Process for carded polyester and cotton blending differential white and simple staining yarn

Abstract

The invention relates to the cotton manufacturing industry, in particular to a process for carded polyester cotton blending differential white and simple staining yarn. Process innovation is carried out on an existing polyester and cotton blending process technology, when blending rolls of polyester fibers and cotton fibers enter a carding purified cotton machine table for production, the blending rolls and blending card silvers are quantitative and are mastered in a proper under-weight mode, polyester and cotton are fully carded, and the phenomena of white silks and white spots do not happen easily after simple staining is carried out on cloth or the yarn. The problem of full carding of the polyester is solved, meanwhile, the polyester (including the cotton) is fully carded due to the fact that the blending rolls are not prone to being wound on cylinders in the production process, and product quality is improved.

Description

technical field [0001] The invention relates to the cotton textile industry, in particular to a process for carding polyester-cotton blended differentially blanked and single-dyed yarns. Background technique [0002] Since my country's reform and opening up, the national economy has grown rapidly, and "scientific and technological innovation, independent innovation" has become the mainstream of my country's current industrial development. my country's industry is gradually developing in the direction of intensive, energy-saving, emission-reducing, and low-carbon. With the improvement of the quality of human life and the change of aesthetic concepts in recent years, more and more people pay more and more attention to the effect of blended yarn and the effect of woven blank space. The southeast coast of my country (Fujian Shishi) and foreign countries (Japan, Korea, Customers in Europe and the United States are increasingly demanding polyester-cotton yarns and fabrics that only...

AI Technical Summary

Problems solved by technology

The process route of traditional polyester-cotton carded yarn (as shown in the attached figure), it can be seen from the process route in the attached figure: the blending of polyester and cotton is completed by drawing, and the single dyeing blank and single dyeing produced by the traditional process route Hemp gray yarn has two fatal weaknesses. One is that the blending ratio and the absolute value range differ greatly. Even if the blending ratio reaches the national standard ±1.5%, the absolute value range is controlled within <3%, and the color of the produced product after dyeing Obviously, economic loss caused by failure to meet customer requirements

The second is that after the pure polyester staple fiber passes through the carding process, it cannot be carded into a single fiber state due to the insufficient carding degree, and the electrostatic phenomenon is easy to produce polyester neps, so that white silk (polyester) exists after single dyeing of needles and woven gray fabrics. Unevenness and white star (polyester neps) phenomenon

Even if the speed of each part of carding and the configuration of card clothing are reasonable, the reliability of product quality cannot be effectively guaranteed, and uneven white silk and white stars may still occur.

In addition, the original carded polyester-cotton blended yarn refers to the standard formulated for combed polyester-cotton blended yarn (national standard GB / T5324-2099), and its blending ratio requirements do not apply to white yarn.

At present, there is no national standard for blank yarn, but the market demand forces us to use our brains and actively explore the production process of single-dyed, blank and other special yarns without standards.

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