| 摘要 |
PURPOSE:To reduce staining of mirrors and the like occurring during uses for a long term by regulating the content of the total component having <=20 polymerization degree to 0.75wt% in a low molecular weight polysiloxane contained in a silicone rubber coating a core metal. CONSTITUTION:The silicone rubber layer used for coating the circumference of the core metal of the fixing heating or pressing roller contains in the composition the low molecular weight polysiloxane, and the total content of the component having <=20 polymerization degree is regulated to <=0.75wt%, thus permitting staining of the mirrors to be reduced even during long-term uses, and good image qualities to be obtained for a long term. |
