EP1861206B1 - Vorhang-auftragswerk - Google Patents

Vorhang-auftragswerk Download PDF

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Publication number
EP1861206B1
EP1861206B1 EP06707754A EP06707754A EP1861206B1 EP 1861206 B1 EP1861206 B1 EP 1861206B1 EP 06707754 A EP06707754 A EP 06707754A EP 06707754 A EP06707754 A EP 06707754A EP 1861206 B1 EP1861206 B1 EP 1861206B1
Authority
EP
European Patent Office
Prior art keywords
medium
curtain
web
coating
supply device
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.)
Not-in-force
Application number
EP06707754A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1861206A1 (de
Inventor
Hirofumi Morita
Akio Hirano
Hiroyuki Kohno
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 EP1861206A1 publication Critical patent/EP1861206A1/de
Application granted granted Critical
Publication of EP1861206B1 publication Critical patent/EP1861206B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/02—Bead coater
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/04—Curtain coater

Definitions

  • the invention relates to a curtain coater for applying two coating medium layers, for example paint, on top of a moving web, comprising a located above the web to be coated medium feeder with two flow channels for each coating medium, wherein the Mediums- supply device in is able to deliver a curtain consisting of these coating media to the moving web.
  • two coating medium layers for example paint
  • Such a curtain applicator 100 is shown in schematic cross section in FIG FIG. 4 shown. It shows an upper curtain head 101 which emits a color ta on the web w running in the direction of the arrow to form a color curtain.
  • Such a curtain applicator for dispensing a single coating layer is in the Japanese Utility Model Application JP 4131700 U1 disclosed.
  • FIG. 5 Another from the JP 2005161153-A Known curtain applicator is in schematic cross section of FIG. 5 shown.
  • Two types of coating media, or colors tb, tc pass from two upper curtain heads 201, 202 in the form of single-layer curtains cb, cc onto a path w running in the direction of the arrow w.
  • the single curtains overlap on the track.
  • the second layer tc reaches the still wet, undried first layer.
  • the amount of colors tb, tc discharged from the curtain heads 201, 202 is small, for example less than 4 to 6 l / min per web width m, the color curtains cb, cc are not very strong and can not be used to form a normal curtain , Furthermore, an effect on the air can cause an impairment of the curtains cb, cc, so that a normal coating is prevented.
  • FIG. 6b Another commissioned work for the two-layer order is in schematic cross section in Figure 6a and Figure 6b shown.
  • FIG. 6b it is a view along the direction of the arrow A of FIG. 6a .
  • the two curtain heads 301, 302 form a two-layer color curtain consisting of the layers cd, ce, which passes on the running in the direction of the arrow w.
  • FIG. 6b is shown when using an in FIG. 6a shown curtain applicator 300, the curtain width cs greater than the web width ws. It is disadvantageous, however, that the medium of the two colors td, te caught by the collecting tray cp1 is mixed (see FIG. 6 a) , For this reason, when colors with different properties are to be applied, the reuse of the mixed media td, te is impossible. In addition, there is a loss of production.
  • an apparatus and method for applying superposed layers to a web is known.
  • a curtain applicator is also provided.
  • the commissioned unit has a medium supply device located above the web to be coated, with two flow channels for one coating medium each.
  • the flow channels are arranged in such a way that a two-layered curtain composed of two types of medium is created and to which it moves below Railway is delivered.
  • the FIG. 3 the US patent corresponds essentially to the "prior art" marked above FIG. 6a with the same disadvantages.
  • a layer is narrower than the width of the web.
  • the other layer of the two-layered curtain is wider than the web.
  • the curtain edge part that is, the part of the wider curtain layer
  • dispensed beyond the edge of the web can be collected.
  • the disadvantage is that an edge guide of the narrower curtain and thus a clean applied line edge on the web is not possible.
  • the object of the present invention is therefore to provide a curtain applicator for a double-layer application to a web surface, which produces a stable double-layered curtain and in the excess coating medium separated from the curtain edge can be collected and recovered and with the beyond a uniform coating on the web is possible.
  • the particular advantage of this invention is that the excess, not used for the coating coating medium parts per layer and without mixing, collected separately and can also be recovered.
  • the recovered color can be reused and the loss of color during the application process can be reduced as much as possible.
  • a very advantageous solution is that plate-shaped guide means are provided for stabilizing the side edges of the double-layered curtain. This allows the curtain to stabilize and thereby enables a uniform coating.
  • the plate-shaped guide means in the width direction of the medium supply device or the curtain are adjustable. This also allows you to vary the width of the curtain.
  • the plate-like guide means may for example be made of a film of polypropylene and have a thickness of 50 to 100 microns. Their surface, i. That surface which comes into contact with the curtain edges is made smooth or with a low coefficient of friction.
  • the flow channels of the medium supply device - with respect to the size of the supply device - converge at an angle ⁇ of 15 to 30 ° to each other.
  • the outlets of the flow channels then meet in the region of the tip part of the middle lip of the medium supply device and thus create a juxtaposed, so double-layered curtain.
  • the design of the Mediums- supply device can thereby compact and yet fail in a relatively small size.
  • Both the medium separating plate according to the invention and the plate-like guiding means are present in each case as a pair.
  • the components separating plate and guide means are arranged parallel to each other, are advantageously at each edge of the curtain and extend parallel to the direction of movement of the moving web.
  • the medium separating plate can advantageously be moved in the web width direction, adapted to the respective curtain width. As a result, the excess medium can also be recovered regardless of the size of the web width dimension.
  • the plate-like guide means can be moved independently of the size of the web width dimensions.
  • FIG. 1 is a schematic front view of a curtain applicator 10 of an embodiment to which the present invention is applied
  • FIG. 2 a is a cross section along the line BB of FIG. 1
  • FIG. 2b is a cross section along the line CC of FIG. 1 ,
  • the curtain applicator 10 outputs by means of a medium feeder N a color ta of a first curtain head 11 and a color tb of a second curtain head 12 from and then, with the formation of two-layer color curtains ca, cb (see FIG. 2 a) two layers of Colors ta, tb are applied to an area of the web w running in the direction of the arrow.
  • the curtain applicator 10 produces a stable color curtain area in its central area by having it, as in FIG. 1 represented, the two-layer color curtains ca, cb in widths that are larger than the web width ws.
  • angle ⁇ is set between 15 and 30 °.
  • the angle ⁇ is preferably in this prescribed range of values, because the overall dimensions of the medium feed device N would be too large if the angle were larger.
  • the excess colors ta1, tb1 not used for coating the web surface are separately separated and collected by special collecting trays cp1, cp2.
  • the recovered colors ta1, tb1 are returned to supply containers (not shown in the drawings) for each of the colors ta, tb. They can be recirculated and returned to the first curtain head 11 and the second curtain head 12, respectively.
  • the guiding means gp, gp stabilize the color curtains ca, cb and divide them into colors ta, tb, which are used for coating, and individually separate excess colors ta1, tb1, which are not used for coating.
  • the width of the color curtains ca, cb can be optimally adjusted.
  • the two-layered curtain ca, cp is used directly to coat the surface of the web w over its entire width ws.
  • the plate-like guide means gp, gp are made of a flexible sheet or the like. In order to prevent resistance to the liquid flow of the curtains, they are configured with a smooth surface and a low coefficient of friction.
  • a polypropylene film with a thickness of 50 to 100 microns is attached to a thin brass or aluminum plate.
  • the curtain with its two layers ca, cb can be particularly easily aligned and stabilized.
  • FIG. 1 It is shown that there is a gap with the dimension d1 of 3 to 5 mm in a region between the web w and the plate-like guide means gp.
  • the coating medium ta2, tb2 this area, which is not used for the coating is collected with parallel collecting trays cp3.
  • the guide means or guide plates gp due to their configuration of a thin Metal plate and a propylene foil can be bent and plastically deformed, which is why an optimal adaptation to the curtain takes place.
  • FIG. 3 a is an enlarged view along the middle lip N1 and medium partition plate pb shown in FIG FIG. 2 b.
  • FIG. 2b and FIG. 3 a shows a configuration in which the excess media parts ta1, tb1 which are not used for the coating can be collected individually or separately from each other.
  • a tip portion N11 of a center lip N1 disposed between the flow channels 11a, 12a of a two-layered medium feeder N is provided to be 0.5 to 10 mm (see dimension d of FIG. 3 a) from the tip portion N21 of the two outer side lips N2 down to the web w projects.
  • the dimension d at which the tip portion N11 of the middle lip N1 projects downward from the tip portions N21, N21 of the two side lips N2, N2 toward the web side is not limited to this value and may exceed it by 10 mm ,
  • a medium partition plate pb of a curved projecting shape abuts the tip part N11 of the middle lip N1, thus forming two separate regions, so that the two discharged kinds of the colors ta, tb are spatially separated from each other so that the two media ta , tb can be collected without mixing and can also be recycled.
  • each of the excess colors ta1, tb1 flows without mixing along the medium partition plate pb and falls down into storage cases pc1, pc2.
  • an elastic material such as a rubber sheet or a resin material is attached. It should be noted that even a configuration in which no elastic material pb1 is used and instead the medium partition plate pb itself is elastic can be used.
  • the present invention exemplifies that the medium partitioning plate pb and the storage cases pc1, pc2 are made by using a bent stainless steel plate as shown in FIG. 3 b, are integrally formed, moreover, the medium partition plate pb2 and the storage containers pc11, pc21 may be formed separately. As long as the medium partition plate is configured to protrude and abut the tip part N11 of the middle lip N1 to separate the excess colors ta1, tb1, the medium partition plate and the storage cases and the like may be arbitrarily formed.
  • the configuration may include a first moving device for moving the above-described medium separating plate pb and the storage cases pc1, pc2, etc. in the width direction and a second moving device for moving the guide plates gp, gp in the width direction.
  • the edge part of the color curtains ca, cb Due to the orientation of the edge part of the color curtains ca, cb through the guide plates gp, gp, it is also possible to stabilize the edge parts of the color curtains ca, cb.
  • the optimum width of the color curtain ca, cb can be adjusted with respect to the width of the web w, so that a uniform application is achieved on the web surface.
  • the curtain applicator described is characterized in that it produces a stable, two-layer coating with little loss of color.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP06707754A 2005-03-11 2006-01-19 Vorhang-auftragswerk Not-in-force EP1861206B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005069351A JP4683968B2 (ja) 2005-03-11 2005-03-11 カーテン式コータ
PCT/EP2006/050304 WO2006094854A1 (de) 2005-03-11 2006-01-19 Vorhang-auftragswerk

Publications (2)

Publication Number Publication Date
EP1861206A1 EP1861206A1 (de) 2007-12-05
EP1861206B1 true EP1861206B1 (de) 2009-10-28

Family

ID=35911053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06707754A Not-in-force EP1861206B1 (de) 2005-03-11 2006-01-19 Vorhang-auftragswerk

Country Status (7)

Country Link
US (1) US7556693B2 (zh)
EP (1) EP1861206B1 (zh)
JP (1) JP4683968B2 (zh)
CN (1) CN101237943B (zh)
AT (1) ATE446811T1 (zh)
DE (1) DE502006005239D1 (zh)
WO (1) WO2006094854A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006247559A (ja) * 2005-03-11 2006-09-21 Voith Paper Patent Gmbh カーテン式コータ

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080178799A1 (en) * 2007-01-30 2008-07-31 Hiroyuki Kohno Two-layer curtain coater system
US8315884B2 (en) * 2009-01-12 2012-11-20 Microsoft Corporation Pre-selection display of alerts in an order entry system
JP2011050817A (ja) * 2009-08-31 2011-03-17 Voith Patent Gmbh カーテン塗工装置およびカーテン塗工方法
JP5938980B2 (ja) * 2011-03-31 2016-06-22 株式会社リコー カーテン塗布方法及びカーテン塗布装置
CN110394283A (zh) * 2019-07-31 2019-11-01 江苏塔菲尔新能源科技股份有限公司 锂电池涂布回收系统及其浆料分离回收装置

Family Cites Families (18)

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US3303816A (en) * 1963-06-03 1967-02-14 Boise Cascade Corp Apparatus for curtain coating
GB1429260A (en) * 1973-10-12 1976-03-24 Ciba Geigy Ag Coating apparatus
JPS54124039A (en) * 1978-03-01 1979-09-26 Agfa Gevaert Nv Method and apparatus for providing multii layers on web by curtain coating
EP0003860B1 (en) * 1978-03-01 1982-03-24 Agfa-Gevaert N.V. Method for applying a plurality of superposed photographic layers to a web by curtain coating
JPS59176676U (ja) * 1983-05-16 1984-11-26 富士写真フイルム株式会社 塗布装置
JPS6323A (ja) 1986-06-11 1988-01-05 株式会社イシダ 棒状商品のテ−プ巻付け方法
JP2782531B2 (ja) * 1989-06-19 1998-08-06 富士写真フイルム株式会社 カーテン塗布の塗布巾変更装置
US5017408A (en) * 1990-08-08 1991-05-21 Eastman Kodak Company Curtain coating start/finish method and apparatus
JPH04131700A (ja) 1990-09-25 1992-05-06 Japan Steel Works Ltd:The 弾薬の移送機構
US5531889A (en) * 1994-03-08 1996-07-02 Atotech Usa, Inc. Method and apparatus for removing resist particles from stripping solutions for printed wireboards
WO1996008319A2 (en) * 1994-09-16 1996-03-21 Avery Dennison Corporation Method of manufacturing a multilayer psa by slot coating and die
JP3403103B2 (ja) * 1998-12-21 2003-05-06 三洋電機株式会社 固体電解コンデンサ
DE10139514A1 (de) 2001-08-10 2003-02-20 Bosch Gmbh Robert Transmissionsdetektor für einen Fensterkörper, insbesondere die Windschutzscheibe eines Kraftfahrzeuges, sowie Reinigungsvorrichtung für einen Sichtbereich eines Fensterkörpers
DE10320146A1 (de) * 2003-05-06 2004-11-25 Voith Paper Patent Gmbh Mehrschicht-Auftragsvorrichtung zum Auftragen von Auftragsmedium im Wege wenigstens eines mehrschichtigen Vorhangs oder Schleiers
JP2005161153A (ja) 2003-12-01 2005-06-23 Voith Paper Patent Gmbh ダブル塗工装置
KR100610462B1 (ko) * 2004-02-20 2006-08-08 엔이씨 도낀 가부시끼가이샤 고체 전해 커패시터, 전송선로장치, 그 제조방법 및 그것을이용하는 복합 전자부품
DE102004062119A1 (de) * 2004-12-23 2006-07-13 Voith Paper Patent Gmbh Verfahren zum direkten Aufbringen einer Mehrfachschicht auf eine laufende Papier-, Karton- oder andere Faserstoffbahn
JP4683968B2 (ja) * 2005-03-11 2011-05-18 ボイス ペ−パ− パテント ゲ−エムベ−ハ− カーテン式コータ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006247559A (ja) * 2005-03-11 2006-09-21 Voith Paper Patent Gmbh カーテン式コータ
JP4683968B2 (ja) * 2005-03-11 2011-05-18 ボイス ペ−パ− パテント ゲ−エムベ−ハ− カーテン式コータ

Also Published As

Publication number Publication date
US7556693B2 (en) 2009-07-07
EP1861206A1 (de) 2007-12-05
CN101237943A (zh) 2008-08-06
DE502006005239D1 (de) 2009-12-10
JP2006247559A (ja) 2006-09-21
WO2006094854A1 (de) 2006-09-14
CN101237943B (zh) 2010-09-29
US20080006203A1 (en) 2008-01-10
JP4683968B2 (ja) 2011-05-18
ATE446811T1 (de) 2009-11-15

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