EP0187686A2 - Elastischer Gummifaden, der mit einem oder mehreren Fäden umwickelt ist und eine eingeschränkte und begrenzte Elastizität aufweist sowie Verfahren und Vorrichtung zu seiner Herstellung - Google Patents

Elastischer Gummifaden, der mit einem oder mehreren Fäden umwickelt ist und eine eingeschränkte und begrenzte Elastizität aufweist sowie Verfahren und Vorrichtung zu seiner Herstellung Download PDF

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Publication number
EP0187686A2
EP0187686A2 EP86200005A EP86200005A EP0187686A2 EP 0187686 A2 EP0187686 A2 EP 0187686A2 EP 86200005 A EP86200005 A EP 86200005A EP 86200005 A EP86200005 A EP 86200005A EP 0187686 A2 EP0187686 A2 EP 0187686A2
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EP
European Patent Office
Prior art keywords
inelastic
yarns
threads
elastic
semirigid
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Withdrawn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
EP86200005A
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English (en)
French (fr)
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EP0187686A3 (de
Inventor
Vittoria Cherio
Giuseppe Mignone
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0187686A2 publication Critical patent/EP0187686A2/de
Publication of EP0187686A3 publication Critical patent/EP0187686A3/de
Withdrawn legal-status Critical Current

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    • 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
    • D02G3/322—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic using hollow spindles

Definitions

  • the present invention relates to a rubber thread covered with one or more windings, receiving a controlled and limited elasticity by inserting one or more inelastic, semirigid or texturized yarns parallel to the elastic thread, as well as the method and the apparatus adapted to carry out production of such an elastic thread with controlled and limited elasticity.
  • the .term rubber in this context means any elastic thread of natural, artificial or synthetic origin.
  • the present invention removes these drawbacks and solves this widely felt problem by inserting, during the operation of covering the thread with the coils of inelastic yarn, one or more inelastic, semirigid or texturized yarns parallel to the stretched rubber thread, so that once the rubber thread is released, it can be extended in use only by the amount determinated by the length of the inelastic or texturized yarns.
  • the apparatus allowing to carry out this controlled coupling of elastic thread and inelastic or texturized yarns, consists of a coiling machine, suitably modified by the addition of means for inserting one or more inelastic, semirigid or texturized yarns parallel to the elastic thread during the coiling operation, and of means for giving a predetermined stretch to the elastic thread during said coiling operation.
  • a stretched inelastic, semirigid or texturized yarn is laid parallel to one or more tensioned rubber threads.
  • Texturization confers particular features to an inelastic yarn, namely an original predetermined fixed elongation and a recovery caused by said texturization, called also stretch or elasticization.
  • the inelastic, semirigid or texturized yarn may be laid parallel to the stretched rubber thread or threads in several ways, namely:
  • inelastic, semirigid or texturized yarn is laid as indicated at point (b) above, viz. before the last winding, a considerable advantage is gained, namely the inelastic, semirigid or texturized yarn is caught only by the last winding and therefore has more space to bend or curl, giving rise to many loops longer than those obtained with the system indicates at point (a) above.
  • This greater freedom to bend and curl turns into lower friction and braking on return of the elastic thread in comparison with the system indicated at point (a).
  • the looser loops facilitate also the thread tensioning with time and energy saving.
  • the inelastic or texturized yarn may comprise several filaments, of different materials and colours, and this may make easier distinction of the various lots of the products or merely for decoration of the finished product.
  • inelastic or texturized yarns are laid in the manner indicate at point (c), namely one inelastic or texturized yarn of different colour and material under each winding effected, one obtains the advantage of having colour shades and higher resistance to tensile stress.
  • the present invention facilitates and attains regularity of tension of the elastic thread and therefore uniformity of the finished textile product, i.e. it allows to work with an elastic thread having a very wide recovery capacity or extensibility, as if said elastic thread would not exist, since the loom works on tension of the inelastic yarns.
  • the present invention is adapte to be used without difficulty either on the Raschel looms or on shuttle looms, as well as on circular knitting machines or any other binding machine.
  • the thread so formed according to the present invention in addition to avoiding strangulation, prevents also yielding of the rubber threads, which would give rise to permanent deformation.
  • the thread, the one elastic and the other inelastic, being of different materials and characteristics, give rise to a thread taking joint advantage of the characteristics of each thread or yarn, said thread being versatile and finding use in making wearing apparel, i.e. opening up the road for using the soft elastic thread, in view of its controlled elasticity.
  • Coiling machines are generally arranged in banks and each unit consists of two superposed coil forming groups, one group making the coil or winding around an elastic thread in one direction of rotation, and the other group making the coil or winding in the opposite direction of rotation.
  • each group is supported by a rigid frame 1 on which a hollow shaft 2 is fixed and preferably screwed, on which by means of ball bearings a rotary holder 3 is mounted, that is being rotated through a driving belt 4 driven by a suitable motor (not shown).
  • a bobbin 5 is then applied, bearing the feed of inelastic yarn for making the covering coils.
  • the assembly consisting of the hollow shaft 2, the rotary holder 3 and the bobbin 5 forms the spindle, and therefore for each elastic thread to be covered there are two superposed spindles, one rotating in the S-twist direction of rotation and the other in the opposite Z-twist direction of rotation, the order of the two directions being indifferent.
  • the rubber elastic thread E to be covered comes from a feeder consisting of several rollers 6 and combs 7, where the rubber thread E coming from a ribbon is divided into individual threads, each to be delivered to a coiling unit; this individual rubber thread E is wound with some turns on a first pulley 8, then inserted in the axial hole of the hollow shaft 2, then crosses the first spindle 5 and at its outlet receives the first covering R 1 of coils of inelastic yarns unwound from bobbin 5 of the first spindle 5.
  • the rubber thread E now provided with the first covering R, passes through the second spindle Z, arranged at a suitable distance above the first spindle 5, and rotating in the opposite direction thereto.
  • the rubber thread E receives the second covering R 2 of coils of inelastic yarn unwound from bobbin 5 of the second spindle Z, and then it is wound with some turns on a second pulley 9, rotating at a speed which is slightly higher than that of the first pulley 8, so that this speed difference causes a certain elongation or tension of the elastic thread E during the covering operation.
  • the elastic rubber thread E may consist of one, two or more parallel threads, and also the inelastic, semirigid or texturized yarn A may in turn consist of one, two or more parallel inelastic yarns, and also the number of yarns forming each of the coils R 1 and R 2 may be varied, and more particularly the coils R 1 and R 2 may each consist of the same or different number of inelastic yarns.
  • the winding may also be single and in this case the coiling machine would obviously have only one spindle.
  • FIG. 1-4 Two first embodiments of threads made according to the above indicated system (a), i.e. coupling an inelastic, semirigid or texturized yarn A laid before any coiling operation, are shown in Figs. 1-4 in the relaxed condition, where the elastic thread 4 causes creases and curls Ap of the inelastic, semirigid or texturized parallel coupled yarn A l , and in the tensioned condition of use, where the maximum elongation is determined by the maximum stretched length of the coupled inelastic, semirigid or texturized yarn A 1 .
  • FIG. 5-8 Two other embodiments of threads made according to the above indicated system (b), i.e. coupling an inelastic, semirigid or texturized yarn A laid before the last coiling operation, are shown in Figs. 5-8 in the relaxed condition, where the elastic thread E causes loops A n of the inelastic, semirigid or texturized parallel coupled yarn A 2 , and in the tensioned condition of use, where the maximum elongation is determined by the maximum stretched length of the coupled inelastic, semirigid or texturized yarn A 2 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Ropes Or Cables (AREA)
EP86200005A 1985-01-11 1986-01-04 Elastischer Gummifaden, der mit einem oder mehreren Fäden umwickelt ist und eine eingeschränkte und begrenzte Elastizität aufweist sowie Verfahren und Vorrichtung zu seiner Herstellung Withdrawn EP0187686A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT19091/85A IT1183117B (it) 1985-01-11 1985-01-11 Filo di gomma ricoperto con una o piu'spiralature ad elasticita'controllata e limitata, nonche' metodo ed apparecchio per la sua produzione
IT1909185 1985-01-11

Publications (2)

Publication Number Publication Date
EP0187686A2 true EP0187686A2 (de) 1986-07-16
EP0187686A3 EP0187686A3 (de) 1987-08-05

Family

ID=11154452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200005A Withdrawn EP0187686A3 (de) 1985-01-11 1986-01-04 Elastischer Gummifaden, der mit einem oder mehreren Fäden umwickelt ist und eine eingeschränkte und begrenzte Elastizität aufweist sowie Verfahren und Vorrichtung zu seiner Herstellung

Country Status (3)

Country Link
EP (1) EP0187686A3 (de)
JP (1) JPS61207634A (de)
IT (1) IT1183117B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0914505A4 (de) * 1995-10-05 1999-05-12
EP0920982A1 (de) * 1997-12-05 1999-06-09 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Presspolster
GB2446866A (en) * 2007-02-21 2008-08-27 Wykes Internat Ltd Cut resistant yarn
EP2946032A4 (de) * 2013-01-16 2016-08-03 INVISTA Technologies S à r l Elastische garne und stoffe mit mehreren elastischen garnen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072775A (en) * 1936-02-25 1937-03-02 Frank W Gorse Company Elastic yarn and fabric
DE1122205B (de) * 1959-06-20 1962-01-18 Julius Boos Jr G M B H Elastischer Faden zur Herstellung von Textilbahnen
FR1428933A (fr) * 1965-03-25 1966-02-18 Monsanto Co Fil élastique à enrobant simple
US3301018A (en) * 1965-01-26 1967-01-31 Kendall & Co Elastic yarn and garment incorporating it
FR2031797A5 (en) * 1969-02-07 1970-11-20 Manuf Fse Fils Elastique Composite elastic yarn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072775A (en) * 1936-02-25 1937-03-02 Frank W Gorse Company Elastic yarn and fabric
DE1122205B (de) * 1959-06-20 1962-01-18 Julius Boos Jr G M B H Elastischer Faden zur Herstellung von Textilbahnen
US3301018A (en) * 1965-01-26 1967-01-31 Kendall & Co Elastic yarn and garment incorporating it
FR1428933A (fr) * 1965-03-25 1966-02-18 Monsanto Co Fil élastique à enrobant simple
FR2031797A5 (en) * 1969-02-07 1970-11-20 Manuf Fse Fils Elastique Composite elastic yarn

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0914505A4 (de) * 1995-10-05 1999-05-12
EP0914505A1 (de) * 1995-10-05 1999-05-12 North American Rubber Thread Company, Inc. Gummifaden
EP0920982A1 (de) * 1997-12-05 1999-06-09 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Presspolster
GB2446866A (en) * 2007-02-21 2008-08-27 Wykes Internat Ltd Cut resistant yarn
EP2946032A4 (de) * 2013-01-16 2016-08-03 INVISTA Technologies S à r l Elastische garne und stoffe mit mehreren elastischen garnen
CN112410964A (zh) * 2013-01-16 2021-02-26 服饰与高级纺织英国有限公司 具有多种弹性纱线的拉伸纱线和织物

Also Published As

Publication number Publication date
JPS61207634A (ja) 1986-09-16
EP0187686A3 (de) 1987-08-05
IT8519091A0 (it) 1985-01-11
IT1183117B (it) 1987-10-05

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