| 摘要 |
PURPOSE:To form an excellent peel-off film superior in strength of a peeled film and in balance between peelability and adhesiveness, and free from tackiness on the surface by forming a white synthetic resin film composed essentially of a polyvinyl acetal resin and a polyester resin compatible with it and a white pigmant on a transparent support. CONSTITUTION:The white synthetic resin film composed essentially of a polyvinylacetal resin, preferably, such as a polyvinyl butyral having a 70-85wt% butyral component and a polymn. degree of 200-2,500, or polyvinyl formal having a 75-85wt% formal component and a polymn. degree of 300-1,100, and a polyester resin, preferably, having a mol.wt. of 5,000-30,000 compatible with it and a white pigmant is formed on a transparent support, preferably, such as a biaxially stretched polyethylene terephthalate film. |
