US20020152738A1 - Composite yarn and method of manufacturing it - Google Patents

Composite yarn and method of manufacturing it Download PDF

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Publication number
US20020152738A1
US20020152738A1 US09/502,471 US50247100A US2002152738A1 US 20020152738 A1 US20020152738 A1 US 20020152738A1 US 50247100 A US50247100 A US 50247100A US 2002152738 A1 US2002152738 A1 US 2002152738A1
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US
United States
Prior art keywords
fiber bundle
yarn
fluctuation
fine
fiber
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.)
Abandoned
Application number
US09/502,471
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English (en)
Inventor
Toshimitsu Musha
Yuki Niwa
Masaaki Isobe
Shigeo 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
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 filed Critical Nisshinbo Industries Inc
Assigned to NISSHINBO INDUSTRIES, INC., MUSHA, TOSHIMITSU reassignment NISSHINBO INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MUSHA, TOSHIMITSU, HORIKOSHI, SHIGEO, ISOBE, MASAAKI, NIWA, YUKI
Publication of US20020152738A1 publication Critical patent/US20020152738A1/en
Abandoned 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 it.
  • 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 composite yarn 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 yard by using a fine spinning machine, wherein the feed rate of a 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.
  • FIG. 1 is a perspective diagrammatic view of a fine spinning machine for manufacturing a composite yarn with a 1/f fluctuation
  • FIGS. 2 (A) to 2 (C) are diagrammatic views explaining the manufacturing method and the structure of composite yarn when the feed rate of one fiber bundle is varied with a 1/f fluctuation;
  • FIG. 3 shows diagrammatic views explaining the method of manufacturing composite yarn when the feed rate of two fiber bundles is varied with a l/f fluctuation.
  • 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 11 T, a middle roller portion comprising a middle roller or an apron 12 and a middle top roller or a top apron 12 T, front rollers 131 and 132 , as well as front top rollers 131 T and 132 T.
  • the pairs of rollers 131 and 131 T on the one hand and 132 and 132 T 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 trade name “Tencell”; and synthetic fibers such as nylon and polyester, and for the two fiber bundle 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 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 131 T and 132 T 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 131 T and 132 T 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 has a power spectrum which is similar to the above.
  • a 1/f fluctuation signal is of the type wherein, when its power spectrum is analyzed 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 11 T and a middle roller 12 with associated middle top roller 12 T, 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 131 T and 132 T 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 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 .
  • 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 11 T, and a middle roller 12 with associated middle top roller 12 T 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 131 T and 132 T 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.
  • 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 t 1 , t 2 , t 3 , t 4 , etc. in the stage when the surface speed of the front roller 132 is 1.25.
  • fine spun twisted union yarn 33 are 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 are 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. When two fiber bundles having different dyeing property are used, dyeing can be also done after woven or knitted fabric are 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)
US09/502,471 1999-02-12 2000-02-11 Composite yarn and method of manufacturing it Abandoned US20020152738A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11-34182 1999-02-12
JP3418299 1999-02-12

Publications (1)

Publication Number Publication Date
US20020152738A1 true US20020152738A1 (en) 2002-10-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US09/502,471 Abandoned US20020152738A1 (en) 1999-02-12 2000-02-11 Composite yarn and method of manufacturing it

Country Status (4)

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US (1) US20020152738A1 (ko)
EP (1) EP1028182A1 (ko)
KR (1) KR20000076626A (ko)
CN (1) CN1263175A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230234807A1 (en) * 2022-01-24 2023-07-27 Jean-Michel Libeau System for Producing Yarn

Families Citing this family (6)

* 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
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
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

Family Cites Families (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
JP2860455B2 (ja) * 1995-07-18 1999-02-24 日清紡績株式会社 混紡機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230234807A1 (en) * 2022-01-24 2023-07-27 Jean-Michel Libeau System for Producing Yarn
US11891264B2 (en) * 2022-01-24 2024-02-06 Jean-Michel Libeau System for producing yarn

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KR20000076626A (ko) 2000-12-26
EP1028182A1 (en) 2000-08-16
CN1263175A (zh) 2000-08-16

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Owner name: NISSHINBO INDUSTRIES, INC., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MUSHA, TOSHIMITSU;NIWA, YUKI;ISOBE, MASAAKI;AND OTHERS;REEL/FRAME:010564/0139;SIGNING DATES FROM 20000202 TO 20000203

Owner name: MUSHA, TOSHIMITSU, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MUSHA, TOSHIMITSU;NIWA, YUKI;ISOBE, MASAAKI;AND OTHERS;REEL/FRAME:010564/0139;SIGNING DATES FROM 20000202 TO 20000203

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION