method and apparatus for streaking a blanket in the machine direction

摘要

Summary "Method and Apparatus for Ribbing a Blanket in the Machine Direction" The present invention relates to a forming device for gathering the width of a travel blanket. the forming device includes opposite arrangements of interleaving rib bars to define between them a longitudinal rib forming maze effective to reduce the width of a web traveling through it for a preselected stretch ratio. The spline bars are curved starting at an inlet end of the forming device such that they converge in a lateral direction as they proceed in the machine direction. In this way, the individual elements of the blanket traveling between respective arrangements in the machine direction follow the contour lines along the curved bars or between adjacent bars of the curved bars so that no element crosses any transverse ribs. machine as the blanket travels and is splined. A corrugated matrix for introducing an almost liquid form to the striated intermediate blanket is also described, as is a corrugation line incorporating these operations and methods for this operation.