Production process of environmentally-friendly heather-grey-effect composite textured filament for knitting

Abstract

The invention discloses a production process of environmentally-friendly heather-grey-effect composite textured filament for knitting. The production process comprises the following steps of: (1) manufacturing colored POY (Pre Oriented Yarn) yarn B; (2) manufacturing yarn A: adopting tencel or viscose filament as the yarn A; (3) controlling, elasticizing and compositing to obtain the environmentally-friendly heather-grey effect composite deformation filament. Due to adoption of the technical scheme, the filament-type heather-grey-effect simulating composite textured yarn is developed by a spun-dyed technology and a post-processing texturation technology, the production process is simple and the debugging and the control of the equipment and the process are more convenient and accurate.

Description

technical field [0001] The invention relates to the technical field of chemical fibers, in particular to a production process for environmentally friendly hemp ash effect composite deformed filaments for knitting. Background technique [0002] Hemp gray yarn is a kind of yarn spun by blending two or more staple fibers of natural color and color, that is, staple fiber blended yarn. Generally, the amount of colored fiber in the yarn is relatively small (according to the variety, generally only accounts for 5% to 40% of the total amount), and the natural color accounts for the majority. The colored fiber is relatively uniformly dispersed in the natural color, and the focus effect The colored fiber is very conspicuous in the spun yarn, thereby greatly improving the shortcomings of the pure color yarn that the color change is not rich enough. The above-mentioned characteristics can be called the hemp gray effect in the hemp gray yarn. [0003] The production process of hemp ash ...

AI Technical Summary

Problems solved by technology

[0005] However, there are difficulties and some limitations in the production and consumption of hemp yarn

First, the spun yarn spinning process is long, there are more equipment, and there are more process points that need to be adjusted, which will cause more weak links in the production of finished products, thereby increasing production costs

For example, in the opening and carding stages, the two raw materials must be kept clean to prevent the mixing of other fiber residues and flying flowers. The whole production process requires strict control of the workshop hygiene environment, so as to effectively prevent the hemp ash yarn from producing particle-like yarns. Second, the existing hemp yarn production has very high requirements on the stretching process. When the stretching process is not suitable, belly yarn and knotted yarn will appear; The calculation requirements are also very high. If the calculation of fiber and cotton is improper, it will cause a large number of products to be degraded, and even face claims from customers; Holes; Fifth, the short chemical fibers in the hemp yarn are easy to separate from the yarn, forming small hair balls hanging on the surface of the fabric, affecting the aesthetics of the fabric