DE202005008962U1 - 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 - Google Patents

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 Download PDF

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DE202005008962U1
DE202005008962U1 DE202005008962U DE202005008962U DE202005008962U1 DE 202005008962 U1 DE202005008962 U1 DE 202005008962U1 DE 202005008962 U DE202005008962 U DE 202005008962U DE 202005008962 U DE202005008962 U DE 202005008962U DE 202005008962 U1 DE202005008962 U1 DE 202005008962U1
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fiber
fibers
supporting
insulation
insulation material
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • 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
    • D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
    • 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
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • 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
    • 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
    • D04H1/60—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 dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • E04B1/76—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 heat only
    • E04B1/7654—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 heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—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 heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled 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
    • E04B2001/742—Use of special materials; Materials having special structures or shape
    • E04B2001/743—Animal products, e.g. wool, feathers
    • 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
    • E04B1/76—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 heat only
    • E04B2001/7687—Crumble resistant fibrous blankets or panels using adhesives or meltable fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Building Environments (AREA)

Abstract

The insulation is made from renewable material comprising basic fibers and supporting fibers (6). The supporting fibers have a heat-resistant core (10) and a sheath (8) of material with a low melting point.

Description

Die Erfindung betrifft einen Dämmstoff basierend auf nachwachsenden Rohstoffen.The The invention relates to an insulating material based on renewable raw materials.

Dämmstoffe basierend auf nachwachsenden Rohstoffen werden zur Wärme- und Schallisolierung zunehmend eingesetzt und spielen insbesondere auf dem Bausektor beim Hausbau eine wichtige Rolle. Sie zählen mittlerweile zu den wichtigsten Naturprodukten beim Hausbau.insulation materials based on renewable raw materials are used for heating and Soundproofing increasingly used and play in particular on the Construction sector plays an important role in house building. They count meanwhile to the most important natural products in house building.

Als nachwachsende Rohstoffe werden hierbei unterschiedliche Naturstoffe, wie beispielsweise Wolle, Flachs, Hanf, Getreide sowie Produkte aus Zellulose und Holz eingesetzt. Einer stärkeren Verbreitung derartiger Dämmstoffe basierend auf nachwachsenden Rohstoffen steht oftmals ihr etwas höherer Preis sowie eine gewisse Skepsis der Verbraucher entgegen. Der höhere Preis ergibt sich im Vergleich zu anderen Dämmstoffen aufgrund höherer Rohstoffpreise oder auch aufgrund von aufwändigeren Herstellungsverfahren.When Renewable raw materials are different natural substances, such as wool, flax, hemp, grain and products made of cellulose and wood. A stronger dissemination of such insulation materials Based on renewable resources is often something you higher Price as well as a certain skepticism of consumers. The higher price results in comparison to other insulating materials due to higher raw material prices or because of more elaborate ones Production method.

So besteht zwar die Möglichkeit, mit Schurwolle einen geeigneten Dämmstoff auszubilden. Bei der Verwendung von reiner Schurwolle wird jedoch eine große Menge an Schurwolle benötigt, wodurch der Dämmstoff insgesamt kostenintensiv ist. Große Dämmdicken bis zu 22 cm sind aus 100 % Wolle nur schwer zu erreichen, da das Material bei der Verarbeitung zerfällt. Gleichwohl bietet der Dämmstoff bestehend aus Schafschurwolle hervorragende Eigenschaften und kommt zudem ohne bzw. ohne nennenswerte Zusatzstoffe, wie beispielsweise Flammschutzmittel, aus.So although it is possible to form a suitable insulating material with new wool. In the However, using pure new wool will be a great deal needed on new wool, whereby the insulating material Overall, it is costly. Large insulation thicknesses up to 22 cm are Made of 100% wool difficult to achieve because the material in the Processing breaks down. Nevertheless, the insulation material consisting of sheep's wool excellent properties and comes In addition, without or without significant additives, such as Flame retardant, off.

Um den Verbrauch an Schafschurwolle zu verringern, besteht die Möglichkeit der Beimischung von Stützfasern, so dass bei vergleichbaren Dämmeigenschaften ein geringerer Anteil an Schafschurwolle ausreichend ist, wodurch insgesamt eine Kostenreduktion erzielt wird. Geeignete Stützfasern bestehen jedoch aus Kunststofffasern, so dass das Ziel, einen kostengünstigen Dämmstoff möglichst vollständig aus nachwachsenden Rohstoffen bereitzustellen, nicht erreicht wird. Außerdem wird durch die Verwendung von synthetischen Fasern der Einsatz eines Flammschutzmittels notwendig.Around to reduce the consumption of sheep's wool, there is the possibility the admixture of supporting fibers, so that with comparable insulation properties a lesser amount of sheep's wool is sufficient, thereby Overall, a cost reduction is achieved. Suitable supporting fibers However, made of plastic fibers, so the goal is a cost-effective insulation preferably Completely from renewable raw materials is not achieved. Furthermore Through the use of synthetic fibers, the use of a Flame retardant necessary.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen kostengünstigen Dämmstoff zumindest zu annähernd 100% aus nachwachsenden Rohstoffen bereitzustellen.Of the The present invention is therefore based on the object, a cost-effective insulation at least too close To provide 100% of renewable raw materials.

Die Aufgabe wird gemäß der Erfindung gelöst durch einen Dämmstoff gemäß Anspruch 1. Danach ist der Dämmstoff im Wesentlichen gebildet aus einem Grundfaseranteil einer Grundfaser aus einem nachwachsenden Rohstoff sowie aus einem Stützfaseranteil einer im Ausgangszustand zweikomponentigen Stützfaser aus einem nachwachsenden Rohstoff. Die Stützfaser besteht im Ausgangszustand hierbei aus einem hochschmelzenden Kern und einem niedrigschmelzenden Mantel.The Task is according to the invention solved through an insulating material according to claim 1. Thereafter, the insulating material essentially formed from a base fiber portion of a base fiber from a renewable raw material as well as from a supporting fiber portion a two-component in the initial state support fiber from a renewable Raw material. The support fiber In the initial state, this consists of a refractory core and a low melting coat.

Zweckdienlicherweise ist im verarbeiteten Zustand der niedrigschmelzende Mantel aufgeschmolzen und das aufgeschmolzene Material verfestigt die Grundfasern nach Art eines Klebers.Conveniently, is melted in the processed state of the low-melting jacket and the molten material solidifies the base fibers Kind of an adhesive.

Durch die Verwendung auch einer Stützfaser aus einem nachwachsenden Rohstoff wird das Ziel eines kostengünstigen und nahezu aus 100% aus nachwachsenden Rohstoffen bestehenden Dämmstoffes erfüllt. Die im Ausgangszustand als Bikomponentenfaser vorliegende Stützfaser sorgt für einen vergleichsweise geringen Verbrauch des Grundfaseranteils bei guten Dämmeigenschaften. Bei der Herstellung wird das Gemisch aus den Grundfasern und den Bikomponenten-Stützfasern auf eine Temperatur oberhalb der Schmelztemperatur des niedrigschmelzenden Mantels, jedoch unterhalb des hochschmelzenden Kerns erhitzt. Dabei schmilzt der niedrigschmelzende Mantel auf und legt sich um die Fasern des Grundfaseranteils. Durch eine anschließende Abkühlung verfestigt sich das niedrigschmelzende Material wieder, so dass die vorliegende Faserstruktur „eingefroren" wird, d.h. die einzelnen Fasern des Dämmstoffs sind miteinander verfestigt.By the use of a support fiber a renewable resource will be the target of a cost effective and almost 100% renewable raw materials Fulfills. The present in the initial state as a bicomponent fiber supporting fiber takes care of a comparatively low consumption of the basic fiber content good insulation properties. In the production, the mixture of the base fibers and the Bicomponent supporting fibers to a temperature above the melting temperature of the low-melting point Mantels, but heated below the refractory core. there The low-melting coat melts and settles around the Fibers of the basic fiber fraction. Solidified by a subsequent cooling the low-melting material, so that the present Fiber structure is "frozen", i.e. the individual ones Fibers of the insulating material are solidified with each other.

Gemäß einer zweckdienlichen Weiterbildung wird für die Stützfasern ein durch eine Fermentierung pflanzlicher Zuckerbausteine hergestelltes Polymer verwendet. Der pflanzliche Ausgangsstoff ist hierbei insbesondere Mais. Derartige Stützfasern sind beispielsweise unter dem Handelsnamen INGEO auf dem Markt erhältlich. Diese Stützfasern sind daher auf rein pflanzlicher Basis und damit aus nachwachsenden Rohstoffen hergestellt.According to one expedient training is for the supporting fibers by a fermentation plant Sugar components prepared polymer used. The vegetable The starting material here is corn in particular. Such support fibers are available on the market under the trade name INGEO, for example. These support fibers are therefore purely plant-based and therefore from renewable Produced raw materials.

Gemäß einer bevorzugten Ausgestaltung ist der Grundfaseranteil Wolle, insbesondere Schurwolle.According to one preferred embodiment is the basic fiber content wool, in particular New wool.

Zweckdienlicherweise besteht hierbei der Dämmstoff aus 10–30 Vol% Stützfaseranteil und dem Rest aus Wolle. Zuzüglich ist noch ein geringer Anteil Mottenschutzmittel vorgesehen. Hierbei wird etwa 1 Vol% herkömmliches Mottenschutzmittel, beispielsweise Harnstoffderivate beigegeben. Die Kombination, insbesondere in den angegebenen Volumenverhältnissen zwischen Wolle und Stützfaser, ergibt ein hochwertiges Produkt mit guten Dämmeigenschaften das leicht und kostengünstig zu verarbeiten ist. Je höher hierbei der Wollanteil ist, desto geringer ist der Stützfaseranteil.Conveniently, this consists of the insulating material from 10-30 Vol% support fiber content and the rest of wool. Plus there is still a small proportion of mothproofing products. in this connection will be about 1 vol% conventional Moth repellent, such as urea derivatives added. The combination, especially in the specified volume ratios between wool and support fiber, makes a high-quality product with good insulation properties that easy and cost-effective is to be processed. The higher Here, the wool content, the lower the support fiber content.

Alternativ zu der Verwendung von Schurwolle können für den Grundfaseranteil auch Pflanzenfasern, beispielsweise aus Flachs o.dgl. verwendet werden.As an alternative to using virgin wool, plant fibers can also be used for the basic fiber content fibers, for example flax or the like. be used.

Gemäß einer bevorzugten Weitergestaltung besteht der Grundfaseranteil aus einer einkomponentigen Faser aus dem Material, aus dem die Stützfaser und insbesondere dessen hochschmelzender Kern gebildet ist. Gemäß dieser Ausbildung ist daher die Kombination einer einkomponentigen mit der bikomponentigen Faser vorgesehen.According to one preferred refinement consists of the basic fiber content of a one-component fiber of the material from which the supporting fiber and in particular its refractory core is formed. According to this Training is therefore the combination of a one-component with the bicomponent fiber provided.

Ein besonderer Vorteil dieser neuartigen Faser auf rein pflanzlicher Basis ist darin zu sehen, dass bei einem vollständig aus dieser Faser bestehenden Dämmstoff vollständig auf weitergehende Mittel, wie Flammschutzmittel oder Mottenschutzmittel verzichtet werden kann und auch verzichtet wird. Der Dämmstoff ist daher vollständig zu 100% aus einem nachwachsenden Rohstoff hergestellt.One particular advantage of this novel fiber on purely vegetable Basis is to see that in an entirely made of this fiber insulating material Completely to other means, such as flame retardants or moth repellent can be waived and is also waived. The insulating material is therefore complete 100% made from a renewable resource.

Um die Handhabung eines den Dämmstoff aufweisenden Dämmmaterials zu vereinfachen und beispielsweise eine Befestigung an Dachsparren zu ermöglichen, ist gemäß einer bevorzugten Ausgestaltung zumindest eine Oberfläche des Dämmstoffs zur Ausbildung eines Dämmmaterials mechanisch verfestigt. Hierzu ist das Dämmmaterial mit einem beispielsweise als Deckvlies oder Trägervlies ausgebildeten Stützvlies versehen, das insbesondere auf die Oberseite des Dämmstoffs genadelt ist und eine ausreichend mechanische Festigkeit aufweist. Das Stützvlies ist zur Aufnahme beispielsweise der über Befestigungselemente wie Klammern übertragenen Kräfte geeignet, ohne dass das Dämmmaterial ausreist. Vorzugsweise weist hierbei das Stützvlies keinen Stützfasernanteil auf und besteht daher insbesondere aus 100 % aus dem Grundfaseranteil.Around the handling of an insulating material having insulating material to simplify and for example an attachment to rafters to enable is according to one Preferred embodiment, at least one surface of the insulating material to form a insulating material mechanically solidified. For this purpose, the insulation material with an example as cover fleece or carrier fleece trained support fleece provided, in particular on the top of the insulating material is needled and has sufficient mechanical strength. The support fleece is for example to hold about fasteners such as Braces transmitted forces suitable without the insulation material emigrating. Preferably, in this case, the support web has no support fiber content and therefore consists in particular of 100% of the basic fiber content.

Diese Ausgestaltung beruht auf der Überlegung, aus Umweltschutzgründen, möglichst kein Flammschutzmittel zu verwenden. Ein derartiges, mechanisch verfestigtes Stützvlies lediglich aus dem Grundfaseranteil weist nämlich ausreichend gute feuerhemmende Wirkung auf, so dass auf den Einsatz von Flammschutzmitteln verzichtet werden kann und auch verzichtet wird. Ein Dämmmaterial bestehend aus dem Dämmstoff, auf dessen beiden Außenseiten jeweils ein derartiges Stützvlies ausgebildet ist, kommt daher vollständig ohne Flammschutzmittel aus und besteht zu 100 % aus nachwachsenden Rohstoffen, bis auf einen kleinen Anteil an Mottenschutzmittel bei der Verwendung von Wolle als Grundfaser.These Design is based on the consideration, for environmental reasons, preferably to use no flame retardant. Such, mechanical solidified backing fleece Only from the basic fiber content has sufficiently good fire retardant Effect on, so that dispensed with the use of flame retardants can be and is also waived. An insulating material consisting of the insulation, on its two outer sides in each case such a support web is formed, therefore, comes completely without flame retardants and consists of 100% renewable raw materials, except for one small proportion of moth repellent when using wool as a basic fiber.

Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand der Figuren näher erläutert. Es zeigen jeweils in schematischen und stark vereinfachten Darstellungen:One embodiment The invention will be explained in more detail below with reference to FIGS. Show it each in schematic and highly simplified representations:

1 eine Darstellung der Struktur eines aus mehreren Fasern bestehenden Dämmstoffs, 1 a representation of the structure of an existing multi-fiber insulation material,

2 eine Querschnittsdarstellung einer Bikomponentenfaser, sowie 2 a cross-sectional view of a bicomponent fiber, as well

3 ein Ablaufdiagramm eines Verfahrens zur Herstellung des Dämmstoffs, sowie 3 a flow diagram of a method for producing the insulating material, as well

4 einen Aufbau eines Dämmmaterials mit beidseitig auf den Dämmstoff aufgebrachten Stützvliesen 4 a structure of an insulating material with applied on both sides of the insulation backing fleeces

Wie aus 1 zu entnehmen ist, sind bei einem Dämmstoff 2 Fasern 4 in ungeordneter Weise zueinander nach Art eines Vliesstoffes orientiert. Zur Herstellung des Dämmstoffs 2 wird ein Grundfaseranteil A, bestehend aus einer Grundfaser, und ein Stützfaseranteil B, bestehend aus Stützfasern 6, verwendet (vgl. 3). In 1 ist hier keine Unterscheidung zwischen den Grundfasern und den Stützfasern getroffen.How out 1 it can be seen in an insulating material 2 fibers 4 oriented in a disordered manner to each other in the manner of a nonwoven fabric. For the production of the insulating material 2 becomes a basic fiber portion A consisting of a base fiber and a supporting fiber portion B consisting of supporting fibers 6 , used (cf. 3 ). In 1 Here, no distinction is made between the base fibers and the supporting fibers.

Als Stützfaser 6 wird eine Bikomponentenfaser herangezogen, die einen niedrigschmelzenden Mantel 8 sowie einen hochschmelzenden Kern 10 aufweist. Der Mantel 8 verflüssigt sich daher bereits bei Temperaturen, bei denen der Kern 10 noch formstabil bleibt. Die Stützfaser 6 wird hierbei aus einem pflanzlichen Ausgangsstoff, wie beispielsweise Mais, gewonnen. Aus dem pflanzlichen Ausgangsstoff wird zunächst pflanzlicher Zucker gewonnen, welcher anschließend fermentiert wird. Aus den dabei erhaltenen Produkten wird ein als Polylactid (Polymilchsäure) bezeichnetes Polymer gewonnen, aus dem dann die Stützfaser 6 hergestellt wird. Eine derartig hergestellte Stützfaser 6 ist unter dem Markennamen INGEO erhältlich.As a supporting fiber 6 is a bicomponent fiber is used, which is a low-melting coat 8th and a refractory core 10 having. The coat 8th therefore liquefies already at temperatures at which the core 10 still remains dimensionally stable. The support fiber 6 is obtained from a vegetable source, such as corn. Plant-derived sugar is first extracted from the vegetable raw material, which is then fermented. From the products thus obtained, a polymer called polylactide (polylactic acid) is obtained, from which then the supporting fiber 6 will be produced. A support fiber produced in this way 6 is available under the brand name INGEO.

Die beiden Faseranteile A, B werden miteinander vermischt und mit aus der Wollbearbeitung bekannten Verfahrensschritten im Schritt I zu einem gemeinsamen Vliesstoff ausgebildet. Je nach gewünschter Dicke werden hierbei mehrere Lagen des Vliesstoffes übereinander gelegt. Im anschließenden Verfahrensschritt II erfolgt eine Erwärmung des Vliesstoffes bis auf eine Temperatur etwas oberhalb der Schmelztemperatur des Materials des Mantels 8. Dieses Material verflüssigt sich und schmiegt sich an die Fasern 4 an. Dies ist in 1 beispielhaft an zwei Punkten durch Zwickel 12 dargestellt. Nach der anschließenden Abkühlung verfestigt sich das Mantelmaterial wieder, so dass insgesamt der Dämmstoff 2 mit zueinander verfestigten Fasern 4 erhalten wird. Im anschließenden Verfahrensschritt III wird ein Trägervlies 14 auf die Unterseite und ein Deckvlies 16 auf die Oberseite genadelt, so dass der schematisch in 4 dargestellte Aufbau eines Dämmmaterials 18 erhalten wird. Die Vliese 14, 16 sind frei vom Stützfaseranteil B. Da die Grundfaser für sich jeweils bereits die Auflagen im Hinblick auf den Flammschutz erfüllt ist die Zugabe eines Flammschutzmittels, wie beispielsweise Borax oder Borsäure, nicht erforderlich und nicht vorgesehen.The two fiber portions A, B are mixed together and formed with known from wool processing steps in step I to form a common nonwoven fabric. Depending on the desired thickness in this case several layers of the nonwoven fabric are superimposed. In the subsequent process step II, the nonwoven fabric is heated up to a temperature slightly above the melting temperature of the material of the jacket 8th , This material liquefies and clings to the fibers 4 at. This is in 1 exemplified at two points by gusset 12 shown. After the subsequent cooling, the shell material solidifies again, so that the total of the insulating material 2 with mutually solidified fibers 4 is obtained. In the subsequent process step III is a carrier fleece 14 on the underside and a cover fleece 16 Needled to the top, so that the schematic in 4 illustrated construction of a Dämmmaterials 18 is obtained. The fleeces 14 . 16 are free from the support fiber B. Since the base fiber for each already the conditions with regard to the flame protection is the addition of a flame retardant, such as borax or boric acid, not required and not provided.

Als Grundfaseranteil in bevorzugten Alternativen wird entweder Schafschurwolle mit einem Anteil von etwa 70–90% verwendet. Alternativ hierzu wird als Grundfaser eine Einkomponenten-INGEO-Faser verwendet. Bei der Verwendung sowohl der Stütz- oder Bindefaser als auch der Grundfaser aus dieser pflanzlichen Bio-Faser ist weder die Zugabe eines Mottenschutzmittels noch das Aufnadeln des Trägervlieses 14 bzw. des Deckvlieses 16 vorgesehen.As a basic fiber content in preferred alternatives either sheep's wool is used at a level of about 70-90%. Alternatively, a single-component INGEO fiber is used as the base fiber. When using both the backing or binder fiber and the base fiber of this vegetable bio-fiber is neither the addition of a moth repellent nor the needling of the carrier fleece 14 or the cover fleece 16 intended.

22
Dämmstoffinsulation
44
Faserfiber
66
Stützfasersupporting fiber
88th
Mantelcoat
1010
Kerncore
1212
Zwickelgore
1414
Trägervliescarrier fleece
1515
Deckvliesdeck fleece
1818
Dämmmaterialinsulation
AA
GrundfaseranteilBasic fiber content
BB
StützfaseranteilSupporting fiber content

Claims (9)

Dämmstoff (2) basierend auf nachwachsenden Rohstoffen, der im Wesentlichen gebildet ist aus einem Grundfaseranteil (A) einer Grundfaser aus einem nachwachsenden Rohstoff sowie aus einem Stützfaseranteil (B) einer im Ausgangszustand zweikomponentigen Stützfaser (6) aus einem nachwachsenden Rohstoff, die im Ausgangszustand einen hochschmelzenden Kern (10) und einen niedrigschmelzenden Mantel (8) umfasst.Insulation material ( 2 ) based on renewable raw materials, which is essentially formed from a base fiber fraction (A) of a base fiber from a renewable raw material and from a support fiber portion (B) of a starting two-component support fiber ( 6 ) from a renewable raw material, which in the initial state has a refractory core ( 10 ) and a low-melting jacket ( 8th ). Dämmstoff (2) nach Anspruch 1, bei dem der Mantel (8) aufgeschmolzen ist und das aufgeschmolzene Material nach Art eines Klebers die Fasern (4) verfestigt.Insulation material ( 2 ) according to claim 1, wherein the jacket ( 8th ) is melted and the molten material in the manner of an adhesive, the fibers ( 4 ) solidified. Dämmstoff (2) nach Anspruch 2, bei dem für die Stützfasern (6) ein durch eine Fermentierung pflanzlicher Zuckerbausteine hergestelltes Polymer verwendet ist.Insulation material ( 2 ) according to claim 2, in which for the supporting fibers ( 6 ) a polymer produced by a fermentation of vegetable sugar units is used. Dämmstoff (2) nach einem der Ansprüche 1 bis 3, bei dem der Grundfaseranteil (A) Wolle ist.Insulation material ( 2 ) according to any one of claims 1 to 3, wherein the base fiber portion (A) is wool. Dämmstoff nach Anspruch 4, der gebildet ist aus 10–30 Vol% Stützfaseranteil (B) und dem Rest aus Wolle zuzüglich eines geringen Anteils Mottenschutzmittels.insulation according to claim 4, which is formed from 10-30% by volume of supporting fiber content (B) and the remainder Wool plus a low proportion of moth repellent. Dämmstoff (2) nach einem der Ansprüche 1 bis 3, bei dem der Grundfaseranteil (A) aus einer einkomponentigen Faser aus dem gleichen Material wie die Stützfaser (6) gebildet ist.Insulation material ( 2 ) according to one of claims 1 to 3, in which the base fiber portion (A) consists of a one-component fiber of the same material as the support fiber (A). 6 ) is formed. Dämmstoff (2) nach Anspruch 6, der gebildet ist aus 10–30 Vol% Stützfaseranteil (B) und dem Rest aus der einkomponentigen Faser aus dem gleichen Material wie die Stützfaser (6).Insulation material ( 2 ) according to claim 6, which is formed of 10-30% by volume of supporting fiber portion (B) and the remainder of the one-component fiber of the same material as the supporting fiber ( 6 ). Dämmstoff (2) nach einem der vorhergehenden Ansprüche, der an zumindest einer Oberfläche (14, 16) mechanisch verfestigt ist.Insulation material ( 2 ) according to one of the preceding claims, which on at least one surface ( 14 . 16 ) is mechanically solidified. Dämmstoff (2) nach einem der vorhergehenden Ansprüche bei dem die Oberfläche (14, 16) keinen Stützfaseranteil (B) aufweist.Insulation material ( 2 ) according to one of the preceding claims, in which the surface ( 14 . 16 ) has no support fiber content (B).
DE202005008962U 2005-06-08 2005-06-08 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 Expired - Lifetime DE202005008962U1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2932511A1 (en) * 2008-06-13 2009-12-18 Eric Alvarez Thermal insulation panel, for use in buildings, comprises natural fibers entrapped in 3-dimensional network formed from thermofusible composite fibers based on biopolymers
DE202010002524U1 (en) 2010-02-18 2010-07-15 Baur, Friedrich Innenwanddämmsystem
DE202010011657U1 (en) 2010-08-21 2011-11-30 Friedrich Baur Furnishing element
EP3348727A1 (en) * 2017-01-13 2018-07-18 Horst Philipp Acoustic insulation plate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2932511A1 (en) * 2008-06-13 2009-12-18 Eric Alvarez Thermal insulation panel, for use in buildings, comprises natural fibers entrapped in 3-dimensional network formed from thermofusible composite fibers based on biopolymers
DE202010002524U1 (en) 2010-02-18 2010-07-15 Baur, Friedrich Innenwanddämmsystem
DE202010011657U1 (en) 2010-08-21 2011-11-30 Friedrich Baur Furnishing element
EP3348727A1 (en) * 2017-01-13 2018-07-18 Horst Philipp Acoustic insulation plate
WO2018130635A1 (en) * 2017-01-13 2018-07-19 Horst Philipp Acoustic-insulating panel

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