Spooling-free yarn-dyeing bobbin

Abstract

The invention discloses a spooling-free yarn-dyeing bobbin, which comprises a hollow barrel and a plurality of yarn-dyeing holes formed in the barrel; the vertical section of the inner surface of the barrel is rectangular; the outer surface of the barrel consists of an upper part with a trapezoidal vertical section and a lower part with a trapezoidal vertical section; and the lower part is provided with a plurality of annular grooves. The spooling-free yarn-dyeing bobbin has the advantages that: a problem of unwinding of an inner layer of cheese can be solved, a requirement for widely promoting a spooling-free technology is met, a production period is shortened, and energy is saved.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a yarn dyeing bobbin for exempting winding. Background technique [0002] Yarn-dyed fabrics are becoming more and more popular among consumers because of their various colors and clear and three-dimensional features, especially in high-end pure cotton shirts, yarn-dyed fabrics play a pivotal role. Yarn-dyed fabrics are generally composed of warp yarns and weft yarns, and the required yarns are dyed into the required colors before weaving. [0003] The preparation process of the existing weft yarn is generally: bobbin-loose yarn-dyeing-winding-weaving; wherein the purpose of the winding process is to convert the parallel bobbin after dyeing into a conical bobbin for easy unwinding. In order to save the winding process and make the weft yarn bobbin after dyeing yarn can be directly used for weaving, some dyed yarn bobbins that are convenient for dyeing and unwinding h...

AI Technical Summary

Problems solved by technology

In order to save the winding process and make the weft yarn bobbins after dyeing yarns can be directly used for weaving, some yarn dyeing bobbins that are convenient for dyeing and unwinding have appeared in the prior art. The basic structure of these dyeing bobbins is Cone shape, in the actual production process, the inner yarn of the package yarn after dyeing is squeezed by the outer yarn, and the stress of the inner yarn after dyeing is relaxed during the wet treatment process, resulting in inner yarn The thread is loosely distributed on the surface of the bobbin. During the unwinding process, the inner layer yarn is subjected to the friction of the unwinding yarn segment, and gradually slips from the large end to the small end of the bobbin, resulting in the inner layer yarn being pulled from the bobbin as a whole. Tube surface slipping

Due to the failure of the inner layer yarn to unwind smoothly, a large amount of weft delamination of the inner layer yarn is caused, which not only affects the weaving efficiency, but also affects the quality of the cloth surface. Therefore, the existing winding-free dyed yarn bobbin has not been able to be used in a large area.

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