KR101883683B1 - Cosmetic sheet - Google Patents

Abstract

The present invention relates to a cosmetic sheet which is excellent in stretchability and followability of a nonwoven fabric and a film and which is also excellent in lift-up effect and suitable for use in a face mask, a foot care sheet and a moisturizing sheet, Wherein the nonwoven fabric is a nonwoven fabric containing a thermoplastic elastomer as the nonwoven fabric and the heat-sealable fiber contained in the nonwoven fabric is fusion-bonded with the film Sheets for personal use.

Description

{COSMETIC SHEET}

The present invention relates to a cosmetic sheet. More particularly, the present invention relates to a cosmetic sheet suitable for use in, for example, a face mask, a foot care sheet, a moisturizing sheet, and the like.

In recent years, as a face mask which facilitates the spreading of a liquid impregnated base material containing a cosmetic liquid, suppression of separation and desorption of the cosmetic liquid from the liquid impregnated base material, and suppression of the evaporation of the active ingredient, (See, for example, paragraphs [0008] - [0009] of Patent Document 1), in which a substrate and a liquid blocking film are superposed and joined in a spot shape. A nonwoven fabric made of rayon, cotton, polyester fiber, or the like is used as a base material for the face mask. The nonwoven fabric can be welded to the liquid blocking film by incorporating the heat-sealable fiber into the nonwoven fabric or attaching the hot-melt binder to the nonwoven fabric (see, for example, paragraph [0014] of Patent Document 1). Further, a face mask in which a cotton nonwoven fabric and a polyethylene resin film are integrated as a face mask having a wet feeling is proposed to prevent evaporation of moisture (see, for example, paragraph 1 of Patent Document 2).

However, since both the face mask and the face mask have low elasticity, for example, when stretched by 50%, the nonwoven fabric and the film are not followed and peeling may occur. Therefore, the elasticity and the followability of the nonwoven fabric and the film are excellent in recent years, The lift-up effect (an effect of lifting the ball portion and the face line of the face when the face mask is mounted on the face of a human being) is also excellent, and development of a cosmetic sheet that can be suitably used, for example, .

Japanese Patent No. 3866555 Japanese Utility Model Registration No. 3080940

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned prior arts, and it is an object of the present invention to provide a nonwoven fabric which is superior in stretchability and followability of a nonwoven fabric and a film and also has a superior lift-up effect and can be suitably used for a face mask, a foot care sheet, An object of the present invention is to provide a cosmetic sheet.

According to the present invention,

(1) A cosmetic sheet comprising a nonwoven fabric and a film laminated thereon, wherein a nonwoven fabric containing heat-sealable fibers is used as the nonwoven fabric, a film containing a thermoplastic elastomer is used as the film, Characterized in that the film and the film are fusion-bonded together,

(2) the cosmetic sheet according to (1) above, wherein the load at the time of 50% elongation is 0.75 to 3.5 N / 25 mm, and

(3) The cosmetic sheet described in (1) or (2) above, wherein the elongation after stretching by 50% is 20% or less.

According to the present invention, there is provided a cosmetic sheet that is excellent in stretchability and followability of a nonwoven fabric and a film, has excellent lift-up effect, and can be used suitably for a face mask, a foot care sheet, a moisturizing sheet, and the like.

As described above, the cosmetic sheet of the present invention is a cosmetic sheet in which a nonwoven fabric and a film are laminated, a nonwoven fabric containing heat-sealable fibers is used as the nonwoven fabric, and a film containing the thermoplastic elastomer is used as the film , And the heat-sealable fiber contained in the nonwoven fabric and the film are fusion-bonded to each other.

Since the cosmetic sheet of the present invention has the above-described constitution, it is excellent in stretchability and followability of the nonwoven fabric and film, and also has a lift-up effect and can be suitably used for a face mask, a foot care sheet, have. When the load at the time of 50% elongation of the cosmetic sheet of the present invention is 0.75 to 3.5 N / 25 mm, preferably 0.75 to 3 N / 25 mm, and more preferably 0.75 to 2.5 N / 25 mm, When the sheet is used, for example, in a face mask or the like, there is an advantage that the ball portion and the face line of the human face can be lifted with an appropriate force. When the stretch rate of the cosmetic sheet of the present invention after stretching by 50% is 20% or less, when the cosmetic sheet of the present invention is used, for example, in a face mask or the like, There is an advantage that it can be kept lifting.

As the fibers constituting the nonwoven fabric, heat-sealable fibers are used, but the heat-insoluble fibers may be contained within a range not hindering the object of the present invention.

Examples of the heat-sealable fiber include polyolefin fibers such as polyethylene fibers and polypropylene fibers; polyester fibers such as polyethylene terephthalate fibers; Polyvinyl chloride fibers, polyvinyl chloride fibers, polyester-polyamide fibers, polyester-polyolefin fibers, polyester-polyamide fibers, polyamide fibers represented by various nylons, polyacrylic fibers, ethylene- Fibers, and composite fibers such as polyamide-polyamide composite fibers. However, the present invention is not limited to these examples. These heat-sealable fibers may be used alone or in combination of two or more. Examples of the conjugate fiber include core-sheath conjugated fiber and side-by-side conjugated fiber, but the present invention is not limited to these examples.

Examples of the heat-insoluble fiber include rayon fiber, cotton, pulp, hemp, aromatic polyamide fiber, phenol fiber, carbon fiber, ceramic fiber and metal fiber, but the present invention is not limited to these examples . These heat-insoluble fibers may be used alone or in combination of two or more. Of these heat-insoluble fibers, rayon fibers, cotton and pulp are preferable, rayon fibers and cotton are more preferable, and rayon fibers are more preferable from the viewpoint of imparting appropriate strength and stretchability to the cosmetic sheet of the present invention.

The content of the heat-sealable fiber in the nonwoven fabric is preferably not less than 10% by mass, more preferably not less than 15% by mass, further preferably not less than 20% by mass from the viewpoint of solidly bonding the film to the nonwoven fabric, The upper limit thereof is 100% by mass.

The fiber length and fineness of the fibers constituting the nonwoven fabric are not particularly limited, but the fiber length is preferably about 20 to 100 mm, more preferably about 40 to 80 mm, and the fineness is preferably about 1 to 30 denier, And more preferably about 3 to 10 denier. The fibers constituting the nonwoven fabric may contain staple fibers having a fiber length of preferably about 0.5 to 20 mm, more preferably about 1 to 15 mm, for example, within a range not hindering the object of the present invention .

Since the weight per unit area of the nonwoven fabric differs depending on the use of the cosmetic sheet of the present invention, it can not be uniformly determined, but is preferably 5 to 200 g / m 2, More preferably from 10 to 180 g / m 2, further preferably from 20 to 150 g / m 2, still more preferably from 30 to 100 g / m 2.

Examples of the method for producing the nonwoven fabric include needle punching, water interlacing, span bond method, melt blowing method, wet grassing method, high-pressure steam substitution method and the like, but the present invention is not limited to these examples .

The nonwoven fabric is used for lifting the ball portion and the face line of the face of a human being with a suitable force when the cosmetic sheet of the present invention is used, for example, in a face mask or the like, It is preferable that it is easy.

The stretching direction of the nonwoven fabric generally has a longitudinal direction and a transverse direction. Normally, the longitudinal direction of the elongation of the nonwoven fabric refers to the flow direction of the nonwoven fabric when the nonwoven fabric is produced, and the transverse direction of the elongation of the nonwoven fabric refers to the direction perpendicular to the flow direction of the nonwoven fabric. When the above nonwoven fabric is used, for example, in a face mask or the like, from the viewpoint of lifting the ball portion and the face line of the human face with a suitable force and maintaining the lifted state, a nonwoven fabric, And the lateral direction of the human face is the same.

The longitudinal tensile elongation and the transverse tensile elongation of the nonwoven fabric are obtained by lifting the ball portion and the face line of the human face with a suitable force when the inventive cosmetic sheet is used, for example, in a face mask or the like, (Longitudinal direction) and 120 to 220% (transverse direction), preferably 45 to 105% (longitudinal direction) and 125 to 215% (transverse direction), respectively, More preferable.

Further, the tensile elongation of the nonwoven fabric is a value obtained in accordance with "6.3.1" of JIS L1913 (2010). More specifically, the tensile elongation in the longitudinal direction and the transverse direction of the nonwoven fabric was determined by cutting out three test pieces having a rectangular shape of 50 mm x 150 mm from the nonwoven fabric and setting the initial length (length of the test piece) to 100 mm with a tensile tester, The tensile elongation (ratio of the elongated length to the original length) was measured by measuring the elongation at the time when the test piece was cut at a speed of 300 mm / min, and the average value of the tensile elongation of the three test specimens was used as the tensile elongation of the nonwoven fabric. And the tensile elongation in the longitudinal direction and in the transverse direction.

The value of the ratio of the tensile elongation in the transverse direction and the tensile elongation in the longitudinal direction of the nonwoven fabric (transverse tensile elongation / longitudinal direction tensile elongation), when the inventive cosmetic sheet is used, for example, in a face mask or the like Is preferably 1 to 5, more preferably 1.5 to 3.5, and still more preferably 2 to 3 from the viewpoints of lifting the face and the face line of the human face with a suitable force and maintaining the lifted state.

Nonwoven fabrics that are easy to elongate in one direction of the longitudinal direction and the transverse direction of the nonwoven fabric are commercially available, for example, Daiwabo Polytec Co., Ltd. DFS (SH) R5-50 (longitudinal tensile elongation: 70 ± 25%, transverse tensile elongation: 170 ± 45%), : 80 ± 25%, and tensile elongation in the transverse direction: 170 ± 45%). However, the present invention is not limited to these examples.

The nonwoven fabric is laminated with the film as described above, and the heat-sealable fiber contained in the nonwoven fabric is fusion-bonded with the film. As the film, a film containing a thermoplastic elastomer is used.

In the present invention, a film containing a thermoplastic elastomer is used as the film, and there is one major feature in that the heat-sealable fiber contained in the nonwoven fabric is fusion-bonded with the film. Since the cosmetic sheet of the present invention has the above-described constitution, the stretchability and the followability of the nonwoven fabric and the film are excellent, and the lift-up effect is also excellent.

Examples of the thermoplastic elastomer include polyolefin elastomers such as polyethylene elastomers, polypropylene elastomers, ethylene-propylene elastomers and ethylene-octene elastomers, polyurethane elastomers, polystyrene elastomers, polyester elastomers, polyamide elastomers, vinyl chloride resin elastomers However, the present invention is not limited to these examples. These elastomers may be used alone or in combination of two or more. Among the elastomers, polyolefin elastomers are preferable from the viewpoints of stretchability, nonwoven fabric-to-film conformability and lift-up effect, and polyethylene elastomer, ethylene-propylene elastomer and ethylene-octene elastomer are more preferable, and polyethylene elastomer and More preferred are ethylene-octene elastomers. These polyolefin elastomers may be used alone or in combination.

The film containing the thermoplastic elastomer may be composed only of the thermoplastic elastomer or may be composed of a mixture of the thermoplastic elastomer and the thermoplastic resin.

Examples of the thermoplastic resin include polyethylene such as low density polyethylene, medium density polyethylene and high density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-pentene copolymer, ethylene- Polyolefin-based resins such as butene copolymer, propylene-pentene copolymer, propylene-hexene copolymer, ethylene-vinyl acetate copolymer and ethylene- (meth) acrylic acid copolymer; Styrene-based resins such as polystyrene and acrylonitrile-butadiene-styrene copolymer (ABS resin); Polyamide resins such as 6-nylon, 66-nylon and 12-nylon; Polyamideimide; Polyurethane; Polyimide; Polyetherimide; Acrylic resin; Vinyl chloride resin; Polyester resins such as polyethylene terephthalate and polybutylene terephthalate; And polycarbonate such as bisphenol A-based polycarbonate. However, the present invention is not limited to these examples. These thermoplastic resins may be used alone or in combination of two or more. Among the above thermoplastic resins, polyolefin resins such as polyethylene and polypropylene are preferable, and low-density polyethylene is more preferable from the viewpoint of imparting suitable strength and stretchability to the cosmetic sheet of the present invention.

The content of the thermoplastic elastomer in the film is preferably not less than 10% by mass, more preferably not less than 20% by mass, more preferably not less than 10% by mass, more preferably not less than 20% by mass, , More preferably not less than 30 mass%, still more preferably not less than 40 mass%, and the content of the thermoplastic resin in the film is preferably not more than 90 mass%, more preferably not more than 80 mass% More preferably not more than 70% by mass, still more preferably not more than 60% by mass. The content of the thermoplastic elastomer in the film is preferably 100% by mass or less, more preferably 100% by mass or less from the viewpoint of obtaining excellent stretchability, Is 95 mass% or less, more preferably 90 mass% or less, and the content of the thermoplastic resin in the film is preferably 0 mass% or more, more preferably 5 mass% or more, further preferably 10 mass% to be.

Since the thickness of the film differs depending on the use of the cosmetic sheet of the present invention, it can not be uniformly determined, but from the viewpoint of imparting appropriate strength, flexibility and stretchability to the cosmetic sheet of the present invention, Preferably 3 to 30 占 퐉, and more preferably 5 to 15 占 퐉.

The film can be produced, for example, by a method in which a thermoplastic elastomer as a starting material and, if necessary, a thermoplastic resin are heated and melted and a melt obtained by using a T-die or the like is extrusion-molded.

Examples of the method of laminating the nonwoven fabric and the film include a method (unified extrusion lamination method) of integrating the nonwoven fabric with a film containing the thermoplastic elastomer in a state of being heated and melted immediately after extrusion molding from an extruder or the like; A nonwoven fabric obtained by heating and melting the heat-sealable fibers contained in the nonwoven fabric, and a film in a molten state or a non-molten state, preferably a molten state, are laminated, And the like, but the present invention is not limited to these examples. In the present invention, a part of the fibers constituting the nonwoven fabric is buried in the film to exhibit an embedding effect, and the fibers constituting the nonwoven fabric by the heat of the film are softened or melted and the softened or melted fibers And the other fibers constituting the nonwoven fabric are further welded to each other to firmly bond the fibers and the film to each other. For example, even when the inventive decorative sheet is stretched by 50%, the nonwoven fabric and the film follow, From the viewpoint of obtaining a cosmetic sheet, it is preferable to laminate the nonwoven fabric and the film by integrating the nonwoven fabric with the film containing the thermoplastic elastomer in a state of being heated and melted immediately after extrusion molding from an extruder or the like. When the film and the nonwoven fabric are integrated as described above, the cosmetic sheet of the present invention has an advantage of excellent stretchability and lift-up effect.

Thus, the cosmetic sheet of the present invention is obtained. Since the nonwoven fabric and the film containing the thermoplastic elastomer are fusion-bonded to each other in the cosmetic sheet of the present invention, the nonwoven fabric and the film are hardly peeled off when stretched, and the film containing the thermoplastic elastomer is excellent in stretchability. And has an excellent property that the elongation after 50% elongation is small. Particularly, when the nonwoven fabric and the film are laminated by the extrusion lamination method, the nonwoven fabric and the film can be firmly bonded to each other, so that the nonwoven fabric and the film are more difficult to peel off when stretched, and furthermore the thermoplastic elastomer Is excellent in stretchability, and has excellent properties such that the elongation after stretching by 50% is small.

Since the weight per unit area of the cosmetic sheet of the present invention varies depending on its use and the like, it can not be uniformly determined. However, it is preferable that the cosmetic sheet is excellent in stretchability and followability of the nonwoven fabric and film, , More preferably about 15 to 200 g / m 2, further preferably about 20 to 150 g / m 2, and still more preferably about 25 to 120 g / m 2.

The load at the time of 50% elongation of the cosmetic sheet of the present invention is preferably from 0.75 to 3.5 N / 25 mm, more preferably from 0.75 to 3.5 N / 25 mm, from the viewpoint of obtaining stretchability and excellent followability of the nonwoven fabric and film, More preferably 0.75 to 3 N / 25 mm, still more preferably 0.75 to 2.5 N / 25 mm, still more preferably 0.8 to 2.3 N / 25 mm, still more preferably 0.9 to 2.2 N / 25 mm. The term " N / 25 mm " means the stress required to elongate a sheet having a width of 25 mm by 50% when the sheet is stretched by 150 mm in length, (N). The load at the time of 50% elongation of the cosmetic sheet is a value measured based on the method described in the following examples.

The stretchability of the cosmetic sheet after stretching the cosmetic sheet of the present invention by 50% is preferably 20% or more from the viewpoint of stretchability and excellent followability of the nonwoven fabric and the film, Is preferably 7% or more, more preferably 7.5% or more, and even more preferably 8% or more from the viewpoint of obtaining a cosmetic sheet having an excellent lift-up effect. The elongation percentage of the cosmetic sheet after stretching the cosmetic sheet of the present invention by 50% is a value measured by the method described in the following examples.

The nonwoven fabric of the cosmetic sheet of the present invention may be impregnated with a cosmetic liquid if necessary. The cosmetic liquid includes, for example, a component that imparts flexibility to the skin, a component that imparts moisturizing properties, a nutritional component, and a medicinal component, but the present invention is not limited to these examples. Examples of the form of the cosmetic liquid include an aqueous solution, an emulsion, an oil, and a cream.

Examples of the use of the cosmetic sheet of the present invention include a face mask, a sheet for supplying cosmetics to various parts of the human body, a foot care sheet, a moisturizing sheet, a sheet for foment materials, etc. However, It is not.

As described above, in the cosmetic sheet of the present invention, the nonwoven fabric and the film are laminated, but a nonwoven fabric containing the heat-sealable fiber is used as the nonwoven fabric, a film containing the thermoplastic elastomer is used as the film, Since the fusion-bondable fibers and the film are fused and integrated, a part of the fibers constituting the nonwoven fabric is contained in the film. Therefore, due to the projecting effect of the fibers constituting the nonwoven fabric, Even when the sheet is elongated at 50%, the nonwoven fabric and the film are inferior to each other and peeling is unlikely to occur.

In addition, the cosmetic sheet of the present invention is excellent in stretchability and also has a lift-up effect, so that it can be suitably used, for example, in a face mask.

Example

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

Example 1

(Thermofusible fiber: polyethylene split fiber, content of heat-sealable fiber: 24.5 mass%) composed of 40 mass% of rayon fibers and 60 mass% of a mixture of polyethylene terephthalate (PET) and polyethylene Daiwabo Polytec Co., Ltd. 20% by mass of a low density polyethylene (trade name: Petrothene 212, a product of Tosoh Corporation, trade name: DFS (SH) R5-70, weight per unit area: 70 g / m 2) and an ethylene-octene elastomer [Dupont Performance Elastomers Japan Ltd . Product name: ENGAGE) was extruded and laminated to obtain a cosmetic sheet having a film having a thickness of 12 탆 on the surface of the nonwoven fabric. Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film. This cosmetic sheet was cut to obtain three test pieces (type (flow direction of nonwoven fabric): 25 mm, width: 150: mm).

Next, water having a mass of 10 times the mass of each test piece was impregnated into the test piece, and then the test pieces were immersed in an atmosphere of room temperature (about 23 ° C) using a universal material tester (product of Instron Corporation, Model 5582) Each test piece was stretched under the conditions of a tensile speed of 500 mm / min, the load at the time of 50% elongation of each test piece was measured, and the average value of the load at the time of 50% elongation of the three test pieces was obtained. In addition, the elongation of each test piece was measured at the time when the load of each test piece, at which the load at the time of 50% elongation reached, reached zero, and the elongated length was divided by the original length, % Elongation after elongation was obtained, and the average value of three test pieces was obtained. The results are shown in the column of " elongation after 50% elongation "

Example 2

A cosmetic sheet was produced in the same manner as in Example 1 except that the thickness of the film formed on the surface of the nonwoven fabric was changed to 8 mu m. Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Example 3

A cosmetic sheet was produced in the same manner as in Example 1 except that the thickness of the film formed on the surface of the nonwoven fabric was changed to 6 mu m. Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Example 4

Nonwoven fabric of the same kind as used in Example 1 [Daiwabo Polytec Co., Ltd. 30% by mass of a low density polyethylene (product name: Petrothene 212, a product of Tosoh Corporation) and an ethylene-octene elastomer (Dupont Performance Elastomers Japan Ltd., product name: DFS (SH) R5-70, weight per unit area: 70 g / . Product name: ENGAGE) was extrusion-laminated to obtain a cosmetic sheet on which a film having a thickness of 6 m was formed on the surface of the nonwoven fabric. Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Example 5

Nonwoven fabric of the same kind as used in Example 1 [Daiwabo Polytec Co., Ltd. 40% by mass of a low density polyethylene (product name: Petrothene 212, a product of Tosoh Corporation) and an ethylene-octene elastomer (Dupont Performance Elastomers Japan Ltd .; product name: DFS (SH) R5-70, weight per unit area: 70 g / . Product name: ENGAGE] was extrusion-laminated to obtain a cosmetic sheet on which a film having a thickness of 6 m was formed on the surface of the nonwoven fabric. Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Example 6

Nonwoven fabric of the same kind as used in Example 1 [Daiwabo Polytec Co., Ltd. 20% by mass of a low density polyethylene (product name: Petrothene 212, a product of Tosoh Corporation) and an ethylene-octene elastomer (Dupont Performance Elastomers Japan Ltd. (trade name, product name: DFS (SH) R5-70, weight per unit area: 70 g / . Product name: ENGAGE) was extrusion-laminated to obtain a cosmetic sheet on which a film having a thickness of 5 탆 was formed on the surface of the nonwoven fabric. Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Example 7

In place of the nonwoven fabric used in Example 3, a nonwoven fabric composed of 40% by weight of rayon fibers and 60% by weight of a mixture of polyethylene terephthalate (PET) and polyethylene (PE) Content of staple fibers: 24.5% by mass) [Daiwabo Polytec Co., Ltd. (Product name: DFS (SH) R5-50, weight per unit area: 50 g / m 2). Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Example 8

In place of the nonwoven fabric used in Example 2, a nonwoven fabric composed of 40% by mass of rayon fibers and 60% by mass of a mixture of polyethylene terephthalate (PET) and polyethylene (PE) Content of staple fibers: 24.5% by mass) [Daiwabo Polytec Co., Ltd. (Product name: DFS (SH) R5-50, weight per unit area: 50 g / m 2). Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Example 9

A cosmetic sheet was produced in the same manner as in Example 1 except that the thickness of the film formed on the surface of the nonwoven fabric was changed to 20 mu m. Observation of the obtained cosmetic sheet confirmed that some of the fibers constituting the nonwoven fabric of the cosmetic sheet were integrated with the film.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Comparative Example 1

(Manufactured by Daiwabo Polytec Co., Ltd.) composed of 40% by mass of rayon fibers and 60% by mass of heat-sealable fibers made of polyethylene terephthalate (PET) and polyethylene (PE) as nonwoven fabrics. Product name: DFS (SH) R5-70, weight per unit area: 70 g / m 2] was used as a cosmetic sheet.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Comparative Example 2

(Manufactured by Daiwabo Polytec Co., Ltd.) composed of 40% by mass of rayon fibers and 60% by mass of heat-sealable fibers made of polyethylene terephthalate (PET) and polyethylene (PE) as nonwoven fabrics. Product name: DFS (SH) R5-50, weight per unit area: 50 g / m 2] was used as a cosmetic sheet.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Comparative Example 3

(Weight per unit area: 40 g / m 2, content of heat-sealable fibers: 0 mass%) containing 50% by mass of cellulose fibers (trade name: TENCEL) and 50% by mass of polyester fibers as a conventional cosmetic sheet, A film made of a urethane resin having a thickness of 30 占 퐉 on one surface thereof was placed and heat-pressed with fine dots to obtain a cosmetic sheet.

Next, three pieces of test pieces were prepared in the same manner as in Example 1 using the above-obtained cosmetic sheet, and the average value of the load at the time of 50% elongation of the test piece and the elongation percentage after elongation at 50% Method. The results are shown in Table 1.

Next, the followability and the lift-up effect of the nonwoven fabric and the film as the physical properties of the decorative sheet obtained in each of the Examples and Comparative Examples were investigated based on the following methods. The results are shown in Table 1.

[Follow-up]

Whether or not there was any change in the test pieces before and after 50% elongation of the test pieces made of the cosmetic sheets obtained in the respective Examples or Comparative Examples was visually observed and evaluated according to the following evaluation criteria.

(Evaluation standard)

?: No peeling between the nonwoven fabric constituting the test piece and the film, and no change in the makeup sheet before and after stretching by 50% was confirmed.

X: Changes in the cosmetic sheet before and after 50% elongation such as peeling between the nonwoven fabric constituting the test piece and the film were confirmed, or no film was used for the cosmetic sheet.

[Lift-up effect]

By using the cosmetic sheet obtained in each of the Examples or Comparative Examples, the decorative sheet was punched based on the base material of Example 1 of Japanese Patent No. 3866555, as shown in Fig. 1 of the above publication , Two grip portions (6) are formed on the outer circumferential edge, incisions are formed at a plurality of positions from the outer circumferential edge, incisions are formed in the portions corresponding to the eyes and nose, and openings are formed in the portions corresponding to the mouth A mask was produced.

Next, 10 panelists were put on the face of a face mask produced using the cosmetic sheet obtained in each of the Examples and Comparative Examples, and evaluated based on the following evaluation criteria.

(Evaluation standard)

A: It is felt that 9 to 10 out of 10 panelists are moving (lifting up) the ball portion of the face toward the ear portion by attaching the face mask to the face.

?: 7 to 8 out of 10 panelists feel that the face of the face is moved (lifted up) toward the ear portion by attaching the face mask to the face.

X: It is felt that the face of the face is moved (lift-up) toward the ear portion by attaching the face mask to the face of less than 6 out of 10 panelists.

From the results shown in Table 1, all of the cosmetic sheets obtained in the respective Examples were excellent in stretchability because the elongation percentage after stretching by 50% was smaller than those of the cosmetic sheets obtained in Comparative Examples, and the followability of the nonwoven fabric and the film was excellent And also has a load at a proper 50% elongation, and has an excellent lift-up effect.

Example 10

Using the cosmetic sheet obtained in Example 3, a face mask was produced on the basis of the method described in the above " lift-up effect ".

The face mask (mass: 2.08 g) obtained above was impregnated with a cosmetic liquid having a mass of 10 times the mass of the nonwoven fabric used for the face mask, and the mass of the face mask was 20.51 g (the impregnation amount of the cosmetic liquid : 18.43 g).

Next, the face mask impregnated with the cosmetic liquid was placed on the face of the panelist for 20 minutes, and then the mass of the face mask was measured again. Since the mass of the face mask was 17.93 g, 2.58 g of water in the cosmetic liquid (amount of evaporation of water: 2.58 g) was confirmed.

From the above results, it can be seen that the rate of water evaporation by mounting the face mask is expressed by the formula:

[Percentage of water evaporation (%)] = {[Increase in water content] / [Impregnation amount of cosmetic liquid]} × 100

, The rate of water evaporation was 14.0% by mass.

Comparative Example 4

Using the cosmetic sheet obtained in Comparative Example 1, a face mask was produced in the same manner as in Example 10. [

The face mask (mass: 2.17 g) obtained above was impregnated with a cosmetic liquid having a mass of 10 times the mass of the nonwoven fabric used in the face mask, and the mass of the face mask was 22.41 g (the impregnation amount of the cosmetic liquid : 20.24 g).

Next, the face mask impregnated with the cosmetic liquid was put on the face of the panelist for 20 minutes in the same manner as in Example 10, and then the mass of the face mask was measured again. Since the mass of the face mask was 16.90 g, It was confirmed that 5.51 g of water was added (amount of water evaporation: 5.51 g) while wearing the face mask.

The rate of water evaporation by mounting the face mask was determined in the same manner as in Example 10, and the water evaporation rate was 27.2% by mass.

From the results of Example 10 and Comparative Example 4, it can be seen that the face mask obtained in Example 10 is superior in moisture retention (water retention) because the rate of water evaporation is extremely low as compared with the face mask obtained in Comparative Example 4 have.

(Industrial availability)

The cosmetic sheet of the present invention can be suitably used for, for example, a face mask, a foot care sheet, a moisturizing sheet, and the like because it is excellent in stretchability and followability of the nonwoven fabric and film, and also has a superior lift-up effect.

Claims (4)

A cosmetic sheet comprising a nonwoven fabric and a film laminated thereon,
A nonwoven fabric containing thermally fusible fibers as the nonwoven fabric, a tensile elongation in the transverse direction of 120 to 220% and a tensile elongation in the longitudinal direction of 40 to 110% is used, and a film containing the thermoplastic elastomer is used as the film , And the heat-sealable fiber contained in the nonwoven fabric and the film are fused and integrated. The method according to claim 1,
And a load at 50% elongation is 0.75 to 3.5 N / 25 mm. 3. The method according to claim 1 or 2,
And an elongation after stretching by 50% is 20% or less. 3. The method according to claim 1 or 2,
Wherein the nonwoven fabric is a nonwoven fabric having a ratio of a tensile elongation in the transverse direction and a tensile elongation in the longitudinal direction (transverse elongation / longitudinal elongation) of 1.5 to 3.5.