Textile dyes loaded chitosan nanoparticles: Characterization, biocompatibility and staining capacity

Textile dyeing is a hazardous and toxic process. While traditionally it has been managed through effluent treatment, new approaches focused upon improving the process are gaining relevance. In this work, we sought to obtain, for first time, an eco-friendly chitosan-nanoparticle based textile method. To that end, yellow everzol navy blue itosperse loaded chitosan nanoparticles were produced their capacity dye textiles cytotoxicity towards human skin cells evaluated. The results obtained showed was possible obtain nanoencapsulated dyes ionic gelation with average entrapment efficacy above 90 %. Nanoparticles presented positive surface charge sizes between 190 800 nm NPs occurring via interactions while formed hydrogen bonds. Furthermore, no HaCat staining percentages reaching 17.60 % viscose/wool blend.