PRODUCTION OF THERMOPLASTIC RESIN FILM EXCELLENT IN INK DRYING

摘要

PROBLEM TO BE SOLVED: To obtain a synthetic paper requiring a short drying time and excellent in adherence of ink by using a widely used oily ink. SOLUTION: A resin which is a mixture of a component B): 8-350 pts.wt. of an inorganic fine powder having an average particle diameter 0.01-10μm and a component A): 100 pts.wt. of a thermoplastic resin is a base wood of a stretched film. And the stretched film is kept in a stretched state. A support with a sharp angle of a tip part is abutted to a surface of this stretched material approximately in parallel to a direction of stretch and the stretched material is bended partially and the bending angle is determined to a deformation area with 50-140 degree. A continuous striping craze is formed approximately at right angle to a moving direction by relatively moving the film in order and the surface of the stretched material with the craze is oxidized.