How thin is the world's thinnest fiber?

Posted at 01/29/2013 5:53 PM

TOKYO - Chemical fiber maker Toray Industries Inc. said Tuesday it has developed what it claims to be the world's thinnest fiber, measuring 150 nanometers in diameter.

Toray has used its own innovative nanofiber technology to halve the previous diameter limit of 300 nanometers, it said. A nanometer is one millionth of a millimeter.

The company has also developed a nanofiber with a Y-shaped cross-section in addition to those with triangle and polygonal cross-sections.

The innovative nanofibers are better at absorbing and retaining water and may be used in clothing, as well as for a wide range of filters and medical materials, Toray said.

==Kyodo