GB1153682A - Tow Drawing Process for Synthetic Filaments - Google Patents

Tow Drawing Process for Synthetic Filaments

Info

Publication number
GB1153682A
GB1153682A GB4071766A GB4071766A GB1153682A GB 1153682 A GB1153682 A GB 1153682A GB 4071766 A GB4071766 A GB 4071766A GB 4071766 A GB4071766 A GB 4071766A GB 1153682 A GB1153682 A GB 1153682A
Authority
GB
United Kingdom
Prior art keywords
tow
dielectric
synthetic filaments
moisture
sept
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
GB4071766A
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
Priority to US48834165A priority Critical
Priority to US488628A priority patent/US3364294A/en
Application filed by Monsanto Co filed Critical Monsanto Co
Publication of GB1153682A publication Critical patent/GB1153682A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying 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
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224Selection or control of the temperature during stretching
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/46Molding using an electrical heat

Abstract

1,153,682. Tow drawing synthetic filaments MONSANTO CO. 12 Sept., 1966 [20 Sept., 1965 (2)], No. 40717/66. Heading B5B. In a process for uniformly orientating synthetic filaments in the form of heavy tows, the tow, 10, may be preheated to a temperature of 50-100‹ C. and moisturized to a moisture level of 3-30% by weight, by passing through a preconditioning chamber 14, from when it is withdrawn by a feed roll assembly 22, the rolls preferably being maintained near the temperature of the tow, and passed into a dielectric oven, 24, consisting of an electrode assembly enclosed within a housing 34, the interior surface of which is provided with a metallic sheathing, 38, where it is heated uniformly, before engaging a draw roll assembly 26, and thence through a suitable guide to other processing or a take up roll, 32. The dielectric field is characterized by a frequency of from 1-1200 megacycles per second and a voltage of 2000- 25,000 volts, and may be established so as to provide an increasing field intensity as the yarn moisture decreases during heating, such as by decreasing the distance between the electrodes at the draw roll end of the oven. To avoid arcing across the electrodes when the yarn contains a lot of moisture, the space surrounding the dielectric field may be swept with dry air or gas. Other moisturizing agents such as alcohols or glycols may be used. The treatment of polyester and polyamide filamentary materials is exemplified.
GB4071766A 1965-09-20 1966-09-12 Tow Drawing Process for Synthetic Filaments Expired GB1153682A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US48834165A true 1965-09-20 1965-09-20
US488628A US3364294A (en) 1965-09-20 1965-09-20 Filament orientation process

Publications (1)

Publication Number Publication Date
GB1153682A true GB1153682A (en) 1969-05-29

Family

ID=27049317

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4071766A Expired GB1153682A (en) 1965-09-20 1966-09-12 Tow Drawing Process for Synthetic Filaments

Country Status (8)

Country Link
US (1) US3364294A (en)
BE (1) BE687076A (en)
CH (1) CH457701A (en)
DE (1) DE1660484A1 (en)
GB (1) GB1153682A (en)
IL (1) IL26497A (en)
LU (1) LU51952A1 (en)
NL (1) NL6613269A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469054A (en) * 1967-03-15 1969-09-23 Bangor Punta Operations Inc Shielded dielectric heating apparatus
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
CA898902A (en) * 1969-06-30 1972-04-25 C. Clark James H.f. heating apparatus
US3619538A (en) * 1970-03-03 1971-11-09 Ppg Industries Inc Process and apparatus for high-frequency electrical drying of fibrous strand
US3731038A (en) * 1971-02-22 1973-05-01 Patents And Dev Ltd Zero-mode microwave applicator
US4027466A (en) * 1975-06-17 1977-06-07 Heberlein Maschinenfabrik Ag Process for continuously treating thermoplastic yarns
GB1551883A (en) * 1977-01-27 1979-09-05 Heathcoat & Co Ltd Production of textured multifilament synthetic yarn
DE3278134D1 (en) * 1981-12-24 1988-03-31 Nippon Telegraph & Telephone Process for the production of ultrahigh-modulus polymers
CA1252265A (en) * 1984-03-30 1989-04-11 Ian M. Ward Tubular materials
US6210622B1 (en) * 1999-07-19 2001-04-03 Arteva North America S.A.R.L. Process of making polymeric fibers
US20150047218A1 (en) 2013-08-14 2015-02-19 Whirlpool Corporation Appliance for drying articles
US9784499B2 (en) 2013-08-23 2017-10-10 Whirlpool Corporation Appliance for drying articles
US9410282B2 (en) 2013-10-02 2016-08-09 Whirlpool Corporation Method and apparatus for drying articles
US9645182B2 (en) 2013-10-16 2017-05-09 Whirlpool Corporation Method and apparatus for detecting an energized E-field
US9546817B2 (en) * 2013-12-09 2017-01-17 Whirlpool Corporation Method for drying articles
US9605899B2 (en) 2015-03-23 2017-03-28 Whirlpool Corporation Apparatus for drying articles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456384A (en) * 1946-06-04 1948-12-14 Du Pont Thermal-stretching apparatus for yarn
US2692875A (en) * 1949-06-17 1954-10-26 Allied Chem & Dye Corp Methacrylonitrile-acrylonitrile copolymers and fibers thereof
US3081485A (en) * 1958-11-20 1963-03-19 Steigerwald Karl Heinz Process and apparatus for treating synthetic plastic materials
US3032856A (en) * 1958-12-12 1962-05-08 Fleissner G M B H Fa Apparatus for treating yarn, thread, ribbons and the like elongated material capableof being stretched
US3205334A (en) * 1963-07-30 1965-09-07 Radio Frequency Company Inc Textile thread heating apparatus
US3263052A (en) * 1963-09-11 1966-07-26 Cryodry Corp Power distribution system for microwave process chambers

Also Published As

Publication number Publication date
NL6613269A (en) 1967-03-21
CH457701A (en) 1968-06-15
IL26497A (en) 1970-04-20
BE687076A (en) 1967-03-20
DE1660484A1 (en) 1971-03-18
LU51952A1 (en) 1967-03-13
US3364294A (en) 1968-01-16

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