US956764A - Process of producing lithographic-printing plates. - Google Patents

Process of producing lithographic-printing plates. Download PDF

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Publication number
US956764A
US956764A US49385509A US1909493855A US956764A US 956764 A US956764 A US 956764A US 49385509 A US49385509 A US 49385509A US 1909493855 A US1909493855 A US 1909493855A US 956764 A US956764 A US 956764A
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United States
Prior art keywords
nickel
printing plates
printing
plate
lithographic
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Expired - Lifetime
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US49385509A
Inventor
William Gerb
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Individual
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Priority to US49385509A priority Critical patent/US956764A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C3/00—Reproduction or duplicating of printing formes
    • B41C3/08—Electrotyping; Application of backing layers thereon

Definitions

  • My invention relates to a process of producing a metallic printing plate suitable for use as a substitute for ithographic stone, such plate having a printing surface of nickel, which if chemically pure as obtained by electro-deposition is found to be an excellent printing material.
  • the cathode In carrying out my invention I use as the cathode a perfectly flat or plane plate of any ilitable material, the surface of the cathode mg the nic el film or plate deposited thereon the necessary character to adapt such nickel film or plate for use as a printing surface. I then electro deposit on such cathode plate a comparatively thin layer of nickel,
  • the face of the cathode is prepared in any suitable way to render ossible the easy detachment of the nickel t erefrom.
  • a plate produced in this way has a nickel surface of excellent quality and immediately available without further preparation for lithographic printing.
  • I claim 1 The process of producing lithographicprintin plates, which consists in electrodepositmg a layer of nickel on a cathode plate whose surface is grained in such a manner as to impart to the surface of the nickel layer a character adapted for lithographic printin electro-depositing on such nickel layer a backing layer of metal, and separating the combined plate from the cathode.
  • the process of producing lithographicprintin plates whlch consists in electrodepositing a layer of nickel on a cathode plate whose surface is grained in such a manner as to impart to the surface of the nickel layer a character adapted for lithographic printing, electro-depositing on such nickel layer a backing layer of zinc, and separating the combined plate from the cathode.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Plates And Materials Therefor (AREA)

Description

'metal, cardboard or pa er.
WILLIAM GERB, 0F BERLIN, GERMANY.
PROCESS OF PRODUCING LITHOGRAPHIC-PRINTING PLATES.
No Drawing.
Specification of Letters Patent.
Application filed May 4, 1909. Serial No. 493,855.
Patented May 3, 1910.
To all whom it may concern:
Be it known that I, WILLIAM GERB, director, citizen of Germany, subject of the King of Prussia and Emperor of Germany, residing at Berlin, 2 Gerichtstrasse, in the Kingdom of Prussia and Empire of Germany, have invented certain new and useful Improvements in Processes of Producing Lithographic-Printing Plates, of which the following is a full, clear, and exact description.
Many substitutes forthe lithographic stone used for fiat printing have been proposed, such as plates of zinc or aluminium, either alone or backed up by a suitable support of These various substitutes are either hlgh-priced or have other defects which have prevented their general use.
My invention relates to a process of producing a metallic printing plate suitable for use as a substitute for ithographic stone, such plate having a printing surface of nickel, which if chemically pure as obtained by electro-deposition is found to be an excellent printing material.
In carrying out my invention I use as the cathode a perfectly flat or plane plate of any ilitable material, the surface of the cathode mg the nic el film or plate deposited thereon the necessary character to adapt such nickel film or plate for use as a printing surface. I then electro deposit on such cathode plate a comparatively thin layer of nickel,
ained so as to give to the surface of and further electro-deposit on such nickel layer a backing of zinc, which may be of any desired thickness.
Y The face of the cathode is prepared in any suitable way to render ossible the easy detachment of the nickel t erefrom.
A plate produced in this way has a nickel surface of excellent quality and immediately available without further preparation for lithographic printing.
I claim 1. The process of producing lithographicprintin plates, which consists in electrodepositmg a layer of nickel on a cathode plate whose surface is grained in such a manner as to impart to the surface of the nickel layer a character adapted for lithographic printin electro-depositing on such nickel layer a backing layer of metal, and separating the combined plate from the cathode.
2. The process of producing lithographicprintin plates, whlch consists in electrodepositing a layer of nickel on a cathode plate whose surface is grained in such a manner as to impart to the surface of the nickel layer a character adapted for lithographic printing, electro-depositing on such nickel layer a backing layer of zinc, and separating the combined plate from the cathode.
In witness whereof, I subscribe my signature, in presence of two witnesses.
- WILLIAM GERB.
Witnesses:
HENRY HAsPnR, WOLDEMAR HAUPT.
US49385509A 1909-05-04 1909-05-04 Process of producing lithographic-printing plates. Expired - Lifetime US956764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US49385509A US956764A (en) 1909-05-04 1909-05-04 Process of producing lithographic-printing plates.

Applications Claiming Priority (1)

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US49385509A US956764A (en) 1909-05-04 1909-05-04 Process of producing lithographic-printing plates.

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US956764A true US956764A (en) 1910-05-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679473A (en) * 1952-05-23 1954-05-25 Cons Molded Products Corp Method of preparing molds to produce crackle and other surface finishes on molded plastic articles
US4119035A (en) * 1976-10-28 1978-10-10 Roland Offsetmaschinenfabrik Faber & Schleicher Ag. Printing plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679473A (en) * 1952-05-23 1954-05-25 Cons Molded Products Corp Method of preparing molds to produce crackle and other surface finishes on molded plastic articles
US4119035A (en) * 1976-10-28 1978-10-10 Roland Offsetmaschinenfabrik Faber & Schleicher Ag. Printing plate

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