EP0584674A3 - Device for generating a vacuum - Google Patents

Device for generating a vacuum Download PDF

Info

Publication number
EP0584674A3
EP0584674A3 EP19930112999 EP93112999A EP0584674A3 EP 0584674 A3 EP0584674 A3 EP 0584674A3 EP 19930112999 EP19930112999 EP 19930112999 EP 93112999 A EP93112999 A EP 93112999A EP 0584674 A3 EP0584674 A3 EP 0584674A3
Authority
EP
European Patent Office
Prior art keywords
compressed air
carrier material
nozzle
coating
application layer
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.)
Granted
Application number
EP19930112999
Other languages
German (de)
French (fr)
Other versions
EP0584674A2 (en
EP0584674B1 (en
Inventor
Uwe Dipl.-Ing. Gartmann
Hermann Idstein
Günter Dr. Hultzsch
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.)
Agfa Gevaert AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0584674A2 publication Critical patent/EP0584674A2/en
Publication of EP0584674A3 publication Critical patent/EP0584674A3/en
Application granted granted Critical
Publication of EP0584674B1 publication Critical patent/EP0584674B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0266—Coating heads with slot-shaped outlet adjustable in length, e.g. for coating webs of different width

Abstract

Eine Vorrichtung 1 zum Erzeugen eines Unterdrucks an einer Antragsschicht auf einem bahnförmigen Trägermaterial 5, das über eine Beschichtungswalze 3 geführt ist, wird symmetrisch über zwei sich gegenüberliegende, stirnseitige Einströmöffnungen 13, 22 mit Druckluft beaufschlagt. Diese Druckluft wird symmetrisch über eine Verteilereinheit 23 der Vorrichtung 1 zugeführt. Diese Druckluft tritt über eine sogenannte Lavaldüse aus und erzeugt dabei oberhalb dieser Lavaldüse einen Unterdruck, der auf den Meniskus der Antragsschicht, beim Übergang aus dem Spalt der Beschichtungsdüse auf das Trägermaterial 4 einwirkt. In der Vorrichtung 1 sind verschiebbare Abdichtungen 27 vorgesehen, die es ermöglichen, die Breite der Düse an die Beschichtungsbreite des Trägermaterial 4 anzupassen. A device 1 for generating a vacuum an application layer on a web-shaped carrier material 5, which via a coating roller 3 is symmetrical over two itself opposite, front-side inflow openings 13, 22 acted upon with compressed air. This compressed air will symmetrically via a distribution unit 23 of the device 1 fed. This compressed air passes through a so-called Laval nozzle and creates above this Laval nozzle a negative pressure, which on the Meniscus of the application layer when moving from the Gap of the coating nozzle on the carrier material 4 acts. In the device 1 are slidable Seals 27 are provided which allow the Width of the nozzle to the coating width of the Adapt carrier material 4.

EP93112999A 1992-08-22 1993-08-13 Apparatus for coating a web Expired - Lifetime EP0584674B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4227908 1992-08-22
DE4227908A DE4227908A1 (en) 1992-08-22 1992-08-22 Device for generating a vacuum

Publications (3)

Publication Number Publication Date
EP0584674A2 EP0584674A2 (en) 1994-03-02
EP0584674A3 true EP0584674A3 (en) 1994-03-16
EP0584674B1 EP0584674B1 (en) 1998-11-25

Family

ID=6466186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112999A Expired - Lifetime EP0584674B1 (en) 1992-08-22 1993-08-13 Apparatus for coating a web

Country Status (4)

Country Link
US (1) US5443638A (en)
EP (1) EP0584674B1 (en)
JP (1) JPH06182848A (en)
DE (2) DE4227908A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5738724A (en) * 1996-08-06 1998-04-14 Westvaco Corporation Actuator assembly for coater blade load adjustment
DE19839916A1 (en) * 1998-09-02 2000-03-09 Jagenberg Papiertech Gmbh Method and apparatus for reducing the volume or pressure of a fluid being dragged into a gap by moving surfaces
DE19848809A1 (en) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Winding device for especially paper length has scraper brushes located in front of winding gap to scrape air off paper/winding reel surfaces
DE19848807A1 (en) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Winding device especially for paper length has displace surface near run-in gusset and paper length in front of winding gap, to displace air border layers
JP4059709B2 (en) * 2002-05-29 2008-03-12 富士フイルム株式会社 Thin film coating method and apparatus
US7092855B2 (en) * 2003-05-30 2006-08-15 Avery Dennison Corporation Thermo-stable coating die design method and apparatus
FI115547B (en) * 2003-12-22 2005-05-31 Metso Paper Inc Control of the air boundary layer
KR101944240B1 (en) 2011-05-27 2019-01-31 에이케이 스틸 프로퍼티즈 인코포레이티드 Meniscus coating apparatus and method
US11951509B2 (en) 2013-09-10 2024-04-09 Awi Licensing Llc System for applying a coating to a workpiece
US9266141B2 (en) 2013-09-10 2016-02-23 Awi Licensing Company System for applying a coating to a workpiece
DE202014011120U1 (en) 2014-03-14 2018-01-04 Olbrich Gmbh Apparatus for coating a web-shaped carrier material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU57983A1 (en) * 1968-02-14 1969-05-22
US3640752A (en) * 1966-05-02 1972-02-08 Fuji Photo Film Co Ltd Coating method
FR2270952A1 (en) * 1974-05-15 1975-12-12 Agfa Gevaert Ag
EP0038526A1 (en) * 1980-04-17 1981-10-28 E.I. Du Pont De Nemours And Company Apparatus for coating a web with a viscous coating material
US4490418A (en) * 1982-04-16 1984-12-25 Fuji Photo Film Co., Ltd. Coating method and apparatus
EP0168986A2 (en) * 1984-07-06 1986-01-22 E.I. Du Pont De Nemours And Company Device for the application of at least one coating layer and a process for the operation of this device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE513714A (en) * 1951-08-23 1900-01-01
US3735729A (en) * 1970-09-24 1973-05-29 Eastman Kodak Co Apparatus for coating a continuous web
US3916043A (en) * 1971-11-15 1975-10-28 Eastman Kodak Co Method of coating a spliced web
CH624526B (en) * 1977-12-19 Polytype Ag METHOD AND DEVICE FOR APPLYING FLOWABLE APPLICATION MEDIA TO TWO-DIMENSIONAL RAILWAYS OR. ARCH-SHAPED SUBSTRATES OR THREE-DIMENSIONAL SHAPED BODIES WITH CURVED SURFACES.
DE3022955C2 (en) * 1980-06-19 1982-12-16 Jagenberg-Werke AG, 4000 Düsseldorf Device for regulating the application thickness when coating moving material webs
US4445458A (en) * 1982-07-21 1984-05-01 E. I. Du Pont De Nemours And Company Beveled edge metered bead extrusion coating apparatus
DE3309343C2 (en) * 1983-03-16 1986-08-14 Du Pont de Nemours (Deutschland) GmbH, 4000 Düsseldorf Device for applying at least one casting layer
EP0286755B1 (en) * 1987-04-16 1995-03-15 Yasui Seiki Co., Ltd. Coating feeder system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640752A (en) * 1966-05-02 1972-02-08 Fuji Photo Film Co Ltd Coating method
LU57983A1 (en) * 1968-02-14 1969-05-22
FR2270952A1 (en) * 1974-05-15 1975-12-12 Agfa Gevaert Ag
EP0038526A1 (en) * 1980-04-17 1981-10-28 E.I. Du Pont De Nemours And Company Apparatus for coating a web with a viscous coating material
US4490418A (en) * 1982-04-16 1984-12-25 Fuji Photo Film Co., Ltd. Coating method and apparatus
EP0168986A2 (en) * 1984-07-06 1986-01-22 E.I. Du Pont De Nemours And Company Device for the application of at least one coating layer and a process for the operation of this device

Also Published As

Publication number Publication date
US5443638A (en) 1995-08-22
JPH06182848A (en) 1994-07-05
DE4227908A1 (en) 1994-02-24
EP0584674A2 (en) 1994-03-02
DE59309151D1 (en) 1999-01-07
EP0584674B1 (en) 1998-11-25

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