EP0205654A1 - 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 PDF

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Publication number
EP0205654A1
EP0205654A1 EP85112348A EP85112348A EP0205654A1 EP 0205654 A1 EP0205654 A1 EP 0205654A1 EP 85112348 A EP85112348 A EP 85112348A EP 85112348 A EP85112348 A EP 85112348A EP 0205654 A1 EP0205654 A1 EP 0205654A1
Authority
EP
European Patent Office
Prior art keywords
liquid
overflow weir
storage space
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.)
Granted
Application number
EP85112348A
Other languages
German (de)
English (en)
Other versions
EP0205654B2 (fr
EP0205654B1 (fr
Inventor
Gerold Fleissner
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.)
Vepa AG
Original Assignee
Vepa AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6273866&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0205654(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vepa AG filed Critical Vepa AG
Publication of EP0205654A1 publication Critical patent/EP0205654A1/fr
Application granted granted Critical
Publication of EP0205654B1 publication Critical patent/EP0205654B1/fr
Publication of EP0205654B2 publication Critical patent/EP0205654B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 type is known from DE-GM 74 03 152.
  • 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 wetted by the liquid, 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 l / 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 aid of the device according to DE-OS 31 27 469, according to which an order bar is assigned to the web over the working width, which is provided with chambers open to the web, each of which has a hose connection with a pressure standing 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 capacity of the liquid storage space is less than 5 l / m, preferably less than 2.5 l / m, even with an application rate of more than 30 1 / min.
  • the basic idea is, first of all, that the volume of the liquid storage space is to be made considerably smaller than in the prior art.
  • the liquid storage space upstream of the overflow weir opens conically widening towards the overflow weir.
  • the liquid storage space with a dam wall adjacent to the overflow weir is provided, which is directed obliquely to the horizontal to the overflow weir.
  • this baffle wall 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.
  • the amount of liquid flowing in at high speed of the device slows down from the narrow liquid inlet gap to the level at the overflow weir. It has been found that, despite a small volume in the liquid storage space, the production of the desired uniform liquid film can be influenced by a variety of measures. For example, it is advantageous if the liquid inlet gap extends over a greater length of, for example, 25 mm while the cross section remains the same.
  • Displacement bodies for example displacement bodies which flare conically towards the overflow weir, can also be arranged in the liquid inlet gap. Such displacement bodies can also be in front of or behind the liquid inlet gap be arranged. For example, a threaded rod or the like should be mentioned here, which is arranged in the region of the liquid inlet gap on the side of the storage space.
  • 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 medium flows into this liquid distribution space via bores, of which only e.g. two are distributed over the meter of the working width, with high inflow speed. It is expedient to influence the distribution of the liquid over the working width from the liquid distribution space to the liquid inlet gap by means of an 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, the wall of which is assigned to the baffle wall 2 is referred to as the diffuser wall 8.
  • the body 7 extends, for example, over a meter working width and is provided with two inflow hoses 9, 10 over this working width, via which the required amount of liquid flows to the applicator.
  • 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.
  • the liquid branching device 11 is preceded by 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 in two partial flows by the branching device 11 flows e.g. 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. While only two of the semicircular openings 18 are provided over the working width of 1 m, the liquid distribution space 19 extends uniformly over the working width.
  • 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 in front of the Liquid level 24 should be erected even steeper. 1
  • 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 wall 25 should expediently be arranged in the liquid distribution space 19 and along the Working width in the rear end of the liquid distribution space 19 has a number of flow openings 26, which limits the liquid flow cross section from the liquid distribution space 19 to these flow openings 26 to about 1/5 to 1/10. 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 extending 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 by, for example, in the region of the end of the liquid inlet gap 21 a threaded rod 29 is placed in the storage space 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coating Apparatus (AREA)
  • Treatment Of Fiber Materials (AREA)
EP85112348A 1985-06-21 1985-09-28 Installation permettant de faire couler un film liquide de grande largeur sur une matière en bande Expired - Lifetime EP0205654B2 (fr)

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 true EP0205654A1 (fr) 1986-12-30
EP0205654B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003606A5 (fr) * 1989-05-16 1992-05-05 Kuesters Eduard Maschf Dispositif d'application d'un liquide de traitement sur un produit.

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2024915A1 (fr) * 1968-11-22 1970-09-04 Vepa Ag Installation pour le revetement d'une bande, notamment d'une bande textile, avec un matiere susceptible de couler, par exemple un liquide de teinture
DE7403152U (de) * 1974-05-02 Brueckner Apparatebau Gmbh Vorrichtung zum Aufbringen eines Flüssigkeitsfilmes auf eine Warenbahn
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
FR2444509A1 (fr) * 1978-12-21 1980-07-18 Vyzk Ustav Zuslechtovaci Procede pour appliquer des liquides de traitement sur des supports plats en forme de bande, et dispositif pour l'execution de ce procede
EP0097268A1 (fr) * 1982-06-18 1984-01-04 West Point-Pepperell, Inc. Appareil pour enduire de manière uniforme une bande en déplacement au moyen de substances de traitement sous forme de liquide ou de mousse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7403152U (de) * 1974-05-02 Brueckner Apparatebau Gmbh Vorrichtung zum Aufbringen eines Flüssigkeitsfilmes auf eine Warenbahn
FR2024915A1 (fr) * 1968-11-22 1970-09-04 Vepa Ag Installation pour le revetement d'une bande, notamment d'une bande textile, avec un matiere susceptible de couler, par exemple un liquide de teinture
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
FR2444509A1 (fr) * 1978-12-21 1980-07-18 Vyzk Ustav Zuslechtovaci Procede pour appliquer des liquides de traitement sur des supports plats en forme de bande, et dispositif pour l'execution de ce procede
EP0097268A1 (fr) * 1982-06-18 1984-01-04 West Point-Pepperell, Inc. Appareil pour enduire de manière uniforme une bande en déplacement au moyen de substances de traitement sous forme de liquide ou de mousse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003606A5 (fr) * 1989-05-16 1992-05-05 Kuesters Eduard Maschf Dispositif d'application d'un liquide de traitement sur un produit.

Also Published As

Publication number Publication date
DE3522320A1 (de) 1987-01-02
EP0205654B2 (fr) 1994-04-20
EP0205654B1 (fr) 1989-03-08
US4656845A (en) 1987-04-14
DE3568600D1 (en) 1989-04-13

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