EP1794385A1 - Sound-absorbing fabric - Google Patents

Sound-absorbing fabric

Info

Publication number
EP1794385A1
EP1794385A1 EP05802539A EP05802539A EP1794385A1 EP 1794385 A1 EP1794385 A1 EP 1794385A1 EP 05802539 A EP05802539 A EP 05802539A EP 05802539 A EP05802539 A EP 05802539A EP 1794385 A1 EP1794385 A1 EP 1794385A1
Authority
EP
European Patent Office
Prior art keywords
fabric
glass
tex
fabric according
subjected
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.)
Granted
Application number
EP05802539A
Other languages
German (de)
French (fr)
Other versions
EP1794385B1 (en
Inventor
Didier Mouraret
Alain Tisseyre
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.)
Acoustic Fabric SC
Original Assignee
Acoustic Fabric SC
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 Acoustic Fabric SC filed Critical Acoustic Fabric SC
Publication of EP1794385A1 publication Critical patent/EP1794385A1/en
Application granted granted Critical
Publication of EP1794385B1 publication Critical patent/EP1794385B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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, metal joists, wooden structures, polyvinyl chloride, or perforated membranes of polyvinyl chloride. . These panels of absorbent material may also be arranged behind visual protection panels of road screens.
  • the mineral wool panels have disadvantages in terms of health, insofar as they can lead to a significant emanation of fiber.
  • 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 absorbent element, which is simple in structure, fast implementation, which is aesthetic, which has all the guarantees of safety, and which can be stored and implemented under a weak volume.
  • the invention relates to an acoustic absorbent fabric, consisting of a glass fabric made from glass son coated with thermoplastic material, with an opening factor of between 0.5 and 6%.
  • 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 implement a calendering operation, a 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 diameter of the glass strands is between 150 and 600 microns and preferably between 270 and 400 microns.
  • the title of the glass strands alone is between 22 and 36 microns, and the thickness of the thermoplastic coatings is between 60 and 200 tex and preferably between 95 and 165 tex.
  • Example 1 Composition 36% glass and 64% PVC
  • Example 2 Composition: 36% glass and 64% PVC Density: 26X21 yarn / cm Motive: Natté 1x2 Thickness: 0.55 mm Breaking strength: - warp direction> 150 daN / 5cm This fabric can be used in particular in the following situations:
  • a supporting structure such as a honeycomb structure.
  • 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.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Woven Fabrics (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention relates to a sound-absorbing fabric comprising a glass fabric which is made from glass yarns that are coated with a thermoplastic material, with an opening factor of between 0.5 and 6 %.

Description

TISSU ABSORBANT ACOUSTIQUE ACOUSTIC ABSORBENT FABRIC
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,Jels_ç|ue_ des_dajles_de_pjafond 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, metal joists, wooden structures, polyvinyl chloride, or perforated membranes of polyvinyl chloride. . These panels of absorbent material may also be arranged behind visual protection panels of road screens.
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 œuvre derrière un support d'habillage.In all cases, the mineral wool panels have disadvantages in terms of health, insofar as they can lead to a significant emanation of fiber. 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 œuvre rapide, qui soit esthétique, qui présente toutes les garanties de salubrité, et qui puisse être stocké et mis en œuvre sous un faible volume.The object of the invention is to provide an acoustic absorbent element, which is simple in structure, fast implementation, 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 concerne 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%.For this purpose, the invention relates to an acoustic absorbent fabric, consisting of a glass fabric made from glass son coated with thermoplastic material, with an opening factor of between 0.5 and 6%.
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 œuvre une opération de calandrage, d'un 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.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 implement a calendering operation, a 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.
Suivant une autre caractéristique de l'invention, le diamètre des fils de verre est compris entre 150 et 600 microns et de préférence entre 270 et 400 micronsAccording to another characteristic of the invention, the diameter of the glass strands is between 150 and 600 microns and preferably between 270 and 400 microns.
En outre, le titre des fils de verre seuls est compris entre 22 et J-36-tex-de_préférBnc_e_e_ntLe_^4_ej_6JJex,_et Jejjtτe_des_f|ls 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 strands alone is between 22 and 36 microns, and the thickness of the thermoplastic coatings 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 précédentesTwo examples of absorbent acoustic fabric, obtained from glass threads having the above characteristics, are given below.
Exemple 1 Composition 36% verre et 64% de PVCExample 1 Composition 36% glass and 64% PVC
(polychlorure de vinyle)+ enduction ou calandrage(polyvinyl chloride) + coating or calendering
Densité : 22 X 20 fils/cm Motif : Natté 1x2 Epaisseur : 0,55 mmDensity: 22 X 20 thread / cm Motive: Natté 1x2 Thickness: 0,55 mm
Résistance à la rupture - sens chaîne > 150 daN/5cmResistance to breaking - warp direction> 150 daN / 5cm
- sens trame > 150 daN/5cm- weft direction> 150 daN / 5cm
Facteur d'ouverture : 1 à 2% Classement au feu : M1 Coefficient αw sabine : 0,6Factor of opening: 1 to 2% Fire classification: 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 Ce tissu peut être utilisé notamment dans les situations suivantes :Example 2 Composition: 36% glass and 64% PVC Density: 26X21 yarn / cm Motive: Natté 1x2 Thickness: 0.55 mm Breaking strength: - warp direction> 150 daN / 5cm This fabric can be used in particular in the following situations:
- 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.- instead of mineral wool panels or sound absorbing foam placed behind structural panels, such as metal ceiling tiles, wood structures, polyvinyl chloride or membrane fabric or perforated polyvinyl chloride.
- en substitution de produits absorbants derrière des panneaux de _protection.yjs_uellejiécraris. routLeCs,replacing absorbent products behind protective panels. routLeCs,
- sous forme de toile tendue sur une structure métallique, ou sur des câbles.- in the form of canvas stretched over a metal structure, or on cables.
- ou encore contrecollé sur une structure porteuse, telle qu'une structure alvéolaire.- 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. 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 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. 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

REVENDICATIONS
1. Tissu absorbant acoustique, caractérisé en ce qu'il est 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%.1. Absorbent acoustic fabric, characterized in that it consists of a glass fabric made from glass son coated thermoplastic material, with an opening factor of between 0.5 and 6%.
2. Tissu selon la revendication 1 , caractérisé en ce que 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. 2. Fabric according to claim 1, characterized in that 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.
3. Tissu selon l'une des revendications 1 et 2, caractérisé en ce que le diamètre des fils de verre est compris entre 150 et 600 microns et de préférence entre 270 et 400 microns.3. Fabric according to one of claims 1 and 2, characterized in that the diameter of the glass son is between 150 and 600 microns and preferably between 270 and 400 microns.
4. Tissu selon l'une des revendications 1 à 3, caractérisé en ce que 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.4. Fabric according to one of claims 1 to 3, characterized in that the title of the glass son alone is between 22 and 136 tex preferably between 34 and 68 tex, and the title son coated with thermoplastic material is included between 60 and 200 tex and preferably between 95 and 165 tex.
5. Tissu selon l'une des revendications 1 à 4, caractérisé en ce que le tissu est soumis à un traitement thermique, sans contrainte.5. Fabric according to one of claims 1 to 4, characterized in that the fabric is subjected to a heat treatment, without stress.
6. Tissu selon l'une des revendications 1 à 5, caractérisé en ce que le tissu est soumis à une opération de calendrage.6. Fabric according to one of claims 1 to 5, characterized in that the fabric is subjected to a calendaring operation.
7. Tissu selon l'une des revendications 1 à 5, caractérisé en ce que le tissu est soumis sur l'une au moins de ses faces à une enduction d'un liant transparent ou coloré. 7. Fabric according to one 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 binder or colored.
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

Publications (2)

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

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US (1) US7976946B2 (en)
EP (1) EP1794385B1 (en)
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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Also Published As

Publication number Publication date
US7976946B2 (en) 2011-07-12
AU2005288772A1 (en) 2006-04-06
FR2875821B1 (en) 2006-12-01
FR2875821A1 (en) 2006-03-31
WO2006035145A1 (en) 2006-04-06
JP2008514825A (en) 2008-05-08
KR20070083624A (en) 2007-08-24
AU2005288772B2 (en) 2011-03-31
EP1794385B1 (en) 2016-04-06
CN101044288B (en) 2010-10-13
CN101044288A (en) 2007-09-26
WO2006035145A9 (en) 2014-01-09
US20070287346A1 (en) 2007-12-13

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