According to a press release by SCA (Stockholm, Sweden) this month (Sept. 2018), the new sizing additive it has added to its offering could possibly work to replace the addition of commercial sizing agents in paper production. The resulting paper exhibited 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.

Product is comprised of 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. Development work has been a collaboration between SCA R&D Center and the Kraftliner business.