Abstract: To instantaneously stop a coating solution discharged from a discharge port and to make uniform a film thickness of a coated film from a leading end to a trailing end, a slender discharge port facing a base material transfer path is formed at a finish end of a path for a coating solution formed at an inner portion of a die main body. A shutter for opening or closing the discharge port is installed on an outer side of the die main body, and a driving device for making the shutter extend or retract between an open position and closed position is installed.

Abstract: A coating apparatus comprises a head (25) having opposite edges (6, 7) cooperating with each other to provide an outlet (4a) of a coating liquid supply slit (4), and opposing portions (23a, 23b) between which a longitudinal recess (28) is formed, and a plurality of adjusting devices (30) having opposite ends (31, 32) engaged with the opposing portions of the head. A pulling or compressive force is developed between the opposite ends of each adjusting device so as to adjust the clearance (D) of the opposite edges. The adjusting means are movable in the longitudinal direction of the apparatus with their ends being engaged with the opposing portions of the head.