The hole-opening process has a great relationship with the quality of the hole-opening, but what kind of process can open a good product, different fiber materials, different hole-opening processes, different raw materials should use different process principles.

For example, in the processing of raw cotton, the following principles are followed:

First of all, loosening, less back, reasonable blow and premature damage. When processing chemical short fibers or medium length fibers, due to the large volume of chemical fiber raw materials, no impurities, and only a small amount of fiber defects, the process principle of using multiple combs to eliminate multiple cycles is adopted. According to the open combination principle and configuration process of the cleaning machine. For raw materials that are too tight, contain water, or contain too many impurities, they should generally be pretreated. The tightly packed raw materials should be opened or opened in advance, and loosened naturally in a sufficient time; before opening the holes, the raw materials containing excess water should be dried to increase the opening effect of the raw materials. If you want to open a good product, you must strictly follow the requirements of the opening process.