Patent ID: 8231968

Claim:
A natural tourmaline anion fiber consisting of: submicrometer tourmaline particles, a thermoplastic elastomer (TPE), a polypropylene with a molecular weight of 3.15×10 5 g/mole or a polyethylene with a molecular weight of 1.5×10 5 to 2.5×10 5 g/mole, optionally nano-silver grains, and optionally microcapsules containing a functional material, wherein: the diameter of said fiber is from 0.01 mm to about 3 mm, the particle size of said submicrometer tourmaline particles is from 1 μm to 100 nm, and the amount of said submicrometer tourmaline particles in said fiber is from 1 to 10% by weight, based on the total weight of said fiber contents.