DE759284C - Process for coating cylinders, in particular printing form cylinders, with light-sensitive materials - Google Patents

Process for coating cylinders, in particular printing form cylinders, with light-sensitive materials

Info

Publication number
DE759284C
DE759284C DEB188096D DEB0188096D DE759284C DE 759284 C DE759284 C DE 759284C DE B188096 D DEB188096 D DE B188096D DE B0188096 D DEB0188096 D DE B0188096D DE 759284 C DE759284 C DE 759284C
Authority
DE
Germany
Prior art keywords
cylinders
coating
temperature
light
printing form
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
DEB188096D
Other languages
German (de)
Inventor
Robert Kaulen
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 DEB188096D priority Critical patent/DE759284C/en
Application granted granted Critical
Publication of DE759284C publication Critical patent/DE759284C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/02—Ethers
    • C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
    • C07C43/04—Saturated ethers
    • C07C43/12—Saturated ethers containing halogen
    • C07C43/123—Saturated ethers containing halogen both carbon chains are substituted by halogen atoms
    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Printing Plates And Materials Therefor (AREA)

Description

Im Patent 708090 ist ein Verfahren zum gleichmäßigen Beschichten von Druckformzyliradern u. dgl. beschrieben,, bei dem der zu beschichtende Körper aufrecht in einen Behalter eingestellt wird, der dann mit der Beschichtungsflüssiigkeit gefüllt und aus- dem diese sodann wieder abgelassen wird, vo'rzugS'-weise langsam und mit gleichbleibender Geschwindigkeit. Es wurde farmer in dem Hauptpatent vorgeschlagen, das Antrocknen der Beschichtungsflüssiigkeit an' den· Zylinder da-In patent 708090 is a method for uniform coating of printing form cylinder wheels and the like described, in which the body to be coated is upright in a container which is then filled with the coating liquid and removed from it this is then drained off again, preferably slowly and at a constant speed. It became farmer in the main patent proposed that the coating liquid should dry on the cylinder

! durch zu unterstützen, daß der Zylinder vor oder während der Beschichtung derart erwärmt wird, daß die Beschiehtungsflüssigkeit schnell an ihm festtracknet, und zwar vorzugsweise in dem Maße, wie die Fllüssigkeit aus dem Behälter abgelassen wird, was vor oder während, gegebenenfallis auch sowohl vor als während der Beschichtung stattfinden kann. Eine Schwierigkeit liegt hierbei in der Gefahr der Bläschenbildung. Wenn sich Luftbläschen an der zu. beschichtenden Fläche an,-! by helping that the cylinder is heated in this way before or during the coating is that the coating liquid quickly clings to it, preferably to the same extent as the liquid is drained from the container, which is before or during, optionally also both before and can take place during the coating. One difficulty here is the danger the formation of bubbles. If there are air bubbles on the too. coating surface on,

setzen, können an den entsprechenden Stellen der Schicht Fehlstellen entstehen.defects can occur at the corresponding points in the layer.

Es hat sich nun herausgestellt, daß diese Schwierigkeit weitgehend überwunden werden kanra, wenn die Temperatur des Zylinders mit Bezug auf die Temperatur der Beschichtungsfiüssiigkeiit so abgestimmt wird, daß die Zylindertemperatur der Temperatur der Beschichitungsflüssigkeiit ziemlich nahekommt,It has now been found that this difficulty is largely overcome kanra when the temperature of the cylinder is coordinated with reference to the temperature of the coating liquid so that the Cylinder temperature the temperature of the coating liquid comes pretty close,

ίο letztere aber nicht überschreitet, wobei vorzugsweise so gearbeitet wird, daß die Temperatur des Zylinders in keinem Stadium des eigentlichen Beschichtungsvorganges, d. h. solange Beschichtungsflüssigkeitsvorrat und Zylinder miteinander in Berührung stehen, höher ist als die Temperatur der Beschichtutigsflüssiigkeit. Es· hat sich nämlich gezeigt, daß nur eine höhere Temperatur Anlaß zur Entstehung von Luftblasen geben kann. Die Temperatur der Beschichtungsflüssigkeit wird daher zweckmäßig etwas höher gehalten als die Temperatur des Zylinders. Im Grenzfall können beide Temperaturen, gleich sein.ίο but does not exceed the latter, being preferred it is worked in such a way that the temperature of the cylinder is not at any stage of the actual coating process, i.e. H. as long as the coating liquid supply and cylinder are in contact with one another, is higher than the temperature of the coating liquid. It has been shown that only a higher temperature gives rise to The formation of air bubbles can occur. The temperature of the coating liquid becomes therefore appropriately kept somewhat higher than the temperature of the cylinder. In the borderline case both temperatures can be the same.

Zufriedenstellende Resultate für die Be-Satisfactory results for the

«5 schichtung kupferner Druckwalzen ergaben sich beispielsweise, wenn während der Beschichtung die Temperatur des Zylinders auf etwa 400C gehalten wurde, während die Beschichtungsflüssigkeit eine einige Celsiusgrade höhere Temperatur, beispielsweise 450C aufwies."5 copper coating pressure rollers resulted, for example, when the temperature of the cylinder was maintained at about 40 0 C during the coating while the coating liquid had a few degrees Celsius higher temperature, for example, 45 0 C.

Es versteht sich, daß auch andere Temperaturen angewendet werden können. So kann man durch Änderung der Temperaturen die Schichtdicke variieren.It will be understood that other temperatures can also be used. So can the layer thickness can be varied by changing the temperatures.

Claims (1)

Patentanspruch:Claim: Verfahren zum gleichmäßigen Beschichten von Zylindern u. dgl. mit lichtempfindlichen Massen nach Patent 708 090, insbesondere mit einer photographischen Kopierlösung, dadurch gekennzeichnet, daß die Temperatur dös in aufrechter Stellung in einem Behälter untergebrachten Zylinders oder sonstigen zu beschichtenden Körpers während des Ablassen« der Flüssigkeit aus- dem Behälter nahe unterhalb, höchstens gleich der Temperatur der Beschichtungsflüssigkeit gehalten wird.Process for uniformly coating cylinders and the like with photosensitive Compounds according to patent 708 090, in particular with a photographic copier solution, characterized in that that the temperature is housed in an upright position in a container Cylinder or other body to be coated during the lowering of the Liquid from the container close below, at most equal to the temperature of the Coating liquid is held. © 5216 6.© 5216 6.
DEB188096D 1938-08-04 1939-07-20 Process for coating cylinders, in particular printing form cylinders, with light-sensitive materials Expired DE759284C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB188096D DE759284C (en) 1938-08-04 1939-07-20 Process for coating cylinders, in particular printing form cylinders, with light-sensitive materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB184182D DE708090C (en) 1938-08-04 1938-08-04 Process for the uniform coating of cylinders, in particular printing form cylinders, with light-sensitive materials
DEB188096D DE759284C (en) 1938-08-04 1939-07-20 Process for coating cylinders, in particular printing form cylinders, with light-sensitive materials

Publications (1)

Publication Number Publication Date
DE759284C true DE759284C (en) 1953-06-22

Family

ID=27430851

Family Applications (2)

Application Number Title Priority Date Filing Date
DEB184182D Expired DE708090C (en) 1938-08-04 1938-08-04 Process for the uniform coating of cylinders, in particular printing form cylinders, with light-sensitive materials
DEB188096D Expired DE759284C (en) 1938-08-04 1939-07-20 Process for coating cylinders, in particular printing form cylinders, with light-sensitive materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEB184182D Expired DE708090C (en) 1938-08-04 1938-08-04 Process for the uniform coating of cylinders, in particular printing form cylinders, with light-sensitive materials

Country Status (5)

Country Link
BE (1) BE435790A (en)
CH (2) CH213270A (en)
DE (2) DE708090C (en)
FR (2) FR858556A (en)
GB (1) GB531854A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079951B (en) * 1958-09-17 1960-04-14 Bekk & Kaulen Dr Method and device for seamless coating of printing cylinders
JPS594466A (en) * 1982-06-29 1984-01-11 Mitsubishi Chem Ind Ltd Holding device for cylindrical body
JPH0634956B2 (en) * 1987-08-06 1994-05-11 セントラル硝子株式会社 Thin film coating method and apparatus

Also Published As

Publication number Publication date
FR865446A (en) 1941-05-23
CH213270A (en) 1941-01-31
FR858556A (en) 1940-11-28
CH219142A (en) 1942-01-31
BE435790A (en) 1939-09-30
DE708090C (en) 1941-07-11
GB531854A (en) 1941-01-13

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