SCA develops new sizing additive to improve production of water resistant paper

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SCA develops new sizing additive to improve production of water resistant paper

September 14, 2018 - 08:59

SUNDSVALL, Sweden, Sept. 14, 2018 (Press Release) -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.