AT409866B - Impregnation of fleece fibres with fungicide and flame retardant agent spray in an air tunnel - Google Patents
Impregnation of fleece fibres with fungicide and flame retardant agent spray in an air tunnel Download PDFInfo
- Publication number
- AT409866B AT409866B AT0119900A AT11992000A AT409866B AT 409866 B AT409866 B AT 409866B AT 0119900 A AT0119900 A AT 0119900A AT 11992000 A AT11992000 A AT 11992000A AT 409866 B AT409866 B AT 409866B
- Authority
- AT
- Austria
- Prior art keywords
- impregnating agent
- fiber
- flow channel
- fibers
- fiber material
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4266—Natural fibres not provided for in group D04H1/425
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/645—Impregnation followed by a solidification process
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/655—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions characterised by the apparatus for applying bonding agents
-
- 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
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nonwoven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
Manufacture of a non-woven fibre fleece material, where the fibres are transported through a passage by air into which a fungicide or a flame-retardant impregnation agent is sprayed. An Independent claim is also included for an assembly with a fibre feed (1) and a fibre-drying and distribution drum (4). The fibres are supplied via a spray (12) impregnation passage (7) to an air-permeable sieve (8, 9) where the fibres are trapped and later surrendered as fleece (11). The spray jets are arranged preferably in two rows.
Description
<Desc/Clms Page number 1>
AT 409 866 B
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Faservlies, wobei die Fasern In einer Zone des Faserfluges in einem Luftstrom geführt werden, wobei die Fasern In der Zone des Faserfluges mit einem Impragniermittel beladen, vorzugsweise besprüht werden.
Ein Verfahren zur Vliesherstellung, bei dem die Fasern in einer Zone des Faserfluges in einem Luftstrom geführt werden, und der Aufbau einer zugehörigen "aerodynamischen"Vliesmaschine sind z. B. in der AT 207 674 beschrieben. Die mit Hilfe eines solchen Blasluft-Verfahrens hergestellten Faservlies aus allen Arten von Fasern, wie z B Flachs, Stroh, Jute, Holzfasern sowie üblichen Textilfasern, wie Reisswolle, Recycling-Fasern und diversen Fasermischungen, zeichnen sich durch eine ausgezeichnete Wirrlage der Fasern und dadurch aus, dass die Fasern im Vlies in allen Richtungen sehr gleichmässig und gut zusammen halten. Solche Vliese werden seit Jahren mit Erfolg als Formteile für die Autoindustrie, aber z. B. auch in der Bauindustrie verwendet.
Faservlies bedürfen häufig auch einer Ausrüstung, bei der den Fasern bestimmte Gebrauchseigenschaften verliehen werden. Insbesondere wird in zunehmendem Masse eine flammhemmende Ausrüstung gefordert. Darüber hinaus ist gerade bei Verwendung von Naturfasern wie z. B. Flachs, Stroh usw. eine fungizide Ausrüstung notwendig.
Aufgabe der Erfindung ist es, Faservlies, die nach dem eingangs genannten Blasluft-Verfah- ren hergestellt werden, in besonders effektiver Weise flammhemmend und/oder fungizid auszurüsten.
Dies wird erfindungsgemäss dadurch erreicht, dass das Imprägniermittel ein flammhemmende
EMI1.1
Das Impragniermittel bzw. Ausrüstungsmittel hat den an die gewünschte Ausrüstung gestellten Anforderungen zu entsprechen und wird dann flammhemmende und/oder fungizide Eigenschaften aufweisen. Vorzugsweise wird das Imprägniermittel in flüssiger Form In der Zone des Faserfluges auf die Fasern aufgesprüht.
Eine geeignete Vorrichtung zur Durchführung des Verfahrens besteht im wesentlichen aus einer Faserzuführungseinrichtung, einer das Fasergut auflockernden und verteilenden Trommel (Tambour), einem einen Luftstrom und das Fasermaterial führenden Strömungskanal und einem Sieb, das die Luft durchlässt und das Fasermaterial aufnimmt und als Vlies welterbefordert, wobei erfindungsgemäss vor dem oder im Strömungskanal eine Einrichtung, vorzugsweise Sprüheinrichtung, zum Aufbringen eines flammhemmende und/oder fungiziden Imprägniermittels auf das Fasermatenal angeordnet ist. Vorzugsweise befindet sich die Einrichtung zum Aufbringen des Impragniermittels auf das von der Trommel (Tambour) kommende Fasermatenal nahe der Trommel.
Die Sprühvorrichtung für das Imprägniermittel kann vorzugsweise aus mehreren über die Breite des Strömungskanals verteilten Sprühdüsen bestehen.
Die Erfindung bzw. weitere Einzelheiten derselben werden nachstehend anhand der Zeichnung durch ein Ausführungsbeispiel näher erläutert
Die Zeichnung stellt schematisch den Aufbau einer "aerodynamischen" Vliesmaschine dar, in der eine Einrichtung zur Durchführung des erfindungsgemässen Ausrüstungs-Verfahrens eingebaut ist.
Die Vliesmaschine des in der Zeichnung dargestellten Konstruktionsschemas weist eine För- dervomchtung 1 für die Zuführung des Vorvlieses auf, das aus allen Arten von Naturfasern, wie z. B. Flachs, Stroh, Jute, Holzfasern sowie üblichen Textilfasern wie Reisswolle, Recycling-Fasern und diversen Fasermischungen, sowie z. B. etwa 10 - 30 % thermischen Bindefasern zur Verfestigung des Vlieses bestehen kann. Dieses Vorvlies wird durch eine Einzugswalze 2 und über einen sogenannten Muldentisch 3 einem schnell rotierenden Tambour 4 zugeführt. Der Tambour 4 ist eine z.
B. mit einem Sägezahnbelag versehene, das Fasergut auflockernde und verteilende Trom- mel. Durch einen von einer ersten Luftzuführung 5 kommenden kräftigen Luftstrom wird das vom Tambour 4 In Einzelfasern aufgelöste Fasergut in einer Zone 6 des Faserflug durch einen Stromungskanal 7 hindurch gegen einen Siebtransporteur 8 und eine Siebwalze 9 geblasen.
Das bisher beschriebene, an sich bekannte Schema einer aerodynamischen Vliesmaschine wird nunmehr erfindungsgemäss erganzt durch eine im Bereich des Faserflug 6 nahe dem Tambour angeordnete Einrichtung zum Aufbringen eines Imprägniermittels (Ausrüstungsmittels) auf das Im Luftstrom zweckmässig (wie dargestellt) etwa senkrecht von oben nach unten fliegende Fasergut. Diese Einrichtung, vorzugsweise eine Sprüheinnchtung, besteht beim dargestellten
<Desc/Clms Page number 2>
Ausführungsbeispiel aus zwei Reihen von Sprühdüsen 12, z. B. in Form von Spritzpistolen, für das Imprägniermittel. Die Sprühdüsen 12 sind oberhalb des Strömungskanals 7 im Bereich des Anfangs der Zone 6 des Faserfiuges angeordnet.
Die Düsenachsen der zwei Reihen von Sprühdüsen 12 sind derart ausgerichtet, dass sich die gedachten Verlängerungen der Düsenachsen der einen Reihe mit den gedachten Verlängerungen der anderen Reihe von Sprühdüsen im Strömungskanal kreuzen. Um besser zu verhindern, dass die mit dem Impragniermittel beladenen Fasern sich an den Innenwänden des Strömungskanals 7 absetzen bzw. dort ankleben, kann vorzugsweise eine zweite Luftzuführung 13 zur Bildung eines Luftschleiers zwischen der Zone 6 des Faserflug und den Wänden des Strömungskanals 7 vorhanden sein.
Falls sich erweisen sollte, dass die erfindungsgemasse Ausrüstung speziell an der Oberfläche des fertigen Vlieses nicht ausreichend ist, kann über dem ablaufenden fertigen Vlies 11 eine weitere Einrichtung, vorzugsweise eine weitere Reihe von Sprühdüsen 14, zur zusätzlichen Aufbringung eines Imprägniermittels auf das fertige Vlies 11 vorgesehen sein.
Das so ausgerüstete Vlies lauft anschliessend in einen Bandtrockner, In dem es in bekannter Weise getrocknet und verfestigt wird.
Das Imprägniermittel wird vorzugsweise im flüssigen Zustand durch die Sprühdüsen 12 auf das Im Luftstrom fliegende Fasergut aufgebracht.
Falls das flammhemmende und/oder fungizide Imprägniermittel als Feststoff vorliegt, wird vorzugsweise eine Mischung mit Wasser hergestellt und auf das Fasergut aufgebracht. Die Spritzpistolen, mit denen ein solches Imprägniermittel auf die fliegenden Fasern aufgebracht wird, können z. B. mit einem (Über-) Druck von 1 bis 2 bar arbeiten.
Der Begriff "Luft" ist nicht Im einschränkenden Sinn zu verstehen, sondern umfasst alle gasförmigen Medien.
PATENTANSPRÜCHE :
1. Verfahren zur Herstellung von Faservlies, wobei die Fasern in einer Zone des Faserfluges in einem Luftstrom geführt werden, wobei die Fasern in der Zone (6) des Faserfluges mit
EMI2.1
<Desc / Clms Page number 1>
AT 409 866 B
The invention relates to a process for the production of nonwoven, the fibers being guided in an air stream in a zone of the fiber flight, the fibers being loaded with an impregnating agent in the zone of the fiber flight, preferably being sprayed.
A method for nonwoven production, in which the fibers are guided in an air flow in a zone of fiber flight, and the construction of an associated "aerodynamic" nonwoven machine are known, for. B. described in AT 207 674. The nonwoven fabric made from all types of fibers, such as flax, straw, jute, wood fibers and conventional textile fibers such as rice wool, recycled fibers and various fiber blends, is characterized by an excellent tangle of the fibers and thereby from the fact that the fibers in the fleece hold together very evenly and well in all directions. Such fleeces have been used successfully for years as molded parts for the automotive industry, but z. B. also used in the construction industry.
Nonwovens often also require equipment that gives the fibers certain usage properties. In particular, flame retardant equipment is increasingly required. In addition, especially when using natural fibers such. B. flax, straw, etc. fungicidal equipment is necessary.
The object of the invention is to provide nonwoven fabric, which are produced by the blowing air process mentioned at the outset, in a particularly effective manner flame-retardant and / or fungicidal.
This is achieved according to the invention in that the impregnating agent is a flame retardant
EMI1.1
The impregnating agent or finishing agent must meet the requirements placed on the desired equipment and will then have flame-retardant and / or fungicidal properties. The impregnating agent is preferably sprayed onto the fibers in liquid form in the zone of the fiber flight.
A suitable device for carrying out the method essentially consists of a fiber feed device, a drum loosening and distributing the fiber material, a flow channel guiding an air flow and the fiber material and a sieve which allows the air to pass through and absorbs the fiber material and is required as a nonwoven, According to the invention, a device, preferably a spray device, for applying a flame-retardant and / or fungicidal impregnating agent to the fiber material is arranged in front of or in the flow channel. The device for applying the impregnating agent to the fiber material coming from the drum (drum) is preferably located near the drum.
The spray device for the impregnating agent can preferably consist of a plurality of spray nozzles distributed over the width of the flow channel.
The invention and further details thereof are explained in more detail below with reference to the drawing using an exemplary embodiment
The drawing shows schematically the structure of an "aerodynamic" nonwoven machine, in which a device for carrying out the finishing process according to the invention is installed.
The fleece machine of the construction diagram shown in the drawing has a conveyor device 1 for feeding the preliminary fleece, which consists of all types of natural fibers, such as. B. flax, straw, jute, wood fibers and conventional textile fibers such as rice wool, recycled fibers and various fiber mixtures, and z. B. can consist of about 10 - 30% thermal binding fibers for strengthening the nonwoven. This fleece is fed through a feed roller 2 and a so-called trough table 3 to a rapidly rotating drum 4. The drum 4 is a z.
B. provided with a sawtooth coating, the fiber material loosening and distributing drum. By means of a strong air flow coming from a first air supply 5, the fiber material dissolved by the spool 4 in individual fibers is blown through a flow channel 7 against a screen conveyor 8 and a screen roller 9 in a zone 6 of the fiber flight.
The previously described, known scheme of an aerodynamic nonwoven machine is now supplemented according to the invention by a device arranged in the area of the fiber fly 6 near the drum for applying an impregnating agent (finishing agent) to the airflow which expediently (as shown) flies approximately vertically from top to bottom fiber material. This device, preferably a spray device, is shown
<Desc / Clms Page number 2>
Embodiment from two rows of spray nozzles 12, for. B. in the form of spray guns for the impregnating agent. The spray nozzles 12 are arranged above the flow channel 7 in the region of the beginning of zone 6 of the fiber joint.
The nozzle axes of the two rows of spray nozzles 12 are aligned such that the imaginary extensions of the nozzle axes of one row intersect with the imaginary extensions of the other row of spray nozzles in the flow channel. In order to better prevent the fibers loaded with the impregnating agent from settling or sticking to the inner walls of the flow channel 7, a second air supply 13 can preferably be provided to form an air curtain between the zone 6 of the fiber fly and the walls of the flow channel 7.
If it should turn out that the equipment according to the invention, especially on the surface of the finished nonwoven, is insufficient, a further device, preferably a further row of spray nozzles 14, can be provided above the finished finished nonwoven 11 for the additional application of an impregnating agent to the finished nonwoven 11 his.
The fleece thus finished then runs into a belt dryer, in which it is dried and solidified in a known manner.
The impregnating agent is preferably applied in the liquid state through the spray nozzles 12 to the fiber material flying in the air stream.
If the flame retardant and / or fungicidal impregnating agent is in the form of a solid, a mixture with water is preferably prepared and applied to the fiber material. The spray guns with which such an impregnating agent is applied to the flying fibers can, for. B. work with an (excess) pressure of 1 to 2 bar.
The term "air" is not to be understood in a restrictive sense, but encompasses all gaseous media.
PATENT CLAIMS:
1. A process for the production of nonwoven fabric, the fibers being guided in an air flow in a zone of the fiber flight, the fibers in the zone (6) of the fiber flight
EMI2.1
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0119900A AT409866B (en) | 2000-07-12 | 2000-07-12 | Impregnation of fleece fibres with fungicide and flame retardant agent spray in an air tunnel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0119900A AT409866B (en) | 2000-07-12 | 2000-07-12 | Impregnation of fleece fibres with fungicide and flame retardant agent spray in an air tunnel |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA11992000A ATA11992000A (en) | 2002-04-15 |
AT409866B true AT409866B (en) | 2002-12-27 |
Family
ID=3687022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0119900A AT409866B (en) | 2000-07-12 | 2000-07-12 | Impregnation of fleece fibres with fungicide and flame retardant agent spray in an air tunnel |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT409866B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7780816B2 (en) | 2004-10-12 | 2010-08-24 | Certainteed Corporation | Fibrous insulation with fungicide |
US8273201B2 (en) | 2004-12-21 | 2012-09-25 | Kronotic Ag | Process for the production of a wood fiber insulating material board or mat and wood fiber insulating material boards or mats produced by this process |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1760911A1 (en) * | 1967-07-25 | 1972-01-05 | Owens Corning Fiberglass Corp | Method and device for producing a fiber mat |
AU7574687A (en) * | 1986-07-18 | 1988-01-21 | Australian Cellulose Industries Pty. Limited | Insulation production |
EP0261378A2 (en) * | 1986-09-26 | 1988-03-30 | National Starch and Chemical Investment Holding Corporation | Heat resistant binders |
GB2222185A (en) * | 1988-08-18 | 1990-02-28 | John Cotton | Ignition resistant wadding |
-
2000
- 2000-07-12 AT AT0119900A patent/AT409866B/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1760911A1 (en) * | 1967-07-25 | 1972-01-05 | Owens Corning Fiberglass Corp | Method and device for producing a fiber mat |
AU7574687A (en) * | 1986-07-18 | 1988-01-21 | Australian Cellulose Industries Pty. Limited | Insulation production |
EP0261378A2 (en) * | 1986-09-26 | 1988-03-30 | National Starch and Chemical Investment Holding Corporation | Heat resistant binders |
GB2222185A (en) * | 1988-08-18 | 1990-02-28 | John Cotton | Ignition resistant wadding |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7780816B2 (en) | 2004-10-12 | 2010-08-24 | Certainteed Corporation | Fibrous insulation with fungicide |
US8273201B2 (en) | 2004-12-21 | 2012-09-25 | Kronotic Ag | Process for the production of a wood fiber insulating material board or mat and wood fiber insulating material boards or mats produced by this process |
Also Published As
Publication number | Publication date |
---|---|
ATA11992000A (en) | 2002-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69308994T2 (en) | Method and device for producing a composite yarn | |
EP1930492B1 (en) | Method and apparatus for making a spunbonded nonwoven fabric | |
DE60030120T2 (en) | METHOD FOR THE PRODUCTION OF A NONWOVEN MATERIAL, APPARATUS FOR CARRYING OUT THIS METHOD, NONWOVEN MATERIAL MANUFACTURED | |
EP1967628B2 (en) | Method and device for producing spinning fleece | |
EP1726700B1 (en) | Process and device for making a nonwoven fabric | |
AT519489B1 (en) | Method and apparatus for producing cellulose-based nonwovens which are formed directly from Lyocell spinning solution | |
DE1904859A1 (en) | Method and apparatus for spraying an air stream containing suspended fibers with a liquid | |
DE3135247A1 (en) | AIR CONDITIONING IN THE MANUFACTURE OF NEEDLE DRUM MATS | |
DE2840827A1 (en) | METHOD AND DEVICE FOR MANUFACTURING A NON-WOVEN FLEECE FROM SYNTHETIC FILAMENTS | |
DE1660791A1 (en) | Method and device for consolidating needle felt, felt and similar products | |
DE1157513B (en) | Process for the manufacture of a mat from endless threads or staple fibers | |
DE4312309A1 (en) | Process and devices for producing a sheet-like spun-bonded web product | |
EP2009163B1 (en) | Method for manufacturing non woven material | |
DE10247413B4 (en) | Plant for gluing fibers for the production of fiberboard, in particular MDF boards or the like wood-based panels | |
CH634779A5 (en) | FIBER MAT FROM TWO LIGNOCELLULOSE FIBER LAYERS AND AN INTERMEDIATE BACKING LAYER AND METHOD FOR THE PRODUCTION THEREOF. | |
DE69016614T2 (en) | Device and method for producing a glass fiber mat. | |
WO2007017007A1 (en) | Method for producing a flat product made of fibrous material, particularly a non-woven, and filter comprising this flat product | |
AT409866B (en) | Impregnation of fleece fibres with fungicide and flame retardant agent spray in an air tunnel | |
WO1993006281A1 (en) | Air-conditioning process and device for mechanical weaving looms | |
EP0292585A1 (en) | Method for making a fibre web | |
DE10025177A1 (en) | Method and device for resolving irregularities in wood fiber streams | |
DE10148376B4 (en) | Insulation mat based on hemp fibers and process and equipment for their production | |
DE102004054162B3 (en) | Method and device for preventing contamination of a transport device due to freshly glued fibers | |
DE102016014092A1 (en) | Method of protecting an adhesive dispenser and the like | |
DE10041838A1 (en) | Structuring fibers in fleece formed aerodynamically, is achieved by passing between endless belts which compress it to desired final dimension |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |