US3047932A - Apparatus for intermittently edgecrimping yarn - Google Patents

Apparatus for intermittently edgecrimping yarn Download PDF

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Publication number
US3047932A
US3047932A US834517A US83451759A US3047932A US 3047932 A US3047932 A US 3047932A US 834517 A US834517 A US 834517A US 83451759 A US83451759 A US 83451759A US 3047932 A US3047932 A US 3047932A
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United States
Prior art keywords
yarn
edge
crimping
segments
intermittently
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US834517A
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English (en)
Inventor
Pittman Edgar Henry
Bolinger Edgar Dare
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Deering Milliken Research Corp
Milliken Research Corp
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Milliken Research Corp
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Publication date
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Priority to US834517A priority Critical patent/US3047932A/en
Priority to ES0260155A priority patent/ES260155A1/es
Priority to GB28016/60A priority patent/GB909362A/en
Priority to CH937960A priority patent/CH375097A/fr
Priority to BE594201A priority patent/BE594201A/fr
Priority to CH770961A priority patent/CH375479A/fr
Priority to US15356861 priority patent/US3152435A/en
Application granted granted Critical
Publication of US3047932A publication Critical patent/US3047932A/en
Anticipated expiration legal-status Critical
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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
    • D02G1/10—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using knife edges, e.g. heated knife edges, for edge crimping

Definitions

  • This invention relates to novel intermittently elasticized yarn products and to methods and apparatus for producing such yarns, and more particularly to novel intermittently elasticized and bulked edge crimped thermoplastic yarns and fabric made from such yarns and to novel methods and apparatus for producing such yarns.
  • a yarn having alternate elasticized or bulked incremental lengths or segments and substantially unelasticized incremental lengths or segments may be proucked from originally unelasticized continuous filament thermoplastic yarn in a continuous process by intermittently elasticizing the yarn during linear advance of the yarn past an elasticizing medium.
  • the apparatus for producing the novel intermittently elasticized and bulked yarn includes a yarn crimping device preferably in the form of a sharp edged blade over which the yarn is advanced through a relatively sharp angle, and a yarn removal member which is intermittently moved to remove the yarn from contact with the treating edge of the yarn crimping device.
  • the yarn removal member may preferably take the form of an oscillating or reciprocating arm having a yarn contact surface of substantially larger radius of curvature than the radius of curvature of the sharp edge of the edge crimping device, so as to effect substantially little or no elasticization of the yarn as it passes thereby while the yarn removal member has the yarn removed from the edge crimping device.
  • the apparatus includes a preheater in the form of a yarn contact heater element over which the yarn passes prior to passing over the sharp edge of the edge-crimping blade in order to heat the yarn up to a temperature between the second order and first order transition points for the particular yarn.
  • the blade of the edge crimping device is preferably considerably colder than the heated yarn passing thereover.
  • FIGURE 1 is a schematic View in perspective of an apparatus according to the present invention, the apparatus being shown in elasticizing position.
  • FIGURE 2 is a schematic illustration of a portion of the apparatus of FIGURE 1 showing the apparatus in nonelasticizing position.
  • FIGURES 3 and 4 are schematic illustrations in side and front elevation respectively of a modified embodirnent according to the invention, the deviw being shown in full line in the elasticizing position and in broken lines in the nonelasticizing position.
  • FIGURE 5 is a schematic illustration of a length of fully developed yarn according to the invention.
  • FIGURE 6 is a schematic plan or face view illustration of a section of a fabric constructed of yarn according to the invention.
  • FIGURE 1 a yarn Y of continuous filament thermoplastic material or a blend including'thermoplastic filaments, having any desired number of filaments, is fed from a suitable supply indicated at 11 through suitable guide means illustrated schematically at 13 and a tension regulating device generally indicated at M to an intermittent elasticizing arrangement, generally indicated at 15.
  • the elasticizing arrangement takes the form of a sharp edged razor blade 17, the sharp yarn treating edge 17a of which has a radius of curvature of approximately 0002-.003 (dependent upon the denier of the yarn), and preferably has any surface roughness removed therefrom.
  • the yarn is preheated through the medium of a suitable heater device which in the presently illustrated embodiment takes the form of an electrically heated strip 19 of metal over which the yarn runs substantially immediately prior to engagement with the sharp edge 17a of the edge-crimping blade.
  • the blade 17, heater strip 19, and the guides 13 and 21 for guiding the yarn to and from the heater strip and blade are arranged with respect to each other so as to form a sharp angular bend in the yarn as it proceeds over the edge of the blade, the yarn thus having both a small patent crimp and a relatively large permanent latent crimp formed therein by this passage over and from the blade or such other sharp-edged equivalent element.
  • the thus texturized yarn is fed along a desired path to a suitable takeup arrangement generally indicated at 23.
  • the latent crimp may be subsequently developed in any suitable manner either prior to or after formation of a fabric therefrom, as by hot moisture, hot air, or contact heater treatment, or by long standing exposure in a more or less relaxed state at normal room temperature or the like.
  • the yarn proceeds through the elasticizing device, it is periodically moved into and out of elasticizing position. To this end the yarn is moved away from and into contact with the sharp edge It'la of the blade through the medium of an arm 25 loosely pivotally mounted on a pivot pin or shaft 27 which is suitably supported in any desired manner on a suitable support member 29 at one side of the edge crimping blade 17.
  • a suitable support member 29 at one side of the edge crimping blade 17.
  • the illustrated embodiment includes a rotatable eccentric 31 in the form of a collar 33 secured on the drive shaft 34 of a motor (not shown) and having a short rod or pin 35 suitably secured thereto as by welding in an eccentric position.
  • the yarn produced according to this embodiment will have periodic non-random elasticized and unelasticized yarn segments, the relative lengths of the alternate segments being adjustable as by adjustably varying the position of the pivot axis of the shaft 27 and/ or the eccentric 31 to alter the ratio of yarn time on and olf the blade edge 17a.
  • the yarn engaging edge 25a of the yarn removal arm 25 has amuch larger radius of curvature (e.g. .030 .120 or more) than that of the sharp edge 17a of the crimping blade 17, in order that this yarn engaging edge Q3 surface 25a will effect considerably less and preferably substantially little or no edge crimping of the yarn.
  • the yarn is fed from a suitable supply source through an intermittent elasticizing arrangement 115 to a yarn takeup arrangement in a manner generally similar to the embodiment of FIGURE 1.
  • the yarn proceeds over the heater strip 119 and edge crimping blade 117 and is removed from the blade edge 117a intermittently through the intermittent oscillation of a wire arm 125 having a transversely bent portion 125a of relatively large cross sectional radius of curvature (e.g. for intermittently removing the yarn Y from the sharp edge crimping edge 11711 of the blade 117.
  • This yarn removal arm 125 may be oscillated back and forth in any suitable manner, the present embodiment illustrating the employment of a solenoid and return spring arrangement.
  • the armature 131a of the solenoid 131 is mechanically interconnected to a lever arm 128 secured on a pivot shaft 127 to which the yarn removal arm 125 is also secured, thus forming in effect a bell crank lever arrangement.
  • the lever arm 1223 and the yarn removal arm 12.5 are preferably adjustably secured to the pivot shaft 127 through the medium of set screw collars 129, 130 to which the respective arms are secured as by welding.
  • a return spring 137 is also connected in opposition to the solenoid, as between the lever arm 12.8 and a suitable fixed support 139. If desired a suitable stop or stops may be provided for limiting the movement of the lever arm, the active movement of the lever arm in the present embodiment being limited by the engagement of the armature with the ends of the solenoid casing.
  • the solenoid 131 may be intermittently actuated by any desired intermittent signal generator 141 yielding signals of a desired frequency and duration. While any desired signal generator may be employed for effecting electrical impulses to actuate the solenoid, we prefer in most cases that the signal generator 1141 give a more or less random signal output, although in some instances a particular pattern output may be highly desirable in order to give a specific fabric pattern effect.
  • FIGURE 5 A length of fully developed yarn produced according to the invention is schematically illustrated in FIGURE 5, and in FIGURE 6 there is shown a schematic plan or face view of a section of a fabric constructed of yarn according to the invention.
  • the fully developed yarn Y according to the invention has alternate incremental segments which are respectively elasticized and comparatively bulky or voluminous as indicated at 151 and comparatively much less bulky or voluminous as indicated by the substantially straight filament sections designated by the numeral 153.
  • the voluminous incremental segments are representative of the sections of the yarn which have been subjected to elasticizing and bulking by engagement with the sharp crimping edge surface 17a or 117a of the illustrative embodiments, whereas the comparatively straight less voluminous sections 153 represent the segments of yarn which have been held off the surface of the sharp edge crimping edge 17a or 117a by the action of the yarn removal member or 125 in the present embodiments.
  • ⁇ Nhile for illustrative purposes these alternate segments have been shown as substantially equal in length in FIGURE 5, it will be apparent from the teachings herein that one may readily vary the ratio of lengths of the elasticized and bulked incremental segments to the lengths of the substantially unelasticized and unbulked incremental segments.
  • the small section of fabric F generally illustrated in FIGURE 6 is shown merely for the purpose of illustrating schematically the overall effect to the eye of the surface of a fabric formed of a yarn according to the present invention.
  • the fabric section is illustrated as formed,'for example, of loosely woven yarn having yarn according to the present invention in the filling thereof, the yarn being developed either before or after formation of the fabric. It will be apparent that various different surface eifects will be obtained either before or after formation in the fabric, the development of the yarn after formation of the fabric having a tendency to draw-up or packer the fabric surface as a result of effective shrinkage of the overall length of the yarn, particularly in the areas of the elasticized and bulked segments as they lie in the fabric.
  • this crinkling effect may be minimized or substantially obviated by making a loosely woven or formed fabric, if such is desired.
  • the wavy intermittent lines 155 are intended to designate the segments of the yarn which are predominant to the eye from a viewing of the fabric surface, and thus may indicate either the substantially elasticized and bulked segments or unelasticized or unbulked segments, depending upon the ratio of length of the elasticized and bulked segments to the substantially unelasticized and unbulked segments.
  • intermittent yarn-crimping means and means for advancing yarns through said intermittent yarn-crimping means comprising an edge-crimping element having a crimping edge engageable by yarn passing thereby and means for intermittently rendering said element ineffective on yarn passing thereby including a member other than said edgecrimping element and movably engageable with yarn passing by said edge-crimping element, said member being movable along a path intersecting transversely the path of yarn passing by said element.
  • Intermittent yarn-crimping means and means for advancing yarn through said yarn-crimping means said intermittent yarn-crimping means comprising an edgecrimping element having a crimping edge engageable by yarn passing thereby and means for intermittently rendering said element ineifective on yarn passing thereby, including an arm mounted for angular movement, and means for intermittently moving said arm, said means for intermittently moving said arm being an electro-responsive device.
  • said electroresponsive device is a solenoid, said solenoid being operae tively connected in controlling connection to said movable member.
  • Apparatus according to claim 3 further comprising intermittent electrical signal generating means operatively connected in controlling relation to said electro-responsive device.
  • said movable yarn engaging member has a yarn engaging surface thereon, said edge-crimping element having a yarn-engaging-and-crimping surface, said surface on said movable member having a radius of curvature larger than the radius of curvature of said yarn-engaging-and-crimping surface of said edge-crimping element and imparting less crimp to yarn passing thereover than said yamengagingand-crimping surface of said edge-crimping element.
  • Apparatus according to claim 8 wherein said yarnengaging surface of said movable member imparts sub stantially no crimp to yarn when engaging therewith.
  • Intermittent yarn-crimping means means for advancing yarn through said intermittent yarn-crimping means, and heat-applying means for applying heat to said yarn as it passes through said intermittent-yarncrimping means, said intermittent-yarm-crimping means including a nonrotatable yarn-bending element cooler than the thus heated yarn passing therethrough to thereby eifect cooling and crystallization of the heated yarn in a crimp-stressed condition.
  • Apparatus for elasticizing thermoplastic yarn comprising a first yarn contacting member and a second yarn contacting member, means for selectively engaging either of said members with a yarn passing thereby, and guide means for guiding yarn in a sharp angular path over an edge surface of the instant selected one of said members.
  • edge surface of one of said members is an edge-crimping surface and said edge surface of the other of said members is substantially ineflective to produce an effective crimp in said yarn.
  • Apparatus according to claim 11 wherein said edge-surface of one of said members has a substantially smaller radius of curvature than said edge surface of said other member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
US834517A 1959-08-18 1959-08-18 Apparatus for intermittently edgecrimping yarn Expired - Lifetime US3047932A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US834517A US3047932A (en) 1959-08-18 1959-08-18 Apparatus for intermittently edgecrimping yarn
ES0260155A ES260155A1 (es) 1959-08-18 1960-08-04 Un aparato para dar elasticidad a hilos
GB28016/60A GB909362A (en) 1959-08-18 1960-08-12 Textile yarns and fabrics and edge-crimping apparatus and processes for producing them
CH937960A CH375097A (fr) 1959-08-18 1960-08-18 Procédé de fabrication d'un fil textile de fantaisie, et fil textile obtenu par ce procédé
BE594201A BE594201A (fr) 1959-08-18 1960-08-18 Nouveaux produits textiles et procédé pour leur fabrication
CH770961A CH375479A (fr) 1959-08-18 1960-08-18 Appareil pour crêper par intermittence un fil thermoplastique avançant continuellement
US15356861 US3152435A (en) 1959-08-18 1961-11-20 Intermittently edge crimped yarns and fabrics formed therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US834517A US3047932A (en) 1959-08-18 1959-08-18 Apparatus for intermittently edgecrimping yarn

Publications (1)

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US3047932A true US3047932A (en) 1962-08-07

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US834517A Expired - Lifetime US3047932A (en) 1959-08-18 1959-08-18 Apparatus for intermittently edgecrimping yarn

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US (1) US3047932A (fr)
BE (1) BE594201A (fr)
CH (2) CH375097A (fr)
ES (1) ES260155A1 (fr)
GB (1) GB909362A (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124926A (en) * 1964-03-17 Woodell
US3129485A (en) * 1961-06-30 1964-04-21 Bancroft & Sons Co J Production of novelty bulked yarn
US3137912A (en) * 1961-01-09 1964-06-23 Deering Milliken Res Corp Apparatus for producing intermittent edge-crimped yarn
US3194000A (en) * 1960-02-02 1965-07-13 Celanese Corp Apparatus and method for bulking yarn
US3284871A (en) * 1961-12-28 1966-11-15 Toyo Rayon Co Ltd Intermittently-crimped filament and the method for the production thereof
US3293723A (en) * 1962-05-14 1966-12-27 Deering Milliken Res Corp Method of making pile fabric
US3304593A (en) * 1965-01-21 1967-02-21 Burklund Lab Inc Yarn bulking method and apparatus
US3514824A (en) * 1967-04-17 1970-06-02 Ici Ltd A method of producing a coherent multifilament yarn
US3523345A (en) * 1967-12-18 1970-08-11 Phillips Petroleum Co Yarn texturing method
US4191010A (en) * 1977-07-01 1980-03-04 Institut Textile De France Process and device for producing fancy yarn
US4263368A (en) * 1974-07-15 1981-04-21 Toray Industries, Inc. Process for producing a potentially bulky yarn
US4382992A (en) * 1974-07-15 1983-05-10 Toray Industries, Inc. Potentially bulky yarn
US4446690A (en) * 1982-10-18 1984-05-08 Milliken Research Corporation Bar balloon control
US4449354A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation Disc type yarn tension control
US4449356A (en) * 1982-11-10 1984-05-22 Milliken Research Corporation Continuous A.C. tension control
US4449355A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation A.C.-D.C. Slotted type yarn tension control
US4454710A (en) * 1982-10-18 1984-06-19 Milliken Research Corporation Balloon control for yarn texturing machine
US4457129A (en) * 1982-10-18 1984-07-03 Milliken Research Corporation Slotted disc type yarn tension control
US4462557A (en) * 1982-10-18 1984-07-31 Milliken Research Corporation Spring biased electromagnetically controlled tension control
US4478036A (en) * 1983-02-22 1984-10-23 Milliken Research Corporation Method, apparatus and intermittently textured yarn
US4532760A (en) * 1984-02-21 1985-08-06 Milliken Research Corporation D. C. Yarn tension control

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB558297A (en) * 1941-06-27 1943-12-30 Ici Ltd Improvements in and relating to the production of crimped threads or filaments
US2668564A (en) * 1951-11-03 1954-02-09 R K Laros Silk Company Woven textile item and filament yarn
US2669001A (en) * 1949-09-29 1954-02-16 Collins & Sikman Corp Method and apparatus for treating yarns
US2757436A (en) * 1955-03-31 1956-08-07 Chicopee Mfg Corp Puffed fabrics
US2854728A (en) * 1955-03-18 1958-10-07 Bancroft & Sons Co J Crimping apparatus
US2875502A (en) * 1953-04-10 1959-03-03 Turbo Machine Co Apparatus for curling textile yarns
AT203619B (de) * 1957-07-11 1959-05-25 Heberlein & Co Ag Verfahren, um Mono- und Multifilamentgarn aus synthetischem, organischem Material abschnittsweise eine Verdrehungstendenz in entgegengesetzter Drehrichtung zu erteilen
US2921358A (en) * 1956-01-26 1960-01-19 Deering Milliken Res Corp Apparatus for producing elasticized thermoplastic yarns
US2943378A (en) * 1955-09-08 1960-07-05 Miller Gladys Davis High lift fabric for laminated lubricator wick

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB558297A (en) * 1941-06-27 1943-12-30 Ici Ltd Improvements in and relating to the production of crimped threads or filaments
US2669001A (en) * 1949-09-29 1954-02-16 Collins & Sikman Corp Method and apparatus for treating yarns
US2668564A (en) * 1951-11-03 1954-02-09 R K Laros Silk Company Woven textile item and filament yarn
US2875502A (en) * 1953-04-10 1959-03-03 Turbo Machine Co Apparatus for curling textile yarns
US2854728A (en) * 1955-03-18 1958-10-07 Bancroft & Sons Co J Crimping apparatus
US2757436A (en) * 1955-03-31 1956-08-07 Chicopee Mfg Corp Puffed fabrics
US2943378A (en) * 1955-09-08 1960-07-05 Miller Gladys Davis High lift fabric for laminated lubricator wick
US2921358A (en) * 1956-01-26 1960-01-19 Deering Milliken Res Corp Apparatus for producing elasticized thermoplastic yarns
AT203619B (de) * 1957-07-11 1959-05-25 Heberlein & Co Ag Verfahren, um Mono- und Multifilamentgarn aus synthetischem, organischem Material abschnittsweise eine Verdrehungstendenz in entgegengesetzter Drehrichtung zu erteilen

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124926A (en) * 1964-03-17 Woodell
US3194000A (en) * 1960-02-02 1965-07-13 Celanese Corp Apparatus and method for bulking yarn
US3137912A (en) * 1961-01-09 1964-06-23 Deering Milliken Res Corp Apparatus for producing intermittent edge-crimped yarn
US3129485A (en) * 1961-06-30 1964-04-21 Bancroft & Sons Co J Production of novelty bulked yarn
US3284871A (en) * 1961-12-28 1966-11-15 Toyo Rayon Co Ltd Intermittently-crimped filament and the method for the production thereof
US3293723A (en) * 1962-05-14 1966-12-27 Deering Milliken Res Corp Method of making pile fabric
US3304593A (en) * 1965-01-21 1967-02-21 Burklund Lab Inc Yarn bulking method and apparatus
US3514824A (en) * 1967-04-17 1970-06-02 Ici Ltd A method of producing a coherent multifilament yarn
US3523345A (en) * 1967-12-18 1970-08-11 Phillips Petroleum Co Yarn texturing method
US4263368A (en) * 1974-07-15 1981-04-21 Toray Industries, Inc. Process for producing a potentially bulky yarn
US4382992A (en) * 1974-07-15 1983-05-10 Toray Industries, Inc. Potentially bulky yarn
US4191010A (en) * 1977-07-01 1980-03-04 Institut Textile De France Process and device for producing fancy yarn
US4446690A (en) * 1982-10-18 1984-05-08 Milliken Research Corporation Bar balloon control
US4449354A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation Disc type yarn tension control
US4449355A (en) * 1982-10-18 1984-05-22 Milliken Research Corporation A.C.-D.C. Slotted type yarn tension control
US4454710A (en) * 1982-10-18 1984-06-19 Milliken Research Corporation Balloon control for yarn texturing machine
US4457129A (en) * 1982-10-18 1984-07-03 Milliken Research Corporation Slotted disc type yarn tension control
US4462557A (en) * 1982-10-18 1984-07-31 Milliken Research Corporation Spring biased electromagnetically controlled tension control
US4449356A (en) * 1982-11-10 1984-05-22 Milliken Research Corporation Continuous A.C. tension control
US4478036A (en) * 1983-02-22 1984-10-23 Milliken Research Corporation Method, apparatus and intermittently textured yarn
US4532760A (en) * 1984-02-21 1985-08-06 Milliken Research Corporation D. C. Yarn tension control

Also Published As

Publication number Publication date
BE594201A (fr) 1960-12-16
CH375479A (fr) 1964-02-29
CH375097A (fr) 1963-10-31
ES260155A1 (es) 1961-02-01
GB909362A (en) 1962-10-31

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