Consumables
Versatile and functional: Hot-seal varnishes for top-notch requirements
Wednesday 30. April 2008 - Producers of specialties to serve the packaging manufacturers market have been confronted with a dynamic evolution which is still ongoing: Standard wide-spread materials such as aluminum are increasingly substituted by plastics and polymer composites. As a consequence manufacturers are confronted with innovative applications based on these new substrates and according demands of the end-consumer.
Illustrative examples include replacement of coated aluminum lids for yoghurt and other dairy products by hot-seal treated, optionally metallized paper/polyester foils or respective individually refined polyester monofoils, “fresh seal”- sealings with polyester foils for e.g. lettuce packaging,
Transparent lid foils for aluminum or APET trays.
Driven by the increasing demand for ever improved high-quality hot-seal systems, ACTEGA Rhenania has put a strong emphasis towards development of a broad range of products. As a result a variety of challenging demands can already be fulfilled by commercial solutions:
Dealing properties: “low seal” (“easy peel”), “medium seal”, “high seal”
(maximum of impermeability)
Material: PVC-free version
Processability: with/ without primer, on machines with low drying capacity, on
heat-sensitive substrates
Optical appearance: Transparent or opaque
However, state-of-the-art packaging has more to deliver: Consumers usually
demand the perfect fit or combination which translates to a well-balanced mix of
long-lasting protection, impermeability, easy-open features, plus a practical and
appealing design.
Aluminum foils do withstand extended thermal treatment at relatively high
temperatures and aluminum converters by default work with drying units at
respective heat capacities. On the other hand heat treatment of polymeric foils has
to be controlled due to the inherent properties of the substrate which is reflected by
adapted equipment of according manufacturers. This fact is of major importance
for custom-tailored development of the individual hot-seal coating.
ACTEGA Rhenanias product range of heat-seal specialties for aluminum foils has
been well known in the industry for decades. Based on this long-time experience
an extensive product portfolio for plastic foils serves current and future demands of
packaging converters accordingly.
Moreover, customers do profit from a competent technical field service which is
supported by a dedicated research staff. Next generation product developments
are already ongoing.