DE165970C - - Google Patents

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Publication number
DE165970C
DE165970C DENDAT165970D DE165970DA DE165970C DE 165970 C DE165970 C DE 165970C DE NDAT165970 D DENDAT165970 D DE NDAT165970D DE 165970D A DE165970D A DE 165970DA DE 165970 C DE165970 C DE 165970C
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DE
Germany
Prior art keywords
relief
gelatin
way
metal
images
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.)
Active
Application number
DENDAT165970D
Other languages
German (de)
Publication of DE165970C publication Critical patent/DE165970C/de
Active legal-status Critical Current

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/26Processing photosensitive materials; Apparatus therefor
    • G03F7/40Treatment after imagewise removal, e.g. baking

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Plates And Materials Therefor (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die Druckformen zur Herstellung von Gelatinebildern (Woodburydrucken) wurden bisher meist in der Art angefertigt, daß durch Auswaschen ein Gelatinerelief hergestellt wurde, von welchem durch Einpressen in Bleiplatten oder in Stanniol eine Gegenform gewonnen wurde, die als Tiefdruckform für den Druck mit gefärbter Gelatine diente. Um die mit Schwierigkeit verbundene Abformung zu umgehen,' hat man auch versucht, Formen in der Art zu gewinnen, daß man die lichtempfindliche Gelatineschicht statt unter einem Negativ unter einem Diapositiv belichtete und dann durch Auswaschen einThe printing forms for the production of Gelatine images (Woodburydrucken) were mostly made in the way that by Wash out a gelatin relief was produced, of which by pressing into Lead plates or in tinfoil a counter-form was obtained, which is used as a gravure form for the print with colored gelatin was used. About the difficult impression taking to get around, 'one has also tried to gain forms in such a way that one the photosensitive gelatin layer under a slide instead of a negative exposed and then washed out

1S Negativrelief anfertigte, dieses Negativrelief sodann mit einem klebrigen Firnis überzog und dann ein Stanniolblatt aufpreßte. Schärfere und widerstandsfähigere Druckformen erhält man nach dem folgenden Verfahren. 1 S made a negative relief, then covered this negative relief with a sticky varnish and then pressed on a tinfoil sheet. Sharper and more resistant printing forms can be obtained using the following procedure.

Es ist bekannt, daß man Gelatinereliefs für die Zwecke der galvanischen Abformung durch Niederschlagen von Metall mit einer festhaftenden Metallschicht elektrolytisch überziehen kann. Die vorliegende Erfindung geht hiervon aus und besteht in der Anwendung so behandelter Gelatinereliefs als Druckformen für Gelatinebilder (Woodburydrucke). Danach verfährt man, um sowohl Gelatinequell- als auch Auswaschreliefs mit einem Metallüberzug zu versehen, welcher fest an dem Relief haftet, in der Weise, daß man das Relief in einer Metallsalzlösung badet, aus der man dann durch Reduktion das betreffende Metall auf dem Relief niederschlägt. Das auf diese Weise leitend gemachte Relief wird sodann in ein galvanisches Bad gebracht, um auf der erhaltenen Metallschicht einen elektrolytischen Niederschlag des bereits vorhandenen oder eines anderen Metalles zu erhalten. Zweckmäßig verwendet man eine Silberlösung, in der man das Relief badet, worauf man in bekannter Weise das Silber reduziert und dann in das galvanische Bad einbringt, um in demselben möglichst rasch einen dünnen Metallüberzug zu erhalten.It is known that gelatin reliefs are used for the purpose of galvanic molding Electrolytically coat by depositing metal with a firmly adhering metal layer can. The present invention is based on this and consists in the use of gelatin reliefs treated in this way as printing forms for gelatin images (Woodburydrucks). Then you proceed to create both gelatin swell and wash-out reliefs with a To provide metal coating, which adheres firmly to the relief, in such a way that one the relief is bathed in a metal salt solution, from which one can then reduce the relevant Metal precipitates on the relief. The relief made conductive in this way is then placed in an electroplating bath in order to apply the metal layer obtained an electrolytic precipitate of the existing or another metal obtain. It is advisable to use a silver solution in which to bathe the relief, whereupon the silver is reduced in a known manner and then in the galvanic bath introduces in order to obtain a thin metal coating in the same as quickly as possible.

Dadurch, daß sich der elektrolytische Niederschlag nicht allem auf-, sondern auch in dem Gelatinerelief niederschlägt, ist ein späteres Loslösen des Metallüberzuges ausgeschlossen und das Relief dauernd gegen Einwirkung der flüssigen Gelatinefarbe geschützt. Der außerordentlich dünne, gleichmäßig gelagerte Metallüberzug mindert die Schärfe in kaum nennenswerter Weise.Because the electrolytic precipitate is not on everything, but also If the gelatin relief is reflected, a later detachment of the metal coating is impossible and the relief is permanently protected against the action of the liquid gelatin paint. The extraordinarily thin, evenly stored metal coating reduces the sharpness in a hardly noteworthy way.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung von Gelatinebildern (Woodburydrucken), dadurch gekennzeichnet, daß als Druckform ein photographisches Relief dient, das durch einen elektrolytischen Metallniederschlag verstärkt ist.Process for the production of gelatine images (Woodburydrucken), characterized in, that a photographic relief is used as the printing form, which is formed by an electrolytic metal deposit is reinforced.
DENDAT165970D Active DE165970C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE165970T

Publications (1)

Publication Number Publication Date
DE165970C true DE165970C (en)

Family

ID=5685607

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DE (1) DE165970C (en)

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