Title:
POLYURETHANE ELASTIC YARN
Document Type and Number:
Japanese Patent JP2022056382
Kind Code:
A
Abstract:
To provide a polyurethane elastic yarn which is good in a heat-setting property in a broad temperature range and high in a heat adhesive force in a broad temperature range while maintaining elastic characteristics (permanent set and elongation).SOLUTION: The polyurethane elastic yarn including a polyurethane polymer [A] and a polyurethane polymer [B], and a ratio of the polyurethane polymer [A] and the polyurethane polymer [B] is 1 to 30 pts.mass : 99 to 70 pts.mass or 70 to 99 pts.mass : 30 to 1 pts.mass; exothermic peaks (crystallization peak) of the polyurethane elastic yarn fall in a range of 110°C to 210°C measured by a differential scanning calorimeter (DSC); and a calorific value of the exothermic peaks is 3.0 J/g or more and 100 J/g or less.SELECTED DRAWING: None
Inventors:
MORITA KAZUTAKA
TANAKA TOSHIHIRO
TANAKA TOSHIHIRO
Application Number:
JP2021152844A
Publication Date:
April 08, 2022
Filing Date:
September 21, 2021
Export Citation:
Assignee:
TORAY OPELONTEX CO LTD
International Classes:
D01F6/70; C08L75/04; D01F6/94; D02G3/32
Attorney, Agent or Firm:
Fukuoka Man
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