A device and method for anti-rolling of weft-knitted single-sided fabrics

Abstract

The invention discloses an anti-curling device and method for a weft-knitted single-side fabric. No fewer than three yarn hanging and guiding devices which are connected closely are designed and configured on a common single-side circular knitting machine; the yarn hanging and guiding devices adopt low-melting-point hot-melt synthetic staple fiber twisted warp yarns and a warp yarn plating stitch; based on the technology that selvages of a certain width are designed in a warp-knitted area, the selvedges of the fabric are locked owing to the characteristic that low-melting-point hot-melt yarns are melted and cured at a lower temperature, thus achieving the effect of preventing fabric curling and improving defects caused by after-treatment and sewing of curled selvages of the fabric. The weft-knitted anti-curling fabric produced through the device and the method is innovated integrally in device, raw material and stitch technology, the curling problem of fabric can be solved in a knitting respect, traditional methods of treating with various treating fluid or adding follow-up procedures are avoided, labor and cost can be saved, and the production process is effectively shortened.

Description

Technical field: [0001] The invention belongs to the field of anti-curling of fabrics, in particular to a device and method for anti-curling of weft-knitted single-sided fabrics. Background technique: [0002] Weft-knitted single-jersey fabrics are mainly produced on single-jersey multi-track and single-jersey jacquard machines, and the products are widely used in the production of underwear or outerwear. Due to the influence of yarn properties and fabric structure, single-jersey jersey fabrics will produce serious curling in the gray cloth state, and the degree of curling can be alleviated to a certain extent through post-processing finishing, but the effect is not significant. Especially in the cutting and sewing process, the setting effect will be damaged, and the curling phenomenon will become more and more serious. The hemming phenomenon of weft-knitted single jersey fabrics is the most obvious disadvantage of weft-knitted fabrics, which leads to higher production cost...

AI Technical Summary

Problems solved by technology

[0003] The treatment liquid treatment method is to treat the fabrics of different fiber materials such as cotton and wool with different treatment liquids, so that the fabrics can obtain a certain anti-curl effect. However, since different fibers use different treatment liquids, in order to improve the anti-curl For curling, all fabrics need to be processed, which is costly, time-consuming and labor-intensive; special weaving technology uses weaves that are not easy to curl, such as weaving with double bead fabrics with a width of about 4cm, and each side is 2cm after cutting , because the double bead ground is not easy to curl, it can play a certain role in fixing the selvage edge, but the effect is not particularly ideal. At the same time, for weaving a 4cm double bead ground weave, it is very troublesome to increase the tuck triangle for all the channels of the equipment; pulp Slurry edge treatment is to apply slurry on both sides of the fabric when setting the shape, and lock the edge of the fabric after the slurry is cured. However, the slurry is not only not environmentally friendly, but also requires a special sizing process when setting the shape, which is time-consuming and laborious.

[0004] Combining the above analysis, the existing methods to solve the curling of weft-knitted plain fabrics, some are to change the structure during the weaving process to improve, this method is not effective, and the adjustment of the machine is troublesome; some are special after getting off the machine. Improvement of the finishing process, this method has a better effect, but the process is complicated, and the derivative pollution is more, which does not meet the requirements of green production

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