The cheese dyeing machine winds the yarn on a perforated bobbin, and then loads many bobbins into the dyeing vat. The basic operation process of cheese dyeing machine: unwinding - packing - dyeing - drying - rewinding.
1. Loose cylinder
The raw yarn is wound into a "loose bobbin" suitable for bobbin dyeing. This process is generally called loose bobbin. The winding density of the bobbin used for dyeing is much lower than that of ordinary bobbins, so "loose bobbin" is required ".
2. Caging
Caging should be even and tight. The loading of fibers should be appropriate, if it is lower than the reasonable loading, it is easy to form irregular water flow channels, that is, "short circuit" phenomenon; once it occurs, it will become more and more obvious, and will gradually make the whole cage The places where the water penetration is large are bigger, and the weak places are weaker.
3. Dyeing
The characteristic of cheese dyeing is that the dyed object is fixed and the winding is tight. The normal progress of dyeing is completely realized by the main pump instructing the dye liquor to circulate in the yarn forcibly. The circulation of the dye solution not only has the effect of accelerating the dispersion of the dye, but also has the effect of conducting heat.
4. Drying
Drying is as important as cheese preparation and dyeing. This process solves the problem of color difference and humidity uniformity inside and outside the cheese. After the cheese is dyed, it is out of the vat. Drying treatment, generally we use hot air drying. The drying time and temperature also have a certain influence on the color difference of the yarn.
5. Rewind
The difference between the rewinding here and the previous loose rewinding is that this is a tight rewinding, which is convenient for weaving fabrics in the future.
https://www.tonghuadyeingmachine.com/
