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B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
B41N3/00—Preparing for use and conserving printing surfaces
B41N3/03—Chemical or electrical pretreatment
B41N3/038—Treatment with a chromium compound, a silicon compound, a phophorus compound or a compound of a metal of group IVB; Hydrophilic coatings obtained by hydrolysis of organometallic compounds
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Printing Plates And Materials Therefor
(AREA)
Laminated Bodies
(AREA)
Description
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.
Claims (1)
Patent-Anspruch:Patent claim:Verfahren, um Metallplatten mit einer Lithographie-Steinschicht zu versehen, indem man
ein Gemenge von fett- oder harzsaurem Kalk und schwefelsaurem Kalk herstellt und dasselbe,
mit verdünnter Sodalösung gemischt, in fein vertheiltem Zustande auf der Metallplatte
fixirt.Method of providing metal plates with a lithographic stone layer by using
produces a mixture of fatty or resinous lime and sulphate of lime and the same,
mixed with dilute soda solution, in a finely divided state on the metal plate
fixed.
DENDAT35454D
Process for the production of a lithographic stone layer on metal plates
Expired - LifetimeDE35454C
(en)
Letterpress form, which prints markings or characters in representations of the terrain, which are printed in an offset duplicating machine by means of a readable planographic printing form