Laminated films are widely used in food packaging, agricultural packaging, and industrial wrapping. However, due to their mixed material structure such as PE, PP, PA, and aluminum layers, they are difficult to recycle using traditional systems.

To solve this challenge, advanced recycling technology and integrated systems are required. Purui Machinery provides professional laminated film recycling solutions designed to process complex multilayer waste efficiently and convert it into reusable plastic pellets.

What Are Laminated Films?

Composite films are made by combining multiple plastic layers or materials to improve barrier properties, strength, and shelf life. Common types include:

• PE/PP multilayer packaging film
• PE/PA food packaging film
• Aluminum-plastic laminated film
• Printed industrial wrapping film
• Stretch film with additives

Challenges in Composite Film Recycling:

• Multi-layer material bonding
• High contamination (ink, oil, food residue)
• Low bulk density and tangling issues
• Different melting points of materials
• Difficult washing and separation process

Purui Machinery Solution: ML Series Integrated Cutter Compactor Granulator

• Pre-Conditioning via High-Speed Cutter Compactor

The process eliminates the need for standalone pre-cutting machinery. Loose or rolled laminated films are fed via a conveyor belt directly into the Cutter Compactor. Inside, high-speed rotatory blades shred the incoming scrap while generating frictional heat. This heat shrinks the material just below its agglomerating point, densifying the film and ensuring a continuous, high-volume feeding rate directly into the extruder screw.

• Gentle Melting & Advanced Double-Zone Degassing

The compacted material passes smoothly into a specialized single-screw extruder. To combat the ink, adhesives, and moisture inherent in laminated flexible packaging, Purui integrates a high-efficiency double-zone vacuum degassing system. This removes low-molecular volatiles and trapped gasses, avoiding porosity in the final granules.

• Continuous Laser Filtration & Water-Ring Pelletizing

To ensure purity, the melted plastic passes through automated self-cleaning filters or advanced laser filter systems. Unlike traditional screen changers that force production shutdowns during filter swaps, the laser filter provides uninterrupted filtration for heavily contaminated post-industrial or post-consumer film. Finally, a die-face water-ring pelletizing unit cuts uniform, high-density granules.

Advantages of Purui’s Granulator Machine:

The plastic granulator machine system offers multiple benefits:

• Stable and continuous production
• High-quality and uniform plastic granules
• Low energy consumption design
• Strong impurity filtration capability
• Suitable for PE, PP, and mixed film materials
• Fully automatic operation available

FAQ:

Q1: Can laminated films be directly processed in a granulator machine?

A: Yes, after proper shredding and washing, composite films can be processed efficiently.

Q2: What materials are suitable?

A: PE, PP, and multilayer laminated films.

Q3: What is the final output?

A: High-quality plastic granules ready for reuse in manufacturing.

Q4: Is pre-sorting required?

A: Basic sorting is recommended, but the system can handle mixed film waste.

Why Choose Purui Machinery:

With over 25+ years of expertise and a footprint in over 100 countries, Purui Machinery continues to lead the way in plastic regeneration.

Purui Machinery is a high-tech enterprise specializing in the R&D and manufacturing of plastic recycling machinery. Its product portfolio includes plastic pelletizing lines, washing lines, and crushing equipment. Purui is dedicated to providing global customers with the most efficient, reliable, and intelligent plastic regeneration systems.

Contact Us to Get Your Customized Recycling Solution:

E-mail: [email protected]

Tel / Whatsapp: +8617701563079

Partner with Purui Machinery - Turn your plastic waste into premium-grade sustainable profits.