Classifications

• • 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
• • 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
  • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
  • D04H1/4209—Inorganic fibres
  • D04H1/4218—Glass 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
  • D04H13/00—Other non-woven fabrics
• • 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
  • D04H5/02—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
  • D04H5/03—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 by fluid jet
• • 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

Definitions

• the present invention relates to a new type of material based on a nonwoven textile web usable as reinforcement for waterproofing coatings consisting of a support embedded in a bitumen composition.
• a nonwoven textile web usable as reinforcement for waterproofing coatings consisting of a support embedded in a bitumen composition.
• the invention will be described for such an application, but it is obvious that this is not limiting and that, possibly, such a material could be used in other applications, for example as a support for coating or reinforcing reinforcement of resin-based laminated articles.
• Sealing screeds made of a textile reinforcement printed with bitumen are well-known articles and are used in many fields, in particular in the building industry.
• the invention therefore relates to a material which can be used for a reinforcement of bituminous waterproofing coatings, said material being of the type constituted by a nonwoven fibrous sheet associated with a textile grid and it is characterized by the fact that the textile grid is embedded inside the fibrous structure whose fibers are entangled through the interstices of the grid and protruding on each side of the latter.
• the connection between the fibrous structure and the reinforcing grid is obtained mechanically, by entanglement and not by gluing as in most of the previous solutions.
• the reinforcing grid and the fibrous structure entangled with said grid can be based either on textile materials of the same kind, or based on textile materials of different nature.
• the grid possibly also being based on glass fibers, polyester, a mixture of these fibers.
• it could also be envisaged to incorporate into the fibrous structure fibers having characteristics capable of being revealed during a subsequent treatment (for example of bonding properties which can be revealed by heat treatment).
• the invention also relates to a process allowing the production of such materials, this process consisting in superimposing a textile grid (woven or non-woven) with a non-woven fibrous sheet, produced by dry process (carding in particular), the process according to the invention characterized by the fact that the complex thus formed is subjected to the action of jets of fluid (air or water) acting on the superposed materials at least on the side of the nonwoven fibrous web, the jets entraining the fibers of this sheet across the grid and distributing them on either side of the latter.
• this process consisting in superimposing a textile grid (woven or non-woven) with a non-woven fibrous sheet, produced by dry process (carding in particular), the process according to the invention characterized by the fact that the complex thus formed is subjected to the action of jets of fluid (air or water) acting on the superposed materials at least on the side of the nonwoven fibrous web, the jets entraining the fibers of this sheet across the grid and distributing them on either side of the latter.
• a material according to the invention is produced from the following components: - for the textile grid: . grid based on glass strands (silionne) comprising four strands and four wefts per centimeter, each strand having a title of 51 Tex; . weight per m2: 50 g, .
• this grid is a non-woven grid obtained in a conventional manner, the warp and weft threads being linked together by an adhesive of the styrene / butadiene type at a rate of 10 to 15 g / m2;
• - for the fibrous structure polyester fleece obtained by carding from 5 denier fibers - 50 mm cut weighing 150 g / m2.
• the fibrous structure based on polyester fibers is intimately entangled with the textile grid by subjecting the two superimposed materials to the action of jets of fluid (water) acting on the polyester web.
• the association of the two layers is carried out, for example, on a conventional type of material such as that marketed by the company "HONEYCOMB SYSTEMS, INC” commonly designated by technicians by the expression “hydraulic intermixing”.
• a complex according to the invention is produced from a grid and a veil of fibers similar to Example 1 but, when the entanglement is produced, the grid based on glass threads is inserted between two veils based on polyester fibers, the assembly being subjected to the action of jets of fluid on the two opposite faces.
• a complex is obtained in which the glass sheet is embedded inside the fibrous structure based on polyester fibers, the latter being intimately entangled, covering the grid, and being distributed on either side of the latter. regularly.
• a complex is produced in accordance with the invention by associating with a glass grid of the type of examples 1 and 2 one or two veils based on glass fibers having a length of 50 mm and a diameter of 14 microns and weighing 50 g / m2.
• All the materials described above can be easily stored and handled and, after coating with a layer of bitumen, make it possible to obtain complexes having excellent characteristics of dimensional stability and resistance to static and dynamic punching.
• the fibers being oriented in all directions and over the entire thickness of the complex, this facilitates impregnation with bitumen or resin in the case of laminates, and gives a very homogeneous finished material.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Nonwoven Fabrics (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=9349896

Family Applications (1)

Country Status (4)

Cited By (6)

Families Citing this family (5)

Citations (5)

• 1987
  • 1987-04-03 FR FR8704915A patent/FR2613383B1/fr not_active Expired
• 1988
  • 1988-03-30 FI FI881510A patent/FI881510L/fi not_active IP Right Cessation
  • 1988-04-01 DE DE8888420110T patent/DE3863221D1/de not_active Expired - Lifetime
  • 1988-04-01 EP EP88420110A patent/EP0285533B1/de not_active Expired - Lifetime

Patent Citations (5)

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