An extrusion-type applicator device continuously applying a liquid to a carrier film moving with a predetermined linear velocity and a predetermined running direction includes a head having a bore disposed parallel to the axis of the head for receiving the liquid, a slot connecting the bore with a surface of the head, a back edge portion disposed adjacent to the slot on the upstream side of the slot and having a chamfer whose width is less than or equal to about 50.mu.m but larger than the diameter of each grain of the material of the back edge portion, and a doctor edge portion disposed adjacent to the slot on the downstream side of the slot with respect to the direction, the doctor edge portion having a chamfer with a width of about 2 to 3 .mu.m provided at the upstream edge of the surface of the doctor edge portion. The applicator device can be modified to simultaneously apply a plurality of liquids to a carrier to produce a plurality of films thereon. The modified applicator device includes a second slot disposed between the slot and the chamfer of the back edge portion.