DE1165540B - Method for producing a continuous fiber nonwoven web, in particular from glass fibers - Google Patents
Method for producing a continuous fiber nonwoven web, in particular from glass fibersInfo
- Publication number
- DE1165540B DE1165540B DEI16260A DEI0016260A DE1165540B DE 1165540 B DE1165540 B DE 1165540B DE I16260 A DEI16260 A DE I16260A DE I0016260 A DEI0016260 A DE I0016260A DE 1165540 B DE1165540 B DE 1165540B
- Authority
- DE
- Germany
- Prior art keywords
- fibers
- fiber
- nonwoven web
- producing
- glass fibers
- 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
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Classifications
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/002—Inorganic yarns or filaments
- D04H3/004—Glass yarns or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/0037—Materials containing oriented fillers or elements
- C04B2111/00379—Materials containing oriented fillers or elements the oriented elements being fibres
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Nonwoven Fabrics (AREA)
Description
Verfahren zum Herstellen einer kontinuierlichen Faservliesbahn, insbesondere aus Glasfasern Flächenelemente aus Fasern, mit oder ohne Bindemittel hergestellt, werden vielfach diskontinuierlich erzeugt, indem man entweder von Faseraufschichtungen oder von Aufschichtungen aus einzelnen aus Fasern gebildeten Lamellen ausgeht.Process for producing a continuous fiber nonwoven web, in particular made of glass fibers surface elements made of fibers, with or without binders, are often produced discontinuously, either by layering fibers or starts from layers of individual lamellae formed from fibers.
So ist es bei der diskontinuierlichen Herstellung von Flächenelementen aus Fasern bereits bekannt, von einem dünnen Fasergebilde auszugehen, das durch Querschneiden in einzelne Blätter zerlegt wird. Diese einzelnen Blätter werden in der gewünschten Anzahl von einer Saugvorrichtung angesammelt und als Paket auf einem Transportband zur weiteren Bearbeitung abgelegt. Außerdem ist es bekannt, Faserbahnen so aufeinander zu schichten, daß die Fasern der einen Schicht im Winkel zu den Fasern der benachbarten Schicht verlaufen.This is the case with the discontinuous production of surface elements already known from fibers to start from a thin fiber structure that by Cross cutting is broken down into individual sheets. These individual leaves are in the desired number is collected by a suction device and packaged on top of a Conveyor belt deposited for further processing. It is also known to have fiber webs layer on top of each other so that the fibers of one layer are at an angle to the fibers the adjacent layer.
Da es vielfach notwendig ist, mit langen Fasern zu arbeiten, nämlich dann, wenn das verwendete Bindemittel keine hohe Haftfestigkeit an den Fasern hat und infolgedessen die Fasern tief in diesem Bindemittel verankert werden müssen, um bei dem späteren Werkstoff die notwendige Festigkeit zu ergeben, und sich lange Fasern nicht ohne weiteres verfilzen lassen, muß in diesem Falle von dünnen, lamellenartigen Faserflächen ausgegangen werden, die man schichtweise aufeinanderlegt, um das Vlies zu bilden. Die so vorgebildeten Faseraufschüttungen können ebenso wie die lamellierten Schichtungen mit Hilfe von Bindemitteln durch Druck und Wärme oder auch durch kalte bzw. drucklose Aushärtung in Platten oder Formkörper umgeformt werden. Die Bildung eines kontinuierlichen Vlieses dagegen ist zwar in einer wäßrigen Aufschwemmung der Fasern oder einer Luftaufwirbelung der Fasern, z. B. auf der Langsiebmaschine oder auch auf der Wirbelformmaschine, möglich, dagegen macht es Schwierigkeiten, lamellenartige Fasergebilde, z. B. aus langen Glasfasern, mechanisch zu einer kontinuierlichen Vliesbahn zusammenzubringen.Since it is often necessary to work with long fibers, namely when the binder used does not have a high adhesive strength to the fibers and consequently the fibers must be anchored deep in this binder, in order to produce the necessary strength in the later material, and for a long time Fibers not easily felted, must in this case be thin, lamellar Fiber surfaces are assumed, which are laid one on top of the other in layers to form the fleece to build. The fiber fillings preformed in this way can be used in the same way as the laminated ones Layering with the help of binders through pressure and heat or also through cold or unpressurized curing can be formed into sheets or moldings. The education a continuous fleece, on the other hand, is in an aqueous suspension the fibers or an air turbulence of the fibers, e.g. B. on the Fourdrinier machine or on the whirling machine, possible, but it makes difficulties lamellar fiber structures, e.g. B. from long glass fibers, mechanically into a continuous Bring together nonwoven web.
Wenn ein solches Vlies aus sehr vielen Schichten bestehen soll, kann man zu diesem Zweck, z. B. von entsprechend zahlreichen Vorratsrollen aus, die lamellenartigen Gebilde abrollen und so kontinuierlich aufeinanderlegen.If such a fleece is to consist of very many layers, it can one for this purpose, z. B. from correspondingly numerous supply rolls, the lamellar Unroll structures and place them on top of each other continuously.
Dieses Verfahren macht die Verwendung von vielen sehr großen Vorratsrollen, die auch verschiedenartige Vliese enthalten können, erforderlich, von denen aus man arbeitet. Es ist auch bekannt, daß man unter Verzicht auf eine Verschiedenartigkeit der aufzulegenden Lamellen eine kontinuierliche Vliesbahn dadurch erzeugen kann, daß ein herabhängendes Fasergebilde unter hin- und hergehender Bewegung gewendelt auf ein fortschreitendes Transportband quer zur Vorschubbewegung aufgelegt wird. Empfindliche lamellenartige Fasergebilde lassen sich aber nicht ohne weiteres auf Rollen aufwickeln oder wendeln, wenn man sie nicht vorbindet oder gut vorverfilzt, was eine zusätzliche Behandlung bedeutet. Außerdem ist der Abzug von empfindlichen Fasergebilden von größeren Rollen schwierig.This procedure makes the use of many very large supply rolls, which may also contain various types of nonwovens, required from which one works. It is also known that one waives diversity the lamellas to be laid can produce a continuous fleece web, that a hanging fiber structure coiled with a reciprocating motion is placed on a progressing conveyor belt transversely to the feed movement. However, sensitive lamellar fiber structures cannot be opened easily Wind up or twist rolls if they are not pre-tied or well pre-matted, which means additional treatment. Also, the trigger is delicate Difficult to form fiber structures from larger rolls.
Bei durch Wendeln des Fasergebildes gebildeten Vliesbahnen ergeben sich außerdem folgende Schwierigkeiten: Erstens muß sich zwangläufig durch den notwendigen fortwährenden Wechsel des Winkels, unter dem die Fasergebilde aufeinandergelegt werden, eine gezackte Kante der Vliesbahn ergeben, die erst wieder durch Beschnitt begradigt werden muß, und zweitens sind die Fasergebilde an den Wendelinien aufgewölbt, und zwar jeweils um so mehr, je steifer und länger die verwendeten Fasern sind.In the case of nonwoven webs formed by twisting the fiber structure There are also the following difficulties: First, must necessarily go through the necessary continuous change of the angle at which the fiber structures are placed on top of one another result in a jagged edge of the nonwoven web, which can only be re-trimmed must be straightened, and secondly, the fiber structures are arched at the spiral lines, the more rigid and longer the fibers are, the more so.
Zur Vermeidung dieser Nachteile wird erfindungsgemäß folgendermaßen verfahren, um eine kontinuierliche Vliesbahn auf einfache Weise aus lamellenartigen lockeren Faserflächen zu bilden: Beliebige, beispielsweise auf einem Transportband kontinuierlich ankommende einschichtige lamellenartige Faserflächen,. z. B. aus in bekannter Weise verzogenen Gläsfasersträngen, oder beispielsweise auch bestehend aus dünnen, parallelfasrigen, nicht vorgebundenen Glasfaseranordnungen, die man von der Abzugstrommel einer Glasfadenziehmaschine abgenommen hat, die, wenn sie nicht als einzelne Blätter vorliegen, in bekannter Weise durch Querschnitt in einzelne Blätter zerlegt worden sind, werden in ebenfalls bekannter Weise durch eine Ansaugevorrichtung, die entsprechend einer Bogenanlegemaschine, wie sie im Buchdruck bekannt ist, arbeitet, aufgenommen und anschließend nacheinander auf eine bewegte Unterlage, z. B. ein zweites Transportband durch Abschalten des Soges abgelegt. Auf diese Weise entsteht eine geschuppte kontinuierliche Vliesbahn, deren Dicke von der Geschwindigkeit des Vorschubes der bewegten Unterlage abhängt. Das zweite Transportband, auf dem sich das Schuppenvlies bildet, kann entweder in gleicher Richtung laufen wie das erste oder auch rechtwinklig oder in einem beliebigen Winkel dazu, wobei dann aber die Ansaugvorrichtung eine Drehbewegung ausführen muß.In order to avoid these disadvantages, the following is implemented according to the invention method to produce a continuous nonwoven web in a simple manner from lamellar to form loose fiber surfaces: Any, for example on a conveyor belt continuously arriving single-layer lamellar fiber surfaces. z. B. off glass fiber strands distorted in a known manner, or, for example, also consisting made of thin, parallel-fiber, non-pre-bonded fiber optic arrangements that can be from the take-off drum of a glass thread pulling machine, which if they not present as individual sheets, in a known manner through cross-section into individual ones Leaves have been dismantled, are also in a known manner by a suction device, which works like a sheet feeder, as it is known in letterpress printing, recorded and then successively on a moving surface, z. B. a second conveyor belt by switching off of the suction. on in this way a flaky continuous fleece web is created, the thickness of which is the speed of the advance of the moving substrate depends. The second conveyor belt, on which the flake fleece is formed, can either run in the same direction like the first or at right angles or at any angle to it, where but then the suction device must perform a rotary movement.
Die Drehbewegung der Ansaugvorrichtung kann aber auch dazu benutzt werden, bei Verwendung quadratischer Einzelfasergebilde aus parallelen, nicht gebundenen Fasern, z. B. abgenommen von der Abzugstrommel der Glasfadenziehmaschine, diese in bekannter Weise abwechselnd mit längs und quer zur Vliesbahn verlaufender Faserrichtung aufeinanderzulegen und dadurch eine in beiden Richtungen sehr hohe Festigkeit der Vliesbahn zu erzielen.The rotary movement of the suction device can also be used for this when using square single fiber structures made of parallel, unbound fibers Fibers, e.g. B. removed from the take-off drum of the glass thread pulling machine, this in a known manner alternating with the fiber direction longitudinal and transverse to the nonwoven web on top of each other and thereby a very high strength in both directions Achieve nonwoven web.
Diese Verfahrensweise und der damit verbundene Effekt ist weder bei der Abnahme der Fasergebilde von Vorratsrollen noch bei gewendelter Ablage des Fasergebildes möglich.This procedure and the associated effect is neither with the removal of the fiber structure from supply rolls with the fiber structure being deposited in a spiral manner possible.
Statt einer pneumatischen Ansaugung der dünnen, lamellenartigen Faserblätter kann, unter Wahrung des gleichen kinematischen Vorganges, auch eine elektrostatische Anhebung und eine entsprechende Abwerfung durch Entladung gewählt werden.Instead of a pneumatic suction of the thin, lamellar fiber sheets can, while maintaining the same kinematic process, also an electrostatic one Raising and a corresponding dropping by discharge can be selected.
Soweit die Faserschichten sich nicht selbst, beispielsweise durch Wärme und Druck in einer nachfolgenden Presse verbinden, müssen in bekannter Weise Bindemittel verwendet werden.As far as the fiber layers are not self-sufficient, for example through Combine heat and pressure in a subsequent press in a known manner Binders are used.
Da es erwünscht ist, diese Bindemittel, sei es nun in flüssiger oder auch in Pulverform, möglichst gut zwischen die einzelnen Faserlamellen zu verteilen, ist es zweckmäßig, diese in an sich bekannter Weise durch Gießvorrichtungen, Sprühvorrichtungen oder auch Streu- oder Schüttvorrichtungen nach jeder Blattablage aufzubringen. Das so gebildete Vlies kann entweder kontinuierlich gepreßt und kalt oder heiß ausgehärtet werden, oder auch ohne besondere Pressung kalt oder warm geformt werden unter Anwendung der kalten oder heißen Aushärtung bzw. Trocknung, falls sich der Härtungsprozeß als ein Trocknungsprozeß des Bindemittels darstellt.Since it is desirable to use these binders, be it in liquid or also in powder form, to be distributed as well as possible between the individual fiber lamellas, it is expedient to use this in a manner known per se by pouring devices, spraying devices or to apply spreading or pouring devices after each sheet deposit. That Fleece formed in this way can either be continuously pressed and cured cold or hot or cold or hot formed without special pressing using the cold or hot curing or drying, if the curing process occurs as a drying process of the binder.
Auf dem zweiten Transportband vor der Schuppenbildung ankommende Materialien und auf dem Schuppenvlies nach dessen Bildung oben aufgelegte entsprechende Materialien ermöglichen es außerdem, mehrschichtige Werkstoffe kontinuierlich zu bilden. Werden Werkstoffe mit besonderen Eigenschaften, z. B. hydrophobe, schwer entflammbare oder farbige Werkstoffe, gewünscht, so können entsprechende Zusätze bei der Schuppenbildung nach jedem Blatt ebenfalls eingefügt werden.Materials arriving on the second conveyor belt before flaking and corresponding materials placed on top of the flaky fleece after it has been formed also make it possible to continuously form multilayer materials. Will Materials with special properties, e.g. B. hydrophobic, flame retardant or colored materials, if desired, appropriate additives can be used to prevent dandruff can also be inserted after each sheet.
Beispiel 1 Von dem changierten Strangvlies, welches man von der Abzugstrommel einer Glasfadenziehmaschine abgenommen hat, wird in an sich bekannter Weise von Hand ein dünner Schleier derart gebildet, daß die landen Fasern etwa im Winkel von 45° gegen die Kanten des Fasergebildes und im Winkel von 90' zueinander verlaufen. Der so gebildete Schleier wird über Transportwalzen kontinuierlich von einem Gummitransportband aufgenommen. Er wird seitlich beschnitten und durch Querschnitte in einzelne Blätter zerlegt. Diese Blätter werden von einer pneumatischen oder elektrostatischen Aufnahmevorrichtung angehoben und über das zweite Transportband getragen, auf dem die Vliesbildung sich vollzieht. Nach jeder Blattablage wird fasrige Substanz. mit einem niedrigeren Erweichungsintervall entweder eingestreut oder ebenfalls wie vorbeschrieben blattförmig aufgelegt. Das dann gebildete kontinuierliche dicke Schuppenvliesband wird unter ein beheiztes Preßband geführt, dessen Temperatur so eingestellt ist, daß die Fasern mit niedrigerem Erweichungsintervall erweichen und dadurch das Vlies in sich verkleben, was nach Erkaltung ein festes starres Produkt ergibt. Die Faserkomponente mit niedrigem Erweichungsintervall wirkt als Bindemittel. Beispiel 2 Die einzelnen Blätter eines Faserschleiers, wie sie nach Beispiel 1 gebildet und auf das zweite Transportband abgelegt wurden, werden jeweils vor Ablage des nächsten Blattes mit Gips in viskosem Zustand, der nie ideal erreichbar ist, weil ein Teil des Gipses sofort zu kristallisieren beginnt, besprüht, derart, daß eine Schuppenvliesbahn entsteht, die zu etwa 10% aus Glasfasern und zu 900,70 aus Gips, als Festsubstanz gerechnet, besteht. Diese Vliesbahn durchläuft eine Preß- und Härtungszone, in der ein mäßiger Druck auf das begipste Schuppenvlies ausgeübt wird. Die Länge dieser Presse ist mit der Erhärtungszeit des Gipses und mit der Geschwindigkeit des Transportbandes sowie mit der Menge des dem Gips beizufügenden Beschleunigers so abgestimmt, daß eine glasfaserbewehrte Gipsplatte von beispielsweise 4 bis 10 mm Dicke die Presse verläßt.EXAMPLE 1 A thin veil is formed by hand in a manner known per se from the traversed strand fleece, which has been removed from the take-off drum of a glass thread-pulling machine, in such a way that the fibers land at an angle of approximately 45 ° to the edges of the fiber structure and at an angle of 90 ' to each other. The veil formed in this way is continuously picked up by a rubber conveyor belt via transport rollers. It is trimmed laterally and divided into individual sheets by cross-cutting. These sheets are lifted by a pneumatic or electrostatic pick-up device and carried over the second conveyor belt on which the web formation takes place. After each leaf deposition, fibrous substance becomes. with a lower softening interval either sprinkled in or also laid on in sheet form as described above. The then formed continuous thick flake fleece belt is passed under a heated press belt, the temperature of which is set so that the fibers with a lower softening interval soften and thereby stick the fleece together, which results in a solid, rigid product after cooling. The fiber component with the low softening interval acts as a binder. Example 2 The individual sheets of a fiber veil, as formed according to Example 1 and placed on the second conveyor belt, are each in a viscous state before the next sheet is placed with plaster of paris, which is never ideal because part of the plaster of paris immediately begins to crystallize , sprayed in such a way that a flaky fleece web is formed, which consists of about 10% glass fibers and 900.70 gypsum, calculated as a solid substance. This fleece web runs through a pressing and hardening zone in which moderate pressure is exerted on the plastered scale fleece. The length of this press is coordinated with the hardening time of the plaster of paris and with the speed of the conveyor belt as well as with the amount of accelerator to be added to the plaster of paris so that a glass fiber reinforced plasterboard, for example 4 to 10 mm thick, leaves the press.
Sie hat eine Biegefestigkeit von etwa 400 kp/cm= und stellt damit ein Bauelement ähnlich einer Holzfaserplatte dar, ohne aber brennbar zu sein und ohne zu quellen oder zu schwinden wie diese. Beispiel 3 Es wird verfahren wie im Beispiel 2, jedoch wird der Gips trocken eingestreut, und die gebildete dicke Schuppenvliesbahn wird vor dem Pressen mit einer abgestimmten Menge Wasser oder Dampf befeuchtet.It has a flexural strength of about 400 kp / cm = and thus represents a structural element similar to a wood fiber board, but without being flammable and without swelling or shrinking like this. Example 3 The procedure is as in Example 2, however, the plaster of paris is sprinkled dry, and the thick flake fleece web that is formed is moistened with a balanced amount of water or steam before pressing.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI16260A DE1165540B (en) | 1959-03-18 | 1959-03-18 | Method for producing a continuous fiber nonwoven web, in particular from glass fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI16260A DE1165540B (en) | 1959-03-18 | 1959-03-18 | Method for producing a continuous fiber nonwoven web, in particular from glass fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1165540B true DE1165540B (en) | 1964-03-19 |
Family
ID=7185909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEI16260A Pending DE1165540B (en) | 1959-03-18 | 1959-03-18 | Method for producing a continuous fiber nonwoven web, in particular from glass fibers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1165540B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014207098A1 (en) * | 2013-06-26 | 2014-12-31 | Knauf Gips Kg | Process for producing a gypsum fiber board |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE534056C (en) * | 1928-04-17 | 1931-09-23 | Ernst Olof Munktell | Process for the production of linen substitutes |
| DE639505C (en) * | 1934-11-16 | 1936-12-07 | Thueringische Glaswollindustri | Process for producing a glass sheet |
| DE657871C (en) * | 1938-03-16 | Patentverwertung Dr Martin Gue | Process for the production of fibrous webs by passing a fiber fleece through an impregnation liquor | |
| DE1008247B (en) * | 1956-04-16 | 1957-05-16 | Wirkmaschb Limbach Oberfrohna | Method for producing a textile fabric, consisting of at least two fiber batt layers |
| AT193085B (en) * | 1951-06-29 | 1957-11-25 | Owens Corning Fiberglass Corp | Method and device for the production of mats or plates from glass fibers |
| GB794821A (en) * | 1953-10-09 | 1958-05-14 | Sud West Chemie G M B H | Improvements relating to the production of webs or the like of fibrous material |
-
1959
- 1959-03-18 DE DEI16260A patent/DE1165540B/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE657871C (en) * | 1938-03-16 | Patentverwertung Dr Martin Gue | Process for the production of fibrous webs by passing a fiber fleece through an impregnation liquor | |
| DE534056C (en) * | 1928-04-17 | 1931-09-23 | Ernst Olof Munktell | Process for the production of linen substitutes |
| DE639505C (en) * | 1934-11-16 | 1936-12-07 | Thueringische Glaswollindustri | Process for producing a glass sheet |
| AT193085B (en) * | 1951-06-29 | 1957-11-25 | Owens Corning Fiberglass Corp | Method and device for the production of mats or plates from glass fibers |
| GB794821A (en) * | 1953-10-09 | 1958-05-14 | Sud West Chemie G M B H | Improvements relating to the production of webs or the like of fibrous material |
| DE1008247B (en) * | 1956-04-16 | 1957-05-16 | Wirkmaschb Limbach Oberfrohna | Method for producing a textile fabric, consisting of at least two fiber batt layers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014207098A1 (en) * | 2013-06-26 | 2014-12-31 | Knauf Gips Kg | Process for producing a gypsum fiber board |
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