Organosolv Lignin Barrier Paper Coatings from Waste Biomass Resources.

The aim of the study was to isolate lignin from organosolv, beech tree (), and Japanese knotweed (), to use it for paper surface and to replace part of the non-renewable product resources with bio-based ones. A total of nine coated samples with different lignin formulations and starch were compounded, prepared, and evaluated. The basic (grammage, thickness, specific density), mechanical (elongation at break, tensile, burst and tear indices), and barrier properties (contact angle, water penetration, water vapour permeability, kit test) of the coated papers were investigated.