Title:
LATENT WATER-ABSORBENT CONJUGATE HOLLOW THICK AND THIN POLYESTER FIBER YARN AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP2668301
Kind Code:
B2
Abstract:
PURPOSE: To obtain a latent water-absorbing polyester fiber having easy dyeability and spinnability to form yarn and exhibiting excellent water-absorbing performance, dissipation performance of absorbed water and soft feeling by alkali thinning treatment.
CONSTITUTION: The fiber is a side-by-side conjugate hollow polyester fiber having uneven denier and a hollowness ratio of 10-30% and composed of a polyester (the component A) containing ≤95wt.% of polyethylene terephthalate and a modified polyester (the component B) having an alkali-thinning rate higher than that of the component A. Thick denier parts having spontaneous thermal extensibility and a thin denier parts having thermal shrinkability are randomly distributed in the longitudinal direction of each fiber constituting the yarn and between each fiber. A number of lateral grooves extending in the direction perpendicular to the fiber axis to the hollow part of the fiber are generated in the component A of the thick denier part by alkali thinning treatment and longitudinal grooves extending in the direction of the fiber axis to the hollow part of the fiber are generated at the B component of the thick denier part.
Inventors:
Kaori Kawabata
Hideo Sakakura
Fukui Juetsu
Hideo Sakakura
Fukui Juetsu
Application Number:
JP32618791A
Publication Date:
October 27, 1997
Filing Date:
December 10, 1991
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
D01F6/62; D01F8/14; (IPC1-7): D01F8/14; D01F6/62
Domestic Patent References:
| JP55163216A | ||||
| JP57199816A |
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