Sheet-like cosmetic or sheet-like skin external preparation

Abstract

To provide a sheet-like cosmetic or a sheet-like skin external preparation which maintains the stability of allantoin in a composition impregnated in a nonwoven fabric by impregnating a specific nonwoven fabric with a composition which combines allantoin and one or two more selected from 1,3-butylene glycol, propylene glycol, dipropylene glycol and tripropylene glycol in specific amounts and ratios and has an excellent moist feeling and lack of stickiness after use.SOLUTION: There is provided a sheet-like cosmetic or a sheet-like skin external preparation obtained by impregnating the following nonwoven fabric (A) with the following composition (B). (A) a nonwoven fabric selected from cotton, PET, pulp and rayon, (B) a composition comprising the following component (a) to (b): (a) allantoin, (B) one or two or more selected from 1,3-butylene glycol, propylene glycol, dipropylene glycol and tripropylene glycol, wherein the content of the following component (a) in the total amount of the composition (B) is 0.05 to 0.5 mass%, the content of the component (b) is 10 to 30 mass% and the pH at 25°C is 3.5 to 6.0.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a sheet-shaped cosmetic or a sheet-shaped external preparation for skin.

Background Art

[0002] Allantoin has anti-inflammatory and cell-activating effects, and is known to protect the skin from damage caused by inflammation and external stimuli and to repair damaged skin. Therefore, it has been conventionally used as an active ingredient in cosmetics. In addition, in order to enhance the moisturizing effect and the like when using liquid cosmetics such as lotion and essence, the usefulness of a non-woven fabric-impregnated cosmetic in which a non-woven fabric is impregnated and attached to the face for a long time is known. As a cosmetic in which a composition containing allantoin is impregnated into a non-woven fabric, for the purpose of preventing dripping of the chemical solution as much as possible, it contains a certain amount of polyol and a water-soluble polymer compound, and is composed of a chemical solution having a specific viscosity and a non-woven fabric having a specific basis weight. Mask preparations (see Patent Document 1), mask preparations containing a heparin-like substance and hyaluronic acid in a non-woven fabric (see Patent Document 2), baby wipes, wet wipes for hands and mouths, etc. have been disclosed (Non-Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when allantoin is impregnated into a non-woven fabric as a cosmetic, it has been observed that its stability decreases over time and it precipitates. Regarding Patent Document 1, in Examples 1 and 2, the stability of allantoin was not particularly evaluated, and there was no disclosure of the type of non-woven fabric or pH. Judging from the formulation components, since it is near neutral, the stability of allantoin is considered not to be good. Similarly, in Patent Document 2, although allantoin is formulated in the formulation example (Table 7: wiping sheet), there is no disclosure regarding the stability of allantoin, pH, or non-woven fabric. Therefore, an object of the present invention is to provide a sheet-shaped external preparation for skin in which the stability of allantoin is ensured even when a cosmetic containing allantoin is impregnated into a non-woven fabric.

Means for Solving the Problems

[0006] As a result of intensive studies to solve the above problems, the present inventor has found that by combining allantoin with one or more selected from 1,3-butylene glycol, propylene glycol, dipropylene glycol, and tripropylene glycol in a specific amount, and by selecting a specific non-woven fabric and a specific pH, it is possible to ensure the stability of allantoin and realize a sheet-shaped cosmetic or a sheet-shaped external preparation for skin that is excellent in moisturizing feeling and non-stickiness. Thus, the above problems have been solved and the present invention has been completed.

[0007] That is, the present invention provides the following. [1] A sheet-shaped cosmetic or a sheet-shaped external preparation for skin in which the following composition (B) is impregnated into the following non-woven fabric (A). (A) A non-woven fabric selected from cotton, PET, pulp, and rayon (B) Composition The following components (a) to (b); (a) Allantoin (b) It contains one or more selected from 1,3 - butylene glycol, propylene glycol, dipropylene glycol, and tripropylene glycol. The content of the component (a) in the total amount of the composition (B) is 0.05 to 0.5% by mass, the content of the component (b) is 10 to 30% by mass, and the pH at 25°C is 3.5 to 6.0. [2] Furthermore, the sheet - like cosmetic or sheet - like external preparation for skin according to [1], wherein the composition (B) contains one or more selected from the component (c1) glycerin, (c2) polyglycerin, and (c3) polyethylene glycol. [3] The basis weight of the (A) is 30 g / m 2 The sheet - like cosmetic or sheet - like external preparation for skin according to [1] or [2], wherein the basis weight is 30 g / m or more. [4] Furthermore, the sheet - like cosmetic or sheet - like external preparation for skin according to [1] or [2], wherein the composition (B) contains one or more selected from the component (d1) bis(ethoxydiglycol) cyclohexane - 1,4 - dicarboxylate, (d2) PEG / PPG / polybutylene glycol - 8 / 5 / 3 glycerin, (d3) polyoxyalkylene alkyl ether, (d4) glycerin polyoxyalkylene alkyl ether, and (d5) a polymer having a phosphorylcholine group. [5] The sheet - like cosmetic or sheet - like external preparation for skin according to [1] or [2], wherein the non - woven fabric of (A) is selected from a mixed non - woven fabric of cotton and PET, a mixed non - woven fabric of pulp and rayon, and pulp only. [6] The sheet - like cosmetic or sheet - like external preparation for skin according to [1] or [2], wherein the content of (c1) in the total amount of the composition (B) is 3 to 12% by mass, or the content of (c2) or (c3) is 1 to 10% by mass.

Effects of the Invention

[0008] The sheet-like cosmetic or sheet-like external preparation for skin of the present invention ensures the stability of allantoin in the composition impregnated in the nonwoven fabric, and is excellent in the moist feeling and non-stickiness after use.

Embodiments for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present invention will be described. The present invention is not limited only to the following embodiments. In this specification, "X to Y" indicating a range includes X and Y and means "X or more and Y or less".

[0010] <(A): Nonwoven fabric selected from cotton, polyethylene terephthalate (PET), pulp, and rayon> (A) in the present invention is used by impregnating the (B) composition. (A) used in the present invention is not particularly limited as long as it is usually used in cosmetics and quasi-drugs. There is no particular limitation on the production method of (A), and known production methods can be used. For example, methods such as spunbond, meltblown, thermal bond, chemical bond, spunlace, and needle punch can be used, and it can also be used as a mixed nonwoven fabric produced by combining nonwoven fabrics such as cotton and PET, pulp and rayon. Further, it can be used for any purpose such as for the face, body, hair, and local use of these parts, and it may have cuts or the like. Examples of being attached to the face include a type that covers the entire face with one sheet (upper and lower integrated type), a type that divides the upper and lower halves of the face and covers it with two sheets (upper and lower separated type), a type that covers the face with two sheets above and below with the eyes as a boundary (upper and lower separated type), and a type that covers only the eye area. Among these, considering that the nonwoven fabric is excellent in moist feeling and the like in the present invention, it is preferably for the face, and more preferably for the entire face.

[0011] From the viewpoints of the stability of allantoin as component (a) and suppression of crystal precipitation, (A) has a basis weight of 30 g / m 2 or more is preferable, 50 g / m 2 or more is more preferable, 60 g / m 2The above is even more preferable. Further, in terms of the stability of allantoin of component (a), as the type of non-woven fabric, a mixed non-woven fabric of cotton and PET, a mixed non-woven fabric of pulp and rayon, and only pulp are preferable, and a combination of cotton and PET and only pulp are particularly preferable.

[0012] (A) impregnated with the composition (B) of the present invention preferably has a thickness of 0.5 to 10 mm per sheet of the sheet material and a mass of 2.4 g or less per sheet of the sheet material after impregnation in terms of the convenience such as the feeling of adhesion and ease of peeling during use. More preferably, the thickness is 0.7 to 5 mm and the mass is 2.0 g or less. The impregnation amount of the composition (B) of the present invention into (A) is preferably 2 to 15 times the mass of the sheet material to be impregnated, and more preferably 6 to 12 times. The method of impregnating the composition (B) of the present invention into (A) is not particularly limited and can be carried out by known means.

[0013] <Component (a): Allantoin>

[0014] Component (a) used in the present invention is allantoin defined in the Pharmaceutical Excipients Raw Material Standard 2021, has an anti-inflammatory action and a cell-activating action, is known to protect the skin from damage caused by inflammation and external stimuli, and repair damaged skin. Component (a) is not particularly limited in the present invention, and any one can be used. Examples of these commercial products include "RONACARE ALLANTOIN" (manufactured by Merck Performance Materials).

[0015] The content of component (a) in the present invention is preferably 0.05% by mass (hereinafter simply abbreviated as %) or more, particularly preferably 0.1% or more, based on the total amount of the composition (B). Further, it is 0.5% or less, particularly preferably 0.3% or less. Within this range, the stability of (a) in the composition (B) impregnated into (A) is excellent, and precipitation on the non-woven fabric is not observed, which is preferable.

[0016] <Component (b): 1,3-Butylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol> Component (b) used in the present invention is not particularly limited as long as it is commonly used in cosmetics and quasi-drugs. In the present invention, it is used for imparting a moist feeling and suppressing crystal precipitation of component (a), etc., and one or more kinds can be used in combination as necessary. Examples of these commercial products include, for example, "1,3-butylene glycol" (manufactured by Daicel Corporation), "propylene glycol" (manufactured by ADEKA Corporation), "dipropylene glycol" (manufactured by Seikei Bussan Co., Ltd.), "TPG-H" (manufactured by ADEKA Corporation), etc.

[0017] The content of component (b) in the present invention is 10% or more, more preferably 13% or more, and particularly preferably 15% or more, based on the total amount of composition (B). Also, it is 30% or less, more preferably 25% or less, and particularly preferably 20% or less. Within this range, the stability of (a) in the composition (B) impregnated in (A) is excellent, and precipitation on the non-woven fabric is not observed, which is preferable. Also, the moist feeling of the sheet-shaped cosmetic or sheet-shaped external preparation for skin is excellent, and there is no stickiness, which is preferable.

[0018] <Component (c1): Glycerin> It is preferable to further contain component (c1) in the present invention, and it is not particularly limited as long as it is commonly used in cosmetics and quasi-drugs. Examples of commercial products include, for example, "Concentrated Glycerin for Cosmetics" (manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.), etc.

[0019] <Component (c2): Polyglycerin> It is preferable to further contain component (c2), polyglycerin, in the present invention. Component (c2) is a high molecular compound having a structure in which glycerin is polymerized. The polyglycerin of the present invention is not particularly limited as long as it is commonly used in cosmetics, and examples thereof include polyglycerin having a number average molecular weight of 166 or more. In the present invention, the polymerization degree of polyglycerin preferably has a lower limit value of 2 or more (diglycerin), more preferably 3 or more (polyglycerin-3). The upper limit value is preferably 20 or less, more preferably 10 or less, and further preferably 6 or less. Within this range, it is more preferable because the stability of allantoin, suppression of precipitation, and the persistence of the moist feeling are excellent. Examples of commercially available products include "Diglycerin S", "PGL-S", "Polyglycerin #500", "Polyglycerin #750" (manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.), etc.

[0020] <Component (c3): Polyethylene glycol> It is preferable to further contain component (c3) polyethylene glycol in the present invention, which is a high molecular compound having a structure in which ethylene glycol is polymerized. The polyethylene glycol of the present invention is not particularly limited as long as it is usually used in cosmetics. For example, polyethylene glycols having a number average molecular weight of 300 to 25,000 can be mentioned. The number average molecular weight is measured by the average molecular weight test described in the raw material standard for quasi-drugs by the end group quantification method, specifically by the hydroxyl value obtained by titration. In the present invention, the number average molecular weight of polyethylene glycol preferably has a lower limit of 200 or more, more preferably 300 or more, and even more preferably 400 or more. The upper limit is preferably 20,000 or less, more preferably 6,000 or less, and even more preferably 1,600 or less. Within this range, it is more preferable because the stability of allantoin, suppression of precipitation, and the persistence of the moist feeling are excellent. Examples of commercially available products include "PEG#300" (manufactured by NOF Corporation), "PEG-400" (manufactured by Toho Chemical Co., Ltd.), "PEG-1500" (manufactured by Toho Chemical Co., Ltd.), "PEG-6000P" (manufactured by Sanyo Chemical Industries, Ltd.), "Polyethylene glycol 20000" (manufactured by Clariant Japan Co., Ltd.), etc.

[0021] The content of component (c1) with respect to the total amount of composition (B) in the present invention is preferably 3% or more, and even more preferably 6% or more. Also, 12% or less is preferable. The content of component (c2) or component (c3) is preferably 1% or more, and even more preferably 3% or more. Also, 10% or less is preferable. Within this range, it is preferable because the stability of allantoin, suppression of precipitation, the moist feeling after use, and the non-stickiness are excellent.

[0022] The present invention can further contain one or more selected from component (d1) bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate, (d2) PEG / PPG / polybutylene glycol-8 / 5 / 3 glycerin, (d3) polyoxyalkylene alkyl ether, (d4) glycerin polyoxyalkylene alkyl ether, and (d5) a polymer having a phosphorylcholine group as a component for improving the non-stickiness after use of a sheet-like cosmetic or a sheet-like external preparation for skin.

[0023] <Component (d1) bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate> It is preferable that the present invention further contains component (d1) bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate. Component (d1) is a diester of diethylene glycol monoethyl ether and cyclohexane 1,4-dicarboxylic acid, and examples of commercially available products include "Neosolue-Aqulio" (manufactured by Nippon Fine Chemical Co., Ltd.).

[0024] <Component (d2) PEG / PPG / polybutylene glycol-8 / 5 / 3 glycerin> It is preferable that the present invention further contains component (d2) PEG / PPG / polybutylene glycol-8 / 5 / 3 glycerin. Component (d2) is an ether of polyethylene glycol, polypropylene glycol, polybutylene glycol, and glycerin, and may be represented as polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether (3B.O.)(8E.O.)(5P.O.). Examples of commercially available products include "Wilbride S-753" (manufactured by NOF Corporation).

[0025] <Component (d3) polyoxyalkylene alkyl ether> It is preferable that the present invention further contains component (d3). In the present invention, component (d3) is represented by the general formula (1). HO[(EO) l -(PO) m -(BO) n ​q -R of Formula (1) In Formula (1), EO represents an oxyethylene group, EO represents an oxypropylene group, BO represents an oxybutylene group, and R represents an alkyl group having 1 to 10 carbon atoms. Also, l, m, and n are the average number of moles added of EO, PO, and BO, respectively, (l + m + n) is a value from 1 to 100, l is a value from 0 to 40, m is a value from 1 to 100, n is a value from 0 to 40, and q is a value from 1 to 30. Note that the positions of EO, PO, and BO may be arbitrarily interchanged. Commercially available products include, for example, "Unilube 50MP-11D (PPG-10 butesu-9)" (manufactured by NOF Corporation), "Unilube MB-700 (PPG-52 butyl)" (manufactured by NOF Corporation), "Acrovute MB-90 (PPG-90 butyl ether)" (manufactured by NOF Corporation), "Unilube 50MB-168 (PPG-38 butes-37)" (manufactured by NOF Corporation), etc., and PPG-38 butes-37 is particularly preferred.

[0026] <Component (d4) Glycerin polyoxyalkylene alkyl ether> It is preferable to further contain Component (d4) in the present invention. In the present invention, Component (d4) is represented by General Formula (2). Gly x -[(EO) l -(PO) m -(BO) n y -R of Formula (2) ​In formula (2), Gly represents the residue obtained by removing the hydrogen group from glycerin, EO represents an oxyethylene group, EO represents an oxypropylene group, BO represents an oxybutylene group, and R represents hydrogen or an alkyl group having 1 to 10 carbon atoms. Also, l, m, and n are the average number of moles added of EO, PO, and BO, respectively, (l + m + n) is a value from 1 to 50, x is a value from 1 to 2, and y is a value from 1 to 30. Note that the positions of EO, PO, and BO may be arbitrarily interchanged. As commercial products, for example, "SY-DP9 (PPG-9 diglyceryl)" (manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.), "Unilube DGP-950 (PPG-14 diglyceryl)" (manufactured by NOF Corporation), "NIKKOL SG-G2424 (PPG-24 glyceress-24)" (manufactured by Nikko Chemicals Co., Ltd.), "LIPONIC EG-1 (glyceress-26)" (manufactured by LIPO CHEMICALS), etc. can be mentioned, and PPG-9 diglyceryl is particularly preferred.

[0027] <Polymer solution having a phosphorylcholine group <constituent (d5)>> It is preferable to further contain component (d5) in the present invention. As commercial products of component (d5) in the present invention, for example, "Lipidure-PMB (polyquaternium-51)", "Lipidure-HM (polymethacryloyloxyethyl phosphorylcholine)", "Lipidure-HM-600 (polymethacryloyloxyethyl phosphorylcholine)", "Lipidure-A (polyquaternium-65)", "Lipidure-C (polyquaternium-64)", "Lipidure-S (polyquaternium-61)", "Lipidure-NR (polyquaternium-61)", "Lipidure-NA (polyquaternium-61)" (all manufactured by NOF Corporation), etc. can be mentioned, and polymethacryloyloxyethyl phosphorylcholine is particularly preferred.

[0028] The total content of components (d1) to (d5) with respect to the total amount of the composition (B) in the present invention is preferably 1% or more, more preferably 4% or more. Also, 8% or less is preferable. Within this range, it is preferable because the moisturizing feeling and non-stickiness after use are more excellent.

[0029] <ph> The pH of the composition (B) in the present invention is 6.0 or less at 25°C, preferably 5.0 or less, and more preferably 4.5 or less. Also, it is 3.5 or more, preferably 3.8 or more, and even more preferably 4.0 or more. By setting it within these ranges, it is more preferable because the high-temperature stability of allantoin over time is excellent. In the present application, the pH measurement was performed at 25°C, and a glass electrode type hydrogen ion concentration meter (manufactured by Horiba, Ltd.) was used for the measurement.

[0030] In the sheet-like cosmetic or sheet-like external preparation for skin of the present invention, in addition to the above components (a), (b), (c1) to (c3), (d1) to (d5), other additives may be added. Examples of other additives include, for example, water, surfactants, emulsification aids, oily components, fragrances, aqueous components other than components (d1) to (d5), humectants, polyhydric alcohols other than component (b) and (c1) to (c3), powders, ultraviolet absorbers, gelling agents, anti-fading agents, antioxidants, preservatives, pH adjusters, external components such as cosmetic components other than component (a), etc., and can be appropriately contained within a range that does not impair the effects of the present invention.

[0031] Here, the aqueous component is other than components (d1) to (d5), and any component that is soluble in water may be used. Examples include sugar alcohols such as glycols, glycerols, sorbitol, maltitol, glucose, etc. The water is not particularly limited as long as it is generally used in cosmetics, etc. Examples include purified water, hot spring water, ion-exchanged water, deep layer water, tap water, or steam distilled water of plants, etc., and one kind or two or more kinds can be appropriately selected and used as necessary.

[0032] As the surfactant, any surfactant that is usually used in cosmetics can be used, and examples include nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, etc.

[0033] Examples of the emulsification aid include higher alcohols, monoglyceryl ethers, and monoglyceryl fatty acid esters.

[0034] As the oily component, any oil that is usually used in cosmetics can be used, regardless of the origin such as animal oil or synthetic oil, or the properties such as semi-solid oil, liquid oil, or volatile oil, and examples include hydrocarbon oils, silicone oils, fluorine-based oils, lanolin derivatives, etc.

[0035] As the powder component, any powder that is usually used in cosmetics can be used, and it is not particularly limited by the shape such as spherical, plate-like, or needle-like, the particle size such as smoky, fine particles, or pigment grade, the particle structure such as porous or non-porous, etc., and examples include inorganic powders, brightening powders, organic powders, pigment powders, metal powders, composite powders, etc. These may be surface-treated with fluorine compounds, silicone oil, powders, oils, gelling agents, emulsion polymers, surfactants, etc. These powders can be used alone or in combination of two or more, and further composite ones can also be used.

[0036] Examples of the ultraviolet absorber include benzophenone-based, PABA-based, cinnamic acid-based, salicylic acid-based, etc., for example, 4-tert-butyl-4'-methoxydibenzoylmethane, oxybenzone, 2-ethylhexyl paramethoxycinnamate, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, etc.

[0037] Examples of the antioxidant include tocopherol, ascorbic acid, etc., examples of the beauty component include vitamins, anti-inflammatory agents, crude drugs, etc., and examples of the preservative include paraoxybenzoic acid esters, phenoxyethanol, etc.

[0038] In addition, the composition (B) to be impregnated into the sheet-shaped cosmetic or sheet-shaped external preparation for skin of the present invention can be implemented in various forms such as liquid, gel, cream, mousse, etc. Among them, it is preferable to use a liquid form in order to obtain the effects of the present invention. Here, the liquid state means a state having fluidity at 25°C. Specifically, at 25°C, the viscosity measured using a Brookfield type rotational viscometer is 20,000 mPa·s or less, preferably 10,000 mPa·s or less, more preferably 5,000 mPa·s or less.

[0039] The sheet-shaped cosmetic or sheet-shaped external preparation for skin of the present invention is not particularly limited as long as it is applicable to the skin. Specifically, it may be in any form such as quasi-drugs, cosmetics, skin cleansers, etc., and preferably quasi-drugs and cosmetics.

[0040] The sheet-shaped cosmetic or sheet-shaped external preparation for skin of the present invention can be used as a cosmetic. For example, it is suitable as a lotion, emulsion, cream, essence, massage cosmetic, pack cosmetic, wiping sheet, body lotion, body cream, makeup cosmetic, makeup base cosmetic, sunscreen, perfume, body fragrance, etc. Lotions, essences, pack cosmetics, and wiping sheets are preferred, and particularly pack cosmetics and wiping sheets are preferred. Also, examples of its usage method include a method of attaching it to the face as a pack cosmetic and leaving it for a while and then peeling it off, and a method of using it as a wiping sheet. All of them are preferable in terms of usability.

[0041] The manufacturing method of the sheet-shaped cosmetic or sheet-shaped external preparation for skin of the present invention is not particularly limited and is prepared by a conventional method. For example, a method of dissolving a solid component in water, then sequentially mixing and dissolving other components, and impregnating (A) the non-woven fabric can be mentioned.

[0042] In addition, the present invention can also adopt the following configuration. [1] It is a sheet-like cosmetic or a sheet-like external preparation for skin in which the following composition (B) is impregnated into the following non-woven fabric (A). (A) A non-woven fabric selected from cotton, PET, pulp, and rayon (B) Composition The following components (a) to (b); (a) Allantoin (b) It contains one or more selected from 1,3-butylene glycol, propylene glycol, dipropylene glycol, and tripropylene glycol, the content of the component (a) in the total amount of the composition (B) is 0.05 to 0.5%, the content of the component (b) is 10 to 30%, and the pH at 25 °C is 3.5 to 6.0. [2] Furthermore, it is the sheet-like cosmetic or the sheet-like external preparation for skin according to [1], wherein the composition (B) contains one or more selected from component (c1) glycerin, (c2) polyglycerin, and (c3) polyethylene glycol. [3] The basis weight of the (A) is 30 g / m 2 or more, and it is the sheet-like cosmetic or the sheet-like external preparation for skin according to [1] or [2]. [4] Furthermore, it is the sheet-like cosmetic or the sheet-like external preparation for skin according to any one of [1] to [3], wherein the composition (B) contains one or more selected from component (d1) cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol, (d2) PEG / PPG / polybutylene glycol-8 / 5 / 3 glycerin, (d3) polyoxyalkylene alkyl ether, (d4) glycerin polyoxyalkylene alkyl ether, and (d5) a polymer having a phosphorylcholine group. [5] The non-woven fabric of (A) is selected from a mixed non-woven fabric of cotton and PET, a mixed non-woven fabric of pulp and rayon, and only pulp, and it is the sheet-like cosmetic or the sheet-like external preparation for skin according to any one of [1] to [4]. [6] The content of (c1) in the total amount of the composition (B) is 3 to 12%, or the content of (c2) or (c3) is 1 to 10%, which is the sheet-like cosmetic or sheet-like external preparation for skin according to any one of [2] to [5].

Examples

[0043] The effects of the present invention will be described using the following Examples and Comparative Examples. However, the technical scope of the present invention is not limited only to the following Examples.

[0044] Examples 1 to 42, and Comparative Examples 1 to 7: Sheet-like cosmetics Sheet-like cosmetics having the compositions shown in Tables 1 to 7 were produced by the following production method, and the presence or absence of precipitates, the high-temperature stability of allantoin, the moist feeling, and the non-stickiness were evaluated and determined by the methods shown below. The results are also shown in Tables 1 to 7.

[0045] Table 1 TIFF2025105471000001.tif126129

[0046] Table 2 TIFF2025105471000002.tif126129

[0047] Table 3 TIFF2025105471000003.tif126129

[0048] Table 4 TIFF2025105471000004.tif126129

[0049] Table 5 TIFF2025105471000005.tif126129

[0050] Table 6 TIFF2025105471000006.tif126129

[0051] Table 7 TIFF2025105471000007.tif126129 Note 1: PEG-400 (manufactured by Toho Chemical Co., Ltd.) Note 2: Polyethylene glycol 20000 (manufactured by Clariant) Note 3: NEOSOLUE-AQULIO (manufactured by Nippon Fine Chemical Co., Ltd.) Note 4: Wilbride S-753 (manufactured by NOF Corporation) Note 5: SY-DP9 (manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.) Note 6: LIPIDURE-HM-600 (manufactured by NOF Corporation, 5% of the essential component)

[0052] (Manufacturing method) Components (1) to (6) were mixed and dissolved with a small amount of component (19), and then components (7) to (18) and the remaining component (19) were added to obtain composition (B). Thereafter, each non-woven fabric (A) was impregnated with 20 g of composition (B) to obtain a sheet-shaped cosmetic.

[0053] (Evaluation method 1: Presence or absence of precipitate) Regarding the presence or absence of precipitate, for each sample, after storing at 50 °C for 1 month after production and then allowing to stand at room temperature for 24 hours, the presence or absence of precipitate on the non-woven fabric was visually confirmed and judged using the following two-stage judgment criteria.

[0054] (Presence or absence of precipitate) <Two-stage judgment criteria> (Judgment): (Average particle size) 〇: No precipitate was observed ×: Precipitate was observed

[0055] (Evaluation method 2: High-temperature stability of allantoin) Regarding the high-temperature stability of allantoin, for each sample, after storing at 50 °C for 1 month after production, the content of allantoin was quantified and calculated by comparing with the initial value immediately after production, and judged using the following five-stage judgment criteria.

[0056] (High-temperature stability of allantoin) <Five-stage judgment criteria> (Judgment): (Allantoin content relative to the initial value) A: 97% or more relative to the initial value B: More than 95% and less than 97% relative to the initial value C: More than 90% and less than 95% relative to the initial value D: More than 80% and less than 90% relative to the initial value E: Less than 80% relative to the initial value ※Allantoin content relative to the initial value = 100 × Allantoin content of the sample stored at 50°C for 1 month / Allantoin content immediately after production

[0057] (Evaluation method 3: Moist feeling) Regarding the moist feeling, for each sample, 10 professional cosmetic evaluators evaluated it. After pasting the sheet-like cosmetic on the face and peeling it off after 10 minutes, regarding the moist feeling at that time, it was evaluated on a 5-point scale by the following absolute evaluation, scored, the average value was calculated from the total scores of all panelists of each sample, and judged according to the following 5-level judgment criteria.

[0058] (Moist feeling) <Absolute evaluation criteria> (Judgment): (Judgment criteria) 5: Very moist 4: Considerably moist 3: Moist 2: Relatively weak moist feeling 1: Weak moist feeling <5-level judgment criteria> (Judgment): (Average score) A: 4.0 points or more B: More than 3.5 points and less than 4.0 points C: More than 3.0 points and less than 3.5 points D: More than 2.5 points and less than 3.0 points E: Less than 2.5 points

[0059] (Evaluation method 4: Lack of stickiness) Regarding stickiness, for each sample, it was evaluated by 10 professional cosmetic evaluators. The sheet-type cosmetic was applied to the face, and after 10 minutes, the stickiness when it was peeled off was evaluated on a five-point scale using the following absolute evaluation, scored, and the average value was calculated from the total scores of all panelists for each sample, and the determination was made according to the following five-point determination criteria.

[0060] (Stickiness) <Absolute evaluation criteria> (Determination): (Determination criteria) 5: Not sticky at all 4: Not very sticky 3: Not sticky 2: Relatively sticky 1: Sticky <Five-point determination criteria> (Determination): (Average score) A: 4.0 points or more B: 3.5 points or more and less than 4.0 points C: 3.0 points or more and less than 3.5 points D: 2.5 points or more and less than 3.0 points E: Less than 2.5 points

[0061] As is clear from the results in Tables 1 to 7, the sheet-type cosmetics of Examples 1 to 42 of the present invention were superior in the stability of allantoin after long-term high-temperature storage (precipitation and remaining amount) compared to the sheet-type cosmetics of Comparative Examples 1 to 7, and furthermore, were superior in the moist feeling after use and the stickiness after use. In Examples 24 to 35 to which Component (c) was added, the high-temperature stability of allantoin and the moist feeling after use were further improved, and in Examples 36 to 42 to which Component (d) was added, there was a tendency for further improvement in the non-stickiness after use.

[0062] In contrast, in Comparative Example 1 where the non-woven fabric material of (A) was cupra, it was inferior in the high-temperature stability of allantoin. Further, in Comparative Example 2 where the content of component (a) allantoin exceeded 0.5%, the high-temperature stability of allantoin was good but precipitation was observed, and in Comparative Example 3 where the content of allantoin was less than 0.05%, the high-temperature stability of allantoin was insufficient. Also, in Comparative Examples 4 and 5 where the pH of Composition (B) exceeded 6.0, the high-temperature stability of allantoin was insufficient. Further, Comparative Example 6 where the amount of component (b) was less than 10% was inferior in the high-temperature stability of allantoin, and the sticky feeling that could be observed and precipitation were also insufficient. On the other hand, Comparative Example 7 where component (b) exceeded 30% had no problems with the high-temperature stability and precipitation of allantone, but was inferior in terms of stickiness after use.

[0063] Example 43: Packaged Cosmetics (Components) (mass%) 1. Allantoin 0.2 2. PEG-50 Hydrogenated Castor Oil Isostearate 0.3 3. Cholesterol 0.01 4. Isostearic Acid 0.1 5. Ceramide 2 (Note 7) 0.01 6. Astaxanthin 0.002 7. Tocopherol 0.1 8. Fragrance 0.02 9. 1,3-Butylene Glycol 10 10. Dipropylene Glycol 5 11. Glycerin 5 12. Bis(ethoxydiglycol) Cyclohexane-1,4-dicarboxylate 1 13. Citric Acid 0.1 14. Sodium Citrate 0.1 15. Ascorbic Acid 0.1 16. Polysaccharide Produced by Alcaligenes 0.1 17. Purified Water Balance (pH: 4.7, Non-woven fabric: Mixed non-woven fabric of pulp and rayon, Basis weight: 80 g / m 2 (Manufactured by Sanwa Shigyo Co., Ltd. / KP9380)) (Note 7) Ceramide TIC-001 (manufactured by Takasago Perfumery Co., Ltd.)

[0064] (Production method) 1. After mixing and dissolving components (2) to (5) at 90 °C, cool to room temperature and mix components (6) to (8). Then add components (1), components (9) to (17) and solubilize, and cool. 2. Impregnate 22 g of non-woven fabric with 1 to obtain a pack cosmetic.

[0065] The pack cosmetic of Example 43 had no precipitation of allantoin and was excellent in the high-temperature stability of allantoin, the moisturizing feeling, and the non-stickiness.

[0066] Example 44: Pack cosmetic (Components) (mass%) 1. Allantoin 0.1 2. Hydrogenated lecithin 1.0 3. Phytosterol 0.1 4. 1,3-Butylene glycol 5.0 5. Glycerin 5.0 6. Tocopherol 0.1 7. Perfume 0.05 8. Xanthan gum 0.3 9. Hydroxypropylmethylcellulose (Note 8) 0.1 10. 1,3-Butylene glycol 10 11. Propylene glycol 5 12. PEG-400 5 13. PPG-9 diglyceryl 2 14. Succinic acid 0.1 15. Sodium succinate 0.1 16. Ethanol 3.0 17. Purified water balance (pH: 4.0, non-woven fabric: pulp, basis weight: 60 g / m 2 (manufactured by Futamura Chemical Co., Ltd. / TCF#406WJ) (Note 8) Methocel 60SH10000 (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0067] (Production method) 1. After mixing and dissolving Components (2) to (6) at 70°C, emulsify with Components (1), (7) to (17) using a disperser, and then cool. 2. Impregnate 18 g of non-woven fabric with 1 to obtain a packed cosmetic.

[0068] The packed cosmetic of Example 44 had no precipitation of allantoin and was excellent in the high-temperature stability of allantoin, moisturizing feeling, and non-stickiness.

[0069] Example 45: Packed Cosmetic (Component) (Mass %) 1. Allantoin 0.3 2. Hydrogenated Lecithin 0.5 3. Triethylhexanoin 2.0 4. Liquid Paraffin 1.5 5. Perfume 0.1 6. 1,3-Butylene Glycol 7.0 7. Tripropylene Glycol 5.0 8. Dipropylene Glycol 5.0 9. Diglycerin 2.0 10. Ethanol 2.0 11. Polyoxybutylene Polyoxyethylene Polyoxypropylene Glyceryl Ether (3B.O.)(8E.O.)(5P.O.) 2.0 12. Citric Acid 0.1 13. Sodium Citrate 0.1 14. Xanthan Gum 1.0 15. Hydroxypropyltrimonium Hyaluronate (Note 9) 0.05 16. Purified Water The balance (pH: 4.5, Non-woven fabric: Pulp, Basis weight: 60 g / m 2 (Manufactured by Futamura Chemical Co., Ltd. / TCF#406WJ)) (Note 9) TREMOIST-TP (Manufactured by Nippon Seika Co., Ltd.)

[0070] (Production Method) 1. After mixing and dissolving Components (2) to (5) at 70°C, emulsify with Components (1), (6) to (16) using a disperser, and then cool. 2.1 was impregnated into 16 g of non-woven fabric to obtain a packed cosmetic.

[0071] The packed cosmetic of Example 45 had no precipitation of allantoin and was excellent in the high-temperature stability, moisturizing feeling, and non-stickiness of allantoin.< / ph>

Claims

1. A sheet-shaped cosmetic or sheet-shaped external preparation for skin in which the following composition (B) is impregnated into the following non-woven fabric (A). (A) A non-woven fabric selected from cotton, PET, pulp, and rayon (B) Composition The following components (a) to (b); (a) Allantoin (b) One or more selected from 1,3-butylene glycol, propylene glycol, dipropylene glycol, and tripropylene glycol A composition containing the above, wherein the content of the component (a) in the total amount of the composition (B) is 0.05 to 0.5% by mass, the content of the component (b) is 10 to 30% by mass, and the pH at 25°C is 3.5 to 6.

0.

2. Further, the sheet-shaped cosmetic or sheet-shaped external preparation for skin according to Claim 1, wherein the composition (B) contains one or more selected from component (c1) glycerin, (c2) polyglycerin, and (c3) polyethylene glycol.

3. The basis weight of the nonwoven fabric (A) is 30 g / m ２ The sheet-like cosmetic or sheet-like external preparation for skin according to claim 1 or 2, wherein the basis weight is 30 g / m or more.

4. Further, the sheet-shaped cosmetic or sheet-shaped external preparation for skin according to Claim 1 or 2, wherein the composition (B) contains one or more selected from component (d1) cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol, (d2) PEG / PPG / polybutylene glycol-8 / 5 / 3 glycerin, (d3) polyoxyalkylene alkyl ether, (d4) glycerin polyoxyalkylene alkyl ether, and (d5) a polymer having a phosphorylcholine group.

5. The sheet-shaped cosmetic or sheet-shaped external preparation for skin according to Claim 1 or 2, wherein the non-woven fabric of (A) is selected from a mixed non-woven fabric of cotton and PET, a mixed non-woven fabric of pulp and rayon, and pulp only.

6. The sheet-shaped cosmetic or sheet-shaped external preparation for skin according to Claim 1 or 2, wherein the content of (c1) in the total amount of the composition (B) is 3 to 12% by mass, or the content of (c2) or (c3) is 1 to 10% by mass.

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