EP3348727A1 - Acoustic insulation plate - Google Patents

Acoustic insulation plate Download PDF

Info

Publication number
EP3348727A1
EP3348727A1 EP17151508.3A EP17151508A EP3348727A1 EP 3348727 A1 EP3348727 A1 EP 3348727A1 EP 17151508 A EP17151508 A EP 17151508A EP 3348727 A1 EP3348727 A1 EP 3348727A1
Authority
EP
European Patent Office
Prior art keywords
fibers
wool
mixture
binder
cover fleece
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.)
Withdrawn
Application number
EP17151508.3A
Other languages
German (de)
French (fr)
Inventor
Horst Philipp
Gernot Wurm
Monika Manzi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP17151508.3A priority Critical patent/EP3348727A1/en
Priority to EP18700294.4A priority patent/EP3568537A1/en
Priority to PCT/EP2018/050719 priority patent/WO2018130635A1/en
Publication of EP3348727A1 publication Critical patent/EP3348727A1/en
Withdrawn legal-status Critical Current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
    • D04H1/54—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
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • D04H1/02—Cotton wool; Wadding
    • 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
    • D04H1/54—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
    • D04H1/558—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 in combination with mechanical or physical treatments other than embossing
    • 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
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered

Definitions

  • the present invention relates to a method for producing an acoustic insulation board. Furthermore, the invention relates to an acoustic insulation board.
  • walls and ceilings of rooms are provided with acoustic insulation panels. These reduce the reflection of sound waves on the walls and ceilings and thus reduce the noise level in the room.
  • An increased noise level such as e.g. may occur in open-plan offices, sales areas or production halls, may be detrimental to the persons in them.
  • acoustic insulation panels are already described, which, however, usually do not meet the technical and optical challenges.
  • Such acoustic panels in addition to reducing sound reflection, must also meet certain static characteristics, e.g. Objects (such as light sources) to be attached to it.
  • the acoustic insulation panels should also fit visually into the room. In particular, visible edges in the region of the joints of adjacent plates are perceived as disturbing.
  • the object of the present invention is therefore to provide an acoustic insulation panel which fulfills the above-mentioned properties.
  • an acoustic insulation panel comprising a mixture of wool fiber and binder with at least two areas of different density. This part of the acoustic insulation board is also referred to below as the core area.
  • acoustic insulation panels not only has the advantage that wool is a naturally renewable, recyclable raw material, but it also shows that the shocks from adjacent, adjacent acoustic insulation panels are not visible to the naked eye. This is due to the fact that the acoustic insulation panels on the edges are on the one hand compressible and on the other hand have a slight roughness, so that when pushing together two edges no shock remains recognizable.
  • the mixture of wool fibers with binder - especially binder fibers - also shows a very high efficiency in the reduction of sound reflection.
  • the mechanical stability of such plates is sufficient, for example, to be able to record lights or light sources on the ceiling or to attach objects (pictures, panels, etc.) to walls.
  • the acoustic insulation board is self-supporting.
  • the acoustic insulation panel preferably also comprises a cover fleece.
  • a cover fleece in the manufacturing process, first a introduction of a cover fleece in a mold and then the introduction of a mixture of wool fibers and binder fibers in the form and that on the cover fleece.
  • a second cover fleece may be provided, which is arranged on the opposite side of the first cover fleece.
  • the second cover fleece is introduced. This ensures a good connection between cover fleece and core area.
  • the acoustic insulation panel comprises, in the presence of a cover fleece next to the cover fleece disposed thereon a mixture of wool fiber and binder, wherein the mixture has at least two areas with different density. If two cover fleeces are present, then between the two cover fleeces is the mixture of wool fiber and binder with at least two regions with different density.
  • the cover fleece comprises wool and binder, preferably binder fibers. It can be provided that the cover fleece is produced by a nonwoven fabric manufacturing process of wool and binder fibers. Thus, a natural raw material is also present in the cover fleece as the main component.
  • the cover fleece has an impregnation with an insect repellent, in particular with a moth repellent.
  • the cover fleece can be impregnated before being introduced into the mold with an insect repellent, preferably the wool used to produce the cover fleece is impregnated with an insect repellent prior to the production of the cover fleece.
  • the wool is impregnated with Aflammit - e.g. by diving - become.
  • cover fleece is about 2 to 5 mm thick and / or has a basis weight of 270 to 450 g / m 2, preferably about 300 g / m 2 .
  • the content of wool fibers about 80 wt.% And the content of binder fiber about 20 wt.%.
  • the binder fiber is preferably PE (polyethylene) or PLA (poly (lactic acid)), PP (polypropylene) or a combination thereof.
  • PE polyethylene
  • PLA poly (lactic acid)
  • PP polypropylene
  • Such a mixture is processed by means of nonwoven production to form a non-woven material about 2 to 5 mm thick with about 300 g / m 2 .
  • cover fleece can be soaked throughout with water glass and dried to ensure greater mechanical stability and adequate fire protection. Therefore, it is preferably provided that the cover fleece is impregnated with a thickening agent, preferably water glass, and then dried. The acoustic insulation panel is then designed such that the cover fleece has a thickening agent.
  • the binder comprises the mixture of wool fibers and binder fibers PE, PLA or PP.
  • the mixing ratio in the mixture of wool fibers and binder fibers based on the respective mass is between 70:30 and 50:50.
  • the mixture of wool fibers and binder preferably have an impregnation with insect repellent.
  • the wool fibers of the mixture of wool fibers and binder fibers are impregnated with an insect repellent prior to mixing.
  • the acoustic insulation board in this case is characterized by a first region having a density of 250 to 350 kg / m 3 and a second region, which is different from the first, having a density of 300 to 450 kg / m 3 .
  • the finished acoustic insulation board is thus produced by fiber blowing technology, ie, if necessary, the cover fleece is placed in a mold, then the wool fiber / binder fiber mixture is blown in the form of a wool fiber / binder cake. This is preferably up to about 50 cm high.
  • This wool fiber / binder fiber mixture is heated by means of hot air. Once the complete heating has taken place, the mixture is also pressed with the cover fleece to a plate.
  • the plate is made of standing fiber. This results in a porous structure which allows a high sound absorption and still gives a dimensionally stable plate. Due to the stiffness, the plate can be mounted on a battens without sagging. Therefore, the underlying air space additionally allows further sound absorption. At the same time the plate can be deformed 2D and 3D due to its elasticity and therefore can be used very versatile.
  • the wool of the mixture may also be pretreated and e.g. be impregnated with Aflammit. Then it can be cut and mixed with binder fiber.
  • a finished acoustic insulation panel may e.g. 900 mm * 900 mm with a thickness of 12 mm, showing a mass of approx. 3 kg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Verfahren zur Herstellung einer Akustikdämmplatte, umfassend die Schritte i) Einbringen einer Mischung aus Wollfasern und Bindefasern in eine Form; ii) Erhitzen der Mischung aus Wollfasern und Bindefasern, vorzugsweise mittels Heißluft; iii) Verpressen der Mischung aus Wollfasern und Bindefasern zu einer Platte und iv) Gegebenenfalls Kühlen der verpressten Mischung aus Wollfasern und Bindefasern.A method of making an acoustic insulating panel comprising the steps i) introducing a mixture of wool fibers and binder fibers into a mold; ii) heating the mixture of wool fibers and binder fibers, preferably by means of hot air; iii) pressing the mixture of wool fibers and binder fibers into a plate and iv) Optionally, cooling the compressed blend of wool fibers and binder fibers.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer Akustikdämmplatte. Weiters betrifft die Erfindung eine Akustikdämmplatte.The present invention relates to a method for producing an acoustic insulation board. Furthermore, the invention relates to an acoustic insulation board.

Um Beeinträchtigungen durch Lärm zu reduzieren, werden Wände und Decken von Räumen mit Akustikdämmplatten versehen. Diese vermindern die Reflexion von Schallwellen an den Wänden und Decken und reduzieren somit den Lärmpegel im Raum. Ein erhöhter Lärmpegel wie er z.B. in Großraumbüros, Verkaufsflächen oder in Fertigungshallen auftritt, kann eine Beeinträchtigung für die darin befindliche Personen darstellen.In order to reduce the effects of noise, walls and ceilings of rooms are provided with acoustic insulation panels. These reduce the reflection of sound waves on the walls and ceilings and thus reduce the noise level in the room. An increased noise level such as e.g. may occur in open-plan offices, sales areas or production halls, may be detrimental to the persons in them.

Im Stand der Technik sind bereits einige Akustikdämmplatten beschrieben, die allerdings meist die gestellten technischen und optischen Herausforderungen nicht erfüllen. Solche Akustikdämmplatten müssen neben der Verminderung der Schallreflexion auch bestimmte statische Eigenschaften erfüllen, wenn z.B. Gegenstände (wie Lichtquellen) daran befestigt werden sollen. Darüber hinaus sollen sich die Akustikdämmplatten auch optisch in den Raum einfügen. Insbesondere werden sichtbare Kanten im Bereich der Stöße von aneinandergrenzenden Platten als störend empfunden. Außerdem besteht ein zunehmender Wunsch bei Kunden nach nachhaltigen Rohstoffen, sodass die Akustikdämmplatten zu einem großen Teil einer Wiederverwertung oder einer natürlichen Entsorgung zugänglich sein sollen.In the prior art, some acoustic insulation panels are already described, which, however, usually do not meet the technical and optical challenges. Such acoustic panels, in addition to reducing sound reflection, must also meet certain static characteristics, e.g. Objects (such as light sources) to be attached to it. In addition, the acoustic insulation panels should also fit visually into the room. In particular, visible edges in the region of the joints of adjacent plates are perceived as disturbing. There is also an increasing demand from customers for sustainable raw materials, so that the acoustic panels should be largely accessible to recycling or natural disposal.

Diese Herausforderungen hat der Stand der Technik bislang noch nicht ausreichend gemeistert.These challenges have not yet sufficiently mastered the state of the art.

Aufgabe der vorliegenden Erfindung ist daher die Bereitstellung einer Akustikdämmplatte, welche die oben genannten Eigenschaften erfüllt.The object of the present invention is therefore to provide an acoustic insulation panel which fulfills the above-mentioned properties.

Gelöst wird diese Aufgabe einerseits durch ein Verfahren zur Herstellung einer Akustikdämmplatte, umfassend die Schritte

  1. i) Einbringen einer Mischung aus Wollfasern und Bindefasern in eine Form;
  2. ii) Erhitzen der Mischung aus Wollfasern und Bindefasern, vorzugsweise mittels Heißluft;
  3. iii) Verpressen der Mischung aus Wollfasern und Bindefasern zu einer Platte;
  4. iv) gegebenenfalls Kühlen der verpressten Mischung aus Wollfasern und Bindefasern.
On the one hand, this object is achieved by a method for producing an acoustic insulation panel comprising the steps
  1. i) introducing a mixture of wool fibers and binder fibers into a mold;
  2. ii) heating the mixture of wool fibers and binder fibers, preferably by means of hot air;
  3. iii) pressing the blend of wool fibers and binder fibers into a sheet;
  4. iv) optionally cooling the compressed blend of wool fibers and binder fibers.

Gelöst wird die Aufgabe aber auch durch eine Akustikdämmplatte, umfassend eine Mischung aus Wollfaser und Bindemittel mit wenigstens zwei Bereichen mit unterschiedlicher Dichte. Dieser Teil der Akustikdämmplatte wird nachfolgend auch als Kernbereich bezeichnet.However, the object is also achieved by an acoustic insulation panel comprising a mixture of wool fiber and binder with at least two areas of different density. This part of the acoustic insulation board is also referred to below as the core area.

Die Verwendung derartiger Akustikdämmplatten hat nicht nur den Vorteil, dass Wolle ein natürlich nachwachsender, recyclebarer Rohstoff ist, sondern es zeigt sich auch, dass die Stöße von benachbarten, aneinandergrenzenden Akustikdämmplatten mit freiem Auge nicht erkennbar sind. Dies ist darauf zurückzuführen, dass die Akustikdämmplatten an den Kanten einerseits komprimierbar sind und andererseits eine leichte Rauhigkeit aufweisen, sodass beim Aufeinanderdrücken zweier Kanten kein Stoß erkennbar bleibt.The use of such acoustic insulation panels not only has the advantage that wool is a naturally renewable, recyclable raw material, but it also shows that the shocks from adjacent, adjacent acoustic insulation panels are not visible to the naked eye. This is due to the fact that the acoustic insulation panels on the edges are on the one hand compressible and on the other hand have a slight roughness, so that when pushing together two edges no shock remains recognizable.

Die Mischung aus Wollfasern mit Bindemittel - insbesondere Bindefasern - zeigt außerdem einen sehr hohen Wirkungsgrad in der Reduktion der Schallreflexion. Außerdem ist die mechanische Stabilität solcher Platten ausreichend, um z.B. an der Decke Leuchten oder Lichtquellen aufnehmen zu können oder um an Wänden Gegenstände (Bilder, Tafeln etc.) befestigen zu können. Die Akustikdämmplatte ist freitragend.The mixture of wool fibers with binder - especially binder fibers - also shows a very high efficiency in the reduction of sound reflection. In addition, the mechanical stability of such plates is sufficient, for example, to be able to record lights or light sources on the ceiling or to attach objects (pictures, panels, etc.) to walls. The acoustic insulation board is self-supporting.

Bevorzugt umfasst die Akustikdämmplatte außerdem ein Deckvlies. In diesem Fall erfolgt beim Herstellungsverfahren zuerst ein Einbringen eines Deckvlieses in eine Form und danach das Einbringen einer Mischung aus Wollfasern und Bindefasern in die Form und zwar auf das Deckvlies.The acoustic insulation panel preferably also comprises a cover fleece. In this case, in the manufacturing process, first a introduction of a cover fleece in a mold and then the introduction of a mixture of wool fibers and binder fibers in the form and that on the cover fleece.

Gegebenenfalls kann noch ein zweites Deckvlies vorgesehen sein, welches auf der gegenüberliegenden Seite des ersten Deckvlieses angeordnet ist. In diesem Fall wird beim Herstellungsverfahren nach dem Einbringen einer Mischung aus Wollfasern und Bindefasern in die Form und vor dem Erhitzen der Mischung aus Wollfasern und Bindefasern, vorzugsweise mittels Heißluft, das zweite Deckvlies eingebracht. Dies gewährleistet eine gute Verbindung zwischen Deckvlies und Kernbereich.Optionally, a second cover fleece may be provided, which is arranged on the opposite side of the first cover fleece. In this case, in the manufacturing process after introducing a mixture of wool fibers and binder fibers into the mold and before heating the mixture of wool fibers and binder fibers, preferably by means of hot air, the second cover fleece is introduced. This ensures a good connection between cover fleece and core area.

Die Akustikdämmplatte, umfasst bei Vorhandensein eines Deckvlieses neben dem Deckvlies eine darauf angeordneten Mischung aus Wollfaser und Bindemittel, wobei die Mischung wenigstens zwei Bereiche mit unterschiedlicher Dichte aufweist. Sind zwei Deckvliese vorhanden, so ist zwischen den beiden Deckvliesen die Mischung aus Wollfaser und Bindemittel mit wenigstens zwei Bereichen mit unterschiedlicher Dichte.The acoustic insulation panel comprises, in the presence of a cover fleece next to the cover fleece disposed thereon a mixture of wool fiber and binder, wherein the mixture has at least two areas with different density. If two cover fleeces are present, then between the two cover fleeces is the mixture of wool fiber and binder with at least two regions with different density.

Besonders bevorzugt ist vorgesehen, dass nach dem Erhitzen und Verpressen noch ein Kühlschritt vorgesehen ist.It is particularly preferred that after cooling and pressing a cooling step is provided.

Nachfolgend werden vorteilhafte Ausgestaltungen sowohl des Verfahrens als auch der Akustikdämmplatte selbst parallel beschrieben.In the following, advantageous embodiments of both the method and the acoustic insulation panel itself will be described in parallel.

Deckvlies:Cover fleece:

Bevorzugt umfasst das Deckvlies Wolle und Bindemittel, vorzugsweise Bindefasern. Es kann vorgesehen sein, dass das Deckvlies durch ein Vliesherstellungsverfahren aus Wolle und Bindefasern hergestellt wird. Damit ist auch im Deckvlies ein natürlicher Rohstoff als Hauptkomponente vorhanden.Preferably, the cover fleece comprises wool and binder, preferably binder fibers. It can be provided that the cover fleece is produced by a nonwoven fabric manufacturing process of wool and binder fibers. Thus, a natural raw material is also present in the cover fleece as the main component.

Es hat sich als vorteilhaft herausgestellt, wenn das Deckvlies eine Imprägnierung mit einem Insektenschutzmittel, insbesondere mit einem Mottenschutzmittel, aufweist. Dazu kann das Deckvlies vor dem Einbringen in die Form mit einem Insektenschutzmittel imprägniert werden, vorzugsweise wird die Wolle, die zur Herstellung des Deckvlieses eingesetzt wird, vor der Herstellung des Deckvlieses mit einem Insektenschutzmittel imprägniert.It has proven to be advantageous if the cover fleece has an impregnation with an insect repellent, in particular with a moth repellent. For this purpose, the cover fleece can be impregnated before being introduced into the mold with an insect repellent, preferably the wool used to produce the cover fleece is impregnated with an insect repellent prior to the production of the cover fleece.

In einer Ausführungsvariante wird die Wolle mit Aflammit imprägniert - z.B. durch Tauchen - werden.In one embodiment, the wool is impregnated with Aflammit - e.g. by diving - become.

Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, dass das Deckvlies etwa 2 bis 5 mm dick ist und/oder ein Flächengewicht von 270 bis 450 g/m2 vorzugsweise etwa 300 g/m2 aufweist. Diese Maßnahmen gewährleisten eine hohe mechanische Stabilität der fertigen Akustikdämmplatte.An advantageous embodiment of the invention provides that the cover fleece is about 2 to 5 mm thick and / or has a basis weight of 270 to 450 g / m 2, preferably about 300 g / m 2 . These measures ensure a high mechanical stability of the finished acoustic insulation board.

Bevorzugt ist vorgesehen, dass der Gehalt an Wollfasern etwa 80 Gew.% und der Gehalt an Bindefaser etwa 20 Gew.% ausmacht. Die Bindefaser ist bevorzugt PE (Polyethylen) oder PLA (Poly(lactic acid)), PP (Polypropylen) oder eine Kombination daraus. Ein solches Gemisch wird mittels Vliesproduktion zu einem ca. 2 bis 5 mm dicken Vlies mit ca. 300 g/m2 verarbeitet.Preferably, it is provided that the content of wool fibers about 80 wt.% And the content of binder fiber about 20 wt.%. The binder fiber is preferably PE (polyethylene) or PLA (poly (lactic acid)), PP (polypropylene) or a combination thereof. Such a mixture is processed by means of nonwoven production to form a non-woven material about 2 to 5 mm thick with about 300 g / m 2 .

Zur weiteren Stabilisierung kann das Deckvlies durchgehend mit Wasserglas durchtränkt und getrocknet werden, um eine höhere mechanische Stabilität und ausreichenden Brandschutz zu gewährleisten. Daher ist bevorzugt vorgesehen, dass das Deckvlies mit einem Verdickungsmittel, vorzugsweise Wasserglas, durchtränkt und anschließend getrocknet wird. Die Akustikdämmplatte ist dann derart ausgebildet, dass das Deckvlies ein Verdickungsmittel aufweist.To further stabilize the cover fleece can be soaked throughout with water glass and dried to ensure greater mechanical stability and adequate fire protection. Therefore, it is preferably provided that the cover fleece is impregnated with a thickening agent, preferably water glass, and then dried. The acoustic insulation panel is then designed such that the cover fleece has a thickening agent.

Mischung aus Wollfasern und Bindemittelfasern (Kernbereich):Mixture of wool fibers and binder fibers (core area):

Bevorzugt ist vorgesehen, dass das Bindemittel der Mischung aus Wollfasern und Bindefasern PE, PLA oder PP umfasst.It is preferably provided that the binder comprises the mixture of wool fibers and binder fibers PE, PLA or PP.

Weiters ist bevorzugt vorgesehen, dass das Mischungsverhältnis in der Mischung aus Wollfasern und Bindefasern bezogen auf die jeweilige Masse zwischen 70:30 und 50:50 beträgt.Furthermore, it is preferably provided that the mixing ratio in the mixture of wool fibers and binder fibers based on the respective mass is between 70:30 and 50:50.

Die Mischung aus Wollfasern und Bindemittel weisen bevorzugt eine Imprägnierung mit Insektenschutzmittel auf. Dazu werden beispielsweise die Wollfasern der Mischung von Wollfasern und Bindefasern vor dem Mischen mit einem Insektenschutzmittel imprägniert.The mixture of wool fibers and binder preferably have an impregnation with insect repellent. For this purpose, for example, the wool fibers of the mixture of wool fibers and binder fibers are impregnated with an insect repellent prior to mixing.

Für eine besonders gute Schalldämmung haben sich Akustikdämmplatten als vorteilhaft erwiesen, die unterschiedliche Bereiche mit verschiedenen Dichten aufweisen. Dazu kann vorgesehen sein, dass das Einbringen der Mischung aus Wollfasern und Bindefasern in die Form derart erfolgt, dass vor dem Erhitzen bereichsweise unterschiedliche Mengen an Mischung gleichmäßig komprimiert oder gleiche Mengen an Mischung unterschiedlich stark komprimiert werden. Die erste Variante zeigt allerdings bessere Eigenschaften.For a particularly good sound insulation acoustic panels have proven to be advantageous, having different areas with different densities. For this purpose, it can be provided that the introduction of the mixture of wool fibers and binder fibers into the mold takes place in such a way that different amounts of mixture are uniformly compressed prior to heating or equal amounts of mixture are compressed to different degrees. The first variant, however, shows better properties.

Die Akustikdämmplatte ist in diesem Fall gekennzeichnet durch einen ersten Bereich mit einer Dichte von 250 bis 350 kg/m3 und einen zweiten - vom ersten unterschiedlichen - Bereich mit einer Dichte von 300 bis 450 kg/m3.The acoustic insulation board in this case is characterized by a first region having a density of 250 to 350 kg / m 3 and a second region, which is different from the first, having a density of 300 to 450 kg / m 3 .

Die fertige Akustikdämmplatte wird also mittels Fasereinblastechnologie hergestellt, d.h., gegebenenfalls wird das Deckvlies wird in eine Form eingelegt, danach wird das Wollfaser/Bindefasergemisch in Form eines Wollfaser/Bindefaserkuchens eingeblasen. Bevorzugt ist dieser bis ca. 50 cm hoch. Dieses Wollfaser/Bindefasergemisch wird mittels Heißluft erhitzt. Sobald die vollständige Durchheizung erfolgt ist, wird das Gemisch auch mit dem Deckvlies zu einer Platte verpresst. Durch diese Fertigung besteht die Platte aus stehender Faser. Dies ergibt eine poröse Struktur die einen hohe Schallabsorption ermöglicht und trotzdem eine Formsteife Platte ergibt. Durch die Formsteifigkeit kann die Platte auf eine Lattung montiert werden, ohne durchzuhängen. Deshalb ermöglicht der dahinterliegende Luftraum zusätzlich eine weitere Schallabsorption. Gleichzeitig lässt sich die Platte aufgrund ihrer Elastizität 2D und 3D verformen und daher sehr vielseitig eingesetzt werden.The finished acoustic insulation board is thus produced by fiber blowing technology, ie, if necessary, the cover fleece is placed in a mold, then the wool fiber / binder fiber mixture is blown in the form of a wool fiber / binder cake. This is preferably up to about 50 cm high. This wool fiber / binder fiber mixture is heated by means of hot air. Once the complete heating has taken place, the mixture is also pressed with the cover fleece to a plate. Through this manufacturing, the plate is made of standing fiber. This results in a porous structure which allows a high sound absorption and still gives a dimensionally stable plate. Due to the stiffness, the plate can be mounted on a battens without sagging. Therefore, the underlying air space additionally allows further sound absorption. At the same time the plate can be deformed 2D and 3D due to its elasticity and therefore can be used very versatile.

Die Wolle des Gemisches kann ebenfalls vorbehandelt werden und z.B. mit Aflammit imprägniert werden. Danach kann sie geschnitten und mit Bindefaser vermischt weden.The wool of the mixture may also be pretreated and e.g. be impregnated with Aflammit. Then it can be cut and mixed with binder fiber.

Eine fertige Akustikdämmplatte kann z.B. 900 mm * 900 mm bei einer Dicke von 12 mm aufweisen und dabei eine Masse von ca. 3 kg zeigen.A finished acoustic insulation panel may e.g. 900 mm * 900 mm with a thickness of 12 mm, showing a mass of approx. 3 kg.

Claims (15)

Verfahren zur Herstellung einer Akustikdämmplatte, umfassend die Schritte i) Einbringen einer Mischung aus Wollfasern und Bindefasern in eine Form; ii) Erhitzen der Mischung aus Wollfasern und Bindefasern, vorzugsweise mittels Heißluft; iii) Verpressen der Mischung aus Wollfasern und Bindefasern zu einer Platte und iv) gegebenenfalls Kühlen der verpressten Mischung aus Wollfasern und Bindefasern. A method of making an acoustic insulating panel comprising the steps i) introducing a mixture of wool fibers and binder fibers into a mold; ii) heating the mixture of wool fibers and binder fibers, preferably by means of hot air; iii) pressing the mixture of wool fibers and binder fibers into a plate and iv) optionally cooling the compressed blend of wool fibers and binder fibers. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zumindest ein Deckvlies vorgesehen ist, welches zuerst in die Form eingebracht wird, wobei danach die Mischung aus Wollfasern und Bindefasern in die Form eingebracht wird.A method according to claim 1, characterized in that at least one cover fleece is provided, which is first introduced into the mold, after which the mixture of wool fibers and binder fibers is introduced into the mold. Verfahren nach Anspruch 1 oder Anspruch 2, gekennzeichnet durch ein zweites Deckvlies, welches nach dem Einbringen der Mischung aus Wollfasern und Bindefasern in die Form und vor dem Erhitzen der Mischung aus Wollfasern und Bindefasern, vorzugsweise mittels Heißluft, in die Form eingebracht wird.A method according to claim 1 or claim 2, characterized by a second cover fleece, which is introduced into the mold after introducing the mixture of wool fibers and binder fibers into the mold and before heating the mixture of wool fibers and binder fibers, preferably by means of hot air. Verfahren nach Anspruch 2 oder Anspruch 3, dadurch gekennzeichnet, dass das Deckvlies durch ein Vliesherstellungsverfahren aus Wolle und Bindefasern hergestellt wird.A method according to claim 2 or claim 3, characterized in that the cover fleece is produced by a nonwoven fabric manufacturing process of wool and binder fibers. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass das Deckvlies vor dem Einbringen in die Form mit einem Insektenschutzmittel imprägniert wird, vorzugsweise wird die Wolle des Deckvlieses vor dessen Herstellung mit einem Insektenschutzmittel imprägniert.Method according to one of claims 2 to 4, characterized in that the cover fleece is impregnated prior to introduction into the mold with an insect repellent, preferably the wool of the cover fleece prior to its manufacture impregnated with an insect repellent. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Bindefaser der Mischung aus Wollfasern und Bindefasern PE oder PLA umfasst.Method according to one of claims 1 to 4, characterized in that the binder fiber comprises the mixture of wool fibers and binder fibers PE or PLA. Verfahren nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass das Deckvlies mit einem Verdickungsmittel, vorzugsweise Wasserglas, durchtränkt und anschließend getrocknet wird.Method according to one of claims 2 to 5, characterized in that the cover fleece is impregnated with a thickening agent, preferably water glass, and then dried. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Mischungsverhältnis in der Mischung aus Wollfasern und Bindefasern bezogen auf die jeweilige Masse zwischen 30 : 70 und 50 : 50 beträgt.Method according to one of claims 1 to 7, characterized in that the mixing ratio in the mixture of wool fibers and binder fibers based on the respective mass between 30: 70 and 50: 50. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Wollfasern aus der Mischung aus Wollfasern und Bindefasern mit einem Insektenschutzmittel imprägniert werde.Method according to one of claims 1 to 8, characterized in that the wool fibers from the mixture of wool fibers and binder fibers are impregnated with an insect repellent. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Einbringen der Mischung aus Wollfasern und Bindefasern in die Form auf das Deckvlies derart erfolgt, dass vor dem Erhitzen bereichsweise unterschiedliche Mengen an Mischung in die Form eingebracht werden.Method according to one of claims 1 to 9, characterized in that the introduction of the mixture of wool fibers and binder fibers in the mold on the cover fleece takes place in such a way that before heating partially different amounts of mixture are introduced into the mold. Akustikdämmplatte, umfassend
eine Mischung aus Wollfaser und Bindemittel mit wenigstens zwei Bereichen mit unterschiedlicher Dichte.Acoustic insulating panel comprising
a blend of wool fiber and binder with at least two regions of different density. Akustikdämmplatte nach Anspruch 11, dadurch gekennzeichnet, dass zumindest ein Deckvlies vorgesehen ist, auf welchem die Mischung aus Wollfaser und Bindemittel angeordnet ist.Acoustic insulating panel according to claim 11, characterized in that at least one cover fleece is provided, on which the mixture of wool fiber and binder is arranged. Akustikdämmplatte nach Anspruch 12, dadurch gekennzeichnet, dass das Deckvlies Wolle und Bindemittel umfasst.Acoustic insulating panel according to claim 12, characterized in that the cover fleece comprises wool and binder. Akustikdämmplatte nach einem de Ansprüche 11 bis 13, dadurch gekennzeichnet, dass das Deckvlies etwa 2 bis 5 mm dick ist und/oder ein Flächengewicht von 270 bis 450 g/m2 aufweist.Acoustic insulating panel according to any one of claims 11 to 13, characterized in that the cover fleece is about 2 to 5 mm thick and / or has a basis weight of 270 to 450 g / m 2 . Akustikdämmplatte nach einem der Ansprüche 10 bis 17, gekennzeichnet durch einen ersten Bereich mit einer Dichte von 200 bis 350 kg/m3 und einen zweiten - vom ersten unterschiedlichen - Bereich mit einer Dichte von 300 bis 450 kg/m3.Acoustic insulating panel according to any one of claims 10 to 17, characterized by a first region having a density of 200 to 350 kg / m 3 and a second - different from the first - region having a density of 300 to 450 kg / m 3 .
EP17151508.3A 2017-01-13 2017-01-13 Acoustic insulation plate Withdrawn EP3348727A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17151508.3A EP3348727A1 (en) 2017-01-13 2017-01-13 Acoustic insulation plate
EP18700294.4A EP3568537A1 (en) 2017-01-13 2018-01-12 Acoustic-insulating panel
PCT/EP2018/050719 WO2018130635A1 (en) 2017-01-13 2018-01-12 Acoustic-insulating panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17151508.3A EP3348727A1 (en) 2017-01-13 2017-01-13 Acoustic insulation plate

Publications (1)

Publication Number Publication Date
EP3348727A1 true EP3348727A1 (en) 2018-07-18

Family

ID=57799612

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17151508.3A Withdrawn EP3348727A1 (en) 2017-01-13 2017-01-13 Acoustic insulation plate
EP18700294.4A Withdrawn EP3568537A1 (en) 2017-01-13 2018-01-12 Acoustic-insulating panel

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18700294.4A Withdrawn EP3568537A1 (en) 2017-01-13 2018-01-12 Acoustic-insulating panel

Country Status (2)

Country Link
EP (2) EP3348727A1 (en)
WO (1) WO2018130635A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005008962U1 (en) * 2005-06-08 2006-10-12 Baur, Friedrich Insulation is made from renewable material comprising basic fibers and supporting fibers, supporting fibers having heat-resistant core and sheath of material with low melting point
WO2012095562A1 (en) * 2011-01-12 2012-07-19 Acoustic Group Oy Coating and its manufacturing process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005008962U1 (en) * 2005-06-08 2006-10-12 Baur, Friedrich Insulation is made from renewable material comprising basic fibers and supporting fibers, supporting fibers having heat-resistant core and sheath of material with low melting point
WO2012095562A1 (en) * 2011-01-12 2012-07-19 Acoustic Group Oy Coating and its manufacturing process

Also Published As

Publication number Publication date
WO2018130635A1 (en) 2018-07-19
EP3568537A1 (en) 2019-11-20

Similar Documents

Publication Publication Date Title
DE69531227T2 (en) Thermal, acoustic and vibration absorbing modular panel
AT511513B1 (en) COMPOSITE ELEMENT
EP3241462B1 (en) Furniture and/or partition structure element
DE202016100525U1 (en) Schallabsorptionslement
DE1053173B (en) Porous sound absorbing sheet and process for its manufacture
DE102007033613A1 (en) sound absorber
DE3524115A1 (en) Lightweight building material from mineral building materials
EP3348727A1 (en) Acoustic insulation plate
DE102016009147A1 (en) Wall and / or ceiling plate and method for its production
DE4223614A1 (en) Building insulation material of high stability - comprising fibre containing flax and in form of mat equipped with lockstitch seams
DE102022116863A1 (en) Plate-shaped element for wall and ceiling cladding
CH623880A5 (en) Multilayered fireproof composite panel
DE102007018774A1 (en) Facade insulation board for the insulation of external facades of buildings, thermal insulation composite system with such facade insulation panels and method for producing a facade insulation board
DE202010011657U1 (en) Furnishing element
DE202012104480U1 (en) Wood veneer and veneered building board
EP0353397A1 (en) Translucent construction element for a rigid roofing
CH668282A5 (en) ACOUSTIC INSULATION BOARD, METHOD FOR PRODUCING THE SAME AND DEVICE FOR CARRYING OUT THIS METHOD.
DE1808187A1 (en) Building board, especially for soundproofing and fire protection
DE102005028465A1 (en) Material for sound insulation consists of layer of leather fiber material coated on at least one side with layer of water-insoluble polymer material
EP0894909B1 (en) Laminated insulating element
DE102019108691A1 (en) INSULATING MATERIAL, METHOD FOR MANUFACTURING SUCH INSULATING MATERIAL AND USE OF SUCH INSULATING MATERIAL
EP2217769B3 (en) Non-combustible absorber element for heat and/or sound damping and method for the production of said absorber element
DE102013009565A1 (en) acoustic module
DE4311195A1 (en) insulating material
DE10055481A1 (en) Self-supporting panel consists of at least two interconnected sub-panels of natural fibers, and has reinforcing elements, with sub-panels compressed

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190119