EP2183419B1 - Non-tissé de base pour stratifiés à trois couches - Google Patents

Non-tissé de base pour stratifiés à trois couches Download PDF

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Publication number
EP2183419B1
EP2183419B1 EP08785952A EP08785952A EP2183419B1 EP 2183419 B1 EP2183419 B1 EP 2183419B1 EP 08785952 A EP08785952 A EP 08785952A EP 08785952 A EP08785952 A EP 08785952A EP 2183419 B1 EP2183419 B1 EP 2183419B1
Authority
EP
European Patent Office
Prior art keywords
woven
base non
dtex
lengthwise
cards
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.)
Not-in-force
Application number
EP08785952A
Other languages
German (de)
English (en)
Other versions
EP2183419A1 (fr
Inventor
Rudolf Schlotter
Peter Friedrich
Jürgen HECK
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.)
Eswegee Vliesstoff GmbH
Original Assignee
Eswegee Vliesstoff GmbH
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 Eswegee Vliesstoff GmbH filed Critical Eswegee Vliesstoff GmbH
Publication of EP2183419A1 publication Critical patent/EP2183419A1/fr
Application granted granted Critical
Publication of EP2183419B1 publication Critical patent/EP2183419B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
    • E04D12/002—Sheets of flexible material, e.g. roofing tile underlay
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics

Definitions

  • the invention relates to a base web for trilaminates which have a film membrane connected to the base web and a cover layer arranged thereon, according to the preamble of patent claim 1.
  • Multilayer films with adjustable water vapor permeability are known as so-called roof underlays.
  • the state of the art is here, for example, on the DE 199 11 280 A1 , the DE 199 44 819 A1 or the DE 10 2005 038 863 A1 directed.
  • Such films consist of a water vapor permeable base layer of a first plastic material and at least one coupled to the base layer water vapor permeability controlling second layer of a second plastic material.
  • a third layer formed as a cover layer may be present.
  • a vapor-permeable roof underlay having an inner film layer containing at least a three-ply composite with outer nonwoven layers based on thermoplastic materials and an inner film layer known.
  • outer nonwoven layers based on polyester filaments with a basis weight of 30 to 120 g / m 2 .
  • a strength improvement should also be made possible by the use of embossed nonwoven layers.
  • the nonwoven layers of continuous filaments not only on the basis of polypropylene or polyethylene alone, but in Form a compound with a low content of ethylene-vinyl acetate copolymers.
  • the basic fleece to be created is to be manufactured in a cost-effective and reproducible manner, it being simple to provide means which permit adhesion of the film membrane to be applied as interlayer of the trilaminate.
  • the basic idea of the invention is to replace hitherto used spun-bonded nonwovens by staple fiber nonwovens, wherein the means for thermally fixing the membrane of the membrane are applied sparingly and if possible in the actual production process of the base nonwoven.
  • the desired breathability and vapor permeability of the base fabric is ensured in any case and sufficient strength, especially in the transverse direction, guaranteed.
  • the embodiments of the invention is common that the staple fiber fleece is formed from a cross-laid and longitudinal pile and To obtain a hydrophobic surface, a temperature-assisted compaction takes place.
  • a mixture of polyester fibers and polypropylene melt fibers is used for the formation of the crossed pile.
  • the proportion of polypropylene melt fibers is based on the total amount of about 10 to 25% and is preferably about 12.5%.
  • the blend of cross-crimps in this embodiment of the invention is 80% polyester fibers (PES) and 20% polypropylene melt fibers (PP) with PES 1.7 dtex at a fiber length substantially 38 mm and PP 2.2 dtex at a fiber length of substantially 40mm.
  • the blend of longitudinal carding may contain up to 100% PES, which has a fiber fineness of 1.7 dtex or 3.3 dtex and preferably 40% 1.7 dtex and 60% 3.3 dtex with substantially consistent fiber length in the range between 30 and 40mm exists.
  • the ratio of the mixtures Wienkrempel / Lekskrempel can be at 10: 1 - 1: 1, but expediently 5: 3.
  • a pressure of 60-80 bar can be set on a first solidification bar, a pressure of 110-130 bar on a second solidification bar, and a pressure of 160-180 bar on a third solidification bar, wherein the ranges of values indicated do not represent absolute values
  • Embodiment be the pressures from the first to the second to the third solidification bar 70 bar, 120 bar and 170 bar.
  • a staple fiber non-woven fabric is again formed from cross-laid pile, for which purpose a mixture of PES fibers with proportions of 1.7 dtex to 3.3 dtex is used.
  • a bonding agent for the film membrane layer a polyethylene scattering powder is used, which is applied on one side.
  • the PE scattering powder layer is subjected to a temperature assisted compaction, i. Pressure treatment fixed and smoothed.
  • the amount of polyethylene powder applied is in the range between 4 and 20 g / m 2 , preferably 6 to 10 g / m 2 .
  • the polyethylene scattering powder it is also possible to use comparable thermoplastics or thermally activatable, reactive adhesives with a particle size of 0-1,000 ⁇ m, preferably 100-500 ⁇ m.
  • the cross-laid batt may have specifying equipment in all embodiments.
  • the longitudinal fibrous web has on one side a binder and / or pigment application.
  • a base web having a basis weight in the range of 50 to 90 g / m 2 is provided .
  • the base nonwoven fabric should have a very uniform weight distribution perpendicular to the direction of travel in order to ensure the desired dimensional stability or temperature passage during calendering.
  • the adhesion to the PE film membrane is triggered according to this embodiment via a proportion of PP melt fiber in the cross-laid pile.
  • the mixture in the Wienkrempel PES to PP is essentially 80:20 with a share PES 1.7 dtex, 38mm fiber length, and a proportion of PP 2.2 dtex at about 40mm fiber length.
  • the mixture in the longitudinal card is based on 100% PES, of which 40% PES 1.7 dtex 38mm fiber length and 60% 3.3 dtex at 38mm fiber length.
  • the ratios between mixture cross-paste and mixture longitudinal scrap are essentially 5: 3, so that there is an absolute proportion of PP in the amount of 12.5% with a share of 87.5% PES.
  • the maximum product temperature is limited to approx. 150 ° C by setting the dryer accordingly.
  • Hardening at the crossing is done by a jet of water. Remaining residual moisture serves as a wetting agent and ensures foam application equipment for a correspondingly homogeneous color and binder order on the nonwoven surface.
  • the pressure for smoothing, i. the temperature-assisted compaction is driven with a maximum belt tension. Additional ionizing bars take unwanted electrical charges from the ground fleece surface.
  • the equipment is made, for example, so that the longitudinal batt receives a binder application up to 10 g / m 2 and a pigment application up to 1 g / m 2 on one side on the top.
  • the temperature assisted densification of the nonwoven surface provides a low cost, hydrophobic surface.
  • the fiber mixture for both the Wienkrempel and for the longitudinal card of 100% PES fibers including a mixture of fibers 1.7 dtex and 3.3 dtex.
  • thermoplastic or thermally activatable reactive powder such as a PE powder with melting point 110 ° C and MFI ⁇ 100.
  • the amount of adhesive to be applied is in the range of 4 to 20 g / m 2 , preferably 6 to 10 g / m 2 .
  • the applied powder is also subjected to a smoothing by temperature-assisted compression in this embodiment, wherein the temperature for fixing and smoothing of the powder on the type and amount of PE powder used is dependent and PE foam, for example, about 150 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)

Claims (12)

  1. Non-tissé de base pour stratifiés à trois couches, qui comprennent une membrane en feuille reliée au non-tissé de base et une couche de recouvrement agencée sur celle-ci,
    caractérisé en ce que
    un non-tissé en fibres discontinues est formé à titre de non-tissé de base à partir d'un voile posé en croix et posé en long, pour lequel on emploie un mélange de fibres de polyester et de fibres fondues de polypropylène, et dans lequel pour obtenir une surface hydrophobe, il se produit un compactage et un lissage assisté en température, tels que le compactage assisté en température est exécuté sur plusieurs passes avec des pressions croissantes.
  2. Non-tissé de base selon la revendication 1,
    caractérisé en ce que la part des fibres fondues de polypropylène (PP), par référence au mélange total, est de 10 % à 25 %, de préférence aux alentours de 12,5 %.
  3. Non-tissé de base selon la revendication 1,
    caractérisé en ce que le mélange de la carde en croix est aux alentours de 80 % de fibres de polyester (PES) et 20 % de PP avec PES de 1,7 dtex, une longueur de fibre sensiblement égale à 30 mm, ainsi que du PP à 2,2 décitex et une longueur de fibre sensiblement égale à 40 mm.
  4. Non-tissé de base selon la revendication 3,
    caractérisé en ce que le mélange de la carde en long contient 100 % de PES et une finesse de fibres de 1,7 dtex ou 3,3 dtex.
  5. Non-tissé de base selon la revendication 4,
    caractérisé en ce que le mélange de la carde en long est formé de 40 % de fibres à 1,7 dtex et 60 % de fibres à 3,3 dtex.
  6. Non-tissé de base selon la revendication 3, 4 ou 5,
    caractérisé en ce que le rapport des mélanges carde en croix/carde en long est dans la plage de 10:1 à 1: 10.
  7. Non-tissé de base selon la revendication 3, 4, 5 ou 6,
    caractérisé en ce que le rapport des mélanges carde en croix/carde en long est d'environ 5:3.
  8. Non-tissé de base selon l'une des revendications précédentes,
    caractérisé en ce que, au moyen de la part de fibres fondues de PP dans le voile de fibres posé en croix, il est possible de réaliser une liaison avec la membrane en feuille du stratifié à trois couches.
  9. Non-tissé de base pour stratifiés à trois couches, qui comprennent une membrane en feuille reliée au non-tissé de base et une couche de recouvrement agencée sur celle-ci,
    caractérisé en ce que
    un non-tissé en fibres discontinues est formé à titre de non-tissé de base à partir d'un voile posé en croix et posé en long, pour lequel on emploie un mélange de fibres de polyester avec des parts de fibres de 1,7 dtex à 3,3 dtex, et à titre d'agent adhésif pour la couche de la membrane en feuille on applique sur un côté une poudre pulvérisée de polyéthylène et la couche de poudre pulvérisée de polyéthylène est fixée et lissée par compactage assisté en température.
  10. Non-tissé de base selon la revendication 9,
    caractérisé en ce que la quantité de poudre pulvérisée de polyéthylène appliquée est de 4g/m2 à 20 g/m2.
  11. Non-tissé de base selon l'une des revendications précédentes,
    caractérisé en ce que la nappe de fibres posées en croix comporte une armature.
  12. Non-tissé de base selon l'une des revendications 1 à 8,
    caractérisé en ce que la nappe de fibres posées en long comporte une application unilatérale de liant et/ou de pigment.
EP08785952A 2007-08-22 2008-07-07 Non-tissé de base pour stratifiés à trois couches Not-in-force EP2183419B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007039771 2007-08-22
DE102008024944.0A DE102008024944B4 (de) 2007-08-22 2008-05-23 Grundvlies für Trilaminate
PCT/EP2008/058771 WO2009024396A1 (fr) 2007-08-22 2008-07-07 Non-tissé de base pour stratifiés à trois couches

Publications (2)

Publication Number Publication Date
EP2183419A1 EP2183419A1 (fr) 2010-05-12
EP2183419B1 true EP2183419B1 (fr) 2012-09-12

Family

ID=40280343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08785952A Not-in-force EP2183419B1 (fr) 2007-08-22 2008-07-07 Non-tissé de base pour stratifiés à trois couches

Country Status (3)

Country Link
EP (1) EP2183419B1 (fr)
DE (1) DE102008024944B4 (fr)
WO (1) WO2009024396A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2996565B1 (fr) * 2012-10-04 2014-11-28 Saint Gobain Isover Installation et procede pour fabriquer un produit d'isolation thermique et/ou phonique
DE102014001792A1 (de) * 2014-02-12 2015-08-13 Sandler Ag Unterdeckplate
CA3084635A1 (fr) * 2019-06-24 2020-12-24 Owens Corning Intellectual Capital, Llc Doublure inferieure d`une toiture munie de noyau non tisse hydrophobe

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260677C3 (de) * 1972-12-12 1976-03-25 A4 Id 27-06 Einlagestoff auf Vliesstoffbasis
DE3314691C1 (de) * 1983-04-22 1984-10-25 Fa. Carl Freudenberg, 6940 Weinheim Flaechenisolierstoff und Verfahren zu seiner Herstellung
ATE37415T1 (de) * 1984-10-23 1988-10-15 Walter Voest Dachunterspannbahn.
DD292489A5 (de) * 1990-03-06 1991-08-01 Forschungsinst. Fuer Textiltechnologie,De Verfahren zur herstellung von faservliesen mit sich kreuzenden fasern
JP3063151B2 (ja) 1990-11-15 2000-07-12 ダイニック株式会社 直貼り床用緩衝部材
DE4437521A1 (de) * 1994-10-20 1996-04-25 Doerken Ewald Ag Unterspannbahn, insbesondere für geneigte, wärmegedämmte Dächer
DE29700810U1 (de) 1997-01-17 1997-05-28 Hoechst Trevira Gmbh & Co Kg Vliesstoff mit verbesserter Oberflächengüte für Dachunterspannbahnen
DE29700987U1 (de) 1997-01-22 1997-04-03 Wirz Peter Diffussionsoffene Dachunterspannbahn mit innerer Folienschicht
DE19911280A1 (de) 1999-03-13 2000-09-14 Sandler C H Gmbh Wasserdampfdurchlässiger, wasserdichter Schichtenverbund
DE69932952T2 (de) 1999-06-18 2007-04-26 3M Innovative Properties Co., St. Paul Faservliese, klebstoffartikel und herstellungsverfahren
DE19944819A1 (de) 1999-09-18 2001-03-22 Kloeber Johannes Eine auf ein Vlies aufgebrachte, einen Film aufweisende, wasserdampfdurchlässige Luftsperre
DE10109476C1 (de) * 2001-02-28 2002-06-27 Gunter Schmidt Verfahren und Vorrichtung zum Herstellen isotroper Vliesstoffe
DE10112375A1 (de) * 2001-03-15 2002-09-26 Tesa Ag Trägermaterial auf Vliesbasis insbesondere für ein Klebeband mit verbesserter Handeinreißbarkeit
ITPD20030100A1 (it) * 2003-05-13 2004-11-14 Orv Spa Prodotto stratiforme rinforzato a base di tessuto non tessuto particolarmente per bitumazione e suo procedimento di produzione.
ATE445055T1 (de) 2003-06-20 2009-10-15 Sarna Patent & Lizenz Ag Dampfdiffusionsoffene abdichtungsbahn
DE102005038863A1 (de) 2004-09-06 2006-03-23 Silu Verwaltung Ag Mehrschichtfolie mit einstellbarer Wasserdampfdurchlässigkeit

Also Published As

Publication number Publication date
EP2183419A1 (fr) 2010-05-12
DE102008024944A1 (de) 2009-02-26
DE102008024944B4 (de) 2018-05-09
WO2009024396A1 (fr) 2009-02-26

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