초록 ▼

Described is a time release fragrance sachet for air freshening, particularly for use in clothing storage cabinets. The sachets comprise a container fabricated from a substance either sufficiently porous for perfumes to pass therethrough or having openings capable of permitting fragrances to pass th

Described is a time release fragrance sachet for air freshening, particularly for use in clothing storage cabinets. The sachets comprise a container fabricated from a substance either sufficiently porous for perfumes to pass therethrough or having openings capable of permitting fragrances to pass through the walls thereof. The sachets each contain thermoplastic particles which have contained in the interstices thereof fragrance materials. The polymer particles can be foamed particles produced using chemical blowing agents or direct gas extrusion processes. Also described are methods for fabricating such sachets and methods of using same.

대표청구항 ▼

[ What is claimed is:] [1.]1. A three-dimensional sachet article located in a three-dimensional space comprising:(1) non-rigid, hollow containment means consisting of a non-rigid, non-perforated container wall, which is a continuous, thin lamina separating an inner void from an outer environment, to

[ What is claimed is:] [1.]1. A three-dimensional sachet article located in a three-dimensional space comprising:(1) non-rigid, hollow containment means consisting of a non-rigid, non-perforated container wall, which is a continuous, thin lamina separating an inner void from an outer environment, totally surrounding said inner void; having a height of from about 3 inches up to about 6 inches and a width of from about 2 inches up to about 5 inches; and having a measurement of weave of from about 10 up to about 120 grams per square centimeter, and which is porous to perfumes having a calculated log.sub.10 P of from about 3 up to about 8; and(ii) contained within a major proportion of said inner void and supported by said non-perforated container wall, a plurality of extruded polymeric perfume-containing and evolving particles having a total weight of from about 2 grams up to about 14 grams and a diameter of from about 3 mm up to about 7 mm, each of which contains within the interstices, thereof from about 5 up to about 45% by weight of a perfume composition having a calculated log.sub.10 P of from about 3 up to about 8, and a boiling point at atmospheric pressure of greater than 250.degree. C., which perfume composition is emitted in a controllably releasable manner over an extended period of time into said inner void and then into said outer environment.