| abstract |
The present invention provides a mat material excellent in wind erosion while ensuring safety. The mat material includes a first inorganic fiber made of alumina fiber and a second inorganic fiber made of biosoluble fiber, and the average fiber diameter of the first inorganic fiber is 4.0. A mat material, characterized in that it is ˜10.0 μm, the minimum fiber diameter is 3.0 μm or more, and the minimum fiber diameter of the second inorganic fiber is less than 3.0 μm. [Selection] Figure 1 |