What are the common production processes of cosmetic plastic bottles? Chinese professional plastic bottle manufacturers explain:

1. First, make preforms from plastic material and then blow. At present, environmentally friendly plastics are commonly used in PET.


2. Warm up
The preform is irradiated by a high-temperature lamp to soften and soften the main part of the preform. In order to maintain the shape of the bottle mouth, the preform opening does not need to be heated, so a certain cooling device is needed to cool it.

3: blow molding

At this stage, the preform that has been preheated is placed in a mold that has been prepared and inflated therein to blow the preform into the required bottle.

Bottle blowing machines on the market are generally divided into fully automatic and semi-automatic. The automatic blow molding machine combines the two operations of bottle blowing through the operation of a robot, eliminating the need to manually place preheated preforms into the mold. Productivity has accelerated significantly, of course the price is higher than semi-automatic.

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