在用于利用吸力来支持横跨幅材到达抽吸槽的宽度除湿纺织材料（W）的连续前进的纤维网上的设备（100）（25）被提供，其在一侧通过在另一侧上的滑动面（11）由一辊子 （30）是有限的。 所述滑块（20）具有部分地接合在所述辊（30）的侧面具有凹槽（14），其中所述辊子（30）。 所述滑块（20）在面向所述边缘（17）的舌形突起啮合的辊子（30）几乎达到它的上顶点（18）在其所述辊子（30）。

In an apparatus (100) for dehumidifying a continuously advancing web of textile material (W) by suction a transversely over the web width reaching suction slot (25) is provided by on the one side by a sliding surface (11), on the other hand a roller (30) is limited. Said slider (20) has partially engages on the side of the roller (30) has a concave recess (14) in which the roller (30). Said slider (20) at its said roller (30) facing the edge (17) a tongue-like projection which engages over the roller (30) almost up to its upper vertices (18).