EP0624669B1 - Tissu composite fait de fils simples ou câblés de fibres textiles conventionnels entrelacés, selon un dessin rectangulaire avec des fils simples ou câblés qui sont au moins partiellement mélangés avec des filaments de carbone, ayant des propriétés protectrices contre les champs électriques - Google Patents

Tissu composite fait de fils simples ou câblés de fibres textiles conventionnels entrelacés, selon un dessin rectangulaire avec des fils simples ou câblés qui sont au moins partiellement mélangés avec des filaments de carbone, ayant des propriétés protectrices contre les champs électriques Download PDF

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Publication number
EP0624669B1
EP0624669B1 EP94105300A EP94105300A EP0624669B1 EP 0624669 B1 EP0624669 B1 EP 0624669B1 EP 94105300 A EP94105300 A EP 94105300A EP 94105300 A EP94105300 A EP 94105300A EP 0624669 B1 EP0624669 B1 EP 0624669B1
Authority
EP
European Patent Office
Prior art keywords
yarns
ply
fabric
carbon filament
ply yarns
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94105300A
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German (de)
English (en)
Other versions
EP0624669A1 (fr
Inventor
Corrado Barbera
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.)
Carlo Barbera & C SpA
Original Assignee
Carlo Barbera & C SpA
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Publication date
Application filed by Carlo Barbera & C SpA filed Critical Carlo Barbera & C SpA
Publication of EP0624669A1 publication Critical patent/EP0624669A1/fr
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Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0035—Protective fabrics
    • D03D1/0058—Electromagnetic radiation resistant
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/233—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads protein-based, e.g. wool or silk
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
    • D03D15/275—Carbon fibres
    • 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
    • D10B2101/00—Inorganic fibres
    • D10B2101/10—Inorganic fibres based on non-oxides other than metals
    • D10B2101/12—Carbon; Pitch
    • 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
    • D10B2211/00—Protein-based fibres, e.g. animal fibres
    • D10B2211/01—Natural animal fibres, e.g. keratin fibres
    • D10B2211/02—Wool

Definitions

  • the present invention concerns a compound fabric made up of a single (one-ply) yarn (hereinafter also called “single”) and ply yarns of conventional textile fibers of any kind and of any yarn count whatsoever, in the warp and weft (or filling) of which are inserted, according to pre-set alternation ratios and with an orthogonal reticular pattern, singles or ply yarns at least partially mixed with a carbon filament.
  • single (one-ply) yarn hereinafter also called “single”
  • ply yarns of conventional textile fibers of any kind and of any yarn count whatsoever in the warp and weft (or filling) of which are inserted, according to pre-set alternation ratios and with an orthogonal reticular pattern, singles or ply yarns at least partially mixed with a carbon filament.
  • carbon filament is used to identify a carbon filament made up of one or more strands.
  • the problem can be solved by inserting, in a predetermined manner, according to an orthogonal reticular pattern with specific, not necessarily equal ratios, in the warp and in the weft, one or more singles or ply yarns mixed, at least partially, with a carbon filament, said singles or ply yarns being inserted between the single yarn or ply yarns of the basic fiber(s) of the fabric.
  • a basic fabric of non-conductive fibers in which electroconductive yarns are inserted, is known in the art.
  • WO 85/00556 discloses an electrostatic dissipating fabric constructed of woven or knitted basic fabric having an integrally woven or knitted grid structure which is raised above the surface of the base fabric thereby resulting in increased electrostatic dissipation performance.
  • the grid is formed from a static discharge yarn plied to a carried yarn which is then woven or knitted into the fabric in the warp direction, the fill direction or both, thereby producing a fabric which exhibits the rapid yet controlled dissipation of static electricity.
  • Such fabric can be used for anti-static garments, anti-static covering cloths, filtration media and the like.
  • This patent does not provide any teaching for a fabric possessing shielding properties against electric fields in the frequency range from 50 to 1000 Hz.
  • a cloth of this kind although its carbon filaments are light-weight and possess flexibility comparable to singles or ply yarns of common natural or man-made textile fibers with higher yarn count, could be suitable for manufacturing everyday clothing to the detriment of appearance, workability and of cost.
  • a sample of fabric according to the instant invention was subjected to shielding effectiveness measurements at the same Italian Public Laboratory.
  • the shielding effectiveness was then measured in the open near a high voltage electric line at 50 Hz placing the same inventive fabric on a dielectric stand which allows the insertion in its inner part of the measuring probe, thus completely shielding the probe against the external electric field.
  • the meshes of the net ought not necessarily to have equal sides,i.e.they may be rectangular rather than square, with the longer side arranged either warpwise or weftwise.
  • alternation ratio of the singles or of the ply yarns mixed with one or more carbon filaments varies according to the weight per square meter of the fabric and thus it depends on the yarn count of the basic yarn, either single or ply, of which the fabric is made up: said alternation ratio, as already mentioned, can vary within the range of 1 out of 2 to 1 out of 100.
  • the preferred range of the alternation ratio for a fabric made of a two-ply yarn of wool fiber having a yarn count of 2/80 equal to 250 dTex lies between 1 out of 3 and 1 out of 16, whereas in the case of a yarn count of 2/150 equal to 133 dTex, the alternation ratio shall preferably vary from 1 out of 16 to 1 out of 25; if the yarn count is of 1/14, or 715 dTex, it shall preferably vary from 1 out of 2 to 1 out of 8;with a yarn count of 2/200,or 100 dTex, said ratio shall preferably vary from 1 out of 20 to 1 out of 40; for a yarn count of 2/300, or 66 dTex, it shall preferably vary from 1 out of 35 to 1 out of 70.
  • Fig.1 is a schematic representation of a fabric made of a single yarn or ply yarn of wool or of any other fiber arranged in plain weave, wherein are inserted, according to a symmetric warp/weft orthogonal reticular pattern and with an alternation ratio of 1 out of 10, elements made of single yarn or ply yarn of wool or of any other fiber mixed with a carbon filament, one every nine single o ply yarns of wool or of any other fiber.
  • Fig.2 is a schematic representation of a compound fabric according to the instant invention made of a single or ply yarn of wool or of any other fiber, in twill weave, wherein are inserted, according to a symmetric warp/weft orthogonal reticular pattern and with an alternation ratio of 1 out of 12, elements made of single or ply yarn of wool or of any other fiber mixed with a carbon filament, one every eleven single or ply yarns of wool or of any other fiber.
  • Fig.3 is a schematic representation of another compound fabric of the invention made of a single or ply yarn of wool or of any other fiber, in Batavia twill weave, wherein are inserted, according to a symmetric warp/weft orthogonal reticular pattern and with an alternation ratio of 1 out of 9, elements made of a single or ply yarn of wool mixed with a carbon filament, one every eight single or ply yarns of wool or of any otner fiber.
  • Fig.4 is a schematic representation of a compound fabric of the invention made of a single or ply yarn which can also comprise fibers of different kind, in Batavia twill weave, wherein are inserted, according to an asymmetric orthogonal reticular pattern, i.e. having a different alternation ratio in the warp over the weft, elements comprising a single or a ply yarn, also of different fibers, mixed with a carbon filament.
  • the elements of the weave for any kind of fabric when comprising the basic fibers only, are identified by a dot in the warp and by a small circle in the weft respectively, whereas when they comprise the same elements at least partially mixed with one or more carbon filaments the dots and/or small circles bear a cross on top.
  • the figures represent one of the surfaces of the fabric, i.e. the visible warp or weft elements, e.g. on the right side of the fabric.
  • the fabrics of the invention can comprise any kind of fiber either natural or man-made, such as e.g. wool, cotton, linen, kemp, rayon, Terylene, Nylon and so forth, and mixtures thereof; the weave can be of any kind, from the most simple, i.e. plain weave, to the more complex ones, such as e.g. Batavia twill weave or twill weave, satin weave and the like.
  • the singles or ply yarns,two-ply, three-ply and so on, of the various kinds of basic fibers can be of any number or size whereas the number or size of the carbon filaments, which is usually very small, varies at the most within the range of from 20 to 70 dTex.
  • Fig.1 illustrates by way of example an inventive fabric made of wool singles as the warp and weft yarn, in plain weave, wherein each warp and weft element goes, in repetitive manner, alternatively, over and under the respective weft and warp element.
  • a mixed yarn comprising a wool single plied with a carbon filament, with a recurring alternation ratio of 1 out of 10, i.e. with a yarn having a carbon filament, as described above, every nine pure wool singles.
  • Each wool single in this case has a yarn count of 250 dTex, whereas the carbon filament has a count of 27 dTex.
  • a wool cloth is shown made of a 2/80 ply yarn (250 dTex) in the warp and of single yarm of the same number in the weft, with an alternation ratio of 1 out of 12, with a symmetric pattern in the warp and in the weft, a twill weave, wherein the weft, in repetitive manner, goes over one warp and under two warp yarns.
  • the mixed elements comprise a wool single plied with a 30 dTex carbon filament in the weft and a two-ply wool yarn plied with a 30 dTex filament in the warp.
  • Fig.3 is shown, by way of example, an inventive cloth having as a basic fiber a wool yarn and a Batavia twill weave, wherein each warp and weft element, in repetitive manner, goes over two and under two respective filling and warp elements.
  • Fig.4 is illustrated, by way of example, a cloth comprising plied yarns of two different kinds of fiber with a Batavia twill weave already shown in the Example of Fig.3, wherein are inserted according to an orthogonal reticular pattern, elements mixed with a carbon filament, viz. with an alternation ratio of 1 out of 12 in the warp and 1 out of 16 in the weft, i.e. one every 11 plied yarns of two different fibers in the warp and one every 15 plied yarns in the weft, as indicated above.
  • the basic elements of the cloth are two-ply yarns, one being a wool single and the other a Terylene yarn.
  • the mixed elements contain a 27 dTex carbon filament plied with the wool single, which in turn is plied with the Terylene single.
  • the orthogonal pattern of the grid formed by said plied yarns mixed with a carbon filament develops, in this case, rectangular meshes, having their larger side in the direction of the warp, rather than square meshes as in the preceding figures.
  • each single of the basic fiber may vary, in the case of wool, from 60 dTex to 250 dTex, whereas in the case of two or more-ply yarns, the yarn count may vary from 150 to 700 dTex, and in turn the carbon filament mixed to a single or plied yarn of the basic fiber(s) of the fabric preferably varies from 20 to 40 dTex.
  • the alternation ratio of the singles or the ply yarns mixed with a carbon filament may vary between 1 out of 2 and 1 out of 100,preferably within the range of from 1 out of 3 to 1 out of 70.
  • the inventive fabric acquires true and proper ecological features.

Claims (6)

  1. Un tissu composé pour fabriquer des articles de confection, en particulier des articles de vêtements, constitué par un tissu de base comprenant des fils de chaîne et de trame, toutefois insérés dans le motif de tissage, lesdits fils comportant un fil unique ou des fils à deux ou plusieurs épaisseurs de n'importe quel type de fibre naturelle ou synthétique, dans lequel sont insérés dans la chaîne et dans la trame du tissu de base, selon un rapport alterné préétabli, les fils uniques ou les fils à épaisseur formant dans ledit tissu de base une grille orthogonale analogue à un réseau, caractérisé en ce que les fils insérés sont constitués d'un filament de carbone unique ou par des fils à épaisseur qui sont au moins partiellement mélangés avec un filament de carbone, lesdits filaments de carbone ayant un total de fils dans la gamme de 20 à 70 dTex et en ce que les fils insérés sont insérés selon un rapport alterné de 1 sur 2 à 1 sur 100 dans la chaîne et dans la trame du tissu de base et en ce que ledit réseau constitue une protection contre le champ électrique induit par des courants alternatifs notamment dans la gamme de fréquence de 50 à 1000 Hz.
  2. Un tissu composé selon la revendication 1, caractérisé en ce que lesdits fils uniques ou à épaisseur qui sont au moins partiellement mélangés avec un filament de carbone sont insérés selon un rapport alterné de 1 sur 3 à 1 sur 70, à savoir un fil unique à épaisseur mélangé avec un filament de carbone à raison d'un pour deux à un pour soixante-neuf fils uniques ou à épaisseur de la fibre de base dont le tissu est réalisé, tandis que le filament de carbone a un total de fils dans la gamme de 20 à 40 dTex.
  3. Un tissu composé selon les revendications 1 et 2, caractérisé en ce que lesdits fils uniques ou à épaisseur qui sont au moins partiellement mélangés avec un filament de carbone sont insérés selon un rapport alterné qui est le même dans la chaîne et dans la trame du tissu de base.
  4. Un tissu composé selon les revendications 1 et 2, caractérisé en ce que lesdits fils uniques ou à épaisseur qui sont au moins partiellement mélangés avec un filament de carbone sont insérés selon un rapport alterné qui est différent dans la chaîne de celui de la trame du tissu de base.
  5. Un tissu composé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que le tissu de base comprend des fils uniques ou à épaisseur homogènes, naturels ou synthétiques ou il comprend deux fibres de fils ou plus à épaisseur de type différent tant dans la chaîne que dans la trame où les fils uniques ou à épaisseur sont insérés, les fils uniques ou à épaisseur étant mélangés avec un filament de carbone.
  6. Un tissu composé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que dans le cas d'un tissu de base en laine, les brins de laine ont un total de fils de 60 à 250 dTex tandis que les fils à épaisseur de laine ont un total de fils de 150 à 700 dTex.
EP94105300A 1993-05-10 1994-04-06 Tissu composite fait de fils simples ou câblés de fibres textiles conventionnels entrelacés, selon un dessin rectangulaire avec des fils simples ou câblés qui sont au moins partiellement mélangés avec des filaments de carbone, ayant des propriétés protectrices contre les champs électriques Expired - Lifetime EP0624669B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI930939 1993-05-10
IT93MI000939A IT1264402B1 (it) 1993-05-10 1993-05-10 Tessuto composito formato da filati semplici o filati ritorti di fibre tessili convenzionali intercalati a guisa di reticolo da filati

Publications (2)

Publication Number Publication Date
EP0624669A1 EP0624669A1 (fr) 1994-11-17
EP0624669B1 true EP0624669B1 (fr) 1997-05-21

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EP94105300A Expired - Lifetime EP0624669B1 (fr) 1993-05-10 1994-04-06 Tissu composite fait de fils simples ou câblés de fibres textiles conventionnels entrelacés, selon un dessin rectangulaire avec des fils simples ou câblés qui sont au moins partiellement mélangés avec des filaments de carbone, ayant des propriétés protectrices contre les champs électriques

Country Status (6)

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EP (1) EP0624669B1 (fr)
JP (1) JPH06322638A (fr)
DE (1) DE69403274T2 (fr)
ES (1) ES2103515T3 (fr)
IL (1) IL105186A0 (fr)
IT (1) IT1264402B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1718889B (zh) * 2004-07-09 2010-06-09 上海利昂高科技有限公司 一种屏蔽电磁波织物及其制造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101818399B (zh) * 2010-05-11 2011-05-25 浙江理工大学 一种双色格子织物的色花排列方法
CN102409467B (zh) * 2011-09-27 2013-08-07 东华大学 一种交织与浮长镶嵌方格形电磁屏蔽机织物及其用途
IT202100010394A1 (it) * 2021-04-23 2022-10-23 Costa S R L Processo per la realizzazione di un tessuto base per un tessuto aderizzato e tessuto base

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606968A (en) * 1983-07-25 1986-08-19 Stern And Stern Textiles, Inc. Electrostatic dissipating fabric
WO1986003050A1 (fr) * 1984-11-13 1986-05-22 Raychem Corporation Tissu et article de blindage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1718889B (zh) * 2004-07-09 2010-06-09 上海利昂高科技有限公司 一种屏蔽电磁波织物及其制造方法

Also Published As

Publication number Publication date
ITMI930939A0 (it) 1993-05-10
ITMI930939A1 (it) 1994-11-10
DE69403274D1 (de) 1997-06-26
ES2103515T3 (es) 1997-09-16
DE69403274T2 (de) 1997-08-28
IT1264402B1 (it) 1996-09-23
IL105186A0 (en) 1993-07-08
EP0624669A1 (fr) 1994-11-17
JPH06322638A (ja) 1994-11-22

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