EP0270833A1 - Procédé et appareil pour l'application d'un revêtement sur un substrat - Google Patents

Procédé et appareil pour l'application d'un revêtement sur un substrat Download PDF

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Publication number
EP0270833A1
EP0270833A1 EP87116161A EP87116161A EP0270833A1 EP 0270833 A1 EP0270833 A1 EP 0270833A1 EP 87116161 A EP87116161 A EP 87116161A EP 87116161 A EP87116161 A EP 87116161A EP 0270833 A1 EP0270833 A1 EP 0270833A1
Authority
EP
European Patent Office
Prior art keywords
substrate
coating
gas
webbing
interlayer
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
EP87116161A
Other languages
German (de)
English (en)
Other versions
EP0270833B1 (fr
Inventor
Ralph Pagendarm
Albert Hebels
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.)
Pagendarm Beschichtungstechnik GmbH
Original Assignee
Pagendarm Beschichtungstechnik 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 Pagendarm Beschichtungstechnik GmbH filed Critical Pagendarm Beschichtungstechnik GmbH
Publication of EP0270833A1 publication Critical patent/EP0270833A1/fr
Application granted granted Critical
Publication of EP0270833B1 publication Critical patent/EP0270833B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B05D1/286—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers using a temporary backing to which the coating has been applied
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/14—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a travelling band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0466—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1705—Lamina transferred to base from adhered flexible web or sheet type carrier

Definitions

  • the invention relates to a method for applying a coating agent to a continuously moving web-shaped substrate by forming at least one intermediate layer from the coating agent, drying it and then transferring it to the substrate.
  • the invention also relates to a device for applying a coating agent to a continuously moving web-shaped substrate, with at least one intermediate coating unit comprising an interlayer support interacting with the substrate and a drying device for the coating agent associated therewith.
  • a "coating agent” is to be understood to mean substances of the most varied types, such as adhesives, dyes and the like, while the term “substrate” means web-like or strip-shaped layer supports of the most varied types, such as crepe Papers, knitwear or thermoplastics.
  • the coating agent first to an interlayer support, preferably in several sublayers to numerous interlayer supports, and to remove the solvent released during the drying of these sublayers before transferring the sublayers, instead of directly loading the substrate or a substrate web to recover on the substrate web.
  • An inert gas such as nitrogen is generally used as the carrier substance for the solvent.
  • the invention has for its object to improve the efficiency or economy of such a web coating.
  • the interlayer is heated by supplying thermal energy and that the preheated interlayer is dried with the coating agent by contacting it.
  • the solvent is expelled by the direct heat effect of the interlayer on the coating agent, which in the broadest sense means drying, whereby the coating agent naturally retains its transferability to the substrate or the required adhesion (e.g. an adhesive).
  • the coating agent applied to the interlayer support is applied to the effect of a flowing gas, which is preferably an inert gas, such as nitrogen.
  • a flowing gas which is preferably an inert gas, such as nitrogen.
  • the amount of this gas can be kept relatively low, since the drying function is essentially performed by the thermal energy of the interlayer and the gas essentially serves only as a carrier substance for removing the solvent expelled from the coating agent.
  • the efficiency achieved with the method according to the invention is particularly important when the method is developed further Validity, which consists in the fact that the total thickness of the coating to be formed on the substrate is produced by dividing the coating agent into thinner individual coatings on several intermediate layer supports and successive transfer of the individual coatings to the substrate, which, according to a further proposal, gives the possibility that each individual coating of a separate gas flow is applied.
  • the drying of the individual coatings can take place in a number of fields lying one above the other in accordance with their number, so that the drying unit as a whole can be made extremely compact and can operate with correspondingly low energy without the need for air circulation systems and several temperature zones.
  • the efficiency and effectiveness or versatility of the method according to the invention can be considerably increased according to a further proposal by individually or differently formulated thin coatings are formed, which are acted upon by separate or separate gas streams. In this way, solvents adapted to the different formulations can be recovered without mixing the individual solvent-laden gas streams.
  • This procedure also allows the thick coating to be composed on the substrate from several differently formulated partial layers with different technological tasks and properties.
  • a specific property can be built up layer by layer, for example in the case of adhesive coatings only the outer or uppermost layer on the final substrate is most adhesive, the lower layers, on the other hand, can be formulated more inactive, that is, more cost-effectively.
  • the device for carrying out the method mentioned at the outset is characterized in that the drying device has heating means for heating the intermediate layer support carrying the intermediate layer formed from the coating agent. In this way, the solvent is expelled from the latter by the direct contact of the heated intermediate layer support with the intermediate layer, the intermediate layer support preferably being designed as an endless belt webbing which is particularly well suited for heating.
  • the inert gas usually used as a carrier substance for the removal of the solvent no longer needs to be heated in order to drive off the solvent, but its function can be reduced to that of a pure carrier and discharge gas. However, this can also significantly reduce the throughput of this relatively expensive gas, usually nitrogen.
  • the inert gas is best used by assigning an immediately adjacent gas line system for an inert gas to the strand of the belt webbing carrying the intermediate layer.
  • the absorption capacity of the inert gas is optimized in that the gas line system is designed to guide the inert gas in the Gesgesstrom to the direction of movement of the adjacent belt webbing.
  • the gas line system has a flow chamber spanning the webbing, which is provided with a gas inlet at the webbing outlet end and with a gas outlet at the webbing inlet end, so that a tangential gas flow which sets itself against the direction of movement of the webbing and which increases with that from the Enriching coating agent escaping solvent.
  • the interlayer carrier or the webbing When the interlayer carrier or the webbing is coated, this generally has a temperature of, for example, 70 to 90 °.
  • the heating means are provided on the underside of the webbing web, according to a further embodiment that the webbing is heated from the back to the extent that it is supposed to give energy to the coating.
  • This heating located under the interlayer support or the webbing could, for example, be in the form of contact plates.
  • a preferred embodiment consists in that the heating means are designed as heating rods irradiating the underside of the webbing.
  • the webbing is formed directly as part of an inductive heating means, after which it is provided with an iron core forming a secondary winding and is passed through an induction coil equipped with a primary winding.
  • the heating means can be controlled by measured values of a surface temperature sensor of the belt webbing.
  • interlayer supports are designed as belt straps which have carrier layers which directly absorb the intermediate or thin coatings and have different adhesion and adhesion properties.
  • the advantage achieved with the invention consists in dispensing with air circulation systems and several temperature zones in relation to the conveying direction of the interlayer supports in a considerable reduction in the relatively expensive inert gas and in an extremely compact, low-energy drying chamber.
  • the application device consists of an intermediate coating device 1 with four intermediate coating units 2 to 5, consisting of four intermediate layer carriers arranged in parallel one above the other in the form of belt straps 6 to 9 and an application device 10 interacting with the intermediate coating device 1 for the final coating of a substrate web 11 as a starting or Backing material for the production of, for example, adhesive strips.
  • the application device 10 is also assigned a direct coating agent 12 for the first coating of the substrate web 11 which runs from a supply roll 13 and rolls up onto a winding roll 14.
  • the intermediate coating device 1 incorporating the invention is composed of individual elements described in more detail below.
  • Each of the webbing 6 to 9 assigned to the intermediate coating units 2 to 5 is coated by a respective application means 15 to 18 by liquid coating with a thin intermediate layer 19 according to FIG. 4, the upper strands 20 of the webbing 6 to 9 carrying the intermediate layer 19 continuously in the direction the arrows 21 are moved. During this continuous advance, the thin intermediate layers 19 are dried by expelling the solvent contained in them. This is done by assigning heating means 22 to the undersides or rear sides of the strands 20 of the straps 6 to 9, which in the embodiment according to FIGS. 2 and 3 are designed as heating rods 24 arranged between guide rollers 23 of the strands 20. This direct heating of the straps 6 to 9, on the other hand, gives off their absorbed thermal energy directly to the intermediate layers 19 located on top of them, so that the solvent is expelled from them.
  • each of the belt straps corresponding to the belt strap 6 shown is provided with an iron core 25 forming a secondary winding and passed through an induction coil 27 equipped with a primary winding 26, so that the heat output according to the transformer principle is applied to the belt strap 6 is transmitted.
  • the belt webbing 6 of the intermediate coating unit 2 which is representative of all the webbing belts shown in FIGS. 2 to 4, is also provided with a non-contact temperature sensor 28 or alternatively with a temperature sensor 29 indicated by a broken line, which detects the temperature of the belt webbing 6 and, depending on this, the activity of the heating rods 24 Taxes.
  • a flow chamber 30 overlaps the upper strand 20 of the webbing 6 which carries the intermediate layer 19.
  • the flow chamber 30 is related to the direction of movement (arrow 21) of the webbing 6 at the end of the webbing outlet from the flow chamber with a gas inlet 31 and at the end of the webbing inlet with a gas outlet 32 for an inert gas, for example nitrogen, which counter to the direction of movement 21 of the webbing 6, d. H. flows in countercurrent in the direction of arrows 33 through the flow chamber 30 and thereby brushes the intermediate layer 19 located on the webbing 6 such that the solvent expelled from the intermediate layer by heating on the underside is absorbed by the gas flow and conveyed away for recovery.
  • an inert gas for example nitrogen
  • the gas line system having the flow chamber 30 with the gas inlet 31 and gas outlet 32 further comprises, as shown in FIG. 1, a pump 34 for each flow chamber 30 and a condenser 35 for recovering the solvent by separation from the inert carrier gas.
  • the consequent encapsulation or the mutual separation of the Separate gas line systems assigned to each intermediate coating unit 2 to 5 open up the possibility of using differently formulated intermediate layers 19 with correspondingly different solvents.
  • belt straps 6 which are adapted to the respective application and which, for example, can be provided with an individually adapted belt strap coating 37 with certain adhesion or adhesion properties on a uniformly woven carrier material 36 according to FIG.
  • the pretreated in this way i. H. dried and solvent-free thin intermediate layers 19 of the belt straps 6 to 9 are successively placed on top of each other in the region of deflection rollers 39 of the belt straps interacting with guide rollers 38 of the substrate belt 11 to form a thick coating on the substrate belt 11, a first layer being applied beforehand by the direct coating means 12 of the application device 10 the substrate tape 11 was applied.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
EP87116161A 1986-11-18 1987-11-03 Procédé et appareil pour l'application d'un revêtement sur un substrat Expired - Lifetime EP0270833B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3639487 1986-11-18
DE19863639487 DE3639487A1 (de) 1986-11-18 1986-11-18 Verfahren und vorrichtung zum auftragen eines beschichtungsmittels auf ein substrat

Publications (2)

Publication Number Publication Date
EP0270833A1 true EP0270833A1 (fr) 1988-06-15
EP0270833B1 EP0270833B1 (fr) 1991-09-04

Family

ID=6314269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116161A Expired - Lifetime EP0270833B1 (fr) 1986-11-18 1987-11-03 Procédé et appareil pour l'application d'un revêtement sur un substrat

Country Status (4)

Country Link
US (1) US4886564A (fr)
EP (1) EP0270833B1 (fr)
DE (2) DE3639487A1 (fr)
ES (1) ES2024474B3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487780A (en) * 1993-02-19 1996-01-30 Minnesota Mining & Manufacturing Company Apparatus for applying coating materials to overlapped individual sheets
US5849358A (en) * 1994-08-17 1998-12-15 Minnesota Mining And Manufacturing Company Apparatus and method for applying coating materials to individual sheet members
US5885722A (en) * 1994-02-15 1999-03-23 Minnesota Mining And Manufacturing Method for applying coating materials to overlapped individuals sheets
US6406244B1 (en) 1998-07-09 2002-06-18 Frederic P. A. Le Riche Stack of sheets with repositionable adhesive alternating between opposite edges and containing one or more sheets different from other sheets

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5108836A (en) * 1989-05-22 1992-04-28 Rexham Industries Corp. Weatherable protective surfacing film
DE4009797A1 (de) * 1990-03-27 1991-10-02 Pagendarm Gmbh Verfahren und anordnung zum kondensieren von dampffoermigen substanzen
DE4012176C2 (de) * 1990-04-14 2000-08-17 Pagendarm Technologie Gmbh Vorrichtung zum Behandeln einer beschichteten Substratbahn
DE4023442A1 (de) * 1990-07-24 1992-01-30 Pagendarm Gmbh Verfahren und vorrichtung zum trocknen einer beschichteten substratbahn
US5085167A (en) * 1990-07-27 1992-02-04 Pagendarm Gmbh Apparatus for applying coating material to a substrate
DE102008036550A1 (de) * 2008-08-06 2010-02-11 Eisenmann Anlagenbau Gmbh & Co. Kg Anlage und Verfahren zum Beschichten, insbesondere Lackieren, und Trocknen von Gegenständen, insbesondere von Fahrzeugkarosserien
FI20115764A0 (fi) * 2011-07-20 2011-07-20 Upm Raflatac Oy Etikettilaminaatti sekä menetelmä ja järjestelmä etikettilaminaatin valmistamiseksi
DE102019002528B4 (de) * 2019-04-05 2021-12-16 Allgaier Werke Gmbh Vorrichtung, Vorrichtungspaket, System und Verfahren zur industriellen Trocknung einer Suspension oder Lösung

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE2055867A1 (en) * 1970-11-13 1972-05-31 Chemieanlagenbau GmbH & Co KG, 6000 Frankfurt Applying thin plastic film - by transfer method after depositing in solvent
DE2619313A1 (de) * 1976-04-30 1977-11-10 Graphische Verfahrenstech Kg Verfahren und vorrichtung zum lackieren von flachmaterial mit photopolymerisierbaren lacken
GB2035203A (en) * 1978-11-22 1980-06-18 Sachs Systemtechnik Gmbh Method of and apparatus for producing thick contact-adhesive layers
EP0132248A2 (fr) * 1983-07-14 1985-01-23 COCKERILL SAMBRE Société Anonyme dite: Procédé et installation de cuisson d'un revêtement organique appliqué sur un support

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DE505861C (de) * 1924-10-21 1930-08-29 Cellon Werke Dr Arthur Eicheng Maschine zur Herstellung endloser duenner Folien aus Cellulosederivaten
US2336745A (en) * 1941-12-20 1943-12-14 Fred W Manning Method and apparatus for making unwoven and composite fabrics
DE1752337A1 (de) * 1968-05-10 1971-05-19 Erich Pagendarm Anlage fuer die Beschichtung diffusionsfreundlicher Kleb- und Farbstoffe u.dgl.
US3776756A (en) * 1972-02-01 1973-12-04 V Barouh Correction material and method for the manufacture thereof
DE2213974C2 (de) * 1972-03-22 1975-01-23 Bostik Gmbh, 6370 Oberursel Vorrichtung zum maschinellen Verkleben von Werkstücken mittels eines Schmelzklebstoffes
US4020194A (en) * 1974-12-30 1977-04-26 Acumeter Laboratories, Inc. Process for discontinuous coating of a web by periodic deflection thereof against a fluid coating
DE2724012C2 (de) * 1977-05-27 1983-11-24 Sachs Systemtechnik Gmbh, 8720 Schweinfurt Vorrichtung zur Herstellung dicker Haftkleberschichten
AU511678B2 (en) * 1977-08-29 1980-08-28 Airco Inc. Recovering solvents from drying ovens
US4233358A (en) * 1978-10-13 1980-11-11 Clemead Limited Method for the production of waterproof and like fabrics
DE2911648A1 (de) * 1979-03-24 1980-09-25 Winner Texplast Ag Anlage zur beschichtung und ausruestung von flaechenfoermigen materialbahnen und verfahren zur beschichtung und ausruestung von flaechenfoermigen materialbahnen
US4326343A (en) * 1980-06-10 1982-04-27 Rathmell Richard K Apparatus and method for recovering volatile compounds
DE3038791C2 (de) * 1980-10-14 1985-08-01 Lohmann Gmbh & Co Kg, 5450 Neuwied Vorrichtung zum Trocknen von lösungsmittelhaltigem Material
US4370357A (en) * 1981-03-11 1983-01-25 Cleveland Gear Company Process of continuous metal coating
DE3146828C2 (de) * 1981-09-23 1983-12-01 Kleinewefers Gmbh, 4150 Krefeld Vorrichtung zum kontinuierlichen Auftragen einer Kleinstmenge an Flüssigkeit auf eine Materialbahn
US4475293A (en) * 1982-04-28 1984-10-09 The Boc Group, Inc. Controlled inerting of chamber atmospheres
US4698110A (en) * 1985-11-27 1987-10-06 E. I. Du Pont De Nemours And Company Preparation of fluoropolymer coated material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2055867A1 (en) * 1970-11-13 1972-05-31 Chemieanlagenbau GmbH & Co KG, 6000 Frankfurt Applying thin plastic film - by transfer method after depositing in solvent
DE2619313A1 (de) * 1976-04-30 1977-11-10 Graphische Verfahrenstech Kg Verfahren und vorrichtung zum lackieren von flachmaterial mit photopolymerisierbaren lacken
GB2035203A (en) * 1978-11-22 1980-06-18 Sachs Systemtechnik Gmbh Method of and apparatus for producing thick contact-adhesive layers
EP0132248A2 (fr) * 1983-07-14 1985-01-23 COCKERILL SAMBRE Société Anonyme dite: Procédé et installation de cuisson d'un revêtement organique appliqué sur un support

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6254678B1 (en) 1993-02-19 2001-07-03 Minnesota Mining & Manufacturing Company Apparatus for applying coating materials to overlapped individual sheets
US5487780A (en) * 1993-02-19 1996-01-30 Minnesota Mining & Manufacturing Company Apparatus for applying coating materials to overlapped individual sheets
US5885722A (en) * 1994-02-15 1999-03-23 Minnesota Mining And Manufacturing Method for applying coating materials to overlapped individuals sheets
US5972113A (en) * 1994-08-17 1999-10-26 Minnesota Mining And Manufacturing Company Apparatus and method for applying coating materials to individual sheet members
US5868838A (en) * 1994-08-17 1999-02-09 Minnesota Mining & Manufacturing Company Apparatus and method for applying coating materials to individual sheet members
US5863330A (en) * 1994-08-17 1999-01-26 Minnesota Mining And Manufacturing Company Apparatus and method for applying coating materials to individual sheet meters
US5916630A (en) * 1994-08-17 1999-06-29 Minnesota Mining And Manufacturing Company Apparatus and method for applying coating materials to individual sheet members
US5958135A (en) * 1994-08-17 1999-09-28 Minnesota Mining And Manufacturing Company Apparatus and method for applying coating materials to individual sheet members
US5851592A (en) * 1994-08-17 1998-12-22 Minnesota Mining And Manufacturing Company Apparatus and method for applying coating materials to individual sheet members
US6040006A (en) * 1994-08-17 2000-03-21 3M Innovative Properties Company Apparatus and method for applying coating materials to individual sheet members
US6074704A (en) * 1994-08-17 2000-06-13 3M Innovative Properties Company Apparatus and method for applying coating materials to individual sheet members
US5849358A (en) * 1994-08-17 1998-12-15 Minnesota Mining And Manufacturing Company Apparatus and method for applying coating materials to individual sheet members
US6517900B1 (en) 1994-08-17 2003-02-11 3M Innovative Properties Company Apparatus and method for applying coating materials to individual sheet members
US6551654B1 (en) 1994-08-17 2003-04-22 3M Innovative Properties Company Apparatus and method for applying coating materials to individual sheet members
US6669992B2 (en) 1997-07-11 2003-12-30 3M Innovative Properties Company Stack of sheets with repositionable adhesive alternating between opposite edges and containing one of more sheets different from other sheets
US6406244B1 (en) 1998-07-09 2002-06-18 Frederic P. A. Le Riche Stack of sheets with repositionable adhesive alternating between opposite edges and containing one or more sheets different from other sheets

Also Published As

Publication number Publication date
EP0270833B1 (fr) 1991-09-04
DE3639487A1 (de) 1988-05-19
US4886564A (en) 1989-12-12
DE3772725D1 (de) 1991-10-10
ES2024474B3 (es) 1992-03-01

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