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EP1046742A1 - Carrier for bituminous lengths - Google Patents

Carrier for bituminous lengths Download PDF

Info

Publication number
EP1046742A1
EP1046742A1 EP19990870074 EP99870074A EP1046742A1 EP 1046742 A1 EP1046742 A1 EP 1046742A1 EP 19990870074 EP19990870074 EP 19990870074 EP 99870074 A EP99870074 A EP 99870074A EP 1046742 A1 EP1046742 A1 EP 1046742A1
Authority
EP
European Patent Office
Prior art keywords
carrier
wires
filaments
bituminous
woven
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Withdrawn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
EP19990870074
Other languages
German (de)
French (fr)
Inventor
Paul Baert
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.)
Wattex NV
Original Assignee
Wattex 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 Wattex NV filed Critical Wattex NV
Priority to EP19990870074 priority Critical patent/EP1046742A1/en
Publication of EP1046742A1 publication Critical patent/EP1046742A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • 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
    • D04H3/10—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 yarns or filaments made mechanically
    • D04H3/105—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 yarns or filaments made mechanically by needling
    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/12—Glass fibres
    • 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
    • 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

Definitions

  • This invention relates to a carrier of the type to which felt and so-called non-woven products belong, more particularly, the invention concerns a reinforced carrier for bituminous roofing rolls.
  • Carriers for bituminous lengths must show a certain elasticity. By this, values are meant which both longitudinally and transversely are of the order of 30%.
  • the carrier serves as a carrier for bituminous roofing rolls, it is moved through a bitumen mass at a temperature of substantially 180°C. At such a temperature, and given the resistance exerted by the bituminous mass on the felt or non-woven the carrier is made of, the carrier is subjected to a certain elongation. In other words, it may be said that certain longitudinal stresses are built up in the carrier during this operation.
  • Bituminous roofing lengths which were placed on a roof may subsequently, at summer temperatures, become plastic to some extent. Because the bitumen becomes plastic, the carrier tends to return to its original state, which gives the impression that the carrier shrinks. This phenomenon may cause the appearance of problems on the roof.
  • the carrier shows at its surface reinforcement wires and/or filaments applied by needling.
  • above said wires or filaments are of mineral origin.
  • above said wires or filaments are glass wires or filaments.
  • the reinforced carrier for bituminous lengths according to the invention differ from the existing felt or non-woven carrier by the strong bond between the material it is made of and the wires or filaments applied for strengthening.
  • the wires and/or filaments used here are applied in the longitudinal direction of the carrier, and this by needling at the surface of the carrier.
  • the wires and/or filaments needled at the surface of the carrier have a small elongation after fracture.
  • this elongation is of the order of 3.5%.
  • the needling at the surface of the carrier offers the advantage that neither the structure of the wires and/or filaments, nor that of the carrier will be affected.
  • 6 glass wires and/or filaments of 68 Tex per 5 cm with a tensile strength of ⁇ 60 cN/Tex and an elongation after fracture of ⁇ 3.5% are used.
  • the number of glass wires and/or filaments utilised per 5 cm, as well as their tensile strength is calulated as a function of the resistance that the carrier undergoes in the finishing to roofing roll.
  • the carrier preferably six glass wires and/or filaments of 68 Tex per 5 cm, each showing a tensile strength of 60 cN/Tex and an elongation after fracture of ⁇ 3.5% are used. It will be clear, that the values indicated just now, are only mentioned by way of example, and that these may be widely altered as a function of the resistance that the finished product must offer.
  • the glass filaments used in this invention have a thickness of 68 Tex and a tensile strength of ⁇ 60 cN/Tex and an elongation after fracture of 3.5%.
  • the number of glass wires and/or filaments used per 5 cm, as well as their tensile strength, is of course calculated as a function of the resistance that the carrier undergoes in the finishing to roofing roll.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

The invention concerns a carrier of the type to which felt and non-woven materials, so-called non-woven products belong, more particularly reinforced carrier for bituminous roofing rolls, characterised in that, at its surface, it shows reinforcement wires and/or filaments applied by needling.

Description

  • This invention relates to a carrier of the type to which felt and so-called non-woven products belong, more particularly, the invention concerns a reinforced carrier for bituminous roofing rolls.
  • Carriers for bituminous lengths must show a certain elasticity. By this, values are meant which both longitudinally and transversely are of the order of 30%.
  • When the carrier serves as a carrier for bituminous roofing rolls, it is moved through a bitumen mass at a temperature of substantially 180°C. At such a temperature, and given the resistance exerted by the bituminous mass on the felt or non-woven the carrier is made of, the carrier is subjected to a certain elongation. In other words, it may be said that certain longitudinal stresses are built up in the carrier during this operation.
  • Bituminous roofing lengths which were placed on a roof, may subsequently, at summer temperatures, become plastic to some extent. Because the bitumen becomes plastic, the carrier tends to return to its original state, which gives the impression that the carrier shrinks. This phenomenon may cause the appearance of problems on the roof.
  • It is thus the aim of the invention to achieve a carrier which does not show the above mentioned flaws, or at least reduces them to an acceptable minimum.
  • In order to make this possible in accordance with the invention, the carrier shows at its surface reinforcement wires and/or filaments applied by needling.
  • In a first embodiment, above said wires or filaments are of mineral origin.
  • According to another possible embodiment, above said wires or filaments are glass wires or filaments.
  • Still according to the invention, above said wires or filaments, at a tensile strength of 300 N per 5 cm, show an elongation that is not greater than 8%.
  • Other details and advantages of the invention will show from the following description of a carrier for bituminous lengths according to the invention. This description is exclusively given as an example and does not limit the invention.
  • The reinforced carrier for bituminous lengths according to the invention differ from the existing felt or non-woven carrier by the strong bond between the material it is made of and the wires or filaments applied for strengthening. The wires and/or filaments used here, are applied in the longitudinal direction of the carrier, and this by needling at the surface of the carrier.
  • The wires and/or filaments needled at the surface of the carrier have a small elongation after fracture. When E-glass is used, this elongation is of the order of 3.5%.
  • By needling the wires or filaments, a good integration of the wires or filaments into the carrier is ensured, so that delamination of the wires or filaments should not be feared. This is a very important feature of the invention. It has already been proposed to provide parallel reinforcement wires in the direction in which the carried must be reinforced, between two layers of felt. An example thereof can be found in the patent application with reference no. W097/18364. As the sole possible connection between the reinforcement wires and the felt, this document refers to a method known as "heat shrinking". When applying such a method, it cannot be ensured that wires will not come loose, or that no delamination of the product will occur.
  • It has already been ascertained that upon "thermal movements" of the bituminous roofing roll, the wires and/or filaments, which, as set forth above, are attached to the two layers of the carrier by heat shrinking between two layers of felt or a similar method, cause the appearance of wrinkles between the wires.
  • Contrary to the process described in above said reference, the needling at the surface of the carrier, as proposed now, offers the advantage that neither the structure of the wires and/or filaments, nor that of the carrier will be affected. In the carrier according to the invention, for the reinforcement wires and/or filaments applied parallel to each other, 6 glass wires and/or filaments of 68 Tex per 5 cm with a tensile strength of ± 60 cN/Tex and an elongation after fracture of ± 3.5% are used. Obviously, the number of glass wires and/or filaments utilised per 5 cm, as well as their tensile strength, is calulated as a function of the resistance that the carrier undergoes in the finishing to roofing roll.
  • According to the invention, on the carrier preferably six glass wires and/or filaments of 68 Tex per 5 cm, each showing a tensile strength of 60 cN/Tex and an elongation after fracture of ± 3.5% are used. It will be clear, that the values indicated just now, are only mentioned by way of example, and that these may be widely altered as a function of the resistance that the finished product must offer.
  • The carriers according to the invention and the roofing lengths manufactured with them, will not show the tendency to form "wrinkles", contrary to the products obtained according to the already mentioned patent application WO97/18364. These wrinkles are the consequence of the differing reaction of the two different elements, namely:
  • a) the glass which is not sensitive to fluctuations of temperature and is little elastic, and
  • b) the two layers of non-woven between which the glass wires are encased.
  • Reinforcement wires needled to the surface of the carrier are integrated into the non-woven. This implies that upon small "longitudinal movements" (longitudinal stresses) which may still occur, the glass wires and/or filaments "sympathise" with the non-woven. Consequently, no "sliding" arises between the glass wires and/or filaments and the non-woven. According to the invention, the glass wires and/or filaments are now needled in such a way to the non-woven, that the intrinsic properties of the glass wires and/or filaments are not spoiled. In this invention, six glass wires and/or filaments per 5 cm are needled parallel to each other onto the non-woven carrier. The glass filaments used in this invention, have a thickness of 68 Tex and a tensile strength of ± 60 cN/Tex and an elongation after fracture of 3.5%. The number of glass wires and/or filaments used per 5 cm, as well as their tensile strength, is of course calculated as a function of the resistance that the carrier undergoes in the finishing to roofing roll.

Claims (4)

  1. Carrier of the type to which felt and non-woven materials, so-called non-woven products belong, more particularly reinforced carrier for bituminous roofing rolls, characterised in that, at its surface, it shows reinforcement wires and/or filaments applied by needling.
  2. Carrier according to claim 1, characterised in that above said wires or filaments are of mineral origin.
  3. Carrier according to claim 1, characterised in that above said wires or filaments are glass wires or filaments.
  4. Carrier according to any one of claims 1-3, characterised in that above said wires or filaments show an elongation that is not greater than 8% at a tensile strength of 300 N per 5 cm.
EP19990870074 1999-04-23 1999-04-23 Carrier for bituminous lengths Withdrawn EP1046742A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990870074 EP1046742A1 (en) 1999-04-23 1999-04-23 Carrier for bituminous lengths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19990870074 EP1046742A1 (en) 1999-04-23 1999-04-23 Carrier for bituminous lengths

Publications (1)

Publication Number Publication Date
EP1046742A1 true EP1046742A1 (en) 2000-10-25

Family

ID=8243819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990870074 Withdrawn EP1046742A1 (en) 1999-04-23 1999-04-23 Carrier for bituminous lengths

Country Status (1)

Country Link
EP (1) EP1046742A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019192948A1 (en) 2018-04-03 2019-10-10 Politex S.A.S. Di Freudenberg, Politex S.R.L. Reinforced nonwoven

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044146A (en) * 1958-10-27 1962-07-17 Owens Corning Fiberglass Corp Composite fibrous glass bodies
US3856602A (en) * 1971-01-12 1974-12-24 Breveteam Sa Method of producing non-woven textile fiber products having a relief-like structure
US4576858A (en) * 1984-04-06 1986-03-18 Establissements Les Fils D'auguste Chomarat Et Cie Material based on a non-woven textile lap which may be used as reinforcement for impermeable coverings
US4755423A (en) * 1986-02-22 1988-07-05 Hoechst Aktiengesellschaft Laminate
WO1990015181A1 (en) * 1989-06-05 1990-12-13 Oy Scanwoven Ab Flexible base web for a construction covering, and a construction covering manufactured from said web
US5047276A (en) * 1987-11-03 1991-09-10 Etablissements Les Fils D'auguste Chomarat Et Cie Multilayered textile complex based on fibrous webs having different characteristics
US5175042A (en) * 1989-06-16 1992-12-29 Establissements Les Fils D'auguste Chomarat Et Cie Multilayer textile composites based on fibrous sheets having different characteristics
EP0667427A1 (en) * 1994-02-10 1995-08-16 Freudenberg Spunweb S.A. Method of manufacturing a two-layer textile reinforcement for the realisation of impervious bituminous roof coverings, and textile reinforcement obtained thereby
WO1998029591A1 (en) * 1996-12-30 1998-07-09 Wattex Process for manufacturing a band-shaped non-woven product with increased tensile strength
EP0900869A2 (en) * 1997-09-05 1999-03-10 Fleissner GmbH & Co. Maschinenfabrik Process of manufacturing a hydroentangled nonwoven web, fabric and linning made therefrom

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044146A (en) * 1958-10-27 1962-07-17 Owens Corning Fiberglass Corp Composite fibrous glass bodies
US3856602A (en) * 1971-01-12 1974-12-24 Breveteam Sa Method of producing non-woven textile fiber products having a relief-like structure
US4576858A (en) * 1984-04-06 1986-03-18 Establissements Les Fils D'auguste Chomarat Et Cie Material based on a non-woven textile lap which may be used as reinforcement for impermeable coverings
US4755423A (en) * 1986-02-22 1988-07-05 Hoechst Aktiengesellschaft Laminate
US5047276A (en) * 1987-11-03 1991-09-10 Etablissements Les Fils D'auguste Chomarat Et Cie Multilayered textile complex based on fibrous webs having different characteristics
WO1990015181A1 (en) * 1989-06-05 1990-12-13 Oy Scanwoven Ab Flexible base web for a construction covering, and a construction covering manufactured from said web
US5175042A (en) * 1989-06-16 1992-12-29 Establissements Les Fils D'auguste Chomarat Et Cie Multilayer textile composites based on fibrous sheets having different characteristics
EP0667427A1 (en) * 1994-02-10 1995-08-16 Freudenberg Spunweb S.A. Method of manufacturing a two-layer textile reinforcement for the realisation of impervious bituminous roof coverings, and textile reinforcement obtained thereby
WO1998029591A1 (en) * 1996-12-30 1998-07-09 Wattex Process for manufacturing a band-shaped non-woven product with increased tensile strength
EP0900869A2 (en) * 1997-09-05 1999-03-10 Fleissner GmbH & Co. Maschinenfabrik Process of manufacturing a hydroentangled nonwoven web, fabric and linning made therefrom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019192948A1 (en) 2018-04-03 2019-10-10 Politex S.A.S. Di Freudenberg, Politex S.R.L. Reinforced nonwoven

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