Method of administration of fragrance and/or scent and patch therefor

1. A fragrance-emitting patch comprising:

a first layer ( 110 , 180 );

a second, adhesive layer ( 115 ) on one side of the first layer;

a third, structural layer ( 120 ) on an opposite side of the second, adhesive layer from the first layer;

a fourth, adhesive layer ( 125 ) on an opposite side of the third, structural layer from the second, adhesive layer;

a fifth layer ( 140 ) on an opposite side of the fourth, adhesive layer from the third, structural layer, said fifth layer being substantially impermeable to vapor or liquid;

a sixth, adhesive layer ( 145 ) on an opposite side of the fifth layer from the fourth adhesive layer;

a seventh, perfume retaining layer ( 150 ) on an opposite side of the sixth, adhesive layer from the fifth layer;

a an eighth, structural layer ( 160 ) on an opposite side of the seventh, perfume retaining layer from the sixth, adhesive layer; and

a ninth layer ( 170 ) on an opposite side of the eighth, structural layer from the seventh, perfume retaining layer, wherein the eighth, structural layer provides spacing between the seventh, perfume retaining layer and the ninth layer.

2. A patch as claimed in claim 1 , wherein the first layer comprises a first backing layer covering the second, adhesive layer, and wherein the second, adhesive layer adheres the patch to a wearer's skin or clothing.

3. A patch as claimed in claim 1 , further comprising a substance, disposed on the seventh, perfume retaining layer, that fades as the fragrance emanates, to provide a visual indication of fragrance remaining in the patch.

4. A patch as claimed in claim 3 , wherein the substance disappears when the amount of fragrance that the patch emanates drops below a predetermined concentration.

5. A patch as claimed in claim 4 , wherein the substance comprises a fadable ink.

6. A patch as claimed in claim 1 , further comprising:

a further structural layer ( 130 ) on an opposite side of the second, adhesive layer from the third, structural layer; and

a further adhesive layer ( 135 ) between the further and fifth layers.

7. A patch as claimed in claim 6 , wherein the further structural layer comprises a woven fabric.

8. A patch as claimed in claim 7 , wherein the woven fabric comprises a material selected from the group consisting of cotton, nylon, natural material, and synthetic material.

9. A patch as claimed in claim 1 , further comprising:

a further adhesive layer ( 155 ) between the seventh, perfume retaining layer and eighth, structural layer; and

a still further adhesive layer ( 165 ) on an opposite side of the eighth, structural layer from the sixth, adhesive layer.

10. A patch as claimed in claim 1 , further comprising a package for containing the patch and substantially retaining the fragrance until the patch is ready for use.

11. A patch as claimed in claim 1 , wherein the first layer comprises polyester.

12. A patch as claimed in claim 1 , wherein the second, structural layer comprises cellulose.

13. A patch as claimed in claim 1 , wherein the fifth layer comprises a plastic film.

14. A patch as claimed in claim 13 , wherein the plastic film comprises a substantially vapor impermeable material.

15. A patch as claimed in claim 14 , wherein the plastic film comprises polyethylene.

16. A patch as claimed in claim 1 , wherein the seventh, perfume retaining layer comprises a perfume-absorbent material such as cotton.

17. A patch as claimed in claim 1 , wherein the eighth structural layer comprises metallic foil.

18. A patch as claimed in claim 1 , wherein the eighth structural layer comprises a ring.

19. A patch as claimed in claim 1 , wherein the ninth layer comprises metallic foil, as part of a second backing layer to which the ninth layer is adhered, and wherein the ninth layer is removed when the second backing layer is removed, so as to expose the seventh, perfume retaining layer.