Colour is crucial to add shelf-appeal, create or maintain brand identity, or signal a function. Increasingly for many applications, colours must not hinder recyclability. Colour masterbatches offer a wide selection to meet these needs. Consistently obtaining the desired colour in materials with recycled content can be a challenge, however, due to the potential for colour variability in the resin, particularly in post-consumer recycled (PCR) materials.

New colorants, equipment and measuring technologies address variability and sortability. PCR carriers for colour masterbatches have also been launched.

Read the full article