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Ink-jet Inks Containing Metal Nanoparticles
Compositions for use in ink jet printing onto a substrate comprising a water based dispersion including metallic nano-particles and appropriate stabilizers. Also disclosed are methods for the production of said compositions and methods for their use in ink jet printing onto suitable substrates.
Method Of Forming Aqueous-based Dispersion Of Metal Nanoparticles
The invention relates to a method for preparing an aqueous-based dispersion of metal nanoparticles comprising: (a) providing an aqueous suspension of a metal salt; (b) pre-reducing the metal salt suspension by a water soluble polymer capable of metal reduction to form a metal nuclei; and (c) adding chemical reducer to form metal nanoparticles, and to compositions such as ink comprising such dispersions.