Laser-imagable recording material and printing plate produced th

Details Laser-imagable recording material and printing plate produced th Laser-imagable recording material and printing plate produced th

1998-01-16

1999-07-20

Funk, Stephen R.

Printing

Planographic

Lithographic printing plates

101459, 101467, B41N 108, B41C 110

Patent

active

059243643

ABSTRACT:
The invention relates to a recording material having a plate- or sheet-like substrate, at least one IR-absorbing layer, which comprises at least one IR-absorbing component and at least one polymeric, organic binder and decomposes under the action of IR laser radiation or changes so that its adhesion to the silicone top layer decreases, and a top layer comprising a cured silicone rubber. The substrate comprises an oxidizable metal or one of its alloys and, at least on the side facing the IR-absorbing layer, is roughened and is covered with a layer of an oxide of the metal. The invention also relates to a process for the production of a waterless offset printing plate and to the printing plate itself which is produced from the recording material according to the invention and in which the hydrophilic surface of the oxide layer is ink-carrying and the oleophobic top layer is ink-repellent.

REFERENCES:
patent: 3559576 (1971-02-01), Vrancken et al.
patent: 4063949 (1977-12-01), Uhlig et al.
patent: 5339737 (1994-08-01), Lewis et al.
patent: 5370906 (1994-12-01), Dankert
patent: 5493971 (1996-02-01), Lewis et al.
patent: 5634403 (1997-06-01), Williams et al.
patent: 5783364 (1998-07-01), Ellis et al.
patent: 5786129 (1998-07-01), Ellis
"Patent Abstract of Japan" 03059558 vol. 15 No. 214 p. 1209 Mar. 14, 1991.

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