公开(公告)号：JPH01208132A

公开(公告)日：1989-08-22

申请号：JP3369688

申请日：1988-02-16

Applicant: TORAY INDUSTRIES

Inventor： MATSUSHIMA KEISUKE ,  NAKAHARA KOJI ,  FUNAYAMA NOBUTAKA

IPC: B32B27/36 ,  C08J7/04

Abstract: PURPOSE:To obtain a dustless film for printer, printing and drawing, which is superior in dimensional stability, heat resistance, durability, printability and writing properties, by a method wherein a layer comprised of a water soluble high molecule and inorganic particles having a specific weight ratio is provided on a biaxially oriented polyester film whose thickness, light transmission density and whiteness degree are specified. CONSTITUTION:A layer of 0.3-7.0mum thick, which is comprised of a water-soluble high molecule and inorganic particles is provided on at least one surface of a biaxially oriented polyester film whose thickness is 6-300mum and light transmission density and whiteness degree are at least 0.3 and 60% respectively. A rate of organic particles is 20-40wt.% to the total weight of the water-soluble high molecule and inorganic particles and that of polyvinyl alcohol in the water-soluble high molecule is 15-35wt.%. Mean roughness on the center line of the surface of the layer comprised of the water-soluble high molecule and inorganic particles and the maximum height of the roughness are made respectively 0.1-0.6mum and 1.0-6.0mum. Shading properties of a light, the whiteness degree, printability, writing properties and wear resistance of the film obtained in this manner are extremely favorable.

公开(公告)号：JPS62204941A

公开(公告)日：1987-09-09

申请号：JP4930486

申请日：1986-03-06

Applicant: TORAY INDUSTRIES

Inventor： MATSUSHIMA KEISUKE ,  YAMAGISHI HIDEKI ,  NAKAHARA KOJI

IPC: B32B27/30 ,  B32B7/02 ,  B32B27/36 ,  C08L67/00 ,  G11B5/73