| 摘要 |
PURPOSE: Far infrared rays and anions-emitting materials applied for health promotion are provided, which radiate a large quantity of anions and far infrared rays at the same time by adding tourmaline to far infrared emitters. CONSTITUTION: The far infrared rays and anions-emitting materials are produced by the following steps of: mixing raw materials emitting far infrared rays such as 38-43parts by weight of silica, 2-4parts by weight of KNO3, 2-5parts by weight of alumina, 20-35parts by weight of boric acid, 14-27parts by weight of Na2CO3 and 5-11parts by weight of CaCO3 for 30-60min; sintering the mixture at 1200-1400deg.C for 1-3hrs; quenching it in water to prevent the decrease of far-infrared emissivity; grinding; adding 1-20parts by weight of tourmaline for emission of anions; and grinding.
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