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EP0583671A1 - Method of producing moulded parts by compressing textile raw material with simultaneous bonding, moulded parts produced with this method and the use thereof - Google Patents

Method of producing moulded parts by compressing textile raw material with simultaneous bonding, moulded parts produced with this method and the use thereof Download PDF

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Publication number
EP0583671A1
EP0583671A1 EP93112344A EP93112344A EP0583671A1 EP 0583671 A1 EP0583671 A1 EP 0583671A1 EP 93112344 A EP93112344 A EP 93112344A EP 93112344 A EP93112344 A EP 93112344A EP 0583671 A1 EP0583671 A1 EP 0583671A1
Authority
EP
European Patent Office
Prior art keywords
textile
adhesive
residues
fibrous material
textile residues
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Withdrawn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
EP93112344A
Other languages
German (de)
French (fr)
Inventor
Peter Knobloch
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.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0583671A1 publication Critical patent/EP0583671A1/en
Withdrawn legal-status Critical Current

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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
    • D04H1/42—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
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated 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
    • D04H1/4282—Addition polymers
    • D04H1/43—Acrylonitrile 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
    • D04H1/58—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

Definitions

  • the invention relates to a method for producing molded parts, in which certain textile residues are mixed with an adhesive and held in a mold under pressure until the adhesive has set.
  • a method for producing molded parts is described, for example, in EP-B-0 160 270.
  • the various options for the construction of such materials are also discussed there.
  • Tearing wool, wood, shavings and torn paper residues are mentioned as fibrous starting materials.
  • polyester fibers residues from the processing of synthetic fibers, in particular fibers made of polyethylene terephthalate, generally referred to as polyester fibers, which are used in the form of tearing wool.
  • molded parts such as e.g. Particle boards common, as well as pressed foamed materials, including insulation and insulation materials made of, for example, fibrous inorganic material.
  • Textile fabrics such as woven or knitted fabrics based on polyester / cotton blends, such as polyester / cotton 65% / 35%, of polyester / wool blends, such as polyester / wool 55% / 45%, may be mentioned by way of example Polyesters such as polyethylene terephthalate, cotton, wool, acrylic, viscose or mixtures of these types. It is also known that insulation materials, such as waiting, are also produced from such materials. Textile processes such as those that lead to the formation of nonwovens are used.
  • the present invention provides a further possibility of reducing and avoiding residues based on fiber materials.
  • a method according to claim 1 is provided, by means of which such textile products, even after intended use, can be used to build moldings, such as insulation and insulation materials, which, if desired, can also have supporting, at least self-supporting properties.
  • the textile residues to be used include, in particular, textile surfaces such as woven fabrics, knitted fabrics, knitted fabrics, scrims, nonwovens.
  • the shredded material is intimately mixed with an adhesive or binder, preferably as introduced in construction and living areas.
  • Preferred adhesives are common and imported products from other fields of work, the working temperature of which is below the melting temperature of the fiber materials used.
  • powdered adhesives are particularly suitable.
  • reactive adhesives can also be used. The choice of adhesive is not subject to any restrictions with regard to chemistry.
  • Thermoplastics which are liquefied by heating and which, after cooling, join the fibrous material, are particularly preferred.
  • the amount of adhesive is selected according to the intended use, after which the smallest possible amount of adhesive is aimed for.
  • the amount of adhesive is preferably not more than 10% by weight.
  • the mixture of textile products and glue is evenly distributed over the subsequent m2 weight and heated in a press until the glue is fully effective.
  • the thickness of the formed part follows from the distance between the plates. Pressure relief takes place when the adhesive has developed its adhesive strength to such an extent that no change in thickness occurs after relief. This is the case for hot melt adhesives below a certain temperature.
  • composition of the textile material is based on textile-proven mixtures that are common in the consumer and home textile sector.
  • Preferred examples of such mixtures are residues from Polyester / cotton 65% / 35%, polyester / wool 55% / 45%, acrylic / wool blends, or 100% use of polyester cotton, wool, acrylic, viscose.
  • the molded parts available in this way can be used in particular as insulation and insulation materials and have known textile properties. This affects e.g. moisture absorption, dimensional stability, temperature behavior and the like. Like the corresponding textile products, these insulation and insulation materials are comparable insulating, permeable to air and moisture. Typically, as with the corresponding textile products, heat-insulating, temperature-compensating and sound-insulating properties are combined with one another.
  • molded part is to be understood to mean plate-shaped material, as are products to which a specific shape is stamped, in accordance with the later use.
  • Such insulation and insulation materials are usually flexible, self-supporting and can be cut. They also take on load-bearing functions when the setting is tight, which means that they can be subjected to mechanical loads in addition to absorbing their own weight.
  • a decorative surface can optionally be provided with a final, for example with a decorative surface.
  • a decorative surface will preferably be based on textile products, such as with the use of nonwovens, fabrics, knitted fabrics, scrims.
  • a waterproof, vapor-permeable surface is preferred, as is common with conventional mineral insulation materials, for example.
  • One-sided surface covering will preferably serve to convey an additional property, such as modification of the decoration of the surface and / or its impermeability to water, while double-sided surface covering can make a significant contribution to the stiffening of the product.
  • a special type of product stabilization is possible if, for example, a scrim or woven grid stabilizes the interior of the insulation and insulation material approximately in the middle. In this case, the formability of the material is not affected as is the case with surface stabilization.
  • the adhesive can be used to impart to the moldings according to the invention, such as insulation, insulation and carrier materials, further functions which are desired for the intended use of these moldings.
  • impregnating properties (water-repellent character) of the molded parts can be imparted with additives in the adhesive.
  • additional properties can also be generated by subsequent treatment or by introducing separate components into the premix.
  • a surface design by spraying for example a dye, is also possible.
  • Such products can be used as insulation and insulation material in construction, also in mechanical engineering, as insulation and anti-drumming material, if desired in combination with a self-supporting character, or even mechanically resilient.
  • the preferred area of application is insulation and insulation in residential construction, where well-known, proven combinations of textile properties are transferred to the building industry. Processing is easy, since these insulation and insulation materials can at least be self-supporting due to the way they are manufactured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Moulding By Coating Moulds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

A process is described for producing moulded parts, in which a fibrous material is mixed with an adhesive and is held in a mould under pressure until the adhesive hardens. The process is characterised in that the fibrous material being used comprises comminuted textile residues which are produced in the production, processing and/or after use of clothing textiles and/or domestic textiles. The present invention provides a further possibility of reclaiming residues. The aforementioned textile products can thus be used in a new application even after use as intended. In particular, insulating and acoustic materials can be constructed from the moulded parts according to the invention.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen von Formteilen, bei dem bestimmte textile Reststoffe mit einem Kleber vermischt und unter Druck bis zum Abbinden des Klebers in einer Form gehalten werden.The invention relates to a method for producing molded parts, in which certain textile residues are mixed with an adhesive and held in a mold under pressure until the adhesive has set.

Ein Verfahren zum Herstellen von Formteilen ist beispielsweise in der EP-B-0 160 270 beschrieben. Dort wird auch auf die verschiedenen Möglichkeiten zum Aufbau derartiger Materialien eingegangen. Als faserige Ausgangsmaterialien sind Reißwolle, Holz, Späne und gerissene Papierreststoffe genannt. Mit besonderem Vorteil auch Reststoffe aus der Verarbeitung von Kunstfasern, insbesondere Fasern aus Polyethylenterephthalat, im allgemeinen als Polyesterfasern bezeichnet, die in Form von Reißwolle eingesetzt werden.A method for producing molded parts is described, for example, in EP-B-0 160 270. The various options for the construction of such materials are also discussed there. Tearing wool, wood, shavings and torn paper residues are mentioned as fibrous starting materials. With particular advantage also residues from the processing of synthetic fibers, in particular fibers made of polyethylene terephthalate, generally referred to as polyester fibers, which are used in the form of tearing wool.

Obige Patentschrift nennt im Beispiel Reißwolle aus Polyester Spunbond-Reststoffen, also ein zerrissenes Spinnvlies.In the example, the above patent mentions pulling wool made of polyester spunbond residues, i.e. a torn spunbond.

Ferner sind im Bauwesen gepreßte Formteile wie z.B. Spanplatten geläufig, ebenso gepreßte geschäumte Materialien, auch aus beispielsweise faserigem anorganischem Material aufgebaute Dämm- und Isolationsmaterialien.Furthermore, molded parts such as e.g. Particle boards common, as well as pressed foamed materials, including insulation and insulation materials made of, for example, fibrous inorganic material.

Auf einem ganz anderen Gebiet, nämlich in der Textilindustrie, haben sich auf dem Gebiet der Bekleidungs- und Heimtextilien bestimmte Mischungen wegen günstiger Eigenschaftskombinationen und Eigenschaftsergänzungen bevorzugt durchgesetzt. Genannt seien beispielhaft textile Flächengebilde, wie Gewebe oder Gestricke auf der Basis von Polyester/Baumwolle Mischungen, wie Polyester/Baumwolle 65 %/35 %, von Polyester/Wolle Mischungen, wie Polyester/Wolle 55 %/45 %, von Polyester, wie Polyethylenterephthalat, von Baumwolle, von Wolle, von Acryl, von Viskose oder von Mischungen dieser Typen. Bekannt ist weiterhin, daß auch aus solchen Materialien Isolationsmaterialien, etwa Warten, hergestellt werden. Angewandt werden dabei textile Prozesse, wie sie beispielsweise zur Vliesbildung führen.In a completely different field, namely in the textile industry, certain blends have prevailed in the field of clothing and home textiles because of favorable property combinations and property additions. Textile fabrics, such as woven or knitted fabrics based on polyester / cotton blends, such as polyester / cotton 65% / 35%, of polyester / wool blends, such as polyester / wool 55% / 45%, may be mentioned by way of example Polyesters such as polyethylene terephthalate, cotton, wool, acrylic, viscose or mixtures of these types. It is also known that insulation materials, such as waiting, are also produced from such materials. Textile processes such as those that lead to the formation of nonwovens are used.

Bekannt ist weiterhin, daß viele textile Produkte nach bestimmungsgemäßem Gebrauch erneut verfügbar sind.It is also known that many textile products are available again after their intended use.

Infolge der zunehmend schwieriger werdenden Möglichkeiten der Entsorgung besteht ein Bedarf an Möglichkeiten, entstehende Reststoffe in den Stoffkreislauf zurückzuführen, so auch auf dem Heimtextil- und Bekleidungssektor.As a result of the increasingly difficult disposal options, there is a need for options to return the resulting residues to the material cycle, including in the home textile and clothing sector.

Mit der vorliegenden Erfindung wird eine weitere Möglichkeit zur Verfügung gestellt, Reststoffe auf der Basis von Fasermaterialien zu reduzieren und zu vermeiden.The present invention provides a further possibility of reducing and avoiding residues based on fiber materials.

Mit der vorliegenden Erfindung wird ein Verfahren gemäß Anspruch 1 bereitgestellt, womit aus derartigen textilen Produkten, auch nach bestimmungsgemäßem Gebrauch, Formkörper, wie Isolations- und Dämmaterialien aufgebaut werden können, die, wenn gewünscht, auch tragende, zumindest selbsttragende Eigenschaften haben können.With the present invention, a method according to claim 1 is provided, by means of which such textile products, even after intended use, can be used to build moldings, such as insulation and insulation materials, which, if desired, can also have supporting, at least self-supporting properties.

Zu den einzusetzenden textilen Reststoffen zählen insbesondere textile Flächen wie Gewebe, Gewirke, Gestricke, Gelege, Vliesstoffe.The textile residues to be used include, in particular, textile surfaces such as woven fabrics, knitted fabrics, knitted fabrics, scrims, nonwovens.

Zunächst erfolgt gegebenenfalls eine chemische Reinigung oder Wäsche oder Kombination beider Reinigungsverfahren. Die anschließende Zerkleinerung geschieht mittels Häcksler und/oder über Reißaggregate.First, chemical cleaning or washing or a combination of both cleaning processes is carried out. The subsequent comminution is carried out by means of a chopper and / or a tearing unit.

Je nach Art der durch den Gebrauch gegebenen Verschmutzung mag es zweckmäßig sein, das Ausgangsmaterial zunächst grob zu häckseln oder zu reißen und dann die erwähnte Wasch- oder Reinigungsstufe oder das kombinierte Reinigungsverfahren anzuwenden. Anschließend kann eine weitere Zerkleinerung bis zu kleinen Flächenstückchen, einzelnen Garn- oder Multifilament-Stücken und auch Einzelfilamenten erfolgen.Depending on the type of pollution caused by use, it may be appropriate to roughly chop or tear the starting material first and then the washing or cleaning step mentioned or the combined step Apply cleaning procedures. This can then be further reduced to small pieces, individual yarn or multifilament pieces and also single filaments.

Das zerkleinerte Material wird mit einem Kleber oder Binder, bevorzugt wie im Bau- und Wohnbereich eingeführt, innig gemischt. Bevorzugte Kleber sind gebräuchliche und eingeführte Produkte aus anderen Arbeitsgebieten, deren Arbeitstemperatur unter der Schmelztemperatur der eingesetzten Fasermaterialien liegen. Neben flüssigen Klebern sind insbesonders pulverförmige Kleber geeignet. Neben pulvrigen Schmelzklebern können auch reaktive Kleber zum Einsatz gelangen. Hinsichtlich der Chemie ist die Auswahl des Klebers keinen Einschränkungen unterworfen. Es kommen bevorzugt insbesondere auch Thermoplaste infrage, die durch Erhitzen verflüssigt werden und nach einem Abkühlen das faserige Material verbinden.The shredded material is intimately mixed with an adhesive or binder, preferably as introduced in construction and living areas. Preferred adhesives are common and imported products from other fields of work, the working temperature of which is below the melting temperature of the fiber materials used. In addition to liquid adhesives, powdered adhesives are particularly suitable. In addition to powdery hot melt adhesives, reactive adhesives can also be used. The choice of adhesive is not subject to any restrictions with regard to chemistry. Thermoplastics, which are liquefied by heating and which, after cooling, join the fibrous material, are particularly preferred.

Die Klebermenge wird dem beabsichtigten Gebrauchszweck entsprechend ausgewählt, worauf möglichst geringe Klebermengen angestrebt werden. Vorzugsweise beträgt die Klebermenge nicht über 10 Gew.-%. Der Einsatz von Schmelzklebern in geringen Mengenanteilen, beispielsweise auf der Basis eines Co-Polymerisates aus Vinylester, erlaubt erneute Recycelbarkeit und ist daher besonders bevorzugt.The amount of adhesive is selected according to the intended use, after which the smallest possible amount of adhesive is aimed for. The amount of adhesive is preferably not more than 10% by weight. The use of hotmelt adhesives in small amounts, for example based on a copolymer of vinyl ester, permits renewed recyclability and is therefore particularly preferred.

Die Mischung aus textilen Produkten und Kleber wird entsprechend dem späteren m²-Gewicht gleichmäßig flächig verteilt und in einer Presse soweit erhitzt, daß der Kleber seine volle Wirksamkeit entfaltet. Aus dem Plattenabstand folgt die Dicke des entstehenden Formteils. Druckentlastung erfolgt, wenn der Kleber soweit seine Klebkraft entfaltet hat, daß keine Dickenänderung nach Entlastung mehr auftritt. Bei Schmelzklebern ist dies unterhalb einer bestimmten Temperatur der Fall.The mixture of textile products and glue is evenly distributed over the subsequent m² weight and heated in a press until the glue is fully effective. The thickness of the formed part follows from the distance between the plates. Pressure relief takes place when the adhesive has developed its adhesive strength to such an extent that no change in thickness occurs after relief. This is the case for hot melt adhesives below a certain temperature.

Bei der Zusammenstellung des textilen Materials erfolgt Anlehnung an textile bewährte Mischungen, wie sie auf dem Gebrauchs- und Heimtextilsektor üblich sind. Bevorzugte Beispiele für solche Mischungen sind Reststoffe aus Polyester/Baumwolle 65 %/35 %, Polyester/Wolle 55 %/45 %, Acryl/Wollmischungen, oder auch 100 %-iger Einsatz von Polyester Baumwolle, Wolle, Acryl, Viskose.The composition of the textile material is based on textile-proven mixtures that are common in the consumer and home textile sector. Preferred examples of such mixtures are residues from Polyester / cotton 65% / 35%, polyester / wool 55% / 45%, acrylic / wool blends, or 100% use of polyester cotton, wool, acrylic, viscose.

Die so erhältlichen Formteile lassen sich insbesonders als Isolations- und Dämmmaterialien einsetzen und verfügen über bekannte textile Eigenschaften. Dies betrifft z.B. die Feuchtigkeitsaufnahme, die Dimensionsstabilität, das Temperaturverhalten und dergleichen. Wie die entsprechenden textilen Produkte sind diese Isolations- und Dämmaterialien vergleichbar isolierend, luft- und feuchtigkeitsdurchlässig. In typischer Weise sind wie bei den entsprechenden textilen Produkten wärmeisolierende, temperaturausgleichende und schalldämmende Eigenschaften miteinander kombiniert.The molded parts available in this way can be used in particular as insulation and insulation materials and have known textile properties. This affects e.g. moisture absorption, dimensional stability, temperature behavior and the like. Like the corresponding textile products, these insulation and insulation materials are comparable insulating, permeable to air and moisture. Typically, as with the corresponding textile products, heat-insulating, temperature-compensating and sound-insulating properties are combined with one another.

Unter dem Begriff "Formteil" ist im Rahmen dieser Erfindung plattenförmiges Material zu verstehen, ebenso Produkte, denen eine bestimmte Form, entsprechend dem späteren Einsatz, aufgeprägt ist.In the context of this invention, the term “molded part” is to be understood to mean plate-shaped material, as are products to which a specific shape is stamped, in accordance with the later use.

Derartige Isolations- und Dämmaterialien, die beispielsweise 0,5-5 cm dick sind, sind üblicherweise biegsam, selbsttragend und schneidbar. Sie übernehmen zusätzlich bei dichter Einstellung tragende Funktionen, das heißt, sie können über das Aufnehmen des Eigengewichtes hinaus mechanisch belastet werden.Such insulation and insulation materials, for example 0.5-5 cm thick, are usually flexible, self-supporting and can be cut. They also take on load-bearing functions when the setting is tight, which means that they can be subjected to mechanical loads in addition to absorbing their own weight.

Sie können wahlweise mit abschließender, beispielsweise mit dekorativer Oberfläche versehen werden. Um eine erneute Recycelbarkeit nicht einzuschränken, wird eine solche dekorative Oberfläche bevorzugt auf Basis textiler Produkte erfolgen, wie z.B. mit dem Einsatz von Vliesstoffen, Geweben, Gewirken, Gelegen.They can optionally be provided with a final, for example with a decorative surface. In order not to limit the recyclability, such a decorative surface will preferably be based on textile products, such as with the use of nonwovens, fabrics, knitted fabrics, scrims.

Für den Isolationsbereich ist die Belegung mit einer wasserdichten, bei Bedarf dampfdurchlässigen Oberfläche bevorzugt, wie sie beispielsweise bei konventionellen mineralischen Dämmstoffen üblich ist.For the insulation area, a waterproof, vapor-permeable surface is preferred, as is common with conventional mineral insulation materials, for example.

Es sind sowohl einseitige als auch zweiseitige Oberflächenbelegungen des erfindungsgemäßen Formkörpers möglich. Einseitige Oberflächenbelegung wird bevorzugt dazu dienen, eine Zusatzeigenschaft zu vermitteln, wie Modifikation des Dekors der Oberfläche und/oder deren Wasserundurchlässigkeit, während beidseitige Oberflächenbelegung einen wesentlichen Beitrag zur Aussteifung des Produktes beitragen kann.There are both one-sided and two-sided surface coatings of the Shaped body according to the invention possible. One-sided surface covering will preferably serve to convey an additional property, such as modification of the decoration of the surface and / or its impermeability to water, while double-sided surface covering can make a significant contribution to the stiffening of the product.

Eine besondere Art der Produktstabilisierung ist möglich, wenn beispielsweise durch ein Gelege oder gewebtes Gitter eine Stabilisierung im Inneren des Isolations- und Dämmaterials etwa mittig erfolgt. In diesem Fall wird die Formbarkeit des Materials nicht so beeinträchtigt, wie dies bei Stabilisierung an der Oberfläche der Fall ist.A special type of product stabilization is possible if, for example, a scrim or woven grid stabilizes the interior of the insulation and insulation material approximately in the middle. In this case, the formability of the material is not affected as is the case with surface stabilization.

Mit dem Kleber können dem erfindungsgemäßen Formteilen, wie Isolations-, Dämm- und Trägermaterialien, weitere Funktionen vermittelt werden, die für den ins Auge gefaßten Verwendungszweck dieser Formteile gewünscht werden. So lassen sich etwa imprägnierende Eigenschaften (wasserabweisender Charakter) der Formteile durch Zusätze im Kleber vermitteln. Selbstverständlich können solche Zusatzeigenschaften auch durch nachträgliche Behandlung oder durch Einbringen separater Komponenten in die Vormischung erzeugt werden.The adhesive can be used to impart to the moldings according to the invention, such as insulation, insulation and carrier materials, further functions which are desired for the intended use of these moldings. For example, impregnating properties (water-repellent character) of the molded parts can be imparted with additives in the adhesive. Of course, such additional properties can also be generated by subsequent treatment or by introducing separate components into the premix.

Eine Oberflächengestaltung durch Aufsprühen, beispielsweise eines Farbstoffes, ist ebenfalls möglich.A surface design by spraying, for example a dye, is also possible.

Derartige Produkte können als Isolations- und Dämmaterial im Bauwesen eingesetzt werden, auch im Maschinenbau, als Isolations- und Antidröhnmaterial, falls gewünscht in Kombination mit selbsttragendem Charakter, oder sogar mechanisch belastbar. Bevorzugtes Einsatzgebiet ist die Isolation und Dämmung im Wohnungsbau, wo auf diese Weise bekannte bewährte textile Eigenschaftskombinationen auf das Bauwesen übertragen werden. Die Verarbeitung ist einfach, da diese Isolations- und Dämmaterialien durch die Art ihrer Herstellung zumindest selbsttragend sein können.Such products can be used as insulation and insulation material in construction, also in mechanical engineering, as insulation and anti-drumming material, if desired in combination with a self-supporting character, or even mechanically resilient. The preferred area of application is insulation and insulation in residential construction, where well-known, proven combinations of textile properties are transferred to the building industry. Processing is easy, since these insulation and insulation materials can at least be self-supporting due to the way they are manufactured.

Claims (18)

Verfahren zum Herstellen von Formteilen, bei dem ein faseriges Material mit einem Kleber vermischt und unter Druck bis zum Abbinden des Klebers in einer Form gehalten wird, dadurch gekennzeichnet, daß als faseriges Material zerkleinerte textile Reststoffe, die bei Herstellung, Verarbeitung und/oder nach Gebrauch von Bekleidungs- und/oder Heimtextilien anfallen, eingesetzt werden.Process for the production of molded parts, in which a fibrous material is mixed with an adhesive and is held in a mold under pressure until the adhesive has set, characterized in that textile residues comminuted as fibrous material are used in the manufacture, processing and / or after use of clothing and / or home textiles are used. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß als textile Reststoffe bewährte textile Mischungen ausgewählt werden, wie vorzugsweise Polyester/Baumwolle 65 %/35 %, Polyester/Wolle 55 %/45 %, Acryl/Woll-Mischungen, 100 % Polyester, 100 % Baumwolle, 100 % Wolle, 100 % Acryl und 100 % Viskose.A method according to claim 1, characterized in that proven textile mixtures are selected as textile residues, such as preferably polyester / cotton 65% / 35%, polyester / wool 55% / 45%, acrylic / wool mixtures, 100% polyester, 100% Cotton, 100% wool, 100% acrylic and 100% viscose. Verfahren gemaß Anspruch 1, dadurch gekennzeichnet, daß textile Reststoffe eingesetzt werden, die nach bestimmungsgemäßem Gebrauch von Bekleidungs- und/oder Heimtextilien anfallen.Process according to claim 1, characterized in that textile residues are used which are obtained after the intended use of clothing and / or home textiles. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß vor der Zerkleinerung der einzusetzenden textilen Reststoffe mittels Häcksler und/oder über Reißaggregate eine Reinigungsstufe geschaltet wird, insbesondere in Form einer Chemischreinigung und/oder Wäsche.A method according to claim 1, characterized in that before the comminution of the textile residues to be used, a cleaning stage is switched by means of choppers and / or via tearing units, in particular in the form of dry cleaning and / or washing. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß nach einer ersten Zerkleinerung der einzusetzenden textilen Reststoffe eine Reinigungsstufe erfolgt.A method according to claim 1, characterized in that after a first comminution of the textile residues to be used, a cleaning step is carried out. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß pulvrige Schmelzkleber in Form von Thermoplasten zum Einsatz kommen, die durch Erhitzen verflüssigt werden und nach dem Abkühlen die textilen Reststoffe verbinden.A method according to claim 1, characterized in that powdery hot melt adhesives in the form of thermoplastics are used, which are liquefied by heating and combine the textile residues after cooling. Verfahren gemäß einem der Ansprüche 1 oder 6, dadurch gekennzeichnet, daß die Klebermenge möglichst gering gewählt wird, um erneute Recycelbarkeit zu erlauben.Method according to one of claims 1 or 6, characterized in that the amount of adhesive is chosen to be as small as possible in order to allow renewed recyclability. Verfahren gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Vormischung aus textilen Reststoffen und Kleber vor dem Verpressen oder daß das fertige Formteil mit mindestens einer Schicht aus wasserdichtem und dampfdurchlässigem Material belegt wird.Method according to one of claims 1 to 7, characterized in that the premix of textile residues and adhesive before pressing or that the finished molded part is covered with at least one layer of waterproof and vapor-permeable material. Verfahren gemäß Anspruch 8, dadurch gekennzeichnet, daß eine beidseitige Oberflächenbelegung stattfindet, um die Steifigkeit des Produktes zu erhöhen.A method according to claim 8, characterized in that a surface coating on both sides takes place in order to increase the rigidity of the product. Verfahren gemäß einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, daß die Oberflächenbelegung mit textilen Produkten erfolgt, insbesondere mit zerkleinerten textilen Reststoffen, die bei Herstellung, Verarbeitung und/oder nach Gebrauch von Bekleidungs- und/oder Heimtextilien anfallen.Method according to one of claims 8 or 9, characterized in that the surface is covered with textile products, in particular with comminuted textile residues which are produced, manufactured and / or after use of clothing and / or home textiles. Verfahren gemäß einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Vormischung aus textilen Reststoffen und Kleber zusammen mit einem im Inneren dieser Vermischung angebrachtem Gelege oder gewebtem Gitter verpreßt wird, um eine Produktstabilisierung zu erzielen.Method according to one of claims 1 to 10, characterized in that the premix of textile residues and adhesive is pressed together with a scrim or woven grid attached inside this mixture in order to achieve product stabilization. Verfahren gemäß einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß mit dem Kleber Zusatzeigenschaften, etwa wasserabstoßende Eigenschaften, eine Verbesserung der Wärmestandfestigkeit, eine günstige Beeinflussung des Brandverhaltens, durch entsprechende Zusätze vermittelt werden.Method according to one of claims 1 to 11, characterized in that the adhesive provides additional properties, such as water-repellent properties, an improvement in the heat resistance, a favorable influence on the fire behavior, by means of appropriate additives. Verfahren gemäß einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß eine Oberflächengestaltung durch Aufsprühen eines die Oberflächenstruktur und/oder die Oberflächeneigenschaften modifizierenden Stoffes, insbesondere eines Farbstoffes erfolgt, wobei das Aufsprühen auf mindestens eine der Oberflächen der Vormischung vor dem Verpressen oder auf mindestens eine der Oberflächen des verpressten Formteiles erfolgt.Method according to one of claims 1 to 11, characterized in that a surface design by spraying on a surface structure and / or modifying the surface properties Substance, in particular a dye, wherein the spraying is carried out on at least one of the surfaces of the premix before pressing or on at least one of the surfaces of the pressed molding. Formteil aus faserigem Material und einem Kleber, der besagtes faseriges Material zu besagtem Formteil verbindet, dadurch gekennzeichnet, daß das faserige Material im wesentlichen aus zerkleinerten textilen Reststoffen, die bei Herstellung, Verarbeitung und/oder nach Gebrauch von Bekleidungs- und/oder Heimtextilien anfallen, besteht.Shaped part made of fibrous material and an adhesive which connects said fibrous material to said shaped part, characterized in that the fibrous material consists essentially of comminuted textile residues which are produced in the manufacture, processing and / or after use of clothing and / or home textiles, consists. Formteil gemäß Anspruch 14, dadurch gekennzeichnet, daß dieses die Form einer Platte aufweist.Shaped part according to claim 14, characterized in that it has the shape of a plate. Formteil gemäß Anspruch 15, dadurch gekennzeichnet, daß dieses selbsttragende Eigenschaften aufweist.Shaped part according to claim 15, characterized in that it has self-supporting properties. Formteil gemäß einem der Ansprüche 15 oder 16, dadurch gekennzeichnet, daß dieses mechanisch belastbar ist, also mechanisch mehr als nur das Eigengewicht aufnehmen kann, ohne seine Form zu verändern.Shaped part according to one of claims 15 or 16, characterized in that it is mechanically resilient, that is to say it can mechanically absorb more than just its own weight without changing its shape. Verwendung des Formteils gemäß Anspruch 14 als Isolations- und Dämmaterial.Use of the molded part according to claim 14 as insulation and insulation material.
EP93112344A 1992-08-14 1993-08-02 Method of producing moulded parts by compressing textile raw material with simultaneous bonding, moulded parts produced with this method and the use thereof Withdrawn EP0583671A1 (en)

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DE4227033 1992-08-14
DE4227033 1992-08-14

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EP (1) EP0583671A1 (en)
JP (1) JPH06182883A (en)
BR (1) BR9303274A (en)
CA (1) CA2104050A1 (en)
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NO (1) NO932882L (en)

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EP0615014A1 (en) * 1993-03-06 1994-09-14 Hoechst Aktiengesellschaft Method of producing moulded parts from fibrous material and binder and articles produced therewith
EP0647519A1 (en) * 1993-10-06 1995-04-12 Matec Holding Ag Low odour moulded article for sound and heat insulation and process for its manufacturing
EP0878589A2 (en) * 1997-05-14 1998-11-18 Arne Petersohn Method for manufactoring a sound absorbing element for buildings

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JP4962342B2 (en) * 2008-02-12 2012-06-27 株式会社カネカ Synthetic fiber nonwoven fabric production method and cloth-like and / or cotton-like fiber separation device
GB2607352B (en) * 2021-06-04 2024-04-03 Avena Environmental Ltd Process for manufacturing a solid product

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EP0615014A1 (en) * 1993-03-06 1994-09-14 Hoechst Aktiengesellschaft Method of producing moulded parts from fibrous material and binder and articles produced therewith
EP0647519A1 (en) * 1993-10-06 1995-04-12 Matec Holding Ag Low odour moulded article for sound and heat insulation and process for its manufacturing
EP0878589A2 (en) * 1997-05-14 1998-11-18 Arne Petersohn Method for manufactoring a sound absorbing element for buildings
EP0878589A3 (en) * 1997-05-14 2000-03-29 Arne Petersohn Method for manufactoring a sound absorbing element for buildings

Also Published As

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FI933571L (en) 1994-02-15
NO932882L (en) 1994-02-15
NO932882D0 (en) 1993-08-13
FI933571A0 (en) 1993-08-12
BR9303274A (en) 1994-03-08
CA2104050A1 (en) 1994-02-15
JPH06182883A (en) 1994-07-05

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