Two-thirds of plastic waste comes from packaging.

Thanks to Maris co-rotating twin-screw extruders, LDPE or PP base packaging can be recycled to produce films again.



Furthermore, by equipping the extruder with one or more side-feeders, it is possible to add mineral fillers/additives to improve the material properties. In case the material is of post-consumer origin, the extruder is equipped with an automatic screen-changer to eliminate the contaminations.

Very often the placing on the market of recycled HDPE is made more difficult by the contamination of PP.

Thanks to Maris co-rotating twin-screw extruders, it is possible to overcome this problem by processing and adding, in different percentages depending on the level of contamination, a polymeric compatibilizer that significantly improve the mechanical performance of the material.

Cables to…cables!

Thanks to Maris co-rotating twin-screw extruders, the processing scraps of PVC cable sheaths, can be recovered, recycled and reintroduced into the production cycle.

To grant a material free from contaminants (wood, metals, etc.) our extruders are generally equipped with (semi) -automatic screen-changer. It is also possible to add mineral fillers / additives to improve the properties of the material or carbon black to change its color.

Thanks to Maris co-rotating twin-screw extruders, it is possible to recover PVC / fitted carpet processing wastes, recycling and reintroducing them into the production cycle.

By equipping the extruder with one or more side feeders, it is also possible to add mineral fillers / additives to improve the properties of the material and use it to produce a carpet layer.

Bottles to…bottles!

Thanks to Maris co-rotating twin-screw extruders, PET bottles can be recycled to produce 100%-green new ones.

In order to preserve the mechanical properties of the material, our extruders are equipped with special high-vacuum pumps able to degas the material in two points and impeding the moisture to degrade the PET polymeric chains.

By equipping the extruder with one or more side feeders, it is also possible to add mineral fillers to improve the material properties and use it in different applications.

Recycling of crosslinked foams is possible!

The Maris Technological Center has recently designed and tested a new process for the recycling of post-industrial crosslinked foam, in order to recover processing waste and reuse it in the same production cycle.

In order to convert the material back into a plastic polymer, it is necessary to break the crosslinks between chains as selectively as possible, taking care not to degrade the polymer.

The physical characteristics and the very low bulk density of this material make it necessary to use a forced feeder to facilitate the introduction of the material inside the extruder.

Ink reduction

Maris Technological Center has recently designed and tested a new process for removing ink printed on packaging.

In order to extract high percentages of ink it is necessary to equip the extruder with three different degassing points and adopt a dedicated machine configuration for this particular process.

Thanks to this innovative process, it is possible to obtain a compact material, without porosity and with a low odor level.

Odors reduction

The Maris Technological Center has recently designed and tested a new process for the reduction of odors within polymers having post-consumer origins.

The materials that can be processed can be the most varied; the table shows two examples of HDPE coming from bottles for detergents and tanks for fuel. In order to extract effectively the odor contribution, it is necessary to equip the extruder with two different degassing points.

Besides the addition of particular additives for odor reduction, Maris has devised a special stripping system, thanks to the injection of water along the odor-reduction process.

Thanks to this innovative process it is possible to obtain a material with odor values of a few ppm and therefore to be able to give a new life to these materials.