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EP0718425B1 - Fils à coudre constitués de deux composants entremêlés à base de filaments d'aramide, procédé pour leur production et leur utilisation - Google Patents

Fils à coudre constitués de deux composants entremêlés à base de filaments d'aramide, procédé pour leur production et leur utilisation Download PDF

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Publication number
EP0718425B1
EP0718425B1 EP95118506A EP95118506A EP0718425B1 EP 0718425 B1 EP0718425 B1 EP 0718425B1 EP 95118506 A EP95118506 A EP 95118506A EP 95118506 A EP95118506 A EP 95118506A EP 0718425 B1 EP0718425 B1 EP 0718425B1
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EP
European Patent Office
Prior art keywords
phenylene
structural repeat
mol
formula
yarn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP95118506A
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German (de)
English (en)
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EP0718425A1 (fr
Inventor
Wilbert Dr. Kemper
Richard Dr. Neuert
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Hoechst Trevira GmbH and Co KG
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Hoechst Trevira GmbH and Co KG
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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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/46—Sewing-cottons or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/80—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyamides
    • D01F6/805—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyamides from aromatic copolyamides
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/165—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam characterised by the use of certain filaments or yarns
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/903—Sewing threads
    • 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
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • 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
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y10T428/2924—Composite
    • 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
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y10T428/2969—Polyamide, polyimide or polyester
    • 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
    • Y10T428/2973—Particular cross section
    • Y10T428/2976—Longitudinally varying

Definitions

  • the present invention relates to new two-component loop yarns adapted processes for their manufacture and the use of these yarns as sewing and embroidery threads.
  • Loop yarns that can be used in particular as sewing threads, e.g. in the EP-A-295,601, EP-A-367,938 and EP-A-363,798. In these Fonts are mainly based on loop yarns Described polyester yarns. The use of other polymers is true addressed, but is not detailed.
  • Aromatic polyamides are known to be raw materials of high thermal and chemical stability as well as low flammability. Furthermore fibers made from such raw materials show very good mechanical properties, such as high strength and high initial modulus (modulus of elasticity).
  • Aromatic copolyamides have also become known, one have good solubility in the known amide solvents, which are also good can be spun and their filaments after stretching through high Mark strength values and initial moduli. Examples of such aromatic copolyamides are described in DE-PS-2,556,883, DE-A-3,007,063, EP-A-199,090, EP-A-364,891, EP-A-364,892, EP-A-364,893 and EP-A-424,860.
  • a loop yarn is provided that at the well-known good mechanical properties of aramids come.
  • loop textured yarns are available through blast texturing processes can be produced, which is characterized by a particularly good sewing behavior and distinguish good seam formation.
  • the two-component loop yarns according to the invention can be used excellently as sewing and embroidery threads.
  • Soluble aromatic polyamide is within the scope of this invention aromatic polyamide to understand that at 25 ° C a solubility in N-methylpyrrolidone of at least 50 g / l.
  • the polar aprotic organic solvent preferably contains at least an amide type solvent such as e.g. N-methyl-2-pyrrolidone, N, N-dimethylacetamide, tetramethyl urea, N-methyl-2-piperidone, N, N'-dimethylethylene urea, N, N, N ', N'-tetramethyl maleic acid amide, N-methylcaprolactam, N-acetylpyrrolidine, N, N-diethylacetamide, N-ethyl-2-pyrrolidone, N, N'-dimethylpropionic acid amide, N, N-dimethylisobutylamide, N-methylformamide, N, N'-dimethylpropyleneurea.
  • the preferred organic ones for the process according to the invention are Solvent N-methyl-2-pyrrolidone, N, N-dimethylacetamide and a mixture of these connections.
  • Any residues mean divalent aromatic residues whose Valence bonds are in para- or comparable coaxial or parallel Position to each other, so it is single or multi-core aromatic hydrocarbon radicals or heterocyclic-aromatic radicals, which can be single or multi-core.
  • heterocyclic aromatic Residues have in particular one or two oxygen, nitrogen or Sulfur atoms in the aromatic nucleus.
  • Polynuclear aromatic radicals can be condensed with one another or via C-C bonds or linearly connected to one another via -CO-NH groups.
  • valence bonds that are in coaxial or parallel to each other Stand are directed in opposite directions.
  • An example of coaxial, oppositely directed bonds are the biphenyl-4,4'-ene bonds.
  • a Examples of parallel, oppositely directed bonds are the naphthalene-1,5- or -2,6 bonds, while the naphthalene-1,8 bonds are parallel are rectified.
  • Examples of preferred divalent aromatic radicals, their valence bonds in a para- or comparable coaxial or parallel position to each other are mononuclear aromatic residues with para to each other free valences, especially 1,4-phenylene or dinuclear fused aromatic residues with parallel, oppositely directed bonds, in particular 1,4-, 1,5- and 2,6-naphthylene, or dinuclear via a C-C Binding linked aromatic residues with coaxial, opposite directed bonds, especially 4,4'-biphenyls.
  • Any residues mean divalent aromatic residues whose Valence bonds are in meta or comparable angled positions to each other, it is single or multi-core aromatic hydrocarbon radicals or heterocyclic-aromatic radicals, which can be single or multi-core.
  • heterocyclic aromatic Residues have in particular one or two oxygen, nitrogen or Sulfur atoms in the aromatic nucleus.
  • Polynuclear aromatic radicals can be condensed with one another or connected to one another via CC bonds or via bridging groups, such as, for example, -O-, -CH 2 -, -S-, -CO- or -SO 2 -.
  • Lower proportions, for example up to 5 mol% of the monomer units, based on the polymer, can be aliphatic or cycloaliphatic in nature be, for example alkylene or cycloalkylene units.
  • Alkylene radicals include branched and in particular straight-chain alkylene understand, for example alkylene with two to four carbon atoms, especially ethylene.
  • Cycloalkylene radicals include, for example, radicals with five to eight To understand carbon atoms, especially cycloalkylene.
  • substituents are alkyl, alkoxy or halogen.
  • Alkyl radicals include branched and in particular straight-chain alkyl understand, for example alkyl with one to six carbon atoms, especially methyl.
  • Alkoxy radicals include branched and in particular straight-chain alkoxy understand, for example alkoxy with one to six carbon atoms, especially methoxy.
  • radicals are halogen, these are, for example fluorine, bromine or especially chlorine.
  • Containing the dicarboxylic acid unit in the aromatic polyamides recurring structural units of the formulas I and II are preferably used Terephthalic acid units.
  • Examples of preferred diamine combinations that prefer this Aramids to be used containing the recurring structural units of the Formulas III and IV or of the formulas III and VI or of the formulas III, IV and V or of the formulas III, IV and VI or of the formulas IV, V and VI are based 1,4-phenylenediamine and 3,4'-diaminodiphenyl ether; 1,4-phenylenediamine, 4,4'-diaminodiphenylmethane and 3,3'-dichloro-, 3,3'-dimethyl- or 3,3'-dimethoxybenzidine; and 1,4-phenylenediamine, 1,4-bis (aminophenoxy) benzene and 3,3'-dichloro-, 3,3'-dimethyl or 3,3'-dimethoxybenzidine; such as 1,4-phenylenediamine, 3,4'-diaminodiphenyl ether and 3,3'-dichloro-, 3,3'-di
  • Aramides which are derived from such diamine combinations and which are preferably used according to the present invention are partly in EP-A-199,090, EP-A-364,891, EP-A-364,892, EP-A-364,893 and EP-A-424,860.
  • Two-component loop yarns with a yarn count of 100 to 1000 dtex, in particular from 200 to 800 dtex.
  • the two-component loop yarn according to the invention settles from standing and effect filaments together.
  • the upright filaments are aligned to a much greater extent in the direction of the fiber axis than that Effect filaments which are interwoven and intertwined with the upright filaments, but additionally due to their longer length from the filament bandage protruding loops and thus the textile properties and the Performance characteristics, such as sewing behavior, the co-determine yarns according to the invention substantially.
  • Stand and effect filaments generally differ in terms of their Single titer. This can be 0.5 to 8 dtex for the upright filaments. For the Effect filaments can be 0.2 to 4.5 dtex.
  • the loop yarn according to the invention usually has one Tenacity of more than 50 cN / tex, preferably more than 70 cN / tex, on. Under the tenacity, the quotient of maximum tensile strength and End titer understood at the moment of maximum tensile force.
  • the loop yarn according to the invention preferably has one Maximum tensile force elongation of less than 5%, especially less than 4%.
  • the maximum tensile elongation is the elongation that the yarn is exposed to Experienced maximum traction.
  • Two-component loop yarns are very particularly preferred Tenacity of more than 50 cN / tex and a maximum tensile strength of have less than 5%.
  • two-component loop yarns can consist of all synthetic spinnable polymers and polycondensation products, such as.
  • Polyamides such as aliphatic, aromatic or aliphatic-aromatic Polyamides; Polyacrylonitrile; Polyolefins, such as polyethylene or Polypropylene; Polyether ketones, such as PEK or PEEK; Polyarylene sulfides, such as Poly-para-phenylene sulfide; and polyesters such as polyethylene terephthalate, getting produced.
  • aromatic polyamides are particularly preferred the recurring structural units of the formulas I and II as defined above Effect component of the yarns according to the invention; particularly preferred stand and effect components consist of one and the same material.
  • the upper limit of the tenacity of the loop yarns according to the invention also depends on the degree of condensation chosen Aramid material.
  • the degree of condensation of the aramid comes in its Solution viscosity expressed.
  • the production of the two-component loop yarn according to the invention consisting of upright and effect threads is made by blast texturing two or more with a different advance fed to a texturing nozzle Roving strands.
  • the blow texturing is carried out by a fluid, e.g. water or in particular by a gas which is inert to the roving strands, in particular by air that may be humidified or on a previously moistened roving acts.
  • filament material is used for the texturing of blowers in yarns fed to the blow nozzle at a higher speed than drawn from it.
  • the Advance expressed in percent, based on the take-off speed.
  • they are now joined together mixing strands of yarn, which in the finished yarn then the stand or the Effect filaments deliver with different lead of the texturing nozzle fed.
  • the roving strand from which the upright filaments of the yarn according to the invention emerge, the blow nozzle is usually with a lead of 3 to 10%
  • the roving strand from which the effect filaments of the yarn according to the invention emerge usually with an advance fed from 10 to 60%.
  • T S T St * (1 + (V ST / 100)) + T E * (1 + (V E / 100)), where T St and V St are the titer and advance of the roving and T E and V E are the titer and advance of the effect roving.
  • Yarns in the sense of this description are yarns that are in front the inlet into the swirling nozzle and to build up the Loop yarns can be used as stand and effect components.
  • yarns made from aromatic Polyamides containing the recurring structural units defined above of formulas I and II used, which are referred to as high tenacity yarns can, while as an effect component, both conventional textile Multifilament yarns as well as high-strength multifilament yarns can be used can.
  • feedstocks can either already be considered high strength Multifilament yarns are presented to the texturing device or the stretched immediately before entering the texturing nozzle.
  • Upright roving yarns are preferably used which have a maximum tensile force, based on the final titer, of at least 100 cN / tex, usually 100 to 250 cN / tex, in particular 125 to 170 cN / tex.
  • roving rovings have a maximum tensile strength elongation of at most 5%, usually from 2 to 4%, preferably from 2.5 to 3.2% on.
  • the trigger voltage is usually at least 0.1 cN / tex.
  • the tension is there preferably to be chosen so that the loops and loops formed in remain essentially unchanged, or not at all or only to a small extent pull together like a bud.
  • the stabilized primary yarn is optionally heated to to fix the yarn structure. It is useful to keep the yarn of constant length hot air treatment at air temperatures of 200 to 600 ° C, preferably subject to 350 to 450 ° C.
  • the two-component loop yarns according to the invention have the for such yarns have known advantages; so the loops of the individual remain Filaments fully preserved and revealed after exiting the blow texturing nozzle good sewing properties thanks to the entrained air, even at high Sewing speeds. This advantage is shown in high values for the so-called sewing length to break, which according to that from DE-A-3,431,832 known methods can be determined. Furthermore, the two-component loop yarns according to the invention by a special high strength.
  • Two-component loop yarn does not have to be twisted. It can can be used untwisted, for example as sewing thread.
  • the two-component loop yarns according to the invention can be especially use as sewing thread.
  • the invention also relates to this Use of the yarn.
  • a bobbin with stand roving titer 440 f 300 and a bobbin with effect roving titer 220 f 150 were placed on the creel. Both rovings consisted of an aromatic polyamide based on terephthalic acid, para-phenylenediamine, 1,4-bis (4-aminophenyl) benzene and 3,3'-dimethylbenzidine.
  • the ratio of the tradition between the texturing nozzle and the downstream take-off mechanism for the upright thread was 2-15%, preferably 3-8%, and for the effect thread 10-50%, preferably 15-25%.
  • the temperatures of the intake and delivery godets were respectively 250 ° C.
  • the drawn yarns were around the heated delivery godets guided.
  • the yarn speed for the drafting systems was separated regulated.
  • the single capillary titer of the roving before it enters the blow nozzle was 1.5 dtex for both the stand and the fancy yarn.
  • the loop yarn was pulled off mechanically stabilized, the tension in the yarn was 0.1 cN / tex. After that the yarn was fixed by passing it through a hot air oven heated to 400 ° C was directed. The subsequent fixation was carried out by means of a process which was carried out in the EP-A-569,082.
  • a loop yarn was obtained with the following characteristics: Yarn titer 644 dtex Maximum traction 4570 cN Tenacity 71.0 cN / tex Maximum tensile strength stretch 2.1% Loop strength 54.61 cN / tex

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (17)

  1. Fil bouclette à deux composants constitué de filaments fixes et de filaments fantaisie, au moins une partie du composant fixe, de préférence la totalité du composant fixe, étant constituée de polyamides aromatiques, caractérisé en ce que les polyamides aromatiques comportent des unités de structure récurrentes de formules I et II -OC-Ar1-CO-NH=AR2-NH- -OC-Ar1-CO-NH-Ar3-NH- dans lesquelles Ar1, Ar2 et Ar3, indépendamment les uns des autres, représentent un reste aromatique bivalent mono- ou polynucléaire, dont les valences libres se trouvent, l'une par rapport à l'autre, en position para ou en position meta ou en une position parallèle, coaxiale ou angulaire comparable à ces positions, et Ar2 et Ar3 prennent dans des cas spéciaux des significations à chaque fois différentes, lesquelles se trouvent dans le cadre des définitions données, et où les éléments constitutifs monomères, qui forment la base du polymère respectif, sont choisis de façon telle qu'il se forme un polyamide aromatique soluble dans des solvants organiques et de préférence formant des solutions isotropes.
  2. Fil bouclette à deux composants selon la revendication 1, caractérisé en ce qu'il présente des filaments fixes, et de préférence aussi des filaments fantaisie, en de tels copolyamides, qui comportent des unités de structure récurrentes de formules III et IV ou des formules III et IV ou des formules III, IV et V ou des formules III, IV et VI ou des formules IV, V et VI -OC-Ar1-CO-NH-AR4-NH- -OC-Ar1-CO-NH-Ar5-Q-Ar6-NH- -OC-Ar1-CO-NH-Ar7-Y-Ar8-NH-
    Figure 00320001
    dans lesquelles
    A1 et Ar4, indépendamment l'un de l'autre, représentent un reste-aromatique bivalent mono- ou polynucléaire, dont les valences libres se trouvent, l'une par rapport à l'autre, en position para ou une position parallèle ou coaxiale comparable à celle-ci, en particulier représentent des restes aromatiques mononucléaires ou binucléaires,
    Ar5 et Ar6, indépendamment l'un de l'autre, représentent un reste aromatique bivalent mono- ou polynucléaire, dont les valences libres se trouvent, l'une par rapport à l'autre, en position para ou en une position parallèle ou coaxiale comparable à celle-ci, ou dans lesquelles Ar6 peut représenter de plus un reste aromatique bivalent mono- ou polynucléaire dont les valences libres se trouvent, l'une par rapport à l'autre, en position meta ou en une position angulaire comparable à celle-ci,
    Q représente une liaison directe C-C ou un groupe de formule -O-, -S-, -SO2-, -O-phénylène-O- ou alkylène,
    Ar7 et Ar8 prennent l'une des significations définies pour Ar5 et Ar6,
    Y prend l'une des significations définies pour Q ou peut représenter de plus un groupe de formule -HN-CO-, et
    X représente un groupe de formule -O-, -S- ou en particulier -NR1-, dans laquelle R1 représente des groupes alkyle, cycloalkyle, aryle, aralkyle ou en particulier un atome d'hydrogène.
  3. Fils selon la revendication 2, caractérisés en ce que le polyamide aromatique présente des unités de structure récurrentes de formules III, IV et V dans lesquelles Ar1 représente 1,4-phénylène, Ar4 représente 1,4-phénylène ou un reste bivalent du 4,4'-diaminobenzanilide, Ar5, Ar6 et Ar7 représentent 1,4-phénylène, Ar8 représente 1,3-phénylène, Q représente -O-1,4-phénylène-O- et Y représente -O- ; en particulier, les taux quantitatifs des unités de structure récurrentes de formules III, IV et V variant, par rapport à la quantité totale de ces unités de structure, dans les domaines suivants :
    unités de structure de formule III : de 40 à 60 % en moles,
    unités de structure de formule IV : de 1 à 20 % en moles, et
    unités de structure de formule V : de 15 à 40 % en moles.
  4. Fils selon la revendication 2, caractérisés en ce que le polyamide aromatique comporte des unités de structure récurrentes de formules III, IV et V, dans lesquelles Ar1 représente 1,4-phénylène, Ar4 représente 1,4-phénylène ou un reste bivalent du 4,4'-diaminobenzanilide, Ar5 et Ar6 représentent 1,4-phénylène, Ar7 et Ar8 représentent 1,4-phénylène substitué par méthyle, Q représente -O-1,4-phénylène-O-et Y représente une liaison directe C-C ; en particulier, les taux quantitatifs des unités de structure récurrentes de formules III, IV et V variant, par rapport à la quantité totale de ces unités de structure, dans les domaines suivants :
    unités de structure de formule III : de 10 à 30 % en moles,
    unités de structure de formule IV : de 10 à 30 % en moles, et
    unités de structure de formule V : de 10 à 60 % en moles.
  5. Fils selon la revendication 2, caractérisés en ce que le polyamide aromatique comporte des unités de structure récurrentes de formules III, IV et V, dans lesquelles Ar1 représente 1,4-phénylène, Ar4 représente 1,4-phénylène ou un reste bivalent du 4,4'-diaminobenzanilide, Ar5 et Ar6 représentent 1,4-phénylène, Ar7 et Ar8 représentent 1,4-phénylène substitué par méthyle, Q représente -O- et Y représente une liaison directe C-C, en particulier les taux quantitatifs des unités de structure récurrentes de formules III, IV et V variant, par rapport à la quantité totale de ces unités de structure, dans les domaines suivants :
    unités de structure de formule III : de 10 à 30 % en moles,
    unités de structure de formule IV : de 10 à 50 % en moles, et
    unités de structure de formule V : de 10 à 60 % en moles.
  6. Fils selon la revendication 2, caractérisés en ce que le polyamide aromatique comporte des unités de structure récurrentes de formules III et IV, dasn lesquelles Ar1 représente 1,4-phénylène, Ar4 représente 1,4-phénylène ou un reste bivalent du 4,4'-diaminobenzanilide, Ar5 représente 1,4-phénylène, Ar6 représente 1,3-phénylène et Q représente -O-, en particulier les taux quantitatifs des unités de structure récurrentes de formules III et IV variant, par rapport à la quantité totale de ces unités de structure, dans les domaines suivants :
    unités de structure de formule III : de 20 à 50 % en moles, et
    unités de structure de formule IV : de 40 à 60 % en moles.
  7. Fils selon la revendication 2, caractérisés en ce que le polyamide aromatique comporte des unités de structure récurrentes de formules III et VI, dans lesquelles Ar1 représente 1,4-phénylène, Ar4 représente 1,4-phénylène ou un reste bivalent du 4,4'-diaminobenzanilide et X représente -NH-, en particulier les taux quantitatifs des unités de structure récurrentes de formules III et IV variant, par rapport à la quantité totale de ces unités de structure, dans les domaine suivants :
    unités de structure de formule III : de 20 à 70 % en moles, et
    unités de structure de formule VI : de 20 à 70 % en moles.
  8. Fils selon la revendication 2, caractérisés en ce que le polyamide aromatique comporte des unités de structure récurrentes de formules III, IV et VI, dans lesquelles Ar1 représente 1,4-phénylène, Ar4 représente 1,4-phénylène ou un reste bivalent du 4,4'-diaminobenzanilide, Ar5 représente 1,4-phénylène, Ar6 représente 1,4- ou 1,3-phénylène et Q représente -O- ou -O-1,4-phénylène-O et X représente -NH-, en particulier, les taux quantitatifs des unités de structure récurrentes de formules III, IV et VI variant, par rapport à la quantité totale de ces unités de structure, dans les domaines suivants :
    unités de structure de formule III : de 10 à 30 % en moles,
    unités de structure de formule IV : de 10 à 40 % en moles, et
    unités de structure de formule VI : de 30 à 70 % en moles.
  9. Fils selon la revendication 2, caractérisés en ce que le polyamide aromatique comporte des unités de formules IV, V et VI, dans lesquelles Ar1 représente 1,4-phénylène, Ar5 représente 1,4-phénylène, Ar6 représente 1,4- ou 1,3-phénylène, Q représente -O- ou -O-1,4-phénylène-O-, Ar7 et Ar8 représentent 1,4-phénylène substitué par méthyle, Y représente une liaison directe C-C et X représente -NH-, en particulier, les taux quantitatifs des unités de structure récurrentes de formules IV, V et VI variant, par rapport à la quantité totale de ces unités de structure, dans les domaines suivants :
    unités de structure de formule IV : de 10 à 40 % en moles,
    unités de structure de formule V : de 20 à 60 % en moles, et
    unités de structure de formule VI : de 30 à 70 % en moles.
  10. Fil bouclette à deux composants selon la revendication 1, caractérisé en ce son titre est de 100 à 1000 dtex.
  11. Fil bouclette à deux composants selon la revendication 1, caractérisé en ce que sa résistance en traction est supérieure à 50 cN/tex.
  12. Fil bouclette à deux composants selon la revendication 1, caractérisé en ce qu'il présente un allongement à la rupture maximal inférieur à 4 %.
  13. Fil bouclette à deux composants selon la revendication 1, caractérisé en ce qu'il présente une résistance en traction supérieure à 50 cN/tex et un allongement à la rupture maximal inférieure à 4 %.
  14. Fil bouclette à deux composants selon la revendication 1, caractérisé en ce qu'il présente un composant fantaisie en polyamides aromatiques contenant des unités de structure récurrentes de formules I et II, définies dans la revendication 1.
  15. Fil bouclette à deux composants selon la revendication 14, caractérisé en ce que les composants fixe et fantaisie sont constitués en une seule et même matière.
  16. Procédé pour la préparation d'un fil bouclette à deux composants constitué de filaments fixe et fantaisie, au moins une partie du composant fixe étant constituée en polyamides aromatiques comportant des unités de structure récurrentes de formules I et II, définies dans la revendication 1, comprenant les mesures suivantes :
    a) apport de deux ou plusieurs écheveaux de mèches, qui se déplacent à des vitesses différentes, à une tuyère de texturation, au moins une partie des écheveaux de mèches étant constituée de polyamides aromatiques contenant les unités de structure récurrentes de formules I et II définies ci-dessus,
    b) vrillage des écheveaux de mèches dans la tuyère de texturation dans des conditions telles qu'il se forme un fil constitué de fils fixes et de fils fantaisie, en formant sur la surface de ce fil des boucles principalement du fil fantaisie, et
    c) enlèvement sous tension de ce fil bouclette primaire à deux composants de façon telle que le fil primaire mentionné se stabilise mécaniquement par diminution de la taille de la boucle, et éventuellement
    d) chauffage du fil primaire stabilisé afin de fixer la structure du fil.
  17. Utilisation des fils selon la revendication 1 comme fil à coudre.
EP95118506A 1994-12-07 1995-11-24 Fils à coudre constitués de deux composants entremêlés à base de filaments d'aramide, procédé pour leur production et leur utilisation Expired - Lifetime EP0718425B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4443456A DE4443456A1 (de) 1994-12-07 1994-12-07 Zweikomponenten-Schlingengarne aus Aramidfilamenten, Verfahren zu deren Herstellung und deren Verwendung
DE4443456 1994-12-07

Publications (2)

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EP0718425A1 EP0718425A1 (fr) 1996-06-26
EP0718425B1 true EP0718425B1 (fr) 1999-06-09

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EP95118506A Expired - Lifetime EP0718425B1 (fr) 1994-12-07 1995-11-24 Fils à coudre constitués de deux composants entremêlés à base de filaments d'aramide, procédé pour leur production et leur utilisation

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US (1) US5645935A (fr)
EP (1) EP0718425B1 (fr)
DE (2) DE4443456A1 (fr)

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US7574818B2 (en) * 2006-05-25 2009-08-18 Nike, Inc. Article of footwear having an upper with thread structural elements
US8893405B2 (en) 2006-05-25 2014-11-25 Nike, Inc. Article of footwear incorporating tensile strands with an elongated cross-sectional shape
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DE4443456A1 (de) 1996-07-04
DE59506162D1 (de) 1999-07-15
US5645935A (en) 1997-07-08
EP0718425A1 (fr) 1996-06-26

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