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US 7,172,855 B2Granted
Silver halide photographic light-sensitive material and package thereof
AssigneeFuji Photo Film Co., Ltd.
InventorsShoji Yasuda, Yoshihisa Tsukada
Life of this patent
Estimating the term…
Abstract
Disclosed is a silver halide photographic light-sensitive material having a layer containing a compound of the following formula and a fluorine compound, and has a gamma of 5.0 or more for the optical density range of 0.3 to 3.0: wherein R1 is alkyl or alkenyl, R2 are H, alkyl, alkenyl, aralkyl or aryl, l1 is 1–10, m1 is 1–30, n1 is 0–4, a is 0 or 1, and Z1 is OSO3M or SO3M where M is cation.
Claims20
A silver halide photographic light-sensitive material having one or more layers including at least one light-sensitive silver halide emulsion layer on a support,
- which contains a compound represented by the following formula (1) and a fluorine compound in at least one layer
- among the layers formed on the support, and has a characteristic curve drawn in orthogonal coordinates of logarithm of light exposure (x-axis) and optical density (y-axis) using equal unit lengths for the both axes, on which gamma is 5.0 or more for the optical density range of 0.3 to 3.0:
- wherein R1 represents a substituted or unsubstituted alkyl group having 6 to 25 carbon atoms or a substituted or unsubstituted alkenyl group having 6 to 25 carbon atoms, the groups of R2 may be identical or different, and represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 14 carbon atoms, a substituted or unsubstituted alkenyl group having 1 to 14 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 20 carbon atoms or a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, l1 represents an integer of 1 to 10, m1 represents an integer of 1 to 30, n1 represents an integer of 0 to 4, a represents 0 or 1, and Z1 represents OSO3M or SO3M, where M represents a cation.
Dependencies are inferred from the claim text.