Fragrance-releasing microcapsules on a see-through substrate

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an article comprising a flexible transparent or translucent substrate having at least one surface, a polymeric binder layer having microcapsules dispersed therein over said one surface, and a pressure sensitive or water-moistenable adhesive on the other surface of said substrate.
The substrate is a film or sheet material which may effectively be of any polymeric film as long as the substrates are transparent or translucent.
By "translucent" according to the present invention, it is meant that at least 50% (and preferably at least 75%) of incident visible light is transmitted or that at least 80% of light within a 50 nm band is transmitted through the substrate when adhered to a surface.
The capsules in the present invention may comprise any ruptureable capsule containing an odorous ingredient therein.
The size of the capsules should generally be in a range of an average diameter between 8 and 30 microns when the capsule payload is between 55 and 80% by weight of load to capsule.
It is preferred that the capsules have an average diameter between 10 and 26 microns and it is most preferred that the capsules have a diameter between 12 and 25 microns.
The coating weight of binder and microcapsules should be at a coating weight of approximately one pound for 300 to 3000 square feet.
Preferably the coating weight should be between approximately one pound for each 250 to 650 square feet.
The capsules should form between 20 and 75 percent by volume of the total adhesive composition, and preferably between 50 and 65 percent of the total composition.
The nature and composition of the binder is not critical to the practice of the invention as long as the binder does not opacify the article or visually block the printed image.
The adhesive may be pressure sensitive or solvent sensitive (preferably water-activatable).
It is generally preferred that the adhesive be pressure sensitive for ease of application.
Well known acrylic and polyurethane pressure sensitive compositions are particularly desirable