DE2053194A1 - Process for applying magnetizable, binder-containing layers to a carrier film - Google Patents
Process for applying magnetizable, binder-containing layers to a carrier filmInfo
- Publication number
- DE2053194A1 DE2053194A1 DE19702053194 DE2053194A DE2053194A1 DE 2053194 A1 DE2053194 A1 DE 2053194A1 DE 19702053194 DE19702053194 DE 19702053194 DE 2053194 A DE2053194 A DE 2053194A DE 2053194 A1 DE2053194 A1 DE 2053194A1
- Authority
- DE
- Germany
- Prior art keywords
- carrier film
- binder
- magnetizable
- containing layers
- edge
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/848—Coating a support with a magnetic layer by extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
- B05D1/265—Extrusion coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/20—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by magnetic fields
- B05D3/203—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by magnetic fields pre-treatment by magnetic fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/9145—Endless cooling belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Coating Apparatus (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
AG 726 AGFA-GEVAERT AKTIEKGESELLSCHAFT, Leverkusen 7. 10. 70AG 726 AGFA-GEVAERT AKTIEKGESELLSCHAFT, Leverkusen 7. 10. 70
Verfahren zum Auftragen magnetisierbarer, bindemittelhaltiger Schichten auf eine Trägerfolie ; ; _ Process for applying magnetizable, binder-containing layers to a carrier film ; ; _
Zusatz zu Patent ......... (Patentanmeldung P I0907 212.9)Addendum to patent ......... (patent application PI 0 907 212.9)
Die Erfindung betrifft ein Verfahren zum Auftragen magnetisierbarer, bindemittelhaltiger Schichten auf eine Trägerfolie mit einem Extrudergießer aus nichtferromagnetischem Werkstoff, bei dem der ExtruderÖffnung eine magnetisierbare Kante gegenübersteht, über die die Folie gleitet und in Feldrichtung bei einer Feldstärke von 100 bis 500 Oe abläuft, wobei die Feldstärke an der Kante über 700 Oe beträgt und einen Gradienten von mehr als 500 Oe/cm aufweist, nach Patent ,«....,*.. (Patentanmeldung' P 1.907 212.9).The invention relates to a method for applying magnetizable, binder-containing layers on a carrier film with an extruder caster made of non-ferromagnetic material opposite the extruder opening is a magnetizable edge, over which the film slides and runs in the direction of the field at a field strength of 100 to 500 Oe, the field strength on the edge is over 700 Oe and has a gradient of more than 500 Oe / cm, according to patent, "...., * .. (patent application" P 1.907 212.9).
Dieses Verfahren bietet bereits gegenüber bisher bekannten Verfahren eine Reihe bedeutender, für die Qualität von Magnettonbändern und deren wirtschaftliche Fertigung entscheidender Vorteile. So kann der Abstand zwischen der Austrittsöffnung des Düsenspalts einer Breitschlitzdüse und der Trägerfolie sehr groß, nämlich >1 mm gehalten sein, wodurch beispielsweise bei einer kontinuierlichen Beschichtung ein Durchfahren von Klebestellen ohne jegliche Schwierigkeit möglich ist. Das Verfahren erlaubt die Verwendung eines relativ dicken Düsenspalts und eine Streckung des aus dem Düsenspalt austretenden Flüssigkeitsfilms um mehr als das 3Ofache, so daß die Auswirkung von Schwankungen in der Weite des Düsenspalts auf die Schichtdicke weitgehend vermieden ist, Es können Gießgeschwindigkeiten von etwa 100 bis 200 m/min gefahren werden, ohne daß der schichtbildende Flüssigkeitsmeniskus labil bzw. störanfällig wird.This method already offers the previously known method a number of significant advantages that are decisive for the quality of magnetic tapes and their economical production. Thus, the distance between the outlet opening of the nozzle gap of a slot nozzle and the carrier film can be very large large, namely> 1 mm, which means that, for example, in the case of continuous coating, gluing points are passed through is possible without any difficulty. The method allows the use of a relatively thick nozzle gap and an elongation of the liquid film emerging from the nozzle gap by more than 30 times, so that the effect of Fluctuations in the width of the nozzle gap on the layer thickness is largely avoided about 100 to 200 m / min can be driven without the layer-forming Fluid meniscus becomes unstable or susceptible to failure.
—2——2—
20981 97 10S320981 97 10S3
J - 2' - AG 726J - 2 '- AG 726
AGFA-GEVAERT AG, Leverkusen .. 7. 10. 70AGFA-GEVAERT AG, Leverkusen .. 7. 10. 70
Bei der Anwendung des zuvor behandelten Verfahrens hat sich neben den zahlreichen Vorteilen gezeigt, daß bei einer konstanten Schichtdicke in Laufrichtung der Bahn Schwankungen der Schichtdicke quer zur Laufrichtung auftreten können, die auf eine bei SOfacher Vergrösserung deutlich erkennbare Längsstruktur zurückzuführen sind. Diese Dickenschwan^· kungen sind nachteilig.When applying the previously discussed procedure has in addition to the numerous advantages shown that at a constant Layer thickness in the running direction of the web Fluctuations in the layer thickness across the running direction can occur, which can be clearly seen at 50x magnification Longitudinal structure are attributable. This Thick Swan ^ · effects are disadvantageous.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs beschriebenen Art bereitzustellen, bei dem der zuvor herausgestellte Nachteil vermieden ist, das also eine gleichmäßige- Beschichtung der Trägerfolie sowohl in Laufrichtung wie auch quer dazu ermöglicht.The invention is based on the object of a method of the type described at the outset to be provided, in which the disadvantage pointed out above is avoided, that is to say enables a uniform coating of the carrier film both in the running direction and across it.
Bei einem Verfahren zum Auftragen magnetisierbarer, bindemittelhaltiger Schichten auf eine Trägerfolie mit einem Extrudergießer aus nicht ferromagnetischem Werkstoff, bei dem der Extruderöffnung eine magnetisierbare Kante gegenübersteht, über die die Folie gleitet und in Feldrichtung bei einer Feldstärke von 100 bis 500 Oe abläuft, wobei die Feldstärke an der Kante über 700 Oe beträgt und einen Gradienten von mehr als 500 Oe/cm aufweist, nach Patent ..... . . .. (Patentanmeldung P 1.907.212.9) ist die Auf-In a method for applying magnetizable, binder-containing layers to a carrier film with an extruder caster made of non-ferromagnetic material, in which the extruder opening is opposite a magnetizable edge over which the film slides and runs in the direction of the field at a field strength of 100 to 500 Oe, the field strength at the edge is over 700 Oe and has a gradient of more than 500 Oe / cm, according to patent ...... . .. (patent application P 1.907.212.9) is the
TiTi
gäbe erfinduhgsgemäß dadurch gelöst, daß die Dispersion zwischen der Zuflußzoiie und dem Düsenspalt im Kanal des Schlitzgießers mindestens um eine scharfe Kante geführt wird. Hierdurch wird eine Mischbewegüng erzeugt, die zu einer sehr weitgehenden Vergleichmäßigung der aus der Düsenöffnung austretenden Dispersion senkrecht zu deren Fließrichtung und damit einer Vergleichniäßigung der Dicke der Beschichtung auch senkrecht zu der Laufrichtung der Trägerfolie führen.would be solved according to the invention in that the dispersion between the influx zone and the nozzle gap in the channel of the Schlitzgießers is guided at least around a sharp edge. This creates a mixed movement that leads to a very extensive homogenization of the dispersion emerging from the nozzle opening perpendicular to its direction of flow and thus a comparison of the thickness of the coating also run perpendicular to the running direction of the carrier film.
209819/1053209819/1053
:.-.- Λ;-.' - 205319A:.-.- Λ; -. ' - 205319A
St- #"*- AG 726 St- # "* - AG 726
AGFA-GEVAERTAG, Leverkusen . 7. 10. 70AGFA-GEVAERTAG, Leverkusen. 7. 10. 70
In der Zeichnung ist das Wesen der Erfindung veranschaulicht. Gezeigt ist - in schematischer Darstellung - eine Einrichtung zur Ausübung des erfindungsgemäßen VerfahrensThe essence of the invention is illustrated in the drawing. What is shown - in a schematic representation - is a device for carrying out the method according to the invention
Die Einrichtung besteht aus zwei Walzen 1, einem (Permanent- oder Elektro-) Magneten 2 und einer Breitschlitzdüse 3, die mittels eines nicht weiter dargestellten Extruders mit einer Dispersion 4a, einer meist hochviskosen Magnettongießlösung, beschickt ist. Die Walzen 1 und der Magnet 2 sind so zueinander angeordnet, daß eine über die Walzen 1 laufende Trägerfolie 5 über eine der Polflächen 21 des Magneten 2 gleitet. Die Breitschlitzdüse -3 ist gegenüber dem Magneten 2 so eingestellt, daß dessen einer,, in Laufrichtung a der Trägerfolie 5 weisenden Kante 22 die an den Düsenspalt 31 anschließende Düsenöffnung 32 gegenübersteht. Die Feldstärke des Magneten 2 beträgt an der Kante 22 mehr als 700 Oe.The device consists of two rollers 1, one (permanent or electro) magnets 2 and a slot die 3, which by means of an extruder not shown with a Dispersion 4a, a mostly highly viscous magnetic clay casting solution, is charged. The rollers 1 and the magnet 2 are so to each other arranged that a carrier film 5 running over the rollers 1 slides over one of the pole faces 21 of the magnet 2. the The slot nozzle -3 is set in relation to the magnet 2 in such a way that its one, pointing in the direction of travel a of the carrier film 5 Edge 22 is the nozzle opening adjoining the nozzle gap 31 32 faces. The field strength of the magnet 2 is more than 700 Oe at the edge 22.
Bis dahin entspricht die-Wirkungsweise der in der deutschen Patentschrift-. . ...... (Patentanmeldung P 1.907 212.9). beschriebenen.Until then, the mode of action corresponds to that in German Patent specification-. . ...... (patent application P 1.907 212.9). described.
In der Breitschlitzdüse 3 ist zwischen der Zuflußzone 33 und der Düsenöffnung 32 bzw. dem Düsenspalt 31 eine Seite des Düsenkanals mit einem sägezahnartigen Profil ausgestattet ist, wodurch erweiternde und verengende Abschnitte 34, 35 entstehen.In the slot nozzle 3 is one side of the nozzle channel between the inflow zone 33 and the nozzle opening 32 or the nozzle gap 31 is equipped with a sawtooth-like profile, whereby widening and narrowing sections 34, 35 arise.
Hierdurch wird bei dem Verfahren die Dispersion ^a vor Austritt aus dem Düsenspalt 31 mehrmals um scharfe Kanten umgelenkt, so daß in der Dispersion 4a eine Mischbewegung erzeugt wird. Dies führt zu einer sehr weitgehenden Vergleichmäßigung des Schichtauftrages sowohl in Laufrichtung als auch quer dazu. As a result, in the process, the dispersion ^ a before it emerges deflected several times around sharp edges from the nozzle gap 31, so that a mixing movement is generated in the dispersion 4a will. This leads to a very extensive equalization of the layer application both in the running direction and across it.
-4--4-
209819/1053209819/1053
- 4 ~ AG 726- 4 ~ AG 726
AGFA-GEVAERT, AG.,. Leverkusen · . ,, , , .. . . 7..- 10. ^C> , Α r /AGFA-GEVAERT, AG.,. Leverkusen · . ,,,, ... . 7 ..- 10. ^ C>, Α r /
Die Ausführung der sich, erweiternden und verengenden Ab- .
schnitte ist nicht an das in der Zeichnung gezeigte Bei-,
spiel gebunden„ Wesentlich ist lediglich, daß die Dispersion in Fließrichtung durch einen Kanal um scharfe Kanten
umgelenkt wird. So kann der. Düsenkanal nicht nur an einer Begrenzungsfläche, sondern an beiden sägezahnartig ausgebildet
sein.The execution of the expanding, expanding and narrowing. cuts is not compatible with what is shown in the drawing,
tied to play “It is only essential that the dispersion is deflected in the direction of flow through a channel around sharp edges. So can he. The nozzle channel can be designed in a sawtooth-like manner not only on one boundary surface, but also on both.
- Patentansprüche 2098 19/1053- Claims 2098 19/1053
Claims (2)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702053194 DE2053194A1 (en) | 1969-02-13 | 1970-10-29 | Process for applying magnetizable, binder-containing layers to a carrier film |
CH1029171A CH527649A (en) | 1969-02-13 | 1971-07-13 | Process for applying magnetizable, binder-containing layers to a carrier film |
NL7114752A NL7114752A (en) | 1969-02-13 | 1971-10-26 | |
GB4989671A GB1326979A (en) | 1969-02-13 | 1971-10-27 | Method of and apparatus for producing magnetic recording tapes |
BE774664A BE774664R (en) | 1969-02-13 | 1971-10-29 | METHOD OF MANUFACTURE OF MAGNETIC TAPE BY MEANS |
FR7139091A FR2111928B2 (en) | 1969-02-13 | 1971-10-29 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1907212A DE1907212B2 (en) | 1969-02-13 | 1969-02-13 | Process for applying magnetizable binder-containing layers to a carrier film with an extruder caster |
DE19702053194 DE2053194A1 (en) | 1969-02-13 | 1970-10-29 | Process for applying magnetizable, binder-containing layers to a carrier film |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2053194A1 true DE2053194A1 (en) | 1972-05-04 |
Family
ID=25756992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702053194 Pending DE2053194A1 (en) | 1969-02-13 | 1970-10-29 | Process for applying magnetizable, binder-containing layers to a carrier film |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE774664R (en) |
DE (1) | DE2053194A1 (en) |
FR (1) | FR2111928B2 (en) |
GB (1) | GB1326979A (en) |
NL (1) | NL7114752A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4226139A1 (en) * | 1992-08-07 | 1994-02-10 | Basf Magnetics Gmbh | Coating system for producing a magnetic recording tape - comprises a multi-slot extruder caster arranged to coat a moving film base with a magnetic multilayer which is exposed to a magnetic field |
DE4234608A1 (en) * | 1992-08-07 | 1994-04-21 | Basf Magnetics Gmbh | Magnetic recording material prodn. - by wet-wet co-extrusion casting on a film base with magnet behind, to give a thick upper magnetic layer and a thin lower non-magnetic layer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115921222B (en) * | 2022-09-07 | 2023-11-28 | 常州铭赛机器人科技股份有限公司 | Glue outlet control method of screw valve |
-
1970
- 1970-10-29 DE DE19702053194 patent/DE2053194A1/en active Pending
-
1971
- 1971-10-26 NL NL7114752A patent/NL7114752A/xx unknown
- 1971-10-27 GB GB4989671A patent/GB1326979A/en not_active Expired
- 1971-10-29 FR FR7139091A patent/FR2111928B2/fr not_active Expired
- 1971-10-29 BE BE774664A patent/BE774664R/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4226139A1 (en) * | 1992-08-07 | 1994-02-10 | Basf Magnetics Gmbh | Coating system for producing a magnetic recording tape - comprises a multi-slot extruder caster arranged to coat a moving film base with a magnetic multilayer which is exposed to a magnetic field |
DE4234608A1 (en) * | 1992-08-07 | 1994-04-21 | Basf Magnetics Gmbh | Magnetic recording material prodn. - by wet-wet co-extrusion casting on a film base with magnet behind, to give a thick upper magnetic layer and a thin lower non-magnetic layer |
Also Published As
Publication number | Publication date |
---|---|
BE774664R (en) | 1972-05-02 |
FR2111928A2 (en) | 1972-06-09 |
FR2111928B2 (en) | 1976-02-13 |
NL7114752A (en) | 1972-04-25 |
GB1326979A (en) | 1973-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69521532T2 (en) | METHOD FOR PRODUCING MULTILAYER COATINGS | |
DE69312172T2 (en) | Device and method for the simultaneous extrusion of thin layers | |
EP0110074B2 (en) | Multiple coating process for moving webs | |
DE69006115T2 (en) | Device for the production of transparent plastic layers, which have a colored filter band in the mass. | |
DE69224881T2 (en) | Extrusion type coating device and coating method | |
DE3434240C2 (en) | ||
DE2756133A1 (en) | DEVICE FOR APPLYING A VISCOSE LIQUID TO A SUBSTRATE | |
DE1907212B2 (en) | Process for applying magnetizable binder-containing layers to a carrier film with an extruder caster | |
DE2830882C3 (en) | Slot die for extrusion of foils made of oil-containing thermoplastics | |
DE2351369A1 (en) | COATING DEVICE | |
DE4010262A1 (en) | Slot outlet gluing nozzle - has parallel baffle passages running in flow direction after distribution chamber | |
DE2351178A1 (en) | COATING DEVICE | |
DE69404603T2 (en) | Coating process | |
DE1460317A1 (en) | Method and device for impregnating strands of fibers or threads | |
DE3014816A1 (en) | DEVICE FOR COATING RAILWAYS WITH VISCOSE CASTING SOLUTIONS | |
DE2053194A1 (en) | Process for applying magnetizable, binder-containing layers to a carrier film | |
DE1704963B1 (en) | METHOD FOR CONTINUOUS PRODUCTION OF PANELS | |
DE1295732B (en) | Device for the production of a tape-shaped magnetogram carrier | |
DE760954C (en) | Process for stretching films made from polyamides | |
DE3843574A1 (en) | Process and apparatus for producing a waterproof membrane with preferably two supporting liners | |
CH527649A (en) | Process for applying magnetizable, binder-containing layers to a carrier film | |
DE1957078B2 (en) | Extruder head | |
DE1935488A1 (en) | Process for coating tapes, foils and the like. with viscous solutions based on the air brush principle | |
DE1546383C3 (en) | Device for the continuous application of liquids in gel, sol or colloidal form, for example solutions of synthetic resins and types of rubber, onto fibrous webs made of paper or fabric | |
DE2224872A1 (en) | Apparatus for coating a moving web or belt with one or more layers of flowable material |