Patent ID: 7152526

Claim:
A surface treated doctor blade comprising a doctor blade base material, wherein at least both sides of a blade edge of said base material has a coating which comprises a first layer consisting of a nickel-based plating or a chromium-based plating (exclusive of an organic resin dispersed composite plating in which organic resin particles are dispersed) and a second layer provided thereon which has low surface energy and the ratio (B/A) of the film thickness (B) of the second layer to the film thickness (A) of the first layer is within a range of 0.005 to 0.6, wherein the sum total of a film thickness (A) of the first layer and a film thickness (B) of the second layer is within a range of 2 μm to 30 μm, and wherein the first layer is a nickel-phosphorous-based composite plating containing SiC particles having the particle size of 0.05 to 10 μm and the second layer is a layer consisting of an organic resin dispersed nickel-phosphorous-based composite plating containing tetrafluoroethylene-based resin particles having the particle size of 0.05 to 10 μm.