Sprayed adhesive diaper construction
First Claim
1. An absorbent article comprising:
- an outer layer;
a liquid-permeable inner layer;
an absorbent body positioned between said inner and outer layers; and
an array of adhesive arranged to secure one or more of said layers to said absorbent body, wherein said adhesive array is composed of a plurality of juxtaposed, substantially continuous, semi-cycloidal patterns of adhesive extending substantially along a longitudinal dimension of said article.
1 Assignment
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Accused Products
Abstract
A distinctive method and apparatus for depositing 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 to direct the material stream in a selected path toward the substrate and deposit the material in adjacent semi-cycloidal patterns on the substrate while closely controlling a selected cross-directional positioning of one or more of the deposited patterns.
58 Citations
9 Claims
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1. An absorbent article comprising:
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an outer layer; a liquid-permeable inner layer; an absorbent body positioned between said inner and outer layers; and an array of adhesive arranged to secure one or more of said layers to said absorbent body, wherein said adhesive array is composed of a plurality of juxtaposed, substantially continuous, semi-cycloidal patterns of adhesive extending substantially along a longitudinal dimension of said article. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification