How to deal with quality problems in spinning?(2/6)
2 heterosexual fiber
The concept of heterosexual fiber refers to other fibers with different dyeing properties from cotton fiber, such as wool, hemp, silk and chemical fiber. Mixed with these different fibers with different dyeing functions, raw cotton will cause dyeing defects in the downstream processes, such as knitted fabric and woven fabric, which not only worsens the appearance quality of the real object, but also makes the spinning enterprises suffer claims and economic losses.
(1) at present, China has entered the WTO. Domestic enterprises are using different processing methods to harvest and package raw cotton around the world. There are also foreign fibers mixed in domestic raw cotton, commonly known as "three silk". It is a serious threat to the spinning quality and product quality of the downstream process of China's cotton textile enterprises. Therefore, many domestic enterprises have organized manpower to set up a workshop to pick up "three silk" It is a difficult problem to improve the appearance quality of spinning and fabric because of more labor and unstable and incomplete effect.
(2) at present, many open and clean cotton production lines are equipped with the technical equipment to remove the foreign fibers. It uses the photoelectric principle and the careful opening and loosening technology in open and clean cotton to detect and remove the foreign fibers. For example, the scfo foreign fiber detection and separation system of Germany's trutzler company is installed in the feeding part of the carding machine.
It can effectively remove a considerable part of the foreign fibers. The basic conditions of using this technology system are to separate and loosen the fibers in the opening and cleaning process, and to make the fibers free and single fiber as much as possible. In the blowing carding system, the device to remove the foreign fibers will be installed in the feeding part of the carding machine, which will produce better results. The electronic cleaning reflected in the automatic winder In terms of the number of times to cut off the foreign fibers, the number of cuts can be reduced by 50% and the efficiency of automatic winding mechanical and electrical cleaning can be improved. If the opening and cleaning system is not equipped with the device to remove the foreign fibers, the efficiency of the electronic cleaning device of the winding machine will be cut off about 40 times every 100000 M.
(3) if there is only the electronic yarn cleaner of automatic winder to remove the foreign fibers, and there is no one to open the foreign fibers cleaner, the electronic yarn cleaner will cut many times and the production efficiency of automatic winder will be low.
Only in the opening and cleaning system equipped with the equipment to remove foreign fibers, but without the electronic cleaning function of the automatic winder, the removal of foreign fibers is obviously incomplete.
Only when the foreign fiber cleaning system is installed in the opening and cleaning production, and the electronic foreign fiber cleaning device is installed in the automatic winder, the removal of the foreign fiber can be more thorough and achieve better results.
(4) there are many domestic electronic yarn cleaners for removing foreign fibers and winders for removing foreign fibers, which can be selected according to specific conditions.
