Silklike polyester type filamentary yarn


PURPOSE: The titled filamentary yarns of noncircular cross section, prepared by sticking two component fibers having a specific difference in the shrinkage in hot water or above in the longitudinal direction thereof, and having a specific stretch extension ratio in a treatment with hot water, latent crimpability and further feeling and luster similar to those of silk. CONSTITUTION: A polyester, e.g. polyethylene terephthalate, is melt extruded through a nozzle (b) or (c) for modified cross section yarns to prepare two undrawn yarns 1 and 2 having ≥3% difference in shrinkage in hot water, which are then fed through a nip roll 3 and a feed roll 4 and drawn between a hot roll 5 and a draw roll 8. In the process, one yarn is brought into contact with a hot plate 6, and the other yarn is out of contact with the hot plate 6 with a separating guide 7. The two yarns are then drawn and doubled to give the aimed conjugate fibers of noncircular cross section having 10W75% stretch extension in the treatment with hot water and two component fibers having different shrinkages, and stuck in the longitudinal direction thereof. COPYRIGHT: (C)1984,JPO&Japio




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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    EP-0535878-A1April 07, 1993Toray Industries, Inc., Toray Textiles, Inc.Fil composite frisé et tissu
    JP-S61179333-AAugust 12, 1986Unitika LtdWild cocoon like polyester thick and thin yarn