CJ Biomaterials and Dongsung Chemical have introduced a polyhydroxyalkanoate (PHA) based hotmelt adhesive to the packaging sector, launching commercially in the United States. Developed as a bio-based substitute for traditional petroleum-derived adhesives, the formulation utilises CJ's amorphous PHA technology to provide the heat resistance and bonding strength required for paper and board packaging applications.
While adhesives constitute a small percentage of total package weight, standard synthetic hotmelts present operational challenges during mechanical recycling and composting. Conventional hotmelts frequently form tacky residues during paper repulping or contaminate wash-water streams in rigid plastics recovery. Replacing fossil-based polymers with PHA allows converters to lower embedded carbon while mitigating end-of-life contamination. Because PHA breaks down naturally without leaving microplastic residues, it addresses growing commercial demand for fully compostable packaging formats.
For UK packaging converters and Turkish recyclers, advances in adhesive formulation carry clear operational implications. UK converters operating under Extended Producer Responsibility (EPR) regulations and the Plastic Packaging Tax (PPT) must ensure every component of a package supports circularity. Non-recyclable adhesives can penalise packaging designs under modulated fee structures. In Türkiye, where re-processors manage significant volumes of imported and domestic recovered paper and plastics, adhesives that wash off easily or degrade cleanly boost processing yields and lower effluent treatment costs. Furthermore, Turkish packaging exporters serving European markets can leverage lower Scope 3 emissions when using bio-based assembly materials.
Practical Takeaway: Packaging technical teams should audit existing adhesive specifications across automated lines. Evaluating bio-based or wash-off adhesives now will help converters align with upcoming UK and EU design-for-recycling mandates before compliance thresholds tighten.
