EP0285533B1 - Material based on a non-woven textile fibre web for use as a reinforcing structure for watertight coatings - Google Patents

Material based on a non-woven textile fibre web for use as a reinforcing structure for watertight coatings Download PDF

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Publication number
EP0285533B1
EP0285533B1 EP88420110A EP88420110A EP0285533B1 EP 0285533 B1 EP0285533 B1 EP 0285533B1 EP 88420110 A EP88420110 A EP 88420110A EP 88420110 A EP88420110 A EP 88420110A EP 0285533 B1 EP0285533 B1 EP 0285533B1
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EP
European Patent Office
Prior art keywords
grid
fibers
fact
material according
textile
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Expired - Lifetime
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EP88420110A
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German (de)
French (fr)
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EP0285533A1 (en
Inventor
Gilbert Chomarat
André Fourezon
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Fils dAuguste Chomarat et Cie SA
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Fils dAuguste Chomarat et Cie SA
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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 based on a nonwoven textile web usable in particular as a reinforcement for sealing coatings, said material being of the type constituted by a fibrous web 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 said grid and protrude on each side of the latter, the entanglement of fibers through the reinforcing grid being obtained by the action of jets of fluid (air or water) which entrain the fibers through the grid and distribute them on either side of the latter without damaging it.
  • 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 may also be based on glass fibers, polyester, a mixture of these fibers.
  • 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 web, 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 tablecloth through the grid and distributing them on either side of the latter.
  • 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.

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

Description

La présente invention concerne un nouveau type de matériau à base d'une nappe textile non tissée utilisable comme armature de renforcement de revêtements d'étanchéité constitué d'un support noyé dans une composition de bitume. Dans la suite de la description, l'invention sera décrite pour une telle application, mais il est évident que ceci n'est pas limitatif et qu'éventuellement, un tel matériau pourrait être utilisé dans d'autres applications, par exemple comme support d'enduction ou armature de renforcement d'articles stratifiés à base de résine.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. In the following description, 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.

Les chapes d'étanchéité constituées d'une armature textile imprimée de bitume sont des articles bien connus et sont utilisées dans de nombreux domaines, notamment dans l'industrie du bâtiment.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.

Pour réaliser de telles chapes, on a proposé pendant fort longtemps d'utiliser comme armature des tissus à contexture lâche, notamment à base de fils de verre (silionne).To make such screeds, it has been proposed for a long time to use as a reinforcement fabrics with loose texture, in particular based on glass strands (silionne).

Il a également aussi été envisagé d'utiliser des feutres à base de fibres de verre, de réaliser des complexes non tissés/tissus et/ou d'associer des nappes à base de matières textiles différentes, par exemple un non tissé polyester et un voile de fibres de verre. Ces réalisations de tels complexes permettent d'améliorer notablement les caractéristiques mécaniques que confère l'armature au matériau terminé, notamment en ce qui a trait à la stabilité dimensionnelle et à la résistance au poinçonnement tant statique que dynamique, le principal problème qui se pose étant celui de la liaison des différentes couches textiles entre elles. A ce jour, les principales propositions faites pour réaliser cette liaison consistent à associer les différentes couches entre elles par collage, par couture-tricotage mais présentent cependant comme inconvénient d'être délicates à réaliser et conduisent à des articles qui manquent d'homogénéité étant donné que les différentes couches de matière restent séparées les unes des autres.It has also been envisaged to use felts based on glass fibers, to make nonwoven / fabric complexes and / or to combine tablecloths based on different textile materials, for example a polyester nonwoven and a veil. glass fibers. These achievements of such complexes make it possible to significantly improve the mechanical characteristics which the reinforcement gives to the finished material, in particular with regard to dimensional stability and resistance. both static and dynamic punching, the main problem being that of the connection of the different textile layers together. To date, the main proposals made to achieve this connection consist in associating the different layers with one another by gluing, by sewing-knitting but, however, have the drawback of being difficult to produce and lead to articles which lack homogeneity given that the different layers of material remain separate from each other.

Récemment, dans son brevet français 2 562 472 (correspondant au brevet US 4 576 858), le Demandeur a proposé un nouveau type de matériau qui permet de résoudre ce problème d'homogénéité par le fait que les fibres des différentes couches de matière sont intimement mélangées les unes aux autres et liées mécaniquement entre elles, ce matériau étant, d'une manière générale, obtenu en réalisant un aiguilletage des différentes couches de matières fibreuses. Une telle solution présente de très nombreux avantages et permet de réaliser des complexes multicouches divers, tels que par exemple des complexes constitués de fibres de verre et de fibres de polyester, éventuellement combinés à des éléments additionnels de renforcement, tels que notamment grilles non tissées, films...Recently, in its French patent 2,562,472 (corresponding to US patent 4,576,858), the Applicant proposed a new type of material which makes it possible to solve this problem of homogeneity by the fact that the fibers of the different layers of material are intimately mixed together and mechanically bonded together, this material being generally obtained by needling the different layers of fibrous materials. Such a solution has numerous advantages and makes it possible to produce various multilayer complexes, such as for example complexes made of glass fibers and polyester fibers, possibly combined with additional reinforcing elements, such as in particular non-woven grids, movies...

Il a été cependant constaté que lorsque l'on souhaitait associer aux nappes fibreuses de tels renforts additionnels et plus particulièrement une grille non tissée, que la réalisation de l'opération d'aiguilletage pouvait entraîner une détérioration de ce renfort.However, it has been observed that when it was wished to associate with the fibrous plies such additional reinforcements and more particularly a nonwoven grid, that the carrying out of the needling operation could lead to a deterioration of this reinforcement.

Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, un nouveau type de complexe fibreux qui, non seulement permet d'obtenir les caractéristiques souhaitées pour des revêtements d'étanchéité à base de bitume et plus particulièrement des revêtements monocouche mais qui, par ailleurs, peut être produit à grande vitesse, est facile à stocker et manipuler, présente une très grande stabilité dimensionnelle et une excellente résistance au poinçonnement, tant dynamique que statique.Now we have found, and this is the subject of the present invention, a new type of fibrous complex which not only makes it possible to obtain the desired characteristics for bitumen-based waterproofing coatings and more particularly monolayer coatings but which, moreover, can be produced at high speed, are easy to store and handle, have very high dimensional stability and excellent punching resistance, both dynamic and static.

D'une manière générale, l'invention concerne donc un matériau à base d'une nappe textile non tissée utilisable notamment comme armature de renforcement de revêtements d'étanchéité, ledit matériau étant du type constitué par une nappe fibreuse associée à une grille textile, et il se caractérise par le fait que la grille textile est noyée à l'intérieur de la structure fibreuse dont les fibres sont enchevêtrées au travers des interstices de ladite grille et dépassent de chaque côté de cette dernière, l'enchevêtrement des fibres au travers de la grille de renfort étant obtenu par l'action de jets de fluide (air ou eau) qui entraînent les fibres au travers de la grille et les répartissent de part et d'autre de cette dernière sans la détériorer. En d'autres termes, dans le complexe conforme à l'invention, la liaison structure fibreuse/grille de renforcement est obtenue mécaniquement, par enchevêtrement et non pas par collage comme dans la plupart des solutions antérieures.In general, the invention therefore relates to a material based on a nonwoven textile web usable in particular as a reinforcement for sealing coatings, said material being of the type constituted by a fibrous web 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 said grid and protrude on each side of the latter, the entanglement of fibers through the reinforcing grid being obtained by the action of jets of fluid (air or water) which entrain the fibers through the grid and distribute them on either side of the latter without damaging it. In other words, in the complex according to the invention, 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.

Dans le matériau conforme à l'invention, la grille de renforcement et la structure fibreuse enchevêtrée avec ladite grille peuvent être à base soit de matières textiles de même nature, soit à base de matières textiles de nature différente. Par exemple, il est possible de réaliser un matériau conforme à l'invention contenant tout type de matières textiles combinées entre elles, la grille pouvant être à base également de fibres de verre, de polyester, d'un mélange de ces fibres. Par ailleurs, il pourrait être également envisagé d'incorporer à la structure fibreuse des fibres présentant des caractéristiques susceptibles d'être révélées lors d'un traitement ultérieur (par exemple de propriétés de collage pouvant être révélées par traitement thermique).In the material according to the invention, 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. For example, it is possible to produce a material according to the invention containing any type of textile materials combined together, the grid may also be based on glass fibers, polyester, a mixture of these fibers. Otherwise, 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).

L'invention concerne également un procédé permettant la réalisation de tels matériaux, ce procédé consistant à superposer une grille textile (tissée ou non tissée) avec une nappe fibreuse non tissée, réalisée par voie sèche (cardage notamment), le procédé selon l'invention se caractérisant par le fait que l'on soumet le complexe ainsi formé à l'action de jets de fluide (air ou eau) agissant sur les matériaux superposés au moins du côté de la nappe fibreuse non tissée, les jets entraînant les fibres de cette nappe au travers de la grille et les répartissant de part et d'autre de cette dernière. S'il est possible de réaliser un complexe conforme à l'invention en ne soumettant les composants élémentaires (grilles de renforcement ou nappes fibreuses) à l'action d'une seule série de jets, il est cependant préférable, après réalisation d'un premier traitement d'emmêlement, de soumettre le complexe à un second traitement au moyen de jets de fluide agissant alors sur la face opposée au premier traitement.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 web, 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 tablecloth through the grid and distributing them on either side of the latter. If it is possible to produce a complex in accordance with the invention by not subjecting the elementary components (reinforcement grids or fibrous sheets) to the action of a single series of jets, it is however preferable, after completion of a first entanglement treatment, subjecting the complex to a second treatment by means of jets of fluid then acting on the face opposite to the first treatment.

Lorsque l'on réalise un matériau conforme à l'invention en superposant une nappe fibreuse non tissée de part et d'autre de la grille textile, l'action des jets de fluide devra, bien entendu, être réalisée sur chacune des faces fibreuses.When a material according to the invention is produced by superimposing a nonwoven fibrous sheet on either side of the textile grid, the action of the fluid jets must, of course, be carried out on each of the fibrous faces.

L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce aux exemples de réalisation donnés ci-après à titre indicatif mais non limitatif.The invention and the advantages which it brings will however be better understood thanks to the exemplary embodiments given below for information but not limitation.

Exemple 1:Example 1:

On réalise un matériau conforme à l'invention à partir des composants suivants:

  • pour la grille textile:
    • · grille à base de fils de verre (silionne) comportant quatre fils et quatre trames par centimètre, chaque fil ayant un titre de 51 Tex;
    • · poids au m²: 50 g,
    • · cette grille est une grille non tissée obtenue de manière conventionnelle, les fils de chaîne et de trame étant liés entre eux par une colle du type styrène/butadiène à raison de 10 à 15 g/m2;
  • pour la structure fibreuse:
    voile de polyester obtenu par cardage à partir de fibres de 5 deniers _ coupe 50 mm pesant 150 g/m2.
A material according to the invention is produced from the following components:
  • for the textile grid:
    • · Grid based on glass threads (silionne) comprising four threads and four wefts per centimeter, each thread 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 veil obtained by carding from 5 denier fibers _ 50 mm cut weighing 150 g / m2.

Conformément à l'invention, la structure fibreuse à base de fibres de polyester est enchevêtrée de manière intime avec la grille textile en soumettant les deux matières superposées à l'action de jets de fluide (eau) agissant sur la nappe en polyester. L'association des deux nappes est réalisée, par exemple, sur un matériel de type conventionnel tel que celui commercialisé par la société "HONEYCOMB SYSTEMS, INC" communément désigné par les techniciens par l'expression "entremellement hydraulique".According to the invention, 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".

On constate, qu'en procédant de cette manière, on obtient un répartition homogène des fibres de la nappe polyester de part et d'autre de la grille de renforcement et ce, sans aucune détérioration de cette dernière. De préférence, après avoir réalisé un premier traitement au moyen de jets de fluide du côté de la nappe fibreuse non traitée, on effectue un second traitement sur l'autre face.It can be seen that, by proceeding in this way, a homogeneous distribution of the fibers of the polyester ply is obtained on either side of the reinforcement grid, without any deterioration of the latter. Preferably, after having carried out a first treatment by means of jets of fluid on the side of the untreated fibrous web, a second treatment is carried out on the other face.

Exemple 2:Example 2:

D'une manière similaire à l'exemple 1, on réalise un complexe conforme à l'invention à partir d'une grille et d'un voile de fibres similaire à l'exemple 1 mais, lors de la réalisation de l'enchevêtrement, on intercale la grille à base de fils de verre entre deux voiles à base de fibres de polyester, l'ensemble étant soumis à l'action de jets de fluide sur les deux faces opposées.In a similar manner to Example 1, 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.

On obtient un complexe dans lequel la nappe en verre est noyée à l'intérieur de la structure fibreuse à base de fibres polyester, ces dernières étant enchevêtrées de manière intime, recouvrant la grille, et étant réparties de part et d'autre de cette dernière de manière régulière.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.

Exemple 3:Example 3:

On réalise un complexe conforme à l'invention en associant à une grille en verre du type des exemples 1 et 2 un ou deux voiles à base de fibres de verre ayant une longueur de 50 mm et un diamètre de 14 microns et pesant 50 g/ m2.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.

Après action des jets de fluide sur la nappe fibreuse à base de verre, on obtient un complexe dans lequel la grille est parfaitement recouverte par des fibres de verre, enchevêtrées et liées entre elles.After the action of the jets of fluid on the fibrous sheet based on glass, a complex is obtained in which the grid is perfectly covered by glass fibers, tangled and bonded together.

Il a été constaté qu'il pouvait être avantageux, dans le cas d'une telle nappe fibreuse à base de fibres de verre, d'incorporer à cette nappe une certaine proportion (5 à 10% en poids par exemple), de fibres d'autres natures, par exemple des fibres polyester ou de polypropylène qui favorisent l'enchevêtrement.It has been found that it could be advantageous, in the case of such a fibrous sheet based on glass fibers, to incorporate into this sheet a certain proportion (5 to 10% by weight for example), of fibers d other natures, for example polyester or polypropylene fibers which promote entanglement.

Tous les matériaux décrits précédemment peuvent être facilement stockés et manipulés et, après revêtement d'une couche de bitume, permettent d'obtenir des complexes présentant d'excellentes caractéristiques de stabilité dimensionnelle et de résistance au poinçonnement statique et dynamique. De plus, les fibres étant orientées dans toutes les directions et sur toute l'épaisseur du complexe, cela facilite l'imprégnation par le bitume ou la résine dans le cas de stratifiés, et donne un matériau fini très homogène.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. In addition, 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.

Bien entendu, l'invention n'est pas limitée aux exemples de réalisation décrits précédemment mais elle en couvre toutes les variantes réalisées dans le même esprit.Of course, the invention is not limited to the embodiments described above but it covers all the variants produced in the same spirit.

Claims (10)

1. Material based on a non-woven textile fiber web usable as reinforcing structure for watertight coverings, constituted by a fibrous web combined with a textile grid, characterized in that the textile grid is embedded in the fibrous structure of which the fibers are intermingled through the grid interstices and project on each side of the grid, the intermingling of the fibers through the reinforceing grid being obtained by the action of jets of fluid (air or water) which push the fibers through the grid and distributing them on either side of the latter without any damage being caused thereto.
2. Material according to the claim 1, characterized by the fact that the textile grid is a non-woven grid.
3. Material according to the claim 2, characterized by the fact that the said textile grid is based on glass-fibers.
4. Material according to the claim 3, characterized by the fact that the said textile grid is based on polyester fibers.
5. Material according to one of the claims 1 to 4, characterized by the fact that the said fibrous structure is based on glass-fibers.
6. Material according to one of the claims 2 and 3, characterized by the fact that the said fibrous structure is based on polyester fibers.
7. Material according to one of the claims 2 and 3, characterized by the fact that the fibrous structure is based on a mixture of glass-fibers and polyester fibers.
8. Material according to one of the claims 2 to 7, characterized by the fact that the fibrous structure further contains a small proportion of fibers having properties liable to be revealed during a subsequent treatment.
9. Process for the production of a material according to one of the claims 1 to 8, consisting in superposing a textile grid (woven or non-woven) with a non-woven fibrous web, produced by dry process, characterized by the fact that the complex is subjected to the action of jets of fluid acting on the superposed material at least on the side of the non-woven fibrous web, the jets pushing the fibers of said web through the grid and distributing them on either side of said grid.
10. Process according to the claim 9, characterized by the fact that the complex is subjected to a second treatment with jets of fluid acting then on the opposite face to the first treated face.
EP88420110A 1987-04-03 1988-04-01 Material based on a non-woven textile fibre web for use as a reinforcing structure for watertight coatings Expired - Lifetime EP0285533B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8704915A FR2613383B1 (en) 1987-04-03 1987-04-03 MATERIAL BASED ON A NONWOVEN TEXTILE TABLECLOTH FOR USE AS A REINFORCING REINFORCEMENT FOR SEALING COATINGS
FR8704915 1987-04-03

Publications (2)

Publication Number Publication Date
EP0285533A1 EP0285533A1 (en) 1988-10-05
EP0285533B1 true EP0285533B1 (en) 1991-06-12

Family

ID=9349896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88420110A Expired - Lifetime EP0285533B1 (en) 1987-04-03 1988-04-01 Material based on a non-woven textile fibre web for use as a reinforcing structure for watertight coatings

Country Status (4)

Country Link
EP (1) EP0285533B1 (en)
DE (1) DE3863221D1 (en)
FI (1) FI881510A (en)
FR (1) FR2613383B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656341A1 (en) * 1989-12-22 1991-06-28 Chomarat & Cie COMPLEX TEXTILE MATERIAL FOR USE IN REINFORCING RESINS.
EP0668392A2 (en) * 1994-02-22 1995-08-23 Milliken Research Corporation Improved roofing membrane and method of making same
WO2001009421A2 (en) * 1999-07-30 2001-02-08 Johns Manville International, Inc. Hydrodynamically bounded carrier webs and use thereof
DE19955730A1 (en) * 1999-11-18 2001-06-21 Johns Manville Int Inc Two or three layer laminates of synthetic non-woven fabric and woven glass fabric or scrim, for use in bituminized roofing webs and sealing membranes, in which the layers are bonded by needling and consolidated with a binder
US6412154B1 (en) 1999-07-30 2002-07-02 Johns Manville International, Inc. Hydrodynamically bounded carrier webs and use thereof
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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2796974B1 (en) 1999-07-30 2002-05-03 Textiles Plastiques Chomarat SEALING COATING
FR2912431A1 (en) * 2007-02-09 2008-08-15 Gerflor Soc Par Actions Simpli FLOOR COATING WITH DUAL REINFORCABLE FRAME.
FR2954375B1 (en) 2009-12-21 2012-02-24 Soprema SOFT SEALING MEMBRANE, IN PARTICULAR FOR THE SEALING OF FLAT SURFACES SUCH AS ROOF
ITMI20131114A1 (en) 2013-07-03 2015-01-04 Politex S A S Di Freudenberg Polit Ex S R L SUPPORT SUBSTRATE FOR BITUMINOUS MEMBRANE AND ITS PREPARATION PROCEDURE.
CN111995783A (en) * 2020-07-31 2020-11-27 中航复材（北京）科技有限公司 Prepreg containing grid reinforcing rib structure and preparation method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1550955A (en) * 1975-12-29 1979-08-22 Johnson & Johnson Textile fabric and method of manufacturing the same
US4190695A (en) * 1978-11-30 1980-02-26 E. I. Du Pont De Nemours And Company Hydraulically needling fabric of continuous filament textile and staple fibers
CA1181542A (en) * 1980-04-23 1985-01-22 Romolo Gorgati Bitumen, atactic polypropylene and propylene/ethylene copolymer compositions and water-proofing membranes using the same
DE3145266C2 (en) * 1981-11-14 1985-08-22 Fa. Carl Freudenberg, 6940 Weinheim Roofing and waterproofing membrane
FR2562472B1 (en) * 1984-04-06 1986-06-06 Chomarat & Cie MATERIAL BASED ON A TEXTILE TABLECLOTH COMPRISING A NON-WOVEN POLYESTER WHICH IS USED AS A SUPPORT FOR GLASS FIBERS IMPLANTED BY NEEDLE, USEABLE AS A REINFORCING STRUCTURE FOR BITUMINOUS SEALING COATING

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656341A1 (en) * 1989-12-22 1991-06-28 Chomarat & Cie COMPLEX TEXTILE MATERIAL FOR USE IN REINFORCING RESINS.
EP0435783A1 (en) * 1989-12-22 1991-07-03 ETABLISSEMENTS LES FILS D'AUGUSTE CHOMARAT & CIE. Société Anonyme Textile material laminate usable for reinforced resin
EP0668392A2 (en) * 1994-02-22 1995-08-23 Milliken Research Corporation Improved roofing membrane and method of making same
WO2001009421A2 (en) * 1999-07-30 2001-02-08 Johns Manville International, Inc. Hydrodynamically bounded carrier webs and use thereof
WO2001009421A3 (en) * 1999-07-30 2001-08-23 Johns Manville Internat Hydrodynamically bounded carrier webs and use thereof
US6412154B1 (en) 1999-07-30 2002-07-02 Johns Manville International, Inc. Hydrodynamically bounded carrier webs and use thereof
US6630046B1 (en) 1999-07-30 2003-10-07 Johns Manville International, Inc. Method of making wall and floor coverings
DE19955730A1 (en) * 1999-11-18 2001-06-21 Johns Manville Int Inc Two or three layer laminates of synthetic non-woven fabric and woven glass fabric or scrim, for use in bituminized roofing webs and sealing membranes, in which the layers are bonded by needling and consolidated with a binder
DE19955730C2 (en) * 1999-11-18 2001-10-04 Johns Manville Int Inc Hydrodynamically connected carrier webs and their 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

Also Published As

Publication number Publication date
EP0285533A1 (en) 1988-10-05
FR2613383B1 (en) 1989-06-23
FI881510A (en) 1988-10-04
FR2613383A1 (en) 1988-10-07
FI881510A0 (en) 1988-03-30
DE3863221D1 (en) 1991-07-18

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