Fragrance dispensing system with activation indicator and/or consumption indicator
AssigneeHenkel AG & Co. KGaA
InventorsFrank Meier, Matthias Sunder, Matthew Freeborn
Life of this patent
Estimating the term…
Abstract
A fragrance-dispensing system comprises a wick and diffuser, wherein the diffuser surface in contact with surrounding air is larger than the wick surface in contact with the air, a container for receiving the wick, and a fragrance preparation in the container, wherein the fragrance is transported by the wick to the diffuser by capillary action. At least sections of the diffuser include a color-changing agent that interacts with at least one substance present in the fragrance such that a color change is produced on and/or in the diffuser section when the substance comes into contact with the color changing agent.
Claims20
A fragrance-dispensing system comprising:
- a. at least one diffuser having a surface in contact with the surrounding air and having at least two groups of lamellae that differ from each other;
- b. a color change agent present in or on at least a section of said diffuser;
- c. a wick having a surface area at least partly exposed to said surrounding air, said wick in contact with said diffuser;
- d. a container for receiving said wick;
- and
- e. a fragrance preparation in said container and in contact with said wick, said preparation comprising at least one substance capable of reacting with said color change agent,
- wherein (i) said fragrance preparation is transported by means of capillary action against the force of gravity from said container through said wick to said diffuser;
- (ii) said surface of said diffuser in contact with said surrounding air is greater than said surface of said wick exposed to said surrounding air;
- (iii) contact of said substance with said color change agent causes a color change to, and/or in, said section of said diffuser;
- wherein a first color change agent is disposed in a first group of lamellae and a second color change agent is disposed in a second group of lamellae, said first and second color change agents having different compositions.
Dependencies are inferred from the claim text.