Reason analysis: The viscosity of the water-based ink is too low or the pigment content in the ink system is small or the color purity is deviated, the ink is precipitated during printing, and the transfer is poor. Mix the original ink, adjust the viscosity, stir the ink evenly before printing, and check whether the printing plate and the ink roller are aging. 02. Unstable viscosity Reason analysis: The ink is thixotropic, foaming, and the solvent is volatile. The ink should be stirred evenly, and then an appropriate amount of defoamer (0.2%) should be added to make the volatilization gradient balance. 03. Poor dryness Reason analysis: The blotting does not dry or even sticks to the hand within the expected time. The ink viscosity is high, resulting in slow drying and poor absorption of the base paper or plastic and fabric. Dilute the ink, adjust the printing pressure to increase the blowing or drying tunnel temperature, or use fast-drying ink, or adjust the dryness. Swap Substrates Replacing Shallow Versions
What are the common problems in the use of water-based inks?
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