| 摘要 |
PURPOSE:To make it easy to attach a filter for a household sink tank, by forming the filter bag of a synthetic fiber non woven fabric, in an integrated one body, and extending this filter bag as the mesh becomes loser from a flange set at the brim of the filter bag toward the bottom. CONSTITUTION:A filter bag 1 is formed of a polyester non drawn synthetic fiber non woven fabric, in an integrated one body, and this filter bag 1 is attached from the center part of a flat ring-shaped flange 2, as extending the side 5 and the bottom 6 in one body. In this case, the filter bag 1 is extended as meshes of the brim 4 near the flange 2 become close, and meshes of the side 5 and the bottom 6 become looser. With this constitution, the filter can be attached easily, through only holding the flange 2 for putting the filter bag 1 onto a basket-shaped filter case.
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