Teijin launches new three-layer polyester fabric to combat sweat
18/06/2012
The new polyester fabric has a three-layer structure consisting of an inner, fully hydrophobic layer of moisture-repellant polyester fibres, a middle moisture-absorption layer and an outer moisture-diffusion layer.
Once sweat has been absorbed by the middle layer, the inner hydrophobic layer keeps moisture from returning to the skin to prevent the wearer from becoming chilled, and to prevent the fabric from sticking to the skin even when the wearer is perspiring heavily. A capillary-type pump action in the three-layer structure absorbs and diffuses sweat to promote fast drying. This pump action is an effect of how the fabric is woven or knitted, Teijin has said.
Fibres in the fabric are water-repellant by virtue of an agent in the raw yarn rather than through a surface-treatment applied to the finished fabric, to maintain high performance even after repeated washing, Teijin said.
Teijin Fibers has told sportstextiles.com that, although this special agent is one that it has acquired from a supplier rather than develop it itself. “But what really makes difference is the technology to incorporate the water-repellent agent into the raw yarn, which is said to be technically difficult, rather than the selection of the agent itself,” the company said. “Agents added at the fabric or fibre finishing stage can gradually lose their effects.”
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