DE445081C - Gelatin grease printing process - Google Patents

Gelatin grease printing process

Info

Publication number
DE445081C
DE445081C DES72679D DES0072679D DE445081C DE 445081 C DE445081 C DE 445081C DE S72679 D DES72679 D DE S72679D DE S0072679 D DES0072679 D DE S0072679D DE 445081 C DE445081 C DE 445081C
Authority
DE
Germany
Prior art keywords
gelatin
printing process
grease
grease printing
humidity
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
DES72679D
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.)
IGRAF INTERNATIONALE GRAPHIK F
Original Assignee
IGRAF INTERNATIONALE GRAPHIK F
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 IGRAF INTERNATIONALE GRAPHIK F filed Critical IGRAF INTERNATIONALE GRAPHIK F
Priority to DES72679D priority Critical patent/DE445081C/en
Application granted granted Critical
Publication of DE445081C publication Critical patent/DE445081C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03F7/14—Production of collotype printing forms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)

Description

Gelatinefettdruckverfahren. Bekanntlich bilden sich beim Gelatinefettdruckverfahren unter dem Einfluß der Feuchte mehr oder minder erhabene Reliefs, welche insofern unangebracht sind, als sie sowohl beim Einwalzen wie auch beim eigentlichen Druck stören. Es sind zwar schon verschiedene Versuche zur Behebung dieses Übelstandes gemacht, keiner aber hat den beabsichtigten Erfolg gezeitigt.Gelatin grease printing process. As is known, form in the gelatin grease printing process more or less raised reliefs under the influence of moisture, which in this respect are inappropriate than they are both during rolling and during actual printing disturb. There have been various attempts to remedy this problem done, but no one has achieved the intended success.

Die Erfindung geht einen neuen Weg, indem sie die Gelatine von vornherein derart beeinflußt, daß ihr Quellungsvermögen herabgesetzt wird.The invention takes a new approach by making the gelatin from the start influenced in such a way that their swelling capacity is reduced.

Das Verfahren besteht darin, daß man der Gelatine auf dem Wege der Feuchte Stoffe zusetzt, welche ihr Quellungsvermögen vermindern oder- verzögern (vgl. Z s i g -m o n d y, 3. Aufl. 192o, S. 374 unten und 375 oben), z. B. Lösungen des Natriumsulfats. Als ein praktisches Mengenverhältnis, das sich bewährt hat, sei eine einzehntelnormale Lösung der Feuchte angegeben.The process consists in that the gelatin on the way of Adds damp substances which reduce or delay their swelling capacity (cf. Z s i g -m o n d y, 3rd ed. 192o, p. 374 below and 375 above), z. B. Solutions of sodium sulfate. As a practical proportion that has proven itself, a one-tenth normal solution of the moisture is given.

Es ist selbstverständlich, daß sich durch diesen Eingriff auch das später entstehende Relief, das nie ganz vermieden- werden kann, ganz erheblich vermindert. Allerdings nehmen bei den so entstandenen Reliefs auch die hohen Lichter Fettfarbe an; dem begegnet man aber der Erfindung gemäß durch Temperaturerhöhung der Feuchte. Normalerweise wird mit einer Feuchte von 22° gearbeitet. Nach der Erfindung kommen Temperaturen von etwa 25o° und darüber in Betracht. Ein weiterer Vorteil des neuen Verfahrens besteht darin, daß bei dem bekannten Zusammenhange des Reliefs mit der Gradation die letztere in jedem gewünschten Ausmaße eingestellt werden kann.It goes without saying that this intervention will also later relief, which can never be completely avoided, is considerably reduced. However, in the reliefs created in this way, the high lights also take on a fat color at; However, according to the invention, this is countered by increasing the temperature of the humidity. Normally, a humidity of 22 ° is used. After the invention come Temperatures of around 25o ° and above are considered. Another benefit of the new The method is that in the known relationship of the relief with the Gradation the latter can be adjusted to any desired extent.

Claims (2)

PATENTANSPRÜCHE: 1. Gelatinefettdruckverfahren, dadurch gekennzeichnet, daß die zur Verwendung gelangende Gelatine mit Zusätzen quellungsvermindernder oder -verzögernder Stoffe beim Feuchten versehen wird. PATENT CLAIMS: 1. Gelatin grease printing process, characterized in that that the gelatin used with additives to reduce swelling or - retarding substances when damp is provided. 2. Ausführungsform des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß die Temperatur der Feuchte über etwa 22° erhöht wird, um zu verhindern, daß auch die -hohen Lichter Fettfarbe annehmen.2nd embodiment of the method according to claim 1, characterized in that the temperature of the humidity is about 22 ° in order to prevent the high lights from taking on a fat color.
DES72679D 1925-12-19 1925-12-19 Gelatin grease printing process Expired DE445081C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES72679D DE445081C (en) 1925-12-19 1925-12-19 Gelatin grease printing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES72679D DE445081C (en) 1925-12-19 1925-12-19 Gelatin grease printing process

Publications (1)

Publication Number Publication Date
DE445081C true DE445081C (en) 1927-06-01

Family

ID=25996348

Family Applications (1)

Application Number Title Priority Date Filing Date
DES72679D Expired DE445081C (en) 1925-12-19 1925-12-19 Gelatin grease printing process

Country Status (1)

Country Link
DE (1) DE445081C (en)

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