ROLL COATING METHOD AND COATER

摘要

PROBLEM TO BE SOLVED: To surely prevent the generation of a streaky fault (roping) in the longitudinal direction at a low cost when a precoated steel sheet is manufactured by a roll coating method of a roll reverse system for transferring a paint film on an applicator roll to a steel sheet. SOLUTION: The paint film on the applicator roll is brought into contact with a resin film of 20-400μm thickness over at least 10 mm length in the peripheral direction of the applicator roll before the paint film is transferred to the steel sheet. A film of polyethylene terephthalate, polyethylene or polypropylene is preferably used as the resin film. When two pieces of resin films are brought into contact with the paint film at the different positions in the peripheral direction of the applicator roll, a bubbly fault caused by breaking a bubble can also be prevented. COPYRIGHT: (C)2005,JPO&NCIPI