The innovation concerns a sizing additive that SCA has developed to improve the production of water resistant, hydrophobic, paper. The additive can be produced in a green sustainable manner.
The new sizing additive can completely replace the addition of commercial sizing agents in the paper production. The resulting paper exhibit improved water resistance and UV-light stability.
Since the depolymerized lignin can be produced from byproducts from a pulp mill the resulting sizing additive is sustainable and cost effective.
More about the new product
The product comprises a blend of depolymerized lignin and cationic polysaccharide which is added to a lignocellulosic pulp suspension containing aluminum salt at the wet end of the paper manufacturing process. The development work has been a collaboration between SCA R&D Centre and the Kraftliner business.