초록 ▼

A biodegradable air freshener that breaks down in the presence of water to minimize solid waste, including a water soluble substrate including foamed vegetable starch and a liquid fragrance carried in the substrate. The liquid fragrance may be from about 0.01 to about 10 times the weight of the subs

A biodegradable air freshener that breaks down in the presence of water to minimize solid waste, including a water soluble substrate including foamed vegetable starch and a liquid fragrance carried in the substrate. The liquid fragrance may be from about 0.01 to about 10 times the weight of the substrate. A coloring agent may optionally be provided in the liquid fragrance to impart color to the air freshener. Because the substrate is made from a water soluble starch, it dissolves in water leaving little or no solid waste.

대표청구항 ▼

[ What is claimed is:] [13.]13. A method of freshening the air comprising the steps of:providing a substrate infused with a volatile fragrance, the substrate comprising a substantially dry, rigid, open celled foam consisting essentially of vegetable starch selected from the group of wheat starch, ri

[ What is claimed is:] [13.]13. A method of freshening the air comprising the steps of:providing a substrate infused with a volatile fragrance, the substrate comprising a substantially dry, rigid, open celled foam consisting essentially of vegetable starch selected from the group of wheat starch, rice starch, and mixtures thereof;volatilizing the fragrance from the substrate to freshen the surrounding air; anddissolving the substrate in water when the fragrance has substantially volatilized.