The diagram below shows the process of plastic bottle production.

The diagram demonstrates how to manufacture a plastic

bottle

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.

Overall

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, there are distinct six main steps to make a plastic

bottle

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–melting, moulding, needling,

air

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injecting,

frame

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removing and finishing. Looking at the diagram more closely, one can clearly see that the heating process is necessary in the first phase. Melting of preform should be processed in the extruder machine with the heat until it melts. After that, a mould has to be set and closed perfectly to make a

frame

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for the

bottle

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. If the

frame

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is closed thoroughly, a needle must be inserted into the lid of the

bottle

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. And

then

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, it is time to inject the pressurized

air

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into the

bottle

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. When the

air

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is fully filled, the preform turns to the shape of a

bottle

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and makes it larger, the

frame

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should be removed. Now, the whole process of producing a plastic

bottle

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is finished. In short, the whole process can be summarized; heating of preform, making the mold, injecting the

air

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, and removing the mold.