Relief printing plate manufacture

Details Relief printing plate manufacture Relief printing plate manufacture

1988-06-07

1990-05-22

Dees, Jose

Radiation imagery chemistry: process, composition, or product th

Imaged product

Multilayer

430300, 430306, 430309, 430325, 430328, 430394, 430494, G03F 702, G03L 300

Patent

active

049277235

ABSTRACT:
A relief flexographic printing plate is prepared by image-wise exposure of the "printing face" of a layer of photocurable polymer through a negative 7 and image-wise back exposure of the layer 4 through a support sheet 3 and a positive 6 of the image to be printed, thereby selectively curing the floor regions 9 of the printing plate in register with the uncured areas 8 left in the printing face of said layer.
Preferably a further non-selective back exposure operation is carried out for additionally curing the floor regions.

REFERENCES:
patent: 3408191 (1968-10-01), Jeffers
patent: 3663222 (1972-05-01), Akamatsu et al.
patent: 3703864 (1972-11-01), Bradford
patent: 3951657 (1976-04-01), Recchia et al.
patent: 3962002 (1976-06-01), Finkbeiner et al.
patent: 4087182 (1978-05-01), Aiba et al.
patent: 4101324 (1978-07-01), Mizino et al.
patent: 4557995 (1985-12-01), Broers et al.
patent: 4600667 (1986-07-01), Uchida
patent: 4668607 (1987-05-01), Wojcik
patent: 4720448 (1988-01-01), Mousseau

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