SOLVENT-BASED INK COMPOSITION WITH KETONE SOLVENT AND SURFACE-MODIFIED PIGMENT
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A solvent-based ink composition for a thermal inkjet printhead. The composition includes: (a) 10-80 wt. % of a compound of formula (B): [chemical expression included] wherein: R5 is a C1-6 alkyl group and R6 is a C1-6 alkyl group; or R5 and R6 are together joined to form a C3-12 cycloalkylene group; (b) 10-80 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a surface-modified pigment.