Anhydrous offset printing does not use a fountain solution, which greatly reduces the discharge of volatile organic solvents. It is an environmentally friendly printing method. 1. The back is sticky

The main reasons for sticky back are too much ink, insufficient powder spraying and uneven powder spraying. Solution: 1, adjust the printing state to the best, in the case of allowing to reduce the amount of ink; 2, choose the particle diameter and distribution density appropriate powder, usually diameter of more than 20μm powder distribution density standard is 5 ~ 10 /mm2.