EP0106686A2 - Abwechselnd texturiertes Garn - Google Patents

Abwechselnd texturiertes Garn Download PDF

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Publication number
EP0106686A2
EP0106686A2 EP83306250A EP83306250A EP0106686A2 EP 0106686 A2 EP0106686 A2 EP 0106686A2 EP 83306250 A EP83306250 A EP 83306250A EP 83306250 A EP83306250 A EP 83306250A EP 0106686 A2 EP0106686 A2 EP 0106686A2
Authority
EP
European Patent Office
Prior art keywords
yarn
false
electromagnet
creel
tension
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.)
Granted
Application number
EP83306250A
Other languages
English (en)
French (fr)
Other versions
EP0106686B1 (de
EP0106686A3 (en
Inventor
James Ronald Moore
Edgar Henry Pittman
William John Schroder
Charles Erwin Warner
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.)
Milliken Research Corp
Original Assignee
Milliken Research Corp
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
Priority claimed from US06/434,899 external-priority patent/US4454710A/en
Priority claimed from US06/435,053 external-priority patent/US4449355A/en
Priority claimed from US06/435,052 external-priority patent/US4457129A/en
Priority claimed from US06/434,900 external-priority patent/US4462557A/en
Priority claimed from US06/434,898 external-priority patent/US4446690A/en
Priority claimed from US06/434,909 external-priority patent/US4449354A/en
Priority claimed from US06/440,497 external-priority patent/US4446691A/en
Priority claimed from US06/440,498 external-priority patent/US4449356A/en
Priority claimed from US06/468,469 external-priority patent/US4478036A/en
Priority to AT83306250T priority Critical patent/ATE48854T1/de
Application filed by Milliken Research Corp filed Critical Milliken Research Corp
Publication of EP0106686A2 publication Critical patent/EP0106686A2/de
Publication of EP0106686A3 publication Critical patent/EP0106686A3/en
Publication of EP0106686B1 publication Critical patent/EP0106686B1/de
Application granted granted Critical
Expired legal-status Critical Current

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Classifications

    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • B65H59/225—Tension discs
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/024—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting with provision for imparting irregular effects to the yarn
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors
    • 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

Definitions

  • This invention relates generally to the employment of an electromagnetically actuated disc tension control to intermittently grasp and release a continuous filament synthetic yarn which is being processed downstream of the tension control.
  • the system is directed to a method to produce a specially textured yarn by intermittently varying the draw of a continuous filament partially oriented, synthetic, multifilament yarn such as polyester.
  • the multifilament yarn 10 is supplied from a supply package 12 to the false twist device 14 by the feed roll device 16.
  • the yarn 10 from the package 12 successively, in its travel to the feed roll device 16, passes through the balloon control apparatus 18, over the guide members 20, 22 and 24 through the electro-magnetically controlled tension disc apparatus 26 and under the guide member 28 through the primary heater 30 and false twist device 14 to the feed roll device 16.
  • the yarn 10 is intermittently and randomly drawn in the primary heater 30 by the intermittent hold back action of the disc tension apparatus 26.
  • the discs 32 and 34 are intermittently and randomly drawn together and released on the yarn 10 by the action of the electromagnet 36 controlled by the varying voltage supplied thereto by a suitable voltage source which is varied by the action of a random signal generator.
  • the textured yarn passes through the secondary heater 37 with very little overfeed since the speed of the feed roll device 38 is substantially the same as the feed roll device 16 and the crimp in the yarn is allowed to set.
  • the secondary heater can be turned on at an appropriate temperature or off or by-passed and the overfeed varied from high to very little.
  • the feed roll device 38 is driven at a higher speed than the feed roll device 44 to overfeed the textured yarn through the air jet entangling device 40 to commingle and entangle the individual filaments of the textured yarn. From the feed roll device 38 the entangled, textured yarn is slightly overfed to the yarn take-up package 42 by the feed roll device 44.
  • a creel unit designated 46 in Figure 2
  • the creel unit 46 supports a plurality of packages 12 for a plurality of false twist spindle positions and is slid in and out of position relative to a multiple spindle false twisting machine.
  • a partial creel is shown supporting a pair of supply packages held on creel pins supported by creel pin support members 48 that are connected to the creel.
  • a horizontal separation plate 50 Also connected to the creel is a horizontal separation plate 50 through which the yarn guide supports 52 project.
  • a yarn guide 54 for each yarn package is connected thereto to guide the yarn 10 from the package 12 towards the guide member 20.
  • a channel beam 56 between which is connected the balloon control apparatus or bar 18.
  • the balloon of yarn from the creel is unusually erratic and violent due to the alternating take-off velocity and is therefore prone to entanglement if not controlled.
  • the bar 18 prevents yarn 10 from the package 12 from forming a full balloon and getting entangled in and around various elements of the creel such as yarn guides 54.
  • a second bar 18 is shown which is used for the same purpose for the yarn packages (not shown) on the opposite side of the creel unit 46.
  • Figures 3-5 show the electromagnetically controlled tension disc apparatus 26 in detail.
  • the apparatus 26 basically consists of the electromagnet 36, the spring biasing member 60 of Teflon or other suitable material, the tension discs 32 and 34, the disc post 62 and the screw 63 to maintain the aforementioned element in operative relationship.
  • the disc 32 is made from a magnetically attractable material such as a ferrous material while the disc 34 is manufactured from a non-magnetically attractable material.
  • the post 62 has a slot 64 therein which is off set from the centerline of the post. Also for reasons hereinafter explained, it is desired to supply random, intermittent pulses of low and high D.C. voltage with a superimposed A.C.
  • the voltage to the electromagnet 36 is supplied from a control box 65 which receives voltage from an A.C.power supply 66, a high voltage D.C. power supply 68 and a low voltage D.C. power supply 70.
  • a random signal generator 72 Connected between the high voltage D.C. source 68 and the control box 65 is a random signal generator 72 of the type disclosed in U. S. Patent Number 4,160,359 which intermittently and randomly interrupts the voltage from the high voltage D.C. source to the control box 65.
  • each circuit to the electromagnet 36 Located in each circuit to the electromagnet 36 is a diode 74 which only allows current to flow in one direction towards the electromagnet 36.
  • a diode 74 Schematically represented in the high and low voltage D.C. circuit is an adjust switch or variable resistor 76 to adjust the D.C. voltage in the respective circuit.
  • the A.C. voltage from the source 66 supplies A.C. voltage continuously while the high D.C. voltage from the source 68 is interrupted randomly and continuously by the random signal generator 72.
  • this provides periods of high voltage 78 and low voltage 80 for different durations of time, as well as peaks 82 at times when the high voltage D.C. current is not being supplied and the A.C. current is at its positive peak on its cycle.
  • the various lengths of the high voltage peak 78 represent periods when the yarn 10 is being held tightly between the discs 32 and 34 while the peaks 82 and the low voltage periods 80 represent periods when the voltage is low and the discs 32 and 34 tend to release the grip on the yarn 10 and vibrate as the yarn passes therethrough.
  • the spring biasing member 60 causes the discs to be urged upward and allows the frictional resistance between the discs 32 and 34 and between the disc 34 and the electromagnet 36 to be reduced so that the torque exerted by the yarn passing through the slot 64 of the post 62 will cause them to rotate more efficiently to provide the self-cleaning action.
  • the vibration of the discs allows the discs to be rotated more easily so that the yarn passing through will subsequently clean out the finish deposited between the discs by the yarn.
  • FIGs 9 and 10 an alternate scheme is shown to enhance the rotation of the discs 32 and 34.
  • elements therein whichare the same in Figures 1-8 are indicated by the same reference number.
  • the basic modification shown in Figures 9 and 10. is the inclusion of a timer 100 in the low voltage D.C. circuit to momentarily cut-off the current flow in the D.C. circuit to the electromagnet 36 to allow the A.C. voltage to peak as indicated in Figure 10. It is understood that the current in the A.C. circuit is flowing continuously in order to obtain the result shown in Figure 10.
  • the timer 100 has the low voltage D.C. circuit open and the random signal generator 72 has the high voltage DrC. circuit open
  • only half-wave rectified A.C. voltage is applied to the coil as shown in Figure 10. This will momentarily upset the tension of the yarn, but enhances the rotation of the discs 32 and 34.
  • the wall 84 defining one portion of the slot 64 can be eliminated and replaced by an upstanding guide member, not shown, which will serve to confine the yarn path to a path offset from the centerline of the post 62.
  • the spring biasing member 60 is of a diameter greater than the inner, internal diameter 85 and less than the inner, external diameter 86 of the lower tension disc 34 so that it is curved downward at its extremities when the discs 32 and 34 are pulled towards the electromagnet 36. Conversely, when the voltage to the electromagnet is reduced, the upward force exerted due to the bias of the member 60 urges the discs upward.
  • the tension discs 32 and 34 it is desired to cause the tension discs 32 and 34 to rotate in order to dissipate the finish deposited therebetween by the yarn 10.
  • the discs 32 and 34 are free to rotate on the post 62.
  • the slot 64 is located off center of the centerline of the post so that the yarn passing between the discs 32 and 34 will exert a torque thereon.
  • yarn 10 since yarn 10 is located in the slot 64 between the discs 32 and 34, the yarn cannot jump out from between the discs and have to be rethreaded. Further, such location of the yarn in the slot prevents uncontrolled texturing and lessens the tendency for yarn breaks.
  • Two ends of a 240 denier, 68 filament DuPont 56T polyester yarn were processed as described above and entangled or interlaced in the air jet 40 to provide a 2/150/68 yarn with an actual denier of 321.
  • the elongation was 51% with a crimp contraction of 1%.
  • the operating conditions were as follows:
  • the yarn thus produced has a very low crimp contraction with high luster and intermittent character.
  • Two ends of a 220 denier, 54 filament DuPont 693T polyester yarn were processed and entangled in the air jet 40 to provide a 2/150/54 yarn with an actual diameter of 328 denier.
  • the elongation was 48% with a crimp contraction of 1.8%.
  • the operating conditions were as follows:
  • the yarn produced has a low crimp contraction with very high luster and intermittent character.
  • the described apparatus and method provides a randomly, intermittently textured, continuous multifilament synthetic yarn which along its length has variable molecular orientation, bulk, torque, twist and shrinkage.
  • the produced yarn has a low crimp contraction and a high luster.
  • This yarn is especially useful in the fabrication of a velvet-type upholstery fabric and provides unique visual effects due to its variable dye affinity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP19830306250 1982-10-18 1983-10-14 Abwechselnd texturiertes Garn Expired EP0106686B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83306250T ATE48854T1 (de) 1982-10-18 1983-10-14 Abwechselnd texturiertes garn.

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
US434900 1982-10-18
US434898 1982-10-18
US434899 1982-10-18
US06/434,899 US4454710A (en) 1982-10-18 1982-10-18 Balloon control for yarn texturing machine
US435052 1982-10-18
US434909 1982-10-18
US06/434,909 US4449354A (en) 1982-10-18 1982-10-18 Disc type yarn tension control
US06/434,898 US4446690A (en) 1982-10-18 1982-10-18 Bar balloon control
US06/434,900 US4462557A (en) 1982-10-18 1982-10-18 Spring biased electromagnetically controlled tension control
US435053 1982-10-18
US06/435,052 US4457129A (en) 1982-10-18 1982-10-18 Slotted disc type yarn tension control
US06/435,053 US4449355A (en) 1982-10-18 1982-10-18 A.C.-D.C. Slotted type yarn tension control
US06/440,497 US4446691A (en) 1982-11-10 1982-11-10 High A.C.-D.C. yarn tension control
US440497 1982-11-10
US06/440,498 US4449356A (en) 1982-11-10 1982-11-10 Continuous A.C. tension control
US440498 1982-11-10
US06/468,469 US4478036A (en) 1983-02-22 1983-02-22 Method, apparatus and intermittently textured yarn
US468469 1983-02-22

Publications (3)

Publication Number Publication Date
EP0106686A2 true EP0106686A2 (de) 1984-04-25
EP0106686A3 EP0106686A3 (en) 1986-01-22
EP0106686B1 EP0106686B1 (de) 1989-12-20

Family

ID=27578839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830306250 Expired EP0106686B1 (de) 1982-10-18 1983-10-14 Abwechselnd texturiertes Garn

Country Status (2)

Country Link
EP (1) EP0106686B1 (de)
DE (1) DE3380991D1 (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100091A (en) * 1961-03-20 1963-08-06 Lindley & Company Inc Yarn tensioning device
US3350867A (en) * 1965-08-24 1967-11-07 Burlington Industries Inc Process and apparatus for making a novelty yarn
GB1362178A (en) * 1971-11-24 1974-07-30 Courtaulds Ltd Crimped filaments of varying denier
US3911655A (en) * 1972-01-11 1975-10-14 Burlington Industries Inc Process and apparatus for making textured yarn
US3797775A (en) * 1973-02-01 1974-03-19 E White Strand tension control
DE2411074A1 (de) * 1974-03-08 1975-09-18 Akzo Gmbh Verfahren und vorrichtung zur herstellung eines abwechselnd dicke und duenne stellen aufweisenden effektgarns
US4345424A (en) * 1980-06-23 1982-08-24 Akzona Incorporated Textured novelty yarn and process

Also Published As

Publication number Publication date
EP0106686B1 (de) 1989-12-20
DE3380991D1 (de) 1990-01-25
EP0106686A3 (en) 1986-01-22

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