Method for the production of a thermal fixing roller

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

1987-10-21

1988-12-06

Childs, Sadie

Coating processes

With post-treatment of coating or coating material

Heating or drying

427377, 427379, 427387, 4273881, 4273935, 427409, 4274301, B05D 302

Patent

active

047895659

ABSTRACT:
The present invention relates to method for the production of a thermal fixing roller which comprises steps of applying a silicone rubber layer to the surface of a shaft, thereby forming a silicone rubber roller, applying a polytetrafluoroethylene coating to the surface of the silicone rubber roller by immersing the roller in a polytetrafluoroethylene dispersion and rotating the silicone rubber roller in a plane inclined with respect to a horizontal plane, removing the silicone rubber roller from the polytetrafluoroethylene resin dispersion, drying the coating on the outside of the silicone rubber roller at a temperature of at least 500.degree. C. for 10 to 120 seconds, preheating the coating from the inside of the silicone rubber roller, thereby elevating the temperature of the coating to a temperature which is less than that of the melting point of the polytetrafluoroethylene resin, and baking the coating to a temperature which is at least that of the melting point of the polytetrafluoroethylene resin.

REFERENCES:
patent: 3852861 (1974-12-01), Baker et al.
patent: 3967000 (1976-06-01), Klein et al.
patent: 4196256 (1980-04-01), Eddy et al.
patent: 4313981 (1982-02-01), Namiki
patent: 4430406 (1984-02-01), Newkirk et al.
patent: 4522866 (1985-06-01), Nishikawa et al.
patent: 4707387 (1987-11-01), Sakane et al.

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