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Ply-twisted yarn for cut resistant fabrics

Info

Publication number
CA2500958A1
CA2500958A1 CA 2500958 CA2500958A CA2500958A1 CA 2500958 A1 CA2500958 A1 CA 2500958A1 CA 2500958 CA2500958 CA 2500958 CA 2500958 A CA2500958 A CA 2500958A CA 2500958 A1 CA2500958 A1 CA 2500958A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
yarn
ply
twisted
component
twist
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
CA 2500958
Other languages
French (fr)
Other versions
CA2500958C (en )
Inventor
Reiyao Zhu
Richard H. Young
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.)
E I du Pont de Nemours and Co
Original Assignee
E. I. Du Pont De Nemours And Company
Reiyao Zhu
Richard H. Young
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

Links

Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28Doubled, plied, or cabled threads
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • D02G3/442Cut or abrasion resistant yarns or threads

Abstract

A ply-twisted yarn useful in cut resistant fabrics is made by providing a first multifilament yarn of continuous organic filaments having a tensile strength of at least 4 grams per denier and having a twist in a first direction of from 0.5 to 10 turns per inch; providing a second yarn comprising 1 to 5 continuous inorganic filament(s); and ply-twisting the first yarn and the second yarn about each other 2 to 15 turns per inch in a second direction opposite to that of the twist in the first yarn to form a ply-twisted yarn having an overall effective twist of +/- 5 turns per inch.

Claims (11)

1. A process for making a cut-resistant ply-twisted yarn comprising:
a) providing a first multifilament yarn having a tensile strength of at least 4 grams per denier and comprising continuous organic filaments, said first yarn having a twist in a first direction of from 0.5 to 10 turns per inch;
b) providing a second yarn comprising 1 to 5 continuous inorganic filament(s); and c) ply-twisting the first yarn and the second yarn about each other 2 to 15 turns per inch in a second direction opposite to that of the twist in the first yarn to form a ply-twisted yarn having an overall effective twist of +/-turns per inch.
2. The process of claim 1 wherein the first yarn comprises aramid filaments and the second yarn comprises steel filament(s).
3. A cut-resistant ply-twisted yarn comprising:
a) a first multifilament yarn having a tensile strength of at least 4 grams per denier and comprising continuous organic filaments, said first yarn having twist in a first direction of from 0.5 to 10 turns per inch;
b) a second yarn comprising 1 to 5 continuous inorganic filament(s);
and c) the first yarn and the second yarn having a ply-twist about each other of 2 to 15 turns per inch in a second direction opposite to that of the twist in the first yarn, said cut-resistant ply-twisted having an overall effective twist of +/-5 turns per inch.
4. The ply-twisted yarn of claim 3 wherein the first yarn comprises aramid filaments.
5. The ply-twisted yarn of Claim 3 wherein the first yarn of the cut-resistant yarn component comprises poly (p-phenylene terephthalamide) filaments.
6. The ply-twisted yarn of claim 3 wherein the inorganic filaments comprise steel filament(s).
7. A woven fabric useful in protective apparel made from yarn components comprising:
a body fabric yarn component, a cut-resistant yarn component comprising a ply-twisted yarn comprising a first multifilament yarn having a tensile strength of at least 4 grams per denier and comprising continuous organic filaments, and a second yarn comprising 1 to 5 continuous inorganic filament(s); said ply-twisted yarn having an overall effective twist of +/- 5 turns per inch, the body fabric yarn component and the cut-resistant yarn component each being comprised of at least one yarn and each yarn component distinguished from the adjacent yarn component by interweaving orthogonal yarn components.
8. A woven fabric useful in protective apparel made from yarn components comprising:
a) a body fabric yarn component, b) a cut-resistant yarn component comprising a ply-twisted yarn comprising a first multifilament yarn comprising continuous organic filaments, and a second yarn comprising 1 to 5 continuous inorganic filament(s); said ply-twisted yarn having a positive overall effective twist , the body fabric yarn component and the cut-resistant yarn component being comprised of individual warp and fill yarns in the fabric, and wherein every fifth to ninth orthogonal warp and/or fill yarn component is a cut-resistant yarn component.
9. A process for making a woven fabric useful in protective apparel made from warp and fill yarn components comprising:

a) weaving a fabric from a body fabric yarn component, and b) inserting into the weave at every fifth to ninth warp and fill component a cut-resistant yarn component comprising a ply-twisted yarn comprising a first multifilament yarn comprising continuous organic filaments, and a second yarn comprising 1 to 5 continuous inorganic filament(s); said ply-twisted yarn having a positive overall effective twist.
10. A process for making a woven fabric useful in protective apparel made from warp and fill yarn components comprising:
a) weaving a fabric from a body fabric yarn component, and b) inserting into the weave at every fifth to ninth warp or fill component a cut-resistant yarn component to create an array of cut resistant yarn components, each component comprising a ply-twisted yarn comprising a first multifilament yarn comprising continuous organic filaments, and a second yarn comprising 1 to 5 continuous inorganic filament(s); said ply-twisted yarn having a positive overall effective twist.
11. A firefighting garment containing a cut-resistant ply-twisted yarn comprising:
a) a first multifilament yarn having a tensile strength of at least 4 grams per denier and comprising continuous organic filaments, said first yarn having twist in a first direction of from 0.5 to 10 turns per inch;
b) a second yarn comprising 1 to 5 continuous inorganic filament(s); and c) the first yarn and the second yarn having a ply-twist about each other of 2 to 15 turns per inch in a second direction opposite to that of the twist in the first yarn, said cut-resistant ply-twisted having an overall effective twist of +/-5 turns per inch.
CA 2500958 2002-10-03 2003-10-01 Ply-twisted yarn for cut resistant fabrics Expired - Fee Related CA2500958C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/264,006 2002-10-03
US10264006 US7127879B2 (en) 2002-10-03 2002-10-03 Ply-twisted yarn for cut resistant fabrics
PCT/US2003/031673 WO2004031462A1 (en) 2002-10-03 2003-10-01 Ply-twisted yarn for cut resistant fabrics

Publications (2)

Publication Number Publication Date
CA2500958A1 true true CA2500958A1 (en) 2004-04-15
CA2500958C CA2500958C (en) 2012-05-22

Family

ID=32042126

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2500958 Expired - Fee Related CA2500958C (en) 2002-10-03 2003-10-01 Ply-twisted yarn for cut resistant fabrics

Country Status (8)

Country Link
US (1) US7127879B2 (en)
JP (1) JP4594095B2 (en)
KR (1) KR101082222B1 (en)
CN (1) CN1703545B (en)
CA (1) CA2500958C (en)
DE (1) DE60333767D1 (en)
EP (1) EP1546442B1 (en)
WO (1) WO2004031462A1 (en)

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Also Published As

Publication number Publication date Type
JP4594095B2 (en) 2010-12-08 grant
US7127879B2 (en) 2006-10-31 grant
EP1546442B1 (en) 2010-08-11 grant
KR20050054989A (en) 2005-06-10 application
JP2006502315A (en) 2006-01-19 application
CA2500958C (en) 2012-05-22 grant
DE60333767D1 (en) 2010-09-23 grant
KR101082222B1 (en) 2011-11-09 grant
EP1546442A1 (en) 2005-06-29 application
US20040065072A1 (en) 2004-04-08 application
CN1703545B (en) 2010-06-16 grant
WO2004031462A1 (en) 2004-04-15 application
CN1703545A (en) 2005-11-30 application

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Effective date: 20171002