INK JET PRINTING WITH FUNCTION INK WITH NANOPARTICLES Russian patent published in 2014 - IPC B41J2/35 

FIELD: printing industry.

SUBSTANCE: invention relates to a method and device for applying ink to the carrier (14), comprising a nozzle (20) defining an outlet of ink. Part of the nozzle is electrically conductive. The first voltage source applies a first potential (V1) to the outlet nozzle (20). One or more auxiliary electrodes are located near the outlet nozzle (20), and the second voltage source applies a second potential (V2) to the auxiliary electrodes. The device comprises a piezoelectric or thermal actuator for ejecting ink from the nozzle (20) towards the target area on the carrier (14), the ink comprises a liquid diluent (10) and pigment particles (12) dispersed in the diluent. At least pigment particles (12) are electrically charged, usually due to the applied potentials. In one version of the invention, the auxiliary electrode is located coaxially around the electrode formed by the nozzle (20). In another version of the invention, the auxiliary electrode is located behind the nozzle (20) on a common axis with the electrode formed by the nozzle.

EFFECT: providing concentration of the pigment particles in the target area so that a certain number of pigment particles is deposited in the target area having a higher concentration than the concentration of the pigment particles in the ink.

28 cl, 6 dwg