| 摘要 |
PURPOSE: A process for the production of polymeric fibers in the form of a tow and the apparatus for its production are provided, which comprises drawing and heat setting, with and without crimping. CONSTITUTION: The tow has a constant denier per inch during this processing. The process permits very large drawn tows to be produced having a thickness of at least 150,000 denier per inch of width during processing through the production equipment/apparatus. The production apparatus comprises a conventional stacker, followed by drawing apparatus, followed by heat setting apparatus, and optionally followed by crimping apparatus. Positioning the stacker before the drawing apparatus allows very large tows to be produced using drawing and heat setting apparatus having rollers significantly shorter than is conventionally known.
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