What if a single plastic bag needs double-sided printing?

1. On-line corona treatment was carried out on the first surface of plastic film to improve the surface tension of the film.

2. Printing the second surface of the plastic film.

3. The second side of the printed plastic film is treated with anti-sticking barrier, and the anti-sticking isolation layer can isolate the front and back sides of the film after winding, so as to avoid the ink on the front and back sides from sticking to each other.

4. Turn the plastic film so that the first surface of the plastic film becomes the surface to be printed.

5. Printing the first surface of the plastic film.