JP2022134968A - Sheet cosmetic for cleansing - Google Patents

Abstract

To provide a sheet cosmetic that shows high cleansing power during its use but saves the user from having to prepare every time the same is used.SOLUTION: A sheet cosmetic for cleansing has a sheet substrate, a water-based composition and an oil-based composition. At least one region of the sheet substrate is impregnated with the water-based composition while another at least one region of the sheet substrate is impregnated with the oil-based composition. The water-based composition contains the following components (A), (B), (C) and (D). The oil-based composition contains the following component (E). A mass ratio of the water-based composition to the total of the water-based composition and the oil-based composition (water-based composition/(water-based composition+oil-based composition)) is 0.40-0.80. Component (A): DL-pyrrolidonecarboxylic acid salt of N-coconut oil fatty acid acyl-L-arginine ethyl and/or benzalkonium chloride, component (B): a nonionic surfactant with an HLB vale of 8.0-12.0 and/or an acyl amino acid salt, component (C): a polyhydric alcohol, component (D): water, and component (E): an oil solution that is liquid at 25°C.SELECTED DRAWING: None

Description

TECHNICAL FIELD The present invention relates to a cleansing sheet cosmetic.

Conventionally, for cleansing (removing makeup cosmetics), a cleansing sheet in which a nonwoven fabric, cotton, etc. is impregnated with an aqueous cleansing cosmetic (lotion, etc.) has been used. There is a demand for cleansing sheets with insufficient power and higher cleansing power.

In addition, oil-in-water emulsified cleansing cosmetics are being studied in order to achieve high removal power for oil-based makeup cosmetics such as oil-based cleansing cosmetics and a refreshing feeling of use like water-based cleansing cosmetics. . However, although the oil-in-water emulsified cleansing cosmetic can improve the shortcomings of the water-based cleansing cosmetic and the oil-based cleansing cosmetic to some extent, it is not possible to sufficiently exhibit the excellent effects that are the advantages of each. There was a problem.

In order to solve such problems, a two-layer cosmetic composition consisting of two layers, a water layer and an oil layer, has been proposed as a cleansing cosmetic that has the feeling of use of an aqueous cleansing cosmetic and the high cleansing power of an oil-based cleansing cosmetic. (Patent Document 1).

Japanese Patent Application Laid-Open No. 2004-196713

However, in the two-layer cosmetic of Patent Document 1, each time it is used, it is shaken and stirred to make a uniform mixture, and then it is included in a separately prepared sheet base material such as a nonwoven fabric. Since it is necessary to wipe off the make-up cosmetic after applying, there are problems such as troublesome removal of the make-up cosmetic and poor portability.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cleansing sheet cosmetic that exhibits high cleansing power at the time of use and does not require the trouble of preparing for each use.

That is, the present invention comprises a sheet base material, an aqueous composition and an oily composition, wherein at least one region of the sheet base material is impregnated with the aqueous composition, and the oily composition is impregnated with the sheet base material. is impregnated into at least one other region, the aqueous composition contains the following component (A), the following component (B), the following component (C), and the following component (D), and the oily composition contains the following The component (E) is included, and the mass ratio of the aqueous composition to the total of the aqueous composition and the oily composition (aqueous composition/(aqueous composition + oily composition)) is 0.40 to 0.80. To provide a cleansing sheet cosmetic.
Component (A): N-Coconut fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate and/or benzalkonium chloride Component (B): Nonionic surfactant with an HLB value of 8.0 to 12.0 agent and/or acyl amino acid salt Component (C): Polyhydric alcohol Component (D): Water Component (E): Oil agent liquid at 25°C

The component (E) preferably contains silicone oil.

In the cleansing sheet cosmetic, the content of surfactants other than the component (A) and the component (B) is preferably less than 1.0% by mass.

The cleansing sheet cosmetic is preferably contained in a package.

The present invention also provides a method for producing a cleansing sheet cosmetic, comprising the step of separately impregnating the sheet base material with the aqueous composition and the oily composition.

It is preferable that the method for producing the cleansing sheet cosmetic further includes the step of storing in a package.

In the cleansing sheet cosmetic of the present invention, the aqueous composition and the oily composition are not emulsified, but are impregnated in separate regions of the sheet base material, so that the oily composition makes up the cosmetic. , and the subsequent effect of removing the oily composition by the aqueous composition becomes remarkable, realizing a high cleansing power. In addition, by preliminarily impregnating the sheet base material with the aqueous composition and the oily composition, it is possible to omit the trouble of preparing for each use. Moreover, it is excellent in portability.

[Cleansing sheet cosmetics]
The cleansing sheet cosmetic of the present invention has a sheet base material, an aqueous composition, and an oily composition. In the cleansing sheet cosmetic of the present invention, the aqueous composition is impregnated in at least one region (at least a partial region) of the sheet base material, and the oily composition is the sheet base material. is impregnated in at least one region (at least another region). That is, in the cleansing sheet cosmetic of the present invention, separate regions (different regions) of the sheet base material are impregnated with the aqueous composition and the oily composition. The number of regions impregnated with the aqueous composition and the number of regions impregnated with the oily composition may each be one, or two or more.

≪Sheet base material≫
The sheet base material according to the present invention may be any material as long as it can be impregnated with the aqueous composition and the oil-based composition according to the present invention. A woven fabric and/or a nonwoven fabric is preferable as the sheet base material. The sheet base material may be a laminate (that is, a laminate sheet), and may be, for example, a laminate of woven fabrics, a laminate of nonwoven fabrics, a laminate of woven fabrics and nonwoven fabrics, and the like. The sheet base material preferably contains a nonwoven fabric, more preferably a nonwoven fabric, from the viewpoint of excellent texture and ease of processing. Examples of the nonwoven fabric include spunbond nonwoven fabric, spunlace nonwoven fabric, thermal bonded nonwoven fabric, needle punch nonwoven fabric, stitchbond nonwoven fabric, and the like.

Examples of fibers constituting the woven fabric or non-woven fabric include natural fibers, synthetic fibers, and semi-natural fibers. Examples of the natural fibers include cotton, pulp, silk, cellulose, hemp, and linter. Examples of the synthetic fibers include nylon fibers, polyester fibers (polyethylene terephthalate fibers, polybutylene terephthalate fibers, etc.), acrylic fibers, polyolefin fibers (polypropylene fibers, polyethylene fibers, etc.). Examples of the semi-natural fibers include rayon and acetate. In order to constitute the woven fabric or the nonwoven fabric, one type of the above fibers may be used alone, or two or more types may be used in combination. Moreover, the fibers constituting the woven fabric or the nonwoven fabric may be blended fibers composed of two or more of the above fibers.

The sheet base material may be embossed. The method of the embossing treatment is not particularly limited. ) method.

Although the basis weight of the sheet base material is not particularly limited, it is preferably 20 to 300 g/m ² , more preferably 30 to 150 g/m ² from the viewpoint of excellent texture.

The sheet base material can be manufactured by a known and commonly used manufacturing method depending on the type of woven fabric, non-woven fabric, or the like. Moreover, the sheet|seat base material of this invention can also use a commercial item.

The mass ratio of the aqueous composition to the sum of the aqueous composition and the oily composition (aqueous composition/(aqueous composition+oily composition)) is 0.40 to 0.80, preferably 0.80. 50 to 0.75. By setting the above mass ratio within the above range, the removal power of the make-up cosmetic is improved, and the make-up cosmetic released from the skin is easily removed by the aqueous composition of the oily composition containing the make-up cosmetic.

<Aqueous composition>
The aqueous composition according to the present invention contains N-coconut fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate and/or benzalkonium chloride "component (A)" and an HLB value of 8.0 to 12.0. contains at least a nonionic surfactant and/or an acyl amino acid salt "component (B)", a polyhydric alcohol "component (C)" and water "component (D)".

The aqueous composition may contain components other than the components (A) to (D). In addition, for each of component (A), component (B), component (C), component (D), and other components contained in the aqueous composition of the present invention, only one type may be used, or two types may be used. The above may be used.

(Component (A))
In the cleansing sheet cosmetic of the present invention, by blending N-coconut fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate and / or benzalkonium chloride "component (A)", the aqueous composition and the oily composition become difficult to emulsify, and the cleansing power (especially the power to remove makeup cosmetics) is improved.

The N-coconut fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate is a DL-pyrrolidone carboxylate obtained by esterifying a condensation product of L-arginine and coconut oil fatty acid.

As the N-coconut oil fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate, commercially available products can be used as they are, and examples thereof include the trade name "CAE" (manufactured by Ajinomoto Co., Inc.).

The benzalkonium chloride is a compound represented by the following formula (1) obtained by thermally reacting alkyldimethylamine and benzyl chloride. In formula (1), R is an alkyl group having 12 to 14 carbon atoms.

Commercial products can be used as they are for the benzalkonium chloride. (manufactured by Toho Kagaku Kogyo Co., Ltd.) and the trade name "Cathinal MN-50A" (manufactured by Toho Chemical Industry Co., Ltd.).

The content of the component (A) in the aqueous composition is 0.001 to 1 with respect to 100% by mass of the aqueous composition, from the viewpoint that the aqueous composition and the oily composition are difficult to emulsify. 0% by mass, more preferably 0.05 to 0.5% by mass.

(Component (B))
In the cleansing sheet cosmetic of the present invention, by blending a nonionic surfactant and/or acyl amino acid salt "component (B)" having an HLB value of 8.0 to 12.0, It is possible to enhance the effect of removing the oily composition containing the liberated make-up cosmetic.

Specific examples of nonionic surfactants having an HLB value of 8.0 to 12.0 include polyoxyalkylene alkyl ethers (polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, etc.), polyglycerin Fatty acid esters, polyoxyalkylene fatty acid esters (polyoxyethylene fatty acid esters, etc.), polyoxyalkylene glycerin fatty acid esters (polyoxyethylene fatty acid glyceryls, etc.) and the like can be mentioned.

Specific examples of the polyoxyethylene alkyl ether include polyoxyethylene (4) lauryl ether, polyoxyethylene (7) cetyl ether, polyoxyethylene (7) oleyl ether, polyoxyethylene (12-14) alkyl ether and the like.

Specific examples of the polyoxyethylene polyoxypropylene alkyl ether include polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene decyl ether, and the like.

Specific examples of the polyglycerin fatty acid ester include poly(6) glyceryl myristate, poly(2) glyceryl oleate, poly(10) glyceryl oleate, poly(2) glyceryl stearate, poly(10) stearate, ) glyceryl, poly(6)glyceryl distearate, poly(6)glyceryl diisostearate, poly(10)glyceryl diisostearate, poly(10)glyceryl isostearate, and poly(10)glyceryl tristearate.

Specific examples of the polyoxyalkylene fatty acid esters include PEG-8 dilaurate, PEG-12 dilaurate, PEG-20 dilaurate, PEG-12 diisostearate dilaurate, and PEG-12 dioleate dilaurate. be done.

Specific examples of the polyoxyalkylene glycerin fatty acid ester include (caprylic/capric acid) polyoxyethylene (6) glyceryl, coconut oil fatty acid polyoxyethylene (7) glyceryl, polyoxyethylene isostearate (5) glyceryl, Polyoxyethylene (8) Glyceryl Isostearate, Polyoxyethylene (10) Glyceryl Isostearate, Polyoxyethylene (15) Glyceryl Isostearate, Polyoxyethylene (20) Glyceryl Triisostearate, Polyoxyethylene Triisostearate (30) ) glyceryl, polyoxyethylene triisostearate (40) glyceryl, polyoxyethylene diisostearate (20) glyceryl, polyoxyethylene diisostearate (30) glyceryl, polyoxyethylene trioleate (20) glyceryl, polyoxy trioleate ethylene (30) glyceryl, polyoxyethylene (40) glyceryl trioleate, etc.).

Among these, polyoxyalkylene alkyl ether is preferable, polyoxyethylene polyoxypropylene alkyl ether is more preferable, and polyoxyethylene polyoxy Propylene cetyl ether is more preferred.

Specific examples of the acyl amino acid salts include N-acylaspartates (sodium lauroyl aspartate, etc.), N-acylsarcosine salts (potassium lauroyl sarcosine, triethanolamine lauroyl sarcosine, sodium myristoyl sarcosine, sodium cocoate sarcosinate, etc.). ), N-acyl glutamate (sodium lauroyl glutamate, potassium lauroyl glutamate, triethanolamine lauroyl glutamate, sodium myristoyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, disodium stearoyl glutamate, potassium cocoyl glutamate, sodium cocoate acyl glutamate, Coconut fatty acid acylglutamic acid triethanolamine coconut oil fatty acid, hydrogenated beef tallow fatty acid sodium acylglutamate, etc.), N-acylmethylalanine salts (sodium lauroylmethylalanine, lauroylmethylalanine triethanolamine, sodium myristoylmethylalanine, coconut fatty acid methylalanine sodium, etc.), N-acylglycine salts (potassium coconut oil fatty acid acylglycinate, sodium coconut oil fatty acid acylglycinate, etc.), and the like.

Examples of the salt include metal salts (sodium, potassium, magnesium, aluminum, titanium, etc.), alkanolamine salts (monoethanolamine, diethanolamine, triethanolamine, etc.), ammonium salts, and the like.

As the component (B), a nonionic surfactant having an HLB value of 8.0 to 12.0 is preferable from the viewpoint that the oily composition containing makeup cosmetics is easily removed by the aqueous composition. Alkylene alkyl ethers are more preferred.

The content of the component (B) in the aqueous composition is preferably 0.05 to 5.0% by mass, more preferably 0.10 to 2.0% by mass, relative to 100% by mass of the aqueous composition. %, more preferably 0.10 to 1.0 mass %. When the content of the component (B) is 0.05% by mass or more, the oily composition containing the makeup cosmetic is more easily removed by the aqueous composition, and when the content is 5.0% by mass or less, the above It becomes difficult to emulsify the aqueous composition and the oily composition.

(Component (C))
In the cleansing sheet cosmetic of the present invention, the moisturizing feeling after cleansing can be enhanced by blending the polyhydric alcohol (component (C)).

Examples of the component (C) include glycols, glycerins, sugars, and the like. Specific examples of the glycols include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, 1,3-butylene glycol, 1,2-butanediol and 1,2-pentane. diol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol and the like. Specific examples of the glycerins include glycerin, concentrated glycerin, diglycerin, polyglycerin and the like. Moreover, specific examples of the sugars include sorbitol, maltitol, and trehalose. Among them, from the viewpoint of suppressing stickiness, glycols are preferred, polyethylene glycol, dipropylene glycol and propylene glycol are more preferred, and polyethylene glycol is even more preferred.

The polyethylene glycol preferably has a number average molecular weight of 4,000 to 30,000, more preferably 6,000 to 25,000.

As the polyethylene glycol, commercially available products can be used. name "Brownon PEG-20000S" (manufactured by Aoki Yushi Kogyo Co., Ltd.) and the like.

The content of the component (C) in the aqueous composition is preferably 0.01 to 40.0% by mass, more preferably 0.5 to 20.0% by mass, relative to 100% by mass of the aqueous composition. %. When the content of the component (C) is 0.01% by mass or more, the moisturizing feeling after use of the cleansing sheet cosmetic is likely to be improved, and when the content is 40.0% by mass or less, the feeling of stickiness after use. is suppressed.

(Component (D))
Examples of the water "ingredient (D)" used in the cleansing sheet cosmetic of the present invention include purified water, distilled water, ion-exchanged water, hot spring water, and deep sea water.

The content of the component (D) in the aqueous composition is 50.0 to 99.0% by mass with respect to 100% by mass of the aqueous composition, from the viewpoint that the refreshing feeling after cleansing is easily maintained. Preferably, it is 70.0 to 97.0% by mass.

(other ingredients)
The above aqueous composition may contain components (other components) other than the components (A) to (D) as long as they do not interfere with the object of the present invention. The above other aqueous components have the property of dissolving or dispersing in water. Examples of other aqueous components include water-soluble thickeners (hydroxyethylcellulose, hydroxypropylmethylcellulose, xanthan gum, etc.), lower alcohols (ethanol, etc.), moisturizing agents (hyaluronic acid, hyaluronic acid derivatives, etc.), and pearlizing agents. , anti-inflammatory agents (glycyrrhizic acid and its salts, tranexamic acid, allantoin, etc.), antiperspirants, disinfectants (isopropylmethylphenol, benzalkonium chloride, benzethonium chloride, chlorhexidine hydrochloride, phenol, trichlorocarbanilide, chlorhexidine gluconate , triclosan, triclocarban, piroctone olamine, zinc pyrithione, salicylic acid, sorbic acid, lysozyme chloride, etc.), cooling agents (menthol, menthyl glyceryl ether, menthyl lactate, camphor, icilin, etc.), pH adjusters (phosphoric acid and its salts) , citric acid and its salts, lactic acid and its salts, sodium hydroxide, triethanolamine, etc.), fragrance, UV absorber, antioxidant, chelating agent (EDTA-2Na, etc.), film-forming polymer compound (pyrivinyl pyrrolidone, etc.), pigments, pigments, vitamins (panthenol, vitamin C, retinol, etc.), amino acids, astringents, whitening agents, animal and plant extracts, acids, alkalis, and the like.

The cleansing sheet cosmetic of the present invention preferably does not contain surfactants (other surfactants) other than the component (A) and the component (B). The content of other surfactants is preferably less than 1.0% by mass, more preferably 0.1% by mass or less with respect to 100% by mass in total of the aqueous composition and the oily composition. When the content of the other surfactant is less than 1.0% by mass, the aqueous composition and the oily composition are difficult to emulsify, and cleansing power (particularly makeup cosmetic removing power) is obtained. more likely to be

<Oil-based composition>
The oil-based composition according to the present invention contains an oil "component (E)" that is liquid at 25°C.

The oily composition may contain other components than the component (E). In addition, each of the component (E) and other components contained in the oily composition may be used alone or in combination of two or more.

(Component (E))
Examples of "component (E)" that are liquid at 25°C include silicone oils, ester oils, hydrocarbon oils, fats and oils, waxes, and fatty acids.

Specific examples of the above silicone oils include dimethicone (decamethyltetrasiloxane, methylpolysiloxane, etc.), linear silicone (highly polymerized methylpolysiloxane (average degree of polymerization: 650 to 7000), methylphenylpolysiloxane, methylhydrogenpolysiloxane , dimethiconol, etc.), cyclic silicones (methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), amino-modified silicones (aminopropylmethylsiloxane/dimethylsiloxane copolymer, aminoethyl aminopropylsiloxane/dimethylsiloxane copolymer, aminoethylaminopropylmethylsiloxane/dimethylsiloxane copolymer, etc.), modified silicone (carboxy-modified silicone, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone, epoxy-modified silicone, fluorine-modified silicone, alkyl-modified silicone, etc.) and the like. Among them, dimethicone and decamethylcyclopentasiloxane are preferable from the viewpoint that make-up cosmetics are easily removed.

Specific examples of the ester oils include isostearyl isostearate, isopropyl isostearate, isodecyl isononanoate, isononyl isononanoate, octyl isononanoate, cetyl ethylhexanoate, cetyl octanoate, oleyl oleate, propylene glycol diisostearate, and diethylhexane. Neopentylene Glycol Acid, Neopentyl Glycol Dicaprate, Pentaerythrityl Tetraoctanoate, Trimethylolpropane Triisostearate, Erythrityl Triethylhexanoate, Trioctanoin, Caprylic/Capric Triglyceryl, Isopropyl Palmitate, Palmitin Ethylhexyl acid, jojoba ester, isostearyl myristate, isopropyl myristate, octyldodecyl myristate, diisostearyl malate and the like. Among them, isononyl isononanoate, cetyl 2-ethylhexanoate, and cetyl octanoate are preferable from the viewpoint of easy removal of makeup cosmetics.

Specific examples of the hydrocarbon oils include α-olefin oligomer, light isoparaffin, isododecane, light liquid isoparaffin, isohexadecane, squalane, synthetic squalane, vegetable squalane, liquid isoparaffin, liquid paraffin, and mineral oil. Among them, light isoparaffin, isododecane, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, and mineral oil are preferable from the viewpoint of easy removal of makeup cosmetics.

Specific examples of the fats, waxes, and fatty acids include almond oil, olive oil, rice bran oil, macadamia nut oil, jojoba oil, isostearic acid, and oleic acid.

The component (E) preferably contains the silicone oil, and more preferably contains the hydrocarbon oil.

The viscosity η of the component (E) measured at 25° C. using a Brookfield type rotational viscometer is preferably 0.1 to 5000 mPa·s, more preferably 1.0 mPa·s, more preferably 1.0 mPa·s. It is 0 to 1000 mPa·s.

The content of the component (E) in the oily composition is preferably 90.0 to 100% by mass, more preferably 90.0 to 100% by mass, based on 100% by mass of the oily composition, from the viewpoint of impregnating the sheet base material. 95.0 to 100% by mass.

(other ingredients)
The oily composition may contain components (other components) other than the component (E). The above other components have the property of dissolving or dispersing in the above component (E). Examples of the other oily components include oils that are solid at room temperature (vaseline, shea butter, etc.), antioxidants (tocopherol, etc.), oily dyes (Red No. 215, Red No. 223, Orange No. 201, etc.), and the like. be done.

When the aqueous composition and the oily composition are mixed, it is preferable that the two are phase-separated without being emulsified. At this time, when both are emulsified, the cleansing power (particularly, the makeup cosmetic removal power) of the cleansing sheet cosmetic that impregnates separate regions of the sheet base material with the aqueous composition and the oily composition is reduced. sometimes. Thus, since the aqueous composition and the oily composition are in a relationship such that phase separation occurs without emulsification when mixed, in the cleansing sheet cosmetic of the present invention, the aqueous composition and the oily composition A composition is impregnated into each separate region of the sheet substrate. When the aqueous composition and the oil-based composition are mixed and emulsified, the aqueous composition and the oil-based composition are emulsified and mixed together during the production of the sheet cosmetic. Each separate region should not be impregnated.

In the cleansing sheet cosmetic of the present invention, the total content of the oily composition and the aqueous composition is 100 parts by mass of the sheet base material from the viewpoint that high cleansing power is realized and dripping is easily suppressed. On the other hand, it is preferably 100 to 2000 parts by mass, more preferably 300 to 1000 parts by mass.

The cleansing sheet cosmetic of the present invention may have a desired size (area) and planar view shape, if necessary. The area of one sheet-like cosmetic is preferably 900 to 50,000 mm ² from the viewpoint of easy handling during use. The shape in plan view is not particularly limited, and may be any shape such as a square, triangle, circle, or ellipse.

It is preferable that the cleansing sheet cosmetic of the present invention is individually housed and individually packaged in a package from the viewpoint of ease of use and portability. The packaging body can be appropriately selected depending on the purpose and is not particularly limited. Packaging bodies (for example, bag-shaped packaging bodies) formed from foils and laminates thereof can be mentioned. The plastic film may be subjected to aluminum vapor deposition, alumina vapor deposition, silica vapor deposition, or the like. The number of sheets contained in one package of the cleansing sheet cosmetic of the present invention is preferably 1 to 2 sheets.

The cleansing sheet cosmetic of the present invention is particularly suitable for use on the face and lips because it exerts a sufficient removing power for long-lasting make-up cosmetics and does not impair the moisturizing feeling after use. The cleansing sheet cosmetic of the present invention is also useful for removing skin care agents such as foundations, sunscreens, milky lotions and skin creams. Especially useful.

[Method for producing cleansing sheet cosmetic]
The method for producing a cleansing sheet cosmetic of the present invention comprises a step of separately impregnating the sheet base material with the aqueous composition and the oily composition. Moreover, the method for producing the cleansing sheet cosmetic of the present invention may further include a step of housing the cleansing sheet cosmetic in a package.

The above-mentioned aqueous composition and the above-mentioned oily composition are separately prepared using a known or conventional method (for example, a method of mixing and stirring using a known stirring device such as a disper mixer or a paddle mixer). It can be prepared by a method of homogenization.

The prepared aqueous composition and the oily composition are separately applied, for example, by a known or commonly used method of coating or spraying (application using a slit nozzle or bar coater, spraying using a spray or air gun, etc.). , a roller, etc.), a method of immersing the sheet base material, or the like. In this way, a cleansing sheet cosmetic is obtained in which separate regions of the sheet base material are impregnated with the aqueous composition and the oily composition at the above-mentioned contents.

In the cleansing sheet cosmetic of the present invention, a sheet base material is impregnated with a specific aqueous composition and an oily composition, respectively. Since the aqueous composition and the oil-based composition are not emulsified, separate regions of the sheet base material are in a state in which the respective amounts of the aqueous composition and the oil-based composition are present. Therefore, when wiping off the make-up cosmetic, the solubility of the oil-based make-up cosmetic in the oily composition increases, making it easier to remove the make-up cosmetic. Furthermore, oily compositions containing make-up cosmetics are effectively removed with the aqueous composition. This realizes a high cleansing power for makeup cosmetics.

EXAMPLES The present invention will be described in more detail below based on examples, but the present invention is not limited only to these examples. The content described in the table is the content of each component (that is, the content of the active ingredient in each raw material, so-called pure content), and is expressed in "% by mass" unless otherwise specified.

Components used in Examples and Comparative Examples are as follows.

(Component (A))
・ Cocoyl arginine ethyl PCA: N-coconut fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate, trade name “CAE”, manufactured by Ajinomoto Co., Inc.

(Component (B))
· PPG-2-deceth-7: Polyoxyethylene/polyoxypropylene decyl ether, trade name "EMALEX DAPE-0207", manufactured by Nippon Emulsion Co., Ltd., HLB value 10.0

(Component (C))
・ PEG-400: Polyethylene glycol 20000, trade name “PEG#20000”, NOF Corporation, average molecular weight 20000

(Component (E))
Dimethicone 1.5CS: dimethylpolysiloxane, viscosity at 25°C 1.5CS
Dimethicone 5CS: dimethylpolysiloxane, viscosity at 25°C 5CS
・ Mineral oil: liquid paraffin, trade name “Carnation”, manufactured by Sonneborn ・ Isododecane: trade name “Marcazol R”, manufactured by Maruzen Petrochemical Co., Ltd.

(Other aqueous components)
・ EDTA-2Na: ethylenediaminetetraacetic acid, disodium salt, dihydrate

(Examples 1-4, Comparative Examples 1-5)
In the cleansing sheet cosmetic, each aqueous composition and each oily composition are prepared by a conventional method using each component (components (A) to (E) and others) so that the content is as shown in Table 1. did. A non-woven fabric (cotton, basis weight: 130 g/m ² ) was separately impregnated with each aqueous composition and each oil-based composition thus prepared to prepare evaluation samples of cleansing sheet cosmetics. The total content of the aqueous composition and the oily composition in the evaluation sample of the cleansing sheet cosmetic was set to about 700 parts by mass with respect to 100 parts by mass of the nonwoven fabric. Further, a mixture was prepared by blending the aqueous composition and the oily composition so that the mass ratio corresponded to the evaluation sample of the cleansing sheet cosmetic.

(evaluation)
The make-up cosmetic removing power, make-up cosmetic reattachment suppressing power and two-layer separability were evaluated as follows. The evaluation results are shown in Table 1.

(1) Make-up cosmetic removing power, make-up cosmetic reattachment suppressing power (removing power of oily composition containing make-up cosmetic)
A commercially available waterproof mascara was applied to artificial skin (trade name “Bio Skin Plate”, white, manufactured by Beaulux Co., Ltd.), left for 3 hours in an environment of 25° C., and used for evaluation. The mascara-applied artificial skin was rubbed 10 times with evaluation samples of the cleansing sheet cosmetics of Examples and Comparative Examples, and the degree of mascara removal was visually observed and evaluated according to the following criteria.
(Criteria for determination of makeup cosmetic removing power)
○ (Good): Mascara was completely removed. Alternatively, although mascara remains, the remaining mascara is dissolved in the impregnating liquid of the cleansing sheet cosmetic.
x (defective): mascara remained without dissolving in the impregnating liquid of the cleansing sheet cosmetic.
(Criteria for determination of makeup cosmetic reattachment inhibitory power)
○ (Good): Mascara was completely removed. Alternatively, although mascara remains, the remaining mascara is in a state of not being dissolved in the impregnating liquid of the cleansing sheet cosmetic.
x (defective): mascara remained dissolved in the impregnating liquid of the cleansing sheet cosmetic.

(2) Two-layer separability A mixture in which the aqueous composition and the oily composition are blended so that the mass ratio corresponds to the evaluation sample of the cleansing sheet cosmetic is sealed in a transparent container in a 25 ° C environment. It was then shaken and allowed to stand still for 24 hours to obtain an evaluation sample. Each evaluation sample was visually observed and evaluated according to the following evaluation criteria.
(Evaluation criteria)
◯: Phase separation into two layers was observed.
x: A cloudy emulsion layer was formed.

"-" in Comparative Examples 4 and 5 in Table 1 indicates that only one of the aqueous composition and the oil-based composition was used. In addition, "-" for the make-up cosmetic of Comparative Example 5 indicates that the make-up cosmetic removing power is "x" and cannot be evaluated.

From the results shown in Table 1, the cleansing sheet cosmetic of each example is excellent in the two-layer separation property of the corresponding mixture, and the makeup cosmetic removal power and makeup cosmetic reattachment of the sheet cosmetic evaluation sample It was found to have a high cleansing power due to its excellent suppressing power. On the other hand, Comparative Example 1, which does not contain N-coconut fatty acid acyl-L-arginine ethyl/DL-pyrrolidone carboxylate, is inferior in make-up cosmetic removal power and two-layer separation property, and polyoxyethylene/polyoxypropylene decyl ether. Comparative Example 2, which does not contain, and Comparative Example 3, which does not contain both N-coconut fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate and polyoxyethylene/polyoxypropylene decyl ether, are makeup cosmetics Comparative Example 4 containing only an oil-based composition was inferior in its ability to inhibit redeposition of makeup cosmetics, and Comparative Example 5 containing only an aqueous composition was inferior in its ability to remove makeup cosmetics. It was something.

Furthermore, formulation examples of the cleansing sheet cosmetic of the present invention are shown below.

[Prescription example 1] Cleansing sheet
<Aqueous composition>
Cocoyl arginine ethyl PCA 0.08% by mass
PPG-2-deceth-7 0.33 mass%
PEG-400 8.33 mass%
EDTA-2Na 0.08 mass%
Hydrolyzed hyaluronic acid 0.001% by mass
Purified water Remaining total 100.0% by mass
<Oil-based composition>
Dimethicone 1.5CS 12.5% by mass
Dimethicone 5CS 25.0% by mass
Mineral oil 12.5% by mass
Isododecane 12.5% by mass
Isononyl isononanoate 37.4% by mass
Tocopherol acetate 0.1% by mass
Total 100.0% by mass
<Sheet base material>
Spunlace nonwoven fabric (cotton 100% by mass, basis weight 85 g/m ² ) 100.0% by mass
325 parts by mass of the aqueous composition and 175 parts by mass of the oily composition were impregnated into 100 parts by mass of the sheet base material.

[Prescription Example 2] Cleansing sheet
<Aqueous composition>
Cocoyl arginine ethyl PCA 0.08% by mass
PPG-2-deceth-7 0.33 mass%
PEG-400 8.33 mass%
EDTA-2Na 0.08 mass%
L-ascorbic acid sulfate disodium 0.1 mass%
Hydrolyzed hyaluronic acid 0.001% by mass
Purified water Remaining total 100.0% by mass
<Oil-based composition>
Dimethicone 1.5CS 12.5% by mass
Dimethicone 5CS 25.0% by mass
Mineral oil 12.5% by mass
Isododecane 12.5% by mass
Isononyl isononanoate 37.4% by mass
Tocopherol acetate 0.1% by mass
Total 100.0% by mass
<Sheet base material>
Spunlace nonwoven fabric (rayon, polyethylene terephthalate, ethylene-vinyl alcohol copolymer, mixed fiber of polypropylene and polyethylene, basis weight 40 g/m ² ) 100.0% by mass
325 parts by mass of the aqueous composition and 175 parts by mass of the oily composition were impregnated into 100 parts by mass of the sheet base material.

[Prescription Example 3] Cleansing sheet
<Aqueous composition>
Cocoyl arginine ethyl PCA 0.08% by mass
PPG-2-deceth-7 0.33 mass%
PEG-400 8.33 mass%
EDTA-2Na 0.08 mass%
L-ascorbic acid sulfate disodium 0.1 mass%
Hydroxypropyltrimonium hyaluronate 0.0001% by mass
Purified water Remaining total 100.0% by mass
<Oil-based composition>
Dimethicone 1.5CS 12.5% by mass
Dimethicone 5CS 25.0% by mass
Mineral oil 12.5% by mass
Isododecane 12.5% by mass
Isononyl isononanoate 37.4% by mass
Tocopherol acetate 0.1% by mass
Total 100.0% by mass
<Sheet base material>
Spunlace nonwoven fabric (rayon, polyethylene terephthalate, ethylene-vinyl alcohol copolymer, mixed fiber of polypropylene and polyethylene, basis weight 40 g/m ² ) 100.0% by mass
325 parts by mass of the aqueous composition and 175 parts by mass of the oily composition were impregnated into 100 parts by mass of the sheet base material.

Claims (6)

Having a sheet base material, an aqueous composition and an oily composition,
At least one region of the sheet base material is impregnated with the aqueous composition, and at least one other region of the sheet base material is impregnated with the oily composition,
The aqueous composition comprises the following component (A), the following component (B), the following component (C) and the following component (D),
The oily composition contains the following component (E),
The mass ratio of the aqueous composition to the total of the aqueous composition and the oily composition (aqueous composition/(aqueous composition + oily composition)) is 0.40 to 0.80.
Sheet cosmetics for cleansing.
Component (A): N-Coconut fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate and/or benzalkonium chloride Component (B): Nonionic surfactant with an HLB value of 8.0 to 12.0 agent and/or acyl amino acid salt Component (C): Polyhydric alcohol Component (D): Water Component (E): Oil agent liquid at 25°C The cleansing sheet cosmetic according to claim 1, wherein the component (E) contains silicone oil. The cleansing sheet cosmetic according to claim 1 or 2, wherein the content of surfactants other than the component (A) and the component (B) is less than 1.0% by mass. The cleansing sheet cosmetic according to any one of claims 1 to 3, which is contained in a package. A method for producing a cleansing sheet cosmetic according to any one of claims 1 to 3,
A method for producing a cleansing sheet cosmetic, comprising a step of separately impregnating the sheet base material with the aqueous composition and the oily composition. Furthermore, the manufacturing method of the cleansing sheet cosmetic according to claim 5, further comprising a step of storing in a package.