When the content of the fine material in the slag reaches 28%, the slag is the most vulnerable to start.

当试验中细粒物质含量占到总量的28%时，起动所需水量最小。

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Tecnhical key to the production of fine denier FDY was briefly introduced. Fine denier FDY requires material chips, water content ect and more accurate design more strict technically.

对细旦fdy生产的技术关键做了简要论述。生产细旦fdy对原料切片、干切片含水率及工艺条件要求比生产常规fdy严格。因此要精心设计以求生产出优质的细旦fdy。

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