The goal of package yarn dyeing can be summarized in one sentence: to make the dye liquor reach every fiber surface in the yarn package as consistently as possible. However, the geometric structure of...

For staple-fiber yarns, twist is a necessary means of imparting strength. An untwisted fiber bundle has almost no practical strength because there is insufficient friction between fibers, and many fib...

When evaluating whether a sewing thread is good, the most intuitive indicator is whether it is strong. In actual sewing, however, high breaking strength does not necessarily mean good performance. The...