German fiber technology specialist Advansa has recently launched Adva MegaBond, the next generation in binding available for the nonwovens industry, particularly wetlaid and drylaid substrates. The binder fiber is supplied in amorphous state and can be used in many combinations with other fibers to create a strong, self-reinforcing network which is 100% recyclable.
 

The preferred choice for a functional and strong network is regular polyester fiber. A broad range of nonwovens with engineered properties can be created, including thermoformable composites
consisting of a single polymer. The processed combination of crystalline and amorphous fiber results in self-reinforcing structures which is triggered by thermal treatment. The end product can be molded into any shape to fit  technical needs. The technology can replace, for example, injection molding. It can also be used for applications such as fine-pored filters. A most simple composition of a functional layer in a complex article, or even the whole final article offers great advantages in recyclability. 

Advansa supplies fibers with very low linear density, which – so far – are rarely available on the market: the fibre offering starts with a fine range at 1.6dtex including a shortcut version for wetlaid
processes and crimped staple fibers for dry laid processing. In addition, coarser versions can be produced including post consumer recycled feedstock and black pigmented materials on request.


ADVA MegaBond is also suitable for food contact (FDA, BfR, EU 10/2011 compliant), hygiene and medical applications. For thermal bonding, a broad process window between 140°C and more than 220°C can be used, to either form dense, strong and very thermostable structures, or more open, porous products.

Polyester is known as the most suitable material for pelletizing, re-melting and extrusion into new fibers. ADVANSA takes advantage of this opportunity for more than one decade. With the circular
economy goals defined in the EU, the “design for recycling” topic will gain more and more importance in many sectors. ADVA® MegaBond is a German made offering to rethink recipes and
concept into better recyclable options.