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发明公开
CN106245177A 一种环锭纺粗旦弹力纬纱及其生产工艺 无效 - 驳回

一种环锭纺粗旦弹力纬纱及其生产工艺
摘要：
本发明提供一种环锭纺粗旦弹力纬纱，所述弹力纬纱，纤度为18±2英支；本发明还提供一种环锭纺粗旦弹力纬纱的生产工艺，所述生产工艺，包括PA66未拉伸丝的制备、粗纱、PA66未拉伸丝的喂入、细纱、自动络筒。本发明制备的弹力纬纱，纤度为18±2英支，单纱断裂强力：350±50cN，强力CV：＜8%；断裂伸长率为290±50% ，伸长率CV：＜8%；本发明制备的弹力纬纱，耐热性好，在织物浸胶等热处理过程中，弹力纬纱的强力和可延伸性能损失小；240°C条件下放置4分钟后，单纱断裂强力300±50cN，断裂伸长率200±50%。
摘要（英）：

The invention provides a ring spinning heavy denier elastic weft yarn. The fineness of the elastic weft yarn is 18+/-2 English counts. The invention also provides a production process of the ring spinning heavy denier elastic weft yarn. The production process comprises the steps of preparation of PA66 undrawn yarns, roving, feeding of the PA66 undrawn yarns, spinning and automatic winding. The elastic weft yarn has the beneficial effects that the fineness of the elastic weft yarn is 18+/-2 English counts; the single yarn breaking strength is 350+/-50cN; the strength CV is less than 8%; the elongation at break is 290+/-50%; the elongation CV is less than 8%; the elastic weft yarn has good heat resistance; the losses of the strength and extendability of the elastic weft yarn are low in the heat treatment processes, such as fabric dipping; after standing at 240 DEG C for 4 minutes, the single yarn breaking strength is 300+/-50cN and the elongation at break is 200+/-50%.

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