Summary：The dyeing of textiles can be carried out at any stage and can be dyed in different stages of the fibers, yarns, grey cloths and garments. a. Loose fiber dyeing
The dyeing of textiles can be carried out at any stage and can be dyed in different stages of the fibers, yarns, grey cloths and garments.
a. Loose fiber dyeing: The dyeing of fibers or loose fibers prior to spinning is carried out in a large dye bath and dyed at a suitable temperature. Most of the colored spinning yarns are dyed by loose fibers (also have the effect of single dyeing of different fibers), and are often used in woollen fabrics.
b. Wool dyeing: This also belongs to the fiber dyeing before the fiber is made into a yarn, which is the same as the purpose of the bulk fiber dyeing in order to obtain a soft color mixing effect. Tops dyeing is generally used for combing wool yarns and wool fabrics.
c. Yarn dyeing: Yarn dyeing before weaving, generally used for dyeing textile fabrics, sweaters, etc. or directly using yarns (sewing thread, etc.). Yarn dyeing is the basis of dyeing.
There are three methods for dyeing conventional yarns:
1. hank dyeing - the loose hank is immersed in a special dyeing tank, which is the most costly dyeing method;
2. cheese dyeing - cheese dyed yarn wrapped around a hole in the bobbin, and then put a lot of bobbin into the dyeing cylinder, dye circulation flow, fluffy effect and softness is not as hank dyeing.
3. Warp beam dyeing - It is a large-scale package dyeing. The woven fabric must be made into warp beam (warping) before it is manufactured, and dye the entire warp yarn, such as the combination dyeing machine and the warp beam. Harness mounted dye. Because it is a warp beam, it is mostly used for dyeing woven fabrics. However, with the emergence of the drop shaft, we can finish the yarn on the dyed warp yarn into cheese yarn. This dyeing yarn has a wider range of use. For example, the indigo dyeing method is mostly used for the reduction and dyeing method, only the use of The warp beam dyeing can be well solved. If there is no beam drop, it is very difficult to achieve.