Shallow relief non-bottoming photopolymer printing plate

Details Shallow relief non-bottoming photopolymer printing plate Shallow relief non-bottoming photopolymer printing plate

1979-09-12

1981-09-15

Coughenour, Clyde I.

Printing

Printing members

Plates

1014011, 101459, 430300, 430348, B41N 106, B41C 100

Patent

active

042890713

ABSTRACT:
A shallow relief non-bottoming printing plate is disclosed having a polymerized layer of less than about 0.020 inch and which includes a plurality of dispersed particles sufficient to create 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:
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patent: 3345942 (1967-10-01), Meltz
patent: 3433638 (1969-03-01), Ohi
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patent: 3536008 (1970-10-01), Ritzerfeld
patent: 3645204 (1972-02-01), Gosnell
patent: 3696741 (1972-10-01), Reinke
patent: 3711859 (1973-01-01), Brown et al.
patent: 3942440 (1976-03-01), Ritzerfeld
patent: 4000334 (1976-12-01), Hallman et al.
patent: 4046071 (1977-09-01), Mizuno
patent: 4098188 (1978-07-01), Stroszynski
Uhlig, The Journal of Photographic Science vol. 18, 1970, No. 1, Jun./Feb. 1970, pp. 4-7.

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