DE676259C - Device for drying a web of gravure paper running through a narrow box - Google Patents

Device for drying a web of gravure paper running through a narrow box

Info

Publication number
DE676259C
DE676259C DEK132645D DEK0132645D DE676259C DE 676259 C DE676259 C DE 676259C DE K132645 D DEK132645 D DE K132645D DE K0132645 D DEK0132645 D DE K0132645D DE 676259 C DE676259 C DE 676259C
Authority
DE
Germany
Prior art keywords
drying
box
web
nozzles
suction nozzles
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
DEK132645D
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.)
KADUS WERK GmbH
Original Assignee
KADUS WERK 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
Application filed by KADUS WERK GmbH filed Critical KADUS WERK GmbH
Priority to DEK132645D priority Critical patent/DE676259C/en
Application granted granted Critical
Publication of DE676259C publication Critical patent/DE676259C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403Drying webs
    • B41F23/0423Drying webs by convection
    • B41F23/0426Drying webs by convection using heated air

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drying Of Solid Materials (AREA)

Description

Vorrichtung zum Trocknen einer durch einen engen Kasten laufenden Tiefdiuckpapierban Die Erfindung bezieht sich auf Vorrichtungen zum Trocknen von Tiefdruckpapierbahnen, bei denen die Papierbahn durch einen engen Kasten läuft, der in der Kastendecke, also dicht über der Papierbahn, in deren Breitenrichtung Blas- und Saugdüsen hat; so daß das vom den Blasdüsen aufgeblasene Trockenmittel zu den Saugdüsen fließt.Device for drying a running through a narrow box Tiefdiuckpapierban The invention relates to devices for drying Gravure paper webs where the paper web runs through a narrow box, the one in the top of the box, i.e. just above the paper web, in the direction of its width Has blowing and suction nozzles; so that the desiccant inflated by the blower nozzles flows to the suction nozzles.

Bei den bekannten Trockenvorrichtungen dieser Art besteht infolge der durch die neuzeitlichen Trockenverfahren erreichten hohen Paplerhähngeschwindigkeit die Möglichkeit, daß Farblösungsmitteldämpfe nach außen mitgerissen werden. Ferner ist die Bla.sdüsenenergie an der Einlaufseite der Papierbahn ebenfalls sehr stark, so daß auch an dieser Stelle Farblösungsmittel in den Arbeitsraum dringen könneu.In the known drying devices of this type, there is a result the high papler cockerel speed achieved by modern drying processes the possibility of paint solvent vapors being entrained to the outside. Further the jet energy on the entry side of the paper web is also very strong, so that paint solvents can penetrate into the work area at this point as well.

Da in der modernen Druckereitechnik mit Lösungsmitteln, wie Xylol und Toluol, gearbeitet wird, deren Dämpfe in hohem Maße gesundheitsschädlich sind, so ist es beim Trocknen von Tiefdruckpapierbahnen erforderlich, für eine zuverlässige Abdichtung des Trockenkasteninern zu sorgen.As in modern printing technology with solvents such as xylene and toluene, the vapors of which are highly harmful to health, so it is necessary for a reliable drying of gravure paper webs To ensure sealing of the drying box interior.

Hierzu kommt noch, daß die Farblösungsmittel verhältnismäßig teuer sind und man deshalb danach strebt, ihre beim Trockenvorgang entstehenden Dämpfe nach Möglichkeit zurückzugewinnen: Es ist deshalb auch unter diesem Gesichtspunkt wichtig, bei bedruckten Papierbahnen den Austritt von mit Lösungsmitteldämpfen beladener Luft an den Ein- und Austrittsstellen der Papierbahnen mit Sicherheit zu vermeiden.In addition, the color solvents are relatively expensive are and one therefore strives to remove the vapors they produce during the drying process to win back if possible: It is therefore also from this point of view important, in the case of printed paper webs, the escape of those laden with solvent vapors Avoid air at the entry and exit points of the paper webs with certainty.

Zu - diesem Zweck wird daher gemäß der Erfindung vorgeschlagen, an den Kastenenden nur Saugdüsen anzuordnen, so daß die Lösungsmitteldämpfe gezwungen werden, in die Saugdüsen einzutreten und nicht aus dem Kasten herausgelangen können. In der Zeichnung ist -eine Ausführungsform der Erfindung beispielsweise dargestellt.For this purpose it is therefore proposed according to the invention to the box ends only to arrange suction nozzles, so that the solvent vapors are forced to enter the suction nozzles and not be able to get out of the box. In the drawing, an embodiment of the invention is shown as an example.

Die Tiefdruckpapierbahn i läuft in der Pfeilrichtung eine Strecke weit durch den Trockenkasten z. In diesem Kasten sitzen quer zur Bahnrichtung eine Anzahl Langschlitzdüsen 3, die an Beine gemeinsame Zuleitung für das Trockenmittel angeschlossen sind. Abwechselnd mit den Blasdüsen sind ebenfalls als Langschlitzdüsen ausgebildete Saugdüsen. q. angeordnet, die mit einer gemeinsamen Saugleitung in Verbindung stehen. Die Anordnung der Saugdüsen ist dabei erfindungsgemäß derart, daß an den Kastenenden nur Saugdüsen sich befinden. Vor den Düsen sitzt dicht über der laufenden Bahn die Zwischenwand 5, die die Zwischenräume zwischen den Blas- und Saugschlitzen vollständig abdeckt und nur den Düsenschlitzen entsprechende öffnungen hat: Aus den Blasdüsen 3 strömt das Trockenmittel unter Druck auf die laufende Bahn und weiter unter Pressung zwischen der Wand 5 und der Oberfläche .der Bahn zu den Saugdüsen, wobei ges sich mit den abzuführenden Dämpfen anreichert. Dadurch, daß an den Kastenenden nur- Saugdüsen sich befinden, wird erreicht, daß sein Austritt der Farblösungsmittel aus dem Trockenkasten vermieden wird.The gravure paper web i runs a distance in the direction of the arrow far through the drying box z. In this box, there are one at right angles to the direction of the web Number of long slot nozzles 3, the common feed line for the desiccant on legs are connected. Alternating with the blow nozzles are also available as long slot nozzles trained suction nozzles. q. arranged, which with a common suction line in Connected. According to the invention, the arrangement of the suction nozzles is such that that there are only suction nozzles at the ends of the box. In front of the nozzles sits tight over the running web the partition 5, which the spaces between the blowing and suction slots completely and only openings corresponding to the nozzle slots has: The desiccant flows from the blow nozzles 3 under pressure onto the running web and further under pressure between the wall 5 and the surface of the web to the Suction nozzles, whereby ges is enriched with the vapors to be discharged. As a result of that there are only suction nozzles at the ends of the box, it is achieved that its exit the paint solvent from the dry box is avoided.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Trocknen einer durch ,einen sengen Kasten laufenden Tnefdruckpapi:erbahn, bei der in der Kastendecke,-also dicht über der Papierbahn, in deren Breitenrichtüng Blas- und Saugdüsen an-. geordnet sind, so daß das von den Blasdüsen aufgeblasene Trockenmittel zu den Saugdüsen fließt, dadurch gekennzeichnet, daß die an ,den Kastenenden liegenden Düsen nur Saugdüsen sind.PATENT CLAIM: Device for drying one through, one singe Box running Tnefdruckpapi: erbahn, in the case of the box cover, -so close above the paper web, in the width direction of which blowing and suction nozzles are attached. are ordered so that the desiccant blown by the blower nozzles flows to the suction nozzles, characterized in that the nozzles lying on the box ends are only suction nozzles are.
DEK132645D 1932-10-12 1932-10-12 Device for drying a web of gravure paper running through a narrow box Expired DE676259C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK132645D DE676259C (en) 1932-10-12 1932-10-12 Device for drying a web of gravure paper running through a narrow box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK132645D DE676259C (en) 1932-10-12 1932-10-12 Device for drying a web of gravure paper running through a narrow box

Publications (1)

Publication Number Publication Date
DE676259C true DE676259C (en) 1939-05-31

Family

ID=7247667

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK132645D Expired DE676259C (en) 1932-10-12 1932-10-12 Device for drying a web of gravure paper running through a narrow box

Country Status (1)

Country Link
DE (1) DE676259C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442611A (en) * 1980-03-08 1984-04-17 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Air lock, particularly to permit drying of a printed web in a controlled atmosphere

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442611A (en) * 1980-03-08 1984-04-17 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Air lock, particularly to permit drying of a printed web in a controlled atmosphere

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