Dynamic thermo-physiological comfort of a recycled Denimnano-layered fabric

This study investigated the dynamic thermo-physiological comfort of a recycled Denim nano-layered fabric. The top layer of the Multilayered Denim fabric was recycled Denim. The semi-permeable nanomembrane was chosen due to its high- water vapour permeability and waterproof properties. A nonwoven fabric was added to the garment as an extra layer to provide shape and support and avoid direct contact with the skin. A double-faced adhesive grid was used to ensure bonding between the various layers. The breathability of used fabrics was studied based on the air permeability, water vapour resistance, and relative permeability using the Permetest according to the ISO 11092 standard. To study the dynamic of the thermo-physiological comfort, the dynamic cooling heat flow during evaporation was visualised. Results showed adding a semi-permeable nanolayer decreased the air permeability by about 16% compared to a simple Denim fabric. Conversely, the water vapour permeability was enhanced to 48% when the nanolayer foil was added. It was found that a multilayered Denim fabric had a better cooling feeling at the skin’s first contact stage and equilibrium compared to a simple fabric.