Sheet-type cosmetic material for providing a cooling sensation

The sheet-like cosmetic, with a nonwoven fabric impregnated in a specific cosmetic composition, addresses the challenge of providing a sustained cooling sensation around the neck, preventing irritation and acting as an effective sweat wipe sheet.

JP7649638B2Active Publication Date: 2025-03-21KAO CORP
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Patent Information

Application Number
JP2020175306
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-11-25
Filing Date
2020-10-19
Publication Date
2025-03-21
Estimated Expiration
2040-10-19

AI Technical Summary

Technical Problem

Existing sheet-like cosmetics do not effectively provide a cooling sensation to the skin for an extended period, especially when used around the neck.

Method used

A sheet-like cosmetic comprising a nonwoven fabric impregnated with a cosmetic composition that includes refreshing ingredients, ethanol, and water, with a specific impregnation rate and concentration range of these components to maintain a cooling sensation and prevent irritation.

Benefits of technology

The sheet-like cosmetic effectively provides a sustained cooling sensation and prevents skin irritation even when used around the neck for a long time, while also acting as a sweat wipe sheet.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a sheet-like cosmetic that, even when hung around the neck, causes only a reduced feeling of irritation while keeping cold sensation, and can be used as a sweat wiping sheet as well.SOLUTION: A sheet-like cosmetic for giving cold sensation is hung around the neck for use and comprises nonwoven fabric, and a cosmetic composition with which the nonwoven fabric is impregnated. The rate of the impregnation of the nonwoven fabric with cosmetic composition is 300 mass% or greater and 490 mass% or less. The cosmetic composition contains component (A): a cool component, component (B): ethanol and water. In the cosmetic composition the content of component (A) is 0.015 mass% or greater and 0.3 mass% or less relative to the total mass of the cosmetic composition. When the concentrations (mass%) of components (A) and (B) in the cosmetic composition are defined as A and B, A1.1×B is 0.20 or more and 3.8 or less.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a sheet-type cosmetic material for imparting a cooling sensation. [Background technology]

[0002] Patent Documents 1 and 2 describe techniques relating to sheet cosmetics used for wiping sweat and removing body odor. Patent Document 1 (JP 2015-93859 A) describes a cosmetic preparation containing l-menthol, l-menthyl glyceryl ether, eucalyptol and / or borneol, menthyl lactate and / or menthyl oxalate ethylamide, and menthyl PCA and / or monomenthyl succinate. According to this document, such a cosmetic preparation provides a high cooling sensation to the user at the beginning of use, has excellent durability of the cooling sensation, and furthermore, when sweating occurs after use, the cooling sensation is improved, providing a more comfortable cooling sensation to the user, and also sufficiently reducing unpleasant irritation such as stinging sensation during use.

[0003] Patent Document 2 (JP 2018-115123 A) describes a sheet-shaped body odor remover containing a body cleansing composition, and describes a body odor removal method that includes a step of fixing a sheet-shaped body odor remover containing a body cleansing composition in contact with the skin for one minute or more. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2015-93859 A [Patent Document 2] JP 2018-115123 A Summary of the Invention [Problem to be solved by the invention]

[0005] Here, in the patent documents mentioned above in the Background Art section, there is no consideration from the viewpoint of imparting a cooling sensation to the skin with a sheet-type cosmetic product for a predetermined continuous period of time. For example, Patent Document 1 describes that the cosmetic product can be used as a wipe-off sheet, but does not consider the continuous contact of such a sheet with the skin. Furthermore, Patent Document 2 describes the continuous contact of the sheet with the skin for several minutes, but does not consider the use of the sheet to impart a cooling sensation to the skin.

[0006] Meanwhile, the present inventors have newly conceived the idea of ​​providing a sheet-type cosmetic preparation for providing a cooling sensation to be worn around the neck. Specifically, the present invention provides a sheet-type cosmetic preparation that can be worn around the neck for a long period of time while suppressing irritation and providing a sustained cooling sensation, and that can also be used as a sweat wiping sheet. [Means for solving the problem]

[0007] According to the present invention, A sheet-type cosmetic for providing a cooling sensation that is worn around the neck, A cosmetic composition comprising a nonwoven fabric and a cosmetic composition impregnated in the nonwoven fabric, The impregnation rate of the cosmetic composition in the nonwoven fabric is 300% by mass or more and 490% by mass or less, The cosmetic composition comprises the following components (A) and (B): (A) Cooling ingredient, (B) Ethanol and Contains water, The content of the component (A) in the cosmetic composition is 0.015% by mass or more and 0.3% by mass or less with respect to the total amount of the cosmetic composition, When the concentrations (mass%) of the components (A) and (B) in the cosmetic composition are A and B, respectively, A 1.1 The sheet-type cosmetic material has a ×B of 0.20 or more and 3.8 or less.

[0008] According to the present invention, there is provided a package in which the sheet-form cosmetic material of the present invention is contained within a packaging material.

[0009] The present invention also provides a method for using the sheet-type cosmetic material of the present invention, which comprises wearing the sheet-type cosmetic material of the present invention around the neck. Effect of the Invention

[0010] According to the present invention, a sheet-type cosmetic preparation can be provided which, even when worn around the neck for a long period of time, reduces irritation while maintaining a cooling sensation, and can also be used as a sweat wiping sheet. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing the configuration of a sheet-type cosmetic material in an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described. Each component contained in the composition may be contained alone or in combination of two or more kinds. In addition, in this specification, unless otherwise specified, "to" indicating a numerical range indicates from above to below, and both the upper limit and the lower limit are included.

[0013] (Cooling sheet cosmetic material) In this embodiment, the sheet-type cosmetic for imparting a cooling sensation is used by hanging it around the neck, more specifically, it is used by hanging it around the neck to impart a cooling sensation to the skin, and preferably it is used by hanging it around the neck to cool the skin. The sheet-type cosmetic contains a nonwoven fabric and a cosmetic composition impregnated into the nonwoven fabric, and the impregnation rate of the cosmetic composition into the nonwoven fabric is 300% by mass or more and 490% by mass or less. The cosmetic composition contains the following components (A) and (B) and water. (A) Cooling ingredient, (B) Ethanol The content of component (A) in the cosmetic composition is 0.015% by mass or more and 0.3% by mass or less based on the total amount of the cosmetic composition. When the concentrations (mass%) of components (A) and (B) in the cosmetic composition are A and B, respectively, A 1.1 ×B is 0.20 or more and 3.8 or less.

[0014] The present inventors have conducted research into a sheet-type cosmetic material to be worn around the neck that suppresses irritation even when in contact with the skin for long periods of time, while maintaining a cooling sensation, and can also be used as a sweat wiper at any time. As a result, the inventors have developed a sheet-type cosmetic material that contains a nonwoven fabric and a cosmetic composition containing components (A), (B), and water, and that has a cosmetic composition impregnation rate, a content of component (A), and a content of component (A) that is greater than or equal to 100% by weight. 1.1 It has been newly discovered that the required characteristics described above can be achieved by configuring the indexes, represented by x and B, to be within specific ranges. Each component will be described in more detail below.

[0015] (Nonwoven fabric) Specifically, the nonwoven fabric serves as a base material for the sheet-type cosmetic material. Specific examples of nonwoven fabric materials include lyocell, cupra, rayon, acetate, acrylic, polyester, polyethylene, polypropylene, polyurethane, polyamide, cotton, pulp, and blends thereof. Other examples include sheets in which at least one of pulp, rayon, and cotton is reinforced with a thermoplastic resin such as polyethylene, polypropylene, or polyethylene terephthalate. In this case, the mass ratio of pulp, rayon, cotton, and thermoplastic resin to the total is preferably 50% by mass or more, more preferably 80% by mass or more, and less than 100% by mass, from the viewpoint of providing a comfortable feel when worn around the neck for a long period of time.

[0016] From the viewpoint of excellent retention of the cosmetic composition, the material of the nonwoven fabric is preferably one or more materials selected from the group consisting of cotton and rayon. From the viewpoint of retention and release of the cosmetic composition, the mass ratio of cotton and rayon to the whole is preferably 50 mass% or more, more preferably 55 mass% or more, and even more preferably 60 mass% or more.

[0017] The average basis weight of the nonwoven fabric is preferably 20 g / m from the viewpoints of retaining the cosmetic composition and providing a good feel when wiping. 2 More preferably, it is 40 g / m 2 That's all. From the same viewpoint, the basis weight of the nonwoven fabric is preferably 150 g / m 2 More preferably, it is 100 g / m or less. 2 The following is the result. The average basis weight is calculated according to JIS L 1913, by cutting a nonwoven fabric into a certain area, measuring its mass (g), and dividing it by 1 m 2 This can be calculated by converting it into mass.

[0018] The thickness of the nonwoven fabric is preferably 0.15 mm or more, and more preferably 0.30 mm or more, in order to provide a satisfactory wiping response and a good feeling of use during wiping. From the same viewpoint, the thickness of the nonwoven fabric is preferably 1.30 mm or less, and more preferably 0.90 mm or less. Here, the thickness of the nonwoven fabric is 20 gf / cm 2 It is obtained by measuring the load with a dial gauge.

[0019] The nonwoven fabric is specifically in the form of a sheet, and is preferably in a shape that is difficult to remove from the neck when worn around the neck, for example, a rectangular shape. The longitudinal size of the nonwoven fabric, for example the length of the rectangle, is preferably 30 cm or more, more preferably 35 cm or more, and even more preferably 45 cm or more, from the viewpoint of making it easy to put around the neck and difficult to slip off from the neck. In addition, from the viewpoint of preventing excessive interference with clothing when worn around the neck, the longitudinal size of the nonwoven fabric, for example the length of the rectangle, is preferably 90 cm or less, more preferably 80 cm or less, and more preferably 70 cm or less.

[0020] The size of the nonwoven fabric in the short direction, for example the width of the rectangle, is preferably 2 cm or more, more preferably 3 cm or more, and even more preferably 4 cm or more, from the viewpoint of making it easy to wrap around the neck. There is no upper limit to the size of the nonwoven fabric in the short direction, for example, the width of the rectangle, but it is, for example, 12 cm or less, preferably 10 cm or less, and more preferably 8 cm or less. When using the sheet-like cosmetic preparation, the nonwoven fabric may be folded in the short direction to adjust the width. By folding the nonwoven fabric to increase its thickness, it is possible to improve the sense of stability when it is hung around the neck, for example.

[0021] (Cosmetic composition) The cosmetic composition comprises the following components (A) and (B) and water. (A) Cooling ingredient (B) Ethanol The cosmetic composition may be, for example, a skin external preparation. The cosmetic composition is preferably in a liquid form from the viewpoint of enhancing the impregnation of the nonwoven fabric.

[0022] (Component (A)) Examples of the cooling component of component (A) include menthol or derivatives thereof, such as l-menthol, menthyl acetate, menthyl lactate, l-menthyl glyceryl ether, and menthyl pyrrolidone carboxylic acid; menthol analogues, such as N-ethyl-p-menthane carboxamide; dl-camphor, isopulegol, cineol, borneol, thymol, and derivatives thereof; 3-l-methoxypropanediol; and essential oils containing menthol, such as peppermint oil and peppermint oil. In addition to its function as a cooling component, component (A) may have other functions, for example, component (A) may also function as a fragrance.

[0023] From the viewpoint of increasing the duration of the cooling sensation when used around the neck, component (A) preferably contains one or more compounds selected from the group consisting of menthol and its derivatives, and more preferably 1-menthol.

[0024] From the viewpoint of increasing the duration of the cool sensation, the content of component (A) in the cosmetic composition is 0.015% by mass or more, preferably 0.04% by mass or more, and more preferably 0.05% by mass or more, based on the total mass of the cosmetic composition. Furthermore, from the viewpoint of suppressing the sensation of irritation when the sheet-type cosmetic is worn around the neck for a predetermined period of time, the content of component (A) is 0.3 mass % or less, preferably 0.25 mass % or less, more preferably 0.15 mass % or less, and even more preferably 0.1 mass % or less, of the entire cosmetic composition.

[0025] (Component (B)) Component (B) is ethanol. The content of component (B) in the cosmetic composition is determined according to the content of component (A) in the cosmetic composition. 1.1 ×B is set to be within a predetermined range. Furthermore, from the viewpoint of enhancing the cooling sensation, the content of component (B) in the cosmetic composition is preferably 3% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, and even more preferably 20% by mass or more, based on the total amount of the cosmetic composition. Furthermore, from the viewpoint of suppressing the sensation of irritation when the sheet-type cosmetic is worn around the neck for a predetermined period of time, the content of component (B) is preferably 50% by mass or less, more preferably 45% by mass or less, and even more preferably 40% by mass or less, of the entire cosmetic composition.

[0026] In this embodiment, when the concentrations (mass%) of the components (A) and (B) in the cosmetic composition are A and B, respectively, A 1.1 An index represented by A × B is in a certain range. 1.1 ×B is an index that reflects the state of the sheet-type cosmetic material when it is worn around the neck for a specified period of time, and was newly discovered by the present inventor. 1.1 By setting xB within a specific range, it is possible to obtain a favorable balance between the cooling sensation and stimulating sensation when the sheet-type cosmetic is worn around the neck for a long period of time, and the usability when used to wipe the neck. Specifically, A 1.1From the viewpoint of obtaining a sustained cool sensation when worn around the neck and from the viewpoint of improving the wiping sensation when wiping, ×B is 0.20 or more, preferably 0.60 or more, more preferably 0.70 or more, and even more preferably 0.80 or more. In addition, in order to reduce the irritation felt when the product is worn around the neck for a long period of time, 1.1 ×B is 3.8 or less, preferably 1.50 or less, more preferably 1.00 or less, and further preferably 0.90 or less.

[0027] (water) The content of water in the cosmetic composition can be, for example, the remainder after excluding components other than water in the cosmetic composition. Furthermore, from the viewpoint of suppressing any irritating sensation felt when the sheet-type cosmetic is worn around the neck for a predetermined period of time, the content of water in the cosmetic composition is preferably 45% by mass or more, more preferably 50% by mass or more, even more preferably 55% by mass or more, and even more preferably 60% by mass or more, based on the total mass of the cosmetic composition. Furthermore, from the viewpoint of improving the cooling sensation over time when the sheet-type cosmetic material is worn around the neck, the content of water in the cosmetic composition is specifically less than 99.7% by mass, preferably 96% by mass or less, more preferably 90% by mass or less, even more preferably 85% by mass or less, and even more preferably 80% by mass or less, based on the total mass of the cosmetic composition.

[0028] The cosmetic composition may further include a component other than the components (A), (B) and water. For example, the cosmetic composition may include at least one of the following components (C) and (D).

[0029] (Component (C)) Component (C) is a polyhydric alcohol. Specific examples of component (C) include one or more selected from the group consisting of glycerin, propanediols and derivatives thereof such as 1,3-propanediol and 1,2-propanediol, sorbitol, ethylene glycol, diethylene glycol, polyethylene glycols having a number average molecular weight of 100 to 3000, propylene glycol, dipropylene glycol, 1,3-butanediol, and isoprene glycol. From the viewpoints of excellent retention of the cosmetic composition, preventing the sheet from drying out for a long period of time when the sheet is worn around the neck, thereby maintaining the cooling sensation for a longer period of time, and further preventing stickiness on the skin while providing an excellent moisturizing feeling, component (C) contains one or more types selected from the group consisting of polyethylene glycol, propanediol and derivatives thereof, and more preferably contains polyethylene glycol, and it is even more preferable that it contains polyethylene glycol having a number average molecular weight of 100 or more and 3000 or less, even more preferable that it contains polyethylene glycol having a number average molecular weight of 200 or more and 1000 or less, and even more preferable that it contains polyethylene glycol having a number average molecular weight of 250 or more and 700 or less. From a similar viewpoint, the number average molecular weight of polyethylene glycol is preferably 100 or more, more preferably 200 or more, and even more preferably 250 or more, and is preferably 3000 or less, more preferably 1000 or less, and even more preferably 700 or less.

[0030] The content of component (C) in the cosmetic composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, and even more preferably 0.05% by mass or more, based on the total mass of the cosmetic composition, from the viewpoints of improving the feel on the skin, providing moisture, and improving the retention of the cosmetic composition. Furthermore, from the viewpoint of suppressing the sticky feeling during wiping and the sticky feeling after wiping, the content of component (C) in the cosmetic composition is preferably 2 mass % or less, more preferably 1 mass % or less, even more preferably 0.7 mass % or less, and even more preferably 0.5 mass % or less, based on the total cosmetic composition.

[0031] The content mass ratio of component (A) to component (C) in the cosmetic composition ((A) / (C)) is preferably 0.01 or more, more preferably 0.02 or more, even more preferably 0.03 or more, still more preferably 0.05 or more, and is preferably 5 or less, more preferably 1 or less, and even more preferably 0.4 or less, from the viewpoints of preventing the sheet from drying out for a long period of time when the sheet is worn around the neck, thereby sustaining the cool sensation for a longer period of time, and further preventing stickiness on the skin and providing an excellent moisturizing sensation.

[0032] The total content of component (A) and component (C) in the cosmetic composition is, from the viewpoints of preventing the sheet from drying out for a long period of time when the sheet is worn around the neck, thereby sustaining the cool sensation for a longer period of time, and further preventing stickiness on the skin while providing an excellent moisturizing feeling, preferably 0.025% by mass or more, more preferably 0.06% by mass or more, and even more preferably 0.1% by mass or more, and is also preferably 2.3% by mass or less, more preferably 1.25% by mass or less, even more preferably 0.85% by mass or less, and even more preferably 0.6% by mass or less.

[0033] (Component (D)) Component (D) is a surfactant. From the viewpoint of improving the stability of the formulation, improving the retention of the cosmetic composition, and improving the skin feel, the component (D) preferably contains a nonionic surfactant. Examples of nonionic surfactants include polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene sorbit fatty acid esters, polyoxyalkylene glycerin fatty acid esters, polyoxyalkylene fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyalkylene alkylphenyl ethers, polyoxyalkylene (hydrogenated) castor oil, sucrose fatty acid esters, polyglycerin alkyl ethers, polyglycerin fatty acid esters, fatty acid alkanolamides, and alkyl glycosides. Among these, from the viewpoints of suppressing the slimy feeling during wiping and the sticky feeling immediately after wiping, and of liquid retention in the nonwoven fabric, polyoxyethylene hydrogenated castor oil, polyoxyalkylene alkyl ether, alkyl glycoside, polyoxyalkylene C8-C20 fatty acid ester, polyoxyethylene sorbitan fatty acid ester, and fatty acid alkanolamide are preferred.

[0034] More specifically, examples of polyoxyalkylene alkyl ethers include polyoxyethylene alkyl ethers such as polyoxyethylene hexyldecyl ether, polyoxyethylene octyldodecyl ether, polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, and polyoxyethylene nonylphenyl ether, polyoxypropylene alkyl ethers, and polyoxyethylene-polyoxypropylene alkyl ethers. Examples of alkyl glycosides include those having an alkyl group with 8 to 14 carbon atoms and a sugar (glucose) condensation degree of 1 to 2. Examples of polyoxyethylene sorbitan fatty acid esters include polyoxyethylene sorbitan coconut fatty acid ester and polyoxyethylene sorbitan monostearate. The fatty acid alkanolamide is preferably one having an acyl group with 8 to 18 carbon atoms, more preferably one having 10 to 16 carbon atoms, and may be either a monoalkanolamide or a dialkanolamide, but is preferably one having a hydroxyalkyl group with 2 to 3 carbon atoms. Specific examples of fatty acid alkanolamides include oleic acid diethanolamide, palm kernel oil fatty acid diethanolamide, coconut oil fatty acid diethanolamide, lauric acid diethanolamide, polyoxyethylene coconut oil fatty acid monoethanolamide, coconut oil fatty acid monoethanolamide, lauric acid monoisopropanolamide, lauric acid monoethanolamide, palm kernel oil fatty acid methylethanolamide, coconut oil fatty acid methylethanolamide, and the like.

[0035] From the viewpoint of suppressing the sticky feeling during wiping and the sticky feeling immediately after wiping, and from the viewpoint of improving the retention of the cosmetic composition on the nonwoven fabric, the nonionic surfactant is preferably one or more types selected from the group consisting of polyoxyalkylene alkyl ethers and polyoxyethylene hydrogenated castor oil, and more preferably polyoxyethylene lauryl ether and polyoxyethylene hydrogenated castor oil.

[0036] From the viewpoint of improving the skin-wiping properties and the stability of the formulation, the content of component (D) in the cosmetic composition is preferably 0.01 mass% or more, more preferably 0.02 mass% or more, and even more preferably 0.05 mass% or more, based on the total mass of the cosmetic composition. Furthermore, from the viewpoint of suppressing the sticky feeling during wiping and the sticky feeling immediately after wiping, the content of component (D) in the cosmetic composition is preferably 2 mass % or less, more preferably 1 mass % or less, even more preferably 0.7 mass % or less, and even more preferably 0.5 mass % or less, based on the total cosmetic composition.

[0037] The cosmetic composition may also contain components other than the above-mentioned components. For example, the cosmetic composition may contain a pH adjuster, such as organic acids and salts thereof, such as succinic acid, citric acid, tartaric acid, etc., inorganic acids and salts thereof, such as phosphoric acid, etc., 2-amino-2-hydroxymethyl-1,3-propanediol, etc. Of these, the content of 2-amino-2-hydroxymethyl-1,3-propanediol in the cosmetic composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.05% by mass or more, and is preferably 2% by mass or less, more preferably 1.5% by mass or less, even more preferably 1% by mass or less, still more preferably 0.5% by mass or less, and especially preferably 0.3% by mass or less, based on the total amount of the cosmetic composition.

[0038] From the viewpoint of reducing irritation to the skin, the pH of the cosmetic composition is preferably 4.3 or higher, more preferably 4.5 or higher, and preferably 8.0 or lower.

[0039] Next, a method for producing the sheet-type cosmetic material will be described. A method for producing a sheet-type cosmetic material includes, for example, a step of preparing a cosmetic composition and a nonwoven fabric, and a step of impregnating the nonwoven fabric with the cosmetic composition. In the step of impregnating the nonwoven fabric with the cosmetic composition, there is no limitation on the impregnation method, and examples thereof include a method of spraying the cosmetic composition onto the nonwoven fabric using a sprayer, an air gun, or the like, and a method of directly applying the cosmetic composition to the sheet substrate using a slit-type nozzle, or the like, and impregnating the nonwoven fabric.

[0040] The impregnation rate of the cosmetic composition into the nonwoven fabric is 300% by mass or more, preferably 330% by mass or more, more preferably 360% by mass or more, and even more preferably 390% by mass or more, based on the mass of the nonwoven fabric, from the viewpoint of obtaining a preferable wet feeling and cool feeling when wiping even after hanging the nonwoven fabric around the neck for a long time. From the viewpoint of the feeling of use when worn around the neck, the impregnation rate of the cosmetic composition is 490% by mass or less, preferably 480% by mass or less, and more preferably 460% by mass or less, based on the mass of the nonwoven fabric.

[0041] (packaging) In this embodiment, the package is, for example, a package in which the sheet-type cosmetic material of this embodiment is contained, and is preferably sealed. There are no restrictions on the material of the packaging body, and it can be, for example, a laminated film in which a barrier layer such as an aluminum sheet (aluminum foil) or a silica vapor deposition film is sandwiched between the layers and covered on both sides with synthetic resin film layers made of, for example, polyethylene, polyethylene terephthalate, polypropylene, polyester, polyamide, polyvinyl chloride, etc. Furthermore, there is no limitation on the shape of the package, and it can be, for example, a pillow bag, a gusset bag, a pouch, a box, a bottle, a jar, or the like. One packaging material may contain one sheet-type cosmetic material, or two or more sheet-type cosmetic materials. Also, two or more sheet-type cosmetic materials may be contained in a connected state in one packaging material. In this case, for example, perforations may be provided in the nonwoven fabric, and the sheet-type cosmetic material to be used can be cut along the perforations and used. The sheet-type cosmetic material is stored, for example, in a folded or rolled state.

[0042] The impregnation rate of the cosmetic composition into the nonwoven fabric 1 hour after the sheet-type cosmetic is removed from the package is preferably 80% by mass or more, more preferably 120% by mass or more, and even more preferably 150% by mass or more, relative to the mass of the nonwoven fabric, from the viewpoint of enhancing the durability of the favorable feel in use of the sheet-type cosmetic. There is no limit to the impregnation rate of the cosmetic composition into the nonwoven fabric one hour after the sheet-type cosmetic is removed from the package, and it may be, for example, equal to or lower than the impregnation rate at the time the sheet-type cosmetic is removed from the package, and may be, for example, 200% by mass or less.

[0043] Next, a method of using the sheet-type cosmetic material will be described. The method of using the sheet-type cosmetic material specifically includes hanging the sheet-type cosmetic material around the neck. In this case, the sheet-type cosmetic material may be hung around the neck as is, or the sheet-type cosmetic material may be folded according to the size of the user's neck and hung around the neck. In addition, from the viewpoint of preventing the sheet-type cosmetic material from falling off the neck, for example, the sheet-type cosmetic material may be wrapped around the neck. In this embodiment, even when the device is worn around the neck for a long period of time, it is possible to suppress irritation to the skin and to obtain a continuous cooling sensation. In addition, according to this embodiment, it is possible to actually lower the temperature of the skin, for example.

[0044] 1(a) and 1(b) are diagrams showing an example of the configuration of a sheet-type cosmetic material, and are respectively a front view and a perspective view showing the state in which the sheet-type cosmetic material is worn around the neck. In Fig. 1(a) and (b), an example is shown in which the sheet-type cosmetic material 100 is folded in half and worn around the neck of a user.

[0045] The sheet-type cosmetic material may also be used to wipe the skin. There is no restriction on the timing of wiping the skin, and the skin may be wiped before, during, or after the cosmetic material is worn around the neck, but the skin is preferably wiped while the cosmetic material is worn around the neck or after the cosmetic material is worn around the neck. When wiping the skin, the sheet-type cosmetic material may be left around the neck or may be removed from the neck. The skin to be wiped with the sheet-type cosmetic material is, for example, skin other than the scalp, and may be the entire body, preferably the face; neck; upper body such as hands and arms; or lower body such as legs, and more preferably the face; neck or upper body. In this embodiment, the cosmetic composition contains component (B) and water, and the content of component (A) is 1.1 Since the composition (B) and the impregnation rate are each within a specific range, even after a certain period of time has passed since the composition was placed around the neck, the skin temperature can actually be lowered by the heat of vaporization generated when the component (B) and water contained in the cosmetic composition transferred to the skin evaporate during wiping, and a sensation of coolness can also be imparted even after wiping.

[0046] Although the embodiments of the present invention have been described above, these are merely examples of the present invention, and various configurations other than those described above can also be adopted. EXAMPLES

[0047] (Examples 1 to 21, Comparative Examples 1 to 16) The cosmetic composition of each example was prepared according to the formulation shown in Tables 1 to 5, and the nonwoven fabric was impregnated with the composition to obtain the impregnation rate shown in Tables 1 to 5, to obtain a sheet-type cosmetic preparation of each example. The obtained sheet-type cosmetic preparation was evaluated for cool sensation after 1 hour, lack of irritation over time, and wiping feel after 1 hour. The evaluation results are also shown in Tables 1 to 5.

[0048] (Method for preparing cosmetic composition) (A) The cooling ingredient was dissolved in (B) ethanol at room temperature (25°C), and the other ingredients were then added to the aqueous phase to prepare the composition.

[0049] (Method of manufacturing sheet-type cosmetic material) Nonwoven fabric (70% cotton / 30% rayon, width 23 cm, length 46 cm, average thickness 0.33 mm, average basis weight 45 g / m 2 ) was thoroughly soaked with the cosmetic composition obtained in each example, and then the liquid was spread to ensure uniform impregnation.

[0050] (Evaluation method) (Cooling sensation after 1 hour) The sheet-type cosmetic obtained in each example was folded in half and placed around the neck, and the cooling sensation on the back of the neck after one hour at room temperature (25°C) was evaluated on a three-point scale. The evaluation was performed by four expert panelists according to the following criteria, and the scores and average scores of each panelist are shown in Tables 1 to 5. Those judged as ○ and ◎ were considered to be passing. Evaluation criteria 3 points: Cool feeling 2 points: Slightly cold 1 point: Slightly cold 0 points: No cooling sensation Judgment criteria ◎: The average score is between 2.00 and 3.00 ○: The average score is between 1.00 and 2.00 ×: The average score is between 0.00 and 1.00

[0051] (No irritation over time) The sheet-type cosmetic obtained in each example was folded in half and placed around the neck, and the sensation of irritation over the course of one hour at room temperature (25°C) was evaluated. The evaluation was performed by four expert panelists according to the following criteria, and the scores and average scores of each panelist are shown in Tables 1 to 5. Those judged as ○ and ◎ were deemed to have passed. Evaluation criteria 2 points: No irritation 1 point: Slightly irritating, but within tolerable limits 0 points: Stimulation beyond the acceptable range Judgment criteria ◎: The average score is between 1.50 and 2.00 ○: The average score is between 0.50 and 1.50 ×: The average score is between 0.00 and 0.50

[0052] (Feeling of wiping after 1 hour) The sheet-type cosmetic preparation obtained in each example was folded in half and hung around the neck, and after one hour at room temperature (25°C), the inside of the upper arm was wiped clean and the wiping sensation was evaluated. The evaluation was performed by four expert panelists according to the following criteria, and the scores and average scores of each panelist are shown in Tables 1 to 5. Those judged as △, ○, and ◎ were considered to have passed. Evaluation criteria 4 points: High wiping sensation 3 points: Somewhat high wiping sensation 2 points: Slightly poor wiping sensation 1 point: Poor wiping sensation 0 points: No wiping sensation Judgment criteria ◎: Average score is between 3.00 and 4.00 ○: The average score is between 2.00 and 3.00 △: The average score is between 1.00 and 2.00 ×: The average score is between 0.00 and 1.00

[0053] [Table 1]

[0054] [Table 2]

[0055] [Table 3]

[0056] [Table 4]

[0057] [Table 5]

[0058] Here, Example 7 shown in Table 1 is also shown in Tables 4 and 5. In Tables 1 to 5, the content of each component is the active amount. As can be seen from Tables 1 to 5, the sheet-type cosmetics obtained in each Example had an excellent balance of effects such as cool feeling after 1 hour when applied to the neck, lack of irritation over time, and wiping feel after 1 hour.

[0059] Example 22 The sheet-type cosmetic product of Example 7 was evaluated for ease of hanging and wrapping around the neck by changing the length and width of the nonwoven fabric according to the following criteria. The evaluation was performed by five expert panelists according to the following criteria, and the average score is shown. The evaluation results are shown in Tables 6 and 7.

[0060] (Easy to wear around the neck) The width of the nonwoven fabric was set to 12 cm, and the length was varied for evaluation. Evaluation criteria 3. It can be worn around the neck and is very comfortable to wear. 2: It can be worn around the neck and is comfortable to wear. 1: Can be worn around the neck 0: Cannot be worn around the neck (Easy to wrap around the neck) Evaluation criteria The length of the nonwoven fabric was set to 46 cm, and evaluation was performed with different widths. 3. It can be worn around the neck and feels very comfortable around the neck. 2. It can be worn around the neck and is comfortable to wear. 1: Can be worn around the neck 0: Cannot be worn around the neck

[0061] [Table 6]

[0062] [Table 7]

[0063] (Examples 23 and 24) A cosmetic composition for each example was prepared according to the formulation shown in Table 8, and a nonwoven fabric was impregnated with the cosmetic composition to obtain the impregnation rate shown in Table 8, thereby obtaining a sheet-type cosmetic for each example. When the obtained sheet-type cosmetic was evaluated by placing it around the neck, it had an excellent cooling sensation after 1 hour, no irritating sensation over time, and an excellent wiping sensation after 1 hour.

[0064] [Table 8] [Explanation of symbols]

[0065] 100 Sheet-type cosmetics

Claims

1. A sheet-type cosmetic used to give a cooling sensation when worn around the neck, A cosmetic composition comprising a nonwoven fabric and a cosmetic composition impregnated in the nonwoven fabric, The impregnation rate of the cosmetic composition into the nonwoven fabric is 300% by mass or more and 490% by mass or less, The cosmetic composition comprises the following components (A) and (B): (A) Cooling ingredient, (B) Ethanol and Contains water, The component (A) contains one or more compounds selected from the group consisting of menthol and its derivatives, the content of the component (A) in the cosmetic composition is 0.015% by mass or more and 0.25% by mass or less with respect to the total amount of the cosmetic composition, When the concentrations (mass%) of the components (A) and (B) in the cosmetic composition are A and B, respectively, A 1.1 ×B is 0.20 or more and 1.50 or less, The sheet-form cosmetic composition has a water content of 45% by mass or more and 96% by mass or less based on the total mass of the cosmetic composition.

2. The sheet-form cosmetic according to claim 1 , wherein the cosmetic composition further comprises component (C): a polyhydric alcohol.

3. 3. The sheet-form cosmetic according to claim 2, wherein the content mass ratio ((A) / (C)) of the component (A) to the component (C) in the cosmetic composition is 0.01 or more and 5 or less.

4. The sheet-form cosmetic according to claim 1 , wherein the cosmetic composition further comprises a component (D): a surfactant.

5. 5. The sheet-type cosmetic material according to claim 1, wherein the nonwoven fabric has a rectangular planar shape and a length of 35 cm or more and 80 cm or less.

6. 6. The sheet-type cosmetic material according to claim 1, wherein the nonwoven fabric has a rectangular planar shape and a width of 3 cm to 12 cm.

7. A package comprising a packaging material containing the sheet-type cosmetic material according to any one of claims 1 to 6.

8. A method for using a sheet-type cosmetic material, comprising wearing the sheet-type cosmetic material according to claim 1 around the neck.

Citation Information

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