EP1458910B1 - Composite yarn, method for obtaining same and resulting textile structure - Google Patents

Composite yarn, method for obtaining same and resulting textile structure Download PDF

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Publication number
EP1458910B1
EP1458910B1 EP02799125A EP02799125A EP1458910B1 EP 1458910 B1 EP1458910 B1 EP 1458910B1 EP 02799125 A EP02799125 A EP 02799125A EP 02799125 A EP02799125 A EP 02799125A EP 1458910 B1 EP1458910 B1 EP 1458910B1
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EP
European Patent Office
Prior art keywords
composite yarn
polymer material
coating
polymer
fire
Prior art date
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Expired - Lifetime
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EP02799125A
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German (de)
French (fr)
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EP1458910A2 (en
Inventor
Isabelle Conesa
Philippe Berge
Laurence Pollet
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Chavanoz Industrie SARL
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Chavanoz Industrie SARL
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/404—Yarns or threads coated with polymeric solutions
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber

Definitions

  • the present invention relates to a composite yarn for technical or industrial use, which can be assembled in all types of textile structures, especially suitable textile webs, to meet any particular application or specification, for example for the manufacture of blinds or curtains. More particularly the invention relates to composite son obtainable by coating.
  • such a yarn is obtained by coating in one or two layers, the core with a plastisol comprising the chlorinated polymer material, for example polyvinyl chloride, and the plasticizer, then by gelling the plastisol around the soul.
  • a plastisol comprising the chlorinated polymer material, for example polyvinyl chloride, and the plasticizer, then by gelling the plastisol around the soul.
  • the regulations applicable to such fabrics in the Federal Republic of Germany define different classifications, characterized in particular by the length of the sample destroyed by the fire, and by the temperature of the combustion fumes, and identified by the letters B1 to B3. , the letter B1 characterizing the best fire performance accessible by a material comprising organic materials.
  • a flame retardant filler comprising a chlorinated polyethylene, a compound chosen from oxides and / or hydroxides of antimony, and aluminum, and preferably another compound chosen from certain zinc salts, including zinc borate; tin products for example zinc stannate.
  • the subject of the present invention is a coated composite yarn having generally and inherently improved fire behavior, by promoting the dissipation of heat and by greatly reducing the random phenomenon of flame spread measured by fire tests according to the standard NF P 92 503 on any fabric obtained from the composite yarn according to the invention.
  • the properties of temperature resistance are improved because of the regular distribution of the fibers in the coating polymer material which allows the dissipation of heat, indeed when the fibers are grouped together they constitute a preferred conduction pathway which promotes the propagation of the heat.
  • the present invention relates to a composite yarn consisting of a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers such as linen or cotton, and a polymer material, characterized in that the constituent fibers of said continuous wire are distributed uniformly in said polymeric material such that each of said fibers is coated by said polymeric material.
  • This composite yarn can be used alone or as a core for the manufacture of composite yarns obtained by a second coating with a polymer material.
  • the present invention also relates to a coated composite yarn obtainable by a coating process with a polymer material, characterized in that it comprises a core constituted by a composite yarn as defined above and that the polymeric material formed around the core and the constituent polymeric material of the core are of the same nature.
  • this composite yarn is likely to be used as a core for the manufacture of flame retardant composite yarns obtained by coating with polymers having fire-retardant fillers.
  • son generally and inherently has improved fire behavior using less flame retardant filler.
  • the present invention also relates to a coated flame retardant composite yarn obtainable by a coating process with a polymer material comprising a flame-retardant filler, characterized in that it comprises a core constituted by a composite yarn as defined above. and in that the polymeric material formed around the core and the constituent polymeric material of the core are of the same nature.
  • said coating can be carried out with a liquid monomer or polymer preparation, for example a liquid polymer preparation is obtained by melting a polymer or by dispersion, for example in the form of plastisol, and for example a liquid monomer preparation consists of a liquid monomer which will polymerize under the effect of heat or by irradiation, for example UV irradiation.
  • a liquid monomer preparation is obtained by melting a polymer or by dispersion, for example in the form of plastisol
  • a liquid monomer preparation consists of a liquid monomer which will polymerize under the effect of heat or by irradiation, for example UV irradiation.
  • the invention also relates to the method of manufacturing a composite yarn characterized in that subject a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers, to a method of mechanical opening of the yarn allowing the separation of said fibers, simultaneously or prior to its coating with a polymer material.
  • It also relates to the method of manufacturing a composite yarn characterized in that subject a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers, to a method of mechanical opening of the yarn allowing separating said fibers, simultaneously or prior to a primary coating with a liquid monomer or polymer preparation in the liquid state, and in that the composite yarn obtained is subjected to a second coating with a liquid preparation of monomer or polymer.
  • the monomer or polymer of the second coating is of the same kind as the monomer or polymer of the first coating.
  • It also relates to the method of manufacturing a fireproof composite yarn characterized in that subject a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers, to a method of mechanical opening of the yarn allowing the separation of said fibers, simultaneously or prior to a primary coating with a liquid preparation of monomer or polymer in the liquid state not comprising no flame retardant filler, and in that the composite yarn obtained is subjected to a second coating with a liquid monomer or polymer preparation in the liquid state with a flame retardant filler.
  • mechanical opening any process which simultaneously or before the coating allows the opening of the fibers such as the derating, by the application of an air jet, a jet of water, a treatment by ultrasounds, the application of a mechanical pressure, for example a crushing of the wire or any method for removing the fibers to allow penetration of the polymeric material within the constituent fibers of said wire.
  • the yarn according to the invention has none of the stripping and shading phenomena observed with the yarns of the prior art.
  • liquid preparation of monomers or polymers is meant any liquid formulation based on monomers or polymers.
  • formulation any mixture comprising at least one product for example dispersion, solution, mixture of monomers and / or oligomers.
  • polymer dispersion any split-state polymer preparation comprising additives in an organic liquid or not.
  • plastisol is meant a dispersion of polymers, fillers and other additives, in the finely divided state, in a plasticizer.
  • polymer material it is possible to use chlorinated polymers, silicones, polyurethanes, acrylics, ethylene-vinyl acetate EVA copolymers, ethylene propylene diene monomer terpolymers, EPDM.
  • chlorinated polymer material it is possible to use, in accordance with the invention, any PVC resin that can be plasticized, and in particular that can therefore be used in the form of plastisol.
  • chlorinated polymer material is meant, or a pure chlorinated polymer or copolymer of vinyl chloride copolymerized with other monomers, or a chlorinated polymer that is alloyed with other polymers.
  • olefins such as, for example, ethylene, vinyl esters of saturated carboxylic acids, such as vinyl acetate, vinyl butyrate or maleates; halogenated vinyl derivatives such as, for example, vinylidene chloride, esters of acrylic or methacrylic acid such as butyl acrylate.
  • chlorinated polymers examples include polyvinyl chloride, but also chlorinated PVCs, polyvinylidene chlorides and chlorinated polyolefins.
  • the chlorinated polymer material according to the present invention has a weight content of halogen of between 40 and 70%.
  • silicone polymer material it is possible to use according to the invention the organopolysiloxanes and more particularly the polysiloxane resins and elastomers with or without a diluent.
  • polyurethane polymer material it is possible to use according to the invention any material consisting of a hydrocarbon chain comprising the urethane or -NHCOO- unit.
  • the continuous wire it is itself constituted by one or more continuous filaments or fibers. Its chemical nature may be organic, for example polyester, polyamide, polyvinyl, acrylic, of natural origin such as linen or cotton, or inorganic, for example glass or silica, it being understood that its melting point must be greater than that of implementation of the polymer material
  • the flame retardant filler is selected from the group consisting of zinc borate, aluminum hydroxide, antimony trioxide and zinc hydroxystannate, molybdenum compounds, halogenated derivatives, active halogen compounds, phosphorus compounds and intumescent systems.
  • fillers may be incorporated and dispensed in the liquid preparation of monomers or polymers, in addition to the flame retardant filler, for example a pigment filler, silica, talc, glass beads and / or a stabilizing filler.
  • a pigment filler silica, talc, glass beads and / or a stabilizing filler.
  • the composition total weight of the composite yarn, in inorganic materials is obviously modified or affected.
  • plasticizers for example comprising at least one phthalate, and therefore not to compromise the properties of implementation of the wire, vis-à-vis its subsequent weaving.
  • the invention also makes it possible to limit the fire-retardant load by weight, in proportions not exceeding 50% of the plastic matrix. Beyond this, there is an alteration of the mechanical properties of the composite yarn.
  • the homogeneous distribution of the fibers 1 in the preparation of monomer or polymer 2 applied in the liquid state and cooled or polymerized after application is observed.
  • the secondary coating 3 is also regularly distributed in the composite yarn according to the invention.
  • the rate of carriage is the rate of impregnation of the wire is defined by the following formula: weight of coated wire - wire weight weight of coated wire ⁇ 100
  • ILO represents the Limit Oxygen Index, it is determined according to standard NF G 07128.
  • a mineral / continuous fiberglass / silionne wire that is to say by subjecting the wire to a mechanical opening by knockout simultaneously or prior to coating with a liquid polymer preparation based on silicone polymer is obtained a fireproof composite wire coated according to the invention without halogen.
  • the coating formulation is defined by a viscosity of between 500 and 10,000 mPa.s and preferably between 1000 and 5000 mPa.s, measured at 25 ° C. with a Brookfield RVT viscometer at 20 rpm, spindle 4.
  • the coating is carried out with a formulation comprising the following products: Silicone 100 pcr Solvent / water 0 to 50 pcr Charges (pigment, flame retardant ..) 0 to 20 pcr crosslinking 2 to 6 pcr additives 0 to 5 pcr additives 0 to 5 pcr
  • the diluents are selected from toluene, xylene, white spirit or water.
  • the fillers consist, for example, of Firebreak ZB zinc borate, aluminum hydroxide (OMYA), SH5n promoter alumina Elastosil 45568 VP or HF86 (WACKER), retarder HTV-SB WACKER), water repellent WS60E (WACKER) or glass beads (SOVITEC), RAL pigment paste from WACKER.
  • OMYA aluminum hydroxide
  • WACKER retarder HTV-SB WACKER
  • WACKER water repellent WS60E
  • SOVITEC glass beads
  • the silicones used are crosslinkable to UV.
  • Fabrics obtained with a composite yarn according to the invention do not need a posterior treatment to improve their fire behavior.
  • a composite yarn according to the invention has no defibrillation at the cut, it is more hydrophobic, its feel is more "soft", and textiles obtained by weaving are antifouling.
  • a composite yarn according to the present invention can be integrated in all textile structures, or assembled in any textile structures required, two-dimensional (webs, fabrics, etc.) or three-dimensional (braids for example).
  • the composite yarn can first be cut and divided into elementary yarns, which can be interwoven and fixed to one another in the form of non-woven textile structures, eg mats. Fixing the elementary son intermingled may be obtained by impregnation with a suitable adhesive substance, or by thermo-fusion of the polymer material of the sheath.
  • the composite yarn can then be assembled on itself, in any suitable knitted textile structures but it can be assembled with other yarns, according to the present invention or not, to constitute different two-dimensional or three-dimensional structures; in the latter case, they may be grids in which the yarns according to the present invention are crisscrossed and fixed with other yarns, according to the present invention or not, and of fabrics, in which the composite yarns according to the invention are woven with other warp and / or weft yarns, also according to the invention or not.
  • a very particular application of the present invention relates to obtaining technical fabrics for the production or manufacture of blinds or curtains both inside and outside.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Woven Fabrics (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Reinforced Plastic Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention concerns a composite yarn consisting of a continuous yarn, obtained by spinning fibers made of organic or inorganic material or natural fibers, and a polymer material. The invention is characterized in that the consecutive fibers said yarn are uniformly distributed in said polymer material such that each of said fibers is coated by said polymer material. The invention also concerns a method for making such a composite yarn and a textile structure obtainable from at least a composite yarn of the invention.

Description

La présente invention concerne un fil composite à usage technique ou industriel, pouvant être assemblé en tous types de structures textiles, notamment nappes textiles appropriées, pour répondre à toutes applications ou spécifications particulières, par exemple pour la fabrication de stores ou rideaux. Plus particulièrement l'invention concerne des fils composites susceptibles d'être obtenus par enduction.The present invention relates to a composite yarn for technical or industrial use, which can be assembled in all types of textile structures, especially suitable textile webs, to meet any particular application or specification, for example for the manufacture of blinds or curtains. More particularly the invention relates to composite son obtainable by coating.

De manière générale on connaît déjà, et la Demanderesse fabrique et vend des fils composites techniques, comprenant :

  • une âme comportant un fil continu, notamment en matériau inorganique comme le verre, ou organique comme le polyester, le polyamide, l'alcool de polyvinyle, et
  • une gaine ou enveloppe comportant une matrice, constituée par au moins un matériau polymère chloré, par exemple un polychlorure de vinyle (PVC), une charge minérale ignifugeante incorporée et distribuée dans ladite matrice, et un plastifiant, voir par exemple FR-A-2 748 496 .
In general, we already know, and the Applicant manufactures and sells technical composite yarns, comprising:
  • a core comprising a continuous yarn, in particular of inorganic material such as glass, or organic such as polyester, polyamide, polyvinyl alcohol, and
  • a sheath or envelope comprising a matrix, constituted by at least one chlorinated polymer material, for example a polyvinyl chloride (PVC), a fire-retardant mineral filler incorporated and distributed in said matrix, and a plasticizer, see for example FR-A-2,748,496 .

Préférentiellement, mais de manière non exclusive, un tel fil est obtenu par enduction en une ou deux couches, de l'âme avec un plastisol comprenant le matériau polymère chloré, par exemple du polychlorure de vinyle, et le plastifiant, puis par gélification du plastisol autour de l'âme.Preferably, but not exclusively, such a yarn is obtained by coating in one or two layers, the core with a plastisol comprising the chlorinated polymer material, for example polyvinyl chloride, and the plasticizer, then by gelling the plastisol around the soul.

Les tissus techniques obtenus avec de tels fils, et lorsqu'ils sont mis en oeuvre dans différents environnements, notamment pour l'aménagement tant intérieur qu'extérieur d'immeubles ou constructions, par exemple à titre de stores, sont soumis à des exigences de comportement au feu, définies par des réglementations et/ou procédures d'homologation ou autorisation, nationales ou internationales.The technical fabrics obtained with such yarns, and when they are used in different environments, in particular for interior and exterior furnishing of buildings or constructions, for example as blinds, are subject to the requirements of fire behavior, as defined by national and international regulations and / or approval procedures.

Ainsi, la réglementation applicable à de tels tissus en République Fédérale d'Allemagne définit différents classements, caractérisés notamment par la longueur de l'échantillon détruite par le feu, et par la température des fumées de combustion, et identifiés par les lettres B1 à B3, la lettre B1 caractérisant le meilleur comportement au feu accessible par un matériau comprenant des matières organiques.Thus, the regulations applicable to such fabrics in the Federal Republic of Germany define different classifications, characterized in particular by the length of the sample destroyed by the fire, and by the temperature of the combustion fumes, and identified by the letters B1 to B3. , the letter B1 characterizing the best fire performance accessible by a material comprising organic materials.

Et la réglementation applicable en France définit quant à elle, également différents classements selon les normes NF 1601 et NF P 92503, d'une part caractérisés notamment par l'émission de fumées et identifiés par les lettres F0 à F5, F3 étant le meilleur comportement accessible par un matériau contenant un polymère halogéné, et d'autre part caractérisés notamment par la température d'inflammation résiduelle du tissu, et identifiés par les lettres M0 à M4, la lettre M1 identifiant le meilleur comportement au feu généralement accessible par un matériau comprenant des matières organiques.And the regulations applicable in France define, as for it, also different classifications according to standards NF 1601 and NF P 92503, on the one hand characterized in particular by the emission of fumes and identified by the letters F0 to F5, F3 being the best behavior. accessible by a material containing a halogenated polymer, and further characterized in particular by the residual ignition temperature of the fabric, and identified by the letters M0 to M4, the letter M1 identifying the best fire behavior generally accessible by a material comprising organic materials.

Différentes tentatives ont été faites pour améliorer intrinsèquement le comportement au feu de ces fils composites, par exemple en utilisant des plastifiants particuliers, comme des phosphates organiques. Malheureusement, l'utilisation de tels plastifiants détériore les caractéristiques de mise en oeuvre (souplesse, pouvoir glissant, etc...) de ces fils, ce qui nuit à leur tissage postérieur, et rend ce dernier plus difficile. Par ailleurs, l'incorporation de tels plastifiants augmente l'indice de fumée.Various attempts have been made to intrinsically improve the fire behavior of these composite yarns, for example by using particular plasticizers, such as organic phosphates. Unfortunately, the use of such plasticisers deteriorates the implementation characteristics (flexibility, sliding power, etc ...) of these son, which affects their posterior weaving, and makes the latter more difficult. Moreover, the incorporation of such plasticizers increases the smoke index.

S'agissant des performances de la charge ignifugeante proprement dite, différents documents ont proposé divers composés ou diverses compositions, susceptibles d'améliorer le comportement au feu des matrices plastiques dans lesquelles la charge ignifugeante est incorporée, sans que l'application ou la mise en forme de la matière plastique ignifugée, par exemple sous forme de fil, soit précisée.As regards the performance of the flame retardant itself, various documents have proposed various compounds or various compositions that can improve the fire behavior of plastic matrices in which the fire-retardant filler is incorporated, without the application or implementation of shape of the flame retarded plastic material, for example in the form of wire, is specified.

Ainsi, selon le document JP-A-58185637 , pour une matrice à base de polychlorure de vinyle, on a proposé une charge ignifugeante comprenant un polyéthylène chloré, un composé choisi parmi notamment les oxydes et/ou hydroxydes d'antimoine, et d'aluminium, et préférentiellement un autre composé choisi parmi certains sels de zinc, dont le borate de zinc ; des produits à base d'étain par exemple le stannate de zinc.So, according to the document JP-A-58185637 for a matrix based on polyvinyl chloride, a flame retardant filler comprising a chlorinated polyethylene, a compound chosen from oxides and / or hydroxides of antimony, and aluminum, and preferably another compound chosen from certain zinc salts, including zinc borate; tin products for example zinc stannate.

Et conformément au document FR-A-2 448 554 , toujours pour une matrice à base de polychlorure de vinyle, incorporant par ailleurs un stabilisant, un plastifiant constitué par un ester phosphorique, et une charge d'hydroxyde d'alumine, on a proposé une charge ignifugeante comprenant un oxyde d'antimoine, éventuellement associé à un borate de zinc.And according to the document FR-A-2,448,554 , again for a matrix based on polyvinyl chloride, which also incorporates a stabilizer, a plasticizer consisting of a phosphoric ester, and a charge of alumina hydroxide, it has been proposed a flame retardant filler comprising an antimony oxide, optionally associated with a zinc borate.

Aucune des charges ignifugeantes précédemment proposées ne convient pour améliorer dans les proportions souhaitées le comportement au feu d'un fil composite tel que précédemment considéré, et ce sans dégrader ses autres propriétés, par exemple mécaniques.None of the flame retardant fillers previously proposed are suitable for improving the desired behavior in the desired proportions. fire of a composite wire as previously considered, and without degrading its other properties, for example mechanical.

Il n'est pas possible, non plus, d'augmenter de manière significative la proportion pondérale de la charge ignifugeante, sauf à détériorer comme précédemment les caractéristiques de mise en oeuvre du fil composite.It is also not possible to significantly increase the proportion by weight of the flame retardant filler, except to deteriorate as before the implementation characteristics of the composite yarn.

La présente invention a pour objet un fil composite enduit, présentant globalement et intrinsèquement un comportement au feu amélioré, en favorisant la dissipation de la chaleur et en permettant de réduire fortement le phénomène aléatoire de propagation de flamme mesuré par des tests au feu selon la norme NF P 92 503 sur tout tissu obtenu à partir du fil composite selon l'invention.The subject of the present invention is a coated composite yarn having generally and inherently improved fire behavior, by promoting the dissipation of heat and by greatly reducing the random phenomenon of flame spread measured by fire tests according to the standard NF P 92 503 on any fabric obtained from the composite yarn according to the invention.

Les propriétés de tenue en température sont améliorées en raison de la répartition régulière des fibres dans le matériau polymère d'enduction qui permet la dissipation de la chaleur, en effet lorsque les fibres sont regroupées elles constituent une voie de conduction préférentielle qui favorise la propagation de la chaleur.The properties of temperature resistance are improved because of the regular distribution of the fibers in the coating polymer material which allows the dissipation of heat, indeed when the fibers are grouped together they constitute a preferred conduction pathway which promotes the propagation of the heat.

La présente invention a pour objet un fil composite constitué d'un fil continu, obtenu par filature de fibres en un matériau organique ou inorganique ou de fibres naturelles comme le lin ou le coton, et d'un matériau polymère,
caractérisé en-ce que les fibres constitutives dudit fil continu sont réparties uniformément dans ledit matériau polymère de telle façon que chacune desdites fibres soit enrobée par ledit matériau polymère.The present invention relates to a composite yarn consisting of a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers such as linen or cotton, and a polymer material,
characterized in that the constituent fibers of said continuous wire are distributed uniformly in said polymeric material such that each of said fibers is coated by said polymeric material.

Ce fil composite est susceptible d'être utilisé seul ou comme âme pour la fabrication de fils composites obtenus par une seconde enduction avec un matériau polymère.This composite yarn can be used alone or as a core for the manufacture of composite yarns obtained by a second coating with a polymer material.

La présente invention a également pour objet un fil composite enduit susceptible d'être obtenu par un procédé d'enduction avec un matériau polymère, caractérisé en ce qu'il comprend une âme constituée par un fil composite tel que précédemment défini et en ce que le matériau polymère constitué autour de l'âme et le matériau polymère constitutif de l'âme sont de même nature.The present invention also relates to a coated composite yarn obtainable by a coating process with a polymer material, characterized in that it comprises a core constituted by a composite yarn as defined above and that the polymeric material formed around the core and the constituent polymeric material of the core are of the same nature.

En fonction des caractéristiques de comportement au feu demandées ce fil composite est susceptible d'être utilisé comme âme pour la fabrication de fils composites ignifugés obtenus par enduction avec des polymères comportant des charges ignifugeantes.Depending on the characteristics of fire behavior required this composite yarn is likely to be used as a core for the manufacture of flame retardant composite yarns obtained by coating with polymers having fire-retardant fillers.

On obtient ainsi des fils présentant globalement et intrinsèquement un comportement au feu amélioré en utilisant moins de charge ignifugeante.Thus, son generally and inherently has improved fire behavior using less flame retardant filler.

La présente invention a également pour objet un fil composite ignifugé enduit susceptible d'être obtenu par un procédé d'enduction avec un matériau polymère comprenant une charge ignifugeante, caractérisé en ce qu'il comprend une âme constituée par un fil composite tel que précédemment défini et en ce que le matériau polymère constitué autour de l'âme et le matériau polymère constitutif de l'âme sont de même nature.The present invention also relates to a coated flame retardant composite yarn obtainable by a coating process with a polymer material comprising a flame-retardant filler, characterized in that it comprises a core constituted by a composite yarn as defined above. and in that the polymeric material formed around the core and the constituent polymeric material of the core are of the same nature.

Selon l'invention, ladite enduction est susceptible d'être effectuée avec une préparation liquide de monomère ou de polymère, par exemple une préparation liquide de polymère est obtenue par fusion d'un polymère ou par dispersion, par exemple sous forme de plastisol, et par exemple une préparation liquide de monomère est constituée d'un monomère liquide qui polymérisera sous l'effet de la chaleur ou par irradiation, par exemple irradiation U.V..According to the invention, said coating can be carried out with a liquid monomer or polymer preparation, for example a liquid polymer preparation is obtained by melting a polymer or by dispersion, for example in the form of plastisol, and for example a liquid monomer preparation consists of a liquid monomer which will polymerize under the effect of heat or by irradiation, for example UV irradiation.

L'invention concerne également le procédé de fabrication d'un fil composite caractérisé en ce qu'on soumet un fil continu, obtenu par filature de fibres en un matériau organique ou inorganique ou de fibres naturelles, à un procédé d'ouverture mécanique du fil permettant la séparation desdites fibres, simultanément ou préalablement à son enduction par un matériau polymère.The invention also relates to the method of manufacturing a composite yarn characterized in that subject a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers, to a method of mechanical opening of the yarn allowing the separation of said fibers, simultaneously or prior to its coating with a polymer material.

Elle concerne en outre le procédé de fabrication d'un fil composite caractérisé en ce qu'on soumet un fil continu, obtenu par filature de fibres en un matériau organique ou inorganique ou de fibres naturelles, à un procédé d'ouverture mécanique du fil permettant la séparation desdites fibres, simultanément ou préalablement à une enduction primaire avec une préparation liquide de monomère ou de polymère à l'état liquide, et en ce qu'on soumet le fil composite obtenu à un seconde enduction avec une préparation liquide de monomère ou de polymère.It also relates to the method of manufacturing a composite yarn characterized in that subject a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers, to a method of mechanical opening of the yarn allowing separating said fibers, simultaneously or prior to a primary coating with a liquid monomer or polymer preparation in the liquid state, and in that the composite yarn obtained is subjected to a second coating with a liquid preparation of monomer or polymer.

De préférence le monomère ou polymère de la seconde enduction est de même nature que le monomère ou polymère de la première enduction.Preferably the monomer or polymer of the second coating is of the same kind as the monomer or polymer of the first coating.

Elle concerne en outre le procédé de fabrication d'un fil composite ignifugé caractérisé en ce qu'on soumet un fil continu, obtenu par filature de fibres en un matériau organique ou inorganique ou de fibres naturelles, à un procédé d'ouverture mécanique du fil permettant la séparation desdites fibres, simultanément ou préalablement à une enduction primaire avec une préparation liquide de monomère ou de polymère à l'état liquide ne comportant pas de charge ignifugeante, et en ce qu'on soumet le fil composite obtenu à un seconde enduction avec une préparation liquide de monomère ou de polymère à l'état liquide comportant une charge ignifugeante.It also relates to the method of manufacturing a fireproof composite yarn characterized in that subject a continuous yarn, obtained by spinning fibers of an organic or inorganic material or natural fibers, to a method of mechanical opening of the yarn allowing the separation of said fibers, simultaneously or prior to a primary coating with a liquid preparation of monomer or polymer in the liquid state not comprising no flame retardant filler, and in that the composite yarn obtained is subjected to a second coating with a liquid monomer or polymer preparation in the liquid state with a flame retardant filler.

Par ouverture mécanique on entend tout procédé permettant simultanément ou préalablement à l'enduction l'ouverture des fibres tels que le dérompage, par l'application d'un jet d'air, d'un jet d'eau, d'un traitement par ultra-sons, l'application d'une pression mécanique, par exemple un écrasement du fil ou tout procédé permettant d'écarter les fibres pour permettre la pénétration du matériau polymère à l'intérieur des fibres constitutives dudit fil.By mechanical opening is meant any process which simultaneously or before the coating allows the opening of the fibers such as the derating, by the application of an air jet, a jet of water, a treatment by ultrasounds, the application of a mechanical pressure, for example a crushing of the wire or any method for removing the fibers to allow penetration of the polymeric material within the constituent fibers of said wire.

Le fil selon l'invention ne présente aucun des phénomènes de dégainage et de nuançage observés avec les fils de l'art antérieur.The yarn according to the invention has none of the stripping and shading phenomena observed with the yarns of the prior art.

Ces résultats sont obtenus sans nuire aux caractéristiques de mise en oeuvre du même fil, requises pour le tissage, et ces caractéristiques sont mêmes améliorées. Ainsi les tissus obtenus par tissage de ces fils composites sont mieux protégés des intempéries, par suppression ou diminution des remontées capillaires, et plus faciles à découper par suppression des phénomènes de défibrillation à la coupe.These results are obtained without affecting the characteristics of use of the same yarn, required for weaving, and these characteristics are even improved. Thus, the fabrics obtained by weaving these composite yarns are better protected from the weather, by suppressing or reducing capillary rise, and easier to cut by eliminating the defibrillation phenomena when cut.

Par préparation liquide de monomères ou de polymères, on entend toute formulation liquide à base de monomères ou de polymères.By liquid preparation of monomers or polymers is meant any liquid formulation based on monomers or polymers.

Par formulation on entend tout mélange comportant au moins un produit par exemple dispersion, solution, mélange de monomères et/ou d'oligomères.By formulation is meant any mixture comprising at least one product for example dispersion, solution, mixture of monomers and / or oligomers.

Par dispersion de polymère on entend toute préparation de polymère à l'état divisé comprenant des additifs dans un liquide organique ou non.By polymer dispersion is meant any split-state polymer preparation comprising additives in an organic liquid or not.

Par « plastisol » on entend une dispersion de polymères, de charges et autres additifs, à l'état finement divisé, dans un plastifiant.By "plastisol" is meant a dispersion of polymers, fillers and other additives, in the finely divided state, in a plasticizer.

A titre de matériau polymère, on peut utiliser des polymères chlorés, des silicones, des polyuréthanes, des acryliques, des copolymères ethylène-vinyle acétate EVA, des terpolymères éthylène propylène diène monomère, EPDM.As the polymer material, it is possible to use chlorinated polymers, silicones, polyurethanes, acrylics, ethylene-vinyl acetate EVA copolymers, ethylene propylene diene monomer terpolymers, EPDM.

A titre de matériau polymère chloré, on peut utiliser conformément à l'invention, toute résine PVC susceptible d'être plastifiée, et notamment pouvant être de ce fait mise en oeuvre sous forme de plastisol.As a chlorinated polymer material, it is possible to use, in accordance with the invention, any PVC resin that can be plasticized, and in particular that can therefore be used in the form of plastisol.

Par matériau polymère chloré, on entend, ou un polymère chloré pur ou un copolymère de chlorure de vinyle copolymérisé avec d'autres monomères, ou encore un polymère chloré qui est allié avec d'autres polymères.By chlorinated polymer material is meant, or a pure chlorinated polymer or copolymer of vinyl chloride copolymerized with other monomers, or a chlorinated polymer that is alloyed with other polymers.

Parmi les monomères qui peuvent être copolymérisés avec le chlorure de vinyle, on citera notamment des oléfines comme par exemple l'éthylène, des esters vinyliques d'acides carboxyliques saturés, comme l'acétate de vinyle, le butyrate de vinyle ou les maléates; des dérivés vinyliques halogénés comme, par exemple, le chlorure de vinylidène, des esters d'acide acrylique ou méthacrylique comme l'acrylate de butyle.Among the monomers that can be copolymerized with vinyl chloride, mention may be made in particular of olefins such as, for example, ethylene, vinyl esters of saturated carboxylic acids, such as vinyl acetate, vinyl butyrate or maleates; halogenated vinyl derivatives such as, for example, vinylidene chloride, esters of acrylic or methacrylic acid such as butyl acrylate.

A titre de polymère chloré, on citera par exemple le polychlorure de vinyle mais aussi les PVC surchlorés, les polychlorures de vinylidène et les polyoléfines chlorées.Examples of chlorinated polymers that may be mentioned are polyvinyl chloride, but also chlorinated PVCs, polyvinylidene chlorides and chlorinated polyolefins.

De manière préférentielle, mais non exclusive, le matériau polymère chloré selon la présente invention a une teneur pondérale en halogène comprise entre 40 et 70 %.Preferably, but not exclusively, the chlorinated polymer material according to the present invention has a weight content of halogen of between 40 and 70%.

A titre de matériau polymère siliconé, on peut utiliser selon l'invention les organopolysiloxanes et plus particulièrement les résines et élastomères de polysiloxane avec ou sans diluant.As a silicone polymer material, it is possible to use according to the invention the organopolysiloxanes and more particularly the polysiloxane resins and elastomers with or without a diluent.

A titre de matériau polymère polyuréthane, on peut utiliser selon l'invention tout matériau constitué d'une chaîne hydrocarbonée comportant le motif uréthane ou -NHCOO-.As a polyurethane polymer material, it is possible to use according to the invention any material consisting of a hydrocarbon chain comprising the urethane or -NHCOO- unit.

S'agissant du fil continu il est lui-même constitué par un ou plusieurs filaments continus ou fibres. Sa nature chimique peut être organique, par exemple en polyester, polyamide, polyvinyl, acrylique, d'origine naturelle comme le lin ou le coton, ou inorganique, par exemple en verre ou silice, étant entendu que sa température de fusion doit être supérieure à celle de mise en oeuvre du matériau polymèreRegarding the continuous wire it is itself constituted by one or more continuous filaments or fibers. Its chemical nature may be organic, for example polyester, polyamide, polyvinyl, acrylic, of natural origin such as linen or cotton, or inorganic, for example glass or silica, it being understood that its melting point must be greater than that of implementation of the polymer material

La charge ignifugeante est choisie dans le groupe constitué par le borate de zinc, l'hydroxyde d'aluminium, le trioxyde d'antimoine et l'hydroxystannate de zinc, les composés de molybdène, les dérivés halogènes, les composés à halogènes actifs, les composés phosphorés et les systèmes intumescents.The flame retardant filler is selected from the group consisting of zinc borate, aluminum hydroxide, antimony trioxide and zinc hydroxystannate, molybdenum compounds, halogenated derivatives, active halogen compounds, phosphorus compounds and intumescent systems.

D'autres charges peuvent être incorporées et distribuées dans la préparation liquide de monomères ou de polymères, en plus de la charge ignifugeante, par exemple une charge pigmentaire, de la silice, du talc, des billes de verre et/ou une charge stabilisante. En pareil cas, la composition pondérale totale du fil composite, en matières inorganiques, se trouve évidemment modifiée ou affectée.Other fillers may be incorporated and dispensed in the liquid preparation of monomers or polymers, in addition to the flame retardant filler, for example a pigment filler, silica, talc, glass beads and / or a stabilizing filler. In this case, the composition total weight of the composite yarn, in inorganic materials, is obviously modified or affected.

Dans le cas de l'utilisation de plastisol, grâce à l'invention, il demeure possible de recourir à des plastifiants traditionnels, par exemple comprenant au moins un phtalate, et par conséquent de ne pas compromettre les propriétés de mise en oeuvre du fil, vis-à-vis de son tissage ultérieur.In the case of the use of plastisol, thanks to the invention, it remains possible to use traditional plasticizers, for example comprising at least one phthalate, and therefore not to compromise the properties of implementation of the wire, vis-à-vis its subsequent weaving.

L'invention permet aussi de limiter pondéralement la charge ignifugeante, dans des proportions n'excédant pas 50% de la matrice plastique. Au-delà on assiste à une altération des propriétés notamment mécaniques du fil composite.The invention also makes it possible to limit the fire-retardant load by weight, in proportions not exceeding 50% of the plastic matrix. Beyond this, there is an alteration of the mechanical properties of the composite yarn.

L'ensemble des caractéristiques techniques du fil sont améliorées. On notera plus particulièrement notamment la répartition homogène du matériau polymère constitué autour de l'âme, la résistance à la capillarité, l'homogénéité des coloris et l'accrochage de la gaine sur l'âme.All the technical characteristics of the wire are improved. Particularly noteworthy include the homogeneous distribution of the polymeric material formed around the core, the resistance to capillarity, the homogeneity of the colors and the attachment of the sheath on the core.

Dans le cas de l'utilisation de plastisol PVC, l'ajout d'agent d'accrochage du type isocyanate n'est pas nécessaire.

  • La figure 1 représente en coupe un fil composite ignifugé de l'art antérieur.
  • La figure 2 représente en coupe un fil composite ignifugé selon l'invention.
In the case of the use of PVC plastisol, the addition of isocyanate type coupling agent is not necessary.
  • Figure 1 shows in section a flame retarded composite wire of the prior art.
  • Figure 2 shows in section a fireproof composite wire according to the invention.

On observe la répartition homogène des fibres 1 dans la préparation de monomère ou de polymère 2 appliquée à l'état liquide et refroidie ou polymérisée après application. L'enduction secondaire 3 est également régulièrement répartie dans le fil composite selon l'invention.The homogeneous distribution of the fibers 1 in the preparation of monomer or polymer 2 applied in the liquid state and cooled or polymerized after application is observed. The secondary coating 3 is also regularly distributed in the composite yarn according to the invention.

Le tableau comparatif suivant permet d'illustrer l'ensemble de ces caractéristiques, en comparaison avec un fil enduit de manière conventionnelle, dans le cas particulier de l'utilisation d'un matériau polymère chloré, le PVC. Enduction standard Enduction selon l'invention Fil Torsion > 40 tours Possibilité d'utiliser des torsions < 40 tours 1ère enduction Plastisol de PVC ignifugé 1500 mPa.s = 100 Plastisol 350 mPa.s - résine PVC = 100pcr - résine PVC = 100 pcr - taux de charge (ignifugeants) = 15 à 25 pcr - taux de charge = 0 - taux de plastifiant =30 à 50 pcr - taux de plastifiant =60 à 70 pcr - additifs stabilisants 2-10 pcr - additifs stabilisants 2-10 pcr diamètre du fil : 0,3 mm Taux d'emport = 65 à 90 % 2ème enduction Plastisol de PVC ignifugé identique à la première enduction Plastisol de PVC ignifugé 1500 mPa.s Taux d'emport = 30 à 50 % - résine PVC = 100 pcr - taux de charge (ignifugeants) = 15-25 pcr - taux de plastifiant =30-50 pcr - additifs stabilisants 2-10 pcr Propriétés du ILO = 30,7 % ILO = 30% fil enduit - léger nuançage - pas de nuançage - léger dégainage - pas de dégainage - taux ignifugeant = 8 à 15 % - taux d'ignifugeant réduit d'environ 60% - taux d'ignifugeant = 10% - pas d'effet cheminée 1ère couche : + 45 % PVC 1ère couche : + 41 % PVC 2ème couche : + 24 % PVC 2ème couche : + 30 % PVC - M1 B1 - M1 conservé et plus homogène Propriétés du - Légèrement nuancé - B1 tissu Quelques dégainages (ruptures de gaines lors de sollicitations mécaniques) Permanences des propriétés mécaniques sous contraintes (non destruction du fil de verre) - Pas de nuançage - Pas de dégainage - Pas de défibrillation - anticapillarité The following comparative table makes it possible to illustrate all of these characteristics, in comparison with a conventionally coated yarn, in the particular case of the use of a chlorinated polymer material, PVC. Standard coating Coating according to the invention wire Twist> 40 turns Ability to use twists <40 rounds 1 st coating Flame retardant PVC plastisol 1500 mPa.s = 100 Plastisol 350 mPa.s - PVC resin = 100pcr - PVC resin = 100 phr - charge rate (flame retardants) = 15 to 25 phr - charge rate = 0 - plasticizer rate = 30 to 50 phr - plasticizer rate = 60 to 70 phr stabilizing additives 2-10 pcr stabilizing additives 2-10 pcr wire diameter: 0.3 mm Carrying rate = 65 to 90% 2nd coating PVC plastisol fireproof identical to the first coating Flame retardant PVC plastisol 1500 mPa.s Carrying rate = 30 to 50% - PVC resin = 100 phr - charge rate (flame retardants) = 15-25 pcr - plasticizer rate = 30-50 phr stabilizing additives 2-10 pcr Properties of ILO = 30.7% ILO = 30% coated wire - slight shading - no shading - light stripping - no stripping - flame retardant rate = 8 to 15% - flame retardant rate reduced by about 60% - flame retardant rate = 10% - no chimney effect 1st layer: 45% PVC 1st layer: 41% PVC 2nd layer: + 24% PVC 2nd layer: + 30% PVC - M1 B1 - M1 conserved and more homogeneous Properties of - Slightly nuanced - B1 tissue Some stripping (breaks of sheaths during mechanical stresses) Permanence of the mechanical properties under constraints (non destruction of the glass thread) - No shading - No stripping - No defibrillation - anticapillarity

Le taux d'emport est le taux d'imprégnation du fil il est défini par la formule suivante : poids du fil enduit - poids du fil poids du fil enduit × 100

Figure imgb0001
The rate of carriage is the rate of impregnation of the wire is defined by the following formula: weight of coated wire - wire weight weight of coated wire × 100
Figure imgb0001

ILO représente l'Indice Limite d'Oxygène, il est déterminé selon la norme NF G 07128.ILO represents the Limit Oxygen Index, it is determined according to standard NF G 07128.

Pour la préparation de formulations selon l'invention, à base de polymère chloré comme le PVC, à titre d'exemple les ingrédients suivants ont été utilisés :

  • Résines:
    1. a. résine de PVC
      • Vinnolit P4472, Vinnolit P70, Vinnolit P70 PS (VINNOLIT), SELIN 372 No (SELVAN)
    2. b. résine filler
      • Lacovyl B 1050 (ATOFINA), Vinnolit C65V (VINNOLIT), Vinnolit C66(VINNOLIT), C66W.
  • PlastifiantS:
    • DINP (Jayflex DINP, Palatinol N (BASF), Vestinol 9 (OXENO)),
    • TXIB (Eastman TXIB), DIDP (Jayflex DIDP (EXXON), Palatinol Z (BASF)), BBP (Santicizer 206) (FERRO)
  • Stabilisants :
    • a. Stabilisant thermique
      • à base de Pb (Baerostab V 220) (BAERLOCHER)
      • à base de Sels organique de Baryum Zinc (Lastab DC 261 GL (LAGOR), Mark BZ 561(WITCO)) - - -
      • à base de Thio Etain (Baerostab M62 A(BAERLOCHER))
    • b. Stabilisant UV
      • Benzotriazole ou benzophénone (Tinuvin 320, Tinuvin 571, Tinuvin P (WITCO))
  • Charges :
    • Charges opacifiantes : Sulfure de zinc, ZnS (sachtolit L (SACHTLEBEN)), Dioxyde de Titane (KRONOS)
  • Ignifugeants :
    • Borate de Zinc (Firebreak ZB (USBORAX))
    • Hydroxyde d'aluminium (Alumine SH 5) (OMYA)
    • Troxyde d'antimoine (Oxyde d'antimoine / Timonox) (SICA, CAMPINE, PLC)
    • Hydroxystannate de Zinc (StormFlam ZHS (JOSEPH STOREY)
  • Additifs :
    • Modificateurs de viscosité / agents rhéologiques : Viscobyk-4013, CAB-O-SIL, Exxsol D80 (BYK-CHEMIE, CABOT,EXXON)
    • Agents mouillants : disperplast-1142 (BYK-CHEMIE).
For the preparation of formulations according to the invention, based on chlorinated polymer such as PVC, by way of example, the following ingredients have been used:
  • resins:
    1. at. PVC resin
      • Vinnolit P4472, Vinnolit P70, Vinnolit P70 PS (VINNOLIT), SELIN 372 No (SELVAN)
    2. b. resin filler
      • Lacovyl B 1050 (ATOFINA), Vinnolit C65V (VINNOLIT), Vinnolit C66 (VINNOLIT), C66W.
  • plasticizers:
    • DINP (Jayflex DINP, Palatinol N (BASF), Vestinol 9 (OXENO)),
    • TXIB (Eastman TXIB), DIDP (Jayflex DIDP (EXXON), Palatinol Z (BASF)), BBP (Santicizer 206) (FERRO)
  • Stabilizers:
    • at. Thermal stabilizer
      • based on Pb (Baerostab V 220) (BAERLOCHER)
      • based on Organic Salts of Barium Zinc (Lastab DC 261 GL (LAGOR), Mark BZ 561 (WITCO)) - - -
      • based on Thio Etain (Baerostab M62 A (BAERLOCHER))
    • b. UV stabilizer
      • Benzotriazole or benzophenone (Tinuvin 320, Tinuvin 571, Tinuvin P (WITCO))
  • Charges:
    • Opacifying fillers: Zinc Sulfide, ZnS (Sachtolit L (SACHTLEBEN)), Titanium Dioxide (KRONOS)
  • Fireproof:
    • Zinc Borate (Firebreak ZB (USBORAX))
    • Aluminum hydroxide (Alumina SH 5) (OMYA)
    • Antimony Trooxide (Antimony Oxide / Timonox) (SICA, CAMPINE, PLC)
    • Zinc Hydroxystannate (StormFlam ZHS (JOSEPH STOREY)
  • Additives:
    • Viscosity Modifiers / Rheological Agents: Viscobyk-4013, CAB-O-SIL, Exxsol D80 (BYK-CHEMIE, CABOT, EXXON)
    • Wetting agents: disperplast-1142 (BYK-CHEMIE).

Le verre favorisant la dissipation de la chaleur, le phénomène de la propagation de flamme rencontré lors de tests au feu selon la norme NF 92503 sur tissu, est avec un tissu obtenu par tissage d'un fil ignifugé selon l'invention, fortement réduit car le matériau polymère est mieux réparti au coeur des fibres et la chaleur emmagasinée est alors mieux dissipée par les fibres.Glass favoring the dissipation of heat, the phenomenon of the flame propagation encountered during fire tests according to the NF 92503 standard on fabric, is with a fabric obtained by weaving a flame-retardant yarn according to the invention, which is greatly reduced because the polymer material is better distributed in the core of the fibers and the stored heat is then better dissipated by the fibers.

Cette optimisation de la dissipation permet globalement d'abaisser le taux de charges ignifugeantes dans Le fil composite ignifugé enduit.This optimization of the dissipation overall makes it possible to lower the rate of fire-retardant fillers in the coated fire-resistant composite wire.

Les exemples suivants permettent d'illustrer l'invention dans le cas particulier de l'utilisation d'un matériau polymère à base de silicone.The following examples illustrate the invention in the particular case of the use of a silicone polymer material.

Par enduction selon le procédé de l'invention d'un fil minéral/fibre de verre continue/silionne, c'est à dire en soumettant le fil à une ouverture mécanique par dérompage simultanément ou préalablement à l'enduction par une préparation liquide de polymère à base de polymère siliconé on obtient un fil composite ignifugé enduit selon l'invention sans halogéne.By coating according to the process of the invention a mineral / continuous fiberglass / silionne wire, that is to say by subjecting the wire to a mechanical opening by knockout simultaneously or prior to coating with a liquid polymer preparation based on silicone polymer is obtained a fireproof composite wire coated according to the invention without halogen.

La formulation d'enduction est définie par une viscosité comprise entre 500 et 10 000 mPa.s et de préférence entre 1000 et 5000 mPa.s, mesurée à 25°C avec un viscosimètre Brookfield RVT à 20tr/min, broche 4.The coating formulation is defined by a viscosity of between 500 and 10,000 mPa.s and preferably between 1000 and 5000 mPa.s, measured at 25 ° C. with a Brookfield RVT viscometer at 20 rpm, spindle 4.

L'enduction est effectuée avec une formulation comportant les produits suivants : Silicone     100 pcr Solvant/eau     0 à 50 pcr Charges(pigment, ignifugeant..) 0 à 20 pcr Réticulant     2 à 6 pcr Additifs     0 à 5 pcr Additifs     0 à 5 pcr The coating is carried out with a formulation comprising the following products: Silicone 100 pcr Solvent / water 0 to 50 pcr Charges (pigment, flame retardant ..) 0 to 20 pcr crosslinking 2 to 6 pcr additives 0 to 5 pcr additives 0 to 5 pcr

Les silicones utilisés sont par exemple :

  • Elastosil RD6635, RD 3151 ou 45539 WP (WACKER), Rhodosil RTV 1519 (RHODIA), Dow FC227TS (DOW CORNING), 9050/30P de DOW CORNING, 6600 F de WACKER, SILASTIC LPX de DOW CORNING, Silicolease UV Poly 200 et UV cata 211 de RHODIA.
The silicones used are, for example:
  • Elastosil RD6635, RD 3151 or 45539 WP (WACKER), Rhodosil RTV 1519 (RHODIA), Dow FC227TS (Dow Corning), 9050 / 30P from Dow Corning, 6600 F from Wacker, SILASTIC LPX from Dow Corning, Silicolease UV Poly 200 and UV cata 211 of RHODIA.

Les diluants sont choisis parmi le toluène, le xylène, le white spirit ou l'eau.The diluents are selected from toluene, xylene, white spirit or water.

Les charges sont constituées par exemple de borate de zinc Firebreak ZB, d'hydroxyde d'aluminium (OMYA), d'alumine SH5n de promoteur comm Elastosil 45568 VP ou HF86 (WACKER), de retardateur HTV-SB WACKER), d'hydrofugeant WS60E (WACKER) ou de billes de verre (SOVITEC), de pâte pigmentaire RAL de chez WACKER.The fillers consist, for example, of Firebreak ZB zinc borate, aluminum hydroxide (OMYA), SH5n promoter alumina Elastosil 45568 VP or HF86 (WACKER), retarder HTV-SB WACKER), water repellent WS60E (WACKER) or glass beads (SOVITEC), RAL pigment paste from WACKER.

Les formulations suivantes ont été effectuées et des fils composites selon l'invention obtenus par enduction.The following formulations were made and composite son according to the invention obtained by coating.

Exemple 1 :Example 1

Première enduction Taux d'emport 30% 9050/30P de DOW CORNING (viscosité 3 000 cPo)First coating DOW CORNING 30% 9050 / 30P transport rate (viscosity 3000 cPo) 100 pcr100 pcr Deuxième enduction Taux d'emport 30 % 9050/30 PSecond coating 30% carry rate 9050/30 P 100 pcr100 pcr Silastic (DOW CORNING)Silastic (DOW CORNING) 2pcr2pcr

Exemple 2 :Example 2

Première enduction Taux d'emport 15% 9050/30P de DOW CORNING Deuxième enduction Taux d'emport 15 % RD3151 (WACKER)First coating DOW CORNING 15% 9050 / 30P load rate Second coating 15% RD3151 (WACKER) 100 pcr100 pcr HTV-SB batch 2 (WACKER)HTV-SB batch 2 (WACKER) 0,5 pcr0.5 pcr Borate de ZNFirebreakBorate of ZNFirebreak 5 pcr5 pcr Pâte pigmentaire RAL (WACKER)Pigment paste RAL (WACKER) 2 pcr2 pcr Réticulant Elastosil W (WACKER)Reticant Elastosil W (WACKER) 3 pcr3 pcr

Exemple 3 :Example 3

Une seule enduction Taux d'emport 18 % 6600 F (WACKER)Single coating 18% 6600 F (WACKER) 100 pcr100 pcr HTV-SB batch 2 (WACKER)HTV-SB batch 2 (WACKER) 1 pcr1 pcr ATH (ALCAN)ATH (ALCAN) 20 pcr20 pcr Réticulant Elastosil W (WACKER)Reticant Elastosil W (WACKER) 5 pcr5 pcr ToluèneToluene 20 pcr20 pcr

Exemple 4 :Example 4

Les silicones utilisés sont réticulables aux UV.The silicones used are crosslinkable to UV. Première enductionFirst coating Silicolease UV Poly 200 (RHODIA).Silicolease UV Poly 200 (RHODIA). 100 parts100 shares Silicolease UV Cata 211 (RHODIA)Silicolease UV Cata 211 (RHODIA) 2 à 5 parts2 to 5 parts Deuxième enductionSecond coating Silicolease UV Poly 200 (RHODIA).Silicolease UV Poly 200 (RHODIA). 100 parts100 shares Silicolease UV Cata 211 (RHODIA)Silicolease UV Cata 211 (RHODIA) 2 à 5 parts2 to 5 parts Charges ignifugeantesFire-retardant loads PigmentPigment

Les tissus obtenus avec un fil composite selon l'invention n'ont pas besoin d'un traitement postérieur pour améliorer leur comportement au feu.Fabrics obtained with a composite yarn according to the invention do not need a posterior treatment to improve their fire behavior.

Un fil composite selon l'invention ne présente aucune défibrillation à la coupe, il est plus hydrophobe, son toucher est plus "soft", et les textiles obtenus par tissage sont antisalissures.A composite yarn according to the invention has no defibrillation at the cut, it is more hydrophobic, its feel is more "soft", and textiles obtained by weaving are antifouling.

Un fil composite selon la présente invention peut être intégré dans toutes structures textiles, ou assemblé-selon toutes structures textiles requises, bidimensionnelles (nappes, tissus, etc...) ou tridimensionnelles (tresses par exemple).A composite yarn according to the present invention can be integrated in all textile structures, or assembled in any textile structures required, two-dimensional (webs, fabrics, etc.) or three-dimensional (braids for example).

Le fil composite peut tout d'abord être coupé et divisé en fils élémentaires, pouvant être entremêlés et fixés les uns aux autres, sous forme de structures textiles non tissées, mats par exemple. La fixation des fils élémentaires entremêlés peut être obtenue par imprégnation avec une substance adhésive appropriée, ou encore par thermo-fusion du matériau polymère de la gaine.The composite yarn can first be cut and divided into elementary yarns, which can be interwoven and fixed to one another in the form of non-woven textile structures, eg mats. Fixing the elementary son intermingled may be obtained by impregnation with a suitable adhesive substance, or by thermo-fusion of the polymer material of the sheath.

Le fil composite peut ensuite être assemblé sur lui-même, dans toutes structures textiles tricotées appropriées mais il peut être assemblé avec d'autres fils, selon la présente invention ou non, pour constituer différentes structures bidimensionnelles ou tridimensionnelles; dans ce dernier cas, il peut s'agir de grilles dans lesquelles les fils selon la présente invention sont entrecroisés et fixés avec d'autres fils, selon la présente invention ou non, et de tissus, dans lesquels les fils composites selon l'invention sont tissés avec d'autres fils de chaîne et/ou trame, également selon l'invention ou non.The composite yarn can then be assembled on itself, in any suitable knitted textile structures but it can be assembled with other yarns, according to the present invention or not, to constitute different two-dimensional or three-dimensional structures; in the latter case, they may be grids in which the yarns according to the present invention are crisscrossed and fixed with other yarns, according to the present invention or not, and of fabrics, in which the composite yarns according to the invention are woven with other warp and / or weft yarns, also according to the invention or not.

Une application toute particulière de la présente invention concerne l'obtention de tissus techniques, destinés à la réalisation ou fabrication de stores ou rideaux tant intérieurs qu'extérieurs.A very particular application of the present invention relates to obtaining technical fabrics for the production or manufacture of blinds or curtains both inside and outside.

Après essais au feu, tous ces tissus ont montré qu'ils satisfaisaient, et à la réglementation allemande avec le classement B1, et à la réglementation française avec le classement M1 et F3.After fire tests, all these fabrics showed that they satisfied, and the German regulations with the classification B1, and the French regulations with the classification M1 and F3.

Claims (14)

  1. Composite yarn consisting of a continuous yarn, obtained by spinning fibres made of an organic or inorganic material or natural fibres (1), and of a polymer material (2), characterized in that the constituent fibres of said continuous yarn are uniformly distributed within said polymer material (2) in such a way that each of said fibres (1) is coated by said polymer material.
  2. Composite yarn that can be obtained by a process for coating with a liquid monomer or polymer preparation (3) comprising a polymer material, characterized in that it comprises a core consisting of a composite yarn according to Claim 1, and in that the material (3) formed around the core and the constituent polymer material (2) of the core are of the same nature.
  3. Fire-retarded composite yarn that can be obtained by a process for coating with a liquid monomer or polymer preparation (3) comprising a polymer material and a fire-retarding filler, characterized in that it comprises a core consisting of a composite yarn according to Claim 1 and in that the material (3) formed around the core and the constituent polymer material (2) of the core are of the same nature.
  4. Composite yarn according to any one of Claims 1 to 3, characterized in that the inorganic or organic material constituting the fibres of the yarn is chosen from the group consisting of polyester, glass or silica.
  5. Composite yarn according to any one of Claims 1 to 3, characterized in that the polymer material is chosen from chlorinated polymers.
  6. Composite yarn according to Claim 5, characterized in that the chlorinated polymer material is chosen from the group consisting of polyvinyl chloride, superchlorinated PVCs, polyvinylidene chlorides and chlorinated polyolefins.
  7. Composite yarn according to any one of Claims 1 to 3, characterized in that the polymer material is chosen from organopolysiloxanes.
  8. Composite yarn according to any one of Claims 1 to 3, characterized in that the polymer material is chosen from polyurethanes.
  9. Composite yarn according to Claim 3, characterized in that the fire-retarding filler is chosen from the group consisting of zinc borate, aluminum hydroxide, antimony trioxide and zinc hydroxystannate.
  10. Process for manufacturing a composite yarn, characterized in that a continuous yarn, obtained by spinning fibres made of an organic or inorganic material, is subjected to a process for mechanically opening the yarn that allows said fibres to be separated, simultaneously with or prior to its coating by a polymer material.
  11. Process for manufacturing a composite yarn according to Claim 10, characterized in that the composite yarn obtained is subjected to a second coating with a liquid monomer or polymer preparation.
  12. Process for manufacturing a fire-retarded composite yarn according to Claim 10, characterized in that the yarn is subjected to a primary coating with a liquid monomer or polymer preparation that does not contain a fire-retarding filler, and in that the composite yarn obtained is subjected to a second coating with a liquid monomer or polymer preparation containing a fire-retarding filler.
  13. Process according to either of Claims 11 and 12, characterized in that the monomer or polymer of the second coating is of the same nature as the monomer or polymer of the first coating.
  14. Textile structure, for example a fabric, characterized in that it can be obtained from at least one composite yarn according to any one of Claims 1 to 10.
EP02799125A 2001-12-28 2002-12-27 Composite yarn, method for obtaining same and resulting textile structure Expired - Lifetime EP1458910B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0117047A FR2834302B1 (en) 2001-12-28 2001-12-28 COMPOSITE WIRE, PROCESS FOR OBTAINING AND TEXTILE STRUCTURE OBTAINED
FR0117047 2001-12-28
PCT/FR2002/004577 WO2003056082A2 (en) 2001-12-28 2002-12-27 Composite yarn, method for obtaining same and resulting textile structure

Publications (2)

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EP1458910A2 EP1458910A2 (en) 2004-09-22
EP1458910B1 true EP1458910B1 (en) 2007-08-08

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US (1) US20050042447A1 (en)
EP (1) EP1458910B1 (en)
JP (1) JP4272530B2 (en)
KR (1) KR100903989B1 (en)
CN (1) CN1608153B (en)
AT (1) ATE369448T1 (en)
AU (1) AU2002364347B2 (en)
BR (1) BR0215350B1 (en)
CA (1) CA2470453A1 (en)
DE (1) DE60221707T2 (en)
DK (1) DK1458910T3 (en)
ES (1) ES2291533T3 (en)
FR (1) FR2834302B1 (en)
HK (1) HK1072280A1 (en)
WO (1) WO2003056082A2 (en)

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US9045845B2 (en) * 2001-12-28 2015-06-02 Chavanoz Industrie Composite yarn, method for obtaining same and resulting textile structure
FR2862664B1 (en) * 2003-11-25 2006-03-17 Chavanoz Ind COMPOSITE WIRE COMPRISING A CONTINUOUS WIRE AND A MATRIX COMPRISING A FOAM POLYMER
JP4835074B2 (en) * 2005-09-05 2011-12-14 日東紡績株式会社 Resin-coated glass fiber woven fabric, resin-coated glass fiber bundle, and production method thereof
FR2939152B1 (en) 2008-12-01 2011-05-06 Porcher Ind PHOTOLUMINESCENT COMPOSITE FIL, PROCESS FOR OBTAINING AND TEXTILE STRUCTURE OBTAINED
JP5432019B2 (en) * 2010-03-25 2014-03-05 宇部エクシモ株式会社 Flame-retardant net-like material, method for producing uncured linear material for mesh yarn, and method for producing flame-retardant FRP net body
US20120142241A1 (en) * 2010-07-08 2012-06-07 Springs Creative Products Group, Llc Coated fire barriers made from corespun yarns - coated fibers comprising the sheath of the corespun yarns
KR101513780B1 (en) * 2012-05-21 2015-04-22 (주)엘지하우시스 Yarn for preventing nap and woven decorative flooring using the same
ES2685570T3 (en) * 2014-04-22 2018-10-10 Mermet New manufacturing procedure for flame retardant threads
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WO2019202151A1 (en) 2018-04-20 2019-10-24 Mermet Composite yarn, manufacturing process and textile surface comprising such a yarn
GB2579362B (en) * 2018-11-28 2023-04-05 Louver Lite Ltd Coating composition
CN113957578B (en) * 2020-07-21 2023-05-09 上海赛立特安全用品股份有限公司 Inorganic nonmetallic fiber reinforced monofilament, coated wire, preparation method and application thereof

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Also Published As

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CN1608153B (en) 2010-08-18
DE60221707D1 (en) 2007-09-20
ATE369448T1 (en) 2007-08-15
FR2834302B1 (en) 2005-05-06
BR0215350A (en) 2004-12-14
AU2002364347A1 (en) 2003-07-15
DE60221707T2 (en) 2008-05-15
KR20040071760A (en) 2004-08-12
CA2470453A1 (en) 2003-07-10
EP1458910A2 (en) 2004-09-22
WO2003056082A2 (en) 2003-07-10
AU2002364347B2 (en) 2008-01-31
KR100903989B1 (en) 2009-06-25
WO2003056082A3 (en) 2004-01-22
ES2291533T3 (en) 2008-03-01
FR2834302A1 (en) 2003-07-04
CN1608153A (en) 2005-04-20
DK1458910T3 (en) 2008-01-02
BR0215350B1 (en) 2014-11-18
US20050042447A1 (en) 2005-02-24
HK1072280A1 (en) 2005-08-19
JP4272530B2 (en) 2009-06-03
JP2005513299A (en) 2005-05-12

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