Hemp flame-retardant viscose blending and spinning process

Abstract

The invention discloses a hemp flame-retardant viscose blending and spinning process which is characterized in that hemps are pretreated, humidified, preserved and then directly blended with flame-retardant viscose fibers. By the aid of carding procedures, lower piles and static electricity are reduced, and cotton roll sticking is prevented. Three-path drawing is adopted, and the weight unevennessof slivers is reduced. By the aid of roving procedures, fluffing of cotton slivers and roving slivers is prevented, and the finish degree of a spinning channel and all components is improved. By theaid of spinning procedures, spindle speed is reduced, and roller gauge is properly enlarged. Spooling procedures are preferably electric cleaning procedures. Hemp flame-retardant viscose blended yarnsproduced by the process are good in quality, compact in yarn structure, fewer in hairiness, smooth in appearance, good in wear resistance, soft in hand feeling and good in breathability, drapability,creasing resistance and pilling resistance and can replace threads. Yarn hairiness, evenness and force indexes are greatly improved, and a woven fabric can be used for various flame-retardant garments and flame-retardant decorative materials.

Description

technical field [0001] The invention relates to the textile field, in particular to a production process of a novel hemp-cotton blended yarn. Background technique [0002] Hemp fiber is a natural plant with good hygroscopicity, comfort, drape and stiffness and good dyeability. In addition, it can be blended with cotton, wool, hemp, nitrile, polyester, etc. According to people's different grade requirements, it can be spun into All kinds of new textile products meet people's pursuit of "clear, cool and new" fashion requirements for environmental protection and health care. Flame-retardant viscose fiber uses renewable plant cellulose as raw material, flame retardant is added during the production process, and the pre-spinning blending technology is adopted, which not only ensures the fiber texture is soft and smooth, but also realizes permanent flame retardancy, low smoke, and other characteristics. It can be widely used in flame-retardant clothing such as protective clothin...

AI Technical Summary

Problems solved by technology

Although flame-retardant viscose fiber has some properties of viscose fiber, there are differences. The following problems exist in the production process: 1. Flame-retardant viscose fiber is prone to static electricity during the production process, and the phenomenon of winding rollers, top rollers, and aprons Serious, affecting normal production and product quality; 2. The strength is lower than that of cotton fiber, the number of fiber crimps is less, the cohesion is poor, it is easy to slip, it is difficult to card into a web, and the yarn strength is low; 3. The drawing process is easy to block; 4. Roving spun yarn is prone to hard ends