US3722204A - Apparatus for producing highly stretchable twist cotton yarn - Google Patents

Apparatus for producing highly stretchable twist cotton yarn Download PDF

Info

Publication number
US3722204A
US3722204A US00087944A US3722204DA US3722204A US 3722204 A US3722204 A US 3722204A US 00087944 A US00087944 A US 00087944A US 3722204D A US3722204D A US 3722204DA US 3722204 A US3722204 A US 3722204A
Authority
US
United States
Prior art keywords
yarn
plied
twist
highly stretchable
cotton 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
Application number
US00087944A
Inventor
E Tsirkel
L Stepanova
A Nessler
I Vishnyak
A Schiptsova
N Tsareva
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3722204A publication Critical patent/US3722204A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • D02G1/0286—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 characterised by the use of certain filaments, fibres or yarns
    • D02G1/0293—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 characterised by the use of certain filaments, fibres or yarns composed, at least in part, of natural fibres

Definitions

  • the present invention relates to processes for producing cotton yarn, and more specifically to a method of manufacturing highly stretchable twisted cotton yarn.
  • the present invention is most successfully used to make yarns employed in the production of woven or knitted stretch wear, gloves, and hosiery.
  • the basic object of the invention is to develop a method of producing highly stretchable twisted cotton yarn and a device to realize it, with the introduction of such preparatory operations of yarn treatment prior to its impregnation, that would permit obtaining a soft and stronger yarn in a continuous process, at the same time using equipment of a simple design and ofiering high productivity.
  • the plied yarn prior to impregnation the plied yarn is treated in an alkaline solution bath; the plied yarn is passed at constant rates of its entry into,
  • Alkaline pretreatment prior to impregnation is realized with a sodium bicarbonate solution.
  • Such preparatory yarn treatment prior to its impregnation provides for decreasing its undesirable stiffness and obviates strength loss owing to formation of longer intermolecular links.
  • the amount of back twist is expediently made to be in the range from 5 to percent of that of the plied yarn.
  • the device employed to realize the proposed method comprises immovable rods located at the bottom of the baths for treating the yarn with an alkaline solution, its neutralization by acidation, washing, impregnation, and squeezing, these rods being passed about by the yarn, and providing for intensification of the process.
  • An arrangement for heat curing the yarn includes a heat-crimping tube, at whose exit there is installed an attachment for straightening the thread before its untwisting.
  • the immovable rods substantially promote intensification of the yarn treatment processes, as the solution captured by the yarn and getting between it and the rod is pressed into the yarn, which would not take place in case of prior art apparatus having yarn passage about revolving rollers.
  • the heat-crimping tube ensures a long time of curing (up to 45 minutes) within a continuous process. The attachment to straighten out the yarn is vital, because the crirnped yarn emerging from the tube does not lend itself to direct untwisting (because of possible snarls, knots, etc.).
  • the sequence of a proposed method is as follows: ply yarn unwound from a package is subjected to twisting. Then this plied yarn is in a sequence treated in baths with an alkaline solution such as of sodium bicar- 1 bonate, a dilute solution of acid, and water, whereupon the yarn is impregnated with a thermosettingresin, squeezed, dried, and heat cured. After its heat curing the yarn is straightened, untwisted, and given some twist in the direction oppositeto that of the plied yarn twist, with simultaneous winding of the finished highly stretchable yarn.
  • an alkaline solution such as of sodium bicar- 1 bonate, a dilute solution of acid, and water
  • the highly stretchable twist yarn is produced in the following way.
  • Yam 4 made in two ormore-plies is unwound by a pair of rollers 3 from a bobbin 2 placed on a delivery spindle 1 which twists the yarn.
  • the twist yarn 5 is drawn by a pair of rollers 6 through a bath 7 with an alkaline solution of NaOH grams/liter), whereupon the yarn passes about a fixed rod 8.
  • the rates of rotation of rollers 3 and 6 are equal, and the time of yarn passage through the bath depends on-the yarn thickness.
  • a pair of rollers 9 pulls the yarn througha bath 10 filled with a sodium bicarbonate solution, the :yarn againpassing about a fixed rod 8.
  • a pair of rollers 11 pulls the yarn through a bath 12 with a dilute acid solution, and a pair of rollers 13 pulls it through a water bath 14 to wash the yarn in water.
  • a pair of rollers 15 takes the yarn through a bath heater plates 19, where it is dried, and after passing through a funnel 20 disks 21 stuff the yarn into an arrangement 22 for its heat curing.
  • the arrangement includes a tapered heat-crimping tube 23 whose volume ensures a heat curing time of up to 45 minutes, while its taper provides for free movement of the crimped yarn along the tube.
  • yarn is pulled by a pair of delivery rollers 24, prior to which it passes through an attachment 25 for its straightening.
  • This attachment consists of a felt layer 26 having a slit 27 through which the yarn is pulled.
  • spindle 28 As the yarn is untwisted, it is at the same time given a twist in the direction opposite to that of the plied yarn, the amount of the back twist being from to percent of that of the plied yarn twist. If the yarn is given less than said 5 percent of back twist, said helical coils which are undesirable may remain in the finished yarn, and in case it is given more than 10 percent, the yarn. acquires a greater stiffness and a smaller bulk.
  • the yarn produced by the above-described method features softness, high elasticity and stretchability which is stable against multiple washings, high water and moisture absorption which is near to that in ordinary cotton yarn, and high resistance to microorganisms and rotting.
  • the finished yarn of the present invention has an undoubted advantage over them from certain hygienic and other considerations.
  • an' apparatus for producing highly stretchable twisted cotton yarn comprising: means to ply single cotton yarn in a plurality of folds and twist the yarn so plied in a direction of the single yarn twist; means to pass plied yarn in a series of successive liquid baths, each bath being provided in a container having a fixed rod about which the plied yarn is arranged to pass, a first of said liquid baths containing an alkaline solution, a second of said baths containing an acidic solution for neutralization, a third of said baths containing water for washing and cleansing the neutralized plied yarn, a fourth of said baths containing an impregnating compound to impregnate the plied neutralized and washed yarn; a means to dry the impregnated yarn and further means to heat-cure the impregnating compound, said further means being in the form of a heat-crimping tube through which the yarn is threaded, and an attachment for straightening the yarn and means to untwist the yarn in

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

A method to produce highly stretchable twisted cotton yarn, wherein a single yarn is plied in two or more folds, and twisted in the direction of the single yarn twist, then the resulting plied yarn is treated in a bath with an alkaline solution, neutralized by acid, and water-washed, whereupon the yarn is impregnated with thermosetting resins, squeezed, dried, heat cured, and then straightened out and untwisted, thereby giving it a twist in the direction opposite to that of the plied yarn, thereby to produce a highly stretchable twisted cotton yarn.

Description

United States Patent [191 Isirkel et al.
[111 3,722,204 [451 Mar. 27, 1973 APPARATUS FOR PRODUCING HIGHLY STRETCHABLE TWIST CO'ITON YARN [76] lnventors: Elena Ernestovna Tsirkel, ulitsa Bela Kuna, l9; Ljudmila Nikolaevna Stepanova, ulitsa Schevchenko, l7; Antonina Vasilievna Schiptsova, ulitsa Bestuszhevskaya ll; Nina Alexandrovna Tsareva, ulitsa Basseinaya, 63; Andrei Maximilianovich Nessler, ulitsa Bela Kuna, 19, all of Leningrad; Idal Aizikovich Vishnyak, ulitsa Universitetskaya, 371, kv. 39, Tashkent, all of U.S.S.R.
[22] Filed: Nov. 9, 1970 [21] Appl. No.: 87,944
[52] U.S. Cl. ..57/164 [51] Int. Cl. ..D02g 3/40, DOlh 13/30 [58] Field of Search ....57/34 R, 34 HS, 35, 156, 162,
[56] References Cited UNITED STATES PATENTS 2,254,741 9/1941 7 Hansen et al .L ..57/164 X 2,449,215 9/1948 Goldthwait et a1. ..57/164 3,127,732 4/1964 Brown et al. ..57/164 3,285,690 11/1966 Cooper et a] ..57/164 X 3,299,486 l/l967 Meyers et a]. ..57/164 X 3,381,465 5/l968 Kingsbery et al ..57/164 3,403,504 10/1968 Himalainen et al. ..57/164 3,508,421 4/1970 Dimond et a] ..57/35 X Primary ExaminerDonald E. Watkins Attorney-Holman & Stern ABSTRACT A method to produce highly stretchable twisted cotton yarn, wherein a single yarn is plied in two or more folds, and twisted in the direction of the single yarn twist, then the resulting plied yarn is treated in a bath with an alkaline solution, neutralized by acid, and water-washed, whereupon the yarn is impregnated with thermosetting resins, squeezed, dried, heat cured, and then straightened out and untwisted, thereby giving it a twist in the direction opposite 'to that of the plied yam, thereby to produce a highly stretchable twisted cotton yarn.
1 Claim, 1 Drawing Fi gure APPARATUS FOR PRODUCING HIGHLY STRETCHABLE TWIST COTTON YARN BACKGROUND OF THE INVENTION The present invention relates to processes for producing cotton yarn, and more specifically to a method of manufacturing highly stretchable twisted cotton yarn.
The present invention is most successfully used to make yarns employed in the production of woven or knitted stretch wear, gloves, and hosiery.
I DESCRIPTION OF PRIOR ART Known at present is a method of manufacturing highly elastic twisted cotton yarn, including the following operations: plying a single yarn in two or more plies, twisting the plied yarn in twister frames, making the plied twisted yarn into skeins or bobbins, impregnating the yarn with crosslinking therrnosetting resins, further heat curing of these resins, and finally, untwisting of the yarn in twister frames in the direction opposite to the twist of the plied yarn, with simultaneous winding of the highly stretchable yarn onto twist tubes or spools (see, for example, US. Pat. No. 3,127,732, Cl.57-l64) In this method each operation of yarn processing is done separately, passing from one type of equipment to another.
Since in this conventional method the plied and twisted yarn is impregnated without any previous preparation prior to impregnation, many short inter- 7 molecular links are formed therein, resulting in excessive stiffness of the yarn and a significant drop in its strength. Besides, owing to some nonumifonnity in the yarn diameter and twist unevenness inherent in it, the yarn obtained by the conventional method has sections with helical coils, i.e., twist-retaining sections, and this drawback substantially worsens the yarn quality. Also, the prior art multistage process of making the yarn reduces labor efficiency, and does not allow organizing a continuous process. i Y
The basic object of the invention is to develop a method of producing highly stretchable twisted cotton yarn and a device to realize it, with the introduction of such preparatory operations of yarn treatment prior to its impregnation, that would permit obtaining a soft and stronger yarn in a continuous process, at the same time using equipment of a simple design and ofiering high productivity.
With this object in view, in the present method of producing highly stretchable twisted cotton yarn, con sisting in plying a single yarn in two or more plies, and twisting it in the direction of twist of the single yarn, whereupon the thus obtained plied yarn is pretreated according to the invention and subsequently impregnated with thermosetting resins, squeezed, dried, heat cured, and finally untwisted with simultaneous spooling of the finished highly stretchable yarn. Ac-
cording to the invention, prior to impregnation the plied yarn is treated in an alkaline solution bath; the plied yarn is passed at constant rates of its entry into,
' and exit from, the bath, and then neutralized, acidated,
and water-washed, and the yarn is heat curedand is straightened out; subsequently after its untwisting it is given a-twist opposite to that of the plied yam. Alkaline pretreatment prior to impregnation, according to the invention is realized with a sodium bicarbonate solution. Such preparatory yarn treatment prior to its impregnation provides for decreasing its undesirable stiffness and obviates strength loss owing to formation of longer intermolecular links.
The amount of back twist is expediently made to be in the range from 5 to percent of that of the plied yarn.
This obviates the formation of helical coils (twistretaining sections) in the finished yarn.
The device employed to realize the proposed method comprises immovable rods located at the bottom of the baths for treating the yarn with an alkaline solution, its neutralization by acidation, washing, impregnation, and squeezing, these rods being passed about by the yarn, and providing for intensification of the process. An arrangement for heat curing the yarn includes a heat-crimping tube, at whose exit there is installed an attachment for straightening the thread before its untwisting.
The immovable rods substantially promote intensification of the yarn treatment processes, as the solution captured by the yarn and getting between it and the rod is pressed into the yarn, which would not take place in case of prior art apparatus having yarn passage about revolving rollers. The heat-crimping tube ensures a long time of curing (up to 45 minutes) within a continuous process. The attachment to straighten out the yarn is vital, because the crirnped yarn emerging from the tube does not lend itself to direct untwisting (because of possible snarls, knots, etc.).
DESCRIPTION OF PREFERRED EMBODIMENTS For a betterunderstanding of the invention, considered below is a particular exemplary embodiment thereof with references to the appended drawing, which shows a schematic diagram of the device for realizing the method according to the invention.
The sequence of a proposed method is as follows: ply yarn unwound from a package is subjected to twisting. Then this plied yarn is in a sequence treated in baths with an alkaline solution such as of sodium bicar- 1 bonate, a dilute solution of acid, and water, whereupon the yarn is impregnated with a thermosettingresin, squeezed, dried, and heat cured. After its heat curing the yarn is straightened, untwisted, and given some twist in the direction oppositeto that of the plied yarn twist, with simultaneous winding of the finished highly stretchable yarn.
The highly stretchable twist yarn is produced in the following way. Yam 4 made in two ormore-plies is unwound by a pair of rollers 3 from a bobbin 2 placed on a delivery spindle 1 which twists the yarn. The twist yarn 5 is drawn by a pair of rollers 6 through a bath 7 with an alkaline solution of NaOH grams/liter), whereupon the yarn passes about a fixed rod 8. The rates of rotation of rollers 3 and 6 are equal, and the time of yarn passage through the bath depends on-the yarn thickness. Then a pair of rollers 9 pulls the yarn througha bath 10 filled with a sodium bicarbonate solution, the :yarn againpassing about a fixed rod 8. Next, a pair of rollers 11 pulls the yarn through a bath 12 with a dilute acid solution, and a pair of rollers 13 pulls it through a water bath 14 to wash the yarn in water. A pair of rollers 15 takes the yarn through a bath heater plates 19, where it is dried, and after passing through a funnel 20 disks 21 stuff the yarn into an arrangement 22 for its heat curing. The arrangement includes a tapered heat-crimping tube 23 whose volume ensures a heat curing time of up to 45 minutes, while its taper provides for free movement of the crimped yarn along the tube. i I
' From tube 23 yarn is pulled by a pair of delivery rollers 24, prior to which it passes through an attachment 25 for its straightening. This attachment consists of a felt layer 26 having a slit 27 through which the yarn is pulled.
Other designs of the straightening attachment are also possible, as for example, systems of rollers or combs.
The straightened yarn with long intermolecular links formed therein, which issues from rollers 24, is subject to untwisting and backtwisting by spindle 28 with simultaneous winding of the finished highly stretchable yarn 29 to a tube 30 placed on this spindle. As the yarn is untwisted, it is at the same time given a twist in the direction opposite to that of the plied yarn, the amount of the back twist being from to percent of that of the plied yarn twist. If the yarn is given less than said 5 percent of back twist, said helical coils which are undesirable may remain in the finished yarn, and in case it is given more than 10 percent, the yarn. acquires a greater stiffness and a smaller bulk.
Thus, the yarn produced by the above-described method features softness, high elasticity and stretchability which is stable against multiple washings, high water and moisture absorption which is near to that in ordinary cotton yarn, and high resistance to microorganisms and rotting.
" Being close'in its elasticity to stretchable yarns made of synthetic fibers, the finished yarn of the present invention has an undoubted advantage over them from certain hygienic and other considerations.
What we claim is:
,1..An' apparatus for producing highly stretchable twisted cotton yarn comprising: means to ply single cotton yarn in a plurality of folds and twist the yarn so plied in a direction of the single yarn twist; means to pass plied yarn in a series of successive liquid baths, each bath being provided in a container having a fixed rod about which the plied yarn is arranged to pass, a first of said liquid baths containing an alkaline solution, a second of said baths containing an acidic solution for neutralization, a third of said baths containing water for washing and cleansing the neutralized plied yarn, a fourth of said baths containing an impregnating compound to impregnate the plied neutralized and washed yarn; a means to dry the impregnated yarn and further means to heat-cure the impregnating compound, said further means being in the form of a heat-crimping tube through which the yarn is threaded, and an attachment for straightening the yarn and means to untwist the yarn in the direction opposite to said direction of the single yarn twist by a predetermined degree-so as to produce a highly stretchable twisted cotton yarn.
US00087944A 1970-10-29 1970-11-09 Apparatus for producing highly stretchable twist cotton yarn Expired - Lifetime US3722204A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19702053247 DE2053247A1 (en) 1970-10-29 1970-10-29 Process for the production of highly elastic twisted cotton yarn
FR7040099A FR2112748A5 (en) 1970-10-29 1970-11-06 High-stretch doubled cotton yarn - produced by alkali and resin treatment combined with twisting in continuous process
US8794470A 1970-11-09 1970-11-09
GB5338470 1970-11-10

Publications (1)

Publication Number Publication Date
US3722204A true US3722204A (en) 1973-03-27

Family

ID=36951520

Family Applications (1)

Application Number Title Priority Date Filing Date
US00087944A Expired - Lifetime US3722204A (en) 1970-10-29 1970-11-09 Apparatus for producing highly stretchable twist cotton yarn

Country Status (4)

Country Link
US (1) US3722204A (en)
DE (1) DE2053247A1 (en)
FR (1) FR2112748A5 (en)
GB (1) GB1315567A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901014A (en) * 1972-07-19 1975-08-26 Kanebo Ltd Method for crimping cellulosic fibers and crimped cellulosic fibers obtained thereby
CN109137155A (en) * 2018-10-09 2019-01-04 永安市日发纺织有限公司 A kind of doubling is twisted thread dyeing and finishing all-in-one machine
CN109137175A (en) * 2018-10-09 2019-01-04 永安市日发纺织有限公司 A kind of twisting machine
CN110004538A (en) * 2019-04-03 2019-07-12 合肥岸鲁意科技有限公司 A kind of high-efficiency method for producing of Pure Cotton Combed Yarn
CN113737342A (en) * 2021-10-15 2021-12-03 灵犀(河北)供应链有限责任公司 Preparation process of elastic plied yarn and preparation process of fabric and bandage

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254741A (en) * 1940-03-13 1941-09-02 Us Rubber Co Method of making heat resisting yarn and cord, and the cord
US2449215A (en) * 1945-07-10 1948-09-14 Us Agriculture Method of producing cotton cordage
US3127732A (en) * 1961-09-18 1964-04-07 John J Brown Method for producing bulked, highly stretchable textured cotton yarns
US3285690A (en) * 1962-12-14 1966-11-15 Jr Albert S Cooper Method of improving the dimensional stability and elastic recovery of allcotton stretchable fabrics and products thereof
US3299486A (en) * 1963-07-03 1967-01-24 Clarence L Meyers & Co Inc Method of making stretch cotton knitted fabrics
US3381465A (en) * 1967-06-14 1968-05-07 Agriculture Usa Method of producing bulked, highly stretchable, textured cotton yarns from blends oftreated and untreated cotton fibers, using a deferred curing process
US3403504A (en) * 1966-07-13 1968-10-01 Agriculture Usa Stretchable textiles produced from the back-twisting of highly swollen cellulosic yarns
US3508421A (en) * 1965-01-26 1970-04-28 Empire Pierce Dyeing & Finishi Apparatus for dyeing textile strands

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254741A (en) * 1940-03-13 1941-09-02 Us Rubber Co Method of making heat resisting yarn and cord, and the cord
US2449215A (en) * 1945-07-10 1948-09-14 Us Agriculture Method of producing cotton cordage
US3127732A (en) * 1961-09-18 1964-04-07 John J Brown Method for producing bulked, highly stretchable textured cotton yarns
US3285690A (en) * 1962-12-14 1966-11-15 Jr Albert S Cooper Method of improving the dimensional stability and elastic recovery of allcotton stretchable fabrics and products thereof
US3299486A (en) * 1963-07-03 1967-01-24 Clarence L Meyers & Co Inc Method of making stretch cotton knitted fabrics
US3508421A (en) * 1965-01-26 1970-04-28 Empire Pierce Dyeing & Finishi Apparatus for dyeing textile strands
US3403504A (en) * 1966-07-13 1968-10-01 Agriculture Usa Stretchable textiles produced from the back-twisting of highly swollen cellulosic yarns
US3381465A (en) * 1967-06-14 1968-05-07 Agriculture Usa Method of producing bulked, highly stretchable, textured cotton yarns from blends oftreated and untreated cotton fibers, using a deferred curing process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901014A (en) * 1972-07-19 1975-08-26 Kanebo Ltd Method for crimping cellulosic fibers and crimped cellulosic fibers obtained thereby
CN109137155A (en) * 2018-10-09 2019-01-04 永安市日发纺织有限公司 A kind of doubling is twisted thread dyeing and finishing all-in-one machine
CN109137175A (en) * 2018-10-09 2019-01-04 永安市日发纺织有限公司 A kind of twisting machine
CN109137175B (en) * 2018-10-09 2024-02-06 永安市日发纺织有限公司 Twisting machine
CN109137155B (en) * 2018-10-09 2024-03-26 永安市日发纺织有限公司 Doubling, twisting, dyeing and finishing all-in-one machine
CN110004538A (en) * 2019-04-03 2019-07-12 合肥岸鲁意科技有限公司 A kind of high-efficiency method for producing of Pure Cotton Combed Yarn
CN113737342A (en) * 2021-10-15 2021-12-03 灵犀(河北)供应链有限责任公司 Preparation process of elastic plied yarn and preparation process of fabric and bandage

Also Published As

Publication number Publication date
DE2053247A1 (en) 1972-05-04
FR2112748A5 (en) 1972-06-23
GB1315567A (en) 1973-05-02

Similar Documents

Publication Publication Date Title
US3478506A (en) Method of manufacturing a yarn
US2964900A (en) Novelty combination yarns
US3540204A (en) Method for manufacturing an improved elastic yarn covered with multifilament
US2244832A (en) Production of textile threads
DE1785707C3 (en) Process for the production of yarn from staple fibers free of sizing
US2174878A (en) Yarn and method of producing same
US2517946A (en) Method of producing yarn
US3722204A (en) Apparatus for producing highly stretchable twist cotton yarn
US2946181A (en) Production of twistless yarns by direct spinning to tow, sizing the tow, false twisting and winding
US3303640A (en) Method of producing composite elastic yarn
US2019185A (en) Artificial fiber and process of producing same
US2125633A (en) Method of making tire cord
US3257793A (en) Making core yarn
CN110644101B (en) Spinning method of worsted parallel fancy yarn
US2946180A (en) Production of twistless staple fiber yarns by sizing untwisted bundles, false twisting and winding
US3393505A (en) Composite elastic yarn
CN106222830B (en) It is a kind of without rule melange yarn and its production technology
US3399521A (en) Process and apparatus for the texturing of yarns and the like
CN103572624A (en) Ultra-thin fiber cleaning rope and manufacturing method thereof
GB1379468A (en) Method of manufacturing fancy yarns
DE1811718B2 (en) METHOD FOR MANUFACTURING COLORED ROLLER FIBERS
US2254712A (en) Composite rubber-textile thread, yarn, fabric, and method of production
US2356887A (en) Process for the manufacture of strongly curled, woollike twisted yarns of endless threads
GB815202A (en) Improvements relating to the production of crimped yarn of continuous filaments of synthetic linear polymers
SU899744A1 (en) Method of production yarn in spinning and twisting machine