Invention Grant
US5863653A Rayon fiber containing tourmaline particles and method for the preparation thereof 失效
含有电气石颗粒的人造丝纤维及其制备方法

Rayon fiber containing tourmaline particles and method for the
preparation thereof
Abstract:
Proposed is an electret fiber which is a rayon fiber containing 0.05 to 2.0% by weight of tourmaline particles having a particle diameter not exceeding 0.3 .mu.m. The electret fiber is effective for invigoration of human body by promoting blood circulation. The electret fiber is prepared by spinning a spinning solution of rayon containing the tourmaline particles uniformly dispersed therein into the form of a fiber.
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