EP2093325A2 - Unité d'application de rideau - Google Patents
Unité d'application de rideau Download PDFInfo
- Publication number
- EP2093325A2 EP2093325A2 EP09152352A EP09152352A EP2093325A2 EP 2093325 A2 EP2093325 A2 EP 2093325A2 EP 09152352 A EP09152352 A EP 09152352A EP 09152352 A EP09152352 A EP 09152352A EP 2093325 A2 EP2093325 A2 EP 2093325A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- curtain
- fibrous web
- guide element
- coating
- guide
- 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.)
- Withdrawn
Links
- 238000000576 coating method Methods 0.000 claims description 29
- 239000010410 layer Substances 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 235000011837 pasties Nutrition 0.000 claims description 3
- 238000007766 curtain coating Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 1
- 239000004753 textile Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 239000012791 sliding layer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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
Definitions
- the invention relates to a curtain applicator for coating a running paper, cardboard or other fibrous web with at least one liquid to pasty application medium in the form of a single or multi-layer curtain, which essentially follows the gravity falling on the surface of the fibrous web and there a Coating layer achieved, comprising the functional units curtain applicator head, launch tray and air boundary layer removal device, which are each arranged in their operative position above the fibrous web to be coated and comprising at least one guide element, for example at least one support roller over which the fibrous web in the running direction below the applicator head or the curtain is running.
- a generic curtain commissioned work is from the WO 2006/008336 A1 known.
- the curtain in a ready position, the curtain can be collected in a starting channel, cumbersome adjustments of the commissioned work are necessary.
- the air boundary layer removal device of the curtain coater according to the invention is in any case arranged on the web feed side (that is, the side from which the fibrous web approaches the curtain). In its operative position, the air boundary layer removal device can be located only partially above the web, whereas the remaining part, for example, can enclose a feed web guide roll. This keeps harmful air boundary layers away from the next curtain.
- the starter chute as a further functional element can be arranged before or after the curtain (ie inlet side or also outlet side, wherein on the outlet side that side is to be understood from which the fibrous web continues to run from the curtain). Again, it is sufficient that the starting channel is in its operative position only with its front tip above the fibrous web. In prank mode, the starting gutter can also be completely swung away and no longer above the track. Here is the starting line then no longer in their operative position.
- FIG. 1 is a curtain applicator 1 for coating a running paper, cardboard or other fibrous web 2 with liquid to pasty application media in the form of a curtain 3 according to the prior art shown.
- the fibrous web 2 is supported by a guide element 4, ie a support roller 4.1, which partially wraps around the fibrous web 2 as it passes through the coating or production machine.
- the running direction is indicated by the arrows L.
- the known curtain applicator 1 also includes functional elements, such as a curtain applicator head 5, a starting chute 6, an air boundary layer removal device (also referred to as "Aircut”) 7 and measuring devices not shown, feed lines to the applicator head 5, etc.
- Aircut air boundary layer removal device
- the curtain applicator head 5 is located above the fibrous web 2 and is spaced therefrom.
- the application head 5 is here designed as a so-called sliding layer nozzle (slide die) or a nozzle block 8.
- This nozzle block 8 is designed to be machine-wide and, for a desired multiple application, also has a plurality of sectors 9, each with an application chamber 10, which are arranged parallel to one another. From each of these application medium chambers 10, a slot-shaped supply gap branches off with a slot-shaped outlet nozzle 11.
- the nozzle block 8 also has a downwardly inclined and curved surface, or sliding surface 12, which in a Removal edge 13 merges and points in the direction of the fibrous web 2 to be coated.
- the single-layer or multi-layer application medium curtain 3 essentially follows the force of gravity in the operating or coating position I directly on the surface of the fibrous web 2 and is deposited on one side of the web 2a (top) as a coating layer 14 from.
- FIG. 4 shows in a first embodiment, that a single support roller 4.1 is present, which also acts as a guide roller.
- This roller 4.1 is lowered via a pivot point 15 in different positions.
- pivot arms 16 are present, which are connected to the frontal bearings 17 of the roller 4.1.
- the pivoting is shown with a curved double arrow V.
- a pivoting means is used in the example, a hydraulic cylinder 18th
- FIG. 6 is in a detailed representation in turn an operating or coating position I shown, wherein the curtain 3 impinges on a supported region of the fibrous web 2. It can clearly be seen here that the air boundary layer removal device 7 and the pivot arms 16 use congruent axes of rotation or pivot points 15 for the adjustment movement.
- the starting channel 6 is in this case pivoted upwards.
Landscapes
- Coating Apparatus (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810000349 DE102008000349A1 (de) | 2008-02-19 | 2008-02-19 | Vorhang-Auftragswerk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2093325A2 true EP2093325A2 (fr) | 2009-08-26 |
| EP2093325A3 EP2093325A3 (fr) | 2010-01-20 |
Family
ID=40785432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09152352A Withdrawn EP2093325A3 (fr) | 2008-02-19 | 2009-02-09 | Unité d'application de rideau |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2093325A3 (fr) |
| JP (1) | JP3149990U (fr) |
| DE (1) | DE102008000349A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010061723A1 (de) | 2010-11-22 | 2012-05-24 | Voith Patent Gmbh | Vorrichtung zum Behandeln einer laufenden Papier-, Karton- oder anderen Faserstoffbahn |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006008336A1 (fr) | 2004-07-20 | 2006-01-26 | Metso Paper, Inc. | Unite et procede de couchage par voile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19903559B4 (de) * | 1998-01-30 | 2004-02-26 | Mitsubishi Paper Mills Limited | Verfahren und Apparatur zur Vorhangbeschichtung |
| JP4113985B2 (ja) * | 1998-07-22 | 2008-07-09 | 富士フイルム株式会社 | 塗布方法及び装置 |
| DE10012345A1 (de) * | 2000-03-14 | 2001-09-20 | Voith Paper Patent Gmbh | Vorhang-Auftragsvorrichtung |
| US7563326B2 (en) * | 2002-06-24 | 2009-07-21 | Voith Paper Patent Gmbh | Device for coating and drying both sides of a material web of paper or board |
| FI115546B (fi) * | 2002-09-20 | 2005-05-31 | Metso Paper Inc | Menetelmä verhopäällystimen ajo-olosuhteiden muuttamiseksi ja menetelmää soveltava järjestely |
| JP2005161152A (ja) * | 2003-12-01 | 2005-06-23 | Voith Paper Patent Gmbh | 塗工装置 |
| DE10358508A1 (de) * | 2003-12-13 | 2005-07-07 | Voith Paper Patent Gmbh | Auftragsvorrichtung |
-
2008
- 2008-02-19 DE DE200810000349 patent/DE102008000349A1/de not_active Withdrawn
-
2009
- 2009-02-09 EP EP09152352A patent/EP2093325A3/fr not_active Withdrawn
- 2009-02-10 JP JP2009000631U patent/JP3149990U/ja not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006008336A1 (fr) | 2004-07-20 | 2006-01-26 | Metso Paper, Inc. | Unite et procede de couchage par voile |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2093325A3 (fr) | 2010-01-20 |
| DE102008000349A1 (de) | 2009-08-20 |
| JP3149990U (ja) | 2009-04-23 |
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Legal Events
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| PUAL | Search report despatched |
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| 17P | Request for examination filed |
Effective date: 20100720 |
|
| 17Q | First examination report despatched |
Effective date: 20100817 |
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| AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20131107 |