Method of producing lithographic printing plate

Details Method of producing lithographic printing plate Method of producing lithographic printing plate

1998-02-12

1999-09-14

Funk, Stephen R.

Printing

Planographic

Lithographic printing plates

1014631, 430 62, G03G 1505

Patent

active

059505419

ABSTRACT:
A lithographic printing plate is produced using a lithographic printing original plate which is composed of a paper support having a volume electric resistance adjusted to 1.times.10.sup.10 .OMEGA..multidot.cm or below by undergoing a conductive treatment, a metallic conductive layer provided on one surface of the support, a photoconductive layer composed of zinc oxide and a binder provided on the metallic conductive layer, and a laminate layer composed of an .alpha.-polyolefin having a volume electric resistance adjusted to 1.times.10.sup.10 .OMEGA..multidot.cm or below by undergoing a conductive treatment provided on the other surface of the support. The lithographic printing original plate is subjected to a negative corona discharge from the side having the photoconductive layer and in this charging, a conductor having an earth potential is contacted with the metal conductive layer from the side of the lithographic printing original plate, where an edge of metal conductive layer is exposed. Thereby, the photoconductive layer of the lithographic printing original plate is charged, forming a lithographic printing plate.

REFERENCES:
patent: 3639121 (1972-02-01), York
patent: 4456670 (1984-06-01), Nakayama et al.
patent: 4555461 (1985-11-01), Shiba et al.
patent: 5008167 (1991-04-01), Yu
patent: 5057389 (1991-10-01), Nakayama et al.
patent: 5382486 (1995-01-01), Yu et al.

Affiliated with

Also associated with

Rating

Method of producing lithographic printing plate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing lithographic printing plate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing lithographic printing plate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1498607