Precautions for adding wet strength agents in papermaking
- 2025-08-08
- 6
- Yinq (Guang Dong) Imp & Exp Co., Ltd.
1、 The function of wet strength agent
PAE wet strength agent is a new generation of non-toxic and odorless chemicals commonly used in the papermaking, which can significantly improve the dry and wet strength of paper. It is suitable for the production of various types of paper with wet resistance requirements. Due to its characteristics of retention and filtration assistance, it can also be used as a retention and drainage aid in the papermaking process. Therefore, PAE wet strength agent is an excellent additive with wide applications and broad prospects.
2、 Precautions for adding wet strength agent
The dosage of wet strength agent should be appropriate. Excessive dosing can lead to poor pulp flowability, decrease in paper hardness and even affect the processability of the paper; If the dosage is too less, it will not be able to exert the effect of the wet resistance and achieve the expected effect. Therefore, when adding wet strength agents, the amount should be carefully controlled.
The sequence of adding wet strength agents should be correct. Usually, the wet strength agent should be dosed before starch, white water, etc., so as to fully exert its effect. If the wet strength agent is dosed after other additives, unnecessary chemical reactions may occur, which may affect the effectiveness of the wet strength resin.
The quality of wet strength agent is important. The WSR used in the papermaking process should be a product with quality certification and or from a reliable company. Otherwise, if low-quality wet strength agent is used, it may actually affect the physical properties of the paper, causing unnecessary trouble and costs.
4. The dilution of the wet strength agent should be correct. Some wet strength agents require dilution before use, and should be diluted correctly according to the instructions in the manual, otherwise it may affect the effectiveness of the wet resistant agent and lead to economic losses.
5. Attention should be paid to the storage of wet strength agent. Wet strength agents should be stored in a cool, dry place and protect from light and heat. Do not mix with other chemicals during storage to avoid accidents.