Silver halide photographic material for laser exposure
AssigneeFuji Photo Film Co., Ltd.
InventorsMasahide Sasai, Naoki Arai
Life of this patent
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Abstract
A silver halide photographic material for laser exposure comprising at least one silver halide emulsion layer on a support, wherein said support or photographic constituent layers of said material contain an antihalation dye which exhibits a spectral absorption density of 0.4 or more before development with respect to the wavelength corresponding to the laser used and a spectral absorption density of 0.2 or more after development when the fluctuations of the average visual density excluding the support density and emulsion fog density are 0.02 or less.
Claims4
A silver halide photographic material for laser exposure comprising at least one silver halide emulsion layer on a support,
- wherein said support or photographic constituent layers of said material contain an antihalation dye which exhibits a spectral absorption density of 0.4 or more before development with respect to the wavelength corresponding to the laser to be used for exposure and a spectral absorption density of 0.2 or more after development when the fluctuations of the average visual density excluding the support density and emulsion fog density are 0.02 or less,
- wherein when the fluctuations of the average visual density, excluding the support density and the emulsion fog density, are 0.02 or less after development, the unexposed portion of said material has a blue density in the range of 0.04 to 0.30 as calculated in terms of average visual density excluding the support density and the density of dyes other than antihalation dye in the layers constituting the photographic material, and
- wherein said photographic material comprises at least one infrared-sensitive silver halide emulsion layer and at least one layer containing an emulsion obtained by dissolving a hydrophobic dye having an absorption maximum from 570 nm to 700 nm in the light wavelength range visible by the human eyes in a slightly water-soluble or water-insoluble organic solvent, followed by emulsifying and dispersing.
A silver halide photographic material for laser exposure comprising at least one silver halide emulsion layer on a support, wherein said support or photographic constituent layers contain an antihalation dye having a spectral absorption in the wavelength range of 780 nm or less which exhibits a spectral absorption density of 0.4 or more before development with respect to the wavelength corresponding to the laser used,
- wherein when fluctuations of the average visual density, excluding the support density and the emulsion fog density, are 0.02 or less after development, the spectral absorption density is 0.2 or more after development, the unexposed portion of said material has a blue density in the range of 0.04 to 0.30 as calculated in terms of average visual density excluding the support density and the density of dyes other than antihalation dye in the layers constituting the photographic material, and
- wherein said photographic material comprises at least one infrared-sensitive silver halide emulsion layer and at least one layer containing an emulsion obtained by dissolving a hydrophobic dye having an absorption maximum from 570 nm to 700 nm in the light wavelength range visible by the human eyes in a slightly water-soluble or water-insoluble organic solvent, followed by emulsifying and dispersing.
Dependencies are inferred from the claim text.