Recording method by use of inks

Claim 1

A recording method which comprises imagewise applying (1) an aqueous ink comprising at least one dye selected from the group consisting of the following dyes (a) through (d) onto (2) a recording medium containing at least one component selected from the group consisting of water soluble metal salts in which the metal has a valence of 2 or more, alkyl amine salts, polyamines and quaternary ammonium salts, whereby to form an image on said recording medium, (a) a pyrazolone azo dye of the following formula I ##STR7## where M + represents Li + , Na + , K + , Cs + , NH 4 + or NR 4 1+ wherein R 1 represents an alkyl group, X 1 represents F, Cl, Br, I or hydrogen, and Y 1 represents hydrogen, an alkyl group or --COO--M + ; (b) a phthalocyanine sulfonate dye of the following formula II ##STR8## where M + is the same as that defined in the formula I, and m m is an integer of 2 to 4; (c) a xanthene dye of the following formula III or IV ##STR9## where M represents Li, Na, K, Cs, NH 4 or NR 4 1 wherein R 1 represents an alkyl group, X 2 represents Br, I or Cl, and Y 2 represents Br, I or Cl; ##STR10## where M is the same as that in the formula III, and R 2 represents hydrogen or an alkyl group; (d) an azo dye of the following formula V or VI ##STR11## where n is an integer of 0 or 1, X 3 represents hydrogen or --NH 2 , Y 3 represents hydrogen or --NHR 1 wherein R 1 represents an alkyl group, Z represents hydrogen, --OH or --COOM, and R 3 represents hydrogen, an alkyl group or --SO 3 M wherein M is the same as that defined in formula III; ##STR12## wherein X 4 represents hydrogen, --SO 3 M or --COOM in which M is the same as that defined in the formula III.