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1. 发明授权

US5558901A Floss yarn bulking assembly and method 失效
标题翻译：松下纱线组装及方法
公开(公告)号：US5558901A
公开(公告)日：1996-09-24
申请号：US249515
申请日：1994-05-26
申请人： Sean G. Gilligan , Dermot T. Freeman , Larry J. Oliphant , Jeffrey S. Messmann , Patrick J. Hanley , Gerald S. Szczech
发明人： Sean G. Gilligan , Dermot T. Freeman , Larry J. Oliphant , Jeffrey S. Messmann , Patrick J. Hanley , Gerald S. Szczech
IPC分类号： A61C15/04 , D02J1/22 , D06M23/10 , F26B13/00 , B05D1/38 , B05D3/02 , B05D3/04 , B05D3/12
CPC分类号： D02J1/222 , A61C15/042 , D06M23/10 , F26B13/002
摘要： A process for manufacturing a continuous dental floss brush comprising alternating portions of thread sections which do not stretch significantly under tension and brush sections which stretch under slight tension, includes the step of coating at least the thread sections of a reverse twisted high tenacity nylon yarn with a solution of polymer in a volatile solvent, the polymer being selected from nylon, polyurethane and mixtures thereof. The thread sections of the yarn are thereafter heated to vaporize solvent therefrom while the yarn is maintained under a tension of from 0.15 to 1N. In the humidifier assembly, having a housing which defines a humidifier zone, the brush sections of the yarn are exposed to a mixture of steam and gas, the steam and gas mixture having a temperature of from 130.degree. C. and a water vapor content of 65%(v/v), while the yarn is under a tension of approximately zero until the brush sections of the yarn have regained at least 100 percent of the diameter of the uncoated, relaxed yarn. Finally the brush sections of the yarn are heated to remove solvent therefrom while the yarn is under a tension of approximately zero to form a floss brush product. As the yarn passes through the humidifier zone, the tension on the yarn is controlled to take account of changes in its length.
摘要翻译：一种用于制造连续牙线刷的方法，其包括在张力下不显着拉伸的螺纹部分的交替部分和在轻微张力下拉伸的刷部分，包括至少涂覆反捻高韧性尼龙纱线的螺纹部分的步骤，聚合物在挥发性溶剂中的溶液，所述聚合物选自尼龙，聚氨酯及其混合物。然后，纱线的螺纹部分被加热以使溶剂蒸发，同时纱线保持在0.15-1N的张力。在具有限定加湿器区域的壳体的加湿器组件中，纱线的刷部分暴露于蒸汽和气体的混合物中，蒸汽和气体混合物的温度为130℃，水蒸汽含量为 65％（v / v），而纱线处于大约为零的张力，直到纱线的毛刷部分已经重新获得未涂覆的松弛纱线的直径的至少100％。最后，纱线的毛刷部分被加热以除去溶剂，同时纱线处于约零的张力下形成牙线刷产品。当纱线通过加湿器区域时，控制纱线上的张力以考虑其长度的变化。

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