DE531775C - Rollers for applying ink to printing forms - Google Patents
Rollers for applying ink to printing formsInfo
- Publication number
- DE531775C DE531775C DET33091D DET0033091D DE531775C DE 531775 C DE531775 C DE 531775C DE T33091 D DET33091 D DE T33091D DE T0033091 D DET0033091 D DE T0033091D DE 531775 C DE531775 C DE 531775C
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- printing forms
- rubber
- applying ink
- leather
- 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
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
- B41N7/00—Shells for rollers of printing machines
- B41N7/06—Shells for rollers of printing machines for inking rollers
-
- 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
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/02—Top layers
-
- 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
- B41N2207/00—Location or type of the layers in shells for rollers of printing machines
- B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds
Landscapes
- Paints Or Removers (AREA)
Description
Walzen zum Aufbringen von Farbe auf Druckformen Die Erfindung bezweckt, für die beim Drucken bisher vorwiegend als Farbwalzen verwendeten Lederwalzen einen verbesserten Ersatz zu treffen. Lederwalzen haben als Farbwalzen den großen Nachteil, daß ihre Struktur eine so unregelmäßige ist, daß die Oberfläche die Farbe, die durch die Walze übertragen werden soll, nur unregelmäßig annimmt und ebenso unregelmäßig wieder abgibt, was leicht erklärlich ist, wenn man bedenkt, daß das Leder ein netzartiger poröser Körper ist, dessen Poren hinsichtlich ihrer Größe und Anordnung ganz verschiedenartig verteilt sind.Rollers for applying ink to printing forms The object of the invention is for the leather rollers that have so far been mainly used as inking rollers in printing to meet improved replacement. As inking rollers, leather rollers have the major disadvantage that their structure is so irregular that the surface has the color that passes through the roller is to be transferred, only accepts irregularly and just as irregularly gives off again, which is easy to explain when you consider that the leather is a net-like is a porous body, the pores of which are very different in terms of their size and arrangement are distributed.
Die Erfindung besteht darin, daß zum Aufbringen der Farbe auf die Druckform Walzen verwendet werden, die aus einem heiß vulkanisierten Gemische von entsprechend fein gemahlenen Faserstoffen mit Kautschuk, dem gegebenenfalls Guttapercha oder vulkanisierbare Öle beigemischt sind, bestehen.The invention consists in that for applying the paint to the Printing forme rollers are used, which are made from a hot vulcanized mixture of appropriately finely ground fibers with rubber, possibly gutta-percha or vulcanizable oils are mixed in.
Diese Farbwalzen besitzen keinerlei netzartige Struktur mehr und sind durch ihre Homogenität befähigt, die aufgenommene Farbe vollständig gleichmäßig wieder abzugeben.These inking rollers no longer have any network-like structure and are enabled by their homogeneity, the absorbed color completely evenly to return.
Gegenüber den gleichfalls als Farbwalzen benutzten Kautschukwalzen zeichnen sich die der Erfindung gemäß zu verwendenden Walzen dadurch aus, daß sie eine rauhere Oberfläche besitzen, was besonders für den Offsetdruck wichtig ist, bei welchem eine glatte Oberfläche ungünstig wirkt. Die rauhe Oberfläche der aus einem Gemische von Kautschuk und Faserstoffen bestehenden Walzen kann nicht durch ein künstliches Aufrauhen der Kautschukwalzen, welches auch versucht worden ist, ersetzt werden, da bei den in dieser Weise behandelten Walzen die rauhe Oberfläche nicht dauernd erhalten bleibt.Compared to the rubber rollers, which are also used as ink rollers the rollers to be used according to the invention are distinguished by the fact that they have a rougher surface, which is particularly important for offset printing, in which a smooth surface is unfavorable. The rough surface of the a mixture of rubber and fiber materials consisting of rollers cannot pass an artificial roughening of the rubber rollers, which has also been attempted, be replaced because the rough surface of the rollers treated in this way is not maintained permanently.
Man hat auch bereits Walzen aus Kautschuk und Faserstoffen hergestellt, doch sind diese Walzen nur für Schreibmaschinen benutzt worden, in denen sie mit Farbe nicht in Berührung kommen und deshalb auch nicht die Vorteile der Erfindung gewähren können.Rollers made of rubber and fiber have also been made, but these rollers have only been used for typewriters in which they have Color does not come into contact and therefore also does not benefit from the advantages of the invention can grant.
Zur Herstellung der Walzen, deren Verwendung als Farbwalzen den Gegenstand der Erfindung bildet, können entsprechend fein gemahlene Teile tierischer, pflanzlicher oder mineralischer Fasern benutzt werden. Den Faserstoffen werden als Bindemittel Körper vom Typus des Kautschuks, z. B. Kautschuk selbst, Guttapercha oder vulkanisierbare Öle, beigemischt, und das Gemisch wird heiß vulkanisiert.For the production of the rollers, their use as inking rollers is the object Forms of the invention can accordingly finely ground parts of animal, vegetable or mineral fibers can be used. The fibrous materials are used as binders Body of the rubber type, e.g. B. rubber itself, gutta-percha or vulcanizable Oils, mixed in, and the mixture is hot vulcanized.
Das Gemisch kann auch Lederteilchen enthalten, welche der Walze eine andere Beschaffenheit geben, als sie den bekannten Farbwalzen aus Leder eigen ist.The mixture can also contain leather particles, which the roller a give a different texture than is inherent in the well-known leather paint rollers.
Je nach dem Gebrauchszwecke sind die verschiedensten tierischen, pflanzlichen oder mineralischen Fasern und Mischungen solcher Fasern in Verbindung mit Kautschuk, Guttapercha usw. verwendbar. Als Bindemittel kann Kautschuk allein oder z. B. in Mischung. mit Guttapercha usw. benutzt werden. Außer den genannten Stoffen, deren Verwendung wesentlich ist, können der Mischung auch Bestandteile zugesetzt werden, die den Zweck haben, ein exaktes..Heißvulkanisieren herbeizuführen, die Walze zu- färben usw.Depending on the intended use, the most varied of animal and vegetable or mineral fibers and mixtures of such fibers in connection with rubber, Gutta-percha, etc. can be used. As a binder, rubber can be used alone or, for. Am Mixture. be used with gutta-percha, etc. Except for the substances mentioned, their use is essential, the mixture can also contain ingredients are added, which have the purpose of bringing about an exact .. hot vulcanization, to dye the roller, etc.
Die Walzenmasse wird in bekannter Weise auf Metall oder Holzkerne aufgebracht, und die so hergestellten Walzen sind alsbald nach ihrer Fertigstellung jahrelang brauchbar, während Lederwalzen erst eines Einlaufens mit Firnis bedürfen. Versuche.haben ergeben, daß eine Gleichmäßigkeit der Farbverteilung und der Farbabgabe erzielt wird, wie sie bei Lederwalzen nicht annähernd erreicht wird, Das Walzenmaterial hat außerdem den` 3toch: einzuschätzenden Vorzug; daß_das,_Waschen.. der Walzen bedeutend leichter als bei reinen Lederwalzen vonstatten geht und das Material nicht wie das der Lederwalzen dem lästigen Strecken unterworfen ist.The roller mass is in a known manner on metal or wooden cores applied, and the rollers produced in this way are soon after their completion usable for years, while leather rollers first need to be rubbed in with varnish. Experiments have shown that the color distribution and the color release are uniform is achieved, as it is not nearly achieved with leather rollers, the roller material also has the `3toch: advantage to be assessed; that_that, _washing .. the rollers is significantly easier than with pure leather rollers and the material does not how that of the leather rollers is subjected to the annoying stretching.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET33091D DE531775C (en) | 1927-02-20 | 1927-02-20 | Rollers for applying ink to printing forms |
DET33170D DE568211C (en) | 1927-02-20 | 1927-03-04 | Rollers for applying ink to printing forms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET33091D DE531775C (en) | 1927-02-20 | 1927-02-20 | Rollers for applying ink to printing forms |
Publications (1)
Publication Number | Publication Date |
---|---|
DE531775C true DE531775C (en) | 1931-11-11 |
Family
ID=7557507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET33091D Expired DE531775C (en) | 1927-02-20 | 1927-02-20 | Rollers for applying ink to printing forms |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE531775C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767895C (en) * | 1936-03-16 | 1954-09-27 | Radebeuler Maschinenfabrik Aug | Process for coloring relief forms |
DE961318C (en) * | 1951-09-20 | 1957-04-04 | Continental Gummi Werke Ag | Friction wheels or friction rollers with soft rubber pads |
DE1031262B (en) * | 1953-09-30 | 1958-06-04 | Dayton Rubber Company | Roller with a surface made of vulcanizable material for the application of fluids to textiles and process for the production of this roller |
DE19814689A1 (en) * | 1998-04-01 | 1999-10-07 | Voith Sulzer Papiertech Patent | Paper-coating machine having micro-roughened transfer roller, avoiding perfect smoothness advocated in prior art |
-
1927
- 1927-02-20 DE DET33091D patent/DE531775C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767895C (en) * | 1936-03-16 | 1954-09-27 | Radebeuler Maschinenfabrik Aug | Process for coloring relief forms |
DE961318C (en) * | 1951-09-20 | 1957-04-04 | Continental Gummi Werke Ag | Friction wheels or friction rollers with soft rubber pads |
DE1031262B (en) * | 1953-09-30 | 1958-06-04 | Dayton Rubber Company | Roller with a surface made of vulcanizable material for the application of fluids to textiles and process for the production of this roller |
DE19814689A1 (en) * | 1998-04-01 | 1999-10-07 | Voith Sulzer Papiertech Patent | Paper-coating machine having micro-roughened transfer roller, avoiding perfect smoothness advocated in prior art |
DE19814689B4 (en) * | 1998-04-01 | 2006-05-24 | Voith Paper Patent Gmbh | Apparatus for applying a liquid or pasty application medium to a moving material web, in particular of paper or cardboard |
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