Coatings help to reduce the environmental impact of packaging material
This has led to renewed interest in paper-based packaging. In combination with suitable coatings, they can offer the required barrier and heat-seal functionality needed for many packaging applications.
Paramelt (Heerhugowaard, The Netherlands) provides two key platforms enabling the creation of high-performance packaging papers whilst maintaining the benefits of this highly attractive substrate:
Paraflex Nowax – Renewable vegetable-based coatingsPaper functionalised with Paramelt’s Paraflex Nowax coatings, yields equivalent barriers to polyethylene whilst remaining inherently biodegradable. These coatings are applied in the same way as wax-coatings, and can be used in a wide range of packaging applications. They offer a solution for all ‘end of life’ scenarios, be that landfill, littering, recycling or composting.
Aquaseal – Waterbased polyolefin dispersions of conventional extrusion-grade plasticsAlthough 10-12 grammes of plastic per square metre of paper is often enough to achieve heat seal and barrier performance, it is difficult to consistently apply such thin layers with extrusion techniques. A thinner, water-based coating, which can be applied using conventional coating and printing techniques, will inherently yield a lower overall MVTR but this is frequently sufficient for the target application. The heat-seal functionality remains, but more importantly, the packaging material remains fully repulpable and recyclable via existing waste streams using appropriate processes.
Next to these novel products to functionalise paper-based packaging, Paramelt also offers adhesive products for various applications:
• EXCELTA (PO-based) and PLASTOMELT (EVA- or EBA-based) hot melt adhesives for end-of-line packaging, tray forming and box closing applications.
• PLASTOFLEX pressure sensitive adhesives for the production of e-commerce bags, document envelopes, window bags and various other applications.
• MULTICOLLAC and LATYL water-based adhesives for labelling applications in the beverage and food industry.
• ENZIFLEX and LATYL water-based adhesives for paper and board converting.
These solutions will be on display at the Paramelt booth A02B in Hall 7 at interpack 2023 in Düsseldorf.www.paramelt.com