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Double-bubble shell:
It is relative in terms of single-bubble shell, the broad sense, refers to all be able to independently form a container product and paper packaging, including blister cards, including folded foam shell, folded foam shell, bottom set of bubbles shell, semi-foam shell and so on. In a narrow sense, only refers to two separate, can use high-frequency machine and ultrasound machine edge of the bubble shell (a very small number also used chemical solvent edge). It features products and paper cards can be sealed in two layers of bubble shell, the shell of this foam used for supermarket shelves, the general use of transparent PVC, PET, and PETG material..
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| PVC-standing double-bubble shell, using high-frequency heat-sealing machine packaging, in the back of the foam shell designed for standing at the bottom of the multivesicular body. Therefore, the product can either hang on the shelf can also be placed at the counter where. |
PET double-bubble shell, using ultrasonic heat sealing machine package, due to restrictions on technology ultrasonic machines can only be closed dot, it can not be completely sealed. However, this package, in ways which are environmentally friendly and cost less compared to PETG. |
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| PVC double blister packaging, the ordinary high-frequency heat-sealing machine. |
PETG clamshell packaging. PET blister usually can not use an ordinary high-frequency heat-sealing machine, the use of composite materials, PETG, not only to ensure the environmental nature of the material (equivalent to PVC case), but also using conventional high-frequency heat-sealing machine. |
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