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US3177556A - Drawing and crimping of synthetic filaments and yarns - Google Patents

Drawing and crimping of synthetic filaments and yarns Download PDF

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Publication number
US3177556A
US3177556A US284582A US28458263A US3177556A US 3177556 A US3177556 A US 3177556A US 284582 A US284582 A US 284582A US 28458263 A US28458263 A US 28458263A US 3177556 A US3177556 A US 3177556A
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US
United States
Prior art keywords
yarn
yarns
rolls
filaments
rate
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
US284582A
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English (en)
Inventor
Victor B Van Blerk
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.)
British Nylon Spinners Ltd
Original Assignee
British Nylon Spinners Ltd
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 British Nylon Spinners Ltd filed Critical British Nylon Spinners Ltd
Application granted granted Critical
Publication of US3177556A publication Critical patent/US3177556A/en
Anticipated expiration legal-status Critical
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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
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/127—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including drawing or stretching on the same machine
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/229—Relaxing

Definitions

  • Synthetic filaments are melt-spun or solution-spun through orifices in a spinneret, and then normally they are wound-up on cylinders to provide supply packages for subsequent processing steps, such as that of drawing.
  • Drawing, or stretching, of synthetic filaments is carried out in order to increase their tenacity by reason of molecular orientation.
  • such drawing is carried out between two sets of rolls, the second set of which rotates at a peripheral speed several times (according to the desired draw ratio) that of the first set.
  • Heat may or may not be applied to the filaments between the sets of rolls, to assist in drawing and in localising the point of draw.
  • Synthetic filaments or yarns are also nowadays often submitted to a bulking treatment, as by edge-crimping, stulfer-box crimping, twist-crimping or air-turbulence bulking.
  • a bulking treatment as by edge-crimping, stulfer-box crimping, twist-crimping or air-turbulence bulking.
  • the filaments or yarns it is necessary for the filaments or yarns to be heated concurrently with the bulking treatment in order that the deforming effect shall be sufficiently pronounced and in order that some degree of permanence shall be imparted to the deformed state of the filaments or yarns.
  • a friction device such as a snubbing-pin
  • a friction device such as a snubbing-pin
  • the preferred stutter-box crimper for use in the process of the invention because of the simple, controlled nature of its arrangements for discharging the crimped filaments or yarns, is one which, besides the nip rolls, consists solely of a driven discharge wheel whose axis is at right angles to the axes of the nip rolls and whose periphery is presented closely into the nip of the nip rolls and on the discharge side thereof.
  • a stuffer-box as described in British patent specification No. 873,368, the rate of discharge of the crimped yarn is controllable in correlation with the rate of feed so that the frequency of crimp in the yarn can be selected and be maintained uniform.
  • nip rolls are, in effect, being employed as draw rolls, it is essential that their action on the filaments or yarns shall be uniform both as to their speed and as to the pressure they exert against one another.
  • pressure e.g. 30 pounds for 1040 denier multifilament nylon yarn, can be made adjustable in known manner. Although some slip between the rolls may occur, such will be acceptable if it occurs uniformly.
  • Drawing may take place according to the invention either whilst the filaments or yarns are being continuously forwarded from the spinning machine or as a separate operation from spinning.
  • FIGURE 1 is a perspective view of apparatus according to the embodiment.
  • FIGURE 2 is a diagrammatic sectional view of the stutter-box crimper of FIGURE 1.
  • undrawn multi-filament yarn 1 of e.g. polyhexamethylene adipamide is positively withdrawn by feed rolls 3 from a spinning cylinder package (not shown).
  • the yarn is led through a pigtail guide 5 positioned a few inches above the nip of the nip rolls 7, 9 of a stutter-box crimper of the above-mentioned preferred type.
  • the nip rolls of the crimper are of stainless steel and are 1 inch in diameter.
  • Nip rolls 7, 9 rotate at a peripheral speed several times that of feed rolls 3, depending upon the desired draw ratio.
  • 1040 denier/ 15 denier per filament yarns of polyhexamethylene adipamide, the filaments of which had a trilobal cross-section have successfully been drawn to a draw ratio of 4 and crimped at 500 feet per minute, such being the peripheral rate of the nip rolls.
  • 420 denier/6 denier per filament yarns of polyhexamethylene adipamide, again with trilobal cross-section filaments have been drawn to a draw ratio in excess of 4 and crimped at 250 feet per minute.
  • the yarns were suitable for use as the pile of tufted carpets; and in the latter case, the yarns were suitable for knitted underwear.
  • a process for drawing and bulking yarns of synthetic continuous filaments consisting of the steps of (a) forwarding an undrawn yarn of synthetic continuous filaments at a predetermined linear rate to the nip rolls of a stutter-box crimper;
  • a process for drawingi-and'biilkingiyarns of synthetic continuous filaments consistingof the steps of i (a) forwarding an ,undrawn yarn of synthetic continuous filaments at a, predetermined linear rate t0 the nip rolls of a stuffer-box crimper; V V I,
  • 11A process for drawing and bulking yarns of synthetic continuous filaments consisting of the steps of (a) forwarding an undrawn yarn of synthetici contlDllOuS filaments at a predetermined linear rate to the nip rolls of a stutter-box crimper;

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Ropes Or Cables (AREA)
US284582A 1962-06-26 1963-05-31 Drawing and crimping of synthetic filaments and yarns Expired - Lifetime US3177556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24423/62A GB961094A (en) 1962-06-26 1962-06-26 Improvements in or relating to the drawing and crimping of synthetic filaments and yarns

Publications (1)

Publication Number Publication Date
US3177556A true US3177556A (en) 1965-04-13

Family

ID=10211502

Family Applications (1)

Application Number Title Priority Date Filing Date
US284582A Expired - Lifetime US3177556A (en) 1962-06-26 1963-05-31 Drawing and crimping of synthetic filaments and yarns

Country Status (8)

Country Link
US (1) US3177556A (zh)
BE (1) BE634098A (zh)
CH (1) CH418514A (zh)
DE (1) DE1435351A1 (zh)
ES (1) ES289336A1 (zh)
GB (1) GB961094A (zh)
LU (1) LU43912A1 (zh)
NL (1) NL293986A (zh)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256134A (en) * 1963-10-09 1966-06-14 American Enka Corp Yarn treating process and product
US3295180A (en) * 1964-03-09 1967-01-03 Monsanto Co Apparatus for crimping tow
US3341914A (en) * 1964-07-22 1967-09-19 British Nylon Spinners Ltd Process for treating filamentary material in a fluid
US3376622A (en) * 1962-08-13 1968-04-09 Techniservice Corp Strand treatment
US3411192A (en) * 1966-12-12 1968-11-19 Techniservice Corp Strand treatment process and apparatus
US3425106A (en) * 1965-02-10 1969-02-04 Klinger Mfg Co Ltd Method and apparatus for crimping yarn
US3441988A (en) * 1965-09-29 1969-05-06 Bayer Ag Process and an apparatus for the production of crimped filaments
US3454998A (en) * 1966-03-08 1969-07-15 Klinger Mfg Co Ltd Yarn treating apparatus and method
US3462815A (en) * 1967-11-20 1969-08-26 Techniservice Corp Strand treatment
US3462814A (en) * 1967-10-26 1969-08-26 Techniservice Corp Strand treatment
US3473316A (en) * 1963-11-19 1969-10-21 British Nylon Spinners Ltd Bulked yarn
US3571869A (en) * 1968-09-21 1971-03-23 Elitex Zavody Textilniho Stuffing-box device for crimping filamentary material
US3753275A (en) * 1964-03-04 1973-08-21 R Stanley Draw-crimping textile film strands
US3798718A (en) * 1970-05-26 1974-03-26 Bancroft & Sons Co J Apparatus for stuffer-crimping yarn
US4016632A (en) * 1963-07-31 1977-04-12 Textured Yarn Co., Inc. Strand treatment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914810A (en) * 1957-07-16 1959-12-01 British Celanese Crimping of textile fibres
GB852579A (en) * 1957-03-26 1960-10-26 British Nylon Spinners Ltd Improvements in or relating to yarn and its manufacture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB852579A (en) * 1957-03-26 1960-10-26 British Nylon Spinners Ltd Improvements in or relating to yarn and its manufacture
US2914810A (en) * 1957-07-16 1959-12-01 British Celanese Crimping of textile fibres

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376622A (en) * 1962-08-13 1968-04-09 Techniservice Corp Strand treatment
US4016632A (en) * 1963-07-31 1977-04-12 Textured Yarn Co., Inc. Strand treatment
US3256134A (en) * 1963-10-09 1966-06-14 American Enka Corp Yarn treating process and product
US3473316A (en) * 1963-11-19 1969-10-21 British Nylon Spinners Ltd Bulked yarn
US3753275A (en) * 1964-03-04 1973-08-21 R Stanley Draw-crimping textile film strands
US3295180A (en) * 1964-03-09 1967-01-03 Monsanto Co Apparatus for crimping tow
US3341914A (en) * 1964-07-22 1967-09-19 British Nylon Spinners Ltd Process for treating filamentary material in a fluid
US3425106A (en) * 1965-02-10 1969-02-04 Klinger Mfg Co Ltd Method and apparatus for crimping yarn
US3441988A (en) * 1965-09-29 1969-05-06 Bayer Ag Process and an apparatus for the production of crimped filaments
US3454998A (en) * 1966-03-08 1969-07-15 Klinger Mfg Co Ltd Yarn treating apparatus and method
US3411192A (en) * 1966-12-12 1968-11-19 Techniservice Corp Strand treatment process and apparatus
US3462814A (en) * 1967-10-26 1969-08-26 Techniservice Corp Strand treatment
US3462815A (en) * 1967-11-20 1969-08-26 Techniservice Corp Strand treatment
US3571869A (en) * 1968-09-21 1971-03-23 Elitex Zavody Textilniho Stuffing-box device for crimping filamentary material
US3798718A (en) * 1970-05-26 1974-03-26 Bancroft & Sons Co J Apparatus for stuffer-crimping yarn

Also Published As

Publication number Publication date
GB961094A (en) 1964-06-17
ES289336A1 (es) 1964-04-01
LU43912A1 (zh) 1963-08-14
DE1435351A1 (de) 1969-10-09
CH418514A (de) 1966-08-15
BE634098A (zh)
NL293986A (zh)

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