Anti-bacterial aqueous ink compositions comprising self-dispersed sulfonated polyester-silver nanoparticle composites

摘要

An aqueous ink composition including water; an optional co-solvent; an optional colorant; and a composite comprising a sulfonated polyester matrix having a plurality of silver nanoparticles dispersed within the matrix. A process including incorporating the aqueous ink into an ink jet printing apparatus; ejecting droplets of ink in an imagewise pattern onto an intermediate transfer member or directly onto a final image receiving substrate; optionally, heating the image to partially or completely remove solvents; and optionally, when an intermediate transfer member is used, transferring the ink in the imagewise pattern from the intermediate transfer member to a final recording substrate.

主权项

1. An aqueous ink composition comprising:
water; an optional co-solvent; an optional colorant; and a composite comprising a sulfonated polyester matrix having a plurality of silver nanoparticles dispersed within the matrix.