US3892020A - Preparing a textured yarn package, for dyeing - Google Patents
Preparing a textured yarn package, for dyeing Download PDFInfo
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- US3892020A US3892020A US424811A US42481173A US3892020A US 3892020 A US3892020 A US 3892020A US 424811 A US424811 A US 424811A US 42481173 A US42481173 A US 42481173A US 3892020 A US3892020 A US 3892020A
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- yarn
- package
- winding
- dyeing
- texturing
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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
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
- D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
- D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
- D06B5/16—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through yarns, threads or filaments
Definitions
- the present invention relates to an improved process of preparing and dyeing a soft package of a relatively inelastic textured continuous multifilament or spun synthetic polymeric yarn which shrinks substantially under the heating conditions encountered following texturing.
- a process for texturing continuous filament yarn or staple yarn by means of a turbulent air jet is known from Breen. U.S. Pat. No. 2.852.906.
- the turbulent jet forms each filament occasionally into a loop and entangles the filaments to bind the loops into a yarn structure consisting of a more or less compact entangled core. crunodal filament loops extending out from the surface of the core and some filament loops buried within the core structure.
- the yarn is fed into the texturing jet at a rate greater than the take-away speed to provide the excess filament length required for forming loops and a high degree of entanglement.
- the textured yarn After the textured yarn is taken away from the jet at low tension. it must be stretched tostabiiiie the structure. Otherwise. the yarn will stretch when it is woven or knitted at tensions higher than exist in the jet portion of the texturing process and will usually do so nonuniformly because of nonuniform cyclical tensions in weaving and knitting operations. resulting in irregular fabric appearance. Therefore. it is necessary to apply a tension to the yarn greater than that which the yarn will receive in subsequent winding and fabric making operations. Normally. this is done by winding the yarn on a package at sufficient tension tostabilize the yarn and to provide a firm or hard package of minimum volume which can be handled and shipped without damage. However.
- Such hard packages are not suitable for package dyeing because they are so tightly wound that it is difficult for liquid dye to uniformly penetrate the package.
- a soft package of yarn on the other hand. is easily penetrated with liquid dye and is desired for package dyeing of yarn. This has normally been accomplished in the past by rewinding the yarn onto a collapsible core under low winding tension to form a soft package. This additional step of rewinding is costly and time consuming.
- the soft yarn packages are placed in a dye bath and dyed. They are normally stacked in axial alignment on a dye tank loading rod and compressed axially to eliminate spaces between the ends of adjacent yarn packages. Dye is then circulated through the dye tank loading rods which are normally perforated tubes of smaller diameter than the inside diameter of the yarn packages and the dye temperature is raised at a controlled rate.
- a typical dye heat cycle for a yarn which has previously been autoclaved. heats the bath from 60 to 110C. at a rate of 4C. per minute and from to IC. at a rate of 2C. per minute.
- the critical dyeing temperature for such yarn is "0 to l30C.
- the yarn After dyeing. the yarn is rewound onto a cone to provide a finished package of textured and dyed yarn. During winding. the yarn is lubricated to improve its knitting properties.
- the stretching may advantageously be performed by progressing the yarn from the smaller step of a stepped roll which controls the take-away speed of the yarn from the texturing jet and progressing it to larger diameter step ofa diameter'greater by 5 to 20 percent than the smaller diameter, the yarn being progressed from one step to another by the use of guides or freely rotating separator rolls.
- the degree of stretch may advantageously be performed by progressing the yarn from the smaller step of a stepped roll which controls the take-away speed of the yarn from the texturing jet and progressing it to larger diameter step ofa diameter'greater by 5 to 20 percent than the smaller diameter, the yarn being progressed from one step to another by the use of guides or freely rotating separator rolls.
- the degree of stretch may advantageously be performed by progressing the yarn from the smaller step of a stepped roll which controls the take-away speed of the yarn from the texturing jet and progressing it to larger diameter step ofa diameter'greater by 5 to 20 percent than the smaller diameter, the yarn being progressed from one step to another by the use of guides or
- the overfeed minus the stretch is preferably at least 10% but is dependent on the material used or the degree of texture desired.
- the degree of stretch may exceed the overfeed while retaining bulk-giving loops.
- FIG. 4 is a perspective view of a dye loading rod of FIG. 3.
- FIG. 5 is an end view of the dye loading rod of FIG. 4- l DETAILED DESCRIPTION OF THE-PREFERRED EMBODIMENT
- yarn 4 is taken from feed yarn package 2 mounted on platform 3 and passes through tension and stop motion device 5 to feed roll 6 where it may be wrapped several times with the aid of guide 7 to prevent slippage. It then passes to texturing jet 10 which is supplied with compressed air through pipe 8 from a source not shown.
- texturing jet 10 which is supplied with compressed air through pipe 8 from a source not shown.
- the yarn may pass through a tank 9 where water or other treating liquid is applied to the yarn before entering texturing jet 10. It may be preferable to place an enclosure around bath 9 and jet T0 to collect droplets of liquid which escape from or are blown off the yarn.
- the textured yarn then contacts driven roll surface 24 operating at surface speed less than that of feed roll 6.
- the yarn then passes to another roll surface 25 operating at a surface speed faster than roll surface 24.
- Roll surfaces 24 and 25 may be the smaller and larger diameter steps on a single driven stepped roll I7. Multiple wraps to reduce slippage may be provided by grooved guides I5 and 16 or equivalent means.
- the yarn then passes over one or more guides 18 to traverse guide I9 which winds the yarn as soft package 21 on core 20. which is preferably a commercially-available dye spring. collapsible both axially and radially.
- Core 20 is mounted on a chuck (not shown) which holds core 20 at or near its maximum diameter while package 21 is being wound. Yarn is wound at a tension considerably lower than that encountered during the stretching operation following texturing.
- FIG. 2 shows details of a preferred texturing device.
- Texturing jet I0 may preferably be a device of Lubach.
- U.S. Pat. No. 3,545,057 in which compressed air flowing into the device through pipe 8 encounters a severe restriction of such as hole 13 which directs a concentrated stream of high velocity fluid onto yarn 4 as it emerges from yarn guiding outlet 1!.
- the turbulent air and the yarn then pass together through the throat of venturi I2.
- Baffle 14 is free to pivot about hinge pin 23 which is supported by bracket 22 which may be clamped around the periphery of texturing jet I0 and may be adjustable along the length of the jet. Textured yarn leaves jet device I0 at approximately right angles to its direction of travel through the jet. Use of this preferred texturing device not only allows satisfactory texturing at higher speed than prior devices but produces unusually uniform tension in the yarn between the texturing jet and roll I7 which in turn allows more uniform stretching before winding.
- FIG. 3 shows equipment suitable for dyeing the soft packages.
- Yarn packages indicated by 27 and 28 are stacked axially on dye loading rod 29 shown in greater detail in FIGS. 4 and 5.
- the stack of packages is then compressed axially so that the ends of the dye springs compress axially and allow the edges of adjacent packages to contact each other so as to form a uniform column of softly packed yarn.
- the rods are in a conventional yarn dye tank 26.
- the lid of dye tank 26 is then closed and dye is pumped from reservoir 30 through conduit 31.
- Pump 32 forces dye from reservoir 30 through conduits 31 and 33 into dye tank 26, and thence into conduit 34 having vertical pipes which connect with the center of packages 27 and 28.
- Dye is usually at some elevated temperature such as 60C. when it is first introduced into the dye tank 26.
- FIGS. 4 and 5 show a preferred dye loading rod in greater detail.
- Conventional dye equipment generally employs a perforated tube having an outer diameter slightly smaller than the minimum inner diameter of a fully shrunk yarn package.
- the packages may be misaligned with each other by an amount equal to the difference between the inner diameter of the unshrunk package and the outer diameter of the dye rod.
- Such misalignment causes uneven compression of yarn at both the inside and outside of packages and results in uneven dyeing.
- the preferred rod of FIGS. 4 and 5 consists of a longitudinally extending main member 38 having a cross section in the shape of a cross intersecting at angles and having arms of equal length.
- the point of intersection 39 is the longitudinal axis of the rod.
- De pendent from member 38 are at least two longitudinally extending members 40 and 41 that are shown in the shape of a round bar supported on springs 42 which extend in a radial direction from the longitudinal axis 39 of the rod.
- the distance between the longitudinal axis 39 of the main member and the outermost point of either rod 40 or 41 at full extension the distance between the longitudinal axis 39 of the main member and the outermost point of either rod 40 or 41 indicated as L, in the drawings is chosen to coincide with the inside radius of the collapsible core in its initial uncollapsed state. This ensures proper axial alignment of the packages.
- springs 42 compress.
- the lengths of the arms of the main members indicated by L; in the drawing should be slightly smaller than the inside radius of a core after full shrinkage.
- hard pack and soft pack and their derivatives are of course relative.
- a hard packed core of yarn is so tightly wound that it is difficult or impractical to penetrate with a liquid dye uniformly.
- a soft package of yarn. is easily penetrated with liquid dye uniformly.
- a Shore hardness less than 40 is considered a soft package and a Shore hardness over 40 is considered a hard package.
- Shore hardness is a measure of package density as measured with a Durometer, an in strument for testing package density, manufactured by the Shore Instrument and Manufacturing Company, Inc.
- the relative humidity of the room in which winding is performed affects the tension of the yarn as wound on the package, it is important to control the relative humidity of such room within a range of about fi% RH. That is to say, the relative humidity should not vary by more than this amount from time to time during the winding operations, and no winding machine should differ from any other running at the same operating conditions by more than this amount.
- the finished yarn package has a Shore hardness of 24 2 2 with a density of 240 grams per liter.
- the denier of the yarn as wound on the package is approximately 180 (200 d-tex).
- Yarn packages are then stacked axially in a dye device and are exposed to liquid dye which is heated from 60to 110C. at a rate of 1C. per minute and from 110 to 130C. at a rate of 2C. per minute.
- the optimum range for dye pickup for this yarn is 60 to 110C.
- the denier of the yarn after dyeing is about 200 (220 d-tex).
- the yarn shrinks about 11% during this process.
- the dye is held at 150 for at least 30 minutes. then the dye is pumped out of tank 26. the yarn packages are removed from dye rods 28 and are rinsed. Subsequently. the yarn is rewound onto cones and lubricated for knitting or weaving into fabrics. Waste loss during the present process is approximately 2 percent compared to approximately 10 percent for the process of the prior art
- a continuous process for texturing then winding yarn on a package support that includes the steps of overfeeding a feed yarn through an air texturing jet with the resultant formation of texture-giving loops and winding the textured yarn on the package support under sufficient tension to stabilize the yarn without eliminating the loops and form a package of yarn
- the improvement comprising: stretching the textured yarn between the texturing and winding steps. the degree of stretch being sufficient to stabilize the yarn without eliminating the loops; and winding the yarn under relatively low constant tension less than about 0.04 gram per denier to form a package of yarn suitable for package dyeing.
Abstract
A textured yarn is tensioned sufficiently to stabilize the yarn but insufficiently to remove the texture and is wound at a low tension to form a soft package on a collapsible package support. The yarn package is then dyed at an elevated temperature.
Description
United States Patent Koslowski July 1, 1975 [54] PREPARING A TEXTURED YARN 3,425,! 10 2/1969 Willis 28/75 WT E 3,543,358 l2/l970 Breen et al. 1 28/l.4 X PACKAGE FOR DY ING 3,703,753 ll/l972 Binford v. 28/72.l2 [75) Inventor: Manfred Gunter Koslowski,
Vorhelm/Kreis Beckum, Germany [73] Assignee: E. I. du Pont de Nemours & Primary Examiner-L0uis K. Rimrodt Company, Wilmington, Del.
[22] Filed: Dec. 14, 1973 2l A l. N 424,811 1 pp 0 57 ABSTRACT [52] US. Cl 28/72.]2; 28/75 WT; 57/l57 FV i [5|] Int. Cl. D02g 1/16 A textured yam tensloned sufficlently to subdue [58] Field of semtch H 28 21, 72,12 75 the yarn but insulficiently to remove the texture and is 57134 157 wound at a low tension to form a soft package on a collapsible package support. The yarn package is then 56] References cued dyed at an elevated temperature.
UNITED STATES PATENTS 2,852,906 9/1958 Breen 57/157 F 2 Claims, 5 Drawing Figures L0. lEISlOI IIID OVEllFEED USZOZO SHEET I PREPARING A TEXTURED YARN PACKAGE. FOR DYEING BACKGROUND OF THE INVENTION The present invention relates to an improved process of preparing and dyeing a soft package of a relatively inelastic textured continuous multifilament or spun synthetic polymeric yarn which shrinks substantially under the heating conditions encountered following texturing.
A process for texturing continuous filament yarn or staple yarn by means of a turbulent air jet is known from Breen. U.S. Pat. No. 2.852.906. In the case of continuous multifilament yarn. the turbulent jet forms each filament occasionally into a loop and entangles the filaments to bind the loops into a yarn structure consisting of a more or less compact entangled core. crunodal filament loops extending out from the surface of the core and some filament loops buried within the core structure. The yarn is fed into the texturing jet at a rate greater than the take-away speed to provide the excess filament length required for forming loops and a high degree of entanglement.
After the textured yarn is taken away from the jet at low tension. it must be stretched tostabiiiie the structure. Otherwise. the yarn will stretch when it is woven or knitted at tensions higher than exist in the jet portion of the texturing process and will usually do so nonuniformly because of nonuniform cyclical tensions in weaving and knitting operations. resulting in irregular fabric appearance. Therefore. it is necessary to apply a tension to the yarn greater than that which the yarn will receive in subsequent winding and fabric making operations. Normally. this is done by winding the yarn on a package at sufficient tension tostabilize the yarn and to provide a firm or hard package of minimum volume which can be handled and shipped without damage. However. such hard packages are not suitable for package dyeing because they are so tightly wound that it is difficult for liquid dye to uniformly penetrate the package. A soft package of yarn. on the other hand. is easily penetrated with liquid dye and is desired for package dyeing of yarn. This has normally been accomplished in the past by rewinding the yarn onto a collapsible core under low winding tension to form a soft package. This additional step of rewinding is costly and time consuming.
The soft yarn packages are placed in a dye bath and dyed. They are normally stacked in axial alignment on a dye tank loading rod and compressed axially to eliminate spaces between the ends of adjacent yarn packages. Dye is then circulated through the dye tank loading rods which are normally perforated tubes of smaller diameter than the inside diameter of the yarn packages and the dye temperature is raised at a controlled rate. A typical dye heat cycle for a yarn which has previously been autoclaved. heats the bath from 60 to 110C. at a rate of 4C. per minute and from to IC. at a rate of 2C. per minute. The critical dyeing temperature for such yarn is "0 to l30C.
After dyeing. the yarn is rewound onto a cone to provide a finished package of textured and dyed yarn. During winding. the yarn is lubricated to improve its knitting properties.
SUMMARY OF THE INVENTION It has now been found that yarn may be air textured.
stabilized and dyed uniformly by a process comprising the continuous steps of (a) overfeeding the yarn through an air jet texturing process as described in Breen U.S. Pat. No. 2.852.906 (b) stretching the yarn by an amount sufficient to stabilize the yarn but insufficient to eliminate texture-giving loops (c) winding the yarn under relatively low constant tension onto a radially and axially collapsible core at a tension of less than about 0.04 gram per denier to form a soft package. Thereafter. the package of yarn is dyed at elevated temperature to shrink the yarn and dye it simultaneously. The stretching is preferably under a tension higher than the tension which the finished yarn receives in subsequent rewinding, knitting or weaving operations and is preferably by an amount of 5-20 percent. The stretching may advantageously be performed by progressing the yarn from the smaller step of a stepped roll which controls the take-away speed of the yarn from the texturing jet and progressing it to larger diameter step ofa diameter'greater by 5 to 20 percent than the smaller diameter, the yarn being progressed from one step to another by the use of guides or freely rotating separator rolls. The degree of stretch, however.
must usually be less than the degree of overfeed through the texturing jet. in order to retain a substantial degree of loops. When the feed yarn to the texturing operation is fully drawn. the overfeed minus the stretch is preferably at least 10% but is dependent on the material used or the degree of texture desired. When undrawn or partially drawn feed yarn is used. the degree of stretch may exceed the overfeed while retaining bulk-giving loops.
This process significantly reduces the steps required in texturing and dyeing yarn, and thereforereduces costi Waste losses also decline. The use of a stepped roll for stretching the yarn prior to winding a soft package permits use of texturing machines havingonly one powered drive between texturing and windup.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 4 is a perspective view of a dye loading rod of FIG. 3.
FIG. 5 is an end view of the dye loading rod of FIG. 4- l DETAILED DESCRIPTION OF THE-PREFERRED EMBODIMENT Referring to FIG. l. yarn 4 is taken from feed yarn package 2 mounted on platform 3 and passes through tension and stop motion device 5 to feed roll 6 where it may be wrapped several times with the aid of guide 7 to prevent slippage. It then passes to texturing jet 10 which is supplied with compressed air through pipe 8 from a source not shown. Optionally. the yarn may pass through a tank 9 where water or other treating liquid is applied to the yarn before entering texturing jet 10. It may be preferable to place an enclosure around bath 9 and jet T0 to collect droplets of liquid which escape from or are blown off the yarn. The textured yarn then contacts driven roll surface 24 operating at surface speed less than that of feed roll 6. The yarn then passes to another roll surface 25 operating at a surface speed faster than roll surface 24. Roll surfaces 24 and 25 may be the smaller and larger diameter steps on a single driven stepped roll I7. Multiple wraps to reduce slippage may be provided by grooved guides I5 and 16 or equivalent means. The yarn then passes over one or more guides 18 to traverse guide I9 which winds the yarn as soft package 21 on core 20. which is preferably a commercially-available dye spring. collapsible both axially and radially. Core 20 is mounted on a chuck (not shown) which holds core 20 at or near its maximum diameter while package 21 is being wound. Yarn is wound at a tension considerably lower than that encountered during the stretching operation following texturing.
FIG. 2 shows details of a preferred texturing device. Texturing jet I0 may preferably be a device of Lubach. U.S. Pat. No. 3,545,057 in which compressed air flowing into the device through pipe 8 encounters a severe restriction of such as hole 13 which directs a concentrated stream of high velocity fluid onto yarn 4 as it emerges from yarn guiding outlet 1!. The turbulent air and the yarn then pass together through the throat of venturi I2. It may also be preferable to employ floating baffle plate I4 which is described in more detail in copending application Koslowski U.S. Ser. No. 315,563 filed Dec. I5, I972. Baffle 14 is free to pivot about hinge pin 23 which is supported by bracket 22 which may be clamped around the periphery of texturing jet I0 and may be adjustable along the length of the jet. Textured yarn leaves jet device I0 at approximately right angles to its direction of travel through the jet. Use of this preferred texturing device not only allows satisfactory texturing at higher speed than prior devices but produces unusually uniform tension in the yarn between the texturing jet and roll I7 which in turn allows more uniform stretching before winding.
FIG. 3 shows equipment suitable for dyeing the soft packages. Yarn packages indicated by 27 and 28 are stacked axially on dye loading rod 29 shown in greater detail in FIGS. 4 and 5. The stack of packages is then compressed axially so that the ends of the dye springs compress axially and allow the edges of adjacent packages to contact each other so as to form a uniform column of softly packed yarn. The rods are in a conventional yarn dye tank 26. The lid of dye tank 26 is then closed and dye is pumped from reservoir 30 through conduit 31. Pump 32 forces dye from reservoir 30 through conduits 31 and 33 into dye tank 26, and thence into conduit 34 having vertical pipes which connect with the center of packages 27 and 28. Dye is usually at some elevated temperature such as 60C. when it is first introduced into the dye tank 26. Thereafter, hot water or steam is introduced through conduit 36 from a reservoir (not shown), is circulated through heating coil 35 and is removed through conduit 37. As the temperature rises, the yarn shrinks and the dye spring collapses radially to maintain a soft package of relatively uniform density having sufficient porosity to allow easy and uniform flow of dye through the package.
FIGS. 4 and 5 show a preferred dye loading rod in greater detail. Conventional dye equipment generally employs a perforated tube having an outer diameter slightly smaller than the minimum inner diameter of a fully shrunk yarn package. When yarn packages of unshrunk yarn having a substantially larger internal diameter than the outside diameter of the dye rod are stacked on such a rod. the packages may be misaligned with each other by an amount equal to the difference between the inner diameter of the unshrunk package and the outer diameter of the dye rod. Such misalignment causes uneven compression of yarn at both the inside and outside of packages and results in uneven dyeing. The preferred rod of FIGS. 4 and 5 consists of a longitudinally extending main member 38 having a cross section in the shape of a cross intersecting at angles and having arms of equal length. The point of intersection 39 is the longitudinal axis of the rod. De pendent from member 38 are at least two longitudinally extending members 40 and 41 that are shown in the shape of a round bar supported on springs 42 which extend in a radial direction from the longitudinal axis 39 of the rod. When the springs are in expanded position holding rods 40 and 41 at full extension, the distance between the longitudinal axis 39 of the main member and the outermost point of either rod 40 or 41 at full extension, the distance between the longitudinal axis 39 of the main member and the outermost point of either rod 40 or 41 indicated as L, in the drawings is chosen to coincide with the inside radius of the collapsible core in its initial uncollapsed state. This ensures proper axial alignment of the packages. As the yarn shrinks radially. springs 42 compress. The lengths of the arms of the main members indicated by L; in the drawing should be slightly smaller than the inside radius of a core after full shrinkage.
The use of the terms hard pack" and soft pack" and their derivatives are of course relative. As stated before, a hard packed core of yarn is so tightly wound that it is difficult or impractical to penetrate with a liquid dye uniformly. A soft package of yarn. on the other hand, is easily penetrated with liquid dye uniformly. In general, a Shore hardness less than 40 is considered a soft package and a Shore hardness over 40 is considered a hard package. Shore hardness is a measure of package density as measured with a Durometer, an in strument for testing package density, manufactured by the Shore Instrument and Manufacturing Company, Inc.
Since the relative humidity of the room in which winding is performed affects the tension of the yarn as wound on the package, it is important to control the relative humidity of such room within a range of about fi% RH. That is to say, the relative humidity should not vary by more than this amount from time to time during the winding operations, and no winding machine should differ from any other running at the same operating conditions by more than this amount.
Although the following example concerns polyester yarn, similar conditions may be employed for texturing nylon, polypropylene or other yarns of commercial importance. In general, yarns having higher shrinkage during heating should be wound on core 20 at lower tensions. Whereas. a single end of denier yarn is exemplified, multiple ends of the same or different yarns may be fed at the same or different speeds to the texturing jet.
EXAMPLE Dacron polyester yarn of 150 denier (167 d-tex) having 68 filaments designated as R-l0. Type 56, is placed on a device of FIG. I in which feed roll 6 is operating at 482 yards per minute (440 meters per minute). The yarn passes through water bath 9 into texturing jet 10 shown in FIG. 2 in which hole 13 is 2.78 millimeters. yarn hole 11 is 0.51 millimeter and renturi 12 is 1.78 millimeters diameter. Air pressure is 118 lbs/sq. in. gauge (8 atmospheres). Baffle plate 14 is approximately 68 millimeters from hinge point 23 to the end and is 40 millimeters wide. Yarn passes from the jet at low uniform tension to a smaller diameter step of roll 17 which is operating at 340 yards/min. (311 meters/- min.) with a resultant o erfeed between feed roll 6 and roll surface 24 of 42 percent. Roll surface 25 is operating at 398 yards per minute (364 meters per min.) thus stretching the yarn between roll surfaces 24 and 25 by 14.5 percent. Therefore. the stretch which the yarn re ceives on the stepped roll is considerably less than the initial degree of overfeed. and the stretching serves mainly to stabilize the yarn without destroying its bulk and texture. The yarn is wrapped around guide 15 and passes to the larger diameter step of roll 17. The yarn is then wound on the larger step with the aid of guide 16 and passes over to guide rods 18 to traverse 19 where the yarn is wound at a tension of4 to 5 grams on dye spring 20 which is collapsible both radially and axially. The finished yarn package has a Shore hardness of 24 2 2 with a density of 240 grams per liter. The denier of the yarn as wound on the package is approximately 180 (200 d-tex). Yarn packages are then stacked axially in a dye device and are exposed to liquid dye which is heated from 60to 110C. at a rate of 1C. per minute and from 110 to 130C. at a rate of 2C. per minute. The optimum range for dye pickup for this yarn is 60 to 110C. The denier of the yarn after dyeing is about 200 (220 d-tex). The yarn shrinks about 11% during this process. The dye is held at 150 for at least 30 minutes. then the dye is pumped out of tank 26. the yarn packages are removed from dye rods 28 and are rinsed. Subsequently. the yarn is rewound onto cones and lubricated for knitting or weaving into fabrics. Waste loss during the present process is approximately 2 percent compared to approximately 10 percent for the process of the prior art.
What is claimed is:
1. In a continuous process for texturing then winding yarn on a package support that includes the steps of overfeeding a feed yarn through an air texturing jet with the resultant formation of texture-giving loops and winding the textured yarn on the package support under sufficient tension to stabilize the yarn without eliminating the loops and form a package of yarn, the improvement comprising: stretching the textured yarn between the texturing and winding steps. the degree of stretch being sufficient to stabilize the yarn without eliminating the loops; and winding the yarn under relatively low constant tension less than about 0.04 gram per denier to form a package of yarn suitable for package dyeing.
2. A process for dyeing a yarn package comprising the continuous steps of overfeeding a feed yarn through an air texturing jet with the resultant formation of texture-giving loops; stretching the textured yarn to stabilize the yarn without eliminating the loops; winding the textured yarn under relatively low constant tension less than about 0.04 gram per denier into a package on a collapsible package support to form a package of yarn; and the separate step of dyeing the package at an elevated temperature of from about 60C. to about C. 1k l=
Claims (2)
1. In a continuous process for texturing then winding yarn on a package support that includes the steps of overfeeding a feed yarn through an air texturing jet with the resultant formation of texture-giving loops and winding the textured yarn on the package support under sufficient tension to stabilize the yarn without eliminating the loops and form a package of yarn, the improvement comprising: stretching the textured yarn between the texturing and winding steps, the degree of stretch being sufficient to stabilize the yarn without eliminating the loops; and winding the yarn under relatively low constant tension less than about 0.04 gram per denier to form a package of yarn suitable for package dyeing.
2. A process for dyeing a yarn package comprising the continuous steps of overfeeding a feed yarn through an air texturing jet with the resultant formation of texture-giving loops; stretching the textured yarn to stabilize the yarn without eliminating the loops; winding the textured yarn under relatively low constant tension less than about 0.04 gram per denier into a package on a collapsible package support to form a package of yarn; and the separate step of dyeing the package at an elevated temperature of from about 60*C. to about 130*C.
Priority Applications (20)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US424811A US3892020A (en) | 1973-12-14 | 1973-12-14 | Preparing a textured yarn package, for dyeing |
AR256900A AR205804A1 (en) | 1973-12-14 | 1974-01-01 | PROCEDURE FOR PREPARING AND HOLDING A SOFT COIL |
AU76293/74A AU477846B2 (en) | 1973-12-14 | 1974-12-11 | Preparing a textured yarn package, for dyeing |
FR7440794A FR2254659B1 (en) | 1973-12-14 | 1974-12-11 | |
JP49142086A JPS5090737A (en) | 1973-12-14 | 1974-12-12 | |
CA215,822A CA1020734A (en) | 1973-12-14 | 1974-12-12 | Preparing a textured yarn package for dyeing |
NL7416295A NL7416295A (en) | 1973-12-14 | 1974-12-13 | METHOD OF MANUFACTURING A SOFT WRAP. |
DK652474A DK652474A (en) | 1973-12-14 | 1974-12-13 | |
IL46235A IL46235A (en) | 1973-12-14 | 1974-12-13 | Process for preparing a package suitable for dyeing of textured yarn |
ES432917A ES432917A1 (en) | 1973-12-14 | 1974-12-13 | Preparing a textured yarn package, for dyeing |
BE151499A BE823344A (en) | 1973-12-14 | 1974-12-13 | PROCESS FOR PREPARING SPOOLS OF YARN FOR DYING |
GB5396974A GB1467522A (en) | 1973-12-14 | 1974-12-13 | Dyeing of air textured yarn |
CH1659174A CH565878A5 (en) | 1973-12-14 | 1974-12-13 | |
FI3609/74A FI360974A (en) | 1973-12-14 | 1974-12-13 | |
ZA00747971A ZA747971B (en) | 1973-12-14 | 1974-12-13 | Process for preparing a soft package |
AT995174A ATA995174A (en) | 1973-12-14 | 1974-12-13 | Process for the production of soft yarn bodies from uncrimped, air-textured bulky yarn |
DE19742459102 DE2459102B2 (en) | 1973-12-14 | 1974-12-13 | METHOD FOR MANUFACTURING SOFT YARN BODIES FOR PACKAGING DYEING UNCREAMED, AIR-TEXTURED LUXURY YARN |
NO744502A NO744502L (en) | 1973-12-14 | 1974-12-13 | |
BR10446/74A BR7410446D0 (en) | 1973-12-14 | 1974-12-13 | PROCESS TO PREPARE A FLEXIBLE BALE SUITABLE FOR BALE DYEING |
SE7415688A SE395483B (en) | 1973-12-14 | 1974-12-13 | PROCEDURE FOR PRODUCING A SOFT BACK OF AIR-EXTRACTED YARN, SUITABLE FOR BUNTING |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US424811A US3892020A (en) | 1973-12-14 | 1973-12-14 | Preparing a textured yarn package, for dyeing |
Publications (1)
Publication Number | Publication Date |
---|---|
US3892020A true US3892020A (en) | 1975-07-01 |
Family
ID=23683971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US424811A Expired - Lifetime US3892020A (en) | 1973-12-14 | 1973-12-14 | Preparing a textured yarn package, for dyeing |
Country Status (19)
Country | Link |
---|---|
US (1) | US3892020A (en) |
JP (1) | JPS5090737A (en) |
AR (1) | AR205804A1 (en) |
AT (1) | ATA995174A (en) |
BE (1) | BE823344A (en) |
BR (1) | BR7410446D0 (en) |
CA (1) | CA1020734A (en) |
CH (1) | CH565878A5 (en) |
DE (1) | DE2459102B2 (en) |
DK (1) | DK652474A (en) |
ES (1) | ES432917A1 (en) |
FI (1) | FI360974A (en) |
FR (1) | FR2254659B1 (en) |
GB (1) | GB1467522A (en) |
IL (1) | IL46235A (en) |
NL (1) | NL7416295A (en) |
NO (1) | NO744502L (en) |
SE (1) | SE395483B (en) |
ZA (1) | ZA747971B (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4035883A (en) * | 1975-03-14 | 1977-07-19 | Fiber Industries, Inc. | Multipurpose intermingling jet and process |
US4041583A (en) * | 1976-05-20 | 1977-08-16 | E. I. Du Pont De Nemours And Company | Yarn texturing jet |
US4059873A (en) * | 1975-08-29 | 1977-11-29 | E. I. Du Pont De Nemours And Company | Fluid process for making continuous filament heather yarn |
US4081887A (en) * | 1975-01-15 | 1978-04-04 | Crimpfil Limited | Production of bulky, continuous filament yarn |
US4096611A (en) * | 1976-08-03 | 1978-06-27 | Heberlein Maschinenfabrik Ag | Apparatus for moistening and texturing yarns |
US4096612A (en) * | 1976-10-13 | 1978-06-27 | E. I. Du Pont De Nemours And Company | Jet for fluid texturing yarn |
US4107828A (en) * | 1977-05-04 | 1978-08-22 | E. I. Du Pont De Nemours And Company | Yarn treating jet |
DE2749867A1 (en) * | 1977-11-08 | 1979-05-10 | Barmag Barmer Maschf | Synthetic filament yarn crimping process - incorporates a stabilising zone so that all stages can be structured independently |
US4157605A (en) * | 1975-07-24 | 1979-06-12 | E. I. Du Pont De Nemours And Company | Fluid jet texturing apparatus |
US4189812A (en) * | 1976-10-13 | 1980-02-26 | E. I. Du Pont De Nemours And Company | Jet for fluid texturing yarn |
DE2918336A1 (en) * | 1979-05-07 | 1980-11-13 | Teijin Ltd | TEXTURABLE FILAMENT YARN, METHOD FOR THE PRODUCTION THEREOF AND A DEVICE FOR CARRYING OUT THIS METHOD |
US4338776A (en) * | 1977-11-08 | 1982-07-13 | Barmag Barmer Maschinenfabrik Aktiengesellschaft | Process for the production of a crimped continuous multifilament yarn |
DE2760052C2 (en) * | 1977-11-08 | 1983-09-22 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Process for the production of a supply package for weaving and knitting machines |
DE3909516A1 (en) * | 1989-03-22 | 1990-01-04 | Hirschburger Maschinen Gmbh | AIR TEXTURING MACHINE |
US4922593A (en) * | 1988-04-07 | 1990-05-08 | E. I. Du Pont De Nemours And Company | System for preparing highly coherent air jet textured yarn |
EP0443390A1 (en) | 1990-02-15 | 1991-08-28 | Barmag Ag | Process for the production of an air-textured yarn |
US5054174A (en) * | 1988-12-13 | 1991-10-08 | Barmag Ag | Method of producing an air textured yarn |
US5136763A (en) * | 1990-12-18 | 1992-08-11 | E. I. Du Pont De Nemours And Company | Process for the production of uniform yarns via reduced tension-induced slippage |
DE4004721C2 (en) * | 1988-12-13 | 2002-09-26 | Staehle Gmbh H | Process for the production of an air textured thread |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2634460C2 (en) * | 1976-07-29 | 1982-07-01 | Heberlein Maschinenfabrik AG, 9630 Wattwil | Apparatus for texturing yarns consisting of endless synthetic filaments |
DE4221352C2 (en) * | 1992-06-29 | 1998-01-08 | Bayer Ag | Process for dyeing yarn |
EP2035311A1 (en) * | 2006-06-23 | 2009-03-18 | SSM Schärer Schweiter Mettler AG | Yarn spool production method and yarn processing machine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852906A (en) * | 1951-12-14 | 1958-09-23 | Du Pont | Method and apparatus for producing bulky continuous filament yarn |
US3425110A (en) * | 1967-07-20 | 1969-02-04 | Logan Inc Jonathan | Method of stabilizing bulked continuous filament thermoplastic yarn |
US3543358A (en) * | 1967-10-24 | 1970-12-01 | Du Pont | Process for increasing the bulk of multifilament yarn |
US3703753A (en) * | 1971-05-05 | 1972-11-28 | Fiber Industries Inc | Method for producing a bulked yarn and apparatus therefor |
-
1973
- 1973-12-14 US US424811A patent/US3892020A/en not_active Expired - Lifetime
-
1974
- 1974-01-01 AR AR256900A patent/AR205804A1/en active
- 1974-12-11 FR FR7440794A patent/FR2254659B1/fr not_active Expired
- 1974-12-12 JP JP49142086A patent/JPS5090737A/ja active Pending
- 1974-12-12 CA CA215,822A patent/CA1020734A/en not_active Expired
- 1974-12-13 SE SE7415688A patent/SE395483B/en unknown
- 1974-12-13 BR BR10446/74A patent/BR7410446D0/en unknown
- 1974-12-13 BE BE151499A patent/BE823344A/en unknown
- 1974-12-13 NO NO744502A patent/NO744502L/no unknown
- 1974-12-13 ZA ZA00747971A patent/ZA747971B/en unknown
- 1974-12-13 IL IL46235A patent/IL46235A/en unknown
- 1974-12-13 ES ES432917A patent/ES432917A1/en not_active Expired
- 1974-12-13 CH CH1659174A patent/CH565878A5/xx not_active IP Right Cessation
- 1974-12-13 DK DK652474A patent/DK652474A/da unknown
- 1974-12-13 AT AT995174A patent/ATA995174A/en not_active Application Discontinuation
- 1974-12-13 FI FI3609/74A patent/FI360974A/fi unknown
- 1974-12-13 GB GB5396974A patent/GB1467522A/en not_active Expired
- 1974-12-13 NL NL7416295A patent/NL7416295A/en unknown
- 1974-12-13 DE DE19742459102 patent/DE2459102B2/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852906A (en) * | 1951-12-14 | 1958-09-23 | Du Pont | Method and apparatus for producing bulky continuous filament yarn |
US3425110A (en) * | 1967-07-20 | 1969-02-04 | Logan Inc Jonathan | Method of stabilizing bulked continuous filament thermoplastic yarn |
US3543358A (en) * | 1967-10-24 | 1970-12-01 | Du Pont | Process for increasing the bulk of multifilament yarn |
US3703753A (en) * | 1971-05-05 | 1972-11-28 | Fiber Industries Inc | Method for producing a bulked yarn and apparatus therefor |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081887A (en) * | 1975-01-15 | 1978-04-04 | Crimpfil Limited | Production of bulky, continuous filament yarn |
US4035883A (en) * | 1975-03-14 | 1977-07-19 | Fiber Industries, Inc. | Multipurpose intermingling jet and process |
US4157605A (en) * | 1975-07-24 | 1979-06-12 | E. I. Du Pont De Nemours And Company | Fluid jet texturing apparatus |
US4059873A (en) * | 1975-08-29 | 1977-11-29 | E. I. Du Pont De Nemours And Company | Fluid process for making continuous filament heather yarn |
US4041583A (en) * | 1976-05-20 | 1977-08-16 | E. I. Du Pont De Nemours And Company | Yarn texturing jet |
US4096611A (en) * | 1976-08-03 | 1978-06-27 | Heberlein Maschinenfabrik Ag | Apparatus for moistening and texturing yarns |
US4189812A (en) * | 1976-10-13 | 1980-02-26 | E. I. Du Pont De Nemours And Company | Jet for fluid texturing yarn |
US4096612A (en) * | 1976-10-13 | 1978-06-27 | E. I. Du Pont De Nemours And Company | Jet for fluid texturing yarn |
US4107828A (en) * | 1977-05-04 | 1978-08-22 | E. I. Du Pont De Nemours And Company | Yarn treating jet |
DE2749867A1 (en) * | 1977-11-08 | 1979-05-10 | Barmag Barmer Maschf | Synthetic filament yarn crimping process - incorporates a stabilising zone so that all stages can be structured independently |
USRE32047E (en) * | 1977-11-08 | 1985-12-17 | Barmag Barmer Maschinenfabrik Aktiengessellschaft | Process for the production of a crimped continuous multifilament yarn |
US4338776A (en) * | 1977-11-08 | 1982-07-13 | Barmag Barmer Maschinenfabrik Aktiengesellschaft | Process for the production of a crimped continuous multifilament yarn |
DE2760052C2 (en) * | 1977-11-08 | 1983-09-22 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Process for the production of a supply package for weaving and knitting machines |
DE2918336A1 (en) * | 1979-05-07 | 1980-11-13 | Teijin Ltd | TEXTURABLE FILAMENT YARN, METHOD FOR THE PRODUCTION THEREOF AND A DEVICE FOR CARRYING OUT THIS METHOD |
US4922593A (en) * | 1988-04-07 | 1990-05-08 | E. I. Du Pont De Nemours And Company | System for preparing highly coherent air jet textured yarn |
US5054174A (en) * | 1988-12-13 | 1991-10-08 | Barmag Ag | Method of producing an air textured yarn |
DE4004721C2 (en) * | 1988-12-13 | 2002-09-26 | Staehle Gmbh H | Process for the production of an air textured thread |
DE3909516A1 (en) * | 1989-03-22 | 1990-01-04 | Hirschburger Maschinen Gmbh | AIR TEXTURING MACHINE |
EP0443390A1 (en) | 1990-02-15 | 1991-08-28 | Barmag Ag | Process for the production of an air-textured yarn |
US5142754A (en) * | 1990-02-15 | 1992-09-01 | Barmag Ag | Method and apparatus for producing an air textured yarn |
US5136763A (en) * | 1990-12-18 | 1992-08-11 | E. I. Du Pont De Nemours And Company | Process for the production of uniform yarns via reduced tension-induced slippage |
Also Published As
Publication number | Publication date |
---|---|
IL46235A (en) | 1977-10-31 |
IL46235A0 (en) | 1975-03-13 |
ES432917A1 (en) | 1976-11-01 |
DE2459102B2 (en) | 1977-05-05 |
NL7416295A (en) | 1975-06-17 |
ZA747971B (en) | 1976-01-28 |
BR7410446D0 (en) | 1975-09-16 |
FR2254659B1 (en) | 1977-04-08 |
DE2459102A1 (en) | 1975-06-19 |
DK652474A (en) | 1975-08-11 |
AU7629374A (en) | 1976-06-17 |
SE395483B (en) | 1977-08-15 |
BE823344A (en) | 1975-06-13 |
CH565878A5 (en) | 1975-08-29 |
GB1467522A (en) | 1977-03-16 |
SE7415688L (en) | 1975-06-16 |
FI360974A (en) | 1975-06-15 |
NO744502L (en) | 1975-07-14 |
ATA995174A (en) | 1977-09-15 |
CA1020734A (en) | 1977-11-15 |
FR2254659A1 (en) | 1975-07-11 |
JPS5090737A (en) | 1975-07-21 |
AR205804A1 (en) | 1976-06-07 |
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