| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge port, for preventing drying of the opening of the discharge port in a liquid application device so as to stably form a coating film and prevent contamination by foreign matters. SOLUTION: The surface of the discharge port is roughened in order to positively draw solvent component toward a liquid-wetted part in the outside of the discharge port. Thus, the discharge opening is prevented from drying, which prevents solid foreign matters from growing, and further, the form of the discharged fluid is maintained without being effected by solid foreign matters. COPYRIGHT: (C)2003,JPO
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