Absorbent article comprising a malodor control composition having an acid catalyst
An absorbent article comprising a complexed or encapsulated malodor control composition having at least one volatile aldehyde and an acid catalyst, and methods of use thereof, are provided. The malodor control composition is suitable for a variety of absorbent articles, including use in diapers, toddler training pants, adult incontinence garments, sanitary napkins, pantiliners, interlabial devices, hemorrhoid pads, and the like.
1. An absorbent article comprising a complexed or encapsulated malodor control composition, said malodor control composition comprising:
at least one volatile aldehyde;
an acid catalyst having a vapor pressure of about 0.01 to about 13 at 25° C.;
wherein said at least one volatile aldehyde is present in an amount from about 0.1% to about 5%, by weight of said malodor control composition, and said acid catalyst is present in an amount of about 0.1% to about 1%, by weight of said malodor control composition.
2. The absorbent article of claim 1 wherein said at least one volatile aldehyde has a VP of about 0.001 to about 50 torr.
3. The absorbent article of claim 1 wherein said at least one volatile aldehyde has a VP of about 0.001 torr to about 15 torr.
4. The absorbent article of claim 1 wherein said at least one volatile aldehyde is selected from the group consisting of 2-ethoxy benzylaldehyde, 2-isopropyl-5-methyl-2-hexenal, 5-methyl furfural, 5-methyl-thiophene-carboxaldehyde, adoxal, p-anisaldehyde, benzylaldehyde, bourgenal, cinnamic aldehyde, cymal, decyl aldehyde, floral super, florhydral, helional, lauric aldehyde, ligustral, lyral, melonal, o-anisaldehyde, pino acetaldehyde, P.T. bucinal, thiophene carboxaldehyde, trans-4-decenal, trans 2,4-nonadienal, undecyl aldehyde, and mixtures thereof.
5. The absorbent article of claim 1 wherein said at least one volatile aldehyde is selected from the group consisting of flor super, o-anisaldehyde, and mixtures thereof.
6. The absorbent article of claim 1 wherein said at least one volatile aldehyde comprises a mixture of volatile aldehydes selected from the group consisting of Intreleven Aldehyde, Florhydral, 4,8.dimethyl-4,9.decadienal, Scentenal, Cymal, o-anisaldehyde, Floralozone, Adoxal, Methyl Nonyl Acetaldehyde, Melonal, Flor Acetate, Frutene, Helional, Bourgeonal, Linalool, Benzaldehyde, and mixtures thereof.
7. The absorbent article of claim 1 wherein said at least one volatile aldehyde comprises a mixture of volatile aldehydes, said mixture comprising about 0.1% to about 10% of Accord A, by weight of said malodor control composition; wherein Accord A comprises 5% by weight of Intreleven Aldehyde, 10% by weight of Florhydral, 25% by weight of 4,8.dimethyl-4,9.decadienal, 10% by weight of Scentenal, 25% by weight of Cymal, and 25% by weight o-anisaldehyde.
8. The absorbent article of claim 1 wherein said acid catalyst has a vapor pressure of about 0.01 to about 2 torr at 25° C.
9. The absorbent article of claim 1 wherein said acid catalyst is a carboxylic acid.
10. The absorbent article of claim 1 wherein said acid catalyst is present in an amount from about 0.01% to about 0.4%, by weight of said malodor control composition.
11. The absorbent article of claim 1 wherein said acid catalyst is present in an amount of about 0.4%, by weight of said malodor control composition.
12. The absorbent article of claim 1 wherein said composition has a pH of about 4 to about 6.5.
13. The absorbent article of claim 1 further comprising an ingredient selected from the group consisting of: odor masking agents, odor blocking agents, diluents, and mixtures thereof.
14. The absorbent article of claim 1 , wherein said absorbent article is selected from the group consisting of a diaper, an adult incontinence garment, a sanitary napkin, a pantiliner, an interlabial device, and a hemorrhoid pad.
15. The absorbent article of claim 1 , wherein said absorbent article further comprises a topsheet, a backsheet, and an absorbent core disposed between said topsheet and said backsheet.
16. The absorbent article of claim 15 , wherein said absorbent core has a garment-facing side and a body-facing side, and wherein said malodor control composition is disposed on said garment-facing side of said absorbent core.
17. The absorbent article according claim 1 , wherein the malodor control composition is starch encapsulated.
18. The absorbent article of claim 1 , wherein the malodor control composition is encapsulated in reservoir type capsules and can be released by a mechanical action breaking the shell of the capsule.
19. The absorbent article of claim 1 , wherein the malodor control composition is encapsulated in a capsule having a secondary coating material.
20. A method of neutralizing malodor associated with urine, menses, and/or feces, comprising contacting said malodor with the absorbent article of claim 1 .