US3454998A - Yarn treating apparatus and method - Google Patents
Yarn treating apparatus and method Download PDFInfo
- Publication number
- US3454998A US3454998A US532642A US3454998DA US3454998A US 3454998 A US3454998 A US 3454998A US 532642 A US532642 A US 532642A US 3454998D A US3454998D A US 3454998DA US 3454998 A US3454998 A US 3454998A
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- United States
- Prior art keywords
- yarn
- roller
- heated
- crimping
- rollers
- 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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- 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
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
- D02G1/125—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including means for monitoring or controlling yarn processing
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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
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
- D02G1/127—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including drawing or stretching on the same machine
Definitions
- Apparatus for producing crimped yarn from undrawn or partially drawn thermoplastic yarn by false twisting or longitudinal compression in a stufling box includes a rotating roller on the surface of which the yarn travels and heating means, conveniently integral with the roller, for heating the yarn in contact with the roller, the yarn then being crimped while still hot from the roller.
- the roller may be one of two or more rollers arranged to draw the yarn while hot immediately before crimping the yarn.
- This invention relates generally to improvements in a method and apparatus for drawing and crimping thermoplastic yarn, such as, for instance, yarn made of polypropylene, polyester and the nylons, and in particular to an improved method and apparatus for drawing, crimping and treating yarn.
- the yarn is first extruded and formed onto a supply package.
- This package of yarn is then drawn to establish the desired denier of the yarn, by passing the yarn over a heater between a pair of drawing rollers onto a take-up package.
- To crimp this drawn yarn it is then further processed by feeding it over a heating element from whence it is crimped in crimping apparatus, such as that described in U.S. Patent No. 3,212,157. (Such crimping apparatus in combination with the heating and drawing technique and apparatus to be described, results in high-speed operations for even the very heavy denier yarns.)
- thermoplastic yarn is heated, to accurately control the temperature of the heated yarn both internally and externally.
- known crimping apparatus the interior of the thermoplastic yarn is often not heated uniformly at the proper temperature just prior to crimping. Resultingly, non-uniform crimping occurs.
- an object of the present invention to provide improved yarn processing apparatus which is simpler, less expensive, and more reliable and by means of which an improved quality of yarn may be obtained.
- extruded but otherwise unprocessed yarn is passed over the surface of two driven rollers one or both of which being internally heated, by electrical means for example.
- the rollers are caused to rotate at different rates to draw the yarn and establish the desired denier of the yarn.
- the drawn yarn is then fed into the crimping chamber of a high-speed crimping apparatus from whence it is formed onto a take-up package.
- One immediate advantage here is that separate positive drive means for passing yarn frictionally over stationary heated surfaces is eliminated as is yam-heater surface frictional engagement.
- the rates of rotation of the two rollers may be set to produce a desired denier of the yarn, or the rate may be continually or intermittently varied during the drawing process to obtain variable deniers along the yarn if so desired.
- the number of turns of yarn around the heated roller or rollers can be calculated and varied for different yarn applications.
- the yarn is guided directly from the extruder onto the heated drawing rollers and then to the crimping apparatus in one continuous operation.
- the yarn after first being extruded and then drawn in a conventional manner may be then passed over a single heated roll which heats the yarn in an improved, uniform manner prior to the yarn entering the crimping chamber.
- One aspect of the invention also lends itself to utilization in false twisting apparatus, in which the improved means of drawing and heating the twisted yarn is provided and in which the heated rollers preheat and postheat the yarn while simultaneously feeding the yarn through the false twisting apparatus. This method also eliminates the need for separate positive feed rollers in the heating areas of such apparatus.
- the apparatus of the invention provides for imparting a slight twist to the yarn just prior to the drawing operation from whence it is crimped, the slight twist being retained in the taken-up crimped yarn for facilitating tufting.
- Yet another aspect of the invention contemplates the drawing and crimping of various untreated yarns and in this respect, means for coating the yarn with oil and the like are provided in the apparatus of the invention.
- rollers and other yarn contacting surfaces of the apparatus including the crimping chamber are coated with Teflon so that snagging of the yarn being processed at high speeds is reduced; sticking of decomposed polymers is substantially eliminated; and the fumes from and direct contact with oils on the yarn will not coat the yarn contacting surfaces to adversely affect a next package of yarn to be processed.
- heated rollers in the drawing of yarn also lends itself to drawing combined yarns of different polymers and/or yarns with different heat histories, orientations, molecular weights, crystallizations, etc., to produce multi-filament yarn composed of yarns having various levels of crimp.
- FIG. 1 is a schematic diagram showing a conventional method for drawing and crimping yarn as known in the prior art
- FIG. 2 is a schematic diagram showing of a method and apparatus for drawing and crimping yarn according to the invention
- FIG. 3 is a schematic diagram of another embodiment of the inventive improvement to a yarn drawing and crimping apparatus
- FIG. 7 is a side elevation of the apparatus of FIG. 5 when viewing in the direction of the arrows 77;
- FIG. 8 is a schematic diagram showing the use of the invention in false twist apparatus.
- thermoplastic yarn 10 is first extruded from an extruder 11 and after setting during its vertical travel is passed around guide rollers 12 and 13 from which the yarn is taken up on a supply package 14.
- the yarn 10 from the supply package 14 is subsequently subjected to a drawing process in which the yarn is stressed under heat to cause a re-orientation of the molecular structure of the thermoplastic yarn in order to increase the tenacity of the yarn.
- the extent of the drawing process which may be varied, causes the final length of the yarn to be several times that of the original length and may be varied according to the desired characteristics and denier of the drawn yarn.
- the yarn 10 is drawn between two driven cold rollers 15 and 16 around which the yarn is made to travel through a few turns.
- the rate of rotation of roller 16 is caused to be greater than that of roller 15. This difference in rotational speed of the two drawing rollers 15, 16, effectuates the drawing process.
- the yarn is softenied by drawing the yarn over a heating plate 17 between the drawing rollers 15 and 16. From the rollers, the yarn is taken up on package 18. The yarn on package 18 is then ready to be crimped. For this purpose, the yarn from package 18 is passed over a positive drive roller 19, over the heating surfaces of an elongated heating element 20 where the yarn is once again heated prior to being guided to a crimping apparatus 21 where the yarn is crimped. The crimped yarn is then formed onto a takeup package 22. Intermediate the crimping chamber 21 and takeup package 22, an oiler 23 may be provided, to
- FIG. 2 is shown one embodiment of the present invention.
- Undrawn yarn 10 from a supply package 14 is drawn between two rollers 25 and 26, either the front one 25 of which must be, or both of which may be heated and around both of which the yarn travels through several turns. Again, the rollers are rotated at different rates of rotation in order to draw the yarn 10 to the desired denier.
- the heated roller because of constant yarn-heater contact, is a greater uniformity of heating throughout the entire length of the thermoplastic yarn, and this with a reduction in expense, and complexity of equipment.
- a very high drawing speed such as up to 500 meters per minute off the second roller 26 may be obtained.
- the yarn may be passed directly from the extruder 11 to the drawing rollers 25-26 as shown in FIG. 3, thus eliminating the step of taking up extruded yarn onto a take-up package 14 as shown in FIG. 1.
- the heated, drawn yarn is passed to a crimping chamber 21, where it is crimped and is then formed onto a take-up package 22.
- the yarn is coated with oil and/or other compositions to finish or, for instance, predispose the yarn for later processes, such as dyeing or tufting.
- the present invention in eliminating such preprocessing steps, may provide, for instance, after the crimped yarn leaves the crimping chamber 21, on the way to the takeup package 22, an oiler 23 in which a coating of oil is applied to the yarn 10, to make it more amenable to a subsequent dyeing process. Due to the more uniform heating of the yarn by the heated rollers, the oil is more uniformly distributed over the surface of the yarn and consequently the dyeing process is also more uniform.
- FIG. 4 shows another application of the inventive concept in which the yarn 10 is first drawn, such as by the prior art means, shown in the embodiments of FIG. 1, the drawn yarn being formed onto package 18.
- the yarn 10 is taken from package 18 and passed around a single driven heated roller 42 which provides a uniform heating of the yarn, without drawing, before the yarn is led to the crimping chamber 21. After the crimping operation, the yarn is guided through oiler 23 and then is formed onto take-up package 22 as in the previously described embodiments.
- FIGS. 5, 6 and 7 illustrate yarn processing apparatus made in accordance with and performing the methods of the invention.
- the yarn 50 is unwound from a supply roll 51 through guide disc 52 around rotatably mounted guide and tensioner wheels 53, the disc and wheels being mounted'on shelf 46 extending from housing 45, onto driven rollers 55 and 57 and their associated separating rollers 56 and 58.
- the yarn 50 is first passed over the first driven roller 55, which is heated, and separating roller 56 through the desired number of turns, the separating roller 56, extending at an angle relative to the plane of the axis of roller 55 (see FIG. 6), assisting in distributing the yarn in a spiral path across the face of the roller 55.
- the yarn is then passed from roller 55 to the second driven roller 57, which may or may not be heated, as desired, and separating roller 58, through the desired number of turns, again, separating roller 58 serving to assist in distributing the yarn in a spiral path across the face of the roller 57.
- the draw rollers 55 and 57 grip the yarn and are so driven, by conventional driving means (not shown) contained within the housing 45, that the roller 57 is caused to have a greater rotational speed than that of roller 55. As a result of the differential in the rates of rotation of the two rollers, the yarn is stretched or drawn.
- Standard heated godet rolls 12 inches in circumference with 2 to 5 inch wide faces, rated at 500 to 1000 watts at 120 to 240 volts for temperatures to 225 C. have been used as heated rollers 55 and 57 with exceptionally good results. Surface temperature in such rolls is maintained and varied by intgeral heaters and thermistors. Rheostat controls such as rotating controllers put out by Barber-Colman Company, specifically made for use as a surface heat controller for standard godet rollers, will act to further assure close and constant temperature control.
- thermoplastic yarns for carpeting It has been found advisable to work with temperatures within the 85 C. to 185 C. for the first roller 55 for processing the various currently used thermoplastic yarns for carpeting.
- the actual temperature to which the roller surface is raised is determined by the type of yarn being treated, upon the desired degree of crimping, and other considerations which arise in the subsequent processing of the yarn.
- the roller surface temperature will also depend upon the polymer of the thermoplastic yarn.
- the rotational rate of roller 57 will vary around approximately 500 meters per minute, while the peripheral speed of roller 55 will be approximately two and one-half to five times slower than that of roller 57.
- roller 57 it is not essential that the surface of roller 57 be heated, but in some applications, to increase the over-all heating of the yarn, it is conceivable that roller 57 will be heated.
- heating means to separator roll 56 and/or 58 if required by any particular operating or processing considerations.
- the yarn After the yarn is drawn, it is then passed in a heated condition from roller 57 around guide rolls 59 through the nip of driven rollers 60, 61, which are rotated at the same peripheral speed as the second roller 57.
- the rollers 60, 61 pass the heated and drawn yarn into the crimping area or chamber 62 of a stuffer box crimper 63, the details of construction of which are fully set forth in US. Patent No. 3,212,157.
- the yarn is bunched and crimped in the stutter box area 63 and in such condition is engaged by the toothed periphery (FIG. 5) of wheel 64 which is rotated, clockwise in FIG. 5, in timed relation with the nip rollers 60, 61, the peripheral speed of wheel 64 being less than the peripheral speed of the rollers 60-, 61 at a ratio of between one to one hundred and twenty and one to four hundred and twenty and one to four hundred and sixty according to the nature of the yarn and the form required, where the hole (not shown) into the crimping area is about of an inch.
- the toothed periphery of the wheel gathers up the bunched yarn moving it along the groove (not shown) in the arcuate element 65 which encloses the bunched yarn and may be heated if required to bring the yarn to a final required state.
- the yarn After leaving the wheel 64, the yarn passes under tensioning device 66 through guide 67 to winding apparatus 68 which is driven at a constant speed with respect to the rate at which bunching of the yarn takes place.
- the crimped yarn is formed onto take-up bobbin 71, which is driven by a roller 72 which contacts the periphery of the bobbin 71.
- the yarn is laid on the bobbin, in a well-known manner, by reciprocating guide means 73 adjacent thenip of the 'bob'bin and the drive roller. In this manner a package of crimped yarn is uniformly formed over the entire surface of take-up bobbin 71.
- an arm 74 from which bobbin holder 76 extends, is pivoted via shaft (FIG. 7), which is pivotally mounted on a housing 77.
- the crimping apparatus just described is capable of accepting yarn at the high rate of speed from rollers 55 and 57, such apparatus in combination with rollers 55 and 57 results in the provision of a continuous operation including, if desired, extruding, as well as drawing, heating and crimping with all intermediate yarn take-up and supply steps eliminated.
- the drive means for the various parts described may be conventional, including a source of supply S connecting a motor means M, heaters H in the rollers 55 and 57 as well as heater H in the arcuate element 65 and H for heating the teeth of wheel 64, if desired, through apppropriaate circuitry E.
- the motor means M drives drive means D D D and D, for operating gear boxes or other transmission means 6,, G G and G properly set or variable for rotating the winding mechanism 68, toothed wheel 64, nip rollers 60, 61 and rollers 55 and 57 at desired speeds.
- Color variations in the dyeing process can also be achieved by heating the tips of the toothed wheel, by suitable heating means such as a contact heater externally of the arcuate element 65 or by direct heat, via electric heating elements, for instance, to selected teeth within the arcuate element.
- suitable heating means such as a contact heater externally of the arcuate element 65 or by direct heat, via electric heating elements, for instance, to selected teeth within the arcuate element.
- twist is imparted to the yarn in a simple manner, by continually rotating the supply package 51 while the yarn is being passed from the supply package 51 to the drawing and heating rolls 55 and 57.
- the supply package 51 is rotated about a vertical axis in FIG. by providing a rotatable support 49 for the package 51 on base 49 and by imparting rotational movement by any conventional means including drive means D from motor means M.
- the yarn retains the twist through the subsequent processing to the bobbin package 71.
- the apparatus of the invention lends itself to combining yarns of various characteristics, such as yarns of different polymer and/or yarns of different heat histories, differing molecular weights, differing orientations and yarns of different crystallizations. Any one of these combinations of yarn may be processed by the apparatus shown in FIGS. 57 by providing a second, third, etc. supply package and paassing the yarn therefrom simultaneously over the rollers 56, 58 through the crimper 65 and onto the windup or take-up apparatus 68.
- the guides 53, 59 and 67, as well as the rollers and crimper may readily, accept the yarns either physically combined or, be modified to accept the yarns in parallel relation.
- FIG. 8 Yet another embodiment of this invention is shown in FIG. 8 in which a heated roller is used in a false twist apparatus.
- the yarn is passed from a supply package onto a positive feed roller and then onto a heating plate on which the yarn is softened. After leaving the heating plate, the yarn is passed through a false twist head from which it is then passed to another positive feed roller and then to a take-up package.
- rollers 81 and 82 are replaced by rollers 81 and 82, one or both of which may be heated by electrical heating means disposed within each roller.
- rollers thereby serve to heat the yarn and also operate as a positive feed means, so that the yarn 80 is passed from supply package 83 onto the first heated roller 81, and is then passed through a false twist head 85.
- the yarn is softened by being passed several turns over heated roller 81 to achieve a uniform heating so as to better prepare the yarn for the twisting operation.
- the yarn 80 is passed over driven roller 82, which may or may not be heated by internal heating means, onto a take-up package 84.
- thermoplastic yarn including the steps of taking yarn from a supply, guiding the yarn directly to and winding the yarn around an internally heated roller, rotating the roller in the direction of the winding of the yarn therearound, heating the yarn by means of the roller as it travels in contact with the roller and directly crimping the thus heated yarn.
- Apparatus for treating thermoplastic yarn comprising means for drawing the yarn, means for crimping the drawn yarn by longitudinal compression and means for Winding the crimped yarn, said drawing means comprising a driven roller said driven roller including a peripheral surface around which the yarn is wound and with which the yarn travels, means for heating the yarn as it travels with said peripheral surface, and means for advancing the heated yarn from said roller at a faster rate than the rate at which the yarn is advanced by said roller, said crimping means including a chamber defining a yarn bunching zone for forming a plug of crimped yarn, and means for driving the drawn yarn into the said chamber while the yarn is still in a heated condition from said drawing means, said winding means winding the drawn and crimped yarn from the head of the plug thereof formed by the said chamber.
- Apparatus for treating thermoplastic yarn comprising means for heating and drawing the yarn while advancing the yarn, means for crimping the yarn by longitudinal compression directly after drawing while the yarn is still in a heated condition from the heating and drawing means, and means for winding up the drawn and crimped yarn
- said heating and drawing means comprising a pair of rollers, each of said rollers having a peripheral surface around which the yarn is wound, one of said rollers being heatable and rotatable to heat and advance yarn from the supply to the other of said rollers, said other roller being rotatable to advance the yarn at a rate greater than the rate at which the yarn is advanced by the said one roller to thereby draw the yarn while in a heated condition from the said one roller
- said crimping means comprising a chamber defining a yarn bunching zone for forming a plug of crimped yarn and means for driving the drawn yarn into the chamber while the yarn is still in a heated condition from the heating and drawing means, the winding up means being arranged to wind the crimped and drawn yarn
- Apparatus for treating thermoplastic yarn comprising a first feed roller around which the yarn is wound for heating and linearly advancing the yarn, a second feed roller for advancing and drawing the yarn as it leaves the first feed roller, and means for imparting a false twist to yarn interposed between said first and second rollers, said first roller being internally heated and constituting the sole means for heating the yarn prior to the false twisting means.
- Apparatus for treating thermoplastic yarn comprising a driven roller for linearly advancing yarn from a supply, said roller including a peripheral surface around which the yarn is wound and with which the yarn travels, means for heating the yarn as it travels with said peripheral surface, means for crimping the yarn by longitudinal compression while still in a heated condition from said peripheral surface and for forming a plug of the crimped yarn, said crimping means including a chamber defining a yarn bunching area and means for driving the heated yarn from said peripheral surface into the chamber, said apparatus including means for winding the crimped yarn from the head of said plug and means for driving in timed relation said roller and said driving means.
- Apparatus for treating thermoplastic yarn comprising means for drawing the yarn, means for crimping the drawn yarn by longitudinal compression and means for winding the crimped yarn, said drawing means comprising a roller arrangement and means for heating the yarn and means for advancing the heated yarn away from said roller arrangement, said heating means being arranged to heat the yarn as it travels around said roller arrangement and said means for advancing the yarn being adapted to advance the heated yarn away from said roller arrangement at a faster rate than the rate at which the yarn travels around said roller arrangement, said crimping means including a chamber defining a yarn bunching zone for forming a plug of crimped yarn and means for driving the drawn yarn into said chamber while the yarn is still in a heated condition from said drawing means, said winding means being arranged to wind the drawn and crimped yarn from the head of the plug thereof formed by the said chamber.
- Apparatus for treating thermoplastic yarn comprising means for drawing the yarn, means for crimping the drawn yarn by longitudinal compression and means for winding the crimped yarn, said drawing means comprising a roller arrangement and means for heating the yarn and means for advancing the heated yarn away from said roller arrangement, said roller arrangement including a driven roller having a peripheral surface in contact with which the yarn travels, said heating means being arranged to heat the yarn as it travels with said peripheral surface and said means for advancing the heated yarn being adapted to advance the heated yarn away from said roller arrangement at a faster rate than the rate at which the yarn travels with said peripheral surface, said crimping means including a chamber defining a yarn bunching zone for forming a plug of crimped yarn and means for driving the drawn yarn into said chamber while the yarn is still in a heated condition from said drawing means, said winding means being arranged to wind the drawn and crimped yarn from the head of the plug thereof formed by the said chamber.
- roller arrangement includes a driven roller and a spacing roller for spacing axially along the driven roller turns of yarn wound around both said driven roller and the spacing roller.
- the apparatus of claim 8 including means for extruding yarn, said roller arrangement being adapted to take up and advance the yarn at the rate at which the yarn is extruded.
- said means for advancing the heated yarn away from said roller arrangement comprises a second roller arrangement, said second roller arrangement including a second driven roller having a peripheral surface in contact with which the yarn travels.
- said second roller arrangement includes a second spacing roller for spacing turns of yarn wound around both said second driven roller and said second spacing roller.
- said coating means comprises means for intermittently coating the yarn.
- the apparatus of claim 8 including means for continuously advancing the plug of yarn away from said chamber.
- said means for advancing said plug is a wheel having a toothed periphery for engaging the plug and at least some of the teeth of said wheel are heated.
- thermoplastic yarn including the steps of taking yarn from a supply, guiding the yarn directly to and winding the yarn around an internally heated roller, rotating the roller in the direction of the winding of the yarn therearound, heating the yarn by means of the roller as it travels in contact with the roller, drawing the yarn off the roller at a greater speed than the peripheral speed of the roller, and directly crimping the drawn yarn while said yarn is still in a heated condition from said heating step.
- thermoplastic yarn including taking yarn from a supply internally, heating a roller, guiding the yarn around the heated roller to heat the yarn, rotating the roller to advance the heated yarn, passing the heated yarn around a second roller, rotating the second roller at a peripheral speed greater than that of the heated roller to draw the yarn, and imparting a false twist to the yarn intermediate the said rollers while the yarn is still in a heated condition from the heated roller.
- a method of treating a thermoplastic yarn including the steps of taking the yarn from a supply, guiding the yarn directly to and winding the yarn around a roller, driving the roller in the direction of the winding of the yarn therearound to advance the yarn, heating the yarn as it travels in contact with the roller and directly crimping the thus heated yarn.
- thermoplastic yarn accordng to claim 30 comprises bunchmg the yarn in the form of a plug and further comprising winding the yarn from the head of the plug.
- thermoplastic yarn comprismg the steps of taking the yarn from a supply, advancing the yarn around a roller arrangement, heating the yarn as it travels around said roller arrangement, advancing the heated yarn away from the roller arrangement at a faster rate than the rate at which the yarn travels around said roller arrangement and thereby drawing the heated yarn, driving the drawn yarn intoa stutter box crimping chamber while said drawn yarn is still in a heated condition and thereby crimping the yarn and forming a plug of crimped yarn, and removing the crimped yarn from the head of the plug.
- Apparatus for treating a thermoplastic yarn comprising a roller adapted for winding of a thermoplastic yarn therearound and for rotation in the direction of winding of the yarn, means for heating the yarn while it is wound around the roller, means for crimping the yarn and means for feeding the yarn from the roller to the crimping means, the crimping means being so positioned relative to the roller that the yarn is still in a heated condition at the crimping means.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US53264266A | 1966-03-08 | 1966-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3454998A true US3454998A (en) | 1969-07-15 |
Family
ID=24122591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US532642A Expired - Lifetime US3454998A (en) | 1966-03-08 | 1966-03-08 | Yarn treating apparatus and method |
Country Status (4)
Country | Link |
---|---|
US (1) | US3454998A (de) |
AT (1) | AT304751B (de) |
DE (1) | DE1660430A1 (de) |
GB (3) | GB1183765A (de) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3724037A (en) * | 1971-05-10 | 1973-04-03 | Tmm Research Ltd | Processes and apparatus for crimping synthetic filamentary materials |
US3781952A (en) * | 1962-08-13 | 1974-01-01 | R Stanley | Textile treatment method and apparatus |
US3808654A (en) * | 1969-07-31 | 1974-05-07 | R Stanley | Textile treatment method |
US3924311A (en) * | 1969-04-11 | 1975-12-09 | Robert K Stanley | Strand drawing and crimping treatment |
US3946468A (en) * | 1966-03-08 | 1976-03-30 | K. M. G. Machinery Limited | Method of producing textured yarn |
US3978559A (en) * | 1974-03-29 | 1976-09-07 | Techniservice Corporation | Yarn treating apparatus |
US4004330A (en) * | 1972-01-03 | 1977-01-25 | Techniservice Division Textured Yarn Co., Inc. | Textile treatment apparatus |
US4669158A (en) * | 1983-10-27 | 1987-06-02 | Val Lesina S.P.A. | Method for preparing warp wound on beams, starting from a series of continuous, partially-drafted thermoplastic yarns |
US5299345A (en) * | 1989-12-18 | 1994-04-05 | Rieter Machine Works, Ltd. | Method and apparatus for producing untwisted yarn from at least two fibril bundles |
US5343601A (en) * | 1991-10-26 | 1994-09-06 | Barmag Ag | Yarn spinning method with high-speed winding |
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US2686339A (en) * | 1950-10-04 | 1954-08-17 | Chemstrand Corp | Treatiment of acrylonitrile polymer fibers |
US2758358A (en) * | 1953-08-06 | 1956-08-14 | Alexander Smith Inc | Filament crimping apparatus |
GB777625A (en) * | 1955-01-28 | 1957-06-26 | Ici Ltd | Process for the manufacture of improved yarns |
US3069745A (en) * | 1958-03-12 | 1962-12-25 | Barmag Barmer Maschf | Stretch-spooling machines |
US3099064A (en) * | 1961-04-13 | 1963-07-30 | Eastman Kodak Co | Method and apparatus for making rug yarn |
US3125846A (en) * | 1958-10-24 | 1964-03-24 | noordenbos | |
US3145947A (en) * | 1962-08-13 | 1964-08-25 | Techniservice Corp | Unwinding strand from a traversewound package or the like |
US3177556A (en) * | 1962-06-26 | 1965-04-13 | British Nylon Spinners Ltd | Drawing and crimping of synthetic filaments and yarns |
US3212157A (en) * | 1961-11-29 | 1965-10-19 | Klinger Mfg Co Ltd | Yarn crimping apparatus |
US3311961A (en) * | 1963-09-26 | 1967-04-04 | British Nylon Spinners Ltd | Process for treating filamentary material |
-
1966
- 1966-03-08 US US532642A patent/US3454998A/en not_active Expired - Lifetime
-
1967
- 1967-03-01 DE DE19671660430 patent/DE1660430A1/de active Pending
- 1967-03-02 AT AT200967A patent/AT304751B/de not_active IP Right Cessation
- 1967-03-07 GB GB00783/67A patent/GB1183765A/en not_active Expired
- 1967-03-07 GB GB00782/67A patent/GB1183764A/en not_active Expired
- 1967-03-07 GB GB00784/67A patent/GB1183766A/en not_active Expired
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US2686339A (en) * | 1950-10-04 | 1954-08-17 | Chemstrand Corp | Treatiment of acrylonitrile polymer fibers |
US2758358A (en) * | 1953-08-06 | 1956-08-14 | Alexander Smith Inc | Filament crimping apparatus |
GB777625A (en) * | 1955-01-28 | 1957-06-26 | Ici Ltd | Process for the manufacture of improved yarns |
US3069745A (en) * | 1958-03-12 | 1962-12-25 | Barmag Barmer Maschf | Stretch-spooling machines |
US3125846A (en) * | 1958-10-24 | 1964-03-24 | noordenbos | |
US3099064A (en) * | 1961-04-13 | 1963-07-30 | Eastman Kodak Co | Method and apparatus for making rug yarn |
US3212157A (en) * | 1961-11-29 | 1965-10-19 | Klinger Mfg Co Ltd | Yarn crimping apparatus |
US3177556A (en) * | 1962-06-26 | 1965-04-13 | British Nylon Spinners Ltd | Drawing and crimping of synthetic filaments and yarns |
US3145947A (en) * | 1962-08-13 | 1964-08-25 | Techniservice Corp | Unwinding strand from a traversewound package or the like |
US3311961A (en) * | 1963-09-26 | 1967-04-04 | British Nylon Spinners Ltd | Process for treating filamentary material |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3781952A (en) * | 1962-08-13 | 1974-01-01 | R Stanley | Textile treatment method and apparatus |
US3946468A (en) * | 1966-03-08 | 1976-03-30 | K. M. G. Machinery Limited | Method of producing textured yarn |
US3924311A (en) * | 1969-04-11 | 1975-12-09 | Robert K Stanley | Strand drawing and crimping treatment |
US3808654A (en) * | 1969-07-31 | 1974-05-07 | R Stanley | Textile treatment method |
US3724037A (en) * | 1971-05-10 | 1973-04-03 | Tmm Research Ltd | Processes and apparatus for crimping synthetic filamentary materials |
US4004330A (en) * | 1972-01-03 | 1977-01-25 | Techniservice Division Textured Yarn Co., Inc. | Textile treatment apparatus |
US3978559A (en) * | 1974-03-29 | 1976-09-07 | Techniservice Corporation | Yarn treating apparatus |
US4669158A (en) * | 1983-10-27 | 1987-06-02 | Val Lesina S.P.A. | Method for preparing warp wound on beams, starting from a series of continuous, partially-drafted thermoplastic yarns |
US5299345A (en) * | 1989-12-18 | 1994-04-05 | Rieter Machine Works, Ltd. | Method and apparatus for producing untwisted yarn from at least two fibril bundles |
US5343601A (en) * | 1991-10-26 | 1994-09-06 | Barmag Ag | Yarn spinning method with high-speed winding |
Also Published As
Publication number | Publication date |
---|---|
AT304751B (de) | 1973-01-25 |
GB1183764A (en) | 1970-03-11 |
GB1183765A (en) | 1970-03-11 |
DE1660430A1 (de) | 1971-07-01 |
GB1183766A (en) | 1970-03-11 |
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