Method for fabricating elastomer coated fixing rolls
AssigneeDow Corning Toray Silicone Co., Ltd.
InventorAkito Nakamura
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Abstract
This invention provides a highly efficient method for fabricating toner fixing rolls comprising a cured silicone rubber layer covering a metal core and a fluororesin film covering the silicone rubber layer. The characterizing feature of the present method is coating the inner surface of the fluororesin film with an organohydrogenpolysiloxane prior to contacting the film with the curable silicone rubber composition. The resultant roll is robust, highly toner-releasing; and low in hardness, and the fluororesin film and cured silicone rubber are firmly bonded to one another.
Claims3
A method for fabricating fixing rolls comprising a silicone rubber layer covering a metal core and a layer of a fluororesin film covering said silicone rubber layer, said method comprising
- 1) covering the interior wall of a hollow cylindrical mold with a cylindrical fluororesin film having an inner and an outer surface, wherein the inner surface of said cylindrical film is coated with a liquid organohydrogenpolysiloxane;
- 2) placing a metal roll core in the center of said mold;
- 3) injecting an organosiloxane composition curable to an elastomer between said film and said roll core;
- and
- 4) heating said composition sufficiently to cure it.
Dependencies are inferred from the claim text.