EP1964952A1 - Garn für technische Fasern und Verfahren zu seiner Herstellung - Google Patents

Garn für technische Fasern und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP1964952A1
EP1964952A1 EP08151814A EP08151814A EP1964952A1 EP 1964952 A1 EP1964952 A1 EP 1964952A1 EP 08151814 A EP08151814 A EP 08151814A EP 08151814 A EP08151814 A EP 08151814A EP 1964952 A1 EP1964952 A1 EP 1964952A1
Authority
EP
European Patent Office
Prior art keywords
thread
yarn
cover
filament
yarn 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.)
Granted
Application number
EP08151814A
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English (en)
French (fr)
Other versions
EP1964952A8 (de
EP1964952B1 (de
Inventor
Sergio Carrara
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.)
Filtes International Srl
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Filtes International Srl
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 Filtes International Srl filed Critical Filtes International Srl
Publication of EP1964952A1 publication Critical patent/EP1964952A1/de
Publication of EP1964952A8 publication Critical patent/EP1964952A8/de
Application granted granted Critical
Publication of EP1964952B1 publication Critical patent/EP1964952B1/de
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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
    • D02G3/442—Cut or abrasion resistant 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
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn

Definitions

  • the present invention relates to a yarn for protective fabrics, i.e. a yarn having high wear resistance mechanical properties, usually called a "technical" yarn in the field, which is suitable for making fabrics for manufacturing work gloves and other safety garments.
  • US 4.777.789 illustrates a yarn consisting of an inner core made of a monofilament or multifilament, such as of glassfiber, on which an inner thread is wound, for example made of stainless steel.
  • the core and the inner thread are covered by a first thread wound in a first winding direction, which forms a first covering layer; the first covering layer is covered by a second thread wound in a second winding direction, which forms a second covering layer.
  • the first wound thread and the second wound thread are made of, for example, aramide resin.
  • US 4,202,382 , US 3,726,078 , EP-A2-0125505 , US 4,470,251 , US 4,158,946 , US 3,336,744 further illustrate other types of yarns.
  • the object of the present invention is to provide a novel type of yarn, having high mechanical characteristics, even more suitable to make technical fabrics as compared with known yarns, especially for protective garments.
  • the yarn being the object of the present invention exhibits a high cut strength and a high workability during garment weaving.
  • Fig. 1 to 5 illustrate variant embodiments of a yarn according to the present invention.
  • Fig. 6 illustrates a garment made by means of the yarn of the present invention, for example, a glove.
  • a yarn comprising a core consisting of a continuous filament 2.
  • the continuous filament 2 consists of a monofilament, such as made of glass or an elastic material, for example Lycra®, extending along a filament axis X.
  • the filament 2 has linear density of 110 dtex.
  • the yarn 1 further comprises a first thread 4, wound around the continuous filament 2, such as to provide a first covering of the latter, in contact with the outer surface of the filament.
  • the first thread 4 is wound around the filament 2 in a first winding direction and with an inclination relative to the filament axis X.
  • the first thread is wound on the filament such as to obtain 500 coils along one linear meter of filament.
  • the first thread is a polyester or polyamide continuous filament.
  • the first thread 4 is further worked on the surface thereof such as to have a high roughness.
  • the first thread has a linear density ranging between 50 and 200 dtex, preferably of 110 dtex.
  • the first cover provides a continuous layer, which covers the filament 2, since the coils of the first thread 4 wound on the filament 2 are axially tangential relative to each other, such as to avoid leaving gaps therebetween, from which the underlying filament 2 may appear.
  • the first thread forms a closed coiling.
  • the yarn 1 further comprises a second thread 6 wound around the first cover, such as to provide a second cover thereon.
  • the second thread 6 is wound around the first cover in a second winding direction, opposite the first one.
  • the second thread has an inclination relative to the filament axis X opposite the first thread inclination.
  • the second thread is wound on the first cover such as to obtain 500 coils along a linear meter.
  • the second thread is a polyester or polyamide continuous filament.
  • the second thread 6 is further worked on the surface thereof such as to have a high roughness.
  • the second thread has a linear density ranging between 50 and 200 dtex, preferably of 110 dtex.
  • the linear density of the second thread is equal to the linear density of the first thread.
  • the second cover provides a continuous layer that covers the first cover because the coils of the second thread are axially tangential to each other, such as to avoid leaving gaps therebetween, from which the first underlying cover may appear.
  • the yarn 1 comprises a third thread 8, wound on the second cover.
  • the third thread 8 does not provide a continuous covering on the second cover, since the twisting is carried out such that a gap is left between the coils, in order to make the second underlying cover visible and accessible.
  • the third thread forms an open coiling, as it is wound on the covered thread.
  • the third thread has a twisting with a twist linear density between 100 and 200 per linear meter, preferably equal to 170 twists per linear meter.
  • the third thread 8 is wound around the second cover according to a twisting direction opposite that of the second thread.
  • the third thread is a high-tenacity yarn, for example with a tenacity ranging between 40 and 120 cN/tex, preferably of 70 cN/tex.
  • the third thread is made of a high-tenacity primary organic matrix (generally having tenacity values of 1.5 to 3.5 N/tex), coupled to further fibers.
  • a high-tenacity primary organic matrix generally having tenacity values of 1.5 to 3.5 N/tex
  • the third thread is made as a yarn, for example by means of ring spinning, from discontinuous polyethylene fibers and polyamide fibers, for example at the same or different weight ratio.
  • the third thread is made as a yarn from discontinuous Dyneema® fibers and polyamide.
  • Fig. 2 illustrates a further variant embodiment of the yarn according to the present invention.
  • the yarn 1 comprises a multifilament core, such as consisting of two filaments 2a, 2b, parallel to each other.
  • the core is covered by the first cover being the first thread 4, by the second cover formed being the second thread 6, and twisted along with the third thread 8.
  • Fig. 3 illustrates a further embodiment of the yarn according to the present invention.
  • the yarn 1 comprises a monofilament core, consisting of an individual filament 2, covered by the first cover being the first thread 4, which is, in turn, covered by the second cover being the second thread 6, on which a third thread 8a and a fourth thread 8b are twisted.
  • the fourth thread 8b has structural characteristics similar to those of third thread 8a.
  • the third thread 8a has a first twisting direction, such as opposite that of second thread 6, and the fourth thread 8b has a second twisting direction, equal to the first twisting direction.
  • the first cover is in direct contact with the yarn core; in other words, there are no intermediate threads between the glassfiber core and the first cover.
  • Fig. 4 illustrates a further embodiment of the yarn according to the present invention.
  • the yarn comprises a multifilament core, for example consisting of two continuous filaments 2a, 2b parallel to each other, on which a coupling thread 10 is twisted.
  • the coupling thread 10 is wound the first thread 4 of the first cover, on which is wound the second thread 6 of the second cover, on which are twisted the third thread 8a and the fourth thread 8b, or, in a further embodiment, an individual third thread 8.
  • Fig. 5 illustrates a further embodiment of the yarn according to the present invention.
  • the yarn comprises a monofilament core, consisting of an individual filament 2, on which the coupling thread 10 is twisted.
  • the coupling thread 10 On the coupling thread 10 is wound the first thread 4 of the first cover, on which is wound the second thread 6 of the second cover, on which is twisted the third thread 8, or, in a still further embodiment, the third thread 8a and the fourth thread 8b.
  • the third and/or the fourth thread comprises, besides a stiff yarn, for example from discontinuous polyethylene fibers and polyamide fibers, also a flexible yarn, for example a synthetic polyurethane fiber, for example lycra®.
  • the third thread is made as a yarn from discontinuous Dyneema® fibers and polyamide.
  • the yarn according to the present invention is particularly suitable to make technical fabrics for protective garments, such as a glove 100.
  • the yarn according to the present invention can be fabricated according to a fabrication method comprising the steps of:
  • the yarn according to the variant embodiment in Fig. 3 can be fabricated according to a fabrication method comprising the steps of:
  • the yarn according to the present invention has excellent mechanical characteristics and a high workability for fabricating technical fabrics.
  • the third thread overlapping with open coiling the second cover provides the yarn with a high cut strength, without depriving the fabric of the softness required to make a comfortable garment.
  • the fabric made of the yarn of the present invention has achieved level 5 cut resistance, and level 4 abrasion resistance.
  • the provision of a third thread twisted on the second cover increases the fabric softness.
  • this advantageous and unexpected effect is due to the fact that the third thread provides such a relief that, when the yarns are mutually engaged within the weft of a fabric, these are rested on each other at this relief. This increases the tendency of the yarn to flexibility and thus the fabric softness.
  • this advantageous and unexpected effect is due to a reduced contact surface between the weft yarns of a fabric, which is due to the provision of the third externally-twisted thread.
  • the provision of two threads twisted to the covered thread, in the same twisting direction provides the fabric with a particular cut strength and abrasion resistance, while maintaining the fabric softness.
  • the provision of the first and second covers provides the yarn with the desired strength for high-performing technical fabrics, while, by suitably selecting the materials, the fabric is sufficiently soft to provide a comfortable garment, or the mechanical properties can be changed as desired.
  • the first and/or second threads have a surface roughness suitable to create a good grip of the first cover to the glass filament and/or the second cover to the first cover.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP20080151814 2007-02-28 2008-02-22 Garn für technische Fasern und Verfahren zu seiner Herstellung Active EP1964952B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBS20070027 ITBS20070027A1 (it) 2007-02-28 2007-02-28 Filato per tessuti tecnici e metodo di fabbricazione

Publications (3)

Publication Number Publication Date
EP1964952A1 true EP1964952A1 (de) 2008-09-03
EP1964952A8 EP1964952A8 (de) 2008-10-29
EP1964952B1 EP1964952B1 (de) 2011-06-01

Family

ID=37890840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080151814 Active EP1964952B1 (de) 2007-02-28 2008-02-22 Garn für technische Fasern und Verfahren zu seiner Herstellung

Country Status (3)

Country Link
EP (1) EP1964952B1 (de)
ES (1) ES2366680T3 (de)
IT (1) ITBS20070027A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20120098A1 (it) * 2012-06-29 2013-12-30 Filtes Internat S R L Filato per indumenti di protezione, metodo per la sua realizzazione,indumento o tessuto
IT201700042999A1 (it) * 2017-04-19 2018-10-19 Filtes Int S R L Con Socio Unico Metodo di fabbricazione di un filato, filato e indumento

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336744A (en) 1964-10-28 1967-08-22 Trefileries Leon Bekaert S P R Reinforcing cord having two-filament core surrounded by six single filatment units
US3726078A (en) 1970-09-05 1973-04-10 Kobe Steel Ltd Steel cord and article including the same
US4158946A (en) 1977-07-07 1979-06-26 N. V. Bekaert S.A. Metal cord
US4202382A (en) 1978-06-13 1980-05-13 Scapa Dryers, Inc. Dryer felts
US4470251A (en) 1978-03-30 1984-09-11 Bettcher Industries, Inc. Knittable yarn and safety apparel made therewith
EP0125505A2 (de) 1983-05-16 1984-11-21 Akzo GmbH Verstärkungsseil aus Stahldrähten für elastomere Erzeugnisse
US4777789A (en) 1986-10-03 1988-10-18 Kolmes Nathaniel H Wire wrapped yarn for protective garments
US5845476A (en) 1997-06-04 1998-12-08 Kolmes; Nathaniel H. Composite yarn with fiberglass core
US6279305B1 (en) 1985-10-17 2001-08-28 Wells Lamont Industry Group, Inc. Knittable yarn and safety apparel
US6467251B1 (en) 2000-11-22 2002-10-22 Supreme Elastic Corporation Lightweight composite yarn
US20040148921A1 (en) 2001-08-24 2004-08-05 Jean Guevel Rupture resistant yarn in particular for producing garments
US6779330B1 (en) 2000-10-31 2004-08-24 World Fibers, Inc. Antimicrobial cut-resistant composite yarn and garments knitted or woven therefrom
US20050086924A1 (en) 2003-10-28 2005-04-28 Supreme Elastic Corporation Glass-wire core composite fiber and articles made therefrom

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336744A (en) 1964-10-28 1967-08-22 Trefileries Leon Bekaert S P R Reinforcing cord having two-filament core surrounded by six single filatment units
US3726078A (en) 1970-09-05 1973-04-10 Kobe Steel Ltd Steel cord and article including the same
US4158946A (en) 1977-07-07 1979-06-26 N. V. Bekaert S.A. Metal cord
US4470251A (en) 1978-03-30 1984-09-11 Bettcher Industries, Inc. Knittable yarn and safety apparel made therewith
US4202382A (en) 1978-06-13 1980-05-13 Scapa Dryers, Inc. Dryer felts
EP0125505A2 (de) 1983-05-16 1984-11-21 Akzo GmbH Verstärkungsseil aus Stahldrähten für elastomere Erzeugnisse
US6279305B1 (en) 1985-10-17 2001-08-28 Wells Lamont Industry Group, Inc. Knittable yarn and safety apparel
US4777789A (en) 1986-10-03 1988-10-18 Kolmes Nathaniel H Wire wrapped yarn for protective garments
US5845476A (en) 1997-06-04 1998-12-08 Kolmes; Nathaniel H. Composite yarn with fiberglass core
US6779330B1 (en) 2000-10-31 2004-08-24 World Fibers, Inc. Antimicrobial cut-resistant composite yarn and garments knitted or woven therefrom
US6467251B1 (en) 2000-11-22 2002-10-22 Supreme Elastic Corporation Lightweight composite yarn
US20040148921A1 (en) 2001-08-24 2004-08-05 Jean Guevel Rupture resistant yarn in particular for producing garments
US20050086924A1 (en) 2003-10-28 2005-04-28 Supreme Elastic Corporation Glass-wire core composite fiber and articles made therefrom

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20120098A1 (it) * 2012-06-29 2013-12-30 Filtes Internat S R L Filato per indumenti di protezione, metodo per la sua realizzazione,indumento o tessuto
EP2679108A1 (de) * 2012-06-29 2014-01-01 Filtes International S.r.l. Garn für Schutzkeidung, Herstellungsverfahren, Kleidung oder Gewebe
US9279198B2 (en) 2012-06-29 2016-03-08 Filtes International S.R.L. Yarns for protective garments and manufacturing methods thereof
IT201700042999A1 (it) * 2017-04-19 2018-10-19 Filtes Int S R L Con Socio Unico Metodo di fabbricazione di un filato, filato e indumento
WO2018193296A1 (en) * 2017-04-19 2018-10-25 FILTES INTERNATIONAL S.r.l. CON SOCIO UNICO Method of making a yarn, yarn and garnment

Also Published As

Publication number Publication date
ITBS20070027A1 (it) 2008-09-01
EP1964952A8 (de) 2008-10-29
ES2366680T3 (es) 2011-10-24
EP1964952B1 (de) 2011-06-01

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