Process for preparing poly(trimethylene terephthalate) staple fibers for conversion into carpets
作者： Jerry Wayne Secrist , Hoe Hin Chuah
DOI:
关键词: Materials science 、 Fiber 、 Composite material 、 Crystallization 、 Crystallinity 、 Melt temperature 、 Poly(trimethylene terephthalate)
摘要: This invention is a process for the production of staple fibers from poly(trimethylene terephthalate) conversion into carpets which comprises: (a) extruding at melt temperature 240 to 280° C. round, trilobal, delta, multi-lobal, or hollow cross section fiber tow, (b) quenching tow such that undrawn filament has crystallinity ≦25%, preferably ≦20%, (c) prior drawing, heating 35° 65° C., between 35 and 55° control crystallization, (d) drawing fibers.
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