EP1676957A3 - Coating apparatus - Google Patents

Coating apparatus Download PDF

Info

Publication number
EP1676957A3
EP1676957A3 EP05110624A EP05110624A EP1676957A3 EP 1676957 A3 EP1676957 A3 EP 1676957A3 EP 05110624 A EP05110624 A EP 05110624A EP 05110624 A EP05110624 A EP 05110624A EP 1676957 A3 EP1676957 A3 EP 1676957A3
Authority
EP
European Patent Office
Prior art keywords
sheet
curtain
air boundary
boundary layer
running
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
EP05110624A
Other languages
German (de)
French (fr)
Other versions
EP1676957A2 (en
EP1676957B1 (en
Inventor
Benjamin Méndez-Gallon
Manfred Ueberschär
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.)
Voith Patent GmbH
Original Assignee
Voith Patent 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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1676957A2 publication Critical patent/EP1676957A2/en
Publication of EP1676957A3 publication Critical patent/EP1676957A3/en
Application granted granted Critical
Publication of EP1676957B1 publication Critical patent/EP1676957B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D21H23/48—Curtain coaters
    • 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
    • B05C5/005—Curtain coaters

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Massaging Devices (AREA)

Abstract

A curtain coater for applying liquid to paste-like media (especially aqueous pigment suspensions) to a running sheet of paper, cardboard etc. has, in addition to an air boundary layer-abatement device on the coating side, another such device on the other side of the sheet near the point of impact of the curtain. A device for applying a liquid to paste-like medium, especially an aqueous pigment suspension (I), to one side of a running sheet of paper, cardboard or other fibrous material during its production and/or finishing. This comprises a curtain applicator (5) by means of which (I) is delivered directly onto the coating side (1a) of the sheet (1) in a free-falling, closed curtain (6) under the action of gravity, with the curtain impinging at a point (P) on an open section of sheet or on a part supporting the other side (1b) of the sheet, and with a device (2) for weakening or removing the air boundary layer, which is dedicated to the coating side (1a) and installed in the running direction (L) in front of the curtain (6). The system also has another air boundary layer abatement device (10) for air boundary layers (LG) flowing with the fibrous sheet (1), which is located on the other side (1b) of the sheet near the impact position (P) of the curtain (6).
EP05110624A 2004-12-28 2005-11-11 Coating apparatus Not-in-force EP1676957B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004063696A DE102004063696A1 (en) 2004-12-28 2004-12-28 applicator

Publications (3)

Publication Number Publication Date
EP1676957A2 EP1676957A2 (en) 2006-07-05
EP1676957A3 true EP1676957A3 (en) 2006-12-13
EP1676957B1 EP1676957B1 (en) 2010-01-13

Family

ID=36178684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05110624A Not-in-force EP1676957B1 (en) 2004-12-28 2005-11-11 Coating apparatus

Country Status (4)

Country Link
EP (1) EP1676957B1 (en)
JP (1) JP4732890B2 (en)
AT (1) ATE455209T1 (en)
DE (2) DE102004063696A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI117175B (en) * 2005-01-27 2006-07-14 Metso Paper Inc Support arrangement for paper / paperboard curtain coating
DE102006036448A1 (en) * 2006-08-04 2008-02-07 Voith Patent Gmbh applicator
DE102007026619A1 (en) 2007-06-08 2008-12-11 Voith Patent Gmbh Device for applying aqueous pigment suspension onto side of web of running paper-, cardboard-/other fibrous material web, comprises curtain coater arranged above the material web for delivering free-falling application medium curtain
DE102008039929A1 (en) * 2008-08-27 2010-03-04 Bergische Universität Wuppertal Device for applying a fluid to a textile web
DE102009046095B4 (en) * 2009-10-28 2016-07-28 Valmet Technologies, Inc. Arrangement for the control of the guided in the Florstreichvorrichtung with the web air currents
DE102017101373B4 (en) * 2017-01-25 2022-02-03 Voith Patent Gmbh Curtain applicator and method for applying an application medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345972A (en) * 1965-05-20 1967-10-10 Owens Illinois Inc Means to adjust effective width of curtain coater
DE19823686A1 (en) * 1997-05-28 1999-01-07 Mitsubishi Paper Mills Ltd Thin film coater for magnetic recording paper
DE10057731A1 (en) * 2000-11-22 2002-06-06 Voith Paper Patent Gmbh Assembly discharges liquid coating to fast moving web paper descending over a roller at a defined angle
EP1367174A1 (en) * 2000-03-14 2003-12-03 Voith Paper Patent GmbH Application device
DE20320514U1 (en) * 2003-10-22 2004-10-28 Voith Paper Patent Gmbh Assembly to apply paste or liquid coating to surface of a moving paper or carton web moves between a normal operating position and a second non-operating position

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4399915B2 (en) * 1999-09-14 2010-01-20 株式会社Ｉｈｉ Curtain coater wind pressure cutoff device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345972A (en) * 1965-05-20 1967-10-10 Owens Illinois Inc Means to adjust effective width of curtain coater
DE19823686A1 (en) * 1997-05-28 1999-01-07 Mitsubishi Paper Mills Ltd Thin film coater for magnetic recording paper
EP1367174A1 (en) * 2000-03-14 2003-12-03 Voith Paper Patent GmbH Application device
DE10057731A1 (en) * 2000-11-22 2002-06-06 Voith Paper Patent Gmbh Assembly discharges liquid coating to fast moving web paper descending over a roller at a defined angle
DE20320514U1 (en) * 2003-10-22 2004-10-28 Voith Paper Patent Gmbh Assembly to apply paste or liquid coating to surface of a moving paper or carton web moves between a normal operating position and a second non-operating position

Also Published As

Publication number Publication date
JP2006214075A (en) 2006-08-17
EP1676957A2 (en) 2006-07-05
ATE455209T1 (en) 2010-01-15
JP4732890B2 (en) 2011-07-27
DE502005008864D1 (en) 2010-03-04
EP1676957B1 (en) 2010-01-13
DE102004063696A1 (en) 2006-07-06

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