APPLICATION METHOD

PURPOSE:To obtain a coating film uniform in thickness along a direction in which a film is supplied by a method wherein a substrate is transferred substantially at the same speed with the circumferential speed of a bar coater, then the substrate is transferred at a speed lower than the circumferential speed of the bar coater, and then the substrate is transferred substantially at the same speed with the circumferential speed of a bar coater. CONSTITUTION:When a substrate 6 is transferred at a speed W2 substantially coincident with a circumferential speed W1 of a bar coater 4, a liquid bank 8 is produced at the bar coater at once. Then, the substrate 6 is transferred at a speed W2 smaller than a circumferential speed W1 of the bar coater 4, liquid standing at the liquid bank 8 is more applied temporarily onto the substrate 6, all the liquid bank 8 is made to drop to a specific position, and a stripe 13 is formed out of an effective application region 14 due to uneven application. Thereafter, the substrate 6 is transferred at a speed W2 substantially coincident with a circumferential speed W1 of the bar coater 4. By this setup, a coating film uniform in thickness is formed on the surface of a substrate without giving an adverse effect to an effective coating film.