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An ink composition for utilization in ink-jet printing is provided which comprises an aqueous medium, a metallized azo red pigment and, as a sequestering agent, an alkali metal, an alkaline earth metal or an ammonium salt of a linear aliphatic substituted glycine such as a salt of ethylene diamine t

An ink composition for utilization in ink-jet printing is provided which comprises an aqueous medium, a metallized azo red pigment and, as a sequestering agent, an alkali metal, an alkaline earth metal or an ammonium salt of a linear aliphatic substituted glycine such as a salt of ethylene diamine tetraacetic acid or nitrilo triacetic acid. The composition has been found to remain stable for extended periods of time.

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A stable ink jet ink having a viscosity from about 1 to about 10 centipoise and comprising a dispersant, from 1 to 20 wt/% of a metallized azo red pigment and 0.5 to 10 wt/% of a sequestering agent selected from the group consisting of an alkali metal, an alkaline earth metal or an ammonium salt of

A stable ink jet ink having a viscosity from about 1 to about 10 centipoise and comprising a dispersant, from 1 to 20 wt/% of a metallized azo red pigment and 0.5 to 10 wt/% of a sequestering agent selected from the group consisting of an alkali metal, an alkaline earth metal or an ammonium salt of a linear aliphatic substituted glycine and water.