Absorbent article, method and apparatus for making same.

摘要

An absorbent article (110) comprising an outer layer (112), a liquid-permeable inner layer (114), an absorbent body (116) positioned between said inner (114) and outer (112) layers, and an array of adhesive arranged to secure one or more of said layers (112, 114) to said absorbent body (116) wherein said adhesive array is composed of a plurality of juxtaposed, substantially continuous, semi-cycloidal patterns (90) of adhesive exending substantially along a longitudinal dimension of said article (110). Methods and an apparatus are described for depositing a pattern of material (11), such as hot-melt adhesive, onto a substrate (14), via a supplying mechanism (10) for forming a first and at least a second substantially continuous stream of the selected material, and a gas-directing mechanism (30) 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 (14). A transport mechanism (15, 16) moves the substrate (14) relative to the supply mechanism along a selected machine direction (27). The material stream is controlled in a selected path toward the substrate (14) and deposits the material in adjacent semi-cycloidal patterns (90) on the substrate (14) while a selected cross-directional positioning of one or more of the deposited patterns is closely controlled.