METHOD OF CONTINUOUSLY MANUFACTURING MASTER ROLL FILM SUPPLIED TO HOLLOW-CONTAINING RESIN MOLDING, DEVICE OF CONTINUOUSLY MANUFACTURING MASTER ROLL FILM SUPPLIED TO HOLLOW-CONTAINING RESIN MOLDING, MASTER ROLL FILM SUPPLIED TO HOLLOW-CONTAINING RESIN MOLDING, METHOD OF MANUFACTURING HOLLOW-CONTAINING RESIN MOLDING USING THIS MASTER ROLL FILM, AND HOLLOW-CONTAINING RESIN MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a method of continuously manufacturing a master roll film used for a hollow-containing resin molding, the method causing no increase of a haze value due to crystallization and enabling efficient acquisition of the master roll film really suitable for the next process such as winding and stretching. SOLUTION: The method of continuously manufacturing the master roll film used for the hollow-containing resin molding includes the extrusion molding process of heat-melting and extruding a polymer composition containing a crystalline polymer followed by cooling the extruded polymer composition 205 to form an unstretched polymer molding 206, and the cutting and removing process of cutting and removing at least the portion of the non-stretched polymer molding 206 whose haze value is not less than 25%. COPYRIGHT: (C)2010,JPO&INPIT