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1.发明授权Dry spinning process with hot air and with spinning cell outputs greater than 20 kg per cell per hour 失效干燥纺丝过程用热空气和纺丝细胞输出大于每公斤每小时20公斤
公开(公告)号：US5013504A
公开(公告)日：1991-05-07
申请号：US411078
申请日：1989-09-22
摘要： A process for the dry spinning of synthetic polymers, in particular polyacylonitrile fibres, from solutions in high polar solvents, such as dimethylformamide, which are heated to 100.degree.-150.degree. C. shortly upstream of the spinneret and spun there by spinnerets having a certain shape, and in the spinning cell the specific energy supply is at least 0.090 kWh per m.sup.2 of heated cell area, the cell is charged with at least 70 m.sup.3 (S.T.P.) of hot air per hour, and the filaments are treated in the lower part of the cell with water or aqueous preparations, so that the temperature of the filaments which leave the cell is decreased below 110.degree. C. Under these conditions, the unexpectedly high spinning cell outputs of at least 20 kg of PAN solid per spinning cell per hour can be achieved without yellowing or self-ignition of the filaments occurring.
摘要翻译： 合成聚合物特别是聚腈腈纤维从高极性溶剂如二甲基甲酰胺中的溶液干燥的方法，其在喷丝头上游短时间内加热至100-150℃，并通过喷丝头旋转， 形状，并且在纺丝电池中，比能量供应量为每平方米加热池面积至少为0.090kWh，电池每小时充入至少70m 3（STP）的热空气，并且灯丝在下部处理 的细胞，使得离开细胞的细丝的温度降低到110℃以下。在这些条件下，出乎意料的高纺丝细胞每小时纺丝细胞产生至少20kg的PAN固体 可以实现不发生黄丝或自发点火的灯丝。
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2.发明授权Process for the production of dry-spun hollow polyacrylonitrile fibers and filaments 失效生产干纺中空聚丙烯腈纤维和细丝的方法
公开(公告)号：US4457885A
公开(公告)日：1984-07-03
申请号：US461803
申请日：1983-01-28
申请人： Ulrich Reinehr , Kurt Bernklau , Hans K. Burghartz , Toni Herbertz , Hermann-Josef Jungverdorben
发明人： Ulrich Reinehr , Kurt Bernklau , Hans K. Burghartz , Toni Herbertz , Hermann-Josef Jungverdorben
CPC分类号： D01F6/18 , D01D5/24 , Y10T428/2929 , Y10T428/2975
摘要： Hollow acrylonitrile fibres and filaments are prepared by dry spinning the spinning dope through a nozzle having loop-shaped nozzle orifices, the solution having a viscosity equivalent to at least 120 falling ball seconds, measured at 80.degree. C., or at least 75 falling ball seconds, measured at 100.degree. C., wherein the nozzle orifice area of the profiling nozzle is smaller than 0.2 mm.sup.2 and the maximum width of the sides of the loop-shaped nozzle is 0.1 mm and the overlap between the two ends of the sides of the loop-shaped nozzle forms an angle of from 10.degree. to 30.degree. measured from the center of the nozzle and wherein the spinning air acts on the filaments in a transverse direction to the filament take-off and the air direction forms an angle of from 80.degree. to 100.degree. with a straight line passing through the opening between the sides.
摘要翻译： 中空丙烯腈纤维和长丝通过将纺丝原液通过具有环形喷嘴孔的喷嘴进行干纺来制备，该溶液的粘度相当于在80℃下测量的至少120个落球秒，或至少75个落球 秒，在100℃下测量，其中成型喷嘴的喷嘴孔面积小于0.2mm 2，并且环形喷嘴的侧面的最大宽度为0.1mm，并且两侧的两端之间的重叠 环形喷嘴形成从喷嘴中心测量的10°至30°的角度，并且其中旋转空气沿着灯丝起飞的横向方向作用在长丝上，并且空气方向形成从 80°至100°，直线穿过两侧之间的开口。
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公开(公告)号：US4180617A
公开(公告)日：1979-12-25
申请号：US820240
申请日：1977-07-29
CPC分类号： D01F1/08 , D01F6/18 , D01F6/54 , D01F8/04 , Y10T428/2929 , Y10T428/2935 , Y10T428/2973 , Y10T428/2975
摘要： The wearing comfort of textiles produced from synthetic fibers which are normally hydrophobic, e.g., polyacrylonitrile, is improved by modifications in the spinning process whereby hygroscopic fibers having a sheath/core structure and a microporous core are obtained, which fibers are capable of absorbing considerably more water than conventionally dry spun fibers of the same synthetic polymer not having a sheath/core structure. Several suitable dry spinning processes for producing the improved fibers are disclosed.
摘要翻译： 由通常疏水性的合成纤维（例如聚丙烯腈）生产的纺织品的穿着舒适性通过纺丝过程中的改进得到改善，由此获得具有鞘/芯结构和微孔芯的吸湿性纤维，该纤维能够显着地吸收 水比不具有鞘/芯结构的相同合成聚合物的常规干纺纤维。 公开了用于生产改进的纤维的几种合适的干法纺丝方法。
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4.发明授权Continuous production of acrylonitrile filaments and fibers from spinning material of low residual solvent content 失效由纺丝材料连续生产丙烯腈长丝和纤维，残留溶剂含量低
公开(公告)号：US5013502A
公开(公告)日：1991-05-07
申请号：US409550
申请日：1989-09-19
摘要： A process for the production of crimped filaments and fibers of acrylonitrile polymers of copolymers containing at least 40% by weight acrylonitrile units, by dry spinning from highly polar solvents, where the filaments are brought to extremely low solvent contents in the actual spinning tube by a minimum of superheated steam prepared in the absence of water at very high spinning tube temperatures and spinning gas temperatures, but are cooled to low filament temperatures in the spinning tube by application of water or aqueous finishes in a quantity equivalent to more than 10% by weight moisture. In this way, spun PAN filaments of good natural color are safely obtained, in which there is no washing stage and no drying stage. Acrylic fibers and filaments combining a vacuolestable structure with a very high degree of whiteness and gloss are thus obtained with densities of at least 1.180 g/cm.sup.3, giving shrinkage-free to high-shrinkage fibers, depending on the aftertreatment applied.
摘要翻译： 一种制备卷曲长丝的纤维和含有至少40重量％丙烯腈单元的共聚物的丙烯腈聚合物的方法，通过从极性极性溶剂中干燥纺丝，其中丝线在实际纺丝管中达到极低的溶剂含量 在纺丝管温度和纺丝气体温度非常高的条件下，在不存在水的情况下制备的最小过热蒸汽，但是通过施加相当于10重量％以上的水或水性表面处理，在纺丝管中冷却至低丝温度 湿气。 以这种方式，可以安全地获得具有良好天然色彩的纺丝PAN丝，其中没有洗涤阶段并且没有干燥阶段。 因此，获得具有至少1.180g / cm 3的密度的具有非常高的白度和光泽度的可空泡结构的丙烯酸纤维和长丝，根据所施加的后处理，使高收缩纤维无收缩。
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公开(公告)号：US4505870A
公开(公告)日：1985-03-19
申请号：US505514
申请日：1983-06-17
摘要： Polyacrylonitrile filaments having a residual solvent content of less than 5% by weight and a total linear density of over 100,000 dtex can be prepared without contact with an extracting agent for the spinning solvent by a process in which(a) the spinning solution spun has a viscosity at 100.degree. C. of 10 to 60 falling-ball seconds,(b) the filaments are treated while still hot, directly at the end of the spinning cell, inside it or immediately outside the end of the cell, with a spin-finish which contains a lubricant and an antistat and which gives the filaments a moisture content of at most 10% by weight, relative to the solids content of the fibre, and(c) the filaments are immediately exposed to a heat treatment without cooling down first.
摘要翻译： 残留溶剂含量小于5重量％，总线密度超过100,000dtex的聚丙烯腈长丝可以通过纺丝溶液的萃取剂与纺丝溶剂的萃取剂接触而制备，其中（a）旋转纺丝溶液具有 在100℃下的粘度为10至60个落球秒，（b）长丝在仍然热的情况下直接在纺丝单元的末端处于其内部或紧邻电池端部之外， 其包含润滑剂和抗静电剂，并且相对于纤维的固体含量使细丝的水分含量为至多10重量％，和（c）长丝立即暴露于热处理而不先冷却 。
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6.发明授权Process for the preparation of hydrophilic fibres and filaments from synthetic polymers 失效从合成聚合物制备亲水性纤维和长丝的方法
公开(公告)号：US4185059A
公开(公告)日：1980-01-22
申请号：US775574
申请日：1977-03-08
CPC分类号： D01F1/10 , D01F6/54 , Y10T428/2935
摘要： The invention relates to a process for the production of hydrophilic filaments and fibers which comprises wet- or dry-spinning a fibre-forming synthetic polymer from a spinning solvent containing from 5 to 50% of a substance which has a higher melting or boiling point than the spinning solvent which is miscible with the spinning solvent and with a liquid suitable for use as a washing liquid and which is a non-solvent for the polymer to be spun and from 0,1 to 20% by weight of at least one substance which decomposes into a gas under heating.
摘要翻译： 本发明涉及一种生产亲水长丝和纤维的方法，其包括将纤维形成合成聚合物从含有5至50％具有较高熔点或沸点的物质的纺丝溶剂中湿纺或干纺丝 与纺丝溶剂和适合用作洗涤液体的液体混合的纺丝溶剂，其是用于待纺的聚合物的非溶剂和0.1至20重量％的至少一种物质，其中 在加热下分解成气体。
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7.发明授权Processes for the production of dry-spun polyacrylonitrile profiled fibres and filaments 失效用于生产干纺聚丙烯腈异型纤维和长丝的方法
公开(公告)号：US4810448A
公开(公告)日：1989-03-07
申请号：US41890
申请日：1987-04-22
申请人： Ulrich Reinehr , Kurt Bernklau , Toni Herbertz , Hermann-Josef Jungverdorben , Hans K. Burghartz
发明人： Ulrich Reinehr , Kurt Bernklau , Toni Herbertz , Hermann-Josef Jungverdorben , Hans K. Burghartz
摘要： A process for the production of acrylonitrile fibers and filaments having a precise cross-sectional profile in which filament-forming synthetic polymers are dry-spun from a solution having a viscosity of at least 120 falling bass seconds, measured at 80.degree. C., or a viscosity of at least 75 falling ball seconds, measured at 100.degree. C. Such solution is dry-spun through one or more nozzles. The nozzle hole are of the profile nozzles being less than 0.2 mm.sup.2 and the lateral width being less than 0.17 mm.
摘要翻译： 制备具有精确横截面轮廓的丙烯腈纤维和长丝的方法，其中长丝形成合成聚合物由在80℃下测量的粘度至少为120次低音的秒的溶液干纺，或 在100℃下测得的至少75次落球秒的粘度。这种溶液通过一个或多个喷嘴干纺。 轮廓喷嘴的喷嘴孔小于0.2mm 2，横向宽度小于0.17mm。
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8.发明授权Continuous dry-spinning process for highly shrinkable acrylonitrile filaments and fibers 失效用于高收缩丙烯腈长丝和纤维的连续干纺工艺
公开(公告)号：US4508672A
公开(公告)日：1985-04-02
申请号：US505542
申请日：1983-06-17
CPC分类号： D01F6/18
摘要： Ready-for-dispatch highly shrinkable filaments and fibers made of acrylonitrile copolymers can be prepared in a continuous dry-spinning method in which:(a) the spinning solution spun has a viscosity at 100.degree. C. of 10 to 60 falling-ball seconds,(b) the evaporation of the solvent in the spinning cell is controlled in such a way that on leaving the spinning cell the solvent contact of the filaments is at most 10% by weight, relative to the solids content of the fiber,(c) before the stretch the filaments are treated with a spin-finish which contains a lubricant and an antistat and gives the filaments a moisture content of at most 10% by weight, relative to the solids content of the fiber, and(d) before or during the stretch the filaments have no contact with any other extraction liquid for the spinning solvent.
摘要翻译： 由丙烯腈共聚物制成的高效收缩长丝和纤维可以在连续干纺法中制备，其中：（a）纺丝纺丝溶液在100℃下的粘度为10至60个落球秒 （b）纺丝细胞中溶剂的蒸发以这样一种方式进行控制，即离开纺丝细胞时纤维的溶剂接触率相对于纤维的固体含量为至多10重量％，（c ）在拉伸之前，用含有润滑剂和抗静电剂的旋涂处理细丝，并且相对于纤维的固体含量使长丝具有至多10重量％的水分含量，和（d）在 在拉伸期间，丝与纺丝溶剂的任何其它提取液不接触。
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9.发明授权Process for the production of dry-spun hollow polyacrylonitrile fibers and filaments 失效生产干纺中空聚丙烯腈纤维和细丝的方法
公开(公告)号：US4432923A
公开(公告)日：1984-02-21
申请号：US386501
申请日：1982-06-09
CPC分类号： D01D5/24 , B01D69/08 , B01D69/085 , B01D69/087 , B01D71/42 , D01F6/18
摘要： Hollow polyacrylonitrile fibers having a uniform closed cavity structure are obtained by dry-spinning filament-forming acrylonitrile polymers from a solution through a spinning jet comprising annular jet bores of the type shown in FIG. 1, the solution having a viscosity of at least 120 falling-ball seconds, as measured at 80.degree. C. or of at least 75 falling-ball seconds, as measured at 100.degree. C., the ring of the annular jet bores consisting of three, preferably equally large, ring segments at a distance from one another of at most 0.2 mm, the surface area of the jet bores of the profile jet amounting to less than 0.2 mm.sup.2 and the side width of the ring segments amounting to at most 0.1 mm, the spinning air acting on the filaments transversely of the direction in which they are taken off relative to the center of the spinning jet.
摘要翻译： 通过包含图1所示类型的环形喷射孔的纺丝喷嘴从溶液中干燥成丝的丙烯腈聚合物，获得具有均匀闭合腔结构的中空聚丙烯腈纤维。 如图1所示，该溶液在100℃下测量时具有至少120个落球秒的粘度，如在80℃或至少75个落球秒时测量的，环形射流孔的环由 三个，优选同等大的环形段，彼此距离至多0.2mm，轮廓射流的喷射孔的表面积小于0.2mm 2，环段的侧宽度至多为0.1 mm，纺丝空气在相对于纺丝喷嘴的中心离开的方向上横向于细丝。
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10.发明授权Continuous process for the production of filaments or fibers from difficultly soluble synthetic polymers 失效用于从难溶性合成聚合物生产长丝或纤维的连续方法
公开(公告)号：US4427613A
公开(公告)日：1984-01-24
申请号：US279898
申请日：1981-07-02
申请人： Ulrich Reinehr , Joachim Dross , Toni Herbertz , Hermann-Josef Jungverdorben , Hans K. Burghartz
发明人： Ulrich Reinehr , Joachim Dross , Toni Herbertz , Hermann-Josef Jungverdorben , Hans K. Burghartz
摘要： The invention relates to a process for the continuous production of synthetic non-discolored filaments and fibers from a filament forming synthetic polymer being difficultly soluble in an organic polar solvent particularly polyacrylonitrile polymers which process comprises preparing a suspension of said polymer and said solvent at room temperature and subsequently heating the suspension thus formed for at least 3 minutes to at least 130.degree. C., and filtering the clear spinning solution formed without intermediate cooling, homogenizing and spinning it immediately afterwards into filaments.
摘要翻译： 本发明涉及从形成合成聚合物的细丝连续生产合成非变色长丝和纤维的方法，难以溶于有机极性溶剂，特别是聚丙烯腈聚合物，该方法包括在室温下制备所述聚合物和所述溶剂的悬浮液 然后将由此形成的悬浮液加热至少3分钟至至少130℃，并将形成的透明纺丝溶液过滤，不经中间冷却，均化并立即纺丝成长丝。
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