1. Water ripples
In the production process of blister sheets, due to different materials and processing techniques, the surface of the finished sheet has water ripples, especially in the production process of transparent blister sheets, the water ripples are too large, and when too much , regarded as defective. In general, the thicker the sheet, the more obvious the water ripples. Qualified PET materials rarely have water ripples, but most PVCs have water ripples.
2. Blister cutting
After blister forming, the plastic products are punched, and the large sheets are cut into individual products with a knife die. Also called cutting, cutting, die cutting, etc.
3. Folding
One of the blister packaging products is called card-inserted packaging. It is necessary to fold the three sides of the blister to the back with a folding machine, so that in the next packaging process, the paper card can be inserted into the folded edge to form a card-inserted packaging.
4. Pull wire
Some undesired line protrusions (not on the mold) produced during blister molding production, need to re-modify the mold (reduce the height and increase the roundness) and add an extra pressure mold (we call it the upper mold) to solve . When the pull wire is too large, it is regarded as a defective product and cannot be used for high-end blister packaging. However, in the field of spare parts turnover trays, as long as the pull wire is neatly arranged and does not affect the use function, it should be regarded as a qualified product. Pull line is also known as: pull hill, cramp and so on.
5. Scratches
There are scratches on the finished blister, especially the transparent blister. If the traces are too long or too large, the blister will become a defective product and cannot be used for high-end packaging.
6. Heat sealing
It is a blister packaging process. The paper card coated with blister oil and the blister are heat-sealed together with a sealing machine to form a blister package.
7. High frequency sealing
It is a blister packaging process, which uses a high frequency machine to generate high frequency, and glues the blister and the blister together to form a double blister package.
8. Ultrasonic sealing
It is a blister packaging process that uses an ultrasonic machine to generate ultrasonic waves to bond the blister and the blister together to form a double blister package. Unlike high-frequency sealing, ultrasonic waves can not only seal PVC, PETG materials, but also It can encapsulate PET material, and there is no electromagnetic damage to the encapsulated product, which is especially suitable for the encapsulation of electronic products.
