A kind of production method of composite yarn with gray effect

Abstract

The invention provides a method for producing composite yarn with gray effect, comprising: S1, performing an opening and cleaning process on raw cotton short fibers to make cotton bundles; mixing dyes, polyacrylonitrile and solvents to obtain mixed yarns Silk solution; S2, carding the cotton bundle obtained in step S1, during the process of carding to form a primary color cotton web, performing electrospinning of the mixed spinning solution, so that the formed colored nanofibers are combined with the primary color cotton web , to make a composite sliver; S3, sequentially combing, drawing, roving and spun the composite sliver obtained in step S2 to obtain a composite yarn with gray effect. In the process of cotton spinning and carding, the present invention directly mixes the colored polyacrylonitrile nanofibers produced by electrospinning into the primary color cotton web, and finally goes through the spinning process to produce a composite polyacrylonitrile fiber with a special gray effect. yarn. The mixing process in the production of the invention is simpler and more efficient, greatly shortens the technological process and reduces the cost.

Description

technical field [0001] The invention relates to the technical field of gray gray yarn, in particular to a method for producing composite yarn with gray gray effect. Background technique [0002] Natural-colored yarn and dyed yarn are two traditional types of yarn. Dyed yarn is usually dyed into the required color on the dyeing machine in the form of bobbins or skeins. The melange yarn is a newly developed novel color yarn. It is a yarn made by blending natural fibers and chemical fibers dyed into different colors and properties. It does not have special color and performance. In a broad sense, gray yarn is monochromatic melange yarn, which refers to the yarn made by blending fibers dyed into a single color and natural color fibers. In the narrow sense, "gray gray yarn" is made of black dyed fiber and natural color fiber blended. It is one of the most common mixed-color yarns. Because its appearance color is similar to the ashes of a burnt cigarette, it is intuitively calle...

AI Technical Summary

Problems solved by technology

In the production process of traditional pure cotton gray yarn, some loose fibers need to be dyed, washed, and dried, which makes the production cycle of the whole gray yarn at least twice as long as that of conventional yarn, which increases the cost , not conducive to industrial scale application

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