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Title:
HETERO-SHRINKING COMBINED POLYESTER FILAMENT YARN
Document Type and Number:
Japanese Patent JP2004218159
Kind Code:
A
Abstract:

To provide hetero-shrinking combined polyester filament yarn that gives fabrics of wool-like fabric hand with reduced fluff and high bulkiness and manifests excellent deep color dyeing.

The sheath yarn is prepared by heat-treating a polyester half-drawn yarn having a boiling water shrinkage of ≤ 5 % under relaxation, the core yarn is a polyester yarn having a boiling water shrinkage of ≥ 8 % and the core yarn and the sheath yarn are entangled with each other to give the hetero-shrinking combined filament yarn. In this case, both polyesters constituting the core yarn and the sheath yarn are produced by the polycondensation reaction in the presence of a catalyst comprising a reaction product between a specific titanium compound and a phosphorus compound.


Inventors:
HATTORI KEIJIRO
AISAKA HIROYUKI
Application Number:
JP2003000008162
Publication Date:
August 05, 2004
Filing Date:
January 16, 2003
Export Citation:
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Assignee:
TEIJIN FIBERS LTD
International Classes:
C08G63/85; D02G1/18; D02G3/36; D02J1/00; (IPC1-7): D02G1/18; C08G63/85; D02G3/36; D02J1/00
Attorney, Agent or Firm:
三原 秀子