Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3050926A
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Individual
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Individual
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Publication of GB262442ApublicationCriticalpatent/GB262442A/en
B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
B41M9/00—Processes wherein make-ready devices are used
B41M9/02—Relief make-readies
B41M9/04—Relief make-readies photomechanical
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Preparing Plates And Mask In Photomechanical Process
(AREA)
Abstract
262,442. Lippmann, A., (trading as Kohler & Lippmann). Dec. 2, 1925, [Convention date]. Make-ready arrangements.-In the production of half-tone printing-plates made-ready for printing, for use in rotary newspaper or other printing- machines, exactly registering images are produced on the front and back of a plate photographically, that on the front being prepared from a negative taken through a screen in the usual way, and that on the back being prepared from a negative taken without a screen. The plate is then etched and is used to impress a flong for the production of curved stereotype plates.
GB3050926A1925-12-021926-12-02Improvements in or relating to the manufacture of photomechanically made ready curved printing plates
ExpiredGB262442A
(en)