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AssigneeTyco Healthcare Retail Services AG
InventorsFrank S. Glaug, Andrew Waksmundzki
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A disposable absorbent article is provided with a odor control powder which is unscented in a dry state and releases a burst of fragrance when wetted, such as by human waste. The powder contains a relatively small amount of fragrance oil, such as 0.5% to 4% by weight, to prevent skin irritation to the wearer. The small amount of fragrance oil is microencapsulated in a starch which constitutes from about 50% to 90%, and preferably about 70%, of the total weight of the particles. Sodium bicarbonate is also included in the particulate odor control material in an amount ranging from 5.0% to 45%, and preferably about 25% by weight, of the total weight of the particles. The sodium bicarbonate promotes skin wellness by controlling the pH levels of the fragrance oil, starch and human waste. A small amount of flow agent is also contained in the particulate odor control material.
An odor control composition, comprising a powder which releases a fragrance when wetted, the powder consisting of particles, each particle including a fragrance oil microencapsulated within a mixture of a starch, and sodium bicarbonate.
A time release odor control composition for a disposable absorbent article, comprising a powder which is substantially unscented when in an initial dry condition, before being wetted, and which, when wetted, releases a fragrance, the powder consisting of particles, and each of the particles comprising about 0.5 to 4% by weight of a fragrance oil, about 5 to 45% by weight of sodium bicarbonate, and about 50 to 90% by weight of a starch, the fragrance oil being microencapsulated within a mixture of the starch and the sodium bicarbonate to prevent the fragrance oil from dissipating when the powder is in said initial dry condition, before being wetted.
A disposable absorbent article for absorbing and containing body fluids, comprising an absorbent core and an odor control powder, both located between a fluid pervious cover sheet and a fluid impervious or hydrophobic backing, the odor control powder being substantially unscented when in an initial dry condition, before being wetted, and being capable of releasing a mild fragrance when wetted, the odor control powder consisting of particle, each of the particles comprising about 0.5 to 4% by weight of a fragrance oil, about 5 to 45% by weight of sodium bicarbonate, and about 50 to 90% by weight of a starch, the fragrance oil being microencapsulated within a mixture of the starch and the sodium bicarbonate to prevent the fragrance oil from dissipating when the powder is in said initial dry condition, before being wetted.
Dependencies are inferred from the claim text.