Learn is to study the textile spinning staple fibre processing into a science of yarn, the yarn is generally ranged from many of the length of short fiber made by the method of splice, and made from a long continuous filament twisting together.
In the process of spinning, the first step is to clear out the defects, namely the preliminary processing of raw materials, also known as the preparation of raw materials for spinning. The types of raw materials are different, the types and properties of impurities are different, and the processing methods and processes are also different. Raw preliminary processing methods mainly include physical methods (such as cotton ginning), chemical methods (such as hemp degumming, spun silk scouring) and the combination of physical and chemical methods, such as wool washing and go to grass char). Will mess fiber processed into longitudinal and transverse of contact order, bright and clean and has a certain requirement of yarn, need the massive fiber into a single fiber state, remove of the fibrous materials exist horizontal linkages, set up the beginning and the end of the strong cohesion of vertical integration. The former is called fibrinolysis, and the latter is called collection of fibers.
The release of fibers is the complete removal of the transverse relationship between fibers and fibers. But the damage must be minimized. Collection of fiber is to make the release process of fiber to establish an orderly longitudinal connection, this connection is continuous, and should make a collection of fiber distribution is uniform, and at the same time have a certain linear density and intensity.
Fiber assembly, also need to add a certain twist. The assembly process is not completed in one time, and it can only be completed after multiple processes such as carding, drawing and twisting. The winding of a semi-finished product or finished product in a certain form for storage, transportation and processing in the next process is called winding. Winding process should be based on does not affect the yield and quality of products continuously, should strive to achieve the process between the continuous production, as much as possible to reduce the quality problem caused by the winding process.
Anyhow, spinning process generally includes raw materials preparation, opening, carding and removing impurity, blending, drafting, merger, twisting and winding function, some function is implemented through many times repeatedly.