DE591927C - Process for the production of rubber printing forms for letterpress and gravure printing - Google Patents

Process for the production of rubber printing forms for letterpress and gravure printing

Info

Publication number
DE591927C
DE591927C DEH130439D DEH0130439D DE591927C DE 591927 C DE591927 C DE 591927C DE H130439 D DEH130439 D DE H130439D DE H0130439 D DEH0130439 D DE H0130439D DE 591927 C DE591927 C DE 591927C
Authority
DE
Germany
Prior art keywords
rubber
printing
letterpress
production
forms
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
DEH130439D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEH130439D priority Critical patent/DE591927C/en
Application granted granted Critical
Publication of DE591927C publication Critical patent/DE591927C/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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/12—Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C3/00—Reproduction or duplicating of printing formes
    • B41C3/04—Reproduction or duplicating of printing formes to produce rubber printing blocks

Description

Bisher erfolgte das Übertragen von Farben bei Hoch- und Tiefdruck mittels metallener Bild- oder Schriftformen (Klischees) oder solcher aus festen Kautschukplatten.
Es ist unmöglich, mittels metallener Druckformen rauhe Papiere, Pappen, Blech, gewebte Stoffe o. dgl. einwandfrei zu bedrucken, weil die harten metallenen Klischees nicht in die Unebenheiten der rauhen Papiere oder der gewebten Stoffe eindringen und infolgedessen darauf keine gleichmäßige Farbschicht übertragen können.Up to now, the transfer of colors in letterpress and gravure printing was done by means of metallic image or writing forms (clichés) or those made of solid rubber sheets.
It is impossible to use metal printing forms to print on rough paper, cardboard, sheet metal, woven fabrics or the like perfectly, because the hard metal clichés do not penetrate into the unevenness of the rough paper or woven fabrics and consequently cannot transfer an even layer of color to it.

Um diesen Übelständen nun einigermaßen zu begegnen, wurden Klischees benutzt, die aus Kautschuk in fester Form hergestellt waren.In order to counter these evils to some extent, clichés were used, the were made of rubber in solid form.

Die verwendeten Kautschukplatten oder -massen nehmen aber infolge ihrer hohen Elastizität die erforderliche Schärfe der Schrift oder der Rasterpunkte beim Prägen und Vulkanisieren nicht an und infolgedessen können die so erhaltenen Kautschukdruckformen keine einwandfreie Übertragung auf das Arbeitsstück liefern.The rubber sheets or masses used, however, take due to their high Elasticity the required sharpness of the writing or the halftone dots when embossing and vulcanizing, and as a result, the rubber printing molds thus obtained can do not deliver a perfect transfer to the workpiece.

Diese Nachteile werden gemäß der Erfindung dadurch beseitigt, daß zur Herstellung der Druckformen unmittelbar flüssige Kautschukmilch verwendet wird.These disadvantages are eliminated according to the invention in that for production liquid rubber milk is used directly in the printing formes.

Da die Beschaffung von natürlicher Kautschukmilch in manchen Ländern schwierig ist, ist es zweckmäßig, an Stelle der natürlichen, synthetische Kautschukmilch unmittelbar zu benutzen.Because the procurement of natural rubber milk is difficult in some countries it is advisable to replace the natural, synthetic rubber milk directly to use.

Die Anfertigung von Druckstöcken unter unmittelbarer Verwendung von flüssiger Kautschukmilch kann wie folgt vor sich gehen:The production of printing blocks with the direct use of liquid Rubber milk can do the following:

Von der Bild- oder Schriftform wird in an sich bekannter Weise eine Mater hergestellt. In diese Mater wird dann unmittelbar, die flüssige Kautschukmilch gebracht. Darauf wird dieselbe durch Hitze oder auf andere · Weise vulkanisiert oder erhärtet. Die Kautschukmilch kann mit beliebigem Füllmaterial vermischt werden, und das Hineinbringen der Kautschukmilch in die Mater kann durch Gießen, Spritzen, Streichen, unter Anwendung von mehr oder weniger Druck, erfolgen.A material is produced from the image or written form in a manner known per se. The liquid rubber milk is then brought directly into this material. Thereon it is vulcanized or hardened by heat or in some other way. The rubber milk can be mixed with any filler material, and the introduction of the Rubber milk into the mater can by pouring, splashing, brushing, using of more or less pressure.

Es ist bis jetzt bereits bekannt, daß Kautschukmilch in negative Formen gebracht wird, um z. B. Spielzeugformen aller Art aus Gummi, Bälle, Autoreifen u. dgl. herzustellen und abzuformen. Jedoch hat dieses Verfahren noch keine Anwendung auf dem Gebiete der Drucktechnik, nämlich zur Herstellung von Kautschukdruckformen für Hoch- und Tiefdruck, gefunden, wie es einzig und allein Gegenstand der Erfindung ist, nach welcher flüssige Kautschukmilch in die Matern gebracht wird.It is already known up to now that rubber milk is brought into negative forms is used to z. B. To produce toy shapes of all kinds made of rubber, balls, car tires and the like and take a mold. However, this method has not yet had any application in the field of printing technology, namely for the production of rubber printing forms for letterpress and gravure printing, found how it is unique and The only object of the invention is, according to which liquid rubber milk in the matern is brought.

Die Kautschukdruckformen (Klischees) können flach oder gebogen sein. Sie werden zweckmäßigerweise auf nicht dehnbare Unterlagen oder Verstärkungen von Metall o. dgl. aufgebracht, damit sie sich nicht verziehen können.The rubber printing forms (clichés) can be flat or curved. you will be expediently applied to non-stretchable substrates or reinforcements made of metal or the like so that they do not warp can.

Ein weiterer Vorteil der Erfindung ist noch der, daß die im Buchdruckgewerbe zur Ver-Another advantage of the invention is that the

wendung kommenden Flach- und Rundstereotypievorrichtungen, Schrift- und Bildgießmaschinen, Zeilenguß- und Setzmaschinen usw., gegebenenfalls mit entsprechenden Umänderungen, benutzt werden können.application of the coming flat and round stereotype devices, Type and image casting machines, line casting and typesetting machines, etc., if necessary with corresponding changes, can be used.

Claims (2)

Patentansprüche:Patent claims: i. Verfahren zum. Herstellen von Kautschukdruckformen für Hoch- und Tiefdruck, dadurch gekennzeichnet, daß in die Matern anstatt Kautschukplatten natürliche oder synthetische flüssige Kautschukmilch gebracht wird.i. Procedure for. Manufacture of rubber printing forms for letterpress and gravure printing, characterized in that natural rubber sheets are used in the maters instead of rubber sheets or synthetic liquid rubber milk is brought. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß zum Hineinbringen der Kautschukmilch in die Matern die bekannten Stereotypievorrichtungen, Gießmaschinen usw. mit verwendet werden.2. The method according to claim i, characterized in that for bringing in the rubber milk in the matern the well-known stereotype devices, casting machines etc. can also be used.
DEH130439D 1932-02-01 1932-02-02 Process for the production of rubber printing forms for letterpress and gravure printing Expired DE591927C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH130439D DE591927C (en) 1932-02-01 1932-02-02 Process for the production of rubber printing forms for letterpress and gravure printing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE395214X 1932-02-01
DEH130439D DE591927C (en) 1932-02-01 1932-02-02 Process for the production of rubber printing forms for letterpress and gravure printing

Publications (1)

Publication Number Publication Date
DE591927C true DE591927C (en) 1934-01-29

Family

ID=25888701

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH130439D Expired DE591927C (en) 1932-02-01 1932-02-02 Process for the production of rubber printing forms for letterpress and gravure printing

Country Status (1)

Country Link
DE (1) DE591927C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899902C (en) * 1951-04-05 1953-12-17 Charlotte Pittschau Geb Lenhar Process for the production of gravure forms without etching

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899902C (en) * 1951-04-05 1953-12-17 Charlotte Pittschau Geb Lenhar Process for the production of gravure forms without etching

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