US3813863A - Apparatus and process for continuously texturing and post-setting yarns - Google Patents

Apparatus and process for continuously texturing and post-setting yarns Download PDF

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Publication number
US3813863A
US3813863A US00302476A US30247672A US3813863A US 3813863 A US3813863 A US 3813863A US 00302476 A US00302476 A US 00302476A US 30247672 A US30247672 A US 30247672A US 3813863 A US3813863 A US 3813863A
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United States
Prior art keywords
yarn
false
twist
heating
hot air
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Expired - Lifetime
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US00302476A
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English (en)
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H Ritter
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Heberlein and Co AG
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Heberlein and Co AG
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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
    • 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

Definitions

  • SHEET 2 (IF 2 PATENIEBM 4 mm This invention relates to apparatus for the continuous treatment of yarns, and more particularly, to apparatus for the continuous false-twist texturing and post-setting of yarns of thermoplastic synthetic material, and a process therefor.
  • false-twist texturing devices are known in which the yarn, in order to obtain the longest possible heating path for heat-setting the false-twist, is passed through a heating device in one direction, then deviated by 180 and then passed through the same heating device in reverse direction (see, for example, British Patent 901,922).
  • the disadvantage of this measure consists in that twist is accumulated at the point of deviation between the first and the second passages of the yarn, which twist accumulation is very difficult to control and which may lead to irregularities in yarn quality.
  • the heating device of at least two heating units which may be adjusted to different temperatures and by arranging the yarn advancing and guiding means so that each yarn, before passage through the false-twist imparter, passes through both heating units which, together, form the heating path for heat-setting the false-twist, and, after passage through the false-twist imparter, passes again through the first heating unit which, when used alone, forms the heating path for post-setting.
  • the two heating units may be heated to different temperatures, i.e., the first heating unit, suitable for post-setting, may have a somewhat lower temperature than the second heating unit, whereas the temperature of the second heating unit should be high enough to assure molecular rearrangement during heat-setting of the yarn while in the false-twisted state.
  • the first unit of the heating apparatus may consist of a hot air box in which heat is transferred to the yarn by convection; and the second heating unit may also consist of a hot air box or of a contact heating element, for example of a slightly vaulted heated plate, rail or tube. In certain cases, it is also possible to use contact heating elements for both heating units.
  • a further aspect of the present invention is charac-.
  • exchangeable tubes of heat-conductive material with different heat transfer properties and/or a heat insulating separation wall for dividing the hot air box into two closed chambers, each of which is provided for one yarn path may be provided.
  • the exchangeable tubes may primarily have different interior diameters.
  • a tube with a larger inner diameter provides lower heat transfer to the yarn than a tube with a small interior diameter because of less intense radiation and because of greater air circulation.
  • tubes consisting of materials with different heat conductivities which may have either equal or different interior diameters; and a heat-insulating separation wall may be provided in the hot air box between tube sections serving as the two yarn paths, and the hot air temperature in the two thus-formed chambers may be selected by separate control means.
  • FIG. 1 is an elevational view showing the construction of a first form of my invention
  • FIG. 2 is a similar view illustrating the construction of a second form of the invention
  • FIG. 3 illustrates a third form of the invention
  • FIG. 4 illustrates a fourth form of the invention.
  • yarn 2 leaves d livery bobbin 1 and passes over deviation elements 27 and 28 and is drawn away by means of delivery rollers 3, whereupon it passes over deviation elements 24 and 25 and is introduced through inlet 4 into a heating box 5 closed on all sides and containing hot air.
  • the box 5 forms a first unit of the heating device.
  • Yam 2 leaves the box 5 through outlet 6 and enters into the second heating box 7, arranged close to heating box 5, through inlet 8.
  • a short removable tube 9 is provided between the outlet 6 and inlet 8.
  • Yam 2 leaves heating box 7 through outlet MD, and successively passes over deviation elements 11 and 12 through the false-twist imparter 13, the deviation elements 14 and 29, and rollers l5, and enters into the heating box 5 for a second time through inlet 16, leaving the same through outlet 17, whereupon it is fed to the wind-up device 22 via deviation elements 18 and 19, delivery rollers 20 and deviation element 21.
  • H6. 4 which only shows the hot air box 5
  • the same is divided into two closed chambers 31 and 32 by means of a heat-insulating wall inserted between tubes 33 and 34, in which chambers there is hot air of different temperatures so that the tubes 33 and 34- are heated to different temperatures.
  • the temperature in the two chambers 31, 32 may be selected according to necessity by means of separate control devices (not shown).
  • the apparatus of the present invention may be used in the form of a machine with a plurality of treatment stations arranged beside each other on both sides'of a frame, the number being for example, 160, i.e., 80 on each side of the frame, said machine having a twist imparter for each treatment station.
  • the horizontal walls of the heating boxes 5 and '7, extending over the whole length of the frame, may have a corresponding number of yarn inlets and outlets.
  • the heating box may also be equipped with separate tubes for the passage of each individual yarn. If, instead of the heating box 7, a heatingplate 23 is used, on each side of the machine, several heating plates extending over a certain number of, for example 10, treatment stations may be used.
  • the apparatus is particularly suitable for false-twist texturing and postsetting of multifilament yarns of polyamides, polyester, polyacrylonitrile, polyolefines and acetate rayon.
  • the temperature of the first heating unit which serves as post-setting heating path during the second passage of the yarn therethrough may, according to the required extent of reduction of elasticity, be between lQ and 210C whereas, in the second heating unit which serves as terminal stage of the heating path for heat-setting the false-twist, the temperature should be approximately between 219? and 239C to effect molecular rearrangement in the filament material.
  • Apparatus for continuous false-twist texturing and post-setting of yarns of thermoplastic synthetic material comprising false-twist means, heating means and yarn delivering and guiding means, said heating means consisting of two separate hot air boxes adjustable to different temperatures each box having yarn inlet and outlet means and said yarn delivery and guiding means passing each yarn sequentially first through both hot air boxes to effect setting of the false-twist then through the false-twist means and again through the first hot air box to effect post-setting of the yarn.
  • Apparatus according to claim 1 characterized in that the yarn outlet means (6) on the lower face of the hot air box (5) forming the first heating unit and the yarn inlet means (8) on the upper face of the hot air box (7), forming the second heating unit, are connected by means of a tube (9).
  • Apparatus according to claim 1 characterized in that, in the hot air box (5) serving as first heating unit, separate exchangeable tubes (33, 34) of heatconductive material with different heat transfer properties are provided, each for one of the yarn paths through said first hot air box.
  • a heat-insulating separation wall (30) is provided for separation of the hot air box into two chambers (31,32), each for one of the yarn paths.
  • Apparatus for continuous false-twist texturing and post-setting of yarns of thermoplastic synthetic material comprising false-twist means, heating means and yarn delivering and guiding means said heating means consisting of two separate hot air boxes adjustable to different temperatures each box having yarn inlet and outlet means, separate exchangeable tube means forming paths for the yarn in each box, and said delivery and guiding means passing each yarn sequentially through tube means in both hot air boxes to effect setting of the false-twist, then through the false-twist means and through tube means in the first hot air box to effect post-setting of the yarn.
  • Apparatus according to claim 5 characterized in that at least one of the tube means for the two yarn paths in said first box is exteriorly provided with ribs.
  • Process for continuously false-twist texturing and post-setting of yarns of thermoplastic synthetic material which comprises passing the yarn, before passage through the false-twist imparter, through two heating units which together form the heating path for heatsetting the false-twist and wherein the first heating element is set to a lower temperature than the second heating element and passing the yarn, after passage through the false-twist imparter, once more through the first heating unit for post-setting the yarn.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US00302476A 1971-10-29 1972-10-30 Apparatus and process for continuously texturing and post-setting yarns Expired - Lifetime US3813863A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1579771 1971-10-29
CH888472 1972-06-14

Publications (1)

Publication Number Publication Date
US3813863A true US3813863A (en) 1974-06-04

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US00302476A Expired - Lifetime US3813863A (en) 1971-10-29 1972-10-30 Apparatus and process for continuously texturing and post-setting yarns

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US (1) US3813863A (enExample)
JP (1) JPS4850053A (enExample)
DD (1) DD100746A5 (enExample)
DE (1) DE2248808A1 (enExample)
FR (1) FR2158919A5 (enExample)
IT (1) IT974483B (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962829A (en) * 1973-10-17 1976-06-15 Barmag Barmer Maschinenfabrik Aktiengesellschaft Machines for texturizing synthetic polymer filaments
US3971200A (en) * 1974-03-06 1976-07-27 Leesona Corporation Process and apparatus for continuous heat setting of carpet yarns
US3991545A (en) * 1975-01-17 1976-11-16 Heberlein Maschinenfabrik Pneumatic auxiliary device
US4024697A (en) * 1975-05-22 1977-05-24 Zinser Textilmaschinen Gmbh False twisting machine
US4120141A (en) * 1976-08-02 1978-10-17 The State Of Israel Ministry Of Commerce And Industry Process and apparatus for the production of textured polyester yarn
US5359845A (en) * 1992-04-29 1994-11-01 Icbt Roanne Process and apparatus for cooling a heated yarn
US20050106975A1 (en) * 2003-11-18 2005-05-19 Sun Isle Casual Furniture, Llc Woven articles from synthetic self twisted yarns

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900783A (en) * 1955-10-28 1959-08-25 North American Rayon Corp Yarn crimping apparatus
US2910761A (en) * 1957-03-27 1959-11-03 Beaunit Mills Inc Yarn crimping apparatus
US3041813A (en) * 1959-07-09 1962-07-03 Heberlein Patent Corp Method and apparatus for producing crimped synthetic yarn
US3270492A (en) * 1961-08-23 1966-09-06 Hosiery And Allied Trade Res A Production of yarns
US3298430A (en) * 1962-10-19 1967-01-17 Kodaira Nobuhisa Apparatus of heat treatment for synthetic yarns
US3382658A (en) * 1965-01-26 1968-05-14 Monsanto Co Apparatus for manufacturing textured filament yarns
US3383850A (en) * 1965-08-06 1968-05-21 Ratti Michele Method for fixing one or more previously twisted or coiled yarns or the like during unwinding thereof, particularly applicable to alteration of textureized yarn
US3501904A (en) * 1967-07-21 1970-03-24 Guy Batsch Process and machine for the texturization of thermoplastic yarn,and the yarn thus obtained
US3533146A (en) * 1967-08-31 1970-10-13 Heberlein Patent Corp Heating system for yarns and threads
US3738017A (en) * 1971-01-06 1973-06-12 Heberlein & Co Ag Yarn heating apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900783A (en) * 1955-10-28 1959-08-25 North American Rayon Corp Yarn crimping apparatus
US2910761A (en) * 1957-03-27 1959-11-03 Beaunit Mills Inc Yarn crimping apparatus
US3041813A (en) * 1959-07-09 1962-07-03 Heberlein Patent Corp Method and apparatus for producing crimped synthetic yarn
US3270492A (en) * 1961-08-23 1966-09-06 Hosiery And Allied Trade Res A Production of yarns
US3298430A (en) * 1962-10-19 1967-01-17 Kodaira Nobuhisa Apparatus of heat treatment for synthetic yarns
US3382658A (en) * 1965-01-26 1968-05-14 Monsanto Co Apparatus for manufacturing textured filament yarns
US3383850A (en) * 1965-08-06 1968-05-21 Ratti Michele Method for fixing one or more previously twisted or coiled yarns or the like during unwinding thereof, particularly applicable to alteration of textureized yarn
US3501904A (en) * 1967-07-21 1970-03-24 Guy Batsch Process and machine for the texturization of thermoplastic yarn,and the yarn thus obtained
US3533146A (en) * 1967-08-31 1970-10-13 Heberlein Patent Corp Heating system for yarns and threads
US3738017A (en) * 1971-01-06 1973-06-12 Heberlein & Co Ag Yarn heating apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962829A (en) * 1973-10-17 1976-06-15 Barmag Barmer Maschinenfabrik Aktiengesellschaft Machines for texturizing synthetic polymer filaments
US3971200A (en) * 1974-03-06 1976-07-27 Leesona Corporation Process and apparatus for continuous heat setting of carpet yarns
US3991545A (en) * 1975-01-17 1976-11-16 Heberlein Maschinenfabrik Pneumatic auxiliary device
US4024697A (en) * 1975-05-22 1977-05-24 Zinser Textilmaschinen Gmbh False twisting machine
US4120141A (en) * 1976-08-02 1978-10-17 The State Of Israel Ministry Of Commerce And Industry Process and apparatus for the production of textured polyester yarn
US5359845A (en) * 1992-04-29 1994-11-01 Icbt Roanne Process and apparatus for cooling a heated yarn
US20050106975A1 (en) * 2003-11-18 2005-05-19 Sun Isle Casual Furniture, Llc Woven articles from synthetic self twisted yarns
US20060021668A1 (en) * 2003-11-18 2006-02-02 Sun Isle Usa, Llc Woven articles from synthetic self twisted yarns
US7700022B2 (en) * 2003-11-18 2010-04-20 Casual Living Worldwide, Inc. Woven articles from synthetic self twisted yarns
US20100242253A1 (en) * 2003-11-18 2010-09-30 Casual Living Worldwide, Inc. D/B/A Bji, Inc. Woven articles from synthetic self twisted yarns
US7892989B2 (en) 2003-11-18 2011-02-22 Casual Living Worldwide, Inc. Woven articles from synthetic self twisted yarns
US8052907B2 (en) 2003-11-18 2011-11-08 Sun Isle Usa, Llc Woven articles from synthetic self twisted yarns

Also Published As

Publication number Publication date
DE2248808A1 (de) 1973-05-03
IT974483B (it) 1974-06-20
DD100746A5 (enExample) 1973-10-05
FR2158919A5 (enExample) 1973-06-15
JPS4850053A (enExample) 1973-07-14

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