What is the recommended preliminary test?

Be sure to conduct a preliminary test under similar printing conditions before printing on the main line. The preliminary test procedure is as follows.

1. Print mirror ink on the substrate to be printed on the main line (substitutes are not acceptable) and dry under the conditions described in the catalog.
2. Conduct test on mirror effect, opacity, and adhesion, etc.
3. If it fails, adjust the printing and drying conditions to obtain satisfactory results.

Repeat the above tests until appropriate conditions are found.