Electrophotographic image forming fixing member, method for manufacturing said fixing member, and electrophotographic image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsKatsuhisa Matsunaka, Katsuya Abe, Naoki Akiyama, Yasuhiro Miyahara
Life of this patent
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Abstract
A fixing member includes a substrate and an elastic layer on the substrate. The elastic layer comprises a cured product of a silicone rubber composition containing an anatase titanium oxide particle and an addition-curable silicone rubber, and undergoes cohesive failure in 90° peel test specified in JIS K6854-1: 1999. In the fixing member, an allyl group bound to a silicon atom is present at the interface between the substrate and the elastic layer.
Claims8
A fixing member comprising:
- a substrate;
- and
- an elastic layer on the substrate, the elastic layer comprising a cured product of a silicone rubber composition containing a titanium oxide particle having an anatase crystal structure and an addition-curable silicone rubber,
- wherein the elastic layer undergoes cohesive failure in a 90° peel test specified in JIS K6854-1:1999, and wherein an allyl group bound to an silicon atom is present at the interface between the substrate and the elastic layer.
A method for manufacturing a fixing member including a substrate, and an elastic layer on the substrate that is a cured product of a silicone rubber composition comprising a titanium oxide particle having an anatase crystal structure and an addition-curable silicone rubber, and that undergoes cohesive failure in 90° peel test specified in JIS K6854-1:1999, wherein an allyl group bound to a silicon atom is present at the interface between the substrate and the elastic layer, the method comprising the steps of:
- applying a primer containing a silane coupling agent having an allyl group bound to a silicon atom onto a substrate;
- baking the primer at a temperature of 50° C. or more and 120° C. or less;
- forming a layer of a silicone rubber composition on the substrate after baking the primer, the silicone rubber composition containing a titanium oxide particle having an anatase crystal structure and an addition-curable silicone rubber;
- and
- curing the silicone rubber in the layer.
An image forming apparatus comprising:
- a fixing device configured to fix an unfixed toner image formed on a recording medium to the recording medium by heating and pressing, the fixing device including a fixing member,
- wherein the fixing member includes a substrate, and an elastic layer on the substrate, the elastic layer comprising a cured product of a silicone rubber composition containing an anatase titanium oxide particle and an addition-curable silicone rubber,
- wherein the elastic layer undergoes cohesive failure in 90° peel test specified in JIS K6854-1:1999, and
- wherein an allyl group bound to a silicon atom is present at the interface between the substrate and the elastic layer.
Dependencies are inferred from the claim text.