EP0943710B1 - Tissu ignifuge électroconducteur - Google Patents

Tissu ignifuge électroconducteur Download PDF

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Publication number
EP0943710B1
EP0943710B1 EP99104698A EP99104698A EP0943710B1 EP 0943710 B1 EP0943710 B1 EP 0943710B1 EP 99104698 A EP99104698 A EP 99104698A EP 99104698 A EP99104698 A EP 99104698A EP 0943710 B1 EP0943710 B1 EP 0943710B1
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EP
European Patent Office
Prior art keywords
fabric
electrically conductive
conductive threads
threads
strength
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
Application number
EP99104698A
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German (de)
English (en)
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EP0943710A3 (fr
EP0943710A2 (fr
Inventor
Egon Wurr
Siegfried Hartmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eurea Verpackungs GmbH and Co KG
Original Assignee
Eurea Verpackungs GmbH and Co KG
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Publication date
Priority claimed from DE19826120A external-priority patent/DE19826120C2/de
Application filed by Eurea Verpackungs GmbH and Co KG filed Critical Eurea Verpackungs GmbH and Co KG
Publication of EP0943710A2 publication Critical patent/EP0943710A2/fr
Publication of EP0943710A3 publication Critical patent/EP0943710A3/fr
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Publication of EP0943710B1 publication Critical patent/EP0943710B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • B65D88/165—Flexible intermediate bulk containers [FIBC] with electrically conductive properties
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/43—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with differing diameters
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/573—Tensile strength
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • 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
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • 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
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/063—Load-responsive characteristics high strength
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/16—Physical properties antistatic; conductive

Definitions

  • the invention relates to an electrically conductive fabric made of plastic fibers, plastic tapes or plastic threads for the production of high-strength packaging or lining sheets, which has electrically non-conductive and electrically conductive threads, as well as bulk material containers and liners made of this fabric, especially for shafts in civil engineering and mining.
  • a drawback of these fabrics is that a fabric having a reduced strength and ductility results because it contains yarns in which the carbon black is dispersed throughout the fiber when the carbon black is contained in the fiber in such an amount that a sufficient electrical conductivity is achieved. It should be noted that a sufficient electrical conductivity can not be achieved if the amount of soot contained in the fiber is too small. Also, flame retardant properties of the fabric are not disclosed.
  • a fabric of this type is well suited to the severe mechanical stresses involved in using the fabric for a flexible bulk material container or for a mining liner, and the electroconductive filaments woven in provide safe dissipation of electrostatic charge. It is advantageous that the modulus of elasticity of the electrically conductive threads is smaller than that of the remaining thread material weaved in warp and weft. This prevents that the electrically conductive threads of the fabric break at a lower load, as the threads of the non-conductive base fabric, whereby interruptions in the conductive grid are avoided.
  • the disadvantage is that the electrically conductive thread is highly flammable due to its high carbon content and not extinguished even in the vicinity of heavy combustible, non-electrically conductive threads of the base fabric, but pulls with destruction of the adjacent areas like a burning wick through the tissue.
  • plastics technology it is well known (see SAECHTLING: Plastic Paperback, p 58, 25th edition, Carl Hanser Verlag 1992), plastics with flame-retardant additives to put, which suffocate a flame that they - in the case of chlorine - or bromine-containing organic compounds - impede the access of oxygen to the ground substance when exposed to flame or - for example, in aluminum hydroxide - split off at high temperatures water and / or carbon dioxide.
  • a disadvantage is that additional filling of a filled with conductive carbon black or graphite plastic with a flame retardant additive greatly reduces the strength of the yarn made of such a plastic and makes it unsuitable for use in tissues for the production of high-strength packaging or linings.
  • a bulk material container which is made of a fabric in which metal threads are incorporated, can be derived via the electrostatic charges of the fabric.
  • the invention has for its object to further develop a tissue of the type mentioned, which is electrically conductive and at the same time flame retardant and thus can be used in explosive and fire-prone areas. Also, the fabric should be suitable for the production of high-strength packaging and linings.
  • the object is achieved by the metamorphosis combination of claim 1.
  • flame-retardant is meant the fire behavior of a tissue, in which, upon exposure to a flame, the inflammation of the tissue is prevented or delayed and in which the flame extinguishes spontaneously after ignition within a short period of time.
  • electrically conductive here a fabric is referred to, according to DIN 53482 measured surface resistance and Erdableitwiderstand is at least smaller than the volume resistance of the air, that is less than 10 8 ⁇ , so that a discharge of electrostatic electricity is possible.
  • threads are meant here all spun or extruded plastic fibers, plastic tapes cut from films or other plastic threads which can be processed by weaving technique.
  • the "shrinkage" of plastics is defined as the absolute change in length difference caused by relaxation or retardation processes, based on the initial length.
  • a fabric according to the present invention flame retardant properties, although the electrically conductive threads are made of combustible plastics and contain no flame retardant additives or the additives are contained at most in a small amount with which only a flame extinction is not achievable.
  • the electrically conductive threads of the fabric according to the invention are able to safely dissipate an electrostatic charge against a ground conductor via the applied metal layer or the metal particles contained therein.
  • the plastic melts in the flamed area. While the additives in the non-conductive filaments prevent ignition or cause rapid quenching, inflammation of the electrically conductive filaments is thereby prevented. that these contract strongly under the action of heat and thus avoid prolonged exposure to the flame by shrinking. Even the heat input from adjacent areas of non-conductive, almost incombustible threads leads to a rapid shrinkage of the electrically conductive threads, so that they can escape the vulnerable area even before an immediate flame exposure. The shrinking happens extremely fast.
  • At least the electrically conductive threads are shrinkable under heat. If such threads are woven into a non-shrinkable base fabric, this thread contracts when exposed to flame and as far out of the fabric as the influence of the heat introduced by the flame extends. Outside the heat-affected zone, the thread retains its mechanical and electrical properties.
  • the invention provides that the shrinkage of the electrically conductive threads in each case is greater than the shrinkage of the electrically non-conductive threads. It is therefore also possible that a likewise heat-shrinkable thread is selected for the non-conductive base fabric. Thus, the entire tissue also escapes by shrinking a flame exposure. By the relative to the shrinkage of the background fabric higher degree of shrinkage of the conductive threads ensures that the latter can escape quickly from the flame.
  • the electrically non-conductive threads in an advantageous embodiment consist of a polypropylene, which with a flame-retardant halogen-containing additive is filled and / or coated. This material is inexpensive and is therefore particularly suitable for the production of large-area fabric webs.
  • the electrically conductive threads may be made of a plastic in which the conductivity is increased via a filling with particles of metals or metal compounds or with carbonaceous particles such as carbon black or graphite. Such a filling can be effected inexpensively by adding the conductivity-increasing particles to the plastic raw material.
  • polyaniline is well suited as a conductive plastic.
  • the conductive plastic can be added as an additive to the thread material or the thread can be made entirely of a conductive plastic.
  • the conductive threads can be vaporized with silver.
  • the good electrical conductivity and the good adhesion properties of silver on the plastic enable an electrostatic conduction over the outside of the thread with a small layer thickness.
  • the vaporization of the outside of the thread can also be applied to a thread that is already equipped or filled with conductive additives, whereby the conductivity is further improved.
  • An inexpensive embodiment provides for steaming a monofilament, for example an extruded polyamide thread, with metal or providing it with conductive particles.
  • the flexibility of the thread is increased in another embodiment in which the electrically conductive threads are multifilaments.
  • Such a thread may consist of several fibers, of which at least one fiber is filled and / or coated with conductive particles. Equally thick fibers may be twisted together, it being also conceivable to arrange a thicker, conductive fiber around the core as a sheathing of thinner fibers with which the tear strength is increased.
  • the electrically conductive threads are made of a polyester, preferably of polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • a significant advantage of the invention in terms of electrical properties is that the electrically conductive threads can be woven into warp and / or weft. If electrically conductive are woven in both the warp and the weft threads, a FARADAY cage is created in the production of bodily structures of the fabric according to the invention. Electrostatic charges can thus be derived in two dimensions and increase the safety when using the fabric in an endangered atmosphere. A load on the fabric can be due to similar strength values of electrically conductive and non-conductive threads in any direction, without causing the crack of the conductive threads.
  • the cross section of the electrically non-conductive threads is 2 times to 10 times the cross section of the electrically conductive threads.
  • the shrinking, electrically conductive fiber is not so in the Ground tissue blocks and can escape unhindered from the inflamed area.
  • every tenth to eightieth warp thread is an electrically conductive thread, whereby a balanced combination is achieved from the viewpoint of the manufacturing cost, the optical appearance of the fabric and the electrostatic properties.
  • the area of the non-conductive fabric between each two warp and weft threads enclosing a rectangle is at most 100 cm 2 . It has proved to be advantageous for both the electrical properties as well as for the production and the mechanical strength of the fabric, if the distance of the electrically conductive threads to each other in the warp direction (3) 1 to 5 cm, preferably 2.5 cm, and in Weft direction 10 cm to 60 cm, preferably 40 cm.
  • the fabric advantageously has a breaking strength of 50 N / mm 2 to 250 N / mm 2 at an elongation at break of 10% to 50%.
  • the modulus of elasticity of the electrically conductive threads is smaller than that of the non-conductive threads. This prevents that the electrically conductive threads of the fabric break at a lower load than the threads of the non-conductive base fabric. Interruptions in the conductive grid are thus avoided in any case.
  • a portion of a fabric 100 produced according to the invention is shown.
  • Both warp threads 3 and weft threads 4 are tapes made of a thermoplastic material. Such tapes are obtained in a simple manner that a film is made of a plastic, which is then cut by knives in the web direction in strips. Since standard plastics, in particular polypropylene, are suitable and the ribbons in comparison to textile yarns have a large width of about 0.5 to 5 mm, cost-effective large-area fabric can be produced.
  • electrically conductive threads 2.1, 2.2 are woven, which are drawn here for clarity better schematically as a double line; in a preferred embodiment, the electrically conductive threads have a smaller cross section than the threads of the base fabric.
  • the conductive threads 2.1, 2.2 are woven in both warp and weft, so that a discharge of electrostatic electricity in all directions of the surface can take place.
  • the electrically conductive threads 2.1, 2.2 of the preferred embodiment are twines textured from a plurality of polyester fibers, of which at least one fiber, preferably 4 to 6 fibers, is vapor-deposited with silver.
  • the electrically conductive threads 2.1, 2.2 are monoaxially stretched. The draw is effected at 4 to 10 times the original length, with a stretch ratio of 5: 1 to 6: 1 favorable for most types of plastics.
  • the stretching is carried out after heating the plastic to a temperature above the glass transition temperature of an amorphous thermoplastic or above the crystallite melting temperature of a semi-crystalline thermoplastic and is maintained during cooling. The plastic molecules are aligned by the stretching.
  • the lower region of the tissue 100 in FIG. 1 represents the tissue changes after an attempt to determine the fire behavior.
  • the test criteria were selected in accordance with DIN / EN / ISO 6941 "Measurement of the flame propagation property of vertically arranged samples", whereby an assessment in accordance with DIN 66083 can be carried out is.
  • thermoplastic warp and weft threads (3, 4) melt due to the great heat and form a crumb 7 of plastic melt. Since they are provided with flame-retardant additives, the flamed filaments 3, 4 extinguish about one to two seconds after removal of the burner flame.
  • the electrically conductive threads 2.1, 2.2 are greatly shrunk in the heat affected zone.
  • the heat supplied by the burner flame and adjacent melting ribbons made the molecular chains of the silver-vaporized polyester yarn mobile and the imposed state of stretching was degraded.
  • the relative shrinkage of the conductive threads 2.1, 2.2 causes a relative movement causing the conductive threads to pull away from the point of danger and out of the ground fabric.
  • the result is, by the shrinkage, for example, the conductive thread 2.1, a gap 8.1 in the fabric 100, in which a single warp thread is missing.
  • the weft threads 4 are all present in the region 8.1 of the gap, so that the strength of the fabric is not significantly reduced.
  • the flame does not propagate further in the tissue and the damage in the tissue is limited to the area 6 of the immediate action of flame, in particular, both the mechanical and the electrostatic properties of the tissue remain outside the directly flamed area.
  • the fabric 100 according to the invention is flame retardant, although the electrically conductive thread 2.1, 2.2 is not filled with a content of additives which alone could cause the extinction of a flame, as in the warp and weft threads 3, 4 is the case.
  • the fire behavior test is repeated on a sample of fabric 200 known in the art.
  • the fabric 200 consists of the same warp yarns 3 and wefts 4 used in the fabric 100;
  • the plastic of the threads also contains flame retardant additives.
  • the electrically conductive threads 2.1 ', 2.2' are monofilaments, which have a high proportion of carbon black, whereby a good conductivity is ensured. Flame retardant additives are not immiscible because the strength of the threads would be significantly reduced.
  • the sample is flamed in region 6 'in the same experimental setup as in the previously described example. Due to the high carbon content, rapid ignition and wicking of the electrically conductive filaments 2.1 ', 2.2' was observed. The flame pulled along the lattice-like woven threads 2.1 ', 2.2' through the fabric 200, whereby the threads 3, 4 of the background fabric were destroyed despite the contained flame retardant additives. The attempt had to be stopped at the degree of destruction of the fabric 200 shown in Fig. 2, since the flame did not extinguish by itself.
  • the electrically conductive fabric 100 With the detection of flame retardant properties of the electrically conductive fabric 100 according to the invention, it is suitable for applications in potentially explosive and / or fire-prone environments, such as those typically found in solvent processing plants and in the mining industry due to coal dust and methane gas in the air.
  • FIG. 3 shows a flexible bulk goods container 10 produced from the fabric 100, which consists of a carrying bag 15 with carrying strap designed as transport loops 17, 17 '.
  • the carrying bag 15 In its lid region 14, the carrying bag 15 has a filler neck 18 and in its bottom region 11 an outlet nozzle 19.
  • the carrier bag 5 is made of the high-strength, electrically conductive and flame-retardant synthetic fiber fabric 100.
  • a compaction of the lattice network 12 of electrically conductive threads 2.1, 2.2 can be provided to optimize the discharge behavior.
  • the material for the carrying loops 17, 17 'to ensure the discharge conductive Material incorporated.
  • Important for safety is the seamless grounding during filling and emptying, so that possible electrostatic charges are dissipated.
  • Fig. 4 shows a cross section through a shaft 30 underground.
  • the overburden 31 In horizontally advanced tunnels and shafts of large cross-section, especially when these are intended for the transport of persons and / or material, the overburden 31 must be supported.
  • this carrier 33 are pressed with hydraulic punches 32 against the mountains 31.
  • large-area lining sheets or mats are pressed with the beams 33.
  • These can be wire mesh, but they are heavy and require a lot of transport capacity.
  • a fabric web 100 according to the invention for lining the shaft 30 is a much lighter and easy to cut material available. Since the fabric 100 is high strength, it does not tear even when pressed against outstanding rocks 34.
  • About the woven mesh of electrically conductive threads 2.1, 2.2 electrostatic charges can be discharged to the earth. A possible spread of fire along the liner web is inhibited by the flame retardant properties of the fabric 100.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Woven Fabrics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Conductive Materials (AREA)
  • Wrappers (AREA)

Claims (21)

  1. Tissu ignifuge électriquement conducteur (100) en fibres de matière plastique, rubans de matière plastique ou fils de matière plastique pour fabriquer des emballages ou des bandes de revêtements de haute résistance, qui contient des fils électriquement non conducteurs (3, 4) et des fils électriquement conducteurs (2.1, 2.2) dans lequel les fils électriquement non conducteurs (3, 4) sont équipés, revêtus ou remplis d'une matière additionnelle ignifugeante, dans lequel les fils électriquement conducteurs (2.1, 2.2) se composent d'une matière plastique thermoplastique qui est équipée, ou remplie sous forme finement dispersée, d'au moins un additif élevant la conductivité, ou dans lequel les fils électriquement conducteurs (2.1, 2.2) sont revêtus d'au moins un additif élevant la conductivité, et dans lequel au moins les fils électriquement conducteurs (2.1, 2.2) sont rétractables en longueur par effet thermique, et le retrait des fils électriquement conducteurs (2.1, 2.2) est supérieur au retrait des fils électriquement non conducteurs (3, 4).
  2. Tissu (100) selon la revendication 1, caractérisé en ce que le retrait des fils électriquement conducteurs (2.1, 2.2) par effet thermique est égal à 1,2 à 4 fois, de préférence 2 fois, le retrait des fils électriquement non conducteurs (3, 4).
  3. Tissu (100) selon la revendication 1 ou 2, caractérisé en ce que l'additif élevant la conductivité est un métal ou un alliage métallique, de préférence sous forme de particules.
  4. Tissu (100) selon la revendication 1 ou 2, caractérisé en ce que l'additif élevant la conductivité est du carbone sous forme de noir de fumée et/ou de graphite ou une matière inorganique élevant la conductivité.
  5. Tissu (100) selon la revendication 1 ou 2, caractérisé en ce que l'additif élevant la conductivité est un polymère intrinsèque, de préférence une polyaniline.
  6. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que les fils électriquement conducteurs (2.1, 2.2) sont revêtus d'argent.
  7. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que les fils électriquement conducteurs (2.1, 2.2) sont des monofilaments.
  8. Tissu (100) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les fils électriquement conducteurs (2.1, 2.2) sont des multifilaments dont au moins une fibre est équipée d'additifs élevant la conductivité.
  9. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que les fils électriquement conducteurs (2.1, 2.2) consistent en un polyester, de préférence un polytéréphtalate d'éthylène (PET).
  10. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que les fils électriquement conducteurs (2.1, 2.2) sont introduits par tissage dans la chaîne (3) ou dans la trame (4).
  11. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que les fils électriquement non conducteurs (3, 4) consistent en polypropylène, qui est rempli et/ou enduit d'un additif ignifugeant à teneur en halogènes.
  12. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que le diamètre des fils électriquement non conducteurs (3, 4) est égal à 2 fois à 10 fois le diamètre des fils électriquement conducteurs (2.1 , 2.2)
  13. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que le module d'élasticité des fils électriquement conducteurs (2.1, 2.2) est inférieur au module d'élasticité des autres matières de fils introduits par tissage dans la chaîne (3) et la trame (4).
  14. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que la distance des fils électriquement conducteurs (2.1, 2.2) entre eux est de 1 à 5 cm, de préférence 2,5 cm, dans la direction (3) de chaîne, et est de 10 à 60 cm, de préférence 40 cm, dans la direction (4) de trame.
  15. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que la proportion des fils électriquement conducteurs (2.1, 2.2) est de un sur dix à un sur quatre-vingts pour les fils de chaîne (3) ou de trame (4).
  16. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que la résistance de surface et/ou la résistance de mise à la terre du tissu est inférieure à 104 Ω.
  17. Tissu (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que la résistance du tissu (100) à la rupture est de 50 N/mm2 à 250 N/mm2 pour un allongement à la rupture de 10% à 50%.
  18. Conteneur (10) de produits en vrac qui se compose d'une poche porteuse et de dispositifs porteurs qui y sont fixés comme une oreille ou une sangle porteuses ou similaires (17, 17'), et dans lequel la poche porteuse a été fabriquée en un tissu (100) de haute résistance conforme à l'une quelconque des revendications 2 à 17.
  19. Conteneur (10) de produits en vrac selon la revendication 18, caractérisé en ce que le conteneur de produits en vrac inclut, dans son couvercle (14) et dans sa zone (16) de collerette, un nombre de fils électriquement conducteurs plus grand que dans le reste du tissu de la poche porteuse.
  20. Conteneur (10) de produits en vrac selon la revendication 18 ou 19, caractérisé en ce que, en cas d'utilisation de boucles porteuses (17, 17'), celles-ci sont également fabriquées en un tissu (100) de haute résistance conforme à l'une quelconque des revendications 1 à 17.
  21. Revêtement (30) pour puits dans l'industrie minière et le génie civil qui est fabriqué en un tissu (100) de haute résistance conforme à l'une quelconque des revendications 2 à 17.
EP99104698A 1998-03-20 1999-03-10 Tissu ignifuge électroconducteur Expired - Lifetime EP0943710B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19812406 1998-03-20
DE19812406 1998-03-20
DE19826120A DE19826120C2 (de) 1998-03-20 1998-06-12 Flammhemmendes, elektrisch leitendes Gewebe
DE19826120 1998-06-12

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EP0943710A2 EP0943710A2 (fr) 1999-09-22
EP0943710A3 EP0943710A3 (fr) 2004-01-21
EP0943710B1 true EP0943710B1 (fr) 2006-05-17

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FR2821528A1 (fr) * 2001-03-02 2002-09-06 Fabregue Gestion Et Distrib Ve Vetement de securite bi-couche
CN104762722B (zh) * 2015-03-27 2016-08-17 陕西锦澜科技有限公司 一种涤棉阻燃防静电面料及其制备方法
DE102015219911A1 (de) 2015-10-14 2017-04-20 Robert Bosch Gmbh Faden zur Herstellung eines elektrisch leitenden Gewebes, Verfahren zur Herstellung des Fadens, elektrisch leitendes Gewebe und Verfahren zu dessen Herstellung sowie Kleidungsstück
US10400366B2 (en) * 2017-06-14 2019-09-03 Apple Inc. Fabric items having strands varying along their lengths
CN108194142A (zh) * 2017-12-25 2018-06-22 河北煤炭科学研究院 隐性裂隙带探测方法

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GB2104929A (en) * 1981-07-06 1983-03-16 Milliken Ind Ltd Industrial fabrics
DE3938414C2 (de) * 1989-08-19 1994-04-14 Eurea Verpackung Schüttgutbehälter aus einem gewebten Tragbeutel und daran befestigten Tragvorrichtungen
DE19612225A1 (de) * 1996-03-27 1997-10-02 Rotecno Ag Einsatz von Niederdruck-Plasmen zur Erzeugung elektrisch leitfähiger, textiler Fäden
DE29710701U1 (de) * 1997-06-19 1997-08-28 Schulte, Klaus, Dr., 44149 Dortmund Dauerhaft ableitfähiges Gewebe für den Untertageeinsatz

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EP0943710A3 (fr) 2004-01-21
DE59913425D1 (de) 2006-06-22
EP0943710A2 (fr) 1999-09-22
DE29823441U1 (de) 1999-06-02

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