DE717465C - Process for the bubble-free coating of metal rollers - Google Patents

Process for the bubble-free coating of metal rollers

Info

Publication number
DE717465C
DE717465C DEB188894D DEB0188894D DE717465C DE 717465 C DE717465 C DE 717465C DE B188894 D DEB188894 D DE B188894D DE B0188894 D DEB0188894 D DE B0188894D DE 717465 C DE717465 C DE 717465C
Authority
DE
Germany
Prior art keywords
coating
bubble
metal
roller
free coating
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
DEB188894D
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.)
Dr Bekk und Kaulen Chemische Fabrik GmbH
Original Assignee
Dr Bekk und Kaulen Chemische Fabrik 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 Dr Bekk und Kaulen Chemische Fabrik GmbH filed Critical Dr Bekk und Kaulen Chemische Fabrik GmbH
Priority to DEB188894D priority Critical patent/DE717465C/en
Priority to DEB190471D priority patent/DE746062C/en
Priority to CH216178D priority patent/CH216178A/en
Priority to BE439491D priority patent/BE439491A/xx
Priority to FR868013D priority patent/FR868013A/en
Application granted granted Critical
Publication of DE717465C publication Critical patent/DE717465C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F1/00—Preventing the formation of electrostatic charges
    • 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
    • G03F7/16—Coating processes; Apparatus therefor
    • G03F7/18—Coating curved surfaces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

Verfahren zur blasenfreien Beschichtung von Metallwalzen Die Erfindung bezieht sich auf ein Verfahren zur blasenfreien Beschichtung von Metallwalzen, wie solche z. B. zu Reproduktionszwecken verwendet werden.Process for the bubble-free coating of metal rolls The invention relates to a process for the bubble-free coating of metal rollers, such as such z. B. used for reproduction purposes.

Bei den bekannten Verfahren dieser Art mit erstarrenden, in der Regel hochviscosen Flüssigkeiten, besteht die Gefahr, daß sich durch elektrische Ströme zwischen der Metallwalze und dem Behälter für die Beschichtungsflüssigkeit entstehende Gasbläschen in der aufzutragenden bzw. aufgetragenen Schicht ansetzen und daß dadurch die Gleichmäßigkeit der Beschichtung leidet. Dieser Kachteil muß für viele Velwendiingszi@-eclze vermieden werden, insbesondere wenn es sich um das Aufbringen von lichtempfindlichen Schichten oder von Lackschichten auf Walzen für reproduktionstechnische Zwecke. handelt. D,--r Übelstand tritt besonders auf bei der vorzugsweise angewendeten senkrechten Beschichtung, wenn die zu beschichtende Walze in aufrechter Stellung in ein Gefäß mit- Beschichtungsflüssigkeit gesetzt oder gehängt wird zwecks Erreichung vollkommen nahloser, gleichmäßiger Beschichtung der Walze.In the known process of this type with solidifying, as a rule Highly viscous liquids, there is a risk of electrical currents between the metal roller and the container for the coating liquid Set gas bubbles in the to be applied or applied layer and that thereby the uniformity of the coating suffers. For many Velwendiingszi @ -eclze should be avoided, especially if it is the application of photosensitive Layers or layers of lacquer on rollers for reproduction purposes. acts. D, - r objection occurs particularly with the preferably used vertical Coating when the roller to be coated is in an upright position in a vessel with coating liquid is set or hung in order to achieve perfect seamless, even coating of the roller.

Um diesen Nachteil zii vermeiden, wird nach der Erfindung das Auftreten elektrischer Ströme zwischen Walze und Beschichtungsgefäß vermieden. Dies kann nach der Erfindung dadurch erreicht werden, daß die Walze aus demselben Metall besteht wie die der Walze gegenüberstehnd^n Teile der Vorrichtung, oder auch dadurch, daß alle in der Vorrichtung der Metallwalze gegenüberstehenden Metallteile von der M'alze isoliert sind, oder schließlich dadurch, daß der die Walze umgebende Behälter mit einem elektrisch isolierenden Überzug, z. B. Lack, oder einer Guminierung versehen ist bz«-. selbst aus ein in isolierenden Stoff besteht.In order to avoid this disadvantage zii, according to the invention, the occurrence electrical currents between the roller and coating vessel avoided. This can be done after of the invention can be achieved in that the roller is made of the same metal like that of the roller opposite parts of the device, or also by the fact that all metal parts in the device opposite the metal roller from the M'alze are isolated, or finally by the fact that the container surrounding the roller with an electrically insulating coating, e.g. B. lacquer, or a gum coating is bz «-. itself consists of an insulating material.

Claims (1)

PATENTANSPRÜCHE: r. Verfahren zur blasenfreien Deschichtung von Metallwalzen, wie solche z. B. zu Reproduktionszwecken verwendet werden, dadurch gekennzeichnet, daß das Auf- treten elektrischer Ströme zwisch-:ii-@Valzc und Beschichtungsgefäß vermieden wird. z. Vorrichtung zur :lusführung des Ver- fahrens nach Anspruch i, dadurch gekenn zeichnet, daß die NValze aus demselh@@n Metall besteht wie die: der Walze gegen überstehenden Teile der Vorrichtung. 3. Vorrichtung zur Ausführung des Ver- fahrens nach Anspruch i, dadurch gekenn-
zeichnet. ciaß alle in clcr Vorrichtun` cf@@! lletalhvalzegegenüberstehenden Metallteile von der Walze isoliert sind. q.. Vorrichtung nach Ansprach 3, da- durch gekennzeichnet, daß der die N\'alze umgebende Behälter mit einem elektrisch isolierenden überzug, z. B. Lack, oder einer Gummierung versehen ist bzw. selbst aii einem isolierenden Stoff besteht.
PATENT CLAIMS: r. Process for the bubble-free coating of metal rolls, such as such. B. used for reproduction purposes, characterized in that the recording occur electrical currents between-: ii- @ Valzc and coating vessel is avoided. z. Device for: executing the driving according to claim i, characterized thereby draws that the N-salt from demselh @@ n Metal is like that: the roller against protruding parts of the device. 3. Device for carrying out the driving according to claim i, characterized
draws. ciaß all in the device cf @@! lletalhvalze opposing metal parts are isolated from the roller. q .. device according to spoke 3, there- characterized by that the the N \ 'alze surrounding tanks with an electric insulating coating, e.g. B. paint, or one Rubber coating is provided or even aii an insulating material.
DEB188894D 1939-10-15 1939-10-15 Process for the bubble-free coating of metal rollers Expired DE717465C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEB188894D DE717465C (en) 1939-10-15 1939-10-15 Process for the bubble-free coating of metal rollers
DEB190471D DE746062C (en) 1939-10-15 1940-04-18 Process for the bubble-free coating of rollers
CH216178D CH216178A (en) 1939-10-15 1940-10-01 Method and device for coating rollers.
BE439491D BE439491A (en) 1939-10-15 1940-10-12
FR868013D FR868013A (en) 1939-10-15 1940-12-09 Method and device for covering printing cylinders

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB188894D DE717465C (en) 1939-10-15 1939-10-15 Process for the bubble-free coating of metal rollers
DEB190471D DE746062C (en) 1939-10-15 1940-04-18 Process for the bubble-free coating of rollers

Publications (1)

Publication Number Publication Date
DE717465C true DE717465C (en) 1942-02-14

Family

ID=25754696

Family Applications (2)

Application Number Title Priority Date Filing Date
DEB188894D Expired DE717465C (en) 1939-10-15 1939-10-15 Process for the bubble-free coating of metal rollers
DEB190471D Expired DE746062C (en) 1939-10-15 1940-04-18 Process for the bubble-free coating of rollers

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEB190471D Expired DE746062C (en) 1939-10-15 1940-04-18 Process for the bubble-free coating of rollers

Country Status (4)

Country Link
BE (1) BE439491A (en)
CH (1) CH216178A (en)
DE (2) DE717465C (en)
FR (1) FR868013A (en)

Also Published As

Publication number Publication date
CH216178A (en) 1941-08-15
FR868013A (en) 1941-12-12
DE746062C (en) 1944-06-03
BE439491A (en) 1940-11-30

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