DE537740C - Process for etching printing plates made of aluminum or aluminum alloys - Google Patents

Process for etching printing plates made of aluminum or aluminum alloys

Info

Publication number
DE537740C
DE537740C DET31513D DET0031513D DE537740C DE 537740 C DE537740 C DE 537740C DE T31513 D DET31513 D DE T31513D DE T0031513 D DET0031513 D DE T0031513D DE 537740 C DE537740 C DE 537740C
Authority
DE
Germany
Prior art keywords
aluminum
printing plates
plates made
etching printing
aluminum alloys
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
DET31513D
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.)
FRIEDRICH TUTZSCHKE
Original Assignee
FRIEDRICH TUTZSCHKE
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 FRIEDRICH TUTZSCHKE filed Critical FRIEDRICH TUTZSCHKE
Priority to DET31513D priority Critical patent/DE537740C/en
Priority to DET32669D priority patent/DE539882C/en
Application granted granted Critical
Publication of DE537740C publication Critical patent/DE537740C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/20—Acidic compositions for etching aluminium or alloys thereof

Landscapes

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

Description

Verfahren zum Ätzen von Druckplatten aus Aluminium oder Aluminiumlegierungen Die bisherigen Versuche, für Metall-Flachdruck Platten aus Aluminium oder Aluminiumlegierungen zu verwenden, hatten nur wenig Erfolg, weil es nicht gelang, derartige Platten in praktisch einwandfreier Weise zu ätzen. Diesem Mangel wird durch die vorliegende Erfindung abgeholfen, welche darin besteht, daß zum Ätzen von Flachdruckplatten aus Aluminium oder Aluminiumlegierungen eine Ätze verwendet wird, welche Calciumnitrat und Kaliumbiphosphat (KH@PO4) enthält.Process for etching printing plates made of aluminum or aluminum alloys The previous attempts for metal planographic printing plates made of aluminum or aluminum alloys had little success because it was not possible to use such plates in practically flawless way to etch. This shortcoming is made clear by the present Invention remedied, which consists in that for etching planographic printing plates from aluminum or aluminum alloys an etchant is used, which calcium nitrate and potassium bisphosphate (KH @ PO4).

Die Ätze kann z. B. ioo Gewichtsteile Calciumnitrat und 6o Gewichtsteile Kaliumbiphosphat auf i 5oo Gewichtsteile Wasser enthalten.The etch can, for. B. 100 parts by weight calcium nitrate and 60 parts by weight Contains potassium biphosphate in 500 parts by weight of water.

Die Druckplatten werden vor Anwendung der Ätze zweckmäßig mit Schleifsand, dem Kalialaun zugesetzt ist, behandelt.Before using the etch, the printing plates are expediently coated with sand, is added to the potassium alum, treated.

Bei Anwendung der Erfindung ist ein Ablaugen der Platten und Präparieren derselben mit Säure vor dem Ätzen, welches auf Aluminiumplatten ungünstig einwirkt, nicht nötig. Der Erfindung gemäß behandelte Platten ergeben einen besonders scharfen Druck und gestatten die Herstellung sehr starker Auflagen.Using the invention is a leaching of the plates and preparation the same with acid before etching, which has an unfavorable effect on aluminum plates, not necessary. Plates treated according to the invention produce a particularly sharp one Pressure and allow the production of very large editions.

Claims (1)

PATENTANSPRUCH: Verfahren zum Ätzen von Druckplatten aus Aluminium oder Aluminiumlegierungen, gekennzeichnet durch Verwendung einer Ätze, welche Calciumnitrat und Kaliumbiphosphat enthält. PATENT CLAIM: Process for etching printing plates made of aluminum or aluminum alloys, characterized by the use of an etching agent which contains calcium nitrate and potassium biphosphate.
DET31513D 1926-02-23 1926-02-23 Process for etching printing plates made of aluminum or aluminum alloys Expired DE537740C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DET31513D DE537740C (en) 1926-02-23 1926-02-23 Process for etching printing plates made of aluminum or aluminum alloys
DET32669D DE539882C (en) 1926-02-23 1926-11-25 Process for etching printing plates made of aluminum or aluminum alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET31513D DE537740C (en) 1926-02-23 1926-02-23 Process for etching printing plates made of aluminum or aluminum alloys

Publications (1)

Publication Number Publication Date
DE537740C true DE537740C (en) 1931-11-06

Family

ID=7556376

Family Applications (1)

Application Number Title Priority Date Filing Date
DET31513D Expired DE537740C (en) 1926-02-23 1926-02-23 Process for etching printing plates made of aluminum or aluminum alloys

Country Status (1)

Country Link
DE (1) DE537740C (en)

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