What are the reasons for the delamination of paper cake boxes?

The main reasons for the delamination of paper cake boxes are as follows:

Adhesive problem: Insufficient viscosity or coating amount of adhesive, unable to form sufficient bonding force, resulting in paper box delamination. In addition, if the adhesive does not match the material of the paper cake box, it may also affect the bonding effect.

Paper material issue: If the surface of the paper cake box is treated with special treatments such as film coating and polishing, these treatment layers may hinder the penetration of the adhesive, making it difficult for the adhesive to fully contact and bond the paper material, resulting in delamination.

Processing technology issue: In the production process of paper cake boxes, if the pressure after folding and gluing is insufficient or the pressure time is not long enough, it will also affect the bonding effect, making the paper box prone to delamination during subsequent use.

Storage conditions: If the paper cake box is stored in a humid environment for a long time, it may cause the adhesive to fail, thereby reducing the bonding strength and causing delamination problems.

In summary, the reasons for the delamination of paper cake boxes involve multiple aspects such as adhesive selection, paper material characteristics, processing technology, and storage conditions. To avoid delamination issues, it is necessary to start from these aspects to ensure the quality and stability of the paper cake box.