EP2083119A1 - Unité d'application de rideau - Google Patents

Unité d'application de rideau Download PDF

Info

Publication number
EP2083119A1
EP2083119A1 EP09151000A EP09151000A EP2083119A1 EP 2083119 A1 EP2083119 A1 EP 2083119A1 EP 09151000 A EP09151000 A EP 09151000A EP 09151000 A EP09151000 A EP 09151000A EP 2083119 A1 EP2083119 A1 EP 2083119A1
Authority
EP
European Patent Office
Prior art keywords
curtain
coating
edge guide
edge
interior surface
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
EP09151000A
Other languages
German (de)
English (en)
Other versions
EP2083119B1 (fr
Inventor
Toshihiro Katano
Tadashi Sasa
Hiroyuki Kohno
Akio Hirano
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 EP2083119A1 publication Critical patent/EP2083119A1/fr
Application granted granted Critical
Publication of EP2083119B1 publication Critical patent/EP2083119B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B05C5/007—Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
    • B05C5/008—Slide-hopper curtain coaters

Definitions

  • curtain coater has long been used for photographic paper, but because of the instability of the curtain layer due to the trapping of air, bubbles trapped in the applied bar, high speeds, or lack of mechanical accuracy, the order was not stable that they have not been used for paper or board production for a long time.
  • FIG. 5 shows a schematic representation of a known from practice edge guide.
  • the edge guide 2 is made of a metal such as stainless steel and should prevent the constriction.
  • the speed v of the curtain c is, as shown here, low in the region of the edge guide 2 and outside the range of the edge guide 2, the speed is uniform. If the flow rate is low in this situation, the curtain c is detached from the edge guide 2 and the said unwanted constriction occurs.
  • the present invention is not limited to an embodiment of the embodiment as described above, but also various changes are possible within a frame in which the main contents of the invention are not violated. It can e.g. aluminum oxide coatings or titanium oxide coatings may be mentioned as hydrophilic coatings, but these are only examples, and other materials may be used. Further, it has been explained that the curtain c is a simple curtain output from a single curtain head 1, but it may also be a multi-layer curtain output from two or more curtain heads 1.

Landscapes

  • Coating Apparatus (AREA)
EP20090151000 2008-01-22 2009-01-21 Unité d'application de rideau Not-in-force EP2083119B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008011597A JP2009172471A (ja) 2008-01-22 2008-01-22 カーテンコータのエッジガイド

Publications (2)

Publication Number Publication Date
EP2083119A1 true EP2083119A1 (fr) 2009-07-29
EP2083119B1 EP2083119B1 (fr) 2012-07-25

Family

ID=40613121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090151000 Not-in-force EP2083119B1 (fr) 2008-01-22 2009-01-21 Unité d'application de rideau

Country Status (2)

Country Link
EP (1) EP2083119B1 (fr)
JP (1) JP2009172471A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102497936A (zh) * 2009-08-31 2012-06-13 威斯专利股份有限公司 幕帘涂布机的边缘引导件

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0907103A1 (fr) * 1997-10-03 1999-04-07 Troller Schweizer Engineering AG Procédé et dispositif pour le revêtement par rideau d'un support en mouvement
DE10232949A1 (de) 2002-07-19 2004-01-29 Voith Paper Patent Gmbh Vorhang-Auftragsvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681666U (ja) * 1993-04-26 1994-11-22 株式会社リコー 塗工装置
JP3630749B2 (ja) * 1995-01-19 2005-03-23 株式会社リコー 塗工装置
JPH11244760A (ja) * 1998-02-26 1999-09-14 Dainippon Screen Mfg Co Ltd 基板処理装置
JP2000126663A (ja) * 1998-10-27 2000-05-09 Mitsubishi Paper Mills Ltd カーテン塗布装置及び塗布方法
JP4309275B2 (ja) * 2001-12-13 2009-08-05 ダウ グローバル テクノロジーズ インコーポレイティド フローコーティング装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0907103A1 (fr) * 1997-10-03 1999-04-07 Troller Schweizer Engineering AG Procédé et dispositif pour le revêtement par rideau d'un support en mouvement
JPH11188299A (ja) 1997-10-03 1999-07-13 Troller Schweizer Eng Ag 移動支持体をカーテンコーティングする方法および装置
DE10232949A1 (de) 2002-07-19 2004-01-29 Voith Paper Patent Gmbh Vorhang-Auftragsvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102497936A (zh) * 2009-08-31 2012-06-13 威斯专利股份有限公司 幕帘涂布机的边缘引导件

Also Published As

Publication number Publication date
EP2083119B1 (fr) 2012-07-25
JP2009172471A (ja) 2009-08-06

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