In order to avoid the problem of dyeing of HTHP Dual Flow Fabric Dyeing Machine as much as possible, we must do the corresponding prevention work. On the one hand, it is possible to select low-foaming dyes as much as possible, and it is preferable to avoid defoaming agents because they can be stained onto the fabric.
On the other hand, the high temperature and high pressure double liquid flow fabric dyeing machine should not be overloaded, mainly causing no entanglement problem, and the entire stacking area should be fully utilized; the speed and moving speed of the fabric in the stacking area should be high unless there is special need, high temperature and high pressure dyeing machine The fabric is dewatered by centrifugation, optionally with vacuum dehydration; the highest dyeing temperature is lowered; and a smoothing agent is used in the dye bath or pretreatment.
For the dyeing process of high temperature and high pressure double liquid flow dyeing machine, the dyeing material should be selected reasonably. If the disperse dye with large difference in dyeing speed is selected, the dosage of dispersant or dye should be increased appropriately; the cloth capacity far exceeds the standard. Capacity, cloth capacity should be moderate.
In addition, the electrolyte in the dye bath should be minimized; the amount of dispersant should be increased; and the cleaning and maintenance of the equipment should be strengthened; the nozzle of the appropriate diameter should be selected according to the weight of the dye to make the spray pressure moderate, so that the two should be commensurate; When using semi-finished products, it should be handled gently to prevent impact and scratches; if it is scratched when opening, it should be opened by hand. The moderate capacity should be controlled; the liquid level of the dye solution is set too high, thus increasing the resistance between water and cloth, and the liquid level should be kept as low as possible.
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