US3474510A - Process and a device for producing interlaced filament synthetic and artificial yarns - Google Patents

Process and a device for producing interlaced filament synthetic and artificial yarns Download PDF

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Publication number
US3474510A
US3474510A US683237A US3474510DA US3474510A US 3474510 A US3474510 A US 3474510A US 683237 A US683237 A US 683237A US 3474510D A US3474510D A US 3474510DA US 3474510 A US3474510 A US 3474510A
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yarn
filaments
yarns
fluid
nozzle
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Expired - Lifetime
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US683237A
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English (en)
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Renato Torsellini
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H2700/00—Spinning or twisting machines; Drafting devices
    • D01H2700/24—Spinning or twisting machines of different kinds

Definitions

  • Interlaced filament artificial and synthetic yarns are produced by means of the action of a fluid jet on the yarn running under tension, the yarn, or part of the filaments composing the yarn, being hit at the side opposite the nozzle from which the fluid is discharged, by pulses of the suitably conveyed fluid itself, said pulses acting on the fluid from different directions with a controlled periodicity.
  • the present invention relates to a process and a device for producing interlaced filament synthetic and artificial yarns.
  • An integrating part of this invention is the product obtained by the aforesaid product and device.
  • the filaments at the moment of the embodiment of the yarns, in most of the processes at present used are parallel, i.e., the yarn at the end of the extrusion process consists of parallel filaments.
  • FIGURES 1 and 2 respectively, show fragmentary dia- 3,474,510 Patented Oct. 28, 1969 grammatic horizontal and vertical sectional views of the device consisting of the nozzle 1 for a compressed fluid (a gas) directed against the filament bundle 2 running, guided by the yarn guides 3 and 3, in front of the nozzle itself.
  • a compressed fluid a gas
  • FIGURES 3 to 8 show the movement of the fluid jet and pulses acting on the filament bundle.
  • FIGURES 9 and 10 show the filament bundle being submitted to the action of the fluid jet.
  • FIGURES 11 to 13 show the different length of the fluid path inside the recess of the body.
  • the recess 4 On the axis of the nozzle 1, behind the filament bundle 2, is located the recess 4, provided in the body 5, divided into two branches 6 and 6', inclined with respect to the axis of symmetry, by a central body 7.
  • FIGS. 3-8 The operation of the device is shown in FIGS. 3-8, by way of example.
  • the gas jet 8 coming out from nozzle 1 hits the filament bundle 2, but part of said jet 9 enters into the branch 6 of the recess 4 and issues from the duct 6 hitting from behind the part 21 of the filaments, moving them towards the direction of the arrow 10 (FIGS. 3 and 4).
  • the jet 8 issues from the recess 4 through the duct 6' hitting from behind the filament group 21 and compelling the part 211 thereof to move towards the direction of the arrow 11 and imparting a rotatory movement to the unit of the filaments forming the groups 22 and 211 (FIG. 6).
  • the displacement of the filament group 211 and the rotation of the group 22 will shut off the flow 8 through the duct 6 while opening the passage through the duct 6 to the flow 9 (FIG. 7).
  • the flow 9 issuing from the duct 6 (FIG. 8) hits from behind the group 22 of filaments, compelling part thereof to move towards the direction of the arrow 12, towards the group 210 and imparting to the unit a rotational movement.
  • the filament bundle submitted to the action of the fluid jet will undergo, totally or partially, transverse displacements with respect to the jet (FIG. 9) and rotational movements, and said movements will so combine in a 8 shape (FIG. 10) as to cause the filaments to interlace with one another, so that the yarn thereby composed will become cohesioned and capable of being utilized in the subsequent textile operations just as a twisted yarn.
  • the frequency of the transverse displacements of the filament bundle in front of the fluid jet determines the distance between the bonding points along the thread, in function of the speed with which the filament bundle or yarn moves in front of the nozzle.
  • said frequency depends upon the count of the filament bundle, upon the tension to which the filament bundle is submitted in the portion of path where the fluid jet acts, upon the spacing apart of the yarn guides between which the fluid jets are located, upon the friction of the filament bundle on the guides, and upon the dimension of the passages through which the filament bundle is caused to pass in order to be submitted to the action of the fluid jets.
  • the device according to the present invention allows the frequency of the transverse oscillations of the filament bundle in front of the fluid jet to be fixed and kept under control, so that a good regularity of the distances between the successive bonding points will be obtained, with a valve dispersion much more limited than that observed on yarns worked with the known and normally utilized devices.
  • FIGS. 3 and 4 show that the part of the fluid jet enters the branch 6 and after having passed through the recess 4, issues from the duct 6 striking the filament bundle 2'.
  • the thrust towards the direction of the arrow tending to move the filament bundle 2' transversely to the other side of the fluid jet issuing from the nozzle 1 is generated by the flow 9 after said flow has moved through the duct 6, the recess 4 and the duct 6 and is therefore delayed by the time necessary to move along said path.
  • the pulses in the direction of the arrow 10 and in contrary direction will follow at time intervals equal to that necessary for the fluid flow to move the path 6, 4, 6' and will determine the frequency of the transverse oscillation of the filament bundle.
  • the invention can be used for all artificial and synthetic yarns, particularly rayon, acetate, polyamidic yarns, polyester yarns, polyurethane yarns, etc.
  • This invention can be used, as aforesaid for the yarns with parallel filaments, as well as for the yarns with low twist filaments.
  • the yarns produced according to the invention are useful for all purposes for which usual twisted yarns are employed, particularly in the manufacture of fabrics in per se known manner.
  • This point could be, for instance, in the continuous rayon process, the passage of the yarn from the dryer or the humidifier to the winding device; in the dry spinning, between the spinning cell and the winding device; in the spinning from molten masses, in the spinning machine itself (in case of stretch spinning) before the winding of the yarn on the collecting device or on the stretching machine before the collecting device.
  • the running speed of the yarn varies, being the speeds dictated by production exigencies which find different limits in the different processes for extruding the fibers.
  • the characteristic data of the use conditions change within limits which are quite large, because besides the factors now indicated, also the nature and the count of the yarn to be treated, the number of its filaments, the number of the interlacing to be obtained for unity of length, exert their influence.
  • the nozzle bore can be 0.2 to 10 mm. in diameter, and the pressure of the fluid can change from 0.5 to 25 atm.
  • the device according to the invention On a dry spinning machine for acetate production, the device according to the invention, according to FIGS. 1 and 2, will be mounted between the spinning cell and the collecting member.
  • the spinning speed is 600 meters per minute.
  • the yarn has 20 filaments, and a count of deniers.
  • the diameter of the nozzle bore is 0.8 mm., and the pressure at the nozzle 3 atm.
  • the running yarn is submitted to a tensile stress of 0.04 gram per denier.
  • a yarn with filament interlaced at regular intervals will be obtained.
  • a device for producing interlaced filament artificial and synthetic yarns consisting essentially of a nozzle 1 and a body 5, comprising branches 6, 6', recess 4 and a central body 7, said branches 6, 6' being inclined with respect to the axis of symmetry of the central body, the nozzle being located in front to the body 5, its axis of symmetry coinciding with the extension of the symmetry axis of this body.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US683237A 1966-11-17 1967-11-15 Process and a device for producing interlaced filament synthetic and artificial yarns Expired - Lifetime US3474510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4293366 1966-11-17

Publications (1)

Publication Number Publication Date
US3474510A true US3474510A (en) 1969-10-28

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US683237A Expired - Lifetime US3474510A (en) 1966-11-17 1967-11-15 Process and a device for producing interlaced filament synthetic and artificial yarns

Country Status (7)

Country Link
US (1) US3474510A (fr)
BE (1) BE706619A (fr)
CH (1) CH471917A (fr)
DE (1) DE1710028A1 (fr)
ES (1) ES347211A1 (fr)
GB (1) GB1165929A (fr)
NL (1) NL6715617A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5184381A (en) * 1990-11-28 1993-02-09 Basf Corporation Apparatus for producing soft node air entangled yarn
US5195313A (en) * 1990-11-28 1993-03-23 Basf Corporation Method for evaluating entangled yarn
US6397444B1 (en) * 1994-05-24 2002-06-04 University Of Manchester Institute Of Science & Technology Apparatus and method for texturing yarn
US6745598B2 (en) 2000-04-06 2004-06-08 University Of Manchester Institute Of Science & Technology Precision delivery system
US20050011061A1 (en) * 2001-09-29 2005-01-20 Patrick Buchmuller Method and device for producing a fancy knotted yarn
US6868593B1 (en) * 1999-09-22 2005-03-22 Ryuji Mitsuhashi Tandem interlacing textile jet nozzle assembly
US20090031693A1 (en) * 2005-03-20 2009-02-05 Christian Simmen Method and Entanglement Nozzle for Reproducing Knotted Yearn

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA554150A (fr) * 1958-03-11 Courtaulds Limited Traitement de fils
US2985995A (en) * 1960-11-08 1961-05-30 Du Pont Compact interlaced yarn
US2990671A (en) * 1958-08-01 1961-07-04 Du Pont Multiple vortex pneumatic twister and method of producing alternate twist yarn
US3115691A (en) * 1961-05-31 1963-12-31 Du Pont Apparatus for interlacing multifilament yarn
US3125793A (en) * 1964-03-24 Interlaced yarn by multiple utilization of pressurized gas
US3167847A (en) * 1961-11-28 1965-02-02 American Enka Corp Treatment of multi-filament yarn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA554150A (fr) * 1958-03-11 Courtaulds Limited Traitement de fils
US3125793A (en) * 1964-03-24 Interlaced yarn by multiple utilization of pressurized gas
US2990671A (en) * 1958-08-01 1961-07-04 Du Pont Multiple vortex pneumatic twister and method of producing alternate twist yarn
US2985995A (en) * 1960-11-08 1961-05-30 Du Pont Compact interlaced yarn
US3115691A (en) * 1961-05-31 1963-12-31 Du Pont Apparatus for interlacing multifilament yarn
US3167847A (en) * 1961-11-28 1965-02-02 American Enka Corp Treatment of multi-filament yarn

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5184381A (en) * 1990-11-28 1993-02-09 Basf Corporation Apparatus for producing soft node air entangled yarn
US5195313A (en) * 1990-11-28 1993-03-23 Basf Corporation Method for evaluating entangled yarn
US6397444B1 (en) * 1994-05-24 2002-06-04 University Of Manchester Institute Of Science & Technology Apparatus and method for texturing yarn
US6868593B1 (en) * 1999-09-22 2005-03-22 Ryuji Mitsuhashi Tandem interlacing textile jet nozzle assembly
US6745598B2 (en) 2000-04-06 2004-06-08 University Of Manchester Institute Of Science & Technology Precision delivery system
US20050011061A1 (en) * 2001-09-29 2005-01-20 Patrick Buchmuller Method and device for producing a fancy knotted yarn
US7353575B2 (en) * 2001-09-29 2008-04-08 Oerlikon Heberlein Temco Wattwil Method and device for producing a fancy knotted yarn
US20090031693A1 (en) * 2005-03-20 2009-02-05 Christian Simmen Method and Entanglement Nozzle for Reproducing Knotted Yearn
US7568266B2 (en) * 2005-03-20 2009-08-04 Oerlikon Heberlein Temco Wattwil Ag Method and entanglement nozzle for reproducing knotted yarn

Also Published As

Publication number Publication date
DE1710028A1 (de) 1971-10-07
CH471917A (fr) 1969-04-30
BE706619A (fr) 1968-04-01
GB1165929A (en) 1969-10-01
NL6715617A (fr) 1968-05-20
ES347211A1 (es) 1969-05-16

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