US3317978A - Stretch yarn texturing process and apparatus - Google Patents

Stretch yarn texturing process and apparatus Download PDF

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Publication number
US3317978A
US3317978A US392731A US39273164A US3317978A US 3317978 A US3317978 A US 3317978A US 392731 A US392731 A US 392731A US 39273164 A US39273164 A US 39273164A US 3317978 A US3317978 A US 3317978A
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US
United States
Prior art keywords
yarn
roll
draw
speed
heater
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
Application number
US392731A
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English (en)
Inventor
Euell K Mcintosh
Hiram B Taylor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monsanto Co
Original Assignee
Monsanto Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Monsanto Co filed Critical Monsanto Co
Priority to US392731A priority Critical patent/US3317978A/en
Priority to BE668285D priority patent/BE668285A/xx
Priority to GB35002/65A priority patent/GB1064057A/en
Priority to IL24195A priority patent/IL24195A/xx
Priority to NL6511001A priority patent/NL6511001A/xx
Priority to CH1199165A priority patent/CH446604A/fr
Priority to SE11241/65A priority patent/SE318965B/xx
Application granted granted Critical
Publication of US3317978A publication Critical patent/US3317978A/en
Priority to JP46051145A priority patent/JPS491253B1/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D02G1/18—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by combining fibres, filaments, or yarns, having different shrinkage characteristics
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • 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
    • D02G1/004—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by heating fibres, filaments, yarns or threads so as to create a temperature gradient across their diameter, thereby imparting them latent asymmetrical shrinkage properties

Definitions

  • This invention relates to texturing of continuous thermoplastic filaments and yarns and more particularly relates to a novel yarn texturing process and apparatus for yielding thermally textured yarns bearing high potential bulk and stretch.
  • the process and apparatus have particular application to thermoplastic yarns of linear polymer structure such as nylon, polyester and the like.
  • textured yarns having dynamic springiness and liveliness.
  • Yarns are textured by imparting a crimp, curl, coil, loop or other irregular configuration thereto.
  • Fabrics and materials made from textured yarn have .appealing properties of comfort, support, hand, cover, loft, elasticity, elongation and recovery.
  • Such textured yarns are sometimes referred to as stretch yarns because of their dimensional extensibility and recovery power and are the foundation of versatile stretch fabrics, garments, hosiery, and materials.
  • Another object is to provide a high-speed method and simple apparatus for producing a drawtisted and potentially textured yarn in one unified operation.
  • Another object is to provide texturing apparatus and process adapted to provide a potentially textured yarn without substantially changing its cross-sectional shape or its surface configuration.
  • the method and apparatus of the invention comprises, in brief, leading an undrawn thermoplastic yarn from a suitable source thereof to a yarn advancing means.
  • the yarn is forwarded from the advancing means driven at one rate of speed to a draw and texturing means driven at a faster rate of speed for attenuating the yarn therebetween and forwarding the yarn therefrom.
  • the yarn under a drawing tension while in the draw and texturing means, is heated at one side thereof to an elevated temperature below the melting point of the yarn to cause orientation to take place and is immediately sequentially cooled at its opposite side whereby a differential cross-sectional thermal gradient is imparted to the yarn.
  • the textured yarn is collected on a take-up mean-s. Preferably, a slight twist is applied to the textured yarn before collection.
  • the potentially textured yarn when later subjected to a heat or steam treatment shrinks and bulks in reversible, tight, continuous helices and provides a springy, stretchable yarn.
  • FIGURE 1 is a perspective view schematically showing the apparatus and method of the invention
  • FIGURE 2 is a plan view looking in the direction of 22 of FIG. 1;
  • FIGURE 4 is a perspective view showing a modified arrangement of the draw and texturing assembly of the invention.
  • the novel texturing apparatus comprises a supply source of undrawn thermoplastic yarn such as nylon packaged on a bobbin 1, a nip roll assembly, a draw and texture assembly, a twist and take-up device, and a plurality of guide members positioned where needed to guide the yarn to the various components.
  • the nip roll assembly for advancing the yarn delivered thereto from bobbin 1 includes a pair of engaging feed rolls 2 and 3. Roll 2 is positively driven at a preselected rate of speed and roll 3 is an engaging idler roll.
  • the draw and texture assembly comprises a draw roll 5 driven at .a higher peripheral rate of speed than feed roll 2 and a separator roll 6 positioned near the draw roll 5.
  • separator roll 6 is rotatably and slightly angularly mounted in relation to roll 5 to maintain separation of yarn wraps.
  • a heater roll 7, which may be provided with a matte finish surface, is mounted in peripheral surface engagement with draw roll 5 and is driven by the latter.
  • Heater roll 7 has a shallow circumferential groove 8 that defines a slot 9 formed between roll 5 and the heater roll.
  • the width of the face of heater roll 7 can be smaller than the width of draw roll 5, and heater roll 5 is positioned at one side thereof.
  • the twist and take-up device includes a bobbin 12 mounted on a spindle driven by belt drive means '13.
  • a reciprocating traverse ring 14 having a traveler 15 mounted to orbit freely thereon surrounds bobbin 12 and is adapted to move back and forth axially of bobbin 12.
  • Heater roll 7 may be heated by electrical means, as shown, or by other suitable means and draw roll5 may be cooled by other than the air means 10 shown.
  • the yarn is laced within the illustrated apparatus of the invention as follows.
  • a yarn end from bobbin 1 is passed around a snubbing guide 16, is forwarded between the nip of feed rolls 2 and 3, is led through a pigtail guide 17, wound contactingly around draw pin 11, and is then forwarded to the draw and texture assembly.
  • rolls 2 and 5 are driven at slower and faster speeds, respectively.
  • Bobbin 12 is driven at a preselected speed for collecting the yarn and for applying a desired number of turns of twist thereto.
  • the yarn is stretched between the feed and draw rolls with the attentuation and orientation of the yarn being concentrated in the area of draw pin 11.
  • the yarn traveling under tension about draw roll 5 and separator roll 6 is heated to a transition temperature at its one side as it travels in substantially the same direction as and over the rotating groove surface of the heater roll 7 and is immediately, sequentially cooled opposite the heated side thereof when contact is made with the cool surface of draw roll 5 traveling in the same direction.
  • transition temperature as used herein covers a temperature range below the melting point of the yarn in which the yarn retains its extension.
  • the transition temperature is in the range of from about 160 C. to 250 C.
  • the speed of travel of the yarn and the peripheral speed of the surfaces of the heater roll 7 and the draw roll 5 be comparable to minimize and eliminate dragging the yarn or frictionally sliding the yarn across heater roll 7.
  • comparable speeds are employed there is less chance of the yarn being roughened, flattened, scorched, or burred when passing over the surface of groove 8 of heater roll 7.
  • heater roll 7 may be driven independently from draw roll 5 with similar results being achieved.
  • the heater roll 7 can be spaced sufficiently from the draw roll 5 to provide a clearance for passing a yarn therebetween without a nip being taken on the yarn.
  • Apparatus for drawing and texturing undrawn thermoplastic yarn comprising,
  • a draw roll assembly comprising,
  • a heater roll having a heated surface driven in an opposite direction from and in close spaced peripheral adjacency to said draw roll providing a clearance therebetween of a size approximating the dimension of a yarn normally traveling therethrough to prevent a nip being exerted on the yarn
  • said separator roll being positioned in relation to said heated surface such that a yarn, traveling from said separator roll into contact with said draw roll via said clearance, contacts at one side thereof the periphery of said heated surface substantially immediately prior to contact of the opposite side thereof with said draw roll.
  • Apparatus for drawing and texturing undrawn thermoplastic yarn as claimed in claim 1 further comprising means for positively cooling the peripheral surface I of said draw roll.
  • thermoplastic yarn comprising,
  • a draw roll assembly comprising,
  • a cooled draw roll driven in one direction for forwarding the yarn delivered thereto from said feed roll means at a faster speed than said one speed
  • said separator roll being positioned in relation to said heater roll such that a yarn, traveling from said separator roll into contact with said draw roll via said clearance, contacts at one side thereof the periphery of said heater roll substantially immediately prior to contact of the opposite side thereof with said draw roll.
  • thermoplastic undrawn yarn comprising,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US392731A 1964-08-28 1964-08-28 Stretch yarn texturing process and apparatus Expired - Lifetime US3317978A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US392731A US3317978A (en) 1964-08-28 1964-08-28 Stretch yarn texturing process and apparatus
BE668285D BE668285A (fr) 1964-08-28 1965-08-13
GB35002/65A GB1064057A (en) 1964-08-28 1965-08-16 Yarn texturing process and apparatus
IL24195A IL24195A (en) 1964-08-28 1965-08-18 Stretch yarn texturing process and apparatus
NL6511001A NL6511001A (fr) 1964-08-28 1965-08-23
CH1199165A CH446604A (fr) 1964-08-28 1965-08-26 Procédé textile continu pour la production d'un fil élastique et appareil pour sa mise en oeuvre
SE11241/65A SE318965B (fr) 1964-08-28 1965-08-27
JP46051145A JPS491253B1 (fr) 1964-08-28 1971-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US392731A US3317978A (en) 1964-08-28 1964-08-28 Stretch yarn texturing process and apparatus

Publications (1)

Publication Number Publication Date
US3317978A true US3317978A (en) 1967-05-09

Family

ID=23551793

Family Applications (1)

Application Number Title Priority Date Filing Date
US392731A Expired - Lifetime US3317978A (en) 1964-08-28 1964-08-28 Stretch yarn texturing process and apparatus

Country Status (8)

Country Link
US (1) US3317978A (fr)
JP (1) JPS491253B1 (fr)
BE (1) BE668285A (fr)
CH (1) CH446604A (fr)
GB (1) GB1064057A (fr)
IL (1) IL24195A (fr)
NL (1) NL6511001A (fr)
SE (1) SE318965B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529045A (en) * 1964-10-30 1970-09-15 Spunize Co Of America Inc Method for controlling roll diameter
US3653198A (en) * 1967-05-10 1972-04-04 Stevens & Co Inc J P Method for manufacturing a plied yarn
US3663352A (en) * 1968-11-01 1972-05-16 Monsanto Co Helically crimped continuous filament yarn
US3816992A (en) * 1971-12-22 1974-06-18 Du Pont Crimped polyester filament yarn and process for making same
US3861133A (en) * 1971-12-22 1975-01-21 Du Pont Production of highly crimped polyester yarn
US3905077A (en) * 1972-08-18 1975-09-16 Du Pont Process for crimping polyester filament yarn
US4035879A (en) * 1974-09-27 1977-07-19 Barmag Barmer Maschinenfabrik Aktiengesellschaft Apparatus for producing texturized yarns
US4050892A (en) * 1973-09-13 1977-09-27 Martin Processing Co., Inc. Coloring polyester materials with acid dyes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708813A (en) * 1948-06-01 1955-05-24 Saint Gobain Method of and apparatus for producing glass fibers
CA624011A (en) * 1961-07-18 Starkie David Methods of making stretch yarns
US3113366A (en) * 1960-12-12 1963-12-10 Monsanto Chemicals Apparatus for texturizing filaments
US3154835A (en) * 1962-04-10 1964-11-03 Monsanto Co Apparatus and method for yarn texturizing
US3226792A (en) * 1957-04-16 1966-01-04 English Rose Ltd Method and apparatus for crimping yarn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA624011A (en) * 1961-07-18 Starkie David Methods of making stretch yarns
US2708813A (en) * 1948-06-01 1955-05-24 Saint Gobain Method of and apparatus for producing glass fibers
US3226792A (en) * 1957-04-16 1966-01-04 English Rose Ltd Method and apparatus for crimping yarn
US3113366A (en) * 1960-12-12 1963-12-10 Monsanto Chemicals Apparatus for texturizing filaments
US3154835A (en) * 1962-04-10 1964-11-03 Monsanto Co Apparatus and method for yarn texturizing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529045A (en) * 1964-10-30 1970-09-15 Spunize Co Of America Inc Method for controlling roll diameter
US3653198A (en) * 1967-05-10 1972-04-04 Stevens & Co Inc J P Method for manufacturing a plied yarn
US3663352A (en) * 1968-11-01 1972-05-16 Monsanto Co Helically crimped continuous filament yarn
US3816992A (en) * 1971-12-22 1974-06-18 Du Pont Crimped polyester filament yarn and process for making same
US3861133A (en) * 1971-12-22 1975-01-21 Du Pont Production of highly crimped polyester yarn
US3905077A (en) * 1972-08-18 1975-09-16 Du Pont Process for crimping polyester filament yarn
US4050892A (en) * 1973-09-13 1977-09-27 Martin Processing Co., Inc. Coloring polyester materials with acid dyes
US4035879A (en) * 1974-09-27 1977-07-19 Barmag Barmer Maschinenfabrik Aktiengesellschaft Apparatus for producing texturized yarns

Also Published As

Publication number Publication date
CH446604A (fr) 1967-11-15
SE318965B (fr) 1969-12-22
GB1064057A (en) 1967-04-05
NL6511001A (fr) 1966-03-01
JPS491253B1 (fr) 1974-01-12
IL24195A (en) 1969-05-28
BE668285A (fr) 1966-02-14

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