EP2898128A2 - Fil à effet ignifuge et surface textile constituée dudit fil - Google Patents

Fil à effet ignifuge et surface textile constituée dudit fil

Info

Publication number
EP2898128A2
EP2898128A2 EP13766897.6A EP13766897A EP2898128A2 EP 2898128 A2 EP2898128 A2 EP 2898128A2 EP 13766897 A EP13766897 A EP 13766897A EP 2898128 A2 EP2898128 A2 EP 2898128A2
Authority
EP
European Patent Office
Prior art keywords
yarn
less
core
flame
flame retardant
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Withdrawn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
EP13766897.6A
Other languages
German (de)
English (en)
Inventor
Albrecht LABSCH
Martin GEBERT-GERM
Bernhard Müller
Axel Russler
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.)
Glanzstoff Bohemia sro
Original Assignee
Glanzstoff Bohemia sro
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 Glanzstoff Bohemia sro filed Critical Glanzstoff Bohemia sro
Publication of EP2898128A2 publication Critical patent/EP2898128A2/fr
Withdrawn legal-status Critical Current

Links

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
    • D02G3/443—Heat-resistant, fireproof or flame-retardant 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
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • 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
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20—Cellulose-derived artificial fibres
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/444—Strand is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material

Definitions

  • the invention relates to a yarn which has and in particular consists of a spinning process, in particular wet-spinning of viscose eellulosic regenerated fibers, and which has a flame retardant co-spun at least in part of its cellulosic regenerated fibers flame retardant properties as well as textile structures made of such yarns, in particular textile fabrics.
  • Such yarns have been known in the art for about 30 years. They are suitable for use in protective fabrics (PPE (Personal Protection Equipment) area) for a number of reasons. This is on the one hand in a higher wearing comfort of the cellulosic fibers over synthetic fibers, which can be seen in particular in a higher moisture absorption. Furthermore, as a non-thermoplastic material, cellulose does not tend to deform, melt or increase in adhesion, even at elevated temperatures. Due to the flame retardant properties, such yarns, with a sufficiently high proportion of flame retardant, also achieve sufficient resistance to the effects of fire, and in particular also passed the firing test in accordance with EN ISO 15025.
  • PPE Personal Protection Equipment
  • flame-retardant in flame-retardant properties generally includes resistance to flame exposure in the first place, and more particularly includes resistance to flame exposure in that combustion is not promoted after removal of the applied flame, which corresponds to an LOI of about 25 or higher.
  • the commercially used regenerated fibers are currently staple fibers sold under the trade name Lenzing® FR.
  • Other fibers of wool and / or high-temperature resistant synthetic fibers in the form of intimate mixtures can also be combined with these staple fibers, for example in order to reduce the costs of high-temperature-resistant synthetic fiber yarns alone.
  • the invention has for its object to provide a yarn from which textile fabrics can be produced, in particular in the field of protective clothing, whose usefulness is improved under high loads.
  • This object is achieved by providing the yarn of the aforementioned type, which is characterized essentially in that it has a nonhomogeneous over its cross-section distribution of the spun flame retardant with respect to the yarn center outwardly shifted weight.
  • the invention is based on the finding that the above-described not completely satisfactory usability is due to an insufficient dimensional stability of the textile fabric under prolonged exposure to heat. Due to the inhomogeneous distribution of the spun-on flame retardant a garnmittennaher area is created with relatively lower or vanishing flame retardant, which improves the dimensional stability of the total yarn. In that regard, it is surprising that a higher quality of textile fabrics against extreme heat effects is not achieved by an increased flame retardant addition, but by a reduction in flame retardants based on the total weight of the textile fabrics. In the case of the preferred phosphorus-containing flame retardants, there are economic as well as ecological advantages.
  • a fabric made only from such a yarn under ten-minute heat exposure of 260 ° C a maximum dimensional change subject to less than 10%.
  • the criteria set out in NFPA 1971 may be used as a test criterion.
  • the co-spun flame retardant could be added in the form of a particulate solid to the dope as a dispersion.
  • a phosphorus-containing flame retardant is used, in particular 2,2'-oxybis [5,5-dimethyl-1, 3,2-dioxaphosphorinane] 2,2 'disulphide, also known under the trade name Exolit or Sandoflam.
  • a phosphorus content based on the cellulose in the range of 2.5% or higher, preferably 2.8% or higher, more preferably 3.2% or higher, or even higher than 3.5% is desired.
  • the yarn has a core-shell structure, wherein the shell has a higher flame retardant content than the core.
  • a ratio core: shell of 4: 5 or smaller, preferably 3: 4 or smaller, in particular 2: 3 or smaller could be provided.
  • the jacket itself could have a homogeneous flame retardant distribution, as well as the core.
  • the stated proportions are favorable in order to achieve sufficient resistance to burning (for example according to burning tests from EN ISO 11612 and EN ISO 469 with respect to EN ISO 15025), in particular if a textile fabric to be produced from the yarn is no further component having.
  • blending-inhibiting fiber types are used as blending partners for the production of such a fabric, which in themselves fulfill high requirements for thermal resistance tests (for example according to ISO 17493), the specified ratio could also be 1: 1 or greater.
  • the yarn is a hybrid yarn.
  • the core of the hybrid yarn should furthermore preferably have or consist of a cellulosic multifilament.
  • the soul can be free of flame retardants with an LOI of 17. It is particularly preferred that the cellulosic multifilament used for the soul is spun according to the modal method known per se, that is the modified classical viscose method with which increased strength properties can be achieved.
  • this cellulosic multifilament when manufactured, has parameter values for the quotient of the percent measured draft and the final take-off speed defined in meters per minute Process parameter is less than 2.5 or less than 2.0, preferably less than 1, 67, or less than 1, 5, in particular less than 1, 3 or even 1, 25, but preferably greater than 0.75 and in particular preferably greater than 1.0.
  • the product of these two quantities is on the one hand preferably greater than 3,200, in particular greater than 3,600 or in particular even 4,000, on the other hand preferably less than 8,000, in particular less than 7,500 or even 7,000, corresponding to the parameter values of the claims 14 to 17 of the not yet published application PCT / EP2012 / 002069 of the same applicant.
  • the sheath of the hybrid yarn could be formed by a simple ply and twist of another regenerated cellulosic fiber.
  • the above-explained very high dimensional stability is particularly well achieved, especially when the yarn is a Umwindungsgarn.
  • the production of twisting yarns per se is known to the person skilled in the art. It can be carried out on suitable commercially available machines.
  • the invention also discloses a hybrid yarn with a cellulosic regenerated fiber core and a wrap comprising a regenerated cellulosic regenerated fiber flame retardant, wherein a textile fabric produced only from the hybrid yarn undergoes a dimensional change at a temperature of 260 ° C. for ten minutes of a maximum of 10%, in particular a maximum of 8% learns.
  • the soul of this wrapping yarn could in this case even have a flame retardant itself, in particular in the overall Flammschutzstoffschver notorious shifting manner.
  • the distribution described above with outwardly shifted weight is particularly preferred.
  • the quotient of the titre of the core and the denier of the covering yarn (the turn-around) is preferably 0.75 or less, more preferably 0.6 or less, in particular 0.5 or less.
  • a sheath yarn of the hybrid yarn comprises or consists of a cellulosic multifilament, in particular using the same viscose as the core, thereby achieving as similar mechanical and textile properties as possible.
  • cellulosic multifilaments are described in particular in the above-mentioned unpublished patent application PCT / EP2012 / 002069. It is a high-strength, permanently flame retardant yarn based on regenerated cellulose.
  • This yarn is also marketed under the brand name Viskont ® FR and is in particular, due to its very smooth surface, high abrasion resistance and high specific dry tensile strength in the range of 28 to 30 cN / tex good for use as lining material, for example, in firefighting clothing.
  • sheath yarn of the hybrid yarn is particularly preferred in view of these properties, it would be quite conceivable to form the sheathing yarn of the hybrid yarn based on staple fiber yarns, even if somewhat lower strength properties, especially in abrasion behavior (Martindale, pilling tests) are achieved.
  • the wrap yarn has a twist of 800 TPM or less, preferably 600 TPM or less, more preferably 400 TPM or less, but more preferably 200 TPM or more, preferably 250 TPM or more, on the one hand low basis weights and on the other hand to obtain sufficient fire protection and good structural integrity of the yarn.
  • the single yarn serving as a wrap also has better overall performance characteristics, for example a higher wet modulus correlating with higher dimensional stability to washing.
  • the titres of the individual yarns for core and / or winding it is preferred that these be 220 dtex or less, preferably 190 dtex or less, in particular 167 dtex or less.
  • a textile fabric is also protected by the invention itself, which comprises such a yarn, consists predominantly thereof or is formed purely from this yarn.
  • This textile fabric should have a hot air shrinkage of less than 10%, preferably less than 8%, in particular less than 6%, at a temperature load of 260 ° C. for 10 minutes exposure time.
  • the textile fabric may be a fabric, wherein the yarn of the invention is used at least as a warp yarn.
  • the textile fabric could also be a knitwear.
  • the textile fabric preferably has a weight per unit area of 300 g / m 2 or less, preferably 250 g / m 2 or less, and in particular of 200 g / m 2 or less. As a result, a good wearing comfort can be achieved with satisfactory performance properties.
  • the fabric is a fabric, it is not limited in the nature of its construction. For example, twill weaves of different types, but also plain weaves, satin ribs, or jacquard weaves could be used.
  • the textile fabrics have a rub resistance of at least 80,000 turns, preferably at least 90,000 turns, in particular at least 100,000 turns under load of 12 kPa (measured according to Martindale EN IS012947-1, 2).
  • knits made of the yarn according to the invention can be used for flameproof gloves.
  • the fabrics according to the invention can, as already explained, be used for clothing in the PPE range, for example for clothing for persons in the fire and military, in clean rooms, foundries, blast furnaces and other occupational groups with a high risk of thermal exposure.
  • the applications of the yarn according to the invention also include cords, ropes and ropes as well as the use as a monofilament.
  • Fig. 1 shows a binding cartridge for an example fabric of the invention
  • Fig. 2 shows a comparison of multifilament regenerate fibers versus staple fiber intakes as the chain of fabric achievable strength properties.
  • a first example of a yarn according to the invention is a hybrid yarn whose core is formed by the yarn Viskont HT dtex 67f 38 S90, which is made of the viscose rayon HTFR dtex 167 f60 S90 in S600 and has a denier of 234 dtex.
  • the soul is here flame retardant-free, so that the flame retardant distribution is in the form of a step function with level between soul and zero turn on the flame retardant concentration of the viscose rayon HTFR.
  • This yarn is used as a warp yarn for a fabric construction formed from a heterogeneous mixture.
  • the shot consists of a 20 tex / 1 aramid.
  • a twill weave 2/1 with a warp density of 30 Fd / cm and a weft density of 22 Fd / cm is used, see the weave in Fig. 1.
  • the fabric produced was washed at 60 ° C for 15 minutes and dried in a tumbler at 90 ° C for 40 minutes.
  • the resulting basis weight was 187 g / m 2 .
  • the material was not dyed. However, such coloring would have no effect on the test results presented below.
  • the dimensional change in percent was determined for the fabric under heat of 260 ° C. over 10 minutes in the longitudinal and transverse directions. These were -5% in the longitudinal direction and -0.5% in the transverse direction, as shown in Table 1 below.
  • the tissue was also examined for possible ignition or melting at this temperature, with a negative result (measuring specifications from NFPA 1971, EN ISO 11612 (with respect to the thermal resistance according to ISO 17493 at 260 ° C.)).
  • Another embodiment is a hybrid yarn which is also formed in the form of a rewinding yarn.
  • the soul forms a non-permanently flame-retardant filament yarn dtex 1 10 f 60 S90, the wrapping yarn or the wrap of a permanently flame-retardant yarn dtex 110 f46 S90.
  • a fabric formed solely from this hybrid yarn 220 dtex undergoes a shrinkage at 260 ° C. under 10 minutes exposure time of less than 6% at a ratio of non-permanently flame-retardant to permanently flame-retardant yarn from here 40:60, for example. for both warp and weft (construction twill 3/1, fabric density warp 34 FD / cm, weft 23 FD / cm).
  • a fabric is still presented that is made of 100% FR filament, dtex 290, construction chain and shot 225 g / m 2 .
  • Table 5 shows the heat shrink process of this assembly for several samples at two temperatures. It can be seen that at 180 ° C only a very small percentage of shrinkage takes place, which also meets the standard EN ISO 11612. At even higher temperatures, however, these low levels can not be maintained.
  • multifilament regenerate fibers in preference to staple fibers or staple fiber intakes is preferred. Comparing the basis weight strengths, higher strength values of 20% to 30% are achieved in the warp if these consist of multifilament regenerate fibers rather than staple fiber intakes. This is illustrated in FIG. 2, which insofar does not relate to the fabrics according to the invention themselves, but serves to explain the background for specific preferred embodiments of the invention.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Artificial Filaments (AREA)

Abstract

L'invention concerne un fil qui présente des fibres de cellulose régénérées produites au moyen d'un procédé de filage, en particulier un procédé de filage par voie humide à partir de viscose, ledit fil se composant en particulier desdites fibres régénérées. Ledit fil présente des propriétés ignifuges dues à un agent ignifugeant intégré par filage au moins dans une partie de ses fibres de cellulose régénérées. Vu dans sa section transversale, ledit fil présente une répartition hétérogène de l'agent ignifugeant intégré par filage avec un poids décalé vers l'extérieur relativement au milieu du fil.
EP13766897.6A 2012-09-24 2013-09-20 Fil à effet ignifuge et surface textile constituée dudit fil Withdrawn EP2898128A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012018814.5A DE102012018814A1 (de) 2012-09-24 2012-09-24 Garn mit Flammschutzwirkung und daraus gebildete textile Flächengebilde
PCT/EP2013/002840 WO2014044401A2 (fr) 2012-09-24 2013-09-20 Fil à effet ignifuge et surface textile constituée dudit fil

Publications (1)

Publication Number Publication Date
EP2898128A2 true EP2898128A2 (fr) 2015-07-29

Family

ID=49253248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13766897.6A Withdrawn EP2898128A2 (fr) 2012-09-24 2013-09-20 Fil à effet ignifuge et surface textile constituée dudit fil

Country Status (4)

Country Link
US (1) US20150252500A1 (fr)
EP (1) EP2898128A2 (fr)
DE (1) DE102012018814A1 (fr)
WO (1) WO2014044401A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2017004821A (es) * 2014-10-14 2017-11-20 Coolcore Llc Hilos hibridos, metodos para fabricar hilos hibridos y telas fabricadas de hilos hibridos.
JP2019522633A (ja) 2016-05-20 2019-08-15 ジェネンテック， インコーポレイテッド Ｐｒｏｔａｃ抗体コンジュゲート及び使用方法
TWI829660B (zh) * 2017-11-11 2024-01-21 美商天然纖維焊接股份有限公司 紗與熔接紗
US10557219B1 (en) * 2018-12-28 2020-02-11 Brrr! Inc. Methods and compositions for cooling yarns and fabrics comprising a cellulosic fiber, and articles comprising same
US11905630B2 (en) 2019-02-22 2024-02-20 Jess Black Inc. Fire-resistant double-faced fabric of knitted construction
WO2023056069A1 (fr) 2021-09-30 2023-04-06 Angiex, Inc. Conjugués agent de dégradation-anticorps et leurs procédés d'utilisation

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Publication number Priority date Publication date Assignee Title
NL272684A (fr) * 1960-12-27
JPS63196741A (ja) * 1987-02-09 1988-08-15 東洋紡績株式会社 熱防護用布帛
DE202006013450U1 (de) * 2006-09-01 2006-11-16 Pro-Belting International Gmbh & Co. Kg Flammhemmendes, textiles Material für Schutzkleidung
US20080299854A1 (en) * 2007-06-01 2008-12-04 Ssm Industries, Inc. Flame Resistant Spacer Fabric
JP5188841B2 (ja) * 2008-03-05 2013-04-24 ユニチカトレーディング株式会社 複合紡績糸及び織編物
JP4457182B2 (ja) * 2008-07-24 2010-04-28 株式会社カネカ 難燃性合成繊維と難燃繊維集合体及びそれらの製造方法、並びに繊維製品
WO2012100305A1 (fr) * 2011-01-26 2012-08-02 Lincspun Ltd Fil à multicomposants
DE102011101321A1 (de) 2011-05-12 2012-11-15 Glanzstoff Bohemia S.R.O. Flammhemmende Celluloseregeratfilamentfasern und Verfahren zu dessen Herstellung

Non-Patent Citations (1)

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Title
See references of WO2014044401A3 *

Also Published As

Publication number Publication date
US20150252500A1 (en) 2015-09-10
DE102012018814A1 (de) 2014-03-27
WO2014044401A2 (fr) 2014-03-27
WO2014044401A3 (fr) 2014-05-15

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