EP0350606B1 - Dispositif d'humification d'un substrat mobile - Google Patents

Dispositif d'humification d'un substrat mobile Download PDF

Info

Publication number
EP0350606B1
EP0350606B1 EP89109445A EP89109445A EP0350606B1 EP 0350606 B1 EP0350606 B1 EP 0350606B1 EP 89109445 A EP89109445 A EP 89109445A EP 89109445 A EP89109445 A EP 89109445A EP 0350606 B1 EP0350606 B1 EP 0350606B1
Authority
EP
European Patent Office
Prior art keywords
substrate
charging
atomiser
electrode
continuous loop
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 - Lifetime
Application number
EP89109445A
Other languages
German (de)
English (en)
Other versions
EP0350606A2 (fr
EP0350606A3 (en
Inventor
Ernst-August Hahne
Hermann Künzig
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.)
Eltex Elektrostatik GmbH
Original Assignee
Eltex Elektrostatik 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 Eltex Elektrostatik GmbH filed Critical Eltex Elektrostatik GmbH
Priority to AT89109445T priority Critical patent/ATE93168T1/de
Publication of EP0350606A2 publication Critical patent/EP0350606A2/fr
Publication of EP0350606A3 publication Critical patent/EP0350606A3/de
Application granted granted Critical
Publication of EP0350606B1 publication Critical patent/EP0350606B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/14—Plant for applying liquids or other fluent materials to objects specially adapted for coating continuously moving elongated bodies, e.g. wires, strips, pipes

Definitions

  • the invention relates to a device according to the preamble of the main claim.
  • Such a device is known (DE-OS 22 19 994).
  • an electrode is provided either at a short distance from the paper web or directly adjacent to it. Apart from the fact that this device is not suitable for high-speed paper webs and can lead to destruction of the paper web, a not inconsiderable abrasion on the surface of the electrode can also be expected. In addition, direct contact with high-speed paper webs cannot be guaranteed because of the air cushion that forms between the electrode and the web.
  • this known device is only moderately suitable for moistening when substrates with a higher pre-moisture or other conductivity have to be moistened, through which the conductivity of the substrate immediately rises, whereby the penetration of the electric field through the substrate to the conductive aerosol generator is prevented or even is completely prevented. As a result, the aerosols are no longer aligned with respect to the electrode.
  • the invention has for its object to provide a generic device according to the preamble of the main claim with always good and independent of the pre-moisture efficiency. This object is achieved according to the invention in a generic device according to the preamble of the main claim that the electrode device is designed as an emitting charging device with at least one emission charging electrode (20).
  • the back of the substrate is hereby coated according to the invention even with a charge of the emitting charging electrode, so that the electric field forces act all the more on the atomizer from the charged substrate, so that the aerosols are prevented from vagabonding.
  • the electric field strength was so high that the mirror image of the high voltage is generated by influence on the grounded metallic surface of the aerosol dispenser and the detached aerosols are charged with the opposite polarity of the charging electrode so that they are charged accelerated and aligned, which, in contrast to the known device, not only wets the surface of the substrate, but can also penetrate into the pores thereof.
  • the device serves to moisten a substrate 6 in the form of a circumferential web, preferably made of paper, which is moistened by means of an atomizer 7, designated as 8 small water droplets, namely aerosols.
  • a charging device which is connected to a voltage source, designated as a whole with 13, the other side of which is grounded.
  • the other side of the voltage source denoted by 13 is provided with four individual emission charging electrodes 20, each of which, however, can also be connected individually to a high-voltage source such that the potential can be regulated separately.
  • the charge that is emitted by the emission charging electrodes 20 is applied contactlessly to the back of the substrate.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Elimination Of Static Electricity (AREA)

Claims (7)

  1. Dispositif pour humidifier un substrat mobile (6), par exemple, des rames en cours de transport ou des nappes mobiles, en particulier en papier ou en matière plastique, par un liquide, de préférence de l'eau, à l'aide d'un pulvérisateur (7) du liquide (8) orienté vers l'endroit du substrat, comportant une source de haute tension électrique (13) et un dispositif à électrodes pour le transport orienté du liquide pulvérisé sur le substrat, le dit dispositif à électrodes étant disposé sur l'envers (10) du substrat (6), CARACTERISE en ce que le dispositif à électrodes est réalisé sous la forme d'un dispositif à émission de charges comportant au moins une électrode (20) à émission de charges.
  2. Dispositif selon la revendication 1 caractérisé en ce que les différentes électrodes à émission de charges (10) peuvent être connectées à des potentiels différents.
  3. Dispositif selon la revendication 1 ou 2 caractérisé en ce que le dispositif d'émission de charges (20) est disposé de manière sensiblement symétrique par rapport au pulvérisateur (7).
  4. Dispositif selon les revendications précédentes caractérisé en ce que le dispositif d'émission de charges (20) est disposé en amont du pulvérisateur (7) vu dans la direction du mouvement du substrat.
  5. Dispositif selon la revendication 4 caractérisé en ce que le dispositif d'émission de charges (20) est disposé au même niveau que le pulvérisateur (7).
  6. Dispositif selon l'une des revendications 1 à 5 caractérisé en ce que les poulies (21) orientant le substrat (6) sont isolées.
  7. Dispositif selon la revendication 6 caractérisé en ce que la surface des poulies (21) est électriquement isolante.
EP89109445A 1988-07-13 1989-05-24 Dispositif d'humification d'un substrat mobile Expired - Lifetime EP0350606B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89109445T ATE93168T1 (de) 1988-07-13 1989-05-24 Vorrichtung zum befeuchten eines bewegten substrates.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3823739 1988-07-13
DE3823739A DE3823739A1 (de) 1988-07-13 1988-07-13 Vorrichtung zum befeuchten eines bewegten substrates

Publications (3)

Publication Number Publication Date
EP0350606A2 EP0350606A2 (fr) 1990-01-17
EP0350606A3 EP0350606A3 (en) 1990-10-24
EP0350606B1 true EP0350606B1 (fr) 1993-08-18

Family

ID=6358589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109445A Expired - Lifetime EP0350606B1 (fr) 1988-07-13 1989-05-24 Dispositif d'humification d'un substrat mobile

Country Status (4)

Country Link
EP (1) EP0350606B1 (fr)
JP (1) JPH0271861A (fr)
AT (1) ATE93168T1 (fr)
DE (2) DE3823739A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437383A1 (fr) * 1990-01-12 1991-07-17 Regie Nationale Des Usines Renault S.A. Procédé et dispositif de peinture électrostatique sur pièces plastiques
DE4227136C3 (de) * 1992-08-17 1998-08-13 Weitmann & Konrad Fa Verfahren und Vorrichtung zum Befeuchten einer bedruckten und anschließend thermisch getrockneten, bewegten Materialbahn, insbesondere Papierbahn
DE19636234C5 (de) * 1996-09-06 2005-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur elektrostatischen Beschichtung von Substraten
DE19950009B4 (de) * 1999-10-18 2012-11-22 Eltex-Elektrostatik Gmbh Vorrichtung zum Befeuchten einer Materialbahn
DE102008050899B4 (de) * 2008-09-25 2013-03-28 Gerhard Bach Vorrichtung zum Befeuchten von flexiblem Flachmaterial
US20100224123A1 (en) 2009-03-09 2010-09-09 Illinois Tool Works Inc. Modular nozzle unit for web moistening
US9186881B2 (en) 2009-03-09 2015-11-17 Illinois Tool Works Inc. Thermally isolated liquid supply for web moistening
CN102806161A (zh) * 2011-05-30 2012-12-05 张家港市佳龙真空浸漆设备制造厂 非导电卷材连续静电喷漆设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813016C (de) * 1946-09-04 1951-09-06 Philips Nv Transportvorrichtung fuer Papier und aehnliche Stoffe
DE1162729B (de) * 1959-02-20 1964-02-06 Licentia Gmbh Elektrostatische Auftragsspruehvorrichtung fuer bandfoermiges Gut
JPS5041144Y2 (fr) * 1971-05-21 1975-11-22
JPS4846630A (fr) * 1971-10-15 1973-07-03
DE2219994A1 (de) * 1972-04-24 1973-11-08 Voith Gmbh J M Vorrichtung zum auftragen von fluessigen oder pulverfoermigen mitteln auf eine laufende papierbahn
US3910475A (en) * 1973-03-15 1975-10-07 Xerox Corp System for electrically grounding or biasing a member
JPS5950797B2 (ja) * 1978-05-29 1984-12-10 神崎製紙株式会社 紙の加湿方法
DE2841395A1 (de) * 1978-09-22 1980-03-27 Brueckner Trockentechnik Kg Vorrichtung zum elektrostatischen bespruehen eines flaechigen gegenstandes
IT1163609B (it) * 1983-06-28 1987-04-08 Pecis Luigi & Co Pcm Apparecchiatura per l'applicazione di sostanze liquide su elementi lastriformi, quali tessuti, pelli e simili
JPH0673643B2 (ja) * 1986-02-10 1994-09-21 ノードソン株式会社 不導電性かつ空隙性を有する被塗物への粉体の静電塗布方法とその装置

Also Published As

Publication number Publication date
EP0350606A2 (fr) 1990-01-17
DE58905308D1 (de) 1993-09-23
DE3823739A1 (de) 1990-01-18
EP0350606A3 (en) 1990-10-24
ATE93168T1 (de) 1993-09-15
JPH0271861A (ja) 1990-03-12

Similar Documents

Publication Publication Date Title
DE2410479C3 (de) Vorrichtung zum elektrostatischen Laminieren mindestens zweier Gegenstände
DE2428331C2 (de) Absaugelektrodenanordnung für einen Tintenstrahlschreiber
EP0260539B1 (fr) Appareil de revêtement par pulvérisation
US4324198A (en) Device for the electrostatic application of material particles entrained in a stream of gas to an advancing, flat substrate
DE2646798A1 (de) Vorrichtung zur elektrischen aufladung von fluessigen oder festen teilchen in einem gasstrom
EP0350606B1 (fr) Dispositif d'humification d'un substrat mobile
CH660569A5 (de) Verfahren zum befeuchten eines plattenzylinders einer offset-druckmaschine und offset-druckmaschine.
DE2812881B2 (de) Vorrichtung zum Befeuchten und/oder Entladen elektrisch isolierender Gegenstände
EP0655030A1 (fr) Procede et dispositif d'humidification d'une bande de materiau en mouvement imprimee puis thermiquement sechee.
DE899017C (de) Vorrichtung zum elektrostatischen Spritzlackieren
EP1233834B1 (fr) Dispositif d'humidification d'une bande de materiau
DE3429075A1 (de) Vorrichtung zum elektrostatischen beschichten von gegenstaenden
CN101480639B (zh) 一种静电中和装置
EP0095051A1 (fr) Dispositif pour le traitement préalable électrique de feuilles non-conductrices
EP1321197A2 (fr) Procédé et appareil pour revêtir des substrats en mouvement
DE3611729A1 (de) Fluessigkeitssprueheinrichtung zum bespruehen von leder
US4068585A (en) Electrostatic printer support with controlled electrostatic surface voltage
DE19632899A1 (de) Vorrichtung zum Bestäuben bewegter Gegenstände, insbesondere bedruckter Papierbögen
EP0171042A1 (fr) Dispositif pour l'enduction électrostatique d'articles
DE102008047713A1 (de) Verfahren und Vorrichtung zum Aufbringen von Puder auf einen bedruckten Bogen oder eine bedruckte Bahn
DE2219994A1 (de) Vorrichtung zum auftragen von fluessigen oder pulverfoermigen mitteln auf eine laufende papierbahn
DE2546025C3 (de) Vorrichtung zum elektrostatischen Besprühen von fortlaufend transportierten Bahnen
EP0524536A2 (fr) Procédé et dispositif pour copier par contact des enregistrements magnétiques sur des bandes magnétiques
EP2794116B1 (fr) Dispositif d'électrodes et pulvérisateur électrostatique qui en est muni
DE102022113575A1 (de) Beschichtungsvorrichtung und Verfahren zum Beschichten eines flächigen Werkstückes mit der Beschichtungsvorrichtung

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19901130

17Q First examination report despatched

Effective date: 19920127

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: INTERPATENT ST.TECN. BREV.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 93168

Country of ref document: AT

Date of ref document: 19930915

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58905308

Country of ref document: DE

Date of ref document: 19930923

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19931015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19940524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940531

Ref country code: BE

Effective date: 19940531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: ELTEX-ELEKTROSTATIK G.M.B.H.

Effective date: 19940531

EAL Se: european patent in force in sweden

Ref document number: 89109445.0

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20000524

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011201

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20011201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080530

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ALDO ROEMPLER PATENTANWALT;BRENDENWEG 11 POSTFACH 154;9424 RHEINECK (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080529

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080529

Year of fee payment: 20

Ref country code: DE

Payment date: 20080630

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080529

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20090523

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090523

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080519

Year of fee payment: 20