An ink including: (a) a metal chelate compound of Formula (1) or salt thereof, wherein M is nickel; ##STR00001## and (b) a liquid medium.The inks are useful for ink jet printers.
This is a 371 filing of PCT/GB2003/002135, filed May 16, 2003 and claims priority from GB No. 0217448.0, filed Jul. 27, 2002 and U.S. Provisional Application No. 60/410,809, filed Sep. 16, 2002.
