Photothermographic material
OwnerTakeshi Sampeiinventor
Life of this patent
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Abstract
A photothermographic material is disclosed, comprising a support, a silver halide, an organic silver salt and a reducing agent, wherein the photothermographic material meets the following requirement: γ21/γ0>0.7 where γ0 and γ21 are each a slope of a straight line connecting densities of 0.1 and 2.5 on a characteristic curve obtained when the photographic material is subjected to thermal development at 120° C. for 25 sec., and at 118° C. for 25 sec., respectively.
Claims20
A photothermographic material comprising a support, a silver halide, an organic silver salt and a reducing agent, wherein the photothermographic material meets the following requirement:
- γ21/γ0>0.7
- wherein γ0 is a gamma value obtained when the photographic material is subjected to thermal development at 120° C. for 25 sec., and γ21 is a gamma value obtained when the photographic material is subjected to thermal development at 118° C. for 25 sec., provided that the gamma value is represented by a slope of a straight line connecting densities of 0.1 and 2.5 on a characteristic curve obtained when the photographic material is subjected to the thermal development.
An image forming method of a photothermographic material comprising the steps of:
- imagewise exposing the photothermographic material to a laser, and subjecting the exposed photothermographic material to thermal development by the use of an automatic thermal processor,
- wherein the photothermographic material comprising a support, a silver halide, an organic silver salt and a reducing agent, wherein the photothermographic material meets the following requirement:
- γ21/γ0>0.7
- wherein γ0 is a gamma value obtained when the photographic material is subjected to thermal development at 120° C. for 25 sec., and γ21 is a gamma value obtained when the photographic material is subjected to thermal development at 118° C. for 25 sec., provided that the gamma value is represented by a slope of a straight line connecting densities of 0.1 and 2.5 on a characteristic curve obtained when the photographic material is subjected to the thermal development.
Dependencies are inferred from the claim text.