Paper is a recyclable, biologically degradable material that can be produced by means of energy efficient, ecofriendly sustainable processes. As the steadily increasing carbon-storing wood fiber resources used for papermaking are renewable as opposed to fossilbased plastics, it’s obvious that paper-based materials will be increasingly important for a sustainable future free from utilization of fossil-based materials. This is the reason for making efforts in research and development, with the objective to optimize physical properties such as dry and wet strength of wood fiber based materials to match the expectations for packaging materials as paperbags.