Process for fabricating gravure printing plate blank

Details Process for fabricating gravure printing plate blank Process for fabricating gravure printing plate blank

1981-03-31

1983-09-20

Powell, William A.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

1014631, 1014011, 156645, 156656, 1566591, 1566611, 156905, 204 6, 204 17, 430310, C23F 102, C03C 1500, C03C 2506, B41C 100

Patent

active

044057091

ABSTRACT:
A reusable gravure printing plate or cylinder blank which can be readily processed into a printing plate or cylinder carrying an image to be printed. The blank comprises a non-etchable, wear-resistant layer, as of chromium, overlying at least the surface of a base, and a multiplicity of minute dot-like etchable portions, as of copper, which are of equal size and uniform placement, and which are formed at least in and isolated from each other by the non-etchable layer. The etchable portions are formed flush with the non-etchable layer. For preparation of a gravure printing plate or cylinder from this blank an etching operation is performed on the blank through a prepared etching resist, as with the use of a ferric chloride solution. The etchant forms ink-retaining cells in the etchable portions of the blank.

REFERENCES:
patent: 1665000 (1928-04-01), Trist
patent: 2107294 (1938-02-01), Griswold
patent: 2373087 (1945-04-01), Alger

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