A new deinking agent was used for the deinking experiment of xerographic paper. The deinking technological conditions were optimized and physical properties of the deinked pulp were tested.

本文采用一种新型的脱墨剂进行了静电复印纸的脱墨试验，探讨了脱墨工艺和最佳条件，并且检测了脱墨纸浆的物理性能。

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The paper analyzed the reasons for scaling and introduces and discussed the effect of applying straw pulp black liquor scaling control agent.

草浆黑液蒸发系统结垢问题严重，本文分析出结垢原因，对采用草浆黑液结垢控制剂后的使用效果进行叙述并展开讨论。

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Then a few sample of chitosan is selected because of their obvious strengthening effect on wood pulp. This study is base of more research of chitosan used as paper strengthening agent.

以对木浆的增强效果为标准，从中选出了几种增强效果较好的样品，为壳聚糖的进一步改性奠定了基础。

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