EP0205654B1 - Installation permettant de faire couler un film liquide de grande largeur sur une matière en bande - Google Patents
Installation permettant de faire couler un film liquide de grande largeur sur une matière en bande Download PDFInfo
- Publication number
- EP0205654B1 EP0205654B1 EP85112348A EP85112348A EP0205654B1 EP 0205654 B1 EP0205654 B1 EP 0205654B1 EP 85112348 A EP85112348 A EP 85112348A EP 85112348 A EP85112348 A EP 85112348A EP 0205654 B1 EP0205654 B1 EP 0205654B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- overflow weir
- liquid
- inlet gap
- working width
- 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
Links
Images
Classifications
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/04—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by pouring or allowing to flow on to the surface of the textile material
- D06B1/06—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by pouring or allowing to flow on to the surface of the textile material flowing along an inclined surface
-
- 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 device for applying a laminar flowing liquid film, preferably of a large width, which is uniformly thin over the working width, to a continuously advanced web with a liquid-fed chamber fed by a pump, an overflow weir and a guide surface adjoining the overflow weir, from the lower edge thereof the overflowed liquid film runs off the web.
- a device of this kind is known from FR-A-2 024 915.
- the liquid storage space located upstream of the overflow weir not only has a large volume of about 200 l / m and more, but also contains a plurality of complex stowage devices or liquid sedative elements which are wetted by the liquid and which are necessary for the formation of a liquid film flowing over the guide surface in a laminar manner are.
- application quantities of 30-100 1 / min / m are common. As a result, a strong flow of liquid must flow continuously into the liquid storage room.
- a faster change of colors is possible with the help of the device according to DE-A-3 127 469, according to which an order bar is assigned to the web over the working width and is provided with chambers which are open to the web and each have a hose connection with an under Pressurized liquid storage tank are connected. Only a small volume of fluid medium is then supplied to the respective chamber via the large number of hose connections, so that a quick change of colors is now possible without loss of production.
- the disadvantage is the unavoidable streaking in the dyeing result, which is due to a non-uniform distribution of the dyeing liquid over the working width and to the large number of hose connections.
- the object of the invention is to change it in such a way that a rapid change of application liquid is possible without the associated loss of production of the web to be wetted, at the same time, however, an exact, even distribution of the application liquid over the working width is guaranteed.
- the invention provides that the liquid storage space upstream of the overflow weir opens conically widening towards the overflow weir. In this way, the calming of the liquid feed flow necessary to form a laminar liquid film is told up to the overflow weir. It is now advantageously possible to measure the capacity of the liquid storage space less than 5 l / m, preferably less than 2.511, even with an application rate of more than 30 l / min / m. Thus, the liquid storage space is thus considerably smaller in volume than z. B. in the device of FR-A-2 024 915.
- baffle wall adjacent to the overflow weir, which is directed obliquely to the horizontal to the overflow weir .
- this baffle wall is therefore provided to associate this baffle wall with a diffuser wall, which is arranged at an angle of approximately 10 ° steeper than the baffle wall to form the liquid storage space, which widens conically towards the overflow.
- the free end of the diffuser wall can be erected even steeper at the level of the liquid.
- liquid distribution space arranged upstream of the liquid inlet gap, which is formed with a constant cross section along the working width and is advantageously smaller in cross section than the liquid supply space.
- the fluid flows through holes, of which only z. B. two are distributed over the meter of the working width, with high inflow speed.
- additional throttling point which is achieved via a sieve plate, the flow openings of which should be arranged away from the liquid inlet gap.
- the liquid application device consists of an angular support 1, the 90 ° corner of which is oriented upwards.
- One leg of the angle bracket is the baffle wall 2, which is oriented obliquely upwards in the direction of the overflow weir 3.
- the overflow weir 3 is followed by the guide surface 4, through which the evenly distributed liquid film runs down and flows onto the web 5 of material running along it.
- the web 5 is carried with a pile arranged upwards over a deflection roller 6.
- a solid body 7 is arranged on the side opposite the baffle wall 2, the wall of which is associated with the baffle wall 2 is designated as the diffuser wall 8.
- the body 7 extends over z. B.
- a branching device 11 is provided, in which the uniform division into two partial flows of the incoming liquid in the direction of arrow 12 is ensured.
- Upstream of the liquid branching device 11 are two optionally switchable storage containers 13, 14, which are connected to the branching device 11 via a three-way valve 15 with flow measuring devices etc.
- the liquid application device shown in FIG. 1 can be seen in detail in FIG.
- the liquid distributed by the branching device 11 in two partial flows flows z. B. via the hose 9 into the bore 17 and from there into the semicircular opening 18, the open side of which is directly assigned to the liquid distribution space 19.
- the liquid distribution space 19 extends uniformly over the working width.
- a liquid inlet gap 21, which also extends over the working width, leads from the liquid distribution chamber 19 to the actual liquid storage chamber 20 and is connected to the liquid distribution chamber 19 via a connecting gap 22, which extends perpendicular to the inlet gap 21.
- the liquid inlet gap 21 extends over 20 to 25 mm. In general, however, it is sufficient if this gap 21 only just creates the constriction.
- the liquid storage space 20 From the end of the liquid inlet gap 21, the liquid storage space 20 begins.
- This storage space is formed by the baffle wall 2 and by the diffuser wall 8, which is arranged approximately 10 ° steeper than the baffle wall 2 to form the storage space 20 which widens conically towards the overflow weir 3.
- the end 23 of the diffuser wall 8 assigned to the overflow weir 3 can be erected even steeper in front of the liquid level 24.
- the liquid can also be made more uniform by a liquid-permeable curtain 30, which extends from the diffuser wall 8 to the baffle wall 2.
- a baffle 25 should expediently be arranged in the liquid distribution space 19, which has a row of flow openings 26 along the working width in the rear end of the liquid distribution space 19, which cross-section the liquid flow from the liquid distribution space 19 to these flow openings 26 to about 1/5 to 1 / 10 limited. From there the liquid flows back again to the connecting gap 22 and finally to the liquid inlet gap 21, whereby the liquid flows around a nose 27 which extends towards the connecting gap 22.
- Displacement bodies 28 can be arranged in the liquid inlet gap 21, which can be seen in FIG. 3.
- the displacement bodies 28 shown are triangular in shape, arranged closely next to one another and thus leave a flow space 31 which widens conically towards the overflow weir 3. A further calming of the liquid flow is possible, for example, in the region of the end of the liquid inlet gap 21.
- B. a threaded rod 29 is placed in the storage space 20.
Claims (22)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3522320 | 1985-06-21 | ||
DE19853522320 DE3522320A1 (de) | 1985-06-21 | 1985-06-21 | Vorrichtung zum aufbringen eines fluessigkeitsfilmes grosser breite auf eine warenbahn |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0205654A1 EP0205654A1 (fr) | 1986-12-30 |
EP0205654B1 true EP0205654B1 (fr) | 1989-03-08 |
EP0205654B2 EP0205654B2 (fr) | 1994-04-20 |
Family
ID=6273866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85112348A Expired - Lifetime EP0205654B2 (fr) | 1985-06-21 | 1985-09-28 | Installation permettant de faire couler un film liquide de grande largeur sur une matière en bande |
Country Status (3)
Country | Link |
---|---|
US (1) | US4656845A (fr) |
EP (1) | EP0205654B2 (fr) |
DE (2) | DE3522320A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915843C1 (fr) * | 1989-05-16 | 1990-12-06 | Eduard Kuesters Maschinenfabrik Gmbh & Co Kg, 4150 Krefeld, De | |
DE4014445A1 (de) * | 1990-05-05 | 1991-11-07 | Vepa Ag | Verfahren zum laborfaerben von z. b. teppichmustern und vorrichtung zur durchfuehrung des verfahrens |
DE4026198A1 (de) * | 1990-08-18 | 1992-02-27 | Vepa Ag | Vorrichtung zum aufbringen eines fluessigkeitsfilmes auf eine warenbahn |
DE4038359C3 (de) * | 1990-12-01 | 2003-05-22 | Fleissner Maschf Gmbh Co | Behälter zum gleichmäßigen Verteilen von Fluiden |
DE19525458A1 (de) * | 1995-07-14 | 1997-01-16 | Fleissner Maschf Gmbh Co | Vorrichtung zum Aufbringen eines über die Arbeitsbreite gleichmäßig dünnen Flüssigkeitsfilmes auf eine Warenbahn |
US5725665A (en) * | 1996-05-01 | 1998-03-10 | Minnesota Mining And Manufacturing Company | Coater enclosure and coating assembly including coater enclosure |
DE19651576A1 (de) * | 1996-12-12 | 1998-06-18 | Fleissner Maschf Gmbh Co | Vorrichtung zum Aufbringen eines Flüssigkeitsfilmes auf eine kontinuierlich vorbewegte Warenbahn, Verfahren zur Herstellung eines Farbmusters auf einer Warenbahn und Muster hergestellt nach diesem Verfahren |
US5843531A (en) * | 1997-12-10 | 1998-12-01 | Owens Corning Fiberglas Technolgy, Inc. | Curtain coater for fluid binder application |
CN108855657B (zh) | 2017-05-12 | 2021-08-13 | 诺信公司 | 喷嘴和包括它的涂胶系统 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7403152U (de) * | 1974-05-02 | Brueckner Apparatebau Gmbh | Vorrichtung zum Aufbringen eines Flüssigkeitsfilmes auf eine Warenbahn | |
GB1281572A (en) * | 1968-11-22 | 1972-07-12 | Vepa Ag | Device and method for treating a material length |
DE2548890A1 (de) * | 1975-10-31 | 1977-05-12 | Brueckner Apparatebau Gmbh | Vorrichtung zum aufbringen eines duennen fluessigkeitsfilmes auf eine warenbahn |
DE2722330A1 (de) * | 1977-05-17 | 1978-11-30 | Brueckner Apparatebau Gmbh | Auftragswerk zum aufbringen eines fluessigkeitsfilmes auf eine warenbahn |
DE2752982A1 (de) * | 1977-11-28 | 1979-05-31 | Vepa Ag | Vorrichtung zum kontinuierlichen gleichmaessigen auftragen von fluessigen behandlungsmitteln |
CS215171B1 (en) * | 1978-12-21 | 1982-07-30 | Jan Cerveny | Method of coating the operation liquid on the band material particularly textile and device for executing the same method |
DE3019460A1 (de) * | 1980-05-21 | 1981-11-26 | Agfa-Gevaert Ag, 5090 Leverkusen | Vorrichtung zum begiessen von bewegten baendern und verfahren zur erstellung der vorrichtung |
US4398665A (en) * | 1982-06-18 | 1983-08-16 | West Point Pepperell, Inc. | Apparatus for uniformly applying either liquid or foam compositions to a moving web |
US4427722A (en) * | 1982-06-30 | 1984-01-24 | Sandy Hill Corporation | Apparatus for applying a controlled layer of a saturant or a coating via a free-falling vertical curtain |
US4500039A (en) * | 1982-10-20 | 1985-02-19 | West Point Pepperell, Inc. | Apparatus for uniformly applying either liquid or foam compositions to a moving web |
-
1985
- 1985-06-21 DE DE19853522320 patent/DE3522320A1/de not_active Withdrawn
- 1985-09-26 US US06/780,691 patent/US4656845A/en not_active Expired - Fee Related
- 1985-09-28 DE DE8585112348T patent/DE3568600D1/de not_active Expired
- 1985-09-28 EP EP85112348A patent/EP0205654B2/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4656845A (en) | 1987-04-14 |
DE3568600D1 (en) | 1989-04-13 |
EP0205654A1 (fr) | 1986-12-30 |
DE3522320A1 (de) | 1987-01-02 |
EP0205654B2 (fr) | 1994-04-20 |
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