Modification method of drawn design on decorating film/shrink film for obtaining distortion-free design

Plastic is an important material in product design; however, it gives the customer the impression of a cheap product. Therefore, decorative techniques are often applied to plastic products. At present, film is predominantly used in decorating plastic products. However, the film could get deformed and the design image on the film could become distorted during the forming processes. Therefore, there is a need to correct the distortion of the design on a film. The objective of this study is to develop a method to modify the distortion of the design pattern that occurs because of film deformation during forming processes. The effectiveness of the proposed method is evaluated via experiments using decorating film and shrink film.