Influence of the Offset Ink Formulation on the Paper Recycling Efficiency

The work presents results of investigation of the flotation process from the offset prints, where model printing inks different formulations were used. Optical preperties and dispersion of particles on handsheets were observed. Results show that handsheets achieved with vegetable based ink show similar optical properties as standard printing inks. The dispersion of dye particles per unit area do not differ much either.