Printing machine For insoluble disperse dyes, when the concentration of inorganic salt increases, there will be more charges that are electrically negative with the adsorption layer into the adsorption layer.

When the adsorption layer charge is completely neutralized, the zeta potential in the micelle drops to zero, the electrostatic repulsive force of the micelle decreases, or even disappears completely, which greatly reduces the anti-agglomeration ability of the dispersion and stabilizes the entire dispersion system. Sexual damage, causing dye sedimentation.

In addition, an excessively high concentration of inorganic salt can easily corrode the nozzle and reduce the service life of the nozzle.

At present, the active inks commonly used in the domestic market include several colors such as green, black, magenta, blue, orange, yellow, and gray, and dilute the green and magenta color to about 15-20% to make light blue and light red.

Can meet the basic production needs, but there are still problems in the application of blocking the nozzle, hair color instability, shading is not correct, the depth is not enough, the color gamut is too small and so on.

The cause of nozzle clogging

There are reasons for the printing machine and the reasons for the dye. The main reasons for the machine are the interruption of the ink supply, the blockage of the ink mold, and the unreasonableness of the ink port of the ink cartridge.

The main reasons for dyes are dye deposition, impurities, and excessive solubility of dyes . For insoluble disperse dyes, the dye particle size is also critical, and its fine grain size requires that no more than 10 particles exceed 0.2 microns in the microscope's 0.1mm field of view.
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