Labels are printed on films 50-100 microns thick, made of inexpensive polymeric materials - polypropylene, polystyrene, polyester, polyethylene. Less often paper, vinyl, oriented polypropylene are used for this purpose. Various printing methods are used to apply images and inscriptions to labels:
- offset or digital, if suitable for the base to be printed;
- flexography - a popular method;
- gravure and letterpress printing - advantageous when producing large batches of labels.
Since the materials are molded at high temperatures, heat-resistant inks are used to print fused labels.
Injection-molded IML label
The printed sheet is separated into individual elements on a rotary or flat press. Modern equipment designed for the production of IML labels allows you to get high quality products with a perfect edge.
The fused label is applied to the plastic product in the process of its molding, which can be carried out: blowing into a mold, hot or vacuum stamping, high-pressure molding. As a result of such technology IML-label forms a single unit with the container made of plastic. Complex mechanisms equipped with servo motors can be used for precise label positioning.