• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1375151 Stretching polyester filaments BARMAG BARMER MASCHINENFABRIK AG 1 Feb 1973 [1 Feb 1972] 4997/73 Heading B5B Polyester filaments are melt-spun and given a preliminary draw by taking them off at a rate in excess of 3000 m./minute, cooled, drawn with a draw ratio of from 1 : 1À8 to 1 : 1À3 and then packaged. During the second drawing stage the filaments are exposed to heat from only one heating unit. Preferably the second drawing step is performed in an atmosphere of steam. The process may be continuous or may be interrupted after the cooling step.
    公开号:SU985162A1
    申请号:SU731876700
    申请日:1973-02-01
    公开日:1982-12-30
    发明作者:Шипперс Хайнц
    申请人:Бармаг Бармер Машиненфабрик Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) METHOD FOR OBTAINING POLYESTER FIBERS
    This invention relates to the manufacture of chemical fibers used in the textile industry.
    A known method of producing polyester fibers in which filaments are formed from a melt of polymers, cooled, pre-drawn, wound, and then subjected to additional drawing with a multiplicity of 1.2-2.0.
    However, the known method does not significantly improve the performance of the process while ensuring the high quality of the finished material.
    The purpose of the invention is to increase the productivity of the process while ensuring the high quality of the finished material.
    This goal is achieved in that according to the method of producing polyester fibers, in which filaments are melted from polymers, they are cooled, pre-stretched, wound, subjected to additional stretching with a factor of 1.22, 0, preliminary stretching is carried out at a speed of 37006000 m / min
    Additionally, additional stretching is carried out before winding.
    and the threads are wound and then subjected to additional stretching and final winding.
    The drawing shows the installation scheme implementing the method.
    The installation contains a spinning shaft 1, exhaust device 2, thread guide 3, transporting unit 4, folding device 5,
    10 cup 6 for laying the finished material, 7 fibers, drive 8.
    Pre-stretched yarns 9 with a speed of V 3000 m / min go out of spinning shaft 1, and from the stretch apparatus 2 go out additionally stretched strands 10, a bundle consisting of three or more strands 11 goes to the transport unit. .
    Example 1 Polyethylene terephthalate is used to form polyester complex yarns, which melt in an extruder at a pressure of 150 bar, at -. than a melt has a viscosity of 4000 P.
    25 The polyester mass is squeezed out by four threads through ten spinnerets, the extrusion speed of the spinneret is 29.5 m / min. Each individual filament is initially cooled in a laminar transverse air flow, the flow velocity is chosen to be 0.4 m / s with an air flow rate of 800 ..
    Then the individual filaments are combined into 10 filaments in one thread and for further cooling they are passed through a shaft 3 m long, from which it is withdrawn at different speeds, from 3000 m / min to 6000 m / min with intermediate values of 3500, 4000, 4500, 5000 and 5500 m / min.
    The yarns thus obtained are subjected to stretching and each thread is wound several times on the first wafer of the exhaust apparatus and several times on the second wafer, which rotate at different speeds, the rotational speed of the second wafer is higher than the rotational speed of the first wafer. Between the fillets, the threads pass through a heating zone with a temperature of 210 C.
    When stretching, yarns with a title 100 letex are obtained which are wound onto a cross-spool at a speed exceeding the rotation speed of the second wafer by 1%. The quality of the yarns was determined by the degree of stretching, elongation at break, etc.
    Example 2 The conditions for obtaining the fibers according to Example 1 are taken with the change in straightening from 30 spinnerets per filament, the flow of cooling air is supplied at a speed of 0.5 m / s at a flow rate of 100, 30 filaments are combined in the filament, the temperature of the Magreva zone between the wafers, obtained after stretching yarn with titre 90 letex.
    . Example 3. The conditions for obtaining the fibers according to Example 1 are taken with the change in straightening from 32 spinnerets per filament, cooling air flow is supplied at a speed of 0.5 m / s at a flow rate of 1000 m / h, 32 filaments are combined in the filament, the temperature of the heating zone between the biscuits, after drawing, yarns with a title of 167 Letex are obtained.
    With a drawdown speed below 3700 m / min, the capacity in the stretch zone has narrow limits. Excessive pre-stretching speeds of more than 6000 m / min prevent the production of fibers with good quality characteristics.
    权利要求:
    Claims (3)
    [1]
    1. A method of producing polyester fibers, in which melt yarns are molded from polymers, is cooled,
    preliminary stretched, wound, subjected to additional stretching with a multiplicity of 1.2-2.0, characterized in that in order to increase the productivity of the process while ensuring the high quality of the finished material, preliminary stretching is carried out at a speed of 3700-6000 m / min.
    [2]
    2. The method according to claim 1, of which is additional
    The stretching is carried out before winding.
    [3]
    3. The method according to claim 1, characterized in that the threads are wound and then subjected to additional stretching and final winding.
    Sources of information taken into account during the examination 1. USSR patent on application
    No. 1829419/12, CLO 01 D 5/04, 1971.
    pg
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    同族专利:
    公开号 | 公开日
    NL7301435A|1973-08-03|
    GB1375151A|1974-11-27|
    DE2204535A1|1973-08-23|
    DE2204535B2|1976-06-24|
    CS173618B2|1977-02-28|
    JPS4882115A|1973-11-02|
    CH549647A|1974-05-31|
    IT976970B|1974-09-10|
    DD101706A1|1973-11-12|
    JPS5743653B2|1982-09-16|
    引用文献:
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    RU2534897C2|2010-05-07|2014-12-10|Ёрликон Текстиле Гмбх Унд Ко. Кг|Method and device for forming of several synthetic threads from melt, as well as for stretching and winding them|
    JPS528418B2|1973-12-13|1977-03-09|
    JPS50100308A|1974-01-09|1975-08-08|
    AR207251A1|1975-05-22|1976-09-22|Monsanto Co|PROCEDURE TO PRODUCE A YARN FROM A THERMOPLASTIC POLYAMIDE POLYMER FOR SPINNING IN THE MELTED STATE|
    US4101525A|1976-10-26|1978-07-18|Celanese Corporation|Polyester yarn of high strength possessing an unusually stable internal structure|
    DE2925006C2|1979-06-21|1983-06-30|Akzo Gmbh, 5600 Wuppertal|Process for the production of melt-spun and molecularly oriented drawn, crystalline filaments|
    DE3018373C2|1980-05-14|1983-11-17|Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen|Process for warping warp threads for weaving and knitting machines as well as warping plant for carrying out the process|
    DE3346677C2|1983-12-23|1991-05-16|Barmag Ag, 5630 Remscheid, De|
    DE3508955C2|1985-03-13|1987-05-14|Davy Mckee Ag, 6000 Frankfurt, De|
    DE3521479C1|1985-06-14|1987-01-02|Neckelmann Kaj Synt Fiber|Use of a yarn for the production of a deformable surface structure|
    RU2114941C1|1993-04-30|1998-07-10|Бармаг АГ|Method for thread stretching and device for its embodiment|
    JP5656503B2|2010-08-06|2015-01-21|Ｔｍｔマシナリー株式会社|Yarn heating device|
    CN102373525B|2010-08-06|2015-10-07|日本Tmt机械株式会社|Yarn heating apparatus|
    JP5645594B2|2010-10-21|2014-12-24|Ｔｍｔマシナリー株式会社|Yarn heating device|
    JP5977153B2|2012-11-22|2016-08-24|Ｔｍｔマシナリー株式会社|Spinning and winding equipment|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19722204535|DE2204535B2|1972-02-01|1972-02-01|MELT SPINNING AND STRETCHING PROCESSES FOR THE MANUFACTURE OF POLYESTER FIBERS|
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