JP6778571B2 - Sheet cosmetics - Google Patents

Description

The present invention relates to sheet cosmetics.

The sheet cosmetic is formed by impregnating the sheet base material with the cosmetic composition. Sheet cosmetics include body sheet cosmetics whose main purpose is to keep the skin clean by wiping off dirt such as sweat, sebum stains and old keratin, and face sheet cosmetics whose main purpose is to remove makeup and wash the face. Etc. are known.

In particular, in recent years, body sheet cosmetics have been required to wipe off dirt, suppress stickiness, and not only give a refreshing feeling after use, but also give the skin a smooth and smooth feeling. ..

Conventionally, there has been known a technique of blending a powder into a cosmetic composition impregnated with a sheet base material to give a smooth and moist feeling to the skin after use. However, when powder is contained, there is a problem that the feeling of use is impaired or whitening on the skin is likely to occur depending on the type and amount of the powder.

For example, Cited Documents 1 and 2 and the like describe sheet cosmetics that improve white residue by blending powder and give a smooth feeling to the skin.

JP-A-2002-201109 Japanese Unexamined Patent Publication No. 2000-1424

The present inventors have found that it is effective to use silica (particularly spherical silica) as a powder in order to give a smooth feeling to the skin after use in a sheet cosmetic. However, in the case of sheet cosmetics containing a relatively large amount of silica (particularly spherical silica), silica precipitates during storage (a state in which a plurality of sheet cosmetics are stacked and stored in a packaging container, and the upper part is above. Silica in the sheet cosmetics sinks to the bottom of the packaging container), and the silica content can differ between the upper sheet cosmetics and the lower sheet cosmetics, so it is used for each sheet cosmetic in the packaging container. It was found that problems such as different feelings and whitening occur when the lower sheet cosmetics in the packaging container are used.

Therefore, an object of the present invention is a sheet cosmetic that can give a smooth feeling to the skin after use by wiping the skin, has less whitening, and is used even when a plurality of sheets are laminated and stored. The purpose is to provide sheet cosmetics with a small difference in usability.

As a result of diligent studies to achieve the above object, the present inventors have contained a specific amount of silica, a specific amount of cationized polymer, and water, and the contents of the cationic surfactant and the nonionic surfactant are respectively. By making a sheet cosmetic in which a non-woven fabric is impregnated with a cosmetic composition of less than a specific amount, it is a sheet cosmetic that can give a smooth feeling to the skin after use by wiping the skin, and there is little whitening. Moreover, it has been found that when a plurality of sheets are laminated, a sheet cosmetic having a small difference in usability between the upper and lower sheets can be obtained. The present invention has been completed based on these findings.

That is, the present invention is a sheet cosmetic containing a non-woven fabric and a cosmetic composition impregnated in the non-woven fabric, wherein the cosmetic composition comprises the following component (A), the following component (B), and the following. The content of the component (A) in the cosmetic composition containing the component (C) is 0.5 to 15% by mass, and the content of the component (B) is 0.0005% by mass or more and 0.1% by mass. The content of the cationic surfactant in the cosmetic composition is less than 0.01% by mass, and the content of the nonionic surfactant is less than 0.2% by mass. Provide sheet cosmetics.
Component (A): Silica Component (B): Cationic polymer Component (C): Water

The content of the nonionic surfactant in the cosmetic composition is preferably less than 0.05% by mass.

The component (B) is preferably a polymer containing a structural unit derived from dimethyldiallyl ammonium chloride.

The content of the alcohol having 1 to 4 carbon atoms in the cosmetic composition is preferably 20 to 65% by mass.

The cosmetic composition preferably contains talc.

The cosmetic composition preferably contains one or more ester oils selected from the group consisting of diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, and ethyl oleate.

The sheet cosmetic of the present invention is a sheet cosmetic that can give a smooth feeling to the skin after use by wiping the skin, has less whitening, and is used between the upper and lower layers when a plurality of sheets are laminated and stored. The difference in usability is small. Although not particularly limited, the smooth feeling refers to a feeling of low skin friction that is felt when rubbing the skin. In addition, whitening refers to a phenomenon in which the skin becomes white or white traces remain due to residual powder or the like after using the sheet cosmetics.

The sheet cosmetic of the present invention includes a non-woven fabric and a cosmetic composition impregnated in the non-woven fabric. In addition, in this specification, the said cosmetic composition which constitutes the sheet cosmetic of this invention may be referred to as "the cosmetic composition of this invention". The sheet cosmetics of the present invention may contain components other than the non-woven fabric and the cosmetic composition of the present invention.

<Cosmetic composition>
The cosmetic composition of the present invention contains silica, a cationized polymer, and water as essential components. In addition, the cosmetic composition of the present invention may contain other ingredients. The cosmetic composition of the present invention is a so-called impregnating liquid used by impregnating a non-woven fabric. In the present specification, the silica may be referred to as "component (A)", the cationized polymer may be referred to as "component (B)", and the water may be referred to as "component (C)".

As each component that can be contained in the cosmetic composition of the present invention, that is, the component (A), the component (B), the component (C), and other components may be used alone or only 1 type may be used. More than a seed may be used.

Further, in the present specification, the content of each component (for example, component (A), component (B), component (C), other component, etc.) contained in the cosmetic composition of the present invention is determined by the makeup. It can be appropriately selected from the range described so that the total content in the composition is 100% by mass or less.

(Component (A): Silica)
The silica as the component (A) is not particularly limited, and silica generally used in cosmetic compositions can be used. It is considered that the use of silica gives the feeling that the silica particles roll on the skin, but it is possible to give the feeling that the friction of the skin is low (smooth feeling) when rubbing the skin. From the viewpoint of imparting an excellent smooth feeling to the skin, it is preferable to use spherical silica which is excellent in reducing frictional resistance to the skin, and it is more preferable to use spherical silica.

The oil absorption amount of the component (A) is not particularly limited, but is preferably 20 to 300 ml / 100 g, and more preferably 20 to 120 ml / 100 g. The average particle size D50 of the component (A) is not particularly limited, but is preferably 1 to 15 μm. When D50 is 1 μm or more, the smooth feeling is more excellent. The oil absorption amount of the component (A) in the present specification is a value measured according to the measuring method described in JIS K5101. Further, the average particle size D50 of silica in the present specification is a value measured by a laser diffraction method.

The content of the component (A) in the cosmetic composition of the present invention is 0.5 to 15.0% by mass, preferably 1.0 to 15.0% by mass, based on 100% by mass of the cosmetic composition of the present invention. It is 12.0% by mass, more preferably 2.0 to 10.0% by mass. When the content is 0.5% by mass or more, the frictional resistance to the skin can be reduced and the skin can be given a smooth feeling. When the content is 15.0% by mass or less, whitening can be suppressed. Moreover, the sedimentation of silica can be further suppressed. Further, it is possible to suppress a squeaky feeling and a dry feeling at the time of use. The content of the above component (A) is the total content of all the components (A) in the cosmetic composition of the present invention.

(Component (B): cationized polymer)
Examples of the cationized polymer as the component (B) include polymer compounds having a nitrogen atom-containing group exhibiting cationic properties. By blending the above component (B) in the cosmetic composition, the sheet cosmetic of the present invention can suppress the precipitation of silica, further suppress the whitening, and a plurality of sheets are laminated and stored. The difference in usability between the top and bottom becomes smaller when used later. Examples of the component (B) include cationized cellulose, cationized starch, cationized guar gum, polyglycol polyamine condensate, derivatives thereof, and other monomers having a nitrogen atom-containing group exhibiting cationic properties. Examples thereof include polymers containing the derived structural unit.

Examples of the monomer having a nitrogen atom-containing group exhibiting cationic properties include dialkyldialylammonium salts such as dialkyldiallylammonium chloride, quaternized vinylpyrrolidone, vinylimidazolium trichloride, and quaternized dimethylaminoethyl methacrylate. Examples thereof include methacrylamide propyl trimethylammonium chloride. Of these, a dialkyldialylammonium salt (particularly, dialkyldialylammonium chloride) is preferable, and a dimethyldiallylammonium salt (particularly, dimethyldiallylammonium chloride) is more preferable.

Examples of the polymer containing a structural unit derived from a monomer having a cationic nitrogen atom-containing group include a dialkyldialyl ammonium salt / acrylamide copolymer, a vinyl imidazolium trichloride / vinylpyrrolidone copolymer, and a hydroxyethyl cellulose. -Dimethyldialylammonium chloride copolymer, vinylpyrrolidone-quaternized dimethylaminoethylmethacrylate copolymer, polyvinylpyrrolidone-alkylaminoacrylate copolymer, polyvinylpyrrolidone-alkylaminoacrylate-vinylcaprolactam copolymer, vinylpyrrolidone-methacryl Examples thereof include amidopropyl trimethylammonium chloride copolymer, alkylacrylamide, acrylate, alkylaminoalkylacrylamide, polyethylene glycol methacrylate copolymer and the like.

As the component (B), a polymer formed with dimethyldiallylammonium chloride (dimethyldialylammonium chloride) as an essential monomer component is preferable from the viewpoint of further suppressing the precipitation of silica. That is, the component (B) is preferably a polymer containing a structural unit derived from dimethyldiallyl ammonium chloride.

The polymer formed by using the above-mentioned dimethyldiallylammonium chloride as an essential monomer component (hereinafter, may be referred to as “component (B1)”) may be a homopolymer of dimethyldiallylammonium chloride or dimethyl chloride. It may be a copolymer of diallyl ammonium and a monomer component other than dimethyl diallyl ammonium chloride.

The monomer component other than the above-mentioned dimethyldiallylammonium chloride is not particularly limited, and examples thereof include acrylic acid and acrylamide. That is, the component (B1) may be a copolymer further containing a structural unit derived from acrylic acid and / or a structural unit derived from acrylamide.

When the above component (B1) is a copolymer of dimethyldiallylammonium chloride and a monomer component other than dimethyldiallylammonium chloride, dimethyldialylammonium chloride and dimethyldialylammonium chloride in all the monomer components forming the component (B1) The molar ratio with the monomer component other than [(dimethyldiallylammonium chloride) / (monomer component other than dimethyldiallylammonium chloride)] is not particularly limited, but is, for example, 1.0 / 0.3 to 1.0 / 4. 0 is preferable, more preferably 1.0 / 0.4 to 1.0 / 3.5, still more preferably 1.0 / 0.5 to 1.0 / 3.0.

The weight average molecular weight of the component (B1) is not particularly limited, but is preferably 1.0 × 10 ^{4 to} 1.0 × 10 ⁷ , and more preferably 5.0 × 10 ^{4 to} 8.0 × 10 ^6. , More preferably 8.0 × 10 ^{4 to} 6.0 × 10 ⁶ . The weight average molecular weight can be measured by, for example, GPC using polystyrene as a standard substance.

The component (B1) is not particularly limited, but has an INCI name (International Cosmetic Compound Dictionary and Handbook, 16th edition, 2nd volume, 2016, p.2900-2908) and is "POLYQUATERNIUM" (polyquaternium). The compound described as "POLYQUATERNIUM (polyquaternium) -7", the compound described as "POLYQUATERNIUM (polyquaternium) -22", and the compound described as "POLYQUATERNIUM (polyquaternium) -39" are preferable.

Among them, the component (B1) is a copolymer selected from the group consisting of a dimethyldiallylammonium chloride / acrylamide copolymer (polyquaternium-7) and a dimethyldialylammonium chloride / acrylic acid copolymer (polyquaternium-22). Coalescence is preferred.

Examples of the component (B) other than the above component (B1) include the INCI name (International Nomenclature Organic Dictionary and Handbook, 16th edition, Volume 2, 2016, p. 290-2903), and "POLYQUATERNIUM (polyquaternium). Examples thereof include a compound described as "-11" and a compound described as "POLYQUATERNIUM (polyquaternium) -10".

A commercially available product can also be used for the above component (B). The commercial product of the above component (B1) is not particularly limited, but for example, the trade name "Marcoat 550PR" (manufactured by NALCO, polyquaternium-7, a copolymer of dimethyldialyl ammonium chloride and acrylamide), and the trade name "Marcoat". S ”(NALCO, Polyquaternium-7, copolymer of dimethyldialyl ammonium chloride and acrylamide), trade name“ Marcourt 2200 ”(NALCO, Polyquaternium-7, copolymer of dimethyldialylammonium chloride and acrylamide) ), Product name "Marcoat 740" (NALCO, Polyquaternium-7, copolymer of dimethyldiallylammonium chloride and acrylamide), Product name "Marcoat PLUS3330" (NALCO, Polyquaternium-39, Dimethyldialylammonium chloride) (Copolymer of acrylic acid and acrylic acid amide), trade name "Marcoat 280" (manufactured by NALCO, polyquaternium-22, copolymer of dimethyldialyl ammonium chloride and acrylic acid), trade name "Marcoat 281" (NALCO) Polyquaternium-22, a copolymer of dimethyldialyl ammonium chloride and acrylic acid), trade name "Marcoat 295" (NALCO, polyquaternium-22, a copolymer of dimethyldialylammonium chloride and acrylic acid), Product name "Marcoat 100" (Polyquaternium-6 manufactured by NALCO, polymer of dimethyldialylammonium chloride), trade name "Marcoat 106" (Polyquaternium-6 manufactured by NALCO, polymer of dimethyldialylammonium chloride), etc. Be done. Examples of commercially available products of the other component (B) include the product name "Markor 10" (manufactured by NALCO, polyquaternium-10, cationized cellulose) and the product name "Poise C-150L" (manufactured by Kao Corporation, chloride). О- [2-Hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose) and the like can be mentioned.

The content of the component (B) in the cosmetic composition of the present invention is 0.0005% by mass or more and less than 0.1% by mass, preferably 0, based on 100% by mass of the cosmetic composition of the present invention. It is 0008 to 0.08% by mass, more preferably 0.002 to 0.06% by mass, still more preferably 0.002 to 0.01% by mass. When the content is 0.0005% by mass or more, the precipitation of silica can be suppressed, the whitening is suppressed, and the feeling of use between the upper and lower parts when used after laminating and storing a plurality of sheets. The difference between can be reduced. When the content is less than 0.1% by mass, it is possible to prevent the skin from becoming sticky after use. The content of the above component (B) is the total content of all the components (B) in the cosmetic composition of the present invention.

(Component (C): water)
The water as the component (C) is not particularly limited, but purified water is preferably used. The content of the component (C) in the cosmetic composition of the present invention is not particularly limited with respect to 100% by mass of the cosmetic composition of the present invention, but is preferably 20.0 to 85.0% by mass, more preferably. It is preferably 30.0 to 70.0% by mass.

The content of the cationic surfactant in the cosmetic composition of the present invention is less than 0.01% by mass (for example, 0% by mass or more and 0.01% by mass) with respect to 100% by mass of the cosmetic composition of the present invention. %), preferably less than 0.005% by mass, more preferably less than 0.001% by mass. When the content is less than 0.01% by mass, the content of the cationic surfactant which is presumed to inhibit silica from forming flocs (aggregates) with the cationized polymer is sufficiently low. Therefore, silica is less likely to settle. The content of the above-mentioned cationic surfactant is the sum of the contents of all the cationic surfactants in the cosmetic composition of the present invention.

Examples of the cationic surfactant include known and commonly used cationic surfactants, for example, amine salts such as alkylamine salts, fatty acid amidamine salts, and ester-containing tertiary amine salts; monoalkyl type quaternary. Alkyl quaternary ammonium salts such as ammonium salts, dialkyl quaternary ammonium salts, trialkyl quaternary ammonium salts, benzalconium quaternary ammonium salts; cyclic quaternary ammonium salts such as alkyl pyridinium salts. Benzethonium chloride and the like can be mentioned.

Examples of the amine salt include myristic acid dimethylaminoethylamide, myristic acid dimethylaminopropylamide, myristic acid diethylaminoethylamide, myristic acid diethylaminopropylamide, palmitate dimethylaminoethylamide, palmitate dimethylaminopropylamide, and palmitic acid. Diethylaminoethylamide, diethylaminopropylamide palmitate, dimethylaminoethylamide stearate, dimethylaminopropylamide stearate, diethylaminoethylamide stearate, diethylaminopropylamide stearate, dipropylaminoethyl stearate, dipropylaminopropyl stearate Examples thereof include amides, behenic acid dimethylaminoethylamide, behenic acid dimethylaminopropylamide, behenic acid diethylaminoethylamide, and behenic acid diethylaminopropylamide.

Examples of the alkyl quaternary ammonium salt include polyoxypropylene methyl diethylammonium chloride, dipolyoxyethylene oleylmethylammonium chloride, cetyltrimethylammonium chloride, dicoconut oil alkyldimethylammonium chloride, octadecyloxypropyltrimethylammonium chloride, and chloride. Examples thereof include γ-gluconamide propyldimethylhydroxyethylammonium and benzalkonium chloride. Examples of the cyclic quaternary ammonium salt include cetylpyridinium chloride and the like.

The content of the nonionic surfactant in the cosmetic composition of the present invention is less than 0.2% by mass (for example, 0% by mass or more and 0.2% by mass) with respect to 100% by mass of the cosmetic composition of the present invention. %), Preferably less than 0.1% by mass, more preferably less than 0.05% by mass. When the content is less than 0.2% by mass, the content of the nonionic surfactant, which is presumed to inhibit silica from forming flocs (aggregates) with the cationized polymer, is sufficiently low. Therefore, silica is less likely to settle. The content of the nonionic surfactant is the sum of the contents of all the nonionic surfactants in the cosmetic composition of the present invention.

Examples of the nonionic surfactant include known and conventional nonionic surfactants, for example, sorbitan fatty acid ester, glycerin fatty acid ester, and alkylene oxide adducts thereof, polyglycerin fatty acid ester, polyoxyalkylene alkyl ether. , Polyoxyalkylene fatty acid ester, polyoxyalkylene alkylphenol, polyoxyethylene sorbit fatty acid ester, polyoxyethylene alkylphenyl formaldehyde condensate, polyoxyethylene sterol and its derivatives, polyoxyethylene lanolin and its derivatives, polyoxyethylene honey wax derivatives, Examples include sugar esters.

The cosmetic composition of the present invention may contain components (other components) other than the above components (A) to (C). Other components are not particularly limited, but are, for example, ultraviolet absorbers, powders other than silica, lower alcohols, ester oils, polyhydric alcohols, antioxidants, preservatives, fragrances, colorants, chelating agents, and refreshing agents. , Thickeners, plant extracts, vitamins, neutralizers, amino acids, pH adjusters, whitening agents, anti-inflammatory agents, bactericides, antiperspirants, deodorants and the like.

The cosmetic composition of the present invention preferably contains talc as a powder other than the silica. When talc is contained, the sheet cosmetic of the present invention can impart an excellent smooth feeling to the skin in addition to a smooth feeling. The smooth feeling refers to a smooth touch (feel with less unevenness) that is felt when rubbing the skin. The talc is not particularly limited, and talc generally used in cosmetic compositions can be used. From the viewpoint of imparting an excellent smooth feeling to the skin, it is preferable to use a flat plate-shaped talc that adheres to the skin to cover the unevenness of the skin and imparts a smooth feel.

The oil absorption of the talc is not particularly limited, but is preferably 18 to 50 ml / 100 g. The average particle size D50 of the talc is not particularly limited, but is preferably 0.5 to 25 μm. The oil absorption amount of talc in the present specification is a value measured according to the measuring method described in JIS K5101. Further, the average particle size D50 of talc in the present specification is a value measured by a laser diffraction method.

When the cosmetic composition of the present invention contains talc, the content of talc in the cosmetic composition of the present invention is not particularly limited, but is 0. It is preferably 5 to 15.0% by mass, more preferably 1.0 to 12.0% by mass. When the content is 0.5% by mass or more, a smooth and smooth feeling can be further imparted to the skin. When the content is 15.0% by mass or less, whitening can be further suppressed. The talc content is the sum of the contents of all talc in the cosmetic composition of the present invention.

The cosmetic composition of the present invention preferably contains an alcohol having 1 to 4 carbon atoms as the lower alcohol from the viewpoint of being able to impart quick-drying properties and a refreshing feeling of use. Examples of the alcohol having 1 to 4 carbon atoms include linear or branched aliphatic alcohols having 1 to 4 carbon atoms, and are not particularly limited, and examples thereof include ethanol, propanol, and isopropanol. Of these, ethanol is preferable.

When the cosmetic composition of the present invention contains a lower alcohol, the content of the lower alcohol (particularly, an alcohol having 1 to 4 carbon atoms) in the cosmetic composition of the present invention is not particularly limited, but the content of the present invention is not particularly limited. It is preferably 20.0 to 65.0% by mass, more preferably 30.0 to 60.0% by mass, based on 100% by mass of the cosmetic composition. When the content is 20.0% by mass or more, the quick-drying property is excellent, so that a refreshing feeling of use can be imparted and a smooth feeling can be further improved. When the content is 65.0% by mass or less, it is possible to prevent the oil and water on the skin from being wiped off more than necessary, and to suppress a feeling of tightness. The content of the lower alcohol is the sum of the contents of all the lower alcohols in the cosmetic composition of the present invention. In particular, it is preferable that the ethanol content is within the above range.

The cosmetic composition of the present invention preferably contains, as the ester oil, one or more ester oils selected from the group consisting of diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, and ethyl oleate. Since the ester oil has a small molecular weight and easily volatilizes, a sticky feeling is less likely to remain after use. Further, when the talc and the lower alcohol are used, the smoothness can be further improved and the smooth feeling due to the lower alcohol can be alleviated by further containing the ester oil. The ester oil is preferably diisopropyl adipate.

When the cosmetic composition of the present invention contains the above ester oil (one or more ester oils selected from the group consisting of diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, and ethyl oleate), the cosmetic composition of the present invention The content of the ester oil in the composition is not particularly limited, but is preferably 0.1 to 2.0% by mass, more preferably 0.25, based on 100% by mass of the cosmetic composition of the present invention. ~ 1.5% by mass. When the content is 0.1% by mass or more, the skin becomes slippery when used together with talc and the smoothness can be further improved, and when used in combination with the lower alcohol, the lower alcohol makes the skin smooth. The feeling can be alleviated. In addition, it is possible to further suppress whitening on the skin due to powder. When the content is 2.0% by mass or less, the sticky feeling can be further suppressed. The content of the ester oil is the total content of diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, and ethyl oleate in the cosmetic composition of the present invention. In particular, the content of diisopropyl adipate is preferably within the above range.

The content of the anionic surfactant in the cosmetic composition of the present invention is not particularly limited, but is less than 0.2% by mass (for example, 0% by mass) with respect to 100% by mass of the cosmetic composition of the present invention. More than 0.2% by mass), more preferably less than 0.1% by mass, still more preferably less than 0.05% by mass. If the content is less than 0.2% by mass, the content of the anionic surfactant that may inhibit the silica from forming flocs with the cationized polymer is sufficiently low, so that the silica precipitates. It is thought that it will be less likely to occur. The content of the anionic surfactant is the sum of the contents of all the anionic surfactants in the cosmetic composition of the present invention.

Examples of the anionic surfactant include known and commonly used anionic surfactants, and examples thereof include higher fatty acid soaps, alkyl sulfates, alkyl phosphates, polyoxyethylene alkyl ether sulfates, and polyoxyethylene alkyls. Phenyl ether sulfate, alkyl ether phosphate, alkyl ether carboxylate, acyl methyl taurine salt, N-acyl-N-methyl-β-alanine salt, N-acyl glycine salt, N-acyl glutamate, polyoxyethylene Examples thereof include alkyl carboxylate, alkyl phenyl ether sulfonate, alkyl sulfosuccinic acid and salts thereof, N-acylsarcosine and salts thereof, polyoxyethylene palm oil fatty acid monoethanolamide sulfate and the like.

The content of the powder in the cosmetic composition of the present invention is not particularly limited, but is preferably 1.0 to 20.0% by mass, more preferably 1.0 to 20.0% by mass, based on 100% by mass of the cosmetic composition of the present invention. It is 2.0 to 17.0% by mass. When the content is 1.0% by mass or more, the frictional resistance to the skin can be reduced to give the skin a smoother feeling. When the content is 20.0% by mass or less, the squeaky feeling, the dry feeling and the whitening can be further suppressed. The content of the above powder is the total content of all the powders (silica, powder, etc.) in the cosmetic composition of the present invention.

The content of the surfactant in the cosmetic composition of the present invention is not particularly limited, but is less than 0.2% by mass (for example, 0% by mass or more and 0) with respect to 100% by mass of the cosmetic composition of the present invention. .2% by mass) is preferable, and more preferably less than 0.1% by mass. If the content is less than 0.2% by weight, the content of the surfactant that may prevent silica from forming flocs with the cationized polymer is sufficiently low, so that silica precipitation occurs more. It will be difficult. The content of the above-mentioned surfactant is the content of all the surfactants (cationic surfactant, nonionic surfactant, anionic surfactant, amphoteric surfactant, etc.) in the cosmetic composition of the present invention. The total amount.

The cosmetic composition of the present invention can be produced by a conventional method. For example, a method of mixing each of the above components and a method of making each component uniform by a known method, specifically, a method of stirring with a paddle mixer or the like can be mentioned.

<Non-woven fabric>
The non-woven fabric in the sheet cosmetics of the present invention is a sheet-like support that can be impregnated with the cosmetic composition of the present invention, and plays the role of a so-called sheet base material in the sheet cosmetics of the present invention.

The non-woven fabric is not particularly limited, and examples thereof include spunbonded non-woven fabrics, spunlaced non-woven fabrics, thermal-bonded non-woven fabrics, needle-punched non-woven fabrics, and stitch-bonded non-woven fabrics. Of these, spunbonded non-woven fabric is preferable.

The fibers constituting the non-woven fabric are not particularly limited, and examples thereof include natural fibers, synthetic fibers, and semi-natural fibers. Examples of the natural fiber include cotton, pulp, silk, cellulose, hemp, linter, and cabock. Examples of the synthetic fiber include nylon fiber, polyester fiber (for example, polyethylene terephthalate fiber, polybutylene terephthalate fiber, etc.), acrylic fiber, polyolefin fiber (for example, polypropylene fiber, polyethylene fiber, etc.) and the like. Examples of the semi-natural fiber include rayon and acetate. Only one type of the fiber may be used, or two or more types may be used. Further, a blended fiber composed of two or more kinds of the above fibers may be used.

Cellulose is particularly preferable as the fiber constituting the non-woven fabric. That is, it is preferable that the non-woven fabric contains cellulose fibers as an essential component. The cellulose fiber refers to a fiber containing cellulose as a main component, and is, for example, a natural cellulose fiber made from plant fibers such as cotton, pulp, hemp, linter, and capoc; using plant cellulose such as rayon and acetate. Examples thereof include prepared semi-natural cellulose fibers. Of these, natural cellulose fibers are preferable, and pulp is particularly preferable. Only one type of the cellulose fiber may be used, or two or more types may be used. Further, a blended fiber composed of two or more kinds of the above-mentioned cellulose fibers may be used. The non-woven fabric containing the cellulose fibers may contain components other than the cellulose fibers. However, since the synthetic fiber is hard, the non-woven fabric containing the synthetic fiber does not feel good on the skin and is inferior in usability. Therefore, it is preferable not to contain the non-woven fabric containing the cellulose fiber.

The content of the cellulose fibers in the non-woven fabric is not particularly limited, but is preferably 95% by mass or more (for example, 95 to 100% by mass), more preferably 98% by mass or more, and further, with respect to 100% by mass of the non-woven fabric. It is preferably 100% by mass. When the content is 95% by mass or more, the skin feels soft and the feeling of use is excellent.

The non-woven fabric may be embossed. The embossing process is not particularly limited, and for example, a method of pushing up the back surface to float (therefore the back surface is dented) or a method of forming a convex portion by adhering a special ink to the front surface (the back surface is not dented). And so on.

The basis weight of the non-woven fabric is not particularly limited, but is preferably 30 to 100 g / m ² . When the basis weight is within the above range, the non-woven fabric does not curl when the skin is wiped, and the feeling of use is excellent. In addition, the impregnation amount of the cosmetic composition per unit area of the sheet cosmetic is increased. As a result, the amount of powder such as silica adhering to the skin increases, so that the smoothness and smoothness of the skin after use are further improved. Further, a sufficient effect can be obtained even when it is used over a wide range of skin, and it is particularly preferable because its usability is further improved when it is used as a sheet cosmetic for a body.

A non-woven fabric having a basis weight of 30 to 100 g / m ² and containing cellulose fibers can be produced by a known and commonly used production method. Further, as such a non-woven fabric, a commercially available product can also be used. Examples of commercially available products include the product name "TCF404WJ", the product name "TCF407SWJ", the product name "TCF406", the product name "TCF408", the product name "TCF208", and the product name "TCF516" (above, Futamura Chemical Co., Ltd.). , Product name "Claflex JP0451B070", product name "Claflex JP2760B084" (above, manufactured by Kuraray Co., Ltd.), product name "MI-30-2PE" (manufactured by Ino Paper Co., Ltd.) and the like.

<Sheet cosmetics>
The mass ratio of the cosmetic composition of the present invention impregnated with respect to the non-woven fabric in the sheet cosmetic of the present invention is not particularly limited, but the cosmetic composition of the present invention is 200 to 200 to 100 parts by mass of the nonwoven fabric. It is preferably 500 parts by mass, more preferably 300 to 450 parts by mass.

The shape of the sheet cosmetic of the present invention is sheet-like. As a result, it is excellent in usability in the form of wiping the skin and also excellent in portability. The planar shape of the sheet is not particularly limited, but for example, a quadrangle (for example, a square, a rectangle, etc.), a polygon such as a triangle; a circle, an ellipse, a semicircle; a crescent shape; a barrel shape; a drum shape; a character shape, etc. Can be mentioned. Above all, a quadrangle is preferable from the viewpoint of productivity, usability and packing property. The sheet cosmetic of the present invention may be molded with notches, hollows, irregularities and the like. The surface area of one side of the sheet of the sheet cosmetic of the present invention is not particularly limited, but is preferably 100 to 500 cm ² from the viewpoint of usability, portability, packaging, and the like.

The sheet cosmetic of the present invention is preferably stored in a packaging container from the viewpoints of preventing drying, portability when going out, handleability when using, and the like. The sheet cosmetics of the present invention may be individually packaged individually, or even if a plurality of sheet cosmetics of the present invention are stored in the same packaging container from the viewpoint of production cost, production efficiency, etc. Good. The number of sheet cosmetics of the present invention stored in one packaging container is not particularly limited, but is preferably 2 to 50 sheets (1/1 packaging container). In particular, since the difference in usability between the upper and lower sheets is small when a plurality of sheet cosmetics of the present invention are used after being laminated and stored, 10 sheets (1/1 packaging container) or more (particularly 25 sheets (/ 1 packaging container)). ) And above). The sheet cosmetic of the present invention is preferably folded in half, folded in three, folded in four, or the like and stored in a packaging container.

Examples of the packaging container include a bag body (packaging bag), a box-shaped container, and the like. The packaging container is preferably one capable of suppressing volatilization of the cosmetic composition of the present invention. The material of the packaging container is not particularly limited, and examples thereof include resins such as polyethylene terephthalate (PET), polyethylene (PE), and polypropylene (PP); and metals such as aluminum. As the packaging container, a resin packaging container (particularly, a packaging bag) in which a metal layer is laminated or vapor-deposited on the surface is preferable, and aluminum vapor deposition is more preferable on the surface, from the viewpoint of being lightweight and having an excellent anti-volatile effect. It is a packaging bag made of resin.

The sheet cosmetic of the present invention can be produced by impregnating a non-woven fabric with the cosmetic composition of the present invention. The method of impregnating the non-woven fabric with the cosmetic composition of the present invention is not particularly limited, and for example, a method of injecting and impregnating the non-woven fabric of the present invention with the non-woven fabric in a folded state, the non-woven fabric of the present invention Examples thereof include a method of spraying the composition, a method of impregnating the non-woven fabric with the cosmetic composition of the present invention using a printing method, a method of immersing the non-woven fabric in the cosmetic composition of the present invention, and the like.

The sheet cosmetic of the present invention is mainly used for wiping the skin (skin). The part to be wiped off by the sheet cosmetic of the present invention is not particularly limited, and for example, the face (for example, forehead, eyes, eyes, cheeks, mouth, etc.), arms, elbows, back of hands, fingertips, feet, knees, heels, etc. Neck, armpits, back, etc. Examples of the sheet cosmetic of the present invention include a sheet face wash (face wash sheet), a body wipe sheet, a wet tissue, a disposable hand towel, a butt wipe sheet, a makeup remover sheet and the like. Among them, the sheet cosmetic of the present invention is particularly preferably used for wiping the body because it has less whitening and can give a smooth feeling to the skin after use. The sheet cosmetics of the present invention may be, for example, cosmetics, quasi-drugs, pharmaceuticals, or miscellaneous goods.

The method of using the sheet cosmetic of the present invention is not particularly limited, and examples thereof include a method of wiping off dirt on the skin, old keratin, sebum and the like. The sheet cosmetic of the present invention not only wipes off stains and the like, but also has less whitening and can give the skin a sufficient smooth feeling by simply wiping it on the skin. It is preferable to use a wiping sheet cosmetic to be used.

The sheet cosmetic of the present invention has less whitening and can give a smooth feeling to the skin after use, so that it is on the skin such as the face and body rather than as a cleansing sheet cosmetic whose main purpose is to remove makeup. It is more preferably used as a skin cleansing sheet cosmetic whose main purpose is to wipe off sweat, sebum stains, old keratin, etc., suppress stickiness, and give a refreshing feeling of use. Conventionally, as sheet cosmetics mainly for the body, those having a strong smooth feeling (feeling of low skin friction felt when rubbing the skin) have been generally used in consideration of the feeling of use in summer. However, female users and the like have complained about such sheet cosmetics that their skin feels strong, dry and dry. The present invention can solve such a problem, and in addition to a smooth feeling, gives a refreshing feeling and a smooth touch feeling (feeling with less unevenness) when rubbing the skin, that is, a smooth feeling. It becomes possible. Therefore, it is particularly preferably used as a sheet cosmetic for women, which has a strong tendency to demand a refreshing feeling and a smooth feeling on the skin in addition to a smooth feeling.

The sheet cosmetic of the present invention is a non-woven fabric impregnated with a cosmetic composition containing a specific amount of silica [ingredient (A)], so that the skin is wiped off to reduce whitening, and after use. Gives the skin a smooth feel. In the sheet cosmetics containing a relatively large amount of silica (particularly spherical silica), silica may settle during storage, but in the sheet cosmetics of the present invention, a specific amount is specified in the cosmetic composition. It is presumed that by blending the cationized polymer [component (C)] of the above, it becomes difficult to form flocs (aggregates) between the silica and the cationized polymer and pass through the non-woven fabric, and the precipitation of silica is suppressed. doing. This cationized polymer is generally known to cause "sliminess" and "stickiness". However, as in the sheet cosmetics of the present invention, silica can be obtained by using a specific amount of the cationized polymer. There are no known examples of using the function of preventing sedimentation. In addition, since cationic surfactants and nonionic surfactants may inhibit the formation of such flocs, the formation of flocs is promoted by controlling their contents to less than a specific amount. .. As a result, in the sheet cosmetic of the present invention, silica does not easily settle even when a plurality of sheets are laminated. Therefore, even when a plurality of sheets are stored in a packaging container, the sheet cosmetic to be used first after opening the package. Silica is sufficiently contained in the material, and the above-mentioned smoothness and smoothness can be sufficiently felt. In addition, the sheet cosmetics remaining at the end of the packaging container have the same silica content as the sheet cosmetics used first after opening, so they have the same smoothness as the sheet cosmetics used first after opening. You can feel a smooth feeling, and whitening is unlikely to occur.

Further, when lower alcohol is used, a refreshing feeling is given, and when talc is used, a smooth feeling is given while maintaining the effect that whitening is less likely to occur and silica is less likely to settle even when a plurality of sheets are laminated. Can be done.

Hereinafter, the present invention will be described in more detail based on Examples, but the present invention is not limited to these Examples. The blending amount shown in the table is the blending amount of each component (that is, the blending amount of the active ingredient in each raw material), and represents "mass%" unless otherwise specified, and all of them are pure (that is, each component). It is an amount converted into (content). In addition, "-" in the blending amount in the table indicates that the component is not blended. In addition, Examples 6 and 12 are described as reference examples.

Examples 1-12, Comparative Examples 1-6
(Making sheet cosmetics)
The cosmetic compositions of Examples and Comparative Examples were prepared by a conventional method according to the compositions shown in Tables 1 and 2. Further, the above-mentioned cosmetic composition is applied to a non-woven fabric of 100% by mass of pulp (cellulose fiber) (spun-bonded non-woven fabric, with embossing treatment, texture: 80 g / m ² ), and the cosmetic composition is applied to 100 parts by mass of the non-woven fabric. By impregnating with a mass ratio of 400 parts by mass, each sheet cosmetic (sheet size: 10 cm × 15 cm, rectangular) of Examples and Comparative Examples was prepared.

Details of each component shown in Tables 1 and 2 are as follows.
<Ingredient (A)>
Silicate anhydride: trade name "SILICA PEARL 20CG", manufactured by JGC Catalysts and Chemicals Co., Ltd., spherical silica <component (B)>
Polyquaternium-7: Trade name "Markor 550PR", manufactured by NALCO, dimethyldiallylammonium chloride / acrylamide copolymer solution (8.5% by mass)
Polyquaternium-11: Trade name "HC Polymer 1N (M)", manufactured by Osaka Organic Chemical Industry Co., Ltd., N-vinylpyrrolidone / N-dimethylaminoethyl methacrylate copolymer solution (20% by mass)
Polyquaternium-10: Trade name "Catinal HC-200", manufactured by Toho Chemical Industry Co., Ltd., cationized cellulose <cationic surfactant>
Benzalkonium chloride: Product name "Sanisol B-50", manufactured by Kao Corporation, benzalkonium chloride (50% by mass)
<Nonionic surfactant>
PPG-6 decyltetradeceth-20: trade name "PEN-4620", manufactured by Nippon Surfant Industry Co., Ltd. <Other ingredients>
Talc: Product name "Talc MS", manufactured by Japan Talc Co., Ltd., flat plate

(Evaluation)
With each sheet of cosmetics obtained in Examples and Comparative Examples, the inside of one forearm was wiped back and forth 5 times, and after the cosmetic composition of the wiped portion was dried, there was no whitening, a smooth feeling, and a sticky feeling. Was evaluated. The above evaluation was carried out under constant temperature and humidity conditions of 25 ° C. and 50% humidity RH. Judgment was made according to the following evaluation criteria, and the results are shown in Tables 1 and 2.

<Evaluation criteria for no whitening>
◎ (Excellent): There is no whitening on the skin after use.
○ (Good): Slight whitening occurs on the skin after use, but it can be used.
× (defective): Whitening is noticeable on the skin after use.

<Evaluation criteria for smooth feeling>
◎ (Excellent): Feels smooth enough on the skin after use.
○ (Good): Inferior to ◎, but the skin feels smooth after use.
× (defective): No smooth feeling on the skin after use. Or, I feel dry.

<Evaluation criteria for stickiness>
◎ (excellent): I do not feel sticky.
○ (Good): Slightly sticky, but usable.
× (defective): A feeling of stickiness is noticeably felt.

For each sheet of cosmetics obtained in Examples and Comparative Examples, both ends in the longitudinal direction are folded at a portion having a length of a quarter in the longitudinal direction from both ends, and both ends are in the center in the longitudinal direction. Thirty pieces of those folded in three (also referred to as "double-sided folding" or "open Kannon folding") were laminated inward so as to be in contact with each other, and packed in a resin packaging bag with aluminum vapor deposition on the inner surface. This was loaded on a truck and transferred back and forth between Tokyo and Osaka, and then the sedimentation property of the powder in the non-woven fabric and the difference in usability between the upper and lower layers after storage of the sheet cosmetic laminate were evaluated. .. The above evaluation was carried out under constant temperature and humidity conditions of 25 ° C. and 50% humidity RH. The results are shown in Tables 1 and 2.

<Evaluation criteria for powder sedimentation in non-woven fabric>
After the transfer, the packaging bag was opened, the laminate of sheet cosmetics was removed, and the state of powder adhesion to the inside of the packaging bag was visually confirmed and evaluated according to the following criteria. The inside of the packaging bag for which the adhered state has been confirmed is the lower side of the laminated sheet cosmetics and the lower side in the laminating direction.
⊚ (excellent): Little or no white residue of the powder was observed.
○ (Good): A slight amount of white residue of the powder was observed, but it can be used.
X (defective): White residue of the powder was noticeably observed.

<Difference in usability between top and bottom>
Among the laminates of sheet cosmetics taken out from the packaging bag after transfer, the top sheet cosmetics and the bottom sheet cosmetics were used, respectively, and the same evaluation as the above-mentioned smooth feeling was performed. Then, the smooth feeling after drying was compared and evaluated according to the following criteria.
◎ (excellent): No difference between the top and bottom.
○ (Good): There is a slight difference between the top and bottom, but it can be used.
× (defective): The difference between the top and bottom is noticeable.

From the results of Tables 1 and 2, each example was a sheet cosmetic that could give a smooth feeling to the skin after use by wiping the skin, and there was little whitening. Further, it was a sheet cosmetic that could give a refreshing feeling of use and a smooth feeling after wiping. In addition, after 30 sheets of sheet cosmetics were laminated and transferred, no sedimentation of silica was observed, and no difference in usability between the upper and lower sheets after storage was observed. On the other hand, it can be seen that each comparative example that does not satisfy the configuration of the present invention cannot sufficiently exert the effect of the present invention.

Claims (6)

A sheet cosmetic containing a non-woven fabric and a cosmetic composition impregnated in the non-woven fabric.
The cosmetic composition contains the following component (A), the following component (B), and the following component (C), and the content of the component (A) in the cosmetic composition is 0.5 to 15% by mass. %, The content of the component (B) is 0.0005% by mass or more and 0.01% by mass or less .
A sheet cosmetic characterized in that the content of the cationic surfactant in the cosmetic composition is less than 0.01% by mass and the content of the nonionic surfactant is less than 0.05 % by mass.
Component (A): Silica Component (B): Cationic polymer Component (C): Water The sheet cosmetic according to claim 1, wherein the sheet cosmetic using a sheet-like base material in which a fiber layer containing a cellulosic fiber and a hydrophobic fiber is laminated on one surface or both sides of a wet nonwoven fabric containing a pulp fiber is excluded. .. The sheet cosmetic according to claim 1 or 2, wherein the component (B) is a polymer containing a structural unit derived from dimethyldiallyl ammonium chloride. The sheet cosmetic according to any one of claims 1 to 3, wherein the content of the alcohol having 1 to 4 carbon atoms in the cosmetic composition is 20 to 65% by mass. The sheet cosmetic according to any one of claims 1 to 4, wherein the cosmetic composition further contains talc. The one according to any one of claims 1 to 5, wherein the cosmetic composition contains one or more ester oils selected from the group consisting of diisopropyl adipate, diisobutyl adipate, diisopropyl sebacate, and ethyl oleate. Sheet cosmetics.