Method for preparing dyed yarn by adopting Sirofil compound spinning

Abstract

The invention relates to a method for preparing a dyed yarn by adopting Sirofil compound spinning, and belongs to the technical field of textile processing. The method adopts the Sirofil compound spinning process which is characterized in that short fibers can be well wrapped by filament yarns, a dyeing device is arranged on a running path of filament yarns on a ring spinning machine to polyesterfilament yarns between front rollers, and a drying device is arranged on a running path of spun yarns between the front rollers and spun yarn tubes. The dyeing device applies a pigment paste to the polyester filament yarns, the drying device performs drying treatment on the twisted and formed spun yarns, and the polyester filament yarns are used for being spirally wrapped around the outside of cotton roving to achieve on-line dyeing of composite spun yarns. Compared with a conventional method using a dyeing process for dyeing after spinning or weaving, the method synchronously performs spinning and dyeing. The method shortens production cycle, saves production costs and simplifies operation steps.

Description

technical field [0001] The invention relates to a method for preparing colored yarn of sirofill composite spinning, which belongs to the technical field of textile processing. Background technique [0002] The Sirofill spinning method is a new spinning method developed on the basis of Siro spinning. For example, the Chinese public publication "Journal of Xi'an Institute of Engineering Science and Technology" was published in April 2007. The title of the article is "Study on the Yarn Process Performance of Cotton / Polyester Viscose Polyester Filament Sirofil Composite Yarn". The principle of this technology is viscose polyester The filaments are directly fed from the front roller through the yarn guide device, and output at a certain distance from the front nip of the front roller with the drawn cotton roving sliver. The points meet, and then strengthen the twist and merge again, and then be wound onto the bobbin to form the sirofil yarn. Therefore, the Sirofill composite sp...

AI Technical Summary

Problems solved by technology

The disadvantage is that if you want to endow the yarn with special properties, you must add a modification process in the yarn finishing process

The disadvantage is that the conventional method is to dye the yarn after yarn forming, which complicates the production process, increases the production cost and prolongs the production cycle.

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