EP1588815B1 - Verfahren zum Herstellen von Pflanzenfilzen aus Werg - Google Patents

Verfahren zum Herstellen von Pflanzenfilzen aus Werg Download PDF

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Publication number
EP1588815B1
EP1588815B1 EP05370007A EP05370007A EP1588815B1 EP 1588815 B1 EP1588815 B1 EP 1588815B1 EP 05370007 A EP05370007 A EP 05370007A EP 05370007 A EP05370007 A EP 05370007A EP 1588815 B1 EP1588815 B1 EP 1588815B1
Authority
EP
European Patent Office
Prior art keywords
ground material
hards
fibers
fibrous
brewed
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
EP05370007A
Other languages
English (en)
French (fr)
Other versions
EP1588815A1 (de
Inventor
Michèle Queneudec T'Kint
Blaise Dupré
Rose-Marie Dheilly
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.)
Universite de Picardie Jules Verne
Institut Technique du Lin ITL
Original Assignee
Universite de Picardie Jules Verne
Institut Technique du Lin ITL
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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Application filed by Universite de Picardie Jules Verne, Institut Technique du Lin ITL filed Critical Universite de Picardie Jules Verne
Priority to PL05370007T priority Critical patent/PL1588815T3/pl
Publication of EP1588815A1 publication Critical patent/EP1588815A1/de
Application granted granted Critical
Publication of EP1588815B1 publication Critical patent/EP1588815B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds

Definitions

  • the invention relates to a method of manufacturing vegetable felts from tows and the product obtained by this process and in particular its use in thermal insulation and / or sound or in the field of packaging.
  • the seats and the fuel tanks of the first aircraft were natural fibers impregnated with some polymer, which acted as the binder.
  • plant-based fibers can be envisaged in many industrial fields, particularly automobiles.
  • the materials obtained from natural fibers have many disadvantages, in particular as regards their chemical composition and their manufacturing process.
  • thermosetting matrix such as an epoxy, vinylester or polyester resin.
  • Document is known DE-42 42,538 a process for the manufacture of a textile based on natural fibers, which does not use tows.
  • the starting material may be flax or not.
  • the cohesion between the fibers of the product is obtained after extraction of the pectins from the fibers and use of the pectins as binding agent. Hot water, or water vapor dissolves the pectins of a linen cloth. This web is then subjected to a calendering step to obtain the cohesion of the fibers.
  • the object of the present invention is to provide a method of manufacturing vegetable felts which overcomes the aforementioned drawbacks, particularly with regard to the manufacturing process.
  • Another object of the present invention is to provide the manufacture of 100% vegetable felts.
  • the tows used in the present invention are obtained using conventional methods of separating the woody portion of the fiber from textile plants.
  • the fibers used according to the present invention are heavily loaded with shives, which makes it possible to efficiently valorize many more or less woody plant co-products and to respect the environmental requirements of recycling.
  • the presence of pectic dust is not a handicap and the tows can be used without cleaning at the exit of the scutch.
  • cutting is meant the mechanical operation of separating the textile fibers from the rest of the plant stem.
  • the felt obtained are 100% vegetable.
  • the fibers used in the process can be bleached beforehand by chemical treatment without affecting the process.
  • the tows are ground to form a fibrous ground material. More precisely, in this step, the tows are crushed in order to turn them into fluffy flakes.
  • cellulosic and / or lignocellulosic agricultural co-products may optionally be incorporated in a mixture, and thus the tows are ground to form a fibrous millstock optionally with other cellulosic and / or lignocellulosic co-products.
  • tows may be substituted in part, in variable proportions up to 95%, depending on the physicochemical, hydric, mechanical and thermal characteristics desired by other tows, or more generally by any other cellulosic and / or lignocellulosic plant substance, or even in a mixture, in particular beet pulp.
  • the type of grinding can be adapted to the starting materials and the desired texture, producing felts that can be more or less fine depending on the proportion of woody fractions and the type of grinding.
  • the tows are tows of flax.
  • Flax has the advantage of having good mechanical properties among other plant fibers (table below) and being easy to supply in France.
  • flax tow can be used, whether from linseed or flax fiber, whatever the varieties and whatever the treatments in culture and the degree of retting.
  • "Retting” means the microbial action intended to remove the pectic cement coating cellulosic fibers of the bark of textile plants, such as flax, and to isolate the latter in order to obtain the tow. .
  • the ground materials are stirred in a liquid medium.
  • the stirring is carried out cold in an aqueous medium, and can be carried out manually or mechanically.
  • the stirring remains very short, of the order of one minute and the water is supplied in sufficient quantity to fully soak the fiber, thereby eliminating part of the water-soluble molecules.
  • the stirred fiber mill is subjected to a heat treatment. More particularly, the heat treatment to which the fibrous ground material is subjected is carried out by microwaves.
  • the processing time is adapted to the power of the microwave and its mode of operation, namely continuous or discontinuous.
  • good results have been obtained with a frequency of 2.450 MHz and a power of 900 W, and with a batch treatment time of the order of 1 min for 10 g of dry ground material.
  • Microwave heating in humid environments has the advantage of speed, of lack of inertia, because stops and start-ups are instantaneous, ease of use with easy power control .
  • the molecular agitation within the mixture is sufficient to entangle the fibers while a fraction of the water is removed by evaporation, which promotes the subsequent drying of the product.
  • the stirred fibrous ground material is molded to form a felt. More specifically, after the microwave treatment, the wet fibrous mixture is cast in a hot mold and in particular pressed to remove most of the water. With pressing, the fiber sample is reduced to about half of its initial volume and more or less compacting can be applied according to the desired texture.
  • the felt obtained is dried. More specifically, and according to one example, the drying of the fibers can be carried out in two stages, a first drying step with the fibers in the mold, and a second step with the demolded fibers. In other embodiments, the drying may be carried out by microwave or by infrared or any suitable treatment.
  • Another object of the present invention relates to the product obtained by the process which is the subject of this patent.
  • This product namely a 100% vegetable felt, has the advantage of being compatible with mineral materials, to be able to be shaped at will during the process and to retain its shape after drying.
  • the felts are completely recyclable in closed circuit for the production of new felts or for the production of compost, in the case of end-of-life felts.
  • the felts obtained by the present process can be rendered non-flammable.
  • the product obtained according to the method described in the present invention is used in thermal and / or sound insulation, as well as in various furniture accessories, in the automotive industry, toy and decoration industries. , packaging, horticulture, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Artificial Filaments (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Seasonings (AREA)

Claims (14)

  1. Verfahren zur Herstellung von Pflanzenfilzen ab Schrotten, bei dem:
    - die Schrotte gewonnen werden, indem der Holzteil von der Faser getrennt wird,
    - die Schrotte zermahlen werden, um eine gemahlene holzige Masse zu bilden.
    - die gemahlene holzige Masse in einem flüssigen Medium gemischt wird,
    - die gemischte gemahlene holzige Masse einer Mikrowellen-Wärmebehandlung ausgesetzt wird,
    - die gemischte gemahlene holzige Masse formgegossen wird, um einen Filz zu bilden,
    - der erhaltene Filz getrocknet wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Schrotte zermahlen werden, um eine gemahlene holzige Masse, gegebenenfalls mit weiteren landwirtschaftlichen Cellulose- und/oder Holzcellulose-Nebenprodukten, zu bilden.
  3. Verfahren nach Anspruch 1 oder 2, beim dem die Schrotte Flachsschrotte sind.
  4. Verfahren nach Anspruch 2, beim dem die Cellulose-Nebenprodukten Rübenpulpen sind.
  5. Verfahren nach einem der Ansprüche 1 bis 4, bei dem die gemahlene holzige Masse in einem wässerigen Medium gemischt wird.
  6. Verfahren nach einem der Ansprüche 1 bis 5, bei dem die Mischung kalt erfolgt.
  7. Verfahren nach irgendeinem der Ansprüche 1 bis 6, bei dem die Mischung manuell erfolgt.
  8. Verfahren nach irgendeinem der Ansprüche 1 bis 6, bei dem die Mischung mechanisch erfolgt.
  9. Verfahren nach Anspruch 1, bei dem die Fasern warm formgegossen werden.
  10. Verfahren nach irgendeinem der Ansprüche 1 bis 9, bei dem die Fasern nach dem Formgiessen gepresst werden.
  11. Produkt erhalten nach irgendeinem der Ansprüche 1 bis 10.
  12. Verwendung des mittels des Verfahrens nach irgendeinem der Ansprüche 1 bis 9 erhaltenen Produkts in der Wärme- und/oder Schallisolierung.
  13. Verwendung des mittels des Verfahrens nach irgendeinem der Ansprüche 1 bis 9 erhaltenen Produkts in der Verpackung.
  14. Verwendung des mittels des Verfahrens nach irgendeinem der Ansprüche 1 bis 9 erhaltenen Produkts im Gartenbau.
EP05370007A 2004-04-21 2005-04-20 Verfahren zum Herstellen von Pflanzenfilzen aus Werg Not-in-force EP1588815B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05370007T PL1588815T3 (pl) 2004-04-21 2005-04-20 Sposób wytwarzania filcu roślinnego z pakuł

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0404215A FR2869254B1 (fr) 2004-04-21 2004-04-21 Procede de fabrication de feutres vegetaux a partir d'etoupes
FR0404215 2004-04-21

Publications (2)

Publication Number Publication Date
EP1588815A1 EP1588815A1 (de) 2005-10-26
EP1588815B1 true EP1588815B1 (de) 2010-09-08

Family

ID=34942758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05370007A Not-in-force EP1588815B1 (de) 2004-04-21 2005-04-20 Verfahren zum Herstellen von Pflanzenfilzen aus Werg

Country Status (5)

Country Link
EP (1) EP1588815B1 (de)
AT (1) ATE480376T1 (de)
DE (1) DE602005023372D1 (de)
FR (1) FR2869254B1 (de)
PL (1) PL1588815T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2942234B1 (fr) * 2009-02-17 2012-03-09 Univ Picardie Procede d'obtention d'un agro materiau, notamment agro liant ou agro composite, et agro materiau obtenu par un tel procede
FR2953531B1 (fr) * 2009-12-07 2012-03-02 Ahlstroem Oy Support non tisse pour bande a joint et bande a joint stable dimensionnellement et pliable sans perte de resistance mecanique comprenant ledit support
FR2967689B1 (fr) * 2010-11-23 2012-11-23 Toulouse Inst Nat Polytech Procede de fabrication d'un materiau solide a partir d'une plante oleagineuse et materiau solide obtenu

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686461A (en) * 1948-09-23 1954-08-17 Wood Conversion Co Method of manufacturing acoustic fiberboard by perforating wet fiber mat
NL7213855A (de) * 1972-10-13 1974-04-16
DK162535C (da) * 1989-11-30 1992-03-30 Dansk Hoerindustri As Hoerfiberfiltplade
DE4242538C2 (de) 1992-12-16 2002-06-13 Thueringisches Inst Textil Verfahren zum Verfestigen von textilen Produkten, hergestellt aus Naturfasern
DE4242539C2 (de) * 1992-12-16 2002-06-06 Thueringisches Inst Textil Verfahren zum Verfestigen von textilen Produkten, hergestellt aus Naturfasern
DE9217604U1 (de) * 1992-12-23 1994-05-19 Steiner, Benno, 83126 Flintsbach Dämmelement aus Flachsfasern zur Wärmedämmung
FR2705369B1 (fr) * 1993-05-13 1995-08-11 Robaeys Freres Sa Van Non-tissé à base de fibres de lin et procédé de fabrication.
DE19541626A1 (de) * 1994-11-12 1996-06-05 Johannes Buschner Dämmstoff und Verfahren zur Herstellung desselben
DE19640622C2 (de) * 1996-10-01 1998-11-12 Moeller Plast Gmbh Baustoff und Verfahren sowie Vorrichtung zur Herstellung eines Baustoffs
US6872674B2 (en) * 2001-09-21 2005-03-29 Eastman Chemical Company Composite structures

Also Published As

Publication number Publication date
PL1588815T3 (pl) 2011-07-29
ATE480376T1 (de) 2010-09-15
EP1588815A1 (de) 2005-10-26
FR2869254A1 (fr) 2005-10-28
FR2869254B1 (fr) 2007-01-26
DE602005023372D1 (de) 2010-10-21

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