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In this paper, a kind of surface treatment agent and its application on the functional wall fabrics that can produce negative ion was reported. This surface treatment agent was prepared by using nano tourmaline powder dispersion with water as solvent produced by sand milling. The parameters of sand milling process, as well as powder diameter and its distribution, and the negative ion releasing behavior of the functional wall fabrics were discussed. The results showed that nano tourmaline had good dispersity stability with the number average diameter (d50) achieved 190nm and the polydispersity index reached to 0.220. The treated wall fabrics showed good performance in high adsorption with nano powder and high negative ions releasing ability. The negative ions releasing amount changes depending on the different surface treatment process of tourmaline dispersion and three-proofing agent. This facility technics could be widely used as industrial application

Preparation of Nano Tourmaline Surface Treatment Agent and Its Application on Functional Wall fabrics