Method for the production of thermal fixing roller

Details Method for the production of thermal fixing roller Method for the production of thermal fixing roller

B - Operations, Transporting

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B05D 1/18 (2006.01) B05D 3/02 (2006.01) B05D 5/08 (2006.01) B05D 7/00 (2006.01) B05D 7/14 (2006.01) B05D 7/16 (2006.01) G03G 15/20 (2006.01)

Patent

CA 1271672

Abstract of the Disclosure The present invention relates to method for the production of a thermal fixing roller which comprises a step of tubularly coating the periphery of a core shaft with a silicone rubber layer thereby forming a roller, a step of immersing the roller in a polytetrafluoroethylene resin dispersion, pulling the roller out of the dispersion by rotating, including slightly in the same direction to the horizontal plane and drying the wet roller thereby forming a polytetrafluoroethylene resin coat on the roller, a step of heating the polytetrafluoroethylene resin coat on the roller from outside at a temperature of 500°C or more for a period of 10 to 120 seconds, a step of heating the roller from inside thereby elevating the temperature of the polytetrafluoroethylene resin coat to a level of 230°C or more and less than the melting point of the resin, and a step of subsequently heating the polytetrafluoroethylene resin coat to a temperature of the melting point thereof or more thereby baking the coat.

549930

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