JPH03219953A - Decorative sheet manufacturing method - Google Patents

Abstract

PURPOSE:To impart an extremely excellent three-dimensional feeling by forming an embossed pattern to the surface of an upper resin layer composed of a transparent - translucent thermoplastic resin film and the boundary surface between the rear of the upper resin layer and the surface of a lower resin layer. CONSTITUTION:A decorative sheet is composed of a laminated sheet consisting of an upper resin layer 21 formed from an upper film composed of a transparent thermoplastic resin film and a lower resin layer 31 formed from a lower film composed of a metallic film. Shallow recessed embossed patterns shown by a mark (e) are formed to the surface of the upper resin layer 21 and deep protruding embossed patterns (f) are formed to the boundary surface of the upper resin layer 21 and the lower resin layer 31. By this method, a far excellent effect in a three-dimensional feeling is obtained in this decorative sheet as compared with one having no protruding empossed patterns (f).

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a decorative sheet with a rich three-dimensional effect that has an uneven pattern on its surface and inside, and a method for manufacturing the decorative sheet.

[Prior art] In order to obtain a decorative sheet with a three-dimensional effect, a decorative sheet with an uneven pattern formed on its surface is used. For example, a decorative sheet with an uneven pattern formed on the surface by an embossing roll is used. sheet is used.

[Problems to be Solved by the Invention] However, although the decorative sheet whose surface has a concavo-convex pattern formed by the conventional embossing roll expresses a certain degree of three-dimensional effect, it is not satisfactory as a whole. It does not have a three-dimensional effect; for example, when a decorative sheet printed with a wood grain pattern is compared with a decorative material made of natural wood, the three-dimensional effect is not sufficient and the quality is inferior.

In contrast, the present invention provides a decorative sheet that sufficiently expresses a three-dimensional effect and a method for manufacturing the same.

[Means for Solving the Problems] The decorative sheet of the invention of Section 1 is a laminate comprising an upper resin layer made of a transparent to translucent thermoplastic resin film and a lower resin layer made of a colored thermoplastic resin film. The sheet is laminated so that the back surface of the upper resin layer and the surface of the lower resin layer face each other.

In the decorative sheet of the invention of Section 1, the interface between the surface of the upper resin layer made of the transparent to translucent thermoplastic resin film, the back surface of the upper resin layer, and the surface of the lower resin layer. An uneven embossed pattern is formed on the surface.

In addition, the decorative sheet of the invention of Section 2 is the decorative sheet of the invention of Section 1, in which an intermediate resin layer of one or more thermoplastic resin films is interposed between the upper resin layer and the lower resin layer. It is something.

Furthermore, in the decorative sheet of the invention of Section 3, in the decorative sheet of the invention of Section 2, the intermediate resin layer made of a thermoplastic resin film is composed of a film having a pattern layer.

Furthermore, the decorative sheet of the invention of Section 4 is
In the decorative sheet of the invention, at least one of the lower resin layer made of a colored thermoplastic resin film and the pattern layer in the intermediate resin layer is colored with a glitter pigment.

In addition, the method for manufacturing the decorative sheet of the invention of Section 5 is transparent to
An upper film made of a translucent thermoplastic resin film and a lower film made of a colored thermoplastic resin film are heated between an embossing roll having an uneven pattern and a backup roll having an uneven pattern. The decorative sheet of the invention of Section 1 is obtained by performing the laminating process and the embossed pattern forming process simultaneously.

In the actual invention having the above configuration, the transparent to translucent thermoplastic resin film serving as the upper resin layer of the decorative sheet contains, for example, vinyl chloride.

vinylon, ethylene-vinyl acetate copolymer, nylon,
Polyethylene, polypropylene.

A synthetic resin film made of ABS, polystyrene, acrylic resin, etc. with a thickness of about 20 to 500 μm, and a film with a hardness equivalent to 0 to 100 phr of a vinyl chloride resin film is used.

Note that the transparent to semitransparent thermoplastic resin film that becomes the upper resin layer of the decorative sheet is, for example, pearl clear,
Of course, films such as color clear and back print clear may also be used.

In addition, the colored thermoplastic resin film that becomes the lower resin layer of the decorative sheet is colored with a thickness of about 20 to 500 μm using the same thermoplastic resin as described for the thermoplastic resin film that becomes the upper resin layer. With resin film, O~100 phr with vinyl chloride resin film,
A material of considerable hardness is used.

The colored resin film may be a colored resin film containing a coloring agent, or may be a printed colored resin film, and further, for example,
Aluminum.

Pigments with metallic luster obtained from metals such as copper and brass, metal foil pieces, and cut pieces of metallized synthetic resin films, as well as mica and fish scale foil coated with titanium dioxide.

It may also be a colored film in a metallic tone to a burl tone obtained by using a glittering pigment such as a pigment that emits pearlescent to interference luster due to bismuth acid chloride or the like.

Further, the embossing roll used in the invention method of Section 5 is a conventional embossing roll called an embossing roll, and the backup roll used in combination with the embossing roll is made of rubber, ebonite, etc.
A roll made of paper, metal, or the like, whose surface has a desired uneven pattern is used.

[Example] The specific structure of the decorative sheet of the present invention and its manufacturing method will be explained below based on the drawing examples. transparent film (plasticizer 12 phr band - chemical
Co., Ltd.), and a lower film 3 made of semi-rigid vinyl chloride resin metallic film (plasticizer 12 phr, Band Kagaku Co., Ltd.) with a thickness of 0.1 mm. Preheating roll 4 heated to ℃
After being preheated by A and 4B, the heating drum 6 heated to 150°C is pressed from the back side of the lower film 3 with a heat-resistant rubber nip roll indicated by 5 at a pressure of 2 kg/cm. At the same time, the upper film 2 is overlapped so as to be in contact with the heating drum surface, and the heating drum 6 heats the upper film 2, the heater 8 heats the front surface of the upper film 2, and the heater 7 heats the back surface of the lower film 3. Heating is performed, and then 5 kg/
The sheet was embossed with cm2 and then slowly cooled using cooling rolls 11 and 12 to obtain an example of the decorative sheet of the present invention designated by the symbol 1.

The depth of the embossing roll used and the thickness of the sheet to be embossed are determined by the sum of the maximum depth of the embossing roll applied to the front side of the sheet and the maximum depth of the embossing roll applied to the back side of the sheet. It is preferable that the thickness is less than the thickness of the sheet, and the embossing pressure used is a normal embossing pressure of about 15 to 40 kg/cm2, and the impression cylinder hardness is 70 or more in terms of rubber hardness. is desirable.

As shown in FIG. 1, the decorative sheet 1 includes an upper resin layer 21 formed of an upper film 2 made of the transparent thermoplastic resin film used in the above manufacturing process;
It is made of a laminated sheet with a lower resin layer 31 formed of a lower film 3 also made of a metallic film 1, and the surface of the upper resin layer 21 has symbols e, e,
The shallow concave embossed pattern displayed in ...
Furthermore, deep convex embossed patterns f, f... are formed on the interface between the upper resin layer 21 and the lower resin layer 31, respectively.・
A much better three-dimensional effect was obtained compared to the one without.

[Operations and Effects of the Invention] The decorative sheet of the present invention has an upper resin layer made of a transparent to translucent thermoplastic resin film, and a lower resin layer made of a colored thermoplastic resin film. It consists of laminated sheets that are laminated so that the surface of the lower resin layer faces the surface of the upper resin layer made of the transparent to translucent thermoplastic resin layer film, and the surface of the upper resin layer An uneven embossed pattern is formed on the interface between the back surface and the surface of the lower resin layer.

Therefore, in the decorative sheet of the present invention, not only the three-dimensional effect due to the embossed pattern on the surface of the decorative sheet, but also the upper resin layer made of a transparent to translucent thermoplastic resin film and the lower resin layer made of a colored thermoplastic resin film are provided. The three-dimensional effect created by the embossed pattern formed on the interface between the layers works synergistically, resulting in an extremely excellent three-dimensional effect.

In addition, the method for producing a decorative sheet of the present invention includes rolling an upper film made of a transparent to translucent thermoplastic resin film and a lower film made of a colored thermoplastic resin film onto an embossing roll having an uneven pattern. The decorative sheet of the invention of Wooden Tablet 1 is obtained by heating and pressurizing the sheet with a back-up roll having an uneven pattern. The decorative sheet of the invention of wooden tablet 1, wherein the step of forming an embossed pattern on the surface and the step of forming an embossed pattern on the interface between the upper resin layer and the lower resin layer are performed in the l step. can be obtained efficiently and reliably.

[Brief explanation of drawings]

FIG. 1 is a cut end model diagram showing an example of the decorative sheet of the present invention, and FIG. 2 is a process diagram showing an example of the method for manufacturing the decorative sheet of the present invention. 1. Decorative sheet, 2. Upper film made of transparent to translucent thermoplastic resin film, 3. Colored thermoplastic. Lower film made of resin film, 9... Emboss roll with uneven pattern, 10... Backup roll with uneven pattern, 21... Upper layer resin in decorative sheet l Layer, 31...Lower resin layer in the decorative sheet l, e...Embossed pattern formed on the surface of the upper resin layer 21, f...Upper resin layer An embossed pattern formed on the interface between the layer 21 and the lower resin layer 23.

Claims (1)

[Scope of Claims] 1. An upper resin layer made of a transparent to translucent thermoplastic resin film and a lower resin layer made of a colored thermoplastic resin film are connected to the back surface of the upper resin layer and the surface of the lower resin layer. In the decorative sheet in which the decorative sheets are stacked such that they face each other, an uneven embossed pattern is formed on the surface of the upper resin layer and the interface between the back surface of the upper resin layer and the surface of the lower resin layer. A cosmetic sheet that is characterized by 2. The decorative sheet according to claim 1, wherein an intermediate resin layer made of one or more thermoplastic resin films is interposed between the upper resin layer and the lower resin layer. 3. The decorative sheet according to claim 2, wherein the intermediate resin layer made of a thermoplastic resin film comprises a film having a pattern layer. 4. The makeup according to claim 3, wherein at least one of the lower resin layer made of a colored thermoplastic resin film and the pattern layer in the intermediate resin layer is colored with a glittering pigment. sheet. 5. The upper film made of a transparent to translucent thermoplastic resin film and the lower film made of a colored thermoplastic resin film are combined with an embossing roll having an uneven pattern and a backup roll having an uneven pattern. 2. The method for producing a decorative decorative sheet according to claim 1, wherein heating and pressure are applied between the sheets.