气流纺纱是利用气流将纤维在高速回转的纺纱杯内凝聚加捻输出成纱的一种新型纺纱技术。他不用锭子，主要靠分梳辊、纺杯、假捻装置等多个部件。分梳辊用来抓取和分梳喂入的棉条纤维，通过他的高速回转所产生的离心力可把抓取的纤维甩出。纺杯是个小小的金属杯子，他的旋转速度比分梳辊高出10倍以上，由此产生的离心作用，把杯子里的空气向外排；根据流体压强的原理，使棉纤维进入气流杯，并形成纤维流，沿着杯的内壁不断运动。
捷克伊文达（Investa）在1969年瑞士巴塞尔ITMA展上，向市场推荐了气流纺技术，它的产能远远高出环锭纺，但最初气流纺技术生产的气流纱手感非常粗糙，因而在许多应用领域难以达到人们的期望。
然而，随着技术的不断提升，气流纱越来越接近环锭纱的特徵。气流纱已成为牛仔布、针织内衣和许多其他产品的首选纱线。
气流纺与环锭纺一个是新型纺织技术，一个是老式纺纱技术。气流纺是气流纺纱，而环锭纺则是机械纺,就是由锭子和钢铃、钢丝圈进行加捻，由罗拉进行牵伸。而气流纺则是由气流方式输送纤维，由一端握持加捻。一般来说，环锭纱毛羽较气流纺偏多，强度较高，品质较好。气流纺工序短，伸出的毛羽较少，尤其粘胶纤维更为明显，纱上的纤维不会断裂，但许多毛羽被包缠纤维缠在纱体上，所以转杯纱毛羽较少，支数和拈度不能很高，价格也较低。
从纱体结构上来说，环锭纺比较紧密，而气流纺的比较蓬松，风格粗犷，适合做牛仔面料，气流纺的纱一般比较粗。DW7042H 数字式气流纺是一款运用气流纺纱技术将熟条纺成开端纱的仪器，它具有以下特点：
- PLC+触摸屏，易于学习和操作；
- 梳理辊，转杯和缠绕独立控制；
- 多功能设计，清理，设置和维修都很简单。
想要了解更多仪器详情，欢迎来电咨询。
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