Belt for electrophotography and production method therefor, and electrophotographic image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorNoriaki Egawa
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Abstract
Provided is a belt for electrophotography which is capable of suppressing the occurrence of adhesion to other members and blocking and which is less liable to cause image defects due to a singular protrusion. The belt for electrophotography comprises a surface layer which comprises heteroaggregate including an inorganic oxide particle having an average primary particle diameter of from 10 to 30 nm and an electroconductive metal oxide particle having an average primary particle diameter of from 5 to 40 nm, and a ten-point average roughness Rzjis of a surface of the surface layer satisfies a relationship: 0.3 μm≦Rzjis≦0.7 μm.
Claims6
A belt for electrophotography,
- comprising:
- a base layer;
- and
- a surface layer provided on the base layer
- or comprising:
- a base layer;
- an elastic layer provided on the base layer;
- and
- a surface layer provided on the elastic layer,
- wherein:
- the surface layer comprises heteroaggregate comprising
- an inorganic oxide particle having an average primary particle diameter of from 10 to 30 nm, and
- an electroconductive metal oxide particle having an average primary particle diameter of from 5 to 40 nm,
- the electroconductive metal oxide particle being different from the inorganic oxide particle;
- and
- wherein:
- a ten-point average roughness Rzjis of a surface of the surface layer satisfies a relationship:
- 0.3 μm≦Rzjis≦0.7 μm.
A production method for a belt for electrophotography,
- comprising:
- a base layer;
- and
- a surface layer provide on the base layer
- or comprising:
- a base layer;
- an elastic layer provided on the base layer;
- and
- a surface layer provided on the elastic layer,
- the production method comprising:
- applying a curable composition containing the following components (a) to (d) on the base layer or on the elastic layer each containing the following component (e);
- and
- curing the curable composition and forming the surface layer:
- (a) an alkyl group-modified inorganic oxide particle having an average primary particle diameter of from 10 to 30 nm;
- (b) an electroconductive metal oxide particle having an average primary particle diameter of from 5 to 40 nm treated with an alkylamine;
- (c) an acrylic monomer;
- (d) 2-butanone or 4-methyl-2-pentanone;
- and
- (e) a perfluoroalkyl sulfonic acid alkali metal salt or a perfluoroalkyl sulfonimide alkali metal salt.
Dependencies are inferred from the claim text.