Method of image formation

Details Method of image formation Method of image formation

1990-11-16

1993-02-09

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430509, 430267, 430949, 430615, 430502, G03C 106

Patent

active

051852322

ABSTRACT:
A method of image formation comprising imagewise exposing a silver halide photographic photosensitive material comprising a support having thereon at least two silver halide emulsion layers and which contains a hydrazine compound in the emulsion layers or in another hydrophilic colloid layer wherein the photographic speed of the emulsion layer on the side furthest from the support of the above mentioned silver halide layers is higher by 0.1 to 0.4 logE than the photographic speed of the emulsion layer which is closest to the support, through the support, and developing the imagewise exposed photosensitive material, whereby a high contrast negative image of a gamma at least 8 is obtained.

REFERENCES:
patent: 3923515 (1975-12-01), van Stappen
patent: 4447522 (1984-05-01), Hirano et al.
patent: 4746593 (1988-05-01), Kitchin et al.
patent: 4761362 (1988-08-01), Sasaoka et al.
patent: 4786587 (1988-11-01), Kuwabara
patent: 4818659 (1989-04-01), Takahashi et al.
patent: 4920034 (1990-04-01), Sasaoka et al.
patent: 4956263 (1990-09-01), Ishigaki et al.
patent: 4957849 (1990-09-01), Inoue et al.

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