What Is Double Bubble Shell Packaging?

Double bubble shell packaging refers to a packaging form in which two bubble shells are used to package paper cards and products together. Its characteristic is that it requires a high-frequency machine to seal the edges of the double bubble shell, which is inefficient and has high packaging costs. However, the edges are neat and beautiful, and the product appearance is high-end.

The issue to be noted is that:

1. Only PVC and PETG film can be used for the bubble shell, otherwise it cannot be heat sealed or the heat sealing effect is poor;

2. The quality of the edge of the double bubble shell is determined by the quality of the high-frequency mold. Recently, high-frequency machines that can heat seal PET have emerged, but the cost is high and the process is not yet mature.