Method and apparatus for spiral-boss heterofil spinneret

摘要

An apparatus and method to increase the orifice density in a spinneret by using an elongate boss having a plurality of orifices. An apparatus and method for spinning bicomponent sheath/core filaments. The apparatus includes a distributor plate, and spinneret and a shim position between the distributor plate and the spinneret. The spinneret includes a plurality of elongate bosses spaced apart by channels. Each boss having a plurality of orifices of which the distance between the orifices are restricted only by manufacturing tolerances.