US3452131A - Process for stretching filaments - Google Patents

Process for stretching filaments Download PDF

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Publication number
US3452131A
US3452131A US649257A US3452131DA US3452131A US 3452131 A US3452131 A US 3452131A US 649257 A US649257 A US 649257A US 3452131D A US3452131D A US 3452131DA US 3452131 A US3452131 A US 3452131A
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US
United States
Prior art keywords
stretching filaments
yarn
filaments
stretching
yam
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
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US649257A
Inventor
James Divine Geerdes
William Lewis Kuechler
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EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
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Publication of US3452131A publication Critical patent/US3452131A/en
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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
    • 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
    • D02J1/228—Stretching in two or more steps, with or without intermediate steps
    • 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
    • D02J1/222—Stretching in a gaseous atmosphere or in a fluid bed
    • 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
    • D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins

Definitions

  • a process including the coupled steps of Spinning lamentary yarn from a nylon melt at Spinning Speeds in excess of S00 yards/1T1inute, quenching the Spun yarn and draWing the quenched yarll t0 pfoduce an orientation coreSp0nding to a total draw rati0 0f at leaSt 0ne and a half and less than four between Hrst stage feed and draw rolls and further drawing the yarn in a Separate bllt coupled second Stage, the improvement of Which comprises substantially 10calizing the iifst-Stage draw p0int in Spaced relationship t0 the iirst-Stage feed and draw rolls by passing said yarn through an enc10sure and, in said enc10sure, jetting a heated gaseous nuid thereon, ffom one Side thereof the timeteInperature-pressure Telationship of

Description

.une 24, 969 D- GEERDES ETAL 3,452,13
- PROCESS FOR STRETCHING FILAMENTS Shee Filed june 27] 1967 4. A process including the coupled steps of Spinning lamentary yarn from a nylon melt at Spinning Speeds in excess of S00 yards/1T1inute, quenching the Spun yarn and draWing the quenched yarll t0 pfoduce an orientation coreSp0nding to a total draw rati0 0f at leaSt 0ne and a half and less than four between Hrst stage feed and draw rolls and further drawing the yarn in a Separate bllt coupled second Stage, the improvement of Which comprises substantially 10calizing the iifst-Stage draw p0int in Spaced relationship t0 the iirst-Stage feed and draw rolls by passing said yarn through an enc10sure and, in said enc10sure, jetting a heated gaseous nuid thereon, ffom one Side thereof the timeteInperature-pressure Telationship of exposure t0 Said jetting iuid being such as to raise the yam to a temperature Which is at least 50% of T and to reduce the drawing tension t0 no n0re than about 80% Of the ten- Sion on the yam in the absence of Said uid, said yam 1/19Z oberly 13415 2/1967 1 itzl 26078 FOREIGN PATENTS 78,38 10/196 Great Britain.
US649257A 1967-06-27 1967-06-27 Process for stretching filaments Expired - Lifetime US3452131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64925767A 1967-06-27 1967-06-27

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US3452131A true US3452131A (en) 1969-06-24

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US649257A Expired - Lifetime US3452131A (en) 1967-06-27 1967-06-27 Process for stretching filaments

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748844A (en) * 1971-08-04 1973-07-31 Du Pont Polyester yarn
DE3026520A1 (en) * 1980-07-12 1982-02-11 Davy International Ag, 6000 Frankfurt METHOD AND DEVICE FOR THE PRODUCTION OF HIGH-STRENGTH TECHNICAL YARNS BY SPINNING DRAWERS
DE3026451A1 (en) * 1980-07-12 1982-02-11 Davy International Ag, 6000 Frankfurt METHOD FOR THE PRODUCTION OF HIGH-STRENGTH TECHNICAL YARNS BY SPINNING DISTANCES AND YARNS PRODUCED BY THE METHOD, IN PARTICULAR FROM POLYAMIDE AND POLYESTER THREADS
US4583357A (en) * 1983-11-21 1986-04-22 Monsanto Company Partially oriented nylon yarn and process
US4646514A (en) * 1983-04-25 1987-03-03 Monsanto Company Partially oriented nylon yarn and process
USRE33059E (en) * 1983-11-21 1989-09-19 Monsanto Company Partially oriented nylon yarn and process
EP0459827A1 (en) * 1990-06-01 1991-12-04 E.I. Du Pont De Nemours And Company Method for deregistering crimped multifilament tow and product thereof
WO1992014875A1 (en) * 1991-02-22 1992-09-03 Heinz Reinbold Process for the production of drawn and set monofilaments
US5240667A (en) * 1991-11-13 1993-08-31 E. I. Du Pont De Nemours And Company Process of making high strength, low shrinkage polyamide yarn
US5259098A (en) * 1992-03-12 1993-11-09 E. I. Du Pont De Nemours And Company Steam-drawing process for yarns
US5262099A (en) * 1992-04-01 1993-11-16 E. I. Du Pont De Nemours And Company Process of making high tenacity polyamide monofilaments
US5284612A (en) * 1992-11-23 1994-02-08 E. I. Du Pont De Nemours And Company Steam draw-jet process for making partially-oriented polyamide yarns

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584043A (en) * 1945-06-20 1952-01-29 American Viscose Corp Method and apparatus for processing filamentary materials
GB758398A (en) * 1954-05-07 1956-10-03 Ici Ltd Drawing filaments, films and like articles
US3303169A (en) * 1962-01-18 1967-02-07 Du Pont High-modulus, high-tenacity, lowshrinkage polyamide yarn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584043A (en) * 1945-06-20 1952-01-29 American Viscose Corp Method and apparatus for processing filamentary materials
GB758398A (en) * 1954-05-07 1956-10-03 Ici Ltd Drawing filaments, films and like articles
US3303169A (en) * 1962-01-18 1967-02-07 Du Pont High-modulus, high-tenacity, lowshrinkage polyamide yarn

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748844A (en) * 1971-08-04 1973-07-31 Du Pont Polyester yarn
DE3026520A1 (en) * 1980-07-12 1982-02-11 Davy International Ag, 6000 Frankfurt METHOD AND DEVICE FOR THE PRODUCTION OF HIGH-STRENGTH TECHNICAL YARNS BY SPINNING DRAWERS
DE3026451A1 (en) * 1980-07-12 1982-02-11 Davy International Ag, 6000 Frankfurt METHOD FOR THE PRODUCTION OF HIGH-STRENGTH TECHNICAL YARNS BY SPINNING DISTANCES AND YARNS PRODUCED BY THE METHOD, IN PARTICULAR FROM POLYAMIDE AND POLYESTER THREADS
US4646514A (en) * 1983-04-25 1987-03-03 Monsanto Company Partially oriented nylon yarn and process
US4583357A (en) * 1983-11-21 1986-04-22 Monsanto Company Partially oriented nylon yarn and process
USRE33059E (en) * 1983-11-21 1989-09-19 Monsanto Company Partially oriented nylon yarn and process
EP0459827A1 (en) * 1990-06-01 1991-12-04 E.I. Du Pont De Nemours And Company Method for deregistering crimped multifilament tow and product thereof
WO1992014875A1 (en) * 1991-02-22 1992-09-03 Heinz Reinbold Process for the production of drawn and set monofilaments
US5240667A (en) * 1991-11-13 1993-08-31 E. I. Du Pont De Nemours And Company Process of making high strength, low shrinkage polyamide yarn
US5259098A (en) * 1992-03-12 1993-11-09 E. I. Du Pont De Nemours And Company Steam-drawing process for yarns
US5262099A (en) * 1992-04-01 1993-11-16 E. I. Du Pont De Nemours And Company Process of making high tenacity polyamide monofilaments
US5683808A (en) * 1992-04-01 1997-11-04 E. I. Du Pont De Nemours And Company High Tenacity polyamide monofilaments
US5284612A (en) * 1992-11-23 1994-02-08 E. I. Du Pont De Nemours And Company Steam draw-jet process for making partially-oriented polyamide yarns

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