Preparation of Green Tea-Derived Cellulose Nanofibers and Deodorizing Performance of its Coated Fabrics

Abstract

  To investigate the effect of green tea derived cellulose nanofiber (CNF) coating on fabric, we studied the characteristics of green tea-derived CNF coating on cotton fabrics.

  The CNF used in this study were derived from leaves and stems of green tea and hardwood bleached kraft pulps. The CNF were prepared by two mechanical methods: the water jet method and the ball mill method. Commercial TEMPO-oxidized CNF were used for comparison. CNF suspensions were coated on cotton fabrics with a coater. Several properties of the CNF coated fabrics were thoroughly characterized. After the CNF coating of the fabrics, the air permeability decreased. The green tea-derived CNF-coated fabrics showed good deodorizing performance for ammonia, which did not decrease after washing. The deodorizing performance seems to be caused not only by physical adsorption to pores in the CNF network, but by the chemical components of green tea.