When we use two stage PET bottle blowing machine to produce bottles, what cause the transparent of PET bottle not good ?
1.The temperature of heater in the bottle making machine is too high;
2.The heating time is too long;
3.The high pressure air contains the water;
4.The PET preform itself is not transparent;
5.The design of PET preform is not reasonable;
6.The blowing ratio is too small.
Then how we can do when we meet this problem ?
Get down the temperature of heater;
Shortening heating time;
Using the air cooling dryer to remove the water in the air.
Improve the quality of Preform, Improve the drying degree of raw material;
Improve the size design of PET preform;
Reduce the preform diameter.
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