The brightening polyester chip is made by addition of brightening agent during the polymerisation.

在聚酯的聚合过程中加入发光剂生产发光聚酯切片，用制得的发光切片纺成纤维。

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The brightening polyester chip is made by addition of brightening agent during the polymerisation.

在聚酯的聚合过程中加入发光剂生产发光聚酯切片，用制得的发光切片纺成纤维。

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