EP0038090B1 - Product and process for the flame retardant treatment of textile material containing polyacrylic fibres - Google Patents

Product and process for the flame retardant treatment of textile material containing polyacrylic fibres Download PDF

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Publication number
EP0038090B1
EP0038090B1 EP81200288A EP81200288A EP0038090B1 EP 0038090 B1 EP0038090 B1 EP 0038090B1 EP 81200288 A EP81200288 A EP 81200288A EP 81200288 A EP81200288 A EP 81200288A EP 0038090 B1 EP0038090 B1 EP 0038090B1
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EP
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Prior art keywords
weight
dispersion
parts
process according
binder
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EP81200288A
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German (de)
French (fr)
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EP0038090A1 (en
Inventor
Heinz Georg Nold
Gerrit Hagens
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Geiser AG Tenta-Werke
Lauterburg & Cie AG Bunt- und Leinenweberei
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Geiser AG Tenta-Werke
Lauterburg & Cie AG Bunt- und Leinenweberei
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Priority to AT81200288T priority Critical patent/ATE6949T1/en
Publication of EP0038090A1 publication Critical patent/EP0038090A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/47—Oxides or hydroxides of elements of Groups 5 or 15 of the Periodic Table; Vanadates; Niobates; Tantalates; Arsenates; Antimonates; Bismuthates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/152—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen having a hydroxy group bound to a carbon atom of a six-membered aromatic ring
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/415—Amides of aromatic carboxylic acids; Acylated aromatic amines

Definitions

  • the present invention relates to an agent in the form of a dispersion for the flame-retardant finish of textile material containing polyacrylonitrile fibers, to a process for the preparation of the agent and to the use of the agent, preferably for permanent flame-retardant and water-repellent finish for blind and awning fabrics.
  • synthetic fibers made of polyacrylonitrile (PAN) are preferred due to their excellent light and weather resistance for the production of fabrics for sun blinds, awnings, tents, tropical clothing, raincoats and curtains, alone or in a mixture with other natural and / or chemical fibers .
  • flame-retardant properties or poor flammability or flammability are required today.
  • the flame-retardant effect is particularly advantageous in the case of textile fabrics which are used in public buildings, such as hospitals, schools, administration buildings and the like. This applies in particular to sun blind and awning fabrics. It goes without saying that, especially in the case of fabrics of this type which are constantly exposed to all weather influences, the flame-retardant effect or poor flammability and flammability must be permanent and weather-resistant.
  • PAN fibers mainly contain PAN fibers and, in addition, natural and / or other chemical fibers.
  • Preferred blend components for this are cotton as a natural fiber and of the chemical fibers PES, PA and in particular halogen-containing PAN fibers, such as “Dralon” C, “Acrilan” SEF and “Dolan” spec.
  • the agent according to the invention enables flame-retardant equipment to be achieved which corresponds to European standards, for example SNV 198 898 and DIN 4102 B2.
  • the flame-retardant effect of the agent according to the invention results from the combination of antimony trioxide with the light and weather-resistant organic halogen compound N, N-ethylene-bis-tetrabromophthalimide.
  • the permanent effect or resistance of the flame-retardant finish results from the use of a binder that can be hardened or gelled by heat treatment at 160 ° C.
  • a binder that can be hardened or gelled by heat treatment at 160 ° C.
  • curing can take place by crosslinking, condensation, physical drying or vulcanization.
  • Preferred binders are those based on a dispersion of an acrylic resin, such as “Primal” from Rohm and Haas, or a vinylidene chloride, such as “Diofan” from BASF.
  • a preferred dispersant is, for example, the sodium salt of a copolymer of diisobutyl and maleic acid.
  • Pigments suitable for use include, for example, »Unispers« and »Oremasin « from Ciba-Geigy.
  • the use of softened water as a dispersion medium is advantageous.
  • ketones or aromatic or aliphatic hydrocarbons are suitable.
  • the order of addition and processing of the individual components specified in patent claims 9-11 must also be observed.
  • the grinding and predispersion of N, N-ethylene-bis-tetrabromophthalimide and the antimony trioxide in the presence of the dispersant in the total amount of the dispersion medium used for the particular embodiment of the agent in the first process step up to a grain size of at most 1 1 1 m can be carried out in one Ball, colloid or pearl mill.
  • the predispersion obtained in the first process step is introduced and the binder is slowly added and stirred in, a normal low-speed agitator advantageously being used. The stirring is continued until a homogeneous dispersion is achieved.
  • pigments, persistent hydrophobizing agents and, if appropriate, further additives are also to be used, these must be stirred into the homogeneous dispersion obtained after adding the binder in the order given, with slow addition, and stirred until a homogeneous dispersion is again achieved.
  • a stirring time of about 10 minutes is required for a batch of 100 kg of the impregnation liquor.
  • An impregnating liquor produced in this way can be used in a known manner for the impregnation and flame-retardant finishing of any textile materials, mainly containing PAN fibers, such as loose fibers, yarns, fabrics, knitted fabrics, nonwovens.
  • agent according to the invention for permanent flame-retardant and water-repellent finishing of fabrics for sun blinds and awnings.
  • the washed and dried fabric is then impregnated by means of a 2 or 3 roller pad with an impregnation liquor prepared as described above in the form of a homogeneous dispersion of the composition below, dried on the tenter at 100 ° C. and then a heat treatment at 160 ° C. subjected.
  • the fabric which is now permanently flame-retardant and water-repellent, can then be rolled up and used for further processing into sun blinds or awnings.
  • the aqueous predispersion obtained was placed in a container with an ordinary low-speed anchor stirrer, and 40 parts of an aqueous acrylic resin dispersion "Primal" were slowly added as a binder while stirring, and the stirring was continued at a low number of turns until a homogeneous Dispersion was obtained.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Fireproofing Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

1. Process for the flame-resistant finishing of textile materials containing polyacrylnitrile fibres by impregnation of the washed and dried textile materials with a dispersion and subsequent drying at 100 degrees C and heat treatment at 160 degrees C, characterized in that the dispersion contains 30-60 parts by weight of a hardenable or gellable binder, 15-40 parts by weight of N,N-ethylene-bis-tetrabromophthalimide, 10-20 parts by weight of antimony trioxide, 0,5-1 part by weight of a dispersing agent, and water or an organic solvent as the dispersion medium.

Description

Die vorliegende Erfindung bezieht sich auf ein Mittel in Form einer Dispersion für die flammhemmende Ausrüstung von Polyacrylnitrilfasern enthaltendem Textilmaterial, auf ein Verfahren zur Herstellung des Mittels und auf die Verwendung des Mittels, bevorzugt für permanente flammhemmende und wasserabweisende Ausrüstung von Storen- und Markisengeweben.The present invention relates to an agent in the form of a dispersion for the flame-retardant finish of textile material containing polyacrylonitrile fibers, to a process for the preparation of the agent and to the use of the agent, preferably for permanent flame-retardant and water-repellent finish for blind and awning fabrics.

Neben anderen bewährten Einsatzgebieten werden Chemiefasern aus Polyacrylnitril (PAN) aufgrund ihrer hervorragenden Licht- und Wetterbeständigkeit für die Herstellung von Geweben für Sonnenstoren, Markisen, Zelten, Tropenbekleidung, Regenmäntel und von Gardinen, allein oder im Gemisch mit anderen natürlichen und/oder Chemiefasern, bevorzugt.In addition to other proven fields of application, synthetic fibers made of polyacrylonitrile (PAN) are preferred due to their excellent light and weather resistance for the production of fabrics for sun blinds, awnings, tents, tropical clothing, raincoats and curtains, alone or in a mixture with other natural and / or chemical fibers .

Für die meisten derartigen Verwendungszwecke werden heute neben guten textilen Eigenschaften auch flammhemmende Eigenschaften bzw. schlechte Brenn- oder Entflammbarkeit verlangt. Insbesondere bei textilen Flächengebilden, die in öffentlichen Bauten, wie Krankenhäusern, Schulen, Verwaltungsgebäuden und dergleichen zum Einsatz gelangen, ist die flammhemmende Wirkung vorteilhaft. Dies gilt insbesondere für Sonnenstoren- und Markisengewebe. Es ist selbstverständlich, daß gerade bei derartigen Geweben, die ständig sämtlichen Witterungseinflüssen ausgesetzt sind, die flammhemmende Wirkung bzw. schlechte Entflamm- und Brennbarkeit, permanent und wetterbeständig sein muß.For most such uses, in addition to good textile properties, flame-retardant properties or poor flammability or flammability are required today. The flame-retardant effect is particularly advantageous in the case of textile fabrics which are used in public buildings, such as hospitals, schools, administration buildings and the like. This applies in particular to sun blind and awning fabrics. It goes without saying that, especially in the case of fabrics of this type which are constantly exposed to all weather influences, the flame-retardant effect or poor flammability and flammability must be permanent and weather-resistant.

Aus der FR-A-2 204 675 ist ein Verfahren zur flammhemmenden Ausrüstung von Textilen bekannt, worin neben Bindemitteln eine Kombination von Halobromverbindungen und Metalloxiden verwendet wird. Gemäß dieser Druckschrift werden die besten Resultate erzielt, wenn die halobromierten Verbindungen in einem synergetischen Verhältnis zum Metalloxid vorliegen, das 3 bis 7 : 1 und vorzugsweise 4 bis 6 : 1 beträgt.From FR-A-2 204 675 a process for flame retardant finishing of textiles is known, in which a combination of halobromine compounds and metal oxides is used in addition to binders. According to this publication, the best results are achieved if the halobrominated compounds are in a synergetic ratio to the metal oxide which is 3 to 7: 1 and preferably 4 to 6: 1.

Überraschenderweise wurde nun gefunden, daß eine besonders licht- und wetterbeständige, flammhemmende Ausrüstung von Polyacrylnitrilfasern enthaltendem Textilmaterial hergestellt werden kann, wenn das Verhältnis Halogenverbindung zu Sb203 in der Imprägnierflotte den Verhältnissen des Anspruchs 1 entspricht und wenn als Halogenverbindung N,N-Ethylen-bis-tetrabromphthalimid verwendet wird.Surprisingly, it has now been found that a particularly light and weather-resistant, flame-retardant finish of textile material containing polyacrylonitrile fibers can be produced if the ratio of halogen compound to Sb 2 0 3 in the impregnation liquor corresponds to the ratios of claim 1 and if N, N-ethylene is used as the halogen compound -bis-tetrabromophthalimide is used.

Storen- und Markisengewebe auf Basis von PAN-Fasern sind zwar auf dem Markt bereits erhältlich, vermögen die gestellten Anforderungen jedoch nicht vollständig zu befriedigen, da sie einerseits nicht das gewünschte Ausmaß einer flammhemmenden Wirkung aufweisen und andererseits durch die flammhemmende Ausrüstung einen wesentlichen Teil ihres textilen Aussehens verloren haben.Blind and awning fabrics based on PAN fibers are already available on the market, but are not able to fully meet the requirements, because on the one hand they do not have the desired level of flame-retardant effect and on the other hand a significant part of their textile properties due to the flame-retardant finish Have lost appearance.

Dem Fachmann aus der Textilveredlung und insbesondere auch dem Hersteller von Textilveredlungsmitteln ist es bekannt, daß es bisher nicht möglich war, zur Hauptsache aus PAN-Fasern bestehende Textilmaterialien unter Erhaltung ihrer textilen Eigenschaften permanent flammhemmend auszurüsten, wobei sogar eine derartige nichtpermanente Ausrüstung nur in beschränktem Ausmaß möglich ist.It is known to the person skilled in the field of textile finishing and in particular also to the manufacturer of textile finishing agents that it has so far not been possible to provide textile materials consisting mainly of PAN fibers with permanent flame-retardant properties while maintaining their textile properties, even such a non-permanent finish only to a limited extent is possible.

Aus den bereits erwähnten Gründen besteht jedoch erhebliches Interesse an einer permanenten flammhemmenden Ausrüstung von PAN-Fasern enthaltenden Textilmaterialien, die in der Textilveredlungsindustrie unter Einsatz der dort bereits vorhandenen Einrichtung auf einfache Art und unter Erhaltung dertextilen Eigenschaften des behandelten Textilmaterials appliziert werden kann.For the reasons already mentioned, however, there is considerable interest in a permanent flame-retardant finish for textile materials containing PAN fibers, which can be applied in the textile finishing industry using the device already present there in a simple manner and while maintaining the textile properties of the treated textile material.

Es ist Aufgabe der vorliegenden Erfindung, ein Mittel zu schaffen, dessen Verwendung die Lösung der gestellten Aufgabe ermöglicht.It is an object of the present invention to provide a means, the use of which enables the object to be achieved.

Es wurde nun gefunden, daß die im Patentanspruch 7 angegebene Kombination von Antimontrioxid mit der licht- und wetterechten organischen Verbindung N,N-Ethylen-bis-tetrabromphthalimid in einem härt- oder gelierbaren Bindemittel eine nachträgliche flammhemmende Ausrüstung von PAN-Fasern enthaltendem Textilmaterial unter den Verfahrensbedingungen des Anspruchs 1 ermöglicht, durch welche die textilen Eigenschaften nicht beeinträchtigt werden und die gute und permanente flammhemmende Eigenschaften ergibt.It has now been found that the combination of antimony trioxide with the lightfast and weatherproof organic compound N, N-ethylene-bis-tetrabromophthalimide specified in claim 7 in a hardenable or gellable binder is a subsequent flame retardant finish of PAN-containing textile material among the Process conditions of claim 1 enables through which the textile properties are not impaired and gives good and permanent flame retardant properties.

Die besten Effekte einer permanent flammhemmenden Ausrüstung unter Verwendung des erfindungsgemäßen Mittels werden auf Textilmaterialien aus Fasergemischen erzielt, die zur Hauptsache PAN-Fasern und daneben natürliche und/oder andere Chemiefasern enthalten. Hierfür bevorzugte Mischungskomponenten sind Baumwolle als natürliche Faser und von den Chemiefasern PES-, PA-und insbesondere halogenhaltige PAN-Fasern, wie »Dralon« C, »Acrilan« SEF und »Dolan« spez.The best effects of a permanently flame-retardant finish using the agent according to the invention are achieved on textile materials from fiber mixtures which mainly contain PAN fibers and, in addition, natural and / or other chemical fibers. Preferred blend components for this are cotton as a natural fiber and of the chemical fibers PES, PA and in particular halogen-containing PAN fibers, such as “Dralon” C, “Acrilan” SEF and “Dolan” spec.

Das erfindungsgemäße Mittel ermöglicht in Abhängigkeit von dessen Anwendungskonzentration die Erzielung einer flammhemmenden Ausrüstung, die den europäischen Normen, beispielsweise SNV 198 898 und DIN 4102 B2, entspricht.Depending on its application concentration, the agent according to the invention enables flame-retardant equipment to be achieved which corresponds to European standards, for example SNV 198 898 and DIN 4102 B2.

Es hat sich gezeigt, daß die bei konventionellen Verfahren zur flammhemmenden Ausrüstung häufig auftretenden Nachteile, wie Herabsetzung der Licht- und Wetterechtheit des behandelten Textilmaterials, erhöhte Korrosionsgefahr und dergleichen, bei Verwendung des erfindungsgemäßen Mittels nicht auftreten.It has been shown that the disadvantages which occur frequently in conventional methods for flame retardant finishing, such as lowering the light and weather fastness of the treated textile material, increased risk of corrosion and the like, do not occur when the agent according to the invention is used.

Zusätzliche, heute im allgemeinen übliche Anforderungen, wie wasserabweisende, fungizide und bakterizide Ausrüstung, mit oder ohne gleichzeitige Füllung und/oder Anfärbung mit organischen und/oder anorganischen Pigmenten, können durch Kombination der entsprechenden Mittel mit dem erfindungsgemäßen Mittel bei dessen Verwendung für die flammhemmende Permanentausrüstung ohne weiteres erfüllt werden.Additional requirements that are common today, such as water-repellent, fungicidal and bactericidal finishing, with or without simultaneous filling and / or coloring with organic and / or inorganic pigments, can be achieved by combining the appropriate agents with the agents according to the invention are easily met when used for the flame-retardant permanent equipment.

Die flammhemmende Wirkung des erfindungsgemäßen Mittels ergibt sich aus der Kombination von Antimontrioxid mit der licht- und wetterechten organischen Halogenverbindung N,N-Ethylen-bis- tetrabromphthalimid.The flame-retardant effect of the agent according to the invention results from the combination of antimony trioxide with the light and weather-resistant organic halogen compound N, N-ethylene-bis-tetrabromophthalimide.

Die permanente Wirkung bzw. Beständigkeit der flammhemmenden Ausrüstung ergibt sich aus der Verwendung eines durch eine Wärmebehandlung bei 160° C härt- oder gelierbaren Bindemittels. Bei härtbaren Bindemitteln kann die Härtung durch Vernetzung, Kondensation, physikalische Trocknung oder Vulkanisation erfolgen. Bevorzugte Bindemittel sind solche auf Basis einer Dispersion eines Acrylharzes, wie »Primal« von Rohm und Haas, oder eine Vinylidenchlorids, wie »Diofan« der BASF. Ein bevorzugtes Dispergiermittel ist beispielsweise das Natriumsalz eines Copolymers von Diisobutyl und Maleinsäure.The permanent effect or resistance of the flame-retardant finish results from the use of a binder that can be hardened or gelled by heat treatment at 160 ° C. In the case of curable binders, curing can take place by crosslinking, condensation, physical drying or vulcanization. Preferred binders are those based on a dispersion of an acrylic resin, such as “Primal” from Rohm and Haas, or a vinylidene chloride, such as “Diofan” from BASF. A preferred dispersant is, for example, the sodium salt of a copolymer of diisobutyl and maleic acid.

Falls Permanent-Hydrophobierungsmittel mitverwendet werden sollen, ist hierfür beispielsweise eine Lösung auf Basis von Fluorkohlenwasserstoff oder von Siliconen geeignet.If permanent hydrophobicizing agents are also to be used, a solution based on fluorocarbon or of silicone is suitable for this purpose, for example.

Für die Mitverwendung geeignete Pigmente sind beispielsweise »Unispers« und »Oremasin« von Ciba-Geigy.Pigments suitable for use include, for example, »Unispers« and »Oremasin« from Ciba-Geigy.

Für die Herstellung des erfindungsgemäßen Mittels in Form einer wäßrigen Dispersion ist die Verwendung von enthärtetem Wasser als Dispersionsmedium von Vorteil.For the preparation of the agent according to the invention in the form of an aqueous dispersion, the use of softened water as a dispersion medium is advantageous.

Bei Verwendung eines organischen Lösungsmittels als Dispersionsmediums sind beispielsweise Ketone oder aromatische oder aliphatische Kohlenwasserstoffe, einzeln oder im Gemisch untereinander, geeignet.When using an organic solvent as the dispersion medium, for example ketones or aromatic or aliphatic hydrocarbons, individually or in a mixture with one another, are suitable.

Bei der Herstellung des erfindungsgemäßen Mittels ist außerdem die in den Patentansprüchen 9-11 angegebene Reihenfolge der Zugabe und Verarbeitung der einzelnen Komponenten unbedingt einzuhalten. Das Vermahlen und Vordispergieren von N,N-Ethylen-bis-tetrabromphthalimid und des Antimontrioxids in Gegenwart des Dispergiermittels in der Gesamtmenge des für die jeweilige Ausführungsform des Mittels zum Einsatz gelangenden Dispersionsmediums im ersten Verfahrensschritt bis zu einer Korngröße vo höchstens 1 11m kann in einer Kugel-, Kolloid- oder Perlreibmühle erfolgen. Im zweiten Verfahrensschritt wird die im ersten Verfahrensschritt erhaltene Vordispersion vorgelegt und das Bindemittel langsam zugegeben und eingerührt, wobei zweckmäßig ein normales Rührwerk geringer Tourenzahl zum Einsatz gelangt. Das Rühren wird fortgesetzt, bis eine homogene Dispersion erzielt ist. Falls Pigmente, Pemanent-Hydrophobierungsmittel und gegebenenfalls weitere Zusatzmittel mitverwendet werden sollen, müssen diese in der angegebenen Reihenfolge unter langsamer Zugabe in die nach Zusatz des Bindemittels erhaltene homogene Dispersion eingerührt und so lange gerührt werden, bis wiederum eine homogene Dispersion erzielt ist. Für einen Ansatz von 100 kg der Imprägnierflotte wird hierbei eine Rührdauer von etwa 10 min benötigt.When producing the agent according to the invention, the order of addition and processing of the individual components specified in patent claims 9-11 must also be observed. The grinding and predispersion of N, N-ethylene-bis-tetrabromophthalimide and the antimony trioxide in the presence of the dispersant in the total amount of the dispersion medium used for the particular embodiment of the agent in the first process step up to a grain size of at most 1 1 1 m can be carried out in one Ball, colloid or pearl mill. In the second process step, the predispersion obtained in the first process step is introduced and the binder is slowly added and stirred in, a normal low-speed agitator advantageously being used. The stirring is continued until a homogeneous dispersion is achieved. If pigments, persistent hydrophobizing agents and, if appropriate, further additives are also to be used, these must be stirred into the homogeneous dispersion obtained after adding the binder in the order given, with slow addition, and stirred until a homogeneous dispersion is again achieved. For a batch of 100 kg of the impregnation liquor, a stirring time of about 10 minutes is required.

Eine solcherart hergestellte Imprägnierflotte kann für die Imprägnierung und flammhemmende Ausrüstung von beliebigen, zur Hauptsache PAN-Fasern enthaltenden Textilmaterialien, wie lose Fasern, Garne, Gewebe, Gewirke, Nonwovens auf bekannte Art zum Einsatz gelangen.An impregnating liquor produced in this way can be used in a known manner for the impregnation and flame-retardant finishing of any textile materials, mainly containing PAN fibers, such as loose fibers, yarns, fabrics, knitted fabrics, nonwovens.

Besonders bevorzugt wird die Verwendung des erfindungsgemäßen Mittels für permanente flammhemmende und wasserabweisende Ausrüstung von Gewebe für Sonnenstoren und Markisen.It is particularly preferred to use the agent according to the invention for permanent flame-retardant and water-repellent finishing of fabrics for sun blinds and awnings.

Im nachstehenden wird eine derartige Ausrüstungsbehandlung eines Gewebes aus gleichen Gewichtsanteilen PAN- und PAM-Fasern beispielsweise erläutert:

  • Das Ausgangsgewebe wird auf gebräuchliche Art bei 70-80° C alkalisch oder sauer ausgewaschen und auf einer Spannrahme bei etwa 100° C getrocknet.
In the following, such a finishing treatment of a fabric made of equal parts by weight of PAN and PAM fibers is explained for example:
  • The starting fabric is washed out in a customary manner at 70-80 ° C in an alkaline or acidic manner and dried on a tenter at about 100 ° C.

Anschließend wird das gewaschene und getrocknete Gewebe mittels eines 2- oder 3-Walzen-Foulards mit einer wie vorstehend beschrieben hergestellten Imprägnierflotte in Form einer homogenen Dispersion der nachstehenden Zusammensetzung imprägniert, auf der Spannrahme bei 100°C getrocknet und danach einer Wärmebehandlung bei 160° C unterzogen. Das nun permanent flammhemmende und wasserabweisend ausgerüstete Gewebe kann dann aufgerollt und der Weiterverarbeitung zu Sonnenstoren oder Markisen zugeführt werden.The washed and dried fabric is then impregnated by means of a 2 or 3 roller pad with an impregnation liquor prepared as described above in the form of a homogeneous dispersion of the composition below, dried on the tenter at 100 ° C. and then a heat treatment at 160 ° C. subjected. The fabric, which is now permanently flame-retardant and water-repellent, can then be rolled up and used for further processing into sun blinds or awnings.

Die Imprägnierflotte enthielt die nachstehend angeführten Komponenten, die in den angegebenen Mengenanteilen wie folgt zu einer homogenen wäßrigen Dispersion verarbeitet wurden, wobei die Mengenanteile der einzelnen Komponenten in Gewichtsteilen (T) ausgedrückt sind:

  • 26 T der licht- und wetterechten organischen Halogenverbindung N,N-Ethylen-bis-tetrabromphthal- imid und 15 T Antimontrioxid wurden in Gegenwart von 1 T des Natriumsalzes eines Copolymers von Diisobutyl und Maleinsäure als Dispergiermittel und von 24 T enthärtetem Wasser in einer Kolloidmühle auf eine Korngröße von etwa 0,9 11m gemahlen, wobei eine wäßrige Dispersion erhalten wurde.
The impregnation liquor contained the components listed below, which were processed in the stated proportions as follows to form a homogeneous aqueous dispersion, the proportions of the individual components being expressed in parts by weight (T):
  • 26 T of the light and weather-resistant organic halogen compound N, N-ethylene-bis-tetrabromophthalimide and 15 T antimony trioxide were in a colloid mill in the presence of 1 T of the sodium salt of a copolymer of diisobutyl and maleic acid as a dispersant and of 24 T of softened water a grain size of about 0.9 m was milled, an aqueous dispersion being obtained.

Die erhaltene wäßrige Vordispersion wurde in einem Behälter mit einem gewöhnlichen, mit niedriger Tourenzahl angetriebenen Ankerrührer vorgelegt, und unter Rühren wurden als Bindemittel 40 T einer wäßrigen Acrylharzdispersion »Primal« langsam zugegeben, und das Rühren wurde bei niedriger Tourenzahl so lange fortgesetzt, bis eine homogene Dispersion erhalten wurde.The aqueous predispersion obtained was placed in a container with an ordinary low-speed anchor stirrer, and 40 parts of an aqueous acrylic resin dispersion "Primal" were slowly added as a binder while stirring, and the stirring was continued at a low number of turns until a homogeneous Dispersion was obtained.

In die erhaltene Dispersion wurden dann nacheinander und unter fortgesetztem Rühren bei niedriger Tourenzahl und langsamer Zugabe zuerst 3 T eines feindispersen wäßrigen Pigmentteigs »Unispers« und danach 5 T eines Permanent-Hydrophobierungsmittels in Form einer Lösung von Fluorkohlenwasserstoff eingerührt, und das Rühren bei niedriger Tourenzahl wurde so lange fortgesetzt, bis eine homogene wäßrige Dispersion vorlag.Then, in succession and with continued stirring at a low number of turns and slow addition, first 3 parts of a finely dispersed aqueous pigment paste "Unispers" and then 5 parts of a permanent hydrophobizing agent in the form of a solution of fluorocarbon were stirred into the resulting dispersion, and the stirring was carried out at a low number of turns continued until there was a homogeneous aqueous dispersion.

Der flammhemmende Effekt des solchermaßen ausgerüsteten Gewebes erfüllte die Anforderungen der Prüfnorm der SNV 198 898.The flame retardant effect of the fabric treated in this way met the requirements of the test standard of SNV 198 898.

Bei den in Anführungszeichen gesetzten Produktenamen handelt es sich um eingetragene Warenzeichen.The product names in quotation marks are registered trademarks.

Claims (11)

1. Process for the flame-resistant finishing of textile materials containing polyacrylnitrile fibres by impregnation of the washed and dried textile materials with a dispersion and subsequent drying at 100° C and heat treatment at 160° C, characterized in that the dispersion contains
30-60 parts by weight of a hardenable or gellable binder,
15-40 parts by weight of N,N-ethylene-bis-tetrabromophthalimide,
10-20 parts by weight of antimony trioxide,
0,5-1 part by weight of a dispersing agent, and

water or an organic solvent as the dispersion medium.
2. Process according to claim 1, wherein the textile materials contain, besides at least 50% by weight of polyacrylnitrile fibres, cotton and/or other man-made, particularly halogen-containing, fibres.
3. Process according to claim 1 or 2, wherein the dispersion additionally contains 2-5 parts by weight of an organic or inorganic pigment or of a mixture of such pigments.
4. Process according to one of the claims 1-3, wherein the dispersion additionally contains 3-6 parts by weight of a permanent-waterproofing agent.
5. Process according to one of the claims 1-4, wherein the dispersion medium is either softened water, a ketone, an aromatic or aliphatic hydrocarbon, or a mixture of such hydrocarbons.
6. Process according to one of the claims 1-5, wherein the binder is hardenable by cross-linking, condensation, physical drying, or vulcanization.
7. Agent for carrying out the process according to claim 1 in the form of a dispersion containing
30-60 parts by weight of a hardenable and gellable binder,
15-40 parts by weight of N,N-ethylene-bis-tetrabromophthalimide,
10-20 parts by weight of antimony trioxide,
0,5-1 part by weight of a dispersing agent, and

water or an organic solvent as the dispersion medium.
8. Agent according to claim 7, additionally containing 3-6 parts by weight of a permanent-waterproofing agent and/or of an organic or inorganic pigment.
9. Process for preparing the agent according to claim 7, characterized in that in a first process step the organic halogen compound and the antimony trioxide are dispersed and ground to a grain size of at most 1 micron in the presence of the dispersing agent in the entire quantitative proportion of the dispersion medium, and that at least the binder is slowly added to the resultant pre-dispersion with stirring at a low speed of rotation, and stirring is continued at a low speed of rotation until a homogeneous dispersion is obtained.
10. Process according to claim 9, characterized in that in the second process step organic or inorganic pigment is stirred into the binder-containing dispersio a low speed of rotation, and stirring is continued until a homogeneous dispersion is obtained.
11. Process according to claim 9 or 10, characterized in that in the second process step a permanent-waterproofing agent is stirred at a low speed of rotation into the dispersion containing binder and, as the case may be, pigment or a pigment mixture, and stirring is continued until a homogeneous dispersion is obtained.
EP81200288A 1980-04-03 1981-03-13 Product and process for the flame retardant treatment of textile material containing polyacrylic fibres Expired EP0038090B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81200288T ATE6949T1 (en) 1980-04-03 1981-03-13 MEANS AND PROCESSES FOR THE FIRE RETARDANT PROCESSING OF TEXTILE MATERIAL CONTAINING POLYACRYLNITRILE FIBERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2632/80 1980-04-03
CH263280 1980-04-03

Publications (2)

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EP0038090A1 EP0038090A1 (en) 1981-10-21
EP0038090B1 true EP0038090B1 (en) 1984-04-04

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EP (1) EP0038090B1 (en)
AT (1) ATE6949T1 (en)
DE (1) DE3162921D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9119593D0 (en) * 1991-09-12 1991-10-23 Warwick Int Group Flame retardant composition for textiles
AU648738B3 (en) * 1992-06-19 1994-04-28 Kelvin Harold Arnold Vertical and roller blinds made of treated fabric
JP2009542925A (en) * 2006-07-05 2009-12-03 アルベマール・ユーロプ・エスピーアールエル Textile products with flame retardant back coating and methods for making the same
CN116446175A (en) * 2023-06-15 2023-07-18 北京爱思达航天科技有限公司 Flame-retardant composite material and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877974A (en) * 1972-10-25 1975-04-15 White Chemical Corp Flame retardants for blends of natural and synthetic fibers

Also Published As

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DE3162921D1 (en) 1984-05-10
ATE6949T1 (en) 1984-04-15
EP0038090A1 (en) 1981-10-21

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