WHAT WE DO
We handhold the customer to select the perfect preform and work directly with the customer’s OEM suppliers to ensure an ideal fit and cost effective solution for the bottle/ jar.
WHO WE ARE
Shreeji Plastic started manufacturing preforms in the 2015s and has grown to become the largest manufacturer of high quality preforms required by various industries to feed their high performance filling lines.
MANUFACTURING PROCESS
PET bottles, containers and jars are typically made in a double-step process with neck dimensions of 19mm to 140mm. A two-step process produces products in two separate stages using 2 different machines. In this process, preforms are injection molded using an injection machine followed by re-heating and stretch-blowing on a blowing machine.
TWO-STAGE PROCESS
- Drying and dehumidifying PET materials.
- Using an injection machine to inject molten raw materials into a preform mould.
- Bringing molten PET down to ambient temperature.
- Preform processing by a finishing machine.
- Moving the preform to stretch blow moulding machines that are still heating up.
- Using metal blow moulds to inject high-pressure air into bottles.