Inkjet printing technology is still the dominant form of applying liquid dispersed pigments to the printing substrate. It uses the advanced technology of microdroplets ejected from the densely cut cartridge tapes. To make it possible, printing inks must meet a number of properties, which is a serious challenge for suppliers. The ink formulation is critical for the print quality, and the selection of appropriate ingredients has a direct impact on it. One of the most important ingredients is the K pigment in the CMYK scale. It is responsible for black printing.

By developing the technology for the production of iron (II, III) oxide nanoparticles, Wion Technology made it possible to replace the classic K pigment, which is carbon black. This opens up new paths for the improvement of printing due to the many properties our nanoparticles offer:

• size

In contrast to carbon black, iron (II, III) oxide is obtained by us through a sequence of chemical reactions, which allows for greater control of the nanosize of particles and the size distribution.

• cleanliness

For the production of iron (II, III) oxide, we use the minimum amount of substrates, finally obtaining a product of very high purity.

• functionalisation

Iron (II, III) oxide having hydroxyl groups in its structure is susceptible to encapsulation with any dispersing compounds