Spinneret and method for manufacturing fiber web

A spinneret comprising:

• a plate including a plurality of nozzle holes formed therein;
• or
• a plurality of the plates stacked one another in a spinning direction,
• wherein, in at least one of the plates,
• the plurality of nozzle holes are formed in a substantially rectangular area on a principal surface,
• nozzle hole rows are aligned at regular intervals in a long side direction of the rectangular area, each of the nozzle hole rows including the plurality of nozzle holes aligned at regular intervals in a short side direction of the rectangular area,
• the rectangular area includes a non-forming zone that intersects with some of the nozzle hole rows, the non-forming zone continuously extending from one long side of the rectangular area to the other long side, and the non-forming zone including no nozzle holes,
• in each nozzle hole row with which the non-forming zone intersects out of the nozzle hole rows, at least one nozzle hole is not formed on a part where the non-forming zone intersects with a position of the regular interval at which the nozzle holes are aligned, and at least one nozzle hole corresponding to a number of the at least one unformed nozzle hole is additionally formed in a short side direction of the intersected nozzle hole row, and
• a number of nozzle holes in all of the nozzle hole rows is identical.