REAR FACE MOISTURE-PROOF PAPER FOR FLOOR MATERIAL AND DECORATIVE MATERIAL FOR FLOOR

Title:

REAR FACE MOISTURE-PROOF PAPER FOR FLOOR MATERIAL AND DECORATIVE MATERIAL FOR FLOOR

Document Type and Number:

Japanese Patent JP2023035719

Kind Code:

A

Abstract:

To provide rear face moisture-proof paper for a floor material which can suppress occurrence of warpage and pull-bending caused by humidity atmosphere.SOLUTION: Moisture-proof paper 2 is formed by laminating an anchor coat layer 2B containing first polyolefin, a vapor-deposited layer 2D and an overcoat layer 2E containing second polyolefin in this order, and has a layer 2C containing a polyvinyl alcohol-based resin provided between the paper base material 2A and the anchor coat layer 2B or between the anchor coat layer 2B and the vapor-deposited layer 2D. The moisture-proof paper 2 having such the configuration has moisture vapor permeability of 2.0 g/m2 24 hours or less, and can suppress occurrence of warpage and pull-bending caused by humidity atmosphere in a decorative material 4 by using the moisture-proof paper 2 as moisture-proof paper for the decorative material 4 for the floor.SELECTED DRAWING: Figure 1

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Inventors:

YAMAMURA NATSUKI
FURUSAWA NOBUO

Application Number:

JP2021142770A

Publication Date:

March 13, 2023

Filing Date:

September 01, 2021

Export Citation:

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Assignee:

TOPPAN PRINTING CO LTD

International Classes:

B32B27/10; B27D5/00; B27M3/00; B32B21/00; B32B27/00; B32B27/30; B32B27/32; E04B1/64; E04F15/02

Attorney, Agent or Firm:

Hirose Hajime
Miyasaka Tohru

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