Preparation thread guide for applying fluid onto running filament bundle for manufacturing synthetic threads, has wetting section with curved groove bottom, which has groove width that is tapered in thread running direction

摘要

The preparation thread guide has an open guide groove (3), which has an inlet section (3.1) with an inclined groove bottom (4.1) and a wetting section (3.2) with a curved groove bottom (4.2). The groove bottom in the wetting section has a radius of curvature (R) in the range of 120 millimeters to 160 millimeters and a groove width that is tapered in a thread running direction. The guide groove is formed in a single-piece headpiece (1) made from a ceramic molding.