| 摘要 |
<p>PURPOSE:To obtain the fiber massive water treating material which is a fiber massive liquid filter medium, has high filtration efficiency and obviates thinning at the time of back washing. CONSTITUTION:This chip-form water treating material is formed by winding tape-like nonwoven fabric 2 around the outer periphery of the bar-shaped converged matter of continuous band-shaped nonwoven fabric 1, joining the overlapped parts thereof and cutting such nonwoven fabrics to a suitable length. then, the water treating material which has the high filtration efficiency, has a long life and good back washability and lessens the thinning is obtd.</p> |
