EP3775341A1 - Structure textile - Google Patents

Structure textile

Info

Publication number
EP3775341A1
EP3775341A1 EP19714371.2A EP19714371A EP3775341A1 EP 3775341 A1 EP3775341 A1 EP 3775341A1 EP 19714371 A EP19714371 A EP 19714371A EP 3775341 A1 EP3775341 A1 EP 3775341A1
Authority
EP
European Patent Office
Prior art keywords
fabric
aramid
connections
para
meta
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19714371.2A
Other languages
German (de)
English (en)
Inventor
Sonja Huebner
Danny Steiner
Andreas Will
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.)
Theodolf Fritsche & Co KG GmbH
Original Assignee
Theodolf Fritsche & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Theodolf Fritsche & Co KG GmbH filed Critical Theodolf Fritsche & Co KG GmbH
Publication of EP3775341A1 publication Critical patent/EP3775341A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D03D11/02—Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
    • 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
    • D03D15/567—Shapes or effects upon shrinkage

Definitions

  • the invention relates to a textile fabric, in particular to a single-layer composite fabric made of several layers, which is used for the production of protective clothing or for technical applications, e.g. can be used in machinery or property protection. Resistance to arc fault protection and protection against heat and flames play a greater role here. In protective clothing but are also more
  • Requirements such as a degree of comfort, in particular the basis weight, the air and water vapor permeability and the
  • the aim is to keep the temperature on the inside as low as possible after heat / energy exposure to damage and
  • this object is achieved with a multilayer textile
  • a lower layer of a first fabric pointing in a direction of a wearer of clothing formed with the textile fabric is selectively connected to one another by means of a weaving or sewing connection with a top layer of a second fabric arranged away from the backing ,
  • non-activated channels are formed, which develop only in the case of heat / flame action and form segments between the point connections, so that in a case of acting heat or flame air through the channels between the first tissue and the second tissue in all directions can flow.
  • heat can be distributed two-dimensionally over a larger area.
  • Polyamideimide twisted / filaments / fibers or blends with these be formed and the first tissue an increased proportion of a high-strength and higher temperature-resistant fiber component
  • para-aramid, polybenzimidazole or poly (p-phenylene-2,6-benzobisoxazole fibers / twines / filaments in relation to the first fabric layer have a defined admixture of high-strength, higher temperature-resistant fibers in the first fabric, the protective effect considerably This avoids the breaking of the first layer after activation of a channel structure and allows the fabric to develop its full protective effect, producing the first fabric from 100% or nearly 100% para-aramid or a material that has similar properties and for which Examples of these have been theoretically possible, but a fabric made in this way has disadvantages, since pure para-aramid has an abrasive effect and thus causes a poor wearing comfort.
  • Meta-aramid can be, for example, under the trade designations NOMEX ®, New Star or CONEX Polyamidimidgarne under the tradename KERMEL, para-aramid under the trade name KEVLAR ®, TWARON ®, Technora ®, colon ®, polybenzimidazole as PBI and poly (p-phenylene -2,6-benzobisoxazole under the trade name Zylon ®, obtain and use.
  • both tissues additionally at least one other fiber type may be contained in a proportion of less than 5%.
  • the first fabric should contain from 70% to 80% meta-aramid, 20% to 28% para-aramid, and 0 to 5% carbon fiber and the second fabric from 90% to 95% meta-aramid, 2% up to 10% para-aramid, and 0 to 5% carbon fiber. Very good results can be achieved when the first fabric with 75% meta-aramid, 23% para-aramid and 2% carbon fiber and the second fabric 93% meta-aramid, 5% para-aramid and 2% Carbon fiber are formed.
  • Carbon fibers which may be contained in a first and / or second fabric, may be coated with polyamide.
  • the fabric should have a basis weight greater than 220 g / m 2 and less than 450 g / m 2 in order not to compromise the wear comfort by a too large net mass.
  • a basis weight of 320 g / m 2 ⁇ 5% has been found to be favorable in terms of comfort and protective effect out.
  • the maximum tensile force of the second layer in accordance with ISO 13934-1 should be at least 450 N / 5cm in both directions, as is customary in the industry.
  • Yarns with a thickness of Nm 60/2 +/- 10 can usually be used for the production of the fabric of the invention with 320 g / m 2 .
  • Wavelength spectrum of near infrared light (NIR) and infrared light (IR) as the second layer This leads to increased energy absorption or improved carbonization and thus reduces the risk of tissue breakage, which still enhances the functioning of the first tissue in particular the increased para-aramid content or an equivalent material, examples of which have been mentioned above.
  • This can also be achieved, for example, by suitable coloring or the addition of more strongly absorbing fibers in the first fabric.
  • the lower layer and the upper layer should preferably be selectively connected to one another at the corners of a polygon, in particular a square or rectangle, and free spaces should remain between the punctual woven or stitched connections.
  • the two layers are held together only by the punctiform connections (see schematic cross section tissue figure 2). However, between the punctiform connections remain unconnected areas that can form channels in a puffing of the second tissue, for a pressure equalization and an improved
  • Flow behavior can be used. See figures la and lb, as an example of a section of the binding cartridge which is magnified by repeated duplication or reflection in the further course.
  • the second fabric which faces away from the respective support, inflates, as a result of which greatly heated regions of the textile fabric further remove the second fabric from the wearer's body and skin. This further improves the protective effect.
  • polygonal or tubular segments can preferably be formed whose cavities between the lower and upper layers are directly connected to one another via the intermediate spaces. Air can thus flow almost unhindered on a short path from one segment to an adjacent segment without having to accept a large detour or flow resistance. Thus, a pressure and temperature compensation between segments can be achieved in less time, since a reduced flow resistance can be achieved. In order to achieve this, a distance of at least 0.05 mm should be maintained between the individual punctual weaving or sewing connections, in which there is no connection between the lower and the upper layer.
  • the number of connection points of the punctual connections is in a range of 1% - 10% of the total possible binding points of the two layers. So there is in a comparable conventional
  • Multi-layer fabric with comparable setting and repeat size, the possibility for max. 484 setting options per repeat.
  • At least 90%, preferably at least 95% and at most 99%, of the length between juxtaposed punctiform connections of the first and second tissues should not be interconnected, so that a correspondingly large channel width can be achieved between adjacent segments when corresponding heating has occurred is that has led to a shrinkage and bloating. This is important because it can lead to breakage of the tissue and heat penetration at more tied bonds because the tissue is not able to dissipate the higher amount of energy targeted.
  • the selectively arranged weaving or sewing connections can be designed star-shaped.
  • Web or sewing connections for punctual connections should be anchored securely only to the one layer, preferably on the first tissue, thereby tensile forces act on these connections in an occurred shrinkage of the first tissue, which support a three-dimensional effect, as in a drawstring on a closable bag or foil bag occurs.
  • a known ATPV test (Arc-Thermal-Protective-Value, IEC 61482-1-1) should have a value of at least 20 cal / cm 2 , preferably at least 25 cal / cm 2 and most preferably at least 29 cal / cm 2 reached.
  • the class II of the box test according to IEC 61482-1-2 should be fulfilled (7kA).
  • materials with a Ret less than 6 are classified as extremely breathable. This is especially important because other commercially available materials - which provide approximately the same protection - have a much lower breathability and thus a poorer comfort. This is especially true for materials with integrated membrane. Considering that the protective clothing must be worn daily and constantly, the wearing comfort is an important
  • the sheet according to the invention is characterized by an improved protective effect, which is not recognizable in the normal state, with non-activated protective function, at the same time good wearing comfort.
  • the tissue In the non-activated state, the tissue is hardly distinguishable from a standard tissue of the same weight, the function is only activated in a fraction of a second in an emergency. Due to the resulting relatively low Thickness can also cost because of the lower
  • meta-aramid fibers one can use fibers of poly-metaphenylene
  • Isophtalamide and as para-aramid fibers can be used those of poly-Paraphenylene terephthalamide.
  • the first and the second fabric can be produced together in one operation and connected to one another.
  • FIGS. 1 a and b show examples of a possible punctiform connection of a first fabric forming a lower layer with a second fabric forming an upper layer with fixed punctiform connections which can be either mirrored or duplicated in the repeat;
  • Figure 2 shows a detail of a longitudinal section with the course of
  • Figure 3 is a diagram that is intended to illustrate the achievement of an ATPV value with different basis weights, and for comparison, a multi-layer fabric with
  • a first fabric 4 is formed with 75% meta-aramid, 23% para-aramid and 2% carbon fiber and the second fabric 3 is formed with 93% meta-aramid, 5% para-aramid and 2% carbon fiber ,
  • the carbon fibers are encased in a conventional manner with polyamide.
  • Tissues formed textile surface element has a basis weight of approx.
  • This type of connection can also be referred to as a hollow fabric with targeted setting of the layers based on pique.
  • Figure lb is a section of the binding cartridge, as is customary in the textile industry and which can be used for the production of selective compounds 1.
  • This form of punctiform connections 1 of the lower and the upper layer can be applied independently of the respective fabric compositions. It is not limited to the example described here.
  • punctiform connections 1 may actually be formed purely as punctiform seams or fabric structures. But it is important that the connection between the first and The spacing of the virtual centers of juxtaposed point connections 1 in this example is 9-12 mm.
  • FIG. 4 is intended to illustrate how a conventional two-ply textile structure behaves in the case of localized heating in comparison to a textile fabric according to the invention.
  • this is left and for the invention, this is shown on the right in four stages, which occur consecutively in time.
  • the inflated pockets are A and the bloated ones

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Woven Fabrics (AREA)

Abstract

La présente invention concerne une structure textile dans laquelle une couche inférieure d'un premier tissu orientée dans la direction d'un porteur de vêtement qui est fabriqué avec la structure textile, est reliée à une couche supérieure d'un second tissu orientée à distance du porteur au moyen d'une liaison mutuelle ponctuelle par tissage ou par couture au niveau des sommets et des canaux non activés sont réalisés entre des liaisons ponctuelles. Les canaux se déploient d'abord sous l'effet de la chaleur/des flammes et constituent, entre les liaisons ponctuelles, des segments de manière à ce que l'air puisse circuler dans toutes les directions par les canaux entre le premier tissu et le second tissu en cas de chaleur ou de flammes.
EP19714371.2A 2018-03-27 2019-03-26 Structure textile Withdrawn EP3775341A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018204601.8A DE102018204601A1 (de) 2018-03-27 2018-03-27 Textiles Flächengebilde
PCT/EP2019/057519 WO2019185591A1 (fr) 2018-03-27 2019-03-26 Structure textile

Publications (1)

Publication Number Publication Date
EP3775341A1 true EP3775341A1 (fr) 2021-02-17

Family

ID=65991791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19714371.2A Withdrawn EP3775341A1 (fr) 2018-03-27 2019-03-26 Structure textile

Country Status (3)

Country Link
EP (1) EP3775341A1 (fr)
DE (1) DE102018204601A1 (fr)
WO (1) WO2019185591A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9101311U1 (de) * 1991-02-06 1991-04-25 Tempex GmbH Schutzausrüstungen, 7920 Heidenheim Schutzbekleidung
FR2831771B1 (fr) * 2001-11-07 2004-08-27 Kermel Materiau complexe multicouches en feuille utilisable pour la realisation de vetements de protection notamment pour sapeurs-pompiers
US20060046022A1 (en) 2004-08-27 2006-03-02 Yves Bader Thermally-resistant composite fabric sheet
DE202007014673U1 (de) 2007-10-19 2007-12-13 Theodolf Fritsche Gmbh & Co. Kg Stoff für Schutzbekleidung gegen Störlichtbogen
EP2479323A1 (fr) * 2009-09-18 2012-07-25 Tag Innovación, S.A. Textile double toile
DE102012101708A1 (de) * 2012-03-01 2013-09-05 Rofa Bekleidungswerk GmbH & Co. KG Mehrfachgewebe für Schutzkleidung bei Arbeiten unter Spannung mit thermischen Gefahren durch Lichtbogen
DE102015010524A1 (de) * 2015-08-13 2017-02-16 Trans-Textil Gmbh Verfahren zur Herstellung eines schwerentflammbaren Textilmaterials für Schutzbekleidung, schwerentflammbares Textilmaterial und daraus hergestellte Schutzbekleidung
DE202015105281U1 (de) * 2015-10-06 2015-10-19 Consultiv Ag Außenmaterial für Einsatzbekleidung und Einsatzbekleidungsstück

Also Published As

Publication number Publication date
WO2019185591A1 (fr) 2019-10-03
DE102018204601A1 (de) 2019-10-02

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