Solenis and HEIDELBERG are advancing the development of a new process for applying barrier coatings for paper packaging directly in the printing process.
Sept. 25, 2025 - Specialty chemicals producer Solenis is collaborating with Heidelberger Druckmaschinen AG (HEIDELBERG) to advance a more cost-effective way of integrating barrier coatings for paper packaging directly within the existing flexographic printing process.
Barrier coatings are used to repel hot and cold liquids, oils, greases, and water vapor in paper packaging.
With this innovation, packaging producers can use the HEIDELBERG portfolio of flexographic machines to print-apply Solenis' barrier coatings. This expands the possibilities for flat sheet paper and inline web-fed flexo applications with improved product performance and better production efficiency.
"Our collaboration with HEIDELBERG pushes the boundary of what's possible for packaging manufacturers," said William Kuecker, Senior Director of Strategic Marketing at Solenis. "With this combination of cutting-edge printing technology and innovative, high-performance specialty coatings, packaging manufacturers can enhance operational efficiency and product performance while meeting the rising demand for sustainable products and processes."
Solenis' specialized print-applied coatings include barrier coatings for board material, flexible packaging and cupstock production, as well as anti-slip technical coatings for industrial, shipping and container applications.
For fresh food and e-commerce corrugated packaging, barrier coatings can be print-applied to avoid the use of traditional polyethylene (PE) lamination and paraffin wax, making the material easier to recycle.
For cupstock production, flood-coating barrier protection on cold and hot cups can take place on current equipment and eliminates the need for PE lamination to improve efficiency. For a registered print approach, Solenis' patented heat-sealing coating can be applied easily on conventional cup converting lines to reduce materials and lower costs.
Solenis is a leading global provider of water and hygiene solutions. The company’s product portfolio includes a broad array of water treatment chemistries, process aids, functional additives, cleaners, disinfectants, and state-of-the-art monitoring, control and delivery systems.
SOURCE: Solenis