GB1487674A – Bulked composite elastic yarn
– Google Patents
GB1487674A – Bulked composite elastic yarn
– Google Patents
Bulked composite elastic yarn
Info
Publication number
GB1487674A
GB1487674A
GB36479/75A
GB3647975A
GB1487674A
GB 1487674 A
GB1487674 A
GB 1487674A
GB 36479/75 A
GB36479/75 A
GB 36479/75A
GB 3647975 A
GB3647975 A
GB 3647975A
GB 1487674 A
GB1487674 A
GB 1487674A
Authority
GB
United Kingdom
Prior art keywords
yarn
filaments
elastic
composite
elastic yarn
Prior art date
1974-09-05
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
Application number
GB36479/75A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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.)
1974-09-05
Filing date
1975-09-04
Publication date
1977-10-05
1975-09-04
Application filed by EI Du Pont de Nemours and Co
filed
Critical
EI Du Pont de Nemours and Co
1977-10-05
Publication of GB1487674A
publication
Critical
patent/GB1487674A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
D—TEXTILES; PAPER
D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
D04B—KNITTING
D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
D04B21/18—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic 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
D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
D—TEXTILES; PAPER
D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
D04B—KNITTING
D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
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
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S57/00—Textiles: spinning, twisting, and twining
Y10S57/905—Bicomponent material
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
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S57/00—Textiles: spinning, twisting, and twining
Y10S57/908—Jet interlaced or intermingled
Abstract
1487674 Bulked composite yarn; knitting E I DU PONT DE NEMOURS & CO 4 Sept 1975 [5 Sept 1974] 36471/75 Headings D1F, D1K and D1W A composite yarn comprises one or more uncrimped elastic yarns 1 and at least 5 synthetic continuous filaments 20 of relatively inelastic material to protect the elastic yarn(s), the relaxed composite yarn being bulky, having the elastic yarn(s) straight and being capable of being extended at least 100% when stretched until the elastic yarn(s) first become load-bearing the stretched yarn having the relatively inelastic filaments 20 entangled tightly around the elastic yarn(s) 1 in intermittent zones of random braid-like structure and otherwise extending substantially parallel to the elastic yarn, there being an average entanglement spacing of less than 10 cm and the filaments 20 being substantially free of crunoidal or other surface loops when the yarn is in said stretched condition. The composite yarn is produced by continuously feeding elastic yarn 1 and continuous filaments 5 through a fluid bulker 9 in which at least one fluid jet impinges on the yarn at an angle of 90‹ Œ 45‹ to separate the filaments and entangle them around yarn 1, yarn 1 being fed under tension sufficient to extend it at least 100% over its relaxed length and filaments 20 being fed at 0 Œ 2% overfeed. Manual and automatic methods for determining the average entanglement separation are described. The elastic yarn is preferably spandex. In examples 3 and 4 two such yarns are used and parts of the filaments are caused to pass between the two spandex yarns. In examples 1 and 2 a coalesced multifilament spandex yarn is used. The elastic yarn is fed at up to 12.2 m. per second and combined with the inelastic filaments whilst stretched 400%. The filaments may be of nylon, polyester, polypropylene cellulose acetate or regenerated cellulose. They may show crimp when relaxed, due to false twisting or to the use of bicomponent filaments. The filaments may be of different types e.g. nylon and cellulose acetate, or untextured high potential shrinkage polyester and textured nylon so that on shrinkage the polyester filaments are load bearing. The bundle of filaments supplied has no more than producer’s twist. The entanglement fluid is ambient temperature air. The resultant composite yarn has substantially zero unidirectional torque. Fabrics The yarn may be used in woven fabrics, circular knit fabrics or stretch warpknit fabrics made on tricot or raschel machines, composite yarns 10, Fig. 6 may be knit on the front or back bar and nylon yarns 25 on the other bar. Loops 23 protrude from the composite yarn and partially obscure openings 26. A fine surface is achieved when the inelastic filaments are textured and a loop-pile surface when they are non-textured. When the inelastic filaments are bicomponent and thus of high shrinkage or latent crimp a more compacted nap is formed (Fig. 7 not shown). The composite yarn can be intermittently knit and laid in e.g. knit on one course and laid in on one or more courses before repeating the knit course. Yarn tension apparatus (Fig. 9, not shown) is described for estimating the delivery tension in the yarn as it is unwound from a package and delivered to knitting machine, and the residual tension in the yarn as knitting is stopped. These tensions should be less than 5 and 4 grams respectively.
GB36479/75A
1974-09-05
1975-09-04
Bulked composite elastic yarn
Expired
GB1487674A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US05/503,500
US3940917A
(en)
1974-09-05
1974-09-05
Composite elastic yarns and process for producing them
Publications (1)
Publication Number
Publication Date
GB1487674A
true
GB1487674A
(en)
1977-10-05
Family
ID=24002349
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB36479/75A
Expired
GB1487674A
(en)
1974-09-05
1975-09-04
Bulked composite elastic yarn
Country Status (12)
Country
Link
US
(1)
US3940917A
(en)
JP
(1)
JPS51136951A
(en)
AR
(1)
AR210090A1
(en)
BE
(1)
BE833073A
(en)
CA
(1)
CA1040404A
(en)
DE
(1)
DE2539668C3
(en)
FR
(1)
FR2283968A1
(en)
GB
(1)
GB1487674A
(en)
IE
(1)
IE43303B1
(en)
IT
(1)
IT1054904B
(en)
LU
(1)
LU73331A1
(en)
NL
(1)
NL178985C
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN115803488A
(en)
*
2020-06-15
2023-03-14
东丽纤维研究所(中国)有限公司
Knitted fabric and use thereof
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1961-12-19
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Process for making elastic bulky composite yarn
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US
US05/503,500
patent/US3940917A/en
not_active
Expired – Lifetime
1975
1975-09-03
JP
JP50106119A
patent/JPS51136951A/en
active
Pending
1975-09-03
CA
CA235,017A
patent/CA1040404A/en
not_active
Expired
1975-09-04
NL
NLAANVRAGE7510451,A
patent/NL178985C/en
not_active
IP Right Cessation
1975-09-04
AR
AR260274A
patent/AR210090A1/en
active
1975-09-04
IE
IE1941/75A
patent/IE43303B1/en
unknown
1975-09-04
IT
IT26915/75A
patent/IT1054904B/en
active
1975-09-04
BE
BE159744A
patent/BE833073A/en
not_active
IP Right Cessation
1975-09-04
GB
GB36479/75A
patent/GB1487674A/en
not_active
Expired
1975-09-04
FR
FR7527120A
patent/FR2283968A1/en
active
Granted
1975-09-04
LU
LU73331A
patent/LU73331A1/xx
unknown
1975-09-05
DE
DE2539668A
patent/DE2539668C3/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN115803488A
(en)
*
2020-06-15
2023-03-14
东丽纤维研究所(中国)有限公司
Knitted fabric and use thereof
Also Published As
Publication number
Publication date
DE2539668C3
(en)
1978-10-12
FR2283968B1
(en)
1978-04-07
DE2539668A1
(en)
1976-04-01
CA1040404A
(en)
1978-10-17
NL178985C
(en)
1986-06-16
NL178985B
(en)
1986-01-16
DE2539668B2
(en)
1978-02-16
BE833073A
(en)
1976-03-04
IE43303L
(en)
1976-03-05
NL7510451A
(en)
1976-03-09
AR210090A1
(en)
1977-06-30
US3940917A
(en)
1976-03-02
IE43303B1
(en)
1981-01-28
LU73331A1
(en)
1976-04-13
FR2283968A1
(en)
1976-04-02
IT1054904B
(en)
1981-11-30
JPS51136951A
(en)
1976-11-26
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Legal Events
Date
Code
Title
Description
1978-02-15
PS
Patent sealed [section 19, patents act 1949]
1995-10-04
PE20
Patent expired after termination of 20 years
Effective date:
19950903