Method and apparatus for obtaining lithographic plate

Details Method and apparatus for obtaining lithographic plate Method and apparatus for obtaining lithographic plate

1996-08-14

2000-08-01

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430244, 430494, 430945, G03F 707, G03C 800

Patent

active

060964731

ABSTRACT:
A method for making a lithographic printing plate according to the silver salt diffusion transfer process image-wise exposes an imaging element with a high intensity short time scanning exposure. The imaging element comprises on a support in the order given a silver halide emulsion layer and a layer containing physical development nuclei. A thus obtained image-wise exposed imaging element is subsequently developed in the presence of a developing agent and silver halide solvent. The image-wise exposure is focused substantially within the silver halide emulsion layer of the imaging element. The present invention further provides an apparatus for carrying out the above method.

REFERENCES:
patent: 4501811 (1985-02-01), Saikawa et al.
patent: 4621041 (1986-11-01), Saikawa et al.
patent: 4873170 (1989-10-01), Nishinoiri et al.
patent: 5616445 (1997-04-01), Kelley et al.

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