Thin-metal lithographic printing members with visible tracking l

Details Thin-metal lithographic printing members with visible tracking l Thin-metal lithographic printing members with visible tracking l

1995-07-27

1997-07-22

Funk, Stephen R.

Printing

Planographic

Lithographic printing plates

101460, B41N 114

Patent

active

056494866

ABSTRACT:
Laser-imageable, ablation-type lithographic printing members have a colorant that provides contrast between plate layers of similar tonalities. In particular, the colorant observably distinguishes the ablation layer from visible underlying layers, but which does not substantially interfere with the action of the imaging pulses.

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Research Disclosure, Apr. 1980, "Method and material for the production of a dry planographic printing plate", p. 131 Leenders et al.
"Direct Method of Producing Waterless Offset Plates by Controlled Laser Beam" Nechiporenko et al., pp. 139-148, USSR Research Institute for Complex Problems in Graphic Arts.

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