Inj. Stretch Blow Moulding
Injection Stretch Blow Moulding (ISBM) is the ideal process for producing high quality glass clear PET containers. It has the ability to produce very accurate neck finishes together with light weight solutions due to the superior mechanical properties of this technology.
ISBM is particularly suited to the beverage and agrochemical markets as well as personal care.
| Typical materials used: |
| PET |
| Advantages: |
| High Clarity, Superior Mechanical Strength, Good Gas & Solvent Barrier Properties |
| Main uses: |
| Carbonated and soft drink bottles, cooking oil containers, agrochemical containers, health and oral hygiene products, bathroom and toiletry products, and a number of other food applications. |
| Capacity of container: |
| 50ml to 5litres |
| Main markets: |
| Personal care, agrochemicals, general chemicals, food & beverages and pharmaceutical | |
Process description
Polymer is injected into a preform mould, which consists of a fully finished neck and a tube, which will later form the body of the product. The preform is conditioned with zoned heaters to the optimum temperature for stretching. The blow mould is positioned around the preform body and a stretch mould pin is inserted which stretches the preform to the finished product length. High-pressure air then inflates it to full size and shape within the mould. The finished product is then cooled and discharged.