Undercoat layer, method for manufacturing undercoat layer, electrophotographic photoreceptor, and image forming apparatus
AssigneeKYOCERA Document Solutions Inc.
InventorTomofumi SHIMIZU
Life of this patent
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Abstract
The undercoat layer contains metal particles and a polyamide resin. The metal particle has a core and a coat layer covering at least a part of the core. The core contains titanium oxide. The coat layer contains at least a metal oxide different from titanium oxide. The metal oxide different from the titanium oxide is located on the outermost surface of the metal particles. The polyamide resin has an amide bond and an alkylene group. The absorption rate of the first peak derived from the amide bond to the second peak derived from the alkylene group to the first absorbance measured by infrared spectroscopy is ≥0.70.
Claims21
The undercoat layer comprising:
- metal particles and a polyamide resin,
- wherein the metal particles include a core and a coat layer covering at least a part of a surface of the core;
- wherein the core includes titanium oxide,
- wherein the coat layer includes at least a metal oxide different from the titanium oxide;
- wherein the metal oxide different from the titanium oxide is located on the outermost surface of the metal particles,
- wherein the polyamide resin includes an amide bond and an alkylene group, and
- wherein an absorption rate of a second absorbance of a second peak derived from the alkylene group to a first absorbance of a first peak derived from the amide bond measured by infrared spectroscopy being not less than 0.70,
- the first peak being the maximum peak in a wave number range of 1620 cm−1 to 1680 cm−1, and
- the second peak being a maximum peak in a wave number range of 2900 cm−1 to 2970 cm−1.
Dependencies are inferred from the claim text.