Photothermographic material
AssigneeFUJIFILM Corporation
InventorKouta Fukui
Life of this patent
Estimating the term…
Abstract
A photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, wherein 1) the binder includes a polymer latex having a monomer component represented by formula (M): CH2═CR01—CR02═CH2 Formula (M) 2) the photothermographic material includes a compound represented by formula (SA): and 3) the photothermographic material further includes a metal phthalocyanine dye represented by formula (PC-1): wherein at least one of R1, R4, R5, R8, R9, R12, R13, and R16 is an electron-attracting group. The invention provides a photothermographic material which produces an image free from unevenness in color tone, having high image quality, and is excellent in image storability.
Claims9
A photothermographic material comprising, on at least one side of a support, an image forming layer comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, wherein
- (1) the binder comprises a polymer latex having a monomer component represented by the following formula (M):
- CH2═CR01—CR02═CH2 Formula (M)
- wherein R01 and R02 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a halogen atom, or a cyano group;
- and R01 and R02 are not simultaneously a hydrogen atom;
- (2) the image forming layer comprises a compound represented by the following formula (SA):
- wherein M represents a hydrogen atom or a cation having a valency of k;
- R represents a substituent;
- n represents an integer of from 1 to 4;
- when n is 2 or more, a plurality of R may be the same or different from one another;
- k represents an integer of 1 or more;
- and when M is a hydrogen atom, k is 1;
- and
- (3) the photothermographic material further comprises a water soluble metal phthalocyanine dye represented by formula (PC-1):
- wherein, M represents a metal atom;
- R1, R4, R5, R8, R9, R12, R13, and R16 each independently represent a hydrogen atom or a substituent;
- at least one of R1, R4, R5, R8, R9, R12, R13, and R16 is a group represented by following formula (II):
- -L1-R17 Formula (II)
- wherein L1 represents a group selected from **—SO2—*, **—SO3—*, **—SO2NRN—*, **—SO—*, **—CO—*, **—CONRN—*, **—COO—*, **—COCO—*, **—COCO2—*, and **—COCONRN—*;
- ** denotes a bond with a phthalocyanine skeleton at this position, and * denotes a bond with R17 at this position;
- RN represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, a sulfonyl group, or a sulfamoyl group;
- and R17 represents an alkyl group, an aryl group, or a heterocyclic group, wherein R17 is substituted by a hydrophilic group;
- and R2, R3, R6, R7, R10, R11, R14, and R15 represent a hydrogen atom.
Dependencies are inferred from the claim text.