Blending method using hemp fiber as main material

Abstract

The invention relates to a blending method using a hemp fiber as a main material. The method comprises the following steps of: firstly, processing the hemp fiber into rovings; secondly, mixing the roving yarns of the hemp fiber with the rovings or filaments of other fibers in proportion to form bunch yarns; and finally, spinning the mixed bunch yarns in the second step into spun yarns. The blending method has the advantages of improving the disintegration degree of the hemp fiber and removing impurity without damaging the performance of the blended fibers, ensuring a high spinning yam count and quality of the blended yarns and greatly improving the quality of the blended yarns of the hemp fiber along with simple process.

Description

technical field [0001] The invention relates to a weaving process, in particular to a blending method with hemp fiber as the main material. Background technique [0002] At present, the spinning of hemp fiber mainly includes wet spinning and dry spinning. Dry spinning is similar to flax wet spinning, while long fiber dry spinning mainly uses ramie equipment. Because the yarn quality of hemp fiber wet spinning is relatively good, the spinning of hemp fiber generally adopts the wet spinning route, and the nodding (short fiber) produced in the wet spinning of hemp fiber or the dry spinning of long fiber is relatively good. ) is made of cotton. Due to the particularity of the wet spinning process and equipment of hemp fiber, it is very difficult to blend the long fiber of hemp fiber in wet spinning, and there are few researches on it. The blending of hemp long fibers is still mainly carried out on the dry spinning system, and the blending of hemp fibers reported so far is all ...

AI Technical Summary

Problems solved by technology

[0003] The main problem of the wet-spinning blending of hemp fibers is: blending usually first mixes hemp fibers with other fibers to make slivers, and then processes roving and spun yarns to form blended yarns. However, because there are many colloids in the hemp fibers and impurities, which affect the quality of blended yarn products, so in order to remove these colloids and impurities, improve the splitting degree and whiteness of hemp fibers, after the roving process, the roving made by blending must be boiled and bleached, that is, the blended fibers must be bleached. It is scoured and bleached together with hemp fiber, and the auxiliary agents such as acid, alkali and oxidant in the scorching and bleaching reagent will damage the strength and other properties of the blended fiber, so that the function of the blended fiber cannot be fully exerted, and finally affect the performance of the blended yarn

[0004] Due to the above problems, the blending of hemp fiber with other fibers in wet spinning is significantly affected, which is not conducive to the production of high-count, high-grade hemp fiber yarn products, and is also not conducive to the development of variety diversification of hemp fiber products. To a large extent, it limits the promotion and application of hemp fiber products, and restricts the development of hemp fiber industry

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