CN106455794B - Cosmetic sheet - Google Patents

Cosmetic sheet Download PDF

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Publication number
CN106455794B
CN106455794B CN201580023463.2A CN201580023463A CN106455794B CN 106455794 B CN106455794 B CN 106455794B CN 201580023463 A CN201580023463 A CN 201580023463A CN 106455794 B CN106455794 B CN 106455794B
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China
Prior art keywords
nonwoven fabric
cosmetic sheet
film
elongation
fiber
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CN201580023463.2A
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Chinese (zh)
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CN106455794A (en
Inventor
原悠佳
山下晴香
早川真希
久山贞迪
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Taiki Corp Ltd
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Taiki Corp Ltd
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/22—Face shaping devices, e.g. chin straps; Wrinkle removers, e.g. stretching the skin
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/002—Masks for cosmetic treatment of the face
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0212—Face masks
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/10—Details of applicators
    • A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
    • A45D2200/1036—Applicators comprising a pad, tissue, sponge, or the like containing a cosmetic substance, e.g. impregnated with liquid or containing a soluble solid substance

Abstract

The present invention provides a cosmetic sheet which is excellent in stretchability and followability between a nonwoven fabric and a film, and is excellent in a lifting effect, and can be suitably used for a mask sheet, a foot care sheet, a moisturizing sheet, and the like. A cosmetic sheet obtained by laminating a nonwoven fabric and a film, characterized in that the nonwoven fabric is a nonwoven fabric containing a hot-melt adhesive fiber, the film is a film containing a thermoplastic elastomer, and the hot-melt adhesive fiber and the film contained in the nonwoven fabric are integrated by melt-adhesion.

Description

Cosmetic sheet
Technical Field
The present invention relates to a cosmetic sheet. More specifically, the present invention relates to a cosmetic sheet that can be suitably used for, for example, a mask, a foot care sheet, a moisturizing sheet, and the like.
Background
In recent years, as a face mask, a face mask obtained by laminating and dot-bonding a liquid-impregnated base material containing a cosmetic liquid and a liquid-blocking film has been proposed, in which the liquid-impregnated base material containing a cosmetic liquid is easily developed, separation and detachment of the cosmetic liquid from the liquid-impregnated base material are suppressed, and evaporation of an active ingredient is suppressed (see, for example, paragraphs [0008] to [0009] of patent document 1). As the substrate used in the mask, a nonwoven fabric made of rayon, cotton, polyester fiber, or the like can be used. The nonwoven fabric can be melt-bonded to the liquid barrier film by incorporating a hot-melt adhesive fiber into the nonwoven fabric or by attaching a hot-melt adhesive to the nonwoven fabric (see, for example, paragraph [0014] of patent document 1). Further, as a face mask that prevents evaporation of moisture and has a moist feel, a face mask in which a cotton nonwoven fabric and a polyethylene resin film are integrated has been proposed (see, for example, paragraph [ claim 1] of patent document 2).
However, since the face mask and the face mask have small stretchability and, for example, after stretching 50%, there is a possibility that the nonwoven fabric and the mask do not follow each other and peel off, in recent years, there has been a demand for development of a cosmetic sheet which is excellent in stretchability and followability between the nonwoven fabric and the mask, is excellent in a further lifting effect (an effect of lifting the cheek portion and the face contour line of a human face when the face mask is applied to the face), and can be suitably used for, for example, the face mask.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 3866555
Patent document 2: japanese utility model registration No. 3080940
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made in view of the above-mentioned conventional techniques, and an object thereof is to provide a cosmetic sheet which is excellent in stretchability and followability between a nonwoven fabric and a film, and is excellent in a pulling effect, and which can be suitably used for a mask sheet, a foot care sheet, a moisture-retaining sheet, and the like.
Means for solving the problems
The present invention relates to the following:
(1) a cosmetic sheet comprising a nonwoven fabric and a film laminated thereon, characterized in that the nonwoven fabric is a nonwoven fabric comprising a hot-melt adhesive fiber, the film is a film comprising a thermoplastic elastomer, and the hot-melt adhesive fiber and the film contained in the nonwoven fabric are integrated by melt-adhesion;
(2) the cosmetic sheet according to the above (1), wherein the load at 50% elongation is 0.75 to 3.5N/25 mm; and
(3) the cosmetic sheet according to (1) or (2), wherein the cosmetic sheet has an elongation of 20% or less after 50% elongation.
Effects of the invention
The present invention can provide a cosmetic sheet which is excellent in stretchability and conformability between a nonwoven fabric and a film, has an excellent pulling effect, and can be suitably used for a mask sheet, a foot care sheet, a moisturizing sheet, and the like.
Detailed Description
As described above, the cosmetic sheet of the present invention is a cosmetic sheet obtained by laminating a nonwoven fabric and a film, and is characterized in that the nonwoven fabric containing a hot-melt adhesive fiber is used as the nonwoven fabric, the film containing a thermoplastic elastomer is used as the film, and the hot-melt adhesive fiber contained in the nonwoven fabric and the film are melt-bonded and integrated.
The cosmetic sheet of the present invention has the above-described structure, and therefore, is excellent in stretchability and followability between a nonwoven fabric and a film, and is also excellent in a pulling effect, and can be suitably used for a mask sheet, a foot care sheet, a moisturizing sheet, and the like. Further, the cosmetic sheet of the present invention has a load at 50% elongation of 0.75 to 3.5N/25mm, preferably 0.75 to 3N/25mm, and more preferably 0.75 to 2.5N/25mm, and when the cosmetic sheet of the present invention is used for a face mask or the like, for example, there is an advantage that the cheek portion and the face contour of the human face can be pulled up with an appropriate force. When the cosmetic sheet of the present invention is used for a face mask or the like, for example, when the elongation after stretching the sheet by 50% is 20% or less, there is an advantage that the face of a person can be kept pulled along the cheek portion and the face contour line.
The fibers constituting the nonwoven fabric are hot-melt fibers, but may contain non-hot-melt fibers within a range not to impair the object of the present invention.
Examples of the hot melt adhesive fiber include polyolefin fibers such as polyethylene fibers and polypropylene fibers; polyester fibers such as polyethylene terephthalate fibers; polyamide fibers represented by various nylons; polyacrylonitrile-based fibers, ethylene-vinyl acetate fibers, vinyl acetate-vinyl chloride fibers, polyester-based composite fibers, polyester-polyolefin-based composite fibers, polyester-polyamide-based composite fibers, polyamide-based composite fibers, and the like, but the present invention is not limited to these examples. These hot-melt adhesive fibers may be used alone or in combination of 2 or more. Examples of the composite fiber include a core-sheath composite fiber and a side-by-side composite fiber, but the present invention is not limited to these examples.
Examples of the non-heat-fusible fibers include rayon fibers, cotton, pulp, hemp, aramid fibers, phenol fibers, carbon fibers, ceramic fibers, and metal fibers, but the present invention is not limited to these examples. These non-heat-fusible fibers may be used alone or in combination of 2 or more. Among these non-heat-fusible fibers, rayon fibers, cotton and pulp are preferable, rayon fibers and cotton are more preferable, and rayon fibers are even more preferable, from the viewpoint of imparting appropriate strength and stretchability to the cosmetic sheet of the present invention.
From the viewpoint of firmly melt-bonding and integrating the nonwoven fabric and the film, the content of the hot-melt adhesive fibers in the nonwoven fabric is preferably 10 mass% or more, more preferably 15 mass% or more, and still more preferably 20 mass% or more, and the upper limit thereof is 100 mass%.
The fiber length and fineness of the fibers constituting the nonwoven fabric are not particularly limited, and usually the fiber length is preferably about 20 to 100mm, more preferably about 40 to 80mm, and the fineness is preferably about 1 to 30 deniers, more preferably about 3 to 10 deniers. The fibers constituting the nonwoven fabric may contain short fibers, for example, short fibers having a fiber length of preferably about 0.5 to 20mm, more preferably about 1 to 15mm, within a range not to impair the object of the present invention.
The basis weight of the nonwoven fabric varies depending on the use of the cosmetic sheet of the present invention, and therefore cannot be said to be the same, but the basis weight of the nonwoven fabric is preferably 5 to 200g/m from the viewpoint of imparting appropriate strength and stretchability to the cosmetic sheet of the present invention2More preferably 10 to 180g/m2More preferably 20 to 150g/m2More preferably 30 to 100g/m2。
Examples of the method for producing the nonwoven fabric include needle punching, water jet interlacing, spunbonding, melt blowing, wet papermaking, and high-pressure steam interlacing, but the present invention is not limited to these examples.
When the cosmetic sheet of the present invention is used, for example, in a face mask, the nonwoven fabric is preferably one that is easily stretchable in one direction, from the viewpoint of pulling the cheek portion and the face contour of a human face with an appropriate force while maintaining the pulled state.
The direction of elongation of the nonwoven fabric typically has a machine direction and a cross-machine direction. Generally, the longitudinal direction in which a nonwoven fabric is elongated refers to the flow direction of the nonwoven fabric when the nonwoven fabric is manufactured, and the transverse direction in which the nonwoven fabric is elongated refers to the direction perpendicular to the flow direction of the nonwoven fabric. When the nonwoven fabric is used, for example, in a face mask, it is preferable to use a nonwoven fabric that is easily stretchable in one direction and is used in such a manner that the transverse direction of the nonwoven fabric is the same as the transverse direction of the human face, from the viewpoint of pulling the cheek portion and the face contour line of the human face with an appropriate force while maintaining the pulled state.
When the cosmetic sheet of the present invention is used, for example, in a face mask, the nonwoven fabric preferably has a longitudinal tensile elongation of 40 to 110% (longitudinal direction) and a transverse tensile elongation of 120 to 220% (transverse direction), more preferably 45 to 105% (longitudinal direction) and 125 to 215% (transverse direction), respectively, from the viewpoint of pulling the cheek and face contour of a human face with an appropriate force while maintaining the pulled state.
The tensile elongation of the nonwoven fabric was determined according to JIS L1913 (2010) "6.3.1". More specifically, the longitudinal and transverse tensile elongations of the nonwoven fabric were the following values, 3 test pieces of a rectangular shape of 50mm × 150mm were cut out from the nonwoven fabric, the initial length of the test piece (the length of the test piece) was set to 100mm in a tensile testing machine, the elongation at the time of cutting the test piece was measured at a tensile speed of 300mm/min, the tensile elongation (the ratio of the elongation length to the original length) was determined, and the average value of the tensile elongations of the 3 test pieces was taken as the tensile elongation of the nonwoven fabric, and the values at the time of the longitudinal and transverse tensile elongations of the nonwoven fabric were determined.
In addition, when the cosmetic sheet of the present invention is used, for example, in a face mask, the ratio of the tensile elongation in the transverse direction to the tensile elongation in the longitudinal direction (the tensile elongation in the transverse direction/the tensile elongation in the longitudinal direction) of the nonwoven fabric is preferably 1 to 5, more preferably 1.5 to 3.5, and still more preferably 2 to 3, from the viewpoint of pulling up the cheek portion and the face contour of a human face with an appropriate force while maintaining the pulled-up state.
A nonwoven fabric which is easily elongated in one of the longitudinal direction and the transverse direction of the nonwoven fabric is commercially available, and examples thereof include a model made by Daiwabo Polytec: DFS (SH) R5-50 (tensile elongation in machine direction: 70. + -. 25%, tensile elongation in transverse direction: 170. + -. 45%), type: DFS (SH) R5-70 (tensile elongation in machine direction: 80. + -. 25%, tensile elongation in transverse direction: 170. + -. 45%), etc., but the present invention is not limited to these examples.
As described above, the nonwoven fabric and the film are laminated, and the hot-melt adhesive fibers and the film contained in the nonwoven fabric are melt-bonded and integrated. 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 the hot-melt adhesive fibers contained in the nonwoven fabric and the film are melt-bonded and integrated. The cosmetic sheet of the present invention has the above-described structure, and therefore has excellent stretchability and conformability between the nonwoven fabric and the film, and also has an excellent pulling effect.
Examples of the thermoplastic elastomer include polyolefin elastomers such as polyethylene elastomers, polypropylene elastomers, ethylene-propylene elastomers, and ethylene-octene elastomers; a polyurethane elastomer; a polystyrene elastomer; a polyester elastomer; a polyamide elastomer; vinyl chloride resin elastomers, etc., but the present invention is not limited to these examples. These elastomers may be used alone, or 2 or more kinds thereof may be used in combination. Among the elastomers, polyolefin elastomers are preferable, polyethylene elastomers, ethylene-propylene elastomers and ethylene-octene elastomers are more preferable, and polyethylene elastomers and ethylene-octene elastomers are even more preferable, from the viewpoint of obtaining a cosmetic sheet excellent in stretchability, non-woven fabric-film conformability and pulling effect. These polyolefin elastomers may be used alone or in combination.
The film containing a thermoplastic elastomer may be composed of only a thermoplastic elastomer or may be composed of a mixture of a thermoplastic elastomer and a thermoplastic resin.
Examples of the thermoplastic resin include polyolefin resins such as polyethylene, e.g., low-density polyethylene, medium-density polyethylene, and high-density polyethylene, polypropylene, ethylene-propylene copolymers, ethylene-butene copolymers, ethylene-pentene copolymers, ethylene-hexene copolymers, propylene-butene copolymers, propylene-pentene copolymers, propylene-hexene copolymers, ethylene-vinyl acetate copolymers, and ethylene- (meth) acrylic acid copolymers; styrene resins such as polystyrene and acrylonitrile-butadiene-styrene copolymer (ABS resin); polyamide resins such as 6-nylon, 66-nylon and 12-nylon; a polyamide-imide; a polyurethane; a polyimide; a polyetherimide; an acrylic resin; vinyl chloride resin; polyester resins such as polyethylene terephthalate and polybutylene terephthalate; polycarbonate such as bisphenol a polycarbonate, but the present invention is not limited to these examples. These thermoplastic resins may be used alone or in combination of 2 or more. Among the thermoplastic resins, polyolefin resins such as polyethylene and polypropylene are preferable, and low-density polyethylene is more preferable, from the viewpoint of imparting appropriate strength and stretchability to the cosmetic sheet of the present invention.
From the viewpoint of obtaining a cosmetic sheet excellent in stretchability, follow-up properties between a nonwoven fabric and a film, and also excellent in a pulling effect, the content of the thermoplastic elastomer in the film is preferably 10% by mass or more, more preferably 20% by mass or more, further preferably 30% by mass or more, and further more preferably 40% by mass or more, and the content of the thermoplastic resin in the film is preferably 90% by mass or less, more preferably 80% by mass or less, further preferably 70% by mass or less, and further more preferably 60% by mass or less. In addition, from the viewpoint of obtaining a cosmetic sheet excellent in stretchability, follow-up properties between a nonwoven fabric and a film, and also excellent in a pulling effect, the content of the thermoplastic elastomer in the film is preferably 100% by mass or less, more preferably 95% by mass or less, and still more preferably 90% by mass or less, and the content of the thermoplastic resin in the film is preferably 0% by mass or more, more preferably 5% by mass or more, and still more preferably 10% by mass or more.
The thickness of the film varies depending on the use of the cosmetic sheet of the present invention, and therefore cannot be said to be all together, and is preferably 1 to 50 μm, more preferably 3 to 30 μm, and even more preferably 5 to 15 μm, from the viewpoint of imparting appropriate strength, flexibility, and stretchability to the cosmetic sheet of the present invention.
The membrane can be manufactured by the following method: for example, a method of heating and melting a thermoplastic elastomer and, if necessary, a thermoplastic resin as raw materials, and extruding and molding the obtained melt using a T die or the like.
Examples of a method for laminating a nonwoven fabric and a film include the following methods: for example, a method in which a thermoplastic elastomer in a state of being heated and melted is incorporated into a nonwoven fabric immediately after extrusion molding from an extruder or the like (extrusion lamination method); a method of separately producing a nonwoven fabric and a film containing a thermoplastic elastomer, and laminating the nonwoven fabric in which the hot-melt adhesive fibers contained in the nonwoven fabric are heated and melted and the film in a molten state or an unmelted state, preferably a molten state, and then pressure-bonding the two to integrate them, and the like, but the present invention is not limited to these examples. In the present invention, the anchor effect is exhibited by embedding a part of the fibers constituting the nonwoven fabric in the film, and the fibers constituting the nonwoven fabric are softened or melted by the heat of the film, and the softened or melted fibers are further melt-bonded to other fibers constituting the nonwoven fabric, whereby the fibers and the film are firmly bonded, whereby, for example, even when the cosmetic sheet of the present invention is elongated by 50%, the nonwoven fabric and the film of the obtained cosmetic sheet follow each other and are less likely to peel off, and from this viewpoint, it is preferable that, for example, immediately after extrusion molding from an extruder or the like, the nonwoven fabric and the film are laminated by integrating the film containing the thermoplastic elastomer in a state of being heated and melted with the nonwoven fabric. When the film and the nonwoven fabric are integrated in this manner, the cosmetic sheet of the present invention has advantages of excellent stretchability and lifting effect.
As described above, the cosmetic sheet of the present invention can be obtained. The cosmetic sheet of the present invention has excellent properties such as excellent stretchability and small elongation after 50% elongation because the nonwoven fabric and the film containing the thermoplastic elastomer are melt-bonded and integrated, and therefore the nonwoven fabric and the film are less likely to separate when stretched, and the film containing the thermoplastic elastomer is excellent in stretchability. In particular, when a nonwoven fabric and a film are laminated by an extrusion lamination method, the nonwoven fabric and the film can be firmly bonded to each other, and therefore, the nonwoven fabric and the film are more difficult to peel off when the cosmetic sheet of the present invention is stretched, and the film containing a thermoplastic elastomer is excellent in stretchability, and therefore has excellent properties such as excellent stretchability and small elongation after 50% elongation.
The basis weight of the cosmetic sheet of the present invention varies depending on the application and the like, and therefore, from the viewpoint of obtaining a cosmetic sheet excellent in stretchability, followability between a nonwoven fabric and a film, and excellent in pulling effect, the basis weight of the cosmetic sheet of the present invention is preferably 10 to 250g/m2More preferably 15 to 200g/m2More preferably 20 to 150g/m2More preferably 25 to 120g/m2To the extent of (c).
The cosmetic sheet of the present invention has a load at 50% elongation of preferably 0.75 to 3.5N/25mm, more preferably 0.75 to 3N/25mm, even more preferably 0.75 to 2.5N/25mm, even more preferably 0.8 to 2.3N/25mm, even more preferably 0.9 to 2.2N/25mm, from the viewpoint of obtaining a cosmetic sheet having excellent stretchability, excellent non-woven fabric/film following properties, and also excellent pulling effect. The "cosmetic sheet is stretched by 50%" means "a sheet having a length of 100mm is stretched to 150 mm", and the unit "N/25 mm" means the stress (N) required to stretch a sheet having a width of 25mm by 50%. The load when the cosmetic sheet is stretched by 50% is a value measured by the method described in the following examples.
The elongation of the cosmetic sheet obtained by stretching the cosmetic sheet of the present invention by 50% is preferably 20% or less, more preferably 15% or less, from the viewpoint of obtaining a cosmetic sheet excellent in stretchability and followability between a nonwoven fabric and a film, and also excellent in pulling-up effect, and is preferably 7% or more, more preferably 7.5% or more, and further preferably 8% or more from the viewpoint of obtaining a cosmetic sheet excellent in pulling-up effect. The elongation of the cosmetic sheet of the present invention after being stretched 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 as needed. Examples of the cosmetic liquid include components for imparting softness to skin, components for imparting moisture retention, nutritional components, and medicinal components, 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 sheet for supplying cosmetics to various positions of the human body, such as a face mask, a foot care sheet, a moisturizing sheet, and a sheet for a wet cloth.
As described above, the cosmetic sheet of the present invention is obtained by laminating a nonwoven fabric and a film, using the nonwoven fabric containing a hot-melt adhesive fiber as the nonwoven fabric, using the film containing a thermoplastic elastomer as the film, and melt-bonding the hot-melt adhesive fiber and the film contained in the nonwoven fabric, so that a part of the fiber constituting the nonwoven fabric is contained in the film, and it is known that the nonwoven fabric and the film are hardly peeled off due to the anchor effect of the fiber constituting the nonwoven fabric, for example, even when the cosmetic sheet of the present invention is elongated by 50%.
Further, the cosmetic sheet of the present invention is excellent in stretchability and also in a lifting effect, and therefore can be suitably used for a face mask, for example.
Examples
Next, the present invention will be described in further detail with reference to examples, but the present invention is not limited to these examples.
Example 1
A polyethylene film obtained from low density polyethylene [ TOSOH (ltd.) under the trade name: petrocene212]20% by mass, and an ethylene-octene elastomer [ manufactured by dupont elastomer japan, trade name: engage]A resin component of 80 mass% was extrusion-laminated on a nonwoven fabric composed of 40 mass% of rayon fiber and 60 mass% of a mixture of polyethylene terephthalate (PET) and Polyethylene (PE) (hot melt adhesive fiber: split fiber of polyethylene, content of hot melt adhesive fiber: 24.5 mass%) [ product name manufactured by Daiwabo Polytec (ltd.): DFS (SH) R5-70, basis weight: 70g/m2]Thereby obtaining a cosmetic sheet having a film with a thickness of 12 μm formed on the surface of the nonwoven fabric. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film. The cosmetic sheet was cut to obtain 3 test pieces [ longitudinal (flow direction of nonwoven fabric): 25mm, width 150: mm is]。
Next, after water was infiltrated into the test piece in an amount of 10 times the mass of the test piece, the test piece was stretched under conditions of a chuck width of 100mm and a tensile speed of 500mm/min in an atmosphere of room temperature (about 23 ℃) by using a universal testing machine (model 5582 manufactured by INSTRON), and the load at 50% elongation of each test piece was measured to obtain the average value of the load at 50% elongation of 3 test pieces. Further, at the time when the load of each test piece after the measurement of the load at 50% elongation in the above-mentioned manner reached zero, the elongation of each test piece was measured, the length of elongation was divided by the original length, and the value was multiplied by 100 times to obtain the elongation after 50% elongation, and the average value of 3 test pieces was obtained. The results are shown in Table 1 in the column "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 μm in example 1. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. 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 μm in example 1. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Example 4
A polyethylene film obtained from low density polyethylene [ TOSOH (ltd.) under the trade name: petrocene212]30% by mass, and an ethylene-octene elastomer [ manufactured by dupont elastomer japan, trade name: engage]A resin component constituting 70 mass% was extrusion-laminated on a nonwoven fabric of the same kind as the nonwoven fabric used in example 1 [ manufactured by Daiwabo Polytec, trade name: DFS (SH) R5-70, basis weight: 70g/m2]Thereby obtaining a cosmetic sheet having a film with a thickness of 6 μm formed on the surface of the nonwoven fabric. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Example 5
A polyethylene film obtained from low density polyethylene [ TOSOH (ltd.) under the trade name: petrocene212]40% by mass, and an ethylene-octene elastomer [ manufactured by Dupont elastomer Japan, trade name: engage]60% by mass of a resin component was extrusion-laminated to example 1The nonwoven fabrics used in (1) were similar in type [ product name: DFS (SH) R5-70, basis weight: 70g/m2]Thereby obtaining a cosmetic sheet having a film with a thickness of 6 μm formed on the surface of the nonwoven fabric. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Example 6
A polyethylene film obtained from low density polyethylene [ TOSOH (ltd.) under the trade name: petrocene212]20% by mass, and an ethylene-octene elastomer [ manufactured by dupont elastomer japan, trade name: engage]A resin component constituting 80 mass% was extrusion-laminated on a nonwoven fabric of the same kind as the nonwoven fabric used in example 1 [ manufactured by Daiwabo Polytec, trade name: DFS (SH) R5-70, basis weight: 70g/m2]Thereby obtaining a cosmetic sheet having a film with a thickness of 5 μm formed on the surface of the nonwoven fabric. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Example 7
A nonwoven fabric composed of 40 mass% of rayon fiber and 60 mass% of a mixture of polyethylene terephthalate (PET) and Polyethylene (PE) (hot melt adhesive fiber: polyethylene split fiber, content of hot melt adhesive fiber: 24.5 mass%) [ manufactured by Daiwabo Polytec, trade name: DFS (SH) R5-50, basis weight: 50g/m2]The same procedures as in example 3 were repeated except that the nonwoven fabric used in example 3 was replaced with the nonwoven fabric to obtainTo make-up sheets. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Example 8
A nonwoven fabric composed of 40 mass% of rayon fiber and 60 mass% of a mixture of polyethylene terephthalate (PET) and Polyethylene (PE) (hot melt adhesive fiber: polyethylene split fiber, content of hot melt adhesive fiber: 24.5 mass%) [ manufactured by Daiwabo Polytec, trade name: DFS (SH) R5-50, basis weight: 50g/m2]A cosmetic sheet was obtained in the same manner as in example 2, except that the nonwoven fabric used in example 2 was replaced. The obtained cosmetic sheet was observed, and it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. 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 film thickness formed on the surface of the nonwoven fabric was changed to 20 μm in example 1. The obtained cosmetic sheet was observed, and as a result, it was confirmed that a part of the fibers of the nonwoven fabric constituting the cosmetic sheet was integrated with the film.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Comparative example 1
A nonwoven fabric composed of 40 mass% of rayon fiber and 60 mass% of hot melt adhesive fiber composed of polyethylene terephthalate (PET) and Polyethylene (PE) (manufactured by Daiwabo Polytec, trade name: DFS (SH) R5-70, basis weight: 70g/m2]Can be made into cosmetic sheet as non-woven fabric.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Comparative example 2
A nonwoven fabric composed of 40 mass% of rayon fiber and 60 mass% of hot melt adhesive fiber composed of polyethylene terephthalate (PET) and Polyethylene (PE) (manufactured by Daiwabo Polytec, trade name: DFS (SH) R5-50, basis weight: 50g/m2]Can be made into cosmetic sheet as non-woven fabric.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Comparative example 3
A conventional cosmetic sheet was prepared by bonding a nonwoven fabric (basis weight: 40 g/m) containing 50 mass% of cellulose fibers (product of Courtaulds, trade name: Tencel) and 50 mass% of polyester fibers to a nonwoven fabric2Content of hot-melt adhesive fiber: 0 mass%) was placed on one surface of the sheet, and a film made of a urethane resin having a thickness of 30 μm was thermally pressed by fine dots to obtain a cosmetic sheet.
Next, using the cosmetic sheet obtained above, 3 test pieces were prepared in the same manner as in example 1, and the average value of the load when the test piece was elongated by 50% and the average value of the elongation after elongation by 50% were determined in the same manner as in example 1. The results are shown in Table 1.
Next, as physical properties of the cosmetic sheets obtained in the examples and comparative examples, followability between the nonwoven fabric and the film and a pulling effect were examined based on the following methods. The results are shown in Table 1.
[ follow-up property ]
With respect to the test pieces produced from the cosmetic sheets obtained in each example or each comparative example, the presence or absence of a change in the test pieces before and after 50% elongation was visually observed, and evaluation was performed based on the following evaluation criteria.
(evaluation criteria)
○ No separation between the nonwoven fabric and the film constituting the test piece was observed, and no change was observed in the cosmetic sheet before and after 50% elongation.
X: the cosmetic sheet before and after 50% elongation showed changes such as peeling between the nonwoven fabric and the film constituting the test piece, or the cosmetic sheet did not use the film.
[ lifting Effect ]
By punching the cosmetic sheet obtained in each example or each comparative example based on the description of example 1 of japanese patent No. 3866555, a mask was produced as described in fig. 1 of the publication, wherein 2 grip portions 6 were provided on the outer peripheral edge, a plurality of notches were provided from the outer peripheral edge, notches were also formed at positions corresponding to the eyes and the nose, and openings were formed at positions corresponding to the mouths.
Next, facial masks prepared using the cosmetic sheets obtained in each example and each comparative example were applied to the faces of 10 panelists, and evaluated based on the following evaluation criteria.
(evaluation criteria)
○: 9 to 10 panelists felt that the cheek of the face was moved (pulled) to the ear by applying the face mask to the face.
△ in 10 panelists, 7 to 8 panelists felt that the cheek of the face was moved (pulled) to the ear by applying the face mask to the face.
X: among 10 panelists, 6 or less applied the face mask to the face to feel that the cheek portion of the face moves (pulls) toward the ear.
[ Table 1]
Figure BDA0001145126350000121
As is clear from the results shown in table 1, the cosmetic sheets obtained in the examples each had a smaller elongation after 50% elongation than the cosmetic sheets obtained in the comparative examples, and therefore had excellent stretchability, excellent followability between the nonwoven fabric and the film, and had a moderate load at 50% elongation, and also had excellent pulling effect.
Example 10
Using the cosmetic sheet obtained in example 3, a facial mask was produced based on the method described in the "lifting effect".
The obtained facial mask (mass: 2.08g) was soaked in a cosmetic solution in an amount 10 times the mass of the nonwoven fabric used in the facial mask, and as a result, the facial mask mass was 20.51g (impregnation amount of cosmetic solution: 18.43 g).
Subsequently, since the facial mask containing the above-mentioned cosmetic liquid was applied to the face of the panelist for 20 minutes and then the mass of the facial mask was measured again, it was confirmed that 2.58g of water in the cosmetic liquid had evaporated during the application of the facial mask (amount of water evaporated: 2.58 g).
From the above results, based on the formula:
[ water evaporation rate (%) ] { [ water evaporation amount ]/[ impregnation amount of cosmetic liquid ] } × 100
The water evaporation rate due to the application film was determined, and the water evaporation rate was 14.0 mass%.
Comparative example 4
A mask was prepared in the same manner as in example 10 using the cosmetic sheet obtained in comparative example 1.
The obtained facial mask (mass: 2.17g) was soaked with a cosmetic solution in an amount 10 times the mass of the nonwoven fabric used in the facial mask, and as a result, the facial mask mass was 22.41g (impregnation amount of cosmetic solution: 20.24 g).
Subsequently, as in example 10, the facial mask containing the above-mentioned cosmetic liquid was applied to the face of the panelist for 20 minutes, and then the mass of the facial mask was measured again, and as a result, it was found that 5.51g of water was evaporated during the application of the facial mask (amount of water evaporated: 5.51 g).
The water evaporation rate due to the above-mentioned mask was determined in the same manner as in example 10, and the water evaporation rate was 27.2 mass%.
From the results of example 10 and comparative example 4, it is understood that the mask pack obtained in example 10 is superior in moisture retention (water retention) because the moisture evaporation rate is significantly lower than that of the mask pack obtained in comparative example 4.
Industrial applicability of the invention
The cosmetic sheet of the present invention is excellent in stretchability, conformability between a nonwoven fabric and a film, and a pulling effect, and therefore can be suitably used for a mask sheet, a foot care sheet, a moisturizing sheet, and the like.

Claims (10)

1. A cosmetic sheet comprising a nonwoven fabric and a film laminated thereon, wherein a hot-melt adhesive fiber contained in the nonwoven fabric and the film are melt-bonded to each other to form a single body,
the non-woven fabric is a non-woven fabric containing hot melt adhesive fibers, the tensile elongation of the non-woven fabric in the longitudinal direction is 40-110%, the tensile elongation of the non-woven fabric in the transverse direction is 120-220%, and the ratio of the tensile elongation of the non-woven fabric in the transverse direction to the tensile elongation of the non-woven fabric in the longitudinal direction is 2-3;
the film is a film containing 40-90% by mass of a thermoplastic elastomer and 10-60% by mass of a thermoplastic resin, wherein a polyethylene elastomer or an ethylene-octene elastomer is used as the thermoplastic elastomer, and polyethylene or polypropylene is used as the thermoplastic resin, and the thickness of the film is 3-30 μm; the nonwoven fabric obtained by heating and melting the hot-melt adhesive fibers contained in the nonwoven fabric and the film in a molten state are laminated and pressed against each other, and the nonwoven fabric and the film are integrated with each other, whereby a part of the fibers constituting the nonwoven fabric is contained in the film.
2. The cosmetic sheet according to claim 1, wherein the load at 50% elongation is from 0.75N/25mm to 3.5N/25 mm.
3. The cosmetic sheet according to claim 1, wherein the load at 50% elongation is from 0.75N/25mm to 2.5N/25 mm.
4. The cosmetic sheet according to claim 1, wherein the cosmetic sheet after being stretched by 50% has an elongation of 20% or less.
5. The cosmetic sheet according to claim 1, wherein the cosmetic sheet after being stretched by 50% has an elongation of 8% to 15%.
6. The cosmetic sheet according to claim 1, wherein the nonwoven fabric has a basis weight of 5g/m2～200g/m2。
7. The cosmetic sheet according to claim 1, wherein the hot-melt adhesive fiber used for the nonwoven fabric is at least one selected from the group consisting of polyolefin fiber, polyester fiber, polyamide fiber, polyacrylonitrile fiber, ethylene-vinyl acetate fiber, vinyl acetate-vinyl chloride fiber, polyester-polyester composite fiber, polyester-polyolefin composite fiber, polyester-polyamide composite fiber, and polyamide-polyamide composite fiber.
8. The cosmetic sheet according to claim 1, wherein the film has a thickness of 1 to 50 μm.
9. The cosmetic sheet according to claim 1, wherein the cosmetic sheet has a basis weight of 10g/m2～250g/m2。
10. A mask pack formed from the cosmetic sheet according to claim 1.
CN201580023463.2A 2014-06-24 2015-06-17 Cosmetic sheet Active CN106455794B (en)

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