| 摘要 |
PURPOSE:To accelerate the fixation of copying paper and to obtain long-period use by using a heat fixing roller constituted by covering the external surface of a metallic roller used for an electronic copying machine, etc., with a rubber sheet which consists essentially of fluororubber and also contains fluororesin. CONSTITUTION:An aqueous dispersed solution obtained mixed 95wt% fluororubber and 5wt% fluororesin (ethylene tetrafluoride resin) together is used, and a vulcanizing agent is added to and mixed with the solution, which is applied over the surface of an aluminum roller by spraying and then dried. This is heated at 300 deg.C to obtain a heat fixing roller with 30mum coating thickness. Then, 5-70% fluororesin based upon the total weight is added to obtain the best property balance between the antitackiness and wear resistance. When the coating thickness is 10-100mum, the heat fixing roller has the highest thermal efficiency. |
