Process of making mutlicomponent fibers

A process for producing multicomponent fibers comprising:

• (a) providing a dispersion of a particulate additive or chemical compound in a nonaqueous liquid carrier;
• (b) forming a blend of a first thermoplastic polymer and the dispersion by injecting the dispersion into an extruder which is part of a fiber extrusion apparatus and which extruder is extruding the first thermoplastic polymer thereby forming a blend of the additive or chemical component in the first thermoplastic polymer;
• (c) providing a second thermoplastic polymer to the fiber extrusion apparatus;
• (d) in the fiber extrusion apparatus, arranging the blend and the second thermoplastic polymer in a preselected, mutually separated relative arrangement;
• (e) directing the arrangement of blend and the second thermoplastic polymer to a spinneret which is a part of the fiber extrusion apparatus while maintaining the preselected, mutually separated relative arrangement;
• (f) extruding the directed arrangement of the blend and the second molten polymer through the spinneret to form multicomponent fibers;
• and
• (g) solidifying the multicomponent fibers.