Fibrillated Cellulose applied at processed solids

Important results from the project

** Denna text är maskinöversatt ** During the project, UMV Coating Systems has developed two unique methods for applying MFC MicroFibrilleradCellulosa at a high dry content. An indirect method and a direct method. The indirect method can also be used for the application of MFC/Graphene blends to create sustainable energy storage surfaces. Technology that has been developed is the subject of a patent application. Dryness >5% has been reached. Achieving the goal of applying MFC at its manufacturing dry content remains.

Expected long term effects

** Denna text är maskinöversatt ** So far, speeds up to 300 m/min and layers of 2 gsm MFC have been achieved at a dry content >5%. The project work shows that the manufacturing solids content gives two problems to solve. The transition from storage tank to pump, where there are tendencies for air to follow. The anchoring of the MFC to the substrate. The developed technology has made it possible to produce energy storage surfaces in a project that is run in parallel together with MIUN, Mittuniverstietet.

Approach and implementation

** Denna text är maskinöversatt ** A key to being able to apply MFC at high solids is to keep the pulp under shear. First, a technique was constructed that can take over from the pump and deliver the media to the substrate or indirect transfer element in a well-distributed manner under shear. The technology was improved in steps by several pilot trials and finally utilized for application of MFC on non treated paper- and board webs.