The challenge
While the ambition to use post-consumer glass jars was, on the surface, a noble idea, in practice it presented several challenges.
“We were aiming to reuse post-consumer jars,” says Rozvoněno co-founder Michael Schmidt. “However, we quickly encountered a problem with removing the labels.”
The issue? The commercial adhesive used for these labels was too strong, making it difficult, sometimes even impossible, to remove the label and adhesive without using environmentally harmful chemicals.
Rozvoněno decided it would be easier to create a circular model for their product if they modified their thinking around their packaging. In the end, they decided to use new jars instead of post-consumer ones with a label that could be easily removed to promote circularity. But where would they source this solution?
The solution
Rozvoněno, in collaboration with a graphic studio and printing houses worked to improve their design and find a more sustainable label approach. They partnered with Colognia Press Printing House, an expert in high-quality printing, to help them update their packaging.
“Our task was to find suitable printing technology for textured materials that would meet the quality requirements Rozvoněno expected,” said Dagmar Hleba Víchová from Colognia. “The label material needed to be durable, have good ink adhesion and make the text easy to read. This solution also needed to accommodate small print runs and multiple graphic designs.”
Colognia is a long-time partner of Avery Dennison. They discussed with Rozvoněno the paper label solutions that they were considering and validated their choice to use rCrush Barley. rCrush Barley is an uncoated, matte, smooth and wood-free printing paper that’s made from 15% barley processing by-product, such as that from the production of beer and whiskey. The remaining paper also contains 40% post-consumer recycled fibers and 45% virgin wood pulp. It was a sustainable solution that was combined with our wash-off adhesive.
