How to solve the anti-stick failure caused by solvent residue in gravure ink? 1. Select a solvent with an appropriate volatilization speed. The plastic film printing is to dry the ink through solvent evaporation. The volatilization speed is an important factor that determines the drying of the ink layer and affects the printing quality. The slower the solvent volatilizes, the reproducibility of the plate. The better, the more beautiful the color of the printed matter, but it is easy to stick. On the contrary, it will cause the phenomenon such as whitening of the imprint. In the continuous color printing, the solvent must be completely volatilized during the running time of the film between the two printing stations. Otherwise, in the next During station printing, the roller will stick. 2. After the film is printed, the organic solvent in the ink has not been completely volatilized in the drying system, and there is still residual heat after the film is wound, which brings the solvent remaining in the ink layer to continue to volatilize and form adhesion. 3. In hot and humid seasons, the film is wound too tightly or under pressure after printing, and the volatilization speed of the solvent in the ink depends not only on the boiling point, vapor pressure, latent heat of evaporation, etc. of the solvent, but also on the temperature, humidity, and air volume of the operating environment. Therefore, the volatilization speed of the solvent in the ink should be adjusted at any time according to the change of conditions. Flexible packaging bags: