EP1028182A1 - Verbundgarn und verfahren zur dessen herstellung - Google Patents

Verbundgarn und verfahren zur dessen herstellung Download PDF

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Publication number
EP1028182A1
EP1028182A1 EP00102785A EP00102785A EP1028182A1 EP 1028182 A1 EP1028182 A1 EP 1028182A1 EP 00102785 A EP00102785 A EP 00102785A EP 00102785 A EP00102785 A EP 00102785A EP 1028182 A1 EP1028182 A1 EP 1028182A1
Authority
EP
European Patent Office
Prior art keywords
fiber bundle
yarn
fluctuation
fine
fiber bundles
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Withdrawn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
EP00102785A
Other languages
English (en)
French (fr)
Inventor
Toshimitsu Musha
Yuki Nisshinbo Industries Inc. Niwa
Masaaki Nisshinbo Industries Inc. Isobe
Shigeo Nisshinbo Industries Inc. Horikoshi
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.)
Nisshinbo Holdings Inc
Original Assignee
Nisshinbo Industries Inc
Nisshin Spinning Co Ltd
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 Nisshinbo Industries Inc, Nisshin Spinning Co Ltd filed Critical Nisshinbo Industries Inc
Publication of EP1028182A1 publication Critical patent/EP1028182A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/36—Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
    • 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
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns

Definitions

  • the present invention relates to a composite yarn and a method of manufacturing same.
  • the object underlying the present invention is to provide grandrelle-like yarns with natural patterns creating the feel of some handmade material.
  • a further object of the present invention is to provide a method of manufacturing such a yarn.
  • a composite yarn comprising two fiber bundles of short fibers which are drafted into a fine spun twisted union yarn, wherein one of the fiber bundles appears and disappears alternately on the periphery of the fine spun twisted union yarn along the length of the yarn, and the respective length of an appearing part or a disappearing part varies according to a 1/f fluctuation.
  • a method of manufacturing a composite yarn in a fine spinning process in which two fiber bundles of short fibers are drafted into a fine spun twisted union yarn by using a fine spinning machine, wherein the feed rate of one fiber bundle is varied by a 1/f fluctuation and the one fiber bundle is twisted with the other fiber bundle.
  • a method of manufacturing a composite yarn in a fine spinning process in which two fiber bundles of short fibers are drafted into a fine spun twisted union yarn by using a fine spinning machine, wherein the feed rate of at least one fiber bundle is divided into two stages, namely a high feed-rate stage and a low feed-rate stage, wherein the feed rate in one stage is varied by the time pitch of a 1/f fluctuation, and the one fiber bundle is twisted with the other fiber bundle.
  • the object is solved in an advantageous and satisfying manner.
  • the yarn creating the feel of some handmade material can readily be manufactured at an industrial scale.
  • a fine spinning machine is a suitable apparatus which can produce a composite yarn from two fiber bundles of roving.
  • the machine drafts a first roving 311 and a second roving 312 in a draft section 1, feeds a first fiber bundle 321 of the roving 311 and a second fiber bundle 322 of the second roving 312, respectively, to front rollers 131 and 132, spins and twists them into a fine spun twisted union yarn 33 by means of a spindle section 4, and winds the obtained yarn 33 on a bobbin 34.
  • the draft section 1 comprises the following components: a back roller 11, a back top roller 11T, a middle roller portion comprising a middle roller or an apron 12 and a middle top roller or a top apron 12T, front rollers 131 and 132, as well as front top rollers 131T and 132T.
  • the pairs of rollers 131 and 131T on the one hand and 132 and 132T on the other hand are mounted one beside the other and are driven by independent driving sources as explained in more detail below.
  • any of the following short fibers or their combinations can be used: natural fibers such as cotton, hemp, silk, and wool; regenerated fibers such as rayon, cupra, and high-strength regenerated cellulose fibers, for example a material available under the tradename "Tencell”; and synthetic fibers such as nylon and polyester, and for the two fiber bundles of roving, the short fibers or their combinations having different colors or having different dyeing property can be used, and the color of each fiber can be its original color or a dyed color.
  • the front rollers 131 and 132 are so designed and adapted as to draft fiber bundles, and they are driven and controlled independently of each other. As shown in Fig. 1, the front rollers 131 and 132 are provided, for example, with front top rollers 131T and 132T attached to and pressing against them. The front rollers 131 and 132 are driven independently of each other by a first motor M 231 and a second motor M 232, wherein the respective front top rollers 131T and 132T follow them.
  • the motors M 231 and M 232 are respectively controlled by controllers 221 and 222. Also, the controllers 221 and 222 are connected to a generator 21 providing a 1/f fluctuation signal. Hence, the controllers 221 and 222 are adapted to drive the motors at a normal constant speed or at a modified speed varying by a 1/f fluctuation.
  • the controllers 221 and 222 are adapted to perform control, for example in such a way that the fiber bundle from the one roving is fed with a speed corresponding to the 1/f fluctuation signal, while the fiber bundle from the other roving is fed at a normal constant speed or standard speed.
  • a fine spun twisted union yarn 33 with a 1/f fluctuation is produced.
  • 1/f fluctuation is defined and understood as a power spectrum, with a frequency component f , which is proportional to 1/f k , wherein k is approximately 1, and as a power spectrum which is similar to the above.
  • a 1/f fluctuation signal is of the type wherein, when its power spectrum is analysed in a time series, the intensity is almost inversely proportional to the frequency f or directly proportional to 1/f.
  • Such a 1/f fluctuation signal corresponds to fluctuations in the basic rhythm of a human body, such as heart beats, and the application of 1/f fluctuation signals makes it possible to produce grandrelle-like patterns and materials which create a sense of handmade unevenness.
  • Such a 1/f fluctuation signal can be determined from a numerical sequence, which in turn is obtained by performing arithmetic operations on a random number sequence with a predetermined number of coefficients. Also, it can be prepared by a well-known method using a computer or the like (see, for example Japanese Patent Laid-Open No. 7-243137).
  • two fiber bundles having different colors from the rovings 311 and 312 are supplied and pass through a normal back roller 11 with associated back top roller 11T and a middle roller 12 with associated middle top roller 12T, or corresponding aprons. Then, two corresponding fiber bundles 321 and 322 are fed to front rollers 131 and 132, that operate independently of each other, and to front top roller 131T and 132T that follow the respective front rollers 131 and 132.
  • the one fiber bundle is drafted with its feed rate varied by a 1/f fluctuation while the other fiber bundle is fed at a constant feed rate.
  • a 1/f fluctuation the surface speed of the front roller 132 is varied by a 1/f fluctuation, while the surface speed of the front roller 131 is kept at a constant feed rate of Vo.
  • the 1/f fluctuation signal is set to change, for example, within a variable range of the predetermined feed rate, for example between 1.00 and 1.25.
  • the fiber bundles 321 and 322 are fed at the same speed; hence, they appear at almost equal intervals when twisted with each other, as shown for example in Fig. 2(B).
  • the fiber bundle 322 becomes thinner and longer than the fiber bundle 321.
  • the fiber bundle 322 is exposed when winding itself around the periphery of the produced fine spun twisted union yarn 33, as shown for example in Fig. 2(C).
  • the speed difference between the front roller 131 and the front roller 132 is zero in portion L and is at maximum in portion M , where control is performed without changing the controller 221 of the front roller 131.
  • such a control When driving the front roller 132 with a rotation speed which is varied with a 1/f fluctuation signal, as shown diagrammatically in Fig. 2(A) between the corresponding extremes, such a control combines the two fiber bundles 321 and 322 into a fine spun twisted union yarn 33 having a natural grandrelle-like pattern with a 1/f fluctuation varying between the patterns of portion L and portion M as indicated in Fig. 2(A).
  • the fibers can be dyed in advance or dyed after the fine spun twisted union yarn 33 has been produced.
  • two fiber bundles having different colors from the rovings 311 and 312 are supplied and pass through a normal back roller 11 with associated back top roller 11T, and a middle roller 12 with associated middle top roller 12T or corresponding aprons. Then, two fiber bundles 321 and 322 are fed to the front rollers 131 and 132, that operate independently of each other, and to front top rollers 131T and 132T that follow the respective front rollers 131 and 132.
  • the feed rate of at least one fiber bundle is alternately varied between two stages, with the feeding time pitch in one stage being varied by a 1/f fluctuation.
  • the other fiber bundle either its feed rate may be kept constant or its feeding time pitch may be varied by a 1/f fluctuation opposite to that of the first fiber bundle.
  • the surface speed of the front roller 132 can be set at 1.25 as opposed to a surface speed of 1.00 for the front roller 131 in one stage; and the surface speed of the front roller 132 can be set at 1.00 as opposed to a surface speed of 1.25 for the front roller 131 in the other stage.
  • This situation is shown diagrammatically in Fig. 3 of the drawings. In this way, at least in one stage, the feeding type is varied at a pitch of 1/f fluctuation.
  • the fiber bundle 321 becomes thinner and longer than the fiber bundle 322 of the front roller 132 rotating at a surface speed of 1.00. Accordingly, the fiber bundle 321 from the roving 311 is exposed when winding itself around the periphery of the fine spun twisted union yarn 33 produced thereby, as shown at J in Fig. 3.
  • the patterns of fine spun twisted union yarn 33 produced in such a manner are shown in the lower portion of Fig. 3.
  • Such fine spun twisted union yarn 33 are produced wherein the rotation of the front rollers 131 and 132 is controlled in such a manner that the exposed portion of one fiber bundle 321 will be approximately 20 mm long, and with the feeding time varied at a pitch of 1/f fluctuation in time periods indicated at t1, t2, t3, t4 etc. in the stage when the surface speed of the front roller 132 is 1.25.
  • fine spun twisted union yarn 33 is obtained by spinning and twisting the two fiber bundles 321 and 322 with each other resulting in a yarn 33 having a 1/f fluctuation. In other words, it has a natural grandrelle-like pattern instead of a regular or random pattern.
  • the fibers can be dyed in advance or dyed after the fine spun twisted union yarn 33 has been produced.
  • the fine spun twisted union yarn 33 can further be used to obtain woven or knitted fabrics having a natural grandrelle-like pattern with a 1/f fluctuation.
  • dyeing can also be carried out after a woven or knitted fabric has been produced by using the fine spun twisted union yarn 33.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP00102785A 1999-02-12 2000-02-10 Verbundgarn und verfahren zur dessen herstellung Withdrawn EP1028182A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3418299 1999-02-12
JP3418299 1999-02-12

Publications (1)

Publication Number Publication Date
EP1028182A1 true EP1028182A1 (de) 2000-08-16

Family

ID=12407069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00102785A Withdrawn EP1028182A1 (de) 1999-02-12 2000-02-10 Verbundgarn und verfahren zur dessen herstellung

Country Status (4)

Country Link
US (1) US20020152738A1 (de)
EP (1) EP1028182A1 (de)
KR (1) KR20000076626A (de)
CN (1) CN1263175A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10236450A1 (de) * 2002-08-08 2004-02-19 Maschinenfabrik Rieter Ag Spinnmaschine mit einem Mehrstufen-Verdichtungs-Streckwerk
CZ300469B6 (cs) * 2004-02-16 2009-05-27 Oerlikon Czech S.R.O. Zpusob podávání pramene pri výrobe efektní príze a sprádací jednotka k jeho provádení

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100425749C (zh) * 2002-04-22 2008-10-15 沈晓飞 罗拉牵伸机构
CN1904168B (zh) * 2006-07-28 2010-05-12 山东岱银纺织集团股份有限公司 一种交捻竹节纱的生产方法
CN102864544B (zh) * 2012-10-08 2015-07-15 如皋市丁堰纺织有限公司 单股竹节赛络纺竹节纱的生产工艺
WO2017155370A1 (ko) * 2016-03-11 2017-09-14 사단법인 코티티시험연구원 멀티-이펙트얀 및 이를 위한 제조장치
US11891264B2 (en) * 2022-01-24 2024-02-06 Jean-Michel Libeau System for producing yarn

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205648A (en) * 1962-10-22 1965-09-14 James L Lohrke Novelty yarn
US4041690A (en) * 1975-11-05 1977-08-16 Tuscarora Cotton Mill Novelty yarn and method for making same
EP0754787A1 (de) * 1995-07-18 1997-01-22 Toshimitsu Musha Spinnverfahren und Spinnmaschine für Mischgarnspinnen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205648A (en) * 1962-10-22 1965-09-14 James L Lohrke Novelty yarn
US4041690A (en) * 1975-11-05 1977-08-16 Tuscarora Cotton Mill Novelty yarn and method for making same
EP0754787A1 (de) * 1995-07-18 1997-01-22 Toshimitsu Musha Spinnverfahren und Spinnmaschine für Mischgarnspinnen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10236450A1 (de) * 2002-08-08 2004-02-19 Maschinenfabrik Rieter Ag Spinnmaschine mit einem Mehrstufen-Verdichtungs-Streckwerk
CZ300469B6 (cs) * 2004-02-16 2009-05-27 Oerlikon Czech S.R.O. Zpusob podávání pramene pri výrobe efektní príze a sprádací jednotka k jeho provádení

Also Published As

Publication number Publication date
KR20000076626A (ko) 2000-12-26
US20020152738A1 (en) 2002-10-24
CN1263175A (zh) 2000-08-16

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