EP0990626A1 - Polymer coated woven glass fabric and process for its production - Google Patents

Polymer coated woven glass fabric and process for its production Download PDF

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Publication number
EP0990626A1
EP0990626A1 EP99112230A EP99112230A EP0990626A1 EP 0990626 A1 EP0990626 A1 EP 0990626A1 EP 99112230 A EP99112230 A EP 99112230A EP 99112230 A EP99112230 A EP 99112230A EP 0990626 A1 EP0990626 A1 EP 0990626A1
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EP
European Patent Office
Prior art keywords
plastic
glass
thermoplastic
mesh
netting
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Granted
Application number
EP99112230A
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German (de)
French (fr)
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EP0990626B1 (en
Inventor
André Dr. Moll
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Vitrulan Textilglas GmbH
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Vitrulan Textilglas GmbH
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Publication of EP0990626A1 publication Critical patent/EP0990626A1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0022—Glass fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
    • D03D15/267—Glass
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • D06N3/0093—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by applying resin powders; by sintering
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material

Definitions

  • the invention relates to a plastic-coated glass mesh, in particular for plaster reinforcement or as geotextile, as well as a method its manufacture.
  • glass mesh fabric is not only meant to be real fabric with leno weave or plain weave or other weave, but also clutches.
  • a coating of glass mesh with plastic is necessary on the one hand to guarantee the sliding resistance of the glass fabric and on the other hand protect the glass from the chemical attack of alkaline media.
  • the technology is to cover the raw glass mesh with aqueous plastic dispersions, consisting of styrene-butadiene copolymers, acrylate, vinyl acetate or Ethylene chloride polymers or their mixtures, to name but a few impregnate.
  • aqueous plastic dispersions consisting of styrene-butadiene copolymers, acrylate, vinyl acetate or Ethylene chloride polymers or their mixtures, to name but a few impregnate.
  • the invention is therefore based on the object of a plastic-coated glass mesh to create which is quick, easy and with any thickness Layer thickness of the plastic surrounding the glass fibers can be produced and that is safely protected against the attack of alkaline media.
  • the coating material is a thermoplastic, the weight fraction being preferred of the thermoplastic on the total weight between 10 and 30 % By weight.
  • thermoplastic plastic a wrapping can -
  • the various manufacturing processes below in more detail should be described - much more effective and simple and in particular also take place with a variable layer thickness of the enveloping plastic than in the previous dispersion impregnation processes.
  • thermoplastic materials a previously unattainable wetting of the Glass fibers are done in the heat.
  • the glass mesh should preferably be used both in the weft and in the warp Glass filament materials such as B. glass silk and glass roving, the The titer of the glass filament materials can be between 22 tex and 2400 tex.
  • the glass mesh fabric can be used in addition to the glass fiber materials other fibers, such as. As polyester, kevlar or carbofibers contain.
  • thermoplastic Plastic not just the individual fibers of the glass mesh under Exposing the lattice openings, but rather the lattice openings with formation sealed with a reinforced film.
  • the invention plastic-coated glass mesh with some in the coating material to provide embedded sand, so that an improvement in adhesion is given in the plaster on the one hand and also adherence to high temperatures is prevented.
  • the production of a glass mesh fabric according to the invention can be preferred in that the melting thermoplastic in one Drinking bath is applied to the glass mesh and hot squeezed, being in the normal formation of the coated glass mesh with open Mesh openings, the mesh openings after squeezing with air, preferably Hot air, be blown free.
  • air preferably Hot air
  • the melting thermoplastic in one Drinking bath is applied to the glass mesh and hot squeezed, being in the normal formation of the coated glass mesh with open Mesh openings, the mesh openings after squeezing with air, preferably Hot air, be blown free.
  • air preferably Hot air
  • thermoplastic Plastic in hot plastic form using an extruder on the glass mesh applied and the excess plastic removed by a squeegee becomes.
  • the mesh openings are preferred blow free by hot air.
  • thermoplastic as a powder coating, in particular in an electrostatic adhesive coating process, on the glass mesh applied and then heated in an oven shaft or Heat tunnel is melted.
  • the glass mesh fabric After application, melting and, if necessary, blowing out the mesh openings the glass mesh fabric is preferably transported through a cooling section in order to to cause a cooling as quickly as possible, so that the finished coated Glass mesh can then be rolled up immediately.
  • a plastic-coated glass mesh fabric according to the invention can be used - Under which, as already mentioned, also plastic-coated Glass-lattice scrims are to be understood - also in such a way that the glass fibers before weaving or laying with a thermoplastic Plastic coating and the finished glass mesh (or glass scrim) after weaving or laying over the softening temperature of the thermoplastic is heated, so that the glass fibers stick together. This is preferably done in the way that the glass mesh fabric is glued between heated rollers.
  • This Training has the advantage that a plastic coating of the glass fibers is also guaranteed at the crossing points.
  • the tight gaps in the Crossing points of the glass fibers of the weft threads and warp threads can be namely because of the viscosity and surface tension of the thermoplastic Insufficient plastic and in some cases not backfilling at all. This is avoided by wrapping the fibers beforehand before weaving, this enveloping the fibers in a further embodiment of the invention should preferably take place in such a way that with the extrusion of the glass fibers in a jacket nozzle this is immediately covered with thermoplastic becomes.
  • the metering of the amount of the coating material can be particularly advantageous be selected from thermoplastic so that this thermoplastic Coating is suitable to the plastic coated glass mesh with the surface to which it is applied, for example wood, Stone, marble, plastic or the like to glue.
  • the glass mesh fabric according to the invention is then simply placed on the surface to be coated and for example with the aid of a hot air blower or the like. So far heated that the softening plastic in connection with pressing ("ironing") on the supporting base is glued.
  • the glass mesh fabric 1 is unwound from a supply roll 2 and through a drinking bath 3 with one below the level of the melted thermoplastic 4 lying deflection roller 5 passed so that it is completely saturated with the thermoplastic.
  • the excess plastic is squeezed off again falls back into the drinking bath and then it happens with still plastic Plastic-encased glass mesh a blow-out station 8 in which Hot air 9 the mesh openings are blown free.
  • After passing one Cooling section 10 can turn the coated glass mesh fabric on a Roll 11 are wound up. 1 is in front of the supply roll 2 dashed another way of feeding the glass mesh fabric, for example from the weaving machine, indicated. In this case, the roll 2 only forms a pulley.
  • enlarged sections can be seen through a plastic-coated Glass grid fabric or in Fig. 4 by a glass grid scrim.
  • the Weft threads 13 and the warp threads 14 form gaps 15 in the intersection area can be covered with the plastic coating 16 only with great difficulty subsequently can. Because of the small size of these gaps, the softened thermoplastic can Plastic in many cases because of the too high viscosity or too high Surface tension does not penetrate sufficiently into these gaps and thus into these gaps do not sufficiently encase the glass fibers and thus against the Protect attack from aggressive media.
  • FIGS. 5 and 6 what is shown in FIGS. 5 and 6 is the glass fibers before weaving or laying to the lattice structure individually wrapped with a plastic coating 16 '. Then will the fabric or scrim - preferably by pressing between heated Rolling - at the crossing points by locally heating the plastic glued. Gaps with unglued and uncoated sections of the glass fibers, 3 and 4, as in the exemplary embodiments according to FIGS So do not occur previously individually wrapped glass fibers.

Abstract

Coating a glass fiber netting with thermoplastic polymer comprises passing the netting through an immersion bath of molten thermoplastic material and then through a blower to clear the mesh openings followed by a hot mangle station before cooling and winding. The netting is a woven fabric, with glass filaments in the warps and wefts as glass yarns or rovings, in a thickness of 22-2400 tex. The glass filaments can also contain other synthetic or carbon fibers. The plastics coating is applied at a rate of 10-30 wt% of the total weight, in a structure which can form a film over the woven netting as a reinforced film material. Sand can be bonded partially into the cladding. An Independent claim is included for a production process where the woven netting (1) is immersed in a bath (3) of molten thermoplastic cladding material (4), and mangled (6,7) while hot. Preferred Features: The hot plastics cladding material can be applied from an extruder as a paste over the woven netting, with a scraper to remove any surplus cladding. The mesh openings can be cleared by an air blower (8), and preferably with hot air (9). The plastics cladding can also be applied to the woven netting as a powder, such as by an electronic adhesion coating process, to be melted in a furnace shaft or a heated tunnel. The coated netting is passed through a cooling stretch (10). The glass fiber material can be cladded with a thermoplastics before weaving into the netting fabric, so that the glass fibers bond together when passed between heated rollers. The glass fiber filaments can be cladded with the thermoplastics material through an extruder. Hot sand is scattered over the surface of the finished and cladded woven netting material.

Description

Die Erfindung bezieht sich auf ein kunststoffbeschichtetes Glas-Gittergewebe, insbesondere für die Putzarmierung oder als Geotextil, sowie ein Verfahren zu seiner Herstellung. Dabei soll der Begriff "Glas-Gittergewebe" nicht nur echte Gewebe mit Dreherbindung oder Leinwandbindung oder sonstiger Bindung umfassen, sondern auch Gelege.The invention relates to a plastic-coated glass mesh, in particular for plaster reinforcement or as geotextile, as well as a method its manufacture. The term "glass mesh fabric" is not only meant to be real fabric with leno weave or plain weave or other weave, but also clutches.

Eine Beschichtung von Glas-Gittergeweben mit Kunststoff ist notwendig um einerseits die Verschiebefestigkeit des Glasgewebes zu garantieren und um andererseits das Glas vor dem chemischen Angriff alkalischer Medien zu schützen. Stand der Technik ist es, die rohen Glas-Gittergewebe mit wässrigen Kunststoffdispersionen, bestehend aus Styrol-Butadien-Copolymeren, Acrylat-, Vinylacetat- oder Ethylenchlorid-Polymeren oder deren Mischungen um nur einige zu nennen, zu imprägnieren. Durch das Verdampfen des Wassers nach der Tauchbeschichtung bildet sich ein Film, welcher in der Hitze nach dem vollständigen Entweichen des Wassers vernetzt. Dieses Verfahren zur Kunststoffbeschichtung - man vgl. beispielsweise die Offenlegungsschrift DE 41 38 717 A1 - ist sehr energieintensiv und erreicht keinen100 %-igen Schutz gegen den Angriff alkalischer Medien.A coating of glass mesh with plastic is necessary on the one hand to guarantee the sliding resistance of the glass fabric and on the other hand protect the glass from the chemical attack of alkaline media. was standing the technology is to cover the raw glass mesh with aqueous plastic dispersions, consisting of styrene-butadiene copolymers, acrylate, vinyl acetate or Ethylene chloride polymers or their mixtures, to name but a few impregnate. By evaporating the water after the dip coating a film forms, which is in the heat after the complete escape of the Water networked. This process for plastic coating - cf. for example the published patent application DE 41 38 717 A1 - is very energy-intensive and does not achieve 100% protection against the attack of alkaline media.

Der Erfindung liegt daher die Aufgabe zugrunde, ein kunststoffbeschichtetes Glas-Gittergewebe zu schaffen, welches rasch, einfach und mit beliebig dicker Schichtdicke des die Glasfasern umgebenden Kunststoffs herstellbar ist und das sicher gegen den Angriff alkalischer Medien geschützt ist.The invention is therefore based on the object of a plastic-coated glass mesh to create which is quick, easy and with any thickness Layer thickness of the plastic surrounding the glass fibers can be produced and that is safely protected against the attack of alkaline media.

Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, daß das Beschichtungsmaterial ein thermoplastischer Kunststoff ist, wobei bevorzugt der Gewichtsanteil des thermoplastischen Kunststoffs am Gesamtgewicht zwischen 10 und 30 Gew.-% liegt.To solve this problem, the invention provides that the coating material is a thermoplastic, the weight fraction being preferred of the thermoplastic on the total weight between 10 and 30 % By weight.

Durch die Verwendung von thermoplastischem Kunststoff kann eine Umhüllung - wobei die verschiedenen Fertigungsverfahren weiter unten noch im einzelnen beschrieben werden sollen - wesentlich effektiver und einfacher und insbesondere auch mit variabler Schichtdicke des umhüllenden Kunststoffs erfolgen als bei den bisherigen Dispersionsimprägnierverfahren. Bei sehr umfangreichen, der vorliegenden Erfindung zugrunde liegenden Versuchen hat sich gezeigt, daß durch den Einsatz thermoplastischer Kunststoffe eine bisher unerreichte Benetzung der Glasfasern in der Wärme erfolgt. Das Saugverhalten der Glasfaserseelen, welches für bisherige Gittergewebe spezifisch ist, wird durch die sehr gute Durchdringung des Faserkerns vollständig unterbrochen. Es ergibt sich insbesondere ein optimaler Schutz gegen alkalische Medien.Through the use of thermoplastic plastic, a wrapping can - The various manufacturing processes below in more detail should be described - much more effective and simple and in particular also take place with a variable layer thickness of the enveloping plastic than in the previous dispersion impregnation processes. With very extensive, the present Experiments underlying the invention have been shown that by the Use of thermoplastic materials a previously unattainable wetting of the Glass fibers are done in the heat. The suction behavior of the glass fiber souls, which is specific for previous mesh, due to the very good penetration of the fiber core completely interrupted. It results in particular one optimal protection against alkaline media.

Das Glas-Gittergewebe soll bevorzugt sowohl im Schuß als auch in der Kette Glasfilamentmaterialien, wie z. B. Glasseide und Glasroving, enthalten, wobei der Titer der Glasfilamentmaterialien zwischen 22 tex und 2400 tex liegen kann.The glass mesh should preferably be used both in the weft and in the warp Glass filament materials such as B. glass silk and glass roving, the The titer of the glass filament materials can be between 22 tex and 2400 tex.

Darüber hinaus kann das Glas-Gittergewebe jedoch neben den Glasfasermaterialien auch andere Fasern, wie z. B. Polyester-, Kevlar- oder Carbofasern, enthalten.In addition, however, the glass mesh fabric can be used in addition to the glass fiber materials other fibers, such as. As polyester, kevlar or carbofibers contain.

Schließlich liegt es auch noch im Rahmen der Erfindung, daß der thermoplastische Kunststoff nicht nur die einzelnen Fasern des Glas-Gittergewebes unter Freilegung der Gitteröffnungen umhüllt, sondern die Gitteröffnungen unter Bildung einer armierten Folie verschließt.Finally, it is also within the scope of the invention that the thermoplastic Plastic not just the individual fibers of the glass mesh under Exposing the lattice openings, but rather the lattice openings with formation sealed with a reinforced film.

Dabei liegt es auch noch im Rahmen der Erfindung, das erfindungsgemäße kunststoffbeschichtete Glas-Gittergewebe mit teilweise in das Beschichtungsmaterial eingebundenem Sand zu versehen, so daß eine Verbesserung der Anhaftung im Putz einerseits gegeben ist und darüber hinaus auch die Anhaftung bei hohen Temperaturen verhindert ist.It is also within the scope of the invention, the invention plastic-coated glass mesh with some in the coating material to provide embedded sand, so that an improvement in adhesion is given in the plaster on the one hand and also adherence to high temperatures is prevented.

Die Herstellung eines erfindungsgemäßen Glas-Gittergewebes kann bevorzugt dadurch erfolgen, daß der geschmolzende thermoplastische Kunststoff in einem Tränkebad auf das Glas-Gittergewebe aufgebracht und heiß abgequetscht wird, wobei bei der normalen Ausbildung des umhüllten Glas-Gittergewebes mit offenen Maschenöffnungen, die Maschenöffnungen nach dem Abquetschen mit Luft, vorzugsweise Heißluft, freigeblasen werden. Je nach dem Ausmaß des Abquetschens und der Stärke der Ausblas-Heißluft lassen sich unterschiedlich dicke Kunststoffschichten an den Fasern des Glas-Gittergewebes aufbringen.The production of a glass mesh fabric according to the invention can be preferred in that the melting thermoplastic in one Drinking bath is applied to the glass mesh and hot squeezed, being in the normal formation of the coated glass mesh with open Mesh openings, the mesh openings after squeezing with air, preferably Hot air, be blown free. Depending on the extent of the squeezing and the strength of the blow-out hot air can be of different thicknesses Apply plastic layers to the fibers of the glass mesh.

Alternativ könnte die Herstellung auch in der Weise erfolgen, daß der thermoplastische Kunststoff in heißer plastischer Form mittels eines Extruders auf das Glas-Gittergewebe aufgebracht und der Kunststoffüberschuß durch ein Rakel entfernt wird. Auch in diesem Fall wird man wiederum bevorzugt die Maschenöffnungen durch Heißluft freiblasen. Schließlich liegt es auch noch im Rahmen der Erfindung, daß der thermoplastische Kunststoff als Pulverbeschichtung, insbesondere in einem elektrostatischen Haftbeschichtverfahren, auf das Glas-Gittergewebe aufgebracht und durch anschließendes Erhitzen in einem Ofenschacht oder einem Wärmetunnel aufgeschmolzen wird.Alternatively, the production could also take place in such a way that the thermoplastic Plastic in hot plastic form using an extruder on the glass mesh applied and the excess plastic removed by a squeegee becomes. In this case too, the mesh openings are preferred blow free by hot air. Finally, it is also within the scope of the invention that the thermoplastic as a powder coating, in particular in an electrostatic adhesive coating process, on the glass mesh applied and then heated in an oven shaft or Heat tunnel is melted.

Nach dem Aufbringen, Aufschmelzen und ggf. Freiblasen der Maschenöffnungen wird das Glas-Gittergewebe bevorzugt durch eine Kühlstrecke transportiert, um eine möglichst rasche Abkühlung zu bewirken, so daß das fertige beschichtete Glas-Gittergewebe anschließend sofort aufgerollt werden kann.After application, melting and, if necessary, blowing out the mesh openings the glass mesh fabric is preferably transported through a cooling section in order to to cause a cooling as quickly as possible, so that the finished coated Glass mesh can then be rolled up immediately.

Alternativ läßt sich ein erfindungsgemäßes kunststoffbeschichtetes Glas-Gittergewebe - unter dem, wie bereits eingangs ausgeführt wurde, auch kunststoffbeschichtete Glas-Gittergelege zu verstehen sind - auch in der Weise aufbauen, daß die Glasfasern vor der Verwebung oder Verlegung mit einer thermoplastischen Kunststoffbeschichtung versehen werden und das fertige Glas-Gittergewebe (bzw. Glas-Gittergelege) nach dem Verweben oder Verlegen über die Erweichungstemperatur des thermoplastischen Kunststoffs erwärmt wird, so daß die Glasfasern miteinander verkleben. Dies erfolgt bevorzugt in der Weise, daß das Glas-Gittergewebe zwischen erhitzten Walzen verklebt wird. Durch diese Ausbildung ergibt sich der Vorteil, daß eine Kunststoffumhüllung der Glasfasern auch an den Kreuzungsstellen sicher gewährleistet ist. Die engen Lücken an den Kreuzungspunkten der Glasfasern der Schußfäden und Kettfäden lassen sich nämlich wegen der Viskosität und der Oberflächenspannung des thermoplastischen Kunststoffs nur unzureichend und in manchen Fällen überhaupt nicht verfüllen. Dies vermeidet man bei der vorherigen Umhüllung der Fasern vor dem Verweben, wobei dieses Umhüllen der Fasern in weiterer Ausgestaltung der Erfindung bevorzugt in der Weise erfolgen soll, daß mit dem Extrudieren der Glasfasern in einer Manteldüse diese gleich mit thermoplastischem Kunststoff umhüllt wird.Alternatively, a plastic-coated glass mesh fabric according to the invention can be used - Under which, as already mentioned, also plastic-coated Glass-lattice scrims are to be understood - also in such a way that the glass fibers before weaving or laying with a thermoplastic Plastic coating and the finished glass mesh (or glass scrim) after weaving or laying over the softening temperature of the thermoplastic is heated, so that the glass fibers stick together. This is preferably done in the way that the glass mesh fabric is glued between heated rollers. Through this Training has the advantage that a plastic coating of the glass fibers is also guaranteed at the crossing points. The tight gaps in the Crossing points of the glass fibers of the weft threads and warp threads can be namely because of the viscosity and surface tension of the thermoplastic Insufficient plastic and in some cases not backfilling at all. This is avoided by wrapping the fibers beforehand before weaving, this enveloping the fibers in a further embodiment of the invention should preferably take place in such a way that with the extrusion of the glass fibers in a jacket nozzle this is immediately covered with thermoplastic becomes.

Mit besonderem Vorteil kann die Dosierung der Menge des Beschichtungsmaterials aus thermoplastischem Kunststoff so gewählt sein, dass diese thermoplastische Beschichtung geeignet ist, um das kunststoffbeschichtete Glasgittergewebe mit der Oberfläche, auf die es aufgebracht wird, also beispielsweise Holz, Stein, Marmor, Kunststoff od. dgl. zu verkleben. Das erfindungsgemäße Glasgittergewebe wird dann einfach auf die zu beschichtende Oberfläche aufgelegt und beispielsweise mit Hilfe eines Heißluftgebläses od. dgl. soweit erwärmt, dass der sich erweichende Kunststoff in Verbindung mit einem Andrücken ("Aufbügeln") mit der tragenden Grundfläche verklebt wird.The metering of the amount of the coating material can be particularly advantageous be selected from thermoplastic so that this thermoplastic Coating is suitable to the plastic coated glass mesh with the surface to which it is applied, for example wood, Stone, marble, plastic or the like to glue. The glass mesh fabric according to the invention is then simply placed on the surface to be coated and for example with the aid of a hot air blower or the like. So far heated that the softening plastic in connection with pressing ("ironing") on the supporting base is glued.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung zweier Ausführungsbeispiele sowie der Zeichnung. Dabei zeigen:

Fig. 1
den schematischen Funktionsablauf bei der Fertigung eines erfindungsgemäßen Glas-Gittergewebes in einem geschmolzenen Kunststofftränkebad,
Fig. 2
den Fertigungsablauf bei einer Pulverbeschichtung des Glas-Gittergewebes,
Fig. 3
einen vergrößerten Schnitt durch ein kunststoffbeschichtetes Glas-Gittergewebe, das nachträglich nach der Ausbildung des Gitters mit thermoplastischem Kunststoff umhüllt wurde,
Fig.4
einen der Fig. 3 entsprechenden Schnitt durch ein nachträglich mit thermoplastischem Kunststoff umhülltes Glasfasergelege und
Fig. 5 und 6
den Fig. 3 und 4 entsprechende Schnittbilder durch Gitter- bzw. Gelege, bei denen die Glasfasern vor dem Verweben oder Verlegen mit Kunststoff umhüllt worden sind.
Further advantages, features and details of the invention result from the following description of two exemplary embodiments and the drawing. Show:
Fig. 1
the schematic functional sequence in the production of a glass mesh fabric according to the invention in a molten plastic drinking bath,
Fig. 2
the manufacturing process for a powder coating of the glass mesh,
Fig. 3
an enlarged section through a plastic-coated glass mesh fabric, which was subsequently covered with thermoplastic material after the formation of the grid,
Fig. 4
3 corresponding section through a glass fiber fabric subsequently covered with thermoplastic material and
5 and 6
3 and 4 corresponding sectional images through grids or fabrics, in which the glass fibers have been coated with plastic before weaving or laying.

In Fig. 1 wird das Glas-Gittergewebe 1 von einer Vorratsrolle 2 abgewickelt und durch ein Tränkebad 3 mit einer unterhalb des Spiegels des geschmolzenen thermoplastischen Kunststoffs 4 liegenden Umlenkwalze 5 geleitet, so daß es vollständig mit dem thermoplastischen Kunststoff getränkt wird. Durch zwei Abquetschwalzen 6 und 7 wird der überschüssige Kunststoff abgequetscht, der wieder in das Tränkebad zurückfällt und anschließend passiert das mit noch plastischem Kunststoff umhüllte Glas-Gittergewebe eine Ausblasstation 8, in der durch Heißluft 9 die Maschenöffnungen freigeblasen werden. Nach Passieren einer Kühlstrecke 10 kann das fertig beschichtete Glas-Gittergewebe wiederum auf eine Rolle 11 aufgewickelt werden. In Fig. 1 ist darüber hinaus vor der Vorratsrolle 2 gestrichelt eine weitere Zuführmöglichkeit des Glas-Gittergewebes, beispielsweise von der Webmaschine, angedeutet. In diesem Fall bildet dann die Rolle 2 lediglich eine Umlenkrolle.In Fig. 1, the glass mesh fabric 1 is unwound from a supply roll 2 and through a drinking bath 3 with one below the level of the melted thermoplastic 4 lying deflection roller 5 passed so that it is completely saturated with the thermoplastic. By two squeeze rollers 6 and 7, the excess plastic is squeezed off again falls back into the drinking bath and then it happens with still plastic Plastic-encased glass mesh a blow-out station 8 in which Hot air 9 the mesh openings are blown free. After passing one Cooling section 10 can turn the coated glass mesh fabric on a Roll 11 are wound up. 1 is in front of the supply roll 2 dashed another way of feeding the glass mesh fabric, for example from the weaving machine, indicated. In this case, the roll 2 only forms a pulley.

Bei dem Fertigungsverfahren, das in Fig. 2 schematisch dargestellt ist, wird das Glas-Gittergewebe 1 von der Vorratsrolle 2 abgewickelt und unter einer Pulverbeschichtungsvorrichtung 12 vorbeigeleitet, wobei ggf. zusätzlich das Glas-Gittergewebe vorher entgegengesetzt zum thermoplastischen Kunststoffpulver elektrostatisch aufgeladen wird. Nach der Beschichtung des Glas-Gittergewebes mit dem pulvrigen Kunststoff erfolgt das Zusammenschmelzen des Kunststoffpulvers in einem Wärmetunnel 17, hinter dem wiederum eine Kühlstrecke 10 angeordnet ist, nach dem das fertig beschichtete Glas-Gittergewebe wiederum auf die Vorratsrolle 11 aufgerollt wird.In the manufacturing process, which is shown schematically in Fig. 2, that Glass mesh fabric 1 unwound from the supply roll 2 and under a powder coating device 12 passed by, where appropriate, the glass mesh previously opposite to thermoplastic powder is electrostatically charged. After coating the glass mesh with the powdery plastic, the plastic powder is melted together in a heat tunnel 17, behind which in turn a cooling section 10 is arranged is, after which the finished coated glass mesh in turn on the Supply roll 11 is rolled up.

In den Fig. 3 und 4 erkennt man vergrößerte Schnitte durch ein kunststoffbeschichtetes Glas-Gittergewebe bzw. in Fig. 4 durch ein Glas-Gittergelege. Die Schußfäden 13 und die Kettfäden 14 bilden im Kreuzungsbereich Lücken 15, die nur sehr schwierig nachträglich mit der Kunststoffbeschichtung 16 verhüllt werden können. Wegen der Kleinheit dieser Lücken kann der erweichte thermoplastische Kunststoff in vielen Fällen wegen der zu hohen Viskosität bzw. der zu hohen Oberflächenspannung nicht ausreichend in diese Lücken eindringen und damit in diesen Lücken die Glasfasern nicht ausreichend umhüllen und damit gegen den Angriff agressiver Medien schützen.3 and 4, enlarged sections can be seen through a plastic-coated Glass grid fabric or in Fig. 4 by a glass grid scrim. The Weft threads 13 and the warp threads 14 form gaps 15 in the intersection area can be covered with the plastic coating 16 only with great difficulty subsequently can. Because of the small size of these gaps, the softened thermoplastic can Plastic in many cases because of the too high viscosity or too high Surface tension does not penetrate sufficiently into these gaps and thus into these gaps do not sufficiently encase the glass fibers and thus against the Protect attack from aggressive media.

Um diese Schwierigkeiten zu vermeiden werden, was in den Fig. 5 und 6 dargestellt ist, die Glasfasern vor dem Verweben oder dem Verlegen zu der Gitterkonstruktion einzeln mit einer Kunststoffbeschichtung 16' umhüllt. Anschließend wird das Gewebe oder Gelege - vorzugsweise durch Verpressen zwischen erhitzten Walzen - an den Kreuzungspunkten durch örtliche Erwärmung des Kunststoffs verklebt. Lücken mit unverklebten und unbeschichteten Abschnitten der Glasfasern, wie bei den Ausführungsbeispielen nach den Fig. 3 und 4, können bei den vorher einzeln umhüllten Glasfasern also nicht auftreten.To avoid these difficulties, what is shown in FIGS. 5 and 6 is the glass fibers before weaving or laying to the lattice structure individually wrapped with a plastic coating 16 '. Then will the fabric or scrim - preferably by pressing between heated Rolling - at the crossing points by locally heating the plastic glued. Gaps with unglued and uncoated sections of the glass fibers, 3 and 4, as in the exemplary embodiments according to FIGS So do not occur previously individually wrapped glass fibers.

Claims (18)

Kunststoffbeschichtetes Glas-Gittergewebe, insbesondere für die Putzarmierung oder als Geotextil, dadurch gekennzeichnet, daß das Beschichtungsmaterial thermoplastischer Kunststoff ist.Plastic-coated glass mesh, especially for plaster reinforcement or as geotextile, characterized in that the coating material is thermoplastic. Kunststoffbeschichtetes Glas-Gittergewebe nach Anspruch 1, dadurch gekennzeichnet, daß das Glas-Gittergewebe im Schuß und in der Kette Glasfilamentmaterialien, wie z. B. Glasseide und Glasroving enthält.Plastic-coated glass mesh fabric according to claim 1, characterized in that the glass grid fabric in the weft and in the warp Glass filament materials such as B. contains glass silk and glass roving. Kunststoffbeschichtetes Glas-Gittergewebe nach Anspruch 2, dadurch gekennzeichnet, daß der Titer der Glasfilamentmaterialien zwischen 22 tex und 2400 tex liegt.Plastic-coated glass mesh fabric according to claim 2, characterized in that the titer of the glass filament materials between 22 tex and is 2400 tex. Kunststoffbeschichtetes Glas-Gittergewebe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß neben Glasfasermaterialien auch andere Fasern, wie Polyester-, Kevlar- oder Carbofasern, im Glas-Gittergewebe enthalten sind.Plastic-coated glass mesh according to one of claims 1 to 3, characterized in that in addition to glass fiber materials also others Fibers, such as polyester, kevlar or carbofibers, in the glass mesh are included. Kunststoffbeschichtetes Glas-Gittergewebe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Gewichtsanteil des thermoplastischen Kunststoff am Gesamtgewicht zwischen 10 und 30 Gew.-% liegt.Plastic-coated glass mesh according to one of claims 1 to 4, characterized in that the proportion by weight of the thermoplastic Plastic on the total weight is between 10 and 30 wt .-%. Kunststoffbeschichtetes Glas-Gittergewebe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der thermoplastische Kunststoff die Gitteröffnungen unter Bildung einer armierten Folie verschließt.Plastic-coated glass mesh according to one of claims 1 to 4, characterized in that the thermoplastic plastic Closes grid openings to form a reinforced film. Kunststoffbeschichtetes Glas-Gittergewebe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß in das Beschichtungsmaterial Sand teilweise eingebunden ist.Plastic-coated glass mesh according to one of claims 1 to 6, characterized in that in the coating material sand is partially involved. Verfahren zur Herstellung eines kunststoffbeschichteten Glas-Gittergewebes nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß den geschmolzenen thermoplastischen Kunststoff in einem Tränkebad auf das Glas-Gittergewebe aufgebracht und heiß abgequetscht wird.Process for the production of a plastic-coated glass mesh according to one of claims 1 to 7, characterized in that that the melted thermoplastic in a drinking bath is applied to the glass grid fabric and squeezed hot. Verfahren zur Herstellung eines kunststoffbeschichteten Glas-Gittergewebes nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der thermoplastische Kunststoff in heißer plastischer Form mittels eines Extruders auf das Glas-Gittergewebe aufgebracht, und der Kunststoffüberschuß durch ein Rakel entfernt wird.Process for the production of a plastic-coated glass mesh according to one of claims 1 to 7, characterized in that that by means of the thermoplastic in hot plastic form an extruder applied to the glass mesh, and the plastic excess is removed by a squeegee. Verfahren nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Maschenöffnungen mit Luft, vorzugsweise Heißluft, freigeblasen werden.Method according to claim 8 or 9, characterized in that the mesh openings be blown free with air, preferably hot air. Verfahren zur Herstellung eines kunststoffbeschichteten Glas-Gittergewebes nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der thermoplastische Kunststoff als Pulverbeschichtung auf das Glas-Gittergewebe aufgebracht und durch anschließendes Erhitzen in einem Ofenschacht oder einem Wärmetunnel aufgeschmolzen wird.Process for the production of a plastic-coated glass mesh according to one of claims 1 to 6, characterized in that the thermoplastic as a powder coating on the Glass mesh fabric applied and then heated in one Furnace shaft or a heat tunnel is melted. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß das Pulver in einem elektronischen Haftbeschichtverfahren auf das Glas-Gittergewebe aufgebracht wird.A method according to claim 11, characterized in that the powder in an electronic adhesive coating process on the glass mesh is applied. Verfahren nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, daß nach dem Beschichten das Glas-Gittergewebe durch eine Kühlstrecke transportiert wird.Method according to one of claims 8 to 12, characterized in that that after coating the glass mesh through a cooling section is transported. Verfahren zur Herstellung eines kunststoffbeschichteten Glas-Gittergewebes nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Glasfasern vor der Verwebung oder Verlegung mit einer thermoplastischen Kunststoffbeschichtung versehen werden und das Glas-Gittergewebe über die Erweichungstemperatur des thermoplastischen Kunststoffs erwärmt wird, so daß die Glasfasern miteinander verkleben. Process for the production of a plastic-coated glass mesh according to one of claims 1 to 6, characterized in that the glass fibers before weaving or laying with a thermoplastic coating and the glass mesh about the softening temperature of the thermoplastic Plastic is heated so that the glass fibers stick together. Verfahren nach Anspruch 14, dadurch gekennzeichnet, daß das Glas-Gittergewebe zwischen erhitzten Walzen verklebt wird.A method according to claim 14, characterized in that the glass grid fabric is glued between heated rollers. Verfahren nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß die Glasfasern in einem Extruder mit der thermoplastischen Kunststoffbeschichtung versehen werden.A method according to claim 14 or 15, characterized in that the Glass fibers in an extruder with the thermoplastic coating be provided. Verfahren nach einem der Ansprüche 8 bis 16, dadurch gekennzeichnet, daß das fertige Gittergewebe mit heißem Sand besandet wird.Method according to one of claims 8 to 16, characterized in that that the finished mesh fabric is sanded with hot sand. Verfahren zum Aufbringen eines kunststoffbeschichteten Glasgittergewebes nach einem der Ansprüche 1 bis 17 auf eine tragende Unterlage, dadurch gekennzeichnet, dass das Beschichtungsmaterial aus thermoplastischem Kunststoff während des Aufbringens mit Hilfe einer Heizvorrichtung, insbesondere eines Heißluftgebläses, erweicht und durch Andrücken auf der Unterlage verklebt wird.Process for applying a plastic-coated glass mesh according to one of claims 1 to 17 on a supporting base, thereby characterized in that the coating material made of thermoplastic Plastic during application using a heater, especially a hot air blower, softens and presses on the pad is glued.
EP99112230A 1998-09-28 1999-06-25 Process for the production of woven glass fabric coated with a thermoplastic polymer Expired - Lifetime EP0990626B1 (en)

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DE19844387A DE19844387C2 (en) 1998-09-28 1998-09-28 Process for the production of a glass mesh fabric or glass scrim coated with thermoplastic plastic
DE19844387 1998-09-28

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WO2003087466A1 (en) * 2002-04-15 2003-10-23 Wolf Dietrich Duttlinger Method for producing a textile grid
EP1693503A1 (en) * 2005-02-18 2006-08-23 Taieb Marzouki Reinforcement for building elements and roofing membranes
EP1707652A1 (en) * 2005-03-31 2006-10-04 Siemens Aktiengesellschaft Matrix and coating system
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CN106847387A (en) * 2017-02-21 2017-06-13 朱军 A kind of high intensity drag chain cable and preparation method thereof
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WO2002032602A3 (en) * 2000-08-24 2002-06-13 Donald Henry Hourahane Manufacture of cellular material
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EP1693503A1 (en) * 2005-02-18 2006-08-23 Taieb Marzouki Reinforcement for building elements and roofing membranes
EP1707652A1 (en) * 2005-03-31 2006-10-04 Siemens Aktiengesellschaft Matrix and coating system
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DE102010010748A1 (en) * 2010-03-09 2011-09-15 Xella Technologie- Und Forschungsgesellschaft Mbh Exterior wall system of a building
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CN104153137A (en) * 2013-05-14 2014-11-19 台嘉玻璃纤维有限公司 Against-water-type flat fiber-opening device and method for glass fiber cloth
CN104153137B (en) * 2013-05-14 2016-05-04 台嘉玻璃纤维有限公司 Glass fabric is the flat fiber-opening apparatus of formula and method against the current
CN106847387A (en) * 2017-02-21 2017-06-13 朱军 A kind of high intensity drag chain cable and preparation method thereof
NO344769B1 (en) * 2018-10-05 2020-04-20 Comrod As Apparatus and method for regulating an amount of binder following a thread
US11820705B2 (en) 2018-10-05 2023-11-21 Comrod As Apparatus and method for controlling a quantity of binder resin that follows a thread

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DE19844387A1 (en) 2000-03-30
ES2201600T3 (en) 2004-03-16
DE59906753D1 (en) 2003-10-02

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