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The effect of preform on bottle blowing process
- Jun 07, 2018 -

    The advantages and disadvantages of bottle preform largely depend on the advantages and disadvantages of PET materials. Materials that are easy to blow up and shape should be selected, and a reasonable molding process of bottle preform should be formulated.The experiments show that the same viscosity of PET material , the imported material can be easily blown into the bottl than our own material.And the same batch of bottle preform, production date is different, blow molding process may have a big difference.The quality of the prefrom determines the difficulty of the blow molding process. The requirements for the prefrom are purity, transparency, impurity free, uniform color, injection point length and surrounding halo