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Patent Searching and Data


Title:
PRODUCTION OF POLYOLEFIN-BASED FIBER
Document Type and Number:
Japanese Patent JP2000345428
Kind Code:
A
Abstract:

To provide a method for producing a polyolefin-based fiber highly oriented by a stretching method directly joined with a spinning simply at a low cost.

This method for producing a polyolefin-based fiber is to spin a polyolefin having ≥0.01 melt index(MI) from a spinneret 3 by melting it, pass the spun yarn through a heated towing zone 4 of which temperature is kept lower than the melting temperature (Tm) of the polyolefin directly below the spinneret and also within a temperature range (ΔT) in which the spun polymer does not essentially crystallize, introduce the spun yarn into heated zones 7, 8, 9 while keeping ≥Tm-ΔT temperature of it, stretch the spun yarn by ≥8 fold in the heated zones and wind the stretched yarn with a winding means 11.


Inventors:
YANASE HIROMI
KANBARA HAJIME
Application Number:
JP16016999A
Publication Date:
December 12, 2000
Filing Date:
June 07, 1999
Export Citation:
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Assignee:
KANSAI RES INST
International Classes:
D01F6/04; D01D5/098; (IPC1-7): D01F6/04; D01D5/098
Attorney, Agent or Firm:
Masahiro Okada