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    Laboratory device to assist in the simulation of synthetic fiber heat-setting conditions
    3.
    发明授权
    Laboratory device to assist in the simulation of synthetic fiber heat-setting conditions 失效
    实验室装置协助模拟合成纤维的热定型条件

    公开(公告)号：US5664455A

    公开(公告)日：1997-09-09

    申请号：US476585

    申请日：1995-06-07

    申请人： Ann S. Johnson ,  John A. Kilpatrick ,  Lewis W. Davis, Jr. ,  David B. Ledford ,  Larry D. Henderson ,  Phillip E. Wilson

    发明人： Ann S. Johnson ,  John A. Kilpatrick ,  Lewis W. Davis, Jr. ,  David B. Ledford ,  Larry D. Henderson ,  Phillip E. Wilson

    IPC分类号： D02J13/00 ,  G01N33/36 ,  G01N3/60

    CPC分类号： D02J13/00 ,  G01N33/365

    摘要： A laboratory-scale device for assisting in the simulation of heat setting conditions includes a pair of laterally spaced-apart flexible heat-resistant cords (e.g., formed of aramid fibers) tensioned between forward and rearward rigid cross-support bars. At least one rigid tensioning bar is provided parallel to the support cords and extending between the cross-support bars so as to maintain the desired tension on the flexible heat-resistant cords. The tensioning bar thus allows for manual or automated lateral winding of the synthetic heat-settable fibers or yarns about the spaced-apart heat-resistant cords during preparation of the device for a laboratory test run. The tensioning bar may thereafter be removed once the device has been secured in position with the laboratory heat-setting oven. In such a manner, therefore, various effects on heat-setting conditions simulating can be investigated.

    摘要翻译： 用于辅助模拟热定形条件的实验室规模装置包括在前后刚性交叉支撑杆之间张紧的一对横向间隔开的柔性耐热帘线（例如由芳族聚酰胺纤维形成）。 至少一个刚性张紧杆平行于支撑绳提供并且在交叉支撑杆之间延伸，以便在柔性耐热帘线上保持期望的张力。 因此，在制备用于实验室测试运行的装置期间，张紧杆允许在间隔开的耐热帘线周围的合成热固性纤维或纱线的手动或自动横向卷绕。 一旦设备已经用实验室热定型炉固定在适当位置，则可以将张紧杆移除。 因此，可以研究对模拟的热定形条件的各种影响。

    Methods of making different additive-containing filaments
    5.
    发明授权
    Methods of making different additive-containing filaments 失效
    制备不同添加剂的细丝的方法

    公开(公告)号：US5833893A

    公开(公告)日：1998-11-10

    申请号：US811061

    申请日：1997-03-03

    申请人： Frank R. Jones ,  Stanley A. McIntosh ,  Gary W. Shore ,  Karl H. Buchanan ,  David B. Ledford ,  Wayne S. Stanko ,  G. Daniel Gasperson ,  Charles F. Helms, Jr.

    发明人： Frank R. Jones ,  Stanley A. McIntosh ,  Gary W. Shore ,  Karl H. Buchanan ,  David B. Ledford ,  Wayne S. Stanko ,  G. Daniel Gasperson ,  Charles F. Helms, Jr.

    IPC分类号： C08J3/22 ,  C08K9/08 ,  C08K9/10 ,  D01D1/06 ,  D01F1/04 ,  D01F1/10 ,  D01F6/60 ,  D01F8/04 ,  D01F8/12 ,  D06N7/00

    CPC分类号： B29C47/0877 ,  B29C47/0014 ,  C08J3/226 ,  C08K9/08 ,  C08K9/10 ,  D01D1/065 ,  D01F1/04 ,  D01F1/10 ,  D01F6/60 ,  D01F8/04 ,  D01F8/12 ,  D06N7/0065 ,  C08J2467/00 ,  C08J2477/00 ,  Y10T428/23993 ,  Y10T428/29 ,  Y10T428/2927

    摘要： Methods of continuously producing sequential lengths of different additive-containing melt-spun filaments include continuously supplying a melt-spinnable polymeric host material to orifices of a spinneret and controllably dosing at least one dispersible additive concentrate system containing a pigment in a liquid nonaqueous polymeric carrier to the melt flow of polymeric host material upstream of the spinneret orifices. In such a manner, a first polymeric mixture of the dispersible additive concentrate system and the polymeric host material is obtained which achieves an additive attribute. During a first time interval, the first mixture is extruded through the spinneret orifices; and thereafter, during a second subsequent time interval, the dosing of the at least one dispersible additive is changed so as to form a second mixture having a second additive attribute different from the first additive attribute while continuously supplying the melt flow of polymeric host material to the spinneret orifices. The melt-spun filaments will thus have a first length corresponding to the first additive attribute of the first mixture and a second subsequent length corresponding to the second additive attribute of the second mixture. The methods and additives employed most preferably achieve Hunter Green Purge Values of between about 0.10 to about 1.40 sec/cm.sup.3.

    摘要翻译： 连续生产不同添加剂的熔纺丝的连续长度的方法包括将熔融可纺的聚合物主体材料连续地供应到喷丝头的孔口，并可控制地将至少一种含有颜料的可分散的添加剂浓缩物系统加入到液体非水性聚合物载体中 聚合物主体材料在喷丝孔口上游的熔体流动。 以这种方式，获得可分散的添加剂浓缩物体系和聚合物主体材料的第一聚合物混合物，其实现添加剂属性。 在第一时间间隔期间，第一混合物通过喷丝孔被挤出; 此后，在随后的第二时间间隔期间，改变至少一种可分散添加剂的计量，以便形成具有不同于第一添加剂属性的第二添加剂属性的第二混合物，同时连续地将聚合物主体材料的熔体流动提供给 喷丝孔。 因此，熔纺丝将具有对应于第一混合物的第一添加剂属性的第一长度和对应于第二混合物的第二添加剂属性的第二后续长度。 所采用的方法和添加剂最优选达到约0.10至约1.40秒/ cm3之间的猎人绿色清洗值。