A dye represented by any one of the following general formulae: ##STR47## wherein D is a chromophore, R is a bivalent or trivalent linking group, and IM is a secondary or tertiary amine residue substituted by at least one radical selected from the group consisting of alkyl groups, a carboxyl group, salts of the carboxyl group, a sulfonic group, salts of the sulfonic group, a phosphoric group and s