US3702492A - Yarn bulking methods - Google Patents

Yarn bulking methods Download PDF

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Publication number
US3702492A
US3702492A US48034A US3702492DA US3702492A US 3702492 A US3702492 A US 3702492A US 48034 A US48034 A US 48034A US 3702492D A US3702492D A US 3702492DA US 3702492 A US3702492 A US 3702492A
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United States
Prior art keywords
yarn
package
heated fluid
bulking
chamber
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Expired - Lifetime
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US48034A
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English (en)
Inventor
Larry N Pearce
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Deering Milliken Research Corp
Milliken Research Corp
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Milliken Research Corp
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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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D02G1/205—After-treatments for fixing crimp or curl

Definitions

  • a method of bulking yarn in package form comprises subjecting yarn in a substantially tensionless package to a heated fluid at a super atmospheric pressure. Also apparatus for performing the method and the bulked package.
  • a LARRY N.PEARCE iww AT TORNEY YARN BULKING METHODS This invention relates to a novel method and apparatus for treating textile yarns to increase the bulk thereof. More particularly, the invention relates to a method and apparatus for bulking yarn in package form.
  • skein dyeing One commonly employed method for bulking yarns is the skein dyeing process.
  • skein dyeing the yarn to be bulked is wound into skein form from bobbins or cones and the skeins loaded on a large carrier by draping the skeins over horizontally mounted poles.
  • the carriers loaded with skeins are placed in a dye bath to dye the yarn and to simultaneously bulk the yarn.
  • the skeins are centrifuged to extract excess liquid and then backwound into packages which are dried in an oven prior to shipping.
  • the present invention provides a novel method and apparatus for bulking yarn in a wound package form with a high degree of uniformity along its length.
  • the invention also provides a novel method for providing polyester yarns having a substantially higher degree of bulk than is achievable by the skeindyeing process.
  • a further advantage of the invention is the bulking in a package form suitable for subsequent pressure dyeing methods.
  • Another advantage is the bulking of single packages which permits the bulking apparatus to be located adjacent the winding apparatus.
  • a method of the invention for bulking yarn in package form comprises subjecting yarn in a substantially tensionless package to a heated fluid at a super atmospheric pressure.
  • the heated fluid is passed through the yarn package from the inside to the outside thereof and preferably, the fluid flow is advanced along the length of the package from one end to the other.
  • the fluid generally is an aqueous fluid and particularly steam.
  • Yarn packages suitable for bulking in accordance with the method of the invention are packages in which the yarn is in a substantially tensionless condition.
  • one yarn package configuration which may be employed successfully is disposed around a central core in a helical pattern so that the yarn forms a package composed of an ascending series of loops in which the yarn is adjacent the core along one portion of each loop and adjacent the periphery of the package at another portion thereof.
  • suitable patterns are shown in FIGS. 3-5 of Polak et al., US. Pat. No. 2,404,742, with the pattern of FIG. 5 being preferred.
  • FIGS. 1-9 are schematic illustrations of one processing sequence of the bulking method of the invention.
  • FIG. is an exploded perspective view of one form of apparatus for performing the bulking method of the invention.
  • FIG. 11 is an exploded perspective view of the ap paratus shown in FIG. 10 during another step in the bulking method of the invention.
  • FIG. 12 is an enlarged side elevation of the apparatus shown in FIG. 10;
  • FIG. 13 is an enlarged sectional view of the dome portion of the apparatus shown in FIG. 10;
  • FIG. 14 is a sectional view taken along line l4l4 of FIG. 13;
  • FIG. 15 is an enlarged partial top view of the package support taken along line 1515 of FIG. 12.
  • yarn which is the form of a substantially tensionless package 11 on a core 12 is positioned on a support or base 13 with the core disposed over a movable nozzle 14.
  • a plenum chamber 15 Below the package 11 and surrounding the nozzle 14 is a plenum chamber 15.
  • Dome 19 has a line 20 for introducing an inert gas into the dome and also a pressure gauge 21.
  • the dome also includes an inner conical portion 22.
  • a line 23 for exhausting gas from the vicinity of the package connects to base 13.
  • the dome 19 is disposed over the package 11 with cone 22 in contact with the package and flange 17 engaging rim 18 to form a treating chamber.
  • FIG. 3 a flow of air is introduced through line 20 to pressurize the chamber.
  • FIG. 4 shows the start of the heat treating step with a heated fluid, e.g., steam, being forced from nozzle 14 into plenum chamber 15.
  • a heated fluid e.g., steam
  • This flow of steam into plenum chamber 15 advantageously is performed prior to the beginning of the steaming step to insure that the velocity of the steam and the temperature of the nozzle 14 are within operating limits before the steam contacts the yarn and the nozzle advances through the package 1 l as shown in FIG. 5.
  • This condition is particularly important with yarns such as polyester yarns with which full bulking cannot ordinarily be achieved if partial bulking has taken place prematurely.
  • the processing sequence particularly suitable for the bulking of polyester yarn subjects the yarn to an inert gas at a super atmospheric pressure prior to the heat treating step.
  • gases include air, nitrogen, carbon dioxide, argon and similar gases which are inert to the yarn.
  • Both the inert gas and the succeeding hot fluid treatment are performed at a super atmospheric pressure, for example, between about 2 and 50 pounds per square inch gauge pressure and preferably between about 5 and 25 psi. While the inert gas treatment generally is performed at ambient temperatures, the hot fluid treatment will be at an elevated temperature,
  • the nozzle have an orifice which will pass the fluid through the package from the inside to the outside thereof with sufficient velocity to uniformly bulk the package.
  • a steam flow rate between about 5 and 25 pounds per minute advantageously may be employed.
  • the nozzle orifice deflects the fluid in a slightly downward or backward direction during the advance through the package.
  • FIGS. -12 of the drawings One preferred form of apparatus for performing the bulking method of the invention is shown in FIGS. -12 of the drawings.
  • a yarn package 30 is positioned on a support 31 disposed above a base 32.
  • a dome 33 is located concentrically with package 30 and movable longitudinally into contact with base 32.
  • Movement of dome 33 is achieved with a cylinder 34 which is operatively connected thereto through bracket 35.
  • the movement of the dome is controlled by a plurality of guide rollers 37 and 38 which contact support member 39.
  • Support member 39 has an opening 41 therein for safety stop piston 42 of cylinder 43.
  • Dome 33 has an air line 47 connected thereto to provide for the flow of a gas into the dome cavity.
  • a cone 48 Disposed within the upper portion-of the dome is a cone 48 which engages the upper portion of the yarn package 30 when the dome surrounds the package.
  • a weir 49 is positioned within the lower portion of the dome to collect any water condensing on the inside walls of the dome.
  • Rim 51 of the dome 33 includes a pair of cam surfaces 52 for securing the dome to the base 32 through a locking ring assembly 53.
  • the locking ring assembly has a periphery which is movable by means of cylinder 54 and a plate 55.
  • a switch 56 is positioned adjacent cylinder 54 to sense movement thereof.
  • Rollers 57 are mounted in association with the locking ring assembly 53 through brackets 58 for engagement with the cam surfaces 52 of the dome flange 51 when the lock ring assembly is rotated to the closed position.
  • a spring loaded locking pin 59 is disposed for engagement with an opening in plate 55 when the locking ring assembly 53 is in its closed position.
  • a sensing switch 60 is located adjacent locking pin 59.
  • a nozzle 61 is positioned in a central opening of base 32 as shown in FIG. 12.
  • a seal 62 is disposed within the opening and bears against the surface of the nozzle.
  • Nozzle 61 has a transverse opening 63 adjacent the end thereof through which the fluid is emitted. in the normal rest or downward position of the nozzle 61, the transverse opening 63 is located within a plenum chamber 64 disposed below the base 32. Drains 65 are positioned about the periphery of the base 32 to permit the removal of fluid and/or condensate formed during the processing of the yarn. Fluid is transmitted to the nozzle 61 through a line 67 including a valve 68 as shown in FIGS. 10 and 11.
  • the nozzle is moved vertically during processing by a drive mechanism including chains 69 and sprockets 70 and 71.
  • Sprockets 71 are'connected through shaft 72 to pinion gear 73 which engages rack 74.
  • Rack 74 is actuated by cylinder 75.
  • the movement of nozzle 61 is guided by roller 77 moving along guide rail .78.
  • Guide roller 77 is connected to nozzle 61 through a bracket 79.
  • the action of cylinder is controlled by limit switches 81 and 82 positioned to engage the guidebracket 79 at the upper and lower extremities of the noule movement.
  • a yarn package 30 is positioned on support 31, and suitable controls (not shown) are actuated causing piston 42 to withdraw from opening 41, removing the safety stop from the path of dome 33 so that dome 33 is lowered by the action of cylinder 34 into contact with base 32.
  • roller 38 bears against connecting rod 44 to actuate switch 45.
  • cylinder 54 rotates locking ring assembly 53 so that rollers 57 engage cam surfaces 52 of the dome flange 51.
  • pin 59 engages an opening in plate 55 to lock the ring and base to the dome.
  • the present invention provides a novel method and apparatus for bulking yarn in a tensionless package configuration. Furthermore, the method of the invention results in a product having a high degree of bulk uniformity along the length of the packaged yarn. Moreover, the invention enables polyester yarn to be bulked to a substantially higher degree than is achievable by skein dyeing processes. Also, the bulked yarn package is suitable for use in pressure dyeing techniques. In addition, since the apparatus permits the bulking of single packages, the bulking apparatus may be located adjacent the package winding station. This minimizes the possibility of damages to the packages which have been wound in a loose, substantially tensionless form.
  • An improve method of bulking yarn in package form in a closed chamber designed to accommodate a single yarn package comprising the steps of: confining a package of yarn in said chamber, subjecting the package of yarn to an inert gas above atmosphere pressure, introducing a heated fluid into said chamber, passing said heated fluid through said yarn package from the inside to the outside thereof to bulk the yarn in said yarn package and exhausting said heated fluid from said chamber.
  • An improved method of bulking a polyester yarn in package form in a closed chamber designed to accommodate a single yearn package comprising the steps of: confining a package of yarn in said chamber, Subjecting the closed chamber prior to heat treating, introducing a heated fluid into said chamber to a super atmospheric pressure subjecting said package of yarn to said heated fluid to bulk the yarn in said package and exhausting said heated fluid from said chamber after subjecting said package of yarn thereto.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Unwinding Of Filamentary Materials (AREA)
US48034A 1970-06-22 1970-06-22 Yarn bulking methods Expired - Lifetime US3702492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4803470A 1970-06-22 1970-06-22

Publications (1)

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US3702492A true US3702492A (en) 1972-11-14

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Country Status (10)

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US (1) US3702492A (de)
JP (1) JPS5115131B1 (de)
BE (1) BE768863A (de)
CA (1) CA939131A (de)
DE (1) DE2130667B2 (de)
ES (2) ES392486A1 (de)
FR (1) FR2096420A1 (de)
GB (1) GB1362551A (de)
LU (1) LU63385A1 (de)
NL (1) NL7108355A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081888A (en) * 1976-03-26 1978-04-04 Toray Industries, Inc. Apparatus for producing compact yarn package
CN1301349C (zh) * 2002-08-12 2007-02-21 三菱丽阳株式会社 丙烯腈系纤维的热处理方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1560575A (en) * 1923-12-01 1925-11-10 Anilin Fabrikation Ag Apparatus for treating artificial threads wound on bobbins
US1815027A (en) * 1928-06-08 1931-07-14 Murch Frank Gilman Textile material and process of making
FR835050A (fr) * 1937-07-19 1938-12-09 Obermaier & Cie Broche pour le traitement par voie humide des gâteaux à filer de soie artificielle ou de bobines
US2863208A (en) * 1953-12-29 1958-12-09 Owens Corning Fiberglass Corp Method for packaging a continuous strand
US2936508A (en) * 1957-02-16 1960-05-17 Buddecke Heinrich Yarn packaging apparatus
US2962857A (en) * 1960-12-06 Yarn and method of making same
US3234627A (en) * 1962-07-31 1966-02-15 Bancroft & Sons Co J Dye package
US3289440A (en) * 1961-11-18 1966-12-06 Buddecke Heinrich Apparatus for thoroughly equably dyeing yarn in the form of a large yarn package
US3388547A (en) * 1964-08-18 1968-06-18 Toyo Boseki Method for producing wool-like synthetic yarn
US3425110A (en) * 1967-07-20 1969-02-04 Logan Inc Jonathan Method of stabilizing bulked continuous filament thermoplastic yarn

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962857A (en) * 1960-12-06 Yarn and method of making same
US1560575A (en) * 1923-12-01 1925-11-10 Anilin Fabrikation Ag Apparatus for treating artificial threads wound on bobbins
US1815027A (en) * 1928-06-08 1931-07-14 Murch Frank Gilman Textile material and process of making
FR835050A (fr) * 1937-07-19 1938-12-09 Obermaier & Cie Broche pour le traitement par voie humide des gâteaux à filer de soie artificielle ou de bobines
US2863208A (en) * 1953-12-29 1958-12-09 Owens Corning Fiberglass Corp Method for packaging a continuous strand
US2936508A (en) * 1957-02-16 1960-05-17 Buddecke Heinrich Yarn packaging apparatus
US3289440A (en) * 1961-11-18 1966-12-06 Buddecke Heinrich Apparatus for thoroughly equably dyeing yarn in the form of a large yarn package
US3234627A (en) * 1962-07-31 1966-02-15 Bancroft & Sons Co J Dye package
US3388547A (en) * 1964-08-18 1968-06-18 Toyo Boseki Method for producing wool-like synthetic yarn
US3425110A (en) * 1967-07-20 1969-02-04 Logan Inc Jonathan Method of stabilizing bulked continuous filament thermoplastic yarn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081888A (en) * 1976-03-26 1978-04-04 Toray Industries, Inc. Apparatus for producing compact yarn package
CN1301349C (zh) * 2002-08-12 2007-02-21 三菱丽阳株式会社 丙烯腈系纤维的热处理方法

Also Published As

Publication number Publication date
GB1362551A (en) 1974-08-07
DE2130667A1 (de) 1971-12-30
JPS5115131B1 (de) 1976-05-14
ES418828A1 (es) 1976-04-01
ES392486A1 (es) 1974-07-01
LU63385A1 (de) 1972-03-22
NL7108355A (de) 1971-12-24
CA939131A (en) 1974-01-01
DE2130667B2 (de) 1974-07-25
FR2096420A1 (de) 1972-02-18
BE768863A (fr) 1971-11-03

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