EP0495765B1 - Etoffe non tissée utilisée comme sous-couche d'un tissu de recouvrement de sièges destinés au transport de personnes - Google Patents

Etoffe non tissée utilisée comme sous-couche d'un tissu de recouvrement de sièges destinés au transport de personnes Download PDF

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Publication number
EP0495765B1
EP0495765B1 EP92870007A EP92870007A EP0495765B1 EP 0495765 B1 EP0495765 B1 EP 0495765B1 EP 92870007 A EP92870007 A EP 92870007A EP 92870007 A EP92870007 A EP 92870007A EP 0495765 B1 EP0495765 B1 EP 0495765B1
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EP
European Patent Office
Prior art keywords
fibres
thickness
covering
fabric
bonded
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.)
Expired - Lifetime
Application number
EP92870007A
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German (de)
English (en)
French (fr)
Other versions
EP0495765A1 (fr
Inventor
Joseph Van Kerrebrouck
Hendrik Vercouter
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.)
Libeltex NV
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Libeltex NV
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Filing date
Publication date
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Publication of EP0495765A1 publication Critical patent/EP0495765A1/fr
Application granted granted Critical
Publication of EP0495765B1 publication Critical patent/EP0495765B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/485—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/488—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/05—Fireproof
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/266—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension of base or substrate
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/268—Monolayer with structurally defined element
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers
    • 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
    • Y10T428/2904—Staple length fiber
    • Y10T428/2905—Plural and with bonded intersections only
    • 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
    • Y10T428/2973—Particular cross section
    • Y10T428/2975—Tubular or cellular
    • 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]
    • Y10T442/3707—Woven fabric including a nonwoven fabric layer other than paper
    • 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]
    • Y10T442/3707—Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/378—Coated, impregnated, or autogenously bonded
    • Y10T442/3813—Coating or impregnation contains synthetic polymeric material

Definitions

  • the invention relates to the use of a nonwoven fabric as an underlay for a fabric for covering seats intended for the transport of persons by road, rail or air.
  • the invention also relates to the seat covering composed of a fabric laminated or not with said fabric, as well as the seat intended for the transport of persons, comprising this covering.
  • nonwoven fabric is meant what is usually called a nonwoven fabric, a nonwoven web or a felt.
  • a seat generally comprises 1) a support ensuring the ergonomic comfort of the user of the seat; this support is generally made of dense foam, springs or bands, 2 °) a padding layer made of a less dense foam than that constituting the support (and possibly separated from the support by a separating film) and 3 °) a covering fabric.
  • the padding layer and the covering fabric are responsible for the thermophysiological aspect of comfort.
  • a seat thus formed is particularly insulating, which results in the release of sweat by the user. If this perspiration is not quickly evacuated, an unpleasant feeling of humidity follows.
  • the insulating effect of the seat is mainly due to the large thickness of dense foam constituting the support, to the film separating the dense foam from the padding foam and to the closed character of the padding foam which contains a multitude of air bubbles. .
  • the humidity must therefore be eliminated either by the sides, either by ventilation, that is to say by pumping effect due to movements and vibrations.
  • the object of the present invention is to use a non-woven fabric as an underlayer of the fabric for covering a seat, replacing the layer of foam padding. It is particularly intended that the nonwoven fabric used according to the invention fulfills both the functions of padding layer and thermophysiological comfort layer.
  • the present invention aims to use a non-woven fabric which is capable of rapidly absorbing the perspiration emitted by the user of the seat, at the level of the contact zone between the user and the seat.
  • the fabric used according to the invention has, by its hydrophilic nature, the capacity to rapidly absorb moisture before transporting it to the outside.
  • Another object of the present invention is to use a nonwoven fabric capable of transporting moisture in a direction parallel to the surface of the fabric.
  • the present invention also aims to use a non-woven fabric allowing the evacuation of moisture by ventilation.
  • the fabric used according to the invention has sufficient compressive strength and elasticity characteristics to allow absorption, transport and evacuation of moisture.
  • the present invention relates to the use of a non-woven fabric as an underlayer of a fabric for covering seats intended for the transport of persons (by road, rail or air), replacing the traditional layer of padding in foam.
  • the nonwoven fabric used according to the invention is produced by the dry process. It has a density between 20 and 100 kg / m3 and, preferably, between between 30 and 60 kg / m3 and a thickness between 4 and 40 mm and, preferably, between 8 and 12 mm.
  • the nonwoven fabric used according to the invention comprises at least 50% of synthetic fibers, preferably chosen from polyester, polyamide, polyoxyamide fibers, or fibers of the "superabsorbent” type or a mixture of these different fibers.
  • fibers of the "superabsorbent” type is meant fibers having an absorption capacity greater than 100%, that is to say fibers absorbing more than 1 g of water per gram of fiber.
  • the "superabsorbent" fibers used are, for example, those sold under the names Lansael®, Fibersorb® or Bemliese®.
  • the synthetic fibers chosen are polyester fibers.
  • the fibers used are preferably hydrophilic or made hydrophilic by an appropriate treatment.
  • the synthetic fibers used in the composition of the fabric used according to the invention have a thickness between 3 and 40 dtex and, preferably, between 6 and 20 dtex and a length between 2 and 12 cm and, preferably, between 5 and 7.5 cm.
  • the nonwoven fabric used according to the invention can comprise up to 50% of natural and / or artificial fibers which can be, for example, cellulose fibers (cotton, rayon, viscose) or wool.
  • the fibers making up the fabric used according to the invention are bonded by needling.
  • said fibers are linked both by needling and by thermal bonding.
  • the nonwoven fabric must contain a certain percentage of "thermobonding" fibers.
  • thermobonding fibers fibers whose melting point is lower than that of the main fibers, or fibers having a surface layer whose melting point is lower than that of the part fiber interior (“two-component" fibers).
  • the fibers are linked both by needling and by chemical bonding.
  • This chemical bonding is carried out by spraying the fibers with a resin which can be, for example, an aqueous emulsion of polyacrylate or polyurethane resin.
  • the nonwoven fabric used according to the invention has sufficient compressive strength so that, when subjected to a static pressure of 20 cN / cm2 (which corresponds to the pressure exerted by the weight of an average person ), it retains a minimum thickness of 2 mm.
  • this minimum thickness is 4 mm.
  • This minimum thickness of 2 mm or even 4 mm is necessary to allow the fabric to absorb the perspiration emitted by the seat user, and to allow the fabric to transport this moisture in a direction parallel to the surface. fabric, or transport it by ventilation.
  • the subject of the invention is also a covering of seats intended for the transport of persons, comprising a covering fabric and a nonwoven fabric, this fabric having the characteristics listed above.
  • the covering fabric and the nonwoven fabric can be laminated by one of the techniques known to those skilled in the art.
  • This lamination can, for example, be carried out using a sizing means such as a dispersion, an emulsion or an adhesive solution or such as a powder, a film or a thermoplastic coating.
  • This sizing means can be applied, for example, by spraying, dusting, impregnation or printing.
  • the present invention also relates to a covering material for seats intended for the transport of persons, consisting of a covering fabric laminated to a nonwoven fabric; this fabric having the characteristics listed above.
  • the lamination can be carried out according to one of the techniques known to those skilled in the art and listed above.
  • the invention relates to a seat intended for the transport of persons (by road, rail or air), having a covering or a covering material according to the invention.
  • the nonwoven fabric used according to the invention comprises two types of fibers which are presented as a mixture under the reference "D-291 Quallofil®" from the company Dupont de Nemours. It is a mixture of thermobonding fibers and polyester fibers of 13 dtex, hollow, with four channels, the percentage of hollow volume being greater than 23% of the total volume of the fiber. The length of the fibers is 7 to 8 cm. A special finish gives this fiber a smooth, hydrophilic surface and a reduced flammability character.
  • the fiber mixture was carded and coated using techniques well known to those skilled in the art.
  • the fibers were then bonded by needling and then by thermal bonding.
  • the fabric thus obtained has a thickness of 10 mm and an apparent density of 40 kg / m3. It has a compressive strength such that, when subjected to a static pressure of 20 cN / cm2, this fabric retains a thickness of 8.5 mm.
  • This nonwoven fabric has been tested, in comparison with a standard foam on a "skin model" according to DIN 504-101 Part 1.
  • This standard is also proposed as a draft standard under the reference ISO / TC 38 / SC 8:15 a.m.
  • the parameters tested are as follows: thermal resistance: R ct (measured in m2 K / w), resistance for moisture transport: R and (measured in m2 mbar / w) and the moisture absorption capacity Fi (expressed in%) (weight of water absorbed per dry weight of product).
  • R ct measured in m2 K / w
  • R and measured in m2 mbar / w
  • Fi moisture absorption capacity
  • the ventilation speed is 32% ((1.279-0.867) / 1.279) for the nonwoven fabric and 23% ((1.715-1.318) / 1.715) for the foam layer; which means that the effect of vibrations and movements provides a greater increase in the transfer of moisture in the case of the nonwoven fabric than in the case of the foam layer.
  • the fiber mixture was carded and coated using techniques well known to those skilled in the art.
  • the fibers were then bonded by needling and thermal bonding.
  • the fabric thus obtained has a thickness of 11 mm and an apparent density of 35 kg / m3. It has a compressive strength such that, when subjected to a static pressure of 20 cN / cm2, it retains a thickness of 7 mm.
  • the covering of seats for transporting people according to the invention comprises the nonwoven fabric, the characteristics of which are given in Example 1, and the covering fabric "MILPOINT®" from the company Guilford.
  • thermoplastic powder of the copolyester type applied by dusting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Outer Garments And Coats (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Details Of Garments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Toilet Supplies (AREA)
  • Knitting Of Fabric (AREA)
EP92870007A 1991-01-11 1992-01-10 Etoffe non tissée utilisée comme sous-couche d'un tissu de recouvrement de sièges destinés au transport de personnes Expired - Lifetime EP0495765B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9100309A FR2671565B1 (fr) 1991-01-11 1991-01-11 Etoffe non tissee utilisee comme sous-couche d'un tissu de recouvrement de sieges destines au transport de personnes.
FR9100309 1991-01-11

Publications (2)

Publication Number Publication Date
EP0495765A1 EP0495765A1 (fr) 1992-07-22
EP0495765B1 true EP0495765B1 (fr) 1993-05-12

Family

ID=9408624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92870007A Expired - Lifetime EP0495765B1 (fr) 1991-01-11 1992-01-10 Etoffe non tissée utilisée comme sous-couche d'un tissu de recouvrement de sièges destinés au transport de personnes

Country Status (12)

Country Link
US (1) US5292577A (no)
EP (1) EP0495765B1 (no)
JP (1) JP2638706B2 (no)
AT (1) ATE89346T1 (no)
DE (1) DE69200003T2 (no)
DK (1) DK0495765T3 (no)
ES (1) ES2041205T3 (no)
FI (1) FI920081A (no)
FR (1) FR2671565B1 (no)
IE (1) IE66399B1 (no)
NO (1) NO300764B1 (no)
WO (1) WO1994001609A1 (no)

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Also Published As

Publication number Publication date
FI920081A0 (fi) 1992-01-08
ATE89346T1 (de) 1993-05-15
DK0495765T3 (da) 1993-08-30
FI920081A (fi) 1992-07-12
EP0495765A1 (fr) 1992-07-22
NO920141D0 (no) 1992-01-10
NO300764B1 (no) 1997-07-21
NO920141L (no) 1992-07-13
IE920082A1 (en) 1992-07-15
WO1994001609A1 (en) 1994-01-20
DE69200003D1 (de) 1993-06-17
FR2671565A1 (fr) 1992-07-17
JPH055260A (ja) 1993-01-14
DE69200003T2 (de) 1993-12-02
ES2041205T3 (es) 1993-11-01
US5292577A (en) 1994-03-08
IE66399B1 (en) 1995-12-27
FR2671565B1 (fr) 1993-04-30
JP2638706B2 (ja) 1997-08-06

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