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    • 7. 发明授权
    • Photothermographic material
    • 光热成像材料
    • US06645714B2
    • 2003-11-11
    • US09809318
    • 2001-03-16
    • Toyohisa OyaKazunobu Katoh
    • Toyohisa OyaKazunobu Katoh
    • G03C1498
    • G03C1/49827G03C1/061G03C1/49845Y10S430/166
    • A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing agent represented by the following formula (1), (d) a binder, and (e) a phenol compound represented by the following formula (2) on the same side of a support: wherein, in the formula (1), V1 to V8 each independently represent hydrogen atom or a substituent, L represents a bridging group consisting of —CH(V9)— or —S—, and V9 represents hydrogen atom or a substituent; wherein, in the formula (2), R1 and R2 each independently represent hydrogen atom or a substituent, X1 to X3 each independently represent hydrogen atom or a substituent, provided that the substituents represented by X1 to X3 do not represent hydroxy group, and when the substituents represented by X1 to X3 are bonded to the phenol ring via nitrogen atoms, X1 to X3 represent a nitrogen-containing heterocyclic group or a group represented as —NH—C(═O)—R4 where R4 represents a substituent having 8-40 carbon atoms, or the substituents represented by R1, R2 and X1 to X3 may be bound to each other to form a ring. There is provided a photothermographic material, in particular, for photographic art, more specifically, for scanners, image setters and so forth, that shows high sensitivity, high Dmax (maximum density) and low fog and can provide images suitable for photographic art.
    • 一种光热成像材料,其至少包含(a)光敏卤化银,(b)可还原银盐,(c)由下式(1)表示的还原剂,(d)粘合剂和(e)酚化合物 在式(1)中,V 1至V 8各自独立地表示氢原子或取代基,L表示由以下式(2)组成的桥连基团: -CH(V 9) - 或-S-,V 9表示氢原子或取代基;其中,在式(2)中,R 1和R 2各自独立地表示氢原子或 取代基X 1〜X 3各自独立地表示氢原子或取代基,条件是X 1〜X 3表示的取代基不表示羟基,当X < 1〜X 3通过氮原子与酚环结合,X 1〜X 3表示含氮杂环基或表示为-NH-C(= O)-R 4的基团 >其中R 4代表 表示具有8-40个碳原子的取代基,或者由R 1,R 2和X 1至X 3表示的取代基可以彼此结合形成环。 提供了一种光热照相材料,特别是用于照相艺术,更具体地,用于扫描器,图像设定器等,其显示出高灵敏度,高Dmax(最大密度)和低雾度并且可以提供适合于摄影艺术的图像。