Thermally processed image recording material
AssigneeFuji Photo Film Co., Ltd.
InventorsKatsuyuki Watanabe, Masaru Takasaki, Toshihide Ezoe, Kohzaburoh Yamada, Yasuhiro Kawanishi, Masahiko Taniguchi
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Abstract
Disclosed is a thermally processed image recording material containing, on one side of a support having an image-forming layer, a silver salt of an organic acid, a reducing agent and at least one kind of a compound represented by the following formula (1): wherein X and Y represent an electron-withdrawing group and M represents a counter cation, and the conjugate acid of the enolate anion in the formula (1) has a pKa value of 3.0-6.0. This thermally processed image recording material shows low fog, high Dmax, ultrahigh contrast and good storage stability.
Claims20
A thermally processed image recording material having at least one image-forming layer on one side of a support, which contains, on the side of the support, a silver salt of an organic acid, a reducing agent and at least one compound represented by the following formula (1):
- wherein, in the above formula, X and Y each independently represent an electron-withdrawing group and M represents a counter cation, and the conjugate acid of the enolate anion in the formula (1) has a pKa value of 3.0-6.0.
The thermally processed image recording material having at least one image-forming layer on one-side of a support, which comprises, on the one-side of the support, a silver salt of an organic acid, a reducing agent, and at least one compound represented by the following formula (A) having a molecular weight of 480 or more on the side of the support having the image-forming layer:
- wherein, in the above formula, R1 and R2 each independently represent a hydrogen atom or a monovalent substituent, X1 represents an oxygen atom, a sulfur atom or a nitrogen atom, Y1 represents a group represented as —C(═O)—, —C(═S)—, —SO—, —SO2—, —C(═NR3)— or —(R4)C═N— where R3 and R4 each independently represent a hydrogen atom or a substituent, and Z1 represents a nonmetallic atomic group that can form a 5- to 7-membered ring together with X1 and Y1, provided that R1 and R2 do not bind to each other to form a ring structure.
Dependencies are inferred from the claim text.