A black ink-jet printing ink comprising:
a) from 9 to 11.5 parts of C.I. Reactive Black 39;
b) from 5 to 7.5 parts of C.I. Reactive Brown 11 and/or C.I. Reactive Yellow 95;
c) from 2.5 to 4 parts of C.I. Reactive Orange 12 and/or C.I. Reactive Orange 13;
d) from 0.1 to 10 parts of a buffer;
e) from 15 to 30 parts of ethylene glycol;
f) from 0 to 10 parts of a water miscible solvent;
g) from 0.01 to 2.5 parts of a non-ionic surfactant;
h) from 4 to 14 parts of urea;
i) from 0 to 5 parts of biocide; and
j) the balance to 100 parts water. Also an ink-jet printing process, a multicolour ink-set and printed substrates.