EP0446822A1 - Support web for roof foundation webs - Google Patents

Support web for roof foundation webs Download PDF

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Publication number
EP0446822A1
EP0446822A1 EP19910103645 EP91103645A EP0446822A1 EP 0446822 A1 EP0446822 A1 EP 0446822A1 EP 19910103645 EP19910103645 EP 19910103645 EP 91103645 A EP91103645 A EP 91103645A EP 0446822 A1 EP0446822 A1 EP 0446822A1
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EP
European Patent Office
Prior art keywords
carrier web
filaments
web according
melting point
binder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19910103645
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German (de)
French (fr)
Other versions
EP0446822B1 (en
EP0446822B2 (en
Inventor
Karl-Christian Zerfass
Franz Kaulich
Michael Schöps
Hans Dr. Wagner
Bertrand Claude Weiter
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Johns Manville
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Hoechst AG
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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • 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
    • D04H3/14—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 bonds between thermoplastic yarns or filaments produced by welding
    • 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
    • D04H3/14—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 bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/153—Mixed yarns or filaments
    • 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
    • D04H3/16—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 bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/681—Spun-bonded nonwoven fabric

Definitions

  • the invention relates to a carrier sheet for roofing membranes and a roofing membrane produced with this carrier membrane.
  • roofing membranes are known to be installed under the tiles or slate slabs of steep roofs or the like as protection against flying snow, dust etc.
  • roofing underlays should on the one hand be impermeable to water and on the other hand should be permeable to air and steam.
  • they should have high strength, in particular tear resistance, e.g. to be able to absorb the weight of the roofer in the event of an accident.
  • roofing underlays made of grid-reinforced foils are widespread. Although these films have good tear strength; However, the tear resistance and often also the vapor permeability remain unsatisfactory.
  • a roofing membrane made of a polyurethane film is known, which is covered with a non-woven layer of e.g. Polyester is covered.
  • a sarking membrane is mentioned which consists of highly tear-resistant polyester spunbonded fabric and is provided with a water-repellent and breathable special coating in the form of a paste.
  • a sarking membrane which consists of highly tear-resistant polyester spunbonded fabric and is provided with a water-repellent and breathable special coating in the form of a paste.
  • EP-PS 0027750 describes a carrier web for a roofing membrane which consists of a non-woven fabric made of polypropylene, polyethylene, polyester or polyvinyl and has a basis weight between 85 and 200 g / m2.
  • the fiber fleece is used to manufacture the roofing membrane Provide a bitumen layer on one side by warm coating the nonwoven with the bitumen and then cooling to cause micro-holes or micro-cracks.
  • This publication also shows nothing regarding the structure of the nonwoven fabric - apart from the fiber material used and the weight per unit area.
  • the invention has for its object to provide a carrier sheet for roofing underlay, which ensures high strength, in particular tear resistance of the roofing underlay and which has good dimensional stability even at high processing temperatures.
  • a carrier web for roofing underlays which consists of a spunbond made of polyester, in particular polyethylene terephthalate filaments
  • this object is achieved according to the invention in that the spunbonded fabric has a basis weight of 50 to 100 g / m 2 with a single titer of the filaments of 1 to 8 dtex and is solidified by a melt binder.
  • the carrier web obtains good dimensional stability even at high processing temperatures due to the structure of the spunbonded fabric according to the invention. This is important for the production of roofing underlays in which the carrier sheet is provided with bitumen. Processing temperatures of 160 to 180 ° C prevail, especially when impregnating the carrier sheet with bitumen. As has been shown, the carrier web designed according to the invention has good dimensional stability even at these high temperatures, which is essential for processing the carrier web. Carrier webs out In contrast, polypropylene, which has a softening point of approx. 156 ° C, is less suitable for bituminization, for example.
  • the carrier web is preferably used in connection with bitumen to produce a roofing underlay.
  • the carrier web is preferably impregnated with bitumen; instead, the carrier web can also be coated with bitumen, it preferably being coated on both sides with bitumen.
  • the carrier web designed according to the invention has a tear resistance of the order of 20 N to 80 N, a nail tear resistance of 50 N to 180 N and a perforation stability of 400 N to 1200 N.
  • bitumen instead of bitumen, another material, e.g. Polyethylene or polyvinyl chloride can be used with the spunbonded fabric according to the invention.
  • the low basis weight of the spunbonded fabric is advantageous in terms of vapor permeability and material consumption.
  • the basis weight of the spunbonded fabric is preferably 70 to 90 g / m 2.
  • the fine individual titer of the spunbonded filaments results in good adhesion of the material associated with the spunbonded nonwoven, in particular the bitumen, due to the high specific surface area of the spunbonded nonwoven.
  • the individual titer of the spunbonded nonwoven filaments is preferably 2 to 5 dtex, in particular 4 dtex.
  • melt binders are polymers whose melting point is lower than the melting point of the the spunbonding - the so-called supporting - filaments.
  • the melting point of the melt binder is expediently 10 ° C., preferably 30 ° C. below the melting point of the supporting filaments.
  • melt binders consist of polyesters, preferably polybutylene terephthalate or modified polyesters with a correspondingly lowered melting point, preferably modified polyethylene terephthalate.
  • the melt binders mentioned above can be used particularly advantageously in the form of binding filaments in the nonwoven during manufacture, i.e. when depositing the filaments on the conveyor belt.
  • the binding filaments melt completely or partially and form the desired binding points (binding sail) at the crossing points of the supporting filaments.
  • the proportion of binder is advantageously 5 to 25% by weight, preferably 10 to 15% by weight.
  • a spunbonded nonwoven made of polyethylene terephthalate filaments with a single titer was used as the carrier web of 4 dtex and binding filaments made of a modified polyester with a share of 9%.
  • the spunbonded fabric was thermomechanically pre-consolidated by embossing rollers and then finally consolidated by hot air.
  • the basis weight of the support was 100 g / m2.
  • the carrier sheet was then bituminized in a roofing membrane system, coated on both sides with bitumen and sanded. An excellent dimensional stability during the processing process was noticed.

Abstract

The support web consists of a spunbonded material made of polyester filaments. The spunbonded material has an area weight of 50 to 100 g/m<2> with an individual filament count of 1 to 8 dtex and is fastened by a fusible binder. By means of this, a high tear propagation resistance and nail pull-out resistance and also a good dimensional stability results at high temperatures. The spunbonded material is therefore particularly suitable as a support web for bitumenised roof truss webs.

Description

Die Erfindung betrifft eine Trägerbahn für Dachunterspannbahnen sowie eine mit dieser Trägerbahn hergestellte Dachunterspannbahn.The invention relates to a carrier sheet for roofing membranes and a roofing membrane produced with this carrier membrane.

Dachunterspannbahnen werden bekanntlich unter den Ziegeln oder Schieferplatten von Steildächern oder dergl. als Schutz gegen Flugschnee, Staub usw. angebracht. Dachunterspannbahnen sollen einerseits wasserundurchlässig und andererseits luft- und dampfdurchlässig sein. Außerdem sollen sie eine hohe Festigkeit, insbesondere Weiterreißfestigkeit, haben, um z.B. bei einem Unfall das Gewicht des Dachdeckers aufnehmen zu können.Roofing membranes are known to be installed under the tiles or slate slabs of steep roofs or the like as protection against flying snow, dust etc. Roofing underlays should on the one hand be impermeable to water and on the other hand should be permeable to air and steam. In addition, they should have high strength, in particular tear resistance, e.g. to be able to absorb the weight of the roofer in the event of an accident.

Weit verbreitet sind Dachunterspannbahnen aus gitterbewehrten Folien. Diese Folien weisen zwar eine gute Reißfestigkeit auf; unbefriedigend bleibt aber die Weiterreißfestigkeit und häufig auch die Dampfdurchlässigkeit.Roofing underlays made of grid-reinforced foils are widespread. Although these films have good tear strength; However, the tear resistance and often also the vapor permeability remain unsatisfactory.

Aus der DE-OS 34 25 794 ist eine Dachunterspannbahn aus einer Polyurethanfolie bekannt, die mit einer Vliesschicht aus z.B. Polyester belegt ist. In der Beschreibungseinleitung dieser Offenlegungsschrift wird eine Unterspannbahn erwähnt, die aus hochreißfestem Polyester-Spinnvlies besteht und mit einer wasserabweisenden und atmungsaktiven Spezialbeschichtung in Form einer Paste versehen ist. Über den Aufbau der verwendeten Polyester-Vliesstoffe läßt sich dieser Veröffentlichung jedoch nichts entnehmen.From DE-OS 34 25 794 a roofing membrane made of a polyurethane film is known, which is covered with a non-woven layer of e.g. Polyester is covered. In the introduction to the description of this laid-open specification, a sarking membrane is mentioned which consists of highly tear-resistant polyester spunbonded fabric and is provided with a water-repellent and breathable special coating in the form of a paste. However, nothing can be found in this publication about the structure of the polyester nonwovens used.

Die EP-PS 0027750 beschreibt eine Trägerbahn für eine Dachunterspannbahn, die aus einem Faservlies aus Polypropylen, Polyethylen, Polyester oder Polyvinyl besteht und ein Flächengewicht zwischen 85 und 200 g/m² aufweist. Zur Herstellung der Dachunterspannbahn wird das Faservlies auf einer Seite mit einer Bitumenschicht versehen, indem das Faservlies mit dem Bitumen warm bestrichen und dann einer Abkühlung unterzogen wird, um Mikrolöcher oder Mikrorisse hervorzurufen. Auch dieser Druckschrift läßt sich jedoch hinsichtlich des Aufbaus des Faservlieses - abgesehen von dem verwendeten Fasermaterial und dem Flächengewicht - nichts entnehmen.EP-PS 0027750 describes a carrier web for a roofing membrane which consists of a non-woven fabric made of polypropylene, polyethylene, polyester or polyvinyl and has a basis weight between 85 and 200 g / m². The fiber fleece is used to manufacture the roofing membrane Provide a bitumen layer on one side by warm coating the nonwoven with the bitumen and then cooling to cause micro-holes or micro-cracks. This publication, however, also shows nothing regarding the structure of the nonwoven fabric - apart from the fiber material used and the weight per unit area.

Der Erfindung liegt die Aufgabe zugrunde, eine Trägerbahn für Dachunterspannbahnen zu schaffen, die für eine hohe Festigkeit, insbesondere Weiterreißfestigkeit der Dachunterspannbahn sorgt und die eine gute Dimensionsstabilität selbst bei hohen Verarbeitungstemperaturen besitzt.The invention has for its object to provide a carrier sheet for roofing underlay, which ensures high strength, in particular tear resistance of the roofing underlay and which has good dimensional stability even at high processing temperatures.

Ausgehend von einer Trägerbahn für Dachunterspannbahnen, die aus einem Spinnvlies aus Polyester, insbesondere Polyethylenterephthalat-Filamenten besteht, wird diese Aufgabe erfindungsgemäß dadurch gelöst, daß das Spinnvlies ein Flächengewicht von 50 bis 100 g/m² bei einem Einzeltiter der Filamente von 1 bis 8 dtex aufweist und durch einen Schmelzbinder endverfestigt ist.Starting from a carrier web for roofing underlays, which consists of a spunbond made of polyester, in particular polyethylene terephthalate filaments, this object is achieved according to the invention in that the spunbonded fabric has a basis weight of 50 to 100 g / m 2 with a single titer of the filaments of 1 to 8 dtex and is solidified by a melt binder.

Wie in Versuchen festgestellt wurde, erhält die Trägerbahn aufgrund des erfindungsgemäßen Aufbaus des Spinnvlieses eine gute Dimensionsstabilität selbst bei hohen Verarbeitungstemperaturen. Dies ist für die Herstellung von Dachunterspannbahnen von Bedeutung, bei denen die Trägerbahn mit Bitumen versehen wird. Insbesondere beim Tränken der Trägerbahn mit Bitumen herrschen Verarbeitungstemperaturen von 160 bis 180°C. Wie sich gezeigt hat, besitzt die erfindungsgemäß ausgebildete Trägerbahn selbst bei diesen hohen Temperaturen eine gute Dimensionsstabilität, was für die Verarbeitung der Trägerbahn von wesentlicher Bedeutung ist. Trägerbahnen aus Polypropylen, das einen Erweichungspunkt von ca. 156°C hat, sind dagegen beispielsweise für eine Bituminierung weniger geeignet.As was found in tests, the carrier web obtains good dimensional stability even at high processing temperatures due to the structure of the spunbonded fabric according to the invention. This is important for the production of roofing underlays in which the carrier sheet is provided with bitumen. Processing temperatures of 160 to 180 ° C prevail, especially when impregnating the carrier sheet with bitumen. As has been shown, the carrier web designed according to the invention has good dimensional stability even at these high temperatures, which is essential for processing the carrier web. Carrier webs out In contrast, polypropylene, which has a softening point of approx. 156 ° C, is less suitable for bituminization, for example.

Wie bereits erwähnt, wird die Trägerbahn zur Herstellung einer Dachunterspannbahn vorzugsweise in Verbindung mit Bitumen verwendet. Hierbei wird die Trägerbahn vorzugsweise mit Bitumen getränkt; stattdessen kann die Trägerbahn auch mit Bitumen beschichtet werden, wobei sie vorzugsweise beidseitig mit Bitumen beschichtet wird.As already mentioned, the carrier web is preferably used in connection with bitumen to produce a roofing underlay. The carrier web is preferably impregnated with bitumen; instead, the carrier web can also be coated with bitumen, it preferably being coated on both sides with bitumen.

Bei der erfindungsgemäß ausgebildeten Trägerbahn ergeben sich eine Weiterreißfestigkeit in der Größenordnung von 20 N bis 80 N, eine Nagelausreißfestigkeit von 50 N bis 180 N und eine Perforationsstabilität von 400 N bis 1200 N. Hierbei wird die Weiterreißfestigkeit nach DIN 53356, die Nagelausreißfestigkeit nach UEATC-Norm und die Perforationsstabilität nach DIN 54307 bestimmt.The carrier web designed according to the invention has a tear resistance of the order of 20 N to 80 N, a nail tear resistance of 50 N to 180 N and a perforation stability of 400 N to 1200 N. The tear resistance according to DIN 53356, the nail tear resistance according to UEATC- Norm and the perforation stability determined according to DIN 54307.

Statt Bitumen könnte jedoch auch ein anderes Material, z.B. Polyethylen oder Polyvinylchlorid mit dem erfindungsgemäßen Spinnvlies verwendet werden.However, instead of bitumen, another material, e.g. Polyethylene or polyvinyl chloride can be used with the spunbonded fabric according to the invention.

Das geringe Flächengewicht des Spinnvlieses ist vorteilhaft im Hinblick auf die Dampfdurchlässigkeit sowie den Materialverbrauch. Vorzugsweise beträgt das Flächengewicht des Spinnvlieses 70 bis 90 g/m².The low basis weight of the spunbonded fabric is advantageous in terms of vapor permeability and material consumption. The basis weight of the spunbonded fabric is preferably 70 to 90 g / m 2.

Der feine Einzeltiter der Spinnvlies-Filamente ergibt eine gute Haftung des mit dem Spinnvlies verbundenen Materials, insbesondere des Bitumens, aufgrund der hohen spezifischen Oberfläche des Spinnvlieses. Vorzugsweise beträgt der Einzeltiter der Spinnvlies-Filamente 2 bis 5 dtex, insbesondere 4 dtex.The fine individual titer of the spunbonded filaments results in good adhesion of the material associated with the spunbonded nonwoven, in particular the bitumen, due to the high specific surface area of the spunbonded nonwoven. The individual titer of the spunbonded nonwoven filaments is preferably 2 to 5 dtex, in particular 4 dtex.

Als Schmelzbinder kommen insbesondere Polymere in Frage, deren Schmelzpunkt niedriger liegt als der Schmelzpunkt der das Spinnvlies bildenden - der sogenannten tragenden - Filamente.Particularly suitable melt binders are polymers whose melting point is lower than the melting point of the the spunbonding - the so-called supporting - filaments.

Zweckmäßigerweise liegt der Schmelzpunkt des Schmelzbinders 10°C, vorzugsweise 30°C unter dem Schmelzpunkt der tragenden Filamente.The melting point of the melt binder is expediently 10 ° C., preferably 30 ° C. below the melting point of the supporting filaments.

Besonders geeignete Schmelzbinder bestehen aus Polyestern, vorzugsweise Polybutylenterephthalat oder modifizierten Polyestern mit entsprechend abgesenktem Schmelzpunkt, vorzugsweise modifiziertem Polyethylenterephthalat.Particularly suitable melt binders consist of polyesters, preferably polybutylene terephthalate or modified polyesters with a correspondingly lowered melting point, preferably modified polyethylene terephthalate.

Der Schmelzbinder wird vorzugsweise in Faserform eingebracht. Die Verfestigung erfolgt durch eine Wärmebehandlung des Vlieses, insbesondere mittels Kalander, wobei dieser glatte oder profilierte Walzen, z.B. Prägewalzen mit Gravur, besitzen kann.
Die Verfestigung kann ausschließlich durch den Kalander erfolgen oder mittels Kalander (Vorverfestigung) und nachgeschalteter weiterer Wärmebehandlung, z.B. mittels Heißluft oder Strahlungsenergie.The melt binder is preferably introduced in fiber form. The bonding takes place by heat treatment of the fleece, in particular by means of a calender, which can have smooth or profiled rollers, for example embossing rollers with engraving.
The consolidation can be carried out exclusively by the calender or by means of calenders (pre-consolidation) and subsequent further heat treatment, for example by means of hot air or radiation energy.

Die oben genannten Schmelzbinder können besonders vorteilhaft in Form von Bindefilamenten dem Vlies bei der Herstellung, d.h. bei der Ablage der Filamente auf dem Transportband, zugemischt werden. Bei einer nachfolgenden Wärmebehandlung z.B. in Heißkalander, schmelzen die Bindefilamente ganz oder teilweise und bilden an dem Kreuzungspunkten der tragenden Filamente die gewünschten Bindepunkte (Bindesegel) aus.The melt binders mentioned above can be used particularly advantageously in the form of binding filaments in the nonwoven during manufacture, i.e. when depositing the filaments on the conveyor belt. In a subsequent heat treatment e.g. in hot calenders, the binding filaments melt completely or partially and form the desired binding points (binding sail) at the crossing points of the supporting filaments.

Der Binderanteil beträgt zweckmäßigerweise 5 bis 25 Gew.-%, vorzugsweise 10 bis 15 Gew.-%.The proportion of binder is advantageously 5 to 25% by weight, preferably 10 to 15% by weight.

Das folgende Beispiel erläutert die Erfindung:
Als Trägerbahn wurde ein Spinnvlies aus Polyethylenterephthalat-Filamenten mit einem Einzeltiter von 4 dtex und Bindefilamenten aus einem modifizierten Polyester mit einem Anteil von 9 % verwendet. Das Spinnvlies wurde durch Prägewalzen thermomechanisch vorverfestigt und anschließend durch Heißluft endverfestigt. Das Flächengewicht des Trägers betrug 100 g/m². Die Trägerbahn wurde dann in einer Dachbahnanlage bituminiert, beidseitig mit Bitumen beschichtet und besandet. Dabei fiel eine ausgezeichnete Dimensionsstabilität während des Verarbeitungsprozesses auf.The following example explains the invention:
A spunbonded nonwoven made of polyethylene terephthalate filaments with a single titer was used as the carrier web of 4 dtex and binding filaments made of a modified polyester with a share of 9%. The spunbonded fabric was thermomechanically pre-consolidated by embossing rollers and then finally consolidated by hot air. The basis weight of the support was 100 g / m². The carrier sheet was then bituminized in a roofing membrane system, coated on both sides with bitumen and sanded. An excellent dimensional stability during the processing process was noticed.

Die auf diese Weise hergestellte Dachunterspannbahn hatte folgende Eigenschaften:

Figure imgb0001
The roofing membrane produced in this way had the following properties:
Figure imgb0001

Claims (12)

Trägerbahn für Dachunterspannbahnen, die aus einem Spinnvlies aus Polyester-, insbesondere Polyethylenterephthalat-Filamenten besteht, dadurch gekennzeichnet, daß das Spinnvlies ein Flächengewicht von 50 bis 100 g/m² bei einem Einzeltiter der Filamente von 1 bis 8 dtex aufweist und durch einen Schmelzbinder verfestigt ist.Backing sheet for roofing underlays, which consists of a spunbonded nonwoven made of polyester, in particular polyethylene terephthalate filaments, characterized in that the spunbonded nonwoven has a basis weight of 50 to 100 g / m² with a single titer of the filaments of 1 to 8 dtex and is consolidated by a melt binder . Trägerbahn nach Anspruch 1, dadurch gekennzeichnet, daß das Flächengewicht des Spinnvlieses 70 bis 90 g/m² beträgt.Carrier web according to claim 1, characterized in that the basis weight of the spunbonded nonwoven is 70 to 90 g / m². Trägerbahn nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Einzeltiter der Spinnvlies-Filamente 2 bis 5 dtex beträgt.Carrier web according to claim 1 or 2, characterized in that the individual titer of the spunbonded filaments is 2 to 5 dtex. Trägerbahn nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schmelzbinder aus einem Polymer mit einem Schmelzpunkt, der niedriger liegt als der Schmelzpunkt der tragenden Filamente, besteht.Carrier web according to at least one of the preceding claims, characterized in that the melt binder consists of a polymer with a melting point which is lower than the melting point of the supporting filaments. Trägerbahn nach Anspruch 4, dadurch gekennzeichnet, daß der Schmelzpunkt des Schmelzbinders 10°C, vorzugsweise 30°C unter dem Schmelzpunkt der tragenden Filamente liegt.Carrier web according to claim 4, characterized in that the melting point of the melt binder is 10 ° C, preferably 30 ° C below the melting point of the supporting filaments. Trägerbahn nach mindestens einem der Ansprüche 4 und 5, dadurch gekennzeichnet, daß der Schmelzbinder aus Polyestern, vorzugsweise Polybutylenterephthalat oder modifizierten Polyestern mit entsprechend abgesenktem Schmelzpunkt, vorzugsweise modifiziertem Polyethylenterephthalat besteht.Carrier web according to at least one of claims 4 and 5, characterized in that the melt binder consists of polyesters, preferably polybutylene terephthalate or modified polyesters with a correspondingly lowered melting point, preferably modified polyethylene terephthalate. Trägerbahn nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß der Schmelzbinder in Form von Bindefilamenten vorliegt.Carrier web according to one of claims 4 to 6, characterized in that the melt binder is in the form of binding filaments. Trägerbahn nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Binderanteil 5 bis 25 Gew.-% beträgt.Carrier web according to at least one of the preceding claims, characterized in that the proportion of binder is 5 to 25% by weight. Trägerbahn nach Anspruch 5, dadurch gekennzeichnet, daß der Binderanteil 10 bis 15 Gew.-% beträgt.Carrier web according to Claim 5, characterized in that the proportion of binder is 10 to 15% by weight. Dachunterspannbahn mit einer Trägerbahn nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Trägerbahn mit Bitumen imprägniert oder beschichtet, insbesondere beidseitig beschichtet ist.Roofing underlay with a carrier web according to at least one of the preceding claims, characterized in that the carrier web is impregnated or coated with bitumen, in particular is coated on both sides. Verfahren zur Herstellung der Trägerbahn nach Anspruch 1 durch Herstellen eines Spinnvlieses aus Polyester-Filamenten in an sich bekannter Weise, dadurch gekennzeichnet, daß der Schmelzbinder in Faserform eingebracht wird und das Vlies durch eine Wärmebehandlung verfestigt wird.A process for producing the carrier web according to claim 1 by producing a spunbonded nonwoven from polyester filaments in a manner known per se, characterized in that the melt binder is introduced in the form of fibers and the nonwoven is solidified by heat treatment. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß die Verfestigung mittels Kalander (Vorverfestigung) und nachgeschalteter weiterer Wärmebehandlung erfolgt.A method according to claim 11, characterized in that the consolidation takes place by means of calenders (pre-consolidation) and subsequent further heat treatment.
EP19910103645 1990-03-14 1991-03-09 Support web for roof foundation webs Expired - Lifetime EP0446822B2 (en)

Applications Claiming Priority (2)

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DE4008043 1990-03-14
DE4008043A DE4008043A1 (en) 1990-03-14 1990-03-14 TRAILER RAIL FOR ROOF TENSION RAILWAYS

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EP0446822A1 true EP0446822A1 (en) 1991-09-18
EP0446822B1 EP0446822B1 (en) 1995-06-07
EP0446822B2 EP0446822B2 (en) 1999-06-16

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US (1) US5130178A (en)
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JP (1) JP3096311B2 (en)
AT (1) ATE123538T1 (en)
DE (2) DE4008043A1 (en)
DK (1) DK0446822T4 (en)
GR (1) GR3030982T3 (en)
IE (1) IE67658B1 (en)
PT (1) PT97025A (en)

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EP0594892A1 (en) * 1992-09-25 1994-05-04 CASA BERNARDO Ltda Reinforced 100% polyester material used as applicator for holding pest control agents and process for its manufacture
WO1996036778A1 (en) * 1995-05-15 1996-11-21 Paul Bauder Gmbh & Co. Casing and underlying strip with diffusion apertures
DE19618775A1 (en) * 1996-05-10 1997-11-13 Hoechst Trevira Gmbh & Co Kg Carrier insert, process for its production and its use
DE19620361A1 (en) * 1996-05-10 1997-11-13 Hoechst Trevira Gmbh & Co Kg Carrier insert, process for its production and its use
DE102006060241A1 (en) * 2006-12-20 2008-06-26 Johns Manville Europe Gmbh Supporting layer, useful in composite roofing or sealing sheets, is obtained by hydrodynamic consolidation of textile sheet containing reinforcement structure
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DE202009000393U1 (en) 2009-01-14 2009-03-19 Johns Manville Europe Gmbh concrete formwork
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DE102007060494A1 (en) 2007-12-14 2009-06-18 Johns Manville Europe Gmbh Backing insert, process for their preparation and their use
DE102008051430A1 (en) 2008-10-11 2010-04-15 Trevira Gmbh Superabsorbent bicomponent fiber
DE102008059129A1 (en) 2008-11-26 2010-05-27 Johns Manville Europe Gmbh Binder-solidified textile fabric, process for its production and its use
DE102008059128A1 (en) 2008-11-26 2010-05-27 Johns Manville Europe Gmbh Binder-solidified textile fabric, process for its production and its use
DE102009004573A1 (en) 2009-01-14 2010-07-15 Johns Manville Europe Gmbh Concrete formwork, process for their production and their use
DE102009004970A1 (en) 2009-01-14 2010-07-15 Johns Manville Europe Gmbh Mineral coated textile surfaces for wood-based materials
DE102009005587A1 (en) 2009-01-21 2010-07-22 Johns Manville Europe Gmbh Method for determining reference force of e.g. spunbonded fabric, utilized as carrier insert for producing roofing sheet, involves comparing reinforced planar structure exhibiting reference force with planar structure without reinforcement
DE102009022120A1 (en) 2009-05-20 2010-11-25 Johns Manville Europe Gmbh filter media
DE102009023737A1 (en) 2009-06-03 2010-12-09 Johns Manville Europe Gmbh Composite material useful as construction material to manufacture furniture and wall, ceiling and floor coverings, comprises carrier, and textile surface structure, which is laminated on one of the two sides of the carrier and has binder
EP2269814A1 (en) 2009-06-03 2011-01-05 Johns Manville Europe GmbH Printing of non-woven fabrics and their use in composite materials
EP2309046A1 (en) 2009-10-08 2011-04-13 Johns Manville Multilayer fabric materials for roofing applications
WO2011043937A1 (en) 2009-10-08 2011-04-14 Johns Manville Binder composition
DE202006021073U1 (en) 2006-12-20 2012-04-30 Johns Manville Europe Gmbh Backing insert and its use
EP2604322A2 (en) 2011-12-15 2013-06-19 Johns Manville Europe GmbH Multi-ply filter medium
DE102011121589A1 (en) 2011-12-20 2013-06-20 Johns Manville Europe Gmbh Binder-solidified textile fabric, process for its production and its use
EP2745907A2 (en) 2012-12-20 2014-06-25 Johns Manville Europe GmbH Filter medium
DE102014010332A1 (en) 2014-07-14 2016-01-14 Johns Manville Europe Gmbh Composite materials comprising honeycomb cores based on thermoplastic synthetic fiber webs
EP3086384A1 (en) 2015-04-23 2016-10-26 Johns Manville Europe GmbH Tubular bags of the cartridge belt type for lead-acid batteries made from a textile sheet fabric
DE102016015248A1 (en) 2016-12-21 2018-06-21 Johns Manville Europe Gmbh Highly efficient filter medium
EP3771483A1 (en) 2019-07-31 2021-02-03 Johns Manville Cleanable filter medium
EP4303353A1 (en) 2022-07-05 2024-01-10 Johns Manville Nonwoven material with improved md/cd ratio, method for its manufacture and its use

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Cited By (52)

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Publication number Priority date Publication date Assignee Title
EP0594892A1 (en) * 1992-09-25 1994-05-04 CASA BERNARDO Ltda Reinforced 100% polyester material used as applicator for holding pest control agents and process for its manufacture
WO1996036778A1 (en) * 1995-05-15 1996-11-21 Paul Bauder Gmbh & Co. Casing and underlying strip with diffusion apertures
DE19620361C5 (en) * 1996-05-10 2004-01-15 Johns Manville International, Inc., Denver Carrier insert and its use
DE19620361A1 (en) * 1996-05-10 1997-11-13 Hoechst Trevira Gmbh & Co Kg Carrier insert, process for its production and its use
DE19620361C2 (en) * 1996-05-10 1998-09-10 Hoechst Trevira Gmbh & Co Kg Carrier insert and its use
DE19618775A1 (en) * 1996-05-10 1997-11-13 Hoechst Trevira Gmbh & Co Kg Carrier insert, process for its production and its use
DE102006060241A1 (en) * 2006-12-20 2008-06-26 Johns Manville Europe Gmbh Supporting layer, useful in composite roofing or sealing sheets, is obtained by hydrodynamic consolidation of textile sheet containing reinforcement structure
DE202006021073U1 (en) 2006-12-20 2012-04-30 Johns Manville Europe Gmbh Backing insert and its use
DE102007008423A1 (en) 2007-02-21 2008-08-28 Johns Manville Europe Gmbh Making composite for use e.g. in furniture or floor covering, involves applying textile sheet containing a B-stage binder to one side of a support, applying functional material to the textile and then curing the binder
DE102007008424A1 (en) 2007-02-21 2008-08-28 Johns Manville Europe Gmbh Composite construction material, useful e.g. in furniture or wall coverings, is obtained by laminating textile sheet, containing B-stage binder and functional material, with support
DE102007012651A1 (en) 2007-03-16 2008-09-18 Johns Manville Europe Gmbh Manufacturing composite material, useful as construction material e.g. furniture, comprises supplying carrier, applying textile surface structure onto surface of carrier, laminating construction, and optionally applying protective layer
DE102007027299A1 (en) 2007-06-11 2008-12-24 Johns Manville Europe Gmbh filter media
EP2006009A2 (en) 2007-06-11 2008-12-24 Johns Manville Europe GmbH Filter medium
DE102007028531A1 (en) 2007-06-18 2008-12-24 Johns Manville Europe Gmbh Manufacturing composite material, useful as construction material e.g. furniture, comprises supplying carrier, applying textile surface structure onto surface of carrier, laminating construction, and optionally applying protective layer
DE102007060494A1 (en) 2007-12-14 2009-06-18 Johns Manville Europe Gmbh Backing insert, process for their preparation and their use
DE202008010258U1 (en) 2008-07-30 2008-10-30 Johns Manville, Denver Reinforcement insert and coated roofing membranes
EP2154281A2 (en) 2008-07-30 2010-02-17 Johns Manville Europe GmbH Base interlining and coated roofing membranes
DE102008051430A1 (en) 2008-10-11 2010-04-15 Trevira Gmbh Superabsorbent bicomponent fiber
DE202008017741U1 (en) 2008-10-11 2010-05-12 Trevira Gmbh Superabsorbent bicomponent fiber
EP2199333A1 (en) 2008-11-26 2010-06-23 Johns Manville Europe GmbH Binder-strengthened textile sheet, method for its production and application
DE102008059129A1 (en) 2008-11-26 2010-05-27 Johns Manville Europe Gmbh Binder-solidified textile fabric, process for its production and its use
DE102008059128A1 (en) 2008-11-26 2010-05-27 Johns Manville Europe Gmbh Binder-solidified textile fabric, process for its production and its use
EP2192153A2 (en) 2008-11-26 2010-06-02 Johns Manville Europe GmbH Binder-consolidated textile fabric, method for producing it, and use thereof
EP2208836A1 (en) 2009-01-14 2010-07-21 Johns Manville Europe GmbH Concrete forming board, method for its manufacture and application thereof
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DE102009004970A1 (en) 2009-01-14 2010-07-15 Johns Manville Europe Gmbh Mineral coated textile surfaces for wood-based materials
DE202009000539U1 (en) 2009-01-14 2009-04-02 Johns Manville Europe Gmbh Mineral coated textile surfaces for wood-based materials
EP2208614A1 (en) 2009-01-14 2010-07-21 Johns Manville Europe GmbH Mineral-coated textile surfaces for wood materials
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DE102009005587A1 (en) 2009-01-21 2010-07-22 Johns Manville Europe Gmbh Method for determining reference force of e.g. spunbonded fabric, utilized as carrier insert for producing roofing sheet, involves comparing reinforced planar structure exhibiting reference force with planar structure without reinforcement
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EP2309046A1 (en) 2009-10-08 2011-04-13 Johns Manville Multilayer fabric materials for roofing applications
WO2011043937A1 (en) 2009-10-08 2011-04-14 Johns Manville Binder composition
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DE102011121136A1 (en) 2011-12-15 2013-06-20 Johns Manville Europe Gmbh Multi-layer filter medium
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DE102014010332A1 (en) 2014-07-14 2016-01-14 Johns Manville Europe Gmbh Composite materials comprising honeycomb cores based on thermoplastic synthetic fiber webs
EP2974855A2 (en) 2014-07-14 2016-01-20 Johns Manville Europe GmbH Composite materials comprising honeycomb cores based on thermoplastic synthetic fiber spunbonded non-wovens
EP3086384A1 (en) 2015-04-23 2016-10-26 Johns Manville Europe GmbH Tubular bags of the cartridge belt type for lead-acid batteries made from a textile sheet fabric
DE102016015248A1 (en) 2016-12-21 2018-06-21 Johns Manville Europe Gmbh Highly efficient filter medium
WO2018114764A1 (en) 2016-12-21 2018-06-28 Johns Manville Europe Gmbh Highly efficient filter medium
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JPH04214474A (en) 1992-08-05
PT97025A (en) 1993-03-31
IE67658B1 (en) 1996-04-17
ATE123538T1 (en) 1995-06-15
EP0446822B1 (en) 1995-06-07
JP3096311B2 (en) 2000-10-10
EP0446822B2 (en) 1999-06-16
GR3030982T3 (en) 1999-12-31
DK0446822T3 (en) 1995-10-16
DE59105638D1 (en) 1995-07-13
DE4008043A1 (en) 1991-09-19
IE910844A1 (en) 1991-09-25
US5130178A (en) 1992-07-14
DK0446822T4 (en) 1999-11-22

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