At DS Smith, we’re exploring how seaweed fibers can be used as a raw material in paper and packaging products amid increasing demand for sustainable goods from customers and consumers alike

In an industry first, the move could see seaweed used across our packaging network as an alternative fiber source to wood. Following initial testing, we’re also exploring the potential of seaweed to play a significant role in the purge on plastics by acting as a barrier coating to replace petroleum-based packaging used to protect many foodstuffs.

We’re talking to a number of biotechnology companies, to explore the use of seaweed fibres in a range of packaging products such as cartons, paper wraps and cardboard trays.

As a leader in sustainability, our research into alternative raw material and fibre sources has the potential to be a real game changer for our customers and consumers who increasingly want products that are easy to recycle and have a minimal impact on the environment. Seaweed is one of the many alternative natural materials we’re closely looking at, and while most people probably associate it with the beach or as an ingredient in sushi, it could have some exciting applications for us to help create the next generation of sustainable paper and packaging solutions.

Given its wide range of uses, seaweed in manufacturing is a burgeoning market. The European seaweed industry alone is predicted to be worth almost £8 billion by 2030, generating some 115,000 jobs.

The seaweed project is part of our £100 million circular economy R&D program announced earlier this year. It’s work on natural fibres also includes other innovative natural materials such as straw, hemp, miscanthus and cotton, as well as from more unusual sources such as the daisy-flowered cup plant and agricultural waste like cocoa shells or bagasse – the pulp fiber left over after sugarcane is processed.


About the author: Thomas Ferge is paper and board development director at DS Smith.