In-mould labeling / In-mould decoration

In-mould labeling is a popular method of decorating injection molded parts for food packaging and consumer products. In-mould labeling is the use of paper or plastic labels during the manufacturing process by blow molding, injection molding, or thermoforming processes. The label serves as the integral part of the final product, which is then delivered as pre-decorated item. Combining the decoration process with the moulding process cuts the total cost, but can increase the manufacturing time.

mevisco supplies the leading packaging manufacturer in Europe with sophisticated image processing systems for in-mould labeling processes. In most cooling and freshness shelves you will find a variety of products whose high quality packaging is ensured with our testing methodologies.

Inspection functions
Checking the manufacturing quality of e.g. IML-injected cans, lids and buckets. The entire outer surface of rotationally symmetrical objects (e.g. tubs/buckets) can be inspected. Apart from quality evaluation of the labelling, the system also detects injection faults in the inner and outer areas:

  • Label position in relation to can / lid geometry with precision of up to 0.05 mm, also on round objects with freely rotated labels.
  • Label quality (blisters, creases, label join, spiral accuracy).
  • Type inspection (plausibility) based on differences in the print images or available product numbers.
  • Over and under-injections.

Special system features

  • mevisco CrossCheck checks whether a measurement project is unequivocal and can only be started with the allocated product.
  • Handling of shortest possible trigger times (< 50 ms).
  • Ejector control via integrated soft PLC.
  • Separate checking box, optionally with own drive.

Integration
Our image processing systems are open for handling systems from multiple vendors. Successful direct integration is available with the handling systems by: