Recording fluid for the ink jet process

Claim 1

An ink jet process which comprises applying a recording fluid consisting essentially of 2-10% by weight of a dye, a water-miscible organic solvent, and 70 to 95% by weight of water, wherein the dye is represented by the formula I ##STR19## where An - is an anion, R 1 and R 3 are identical or different and each is independently of the other hydrogen, C 1 -C 4 -alkyl, carboxyl, C 1 -C 4 -akloxycarbonyl, carbamoyl or C 1 -C 4 -monoalkyl- or dialkyl-carbamoyl, R 2 and R 4 are identical or different and each is independently of the other hydrogen or C 1 -C 4 -alkyl which may be substituted by amino, C 1 -C 4 -monalkyl- or dialkyl-amino or by the radical ##STR20## where R 5 , R 6 and R 7 are identical or different and each is independently of the others C 1 -C 4 -alkyl and An - has the above-mentioned meaning, and X is a bridge member of the formula II or III ##STR21## where Y is C 1 -C 6 -alkylene which may be interrupted by oxygen, imino or C 1 -C 4 -alkyamino, or is --N═N--, --CO--NH-- or --SO 2 --NH--, and the rings A and B are each independently unsubstituted or substituted by C 1 -C 4 -alkyl, hydroxyl, C 1 -C 4 -alkoxy, amino, C 1 -C 4 -monoalkyl, -dialkyl-amino, hydroxysulfonyl or A and B are each independently unsubstituted or substituted benzofused rings where said substituents are as defined above.