An aqueous ink-jet printing ink including at least: (a) 8-18 parts by weight (PBW) of one or more dyes selected from the group consisting of C.I. Reactive Blue 72, C.I. Reactive Red 245, C.I. Reactive Yellow 95, C.I. Reactive Orange 13 and C.I. Reactive Blue 49; (b) 15-40 PBW of a water-miscible solvent having a boiling point lower than 240°C and comprising at least 40% ethylene glycol; (c) 0.1-10 PBW of a buffer; (d) 0.01-2.5 PBW of a non-ionic surfactant; (e) 4-14 PBW of urea; (f) 0-5 PBW of biocide; (g) 0-12 PBW of a solvent having a boiling point higher than 270°C; (h) 0-10 PBW of a solvent having a boiling point in a range of from 240°C to 270°C; and (i) a balance to 100 PBW of water. Also ink-jet printing processes, ink-jet ink containers, printed substrates, ink-sets and ink-jet printers.