Paint supply method of DF coater and paint supply line of DF coater

摘要

To provide a method of supplying paint DF coater and paint supply line DF coater not be used to generate the streak defects in the coating film of the substrate. A paint supply line DF coater for supplying paint to the DF coater head 11 having a nozzle 40 to flow down the curtain film-like paint Q, on the upstream side of the DF coater head 11, and instead of paint Q providing the flushing water valve 21a for supplying the nozzle 40 the flushing water W is. Also, in the initial stage to flow down the curtain film like paint Q from the nozzle 40, is supplied to the DF coater head 11 the flushing water W to open the flushing water valve 21a.