| 摘要 |
A support tube for cross-wound coils and cross-wound windings for the bleaching and dyeing of shrinking yarns consisting of a strip, closed in itself, of a porous, elastic two-layer nonwoven fabric of synthetic fibers and/or endless fibers which are joined to each other, where the lower layer has a corrugation oriented parallel to the longitudinal direction, and the upper layer covers the folds formed by the corrugation on the outside and is connected firmly to the lower layer in the region of the largest diameter of the folds.
|
