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US 11,505,787 B2Granted
Chemiluminescent wetness indicator for absorbent products
AssigneeInternational Paper Company
InventorsBrent A. Petersen, Venketa R. Parthasarathy
Life of this patent
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Abstract
Disclosed herein are fluff pulp compositions, absorbent articles comprising the fluff pulp compositions, and related methods. The fluff pulp compositions comprise a chemiluminescent system configured to produce visible light upon contact with an aqueous system. Representative absorbent articles include disposable diapers and adult incontinence products. Representative chemiluminescent systems include bioluminescent systems.
Claims18
An absorbent article, comprising:
- a top sheet that is liquid permeable;
- a back sheet that is liquid impermeable;
- fluff pulp disposed between the top sheet and the back sheet;
- and
- a chemiluminescent system configured to produce visible light upon contact with an aqueous system;
- wherein the chemiluminescent system comprises a luciferin and a luciferase;
- and
- wherein the luciferin is present in a concentration of 0.0005% to 2%, by weight of the fluff pulp.
5 more elements
An absorbent article, comprising:
- a top sheet that is liquid permeable;
- a back sheet that is liquid impermeable and having an inner surface that faces the top sheet;
- an absorbent core disposed between the top sheet and the back sheet;
- and
- superabsorbent polymer disposed between the top sheet and the back sheet;
- wherein at least some of the superabsorbent polymer is treated with at least one component selected from a luciferin having a concentration of 0.0005% to 2.0% by weight of the superabsorbent polymer and a luciferase having a concentration of 0.005% to 20% by weight of the superabsorbent polymer;
- wherein the at least one component is configured, in the presence of a second component selected from the other of the luciferin and the luciferase, to produce visible light upon contact with an aqueous system.
4 more elements
Dependencies are inferred from the claim text.