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Blister box in the production process a little attention will form a variety of defects
- Dec 22, 2017 -

Blister in the production process in the following main need to pay attention:

Crystallization point: In the production process of thick plastic sheet, due to the tiny dust in the air, there is a kind of transparent defect on the heated plastic material, especially in the process of producing the transparent plastic sheet, Large, too much, as defective.


Scratches: Blister packaging products in Yangrui, especially transparent blister with scratches on the traces, if the marks are too long, too large, the blister has become a defective, can not be used for higher packaging.

blister lunch box

Bubbles: In the production process of blister sheet, because of the heated plastic box containing air, so that the production of sheet with bubbles in the product, especially in the transparent plastic sheet production process, this bubble is too large, Too much time, as defective.


Pull line: blister box molding production produced some unwanted lines protruding, need to re-correct the mold and add additional pressure mold to handle. Pull line is too large, was seen as defective, can not be used for higher plastic packaging, but in the area of spare parts turnover tray, as long as the drawing line is divided into one, does not affect Li Qin Fen, should be regarded as qualified products. Pull the line, also known as: Rachoo, cramps and so on.


Water ripples: in the production process of plastic sheeting, due to different materials and processing technology, so that the production of sheet surface water surface corrugated, especially in the transparent plastic sheet production process, this water ripple is too large , Too much, as defective. Under normal circumstances, the thicker the sheet, the more obvious the water ripples. Qualified PET material has few water ripples, but most of the PVCs have the appearance of water ripples.