Patent Number: 6,165,707

Title: Photothermographic or thermographic image-forming material

Abstract: An image-forming material comprising a support and a constituent layer(s) comprising at least (a) a thermographic image-forming layer containing a reducible silver salt, a reducing agent of the reducible silver salt and a binder or (b) a photothermographic image-forming layer containing a light-sensitive silver halide as a photocatalyst, reducible silver salt, a reducing agent of the reducible silver salt and a binder, wherein the image-forming material comprises a compound represented by formula (I-1) or (II-1) in at least one constituent layer: ##STR1## wherein R represents a secondary alkyl group or a cycloalkyl group; and M.sup.1 and M.sup.2 each represents a hydrogen atom, a metal ion or an ammonium ion; ##STR2## wherein R.sup.1 represents a secondary alkyl group, a cycloalkyl group, an aryl group, or a primary alkyl group substituted with a substituent bonded via a hetero atom; and M.sup.1 and M.sup.2 each represents a hydrogen atom, a metal ion or an ammonium ion.

Inventors: Hirano; Shigeo (Minami Ashigara, JP), Toda; Satoru (Minami Ashigara, JP), Taniguchi; Masahiko (Minami Ashigara, JP), Suzuki; Hiroyuki (Minami Ashigara, JP)

Assignee: Fuji Photo Film Co., Ltd.

International Classification: G03C 1/498 (20060101); G03C 001/498 (); G03C 001/34 ()

Expiration Date: 12/26/2013