Patent ID: 6841196

Claim:
A method of forming a coating film on the surface of a cylindrical base material, said method comprising: inclining a coating former at an inclined angle in a range of 20° to 80° with respect to a tangential direction of rotation of a coating surface of a cylindrical base material rotatably supported horizontally, making a front end of said coating former approach said coating surface separated by exactly a clearance of a predetermined thickness, and coating a coating solution supplied from a coating feeder on the coating surface of said rotating cylindrical base material under a condition where said cylindrical base material supported at said rotating support device is rotated by exactly a first number of turns at a first rotational speed to form a coating layer, and separating said front end of said coating former from the position which said front end of said coating former approached the coating surface of said cylindrical base material separated therefrom by exactly the clearance of said thickness after said coating solution is coated on the coating surface of said cylindrical base material, and rotating said cylindrical base material at least ¼ of a turn at a second rotational speed from a detachment start position of the front end of said coating former to a position where a detachment has completely ended.