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WO2009056977A1 - Noyaux de tube améliorés pour emballer des filaments élastomères - Google Patents

Noyaux de tube améliorés pour emballer des filaments élastomères Download PDF

Info

Publication number
WO2009056977A1
WO2009056977A1 PCT/IB2008/003080 IB2008003080W WO2009056977A1 WO 2009056977 A1 WO2009056977 A1 WO 2009056977A1 IB 2008003080 W IB2008003080 W IB 2008003080W WO 2009056977 A1 WO2009056977 A1 WO 2009056977A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube core
tube
groove
package
yarn
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.)
Ceased
Application number
PCT/IB2008/003080
Other languages
English (en)
Inventor
Werner Hopstaken
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.)
INVISTA TECHNOLOGIES Sarl
Invista Technologies SARL USA
Original Assignee
INVISTA TECHNOLOGIES Sarl
Invista Technologies SARL USA
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 INVISTA TECHNOLOGIES Sarl, Invista Technologies SARL USA filed Critical INVISTA TECHNOLOGIES Sarl
Publication of WO2009056977A1 publication Critical patent/WO2009056977A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/26—Arrangements for preventing slipping of winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/28—Arrangements for positively securing ends of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/319—Elastic threads

Definitions

  • the present invention generally relates to tube cores for winding of thread/fiber/yarn into packages, and more particularly to improved paper tube cores for winding elastomeric fibers, such spandex thread/fiber/yarn, and the like, into packages for subsequent use in continuous running over-end-take-off (OETO) applications.
  • OETO over-end-take-off
  • the tube core in the winding position is rotationally driven, such that the moving threadline exiting a fiber manufacturing process in tangential contact with the tube core is wound onto the core.
  • a traverse device traveling parallel to the axis of the tube core moves the threadline back and forth along the length of the tube core so that the package is evenly built as winding proceeds.
  • a contact roll in contact with the outer periphery of the building package senses when the radial dimension of the wound package has reached its specified full size.
  • the turret rotates bringing the empty standby tube core into the winding position.
  • the moving threadline is engaged with the empty rotating tube core to begin the winding of a fresh package while simultaneously the threadline between the completed package, rotated to the standby position, and the new package is cut.
  • the completed package is removed from the standby position and replaced with an empty tube core.
  • FIG. 1 illustrates an exemplary OETO apparatus 100 having a plurality of packages 102 for OETO delivery (e.g., as further described in commonly-assigned U.S. Patent No. 6,676,054, U.S. Published Patent Application Nos. 2005/0133653 Al, and 2006/0011771 Al, and PCT Published Patent Application No. WO2006/025955, incorporated by reference herein).
  • OETO OETO
  • the package remains stationary during unwinding and therefore allows continuous operation of a manufacturing process, because the terminating end (referred to as the "transfer tail") of the fiber wound on an active package can be attached to the leading end of the fiber wound on a standby package.
  • Methods for forming an accessible transfer tail have included providing the surface of the tube core with a slip resistant coating.
  • Several rotations of the tube core prior to starting the traverse mechanism will form a transfer tail wound in a location near the edge of one end of the tube core and displaced from that region of the tube core on which the remainder of the packaging will be built once the traverse mechanism is started.
  • the slip resistant coating aids in preventing sliding of the transfer tail along the surface of the tube core so as to become entrapped under the building package.
  • the slip resistant coating also is effective in preventing movement, parallel to the axis of rotation of the tube core, of the first several winds of yarn that are laid down in the traverse region.
  • Another method reported for producing useable transfer tails is to provide a circumferential groove or recess in the outer surface of a tube core and located near one end of the tube core and displaced from that region of the tube core on which the remainder of the packaging will be built once the traverse mechanism is started.
  • the groove also helps prevent movement of the transfer tail that might render it unusable.
  • Coating discloses a method which was used to treat tube cores to increase the coefficient of friction.
  • a tube core with a 360 degree groove cut, and a smooth surface does not provide the best groove and surface characteristics for the production of wound spandex packages and the unwinding of such packages to provide continuous delivery of elastomeric fibers, such spandex thread/fiber/yarn, and the like, via OETO technology, and the like, in one cohesive design.
  • OETO delivery of fiber to a manufacturing process may still experience process interruptions even if the transfer tail formation and recovery has been successful.
  • the length of fiber between the transfer tail winds and the cut that was made to sever the threadline from the previously completed package may become embedded underneath the building package. If long enough, it may even wrap itself around the tube core underneath the package to be wound.
  • such defects can result in the last few layers of a nearly exhausted package to separate from the tube core all at once (e.g., in a clump), leading to a fouling of the threadline and possible process interruption.
  • a tube core that does not suffer from the above and other deficiencies of prior tube cores and so as to improve consistency of transfer tail formation and to ensure efficient and continuous over-end-take-off (OETO) yarn delivery performance for elastomeric fiber (e.g., spandex, and the like) producers, customers in the hygiene industry, and the like.
  • OETO over-end-take-off
  • the above and other problems are addressed by the exemplary embodiments of the present invention, which provide ideal tube core characteristics for the winding and subsequent unwinding of elastomeric fiber (e.g., spandex, and the like), for example, as follows.
  • An exemplary cylindrical tube core that combines (1) a non- continuous circumferential groove or recessed channel traversing less than 360°of the tube core circumference, for example, having a depth less than the thickness of the tube core wall, oriented perpendicular to the axis of the tube core, and located near one end of the tube core; and (2) a slip resistant outer surface.
  • the non-continuous groove or recessed channel is formed in the outer wall of the tube core and located proximate to one end of the tube core, with a slip-resistant coating or surface on the outer wall of the tube core.
  • the non-continuous groove or channel aligned perpendicular to the axis of rotation of the tube core and proximate to one end of the tube core, traverses a total of less than 360° and in the range of 180° to 355° of the circumference of the outer wall of the tube body.
  • the less than 360° angular range covered by the groove can be in one uninterrupted segment.
  • the less than 360° groove can include alternating segments of grooved and non-grooved surface aligned in a single circumferential line proximate to one end of the tube core such that cumulative angular range traversed by the grooved segments is less than 360°.
  • the exemplary features respectively promote the formation of a well defined transfer tail that can be easily located and captured and the avoidance of yarn slippage/entanglement at the tube core when the last winds of yarn are removed.
  • the non-continuous groove anchors the fiber of the transfer tail below the outer wall surface of the tube core around most of the tube core circumference, but leaves a circumferential segment or segments where the transfer tail is lying on top of the outer wall of the tube core, and advantageously, avoiding the problem of having to extract the transfer tail from the recessed groove.
  • a tube core for production and delivery of elastomeric filaments including a tube body, a non-continuous groove or recessed channel formed in an outer wall of and proximate to one end of the tube body, and a slip-resistant coating or surface on the outer wall of the tube body.
  • the total angular range traversed by the groove or channel is less than 360° or in the range of 180° to 355° of the circumference of the outer wall of the tube body.
  • the slip-resistant coating or surface includes a colloidal silica, such as a Ludox®, coating or surface.
  • the tube body is constructed from paper.
  • the elastomeric filaments include spandex.
  • the tube core is adapted for over-end-take-off (OETO) applications.
  • the improved tube core of the exemplary embodiments provides for improved transfer tail formation efficiency during production of a wound package and ease of capturing the transfer tail when preparing for unwinding.
  • the latter is advantageous when mounting the package on an unwinding creel and splicing the transfer tail to the leading yarn end of a standby package to ensure continuous, reliable unwinding performance at the customer.
  • the exemplary embodiments thus provide the dimensions and placement of a groove cut into the tube for the purpose of receiving the transfer tail during winding, and the slip resistant character of the tube surface, advantageously, resulting in more efficient transfer tail formation on, and removal from, the wound elastomeric fiber (e.g., spandex thread/fiber/yarn, and the like) package, as well as more reliable yarn delivery from the tube surface during the unwinding of the package.
  • the wound elastomeric fiber e.g., spandex thread/fiber/yarn, and the like
  • FIG. 1 illustrates an exemplary over-end-take-off (OETO) apparatus having a plurality of packages for OETO delivery
  • FIG. 2 illustrates a side view of an exemplary tube core, including a coated tube, and a non-continuous groove
  • FIG. 3 illustrates an end view of the exemplary tube core of FIG.2; and FIG. 4 illustrates an exemplary use of the exemplary tube core of FIG.2 with a commercial yarn package.
  • FIG. 2 there is illustrated a side view of an exemplary tube core 200, including tube 202 (e.g., constructed of paper) and coated with surface coating 204 (e.g., of colloidal silica), and a non-continuous groove 206 for transfer tail capture and improved ease of removal.
  • tube 202 e.g., constructed of paper
  • surface coating 204 e.g., of colloidal silica
  • the tube 202 can include the surface coating 204 of colloidal silica (e.g., a Ludox® coating, and the like) and a non-continuous groove 206 (e.g., a 350° groove, a groove in the range of 180° to 355°, and the like, each located proximate to one end of the tube body and aligned perpendicular to the tube body's axis of rotation), which in combination facilitate the formation of a transfer tail during winding, and the location and capture of the transfer tail in preparation for unwinding.
  • FIG. 3 illustrates an end view of the exemplary tube core 200 of FIG.2.
  • FIG. 4 illustrates an exemplary use of the exemplary tube core 200 of FIG.2 with a commercial yarn package 402.
  • the yarn package 402 includes a transfer tail 404, which is captured in the groove 206, and is connected to the yarn package 402 for the yarn which is in one continuous piece.
  • the exemplary tube core 200 provides superior performance with respect to transfer tail formation efficiency during winding of the newly spun fiber and reduced level of process interruptions during subsequent over-end-take-off (OETO) unwinding operations.
  • This higher level of process efficiency can be quantitatively monitored by measurement of what is referred to as "Transfer Tail Efficiency,” defined as the percentage of wound packages not rejected because of observed transfer tail defects that occur during winding. Such defects may include the absence of a transfer tail or a transfer tail that is trapped underneath the wound package.
  • Transfer tail efficiencies achieved during winding of spandex packages on conventional tube cores have been observed to be in the range of 85-95%.
  • a significantly smaller percentage of undetected defects that cause process interruptions during OETO unwinding of the packages in subsequent manufacturing processes result in yarn package rejection rates by the customer (“unwind rejection rate”) that are typically in the range of 1-2%.
  • the transfer tail efficiency improves from 95% to at least 98% using the improved core tubes of the exemplary embodiments.
  • the tube core 200 coating 204 e.g., of Ludox®
  • the less than 360° groove cut of the groove 206 improves the ease of tail removal.
  • the preferred groove 206 dimensions and the coating surface 204 roughness can be selected such as to ensure winding production performance is not adversely impacted. Unwinding performance also improves due to significant reduction in core defects for entanglements.
  • changing the attributes of a conventional tube core, including groove 206 formation and surface roughness due to the coating 204 enhance the overall value in use of, for example, spandex yarn contained on the tube.
  • the unique groove 206 characteristics improve tube-to-tube production efficiencies, and create an improved method of yarn transfer tail removal when mounting the wound package on an unwinding creel, and when splicing the yarn transfer tail to the leading edge of a standby package.
  • the modified surface roughness due to the coating 204 further reduces the potential for stops/breaks due to yarn tangling.
  • exemplary embodiments are described in terms of use of surface coatings, such a Ludox®, and the like, the exemplary embodiments can be employed with any suitable coatings, as will be appreciated by those skilled in the relevant art(s).

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Abstract

La présente invention concerne un noyau (202) de tube pour la production et la distribution de filaments élastomères, comprenant un corps de tube, une rainure non continue ou un canal évidé (206) formé dans une paroi externe et proche d'une extrémité du corps de tube, et un revêtement ou une surface antidérapante (204) sur la paroi externe du corps de tube. La plage angulaire totale traversée par la rainure ou le canal est inférieure à 360° ou dans la plage allant de 180° à 355° de la circonférence de la paroi externe du corps de tube. Le revêtement ou la surface antidérapante comprend une silice colloïdale, tel qu'un revêtement ou une surface en Ludox®. Le corps du tube est fabriqué en papier. Les filaments élastomères comprennent du spandex. Le noyau du tube est adapté pour des applications de dévidage à la défilée.
PCT/IB2008/003080 2007-11-01 2008-09-10 Noyaux de tube améliorés pour emballer des filaments élastomères Ceased WO2009056977A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97142807P 2007-11-01 2007-11-01
US60/971,428 2007-11-01

Publications (1)

Publication Number Publication Date
WO2009056977A1 true WO2009056977A1 (fr) 2009-05-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/003080 Ceased WO2009056977A1 (fr) 2007-11-01 2008-09-10 Noyaux de tube améliorés pour emballer des filaments élastomères

Country Status (3)

Country Link
US (1) US20090114754A1 (fr)
TW (1) TW200940434A (fr)
WO (1) WO2009056977A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11214461B2 (en) * 2015-03-25 2022-01-04 Gpcp Ip Holdings Llc Slip resistant core for holding a paper web
TWI786138B (zh) * 2017-06-29 2022-12-11 日商東麗奧培隆特士股份有限公司 彈性紗卷層體捲裝
JP7062237B2 (ja) * 2017-06-29 2022-05-06 東レ・オペロンテックス株式会社 弾性糸巻糸体パッケージ
US11305962B2 (en) 2017-06-29 2022-04-19 Toray Opelontex Co., Ltd. Elastic yarn wound body package

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034743A (en) * 1960-02-25 1962-05-15 Du Pont Circumferentially grooved, longitudinally striped bobbin
US3138345A (en) * 1960-09-27 1964-06-23 Sulzer Ag Bobbin body having rthread end attaching means
GB1180760A (en) * 1966-11-14 1970-02-11 Du Pont Textile Yarn Core
US4050646A (en) * 1975-12-05 1977-09-27 Burchette Jr Robert L Yarn carrier
US4057201A (en) * 1976-06-16 1977-11-08 Alton Box Board Company Yarn core including slip resistant transfer coating
US4852823A (en) * 1988-11-10 1989-08-01 Sonoco Products Company Yarn tube with identification means and winding method utilizing such tube
WO1993024403A1 (fr) * 1992-06-03 1993-12-09 Sonoco Products Company Bobine pour textiles, comportant une rainure de demarrage amelioree et lame de rainurage a cet effet
US5441208A (en) * 1993-05-20 1995-08-15 Sonoco Products Company Textile core having transfer tail engagement

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327738A (en) * 1942-03-13 1943-08-24 Universal Winding Co Textile core
US4063696A (en) * 1976-08-23 1977-12-20 Burlington Industries, Inc. Slotted take-up package tube for open-end spinning machines
US5174840A (en) * 1991-11-25 1992-12-29 Everhard Products, Inc. Shell construction and method of making same
ES2224981T3 (es) * 2000-09-06 2005-03-16 Nan Ya Plastics Corporation Bobina con una ranura cortada en forma de v que se estrecha gradualmente, con una superficie rugosa que comprende escamas invertidas.
US6676054B2 (en) * 2001-03-23 2004-01-13 E. I. Du Pont De Nemours And Company Unwinder for as-spun elastomeric fiber
US20050133653A1 (en) * 2001-03-23 2005-06-23 Invista North America S.A R.L. Tension controlled thread feeding system
US20050017121A1 (en) * 2003-07-24 2005-01-27 Sonoco Development, Inc. Yarn core
WO2006025955A1 (fr) * 2004-07-16 2006-03-09 Invista Technologies S.À.R.L. Cantre de distribution continue de fil

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034743A (en) * 1960-02-25 1962-05-15 Du Pont Circumferentially grooved, longitudinally striped bobbin
US3138345A (en) * 1960-09-27 1964-06-23 Sulzer Ag Bobbin body having rthread end attaching means
GB1180760A (en) * 1966-11-14 1970-02-11 Du Pont Textile Yarn Core
US4050646A (en) * 1975-12-05 1977-09-27 Burchette Jr Robert L Yarn carrier
US4057201A (en) * 1976-06-16 1977-11-08 Alton Box Board Company Yarn core including slip resistant transfer coating
US4852823A (en) * 1988-11-10 1989-08-01 Sonoco Products Company Yarn tube with identification means and winding method utilizing such tube
WO1993024403A1 (fr) * 1992-06-03 1993-12-09 Sonoco Products Company Bobine pour textiles, comportant une rainure de demarrage amelioree et lame de rainurage a cet effet
US5441208A (en) * 1993-05-20 1995-08-15 Sonoco Products Company Textile core having transfer tail engagement

Also Published As

Publication number Publication date
US20090114754A1 (en) 2009-05-07
TW200940434A (en) 2009-10-01

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