Absorbent structure of sanitary article
AssigneeUni-Charm Corporation
InventorIchiro Wada
Life of this patent
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Abstract
A sanitary napkin includes a liquid-permeable topsheet made of thermoplastic synthetic fibers and a liquid-absorbent core integrated with the topsheet at debossed spots. The debossed spots are formed as enlarged diameter upper depressions formed by compressing the topsheet and core together, and reduced diameter lower depressions formed by partially heating the bottom of the depression while under pressure, resulting in the heat-sealing of the topsheet and the core.
Claims10
An absorbent structure for a sanitary article including a liquid-absorbent core and a liquid-permeable topsheet made of thermoplastic synthetic fibers with which at least one surface of said core is covered, said core and topsheet being integrated with each other at a plurality of independently and intermittently distributed debossed spots, wherein the improvement comprises:
- said debossed spots being individually and separately enclosed depressions relative to each other, each spot having an enlarged diameter upper depression formed by partially compressing said core and said topsheet and a reduced diameter lower depression lying inside said enlarged diameter upper depression and formed by partially depressing a bottom of said enlarged diameter upper depression further into said core and heat-sealing this additionally depressed portion of said bottom of said diameter enlarged upper depression to said core.
An absorbent structure for a sanitary article including a liquid absorbent core and a liquid permeable topsheet with which at least one surface of the core is covered, said core and topsheet being integrated with each other at a plurality of independent and intermittently distributed debossed spots, wherein the improvement comprises:
- said debossed spots being individually and separately enclosed depressions relative to each other, each spot having an enlarged diameter upper depression extending into the topsheet and core and a reduced diameter lower depression lying inside the enlarged diameter upper depression and extending further into said core.
Dependencies are inferred from the claim text.