Process for forming direct positive color image

Details Process for forming direct positive color image Process for forming direct positive color image

1989-02-23

1990-06-12

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430380, 430406, 430409, 430410, 430445, 430489, 430547, 430601, 430607, G03C 524, G03C 726

Patent

active

049332651

ABSTRACT:
A process for forming a direct positive color image is disclosed, the process comprising imagewise exposing a photosensitive material containing at least one emulsion layer of silver halide of internal latent image type, which has not been preliminarily fogged, and a color image-forming coupler; developing said material using a surface developing solution containing an aromatic primary amine color developing agent in the presence of a nucleating agent and/or in the condition that fogging exposure is carried out prior to the developing step or during the developing step; bleaching; and fixing, wherein said color coupler is a compound which is in itself substantially nondiffusible, and capable of forming or releasing a substantially nondiffusible dye upon oxidative coupling with said aromatic primary amine color developing agent and said development processing is carried out at a pH of 11.5 or less using a developing solution containing substantially no benzyl alcohol in the presence of at least one compound selected from the group consisting of the compounds represented by the general formula (I)

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