| 摘要 |
PURPOSE: A bag-filter with napping treatment is provided to prevent a filter from being clogged, and to offer good filtering efficiency while preventing environmental contamination due to dust by discharging the clean air to the outside. CONSTITUTION: A bag-filter made of fabric(20) is characterized the following. The napping(15) is formed on a side of the fabric in an intersection part in which weft and warp are crossed. A side of the fabric in which the napping is formed is contacted with the dust not filtered. The fabric is made of one fiber selected from a group consisting of polyester fiber, glass fiber, polyamide fiber, acrylic fiber, and polypropylene fiber.
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