EP1794385B1 - Sound-absorbing fabric - Google Patents

Sound-absorbing fabric Download PDF

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Publication number
EP1794385B1
EP1794385B1 EP05802539.6A EP05802539A EP1794385B1 EP 1794385 B1 EP1794385 B1 EP 1794385B1 EP 05802539 A EP05802539 A EP 05802539A EP 1794385 B1 EP1794385 B1 EP 1794385B1
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EP
European Patent Office
Prior art keywords
sound
fabric
absorbing
absorbing fabric
comprised
Prior art date
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Active
Application number
EP05802539.6A
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German (de)
French (fr)
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EP1794385A1 (en
Inventor
Didier Mouraret
Alain Tisseyre
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Acoustic Fabric SC
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Acoustic Fabric SC
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Publication of EP1794385A1 publication Critical patent/EP1794385A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/8409—Sound-absorbing elements sheet-shaped
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • 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
    • D10B2401/00—Physical properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2915—Rod, strand, filament or fiber including textile, cloth or fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2938—Coating on discrete and individual rods, strands or filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/133—Inorganic fiber-containing scrim
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/172—Coated or impregnated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/184—Nonwoven scrim
    • Y10T442/191—Inorganic fiber-containing scrim
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/184—Nonwoven scrim
    • Y10T442/198—Coated or impregnated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3049—Including strand precoated with other than free metal or alloy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y10T442/3293—Warp and weft are identical and contain at least two chemically different strand materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y10T442/3301—Coated, impregnated, or autogenous bonded
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y10T442/3301—Coated, impregnated, or autogenous bonded
    • Y10T442/3309—Woven fabric contains inorganic strand material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3976—Including strand which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.]

Definitions

  • the present invention relates to an acoustic absorbent fabric.
  • acoustic absorbent elements are often constituted by panels of mineral wool, or absorbent foam, positioned behind structural panels, such as metal ceiling slabs, wood structures, polyvinyl chloride, or perforated membranes of polychloride. of vinyl. These panels of absorbent material may also be arranged behind visual protection panels of road screens.
  • FR2329613 a sound damper and a sound absorbing method, usable to reduce noise levels and reverberations of noise in rooms, conference rooms, auditoriums, indoor stadiums, manufacturing facilities and the metro, and to mitigate noise. sounds in long sound paths such as ducts and corridors.
  • This document describes an acoustic absorbent fabric having the features of the preamble of claim 1.
  • the mineral wool panels have disadvantages in terms of safety, insofar as they can lead to a significant emanation of fibers.
  • these mineral wool or absorbent foam panels are bulky, and can absorb moisture, when used outdoors. Finally these elements do not have a nice aesthetic, so it should be implemented behind a dressing support.
  • the object of the invention is to provide an acoustic absorbing element, which is simple in structure, quick to implement, which is aesthetic, which has all the guarantees of safety, and which can be stored and implemented under a weak volume.
  • the invention is an acoustic absorbent fabric, constituted by a glass fabric made from thermoplastic-coated glass fibers, with an opening factor of between 0.5 and 6% the diameter of the son of glass being between 150 and 600 microns and preferably between 270 and 400 microns.
  • the size and shape of the holes are determined to obtain a sound absorption coefficient ⁇ w sabine plenum of 10 cm between 0.3 and 0.8, depending on the frequency of sounds.
  • This shape and the opening factor of the holes can be obtained directly after weaving.
  • the fabric is advantageously subjected to a heat treatment, without stress, which makes it possible to block the threads. It is also possible to carry out a calendering operation, a higher aperture factor fabric, to reduce the aperture factor to the desired value.
  • the reduction of the opening factor can also be achieved by subjecting at least one of the faces of the fabric to a coating of a transparent or colored binder.
  • the title of the glass son alone is between 22 and 136 tex, preferably between 34 and 68 tex, and the title of the son coated with thermoplastic material is between 60 and 200 tex and preferably between 95 and 165 tex.
  • Example 1 Composition: 36% glass and 64% PVC (polyvinyl chloride) + coating or calendering Density: 22 X 20 threads / cm Reason: Natté 1x2 Thickness: 0.55 mm Tear resistant : - chain direction> 150 daN / 5cm - weft direction> 150 daN / 5cm Opening factor: 1 to 2% Fire classification: M1 Coefficient ⁇ w sabine: 0.6
  • Example 2 Composition: 36% glass and 64% PVC Density: 26X21 threads / cm Reason: Natté 1x2 Thickness : 0.55 mm Tear resistant : - chain direction> 150 daN / 5cm - weft direction> 150 daN / 5cm Opening factor: 1 to 2% Fire classification: M1 Coefficient ⁇ w sabine: 0.6
  • the invention brings a great improvement to the existing technique by providing an acoustic absorbent element of simple structure which can be used directly and not behind a decorative facade, since the absorbent fabric itself even decorative properties, low weight, low volume, and having all the conditions of safety and reliability, given the lack of degradation over time, even if the fabric is subjected to inclement weather.

Description

La présente invention a pour objet un tissu absorbant acoustique.The present invention relates to an acoustic absorbent fabric.

Il est connu, dans un certain nombre d'applications, visant notamment l'équipement de bâtiments, ou visant l'équipement d'infrastructures routières, d'utiliser des éléments absorbants acoustiques. Ces éléments absorbants acoustiques, sont souvent constitués par des panneaux de laine minérale, ou de mousse absorbante, positionnés derrière des panneaux structuraux, tels que des dalles de plafond métallique, des structures en bois, en polychlorure de vinyl, ou des membranes perforées de polychlorure de vinyl. Ces panneaux en matériau absorbant peuvent être également disposés derrière des panneaux de protection visuelle d'écrans routiers.It is known in a number of applications, including building equipment, or for road infrastructure equipment, to use acoustic absorbing elements. These acoustic absorbent elements are often constituted by panels of mineral wool, or absorbent foam, positioned behind structural panels, such as metal ceiling slabs, wood structures, polyvinyl chloride, or perforated membranes of polychloride. of vinyl. These panels of absorbent material may also be arranged behind visual protection panels of road screens.

Il est également connu de FR2329613 un amortisseur de son et un procédé pour absorber le son, utilisable pour réduire les niveaux sonores et les réverbérations des bruits dans les pièces, les salles de conférence, les auditoriums, les stades couverts, les ateliers de fabrication et le métro et pour atténuer les sons dans les longues trajectoires sonores telles que les conduits et les couloirs. Ce document décrit un tissu absorbant acoustique ayant les caractéristiques du préambule de la revendication 1.It is also known to FR2329613 a sound damper and a sound absorbing method, usable to reduce noise levels and reverberations of noise in rooms, conference rooms, auditoriums, indoor stadiums, manufacturing facilities and the metro, and to mitigate noise. sounds in long sound paths such as ducts and corridors. This document describes an acoustic absorbent fabric having the features of the preamble of claim 1.

Dans tous les cas, les panneaux de laine minérale présentent des inconvénients en terme de salubrité, dans la mesure où ils peuvent conduire à une émanation importante de fibres. D'autre part, ces panneaux en laine minérale ou en mousse absorbante sont volumineux, et peuvent absorber de l'humidité, lorsqu'ils sont utilisés en milieu extérieur. Enfin ces éléments ne présentent pas une esthétique agréable, de sorte qu'il convient de les mettre en oeuvre derrière un support d'habillage.In all cases, the mineral wool panels have disadvantages in terms of safety, insofar as they can lead to a significant emanation of fibers. On the other hand, these mineral wool or absorbent foam panels are bulky, and can absorb moisture, when used outdoors. Finally these elements do not have a nice aesthetic, so it should be implemented behind a dressing support.

Le but de l'invention est de fournir un élément absorbant acoustique, qui soit de structure simple, de mise en oeuvre rapide, qui soit esthétique, qui présente toutes les garanties de salubrité, et qui puisse être stocké et mis en oeuvre sous un faible volume.The object of the invention is to provide an acoustic absorbing element, which is simple in structure, quick to implement, which is aesthetic, which has all the guarantees of safety, and which can be stored and implemented under a weak volume.

A cet effet, l'invention est un tissu absorbant acoustique, constitué par un tissu de verre réalisé à partir de fils de verre enduits de matière thermoplastique, avec un facteur d'ouverture compris entre 0,5 et 6% le diamètre des fils de verre étant compris entre 150 et 600 microns et de préférence entre 270 et 400 microns.For this purpose, the invention is an acoustic absorbent fabric, constituted by a glass fabric made from thermoplastic-coated glass fibers, with an opening factor of between 0.5 and 6% the diameter of the son of glass being between 150 and 600 microns and preferably between 270 and 400 microns.

Avantageusement, la taille et la forme des trous sont déterminées pour obtenir un coefficient d'absorption acoustique αw sabine avec plénum de 10 cm compris entre 0,3 et 0,8, en fonction de la fréquence des sons.Advantageously, the size and shape of the holes are determined to obtain a sound absorption coefficient αw sabine plenum of 10 cm between 0.3 and 0.8, depending on the frequency of sounds.

Cette forme et le facteur d'ouverture des trous peuvent être obtenus directement à l'issue du tissage. Le tissu est avantageusement soumis à un traitement thermique, sans contrainte, qui permet de bloquer les fils. Il est également possible de mettre en oeuvre une opération de calandrage, d'un tissu de facteur d'ouverture plus élevé, pour réduire le facteur d'ouverture à la valeur souhaitée.This shape and the opening factor of the holes can be obtained directly after weaving. The fabric is advantageously subjected to a heat treatment, without stress, which makes it possible to block the threads. It is also possible to carry out a calendering operation, a higher aperture factor fabric, to reduce the aperture factor to the desired value.

La réduction du facteur d'ouverture peut également être obtenue en soumettant l'une au moins des faces du tissu à une enduction d'un liant transparent ou coloré.The reduction of the opening factor can also be achieved by subjecting at least one of the faces of the fabric to a coating of a transparent or colored binder.

En outre, le titre des fils de verre seuls est compris entre 22 et 136 tex de préférence entre 34 et 68 tex, et le titre des fils enduits de matière thermoplastique est compris entre 60 et 200 tex et de préférence entre 95 et 165 tex.In addition, the title of the glass son alone is between 22 and 136 tex, preferably between 34 and 68 tex, and the title of the son coated with thermoplastic material is between 60 and 200 tex and preferably between 95 and 165 tex.

Il est donné ci-après deux exemples de tissu absorbant acoustique, obtenu à partir de fils de verre présentant les caractéristiques précédentes Exemple 1 Composition : 36% verre et 64% de PVC (polychlorure de vinyle)+ enduction ou calandrage Densité: 22 X 20 fils/cm Motif : Natté 1x2 Epaisseur: 0,55 mm Résistance à la rupture : - sens chaîne > 150 daN/5cm - sens trame > 150 daN/5cm Facteur d'ouverture : 1 à 2% Classement au feu : M1 Coefficient αw sabine : 0,6 Exemple 2 Composition : 36% verre et 64% de PVC Densité : 26X21 fils/cm Motif : Natté 1x2 Epaisseur : 0,55 mm Résistance à la rupture : - sens chaîne > 150 daN/5cm - sens trame > 150 daN/5cm Facteur d'ouverture : 1 à 2% Classement au feu : M1 Coefficient αw sabine : 0,6 Two examples of absorbent acoustic fabric, obtained from glass threads having the above characteristics, are given below. Example 1 Composition: 36% glass and 64% PVC (polyvinyl chloride) + coating or calendering Density: 22 X 20 threads / cm Reason: Natté 1x2 Thickness: 0.55 mm Tear resistant : - chain direction> 150 daN / 5cm - weft direction> 150 daN / 5cm Opening factor: 1 to 2% Fire classification: M1 Coefficient αw sabine: 0.6 Example 2 Composition: 36% glass and 64% PVC Density: 26X21 threads / cm Reason: Natté 1x2 Thickness : 0.55 mm Tear resistant : - chain direction> 150 daN / 5cm - weft direction> 150 daN / 5cm Opening factor: 1 to 2% Fire classification: M1 Coefficient αw sabine: 0.6

Ce tissu peut être utilisé notamment dans les situations suivantes :

  • à la place de panneaux de laine minérale ou de mousse absorbante acoustique positionnés derrière des panneaux structuraux, tels que dalles de plafonds métalliques, structures en bois, en polychlorure de vinyle ou toile de membrane ou polychlorure de vinyle perforée.
  • en substitution de produits absorbants derrière des panneaux de protection visuelle d'écrans routiers,
  • sous forme de toile tendue sur une structure métallique, ou sur des câbles.
  • ou encore contrecollé sur une structure porteuse, telle qu'une structure alvéolaire.
This fabric can be used in particular in the following situations:
  • instead of mineral wool panels or sound absorbing foam positioned behind structural panels, such as metal ceiling tiles, wood structures, polyvinyl chloride or membrane fabric or perforated polyvinyl chloride.
  • substituting absorbent products behind visual screens of road screens,
  • in the form of canvas stretched over a metal structure, or on cables.
  • or laminated on a supporting structure, such as a honeycomb structure.

Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante, en fournissant un élément absorbant acoustique, de structure simple, pouvant être utilisé directement et non pas derrière une façade décorative, puisque le tissu absorbant présente lui-même des propriétés décoratives, d'un faible poids, d'un faible volume, et présentant toutes les conditions de salubrité et de fiabilité, compte tenu de l'absence de dégradation dans le temps, même si le tissu est soumis à des intempéries.As can be seen from the foregoing, the invention brings a great improvement to the existing technique by providing an acoustic absorbent element of simple structure which can be used directly and not behind a decorative facade, since the absorbent fabric itself even decorative properties, low weight, low volume, and having all the conditions of safety and reliability, given the lack of degradation over time, even if the fabric is subjected to inclement weather.

Comme il va de soi l'invention ne se limite pas aux seules formes d'exécution de ce tissu, décrites ci-dessus à titre d'exemples, elle en embrasse au contraire toutes les variantes de réalisation demeurant dans le cadre des revendications.As goes without saying the invention is not limited to the embodiments of this fabric, described above as examples, it encompasses all the variants remaining within the scope of the claims.

Claims (6)

  1. A sound-absorbing fabric constituted by a glass fabric, the diameter of the glass yarns being comprised between 150 and 600 microns and preferably between 270 and 400 microns, the sound-absorbing fabric being characterized in that it is made from glass yarns coated with a thermoplastic material, with an opening factor comprised between 0.5 and 6%.
  2. The sound-absorbing fabric according to claim 1, characterized in that the size and the shape of the holes are determined to obtain an [alpha]w sabine sound-absorbing coefficient with plenum of 10 cm comprised between 0.3 and 0.8, depending of the frequency of the sounds.
  3. The sound-absorbing fabric according to any of claims 1 to 2, characterized in that the count of the glass yarns alone is comprised between 22 and 136 tex, preferably between 34 and 68 tex, and the count of the yarns coated with a thermoplastic material is comprised between 60 and 200 tex, and preferably between 95 and 165 tex.
  4. The sound-absorbing fabric according to any of claims 1 to 3, characterized in that the fabric is subjected to a heat treatment, without constraint.
  5. The sound-absorbing fabric according to any of claims 1 to 4, characterized in that the fabric is subjected to a calendering operation.
  6. The sound-absorbing fabric according to any of claims 1 to 5, characterized in that the fabric is subjected, on at least one of its faces, to a coating of a transparent or colored binder.
EP05802539.6A 2004-09-24 2005-09-23 Sound-absorbing fabric Active EP1794385B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0410139A FR2875821B1 (en) 2004-09-24 2004-09-24 ACOUSTIC ABSORBENT FABRIC
PCT/FR2005/002364 WO2006035145A1 (en) 2004-09-24 2005-09-23 Sound-absorbing fabric

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EP1794385A1 EP1794385A1 (en) 2007-06-13
EP1794385B1 true EP1794385B1 (en) 2016-04-06

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US (1) US7976946B2 (en)
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JP (1) JP2008514825A (en)
KR (1) KR20070083624A (en)
CN (1) CN101044288B (en)
AU (1) AU2005288772B2 (en)
FR (1) FR2875821B1 (en)
WO (1) WO2006035145A1 (en)

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US8167085B2 (en) * 2009-08-07 2012-05-01 Smc Australia Pty Ltd Non-combustible sound-absorbing facing
FR2977593B1 (en) 2011-07-08 2013-07-05 Ferrari S Tissage & Enduct Sa TEXTILE TABLECLOTH ABSORBING SOUND WAVES
KR101492034B1 (en) * 2013-04-17 2015-02-10 박애복 A sound absorption Yarn and Textile and Product Method of It
KR101677847B1 (en) * 2015-06-23 2016-11-21 주식회사 케이씨씨 Acoustic Absorption Panel
CN105155705A (en) * 2015-08-26 2015-12-16 四川航天五源复合材料有限公司 Continuous basalt fiber heat-insulation wallboard

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Also Published As

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US7976946B2 (en) 2011-07-12
WO2006035145A1 (en) 2006-04-06
AU2005288772B2 (en) 2011-03-31
EP1794385A1 (en) 2007-06-13
AU2005288772A1 (en) 2006-04-06
KR20070083624A (en) 2007-08-24
JP2008514825A (en) 2008-05-08
FR2875821A1 (en) 2006-03-31
FR2875821B1 (en) 2006-12-01
CN101044288A (en) 2007-09-26
US20070287346A1 (en) 2007-12-13
WO2006035145A9 (en) 2014-01-09
CN101044288B (en) 2010-10-13

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