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Decorative sheet for floor material and production method thereof

A technology of floor materials and decorative sheets, applied in decorative art, special decorative structures, chemical instruments and methods, etc., can solve the problems of insufficient adhesion, prolonging the time of production process, and the time of production, so as to achieve sufficient adhesive strength Effect

Active Publication Date: 2012-08-29
日本印刷株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Heretofore, the above-mentioned decorative sheet for flooring materials having a backing layer has been produced by attaching a backing layer to the back of the decorative sheet by dry lamination or the like. However, when such a manufacturing method is used, there is a need for The time required for operations such as compounding the adhesive and adjusting the viscosity, and the curing time required to wait for the curing reaction after bonding
In addition, when dry lamination is used, the adhesiveness may not be sufficient
In addition, in order to improve the adhesion, it is tried to laminate the primer layer on the adhesive surface, but this will further prolong the time of the production process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] (Manufacturing of decorative sheets for flooring)

[0108] Colored polypropylene (base material sheet) having a thickness of 0.06 mm was prepared in advance. A patterned layer (2 μm) was formed on the base sheet by printing. Next, a 0.08 mm-thick transparent polypropylene-based resin film (transparent resin layer) was bonded to the patterned layer using a polyurethane-based dry lamination adhesive. The thickness of the transparent adhesive layer was 3 μm. Then, an electron beam-curable transparent surface protection layer (15 μm) was formed on the transparent resin layer. Then, embossing was performed from the side of the transparent surface protective layer to prepare a decorative sheet intermediate. In the embossing process, a wood grain conduit pattern with a depth of about 30 μm is obtained.

[0109] Finally, a film is formed by co-extruding molten resin (2 types and 3 layers) at 260°C to obtain a backing layer, on which the base sheet side of the decorative she...

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Abstract

The invention provides a decorative sheet for a floor material formed by bonding a synthetic resin layer (a padding layer) of polypropylene resin layer with the decorative sheet (decorative sheet middle body), as well as a simple production method of the decorative sheet. The decorative sheet for the floor material is produced through a simple method, and the padding layer and the decorative layerare fully bonded. The invention relates to the decorative sheet for the floor material, which is provided with the decorative sheet middle body and the synthetic resin layer, wherein one or two layers of decorative sheet middle body overlaps on the surface of a substrate sheet, and the synthetic resin layer with a thickness of over 150 microns overlaps on the back surface of the substrate sheet.The decorative sheet for the floor material is characterized in that the substrate sheet and the synthetic resin layer both contain polypropylene resin, and the decorative sheet for the floor materialis obtained from the decorative sheet middle body and the synthetic resin layer with a thermal laminating method.

Description

technical field [0001] The present invention relates to a decorative sheet for flooring materials and a manufacturing method thereof. Background technique [0002] As decorative sheets for floor materials using polyolefin resins, for example, Patent Documents 1 and 2 disclose laminating a decorative sheet on a relatively thick synthetic resin (so-called backing layer) made of polyolefin resins. Decorative sheets for flooring materials. The decorative sheet for floor materials is used as a decorative material for floors by laminating a backing layer on various attached materials. Moreover, a backing layer is a thick synthetic resin layer (reinforcement layer) provided in order to provide hardness, strength, etc. to the decorative sheet for floor materials. [0003] Heretofore, the above-mentioned decorative sheet for flooring materials having a backing layer has been produced by attaching a backing layer to the back of the decorative sheet by dry lamination or the like. How...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B37/06B44C5/04E04F15/00
Inventor 茅原利成中山宽章松川康宏增田洋史
Owner 日本印刷株式会社
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