METHOD FOR MANUFACTURING DECORATIVE FILM

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a decorative film by a calendering method using a polyolefin resin composition and obtaining a raven-black film of excellent quality like the case of using PVC (Polyvinyl Chloride).SOLUTION: The method for manufacturing the decorative film of single layer structure includes processes for preparing the polyolefin resin composition containing carbon black, and carrying out calender roll working of the polyolefin resin composition. The process for preparing the polyolefin resin composition is carried out by melting and kneading a raw material mixture under the conditions that the temperature of the polyolefin resin composition is higher than that in calender roll working and lower than the decomposition temperature of the polyolefin resin composition. The process for carrying out calender roll working of the polyolefin resin composition is carried out under the conditions that the calender roll equipment temperature is 160-190°C and the temperature of the polyolefin resin composition on a calender roll is 160-190°C.