What are the causes of poor colour in printing of water-based ink? How do you deal with this phenomenon?
Troubleshooting: 1. improve the drying rate of the first color; 2. color ink viscosity reduced or reduce the printing pressure; 3. lower color viscosity or improve its adhesion.
Abnormal reason: behind the 1. India multicolor overprint colors, the color is wet; 2. after printing color to make the color peeling; printing color overprint up after 3..
