Pre-spinning pretreatment process of polypropylene fiber and blended yarn thereof

Abstract

The invention discloses a pre-spinning pretreatment process of polypropylene fiber and blended yarn thereof, and belongs to the technical field of spinning. The pre-spinning pretreatment process comprises the following steps of spraying a mixed solution formed by mixing an antistatic agent, industrial alcohol and water into polypropylene fiber or a polypropylene fiber mixture, covering for 24 + / -2hours, and spinning the polypropylene fiber or the polypropylene fiber mixture. According to the pre-spinning pretreatment process, the antistatic agent can uniformly permeate into the polypropylenefiber and the polypropylene fiber mixture along with the full volatilization of alcohol and warm water, so that the antistatic performance of a raw material is improved, the spinnability of the raw material is improved, the phenomena of layer sticking, net falling, cotton returning and the like in coiling and slivering of blowing and carding procedures are avoided, the smooth operation of the whole spinning process is guaranteed, and the spinning production efficiency and the yarn quality are improved.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a pre-processing technology for pre-spinning and production of fiber raw materials of blended yarns. Background technique [0002] Polypropylene is one of the "five major fibers" of synthetic fibers (polyester, acrylic, nylon, vinylon and polypropylene), with a specific gravity of only 0.91g / cm 3 , is the lightest fiber among commonly used fibers. [0003] At present, the trend of clothing is developing in the direction of lightweight. Due to the small proportion of polypropylene fiber, the fabric made is also light, which can make human body activities easier. The hygroscopicity of polypropylene fiber is very low, and the moisture regain is about 0 under normal temperature and humidity. But it has a strong moisture removal effect, that is, the wicking effect. It has the unique property of conducting warm water vapor, so that the moisture can be quickly and effect...

AI Technical Summary

Problems solved by technology

[0004] It is precisely because of the low moisture regain of polypropylene fiber that static electricity is easily generated during the spinning process, and it is difficult to produce in the cleaning and carding process.

Therefore, before the current production of polypropylene pure spinning or blended yarn, antistatic agents and warm water are often mixed in a certain proportion to humidify the polypropylene raw materials. This method can improve the spinnability of polypropylene fibers to a certain extent, but due to The antistatic agent in this method is not easy to penetrate evenly on the surface of the polypropylene fiber, so that there are still sticky layers, net dropping, and back flowers when cleaning, carding, coiling, and slivering. Not high

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