Production method of cotton and wool blended bleached yarns

Abstract

The invention belongs to the technical field of spinning, and particularly relates to a production method of cotton and wool blended bleached yarns. The production method comprises the steps that cotton fibers are bleached after being spun into loose cotton rough yarns to obtain bleached cotton rough yarns; wool fibers are bleached after being spun into loose wool yarns to obtain bleached wool rough yarns; and the bleached cotton rough yarns and the bleached wool rough yarns are blended and spun to obtain blended rough yarns, the blended rough yarns are spun to obtain bleached spun yarns, andthe bleached spun yarns are subjected to spooling to obtain the cotton and wool blended bleached yarns. According to the production method of the cotton and wool blended bleached yarns, two kinds of fibers with different properties can be independently bleached, the whiteness value of the yarns is increased, the dependence on loose fiber dyeing equipment can be avoided, so that cheese dyeing factories can perform production, the process is simple, and the effect of finally increasing the whiteness value of the fabric is achieved.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a production method of cotton-wool blended bleached yarn. Background technique [0002] Cotton / wool (velvet) blended fabrics not only have the softness and comfort of cotton fibers, but also have the characteristics of moisture absorption, breathability, smoothness and elasticity of wool (velvet) fibers, and have always been the main fabrics of high-end clothing. At present, there are two main processes for producing blended bleached yarn: [0003] One is to use natural color fibers for blending, and then bleach the cheese. The process is as follows: [0004] [0005] The advantage of this method is that it can be produced by using normal spinning and cheese dyeing equipment, the spinning process is suitable for most cotton spinning enterprises, no special protection is required, and the process is simple. But its disadvantage is that the bleaching process is li...

AI Technical Summary

Problems solved by technology

[0009] Chinese patent CN 102758285A discloses a method for making color spun yarn mixed with mercerized fiber. The content of the invention includes placing the roving bobbin with dyed yarn holes on the roving frame, removing the head and bottom of the roving bobbin for mercerizing, Indicates that it requires a special roving bobbin, and only treats cotton fibers, not cotton / wool (velvet) blended fibers

[0010] Chinese patent CN 104120572A discloses a method for dyeing pure cotton with roving. The process flow is raw cotton → cleaning → carding → pre-drawing → sliver winding → combing → drawing → roving → roving poured bobbin → Dyeing and drying→spinning→winding, the roving and loose-winding process is carried out on the FIDS winding equipment model SINCRO / RFM-FC-RC P400A, the invention only involves cotton fiber, not cotton fiber and wool ( velvet) fiber blended yarn, and the way to prepare the loose roving is to perform another rewinding and pour it onto the loose tube, which is time-consuming and laborious.

[0011] The advantage of the conventional process of blended yarn bleaching is that no special equipment is required, and the production requirements are low, but the disadvantage is that the whiteness is low; the advantage of the dyed yarn bleaching process is that the whiteness is high, but the disadvantage is that special equipment for loose fiber dyeing is required, and the production requirements are low. high

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