Tokyo-based Teijin Fibers Ltd. has developed a three-layer polyester fabric, with each layer
providing specific functions and all three working together to provide a capillary-like pump
action, to offer comfortable anti-perspiration performance in sportswear, casualwear and uniforms.
The fabric’s hydrophobic inner layer repels moisture and keeps perspiration away from the
wearer’s skin after it has been absorbed by the middle layer, while the outer layer diffuses the
moisture to provide quick drying. The inner layer’s repellency agent is integrated into the yarn
and withstands repeated laundering, Teijin reports.