Binary odor control system for absorbent articles
AssigneeInternational Paper Company
InventorBrent A. Petersen
Life of this patent
Estimating the term…
Abstract
Cellulosic pulp structures integrating unreacted quantities of an inorganic peroxide and a destabilizing acid, as binary components of an odor control system, absorbent articles incorporating such structures, and various methods of forming the same, are disclosed herein. The components are adapted to react in the presence of an aqueous fluid to produce hydrogen peroxide, thereby providing an antimicrobial and odor mitigating effect.
Claims20
An absorbent article comprising:
- a cellulosic pulp structure defined by a matrix of cellulose fibers and having a fluid retention agent distributed through the structure, said cellulosic pulp structure being adapted to acquire and retain fluid;
- wherein the cellulose fibers are treated with a water insoluble inorganic peroxide and a destabilizing acid which, in the presence of an aqueous fluid, reacts with the water insoluble inorganic peroxide to produce hydrogen peroxide.
A method of forming an odor-controlling cellulosic pulp structure, the method comprising:
- forming a cellulosic pulp structure by forming a cellulose pulp sheet from a cellulose pulp slurry, and then forming a matrix of cellulose fibers from the cellulose pulp sheet;
- adding a water insoluble inorganic peroxide while forming the cellulosic pulp structure so that from about 1% to about 10% of unreacted peroxide, by weight of the cellulose fibers, is retained in the matrix of cellulose fibers;
- separately adding a destabilizing acid while forming the cellulosic pulp structure so that from about 0.45% to about 3%, of unreacted acid, by weight of the cellulose fibers, remains in the matrix of cellulose fibers;
- and
- distributing a fluid retention agent through the matrix of cellulose fibers.
A cellulosic pulp structure defined by a matrix of cellulose fibers and having a fluid retention agent distributed through the structure, said cellulosic pulp structure being adapted to acquire and retain fluid;
- wherein the cellulose fibers are treated with a water insoluble inorganic peroxide and a destabilizing acid which, in the presence of an aqueous fluid, reacts with the water insoluble inorganic peroxide to produce hydrogen peroxide.
Dependencies are inferred from the claim text.