Sprayed adhesive diaper construction

Abstract From the Canadian patent

A distinctive method and apparatus for depasiting a pattern of material, such as hot-melt adhesive onto a substrate comprises, a supplying mechanism for forming a first and at least a second substantially continuous stream of the selected material and a, gas-directing mechanism for forming a plurality of gas streams. The gas streams have selected velocities and are arranged to entrain the material streams to impart a swirling motion to each of the material streams as it moves toward the substrate. A transport mechanism moves the substrate relative to the supply mechanism along a selected machine direction. A regulating mechanism controls the supplying mechanism and gas-directing mechanism …