DTY dual-color terylene silk for denim warp thread

Abstract

The invention relates to a DTY two-color polyester filament used on the meridian of the denim, which is prepared by the following procedures: (1) color master batch is tested by the computer to be matched color, and then dried, and compound color matched master batch is obtained; (2) a tackifier is added into polyester chips, then the polyester chips are pre-crystallized and dried, then the polyester chips and the compound color matched master batch are both added into a screw extruder to be spun and winded, and a dyed yarn POY or MOY is obtained; (3) the polyester chips are pre- crystallized and dried, then are added into the screw extruder to be spun and winded, and a white yarn POY or MOY is obtained; (4) the dyed yarn POY or MOY and the white yarn POY or MOY are overfeeding textured in variable frequency through slight tension control and networked two-color compound processed, and the DTY two-color polyester filament used on the meridian of the denim is prepared. The DTY two-color polyester filament realizes color matching effect of multicolor and compound color, keeps production processes of colored polyester filament material clean and environmental protective, and realizes the two-color effect of the spun polyester filament and the <color stripping> appearance styles of stone mills and water washing, etc. peculiar to the meridian of the denim.

Description

(1) Technical field [0001] The invention relates to a DTY two-color polyester yarn for denim warp. (2) Background technology [0002] In recent years, my country's polyester industry has developed rapidly. The output of polyester fiber has grown from 7.722 million tons at the beginning of 2002 to 19 million tons at the end of 2007, with an average annual growth rate of more than 20%. The output has doubled compared with five years ago. many. Polyester has become the synthetic fiber variety with the largest output among chemical fibers, and is widely used in various aspects of national economy and people's livelihood such as clothing, decoration, home textiles, industrial textiles, national defense, and industrial engineering. It will also maintain a growth rate of 15% in the future and is expected to reach 20 million tons by 2010. However, as a textile material, polyester fiber also has obvious disadvantages, such as poor hygroscopicity and dyeability, and relatively single...

AI Technical Summary

Problems solved by technology

However, denim production has long used (10-16) s / 1 or (40-60) s / 2 Pure cotton yarn is dyed by rope balls or dyed by warp beams in batches, not only has a single product variety, but also has a key technology—the production process of warp yarn dyeing, which is a large waste of dye and serious wastewater pollution; During the weaving process, due to the high-frequency friction of the warp yarn, the hairiness of the dyed cotton fiber falls off, and there are many flying flowers, resulting in an extremely harsh production environment and affecting the physical and mental health of the lathe workers.

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