WOUND YARN BODY OF WATER ABSORBENT POLYESTER FIBER AND METHOD FOR MANUFACTURING SAME

Title:

WOUND YARN BODY OF WATER ABSORBENT POLYESTER FIBER AND METHOD FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO/2018/123043

Kind Code:

A1

Abstract:

A wound yarn body of a water-absorbent polyester fiber having a water absorbency under JIS L1907: 2010 falling-drop method after being washed 30 times under JIS L0217: 1995 103 C method of 5 seconds or less, the wound yarn body being characterized in that the deposition amount of white powder containing a cyclic oligomer that is the decomposition product of polyester constituting the water-absorbent polyester fiber is less than 0.3 wt%; and a method for manufacturing the wound yarn body that includes a process for applying alkali reduction to a polyester fiber containing 0.005-1 wt% of an element S at reduction rate of a 0.6-9% against the polyester fiber.

Inventors:

KINOUCHI HIROYUKI (JP)
DEGUCHI JUNKO (JP)

Application Number:

PCT/JP2016/089171

Publication Date:

July 05, 2018

Filing Date:

December 28, 2016

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)

International Classes:

D06M11/00; D06M101/32

Domestic Patent References:

WO2015076412A1	2015-05-28
WO2013168599A1	2013-11-14
WO2015076412A1	2015-05-28

Foreign References:

JPS63190073A	1988-08-05
JP2008525650A	2008-07-17
JP2017008425A	2017-01-12
JP2005200799A	2005-07-28
JP2014101598A	2014-06-05
JP2014101599A	2014-06-05

Other References: