JP3098311B2 - Decorative sheet and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative sheet, and more particularly, to a bending process, a drawing process, etc., which have high designability, good texture, and can be processed economically. The present invention relates to a decorative sheet that can be suitably used and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, decorative sheets have been used, for example, on cabinet surfaces. However, for the purpose of adjusting the gloss of the decorative sheet and improving the chemical resistance, the decorative sheet is filled with silica, talc, resin flake, or the like. A method of applying a coating material mixed with an agent as a top coat layer or laminating a sheet of a transparent thermoplastic resin has been used. But,
In such a conventional method, when the filler is opaque, there is a disadvantage that the base pattern is blurred. Therefore, the produced decorative sheet had no transparency or depth. Further, when the filler (for example, silica or the like) increases, there is a defect that the scratching property is deteriorated and the surface layer becomes hard. Further, in the method of controlling the gloss by embossing the thermoplastic resin sheet, the matting effect is not sufficient, and the direction in which the gloss is removed tends to be inferior in the scratch property. In addition, there is a method in which true spherical beads are colored and applied to a decorative sheet, and this method is also applied, but with this method, the design expression can be performed only by the colored beads, and the design expression is inferior. Various other technologies have been proposed. For example, JP-A-1-235634 discloses that by dispersing and embedding synthetic resin granules in a polyvinyl chloride matrix layer, it is possible to provide a decorative material that is not a flow pattern and has a high design quality with a granular pattern. Although described, this decorative material has disadvantages such as poor scratch resistance and no matting effect. Further, JP-A 1-317764 discloses a surface layer material in which particles composed mainly of a suspension polymerization type vinyl chloride resin and a resin paste mainly composed of an emulsion polymerization type vinyl chloride resin are blended on a sheet-like base material surface. Is described as providing a colorful and highly decorative decorative material, but this decorative material has disadvantages such as poor scratch resistance and no matting effect. further,
Japanese Patent Laid-Open No. 2-24138 discloses a method for producing a decorative sheet in which a pattern is printed on a transparent polyester film, a paint containing elastic spherical resin beads is applied, and a polyvinyl chloride film is adhered to the polyester surface. I have. Although it is described that this method provides a decorative sheet having a mat-like surface having excellent scratch resistance, this method has a drawback that the processability on a three-dimensional curved surface is poor. An object of the present invention is to solve the above-mentioned conventional problems, and to provide a decorative sheet having high design properties, good texture, and economical processing.

[0003]

Means for Solving the Problems The present inventors have conducted intensive studies on the design effect by providing a layer containing spherical and transparent beads on the surface layer of a colored sheet or printed sheet, and as a result, Conventional problems could be solved. That is, the first aspect of the present invention is a colored vinyl chloride tree.
A printing pattern layer is provided on the resin sheet layer , and a transparent vinyl chloride resin sheet having a thickness of 50 μm to 500 μm is provided on the printing pattern layer.
A decorative sheet is provided, wherein a layer containing spherical and transparent beads is provided on the transparent vinyl chloride resin sheet layer . In the second aspect of the present invention, a printed pattern layer is provided on the colored vinyl chloride resin sheet layer , and a thickness of 50 μm to 500 μm is formed on the printed pattern layer.
laminating a transparent vinyl chloride resin sheet layer of m, the permeability
An object of the present invention is to provide a method for producing a decorative sheet, characterized by applying a paint containing spherical and transparent beads on a clear vinyl chloride resin sheet layer . Third of the present invention
Is paint, thickness containing beads are spherical and transparent
It was applied to the transparent vinyl chloride resin sheet layer of 50 microns and 500 microns, on top of the layer which has been subjected to printing patterns it to colored vinyl chloride resin sheet, the printing pattern the transparent vinyl chloride resin sheet
The present invention provides a method for producing a decorative sheet, characterized in that the decorative sheet is laminated so as to be in contact with the coating layer .

Hereinafter, the present invention will be described in more detail with reference to the drawings. As shown in FIG. 1, the decorative sheet 1 of the present invention comprises a colored thermoplastic sheet layer 2, a printed pattern layer 3, a transparent thermoplastic sheet layer 4, and a layer 5 containing spherical and transparent beads (hereinafter simply referred to as a layer 5). (Also referred to as a spherical transparent bead layer).

(Colored thermoplastic sheet layer and printed pattern layer) The material of the colored thermoplastic sheet layer 2 in the decorative sheet 1 of the present invention is not particularly limited, and various kinds of thermoplastic resins colored by a conventional technique are used. A sheet can be used, and examples thereof include a vinyl chloride resin and an acrylic resin. The thickness of the colored thermoplastic sheet layer 2 is usually 50 to 500 μm, but may be further increased depending on the application. The printed pattern layer 3 formed on the upper surface of the colored thermoplastic sheet layer 2 can be formed using a known technique. For example, as the ink composition, a method such as gravure printing using a vinyl chloride acetate-based, acrylic-based, or nitrified cotton vehicle, or the like can be used.

(Transparent Thermoplastic Sheet Layer) The material of the transparent thermoplastic sheet layer 4 in the decorative sheet 1 of the present invention is not particularly limited, and a conventional transparent thermoplastic sheet can be used. For example, polyvinyl chloride, acrylic resin and the like can be mentioned. The thickness of the transparent thermoplastic sheet layer 4 is preferably 50 to 500 μm. By providing this transparent thermoplastic sheet, it is possible to give a three-dimensional effect, or it is possible to improve the workability depending on the use.

(Spherical Transparent Bead-Containing Layer) As the beads usable for the spherical transparent bead-containing layer 5 in the decorative sheet 1 of the present invention, various transparent and spherical beads can be used. Is appropriately selected from glass or spherical resins, for example, polyester, acrylic, urea-based resins, preferably those having a functional group such as a hydroxyl group, a carboxyl group, or an amino group, or those having been subjected to silane coupling, titanate coupling, or the like. can do. The binder contained in the spherical transparent bead-containing layer, as a binder for binding the beads, a thermoplastic resin, for example, polyester, acrylic, urethane resin can be used, a curing agent for curing the binder, for example, an isocyanate compound, Aromatic sulfone compounds, phosphoric acid, amines (eg, HMDI, MDI, etc.)
Etc. can be used. In order to uniformly disperse the beads, it is preferable to use a solvent such as toluene, ethyl acetate, MEK, or xylene. The mixing ratio of the beads and the binder is 1: 1 to 5: 1 by weight. The gloss increases when the amount of the beads is 2: 1 or less, and the beads fall off when the amount of the beads is 5: 1 or more. The ratio of the total weight of the beads and the binder to the solvent is usually 98: 2 to 2:98, preferably 10: 9 to 98: 2.
40:60. Bead diameter is 10-100μ
m, preferably 5 to 60 μm. The compounding ratio of beads in the spherical transparent bead-containing layer is preferably from 10 to 90% by weight, and more preferably from 60 to 85% by weight, based on the total weight of the spherical transparent bead-containing layer. The thickness of the spherical transparent bead-containing layer 5 is preferably 30 to 70 μm. If necessary,
The spherical transparent bead-containing layer 5 can contain a colorant, for example, aluminum, pearl, or the like, up to 20% by weight based on the weight of the spherical transparent bead-containing layer. The spherical transparent bead-containing layer may not be applied to the entire surface of the lower transparent thermoplastic sheet layer or the colored thermoplastic sheet layer, and may be partially applied as necessary.

(Manufacture of Decorative Sheet of the Present Invention) As a method of manufacturing the decorative sheet 1 of the present invention, first, a printed pattern layer 3 on which a desired pattern is printed on a colored thermoplastic sheet layer 2 using various techniques. And a transparent thermoplastic sheet layer 4 is provided thereon, and a spherical transparent bead-containing layer 5 is further provided thereon. As a method different from this manufacturing method, a method in which a spherical transparent bead-containing layer 5 is provided on a transparent thermoplastic sheet layer 4 is prepared in advance, and thereafter, the printed pattern layer 3
It is also possible to laminate the colored thermoplastic sheet layer 2 provided with. By doing so, it is possible to use it commonly for the colored thermoplastic sheet layers of various colors, which is preferable. As a method of laminating each layer, for example, a method of manufacturing by a known heat drum laminating method or the like can be mentioned. If necessary, the decorative sheet of the present invention can be subjected to graining by a conventional technique.

[0009]

The decorative sheet of the present invention has a surface layer of 10 to 60 μm.
Diffuse reflection occurs by using the beads of JIS
In the measurement method specified in Z 874, 60
° A suitable non-reflective reflectance of 1.0 or less is obtained with a gloss meter, and the texture of the finger is also good. Also, by providing the transparent resin bead layer, the base color becomes soft. The effect is particularly large when the base color is metallic or pearl.

[0010]

The present invention will be described below with reference to examples. As a colored thermoplastic sheet layer, a 100 μm thick, brown colored vinyl chloride sheet (polymerization degree 800, DOP23
Parts by weight, 3 parts by weight of a Ba-Zn-based stabilizer, manufactured by Riken Binni Kogyo Co., Ltd.), and a wood pattern was provided on the colored thermoplastic sheet layer by a gravure printing method as a print pattern layer. The transparent thermoplastic sheet layer has a thickness of 12
A 0 μm vinyl chloride sheet (polymerization degree 700, DOP 8 parts by weight, Ba-Zn-based stabilizer 3 parts by weight, manufactured by Riken Vinyl Industry Co., Ltd.) was used. The beads of the spherical transparent bead-containing layer were made of polyurethane resin as a material, and the average diameter of the beads was 25 μm. Methyl ethyl ketone (MEK was used as a solvent for dispersing polyester, polyol resin and beads having a molecular weight of 70,000 to 80,000. The weight ratio of beads and binder was 25: 7, and the total weight of beads and binder was used. The above-mentioned solvent was used in an amount of 68% by weight to prepare a layer containing spherical transparent beads, and the beads were 78% based on the total weight of the layer containing spherical transparent beads.
% By weight. The lamination of the transparent thermoplastic sheet and the spherical transparent bead-containing layer is performed by a method of applying a roll coater, and the lamination of the transparent thermoplastic sheet and the colored thermoplastic sheet is performed by a method of performing a hot drum lamination. I got The physical properties of the obtained decorative sheet were evaluated. The evaluation method and the results are shown in Table 1 below.
If the gloss value (60 °) is 1.0 or less, it means that there is an antiglare effect close to non-reflection.

[0011]

[Table 1]

[0012]

As described above, the decorative sheet of the present invention comprises:
Excellent design, soft and smooth texture of touch, deep printed pattern, printed color and underground color, three-dimensional appearance, and low surface gloss, using, for example, polyvinyl chloride alone There is little glare reflection like when you do. If a transparent thermoplastic sheet layer provided with a spherical transparent bead-containing layer is prepared in advance, it is economical because it can be commonly used for colored thermoplastic sheet layers of various colors.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a decorative sheet manufactured according to one embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 decorative sheet 2 colored thermoplastic sheet layer 3 printed pattern layer 4 transparent thermoplastic sheet layer 5 layer containing spherical transparent beads

Claims (3)

(57) [Claims] 1. A printed pattern layer is provided on a colored vinyl chloride resin sheet layer , and a thickness of 50 μm to 50 μm is formed on the printed pattern layer.
A 0 μm transparent vinyl chloride resin sheet layer is provided.
A decorative sheet, characterized in that a layer containing spherical and transparent beads is provided on a clear vinyl chloride resin sheet layer . 2. A printed pattern layer is provided on a colored vinyl chloride resin sheet layer , and a thickness of 50 μm to 500 μm is formed on the printed pattern layer.
Laminate a transparent polyvinyl chloride resin sheet layer of
A method for producing a decorative sheet, comprising applying a paint containing spherical and transparent beads on a transparent vinyl chloride resin sheet layer . 3. A transparent vinyl chloride resin having a thickness of 50 μm to 500 μm by coating a paint containing spherical and transparent beads.
Was applied to the sheet layer, on the layer subjected to printing patterns it to colored vinyl chloride resin sheet, the printing pattern the transparent chloride-bi
A method for producing a decorative sheet, comprising laminating so as to be in contact with a vinyl resin sheet layer .