Argon laser flash exposure of spectrally sensitized silver halide photographic material

Claim 1

A process for forming an image by use of a silver halide photographic material comprising a silver halide photographic emulsion layer to be used for argon laser beam exposure which process comprises imagewise exposing the photographic material to argon laser beam light for 10 -5 to 10 -7 second, and developing said material said photographic emulsion layer comprising at least one sensitizing dye represented by the following formula: ##STR4## wherein Z, when taken together with the atoms to which it is attached, form a heterocyclic nucleus selected from the group consisting of a pyridine nucleus, a pyrroline nucleus, an oxazole nucleus, a thiazole nucleus and a selenazole nucleus, said nuclei having a substituent or substituents selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, and aryl or said nuclei are fused with a benzene or naphthalene ring which ring can have a substituent or substituents selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, and halogen; Q, when taken together with the atoms to which it is attached, form a heterocyclic nucleus selected from the group consisting of a rhodanine nucleus, a thiohydantoin nucleus, a thiooxazolidinedione nucleus and a thioselenazolidinedione nucleus, said nuclei having a substituent or substituents selected from the group consisting of lower alkyl, lower alkoxy, sulfoalkyl, carboxyalkyl, hydroxyalkyl, allyl and aryl; R is selected from the group consisting of alkyl, alkenyl, aryl, substituted alkyl wherein said substituent is selected from the group consisting of β-hydroxyethyl and β-carboxyethyl; and n is an integer of 0 or --1.