Dag Printing Inks Co. Manufactures Heat-Seal Coatings for Aluminium Foil. Dag Printing Inks Co. Also manufactures Flexible-packaging inks, Rotogravure and Flexographic Liquid Inks. Heat-Seal Coatings for Aluminium Foil is manufactured using state-of-the-art technology. It is resistant to soap & alkali. It has good gloss. It has excellent adhesion properties. It has multipurpose applications on various substrates. These printing inks can be used in printing on different things, like Papers, Foils, Boards, HDPE/PP woven sack and metalized PVC/PET/ paper.