redox-based polymerization initiators may be used alone or in combination as needed. In the case where a redox polymerization initiator is used, a system in which polymerization is initiated only by adding it without heating may be used. In the case of photopolymerization, photoradical polymerization initiators such as acetophenone, benzoin ether, phosphorus, benzophenone, thioxanthone, and azo, and cationic photopolymerization such as diazonium salts, diallyliodonium salts, and triarylsulfonium salts. Polymerization can be carried out by adding an initiator or the like.

The thickness of the gel sheet is adjusted by, for example, using an extruder or a doctor blade to spread the gel-forming composition before the curing of the gel body, or using a container having a predetermined thickness. For example, by filling a blister container.

In the latter method of filling a container having a predetermined thickness, if the shape of the container is formed in accordance with the shape of the adhesive sheet for living body at the time of use, the in-line manufacturing process is facilitated, and the manufacturing process is facilitated. It becomes more preferable. Furthermore, compared with the method of forming a long belt-like gel body and punching it into the intended shape at the time of use, the amount of gel to be discarded is reduced, and since there is no contact between the gel body and the punching blade, sanitary It is also preferable from the viewpoint of being appropriate.

As a method of treating one surface of the gel sheet with the non-adhesive treating agent, (i) after the curing of the gel body is completed, the surface may be treated with the non-adhesive treating agent. Alternatively, before the curing of the gel body (j), the surface thereof may be treated with a non-adhesive treating agent. In the present invention, "the curing of the gel body is completed"
It means that the composition before gelation has undergone a gelling reaction and has a shape-retaining property.

The production method in the case of the above (i) is as follows. One surface of the cured gel body is coated with, for example, a coater,
A method of applying a non-adhesive treating agent by a method such as coating using a printing machine or a brush or spraying using a spray or the like is preferable.

In the case of the above (j), a method for producing a gel-forming composition before the completion of curing, the thickness of which has been adjusted by the above-described method, may be, for example, a coater, a printing machine, or the like.
A method of applying a non-adhesive treating agent by a method such as coating using a brush or spraying using a spray or the like is preferable.

However, as the production conditions in the case of the above (j), the gel-forming composition when one of the surfaces of the gel-forming composition before curing is treated with a non-adhesive treating agent is not less than a certain amount. It is desirable to have a viscosity. The viscosity is preferably 1,000 centipoise or more. That is, when the viscosity of the gel-forming composition when treated with the non-adhesive treating agent is smaller than 1,000 centipoise, the gel-forming composition and the non-adhesive treating agent are mixed,
The effect of the non-adhesive treating agent acts on the other surface that has not been subjected to the treatment, and as a result, there is a possibility that no difference occurs in the degree of adhesion between both surfaces of the produced adhesive gel sheet.

In the above method (j), when the thickness of the gel-forming composition is adjusted before the curing is completed, the gel-forming composition is treated with a non-adhesive treatment agent. It is also possible to cause a difference in the degree of adhesion between the two surfaces of the pressure-sensitive adhesive gel sheet. That is, when adjusting the thickness of the gel-forming composition before the completion of curing, a sheet capable of interposing a non-adhesive treating agent (hereinafter, referred to as an interposed sheet), interposing the non-adhesive treating agent on one surface, After placing the intervening sheet on the gel-forming composition before the completion of the curing, the thickness of the gel-forming composition before the completion of the curing is adjusted using a doctor blade or a squeegee. As a result, the non-adhesive treating agent held by the interposed sheet can be transferred to the gel-forming composition, and this is allowed to stand until the completion of the curing of the gel body, whereby the desired adhesion of both surfaces is achieved. Gel sheets of different degrees can be obtained.

In the case of such a production method, the viscosity of the gel-forming composition immediately before the thickness adjustment is performed is 10,000 to 2.0.
Preferably, it is 0.000 centipoise. That is, if it is smaller than 10,000 centipoise, the gel-forming composition and the non-adhesive treating agent mix, and the effect of the non-adhesive treating agent acts on the other untreated surface. There is a possibility that no difference occurs in the degree of adhesion between both surfaces of the adhesive gel sheet. Also,
If it is larger than 2,000,000 centipoise, it may be difficult to adjust the thickness of the gel-forming composition itself.

As the intervening sheet, any sheet can be used as long as the non-adhesive treating agent can be interposed on one side, and examples thereof include a plastic sheet, a sponge sheet, paper, a woven fabric, and a nonwoven fabric. Since the intervening sheet is peeled off from the gel sheet by the time of use, a plastic sheet or the like that is easily peelable is preferable.

In order to make the non-adhesive treating agent easily intervene in the interposed sheet, a thickener can be added to the non-adhesive treating agent.

Until the gel sheet is used, at least the plastic film such as polyethylene, polypropylene or polyethylene terephthalate is left as it is on the adhesive side, or a release agent such as silicone resin is applied to the surface of the plastic film. Alternatively, it is preferable from the viewpoint of hygiene that it is pasted as a release paper in a baked state. Further, from the viewpoint of preventing drying of the gel sheet and considering hygiene, it is preferable to further apply the release paper to the non-adhesive surface side.

Note that the release paper that has been pasted cannot sufficiently follow the movement of the skin surface due to its poor flexibility, and thus needs to be peeled off at the time of use. If the release paper is used with the release paper attached to the non-adhesive surface, the release paper will peel off from the gel sheet during use, making it difficult to handle.
The release paper may be used as an underlay or a surface material during the gel production process of the gel sheet, or may be attached after the production of the gel sheet is completed.

The shape of the sheet-like whitening pack cosmetic comprising the gel sheet of the present invention is not particularly limited.
Oval, circular, heart-shaped, semi-circular, semi-elliptical, square,
A shape along an application site such as a rectangle, a trapezoid, or a triangle, or a combination thereof can be given, and a shape that can be most appropriately stuck to an application site may be appropriately designed. It is also preferable to design the shape according to the shape of the face, eyes, forehead, cheeks and the like. If a convex or concave portion is provided for the purpose of alignment or the like at the center or peripheral portion of the sheet-like whitening pack cosmetic, or a notch or a hollow portion is provided according to the shape of the used portion, the handleability is improved. be able to.

The sheet-like whitening pack cosmetic of the present invention may be applied to the face (lips, cheeks, eyes, upper and lower eyes,
Nose, forehead), arm, leg, chest, abdomen, back, neck and the like. Sheet-shaped whitening pack cosmetics,
The area, thickness, adhesive properties of the adhesive surface, and the like may be appropriately adjusted according to the application site. For example, if the application site is the entire face, cut out the parts corresponding to the positions of the eyes and mouth,
A shape with a cut in the part corresponding to the position of the nose,
Further, since the bonding area is large, it is preferable to perform adjustment such as increasing the adhesive strength of the adhesive surface or reducing the thickness.

It is preferable that the sheet-like whitening pack cosmetic of the present invention is prepared with a lotion containing a physiologically active ingredient before and / or after use. It is also preferable to prepare the skin with milk or cream containing a physiologically active ingredient after use. Since the sheet-like whitening pack cosmetic of the present invention, particularly the gel sheet type, has an excellent effect of removing excess keratin from the skin, the skin condition can be more effectively improved by adjusting the skin with these preparations after use.

[0075]

The present invention will be described in more detail with reference to the following Examples and Comparative Examples. The evaluation methods used in the examples and comparative examples are as follows.

[Evaluation of Skin Utility] Ten expert panelists were prepared for each evaluation item (however, panelists may be duplicated depending on the item), and evaluations were made in accordance with the evaluation criteria shown in Table 1. The total score was used as the evaluation result. Therefore, the higher the score, the higher the usefulness for the evaluation item. (Score: 50 points)

[Table 1] Reference points --------------------------------------- ---------- It seems that the effect is high. 5 Effect is felt 4 Effect is felt slightly 3 Effect is felt only slightly 2 Effect is not felt 1

Example 1 (Transparent Sheet Whitening Packing Material) A gel sheet type transparent sheet whitening packing material was prepared by the following method. Table 2 shows the composition of the gel-forming composition of the synthetic polymer gel to form the gel sheet and the non-adhesive treating agent. The medicinal component was previously dissolved in a humectant and then blended.

[Table 2] Composition weight% --------------------------------------- --------------------- <Gel-forming compound> Hydrophilic synthetic polymer Polyacrylic acid (Molecular weight: about 5,000,000) 2.0 Sodium polyacrylate ( 6.0 Crosslinking factor Synthetic aluminum silicate 1.3 Moisturizer 1,3-butylene glycol 10.0 Preservative Sodium dehydroacetate 0.3 Pharmaceutical ingredient Fire spike extract 0.15 Placenta extract (whitening) 0.1) Dipotassium glycyrrhizinate 0.1 Raspberry ketone glucoside (whitening agent) 0.1 Licorice flavonoid (whitening agent) 0.001 N-methyl-L-serine 0.1 Purified water balance Total 100.0 <Non-adhesive Treatment Agent> Crosslinking Factor Potassium Alum Decahydrate (Al Content: 6%) 0.6 Solvent Purified Water Residual Total 100.0

Components other than the crosslinking factor (synthetic aluminum silicate) among the gel-forming compounds shown in Table 2 were mixed,
After kneading at 50 ° C. for about 30 minutes to make it uniform, the above-mentioned crosslinking factor was added and kneading was further made at 60 ° C. for about 10 minutes to make it uniform. The gel-forming composition thus obtained was applied to a thickness of 1
It was spread uniformly on a 00 μm polypropylene sheet to a thickness of 0.8 mm using a doctor blade. This was left at room temperature for about 2 hours to complete the curing of the gel, thereby forming a synthetic polymer gel.

A non-adhesive treating agent obtained by dissolving a crosslinking factor (potassium alum decahydrate) shown in Table 2 in a solvent (purified water) was uniformly applied on the synthetic polymer gel using a brush.
It was coated and treated at 3 mg / cm ² (ie, 4 × 10 ⁻⁸ equivalent / cm ^{2 in} terms of crosslinking equivalent).

Further, a 50 μm-thick polypropylene sheet was placed on the surface of the gel treated with this non-adhesive treating agent, and cuts were made at the positions of the eyes and nose according to the shape of the face, and the mouth was punched out. Shape (length = 180mm, width = 2
20 mm) to obtain the desired transparent final product.

Example 2 (Beauty liquid impregnated sheet-like whitening pack material) An impregnated type beauty liquid-impregnated sheet-like whitening pack material was prepared according to the formulation shown in Table 3 below. As a production method, after cutting a non-woven fabric made of rayon fiber into a face shape,
The nonwoven fabric was immersed in the serum shown in Table 3 below, impregnated with the serum, and then packaged to obtain a product.

[Table 3] Ingredient weight% --------------------------------------- ---------------------- (1) 1,3-butylene glycol 3.0 (2) Celtrol 0.2 (3) Polyoxyethylene hydrogenated castor oil (60E.0.0) 1.0 (4) Ethanol 10.0 (5) Methyl parahydroxybenzoate 0.05 (6) Fire spike extract 0.15 (7) Placenta extract (whitening agent) 0.1 (8) ) Dipotassium glycyltinate 0.1 (9) Raspberry ketone glucoside (whitening agent) 0.1 (10) N-methyl-L-serine 0.1 (11) Licorice flavonoid (whitening agent) 0.001 (12) Purified water residue Amount Total 100.0

Adjustment method: The component (11) is dissolved in the ethanol (4) in advance, and the components (1) to (10) are sequentially added to the component (12) and uniformly dissolved.

Example 3 (Package for Transparent Whitening Sheet for Local Use on the Face) In place of the medicinal component of Example 1, the components shown in Table 4 below were blended, and the shape was changed to a circle having a diameter of 15 mm. A transparent product was obtained in the same manner as in Example 1.

[Table 4] Pharmaceutical Ingredient Weight% --------------------------------------- ------ Fire spine extract 0.15 Placenta extract (whitening agent) 0.1 Dipotassium glycyrrhizinate 0.1 Vitamin C (whitening agent) 3.0 Hibiscus extract (whitening agent) 1.3 Glycolic acid (whitening agent) 0.5) Keratolytic enzyme (protease) (whitening agent) 1.2

Example 4 (Packing material for whitening sheet containing transparent sheet in woven cloth) A gel-forming product was prepared in the same manner as in Example 1 except that the fire thorn extract was blended in Example 1 but no other whitening agent was blended. A formulation was produced. Next, a 100-μm-thick polypropylene sheet was uniformly spread to a thickness of 0.4 mm using a doctor blade, and a 15-denier nylon woven fabric was placed thereon. Was spread with a thickness of about 0.4 mm. This was left at room temperature for about 2 hours to complete the curing of the gel, thereby forming a synthetic polymer gel. Subsequently, treatment with the same non-adhesive treating agent as in Example 1 was performed and punching was performed to obtain a transparent product.

Comparative Example 1 (Lotion) A lotion was prepared according to the formulation shown in Table 5 below.

[Table 5] Ingredient weight% --------------------------------------- --------------------- (1) Glycerin 2.0 (2) 1,3-butylene glycol 3.0 (3) Polyoxyethylene (20E.0. ) Sorbitan mono laurate 1.5 (4) Ethanol 7.0 (5) Methyl parahydroxybenzoate 0.05 (6) Fire spike extract 0.15 (7) Placenta extract (whitening agent) 0.1 (8) Glyciritin Dipotassium acid 0.1 (9) Raspberry ketone glucoside (whitening agent) 0.1 (10) N-methyl-L-serine 0.1 (11) Licorice flavonoid (whitening agent) 0.001 (12) Purified water balance Total 100.0

Adjustment method: The component (11) is dissolved in the ethanol (4) in advance, and the components (1) to (10) are sequentially added to the component (12) and uniformly dissolved.

Comparative Example 2 A product was obtained in the same manner as in Example 1 except that 1,3 butylene glycol was used instead of the fire thorn extract of Example 1.

Comparative Example 3 A product was obtained in the same manner as in Example 1 except that 1,3 butylene glycol was used instead of the fire thorn extract and the whitening agent of Example 1.

Table 6 shows the evaluation results of the examples and the comparative examples. In addition, except for Comparative Example 1, each evaluation was performed in such a form that each sample was used for 20 minutes after washing the face before going to bed, and that it was continued for one week (two weeks only in Example 3) and then answered in a questionnaire. Was.

[Table 6] Excellent whitening effect Makes skin smooth Excellent cooling effect ------------------------------ ----------------------------- Example 1 45 43 48 Example 2 40 39 36 Example 3 48 49 ―― Example 4 41 42 46 Comparative Example 1 34 36 19 Comparative Example 2 34 39 47 Comparative Example 3 13 23 42

From the results shown in Table 6, it was found that the examples of the present invention were superior in the whitening effect as compared with the comparative examples. Example 1
Many respondents said that the impression was that the whole face was brighter than that the spots and wrinkles could be removed. In Example 2, unlike the case where the lotion of Comparative Example 1 was simply applied, overall evaluation was high. Example 3
Although it is a whitening patch for topical use on the face, the effect of improving the transparency of the site of use and improving fine wrinkles was recognized. Example 4 was a case where a whitening agent other than the fire thorn extract was removed, but the overall evaluation was excellent. Comparative Example 2 is an example in which the fire thorn extract was removed, but there was no difference in the cooling effect (to suppress skin heat) as compared with Example 1, but the whitening effect and the skin condition improving effect were slightly inferior. I found out. Comparative Example 3
Is the one without the fire spine extract and whitening agent,
The evaluation was worse for each item compared to.

[0097]

From the above results, it can be seen that the present invention incorporates a fire thorn extract having an excellent whitening effect and processes it into a sheet having an excellent percutaneous absorbability to provide an excellent whitening effect and skin conditioning. It is apparent that the present invention provides a sheet-like whitening pack cosmetic which is excellent in the effect of cooling skin heat.

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Claims (6)

[Claims] 1. A sheet-like whitening pack cosmetic comprising a fruit extract having a Chinese name "fire spine", which is a member of the genus Pyracantha in the family Rosaceae. 2. A sheet-shaped whitening pack cosmetic comprising: a fruit extract of Chinese name "Fire Thorn" which is a member of the genus Pyracantha in the family Rosaceae; and a whitening agent. 3. The sheet-shaped pack cosmetic according to claim 1, wherein one surface of the cosmetic has adhesiveness, and one surface is non-adhesive, or the two surfaces have different degrees of adhesion. Or the sheet-like whitening pack cosmetic according to item 2. 4. The sheet-shaped pack cosmetic is a synthetic polymer gel having a network structure containing at least water as a solvent, and after the curing of the synthetic polymer gel is completed, one surface is subjected to a non-adhesive treatment. 3. The sheet-like whitening pack cosmetic according to claim 1, wherein one surface of the sheet is made to be an adhesive surface and the other surface is made to be a non-adhesive surface by applying the agent. 5. The sheet-like whitening pack cosmetic according to any one of claims 1 to 4, wherein the cosmetic is transparent in appearance. 6. The sheet-shaped pack cosmetic according to any one of claims 1 to 5, wherein a woven or non-woven fabric having a sufficiently large opening ratio is internally provided in the thickness direction. Pack cosmetics for sheet whitening.