GB1077507A - Process for heat-setting fibres or films of polycarbonates - Google Patents

Process for heat-setting fibres or films of polycarbonates

Info

Publication number
GB1077507A
GB1077507A GB38594/64A GB3859464A GB1077507A GB 1077507 A GB1077507 A GB 1077507A GB 38594/64 A GB38594/64 A GB 38594/64A GB 3859464 A GB3859464 A GB 3859464A GB 1077507 A GB1077507 A GB 1077507A
Authority
GB
United Kingdom
Prior art keywords
temperature
heat
fibres
films
polycarbonate
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
GB38594/64A
Inventor
Bela Von Falkai
Alfred Reichle
Manfred Reichardt
Wolfgang Rellensmann
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1077507A publication Critical patent/GB1077507A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting
    • 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
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D01F6/64—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters from polycarbonates
    • 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
    • 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
    • D02J1/228—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
    • D02J1/229—Relaxing

Abstract

Polycarbonate fibres, fabrics and films &c. are heat-set at a temperature within \sB 2.5 DEG C of the temperature at which the tangent of the dielectric loss angle has its first subsidiary maximum. The fibres &c. may be heat-set at a temperature within \sB 1.5 DEG C of the specified temperature. In an example, a bundle of filaments of a polycarbonate based on 2:2-(4:4\sv-dihydroxydiphenyl)-propane is passed through a crossed roller drier maintained at 138 DEG C \sB 1.5 DEG C, the period of dwell in the drier being 5 minutes and the outlet speed of the bundle being 5% less than the inlet speed. The optimum temperature of 138 DEG C is found on the basis of tg d measurements at a frequency of 1 kilocycle per second of the material stretched at a stretch ratio of 4.2:1, the stretching dispersion region in the temperature range of 75 to 155 DEG C being found to have a maximum at 138 DEG C. In the other Example a fabric woven from the polycarbonate fibres is heat-set for 35 seconds on a tentering frame at a temperature maintained within \sB 1.5 DEG C of the optimum temperature, which in this case is 150 DEG C.
GB38594/64A 1963-09-25 1964-09-22 Process for heat-setting fibres or films of polycarbonates Expired GB1077507A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEF0040832 1963-09-25
DEF0040833 1963-09-25
DEF0040831 1963-09-25

Publications (1)

Publication Number Publication Date
GB1077507A true GB1077507A (en) 1967-08-02

Family

ID=27210324

Family Applications (3)

Application Number Title Priority Date Filing Date
GB38593/64A Expired GB1077506A (en) 1963-09-25 1964-09-22 Crimping of polycarbonate structures
GB38595/64A Expired GB1066187A (en) 1963-09-25 1964-09-22 Stretching polycarbonate filaments and films
GB38594/64A Expired GB1077507A (en) 1963-09-25 1964-09-22 Process for heat-setting fibres or films of polycarbonates

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB38593/64A Expired GB1077506A (en) 1963-09-25 1964-09-22 Crimping of polycarbonate structures
GB38595/64A Expired GB1066187A (en) 1963-09-25 1964-09-22 Stretching polycarbonate filaments and films

Country Status (4)

Country Link
US (1) US3329755A (en)
BE (3) BE653489A (en)
DE (2) DE1435459A1 (en)
GB (3) GB1077506A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835635A (en) * 1972-08-18 1974-09-17 H Myers Basting thread with reducing shrinkability and high solvent reactivity and method of producing the same
DE3341557A1 (en) * 1983-10-22 1985-05-02 Bayer Ag, 5090 Leverkusen FILLED POLYCARBONATE FILMS, THEIR PRODUCTION AND USE
CA2652371A1 (en) * 2006-05-18 2007-11-29 Marilyn Rayner Manufacturing method of a membrane and a membrane thereof, for emulsification

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556295A (en) * 1947-07-23 1951-06-12 Du Pont Process of drawing formed structures of synthetic linear polyesters
US2794700A (en) * 1954-07-01 1957-06-04 Du Pont Process of heat treating nylon filaments by passing them around a heated metal drum
US3022545A (en) * 1956-09-06 1962-02-27 British Celanese Process for crimping cellulose triacetate fibers
US2942325A (en) * 1957-05-14 1960-06-28 Du Pont Process of treating undrawn polyester yarns and filaments
BE597192A (en) * 1959-11-21
US3101245A (en) * 1960-08-18 1963-08-20 American Cyanamid Co Production of polyacrylonitrile fibers

Also Published As

Publication number Publication date
DE1303448C2 (en) 1974-07-11
BE653489A (en) 1965-01-18
DE1435459A1 (en) 1969-03-20
BE653491A (en) 1965-01-18
US3329755A (en) 1967-07-04
BE653490A (en) 1965-01-18
DE1303448B (en) 1973-12-13
GB1077506A (en) 1967-08-02
GB1066187A (en) 1967-04-19

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