METHOD OF WASHING SLIT NOZZLE

摘要

[PROBLEMS] To provide a method of washing a slit nozzle, in which disassembly thereof is not needed, and in which washing up to orifice portion can be carried out. [MEANS FOR SOLVING PROBLEMS] Slit nozzle (2) is held by slit nozzle (2) holding means within washing tank (1), and a washing liquid is caused to flow through the interior of the slit nozzle (2). Forward pump (9) and backward pump (10) are appropriately used so as to carry out forward and backward flow of the washing liquid between the washing tank (1) and a circulation tank. Accordingly, any coating liquid adhering to the interior of the slit nozzle (2) and the tip of the slit nozzle (2) can be effectively washed away.