Efficient conversion of woven feed bags to recycled polypropylene

Woven polypropylene (PP) feed bags are a common type of packaging material for animal feeds and other agricultural products due to their strong, durable, and lightweight features. These packaging materials are indeed one of the applications of PP woven bags. Recycling post-consumer waste and post-industrial production scraps is an important way to reduce waste, conserve resources, and save various costs.

In this article, POLYSTAR will mention how to recycle both types of woven polypropylene feed bag wastes along with suitable plastic pelletizers to produce highly reusable recycled PP plastic pellets.

Benefits of recycling woven polypropylene feed bags

- Reduces waste and pollution

- Conserves resources by generating recycled PP plastics

- Saves energy compared to manufacturing virgin polymers

- Creates a circular economy by reusing plastics

How to Recycle Woven Polypropylene Feed Bags?

Post-industrial factory production scraps and post-consumer waste of woven polypropylene feed bags are the two valuable sources of recycling and generating recycled PP polymer.

1. Post-industrial production scraps of woven polypropylene feed bags

During the production process of PP woven feed bags, there are several types of waste are generated due to manufacturing defects or errors from plastic tape lines, circular looms, and printers. After recycling properly, these scraps can be reused in the same line as recycled polypropylene, since they have the same formula with the production content.

How to recycle post-industrial woven polypropylene feed bag scraps

The stiff texture of the PP woven feed bags (as with many other PP woven bags) requires manufacturers to use of a shredder to crush them before the recycling extruder. In the classic recycling methods, these steps are labor intensive and require more factory space and time.

Repro-One Shredder Integrated Plastic Pelletizer combines shredding, extrusion, and pelletizing steps into a single recycling machine. The integrated shredder, on the other hand, works at a low processing temperature to ensure minimal material degradation. The capability of this line to process a variety of unprinted and printed woven polypropylene bags and lumps is approved by many PP raffia and woven bag manufacturers.

2. Post-consumer waste of woven polypropylene feed bags

When woven polypropylene feed bags reach the end of their primary use, they unfortunately often end up in landfills and cause environmental problems. Indeed, the polypropylene polymer obtained from these post-consumer materials can be reused as recycled material in different plastic production areas.

How to recycle post-consumer woven polypropylene feed bag wastes

Post-consumer woven polypropylene feed bag wastes must be pre-crushed and pre-washed before the recycling step. POLYSTAR suggests Repro-Flex Plus two-stage plastic pelletizer to process this kind of post-consumer materials.

This one-step two-stage pelletizer provides an enhanced triple degassing unit and two filtration unit features along with stable feeding with a cutter compactor integrated, which all together ensures increasing reusability of the recycled polypropylene pellets.

In conclusion, recycling woven polypropylene feed bags properly helps to fulfill the recycled PP polymer needs of the industry. Moreover, it promotes sustainability and reduces plastic pollution while conserving resources, energy, and costs.

Contact POLYSTAR to learn more about our woven polypropylene recycling machine solutions.