Not only is it difficult to remove during the textile process, but it can also be broken or cut into shorter, finer and more fibrous fine spots in the cleaning process, which can degrade the quality of the cotton products and cause uneven dyeing of the fabric. Affect the appearance. The elimination of foreign fibers has always plagued textile companies. Due to the shortage of labor resources and the rise in wage costs, artificial selection of foreign fibers is gradually being replaced by intelligent instruments or equipment. At present, enterprises generally control raw cotton, and the process of cleaning is performed. The machine processing and winding processes are strictly controlled during the three phases of the yarn cleaning process, so as to maximize the elimination of foreign fiber influences.
1. Strictly control the source of raw cotton
To solve the problem of foreign fibers, we must first control the raw cotton. The total amount of foreign fibers in the raw cotton directly affects the clearance rate in the production process and the amount of foreign fiber in the yarn. A supplier of raw cotton with good foreign fiber control and high quality reputation should be sought to ensure the quality of raw cotton. Secondly, after the raw cotton is introduced into the plant, the raw cotton shall be subject to regular physical index inspection, and the foreign fiber content in the raw cotton shall be sampled, and the classification of the raw cotton containing foreign fiber in each producing area and the control standard of the raw cotton foreign fiber formulated by the company shall be adopted. The raw cotton purchased is classified according to the content of foreign fiber in order to match the cotton.
2. Foreign fiber machine removes foreign fiber
At home and abroad, foreign fiber detection in the cotton cleaning process has two major types of detection methods: photoelectric detection and ultrasonic detection. The photoelectric type is divided into photoelectric tube and CCD. The main features are as follows:
In practical applications, due to many factors such as blocking, wrapping, and noise of cotton, although foreign fiber machines are used, there are still foreign fibers that have leaked and the detection rate is not high. Therefore, the company began to implement "first-line two machines," that is, two different types of foreign fiber machines used in series, through the second opening and secondary detection to solve the problem of foreign fiber shielding, and further improve the effect of foreign fiber removal. After the first time the cotton passed through the foreign fiber machine, most of the three wires were removed. However, some of the three wires that were hidden in the corner, wrapped in cotton, and blocked by the cotton could not be removed. The cotton flow passed through the foreign fiber machine for the second time and was thoroughly mixed by the cotton box. Afterwards, re-open it to ensure that the three wires that have escaped into the corners spread evenly and clear the three wires.
3 , from the network of clear yarn and fiber to the last one off
The automatic yarn winding machine is equipped with an electronic yarn clearer with the function of detecting colored heterochromatic fibers. When the yarn is found after the foreign fibers are removed, the foreign yarn can be effectively removed. It is based on the original photoelectric electronic clearer based on an additional photoelectric foreign fiber detection device. This photoelectric specializes in the detection of colored foreign fibers. Not only can remove colored and foreign fibers, but also can remove colorless foreign fibers, which can solve the problem of the foreign fiber of bleached yarn.
The control methods and effectiveness of the spinning mills on foreign fibers are limited. The fundamental approach to solve the foreign fibers is to strengthen the management of the cotton at the stages of planting, harvesting and processing, and avoid mixing of foreign fibers. It is hoped that the domestic cotton can be picked and processed in the linking process. As soon as possible to solve the problem of foreign fiber mixing, improve the overall quality of domestic cotton.
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