全聚纺涤棉混纺纱内纤维的径向分布

为研究全聚纺混纺纱中纤维的径向分布情况，采用环锭纺、网格圈型集聚纺和全聚纺3种方法纺制28.1tex涤棉混纺纱线，运用哈氏切片器切取三种混纺纱线样本，借助MOTTC B1型显微镜观察并采集样本中两种纤维的分布状况图，结合汉密尔顿（Hamilton）指数的方法分析，得到全聚纺混纺纱内涤纶纤维和棉纤维在纱截面内的内外转移趋势及分布规律。结果指出：利用传统环锭纺纺制的涤棉混纺纱，涤纶纤维有明显向纱芯转移的趋势，而网格圈型集聚纺，涤纶纤维向纱芯转移的趋势较传统环锭纺弱，全聚纺相对于网格圈型集聚纺而言，涤纶纤维分布更加随机，并且涤纶纤维有向纱外转移的趋势。

Analyses on fiber radial distributions of polyester/cotton blended yarn in complete condensing spinning

In order to study the fiber radial distribution of blended yarn in complete condensing spinning, polyester/cotton blended yarn was spun in ring spinning, Lattice apron compact spinning and Complete condensing spinning systems respectively. The kinds of blended yarn sample are cut by chip cutter. By using MOTTC B1 microscope and Hamilton Migration Index method, the migration trend and radial distribution of fibers in the polyester/cotton blended yarns were studied. It is shown that the polyester is prioritized to transfer inside. Comparing with ring spinning, the migration index of fibers in the blended yarns spun by Lattice apron compact spinning systems is smaller. Comparing with Lattice apron compact spinning systems, radial distribution of fibers in the blended yarns spun by complete condensing spinning system is more random.