Method for producing a printing plate

Details Method for producing a printing plate Method for producing a printing plate

1978-02-15

1979-06-26

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Methods

355 32, 355 40, G03B 2732, G03B 2752

Patent

active

041591755

ABSTRACT:
A method of making a printing plate from a negative microphotographic film by means of enlarged photographic projection which comprises the steps of impressing a code for detecting the respective frames of the negative microphotographic film on the blank space of said frames; automatically detecting any desired one of the frames by reference to the code; projecting the image of the detected frame on a transparent film of high dimensional stability at the same rate of enlargement as applied in photographically projecting said image on a printing plate material; preparing a retouching mask film by forming on said transparent film an additional pattern or reverse pattern by reference to the projected image; and applying the retouching mask film thus prepared in addition to the enlarged image of the negative microphotographic film impressed on the printing plate material.

REFERENCES:
patent: 1808743 (1931-06-01), Barkelew
patent: 3160504 (1964-12-01), Montani
patent: 3170368 (1965-02-01), Barnhart
patent: 3288024 (1966-11-01), Cronquist et al.
patent: 3602590 (1969-07-01), Lukens
patent: 3619051 (1969-10-01), Wright
patent: 3857635 (1974-12-01), Niehaus
patent: 4018526 (1977-04-01), Schroter
patent: 4043663 (1977-08-01), Lein
Graphic Arts Monthly, Nov. 1974, pp. 72-76.
Graphic Arts Monthly, Feb. 1975 pp. 38-41.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1557449