• 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:
    A process for producing polyester fiber highly suitable for a raw yarn for a woven or knitted fabric, having a residual elongation of not higher than 60%, a Young's modulus of 60 to 100 g/d, a boiling water shrinkage of 4 to 10% and a dry heat shrinkage of 5 to 12%, the peak stress temperature in a dry heat shrinkage stress curve of said fiber being lower than 100 DEG C. The process comprises melt spinning a thermoplastic polyester through a spinneret into a filament and taking up the filament after solidifying the spun filamentary polymer, characterized in that the whole process from spinning through take-up is carried out without heating the filament, the filament is subjected to stretch treatment at a stretch ratio of not more than 20% after the solidification of the filament but before take-up, and take-up is carried out at a take-up speed of not less than 5,000 m/min.
    公开号:SU1600634A3
    申请号:SU813302845
    申请日:1981-06-26
    公开日:1990-10-15
    发明作者:Кен-Итиро-Ока；Минео Масатоси；Оно Терумити
    申请人:Торэй Индастриз, Инк (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the technology of producing synthetic fibers, in particular to the production of polyethylene terephthalate fibers with high consumer properties.
    The purpose of the invention is to increase the uniformity of color and the effectiveness of shrinkable fiber shrinkage.
    The physical properties of the fibers are determined by the following methods
    SRI.
    Residual elongation.
    The stress-strain curve is obtained at an impact rate of The pull force is 100 m / min and at a 200 M / J MH chart movement speed using a sample of the same length equal to 200 mm. The elongation at which the thread breaks out is defined as the residual elongation.
    Elastic modulus.
    The stress-strain curve was obtained at a speed of a tensile force of 200 m / min and at a chart movement speed of 1000 m / min using a sample of the same length equal to 200 mm, and the elastic modulus was calculated using the following formula:
    M (g / denier; (g D, D
    where A is the elongation at the point at which the stress-strain curve starts to round out, deviating from the straight line;
    B - load at this point; L - chart movement speed)
    D - weight number of fiber, denier. Shrinkage in hap sewed water (D).
    :
     cm
    31600634
    A sample of the thread does not fall out with the formation of a tenth of turns, on, the reel and the peripheral length of 1 m, apply a load of Ojl g / denier and measure the initial g, tsh5-that 1p. Sa. Then this thread is treated in boiling water for 15 minutes and dried in air. Then, dpc-: N of sample (1) is measured under the influence of loading σ, g / denier. Shrinkage
    water is calculated according to the following fork:
    (%)
    - and
    15
    thirty
    Thermal shrinkage during drying () The thread sample is wound to form ten turns on the reel, which has a 1 MJ peripheral loop and is measured at the initial thickness (D) under 0.1 g load, and then the thread sample is processed for 5 min in drying oven at. After this, the length of 1l j is measured with a load of 0.1 g / den. The thermal shrinkage is calculated using the following formula:
    d3 AliL.10Q (%),.
    The maximum stress temperature on the curve of heat shrinkage during drying is voltage.
    The thread sample is exposed to an initial load of, corresponding to 1/15 denier of the thread, in a thermal stress measuring device. This sample of a thread 20 cm long is looped so that the loop length is 10 cm. The temperature is increased at a rate of 150 ° C / min, producing a stress curve — thermal shrinkage during drying. The temperature, at which this curve reaches its maximum, is defined as the temperature of the maximum voltage.
    The half-width of the Raman spectrum band obtained with the help of a laser beam. I
    The measurement is carried out by
    in a way.
    (a) The filament is filled with paraffin and a sample is cut out with a thickness of about 10 µm in the direction perpendicular to the axis of the filament, with the formation of an incision of the sample,
    (b) determine some measuring points (usually 7 or 8 points)
    35
    40
    g
    five
    thirty
    j
    35
    40
    45
    50
    55
    in the radial direction of the cut sample
    (c) laser radiation of ionized argon is fixed at one measuring point
    (d) the scattered Raman spectrum is reproduced in a diagram with the formation of a picture of the Raman spectrum at 1618 and
    (e) register the half-width of the spectrum band at 1730,
    (f) the indicated operations (c) - (e) are repeated with respect to other measuring points
    (g) the difference between the maximum and minimum values of the measured half-length of the spectrum bands 1-1 is expressed as D
    Heterogeneity of the thread (U%). The uniformity of stapling is associated. with the uniformity of the yarn,%, since the non-uniformity of the degree of molecular orientation and the degree of crystallinity is caused in the direction of the fiber axis, where the uniformity of the yarn is poor. Since the dye is distributed in the amorphous region for dyeing the yarn, a change in the degree of crystallinity (i.e., the degree of non-crystallinity or the amount of non-crystallization) causes a change in the region in which the substrate is dispersed, resulting in uneven dyeing. Similarly, a change in the degree of molecular orientation causes a change in the density of molecules in the amorphous region, which causes a change in the dispersion of the dye. Since the internal configuration (such as molecular orientation and crystallinity) of the yarn is stable in the direction of the fiber axis, where the original yarn has high uniformity (i.e., low U%), the degree of dispersion of the dye becomes uniform along the yarn length, improving the uniformity of color.
    The change in the U% value was carried out using a commercially available Astaire plan under the following conditions:
    Speed pr ha, m / min25
    Twist, RPM3000
    Selector switch - Normalizer mode, test Span №1 scale% ii2,5
    Evaluation time, min3
    Example 1. Untreated yarns produced according to various methods are tested under the process conditions described below.
    Methods of preparation and physical properties of the untreated yarns are shown in Table 1.
    The test results on the touch of the obtained woven fabric are presented in table 2.
    Methods for preparing untreated raw.
    Method A (comparative). Melt spinning is performed using polyethylene terephthalate with a true viscosity of 0.62 at a speed of 23.0 g / min forcing through a die and at a temperature using a spinneret device including 24 spinning dies, each of which has a diameter of 0.3 mm and a length of 0.6 mm, and with the acceptance of threads at a speed of 1350 m / min. The resulting untreated thread is subjected to drawing, so that the degree of drawing is 3.06, the drawing speed is 500 m / min, and the drawing device temperature is 100 ° C. The thread is then heat treated using a hot plate. Heat treatment temperature 150 and.
    Method B. Polyethylene terephthalate with a true viscosity of 0.62 is subjected to chemical spinning from the melt at a speed of forcing through a spinneret at 33.3 g / min and at a temperature. Winding speed 6000 m / min. Between the first and second spinning discs, stretching is carried out, the degree of stretching is shown in Table 1.
    Weaving process conditions:
    on a basis - 50 denier / 2A filament
    duck 50 denier / 24 filaments.
    base density - 103 threads per 1 inch (4 threads per 1 mm) J
    duck density - 95 threads per inch (3.7 threads per 1 mm);
    unfinished fabric: 96 cm (width) 22 с1 (length).
    Example 2. The raw threads obtained in tests 1-7 of example 1 are subjected to a strong twist, so that the number of twists is 3000 per 1 m, then they are subjected to the treatment associated with the stabilization of twist. Measure temperature
    1600634
    the stabilization of the twist required to regulate the torsion moment after stabilization to such a value that should not cause problems in subsequent processing steps.
    The results are presented in Table.
    Example 3. Polyethylene terephthalate lat, having a true viscosity of 0.62, is spun from the melt at a speed of forcing through a 4.3 trillion bottle of 33.3 g / min and at a temperature of 290 ° C using an apparatus in which the spinnerette device has 24 spinnerets holes, each of which has a diameter of 0.3 mm and a length of 0.6 mm. The winding speed is 6000 m / min. Pulling is carried out
    0 between the first and second spraying discs with different degrees of stretching, as shown in Table 4. The circumferential speed of the second spinning disc was maintained at 5, 977 m / min,
    5 so that the winding tension is constant, equal to 0.3 g / denier, and, thus, the degree of stretching varies with the change in the peripheral speed of the first spinning disk.
    0 i
    The yarns obtained are weaved under the following conditions:
    on a basis - 50 denier / 324 filament;
    on duck - 50 days / 24 filaments
    base density - 103 threads per 1 inch (4 threads per mm);
    duck density - 95 threads per Q 1 inch (3.7 threads per mm),
    Shoulder fabric: 96.0 cm (width) 22 cm (D1shna).
    Example 4. The operations carried out are as in Example 3, but the degree of stretching is 12%, the tension during winding is 0.3 g / denier, and the winding speed is in the range of 2000-8000 m / min.
    Table 5 presents the states during chemical spinning and the properties of the threads.
    Example 5. The operations are carried out similarly to test 5 of example 1, but the temperature of the chemical strands, the true viscosity (f7) H of the equilibrium moisture of the supplied polymer chips, are changed, as shown in Table 6.
    , -;
    0
    five
    71600634
    u of each yarn obtained, as well as the states of chemical spinning, are shown in Table 7.
    Formula a and 3 brute
    A method of producing polyethylene terephthalate fiber, including for- MOBaime from polymer melt, curing, stretching, and high-speed
    eight
    package reception, characterized in that, in order to improve color uniformity and thermal shrinkage efficiency, stretching with a degree of A-20% is carried out at room temperature after the fiber is cured, and package reception is carried out at the same temperature 5000-8000 m / min.

    Stable
    eleven
    Stormy white smoke during heat treatment Unstable, single thread breaking
    Stable
    Weaving is difficult due to too much Ci
    Good good
    Shaggy Good Education
    Weaving is difficult for zvidu too large AS
    Very rough and tough
    to shock
    Rough and tough on
    Ouii iib
    The unevenness of twisting b soft, high strength, good to the touch
    Also.
    П160063412
    Table 6
    ic GTsh n1 1 par 7a; I Temperature chemical viscosity (P) | humid.,% 1 ..: - ..: -
     to I state with chem- U.%. Breaking of filament j .0, 43 0.3
    25 1 ,, 4 Very good ..
    -7 Very Good 0.45 o.,; ° Oche.horo.
    293.0 .. Good.
    303.4 is pretty bad.
    313.8 Pretty bad0 ,.
    Table 7
    0.43 0.3
    ..
    权利要求:
    Claims (1)
    [1]
    Formula and method A method for producing polyethylene terephthalate fiber, including molding from a polymer melt, curing, drawing and high-speed reception for packaging, characterized in that, in order to increase the uniformity of color and efficiency, thermal shrinkage, drawing with a degree of 4-20% is carried out at room temperature after curing of the fiber, and reception for packaging is carried out at the same temperature with a speed of 5000-8000 m / min.
    Table 1
    Is-pyta-nieWell done ! ” Stestumpstretched outgivaniya% V o / and * / o Residual elongation,% Thread Properties sobby-lu-what-niya to-paceratournayaprocessing, ° C Modulus of elasticity, g / deniert PMK 1 A 0 0.83 35 125 13.0 17.5 105 2 A 150 - 0.90 37 123 6.9 10.0 152 3 A 200 - 0.98 38 121 4.3 6.4 198 4 IN . 0 0.63 51 75 3.6 4.2 89 5 IN - 8 0.44 54 73 4.7 5,6 87 6 IN - 20 0.59 53 72 8.1 9.5 89 .7 IN - thirty 0.53 45 70 80.0 9.8 88
    table 2
    Testmelting Condition in the process of obtaining a raw thread Weaving condition Quality controlto the touch 1 Stable Weaving is difficult due to the large ingot - in magnitude A 8 y 2 _eleven_ Good Very rough and hard to touch 3 Rapid emission of white smoke during heat treatment Good Rough and hard to touch 4 Unstable, single thread rupture Nappy education Twisting unevenness 5 Stable Good Soft, high strength, good to touch 6 Also . 7 Weaving is difficult due to too large Λ 5 for ·. *
    ι
    Table 3
    Test
    6 7
    Twist stabilization temperature, ° С
    Measurement is not possible due to too large a value
    Table4
    ISYA “toad Speed of the first spawnJackm / n "me Atyagna becameX and 2 Kit Features '' AZ *,X Injection condition Quality wa aarl wovencloth Strength, g / day a Extension X Oscillation of tension before the first spinning. X disk Wobbletensionwhen windingX RippingWhigs 8 5,977 0 0.61 M. 51 3.6 13.5 44,4 Sometimes happens Choral 9 5,660 2 0.48 4.1 52 3.8 7.5 23.0 Sometimes on 10 5,747 4 0.48 4.1 53 4.15 - 620.5 Do not occur eleven 5,534 8 0.44 4.2 54 4.7 5.3 20.8 That ae 12 5,337 12 0.45 4.1 54 5,0 5.2 21.0 - n ! 3 5,152 16 0.50 54 6.5 5,0 16,4 and 4,980 20 0.59 4.2 53 8.1 5.8 13.0in p_ fifteen 4,899 22 0.54 4.2 48 10,4 5,4 13.1 Sometimes happens Crepe defect ϊΰ 4,782 25 0.55 4 (7 47 13,4 5.3 13.5 Comes over Creperavia defect 17 4,598 thirty 0.53 4.3 45 80.0 5,6 11.0 Also
    Table 5
    Testmelting Soongrowthwinding, m / min Properties threads Chemical spinning condition Strength, g / denier Elongation,% % The heterogeneity of the thread, and,% 18 2000 2,3 260 65 Over 10, very bad The component filament often hasrupture, tension during chemical spinning and winding are large 19 3000 2.6 180 62 1, 08 Spinning and winding tension fluctuations are large 20 4000 3.3 100 60 1, 09 Also 21 5000 3.8 62 5.3 0.67 Chemical spinning is pretty stable 22 5500 3.9 - 60 5,0 0.42 Stable chemical spinning 23 6000 4.1 54 4.8 0.45 Also 24 '7000 4.2 46 4.8 40.40 Also 25 8000 4.3 40 4.7 0.43 Also
    π 1600 634 12
    Table 6
    Testmelting True viscosity (C) Equilibrium humidity,% Spinning temperature, ° 26 0.62 . .0.015 310 27 0.54 0.010 310 28 0.64 ' 0.010 305 29th 0.66 0.010 300 thirty 0.66 0.007 295 31 0.70 0.007 295
    Table 7
    Testmelting Chemical spinning condition and,% Break 26 1.4 Very good 0.43 0.3 27 2.0 Very good 0.45 0.6 28 2,8 Very good 0.40 0.4 29th 3.0 Good 0.48 0.8 thirty 3.4 Pretty bad 0.57 1,5 31 3.8 Pretty bad 0.83 2.0
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    同族专利:
    公开号 | 公开日
    GB2078605B|1983-11-23|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3772872A|1973-03-27|1973-11-20|Du Pont|Polyester yarn for draw-texturing process|
    DE2610327A1|1976-03-12|1977-09-22|Bayer Ag|METHOD OF MANUFACTURING POLYAMIDE 6, POLYAMIDE 6,6 AND POLYESTER FILAMENT YARNS|
    US4134882A|1976-06-11|1979-01-16|E. I. Du Pont De Nemours And Company|Polyfilaments|
    JPS5717967B2|1977-01-13|1982-04-14|
    JPS5947726B2|1977-05-16|1984-11-21|Teijin Ltd|
    JPS53147814A|1977-05-24|1978-12-22|Teijin Ltd|Polyester fiber|
    JPS5837408B2|1977-08-08|1983-08-16|Teijin Ltd|
    DE2840988C2|1978-09-21|1986-01-23|Akzo Gmbh, 5600 Wuppertal|Process for the production of monofilaments|
    US4233363A|1979-03-02|1980-11-11|E. I. Du Pont De Nemours And Company|Polyester draw-texturing feed yarns|
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    US5827464A|1991-01-29|1998-10-27|E. I. Du Pont De Nemours And Company|Making high filament count fine filament polyester yarns|
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    EP0244653B1|1986-04-09|1994-07-13|Asahi Kasei Kogyo Kabushiki Kaisha|Winder of synthetic yarn, cheese-like yarn package of synthetic yarn, and method for winding the same|
    DE3770623D1|1987-03-17|1991-07-11|Unitika Ltd|POLYESTER FIBER AND METHOD FOR PRODUCING THE SAME.|
    US5013506A|1987-03-17|1991-05-07|Unitika Ltd.|Process for producing polyester fibers|
    DE3819913A1|1988-06-11|1989-12-21|Davy Mckee Ag|METHOD FOR PRODUCING UNIFORM POY FILAMENTS|
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    WO1993010288A1|1991-11-18|1993-05-27|E.I. Du Pont De Nemours And Company|Improvements in continuous filaments, yarns and tows|
    WO1993010292A1|1991-11-18|1993-05-27|E.I. Du Pont De Nemours And Company|Improvements in polyester filaments, yarns and tows|
    DE4208916A1|1992-03-20|1993-09-23|Akzo Nv|POLYESTER FIBER AND METHOD FOR THE PRODUCTION THEREOF|
    US7676047B2|2002-12-03|2010-03-09|Bose Corporation|Electroacoustical transducing with low frequency augmenting devices|
    CN101490318B|2006-07-27|2012-09-05|欧瑞康纺织有限及两合公司|Method for the production of a curled synthetic thread|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP8657680A|JPS5716914A|1980-06-27|1980-06-27|Polyester fiber|
    JP8657580A|JPS5716913A|1980-06-27|1980-06-27|Production of polyester fiber|
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