EP1740064A1 - Tissu - Google Patents

Tissu

Info

Publication number
EP1740064A1
EP1740064A1 EP05729072A EP05729072A EP1740064A1 EP 1740064 A1 EP1740064 A1 EP 1740064A1 EP 05729072 A EP05729072 A EP 05729072A EP 05729072 A EP05729072 A EP 05729072A EP 1740064 A1 EP1740064 A1 EP 1740064A1
Authority
EP
European Patent Office
Prior art keywords
fiber component
fabric
fiber
weight
fabric according
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Withdrawn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
EP05729072A
Other languages
German (de)
English (en)
Inventor
Wolfgang Quednau
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.)
Mewa Textil Service AG and Co Management OHG
Original Assignee
Mewa Textil Service AG and Co Management OHG
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 Mewa Textil Service AG and Co Management OHG filed Critical Mewa Textil Service AG and Co Management OHG
Publication of EP1740064A1 publication Critical patent/EP1740064A1/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Withdrawn legal-status Critical Current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
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/08—Heat resistant; Fire retardant
    • 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
    • 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.]

Definitions

  • the invention relates to a fabric for protective clothing, in particular for protection against liquid aluminum splashes.
  • protective clothing In a large number of workplaces, hazards for the personnel, for example due to mechanical, chemical, biological, electrical and / or thermal effects, are conceivable due to the specific environment. In order to avoid impairments, protective clothing is used in many areas. Protective clothing is to be understood in particular as personal protective equipment which is intended to protect the human body, in particular the trunk, arms and legs, from harmful effects at work.
  • the different versions of protective clothing can protect against one or more harmful influences.
  • the protective effect of protective clothing is determined by the design of the clothing, but essentially by the properties of the fabrics and materials used. It applies to all protective clothing that, in addition to the specific protective function, they have to meet a multitude of different requirements, which relate in particular to comfort, so that such clothing is accepted and worn by the user who is exposed to the particular dangers.
  • protective clothing is subject to a wide range of requirements, usually defined by national or international standards.
  • protective clothing for heat-exposed industrial workers with the exception of protective clothing for fire fighters and welders, must meet the requirements defined in the European standard EN 531 with regard to its protective fabric.
  • Such protective clothing is intended to protect against short-term contact with flames and / or radiant heat, large molten metal splashes or combinations of these hazards.
  • Aluminum in particular, is becoming increasingly popular in the industrial sector due to its specific properties, such as low weight (lightweight construction) and comparatively good workability. In view of the comparatively low melting point of 660 ° C, it is particularly easy to process.
  • aluminum is characterized by its low density of 2.7 g / cm 3 and is therefore increasingly used as a light metal in many branches of industry. It is used, for example, as a profile, tube, sheet metal or forging for components, such as heat exchangers in the automotive industry, in the form of wire as electrical lines, in the form of foils as packaging material and insulating material, among others
  • the standard mentioned requires protection in the event of brief flame contact. Such protection includes then guaranteed if the fabric of the protective clothing does not continue to burn on contact with the flame and does not show any burning or melting dripping. The latter could cause injuries and promote the spread of an initially local source of fire.
  • the protective clothing should in particular prevent burns from contact with the hot metal.
  • fabrics made of 50% wool and viscose or polyvinyl alcohol are usually used as fabrics which offer adequate protection against liquid aluminum splashes. Compared to cotton and linen, wool is less flammable and, like viscose, is breathable and temperature-regulating, while the chemical fibers polyvinyl alcohol or viscose ensure good deformation properties.
  • the clothing When working with the liquid aluminum material, the clothing is usually soiled that the contamination can also impair basic safety requirements, such as limited flame spread. For this reason, frequent cleaning of protective clothing is required to maintain safety standards. For organizational reasons, this can usually only be achieved satisfactorily by an automated, industrial washing process for protective clothing.
  • the problem here is that in industrial washing and drying, the mechanical and / or chemical treatment and stress reduce the wearing comfort and in particular the protective effect, or at least impair it. Therefore, the fabric of the clothing of the type in question should be suitable for an industrial washing and drying process, that is to say that it can withstand many such washing and drying cycles without shrinking, creasing, seam crimping and, in particular, without significantly deteriorating its heat and fire protection properties.
  • the fibers of the type mentioned above are in this composition for an industrial washing and drying process is unsuitable because the wool usually matted during this treatment and viscose and polyvinyl alcohol are not sufficiently temperature-resistant to the drying and smoothing process and the high shrinkage would also no longer meet the basic safety requirements.
  • the object of the invention is to specify a fabric of the type mentioned above which is particularly designed for protection against liquid aluminum splashes and the associated safety requirements, in particular with regard to the European standard EN 531 (ISO 11612) with the code D, even after a large number of industrial washing and drying processes without compromising on comfort.
  • a fabric which contains the fiber components wool (fiber component A), thermoplastic fibers, in particular polyamide and / or polyester fibers (fiber component B) and modacrylic (fiber component C), the proportion of each individual fiber component being between 5 and 55% by weight (percent by weight).
  • Modacrylic as defined, for example, under the MAC symbol according to DIN 60 00.1, essentially comprises fibers made of linear macromolecules, the chains of which are made up of more than 50 and less than 85% by weight of acrylonitrile.
  • the invention is based on the consideration that a specific strengthening of the fabric should be provided in view of the usability in industrial washing and drying processes.
  • a specific strengthening of the fabric should be provided in view of the usability in industrial washing and drying processes.
  • the fabric previously used to protect against liquid aluminum splashes is changed in the industrial washing and finishing process in such a way that adverse effects on its heat and fire protection properties and also on wearing comfort cannot be excluded.
  • the batch size or loading of industrial washing machines is namely significantly higher than that of normal ones Household washing machines. This leads to a much greater mechanical load on the material to be washed.
  • Detergents and auxiliaries are also used in the industrial washing process, which clean much more effectively and therefore also put a greater strain on the material to be washed - as is well known, the alkalinity of the washing liquor in the industrial washing process is always significantly higher than in the household sector.
  • drying is also preferably carried out, inter alia, by a so-called hot air finishing process.
  • the clothing to be dried is subjected to a hot air flow of 160 ° C; this strain is also significantly higher than in the household care process.
  • the fabric of the protective clothing should be equipped in such a way that it can withstand the stresses mentioned, without Losing safety protection through chemical and mechanical changes and wearing comfort, for example through felting, deforming, seam crimping and the like. Accordingly, a fiber component should be provided, which guarantees a corresponding stability of the fabric against the specified stresses without impairing the protective properties.
  • the high stability requirements for the fibers should not, however, impair comfort to a certain extent.
  • Natural, chemical and special fibers are generally used to manufacture protective clothing. After increasing washing and cleaning processes, the vegetable natural fiber cotton shows a loss of tensile strength, which reduces the mechanical stress. In addition, pure cotton garments tend to shrink when washed. Cotton fabric burns under charring and can be made more resistant to flames and flames caused by glowing metal and slag splashes, e.g. with aflamman and pyrovatex, but it should be noted that the protective effect of the equipment is lost through washing can and must be retrofitted to a number of the equipment depending on the number of cleaning treatments. The animal's natural fiber wool, however, is inherently more difficult to combust. When washing, however, it should be noted that wool mattes at washing temperatures of over 40 ° C.
  • Man-made fibers e.g. the synthetic fibers polyamide, polyester and others generally have higher strength and better maintenance properties than natural fibers.
  • a fabric mixture of the fiber components wool (fiber component A), thermoplastic fibers, in particular polyamide and / or polyester fibers (fiber component B) and modacrylic (fiber component C) with a proportion of each individual fiber component between 5 and 55 wt .% meet the requirements for effective protection against liquid aluminum splashes and for constant comfort even after a large number of washing and drying processes.
  • the fiber components mentioned, for example, have a comparatively low thermal resistance R c t compared to meta- and para-aramids, ie a relatively high thermal conductivity. Heat or thermal energy can thus be dissipated well and it does not focus on a contact point.
  • Wool offers sufficient protection against liquid aluminum splashes.
  • this fiber component has a breathable and temperature-equalizing effect.
  • Polyamide fibers and polyester fibers are light, have a low tendency to wrinkle and retain their shape even when exposed to moisture, have good moisture transport properties and dry quickly; their high strength ensures above-average durability.
  • modacrylic fibers which are also form-resistant and dry quickly, the proportion of wool can be reduced and thus the tendency to felting can be reduced. This means that the fabric with the fiber components mentioned is easy to care for, resistant and guaranteed high wearing comfort and multiple industrial washability with sufficient, especially standard-compliant thermal protection against liquid aluminum splashes.
  • flame-retardant viscose is advantageously provided as a further fiber component (fiber component D) in a proportion of 5 to 55% by weight.
  • the fiber component D contributes to a high degree of comfort.
  • the fiber components A, C and D together are 55 to 95% by weight.
  • a particularly preferred fabric contains 10 to 50% by weight of fiber component A, 5 to 45% by weight of fiber component B, 5 to 55% by weight of fiber component C and 5 to 40% by weight of fiber component D.
  • merino wool preferably of fineness AB or finer, is preferably used as the fiber component A of the fabric, which is particularly skin-friendly and breathable due to its softness.
  • the fineness is specified in the categories usually used, the fineness of category AB corresponds to a fiber diameter of 21 to 22 ⁇ m.
  • the fiber component A whose fiber scales otherwise get caught under the influence of heat, water and movement, advantageously an anti-felt finish.
  • the scale edges in particular can be smoothed by oxidative degradation (oxidative treatment) or polymers can be used with the aim of coating the fiber surface or bonding individual fibers to one another (additive treatment).
  • oxidative treatment oxidative treatment
  • additive treatment additive treatment
  • the anti-felt treatment of the fiber component A is preferably carried out by a combination of oxidative and additive treatment.
  • the antifelt finish is preferably made in the flake, that is, in the unspun state of the textile fiber. This avoids roughening or hardening, which would otherwise be caused by later finishing in the yarn or fabric, and consequently a pleasant, soft feel of the fabric is achieved.
  • weave The way in which horizontal threads, so-called weft threads, and vertical threads, so-called warp threads, cross in a fabric is referred to as a weave.
  • twill weave is characterized in that the weft thread runs in front of and behind two warp threads (2/2-twill) for example in the first row of weaves. In the second row, this shifts by one thread each, so that a diagonally running weaving pattern is created.
  • twill weave such as diamond and pointed twill or herringbone weave. 2/1 twill, in which the weft runs in front of two warp threads and behind one warp thread.
  • the fabric for the protective clothing advantageously has a twill weave, preferably a twill 2/1 weave.
  • a twill 3/1 weave can also be provided.
  • the weight per unit area of the fabric is preferably approximately 350 g / m 2 .
  • the fabric thus fulfills the classification or performance level D2 in the context of EN 531.
  • Particularly favorable properties of the fabric can be achieved by advantageously using a fiber yarn with a yarn number of Nm 10 or 20/2 or 30/3 or 40/4 to Nm 38 or 76/2, preferably of approximately 38/2 up to 40/2.
  • a particularly favorable design of the fabric can be achieved by advantageously using a warp with a thread density of 20 to 50 threads / cm, preferably about 36.8 threads / cm, and a weft with a thread density of 15 to 45 threads / cm, preferably of about 21.6 threads / cm.
  • a fabric is produced with a microstructured surface which has a particularly favorable behavior in the event of liquid splashing.
  • the fabric thus has significantly favorable properties than a comparatively smoother fabric, as would be obtainable, for example, by a plain weave.
  • the fabric mentioned is advantageously used for the production of protective clothing, in particular for protection against liquid aluminum splashes.
  • the fabric is preferably used for the production of protective clothing intended for industrial washing and drying processes.
  • a characteristic parameter for the classification of yarns which, among other parameters, defines, for example, "Technical calculations: spinning, weaving, knitting, knitting", R. Locker et al., Bussesche Verlags Kunststoff GmbH, Herford (1969), in particular p. 58 ff is the so-called twist factor is ⁇ metrisch f ur Single yarn.
  • the fabric is preferably made of a fiber yarn with a twist coefficient ⁇ me trisc h for single yarn of less than 125, advantageously more designed as 84 and in a particularly advantageous embodiment from approximately 90 to 110, in particular approximately 100.
  • the choice of such design parameters takes into account in particular the knowledge that excessive hairiness or pilling could be detrimental to the abperative behavior compared to liquid metal splashes.
  • the advantages achieved by the invention consist in particular in that a fabric with the fiber components wool (fiber component A), thermoplastic fibers, in particular polyamide and / or polyester fibers (fiber component B), modacrylic (fiber component C) and preferably flame-resistant (FR) Viscose (fiber component D) with a proportion of each individual fiber component between 5 and 55% by weight of the wearer of protective clothing made from this fabric even after a large number of washing and drying processes with constant wearing comfort in accordance with the safety requirements of the European standard EN 531 (ISO 11612 ) with code D is protected from the risk of injury from liquid aluminum splashes.
  • security level D2 of the abovementioned standard is guaranteed even with 30 or more washing cycles with a basis weight of 350 g / cm 2 .
  • security level D1 significantly lower basis weights can be achieved; with a sufficiently high basis weight, the requirements of security level D3 can also be met.
  • such a fabric is also particularly well suited for the production of protective clothing against liquid splashes of other metals or materials, such as copper or brass.
  • Example 1 Exemplary embodiments for the production of the fabrics are given below:
  • Example 1 Exemplary embodiments for the production of the fabrics are given below:
  • a fabric with a twill 2/1 weave, with 36.8 warp threads and 21.6 weft threads per cm and a specific weight per unit area of 344 g / m 2 was made from 30 parts by weight of wool, 20 parts by weight of polyamide, 25 parts by weight of Mo - Acrylic and 25 parts by weight viscose FR fibers.
  • the threads were obtained in the usual way by producing the individual fibers in a homogeneous mixture as a mixed fiber yarn and twist Nm38 / 2 (“number metric thirty eight two times”).
  • Merino wool provided with an anti-felt finish was used as the wool ,
  • a fabric with a twill 2/1 weave, with 36.8 warp threads and 21.6 weft threads per cm and a specific weight per unit area of 344 g / m 2 was made from 30 parts by weight of wool, 10 parts by weight of polyester, 20 Parts by weight of modacrylic and 40 parts by weight of viscose FR fibers.
  • the threads were obtained in the usual way by producing the individual fibers in a homogeneous mixture as a mixed fiber yarn and thread Nm 38/2 (“number metric thirty-eight two times”).
  • Merino wool provided with an anti-felt finish was used as the wool.

Landscapes

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

Abstract

L'objectif de l'invention est de créer un tissu pour protéger les vêtements offrant une protection en particulier, contre les éclaboussures d'aluminium liquide, tout en étant confortable à porter et pouvant être utilisé dans un processus de lavage et de séchage industriel. A cet effet, de la laine comprenant des composants en fibres (composant en fibres A). des fibres thermoplastiques, en particulier des fibres polyamide et/ou polyester (composant en fibres B), et du modacryle (composant en fibres C) sont utilisés, le rapport de chaque composant étant compris entre 5 et 55% en poids.
EP05729072A 2004-03-27 2005-03-24 Tissu Withdrawn EP1740064A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410015138 DE102004015138A1 (de) 2004-03-27 2004-03-27 Gewebe
PCT/EP2005/003196 WO2005092132A1 (fr) 2004-03-27 2005-03-24 Tissu

Publications (1)

Publication Number Publication Date
EP1740064A1 true EP1740064A1 (fr) 2007-01-10

Family

ID=34964380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05729072A Withdrawn EP1740064A1 (fr) 2004-03-27 2005-03-24 Tissu

Country Status (4)

Country Link
US (1) US20080214081A1 (fr)
EP (1) EP1740064A1 (fr)
DE (1) DE102004015138A1 (fr)
WO (1) WO2005092132A1 (fr)

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Publication number Priority date Publication date Assignee Title
PL2079332T3 (pl) 2006-08-31 2013-08-30 Southern Mills Inc Tkaniny ognioodporne i wykonana z nich odzież
AU2015201105B2 (en) * 2006-08-31 2017-03-09 Southern Mills, Inc. Flame resistant fabrics and garments made from same
AU2012208990B2 (en) * 2006-08-31 2014-12-04 Southern Mills, Inc. Flame resistant fabrics and garments made from same
US20120015185A1 (en) * 2009-12-28 2012-01-19 Daiwabo Rayon Co., Ltd. Flameproof rayon fiber, method for manufacturing the same and flameproof fiber structure
CA2797859A1 (fr) * 2010-04-30 2011-11-03 Drifire, Llc Melanges de fibres pour vetements dotes d'une haute resistance aux temperatures et a l'abrasion et dotes de proprietes de regulation de l'humidite
ES2452918T3 (es) * 2011-11-24 2014-04-03 Ems-Patent Ag Fibras de polímero retardadoras de llama y su uso así como tejido textil que contiene estas fibras de polímero
CN103352284B (zh) * 2013-07-30 2015-07-29 上海特安纶纤维有限公司 一种具有多功能防护效用的纱线和由其制得的织物和成衣
CN106457780A (zh) * 2014-05-08 2017-02-22 南磨房公司 具有羊毛混纺物的阻燃织物
WO2020198668A1 (fr) 2019-03-28 2020-10-01 Southern Mills, Inc. Tissus ignifuges
CN118103557A (zh) 2021-08-10 2024-05-28 南磨房公司 阻燃织物

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Also Published As

Publication number Publication date
US20080214081A1 (en) 2008-09-04
WO2005092132A1 (fr) 2005-10-06
DE102004015138A1 (de) 2005-10-27

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