1. Crystalline material, low hygroscopic, easy to break up, easy to decompose in long-term contact with hot metal.
2. Good liquidity, but large shrinkage range and shrinkage value, prone to shrinkage, indentation and deformation.
3. The cooling speed is fast, the casting system and the cooling system should dissipate heat slowly, and pay attention to the control of molding temperature
4. The thickness of the plastic wall must be uniform to avoid lack of glue and sharp corners to prevent stress concentration.
plastic packaging box
1, PVC –with nice anti-fouling ability , prices are relatively low.
Mostly used in Daily used goods
2, PET –high transparency & glossiness,beautiful appearance, strong figure
Mostly use in products that required high environmental protection products
3, PP —good toughness,eco-friendly. Consist smooth PP. frosted PP,twill PP
Mostly use in baby products & stationery products package