JP2004216684A - Decorative sheet and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative sheet excellent in antistaining properties, solvent resistance and scratch resistance and having a higher quality feeling and excellent design properties. <P>SOLUTION: This decorative sheet has a colored base layer, the ink layer printed on the upper surface of the colored base layer, the clear layer, of which the upper surface is subjected to embossing processing, laminated on the ink layer and the surface layer laminated on the clear layer. The surface layer is formed by curing an ultraviolet curable resin in such a state that a film is bonded to the surface of the ultraviolet curable resin layer and subsequently peeling the film. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a decorative sheet mainly used for decoration of architectural interior members and furniture, and a method for manufacturing the same.
[0002]
[Prior art]
In recent years, in the fields of architectural interior members, furniture, and the like, more excellent designs are required, and various laminated sheets are used as decorative materials.
Above all, the decorative material made by laminating a transparent resin sheet on a resin sheet that has been embossed with various patterns has a smooth surface even though the inside pattern can be seen through the transparent resin sheet. It has a three-dimensional effect and is highly useful due to its excellent decoration effect.
[0003]
As such a decorative sheet, for example, a laminated sheet described in Patent Document 1 can be mentioned. That is, the patent publication discloses that a resin sheet such as a polyvinyl chloride resin obtained by adding a glitter pigment such as mica is embossed to form a colored base layer having a textured pattern, and the colored base layer is formed of an ultraviolet curable type. Applying an adhesive, further laminating a clear layer made of a transparent or translucent polyvinyl chloride resin or the like thereon, and irradiating ultraviolet rays through the clear layer to cure an ultraviolet curable adhesive, thereby forming a laminate. A sheet is disclosed.
[0004]
[Patent Document 1]
JP-A-5-4321
[Problems to be solved by the invention]
However, such a laminated sheet of the prior art can express a certain three-dimensional effect, but when a more luxurious design is required, the quality is slightly inferior to the texture. Can not be said to have.
[0006]
Further, in the conventional laminated sheet, a polyvinyl chloride resin or a polyester resin, which can be easily matted, is used as a surface layer in order to perform a matting treatment (matting treatment) for enhancing the texture.
However, when these resins are used, the texture can be improved by mat treatment, but there is a problem that polyvinyl chloride resin has poor stain resistance and solvent resistance, and polyester resin has poor scratch resistance.
[0007]
In particular, since a metal such as aluminum has a unique matte feeling, when a decorative sheet having a design such as aluminum is required, the conventional method is inferior in texture and the like, and the design property is insufficient. There is a problem.
[0008]
In view of the above problems, an object of the present invention is to provide a cosmetic sheet having excellent stain resistance, solvent resistance, and abrasion resistance. Another object of the present invention is to obtain a decorative sheet having a higher texture and an excellent design property.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, a cosmetic sheet of the present invention comprises a colored base layer, an ink layer printed on the upper surface of the colored base layer, and a clear layer laminated on the ink layer and having an upper surface embossed. And, a cosmetic sheet comprising a surface layer laminated on the clear layer, the surface layer, after curing the ultraviolet curable resin in a state where the film is attached to the surface, The film is formed by peeling the film.
By laminating a surface layer made of an ultraviolet curable resin, scratch resistance can be improved, and stain resistance and solvent resistance can also be improved. Furthermore, by combining a colored base layer, an ink layer, and a clear layer whose upper surface is embossed, and covering this with a surface layer, a decorative sheet having a three-dimensional appearance and excellent design properties can be obtained.
[0010]
Further, the cosmetic sheet of the present invention is characterized in that the film has a mat surface on which the film is subjected to a mat treatment, and the mat surface is transferred to the surface layer.
The film used for forming the surface of the surface layer is matted, and the matte surface is transferred to the surface layer, so that the texture can be further improved, and the design of the decorative sheet can be further improved. Can be.
[0011]
Further, the present invention is characterized in that an ink layer is printed on the colored base layer, a clear layer having an upper surface embossed thereon is laminated on the ink layer, and a surface layer is laminated on the clear layer. The method is characterized in that a resin is applied on the clear layer, and the resin is cured in a state where a film is attached to the resin, and then the film is formed. To form the surface layer.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a cosmetic sheet and a method for manufacturing the same according to the present invention will be described in detail with reference to the drawings.
[0013]
FIG. 1 is a cross-sectional view showing one embodiment of a cosmetic sheet according to the present invention. In the present embodiment, the decorative sheet 1 includes a colored base layer 2, an ink layer 3 printed on the colored base layer 2, a clear layer 4 laminated on the ink layer 3, and a clear layer 4. An upper surface of the clear layer 4 is embossed 4a.
[0014]
The coloring base layer 2 is formed by forming a resin containing a coloring agent into a film shape. As the resin constituting the colored base layer 2, a thermoplastic resin such as a polyvinyl chloride resin, a polyester resin, and an acrylic resin can be used. Among them, the moldability with the substrate in printing, heat lamination, and post-processing is easy. Therefore, polyvinyl chloride can be suitably used.
[0015]
As the colorant, it can be appropriately selected and used in accordance with the design desired for the cosmetic sheet, but it is preferable to use a combination of an inorganic pigment and an organic pigment in consideration of concealing properties and color. . As the inorganic pigment and the organic pigment, known pigments can be used.
[0016]
The thickness of the colored base layer 2 is not particularly limited, and can be appropriately set according to the application, the type of the resin, and the like, but is generally preferably 0.05 to 0.2 mm. Further, a plasticizer, a stabilizer, a processing aid, and the like may be appropriately added to the resin constituting the colored base layer, if necessary.
The colored base layer can be formed by a known means such as calendering.
[0017]
For the ink layer 3, an organic pigment, a brilliant pigment or the like can be used in an appropriate combination. To obtain a design having a metallic luster such as aluminum, an ink containing a brilliant pigment is preferably used. Can be used. As the glitter pigment, known glitter pigments such as aluminum flake, mica, metal titanium flake, graphite, stainless steel flake and pearl can be used.
The ink layer 3 can be formed by printing on the colored base layer 2 by a known means such as gravure printing.
[0018]
The clear layer 4 has substantially the same configuration as the colored base layer 2, but differs from the colored base layer 2 in that it is configured to be transparent or translucent. Also, the clear layer 4 can be subjected to a desired embossing 4a such as a hairline tone or a grain tone on the upper surface.
[0019]
The surface roughness of the embossing is preferably 10 μm or more, more preferably 15 to 20 μm. If the surface roughness of the embossing is less than 10 μ, the three-dimensional appearance is poor.
As a method of performing such embossing, it is possible to use an embossing roll having a desired pattern as described above on the surface and heat and press the clear layer 4 to perform processing.
In the present invention, the surface roughness refers to a center line average roughness (Ra), which can be measured using, for example, "Surf Test 201" manufactured by Mitutoyo Corporation.
[0020]
Further, it is preferable that at least one of the glitter pigment and the organic pigment is blended in the clear layer 4 as a colorant.
[0021]
As the surface layer 5, an ultraviolet-curable resin is used from the viewpoint of easy control of the curing reaction and excellent durability, and a urethane acrylate-based ultraviolet-curable resin can be more preferably used. As a method for forming the surface layer 5, for example, after applying the ultraviolet-curable resin on the clear layer 4, a film is attached, and ultraviolet light is irradiated while the film is attached. It is preferable to cure the resin and then peel off the film. As the film, for example, a 25 μm polyester film or a polypropylene film can be suitably used.
[0022]
Further, it is preferable to use a film whose surface is matted and transfer the matte surface of the film to the surface layer by bonding the matte surface to the resin. By adopting the means of transferring the matte surface of the film to the surface layer 5, it becomes possible to impart a matte feeling (matte feeling) to the UV-curable resin which has been difficult to matte. It is possible to express a color tone having a metallic luster like real aluminum, and to constitute a cosmetic sheet excellent in stain resistance, solvent resistance and scratch resistance.
[0023]
As the matte feeling of the surface layer, it is preferable that the matte state is slightly more modest than that of a complete matte state. VG-ID type ”) has a surface gloss of 30 to 80.
When the surface layer in such a mat state is formed, the three-dimensional effect by the clear embossed layer and the matte effect by the surface layer are exhibited in a well-balanced manner, so that a more excellent design can be obtained.
[0024]
The thickness of the surface layer 5 is preferably 10 to 15 μm. If the thickness is less than 10 μm, the durability is inferior, and poor deaeration with the film occurs, resulting in an air biting state, which may deteriorate the design. Further, if the thickness of the surface layer 5 is larger than 15 μm, the durability cannot be further improved, and the cost is rather increased.
[0025]
As described above, the decorative sheet according to the present invention has a deep decorative sheet by laminating the colored base layer 2, the ink layer 3, and the clear layer 4, and by embossing the surface of the clear layer 4. It becomes.
When the surface layer 5 is formed by curing the ultraviolet-curable resin in a state where the matted film is attached and then peeling off the film, the surface of the surface layer 5 Since a matte feeling is also imparted to the decorative sheet, the texture of the decorative sheet is greatly improved, and the design is more excellent.
[0026]
【Example】
14 parts by weight of dioctyl phthalate as a plasticizer, 4 parts by weight of an epoxidized fatty acid ester, 3.5 parts by weight of a Ba-Zn composite stabilizer as a stabilizer, 100 parts by weight of a polyvinyl chloride resin (degree of polymerization 800), processing aid A compound containing 1 part by weight of polymethyl methacrylate as an agent and an appropriate amount of an inorganic pigment and an organic pigment as a colorant was rolled to a thickness of 0.08 mm by calendering to form a colored base layer.
[0027]
Next, an ink containing a general bright pigment was gravure printed on the colored base layer to form an ink layer.
[0028]
Next, based on 100 parts by weight of the polyvinyl chloride resin (polymerization degree 800), 14 parts by weight of dioctyl phthalate as a plasticizer, 4 parts by weight of an epoxidized fatty acid ester, and 3.5 parts by weight of a Ba-Zn-based composite stabilizer as a stabilizer. 1 part by weight of polymethyl methacrylate as a processing aid, and an appropriate amount of a brilliant pigment as a coloring agent (natural mica-applied interference pearls manufactured by Hiko Co., Ltd., trade names "Corona 1605", "Corona 1655", "Corona 1645", " A compound containing (Corona 1648 ") and an organic pigment (trade names" Corona 9159 "," Corona 9411 "," Corona 9611 ", and" Corona 5380 ", manufactured by Nikko Bix Co., Ltd.) is calendered to a thickness of 0.08 mm. Rolling was performed to form a film constituting the clear layer. Then, the film was embossed in a hairline manner by pressing with an embossing roll, and then laminated on the colored base layer on which the ink layer was printed.
[0029]
Further, a UV-curable resin (VCX1500, manufactured by Tope Co., Ltd.) is applied on the clear layer so as to have a film thickness of 12 μm, and a polyester film (Lumirror, manufactured by Toray Industries, Inc.) having a high gloss matte surface thereon X44, thickness 25 μm) was applied, and the ultraviolet-curable resin was irradiated with ultraviolet rays through the film.
Thereafter, the film was peeled off to produce a decorative sheet having aluminum-like design properties.
[0030]
Visual observation of the design of the cosmetic sheet obtained in this way revealed that it had a sufficient three-dimensional appearance and texture, and that it had a unique matte feeling like a real aluminum sash. Was.
[0031]
【The invention's effect】
As described above, according to the cosmetic sheet and the method for producing the same according to the present invention, it is possible to obtain a cosmetic sheet having a deeper color and a higher texture, and having excellent design properties.
[0032]
In addition, when the decorative sheet according to the present invention exhibits a design property such as aluminum, the decorative sheet has an extremely high quality design such as an aluminum sash.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an embodiment of a cosmetic sheet according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cosmetic sheet, 2 ... Color base layer, 3 ... Ink layer, 4 ... Clear layer, 5 ... Surface layer

Claims (5)

A colored base layer, an ink layer printed on the upper surface of the colored base layer, a clear layer laminated on the ink layer and embossed on the upper surface, and a surface layer laminated on the clear layer. A cosmetic sheet comprising:
The cosmetic sheet is characterized in that the surface layer is formed by curing an ultraviolet-curable resin in a state where the film is attached to the surface, and then peeling the film. 2. The decorative sheet according to claim 1, wherein the film has a matte surface subjected to a mat treatment, and the matte surface is transferred to the surface layer. The decorative sheet according to claim 1, wherein the embossing has a surface roughness of 10 μm or more. The cosmetic sheet according to claim 1, wherein the ink layer contains a glitter pigment. A decorative sheet, characterized in that an ink layer is printed on a colored base layer, a clear layer whose upper surface is embossed is laminated on the ink layer, and a surface layer is laminated on the clear layer. A manufacturing method,
An ultraviolet-curable resin is applied on the clear layer, the resin is cured in a state where a film is attached to the resin, and then the film is peeled off, thereby laminating the surface layer. A method for producing a cosmetic sheet.

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