SPINNING PACK AND METHOD FOR MANUFACTURING FIBER

Provided is a pack for spinning capable of obtaining filaments having uniform quality and a method for producing a fiber. The pack for spinning according to the present invention is provided with a kneading part including an introduction plate including first introduction holes and a plurality of kneading units including a supply plate including a plurality of supply grooves and one or more supply holes disposed in each of the supply grooves, and a converging plate including a plurality of converging grooves and a plurality of second introduction holes disposed in each of the converging grooves. When the kneading part is divided into virtual regions including an equal area on a face perpendicular to a polymer spinning path direction and separated in parallel with the polymer spinning path direction from an upstream side end to a downstream side end, each second end of the supply groove is disposed in a virtual region different from a virtual region where a first end is disposed, and a second end of at least one supply groove on the downstream side communicating through the converging grooves is disposed in a virtual region different from any virtual regions where the first ends of the supply grooves on the upstream side are disposed.