Generally, there are two methodologies of modern blow moulding available for the Polyethylene terephthalate or PET bottle designing. These include-
- Extrusion stretch blow molding
- Injection stretch blow moulding
Both these methods profusely help PET Preform Bottle Industries. However, injection technique is extremely easy to control having lesser waste and drawbacks, and is equipped with excellent efficiency than the extrusion method.
In the contemporary times, varied PET bottle designing formats are in huge demand, highly cost-effective, quality-oriented, and reckoned across the globe. One of the two techniques includes the pressure bottle like filling the bottles of carbonated liquids and second one includes non-pressure bottle such as oil, tea and filling liquid bottles. With the never-before advancement in the scale of production and technology, it has been observed that Pet Preform Injection moulds industry in India has taken an all-new stride.
The tools and equipments production capacity has also witnessed a rapid progress in comparison to prior track record of manufacturing. It is also an established fact that now the production capacity lies between thousands pieces per hour to ten thousands per hour. The best progression in this field is that the erstwhile manual work has entirely been replaced by the modern computer systems. This has drastically lowered down all the flaws and drawbacks arising in the procedure and results in enhanced constancy and suitableness.
The procedure of PET molding deeply affects different factors like environment and surroundings by way of its blowing system. Depending upon the highly positive and negative features, polyethylene terephthalate preform material and moulding process must be chosen with utmost attention and absolute care. As per experimental outcomes, the similar viscosity of PET preform shaping material can require the specialized technology of blow molding. The basic requirement to preform the stuff is to make them absolutely pure and fully transparent. The material must not contain any dross and there must be no different colour nimbus in the area of injection point.