In this paper, the forming courses of the ribboning, bulge, expansive edge, cob-webbing and slough-off are analyzed.

• 分析了拉伸变形后卷装中出现的重叠、凸边、胀边、蛛网丝和脱圈等疵点的形成过程,提出了克服这些疵点的有效措施。