Ink-jet overcoats including latex polymers and inorganic nano particles

摘要

The present disclosure is drawn to a nanoparticle containing overcoat composition for use in ink jet printing. The composition can include a liquid vehicle and a composite latex particulate. The composite latex particulate can include inorganic nanoparticles at least partially encapsulated by a polymer. The inorganic nanoparticles can be silica, titania, alumina, zinc oxide, silicates, oxides of indium and tin, and combinations thereof. The inorganic nanoparticles can comprise from about 1 wt % to about 20 wt % of the composite latex particulate. The overcoat composition can be used to improve the properties of ink-jetted images.

主权项

1. An inorganic nanoparticle containing overcoat composition for use in ink jet printing, comprising:
a liquid vehicle, a composite latex particulate, said composite latex particulate comprising inorganic nanoparticles at least partially encapsulated by a polymer, wherein the polymer comprises polymerized monomers including a hydrophobic monomer and an acid containing monomer, the acid containing monomer being present at from 0.1 wt % to 20 wt % of the polymerized monomers, said inorganic particulates selected from the group consisting of silica, titania, alumina, zinc oxide, silicates, oxides of indium and tin, and combinations thereof, wherein the inorganic nanoparticle comprises 1 wt % to 70 wt % of the composite latex particulate, and wherein the overcoat composition when printed is transparent or translucent.