Water developable, negative working overlay or transfer type dia

Details Water developable, negative working overlay or transfer type dia Water developable, negative working overlay or transfer type dia

1988-04-20

1990-04-03

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Process producing multiple image

430160, 430162, 430175, 430176, 430257, 430258, 430293, G03C 700, G03C 534, G03F 300, G03F 708

Patent

active

049140396

ABSTRACT:
This invention relates to water developable, negative working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. The invention provides both overlay and transfer type proofing sheets which have good fingerprint resistance.

REFERENCES:
patent: 3849392 (1974-11-01), Steppan
patent: 4144067 (1979-03-01), Ruckert et al.
patent: 4288520 (1981-09-01), Sprintschnik et al.
patent: 4436804 (1984-03-01), Walls
patent: 4650738 (1987-03-01), Platzer et al.

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