1 Introduction Inkjet inks are complex mixtures specifically formulated for appearance, durability, and longevity.[1-3] They are water based solutions commonly formulated to include solvents (5–30%), pigments (1–10%), surfactants (0.1–10%), biocides (0.05–1%), buffers (0.1–0.5%), and additives such as chelating agents, solubilizers, polymeric bonders, pH buffers, electrolytes, defoamers etc.[1, 4, 5] Thermal inkjet printing uses a change in pressure caused by a heating element to propel ink...