Automated Varnish Preparation

The varnish visco-elasticity is an essential quality criterion in printing ink resins. Round Robin Test of leading printing ink resin and printing ink manufacturers document that the exactly defined varnish preparation is the key for further accurate rheological measurements of visco-
Read More

Automated Cloud Point Measurement

The cloud point temperature is a characteristic value in the quality control of synthetic resins for printing inks. Deviations in cloud point can lead to sedimentation in the varnish, differences in drying speed, loss of gloss and tack stability.   Definition of Cloud Point The c
Read More

Tack of Printing Inks and Varnishes

Tack is a measure of the forces required to split a single film into two. In case of ink, such film splitting is influenced by rheological and adhesive ink properties and the internal cohesion of the ink. Tack depends heavily on the ink formulation. Inks must be formulated to optimize
Read More

Water Emulsification Performance

The quality of lithographic printing depends on a satisfactory ink/water emulsion being formed on the plate cylinder of the press as lithography relies on a physical distinction between the hydrophobic image and hydrophilic non-image areas of the lithographic plate. With the exception
Read More