EP1456446A1 - Flame-resistant wadding material for clothing protecting against thermal effects - Google Patents

Flame-resistant wadding material for clothing protecting against thermal effects

Info

Publication number
EP1456446A1
EP1456446A1 EP02762405A EP02762405A EP1456446A1 EP 1456446 A1 EP1456446 A1 EP 1456446A1 EP 02762405 A EP02762405 A EP 02762405A EP 02762405 A EP02762405 A EP 02762405A EP 1456446 A1 EP1456446 A1 EP 1456446A1
Authority
EP
European Patent Office
Prior art keywords
flame
fibers
resistant
wool
interlining
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Withdrawn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
EP02762405A
Other languages
German (de)
French (fr)
Inventor
Werner Schäfer
Eberhard Link
Hans Rettig
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP1456446A1 publication Critical patent/EP1456446A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D04H1/4342—Aromatic polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/02—Cotton wool; Wadding
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2631—Coating or impregnation provides heat or fire protection
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/689—Hydroentangled nonwoven fabric
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • Y10T442/698—Containing polymeric and natural strand or fiber materials

Definitions

  • the invention relates to a flame-resistant interlining material for protective clothing consisting of a nonwoven fabric with a basis weight of 40 to 200 g / m 2 that is consolidated by treatment with a high-pressure fluid jet.
  • Interlinings in protective clothing are intended to protect the wearer against thermal influences. Therefore, firefighting garments, protective clothing against arcing, such as
  • Document GB 2 245 606 describes flame-resistant interlinings which consist of nonwovens and in which wool fibers, acrylic fibers, aramid fibers, polyamide fibers, polybenzimidazole fibers or viscose fibers are mixed and thermally bonded with a binder or binder fibers after carding.
  • a laminate for fire protection clothing is known from document US Pat. No. 4,849,280, which consists of a first nonwoven layer formed from a mixture of wool and a fiber with high temperature properties and a second woven layer made of wool and high temperature resistant fibers. Statements regarding the consolidation technique and the basis weights as well as their haptic properties cannot be found in the document.
  • the object of the invention is to provide a flame-resistant interlining material of the type mentioned at the outset which meets all the requirements of national and international standards, for example in the field of fire brigade (production and test description for universal firefighting clothing - HuPf, European Norm - EN 469, American standards - NFPA 1971 or AS 4967 - 2001) with regard to flame and heat resistance and dimensional stability after care treatments. Furthermore, the flame-resistant interlining a higher wearing comfort, a softer grip and good water vapor absorption capacity and
  • the object is achieved by a flame-resistant interlining fabric which consists of a nonwoven fabric with high weight fluid jet and a basis weight of 40 to 100 g / m 2 and which contains 20 to 50% by weight of sheep's wool and 50 to 80% by weight of at least one contains synthetic flame retardant fiber.
  • the flame-resistant interlining according to the invention has an insulation capacity, determined by the TPP value (Thermal Protective Performance) according to the US standard NFPA 1971-2000 from 31 to 55 at thicknesses from 0.5 to 2.0 mm and a moisture absorption capacity from 8 to 25% ,
  • the flame-resistant interlining material according to the invention advantageously has a weight per unit area of 50 to 100 g / m 2 . Despite this low basis weight, an insulation capacity comparable to that of known materials is obtained, which means that the weight of the interlining can be reduced by approximately half.
  • the flame-resistant interlining is one in which the sheep wool fiber has a fiber fineness of 15 to 30 m ⁇ and a staple length of 30 to 51 mm and the synthetic, flame-retardant fibers a fiber titre of 1.2 to 3.5 dtex and a staple length of 20 to Have 120 mm.
  • the fiber finenesses and staple lengths according to the invention allow a very even distribution of the fibers and lead to a flame-resistant interlining whose mechanical strength values lead to the required dimensional stability with considerably reduced basis weights even without additional reinforcement with a woven fabric.
  • the synthetic flame-retardant fibers advantageously consist of meta-aramid, para-aramid, melamine resin, polyamide-imide, polyimide, polybenzimidazole and / or preox fibers.
  • mixtures of para-aramid and melamine resin fibers or polyamideimide fibers are preferably used as synthetic, flame-retardant fibers.
  • wool fibers those made from combed merino wool are preferably used.
  • the fineness of the fibers and the staple length of these fibers allow the production of flame-resistant interlining materials according to the invention with a low basis weight, very good haptic properties and the necessary dimensional stability.
  • the sheep's wool fibers can be impregnated with a flame-retardant agent such as potassium hexafluorozirconate (K 2 ZrF 6 ).
  • the flame-resistant interlining materials according to the invention are produced in such a way that the fibers are mixed homogeneously and processed into fibrous webs in a carding or carding machine, solidified by at least one-sided treatment in a high-pressure fluid jet system at pressures of 20 to 235 bar, and then at Temperatures of 190 to 215 C ° can be dried.
  • the flame-resistant interlinings are used as carriers for moisture barriers and / or at least two-ply quilted composite with linings.
  • Example 1 30% by weight combed merino wool with a stack length of 50 to 75 mm and a fiber fineness of 17 to 25 m ⁇ are made with 35% by weight melamine resin fibers with a fiber titer of 2.2 dtex and a stack length of 50 mm and 35% by weight para-aramid fibers with a fiber titer of 1.7 dtex and a stack length of 40 mm, homogeneously mixed and processed in a carding machine to form fiber webs. Solidification takes place on a water jet system at pressures of 130 to 235 bar.
  • the flame-resistant interlinings obtained have a basis weight of 55 to 65 g / m 2 and give a TPP value of 35, with a thickness of 0.95 mm.
  • the moisture absorption capacity is 13%.
  • Example 2 A mixture of 40% by weight combed merino wool with a stack length of 45 to 70 mm and a fiber fineness of 17 to 25 m ⁇ and 60% by weight polyamideimide fibers with a stack length of 60 mm and a fiber titer of 2.2
  • dtex is processed to a flame-resistant interlining with a basis weight of 60 to 90 g / m 2 and results in TPP values of 34 to 42 with thicknesses of 0.9 to 1.3 mm and a moisture absorption capacity of approx. 19% ,

Abstract

A flame-resistant wadding material for protective clothing, consisting of a non-woven reinforced by high-pressure fluid jet treatment, having surface weights of 40 -200 g/m<2>,< >, wherein said non-woven contains 20 -50 wt. %.sheep's wool and 50 -80 wt. %.of at least one synthetic flame-retarding fiber.

Description

Flammresistenter Einlagestoff für Schutzbekleidungen gegen thermische Flame-resistant interlining for protective clothing against thermal
Einwirkungeneffects
Beschreibungdescription
Technisches GebietTechnical field
Die Erfindung betrifft einen flammresistenten Einlagestoff für Schutzbekleidungen bestehend aus einem durch Behandlung mit Hochdruck- Fluidstrahl verfestigten Vliesstoffen mit Flächengewichten von 40 bis 200 g/m2.The invention relates to a flame-resistant interlining material for protective clothing consisting of a nonwoven fabric with a basis weight of 40 to 200 g / m 2 that is consolidated by treatment with a high-pressure fluid jet.
Einlagenstoffen in Schutzbekleidungen sollen den Träger gegen thermische Einwirkungen schützen. Daher sind Feuerwehreinsatzbekleidungen, Schutzbekleidungen gegen Lichtbogeneinwirkungen, wieInterlinings in protective clothing are intended to protect the wearer against thermal influences. Therefore, firefighting garments, protective clothing against arcing, such as
Starkstromelektrikerschutzkleidung, Schweißerschutzkleidung oderHeavy current electrical protective clothing, welding protective clothing or
Rennfahrbekleidungen mit entsprechenden Einlagen ausgestattet. Und dienen dort als thermische Isolationsbarriere gegen Flammeinwirkungen oder zum I nf rarotstrahlenschutz.Racing clothing with appropriate inserts. And serve as a thermal insulation barrier against the effects of flame or for infrared radiation protection.
Stand der TechnikState of the art
Aus dem Dokument US 5,534,325 sind wasserstrahlvemadelte Vliesstoffe aus synthetischen flammhemmenden Fasern bekannt, die zusätzlich Vermikulit enthalten. Diese Vliesstoffe werden als Flammbarriere insbesondere in Sitzen von Passagierflugzeugen eingesetzt. Diese Materialien zeichnen sich zwar durch hohe Temperaturbeständigkeit, gutes thermisches Isolationsvermögen sowie eine sehr hohe Flammbeständigkeit aus, allerdings sind sie aufgrund ihres geringen Feuchtigkeitstransporteigenschaften, schlechter bekleidungsphysiologischer Eigenschaften und eines dadurch eingeschränkten Tragekomforts für Schutzbekleidungen nicht geeignet.Document US 5,534,325 discloses water jet-needled nonwovens made from synthetic flame-retardant fibers which additionally contain vermiculite. These nonwovens are used as a flame barrier, especially in seats used by passenger aircraft. Although these materials are characterized by high temperature resistance, good thermal insulation and very high flame resistance, they are not suitable for protective clothing due to their low moisture transport properties, poor physiological properties of the clothing and the resulting reduced wearing comfort.
Das Dokument GB 2 245 606 beschreibt flammresistente Einlagestoffe, die aus Vliesstoffen bestehen und in denen Wollfasern, Acrylfasem, Aramidfasern, Polyamidfasern, Polybenzimidazolfasem oder Viskosefasern gemixt und mit einem Binder oder Bindefasern nach der Kardierung thermisch gebunden werden.Document GB 2 245 606 describes flame-resistant interlinings which consist of nonwovens and in which wool fibers, acrylic fibers, aramid fibers, polyamide fibers, polybenzimidazole fibers or viscose fibers are mixed and thermally bonded with a binder or binder fibers after carding.
Weiterhin ist aus dem Dokument US 4,849,280 ein Laminat für eine Feuerschutzbekleidung bekannt, welches aus einer erste Vliesstoffschicht gebildet aus eine Mischung von Wolle und einer Faser mit Hochtemperatureigenschaften und einer zweiten gewebten Schicht aus Woll- und hochtemperaturfesten Fasern besteht. Aussagen hinsichtlich der Verfestigungstechnik und der Flächengewichte sowie deren haptische Eigenschaften sind dem Dokument nicht zu entnehmen.Furthermore, a laminate for fire protection clothing is known from document US Pat. No. 4,849,280, which consists of a first nonwoven layer formed from a mixture of wool and a fiber with high temperature properties and a second woven layer made of wool and high temperature resistant fibers. Statements regarding the consolidation technique and the basis weights as well as their haptic properties cannot be found in the document.
Darstellung der ErfindungPresentation of the invention
Die Erfindung hat sich die Aufgabe gestellt einen flammresistenten Einlagestoff der Eingangs genannten Art anzugeben, der allen Forderungen nationaler und internationaler Normen wie zum Beispiel im Feuerwehrbereich (Herstellungsund Prüfungsbeschreibung für eine universelle Feuerwehrschutzkleidung - HuPf, European Norm - EN 469, Amerikanischen Normen - NFPA 1971 oder AS 4967 - 2001 ) im Hinblick auf Flamm- und Hitzebeständigkeit und Dimensionsstäblität nach Pflegebehandlungen erfüllen. Weiterhin sollen die flammresistenten Einlagestoffe einen höheren Tragekomfort, einen weicheren Griff sowie gute Wasserdampfaufnahmefähigkeit undThe object of the invention is to provide a flame-resistant interlining material of the type mentioned at the outset which meets all the requirements of national and international standards, for example in the field of fire brigade (production and test description for universal firefighting clothing - HuPf, European Norm - EN 469, American standards - NFPA 1971 or AS 4967 - 2001) with regard to flame and heat resistance and dimensional stability after care treatments. Furthermore, the flame-resistant interlining a higher wearing comfort, a softer grip and good water vapor absorption capacity and
Feuchtigkeitstransporteigenschaften aufweisen.Have moisture transport properties.
Erfindungsgemäß wird die Aufgabe durch einen flammresistenten Einlagestoff gelöst, der aus einem mit Hochdruck-Fluidstrahl verfestigten Vliesstoff mit Flächengewichten von 40 bis 100 g/m2 besteht und der 20 bis 50 Gew.-% Schafwolle sowie 50 bis 80 Gew.-% mindestens einer synthetischen flammhemmenden Faser enthält. Der erfindungsgemäße flammresistente Einlagestoff weist ein Isolationsvermögen, bestimmt durch den TPP-Wert (Thermal Protective Performance) nach dem US - Standard NFPA 1971 - 2000 von 31 bis 55 bei Dicken von 0,5 bis 2.0 mm und ein Feuchtigkeitsaufnahmevermögen von 8 bis 25 % auf.According to the invention, the object is achieved by a flame-resistant interlining fabric which consists of a nonwoven fabric with high weight fluid jet and a basis weight of 40 to 100 g / m 2 and which contains 20 to 50% by weight of sheep's wool and 50 to 80% by weight of at least one contains synthetic flame retardant fiber. The flame-resistant interlining according to the invention has an insulation capacity, determined by the TPP value (Thermal Protective Performance) according to the US standard NFPA 1971-2000 from 31 to 55 at thicknesses from 0.5 to 2.0 mm and a moisture absorption capacity from 8 to 25% ,
Vorteilhafterweise besitzt der erfindungsgemäße flammresistente Einlagestoff ein Flächengewicht von 50 bis 100 g/m2. Trotz diesem geringen Flächengewichts wird ein bisher bekannten Materialien vergleichbares Isolationsvermögen erhalten, dass heißt, dass das Gewicht des Einlagestoffs um circa die Hälfte reduziert werden kann.The flame-resistant interlining material according to the invention advantageously has a weight per unit area of 50 to 100 g / m 2 . Despite this low basis weight, an insulation capacity comparable to that of known materials is obtained, which means that the weight of the interlining can be reduced by approximately half.
Vorteilhafterweise ist der flammresistente Einlagestoff einer, bei dem die Schafwollfaser eine Faserfeinheit von 15 bis 30 mμ und eine Stapellänge von 30 bis 51 mm und die synthetischen, flammhemmenden Fasern eine Fasertiter von 1,2 bis 3,5 dtex sowie eine Stapellänge von 20 bis 120 mm haben. Die erfindungsgemäßen Faserfeinheiten und Stapellängen gestatten eine sehr gleichmäßige Verteilung der Fasern und führen zu einem flammresistenten Einlagestoff, dessen mechanische Festigkeitswerte auch ohne eine zusätzliche Verstärkung mit einem gewebtem Stoff zu den geforderten Dimensionsstabilitäten bei erheblich reduzierten Flächengewichten führt. Vorteilhafterweise bestehen die synthetischen flammhemmenden Fasern aus Meta-Aramid-, Para-Aramid-, Melaminharz-, Polyamidimid-, Polyimid-, Polybenzimidazol- und/oder Preoxfasern. Vorzugsweise werden jedoch Gemische aus Para-Aramid- und Melaminharzfasern oder Polyamidimidfasern als synthetische, flammhemmende Fasern eingesetzt. Als Wollfasern werden vorzugsweise solche aus gekämmter Merinowolle eingesetzt. Die Faserfeinheit und Stapellänge dieser Fasern gestattet die Herstellung von erfindungsgemäßen flammresistenten Einlagestoffen mit einem geringen Flächengewicht, sehr guten haptischen Eigenschaften und der notwendigen Dimensionsstabilität. Zur weiteren Verbesserung der flammhemmenden Eigenschaften können die Schafwollfasern mit einem flammhemmenden Mittel wie Kaliumhexafluorozirkonat (K2ZrF6) imprägniert werden.Advantageously, the flame-resistant interlining is one in which the sheep wool fiber has a fiber fineness of 15 to 30 m μ and a staple length of 30 to 51 mm and the synthetic, flame-retardant fibers a fiber titre of 1.2 to 3.5 dtex and a staple length of 20 to Have 120 mm. The fiber finenesses and staple lengths according to the invention allow a very even distribution of the fibers and lead to a flame-resistant interlining whose mechanical strength values lead to the required dimensional stability with considerably reduced basis weights even without additional reinforcement with a woven fabric. The synthetic flame-retardant fibers advantageously consist of meta-aramid, para-aramid, melamine resin, polyamide-imide, polyimide, polybenzimidazole and / or preox fibers. However, mixtures of para-aramid and melamine resin fibers or polyamideimide fibers are preferably used as synthetic, flame-retardant fibers. As wool fibers, those made from combed merino wool are preferably used. The fineness of the fibers and the staple length of these fibers allow the production of flame-resistant interlining materials according to the invention with a low basis weight, very good haptic properties and the necessary dimensional stability. To further improve the flame-retardant properties, the sheep's wool fibers can be impregnated with a flame-retardant agent such as potassium hexafluorozirconate (K 2 ZrF 6 ).
Die erfindungsgemäßen flammresistenten Einlagestoffe werden in der Weise hergestellt, dass die Fasern homogen gemischt und in einer Krempel- oder Kardiermaschine zu Faserfloren verarbeitet, durch eine mindestens einseitige Behandlung in einer Hochdruck-Fluidstrahl-Anlage bei Drücken von 20 bis 235 bar verfestigt, sowie anschließend bei Temperaturen von 190 bis 215 C° getrocknet werden.The flame-resistant interlining materials according to the invention are produced in such a way that the fibers are mixed homogeneously and processed into fibrous webs in a carding or carding machine, solidified by at least one-sided treatment in a high-pressure fluid jet system at pressures of 20 to 235 bar, and then at Temperatures of 190 to 215 C ° can be dried.
Erfindungsgemäß werden die flammresistenten Einlagestoffe als Träger für Nässesperren und/oder mindestens zweilagigen Steppverbund mit Futterstoffen verwendet.According to the invention, the flame-resistant interlinings are used as carriers for moisture barriers and / or at least two-ply quilted composite with linings.
Die Erfindung wird nachfolgend anhand von zwei Beispielen dargestellt:The invention is illustrated below using two examples:
Beispiel 1 : 30 Gew.-% gekämmte Merinowolle mit einer Stapellänge von 50 bis 75 mm und einer Faserfeinheit von 17 bis 25 mμ werden mit 35 Gew.-% Melaminharzfasern mit einem Fasertiter von 2,2 dtex und einer Stapellänge von 50 mm sowie 35 Gew.-% Para- Aramidfasem mit einem Fasertiter von 1 ,7 dtex und einer Stapellänge von 40 mm homogen gemischt und in einer Kardiermaschine zu Faserfloren verarbeitet. Die Verfestigung erfolgt auf einer Wasserstrahlanlage bei Drücken von 130 bis 235 bar. Die erhaltenen flammresistenten Einlagestoffe weisen ein Flächengewicht von 55 bis 65 g/m2 auf und ergeben einen TPP- Wert von 35, bei einer Dicke von 0,95 mm. Das Feuchtigkeitsaufnahmevermögen beträgt 13 %.Example 1: 30% by weight combed merino wool with a stack length of 50 to 75 mm and a fiber fineness of 17 to 25 m μ are made with 35% by weight melamine resin fibers with a fiber titer of 2.2 dtex and a stack length of 50 mm and 35% by weight para-aramid fibers with a fiber titer of 1.7 dtex and a stack length of 40 mm, homogeneously mixed and processed in a carding machine to form fiber webs. Solidification takes place on a water jet system at pressures of 130 to 235 bar. The flame-resistant interlinings obtained have a basis weight of 55 to 65 g / m 2 and give a TPP value of 35, with a thickness of 0.95 mm. The moisture absorption capacity is 13%.
Beispiel 2: Eine Mischung aus 40 Gew.-% gekämmter Merinowolle mit einer Stapellänge von 45 bis 70 mm und einer Faserfeinheit von 17 bis 25 mμ sowie 60 Gew.-% Polyamidimidfasern mit einer Stapellänge von 60 mm und einen Fasertiter von 2,2 dtex wird wie in Beispiel 1 zu einem flammresistenten Einlagestoff mit einem Flächengewicht von 60 bis 90 g/m2 verarbeitet und ergeben TPP-Werte von 34 bis 42 bei Dicken von 0,9 bis 1 ,3 mm und einem Feuchtigkeitsaufnahmevermögen von ca. 19%. Example 2: A mixture of 40% by weight combed merino wool with a stack length of 45 to 70 mm and a fiber fineness of 17 to 25 m μ and 60% by weight polyamideimide fibers with a stack length of 60 mm and a fiber titer of 2.2 As in Example 1, dtex is processed to a flame-resistant interlining with a basis weight of 60 to 90 g / m 2 and results in TPP values of 34 to 42 with thicknesses of 0.9 to 1.3 mm and a moisture absorption capacity of approx. 19% ,

Claims

Patentansprüche claims
1. Flammresistenter Einlagestoff für Schutzbekleidungen bestehend aus einem durch Behandlung mit Hochdruck-Fluidstrahlen verfestigten Vliesstoff mit Flächengewichten von 40 bis 200 g/m2, dadurch gekennzeichnet, dass der Vliesstoff 20 bis 50 Gew.-% Schafwolle und 50 bis 80 Gew.-% mindestens einer synthetischen, flammhemmenden Faser enthält.1. Flame-resistant interlining material for protective clothing consisting of a nonwoven fabric which has been consolidated by treatment with high-pressure fluid jets and has a basis weight of 40 to 200 g / m 2 , characterized in that the nonwoven fabric contains 20 to 50% by weight of sheep's wool and 50 to 80% by weight. contains at least one synthetic, flame retardant fiber.
2. Flammresistenter Einlagestoff nach Anspruch 1, dadurch gekennzeichnet, dass der Vliesstoff ein Flächengewicht von 50 bis 100 g/m2 besitzt.2. Flame-resistant interlining according to claim 1, characterized in that the nonwoven fabric has a basis weight of 50 to 100 g / m 2 .
3. Flammresistenter Einlagestoff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schafwollfasern eine Faserfeinheit von 15 bis 30 μm und eine Stapellänge von 30 bis 150 mm und die synthetischen, flammhemmenden Fasern einen Fasertiter von 1,2 bis 3,5 dtex sowie eine Stapellänge von 20 bis 120 mm haben.3. Flame-resistant interlining according to claim 1 or 2, characterized in that the sheep wool fibers have a fiber fineness of 15 to 30 microns and a stack length of 30 to 150 mm and the synthetic, flame retardant fibers have a fiber titer of 1.2 to 3.5 dtex and one Have a stack length of 20 to 120 mm.
4. Flammresistenter Einlagestoff nach Anspruch 1, dadurch gekennzeichnet, dass die synthetischen, flammhemmenden Fasern aus m-Aramid-, p- Aramid-, Melaminharz-, Polyamidimid-, Polyimid-, Polybenzimidazol- und/oder Preoxfasern bestehen.4. Flame-resistant interlining according to claim 1, characterized in that the synthetic, flame-retardant fibers consist of m-aramid, p-aramid, melamine resin, polyamide-imide, polyimide, polybenzimidazole and / or preox fibers.
5. Flammresistenter Einlagestoff nach Anspruch 4, dadurch gekennzeichnet, dass die synthetischen, flammhemmenden Fasern aus p-Aramid- und Melaminharz- oder Polyamidimidfasern bestehen.5. Flame-resistant interlining according to claim 4, characterized in that the synthetic, flame-retardant fibers consist of p-aramid and melamine resin or polyamideimide fibers.
6. Flammresistenter Einlagestoff nach Anspruch 1 , dadurch gekennzeichnet, dass die Schafwolle aus gekämmter Merinowolle besteht. 6. Flame-resistant interlining according to claim 1, characterized in that the sheep's wool consists of combed merino wool.
7. Flammresistenter Einlagestoff nach Anspruch 1 oder 6, dadurch gekennzeichnet, dass die Schafwolle mit flammhemmenden Mitteln imprägniert ist.7. Flame-resistant interlining according to claim 1 or 6, characterized in that the sheep's wool is impregnated with flame-retardant agents.
8. Verfahren zur Herstellung eines flammresistenten Einlagestoffs nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Fasern homogen gemischt und mit einer Krempel- oder Kardiermaschine zu Faserfloren verarbeitet, durch eine mindestens einseitige Behandlung mit einer Hochdruck-Fluidstrahl-Anlage bei Drücken von 20 bis 235 bar verfestigt sowie anschließend bei Temperaturen von 190 bis 215 °C getrocknet wird.8. A method for producing a flame-resistant interlining material according to one or more of claims 1 to 7, characterized in that the fibers are mixed homogeneously and processed with a carding or carding machine to form fiber webs by at least one-sided treatment with a high-pressure fluid jet system Pressures of 20 to 235 bar solidified and then dried at temperatures of 190 to 215 ° C.
9. Verwendung eines flammresistenten Einlagestoffs nach einem oder mehreren der Ansprüche 1 bis 7 als Träger für Nässesperren und/oder mindestens zweilagig im Steppverbund mit Einlagestoffen. 9. Use of a flame-resistant interlining material according to one or more of claims 1 to 7 as a carrier for moisture barriers and / or at least two layers in a quilted composite with interlining materials.
EP02762405A 2001-12-21 2002-07-27 Flame-resistant wadding material for clothing protecting against thermal effects Withdrawn EP1456446A1 (en)

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DE10163548 2001-12-21
DE2001163548 DE10163548C1 (en) 2001-12-21 2001-12-21 Flame-resistant interlining for protective clothing against thermal effects, process for its production and its use
PCT/EP2002/008400 WO2003054265A1 (en) 2001-12-21 2002-07-27 Flame-resistant wadding material for clothing protecting against thermal effects

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CN1606641A (en) 2005-04-13
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AU2002327909A1 (en) 2003-07-09
US20050118918A1 (en) 2005-06-02

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