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What is the quality of the plastic packaging box?
Jan 04, 2019

        Blister company to explain the requirements of plastic quality, pull wire: some undesired line protrusions produced during the production of plastic forming (not on the mold), need to re-modify the mold (reduce the height and increase the degree of gardening) and add extra The pressure mold (we call it the upper mold) to solve. When the cable is too large, it is regarded as a defective product and cannot be used for high-grade blister packaging. However, in the field of component turnover pallets, as long as the wires are arranged neatly and do not affect the function of use, they should be regarded as qualified products. The pull line is also called: lacing.


       Scratch: There are scratch marks on the blister finished product, especially the transparent blister. If the trace is too long and too large, the blister becomes a defective product and cannot be used for high-grade packaging.


      Crystal point: In the production process of blister sheet, due to the fine dust in the air, it falls on the heated plastic material, resulting in a transparent enamel, especially in the production process of transparent blister sheets. Too big, too much, is considered a defective product.


     Air bubbles: During the production process of the blister sheet, air is contained in the heated plastic material, so that the produced finished sheet has bubbles, especially in the production process of transparent blister sheet, the bubble is too large, When too much, it is considered a defective product.


     Water ripple: In the production process of blister sheet, due to different materials and processing techniques, the surface of the finished sheet produced has water surface ripples, especially in the production process of transparent blister sheet. When too much, it is considered a defective product. In general, the thicker the sheet, the more pronounced the water ripple. There are few water ripples in qualified PET materials, but most PVCs have water ripples.

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