Shallow relief photopolymer printing plate and methods

Details Shallow relief photopolymer printing plate and methods Shallow relief photopolymer printing plate and methods

1977-01-24

1978-09-19

Welsh, John D.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 86P, 96 351, 101467, G03C 168

Patent

active

041151232

ABSTRACT:
A shallow relief printing plate is disclosed having a polymerized layer of less than about 0.020 inch and which includes an array of small protuberances in non-image or background areas to prevent bottoming. Photopolymerizable elements, as well as processing techniques, are also disclosed for making such printing plates.

REFERENCES:
patent: 3157505 (1964-11-01), Notley
patent: 3455239 (1969-07-01), Smith
patent: 3523503 (1970-08-01), O'Boyle et al.
patent: 3647446 (1972-03-01), Alsup
patent: 3677750 (1972-08-01), Mammino
patent: 3728114 (1973-04-01), Futaki et al.

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