| 摘要 |
PURPOSE:To prevent the deterioration of performance even if color originals of large images are continuously copied by subjecting a core material to intermediate coating of a block copolymer and further to double coating, thereby enhancing the adhesive property and affinity thereof. CONSTITUTION:The core material is subjected to the intermediate coating with the block copolymer and further the surface thereof is coated. The block copolymer is the polymer formed with high-polymer chains by connection of >=2 kinds of segments having different functions in the form of blocks. Namely, the one segment plays the role of enhancing the adhesive property to the core and the other segment acts to improve the affinity to the material to be applied on the further upper layer of the block copolymer. The block copolymer has eventually the function to securely adhere the film of the uppermost layer to the carrier. As a result, the degradation in image density and the generation of dimming are obviated and the deterioration of the performance is prevented even if the color originals having the large image areas are continuously copied. |
