The factors that affect the hollow result of boiled yarn are the twist multiplier of core yarn, the percentage of the core, the kind of PVA fiber and the core coverage of core-yarn.

  • 影响空芯纱退维后中空效果的因素有:包芯纱的捻系数,芯纱的含量,选用PVA纤维的品种及包芯纱的包覆效果等。

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