Safe Modes of PET Packaging

Thanks to the polymer chemists who formulated polyethylene terephthalate, PET in short, the techniques of packaging have undergone revolutionary changes for the items from the FMCG segment in particular. It was found to be an ideal medium to pack mineral or filtered water, aerated beverages including spirits and liquor, processed syrups, sauces, edible oils, personal care items like shampoo and lotions, detergents, insecticides and industrial oils etc.

Indeed, the FMCG industry found PET to be the most favourable since it was extremely light and unbreakable as compared to the conventional glass, ceramics, tin, and even aluminium. Further the design and size of the packaging too happened to have ample scope for attractive variations and above all, PET packaging meant optimum shelf life. However, environmentalists including the NGT (National Green Tribunal) raised doubts over the PET technology despite scientific studies proving that it is no more harmful and that it can be recycled.

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How hot runner system reduces cost?

A hot runner system is an integration of heated components used primarily in plastic injection molds. It helps inject molten plastic into the hollow cavities of the mold. Where as, a cold runner system is simply a channel in between the two halves of the mold, designed to carry plastic from the injection molding machine to the cavities.

Every time the mold opens up to eject the newly formed plastic parts, the runner material is ejected too. This result in the wastage of the plastic deployed. On the contrary, a hot runner system includes a heated manifold. The primary purpose of the heated manifold is to allocate the plastic entering in the mold to the various nozzles and measure the injection points in the cavities.   Read more