Coil case

The strength and elongation properties of the loop yarn is mainly decided by the core yarn.

结子线有两种断裂形式 ,纱线的强伸性能有较大差别 ;圈圈线的强伸性能主要由芯纱决定 ;氨纶包缠纱由氨纶提供弹性 ,由包缠在氨纶外侧的非弹性纱决定纱线的强力。