Convergence of EPS and Nanocopper Masterbatch
Application for the salmon packaging industry
An active system that turns expanded polystyrene into an antimicrobial asset for Chilean salmon.
EPS in the food industry
“EPS is used across the food industry, and salmon packaging is one of its clearest applications.”
The Role of EPS in the Salmon Industry
EPS is widely used in the salmon industry thanks to its excellent thermal insulation and lightweight nature.
It is integrated across the Chilean salmon cold chain, from farming and processing plants to distribution hubs and international export.
Thermal insulation
Holds the critical temperature of salmon during transport from Puerto Montt to international markets.
Light and resistant
Maximizes pallet payload without compromising mechanical protection during logistics.
Food-grade hygiene
Stable, clean surfaces that comply with export sanitary standards.
Master Batch
Adding a nanocopper masterbatch turns this material into an active system with antimicrobial properties.
- Copper nanoparticles uniformly dispersed across the polymer matrix
- Controlled release of active ions on the packaging surface
- Continuous protection throughout the packaging lifespan
- No impact on the color, texture or mechanical properties
How it is produced
The masterbatch is integrated into the expanded polystyrene matrix, delivering a uniform distribution of copper nanoparticles throughout the cellular structure. This ensures functionality without compromising mechanical or thermal performance.
- 01
NanoAlsa Nanocopper
Particles < 90 nm with purity above 99.987%
- 02
Masterbatch
Carrier concentrate compatible with polystyrene
- 03
Extrusion & impregnation
Homogeneous distribution in the EPS cell structure
- 04
Validation
Ion-load control and microbiological testing
Main benefits of nanocopper masterbatch in EPS
Reduced bacterial load
On surfaces in direct contact with fresh salmon.
Extended shelf life
For fresh salmon during transit and retail display.
Less cross-contamination
Between pieces and batches during international shipping.
Technological differentiation
Of packaging versus competitors from other origins.
Value for the salmon industry
Raises sanitary standards without redesigning the plant
EPS with nanocopper raises sanitary standards without changing existing production processes.
Unlocks demanding export markets
Key for exports to markets where product safety and quality are critical factors.
Direct integration into current lines
Plugs into existing packaging lines while keeping costs competitive and adding value to the final product.
From passive packaging to active protection
Packaging is no longer a passive element. It becomes an active protection tool that improves the quality, safety and positioning of Chilean salmon in international markets.
NanoAlsa
Excellence in Nanotechnology
With more than 8 years of experience, NanoAlsa has established itself as the undisputed leader in the development and production of high-purity nanometals. Our patented processes and international certifications let us deliver unique solutions to the most demanding industries in the world.
Contacts
Evaluate with our team how to integrate nanocopper masterbatch into your EPS lines.
José Antonio Cox
CEO & Founder
Cristián Peña Goycoolea
Commercial Director