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DE10130571A1 - Lightweight insulation boards/bodies, have outer hemp nonwoven layers and a center layer of hemp scrapings, impregnated with a biologically degradable bonding agent - Google Patents

Lightweight insulation boards/bodies, have outer hemp nonwoven layers and a center layer of hemp scrapings, impregnated with a biologically degradable bonding agent

Info

Publication number
DE10130571A1
DE10130571A1 DE10130571A DE10130571A DE10130571A1 DE 10130571 A1 DE10130571 A1 DE 10130571A1 DE 10130571 A DE10130571 A DE 10130571A DE 10130571 A DE10130571 A DE 10130571A DE 10130571 A1 DE10130571 A1 DE 10130571A1
Authority
DE
Germany
Prior art keywords
hemp
lightweight
layers
impregnated
panels
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.)
Ceased
Application number
DE10130571A
Other languages
German (de)
Inventor
Ralf Linow
Fritz Koppe
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.)
INNOPLA GmbH
Original Assignee
INNOPLA 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 INNOPLA GmbH filed Critical INNOPLA GmbH
Priority to DE10130571A priority Critical patent/DE10130571A1/en
Publication of DE10130571A1 publication Critical patent/DE10130571A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • D04H1/425—Cellulose 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
    • D04H1/42—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
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • 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
    • D04H1/4274—Rags; Fabric scraps
    • 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
    • D04H1/559—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 the fibres being within layered webs
    • 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
    • D04H1/645—Impregnation followed by a solidification process
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B32B2307/7163—Biodegradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The lightweight building boards or bodies have two layers (1,2) of nonwoven hemp, with an intermediate layer (3) of hemp scrapings. The three layers are impregnated with a biologically degradable bonding agent. After drying, the layers are bonded together in a press at a temperature of 180-250 deg C and a pressure of 6 bar.

Description

Die Erfindung betrifft Leichtbauplatten bzw. Leichtbaukörper und Verfahren zur Herstellung. The invention relates to lightweight panels or lightweight structures and methods of manufacture.

Es ist ein Verfahren zur Herstellung von Leichtbaukörpern bzw. Leichtbauplatten bekannt, wobei es zur Vewendung langphaserigen Materials, wie Holzwolle, Flachsreste, Asbestfasern, Glasfasern oder dgl. sowie eines Binders kommt. A method for producing lightweight structures or lightweight panels is known, using long-phase materials such as wood wool, flax residues, asbestos fibers, Glass fibers or the like. And a binder comes.

Bei dem bekannten Verfahren wird das langfaserige Material in oberflächentrockenem Zustand mit den vereinigten flüssigen Reaktionskomponenten von Polyurethan-Hartschaum als Binder in eine Form gebracht und dort bis zur Beendigung des Aufschäumprozesses belassen. Hierbei wird das langfaserige Material zuerst in die Form gebracht und dann werden die vereinigten Reaktionskomponenten aufgegossen. In the known method, the long-fiber material is in a surface-dry state with the combined liquid reaction components of rigid polyurethane foam as a binder brought into a mold and left there until the foaming process has ended. in this connection the long-fiber material is first brought into the mold and then the combined Reaction components poured on.

Zur Kaschierung bzw. Armierung des Leichtbaukörpers bzw. der Leichtbauplatte wird eine Folie oder ein anderer dünner plattenartiger Werkstoff in die Form eingebracht, bevor das langfaserige Material eingelegt wird. Die äußere Hülle des Leichtbaukörpers besteht im wesentlichen aus steifem Material, welches die Form bildet, mit der sich der Polyurethanschaum verbindet. Hierbei werden noch die einzelnen Fasern des langfaserigen Materials vor Einbringen in die Form durch Kämmen gerichtet. (DE-OS 18 08 349). For the lamination or reinforcement of the lightweight body or the lightweight board is a Foil or other thin plate-like material introduced into the mold before the long-fiber material is inserted. The outer shell of the lightweight body consists of essentially made of rigid material, which forms the shape with which the Polyurethane foam connects. Here are the individual fibers of the long-fiber Material directed by combing before inserting into the mold. (DE-OS 18 08 349).

Es sind ferner die sogenannten Holzspanplatten bekannt, die aus Holzspänen und Kunstharzbindemittel heiß gepresst werden. Diese Platten sind jedoch verhältnismäßig schwer und in der Regel feuchtigkeitsempfindlich. Ferner ist ein Verbundwerkstoff und ein Verfahren zur Herstellung dieses Stoffes bekannt, der aus harzgetränktem Fasermaterial besteht, dass durch Druck und Wärme verfestigt und miteinander verbunden ist, wobei das Fasermaterial aus Holzfasern und aus anderen pflanzlichen, insbesondere langen Fasern, wie z. B. Sisal-, Hanf-, Flachs-, Jute- oder Kokusfasern besteht. Hierbei hat man die Holz- und anderen pflanzlichen Fasern untereinander vermischt. Man hat auch eine Lage pflanzlicher Fasern einseitig oder beidseitig von der Holzfaserlage angeordnet. Bei diesem bekannten Verfahren ist es so, dass die Phenolpappe und der Melaminfilm im Anschluss an die Verfahrensschritte in einem zweiten Pressvorgang bei gleichzeitiger Zwischentrocknung aufgebracht werden. (DE-OS 25 40 241). There are also known the so-called chipboard, which are made of wood chips and Resin binders are hot pressed. However, these plates are relatively heavy and usually sensitive to moisture. There is also a composite material and a method known for the production of this substance, which consists of resin-impregnated fiber material that is solidified by pressure and heat and bonded together, the fiber material made of Wood fibers and other vegetable, especially long fibers, such as. B. sisal, hemp, Flax, jute or coconut fibers exist. Here you have the wood and other vegetable Fibers mixed together. You also have a layer of vegetable fibers on one side or arranged on both sides of the wood fiber layer. In this known method it is the case that the Phenol cardboard and the melamine film following the process steps in a second Pressing process can be applied with simultaneous intermediate drying. (DE-OS 25 40 241).

Aus dem Stand der Technik ergibt sich, dass Leichtbauplatten bzw. Leichtbaukörper aus mehrjährigen nachwachsenden Rohstoffen bestehen, deren Bindemittel nicht biologisch abbaubar und fossilen Ursprungs sind. Es handelt sich hierbei überwiegend um Harnstoffformaldehydharze (UF), Melamin-Formaldehydharze (MF), Phenolformaldehydharze (PF), Diisocyanat-Harze (PMDI) oder Mischungen daraus. From the state of the art it follows that lightweight panels or lightweight structures are made of perennial renewable raw materials exist, the binders of which are not organic are degradable and fossil in origin. Most of these are Urea formaldehyde resins (UF), melamine formaldehyde resins (MF), phenol formaldehyde resins (PF), diisocyanate resins (PMDI) or mixtures thereof.

Diese Bindemittel benötigen sowohl bei der Herstellung als auch bei der Anwendung Formaldehyd oder polymere Isocyanate. These binders are required for both production and use Formaldehyde or polymeric isocyanates.

Der Nachteil des bekannten Standes der Technik ist, dass insbesondere die Leichtbauplatten, bzw. Leichtbaukörper nicht biologisch abbaubar und die verwendeten Bindemittel ebenfalls nicht biologisch sind abbaubar und zusätzlich noch Giftstoffe, wie Formaldehyd und polymere Isocyanate enthalten. Dadurch tritt eine erhebliche Umweltbelastung ein und diese Gifte sind auch schädlich fit Menschen, insbesondere dann, wenn es zur Verwendung solcher Platten oder Körper im Wohnungsbau kommt. The disadvantage of the known prior art is that in particular the lightweight panels, or lightweight structure is not biodegradable and so are the binders used are not biodegradable and also toxic substances such as formaldehyde and polymers Contain isocyanates. This causes a significant environmental impact and these are poisons also harmful to fit people, especially when it comes to using such plates or Body comes in housing.

Aufgabe der Erfindung ist, die vorgenannten Nachteile zu beseitigen und Leichtbauplatten, bzw. Leichtbaukörper und ein Verfahren zur Herstellung zu schaffen, welche die Umwelt nicht belasten, insbesondere keine Giftstoffe enthalten und vor allem biologisch abbaubar sind. The object of the invention is to eliminate the aforementioned disadvantages and lightweight building boards, or lightweight structure and to create a method of manufacture that the environment does not burden, especially contain no toxins and above all are biodegradable.

Außerdem haben die erfindungsgemäß hergestellten Leichtbauplatten, bzw. Leichtbaukörper auch eine bessere Wärmedämmung und Schalldämmung und weisen auch ein geringeres Gewicht gegenüber bekannten Platten auf. In addition, the lightweight panels or lightweight bodies produced according to the invention also have better insulation and soundproofing and also have less Weight compared to known plates.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass die Leichtbauplatten, bzw. Leichtbaukörper aus zwei Hanf-Vliesschichten und einer dazwischen angeordneten Hanf- Schäbenschicht bestehen, wobei alle Schichten mit biologisch abbaubaren Bindemitteln getränkt sind. According to the invention, the object is achieved in that the lightweight panels or Lightweight structure made of two layers of hemp fleece and a hemp Shabby layer, all layers with biodegradable binders are soaked.

Es hat sich auch als vorteilhaft erwiesen, die Leichtbauplatten, bzw. Leichtbaukörper so zueinander anzuordnen, dass sie aus zwei angeordneten Hanf-Schäbenschichten und eine mittig angeordnete Hanf-Schäbenschicht, die zwischen zwei Hanf-Vliesschichten eingebettet ist, bestehen, wobei alle Schichten mit biologisch abbaubaren Bindemitteln getränkt sind. It has also proven to be advantageous to use the lightweight panels or lightweight structure to each other to arrange that they consist of two arranged hemp shabby layers and one in the middle arranged hemp scraper layer, which is embedded between two hemp fleece layers is, all layers are soaked with biodegradable binders.

Erfindungsgemäß werden die Leichtbauplatten, bzw. Leichtbaukörper in einer Presse bei einer Temperatur von ca. 180°C bis 250°C und einem Pressdruck von ca. 6 bar bis zum Erreichen der vorgenannten Kerntemperatur gepresst werden, wobei die Presszeit etwa die halbe Dicke der Platte gemessen in Millimeter analog beträgt und die Hanf-Vliesschichten und Hanf- Schäbenschichten vor dem Pressvorgang getrocknet werden. According to the invention, the lightweight panels or lightweight structures are placed in a press at one Temperature of approx. 180 ° C to 250 ° C and a pressing pressure of approx. 6 bar until it is reached of the aforementioned core temperature, the pressing time being approximately half the thickness measured analogously to the plate in millimeters and the hemp fleece layers and hemp Shave layers are dried before the pressing process.

Der Vorteil dieser Erfindung besteht darin, dass erstmals Leichtbauplatten, bzw. Leichtbaukörper aus kurzen Hanffasern (Schäben) und langen Hanffasern in Form von Hanf- Vlies unter Verwendung eines biologisch abbaubaren Bindemittels hergestellt werden und deshalb umweltfreundlich zum Einsatz kommen können. Das bedeutet, dass die erfindungsgemäßen Leichtbauplatten, bzw. Leichtbaukörper, wenn sie einmal zur Entsorgung kommen, umweltfreundlich abgebaut werden können. Dabei haben die Leichtbauplatten und die Leichtbaukörper eine bessere Wärmedämmung und bessere Schalldämmung und auch das spezifische Gewicht ist geringer als bei bekannten Platten. The advantage of this invention is that for the first time lightweight panels, or Lightweight structure made of short hemp fibers (shives) and long hemp fibers in the form of hemp Nonwoven can be made using a biodegradable binder and can therefore be used in an environmentally friendly manner. That means the lightweight boards according to the invention, or lightweight body, once for disposal come, can be degraded in an environmentally friendly manner. The lightweight panels and the lightweight body better insulation and better soundproofing and that too specific weight is lower than with known plates.

Die erfindungsgemäßen Leichtbauplatten, bzw. Leichtbaukörper können Luftfeuchtigkeit aufnehmen und bewirken über die Fruchtfolge eine Verbesserung der Bodenfruchtbarkeit. The lightweight building boards or lightweight building bodies according to the invention are capable of atmospheric humidity absorb and bring about an improvement in soil fertility through crop rotation.

Die Erfindung wird nachstehend anhand von Ausführungsbeispielen näher erläutert. The invention is explained in more detail below on the basis of exemplary embodiments.

Hanf-Vlies und Hanf-Schäben werden mit dem biologisch abbaubaren Bindemittel geleimt, bzw. getränkt, danach getrocknet und in die gewünschte Form gebracht, Fig. 1 zeigt die untere Hanf-Vliesschicht 1 und die obere Hanf-Vliesschicht 2. Dazwischen ist die Hanf- Schäbenschicht 3. Fig. 2 zeigt eine obere Hanf-Schäbenschicht 4 und eine untere Hanf- Schäbenschicht 5 zwischen den Hanf-Vliesschichten 6 und 7 eine dritte Hanf-Schäbenschicht 8. Danach erfolgt der Pressvorgang bei einem spezifischen Druck von ca. 6 bar. Hierbei beträgt die Presszeit etwa die halbe Dicke der Platte in Minuten. Bei dem Pressvorgang mit dem angegebenen Druck werden die Hanf-Vliesschichten und die Hanf-Schäbenschichten entsprechend zusammengepresst, wobei die Hanf-Vliesschichten und die Hanf- Schäbenschichten entsprechend verdichtet werden. Die entsprechenden Leichtbauplatten, bzw. Leichtbaukörper werden dann entsprechend den Erfordernissen weiter verarbeitet. Hemp fleece and hemp shives are glued or soaked with the biodegradable binder, then dried and brought into the desired shape, FIG. 1 shows the lower hemp fleece layer 1 and the upper hemp fleece layer 2 . In between is the hemp scraper layer 3 . Fig. 2 shows a top hemp Schäbenschicht 4 and a lower hemp Schäbenschicht 5 between the hemp nonwoven layers 6 and 7, a third hemp Schäbenschicht. 8 Then the pressing process takes place at a specific pressure of approx. 6 bar. The pressing time is about half the thickness of the plate in minutes. During the pressing process with the specified pressure, the hemp fleece layers and the hemp scraper layers are pressed together accordingly, the hemp fleece layers and the hemp scraper layers being compressed accordingly. The corresponding lightweight panels or lightweight structures are then processed further in accordance with the requirements.

Claims (3)

1. Leichtbauplatten bzw. Leichtbaukörper und Verfahren zur Herstellung dadurch gekennzeichnet, dass die Leichtbauplatten bzw. Leichtbaukörper aus zwei Hanf-Vliesschichten (1; 2) und einer dazwischen angeordneten Hanf-Schäbenschicht (3) bestehen, wobei alle Schichten mit biologisch abbaubaren Bindemitteln getränkt sind. 1. Lightweight panels or lightweight structure and method of manufacture characterized in that the lightweight panels or lightweight structure consist of two hemp fleece layers ( 1 ; 2 ) and an intermediate hemp shaving layer ( 3 ), all layers being impregnated with biodegradable binders , 2. Leichtbauplatten bzw. Leichtbaukörper und Verfahren zur Herstellung dadurch gekennzeichnet, dass die Leichtbauplatten bzw. Leichtbaukörper aus zwei außen angeordneten Hanf- Schäbenschichten (4; 5) und einer mittig angeordneten Hanf-Schäbenschicht (8), die zwischen zwei Hanf-Vliesschichten (6; 7) eingebettet ist, bestehen, wobei alle Schichten mit biologisch abbaubaren Bindemitteln getränkt sind. 2. Lightweight construction panels or lightweight structure and method for manufacturing characterized in that the lightweight construction panels or lightweight structure consist of two hemp shaving layers ( 4 ; 5 ) arranged on the outside and a hemp shaving layer ( 8 ) arranged in the middle, between two hemp fleece layers ( 6 ; 7 ) is embedded, all layers are impregnated with biodegradable binders. 3. Verfahren zur Herstellung der Leichtbauplatten bzw. Leichtbaukörper nach den Ansprüchen 1 und 2 dadurch gekennzeichnet, dass die Leichtbauplatten bzw Leichtbaukörper in einer Presse bei einer Temperatur von ca. 180°C bis 250°C und einem Pressdruck von ca. 6 bar bis zum Erreichen der vorgenannten Kerntermperatur gepresst werden, wobei die Presszeit etwa die halbe Dicke der Platte gemessen in Millimeter analog beträgt, wobei die Hanf-Vliesschichten und Hanf-Schäbenschichten vor dem Pressvorgang getrocknet werden. 3. A method for producing the lightweight panels or lightweight body according to claims 1 and 2 characterized in that the lightweight panels or lightweight body in a press at a temperature of approx. 180 ° C to 250 ° C and a pressing pressure of approx. 6 bar up to Reaching the aforementioned core temperature, the pressing time being about half the thickness of the plate measured in millimeters is analog, with the hemp fleece layers and hemp scraper layers are dried before the pressing process.
DE10130571A 2001-06-27 2001-06-27 Lightweight insulation boards/bodies, have outer hemp nonwoven layers and a center layer of hemp scrapings, impregnated with a biologically degradable bonding agent Ceased DE10130571A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10130571A DE10130571A1 (en) 2001-06-27 2001-06-27 Lightweight insulation boards/bodies, have outer hemp nonwoven layers and a center layer of hemp scrapings, impregnated with a biologically degradable bonding agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10130571A DE10130571A1 (en) 2001-06-27 2001-06-27 Lightweight insulation boards/bodies, have outer hemp nonwoven layers and a center layer of hemp scrapings, impregnated with a biologically degradable bonding agent

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025331A1 (en) * 2007-05-31 2008-12-04 Steico Ag Multilayer material plate, in particular of hemp
FR2953445A1 (en) * 2009-12-07 2011-06-10 A P C A Assemblee Permanente Des Chambres D Agriculture PROTECTIVE AND / OR COMBUSTION MATERIAL AND METHOD FOR MANUFACTURING THE SAME
EP2522786A1 (en) * 2011-05-10 2012-11-14 Politec Polimeri Tecnici S.A. Insulating panel
WO2014086578A1 (en) * 2012-11-20 2014-06-12 Universität Der Künste Berlin Institut Für Produkt- Und Prozessgestaltung Fachbereich Gestaltung Furniture panel and method for producing same
EP4484153A1 (en) * 2023-06-29 2025-01-01 Rozalin Ivanov Stantchev Eco-friendly three-layer hemp panel including an adhesive composition of synthetic and natural binding substances and method for its production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19846704A1 (en) * 1998-10-09 2000-04-13 Treu Hanf Ag Insulation material for construction industry has hemp fiber filling
DE19902588A1 (en) * 1999-01-22 2000-07-27 Agrosys Gmbh & Co Kg Molding shaped bodies of vegetable fibers uses a perforated mold where hot steam is used to break down the biodegradable bonding agent and an underpressure dries the body in the mold before removal
DE19926417A1 (en) * 1999-06-10 2000-12-14 Bayerische Motoren Werke Ag Sandwich structure has top and bottom covering layers, intermediate core and matrix

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19846704A1 (en) * 1998-10-09 2000-04-13 Treu Hanf Ag Insulation material for construction industry has hemp fiber filling
DE19902588A1 (en) * 1999-01-22 2000-07-27 Agrosys Gmbh & Co Kg Molding shaped bodies of vegetable fibers uses a perforated mold where hot steam is used to break down the biodegradable bonding agent and an underpressure dries the body in the mold before removal
DE19926417A1 (en) * 1999-06-10 2000-12-14 Bayerische Motoren Werke Ag Sandwich structure has top and bottom covering layers, intermediate core and matrix

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025331A1 (en) * 2007-05-31 2008-12-04 Steico Ag Multilayer material plate, in particular of hemp
FR2953445A1 (en) * 2009-12-07 2011-06-10 A P C A Assemblee Permanente Des Chambres D Agriculture PROTECTIVE AND / OR COMBUSTION MATERIAL AND METHOD FOR MANUFACTURING THE SAME
WO2011070290A1 (en) * 2009-12-07 2011-06-16 A.P.C.A. (Assemblée Permanente Des Chambres D'agriculture) Protective and/or combustive material and corresponding manufacture method
EP2522786A1 (en) * 2011-05-10 2012-11-14 Politec Polimeri Tecnici S.A. Insulating panel
WO2014086578A1 (en) * 2012-11-20 2014-06-12 Universität Der Künste Berlin Institut Für Produkt- Und Prozessgestaltung Fachbereich Gestaltung Furniture panel and method for producing same
EP4484153A1 (en) * 2023-06-29 2025-01-01 Rozalin Ivanov Stantchev Eco-friendly three-layer hemp panel including an adhesive composition of synthetic and natural binding substances and method for its production

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