What impact will the use of non-pure wood pulp paper have on VCI paper?

Using non-pure wood pulp paper to manufacture VCI paper will have a certain negative impact on its VCI effect. Pure wood pulp paper has a good fiber structure and hygroscopicity, which helps the uniform release and activity maintenance of rust inhibitors. However, if non-pure wood pulp paper is mixed with fillers or other fibers, it may affect the distribution of rust inhibitors, resulting in uneven release and thus reducing the rust prevention effect. In addition, non-pure wood pulp paper has poor moisture-proof performance and may not be able to effectively prevent moisture in the air from invading, reducing the stability and durability of rust inhibitors. Meanwhile, the mechanical strength and durability of non-pure wood pulp paper may also be inferior to those of pure wood pulp paper, and it is prone to damage during packaging, which affects the effectiveness of rust prevention protection. Therefore, to ensure the best VCI performance, it is recommended to use 100% pure wood pulp paper.