EP1226006B1 - Element moule en forme de plaque a base de fibres naturelles et son procede de realisation - Google Patents

Element moule en forme de plaque a base de fibres naturelles et son procede de realisation Download PDF

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Publication number
EP1226006B1
EP1226006B1 EP00962480A EP00962480A EP1226006B1 EP 1226006 B1 EP1226006 B1 EP 1226006B1 EP 00962480 A EP00962480 A EP 00962480A EP 00962480 A EP00962480 A EP 00962480A EP 1226006 B1 EP1226006 B1 EP 1226006B1
Authority
EP
European Patent Office
Prior art keywords
fibers
activation
takes place
natural fibers
hot air
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
EP00962480A
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German (de)
English (en)
Other versions
EP1226006A1 (fr
Inventor
Matthias TRÖGER
Uwe Lange
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.)
Homatherm GmbH
Original Assignee
Homatherm AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8164095&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1226006(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Homatherm AG filed Critical Homatherm AG
Priority to DK00962480.0T priority Critical patent/DK1226006T3/da
Publication of EP1226006A1 publication Critical patent/EP1226006A1/fr
Application granted granted Critical
Publication of EP1226006B1 publication Critical patent/EP1226006B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder

Definitions

  • the present invention relates to a process for the production of plate-like form elements based on natural fibers, wherein natural fibers mixed with binders, the mixture is applied from a forming station, optionally formed and finally bound, the binder in the form of at least partially after activation binder-forming multi-component fibers from a Carrier material is mixed, wherein the multicomponent fibers are formed from a support member and a sheath of a crosslinked plastic.
  • Extensive processes for the production of corresponding plate-shaped mold elements are known in the prior art, for example chipboard production, fiber board production (hdf, mdf), cellulose plates or mat production and the like.
  • fibers, chips and the like are mixed with liquid binders by blowing. Binders are, for example, urea-formaldehyde glue, phenolic imine and the like. Applications in the liquid state are rather uncommon in the case of cellulose plates or their production processes.
  • the fibers are dried and discharged.
  • the fibers can also be mixed with binder in a mixer gluing, resulting in a semi-moist mixture.
  • the dried or semi-wet mixtures are placed on forming stations, usually endless molds formed by forming belts. Finally, a hot pressing takes place in order to bind the applied and possibly shaped plates. It is also known to pass hot steam to activate the glue.
  • a method of the generic type is for example from US 5,824,246 known. Described here is a method according to which a mixture of natural fibers and a thermally activated binder is placed in a hot air press.
  • the peculiarity of the hot air press is that it has two relatively movable to each other arranged compacts, each compact having discharge nozzles, via which the material to be pressed is applied during the pressing process with hot air.
  • a piping system is arranged within each compact, which distributes the hot air to be supplied to the compacts uniformly on the outlet nozzles.
  • the process step of hot air pressing can be followed by a pressing operation in a conventional press with the aim of obtaining mold elements which are compressed to an appropriate extent.
  • the present invention the object of developing a generic method to the effect that in a simple manner with little economic effort and compared to conventional manufacturing process flexible and accurate quality expectation plate-shaped elements can be produced.
  • mats or plates of the generic type should be easier and with lower bulk density, ie more flexible with simultaneous savings by reduced material requirements to produce.
  • the activation takes place by means of hot air.
  • the spread mixture can be damped before the hot air treatment, resulting in a higher strength of the mats or plates.
  • the mold element is cooled, in particular by applying cold air.
  • Natural fibers may be cellulose fibers, for example also produced from waste paper preparation, wood fibers or even wood chips, mineral wool or other vegetable fibers and the like. Almost any mix can be created.
  • the body elements are advantageously also fibrous, but also flakes and similar body shapes are conceivable.
  • "After activation form binder" within the meaning of the invention comprises the release of the in the form binders adhered to body members formed of multi-component fibers or also the formation of multi-component binders.
  • BiKo fibers are known, hot melt adhesive fibers and the like, which can be used.
  • crosslinking binders including copolymers or polyethylene may be used, which may be applied, for example, on polymeric carriers, fibrous, flake-like or the like.
  • the hot-air activation melts the copolymers or polyethylene sheaths and crosslinks both with the polymer carriers and with each other, whereby the good but flexible composite of mats or plates is achieved. Subsequent cooling completes the crosslinking process.
  • a particular advantage of the invention results from the fact that the natural fibers and the body elements can be mixed very easily in a simple manner, so that it can be assumed that the molding element has a very good bond over the total volume.
  • the molding mixtures can be generated dry, so that it is possible, for example, to store or transport mixtures.
  • the manufacturing process is much more flexible, because no longer necessarily at the place of mixing must be processed. The storage of the individual components and the mixture of components are simplified.
  • the mixture can be handled more easily overall, so that can be dispensed with expensive scattering devices and the like. It is sufficient simple known mechanical scattering heads and the like.
  • the shaping is also very simple and the activation, for example by blowing hot air through, is much more economical and easier than hot presses.
  • a novel, plate-shaped molded element based on natural fibers formed from a mixture of natural fibers with at least partially after activation binder forming multicomponent fibers, wherein the multicomponent fibers consist of a support member and a sheath of a crosslinking plastic.
  • Such plates have one defined quality status and can be produced in a simple and economical way very flexible.
  • the plates are flexible overall and have a low bulk density. This results in an economic manufacturability of the plates according to the invention, since less material is required for the same volume.
  • the handling of the mats or plates is considerably improved because they are no longer prone to breakage and have the flexibility required for handling. They can be pressed into intermediate spaces, are compressible and can even be thrown during transport and also do not tend to break off the edges with unilateral application of force. Corresponding higher strengths can be achieved by simply pre-steaming before the hot air activation.
  • short fibers 1 for example paper fibers, wood fibers, cellulose fibers or the like
  • long fibers 2 for example jute, sisal and the like
  • binder 3 are mixed together.
  • the binder body elements may be thread-like, flake-shaped or otherwise formed.
  • corresponding carrier elements have a coating of crosslinking plastics, for example polymer carriers with copolymer or polyethylene coating.
  • the base material consisting of natural fibers, which may be composed of short fibers 1 and 2 long fibers, optionally a fire retardant, eg. As borax, and a binder 3, z. B. Biko-Fasem, are mixed together in the station 4, and then mechanically applied at 5 and formed into a mat.
  • a fire retardant eg. As borax
  • a binder 3 z. B. Biko-Fasem

Claims (13)

  1. Procédé de fabrication d'éléments moulés en forme de plaques à base de fibres naturelles, les fibres naturelles étant mélangées à des liants (3), le mélange étant déversé d'un poste de moulage (4), le cas échéant démoulé et finalement lié, le liant (3) étant ajouté par mélange sous forme de fibres à plusieurs composants d'un matériau de support qui forment un liant au moins partiellement après une activation, les fibres à plusieurs composants étant formées à partir d'un élément de support et d'un gainage d'une matière synthétique réticulée,
    caractérisé en ce
    que l'activation se fait au moyen d'air chaud, la masse déversée étant pénétrée de vapeur avant l'activation au moyen d'air chaud.
  2. Procédé selon la revendication 1, caractérisé en ce que les fibres à plusieurs composants présentent au moins partiellement des liants à plusieurs composants.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'un support polymère est utilisé comme élément de support.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'activation se fait au moyen d'air chaud.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'élément moulé est chargé d'air de refroidissement à la fin de l'activation par l'air chaud.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que les fibres naturelles comprennent des fibres de cellulose.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que les fibres naturelles comprennent des fibres de bois.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que le mélange de fibres naturelles et de fibres à plusieurs composants se fait mécaniquement.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que le déversement du mélange se fait mécaniquement.
  10. Procédé selon la revendication 8, caractérisé en ce que le déversement se fait par épandage.
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce que le démoulage se fait mécaniquement.
  12. Procédé selon la revendication 11, caractérisé en ce que le démoulage se fait au moins partiellement par raclage.
  13. Procédé selon l'une des revendications 11 ou 12, caractérisé en ce que le démoulage se fait au moins partiellement par pression.
EP00962480A 2000-09-13 2000-09-13 Element moule en forme de plaque a base de fibres naturelles et son procede de realisation Expired - Lifetime EP1226006B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK00962480.0T DK1226006T3 (da) 2000-09-13 2000-09-13 Pladeformet formelement baseret på naturfibre og fremgangsmåde til fremstilling af dette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2000/008925 WO2002022331A1 (fr) 2000-09-13 2000-09-13 Element moule en forme de plaque a base de fibres naturelles et son procede de realisation

Publications (2)

Publication Number Publication Date
EP1226006A1 EP1226006A1 (fr) 2002-07-31
EP1226006B1 true EP1226006B1 (fr) 2010-01-06

Family

ID=8164095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00962480A Expired - Lifetime EP1226006B1 (fr) 2000-09-13 2000-09-13 Element moule en forme de plaque a base de fibres naturelles et son procede de realisation

Country Status (9)

Country Link
US (1) US7405248B1 (fr)
EP (1) EP1226006B1 (fr)
JP (1) JP4203317B2 (fr)
AT (1) ATE454253T1 (fr)
CA (1) CA2389511C (fr)
DE (1) DE50015837D1 (fr)
DK (1) DK1226006T3 (fr)
ES (1) ES2338295T3 (fr)
WO (1) WO2002022331A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005006796B3 (de) * 2005-02-14 2006-09-07 Grenzebach Bsh Gmbh Verfahren und Vorrichtung zum Herstellen von Dämmstoffplatten
US8454795B1 (en) 2006-12-05 2013-06-04 Mark J. Henderson System and method for producing bonded fiber/cellulose products
DE102007048422A1 (de) * 2007-10-09 2009-04-16 Homatherm Ag Holzfaser-Wärmedämmmaterial und Verfahren für dessen Herstellung
DE102008039720B4 (de) * 2008-08-26 2012-09-13 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Verfahren zur Herstellung von Holzfaser-Dämmplatten"
FI127330B (fi) 2009-01-30 2018-03-29 Upm Kymmene Corp Menetelmä kytkentäaineen lisäämiseksi raaka-aineen joukkoon
DE102014119242A1 (de) 2014-12-19 2016-06-23 Dieffenbacher GmbH Maschinen- und Anlagenbau Dämm- und/oder Schallschutzplatte, deren Verwendung und ein Verfahren zur Herstellung von Dämm- und/oder Schallschutzplatten
DE202014106187U1 (de) 2014-12-19 2016-02-22 Dieffenbacher GmbH Maschinen- und Anlagenbau Dämm- und/oder Schallschutzplatte
DE102020132552A1 (de) 2020-12-08 2022-06-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung von Holzfaserdämmstoffprodukten und Holzfaserdämmstoffprodukt

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1414225A (en) 1973-03-01 1975-11-19 Trus Joist Corp Continuous press for pressing glue-coated consolidatable press charges
DE3412660A1 (de) 1984-04-02 1985-10-10 Günter H. 1000 Berlin Kiss Verfahren zur herstellung von formteilen aus faserigem material und fasermatte zur herstellung von formtilen
DE3629586A1 (de) * 1986-08-30 1988-03-10 Kunnemeyer Hornitex Verfahren zur herstellung von holzfaserplatten
DK245488D0 (da) * 1988-05-05 1988-05-05 Danaklon As Syntetisk fiber samt fremgangsmaade til fremstilling deraf
US5824246A (en) * 1991-03-29 1998-10-20 Engineered Composites Method of forming a thermoactive binder composite
US5284704A (en) * 1992-01-15 1994-02-08 American Felt & Filter Company Non-woven textile articles comprising bicomponent fibers and method of manufacture
US5847029A (en) * 1992-03-06 1998-12-08 Campbell; Craig C. Method and novel composition board products
GB2317623A (en) 1996-09-30 1998-04-01 Zafar Javed Bhatti Boards made from agricultural by-products and plastics
DE19647240B4 (de) 1996-11-15 2005-06-09 Fritz Homann Gmbh & Co. Kg Holzfaserplatte und Verfahren zu ihrer Herstellung
US6200682B1 (en) * 1996-12-11 2001-03-13 Boise Cascade Corporation Apparatus and method for continuous formation of composites having filler and thermoactive materials and products made by the method
US6605245B1 (en) * 1997-12-11 2003-08-12 Boise Cascade Corporation Apparatus and method for continuous formation of composites having filler and thermoactive materials
AU3825499A (en) 1998-05-02 1999-11-23 Rudolph, Norbert-W. Moulded elements made of hard coconut shell granulate and method for producing same

Also Published As

Publication number Publication date
DK1226006T3 (da) 2010-04-26
CA2389511A1 (fr) 2002-03-21
JP2004508967A (ja) 2004-03-25
ES2338295T3 (es) 2010-05-06
JP4203317B2 (ja) 2008-12-24
ATE454253T1 (de) 2010-01-15
DE50015837D1 (de) 2010-02-25
EP1226006A1 (fr) 2002-07-31
WO2002022331A1 (fr) 2002-03-21
US7405248B1 (en) 2008-07-29
CA2389511C (fr) 2007-09-11

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