US3924396A - Composite yarn forming method and apparatus - Google Patents

Composite yarn forming method and apparatus Download PDF

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Publication number
US3924396A
US3924396A US294103A US29410372A US3924396A US 3924396 A US3924396 A US 3924396A US 294103 A US294103 A US 294103A US 29410372 A US29410372 A US 29410372A US 3924396 A US3924396 A US 3924396A
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Prior art keywords
groove
roll
yarn
spindle
grooved
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US294103A
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English (en)
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Emilian Bobkowicz
Andrew John Bobkowicz
Margare Lefebvre
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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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads

Definitions

  • a carrier strand under tension, a tacky polymer and staple fibers are introduced into a groove of a rotating, circumferentially grooved roll;
  • the tacky polymer component is cooled and coagulated
  • the obtained yarn is continuously and linearly wound up on a collecting roll.
  • the apparatus for achieving these results basically comprises a rotatable circumferentially grooved roll; means for simultaneously introducing into the groove of said roll the three components mentioned above;
  • tension control means controlling the supply of the carrier strand before it is directed into the groove of the roll; a false twist type spindle following the grooved roll through which the yarn coming out of the groove is passed and by which it is twisted, this spindle being positioned with respect to the grooved roll such as to impart tension and force the strand within the groove against the bottom of the groove; a pulling roll following the spindle to maintain the yarn under positive pull; and wind-up arrangement for linearly winding the obtained spun yam on a collecting roll.
  • COMPOSITE YARN FORMING NEETHOD AND APPARATUS This invention relates -to an improved and simplified system of composite yarn production. More particularly the invention relates to a method and apparatus for producing yarn from three components, namely a carrier strand, a tacky or plastic polymer substrate and staple fibers.
  • novel method of producing composite spun yarn in accordance with the present invention comprises:
  • carrier strand namely carrier strand, tacky polymer and staple fibers, a predetermined twist from an angle such that the carrier strand in the groove is forced against the bottom of said groove while being twisted with the other components of the yarn within said groove;
  • the twist is imparted by means of a false twist type spindle positioned following the grooved roll.
  • the yarn travels from the grooved roll to and through the spindle at any preferred angle whereby a twist is imparted which travels back to the groove of the roll where the three components are twisted, transformed and consolidated into spun yarn while being forced against the bottom of the groove.
  • the grooved roll may be perforated and the fibers held within the groove by suction from within the roll.
  • a jet of air may be directed into the groove at the point where yarn is exiting therefrom.
  • the grooved roll may, on one or both sides of the groove, be provided with a predetermined number of teeth, pins or needles mounted circumferentially and helically to form a V shaped helical arrangement converging towards the center, which performs the function of opening up, collecting and carrying the individual staple fibers from two separate strand feed-in positions towards the cen ter groove of the roll where they are brought into contact with the plastic polymer surface of the carrier before twisting.
  • the fiber opening needles projecting outwardly on the sides of the groove of the roll may also be supplemented by small cutting blades which are mounted in staggered arrangement between such needles and which enable the feed-in of continuous filament tow and conversion of the latter during the feed-in into staple fibers which are then introduced into the groove of the roll.
  • an oriented narrow thin polymer tape can be fibrillated and cut into staple fibers suitable to form a composite spun yarn. This is an optional but preferred embodiment of the invention.
  • the apparatus in accordance with this invention for producing composite spun yarn will comprise:
  • the means for introducing the tacky polymer into the groove of the roll preferably comprise an extruder above the groove from which the tacky polymer is directly extruded into said groove.
  • the means for introducing the carrier strand are preferably adapted to direct said carrier strand through said extruder and into the groove of said grooved roll together with the tacky polymer which thereby coats said carrier strand with a tacky layer of the polymer.
  • the means for introducing the staple fibers preferably comprise licker-in fiber delivery means by which the fibers are opened and directed into the groove of the grooved roll.
  • the circumferential grooved roll may comprise on one or both sides of said groove a plurality of outwardly projecting needles following a helical circumferential path which converges towards said groove to bring continuously the combed out fibers from the fiber feed-in means into contact with the carrier and polymer in said groove for consolidation and transformation by twist into a composite spunyarn.
  • the grooved roll may have perforations leading from the bottom of the groove towards the inside of the roll and suction means may be provided within the grooved roll to' produce suction in the groove from within the roll to aid the collection of the fibers in the groove and to achieve proper control of the fibers during the twisting, thereby counteracting the centrifugal forces produced during high speed operations.
  • means may be provided for directing a jet of air against the yarn exiting from the groove of the grooved roll.
  • FIG. 1 represents an elevation, partly sectional view of one embodiment of the apparatus suitable for carrying out the method of the present invention, with sections AA showing two different types of the groove, with and without perforations;
  • FIG. 2 is an elevation view of another preferred embodiment of the apparatus of this invention wherein the rolls are provided with outwardly projecting needles, with section B-B showing the arrangement of the perforated groove in such embodiment.
  • a rotatable circumferentially grooved roll 1 the groove of which is preferably pointed as shown in sections A-A and may also be provided with perforations 3 leading towards the inside .of said roll 1.
  • a suction device (not shown) for producing suction within the perforated circumferential groove of roll 1.
  • An extruder 3 is mounted just above the groove of the circumferential roll 1 for extruding a tacky polymer, introduced by inlet 4 into said extruder.
  • a carrier strand 5 is unwound from bobbin 6 and is directed by means of carrier tension control rollers 7 and 8 into and through extruder 3.
  • Licker-in device 9 is used to supply staple fibers into the groove of roll 1 and suction from within the roll imparted through perforations 2 will facilitate holding of these fibers against the groove, when such perforations and suction are provided.
  • the staple fibers are combed out of the supply material 10, which may be in the form of webs, slivers or other arrangements, by means of the licker-in rollers provided in the licker-in device 9.
  • Air blowing means 11 may be mounted within one of these rollers for blowing the staple fibers out of the licker-in device and into the groove of roll 1.
  • a twist imparting spindle 12 of the false twist type which, in this case is a false twist friction type spindle.
  • Yarn 15 passing through said spindle is imparted with desired twist which is transmitted towards portion 14 of the circumferential groove within the grooved roll 1 where the actual twisting and formation of the yarn takes place.
  • the arrangement of spindle 12 is such that usually it will keep yarn 15 at an acute angle with respect to the horizontal and thereby will hold it under tension and will pull against the bottom of the groove, carrier strand 5 coated with the tacky polymer substrate and surrounded by the staple fibers at the point where the yarn is twisted and formed within the groove, which is approximately point 14 shown on the drawing.
  • a yarn pulling and advancing roll 16 is provided following spindle 12 which imparts positive pull and tension to the yarn.
  • spindle 12 which imparts positive pull and tension to the yarn.
  • a pair of nip rollers such as rollers 7 and 8 or standard multiple wrap advancing rolls can be used for this purpose.
  • a wind-up arrangement 17 is provided for winding up the obtained yarn directly on collecting roll 18.
  • the carrier strand 5 is removed from bobbin or carrier supply 6 and is forwarded by carrier strand tension control rolls 7 and 8 under tension into and through the middle of extruder 3.
  • a suitable polymer is also introduced into said extruder through opening 4 and is extruded therefrom in such a way as to coat carrier strand 5 which passes through said extruder and into the groove of circumferentially grooved roll 1.
  • a control quantity of staple fibers is forwarded into the grooved roll 1 by licker-in fiber delivery device 9 and also introduced into the groove of the same roll 1. These fibers may be retained within the groove by means of suction means (not shown) within roll 1 if the groove is provided with perforations 2.
  • the fibers are combed out and forwarded by the licker-in device 9 from any desired fiber supply 10 such as tape, web, sliver, roving, tow and the like, of any suitable form. These are opened within the licker-in device and then delivered into the groove of roll 1 by blowing means 1 l.
  • any desired fiber supply 10 such as tape, web, sliver, roving, tow and the like, of any suitable form.
  • the obtained yarn 15 is pulled and advanced by suitable roller 16 and is wound by wind-up device 17 on collecting roll 18 in a continuous and linear fashion. Between point 14 and spindle 12 the yarn is also cooled to coagulate the tacky polymer.
  • the groove of roll 1 is preferably of a triangular or pointed shape.
  • an air jet 20 which directs air under pressure on yarn 15 just as it exits the groove of roll 1. This air helps in fiber consolidation and improves lay. It also provides a more rapid cooling and coagulation of the tacky polymer within the formed yarn 15.
  • the fiber supply is directly fed by supply arrangement 19 onto the surface of grooved roll 21 provided with outwardly projecting needles 22 mounted in a converging, circumferential'helical path 24 on both sides of groove 23.
  • the fiber supply 10 may thus be fed from one or two sources of fibrous material onto the needled surface of the roll 21 onto one or both sides of the groove 23.
  • the fibers from this supply 10 will be combed out by the needled arrangement and will be continuously conveyed towards and into the central groove 23 due to the converging circumferential helical out fibers by needles 22 to the grooved center 23 of the roll 21.
  • the fibers will then be drawn into the groove 23 by air suction from within and brought into contact with the carrier strand coated with the tacky polymer which is also introduced into said groove from extruder 3.
  • a central pressure roll 26 the purpose of which is to restrain the fibers deposited into the groove 23.
  • This pressure roll 26 may also have a circumferential groove in the middle thereof so as to prevent contact with the tacky polymer coated on the carrier strand before said polymer is consolidated with the staple fibers.
  • pressure roll 26 generally serves to provide tension to the strand to enhance the consoli dation and formation of the spun yarn 1.5 while twisting torque is applied by spindle 12.
  • the alternative embodiment shown in FlG. 2 provides for a combined licker-in and consolidation roll 21 wherein the licker-in effect is achieved by the special arrangement of needles 22.
  • One or both sides of the needled licker-in roll 21 may also be provided with outwardly protruding cutting blades 27. These small blades of a razor blade type are mounted between the needles in a staggered arrangement and are intended to cut the fiber supply 110 which it is introduced in. the form of a continuous filament tow or the like for conversion into staple fibers.
  • fibers can be supplied in staple and carrier filament form. Staple fibers of any preferred nature or type can be used. Also, any ready carrier strand in filament, ribbon or other form can be employed and also any extrudable resin that will produce desirable properties within the yarn can be utilized.
  • Method of producing composite spun yarn which comprises: forwarding a carrier strand under tension into a groove of a rotating circumferentially grooved roll; simultaneously introducing into said groove a polymer in tacky condition and also introducing thereinto staple fibers; imparting to the three components within the groove, namely carrier strand, tacky polymer and staple fibers, a predetermined twist from an angle such that the strand in the groove is forced against the bottom of said groove while being twisted with the other components of the yarn within said groove; cooling to coagulate the polymer component of the twisted yarn; and linearly and continuously winding up the obtained twisted yarn on a collecting roll.
  • Method according to claim 1 further comprising directing a jet of air into the groove substantially at a point where yarn is exiting therefrom.
  • Apparatus for producing composite spun yarn which comprises: a rotatable circumferentially grooved roll; means for simultaneously introducing into the groove of said roll three components, namely a carrier strand, a tacky polymer and staple fibers; tension control means through which said carrier filament passes before being directed into the groove of said roll; a spindle following said grooved roll through which the yarn coming out of the groove is passed, said spindle imparting a twist to said yarn which is transmitted back into the groove where the three components are thus twisted into spun yarn, said spindle being positioned at an angle with respect to said grooved roll such as to impart tension and force the strand in the groove against the bottom of said groove; at least one pulling device following said spindle to maintain the yarn under positive pull; and a wind-up arrangement for linearly winding the obtained composite spun yarn on a collecting roll.
  • Apparatus according to claim 5, wherein the means for introducing the tacky polymer comprise an extruder above the groove of said grooved roll from which the tacky polymer is extruded into said groove.
  • Apparatus according to claim 6, wherein said means for introducing the carrier strand are adapted to direct said filament through said extruder and into the groove of said grooved roll together with the tacky polymer which is thereby coated on said strand.
  • the means for introducing the'staple fibers comprise lickerin fiber delivery means by which the fibers are opened and directed into the groove of the grooved roll.
  • Apparatus according to claim 5 further comprising means for directing a jet of air against the yarn exiting from the groove of said grooved roll.
  • Apparatus according to claim 5 wherein said roll has outwardly projecting needles on at least one side of the groove, which are arranged in a converging helical circumferential path on the roll surface, said needles combing out the fibers from a direct fiber supply and conveying them into the groove of the roll.
  • Apparatus according to claim 5 further comprising a pressure roller mounted for pressurizing rotational movement against the groove of said roll, said roller restraining the fibers within the groove substantially without pressing the tacky polymer component.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Ropes Or Cables (AREA)
US294103A 1972-07-06 1972-10-02 Composite yarn forming method and apparatus Expired - Lifetime US3924396A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA146543 1972-07-06

Publications (2)

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USB294103I5 USB294103I5 (fr) 1975-01-28
US3924396A true US3924396A (en) 1975-12-09

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US294103A Expired - Lifetime US3924396A (en) 1972-07-06 1972-10-02 Composite yarn forming method and apparatus

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US (1) US3924396A (fr)
JP (1) JPS5227740B2 (fr)
AR (1) AR198406A1 (fr)
AT (1) AT341387B (fr)
AU (1) AU468197B2 (fr)
BE (1) BE800567A (fr)
BR (1) BR7303818D0 (fr)
CA (1) CA928596A (fr)
CH (3) CH569107A5 (fr)
DE (1) DE2256247C3 (fr)
EG (1) EG12847A (fr)
ES (1) ES408048A1 (fr)
FR (1) FR2236976B1 (fr)
GB (1) GB1361172A (fr)
IT (1) IT982437B (fr)
NL (1) NL152937B (fr)
SE (1) SE399571B (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095403A (en) * 1976-04-20 1978-06-20 Institut Textile De France Method of making fancy yarn and fancy yarn
US4209965A (en) * 1976-12-21 1980-07-01 Bobkowicz E Universal spinning system
US4244174A (en) * 1977-11-03 1981-01-13 The Bobtex Corporation, Ltd. Poy yarn compositions
US4470941A (en) * 1982-06-02 1984-09-11 Bioresearch Inc. Preparation of composite surgical sutures
US4488397A (en) * 1982-01-26 1984-12-18 Asa S.A. Device for stretching, condensing and transporting a rove of fibers during a spinning operation
US4489540A (en) * 1982-01-26 1984-12-25 Asa S.A. Process and device for obtaining a spun yarn of fibres comprising an internal core and novel types of spun yarns thus made
US4514349A (en) * 1981-04-24 1985-04-30 Barry Lipschitz Method and means for producing yarn
US4676062A (en) * 1984-01-21 1987-06-30 Brockmanns K J Method and device for the formation of spinning fibers
US4724668A (en) * 1984-01-21 1988-02-16 W. Schlafhorst & Co. Method and apparatus for the formation of spinning fibers
US5694759A (en) * 1996-03-08 1997-12-09 Waverly Mills, Inc. Process for producing polyester yarns on an open end spinning machine and yarns thus produced
WO2003066944A1 (fr) * 2002-02-08 2003-08-14 Tissage Et Enduction Serge Ferrari Sa Fil gaine, textile et procede de fabrication d'un tel fil
US20050153820A1 (en) * 2002-03-20 2005-07-14 Daikin Industries, Ltd. Needle blade roll for quasi-cotton producing device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909317C2 (de) * 1979-03-09 1982-04-08 Rolladen-Spettmann, Holsteiner Rolladen- u. Markisenfabrik, Ing. Bernhard Spettmann, 2350 Neumünster Einteiliger Markisenkasten
JPS5760479A (en) * 1980-09-30 1982-04-12 Pentel Kk Handwriting information input pen
FR2529234A1 (fr) * 1982-06-29 1983-12-30 Asa Sa Procede et dispositif pour la realisation de files de fibres comportant une ame
WO1986001842A1 (fr) * 1984-09-21 1986-03-27 National Research Development Corporation Filage de fil simple
DE3441495A1 (de) * 1984-11-13 1986-05-22 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-spinnverfahren und vorrichtung zu seiner durchfuehrung
GB8901416D0 (en) * 1989-01-23 1989-03-15 Lawrence Carl A Preparation of fibres for spinning
CN107385613A (zh) * 2017-07-18 2017-11-24 山东岱银纺织集团股份有限公司 一种包芯包缠长丝短纤复合纱及生产装置
CN115613175B (zh) * 2022-10-21 2024-02-06 浙江越剑智能装备股份有限公司 一种复合型高速加弹机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289568A (en) * 1938-08-16 1942-07-14 Bloch Godfrey Textile material and method and apparatus for making same
US2743572A (en) * 1951-09-11 1956-05-01 Textile Machinery Corp Textile yarn producing apparatus
US3445993A (en) * 1966-03-09 1969-05-27 Vyzk Ustav Bavlnarsky Method of and apparatus for producing core yarns
US3494118A (en) * 1967-11-20 1970-02-10 Bobkowicz E Universal open-end spinning method of multicomponent yarns production
US3548581A (en) * 1968-10-02 1970-12-22 Bobkowicz E Method and apparatus for ringless spinning of fiber-polymer yarns

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA847099A (en) * 1970-07-21 Bobkowicz Emilian Universal open-end spinning method of multicomponent yarns production
CA833444A (en) * 1970-02-03 Bobkowicz Emilian Manufacture of fibertapes
US731381A (en) * 1902-06-19 1903-06-16 John Smedley Ltd Knitted pants and their manufacture.
GB731381A (en) * 1951-10-02 1955-06-08 Aberfoyle Mfg Company Improvements in or relating to apparatus for producing strand material utilizable astextile yarns
US2997837A (en) * 1959-12-22 1961-08-29 Du Pont Slub yarn product
NL143002B (nl) * 1966-07-07 1974-08-15 Hollandse Signaalapparaten Bv Werkwijze voor het vervaardigen van een twistloos garen van stapelvezelmateriaal en garen verkregen door toepassing van deze werkwijze.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289568A (en) * 1938-08-16 1942-07-14 Bloch Godfrey Textile material and method and apparatus for making same
US2743572A (en) * 1951-09-11 1956-05-01 Textile Machinery Corp Textile yarn producing apparatus
US3445993A (en) * 1966-03-09 1969-05-27 Vyzk Ustav Bavlnarsky Method of and apparatus for producing core yarns
US3494118A (en) * 1967-11-20 1970-02-10 Bobkowicz E Universal open-end spinning method of multicomponent yarns production
US3548581A (en) * 1968-10-02 1970-12-22 Bobkowicz E Method and apparatus for ringless spinning of fiber-polymer yarns

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095403A (en) * 1976-04-20 1978-06-20 Institut Textile De France Method of making fancy yarn and fancy yarn
US4209965A (en) * 1976-12-21 1980-07-01 Bobkowicz E Universal spinning system
US4244174A (en) * 1977-11-03 1981-01-13 The Bobtex Corporation, Ltd. Poy yarn compositions
US4514349A (en) * 1981-04-24 1985-04-30 Barry Lipschitz Method and means for producing yarn
US4488397A (en) * 1982-01-26 1984-12-18 Asa S.A. Device for stretching, condensing and transporting a rove of fibers during a spinning operation
US4489540A (en) * 1982-01-26 1984-12-25 Asa S.A. Process and device for obtaining a spun yarn of fibres comprising an internal core and novel types of spun yarns thus made
US4470941A (en) * 1982-06-02 1984-09-11 Bioresearch Inc. Preparation of composite surgical sutures
US4724668A (en) * 1984-01-21 1988-02-16 W. Schlafhorst & Co. Method and apparatus for the formation of spinning fibers
US4676062A (en) * 1984-01-21 1987-06-30 Brockmanns K J Method and device for the formation of spinning fibers
US5694759A (en) * 1996-03-08 1997-12-09 Waverly Mills, Inc. Process for producing polyester yarns on an open end spinning machine and yarns thus produced
US5699659A (en) * 1996-03-08 1997-12-23 Waverly Mills, Inc. Process for producing substantially all-polyester yarns from fine denier feed fibers on an open end spinning machine
WO2003066944A1 (fr) * 2002-02-08 2003-08-14 Tissage Et Enduction Serge Ferrari Sa Fil gaine, textile et procede de fabrication d'un tel fil
FR2835852A1 (fr) * 2002-02-08 2003-08-15 Ferrari S Tissage & Enduct Sa Fil gaine, textile et procede de fabrication d'un tel fil
US20040226277A1 (en) * 2002-02-08 2004-11-18 Tissage Et Enduction Serge Ferrari Sa Jacketed yarn, textile and method of producing such a yarn
US7134266B2 (en) 2002-02-08 2006-11-14 Tissage Et Enduction Serge Ferrari Sa Jacketed yarn, textile and method of producing such a yarn
US20050153820A1 (en) * 2002-03-20 2005-07-14 Daikin Industries, Ltd. Needle blade roll for quasi-cotton producing device

Also Published As

Publication number Publication date
DE2256247C3 (de) 1978-05-03
ATA123673A (de) 1977-05-15
BR7303818D0 (pt) 1974-02-12
AU468197B2 (en) 1976-01-08
CA928596A (en) 1973-06-19
ES408048A1 (es) 1976-02-16
USB294103I5 (fr) 1975-01-28
FR2236976A1 (fr) 1975-02-07
AU5070473A (en) 1974-07-04
DE2256247A1 (de) 1974-01-24
JPS5227740B2 (fr) 1977-07-22
CH569107A5 (fr) 1975-11-14
AT341387B (de) 1978-02-10
CH570485B5 (fr) 1975-12-15
EG12847A (en) 1980-03-31
BE800567A (fr) 1973-10-01
SE399571B (sv) 1978-02-20
JPS4935646A (fr) 1974-04-02
NL152937B (nl) 1977-04-15
GB1361172A (en) 1974-07-24
AR198406A1 (es) 1974-06-21
DE2256247B2 (de) 1977-09-15
NL7216063A (fr) 1974-01-08
FR2236976B1 (fr) 1976-04-30
IT982437B (it) 1974-10-21
CH410773A4 (fr) 1975-06-13

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