Multi-component functional polyurethane black ink and production method thereof

The invention relates to the technical field of ink, and discloses a multi-component functional polyurethane black ink and a production method thereof, the polyurethane black ink comprises the following raw materials: isophorone diisocyanate, polycarbonate diol, dibutyltin dilaurate, modified carbon black, a chain extender, a composite additive and a defoaming agent; the surface of the carbon black is modified, so that the carbon black is crosslinked with a polyurethane dispersion, the bonding strength of the polyurethane black ink is improved, quaternary ammonium salt cations are loaded on the surface of the carbon black, and modified carbon black particles repel each other under the action of electrostatic repulsive force, can be uniformly dispersed in a matrix and are not easy to form aggregates; the composite additive is prepared by modifying the vinyl MQ silicon resin, so that the high temperature resistance of the polyurethane black ink is improved, the service life of the polyurethane black ink is prol