Production method of special-shaped superbright fully drawn yarn-low-elastic yarn

Abstract

The invention provides a method for producing abnormal superbright fully drawn yarns-low stretch yarns, namely a method for preparing abnormal FDY polyester filament yarns into DTY polyester filament yarns. The main DTY technological flow is as follows: after stretching and twisting, heat-setting, oil application and winding of the abnormal FDY filament yarns, the FDY polyester filament yarns are prepared into the DTY polyester filament yarns. The method solves the problems of poor abnormity maintenance and size stability of the abnormal DTY polyester filament yarns and boardy hand feeling of the FDY polyester filament yarns and compensates the defects in the prior art.

Description

technical field

[0001] The invention relates to a production method of special-shaped ultra-bright fully drawn yarn-low elastic yarn. Background technique

[0002] With people's urgent demand for high-grade and comfortable clothing fabrics, super-bright polyester filaments are in increasing market demand because of their comfort and fashion, good gloss and feel, and good hand feel. However, the glossy polyester filaments currently produced are poor in comfort and softness, the outer surface of the filaments has poor refraction and reflection effects on light, the luster is dull, and there are many hairs, which are easy to break, and the woven fabrics lack softness and brightness. .

[0003] At present, most manufacturers use controlled fiber cross-section to achieve high gloss of fibers. The special-shaped cross-section of the fiber includes trilobal, Y-shaped, W-shaped, figure-eight, etc. Among them, the fiber surface of the trilobal cross-section has a unique longitudin...

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