DE422245C - Process for etching metal plates coated with metallic chrome - Google Patents

Process for etching metal plates coated with metallic chrome

Info

Publication number
DE422245C
DE422245C DEV20080D DEV0020080D DE422245C DE 422245 C DE422245 C DE 422245C DE V20080 D DEV20080 D DE V20080D DE V0020080 D DEV0020080 D DE V0020080D DE 422245 C DE422245 C DE 422245C
Authority
DE
Germany
Prior art keywords
etching
metal plates
chrome
plates coated
etching metal
Prior art date
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
DEV20080D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VER ELEKTROCHEMISCHE FABRIKEN
Original Assignee
VER ELEKTROCHEMISCHE FABRIKEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by VER ELEKTROCHEMISCHE FABRIKEN filed Critical VER ELEKTROCHEMISCHE FABRIKEN
Priority to DEV20080D priority Critical patent/DE422245C/en
Application granted granted Critical
Publication of DE422245C publication Critical patent/DE422245C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • ing And Chemical Polishing (AREA)

Description

Verfahren zum Ätzen von mit metallischem Chrom überzogenen hletallplatten. Es ist bekannt, daß die Haltbarkeit der Druck- und der Prägefonnen vergrbßert werden kann, wenn man dIesell#en mit einem überzug aus metallischem Chrom versieht. Dieser Chromüb#erzug, der eine außerordentlIche Härte besitzt, kann entweder auf der fertigen Druck- oder der fertig-en P-rägeforin oder aber auch bereits auf der zur Ätzun## bzw. Gravur durch Schleifen und Polieren vorbereiteten Platte al#gebracht werden.Process for etching metal plates coated with metallic chromium. It is known that the durability of the printing and embossing trays are increased can, if you give the desell # en a coating of metallic chrome. This Chrome cover, which is extremely hard, can either be applied to the finished Print or the finished P-rägeforin or also already on the to Ätzun ## or engraving by grinding and polishing prepared plate.

Das letztere Verfahren hat den Vorteil, daß bei der Ätzung die Punkte schärfer stehenbleiben, wenn man die Vorätzung mit einer den Chrornüberzug lösenden Ätzflüssigkeit, z.B. Salzsäure, die Nachätzung dagegen mit einer solchen Ätzflüssigkeit vornimmt, welche das Chrom nicht angreift. Als solche sind z. B. zu nennen: Salpetersäure, Eisenchlorid usw. Da die Chromschicht nur durch die erste Ätzflüssigkeit angegriffen wird, kann ein weiteres Ätzen mit der zu zweit genannten Ätzflüssigkeit erfolgen, ohne daß die Deckschicht nochmals besonders mit Farbe verstärkt oder eingebrannt wird. Dadurch wird der Atzproze#ß wesentlich vereinfacht und, soweit das Einbrennen erspart bleibt, die durch Wahen erzielte Härte des unter der Chromschicht befindlichen Ätzmetalls erhalten.The latter method has the advantage that when etching the points stop sharper if you remove the pre-etching with a chrome coating Etching liquid, e.g. hydrochloric acid, the post-etching, however, with such an etching liquid which does not attack the chrome. As such are e.g. B. to name: nitric acid, Ferric chloride etc. Since the chromium layer was only attacked by the first etching liquid a further etching can be carried out with the etching liquid mentioned above, without the top layer being reinforced with paint or baked on will. This significantly simplifies the etching process and, as far as the burn-in What is spared is the hardness achieved by Wahen under the chrome layer Received etching metal.

Für Stahlplatten, die zum Schutze gegen die Einwirkung von Chromatkolloidschichten mit Kupfer, Silber, Nickel überzogen wurden, ist das Ätzen in zwei Arbeitsgängen schon vorgeschlagen worden.For steel plates that protect against the effects of chromate colloid layers have been coated with copper, silver, nickel, the etching is in two steps has already been proposed.

Claims (1)

PATENT-ANsppucii: Verfahren zum Ätzen von mit metallischem Chrom überzogenen Metallplatten, dadurch gekennzeichnet, daß die Platten zunächst mit einem das Chrommetall lösenden Ätzmittel angeätzt und dann mit einem das ChrommetaU nicht angreif enden Ätzmittel fertiggeätzt werden.PATENT-ANsppucii: Process for etching metal-plated chrome Metal plates, characterized in that the plates are initially coated with a chrome metal etched solvent etching agent and then end up not attacking the chrome metal Etchant are completely etched.
DEV20080D 1925-03-29 1925-03-29 Process for etching metal plates coated with metallic chrome Expired DE422245C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV20080D DE422245C (en) 1925-03-29 1925-03-29 Process for etching metal plates coated with metallic chrome

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV20080D DE422245C (en) 1925-03-29 1925-03-29 Process for etching metal plates coated with metallic chrome

Publications (1)

Publication Number Publication Date
DE422245C true DE422245C (en) 1925-11-26

Family

ID=7578298

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV20080D Expired DE422245C (en) 1925-03-29 1925-03-29 Process for etching metal plates coated with metallic chrome

Country Status (1)

Country Link
DE (1) DE422245C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899941C (en) * 1950-06-29 1953-12-17 Westfaelische Leichtmetallwerk Etchable metallic printing plates and methods of making them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899941C (en) * 1950-06-29 1953-12-17 Westfaelische Leichtmetallwerk Etchable metallic printing plates and methods of making them

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