| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject film capable of well carrying out laser printing without perforating at the time of printing, without providing any defective appearance and deterioration in foods, etc., without damaging surrounding articles and causing no problem in food sanitation by using a composition containing a specific energy absorber. SOLUTION: This film comprises a composition containing (A) 100 pts.wt. thermoplastic resin (preferably a styrene-based thermoplastic resin, especially polystyrene), (B) 0.001-1.0 pt.wt. energy absorber capable of absorbing laser beams (preferably one or more substances selected from carbon, a metal oxide and a processed mica) and (C) 0.001-2.0 pts.wt. colorant and has the thickness regulated to 5-300 μm. |
