EP0047737A1 - Procede et appareil de fabrication de rouleaux a dessins continus - Google Patents

Procede et appareil de fabrication de rouleaux a dessins continus

Info

Publication number
EP0047737A1
EP0047737A1 EP80902115A EP80902115A EP0047737A1 EP 0047737 A1 EP0047737 A1 EP 0047737A1 EP 80902115 A EP80902115 A EP 80902115A EP 80902115 A EP80902115 A EP 80902115A EP 0047737 A1 EP0047737 A1 EP 0047737A1
Authority
EP
European Patent Office
Prior art keywords
layer
reservoir
exposure
photopolymer
cylindrical core
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.)
Withdrawn
Application number
EP80902115A
Other languages
German (de)
English (en)
Inventor
Lodewijk Anselrode
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.)
Stork Screens BV
Original Assignee
Stork Screens BV
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 Stork Screens BV filed Critical Stork Screens BV
Publication of EP0047737A1 publication Critical patent/EP0047737A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G03F7/20—Exposure; Apparatus therefor
    • G03F7/24—Curved surfaces

Definitions

  • This invention concerns a method for manufacturing continuos design rollers, consisting of ⁇ cylindrical core with an outside covering of elastomeric material in which method the cylindrical core, which may have an adhesion promotion layer on its surface, is coated with a layer of liquid photopolymer material , which material is cured by UV-radiation in such a way, that after development and drying a relief image of the desired shape is left.
  • liquid photopolymer material which has the property of being crosslinkable by expos ⁇ re to UV-radiation, whereupon the liquid State transforms into the solid State.
  • Elasticity and hardness of the end product are related to the chemical composition and can vary from rubber-like to relatively hard.
  • the product is then still soluble in cert ⁇ in solvente so ⁇ s chlorinated hydrocarbons or other organic solvents.
  • liquid photopolymer substances were coated in the desired thickness onto horizontally rotating cylindrical cores.
  • the thickness of the layer is controlled by means of a glass plate, on the surface of which a film is applied containing the negative pattern in UV-impermeable parts.
  • the film is covered with a very thin, UV-radiation transmitting foil, on which the photopolymer substance does not adhere.
  • Imagewise exposure of the photopolymer through the film is carried out during the coating process
  • Said Application start a method in which a vertical cylindrical member is coated with liquid material by the use of an annular reservoir, being positioned around the cylinder and fitting to the outer surface of the cylinder in such a way that a thin liquid coating is left on the surface, when the reservoir is moved in a controlled way along the cylinder from top to bottom.
  • an annular reservoir being positioned around the cylinder and fitting to the outer surface of the cylinder in such a way that a thin liquid coating is left on the surface, when the reservoir is moved in a controlled way along the cylinder from top to bottom.
  • the cured photopolymeric covering in pattern form is applied to the outside of a cylindrical core in such a way that UV-curing of the liquid photopolymeric material is carried out in at least two steps, comprising a first step in which a homogeneous exposure with UV-radiation is carried out during the process of applying a homogeneous coating of liquid photopolymer in a known manner to the outer surface of a vertically positioned cylindrical core, the exposive being such that a partial curing, preventing flow of the photopolymer is achieved, and a second step in which a pattern-wise exposure to UV-radiation is carried out, using a film, which is the negative of the desired pattern, as a mask, after which the exposed layer is developed and dried in a known way.
  • the first step of the UV-curing process is a homogeneous exposure to UV-light, due to which a viscosity increase of the photopolymer is realized which is such, that flow of the layer after application is prevented.
  • the second step of the UV-curing process can be carried out either in a separate exposure machine or in the coating apparatus itself. In both cases a film having a pattern which is the negative of the desired pattern is wrapped around the coated cylinder after which exposure is carried out in a known way.
  • a relative rotary movement between the cylindrical core and the UV-source during the first exposure step so as to ensure a perfectly homogeneous exposure of the total cylinder surface.
  • the present invention is not restricted to the use of thick-walled printing cylinder cores as are usual in printing industries.
  • Thin-walled, seamless cylinders can also be used, consisting for instance of nickel, which cylinders can be mounted in a known way on cylindrical rigid cores, by means of pneumatical processes.
  • the present invention is also embodied in an apparatus for carrying out the aforedescribed method.
  • This apparatus comprises means for mounting a cylindrical core with its central axis in a vertical position, an annular reservoir being positioned around the cylinder, fitting in a sealing way to the cylinder surface which reservoir can be moved along the cylinder in a controlled way.
  • This known apparatus comprises for the purpose of the present invention an annular UV-radiation source which exposes an area directly above the reservoir while the vertical movement of the source is identical to that of the reservoir, a UV-shield between reservoir and source and means providing a relative rotary movement of the so ⁇ rce with respect to the cylinder.
  • the drawing is a vertical cross-section of the present apparatus.
  • the apparatus consists of a cylindrical core 1 with a vertical upright axis 2.
  • Mo ⁇ nting means 3 and 4 of the core 1 are rotatably installed in bearings in frame part 5.
  • annular reservoir is situated, said reservoir consisting of a wall 6 and a sealing ring 7, co-operating with the outer surface of core 1.
  • an annular UV-so ⁇ rce 8 is moumed in fixed relationship to the reservoir and close to the reservoir.
  • UV-impermeable shield 9 is situated between source 8 and reservoir 6, 7 .
  • the reservoir 6, 7 with source 8 and shield 9 are supported on bearings 10 on Single spindles 11.
  • the spindles are interconnected in the top by means of an
  • the lower end 4 of the core 1 is, via mounting means, 14, connected with a gear box and the drive motor 16.
  • the reservoir 6, 7 can be driven together with shield 9 with uniform speed along the outer surface of core 1.
  • Motor 16 is suited to rotate core 1 slowly during the vertical movement of the reservoir.
  • motor 16 so as to rotate core 1 slowly around its vertical axis, although this is not essential for the envisaged method.
  • UV-radiation of source 8 can only radiate that part of coating, which is situated above shield 9, by which exposure the substance is th ⁇ s partially hardened so that no streaming will occur.
  • the negative film is wrapped tightly around the coating, whereupon the second exposure is carried out.
  • a uniform post-exposure step can be carried out to harden remaining quantities of not exposed photopolymer or insufficiently hardened photopolymer.
  • every type of UV-curing mix whether or not mixed with additives may be chosen, e.g.
  • photoinitiators or mixtures of different photoinitiators can be added in quantities of 0.05-10% by weight with respect to the weight of resin.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Le procede de fabrication de rouleaux a dessins sans couture s'effectue sur la surface externe d'un noyau cylindrique positionne verticalement (1), lequel noyau comprend un enrobage exterieur d'un materiau elastomere et, eventuellement, une couche contribuant a l'adhesion; le procede consiste a appliquer un revetement uniforme sur ladite surface avec une couche d'un photopolymere liquide, ladite couche etant exposee uniformement et simultanement a une source (8) de rayons UV, effectuant ainsi une polymerisation partielle de la couche fraichement deposee, ce qui empeche l'affaissement du photopolymere; pendant le procede de revetement, le noyau cylindrique et la source d'exposition de rayons UV (8) effectuent une rotation relative. Ensuite, une seconde etape de polymerisation aux UV est effectuee par exposition a dessin de la couche respective, un masque constituant le negatif du dessin desire, sur quoi la couche exposee est developpee et sechee de maniere a laisser une image en relief ayant la forme desiree.
EP80902115A 1979-11-14 1980-11-04 Procede et appareil de fabrication de rouleaux a dessins continus Withdrawn EP0047737A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7908327A NL7908327A (nl) 1979-11-14 1979-11-14 Werkwijze en inrichting voor het vervaardigen van een gedessineerde drukwals.
NL7908327 1979-11-14

Publications (1)

Publication Number Publication Date
EP0047737A1 true EP0047737A1 (fr) 1982-03-24

Family

ID=19834171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80902115A Withdrawn EP0047737A1 (fr) 1979-11-14 1980-11-04 Procede et appareil de fabrication de rouleaux a dessins continus

Country Status (7)

Country Link
EP (1) EP0047737A1 (fr)
JP (1) JPS56501542A (fr)
DK (1) DK311381A (fr)
IT (1) IT1133787B (fr)
NL (1) NL7908327A (fr)
NO (1) NO812396L (fr)
WO (1) WO1981001474A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8500992A (nl) * 1985-04-03 1986-11-03 Stork Screens Bv Werkwijze voor het vormen van een gedessineerde fotopolymeerbekleding op een drukwals alsmede drukwals met gedessineerde fotopolymeerbekleding.
ES2063737T3 (es) * 1986-06-03 1995-01-16 Cubital Ltd Aparato y metodo para modelizacion tridimensional.
US5287435A (en) * 1987-06-02 1994-02-15 Cubital Ltd. Three dimensional modeling
IL109511A (en) * 1987-12-23 1996-10-16 Cubital Ltd Three-dimensional modelling apparatus
WO1992005033A1 (fr) * 1990-04-14 1992-04-02 Toyo Ink Manufacturing Co., Ltd. Dispositif d'enduction de cylindres pour tirage en heliogravure et procede de lissage de tels cylindres
EP0785474A1 (fr) * 1996-01-16 1997-07-23 Schablonentechnik Kufstein Aktiengesellschaft Procédé et appareil pour la fabrication de plaques pour l'impression flexographique
FR2772152B1 (fr) * 1997-12-04 2000-02-18 Duchenaud Uniflexo Forme pour impression flexographique et son procede de fabrication
EP1642715B1 (fr) * 2003-07-09 2011-06-08 Asahi Kasei Chemicals Corporation Procede et dispositif permettant de fabriquer un terminal a cliche en relief pour une impression continue
US7279254B2 (en) * 2005-05-16 2007-10-09 Eastman Kodak Company Method of making an article bearing a relief image using a removable film

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1551931A (en) * 1924-08-21 1925-09-01 Tabulating Machine Co Method of sensitizing cylinders
US1911124A (en) * 1930-05-01 1933-05-23 Sam L Bingham S Son Mfg Co Machine for coating printers' rollers
US1949234A (en) * 1931-09-10 1934-02-27 Harry J Baxter Apparatus for film-coating rolls and the like
US2141852A (en) * 1936-12-24 1938-12-27 Sam L Bingham S Son Mfg Co Machine for coating printers' rollers
DE687034C (de) * 1938-03-30 1940-01-20 Erich Felchow Vorrichtung zum Auftragen einer lichtempfindlichen Schicht auf Druckzylinder
BE611541A (fr) * 1961-01-13
US3506440A (en) * 1965-03-22 1970-04-14 Mitsui Mining & Smelting Co Method of reinforcing photosensitive resists formed on photoengraving plates
NL6914613A (fr) * 1968-10-25 1970-04-28
NL170057C (nl) * 1972-12-15 1982-09-16 Stork Amsterdam Werkwijze en inrichting voor het bekleden van een vertikaal opgestelde buisvormige drukcilinder.
ZA739244B (en) * 1973-04-19 1974-11-27 Grace W R & Co Preparation of printing of pattern plates
NL7608241A (nl) * 1976-07-23 1978-01-25 Stork Brabant Bv Werkwijze en inrichting voor het bekleden van een dunwandige geperforeerde cilinder, alsmede een losneembaar hulpstuk toe te passen in deze inrichting.
US4125644A (en) * 1977-05-11 1978-11-14 W. R. Grace & Co. Radiation cured coatings for fiber optics

Also Published As

Publication number Publication date
NO812396L (no) 1981-07-13
WO1981001474A1 (fr) 1981-05-28
IT8025877A0 (it) 1980-11-11
IT1133787B (it) 1986-07-09
JPS56501542A (fr) 1981-10-22
DK311381A (da) 1981-07-13
NL7908327A (nl) 1981-06-16

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19820806

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ANSELRODE, LODEWIJK