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US 10,675,195 B2Granted
Absorbent article including a buffer composition
AssigneeEdgewell Personal Care Brands, LLC
InventorsJoseph Greco, David Gubernick, Claudia Massiel Montoya
Life of this patent
Estimating the term…
Abstract
The present invention generally relates to absorbent sanitary articles for absorption of body fluids and in particular to a sanitary article of this type including a buffer composition adapted to adjust the natural pH of the absorbed body fluid to a pH that is compatible with the pH of skin.
Claims18
An absorbent article comprising:
- an absorbent article length;
- an absorbent article width;
- a body facing surface;
- a liquid permeable cover layer;
- a liquid impermeable barrier layer;
- an absorbent core arranged between the cover layer and the barrier layer, the absorbent core, the absorbent core having an absorbent core length and an absorbent core width that are less than the absorbent article length and the absorbent article width, respectively, the absorbent core comprising:
- a first absorbent layer;
- a second absorbent layer;
- and
- a superabsorbent polymer and adhesive mixture arranged between the first absorbent layer and the second absorbent layer, the core comprising between about 50% and 98% of the superabsorbent polymer and between about 2% and about 50% of the adhesive, the superabsorbent polymer and adhesive mixture is free from fibrous material;
- and
- a buffer composition capable of adjusting a pH of body fluids having a natural pH of from about 3.0 to about 8.0 to an adjusted pH of between 4.6 and 6.3 at the body facing surface of the article after such body fluid is absorbed by the absorbent article, the buffer composition arranged between said first absorbent layer and the second absorbent layer, wherein the buffer composition, in its dry state, does not contact the cover layer, wherein the buffer composition is in an amount of about 0.1 g to about 5.0 g.
9 more elements
An absorbent article comprising:
- an absorbent article length;
- an absorbent article width;
- a liquid permeable cover layer having a body facing surface;
- a liquid impermeable barrier layer;
- an absorbent core arranged between the cover layer and the barrier layer, the absorbent core having an absorbent core length and an absorbent core width that are less than the absorbent article length and the absorbent article width, respectively, the absorbent core, the absorbent core comprising:
- a first absorbent layer;
- a second absorbent layer;
- and
- a superabsorbent polymer and adhesive mixture arranged between the first absorbent layer and the second absorbent layer, the core comprising between about 50% and 98% of the superabsorbent polymer and between about 2% and about 50% of the adhesive, the superabsorbent polymer and adhesive mixture is free from fibrous material;
- and
- a buffer composition capable of adjusting a pH of body fluids, wherein the buffer composition is only applied to the absorbent core and arranged between the first absorbent layer and the second absorbent;
- and
- wherein the buffer composition, in its dry state, does not contact the body facing surface;
- and
- wherein the buffer composition is in amount of between about 0.1 g and about 5.0 g.
12 more elements
Dependencies are inferred from the claim text.