US3721082A - Process for making textured threads without twist recovery or untwisting - Google Patents

Process for making textured threads without twist recovery or untwisting Download PDF

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Publication number
US3721082A
US3721082A US00159820A US3721082DA US3721082A US 3721082 A US3721082 A US 3721082A US 00159820 A US00159820 A US 00159820A US 3721082D A US3721082D A US 3721082DA US 3721082 A US3721082 A US 3721082A
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United States
Prior art keywords
threads
thread
fiber materials
texturing
united
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Expired - Lifetime
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US00159820A
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English (en)
Inventor
G Munzner
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VER BAUMWOLLSPINNEREIN und ZWI
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VER BAUMWOLLSPINNEREIN und ZWI
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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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam

Definitions

  • ABSTRACT Process for making textured threads which are not subject to twist recovery or untwisting, from synthetic fiber materials consisting of capillary fibers, with a view to obtaining the characteristics of native vegetable threads, comprising the steps of continuously feeding the fiber materials, e.g., from a double-wire spindle, through a feed zone where preferably tension is regulated, heating the materials so as to fix the twist applied thereto, successively cooling the materials, thereby strengthening their intermolecular structure, and subjecting the same to texturing, followed by optional winding up of the completed single or mixed textured threads.
  • FIG. 1 A first figure.
  • the invention relates to a process for making textured threads or yarn which do not have the effects of twist recovery or untwisting of the used, preferably continuous filament or fiber materials consisting of capillary fibers.
  • Native vegetable staple fibers such as cotton have a high economic importance in particular fields of application in the industry and the households on account of their specific characteristics in use such as low elongation, high strength and the like. Such characteristics could not be attained so far by other raw materials. Thus for example a viscose staple fiber lacks among others a corresponding strength.
  • synthetic fibers display in the original form the specific characteristics of either silk or wool..
  • Native staple fibers have the disadvantage that the manufacture of yarn goods imposes high technological expenditures which are due to the unavoidable processing stages such as cleaning, parallelizing, stretching and spinning.
  • textured silks have been developed among others.
  • synthetic threads which consist of a plurality of capillary fibers.
  • Texturing generally means a physical or chemical modification having the purpose to increase the volume and/or the elastic elongation, and generally to alter the silk structure.
  • Texturing is carried out for example by running the thread through a so-called adaptor.
  • This may include inwardly directed fine bores through which air emerges with very high pressure, in the form of individual streams, at various angles of inclination with respect to the threads so that the individual capillary fibers are displaced and brought into a diffuse state by the formation of loops, curls or twists.
  • Synthetic silks can be processed into fully or lesser elastic threads in several procedural steps or in a onestep texturing procedure.
  • the manufacturing technology is consequently relatively simple.
  • true-wire twisting processes are known in which the threads are made on twisting machines -by pre-twisting, fixing and untwisting, discontinuously and in several steps. Even these procedures impart a certain degree of elasticity to the thread on account of its recovery which does not lead to the required specific tasks.
  • the working speed should allow the use of a fixing and texturing zone in the same material flow, excluding undesirable side effects during the texturing phase.
  • the process is characterized in that the fiber material is continuously fed from a rotary organ such as a double-wire spindle, through a feed zone which has a heating element associated therewith, to a consecutive cooling zone followed by a texturing zone, and then with a final winding stage, thereby to produce a thread consisting of synthetic materials or of several components, having the character of native vegetable threads.
  • a rotary organ such as a double-wire spindle
  • a feed zone which has a heating element associated therewith
  • a consecutive cooling zone followed by a texturing zone and then with a final winding stage, thereby to produce a thread consisting of synthetic materials or of several components, having the character of native vegetable threads.
  • the threads are given a permanent twist, such as by means of a double-wire spindle.
  • the moving speed of a pair of take-in rolls can be controlled and regulated with respect to a pair of outlet rolls, thereby to regulate the tension of the threads.
  • the threads may be passed along or within a heating element for fixing the twist imparted by the spindle. Subsequently a cooling zone provides continuous solidification or strengthening of the intermolecular structure.
  • the fixed capillary fibers of the threads can be brought in a diffuse state, namely in a texturing zone, by means of a gaseous or liquid medium applied in an adaptor. Finally the threads can be wound up on a core and the like.
  • a modified procedure relates to the production of textured mixed threads wherein the double-wire spindle is supplemented by a supply device with a thread body or holder.
  • a preferably viscose thread derived from the supply holder can be united into a mixed thread in a hollow cylinder of the double-wire spindle by using the thread coming from the latter.
  • the invention thus provides a continuous process for making mixed threads consisting of several fibers, by tension regulation, fixing, cooling, texturing and spooling.
  • the inventive process allows to produce a high-twist thread in a continuous process at a working speed which allows the use of the fixing and texturing zones in a single pass and work flow with the rotating organs, simultaneously eliminating unwanted side effects such as the formation of too long loops or curls.
  • FIG. 1 shows an arrangement for practising the process of the invention for making synthetic threads
  • FIG. 2 is a modified arrangement (shown in part) for the process of making mixed threads.
  • a double-wire spindle l carries a spool with thread 2 which is relatively or absolutely non twisted.
  • the thread 2 is given the required degree of twist.
  • the thread is then led past a guide 3.
  • the feeding speed of the rolls 4 can be controlled and adjusted with respect to that of the rolls 5 so that the thread 2 can be relaxed or stretched depending on the desired effect and/or material used.
  • a heating element 6 is provided in the feed zone, the thread 2 passing therealong or therein, producing a temperature which is below the melting point of the thread, so as to fix the molecular structure of the hightwisted thread 2 in its present form.
  • a guide roller 7 takes the thread 2 through a cooling zone 8 where the intermolecular structure is so strengthened that the structure becomes permanent.
  • a subsequent texturing zone consists essentially of a conventional adapter which brings the fixed capillary fibers of the thread 2 in a diffuse condition, by the application of a gaseous or liquid medium, the thread now having the appearance of at least partly protruding staple-fiber ends.
  • the thread can then be wound in a device 10, including for example two rolls, and driven by a conventional mechanism schematically shown at 10a.
  • the inventive process for making textured threads, uses a spindle, preferably in the form of a double-wire spindle, from where the high-twist thread runs to a controllable feed zone in which the desired tension and relaxation are imparted.
  • This zone also includes a heating element for fixing the twist applied to the thread.
  • a cooling zone preferably followed by a texturing device and optionally a winding device.
  • the inventive process is also adapted to produce textured mixed threads as the arrangement provides a supply device 11 associated with the spindle 1, namely for another thread holder 12 from where a thread 2', preferably of viscose material, runs over a guide 13 into the hollow cylinder of the spindle 1 where it is united with the thread 2 provided as in FIG. 1.
  • a thread 2' preferably of viscose material
  • the step is included of bringing the fixed capillary fibers of the united threads into the described diffuse state by the application of a fluid medium, as described earlier, such as in a conventional adaptor which is usually provided in the texturing zone.
  • a process for making single and mixed textured threads without twist recovery or untwisting, from synthetic, preferably continuous, filament or fiber materials, consisting of capillary fibers comprising the steps of continuously feeding the fiber materials from a rotary organ such as a double-wire spindle through a feed zone, heating the materials in the latter, successively cooling the materials, and subjecting the same to ing the step of controlling the moving speed of the fiber materials in the feed zone between pairs of feed-in and outlet rolls so as to regulate their tension.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US00159820A 1970-07-03 1971-07-06 Process for making textured threads without twist recovery or untwisting Expired - Lifetime US3721082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD14856970 1970-07-03
US15982071A 1971-07-06 1971-07-06

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US3721082A true US3721082A (en) 1973-03-20

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US00159820A Expired - Lifetime US3721082A (en) 1970-07-03 1971-07-06 Process for making textured threads without twist recovery or untwisting

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US (1) US3721082A (de)
AT (1) AT341071B (de)
DE (1) DE2122818B2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207730A (en) * 1977-12-30 1980-06-17 Palitex Project Company Gmbh Process and apparatus for bulking textile yarns
US20110154798A1 (en) * 2008-07-30 2011-06-30 Invista North America S.A.R.L. Systems and methods of twisting and heat-setting yarn, and apparatus for twisting yarn and heat-setting yarn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803108A (en) * 1954-01-04 1957-08-20 Universal Winding Co Methods of processing textile yarns
US3034279A (en) * 1957-12-19 1962-05-15 British Celanese Composite textile yarns
US3041816A (en) * 1960-09-29 1962-07-03 Grove Silk Company Method of making sewing thread and product thereof
US3457610A (en) * 1967-12-13 1969-07-29 Monsanto Co Treatment of filaments to develop latent bulkiness therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803108A (en) * 1954-01-04 1957-08-20 Universal Winding Co Methods of processing textile yarns
US3034279A (en) * 1957-12-19 1962-05-15 British Celanese Composite textile yarns
US3041816A (en) * 1960-09-29 1962-07-03 Grove Silk Company Method of making sewing thread and product thereof
US3457610A (en) * 1967-12-13 1969-07-29 Monsanto Co Treatment of filaments to develop latent bulkiness therein

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207730A (en) * 1977-12-30 1980-06-17 Palitex Project Company Gmbh Process and apparatus for bulking textile yarns
US20110154798A1 (en) * 2008-07-30 2011-06-30 Invista North America S.A.R.L. Systems and methods of twisting and heat-setting yarn, and apparatus for twisting yarn and heat-setting yarn
US8528310B2 (en) * 2008-07-30 2013-09-10 Invista North America S.ár.l. Systems and methods of twisting and heat-setting yarn, and apparatus for twisting yarn and heat-setting yarn

Also Published As

Publication number Publication date
DE2122818A1 (de) 1972-02-10
DE2122818B2 (de) 1977-12-29
AT341071B (de) 1978-01-25
ATA410571A (de) 1977-05-15

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