Cleaning blade, image forming apparatus, and process cartridge

摘要

A cleaning blade, including: rectangular elastic body blade containing cured first-UV-curable resin at tip ridgeline portion thereof, brought into contact with surface of to-be-cleaned member, the cured first-UV-curable resin being formed by impregnating the tip ridgeline portion with the first-UV-curable resin, followed by curing, and depth of the elastic body blade impregnated with the first-UV-curable resin from edge surface thereof is 50 μm-150 μm, wherein the elastic body blade contains surface layer containing cured second-UV-curable resin at the edge surface, wherein load-displacement curve of Martens hardness thereof has inflection points, and is obtained by pressing region of the surface layer thereof via resin particles having average particle diameter of 5 μm-10 μm, and distance of the region from the tip ridgeline portion is 0.5 mm or less, and wherein ratio of displacement at the inflection point, with which load is maximum, to the average particle diameter is 1.5-2.0.

主权项

1. A cleaning blade, comprising:
a rectangular elastic body blade, wherein the elastic body blade contains a cured first UV-curable resin at a tip ridgeline portion thereof, which is brought into contact with a surface of a member to be cleaned, where the cured first UV-curable resin is formed by impregnating the tip ridgeline portion of the elastic body blade with the first UV-curable resin, followed by curing the first UV-curable resin, and a depth of the elastic body blade impregnated with the first UV-curable resin from an edge surface thereof is 50 μm to 150 μm, wherein the elastic body blade contains a surface layer containing a cured second UV-curable resin at the edge surface thereof, wherein a load-displacement curve of a Martens hardness of the elastic body blade has inflection points, where the load-displacement curve is obtained by pressing a region of the surface layer of the elastic body blade via resin particles having an average particle diameter of 5 μm to 10 μm, and a distance of the region of the surface layer from the tip ridgeline portion is 0.5 mm or less, and wherein a ratio of a displacement at the inflection point, at which a load based on pressing the region of the surface layer of the elastic body blade via the resin particles is at a maximum, to the average particle diameter of the resin particles is 1.5 to 2.0.