Method for obtaining roving single-yarn knitted fabric through bi-component compound synchronous thermal contraction technology

Abstract

The invention relates to a method for obtaining a roving single-yarn knitted fabric through a bi-component compound synchronous thermal contraction technology. The method comprises the following steps: (1) twisting a chemical fiber filament as an auxiliary material with a roving single yarn to form a compound yarn with bi-component; (2) during a twisting process, enabling the yarn surface fiber character of the roving single yarn to close or reach the texture during the twisting process of the similar roving double-yarn by controlling twisting degree; (3) adopting the compound yarn for weaving; and (4) after-finishing the weaved fabric according to the character of the chemical fiber filament. The roving knitted fabric prepared according to the method provided by the invention has a thick degree closing to one half weight of a common roving knitted fabric; the character and texture of the knitted fabric are close to those of the common roving knitted fabric; the wearability is better than that of the roving knitted fabric; and a roving knitted fabric can be obtained, wherein the gram weight of the roving knitted fabric is one time less than that of the traditional roving knitted fabric, the weaved count is two times of the original weaved count, and the roving knitted fabric has spinning thin texture and a roving style.

Description

technical field [0001] The invention relates to a method for manufacturing knitted fabrics, in particular to a method for obtaining slub single-yarn knitted fabrics through a two-component composite synchronous thermal shrinkage process. Background technique [0002] At present, with the continuous improvement of people's living standards and changes in the global climate, people's demand for knitted products is becoming more and more refined and thinner, and this trend is becoming more and more obvious. On the one hand, the production of thick and heavy products is becoming less and less, such as Shenlan wool products, which once ranked first among the three woolen knitting products in the 1990s, but are now rare. As for cashmere sweater products, compared with other woolen products, they are light and soft, and the output has more than doubled. On the other hand, with the improvement of production and processing technology, the spinning count of the same raw material is g...

AI Technical Summary

Problems solved by technology

[0003] Single yarn manufacturing generally faces the following problems. One is the weaving strength. To improve the weaving strength of single yarn, we can increase the twist of single yarn, but simply increasing the twist of single yarn will make the fabric feel hard and lose the characteristics of woolen products.

However, with double-yarn weaving, the twist coefficient of the single yarn will be greatly reduced after plying, close to 50%. The difference in the twist coefficient of the single yarn in the fabric is so large that it will inevitably affect the feel of the fabric.

In addition, if the single yarn is directly woven, the twist direction of the single yarn itself cannot be balanced. Increasing the twist will further increase the twisting force of the cloth surface, which is not conducive to overcoming the twisting of the fabric.

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