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The functions of paper chemical auxiliaries

发布时间: 2020-06-19

来源: en.lansenchem.com.cn

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The functions of paper chemical auxiliaries



In order to meet the needs of some special uses of paper, various types of non-fibrous additives are often mixed in the pulp or paper. According to its use, it can be roughly divided into the following categories:


① Wet strength agent. To increase the wet strength of paper sheets.


② Dry strength agent. To improve the paper's dry strength (ring crush compression resistance and bursting strength).


③ Retention agent. To reduce the loss of fillers and fine fibers during the papermaking process.


④ Defoamer. To eliminate foam in the papermaking process. .


⑤ Water resistance agent. It is mainly used in paper with higher requirements for water resistance.



Wendy Tang

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