Method and apparatus for laser imaging of lithographic printing

Details Method and apparatus for laser imaging of lithographic printing Method and apparatus for laser imaging of lithographic printing

Filed on

1995-01-23

Date issued

1998-10-13

Examiner

Funk, Stephen R.

Patent Class

Printing

SubClass

Planographic

SubSubClass

Lithographic plate making, and processes of making or using...

Other Related Categories

101454, 101457, 101456, B41C 110

Type

Patent

Status

active

Patent number

058196617

Description

ABSTRACT:
Apparatus and methods for rapid, efficient production of durable lithographic printing plates by a thermal-transfer process that does not involve ablation. In response to an imaging pulse, a transfer material reduces in viscosity to a flowable state. The material exhibits a higher melt adhesion for a plate substrate than for the carrier sheet to which it is initially bound, so that in a flowable state it transfers completely to the substrate. Following transfer, the carrier sheet, along with untransferred material, is removed from the substrate.

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