EP1007775B1 - Composite mousse-fibres longues - Google Patents

Composite mousse-fibres longues Download PDF

Info

Publication number
EP1007775B1
EP1007775B1 EP98941244A EP98941244A EP1007775B1 EP 1007775 B1 EP1007775 B1 EP 1007775B1 EP 98941244 A EP98941244 A EP 98941244A EP 98941244 A EP98941244 A EP 98941244A EP 1007775 B1 EP1007775 B1 EP 1007775B1
Authority
EP
European Patent Office
Prior art keywords
fibres
foam
foaming
foamed
fibers
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
EP98941244A
Other languages
German (de)
English (en)
Other versions
EP1007775A1 (fr
Inventor
Rolf Hesch
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.)
Moeller Plast GmbH
Original Assignee
Moeller Plast 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 Moeller Plast GmbH filed Critical Moeller Plast GmbH
Publication of EP1007775A1 publication Critical patent/EP1007775A1/fr
Application granted granted Critical
Publication of EP1007775B1 publication Critical patent/EP1007775B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D04H1/58—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
    • D04H1/64—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 the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/68—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 the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions the bonding agent being applied in the form of foam

Definitions

  • the invention relates to a method for producing a long fiber foam composite in Shape of a scrim.
  • Foam materials and foam composites are also known, in which fibers, fleeces, fabrics and. structures as reinforcements and where the Foam causes cohesion.
  • the binder is applied to the material in the form of a foamable material already finished fleece applied or introduced, the foamable Binder in the consistency of a viscous paste under pressure on or in the fleece is sprayed, that is, after completion of the fleece.
  • the foam serves exclusively as a binding agent, the small areas of the foamed binder.
  • binders are said to be so be modified so that when applied to textile fabrics, the textile-physical Do not change properties. This measure results in finished flat structures treated afterwards, d. i.e., solidified afterwards.
  • a method is known from WO 93/07318 known after the foam curls are connected to each other by polymer fibers, by melting them and gluing them together, so the familiar "Thermobonding".
  • the foam curls used here have neither a connecting Function, another function that supports the inside.
  • the invention has for its object to provide a long fiber foam composite which the long fibers form a loose, yet dimensionally stable fabric with good Reset properties are connected.
  • this object is achieved by a method of the type indicated, in which the foam body with blowing agents in the formation of the scrim between the Fibers are introduced and the long fibers by reaction or activation of the Blowing agent are partially connected, creating a node-like connection will be produced.
  • the foam bodies connecting in the form of a node can foamed or non-foamed form are introduced into the clutch.
  • the process according to the invention are between fibers only of fibers spanned foam-free zones.
  • natural fibers, man-made fibers, Synthetic fibers, inorganic fibers both as primary fibers and as recycling fibers or mixtures thereof can be used.
  • the partial foam composite according to the invention can the natural fibers just like other fibers with minimal binder expenditure due to foaming be connected to one another in a punctiform manner.
  • the foam bodies support the fibers from the inside forth and ensure that they don't over time can collapse.
  • An increase in the strength of long-fiber partial foam composites can be achieved according to the invention by already foaming the foam body or subsequently foamable in the manner described in introduced a mixture of natural fibers and polymer fibers become.
  • the long fibers can through partial foam bodies then thermobonding increases strength Fusion of the polymer fibers at their crossing points respectively.
  • Partial foam bonded scrim made from mixtures of natural fibers and polymer fibers, unfoamed, previously foamed or foaming afterwards, they also offer Possibility that over the polymer fibers or Foam body if it is made of heat-activated Material, a coupling to sheets, foils, Fabrics and comparable flat materials are made can, possibly with priming of the flat materials. In this way it becomes possible to build lightweight components to produce high strength, e.g. B. car doors, car interior panels, Sandwich elements of all kinds and a. m.
  • the above lightweight components as different sandwich elements Art can also be made according to the invention be when instead of using polymer fibers the fabric on one or both sides with an adhesive is provided or a top layer of foam, the has an adhesive effect and is able to Clutch with sheet-like structures, e.g. B. sheets, Decor fabrics u. a. m. to glue or thermally weld.
  • sheet-like structures e.g. B. sheets, Decor fabrics u. a. m. to glue or thermally weld.
  • Nonwovens manufactured according to the above systems u. can deep-drawn and subsequently pressed, if they thermoplastic components and / or thermosets Include components that are not yet cross-linked.
  • the fleeces can form in zones different densities. In the peripheral zone e.g. B. highly compressed to high strength and rigidity, for. B. for self-supporting parts to achieve and Midfield only slightly compressed to u. a. Upholstery too cause. It is possible using this procedure, too Ribs or embossing for stiffening purposes or Decorative purposes in the molded part with selectable depth and Press density.
  • the procedure is particularly useful for being stiff, dimensionally stable and yet to manufacture light interior parts for vehicles, which do not splinter in the event of a crash.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Claims (12)

  1. Procédé de production d'un composite fibres longues-mousse sous forme d'un revêtement, selon lequel des corpuscules de mousse avec des agents d'expansion sont introduits lors de la formation du revêtement entre les fibres, et les fibres longues sont partiellement reliées par réaction ou activation de l'agent d'expansion, grâce à quoi une liaison sous forme de point de jonction est produite.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    les corpuscules de mousse liant sous forme de point de jonction sont introduits sous forme moussée ou non moussée, dans le revêtement.
  3. Procédé selon la revendication 1 ou la revendication 2,
    caractérisé en ce que
    les corpuscules de mousse introduits sous forme non expansée sont convertis en mousse par réaction ou par activation de l'agent d'expansion introduit au préalable.
  4. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce qu'
    on forme entre les corpuscules de mousse seulement des zones dépourvues de mousse, tendues de part en part par des fibres.
  5. Procédé selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    comme fibres, on utilise des fibres naturelles, des fibres chimiques, des fibres de synthèse, des fibres minérales aussi bien sous forme de fibres primaires que sous forme de fibres de recyclage ou des mélanges de celles-ci.
  6. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    la mise en mousse s'effectue librement sans limitation de volume, de sorte que par mise complète en mousse, on obtient l'épaisseur minimale possible.
  7. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    la mise en mousse est effectuée dans un volume prédéterminé par une presse à double passe, un moule ou analogue avec une épaisseur prédéterminée de cette façon.
  8. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    les fibres de polymères moussées sont introduites dans le mélange de fibres et sont fondues les unes avec les autres par liaison thermique (thermobonding) sur les points de croisement.
  9. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    les fibres de polymères contenant un agent d'expansion sont introduites dans le mélange de fibres.
  10. Procédé selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    le revêtement est moulé par compression dans des moules en pièces de moulage avec des zones compactées d'une manière uniforme ou avec des zones diversement compactées.
  11. Procédé selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    sur les pièces de moulage, on applique sur un ou sur les deux côtés, une couche d'adhésif ou une couche de colle apte au collage.
  12. Procédé selon la revendication 11,
    caractérisé en ce que
    les matériaux de revêtement des surfaces de type décoratif ou de détermination technique, sont collés ou préparés sous forme de mousse.
EP98941244A 1997-08-26 1998-06-29 Composite mousse-fibres longues Expired - Lifetime EP1007775B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19737014A DE19737014A1 (de) 1997-08-26 1997-08-26 Langfaser-Schaumverbund
DE19737014 1997-08-26
PCT/DE1998/001777 WO1999010581A1 (fr) 1997-08-26 1998-06-29 Composite mousse-fibres longues

Publications (2)

Publication Number Publication Date
EP1007775A1 EP1007775A1 (fr) 2000-06-14
EP1007775B1 true EP1007775B1 (fr) 2001-11-21

Family

ID=7840139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941244A Expired - Lifetime EP1007775B1 (fr) 1997-08-26 1998-06-29 Composite mousse-fibres longues

Country Status (5)

Country Link
EP (1) EP1007775B1 (fr)
AU (1) AU8972098A (fr)
CA (1) CA2302006A1 (fr)
DE (2) DE19737014A1 (fr)
WO (1) WO1999010581A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB993966A (en) * 1960-12-23 1965-06-02 W E Rawson Ltd Method of and apparatus for bonding fibrous material
JPS495743B1 (fr) * 1965-10-21 1974-02-08
DE1685180A1 (de) * 1968-02-03 1971-09-02 Heinrich Haeussling Fa Faservlies
DE1947142A1 (de) * 1968-10-22 1970-06-04 Wissenschaftlich Tech Zentrum Textiles Flaechengebilde und Verfahren zu dessen Herstellung
NL7317678A (nl) * 1973-12-27 1975-07-01 Aku Goodrich Chem Ind Werkwijze voor de vervaardiging van een met m geimpregneerde niet-geweven vlies, als- de aldus verkregen vliezen en de daaruit ardigde voorwerpen.
DE2848258C2 (de) * 1978-11-07 1985-03-07 Engineered Yarns, Inc., Coventry, R.I. Verfahren zum Herstellen eines textilen Flächengebildes
EP0159427B1 (fr) * 1982-10-22 1988-06-29 Chisso Corporation Etoffe non-tissée
EP0117458A3 (fr) * 1983-02-26 1988-01-13 Firma Carl Freudenberg Procédé de fabrication d'étoffes textiles fibreuses volumineuses
JPH0428534A (ja) * 1990-05-25 1992-01-31 Teijin Ltd 繊維強化複合成型物の製造法及びそれに用いる中間素材
FI93091C (fi) * 1991-09-30 1995-02-27 Scanwoven Ab Oy Täytemateriaalimatto sekä menetelmä sen valmistamiseksi
EP0657266B2 (fr) * 1993-11-29 2005-09-07 C.A. Greiner & Söhne Gesellschaft M.B.H. Procédé et appareil pour la production d'une pièce moulée en matière plastique mousse

Also Published As

Publication number Publication date
DE59802757D1 (de) 2002-02-21
WO1999010581A1 (fr) 1999-03-04
DE19737014A1 (de) 1999-03-04
AU8972098A (en) 1999-03-16
EP1007775A1 (fr) 2000-06-14
CA2302006A1 (fr) 1999-03-04

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