US3443370A - Twisted thread assemblies - Google Patents

Twisted thread assemblies Download PDF

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Publication number
US3443370A
US3443370A US659483A US3443370DA US3443370A US 3443370 A US3443370 A US 3443370A US 659483 A US659483 A US 659483A US 3443370D A US3443370D A US 3443370DA US 3443370 A US3443370 A US 3443370A
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Prior art keywords
twist
yarn
rollers
strand
strands
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Gordon W Walls
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Commonwealth Scientific and Industrial Research Organization CSIRO
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Commonwealth Scientific and Industrial Research Organization CSIRO
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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
    • D02G1/02—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
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • 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
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/286—Doubled, plied, or cabled threads with alternatively "S" and "Z" direction of twist, e.g. Self-twist process

Definitions

  • a group of strands is caused to ply-twist together to form a first thread by the steps of individually twisting one or more of the strands to impart alternating twist thereto and converging the strands.
  • the first thread and a second thread are caused to ply-twist together by applying steps similar to those of the first stage to the threads.
  • CROSS REFERENCE TO RELATED APPLICATIONS 'Ilhe present invention is a development from the invention disclosed in US. Patent No. 3,225,533 and may be performed by means of apparatus developed from the apparatus disclosed in co-pending US. patent application No. 498,433.
  • This invention relates to the formation of twisted thread assemblies and is applicable particularly, but not exclusively, to the preparation of yarn comprised of staple fibers, for example wool fibers.
  • a self-twist yarn can be produced at much faster rates than conventional plied yarns.
  • simple self-twist yarns are not entirely satisfactory in all weaving and knitting applications.
  • the present invention is a development of the invention disclosed in US. Patent No. 3,225,533 and, as will be explained in detail hereinafter, it enables the formation of a yarn particularly suitable for weaving or alternatively a yarn which can be knitted most successfully and both types of yarn can be produced at the same rate as simple self-twist yarns.
  • a process for forming a stable twisted thread assembly comprising individually twisting at least one strand of a group of strands so that each twisted strand has repeated along its length successive zones of opposite twist separated by strand twist change-over regions at which there is no twist, converging the strands of the group so that they twist around one another such as to form a stable first thread having successive zones ofopposite plying twist separated by plying twist change-over regions at which there is no plying twist, twisting said first thread to superimpose alternately opposite twist in successive zones along its length which latter zones are separated by superimposed twist change-over regions of no superimposed twist, and converging the twisted first thread with a second thread so that the two threads twist around one another to form a stable twisted assembly.
  • the second thread may be a single strand or alternatively it may be formed by individually twisting at least one strand of a further group of strands so that each twisted strand of the further group has repeated along its length successive zones of opposite twist separated by strand twist change-over regions at which there is no twist and then converging the strands of the further group so that they twist around one another such as to form said second thread as a stable assembly having alternating zones of plying twist separated by plying twist change-over regions at which there is no plying twist.
  • the second thread Before the second thread is converged with the first thread, it may be twisted such as to impart alternately opposite twist to successive zones along its length which latter zones are separated by change-over regions of no imparted twist.
  • the invention also provides a yarn comprised of a stable twisted thread assembly formed by the above-defined process.
  • the invention further extends to the provision of apparatus for producing a stable twisted thread assembly, comprising first twisting means simultaneously to impart successive zones of opposite strand twist to each strand of a group of strands, first converging means adjacent the first twisting means to converge the strands of the group to form a first thread, second twisting means to superimpose successive zones of opposite twist upon the first thread and second converging means adjacent the second twisting means to converge the first thread with a second thread.
  • FIGURE 1 is a somewhat diagrammatic perspective view of one form of apparatus constructed in accordance with the invention.
  • FIGURE 2 is a front elevation of the apparatus illustrated in FIGURE 1;
  • FIGURE 3 is a diagrammatic plan view of the apparatus
  • FIGURE 4 is a diagrammatic representation of a two-strand self-twist thread produced at an intermediate stage in the production of a yarn by means of the apparatus;
  • FIGURE 5 is a diagrammatic representation of one four-strand yarn which can be produced by the apparatus
  • FIGURE 6 is a diagrammatic plan view of part of the apparatus and shows how the path of a thread passing through it can be altered so as to change the twist distribution in the final yarn;
  • FIGURE 7 is a diagrammatic plan view of part of the apparatus showing how it can be operated to produce a three-strand yarn.
  • the illustrated apparatus comprises a conventional drafting unit 11 and two pairs of oscillating twisting rollers 12, 13 of the type illustrated in FIGURES 1 to of co-pending US. patent application No. 498,433, now Patent No. 3,377,792.
  • the roller of each pair 12, 13 are rubber covered and arranged so that they are just touching or with a small gap between them. These rollers are driven so that they reciprocate in opposite phase and rotate in opposite directions so that their adjacent surfaces move in the direction in which strands are fed forwardly by the drafting mechanism at substantially the same speed.
  • the two roller assemblies are identical, in each case the rollers being mounted on a pair of shafts 14, 15 which are rotated at constant speed in opposite directions through a gear drive 10 from an input belt drive 14.
  • rollers are keyed to the shafts by feather keys which are free to slide in along keyways so as to allow relative sliding movement between the rollers and the shafts,
  • the rollers of each pair are engaged by a pair of yokes 17, 18 in such a way that relative rotation between the roller and the yoke can occur but no relative translation is permitted.
  • yokes are connected by means of belts, pins, chains or the like 19, 20 to wheels 21, 22.
  • the wheels 21 of the two oscillating roller assemblies are connected to a common drive shaft 16 by means of a pair of cranks 23 and connecting rods 24, shaft 16, which is rotated by a belt drive 25, is split at a position between cranks 23 and the two shaft portions thus formed are releasably coupled by means of a dual-sprocket and duplex-chain coupling in order to allow the positions of the two connecting rods 24 to be adjusted relative to one another.
  • the yokes of the two oscillating roller pair assemblies are thus caused to reciprocate on their guides 26, 27 and thereby to reciprocate the rollers as they are simultaneously rotated by gear drives 10.
  • the coupling of the two roller mechanisms together by shaft 16 causes the oscillatory movements of the two roller pairs to maintain a required phase relationship to each other. This phase relationship will be explained hereinafter.
  • FIGURES 3 to 5 illustrate the manner in which the apparatus may be employed to produce a four-strand yarn which is particularly suitable for weaving.
  • Four spaced strands 31 are passed from drafting unit 11 through the first pair of twisting rollers 12. These rollers impart to each thread 31 alternating zones of opposite twist, which zones are of equal length and are separated by twist change-over regions at which there is no twist.
  • the strands are immediately converged in two pairs by means of a pair of convergence guides 32 to form two intermediate self-twist yarns 33 each consisting of two of the strands 31 plied together with their twist zones in phase.
  • FIGURE 4 The configuration of a self twist yarn produced merely by converging a pair of strands having the twist distribution of strands 31 and with their twist zones in phase is illustrated in FIGURE 4.
  • the mechanism of the self-twisting is fully described in the complete specification of US. Patent No. 3,225,533 and the yarn of FIGURE 4 is identical to the one illustrated in FIGURE 11a of that specification.
  • the symbol 2 is used to indicate regions in the strands in which there is no strand twist and the symbol A -is used to indicate regions in the yarn in which there is no plying twist, regions 2 and A being substantially coincident.
  • rollers 13 The superimposed twist distribution imparted by rollers 13 is similar to the twist distribution given to the strands 31 by the first set of twisting rollers 12 but the two sets of rollers 12, 13 are so spaced from one another and their oscillating motions so phased with respect to one another that the changeover regions of superimregions 22, A.
  • the two yarns having the superimposed further twist are immediately converged by means of a convergence guide 34 and self-twisted together to form a stable four-strand yarn 35 which is wound onto a take-up package 36.
  • the torgue distribution of each of the pair of yarns leaving twisting rollers 13 is that of a strand having the superimposed twist distribution imparted by rollers 13.
  • the superimposition of the further twist on the self-twist yarn 33 causes the actual plying twist in some parts of the yarn to be diminished and in other parts to be reinforced so that the regions A of no plying twist are displaced.
  • the zones 2 of no strand twist are not displaced appreciably by the twist imparted by rollers 13,
  • the oscillatory motion of rollers 13 is so phased with respect to that of rollers 12 that the final yarn 35 has the configuration depicted diagrammatically in FIGURE 5.
  • the individual strands of only one of the intermediate yarns 33 are indicated, the second intermediate yarn being shown in outline only.
  • the two individual strands which are illustrated bear shading lines to indicate their strand twist distributions.
  • the strand twist distributions of all four-strands are identical.
  • the regions of zero plying twist between the intermediate yarns 33 are indicated by the symbol 6 and these regions are displaced from the regions A of zero plying twist within the two yarns 33 which latter regions are also displaced from regions 2. of zero strand twist.
  • the yarn structure illustrated in FIGURE 5 is particularly applicable to warp yarns for weaving.
  • Warp yarns should have relatively high strength and abrasion resistance to withstand the tension and rubbing to which they are subjected during weaving.
  • Simple self-twist yarns have regions of no plying twist which have low abrasion resistance and also constitute zones of weakness in the yarn. The use of such yarns as warp yarns can therefore lead to yarn breakage problems during weaving.
  • a wool yarn of this structure which has adequate strength and abrasion resistance for use as a warp yarn.
  • the free length through which the converged strands 31 travel between convergence guides 32 and the second pair of twisting rollers 13 should be such as to allow an ample distance over which the converged strands can twist around one another as is more fully described in US. patent specification 3,225,533.
  • the free length should be at least the length of a strand twist zone.
  • the distance between the convergence guide 34 and take-up package 36 should preferably be at least the length of one zone of twist imparted by rollers 13.
  • the distance between the two pairs of twisting rollers should preferably be at least one twist cycle length.
  • the distance X is preferably in the range 12 to 40 cm., an optimum value being between 25 to 40 cm., and the stroke of each pair of twisting rollers should be in the range 2 to 7 inches.
  • a satisfactory knitting yarn can be produced by reducing the intensity of twist imparted by the second pair of twisting rollers thereby to reduce the intensity of self-twisting between the two intermediate yarns and altering the path length of one of the intermediate yarns as shown in FIGURE 6 so that when the two are converged the regions of no strand twist 2 and the regions of no plying twist A of one yarn are not coincident with the regions 2 and A of the other yarn.
  • the length of the path followed by one of the intermediate yarns (identified as 33A), as it passes from its convergence guide 32 to the second pair of twisting rollers can be increased simply by providing two further guides 37, 38.
  • the increased path length is such that when the yarn 33A is self-twisted with the other yarn 33B after leaving the second pair of twisting rollers, its regions 2, A are displaced by approximately one half of a cycle length from the regions 2, A in yarn 33B.
  • the stroke of the second pair of twisting rollers is reduced so that it is less than that of the first pair of twisting rollers. It has been found that satisfactory wool knitting yarn can be produced if the stroke'of the first pair of rollers is 2 inches and the stroke of the second pair of twisting rollers is about 1 inch.
  • FIGURE 7 A further modification aimed at reducing the tex. (i.e. weight per unit length) of the resultant yarn is illustrated in FIGURE 7.
  • the yarns produced by the arrangements shown in FIGURES 3 and 6 each have four-strands.
  • the finest wool strand which can conveniently be spun without breaking problems depends on the fineness of the wool fibres.
  • For wool having an average fibre diameter of about 24 microns the finest practicable strand is about 15 tex. so that a four-strand yarn made from such wool must be at least 60 tex. Finer yarns are required for weaving some types of fabric.
  • a finer, yet weaveable, three-strand yarn can be produced by means of the arrangement shown in FIGURE 7 and employing a continuous filament structure (either multi-filarnent or mono-filament) as at least one of the strands.
  • a continuous filament structure either multi-filarnent or mono-filament
  • only two strands 41 are passed through the first set of twisting rollers 12 and then converged to form a self-twist intermediate yarn 43.
  • a third strand 44 in the form of'a synthetic mono-filament is fed through a guide 45 directly to the second set of twisting rollers 13.
  • the second set of twisting rollers impacts alternating twist to mono-filament 44 and the intermediate two-strand yarn 43, and mono-filament 44 and yarn 43 are then converged by a convergence guide 46 'whereupon they self-twist together to form a resultant three-strand twisted yarn 47.
  • Strand 44 may be any synthetic monofil, for example nylon, polyamide, polypropyl ene, alginate or other rayon, an acrylic or polyester monofil.
  • Each of strands 41, 42 may be wool or a synthetic monofil.
  • strand 41 might be a 9 denier nylon monofil, strand 42 a 15 tex. wool strand, and strand 44 a 9 denier nylon monofil. This will give a resultant yarn 47 of 17 tex. which is readily weavable.
  • this yarn will be 88% -wool and it will have many of the physical properties of a pure wool yarn.
  • mono-filaments are not, of course, limited to the arrangement of FIGURE 7.
  • a three-strand structure could be achieved by passing strand 44 directly to convergence guide 46 without twisting it and allowing yarn 43 to twist around it.
  • mono-filament may be used as any of the strands 31.
  • the twist levels and strength of the yarns according to the invention can be altered by treatment with various kinds of additives.
  • various kinds of additives For example, if the strandsused in the preparation of a wool yarn are treated with colloidal silica, their inter-fibre friction is increased and it has been found that this will alter the twist levels in the resultant yarn and will greatly increase its strength. It has been found that wool yarns produced in accordance with this invention are particularly susceptible to such treatment. The effect of such a treatment is illustrated by Example 2 below.
  • EXAMPLE 1 Material.-Noble combing wool of 23 microns average fibre diameter.
  • roller units were phased relative to one another so that in the final yarn the resultant yarn twist due to the second set of rollers had change-over points exactly midway between twist change-over points in the individual strands. produced by the first set of rollers.
  • the yarn count was 55 tex. and the tenacity was 5.5 gm./tex. with a coeflicient of variation of strength of 9.8%.
  • the means extension to break was 13%
  • the number of turns of piled twist in each half cycle of pliel twist in each intermediate yarn was 42 and the number of turns of plied twist in each half cycle of plied "twist in the final yarn was 27.
  • This yarn was suitable for use as a wrap yarn in weavmg.
  • the yarn was prepared in the same manner as in Example 1 but with 1% colloidal silica added to the wool.
  • the yarn count was 55 tex. and the tenacity was 8.0 gm./tex. with a coefiicient of variation of strength of 9.6%
  • the number of turns of plied twist in each half cycle of plied twist in each intermediate yarn was 39 and the number of turns of plied twist in each half cycle of plied twist in the final yarn was 29.
  • This yarn was suitable for use as a wrap yarn in weaving.
  • the twisting was accomplished with the arrangement shown in FIGURE 7, two all wool strands being twisted by the first pair of twisting rollers and then converged to form an intermediate yarn. This intermediate yarn and the 1 tex. nylon filament were twisted by the second set of twisting rollers and converged to form the resultant three-strand yarn.
  • the two roller units each had a stroke of 3 inches and a twist cycle length of 22 cms. and were phased relative to each other so that in the final yarn the resultant yarn twist due to the second set of rollers had changeover points exactly midway between the twist change-over points in the individual strands due to the first set of rollers.
  • the number of turns of plied twist in each half cycle of plied twist in the intermediate yarn was 39 and the number of turns of plied twist in each half cycle of twist in the final yarn due to the second pair of rollers was 29.
  • This yarn was suitable for use as a wrap yarn in weaving.
  • EXAMPLE 4 Material.Noble combing wool of 23 microns average fibre diameter. 1 tex. nylon filament.
  • roller units each had a 3 inch stroke and 22 cms. cycle length and were phased relative to each other so that in the final yarn the resultant yarn twist due to the second set of rollers had change-over points exactly midway between the twist change-over points in the individual strands due to the first set of rollers.
  • the yarn count was 55 tex. and its tenacity was 6.0 gm./tex. with a coeflicient of variation of strength of 13%.
  • the mean extension to break was 12% and the yarn was 96% wool and 3 /2 nylon.
  • This yarn was suitable for use as a warp yarn in weavmg.
  • EXAMPLE 5 Material.-Noble combing wool of 23 microns average fibre diameter. 2 tex. multi-filament (7 fil.) nylon yarn.
  • roller units each had a 3-inch stroke and 22 cms. cycle length and were phased relative to each other so that in the final yarn the resultant yarn twist due to the second set of rollers had change-over points exactly midway between the twist change-over points in the individual strands due to the first set of rollers.
  • the yarn count was 55 tex. and the tenacity was 5.6 gm./tex. with a coefiicient of variation of strength of 15%.
  • the mean extension to break was 15% and the yarn was 96 /2% wool and 3 /2% nylon.
  • This yarn was suitable for use as a warp yarn in weavmg.
  • the twisting was carried out with the arrangement of FIGURE 7.
  • One 51 tex. wool strand was self-twisted with one 2 tex.
  • multi-filament (7 fil.) nylon yarn by the first set of twisting rollers to form the intermediate yarn and this intermediate yarn was then selftwisted at the second stage with a second 2 tex.
  • multi-filament (7 fil.) nylon yarn was then selftwisted at the second stage with a second 2 tex.
  • roller units each had a 3-inch stroke and 22 cms. cycle length and were phased relative to each other so that in the final yarn the resultant yarn twist due to the second set of rollers had change-over points exactly midway between the twist change-over points in the individual strands due to the first set of rollers.
  • the yarn count was 55 tex. and the tenacity was 6.5 gm./tex. with a coefiicient of variation of strength of 7.0%.
  • the mean extension to break was 16% and the yarn was 92 /2% wool and 7 /2% nylon.
  • This yarn was suitable for use as a warp yarn in weavmg.
  • EXAMPLE 7 Material.Noble combing wool of 23 microns average fibre diameter. 1 tex. nylon strand.
  • roller units each had a 3-inch stroke and 22 cms. cycle length and were phased relative to each other so that in the final yarn the resultant yarn twist due to the second set of rollers had change-over points exactly midway between the twist change-over points in the individual strands due to the first set of rollers.
  • the yarn count was 30 tex. and the tenacity was 5.0 gm./tex. with a coefiicient of variation of strength of 18%.
  • the mean extension to break was 13% and the yarn was 96 /2% wool and 3'/2% nylon.
  • This 30 tex. yarn of 96 /2t% wool was suitable for use as a warp yarn in weaving.
  • EXAMPLE 8 Material.Noble combing wool of 23 microns average fibre diameter. 1 tex. nylon filament.
  • the twisting was accomplished with the arrangement of FIGURE 7.
  • One 28 tex. wool strand was self-twisted with one 1 tex. nylon filament at the first stage to produce an intermediate yarn and the intermediate yarn was self-twisted with one 1 tex. nylon filament at the second stage.
  • roller units each had a 3-inch stroke and 22 cms. cycle length and were phased relative to each other so that in the final yarn the resultant yarn twist due to the second set of rollers had change-over points exactly midway between the twist change-over points in the individual strand due to the first set of rollers.
  • the yarn count was 30 tex. and the tenacity was 6.3 gm./tex. with a coefiicient of variation of strength of 12%.
  • the mean extension to break was 14% and the yarn was 93% wool and 7% nylon.
  • This 30 tex. yarn of 93% wool was suitable for use as a warp yarn in weaving.
  • EXAMPLE 9 Material.--Noble combing wool of 26 microns average fibre diameter.
  • the twisting was achieved with the arrangement shown in FIGURE 3.
  • Four wool strands were passed through the first pair of twisting rollers and converged to form two intermediate yarns which were then passed through the second set of rollers and then self-twisted to- 9 gether to form a resultant all wool yarn having the structure of FIGURE 5.
  • roller units each had a 3-inch stroke, and 22 cms cycle length and were phased relative to each other so that in the final yarn the resultant yarn twist due to the second set of rollers had change-over points exactly midway between the twist change-over points in the individual strands due to the first set of rollers.
  • the number of turns of plied twist in each half cycle of plied twist in the intermediate yarns was 38 and the number of turns of plied twist per half cycle of plied twist in the final yarn due to the second set of twisting rollers was 20.
  • the mean extension to break was 20% This 90 Tex wool yarn was suitable for weaving but not for knitting because of loop distortion.
  • Method-Twisting was accomplished with the arrangement of FIGURE 6.
  • the stroke of the first pair of twisting rollers was 2", and the stroke of the second pair of twisting rollers was 1 inch.
  • the path length of one intermediate yarn between the two pairs of rollers was lengthened so that the twist change-over points of one intermediate yarn fell exactly midway between the twist change-over points of the other intermediate yarn. Phasing between the two pairs of rollers was adjusted so that in the final yarn the resultant yarn twist due to the second set of rollers each of its changeover points exactly midway between a twist change-over point in one intermediate yarn and a twist change-over point in the other intermediate yarn.
  • the mean extension to break was 9%
  • the number of turns of plied twist per half cycle of plied twist in the intermediate yarns due to the first pair of twist rollers was 28 and the number of turns of plied twist per half cycle of plied twist in the final yarn due to the second pair of twist rollers was 8.
  • twist levels can be varied by altering parameters other than the strokes of the twisting rollers.
  • the twist levels could, for example,
  • a process for forming a stable twisted thread assembly comprising the steps of individually twisting at least one strand of a group of strands so that each twisted strand has repeated along its length successive zones of opposite twist separated by strand twist changeover regions at which there is no twist, converging the strands of the group so that they twist around one another such as to form a stable first thread having successive zones of opposite plying twist separated by plying twist change-over regions at which there is no plying twist, twisting said first thread to superimpose alternately opposite twist in successive zones along its length which latter zones are separated by superimposed twist changeover regions of no superimposed twist, and converging the twisted first thread with a second thread so that the two threads twist around one another to form a stable twisted assembly.
  • said second thread is formed by individually twisting at least one of the strands of the further group of strands so that each twisted strand of said further group has repeated along its length successive zones of opposite twist separated by strand twist change-over regions at which there is no twist and converging the strands of the further group so that they twist around one another such as to form said second thread as a stable assembly having successive zones of opposite plying twist separated by plying twist change-over regions at which there is no plying twist.
  • Apparatus for producing a stable twisted thread assembly comprising first twisting means to impart alternating zones of opposite strand twist to each strand of a group of strands, first converging means adjacent the first twisting means to converge the first group of strands to form a first thread, second twisting means to superimpose alternating zones of opposite twist upon the first thread and second converging means adjacent the second twisting means to converge the first thread with a second thread.
  • Apparatus for producing a stable twisted thread assembly comprising a first pair of oppositely rotated transversely reciprocating twisting rollers simultaneously to impart alternating zones of opposite strand twist to each strand of a first and second group of strands, first converging means adjacent the first pair of twisting rollers to converge the first group of strands to form a first thread and also to converge the second group of strands to form a second thread, a second pair of oppositely rotated transversely reciprocating rollers simultaneously to superimpose alternating zones of opposite twist individually upon the first and second threads, and
  • second converging means adjacent said second pair of twisting rollers to converge the first and second threads.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US659483A 1966-08-09 1967-08-09 Twisted thread assemblies Expired - Lifetime US3443370A (en)

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AU9432/66A AU405827B2 (en) 1966-08-09 Twisted thread assemblies

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BE (1) BE702478A (no)
BR (1) BR6791945D0 (no)
CH (1) CH477576A (no)
CS (1) CS160087B2 (no)
DE (1) DE1685645C3 (no)
ES (1) ES343974A1 (no)
FR (1) FR1548390A (no)
GB (1) GB1144614A (no)
IL (1) IL28453A (no)
NL (1) NL141937B (no)
NO (1) NO122906B (no)
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SU (1) SU368357A1 (no)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537251A (en) * 1967-06-06 1970-11-03 Nippon Rayon Kk Production of mechanically bundled yarns
US3659408A (en) * 1970-03-13 1972-05-02 Anaconda Wire & Cable Co Stranding apparatus
US3695019A (en) * 1969-06-17 1972-10-03 James Lappage Method and apparatus for forming yarn
US3717988A (en) * 1970-02-09 1973-02-27 Commw Scient Ind Res Org Formation of twisted thread assemblies
US3724190A (en) * 1970-09-12 1973-04-03 J Balbatun Method of production of multisectional filament coils and control system of a coiling machine operating according to this method
US3999361A (en) * 1974-04-19 1976-12-28 Commonwealth Scientific And Industrial Research Organization Method of and apparatus for forming a multi-ply yarn
US4033102A (en) * 1975-03-21 1977-07-05 Centre Technique Industriel Dit: Institut Textile De France Method and apparatus for twisting core strands
US4055040A (en) * 1976-04-13 1977-10-25 E. I. Du Pont De Nemours And Company Alternately twisted yarn assembly and method for making
US4084400A (en) * 1976-08-17 1978-04-18 Pavel Mikhailovich Movshovich Method of making self-twisted fibrous product from at least two strands
US4114549A (en) * 1977-06-07 1978-09-19 Champion International Corporation Pile fabric
US4120143A (en) * 1977-10-25 1978-10-17 Champion International Corporation Fluid self-twist spinning apparatus
US4121408A (en) * 1976-09-09 1978-10-24 Senichi Maeda Doubled-yarn of elastic and non-elastic yarns and method and apparatus for producing same
US4206589A (en) * 1977-11-09 1980-06-10 Platt Saco Lowell Limited Formation of a self twist fibrous structure
US4246750A (en) * 1979-07-24 1981-01-27 Wwg Industries, Inc. Self-twist yarn and method of making same
US4276740A (en) * 1977-10-25 1981-07-07 Wwg Industries, Inc. Self-twisted yarn and method and apparatus for producing it
US4712365A (en) * 1984-07-27 1987-12-15 Ferrer Fernando F Process for the manufacture of reinforced false twist yarns
US4761946A (en) * 1986-03-04 1988-08-09 Fritz Stahlecker Arrangement for the prestrengthening of thread components to be twisted together
US5557915A (en) * 1994-11-14 1996-09-24 E. I. Du Pont De Nemours And Company Method and apparatus for making alternate twist plied yarn and product
US20060144033A1 (en) * 2002-11-14 2006-07-06 Lee David A Apparatus for producing a yarn
US20100175360A1 (en) * 2006-12-22 2010-07-15 Summit Wool Spinners Limited Apparatus and method for producing a yarn
CN102433632A (zh) * 2011-10-20 2012-05-02 浙江新澳纺织股份有限公司 新型毛纱加工方法
WO2012059560A1 (en) 2010-11-03 2012-05-10 Gilbos Nv Process and apparatus for making alternate s/z twist plied braid or joined alternate s/z twist plied yarns
CN105671701A (zh) * 2016-03-13 2016-06-15 福建华源科创发展有限公司 一种简化牵伸部件配置的细纱机
WO2016142754A1 (en) * 2015-03-09 2016-09-15 Nuova Cosmatex S.R.L. Rubbing system for making roves
WO2017081536A1 (en) 2015-11-10 2017-05-18 Gilbos N.V. Improved jet and method
WO2017081544A1 (en) 2015-11-10 2017-05-18 Gilbos N.V. Tension compensator
US11898277B2 (en) 2019-01-30 2024-02-13 Tmc Limited Yarn, method and apparatus for producing yarn and products formed therefrom

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SU562594A1 (ru) * 1975-07-22 1977-06-25 Всесоюзный Научно-Исследовательский Институт Легкого И Текстильного Машиностроения Способ получени самокрученой пр жи
DE10025858C1 (de) * 2000-05-25 2002-09-26 Hamel Ag Arbon Verfahren und Vorrichtung zum Spinnen
DE10032708C1 (de) * 2000-07-07 2002-01-31 Hamel Ag Arbon Verfahren und Vorrichtung zur Herstellung eines Selbstzwirngarns
NZ522596A (en) * 2002-11-14 2005-11-25 David Arthur Lee Apparatus for producing a yarn
CN103924350B (zh) * 2014-04-14 2016-08-17 上海八达纺织印染服装有限公司 一种捻合纱加工方法及其加工装置
CN103938320B (zh) * 2014-04-14 2016-08-17 上海八达纺织印染服装有限公司 一种涤棉自捻纱线的加工方法
DE102014113346A1 (de) * 2014-09-16 2016-03-17 Maschinenfabrik Rieter Ag Vorrichtung und Verfahren zum Spinnstricken
CN108754689B (zh) * 2018-06-01 2021-04-27 香港纺织及成衣研发中心有限公司 一种用于环锭细纱机的纱线加工装置和方法

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US3043084A (en) * 1961-09-14 1962-07-10 Eastman Kodak Co False twisting apparatus for tow
US3225533A (en) * 1961-10-19 1965-12-28 Commw Scient Ind Res Org Apparatus and process for forming yarns and other twisted assemblies
US3228181A (en) * 1963-03-22 1966-01-11 British Nylon Spinners Ltd Production of yarns with varying twist

Cited By (33)

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US3537251A (en) * 1967-06-06 1970-11-03 Nippon Rayon Kk Production of mechanically bundled yarns
US3695019A (en) * 1969-06-17 1972-10-03 James Lappage Method and apparatus for forming yarn
US3717988A (en) * 1970-02-09 1973-02-27 Commw Scient Ind Res Org Formation of twisted thread assemblies
US3659408A (en) * 1970-03-13 1972-05-02 Anaconda Wire & Cable Co Stranding apparatus
US3724190A (en) * 1970-09-12 1973-04-03 J Balbatun Method of production of multisectional filament coils and control system of a coiling machine operating according to this method
US3999361A (en) * 1974-04-19 1976-12-28 Commonwealth Scientific And Industrial Research Organization Method of and apparatus for forming a multi-ply yarn
US4033102A (en) * 1975-03-21 1977-07-05 Centre Technique Industriel Dit: Institut Textile De France Method and apparatus for twisting core strands
US4055040A (en) * 1976-04-13 1977-10-25 E. I. Du Pont De Nemours And Company Alternately twisted yarn assembly and method for making
US4084400A (en) * 1976-08-17 1978-04-18 Pavel Mikhailovich Movshovich Method of making self-twisted fibrous product from at least two strands
US4121408A (en) * 1976-09-09 1978-10-24 Senichi Maeda Doubled-yarn of elastic and non-elastic yarns and method and apparatus for producing same
US4114549A (en) * 1977-06-07 1978-09-19 Champion International Corporation Pile fabric
US4120143A (en) * 1977-10-25 1978-10-17 Champion International Corporation Fluid self-twist spinning apparatus
US4276740A (en) * 1977-10-25 1981-07-07 Wwg Industries, Inc. Self-twisted yarn and method and apparatus for producing it
US4206589A (en) * 1977-11-09 1980-06-10 Platt Saco Lowell Limited Formation of a self twist fibrous structure
US4246750A (en) * 1979-07-24 1981-01-27 Wwg Industries, Inc. Self-twist yarn and method of making same
US4712365A (en) * 1984-07-27 1987-12-15 Ferrer Fernando F Process for the manufacture of reinforced false twist yarns
US4761946A (en) * 1986-03-04 1988-08-09 Fritz Stahlecker Arrangement for the prestrengthening of thread components to be twisted together
US5644909A (en) * 1994-11-14 1997-07-08 E.I. Du Pont De Nemours And Company Method and apparatus for making alternate twist plied yarn and product
US5557915A (en) * 1994-11-14 1996-09-24 E. I. Du Pont De Nemours And Company Method and apparatus for making alternate twist plied yarn and product
US20060144033A1 (en) * 2002-11-14 2006-07-06 Lee David A Apparatus for producing a yarn
US7752832B2 (en) * 2002-11-14 2010-07-13 Summit Wool Spinners Limited Apparatus for producing a yarn
US8429889B2 (en) * 2006-12-22 2013-04-30 David Arthur Lee Apparatus and method for producing a yarn
US20100175360A1 (en) * 2006-12-22 2010-07-15 Summit Wool Spinners Limited Apparatus and method for producing a yarn
US20130205741A1 (en) * 2010-11-03 2013-08-15 Gilbos N.V. Process and apparatus for making alternate s/z twist plied braid or joined alternate s/z twist plied yarns
WO2012059560A1 (en) 2010-11-03 2012-05-10 Gilbos Nv Process and apparatus for making alternate s/z twist plied braid or joined alternate s/z twist plied yarns
CN102433632A (zh) * 2011-10-20 2012-05-02 浙江新澳纺织股份有限公司 新型毛纱加工方法
WO2016142754A1 (en) * 2015-03-09 2016-09-15 Nuova Cosmatex S.R.L. Rubbing system for making roves
WO2017081536A1 (en) 2015-11-10 2017-05-18 Gilbos N.V. Improved jet and method
WO2017081544A1 (en) 2015-11-10 2017-05-18 Gilbos N.V. Tension compensator
US10895024B2 (en) 2015-11-10 2021-01-19 Gilbos N.V. Tension compensator
US11053612B2 (en) 2015-11-10 2021-07-06 Gilbos N.V. Jet and method
CN105671701A (zh) * 2016-03-13 2016-06-15 福建华源科创发展有限公司 一种简化牵伸部件配置的细纱机
US11898277B2 (en) 2019-01-30 2024-02-13 Tmc Limited Yarn, method and apparatus for producing yarn and products formed therefrom

Also Published As

Publication number Publication date
SE317612B (no) 1969-11-17
FR1548390A (no) 1968-12-06
IL28453A (en) 1971-07-28
GB1144614A (en) 1969-03-05
DE1685645C3 (de) 1975-07-10
NO122906B (no) 1971-08-30
NL141937B (nl) 1974-04-16
CH477576A (de) 1969-08-31
SU368357A1 (ru) 1973-01-26
DE1685645A1 (de) 1971-07-29
DE1685645B2 (de) 1974-11-14
BR6791945D0 (pt) 1973-01-02
ES343974A1 (es) 1968-12-16
BE702478A (no) 1968-01-15
NL6710910A (no) 1968-02-12
CS160087B2 (no) 1975-02-28

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