GB1093422A - Process for the manufacture of polyamide filaments having a low tendency to shrink - Google Patents

Process for the manufacture of polyamide filaments having a low tendency to shrink

Info

Publication number
GB1093422A
GB1093422A GB3710/64A GB371064A GB1093422A GB 1093422 A GB1093422 A GB 1093422A GB 3710/64 A GB3710/64 A GB 3710/64A GB 371064 A GB371064 A GB 371064A GB 1093422 A GB1093422 A GB 1093422A
Authority
GB
United Kingdom
Prior art keywords
diameter
section
roller
greatest
filaments
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
Application number
GB3710/64A
Inventor
Hugo Specker
Dieter Mohrle
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.)
Viscosuisse SA
Original Assignee
Societe de la Viscose Suisse SA
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 Societe de la Viscose Suisse SA filed Critical Societe de la Viscose Suisse SA
Priority to GB3710/64A priority Critical patent/GB1093422A/en
Priority to CH1434364A priority patent/CH424071A/en
Priority to NL6415182A priority patent/NL6415182A/xx
Priority to US426608A priority patent/US3436450A/en
Priority to DE1965S0095099 priority patent/DE1660505A1/en
Priority to LU47859A priority patent/LU47859A1/xx
Priority to FR3482A priority patent/FR1422735A/en
Priority to BE658938D priority patent/BE658938A/xx
Publication of GB1093422A publication Critical patent/GB1093422A/en
Expired legal-status Critical Current

Links

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
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • 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
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

1,093,422. Stretching and relaxing polyamide filaments. SOCIETE DE LA VISCOSE SUISSE. Dec. 17, 1964 [Jan. 28, 1964], No. 3710/64. Heading B5B. [Also in Division F2] A roller comprises three coaxial sections the diameters of which successively decrease, the section of greatest diameter and part of the section of least diameter being provided with cooling means, and the intermediate section and part of the section of least diameter adjacent the section of intermediate diameter being provided with heating means such that the temperature of the surface of part of the section of least diameter can be kept higher than that of the surface of the section of intermediate diameter. It is preferred that the section of least diameter has a diameter from 10 to 15% less than the diameter of the section of greatest diameter and that the section of intermediate diameter has a diameter greater than the diameter of the section of least diameter by about one-third of the difference between the diameters of the sections of greatest and least diameter; the diameters may be 100 Œ 5 mm., 91 Œ 4 mm. and 87 Œ 4 mm. for the sections of greatest, intermediate and least diameter, respectively. Fig. 3 illustrates the roller with an associated feed roller 5. The roller 6B, which is attached to spindle 16 by thermal insulation 17, comprises an externally polished roller body 18 which carries on thermal insulation 21 a polished metal ring 22 which forms the section of largest diameter, which may be internally cooled by circulating air and which may additionally be provided with radial bores (not shown) to improve air circulation. A cavity 19 in the roller body may contain an electric heater 20 by which the section 23 of intermediate diameter and portion 24 of the section of least diameter adjacent thereto may be heated. Open end portion 25 of the section of least diameter is provided with radial cooling bores and internal cooling ribs 26. In an embodiment illustrated in Fig. 2 (not shown), the section of greatest diameter comprises a collar of plastics material secured to the roller body in place of the metal ring, the collar being resistant to wear and a poor conductor of heat. As illustrated in Fig. 1 (not shown), the roller may form the stretching roller in a stretchtwisting frame, yarn passing from a bobbin via a yarn guide, a supply device consisting of a pair of rollers, and a stretching pin, on to a draw-off unit consisting of a feed roller and the roller of the invention from which the yarn passes via a further yarn guide to be twisted by a traveller on a ring twisting spindle and finally to be reeled on a further bobbin. The roller may be used in modifying polyamide (for example polyhexamethylene adipamide or polycaprolactam) filaments to impart thereto a low and uniform tendency to shrink, the filaments being passed around the roller in order initially to be stretched and then to be relaxed. The filaments are passed first at a temperature of at most 110‹ C. round the section of greatest diameter, then round the section of intermediate diameter and a portion of the section of least diameter adjacent the section of intermediate diameter, and finally around the cooled portion of the section of least diameter, the temperature of the section of intermediate diameter being from 120‹ to 200‹ C., and the temperature of the portion of the section of least diameter adjacent the section of intermediate diameter being from 130‹ to 210‹ C. and at least 10‹ C. (preferably from 10‹ to 50‹ C.) higher than the temperature of the section of intermediate diameter. The filaments may move 2 to 4 times, once or twice, 3 to 8 times and 2 to 5 times round the section of largest diameter, the section of intermediate diameter, the portion of the section of least diameter adjacent the section of intermediate diameter and the cooled portion of the section of least diameter, respectively.
GB3710/64A 1964-01-28 1964-01-28 Process for the manufacture of polyamide filaments having a low tendency to shrink Expired GB1093422A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB3710/64A GB1093422A (en) 1964-01-28 1964-01-28 Process for the manufacture of polyamide filaments having a low tendency to shrink
CH1434364A CH424071A (en) 1964-01-28 1964-11-05 Method for relaxing polyamide threads
NL6415182A NL6415182A (en) 1964-01-28 1964-12-29
US426608A US3436450A (en) 1964-01-28 1965-01-19 Process for heat relaxing stretched polyamide filament
DE1965S0095099 DE1660505A1 (en) 1964-01-28 1965-01-21 Method for relaxing polyamide threads
LU47859A LU47859A1 (en) 1964-01-28 1965-01-27
FR3482A FR1422735A (en) 1964-01-28 1965-01-27 Method and apparatus for heat treatment of thermoplastic synthetic yarns
BE658938D BE658938A (en) 1964-01-28 1965-01-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3710/64A GB1093422A (en) 1964-01-28 1964-01-28 Process for the manufacture of polyamide filaments having a low tendency to shrink

Publications (1)

Publication Number Publication Date
GB1093422A true GB1093422A (en) 1967-12-06

Family

ID=9763498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3710/64A Expired GB1093422A (en) 1964-01-28 1964-01-28 Process for the manufacture of polyamide filaments having a low tendency to shrink

Country Status (8)

Country Link
US (1) US3436450A (en)
BE (1) BE658938A (en)
CH (1) CH424071A (en)
DE (1) DE1660505A1 (en)
FR (1) FR1422735A (en)
GB (1) GB1093422A (en)
LU (1) LU47859A1 (en)
NL (1) NL6415182A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042662A (en) * 1970-05-13 1977-08-16 Akzona Incorporated Continuous melt spinning and drawing of nylon 6 yarn, while reducing the liveliness of the yarn
US4075274A (en) * 1973-04-07 1978-02-21 Teijin Limited Method for drawing and heat-treating polyester yarns
DE2318887C3 (en) * 1973-04-14 1982-11-11 Akzo Gmbh, 5600 Wuppertal Process for the production of polyester threads by shrinking heat-drawn threads in two stages
US3914835A (en) * 1974-01-14 1975-10-28 Dow Badische Co Apparatus for drawing and crimping synthetic yarn
GB2101522B (en) * 1981-01-26 1984-05-31 Showa Denko Kk Producing high tenacity monofilaments
IT1157347B (en) * 1982-12-31 1987-02-11 Snia Fibre PROCEDURE FOR THE PREPARATION OF A POLYAMIDE FIBER SUITABLE FOR COTTON AND FIBER SPINNING SO OBTAINED
CH671243A5 (en) * 1986-08-18 1989-08-15 Mettler Soehne Maschf
CA2088458A1 (en) * 1992-01-30 1993-07-31 Cheng-Kung Liu Polyamide monofilament suture manufactured from higher order polyamide
US5279783A (en) * 1992-01-30 1994-01-18 United States Surgical Corporation Process for manufacture of polyamide monofilament suture
US5456696A (en) * 1993-07-20 1995-10-10 United States Surgical Corporation Monofilament suture and process for its manufacture
FR2857986B1 (en) * 2003-07-22 2005-09-02 Rieter Icbt ROTARY HEATING BUCKET FOR THERMOFIXATION OF TEXTILE YARN

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018608A (en) * 1957-05-08 1962-01-30 Glanzstoff Ag Process for the production of lowshrinkage polyethylene terephthalate threads
NL137688C (en) * 1959-07-17
US3221385A (en) * 1961-05-24 1965-12-07 Techniservice Corp Strand streatment

Also Published As

Publication number Publication date
NL6415182A (en) 1965-07-29
BE658938A (en) 1965-05-17
US3436450A (en) 1969-04-01
CH424071A (en) 1966-11-15
LU47859A1 (en) 1965-03-23
DE1660505A1 (en) 1972-03-23
FR1422735A (en) 1965-12-24

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