Henkel has developed a cold seal coating designed for barrier-coated paper packaging, aimed at supporting recyclable paper structures.
The product, Loctite Liofol CS 7106 RE, is formulated for use on barrier-coated paper and enables sealing without heat exposure. According to the company, this allows manufacturers to produce recyclable packaging structures while maintaining compatibility with mechanical paper recycling.
The solution is designed for applications including snack and confectionery packaging, as well as collection cards and other secondary packaging that previously required plastic structures. It forms part of Henkel’s RE range, a portfolio of adhesives and coatings developed for recycling-compatible packaging design.
Henkel says the coating provides a permanent seal with strong adhesion and can be applied at high line speeds. The press-ready formulation is designed to work across different paper grammages and maintain stable performance during processing. The company also says the coating tolerates typical migrants from paper substrates, reducing the risk of performance fluctuations.
Recycling compatibility has been verified by an accredited certification institute, with the coating considered compatible with mechanical paper recycling.
Cold seal technology is commonly used in packaging segments where products are sensitive to heat, such as snacks, ice cream and confectionery. Because sealing is achieved without thermal exposure, the process helps preserve product quality and aroma while reducing stress on the packaging material.
Cagri Turkmen, market strategy manager flexible packaging at Henkel, said, “With Loctite Liofol CS 7106 RE, Henkel delivers attested Cold Seal performance on barrier-coated paper and, consequently, packaging solutions that meet the requirements for a circular economy and the high demands for product safety, and process stability.”
The development comes as paper-based packaging gains attention as an alternative to plastic structures, driven by regulatory requirements on recyclability and increased demand for recyclable packaging. Frameworks such as the EU Packaging and Packaging Waste Regulation (PPWR) are increasing the focus on recyclable packaging structures. According to a GlobalData industry report cited by the company, more than 70 per cent of global consumers consider recyclable packaging essential or desirable.
