Cationic starch is widely used in wet end as strengthening, retention and drainage agent.
阳离子淀粉被广泛应用于纸机湿部，起增强、助留、助滤作用。
The origin of charge in papermaking system and the up-to-date charge analysis techniques were introduced, and the importance of charge analysis for optimizing the PM wet-end was explained.
主要介绍了造纸系统中电荷的产生原因和目前电荷分析的方法，进而阐述了电荷分析对实现纸机湿部理想化运行的意义。
The origin of charge in papermaking system and the up-to-date charge analysis techniques were introduced, and the importance of charge analysis for optimizing the PM wet-end was explained.
主要介绍了造纸系统中电荷的产生原因和目前电荷分析的方法，进而阐述了电荷分析对实现纸机湿部理想化运行的意义。
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