Process for forming positive tonable images using a photosensiti

Details Process for forming positive tonable images using a photosensiti Process for forming positive tonable images using a photosensiti

1986-11-12

1987-10-06

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Post imaging treatment with particles

430270, 430326, 430328, G03C 500

Patent

active

046982930

ABSTRACT:
A process for the production of patterns that consist of powders and that are positive with respect to the original is described, according to which a light-sensitive layer containing at least one 1,4-dihydropyridine compound is exposed imagewise, treated with a strong acid, post-exposed diffusely to produce tacky areas, and is subsequently toned.

REFERENCES:
patent: 3888672 (1975-06-01), Lee
patent: 4243741 (1981-01-01), Abele et al.
patent: 4346162 (1982-08-01), Abele et al.
patent: 4604340 (1986-08-01), Grossa

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