PURPOSE: To eliminate the gap between the pipe insertion hole and the pipe in a spinneret plate furnished with a pipe to flow spinning dope, and to prevent the leak of the dope and the falling off of the pipe, by welding said pipe to the nozzle plate.

CONSTITUTION: In the nozzle plate 2 of a spinneret device furnished with the pipe 1 for flowing spinning dope, the pipe 1 is inserted into the pipe insertion hole 3 bored to the nozzle plate 2 to protrude the tip of the pipe beyond the plate, and is welded to the nozzle plate 2 by resistance welding, laser beam welding or arc welding, etc.

EFFECT: The device can be used for a long period with little dimensional change with time, and has long life. the workability of the spinneret device can be improved.