Blended spinning method of long spinning and damp spinning for bast fibers

Abstract

The invention provides a method integrated with long spinning, wet spinning and blended spinning for bast fibers. The method comprises the following steps: the bast fibers are scotched into flax; the flax is humidified and soaked for a period of time; the flax is carded into long flax; and the long flax is subjected to matching, silvering, drawing, roving, scouring, bleaching, spinning, drying and winding. The method is characterized in that after the bast fibers are bleached, the obtained rove of the bast fibers and rove or filaments of other fibers are blended on a spinning machine. With the method, blended fibers are not bleached and scoured together with the bast fibers, so the defect that the performance of blended yarn is affected due to the damage of bleaching and scouring agents to the blended fibers in the prior wet spinning and blended spinning is overcome, and the obtained blended yarn has the characteristics of bright and clean yarn body, less hairness, evenness and good wear resistance. In addition, the method can fully play a role in respective advantages of the bast fibers and the blended fibers, complement respective disadvantages of the bast fibers and the blended fibers, has simple process, is favorable for improving the quality of blended yarn of the bast fibers, and realizes the high count, high grade and diversification of varieties of the bast fibers.

Description

technical field [0001] The invention relates to a long-spinning wet-spinning and blending method of bast fibers, which belongs to the technical field of textile engineering. Background technique [0002] Flax wet-spinning blended yarn is carried out on flax wet-spinning process equipment, but due to the particularity of flax spinning process and equipment, wet-spun blending of flax is difficult, and there are few studies on it. At present, a very small amount of reported flax long-spinning wet-spun blending is in the form of sliver blending, that is, long or short hemp slivers are used with wool fibers, silk fibers, chemical fibers and other new fibers on a drawing frame or a carding machine. It is spun in a blended way to form a blended linen strip. Among them, the long-spinning wet-spinning blending process is: breaking bast fibers into hemp for carding, slivering, drawing, mixing (hemp and other fiber strips), roving, boiling and bleaching, spinning, drying and winding ...

AI Technical Summary

Problems solved by technology

[0003] However, the existing flax wet-spun blending has the following problems: in order to remove the colloid and impurities in the flax fiber and improve the splitting degree and whiteness of the flax fiber, after the roving process, the roving made by blending must be boiled and bleached, that is, blending The fiber should be scoured and bleached together with the flax fiber, and the auxiliary agents such as acid, alkali and oxidant in the scorching and bleaching reagent will damage the strength and elongation of the blended fiber, and the effect of the blended fiber cannot be fully exerted. Affect the properties of blended yarn

[0004] Due to the existence of the above problems, the existing flax wet-spinning and blending method cannot give full play to the excellent characteristics of various fibers, is not suitable for the production of high-count, high-end products, and is not conducive to the diversified development of flax product varieties, which limits to a large extent It hinders the promotion and application of flax products and restricts the development of flax industry

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