Multicomponent yarn via liquid injection
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United States of America Patent
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Jun 24, 1997
Grant Date -
N/A
app pub date -
Nov 20, 1995
filing date -
Nov 20, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A process for producing multicomponent fibers provides a dispersion of a particulate additive or chemical compound in a nonaqueous liquid carrier, forms 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 tint thermoplastic polymer thereby forming a blend of the additive in the first thermoplastic polymer, provides a second thermoplastic polymer to the fiber extrusion apparatus; in the fiber extrusion apparatus, arranges the blend and the second thermoplastic polymer in a preselected, mutually separated relative arrangement; directs 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; exudes the directed arrangement of the blend and the second molten polymer through the spinneret to form multicomponent fibers; and solidifies the multicomponent fibers.
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