Thermal yarn using germanium fiber by adding germanium composite nano powder when spinning. When wearing on, it can emit far infrared ray, release negative ions, and having antibacterial effect, which can be widely used in underwear, leggings, knee pads, socks, etc.

The Germanium composite Nano powder is a kind of multifunctional composite thermal powder, it contains germanium, zinc, ceramic, tourmaline and other variety of substances that are beneficial to humans. The composite powder has excellent ability to launch far infrared ray, can release a large number of negative ions, thus has healthcare benefits. The existence of zinc makes the fiber also has good antibacterial effect.

Germanium fiber far infrared rate is more than 88% normal thermal emittance, temperature rise 1.8 ℃ more, the heating effect is remarkable. Therefore it can effectively improve blood circulation, and with dry, fluffy, warm sense, It is the best choice of warm care products. the negative ion emission rate is more than 600 / cm³, can improve human immunity, promote physical health.