A kind of method of combed cotton type ramie spinning

Abstract

The invention relates to a method for spinning cotton-combed ramie. The method includes the steps that opening, ramie combing, pre-drawing, combing, gilling and stretch breaking are performed on the ramie, and then the processes of drawing, roving and spinning are performed, so that ramie spun yarns are obtained. The stretch breaking is performed on conventional ramie strips after combing so that ramie fibers in the ramie strips can be stretched and broken into cotton type fibers in length, the quality of stretch breaking is improved, the strips after the stretch breaking can be directly machined on cotton spinning equipment with high yield and good quality, and improving of spinning efficiency and the quality of the spun yarns is facilitated.

Description

technical field [0001] The invention belongs to the field of preparation of ramie spinning, in particular to a method for combing cotton-type ramie spinning. Background technique [0002] The traditional ramie spinning process is: (fine dry hemp) → soft hemp → opening → combing hemp → pre-combing (2 passes) → combing → needle combing (4 passes) → roving → spun yarn. Because there are a large number of ultra-long and double-length fibers in ramie fibers, and the fiber lengths are seriously uneven, the traditional ramie spinning process is complicated, the process is long, the waste of raw materials is serious, and the quality of the yarn is not high. [0003] In "Ramie stretch-cut spinning processing method" (ZL200410016663.9), "A ramie spinning processing method" (ZL200310108414.8), "Roller needle plate mixed type ramie stretch-cut spinning equipment" (ZL200510110059.7), etc. In the patents, a new ramie spinning method is proposed, that is, stretch-cut spinning. ) → roving...

AI Technical Summary

Problems solved by technology

However, because it directly adopts lean hemp stretching, especially when the stretching distance is shortened, the burden of stretching is heavier than that in the above-mentioned patent, so a higher top roller must be used for pressure, and this It will lead to further aggravation of mechanical wear, and there will be more hard strips and doubling of the stretch-cut strips, which will affect the smooth progress of the stretch-cut process and subsequent spinning and the yarn quality of ramie yarn

In addition, in the production of combed ramie yarn in the patent, cotton-type combing machines should be used for stretch-cut ramie slivers. On the one hand, the needle rows of cotton-type combing machines are not adaptable to thick and hard ramie fibers. On the one hand, the current cotton combing mainly processes fibers with a length of less than 35mm, and it is difficult to effectively process fibers with a length of 35-50mm, which will affect the quality of its yarn formation and the smooth progress of the spinning process

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