How to plastic packaging overcome the blister defects?

How plastic package to overcome the blister defects?
Pull: Plastic packaging products production lines produce some undue projections need to modify the mold and the mold additional pressure to resolve. Pull too large, is considered defective, high-grade plastic packaging can not be used, but in parts Pallets field, as long as the cable neatly, does not affect the use of functions, shall be considered qualified. Pull also known as: Laqiu, packaging design cramps.
Scratch: Plastic clamshell packaging packaging products is particularly transparent bubble with scratch marks on the shell, if trace is too long, too big, blister becomes defective, not for high-end packaging.
Crystallization point: blister packaging products in the production process, due to the fine dust in the air, out of the plastic case heated plastic material, resulting in a transparent defect, particularly in a transparent plastic sheet production process, such clear plastic box a defect too large, too much time, as defective.
Bubble: Blister packaging products in the production process, by heating the plastic material contained in the air, so that the production of the finished product with the air bubble plastic trays in the sheet, particularly in a transparent plastic sheet production process, this bubble is too large, is too large, as defective.
Water ripples: in plastic packaging products production process, because different materials and processing technology to enable the production of the finished corrugated sheet surface water, especially in a transparent plastic sheet plastic box production process, this water ripples too large , is too large, as defective. In general, the thicker the sheet, the more obvious the water ripples. Few qualified PET material water ripples, but most have a PVC water ripple phenomenon exists.

Advertisements