Pressure-sensitive, heat-transfer, glue-on, and other post-mold processes are not the same as in-mould labelling. Before the plastic container resin is injected or blasted into the mould in IML, the in-mold label is put there. The label becomes an integral, non-removable part of the container when the resin flows into the mould and embeds itself in the container's wall. There are no post-mold processes or tools used. Laundry detergent bottles, ice cream and cream cheese containers, and motor oil bottles are a few examples of in-mold labelled containers.
IMD and IML are conceptually identical, but IMD's "labels" are more durable and its in-mold decorated pieces are far more valuable and made for hard outdoor usage. Such items are produced in numerous steps. The original "label" may be made of 10- or 20-mil clear polycarbonate and would first undergo a UV ink reverse print. After that, the printed film is thermoformed and diecut into the final part's shape. The final element is created by backfilling the pre-formed insert with resin in an injection mould. Cellphone faceplates, car dashboards, and washing machine control panels are a few examples of IMD goods.
Both the blow mould (IML-B) and injection (IML-I) moulding processes call for inks and overcoats with exceptional heat resistance for the in-mold labelling process. The IML-I method, where resin is injected at high pressure and temperature against a reverse printed label, is particularly demanding. The heated resin, which is poured behind the label into the mould cavity, has the potential to wash away conventional inks that are not sufficiently resistant to heat and chemicals. Know more at Orianaa
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