Discussion On Spinning Process Of Natural Colored Cotton

　　 Natural colored cotton Without chemical dyeing, the products are beneficial to health and environmental protection, and also reduce the processing cost and save energy. The clothes made of it are comfortable and natural, harmless to human body and widely used. They are especially suitable for making clothes that are directly exposed to the skin, such as baby products, all kinds of underwear pajamas, sportswear and women's hygiene products.

The main length of the colored cotton fiber is shorter, the fineness of fiber is finer, the strength is lower, the impurity content is higher, the micron value is lower, and the spinnability is less than that of the white cotton. In order to increase its spinnability, it is blended with 70% of this white cotton, and the varieties are colored cotton 30/70 CJl8.5tex. Comparison of the properties between colored cotton and white cotton. Spinning process. Model A002C automatic cotton grabbing machine, A035B type cotton mixer, A036 type porcupine opener, A092 double cotton box feeder machine, A076C type coiler, A186D carding machine, A272F drawing frame A191. B type winder, A201E comber, FA326 drawing frame, JWFl415 roving frame, 1293M spinning frame (transformation type) to AC338 automatic winding machine.

Cleaning process. Because of the high sugar content of colored cotton, in order to prevent the occurrence of sticky rolls and roll rollers, a proper amount of sugar removing agent is added to the colored cotton during the cleaning process. Aiming at the characteristics of short length, fine fineness, high impurity content and poor strength of colored cotton fibers, we should adopt the technological principle of "grasping frequently, grasping less, combing less, and mixing fully" in the cotton cleaning process. We should properly reduce the speed of each driver and prevent the speed from being too fast.

take Colored cotton fiber Bunting and adding neps. It is necessary to reduce the distance between the hatchet and the dust bar, increase the distance between the dust rods and increase the noil, thus increasing the impurity removal effect. Because of the high impurity content of colored cotton, 70% of the large impurities need to be removed from the flowers to reduce the load of carding. In order to avoid mixing the white cotton and the colored cotton in the cotton picker, we should use the white cotton and colored cotton to separate the process into the cleaning process. In the cotton blends, the mixing ratio is quite sufficient, but the blending ratio is not easy to master. In order to achieve the accurate blending ratio, a mixing method is adopted in the pre drawing process. In order to further optimize the process and improve the quality of semi-finished products, we have experimentation on the speed of each part of the flower cleaning process.

Spinning process is the last process and key process of spinning, so the process configuration of spinning is very important, including the reasonable selection of steel collar, travellers, hardness of cots. These are very important for reducing hairiness, reducing broken ends and improving the level of sliver. The size of roller and the distribution of drawing ratio have a certain effect on yarn quality. Before and after adjustment, the process parameters and spinning quality indicators are shown in Table 5.

After adjusting the process, the indexes of spinning have improved. Proper reduction of drafting in the back area of the spinning area and bringing into play the role of the main draft area will help to improve the evenness of the yarn, but not too small. If the draft area is too small, the load in the main drafting area will be increased, and the phenomenon of "spitting hard head" will occur easily, so that the roving should not be drafted. In drafting distribution, the drafting ability of the main drafting area should be taken into account. In the allowable range of the main drafting ability, the drafting of the rear zone should be reduced appropriately so as to reduce the evenness of the drafts. Otherwise, it will backfire. Not only will it fail to improve, but it will also lead to difficult operation of spinning production. The AC338 automatic winding machine is used in the winding process. The speed of the drum is controlled at 1300r/min, the speed is too fast, the hairiness increases rapidly, and the velocity of the drum is directly proportional to the increase of hairiness. Considering the output, we should properly reduce the drum speed.

The spinning technology of natural colored cotton is a new technology, which is restricted by various factors, and the output of colored cotton is not too large. Due to some special characteristics of colored cotton, its processing method is different from that of white cotton. In the future spinning process, we should constantly grope for, do more experiments and carefully choose. Spinning process In this way, the quality level of colored cotton varieties can be improved continuously.