A kind of polylactic acid and tencel blended yarn and spinning method

Abstract

The invention belongs to the technical field of textiles, and specifically discloses a blended yarn of polylactic acid and tencel, and also discloses a spinning method of the blended yarn. The polylactic acid and tencel blended yarn is made by blending polylactic acid staple fiber and tencel staple fiber. The polylactic acid staple fiber and tencel staple fiber are respectively processed by the cleaning process and the carding process, and then passed through the drawing process in turn. process, roving process, spun yarn process, winding process, doubling process, two-for-one twisting process to prepare the blended yarn. The blended yarn provided by the present invention effectively solves the difficulty of carding into a web by selecting the appropriate specific resistance and oil content of the polylactic acid staple fiber, and through the reasonable optimization of the blending process and process parameters. A series of problems in the blending process, such as rollers, high yarn breakage, high neps on the blackboard of the yarn, poor evenness, difficult joints in the winding process, and abnormal twisting in the two-for-one twisting process, have realized the blending of polylactic acid and Tencel Mass production of yarn.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a blended yarn of polylactic acid and tencel, and also to a spinning method of the blended yarn. Background technique [0002] Known for its complete biodegradability, polylactic acid fiber is not harmful to the human body and does not pollute the environment. It is a new generation of "green" fiber in the 21st century. Polylactic acid fibers have good biocompatibility and bioabsorbability, and can be used as medical materials in the medical field. At the same time, polylactic acid fiber combines the advantages of natural fibers and synthetic fibers, and has superior wearing properties. For example, polylactic acid fiber has excellent drapability, smoothness, moisture permeability, good heat resistance and The mite has anti-ultraviolet function, and is rich in luster and elasticity, so it also has broad application and development prospects in the fields of clothing fabrics, ho...

AI Technical Summary

Problems solved by technology

[0003] However, polylactic acid fiber has its particularity. For example, polylactic acid fiber has low glass transition temperature, poor high temperature resistance, severe static electricity, poor spinnability, high rigidity, and weak inclusion force. Therefore, it is difficult to produce high-count pure spinning and blending. Large, specifically including difficulty in forming a web in the carding process and many false neps; serious winding of top rollers and rollers in the drawing process; many broken ends in the spinning process, low speed, high neps in yarn formation, and poor evenness; winding process Difficulty in jointing; two-for-one twisting process cannot twist the thread normally; the above problems make spinning polylactic acid fiber extremely difficult and difficult for normal production

At present, the production of high-count pure and blended yarns of polylactic acid fibers has not been realized in large quantities or even in small quantities at home and abroad.

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