Fragrance impregnated foam and method of making the same

Details Fragrance impregnated foam and method of making the same Fragrance impregnated foam and method of making the same

1979-02-22

1981-03-03

Ansher, Harold

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

252316, 252522A, 252522R, 427294, 427373, 428 95, 428315, 428323, 4284231, 428905, A61K 746, C11B 900, B01J 1302, B32B 300

Patent

active

042541794

ABSTRACT:
A method and apparatus for impregnating a porous foam product with a fragrance which is released over an extended period of time. The method includes the steps of depositing scented particles on one surface of the foam and dispersing the particles within the foam by supplying heat to the foam and applying a vacuum to the opposite surface of the foam. Fragrance or fragrance particles may also be added directly to the foam during its manufacture and a semi-permeable film or fabric may also be affixed to the scented porous foam product to retard and thus extend the release of the fragrance. In a preferred embodiment, frangible encapsulated particles of fragrance are used so that the encapsulated fragrance is retained within the foam until it is later utilized and subject to external forces which break the capsule to release the fragrance.

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