Image deletion fluid for printing plate

Details Image deletion fluid for printing plate Image deletion fluid for printing plate

1986-10-22

1988-05-24

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Finishing or perfecting composition or product

430204, 430205, G03C 1104, G03C 500

Patent

active

047465972

ABSTRACT:
An image deletion fluid for printing plates which use a silver image as an ink-receptive area. The deletion fluid comprises iodine and an effective excess of iodide ion, which form a triiodide complex, and a hydrophilic-matrix-forming agent. In a preferred embodiment, the deletion fluid further comprises an organic, preferably polar, solvent. The deletion fluid is applied to the surface of the plate, rubbed briefly and allowed to dry there, with no removal or rinsing away of the deletion fluid or by-products required.

REFERENCES:
patent: 3961928 (1976-06-01), DeLorenzo
patent: 4361635 (1982-11-01), Kinderman et al.
patent: 4443531 (1984-04-01), Yamada et al.

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