THERMAL ENERGY STORAGE AND HEAT INSULATION POLYESTER FIBER, AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2016/047928

A1

The present invention relates to a method for preparing a polyester fiber, comprising the steps of: preparing a dispersion solution by mixing 5-50 wt% of composite metal oxide particles comprising a tungsten-based oxide, a cerium-based oxide, an antimony-based oxide, an indium-based oxide and a tin-based oxide, 40-90 wt% of one or two types of organic solvents of an alcohol, a ketone and an acetate, 0.4-20 wt% of polyvinyl butyral, which is a polymer, and 2-30 wt% of calcium stearate and magnesium stearate, and then stirring and pulverizing the obtained mixture; preparing a powdered additive by drying the dispersion solution; preparing master batch chips by mixing 1-30 wt% of the additive with polyester chips and melting the obtained mixture; and mixing 1-10 wt% of the master batch chips with normal polyester chips, melting the obtained mixture, and spinning the same. A composite functional polyester fiber prepared by the preparation method of the present invention has effects in which the thermal energy storage and heat insulation effect thereof (lamp test) is increased by +3°C or more, the thermal energy storage and heat insulation function thereof (lamp test) is maintained for 10 minutes or more, and long fiber reeling processability of 95% or more and dyeing M% of 95% or more are implemented.

OH SUNG JIN (KR)
LEE MIN SUK (KR)

PCT/KR2015/008907

March 31, 2016

August 26, 2015

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HYOSUNG CORP (KR)

D06M11/46; D01F1/10; D06M11/47; D06M11/48

KR101354261B1	2014-02-05
JP2012172133A	2012-09-10
KR100926588B1	2009-11-11
KR970006375A	1997-02-19
KR20120076909A	2012-07-10

KIM, Hak Je et al. (KR)
김학제 (KR)

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