When a DWR coating is applied to a surface, it increases the liquid contact angle of the garment,greater than 90 degree . This “suspends” the liquids, forming them into round droplets.The round shape limits the amount of surface area the droplet comes in contact with, allowing the droplet to bead and roll off the surface easily.
DWR diminish in performance due to a number of factors—dirt, body oils, abrasion and repeated launderings. Often they can be revived by a washing and a few minutes of tumbling in a clothes dryer set on low or medium heat. With heavily used garments, DWRs eventually need to be reapplied by a spray-on or wash-in product.Maintaining DWR
Why Do Clothes Smell?
Sweat is the leading cause of smell in our clothes. Interestingly, sweat itself has no smell but it’s the bacteria feeding on it that produces.
Turms products are coated with silver nano-particles which in the presence of sweat releases an infinite supply of positively charged silver ions across fabric. So during sweating more & more silver ions are produced which penetrate the surface of negatively charged bacteria and disrupt the cell division. Silver ions prevent the bacteria from breeding and prevent the t-shirt from smelling permanently for long periods of time.