Method of making a waterless lithographic printing plate

Details Method of making a waterless lithographic printing plate Method of making a waterless lithographic printing plate

1997-07-23

1998-12-15

Baxter, Janet C.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430944, G03F 726

Patent

active

058494642

ABSTRACT:
The present invention relates to a method of making a waterless lithographic printing plate having an image by which printing can be effected without using dampening water, comprising the steps of (1) providing a waterless lithographic fresh printing plate by layering on a substrate a first layer which converts laser light to heat and a second layer which has an ink-repellent surface, sequentially, (2) exposing the waterless lithographic fresh printing plate laser light by irradiating laser light which can be absorbed by the first layer, and (3) applying a liquid having a surface tension of 25-50 dyn/cm.sup.2 to the second layer, and abrading the surface of the second layer to remove the exposed portion of the second layer selectively so that an image enabling printing without using dampening water can be formed.

REFERENCES:
patent: 4772583 (1988-09-01), Sprecker et al.
patent: 4833124 (1989-05-01), Lum
patent: 4912083 (1990-03-01), Chapman et al.
patent: 4942141 (1990-07-01), DeBoer et al.
patent: 4948776 (1990-08-01), Evans et al.
patent: 4948777 (1990-08-01), Evans et al.
patent: 4948778 (1990-08-01), DeBoer
patent: 4950639 (1990-08-01), DeBoer et al.
patent: 4952552 (1990-08-01), Chapman et al.
patent: 5023229 (1991-06-01), Evans et al.
patent: 5252431 (1993-10-01), Yoshida et al.
patent: 5378580 (1995-01-01), Leenders
patent: 5721087 (1998-02-01), Yokoya et al.
"Research Disclosure 19201", (Apr. 1980).
Hiroshi ITO et al, "Applications of Photoinitiators to the Design of Resists for Semiconductor Manufacturing", Polymers in Electronics, pp. 11-23, 1984.
E. Reichmanis et al, Microelectronic Engineering, 13, (1991) pp. 3-10.
Jean Frechet et al, "New Approach to Imaging Systems Incorporating Chemical Amplification: Synthesis and Preliminary Evaluation of Novel Resists Based on Tertiary Copolycarbonates", Journal of Imaging Science, vol. 30, No. 2, Mar./Apr. 1986.

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