Henkel launches recyclable cold seal coating for barrier-coated paper

Henkel has introduced Loctite Liofol CS 7106 RE, the first cold seal coating in the Henkel portfolio to be formulated for barrier-coated paper. The solution was developed to meet regulatory requirements on packaging recyclability, such as the EU’s Packaging and Packaging Waste Regulation (PPWR). 

Loctite Liofol CS 7106 RE is said to ensure process-reliable production of recyclable packaging structures, creating a secure seal without heat exposure. 

The coating can be applied to the snack, ice cream, and confectionery segments and to collection cards or other secondary packaging that previously required plastic structures. The development is driven by the trend toward paperization, as paper-based packaging solutions gain traction as an alternative to plastic. 

Cagri Turkmen, market strategy manager, Flexible Packaging at Henkel, says: “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.”

Recycling-compatible paper structures

Loctite Liofol CS 7106 RE is part of Henkel’s RE range. This product family of adhesives and coatings is made for recycling-compatible packaging design that verifiably supports the reutilization of materials.

According to Henkel, the solution provides a “strong, permanent seal with exceptional adhesion properties and consistently high-quality application, even at high line speeds.” The product has been verified as compatible with mechanical paper recycling.

The cold seal coating is designed to be press-ready, ensures stable application on different paper grammages, and improves ageing properties. It is also said to tolerate typical migrants from paper substrates, preventing process-related fluctuations in performance. 

“In the context of the PPWR, recyclable paper packaging is increasingly gaining in strategic importance. Loctite Liofol CS 7106 RE directly contributes to this strategy, as this Cold Seal coating has been proven not to impair the recyclability of barrier-coated paper structures,” says Henkel.

“For brand owners and packaging manufacturers, this complete material recirculation creates a solid basis for meeting future regulatory requirements and implementing high-performance, ready-to-market packaging designs.”