EP4151812A1 - Tissu de renforcement pour membranes synthétiques - Google Patents

Tissu de renforcement pour membranes synthétiques Download PDF

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Publication number
EP4151812A1
EP4151812A1 EP22196462.0A EP22196462A EP4151812A1 EP 4151812 A1 EP4151812 A1 EP 4151812A1 EP 22196462 A EP22196462 A EP 22196462A EP 4151812 A1 EP4151812 A1 EP 4151812A1
Authority
EP
European Patent Office
Prior art keywords
fabric according
threads
weft threads
warp threads
reinforcement fabric
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.)
Withdrawn
Application number
EP22196462.0A
Other languages
German (de)
English (en)
Inventor
Willem VAN DAELE
Frank VERANNEMAN
Joost Wille
Bruno Devos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sioen Industries NV
Original Assignee
Sioen Industries NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sioen Industries NV filed Critical Sioen Industries NV
Publication of EP4151812A1 publication Critical patent/EP4151812A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/02—Roof covering by making use of flexible material, e.g. supplied in roll form of materials impregnated with sealing substances, e.g. roofing felt
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/006—With additional leno yarn
    • 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
    • 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
    • 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
    • D03D15/275—Carbon 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
    • D03D15/283—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 synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/10—Inorganic fibres based on non-oxides other than metals
    • D10B2101/12—Carbon; Pitch
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/06—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles

Definitions

  • the current invention embodies an improved fabric for reinforcing synthetic membranes for applications in roofing materials, such as reinforced roof films of materials such as PVC, TPO or EPDM.
  • the current invention also embodies a roofing materials that contains this type of fabric.
  • These types of reinforcement fabrics can be formed by a scrim (also called mesh) which may or may not be encapsulated in a thermoplastic or elastomer coating.
  • the fabric structure makes the encapsulation or coating process easier by providing greater interim spaces.
  • These types of reinforcement fabrics can be useful for roofing membranes, tents, tarpaulins, placards, banners, advertising signs and the like.
  • the current invention has the objective of overcome or at least limit the disadvantages described above and/or providing for general improvements.
  • One objective of the invention may be to provide a reinforcement fabric with improved tear resistance.
  • One further objective of the invention may be to provide a reinforcement fabric with equivalent tear resistance, preferably with better tear resistance, however.
  • an objective of the invention may be to reduce the possible uplift under the wind load.
  • this objective is achieved according to the invention with a reinforcement fabric that displays the technical features of one of the independent claims.
  • this is a reinforcement fabric for synthetic membranes for application in roofing.
  • the invention also comprises a coated reinforcement fabric or a roofing material including the former.
  • the invention comprises a reinforcement fabric for roofing materials, having a scrim, whereby the scrim is a woven mesh, whereby the open scrim has a number of bundles of weft threads located at a distance from each other in a first direction, and a number of bundles of warp threads at a distance from each other in a second direction, approximately perpendicular to the first direction, whereby the bundle of weft threads cross the bundle of warp threats at intersections.
  • Each intersection comprises or is made up of at least one pair of warp threads woven into at least two weft threads, whereby each pair of warp threads is woven into the bundles of weft threads in a half-cross leno weave, such that the warp threads only cross each other between adjacent bundles of weft threads.
  • half-cross leno weave refers to a leno weave of warp threads that only cross each other once between adjacent bundles of weft threads.
  • all warp threads are woven into the bundle of weft threads.
  • the weft threads are woven with the warp threads in a weave pattern, preferably in a linen weave, twill weave or satin weave.
  • the inventor has found that these types of combination of half-cross leno weave with a uniform weave, preferably a linen weave, twill weave or satin weave between the intersections of the leno weave has a reduced inweave compared to known weave structures, such as that published in US 10.072.419 .
  • the reduced inweave is achieved by the keeping the inweave as limited as possible, whereby the threads are lie stretched within the plane which reduces the extension with possible uplift. Through this, the uplift is reduced during wind load because the fabric is kept as flat as possible.
  • a fabric is created with a thickness that is the same as the thickness of the knitted scrims and is thus thinner than a standard woven fabric. So it can be used as a roofing material with fewer fixation points with the same resistance to wind load. This is, on the one hand, a cost saving on material and on the other hand, a cost saving of the required work time of the installer.
  • the aforementioned reinforcement fabric is an uncoated open scrim that is sufficiently bonded in another manner, such as through the weave pattern or using melt fibers.
  • Another embodiment which may occur in combination with the other aspects and embodiments of the invention described herein, is an aforementioned reinforcement fabric, whereby the at least two weft threads consist of two, three or four weft threads.
  • the at least two weft threads consist of two, three or four weft threads.
  • This type of composition of warp and weft threads provide a better tear resistance and in combination with a flatter structure, the best tear resistance is achieved.
  • a second embodiment which may occur in combination with the other aspects and embodiments of the invention that is described herein, is an aforementioned reinforcement fabric, whereby successive bundles of weft threads are located equidistant from each other and/or successive pairs of warp threads are located equidistant from each other.
  • the inventor has found that this type of fabric has a better tear resistance.
  • a third embodiment which may occur in combination with the other aspects and embodiments of the invention described herein, is an aforementioned reinforcement fabric, whereby the weft threads or the warp threads are at least partially made up of polyester, polypropylene, PP, polyvinyl alcohol, nylon, aramid, fiberglass, polyethylene naphthalate, PPS, basalt or carbon.
  • a fourth embodiment which may occur in combination with the other aspects and embodiments of the invention described herein, is an aforementioned reinforcement fabric, whereby the weft threads or the warp threads have a yarn titer of approximately 140 to 9900 dtex, preferably of approximately 280 to 2200 dtex. Warp threads and weft threads may vary in yarn titer. Either between the warp and weft within the thread bundle or between the weft and warp threads reciprocally.
  • the invention in a second aspect of the invention, which may occur in combination with the other aspects and embodiments of the invention described herein, the invention involves a coated fabric for roofing.
  • the coated fabric consists of an aforementioned reinforcement fabric and a coating consisting of a thermoplastic or elastomer material, whereby the coating is located along the length of the weft threads and the warp threads and is located between the weft and warp threads at the intersections.
  • a layer is applied in the form of a paste on one or both sides of the reinforcement fabric.
  • Direct coating is one of the most used techniques and is based on the application of one or more layers of thermoplastic or elastomer material on the reinforcement fabric using a scraper, knife-coating or kiss roll coating.
  • the coating can be applied in various ways, such as using extrusion coating, pultrusion or impregnation using padding.
  • One embodiment which may occur in combination with the other aspects and embodiments of the invention described herein, is an aforementioned coated fabric, whereby the coating has a weight between approximately 1 and 300% of the weight of the open scrim, preferably between approximately 20 and 100% of the weight of the open scrim.
  • the invention in a second aspect of the invention, which may occur in combination with the other aspects and embodiments of the invention described herein, the invention involves a coated fabric for roofing made up of an aforementioned reinforcement fabric.
  • Figure 1 shows an open schematic top view of a part of an open scrim for a reinforcement fabric according to one embodiment of the current invention.
  • the fabrics shown in the figures are reinforcement fabrics or elements thereof for use in roofing.
  • Figure 1 shows an open schematic top view of a reinforcement fabric.
  • the reinforcement fabric encompasses a coated fabric with a first and second side.
  • the coated fabric encompasses an open scrim 10, whereby the open scrim is a woven mesh, whereby the open scrim encompasses a number of bundles of weft threads located at a distance from each other 30, 50 in a first direction L and a number of bundles of warp threads 40, 60 located at a distance from each other in a second direction B, approximately perpendicular to the first direction, whereby the bundle of weft threads crosses the bundle of warp threads at intersections 20.
  • the coated fabric also encompasses a coating (not shown) of a thermoplastic or elastomer material, whereby the coating is located along the length of the weft threads and the warp threads and is located between the weft and warp threads at the intersections.
  • a coating (not shown) of a thermoplastic or elastomer material, whereby the coating is located along the length of the weft threads and the warp threads and is located between the weft and warp threads at the intersections.
  • Each intersection encompasses one pair of warp threads 41, 42 woven with three weft threads 31, 32, 33, whereby the pair of warp threads 41, 42 is woven with the bundle of weft threads 30 in a half-cross leno weave, such that the warp threads cross each other only once between adjacent bundles of weft threads.
  • Consecutive pairs of warp threads 41, 42, each in a half-cross leno weave, are located equidistant from each other. Through this, the corresponding consecutive intersections are equidistant from each other in the first direction L.
  • the three weft threads 31, 32, 33 are woven with the two warp threads 41, 42 in a smooth or linen weave pattern. Consecutive weft threads 31, 32, 33 corresponding to the same intersection are located equidistant from each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Woven Fabrics (AREA)
EP22196462.0A 2021-09-20 2022-09-20 Tissu de renforcement pour membranes synthétiques Withdrawn EP4151812A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20215738A BE1029772B1 (nl) 2021-09-20 2021-09-20 Versterkingsweefsel voor synthetische membranen

Publications (1)

Publication Number Publication Date
EP4151812A1 true EP4151812A1 (fr) 2023-03-22

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ID=77914204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22196462.0A Withdrawn EP4151812A1 (fr) 2021-09-20 2022-09-20 Tissu de renforcement pour membranes synthétiques

Country Status (2)

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EP (1) EP4151812A1 (fr)
BE (1) BE1029772B1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0873439A1 (fr) * 1995-12-28 1998-10-28 Klöcker-Entwicklungs-Gmbh Dispositif pour former une lisiere au point de gaze, notamment pour metier a tisser sans navette
US6818571B1 (en) * 1999-12-22 2004-11-16 Huesker Synthetic Gmbh Mesh fabric
EP1547460A1 (fr) * 2003-12-26 2005-06-29 Asahi Glass Green-Tech Company, Limited Construction avec une couverture à base de resine transparente
CA2574144A1 (fr) * 2007-01-16 2008-07-16 Saint-Gobain Technical Fabrics Canada, Ltd. Tissu ameliore avec epaisseur mise en valeur et methode de fabrication
US10072419B2 (en) 2015-01-21 2018-09-11 Milliken & Company Coated scrim reinforced roofing membrane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0873439A1 (fr) * 1995-12-28 1998-10-28 Klöcker-Entwicklungs-Gmbh Dispositif pour former une lisiere au point de gaze, notamment pour metier a tisser sans navette
US6818571B1 (en) * 1999-12-22 2004-11-16 Huesker Synthetic Gmbh Mesh fabric
EP1547460A1 (fr) * 2003-12-26 2005-06-29 Asahi Glass Green-Tech Company, Limited Construction avec une couverture à base de resine transparente
CA2574144A1 (fr) * 2007-01-16 2008-07-16 Saint-Gobain Technical Fabrics Canada, Ltd. Tissu ameliore avec epaisseur mise en valeur et methode de fabrication
US10072419B2 (en) 2015-01-21 2018-09-11 Milliken & Company Coated scrim reinforced roofing membrane

Also Published As

Publication number Publication date
BE1029772B1 (nl) 2023-04-17
BE1029772A1 (nl) 2023-04-12

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