Method for producing paper, paperboard and cardboard having high dry strength

摘要

Process for the production of paper, board and cardboard having high dry strength by addition of an aqueous composition comprising a nanocellulose and at least one polymer selected from the group consisting of the anionic polymers and water-soluble cationic polymers, draining of the paper stock and drying of the paper products.

主权项

1. A process for the production of paper, board and cardboard having high dry strength,
the process comprising: metering into a paper stock an aqueous composition comprising a nanocellulose comprising cellulose fibers and a water-soluble cationic polymer comprising a polymer comprising a vinylamine unit; draining the paper stock to obtain paper product; and drying the paper product.