Surface-roughened film and method for fabricating thereof.

摘要

A surface-roughened film having good transparency/exceptional clarity and high lubricity and useful as a photoengraving material, a label, packaging film, a magnetic recording film, and a clear film is formed of a composition comprising thermoplastic polyester resin (a) a thermoplastic resin (b) having a glass transition temperature higher than that of the thermoplastic polyester resin (a), a critical surface tension which differs by more than 0.1 dyne/cm from that of the thermoplastic polyester resin (a), and a melt viscosity at a temperature of 280 DEG C and shear rate of 10<2> sec<-><1>, of 500 to 50,000 poise; and optionally a particulate inorganic compound (c), and has protuberances cored with the thermoplastic resin (b) on at least one surface thereof.