AQUEOUS COATING COMPOSITIONS FOR USE IN SURFACE TREATMENT OF CELLULOSIC SUBSTRATES

摘要

The present invention relates with the application of novel coating compositions, containing chitosan (and its derivatives) and bacterial cellulose, for the improvement of the final properties of cellulosic based materials, like paper and textile materials. The process involves the preparation of homogeneous bacterial cellulose-chitosan blends and the surface treatment of cellulosic substrates with these blends. The surface treatments described improve substantially the surface, mechanical, optical, barrier, anti-microbial properties and printability of the cellulosic substrates.