First, it exists in the raw materials themselves.
The second is attached during the yarn production process.
For example, if a small amount of different-colored fibers are mixed into the raw materials, after mixing and drawing in various processes, foreign fibers in the form of single fibers will finally be formed; poor site cleaning, such as grading, will occur. The container is not clean, the semi-finished products are not properly isolated from the outside world, and they are kept naked for too long. During the production process, colored spinning varieties are arranged next to each other and isolation measures are not in place.
After the production of the previous variety, the cleaning work was not thorough enough, and flowers accumulated and hung in the channel. The spun yarn bellows flowers contained colored fibers and were put into other varieties; single fibers floating in the air Fibers drift in. It is difficult to control a single colored fiber, and it is not easy to check and remove foreign fiber blowers and self-connecting electric cleaners. Therefore, it is necessary to strengthen the control of foreign fibers:
On raw materials The foreign fiber and heterochromatic fiber sandwiched in the bag will be checked and sorted by the bag-by-package inspector and the bag-grabbing machine operator. Raw materials with a lot of foreign fibers and different-colored fibers will never be used;
Before mixing, thoroughly clean the grading chamber and discs to ensure that there are no dead corners. Before the blowroom change, ensure that there are no foreign fibers or miscellaneous flowers in the disc picking machine. The blowroom foreign fiber machine ensures that the detection rate of foreign fibers is not low. At 80%;
Clean all types of containers in a timely manner, including accumulation of waste in sliver cans, adopt isolation management measures for different types of semi-finished products and containers, and isolate machines separately , to prevent colored fibers in the air from drifting in;
In each process, the varieties should be arranged with similar colors and lights, and the machines should be adjacent. The change of the front and rear varieties requires close colors and lights;
Before changing varieties, clean the machine thoroughly to ensure that the surface of the machine and each drafting channel are smooth and free of debris. Do not slap during cleaning. Pay attention to the direction of the airflow in the workshop to prevent Flying flowers;
Strictly control product supply reserves, reduce the exposure time of semi-finished products, and prevent airborne colored fibers from floating in;
Packaging Check each yarn bobbin in time;
Rationally set the process parameters for electric cleaning to remove foreign fibers.
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