US3438194A - Process for the manufacture of a composite yarn which is provided with spaced slubs - Google Patents

Process for the manufacture of a composite yarn which is provided with spaced slubs Download PDF

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Publication number
US3438194A
US3438194A US680194A US3438194DA US3438194A US 3438194 A US3438194 A US 3438194A US 680194 A US680194 A US 680194A US 3438194D A US3438194D A US 3438194DA US 3438194 A US3438194 A US 3438194A
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US
United States
Prior art keywords
yarn
component
slubs
thread guide
composite yarn
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.)
Expired - Lifetime
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US680194A
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English (en)
Inventor
Giacomo Cerutti
Giorgio Faraci
Fabio Tovaglieri
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Bemberg SpA
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Bemberg SpA
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Publication of US3438194A publication Critical patent/US3438194A/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/36—Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/908—Jet interlaced or intermingled

Definitions

  • the invention relates to a process for the manufacture of a yarn which consists of two or more component yarns and which, along its length, is provided with spaced slubs, in which process the feed rate of at least one of the component yarns is varied, and the assembled component yarns are treated in a jet device with a turbulent stream of a gaseous medium and subsequently, by way of a traversing twisting ring with a traveller revolving thereon, wound to a package on a tube placed on the rotating twisting spindle.
  • a process of this type and the yarn manufactured thereby are known.
  • the known yarns have the disadvantage that their handle does not fully satisfy the requirements made in connection with certain uses.
  • the invention has for its object to obviate the abovementioned disadvantage.
  • the process according to the invention is characterized in that the spaced slubs in the composite yarn are formed by intermittently practically stopping the supply of one of the component yarns for short periods of time and simultaneously reducing the tension in the other component yarn or yarns.
  • spaced slubs which impart to the yarn according to the invention a special handle, which renders the yarn more suitable for special applications in the textile trade.
  • the time during which the supply of one of the component yarns is stopped is according to the invention about 2 to 5 seconds.
  • a favourable embodiment of the process according to the invention is characterized in that the tension in the component yarn of which the supply is intermittently stopped rises during the stop to a value of about 0.6 grammes per denier.
  • the speed of the intermittently stopped component yarn preferably is, between the stops, about 200 to 300 m./ min.
  • the size of the slubs formed on the composite yarn is almost constant along the composite yarn, provided that the thread guide, which feeds one component yarn to the jet device, is in a fixed position.
  • the size of said slubs, along the same length of composite yarn, both as to thickness and as to length to be greatly varied.
  • short and thick slubs as well as longer and thin slubs should be provided.
  • a composite yarn having, along its length, spaced slubs of variable size, by causing the thread guide to continuously vary its position with respect to the feed point of the second component yarn, in accordance with a predeter- 3,438,194 Patented Apr. 15, 1969 mined program according to the particular requirements of the composite yarn to be formed.
  • FIG. 1 schematically shows the path of the yarns at one winding position, where two drawn component yarns are combined to a composite yarn.
  • FIG. 2 shows another embodiment having a mobile thread guide.
  • FIGS. 3 and 4 show two illustrative mechanisms suitable for providing a reciprocating movement of the thread guide of the embodiment of FIG. 2.
  • a component yarn 1 is passed through a thread guide 2, over the tensioning pins 3 and 4, and through an adjustable yarn tensioning device 5, which may, for instance, be a known disk tensioner. Subsequently, the component yarn 1 is passed by way of a thread guide 6 to a known jet device 7, in which, under the influence of a turbulent air stream, the component yarn 1 is entangled with the other component yarn 8 to form a composite yarn 9.
  • a twisting ring 10 which traverses in the direction indicated by the arrows, and a traveller revolving thereon the composite yarn 9 is wound on to a tube 11, which is mounted on a driven twisting spindle (not shown).
  • the other component yarn 8 is passed through a thread guide 12 and over tensioning pins 13 and 14, and is given a few wraps around a pressure roller 15 with idler pulley 16.
  • the pressure roller 15 presses on a driven roller 17, and is mounted in a lever 18, which can. swing on a shaft 19.
  • the pressure roller 15 with idler pulley 16 and the driving roller 17 together form the supply system for the component yarn 8.
  • the component yarn 8 After the component yarn 8 has left the yarn feed rollers 15, 16, 17 it is passed to the tangling device 7 where it is entangled with the component yarn 1 to form the composite yarn 9.
  • a suitable current source feeds a circuit 20, which comprises a switch 21 which is operated by a switching wheel 22 rotating in the direction indicated by the arrow and provided with irregularly spaced switching pins 23, which are adapted to open the circuit 20.
  • relays 24, 25 and 26, which are of a known type, are excited.
  • the relay 24 is excited, the arm of the lever 18 is pulled, as a result of which the pressure roller 15 disengages the driving roller 17, so that the pressure roller is not driven any longer.
  • a magnetic brake provided in the pressure roller 15 is operated to brake and stop said roller 15. Excitation of the relay 26 reduces the tension of the supplied component yarn 1 through the adjustable yarn tensioning device 5.
  • the twist inserted into the composite yarp 9 owing to the winding process runs back along the yarn to a point upstream of the jet device 7.
  • the tension in the component yarn 8 then rises to, for instance, 0.6 grammes per denier, and because the tension in the component yarn 1 has becomevery low, the component yarn 1 is, over a short distance, wound around the component yarn 8, as a result of which there is formed in the yarn a short slub 28.
  • the component yarn 8 pulls the component yarn 1 towards itself through the top eyelet 6, which, as can be seen from the drawing, limits the size of the slubs.
  • the tension in the component yarn 1 is about 0.1 to 0.25 grammes per denier, and the tension in the component yarn 8 is about :05 to 0.15 grammes per denier.
  • the denier of the component yarn 1 was 40 20 filaments) and the denier of the component yarn 8 was 70 (20 filaments), and the speed of the twisting spindle was about 5000 r.p.m.
  • the component yarn 1 (shown in solid line) is passed through a mobile thread guide 30 (corresponding to the fixed thread guide 6 of FIG. 1), which occupies the position A, toward the jet device 7, of a known type, in which, under the action of a turbulent air stream, the component yarn 1 is entangled with the second component yarn 8, to form a composite yarn 9, which is, thereafter wound onto a tube mounted on a driven twisting spindle (not shown in. the FIG. 2).
  • the thread guide 30 is connected to a device which provides the reciprocating movement of the thread guide 30, said device being enclosed in a casing 31, which is mounted on a suitable support, e.-g. the wall 32.
  • a suitable support e.-g. the wall 32.
  • the component yarn 1 being now positioned along the dash-and-dot line 34, upon stopping the feed of the component yarn 8 and simultaneously releasing the tension on the component yarn 1, the latter is as before wound around the com ponent yarn 8, thus forming the slub 28", but it is now distributed along the radial lines 35. It is evident that in this second case the slub obtained is thicker and shorter than the slubs formed when the thread guide 30 is in the position A.
  • the thread guide 30 makes an alternative reciprocating motion as indicated by the arrow 47.
  • This motion i.e. from the position A to the position B and vice versa, may be effected during the motion of both the component yarns, but, if so required, it may also be effected during the feed stopping of the component yarn 8.
  • sequence of the slubs 28' and/or 28" is by no means necessarily alternated.
  • a program can be predetermined, so that the sequence of said slubs is in accordance with a desired succession, this being achieved by well-known means, as for example, mechanical or electrical scheduling apparatus.
  • FIGS. 3 and 4 show, as aforesaid, two devices suitable for imparting to the thread guide 30 said reciprocating motion. It should, however, be stated that the invention is in no way limited to said embodiments, a number of other devices being conceivable, e.g. electrical or pneumatic devices, which are contemplated in the scope of the invention.
  • the thread guide eyelet 30 is connected to the link motion mechanism 36.
  • the wheel 37 driven by motor means, not shown, in the direction of the arrow 38, is provided with a pin 39 eccentrically fixed thereon; the pin 39, which is inserted into the slot 40 of the link motion mechanism 36, causes a reciprocating motion of the latter, and, as a consequence, of the thread guide30.
  • the thread guide 30 is connected to a rack 41.
  • rack 41 To the rack 41 there are geared two segmental partially toothed gears 42 and 43, which are also capable of being mutually geared.
  • the gear 42 In the position shown in FIG. 4, the gear 42 being on the point of engaging, in the direction of the arrow 48, the gear 43 through its toothed sector 44; the gear 43 in turn being engaged through its toothed sector 45 with the rack 41.
  • the gear 42 engages the gear 43 the rack 41 is caused to translate to the right side in FIG. 4, and as a consequence also the thread guide 30, being connected to the rack 41, is likewise translated.
  • the position of the thread guide is varied by changing the distance of the thread guide with respect to the other component yarn.
  • this position may be varied also with this distance kept constant, provided that the reciprocating motion is made parallel to the second component yarn.
  • the size variation of the spaced slubs is obtained when the thread guide eyelet is kept in fixed position during the formation of the slub and successively is caused to move during the formation of the next slub. In this latter case the slub will be longer and thinner.
  • a process for the manufacture of a composite yarn which consists of at least two component yarns and which, along its length, is provided with spaced slubs, in which process the feed rate of at least one of the component yarn is varied, and the assembled component yarns are treated in a jet device with a turbulent stream of a gaseous medium and subsequently, by way of a traversing twisting ring with a traveller revolving thereon, wound to a package on a tube placed on the rotating twisting spindle, characterized in that the spaced slubs in the composite yarn are formed by intermittently practically stopping the supply of one of the component yarns for short periods of time and simultaneously reducing the tension in the other component yarn or yarns.

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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)
US680194A 1966-11-24 1967-11-02 Process for the manufacture of a composite yarn which is provided with spaced slubs Expired - Lifetime US3438194A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3033866 1966-11-24
IT1673967 1967-05-31

Publications (1)

Publication Number Publication Date
US3438194A true US3438194A (en) 1969-04-15

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Application Number Title Priority Date Filing Date
US680194A Expired - Lifetime US3438194A (en) 1966-11-24 1967-11-02 Process for the manufacture of a composite yarn which is provided with spaced slubs

Country Status (5)

Country Link
US (1) US3438194A (fr)
CH (1) CH460239A (fr)
ES (1) ES347882A1 (fr)
FR (1) FR1553885A (fr)
GB (1) GB1197988A (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537248A (en) * 1967-06-19 1970-11-03 Glanzstoff Ag Simultaneously twisting and interlacing a continuous multifilament yarn
US3914930A (en) * 1972-08-15 1975-10-28 Ici Ltd Method of manufacturing variable knop yarn
US4080777A (en) * 1976-09-13 1978-03-28 Akzona Incorporated Novelty yarns
US4184316A (en) * 1976-09-13 1980-01-22 Akzona Incorporated Production of novelty yarns
US4305245A (en) * 1979-11-13 1981-12-15 Milliken Research Corporation Method of forming false twisted slub yarn
US4345424A (en) * 1980-06-23 1982-08-24 Akzona Incorporated Textured novelty yarn and process
US4351148A (en) * 1979-11-13 1982-09-28 Milliken Research Corporation False twisted slub yarn
US4368612A (en) * 1979-11-13 1983-01-18 Milliken Research Corporation Apparatus for forming false twisted slubyarn
US4446690A (en) * 1982-10-18 1984-05-08 Milliken Research Corporation Bar balloon control
US4446691A (en) * 1982-11-10 1984-05-08 Milliken Research Corporation High A.C.-D.C. yarn tension control
US4449354A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation Disc type yarn tension control
US4449356A (en) * 1982-11-10 1984-05-22 Milliken Research Corporation Continuous A.C. tension control
US4449355A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation A.C.-D.C. Slotted type yarn tension control
US4454710A (en) * 1982-10-18 1984-06-19 Milliken Research Corporation Balloon control for yarn texturing machine
US4457129A (en) * 1982-10-18 1984-07-03 Milliken Research Corporation Slotted disc type yarn tension control
US4462557A (en) * 1982-10-18 1984-07-31 Milliken Research Corporation Spring biased electromagnetically controlled tension control
US4467594A (en) * 1981-03-05 1984-08-28 Milliken Research Corporation Spun-like textured yarn
US4478036A (en) * 1983-02-22 1984-10-23 Milliken Research Corporation Method, apparatus and intermittently textured yarn
US4532760A (en) * 1984-02-21 1985-08-06 Milliken Research Corporation D. C. Yarn tension control
DK154575B (da) * 1979-11-13 1988-11-28 Milliken Res Corp Flammegarn samt fremgangsmaade og apparat til fremstilling heraf
US5010721A (en) * 1987-07-14 1991-04-30 Eno Electronic Gmbh Arrangement for the generation of a yarn having fancy twists arranged and/or formed at random

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731789A (en) * 1956-01-24 holder
US3013379A (en) * 1960-07-05 1961-12-19 Du Pont Process for making elastic bulky composite yarn
US3113413A (en) * 1959-06-08 1963-12-10 Eastman Kodak Co Apparatus and method for producing volumized slub yarn
US3144747A (en) * 1959-05-05 1964-08-18 Celanese Corp Apparatus for producing a composite novelty slub yarn
US3253396A (en) * 1959-06-01 1966-05-31 Beaunit Corp Method and apparatus for making textured yarn and product
US3381346A (en) * 1967-06-20 1968-05-07 Owens Corning Fiberglass Corp Fluid nozzle for texturing yarns

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731789A (en) * 1956-01-24 holder
US3144747A (en) * 1959-05-05 1964-08-18 Celanese Corp Apparatus for producing a composite novelty slub yarn
US3253396A (en) * 1959-06-01 1966-05-31 Beaunit Corp Method and apparatus for making textured yarn and product
US3113413A (en) * 1959-06-08 1963-12-10 Eastman Kodak Co Apparatus and method for producing volumized slub yarn
US3013379A (en) * 1960-07-05 1961-12-19 Du Pont Process for making elastic bulky composite yarn
US3381346A (en) * 1967-06-20 1968-05-07 Owens Corning Fiberglass Corp Fluid nozzle for texturing yarns

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537248A (en) * 1967-06-19 1970-11-03 Glanzstoff Ag Simultaneously twisting and interlacing a continuous multifilament yarn
US3914930A (en) * 1972-08-15 1975-10-28 Ici Ltd Method of manufacturing variable knop yarn
US4080777A (en) * 1976-09-13 1978-03-28 Akzona Incorporated Novelty yarns
US4155216A (en) * 1976-09-13 1979-05-22 Akzona, Incorporated Production of novelty yarns
US4159619A (en) * 1976-09-13 1979-07-03 Akzona Incorporated Method for producing novelty yarns
US4184316A (en) * 1976-09-13 1980-01-22 Akzona Incorporated Production of novelty yarns
US4305245A (en) * 1979-11-13 1981-12-15 Milliken Research Corporation Method of forming false twisted slub yarn
US4351148A (en) * 1979-11-13 1982-09-28 Milliken Research Corporation False twisted slub yarn
US4368612A (en) * 1979-11-13 1983-01-18 Milliken Research Corporation Apparatus for forming false twisted slubyarn
DK154575B (da) * 1979-11-13 1988-11-28 Milliken Res Corp Flammegarn samt fremgangsmaade og apparat til fremstilling heraf
US4345424A (en) * 1980-06-23 1982-08-24 Akzona Incorporated Textured novelty yarn and process
US4467594A (en) * 1981-03-05 1984-08-28 Milliken Research Corporation Spun-like textured yarn
US4446690A (en) * 1982-10-18 1984-05-08 Milliken Research Corporation Bar balloon control
US4449355A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation A.C.-D.C. Slotted type yarn tension control
US4454710A (en) * 1982-10-18 1984-06-19 Milliken Research Corporation Balloon control for yarn texturing machine
US4457129A (en) * 1982-10-18 1984-07-03 Milliken Research Corporation Slotted disc type yarn tension control
US4462557A (en) * 1982-10-18 1984-07-31 Milliken Research Corporation Spring biased electromagnetically controlled tension control
US4449354A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation Disc type yarn tension control
US4449356A (en) * 1982-11-10 1984-05-22 Milliken Research Corporation Continuous A.C. tension control
US4446691A (en) * 1982-11-10 1984-05-08 Milliken Research Corporation High A.C.-D.C. yarn tension control
US4478036A (en) * 1983-02-22 1984-10-23 Milliken Research Corporation Method, apparatus and intermittently textured yarn
US4532760A (en) * 1984-02-21 1985-08-06 Milliken Research Corporation D. C. Yarn tension control
US5010721A (en) * 1987-07-14 1991-04-30 Eno Electronic Gmbh Arrangement for the generation of a yarn having fancy twists arranged and/or formed at random

Also Published As

Publication number Publication date
CH460239A (it) 1968-07-31
FR1553885A (fr) 1969-01-17
ES347882A1 (es) 1969-06-01
DE1685641A1 (de) 1971-04-08
GB1197988A (en) 1970-07-08

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