Ester-Solvent Printing Ink,print OPP(CPP,BOPP),PE, ... -layers inner printing. Characcter:1. No benzene , no ketone solvent ,main component is ester solvent, suitable for enviormental demand.2. ... This series of ink is PU glue series of ink, ester-solvent is ture solvent; To ensure good print ability, ... , and then laminate ,it will improve laminating degree. Ester-solvent Gravure Inner Printing Ink-PE Film