| 摘要 |
PURPOSE:To keep the high performance of a copying machine, by adhering a white polyurethane film to a substrate sheet made of the vulcanized rubber or the thermoplastic synthetic resin and on the face where an original to be copied touches. CONSTITUTION:First, a white polyurethane film 2 is formed on a single face of the mold releasing paper 3. At the same time, a substrate sheet 1 is produced by coating and drying previously the primer and an adhesive. These film 2 and sheet 1 are adhered together with pressure with the touch of the film 2 and then blanked after the hardening. Finally the paper 3 is removed. Owing to the use of the polyurethane film 2 on the original touching face, the soil or the attachment of foreing matters can be avoided on the white color face under the process. |
