BIODEGRADABLE WRAP FILM AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a wrap film with which flexibility and transparency are excellent and the wrap film is readily withdrawn during use in the method for producing the wrap film consisting essentially of a polylactic acid resin. SOLUTION: The method for producing the biodegradable wrap film comprises forming a resin composition containing the polylactic acid resin (A) and a plasticizer (B) into a film state and then heat-treating the resultant film. The amount of the plasticizer to be added is preferably 5-20 wt.% and a tackifier (C) is preferably added to at least one surface layer when the wrap film has≥2 layers. The pressure-sensitive adhesive strength is preferably 4-20 cN/250 mm as the film. COPYRIGHT: (C)2007,JPO&INPIT