DE488993C - Process for preparing zinc plates for photomechanical chromate copying processes - Google Patents

Process for preparing zinc plates for photomechanical chromate copying processes

Info

Publication number
DE488993C
DE488993C DEU9212D DEU0009212D DE488993C DE 488993 C DE488993 C DE 488993C DE U9212 D DEU9212 D DE U9212D DE U0009212 D DEU0009212 D DE U0009212D DE 488993 C DE488993 C DE 488993C
Authority
DE
Germany
Prior art keywords
chromate
photomechanical
zinc plates
zinc
preparing zinc
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
DEU9212D
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.)
F ULLMANN GmbH
Original Assignee
F ULLMANN GmbH
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
Priority to NL21256D priority Critical patent/NL21256C/xx
Application filed by F ULLMANN GmbH filed Critical F ULLMANN GmbH
Priority to DEU9212D priority patent/DE488993C/en
Priority to US173615A priority patent/US1785606A/en
Priority to GB8133/27A priority patent/GB288023A/en
Priority to FR631930D priority patent/FR631930A/en
Application granted granted Critical
Publication of DE488993C publication Critical patent/DE488993C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/04—Chromates

Description

Verfahren zur Vorbereitung von Zinkplatten für photomechanische Chromatkopierverfahren Es ist bekannt, daß Zink als Schichtträger für Chromatpräparate bei Herstellung photomechanisch gewonnener Druckformen auf die aufgebrachten Präparate ungünstig reagiert. Dieser Umstand war schon vor Jahrzehnten bei Versuchen, den Lichtdruck auf Zinkplatten auszuführen, sehr hinderlich. Man hat daher versucht, den Einfluß des metallischen Zinkes auf Chromatpräparate durch entsprechende Vorbehandlung der Zinkplatten abzuschwächen.Process for preparing zinc plates for photomechanical chromate copying processes It is known that zinc is used as a substrate for chromate preparations in manufacture photomechanically obtained printing forms on the applied preparations unfavorable reacted. This fact was already decades ago when attempts were made to use collotype to run on zinc plates, very cumbersome. One has therefore tried to influence the of metallic zinc on chromate preparations by appropriate pretreatment of the To weaken zinc plates.

Man hat beispielsweise durch Behandeln der Zinkplatten mit verdünnter Chromsäure, durch Übergießen von Kolloidscliichten, durch Baden der Zinkplatten in Alaun und verdünnter Salpetersäure den ungünstigen Einfiuß, des Zinkes zu verringern gesucht, aber ihn nicht restlos aufheben können, so daß. es wünschenswert erschien, das Verhalten des Zinkes gegenüber Chromatpräparaten genauer zu untersuchen, um eine neue Methode zu finden, um das Zink als Schichtträger durch geeignete Behandlung gegenüber diesen Schichten möglichst indifferent zu machen. Die vorliegende Erfindung ist das Ergebnis derartiger Untersuchungen.One has, for example, by treating the zinc plates with thinned Chromic acid, by pouring colloidal layers over them, by bathing the zinc plates in alum and dilute nitric acid the unfavorable influence of zinc is reduced wanted, but not able to pick it up completely, so that. it seemed desirable to investigate more closely the behavior of zinc towards chromate preparations in order to a new method to find the zinc as a layer support by suitable treatment to make them as indifferent as possible to these layers. The present invention is the result of such investigations.

Es wurde gefunden, daß Lösungen von Aluminiumchlorid zur Vorbehandlung der Zinkplatten sich als sehr geeignet erweisen.It has been found that solutions of aluminum chloride can be used for pretreatment the zinc plates prove to be very suitable.

Ein Ausführungsbeispiel des neuen Verfahrens sei nachstehend gegeben.An embodiment of the new method is given below.

Die gesäuberte und fettfrei gemachte Zinkplatte wird etwa 2 bis q. Minuten in ein Bad gelegt, das aus einer Lösung von beispielsweise 40 0,ä Aluminiurndhlorid besteht. Nach dem Baden wird die Zinkplatte gut gespült und getrocknet. Nach dieser Behandlung ist die Platte gebrauchsfertig für den Aufguß der Chromatschicht.The cleaned and grease-free zinc plate is about 2 to q. Minutes placed in a bath that consists of a solution of, for example, 40 0, - aluminum chloride consists. After bathing, the zinc plate is rinsed well and dried. After this Treatment, the plate is ready to use for the infusion of the chromate layer.

Claims (1)

PATENTANSPRUCH: Verfahren zur Vorbereitung von Zinkplatten für photomechanische Chromatkopierverfahren, dadurch gekennzeichnet, daß als auf Zinkplatten einwirkendes Mittel Aluminiumchlorid verwendet wird.PATENT CLAIM: Process for preparing zinc plates for photomechanical Chromate copying process, characterized in that as acting on zinc plates Medium aluminum chloride is used.
DEU9212D 1926-03-11 1926-03-11 Process for preparing zinc plates for photomechanical chromate copying processes Expired DE488993C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL21256D NL21256C (en) 1926-03-11
DEU9212D DE488993C (en) 1926-03-11 1926-03-11 Process for preparing zinc plates for photomechanical chromate copying processes
US173615A US1785606A (en) 1926-03-11 1927-03-07 Preliminary treatment of metal plates for the production of printing plates
GB8133/27A GB288023A (en) 1926-03-11 1927-03-24 Improvements in and relating to the production of photozincograph printing surfaces
FR631930D FR631930A (en) 1926-03-11 1927-04-01 Preliminary treatment of metal plates for the preparation of printing forms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU9212D DE488993C (en) 1926-03-11 1926-03-11 Process for preparing zinc plates for photomechanical chromate copying processes

Publications (1)

Publication Number Publication Date
DE488993C true DE488993C (en) 1930-01-11

Family

ID=26000944

Family Applications (1)

Application Number Title Priority Date Filing Date
DEU9212D Expired DE488993C (en) 1926-03-11 1926-03-11 Process for preparing zinc plates for photomechanical chromate copying processes

Country Status (5)

Country Link
US (1) US1785606A (en)
DE (1) DE488993C (en)
FR (1) FR631930A (en)
GB (1) GB288023A (en)
NL (1) NL21256C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH264323A (en) * 1947-08-22 1949-10-15 Trust Cris Process for the production of metal plates for flat printing, in particular offset printing, and plate produced by the process.

Also Published As

Publication number Publication date
NL21256C (en)
GB288023A (en) 1928-04-05
US1785606A (en) 1930-12-16
FR631930A (en) 1927-12-29

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