Methods, devices, compositions, and systems for improved scent delivery
Systems, devices, methods, and compositions that improve the scent perception for a user. Improved scent perception is achieved by presenting alternating scents and by varying levels of output of scents, as well as by minimizing device clogging, thereby improving evaporation profiles.
1. A method of flattening a perfume-release profile from a heated-wick perfume composition-dispensing device comprising:
a) applying heat to the wick to achieve a wick temperature sufficient to increase the rate of volatilization of at least one component of the perfume composition, wherein the increased volatilization occurs for a period of from 17 minutes to about 72 minutes;
b) reducing the heat to achieve a wick temperature sufficient to decrease the rate of volatilization of the at least one component of the perfume composition;
c) maintaining the reduced heat for a time sufficient to allow for back-flow of at least one component of the perfume composition, the time being 17 minutes to 72 minutes; and repeating a).
2. A method of flattening a perfume-release profile from a heated-wick perfume composition-dispensing device comprising two or more perfume modules comprising at least a first and second reservoir containing a perfume composition, and at least a first and second wick in fluid communication with the perfume composition, comprising:
a1) applying heat to the first wick to achieve a wick temperature sufficient to increase the rate of volatilization of at least one component of the perfume composition;
b1) reducing the heat applied to the first wick to achieve a wick temperature sufficient to decrease the rate of volatilization of the at least one component of the perfume composition;
c1) maintaining the reduced heat for a time sufficient to allow for back-flow of at least one component of the perfume composition, the time being about 20 minutes to about 24 hours;
a2) automatically applying heat to the second wick to increase volatilization of at least one component of the second perfume composition;
b2) reducing the heat applied to the second wick to a temperature sufficient to decrease volatilization of the at least one component of the second perfume composition;
c2) maintaining the reduced heat applied to the second wick for a time sufficient to allow for back-flow of at least one component of the second perfume composition the time being about 20 minutes to about 24 hours;
repeating a1); and
repeating a2);
wherein the first and second wick have an average pore size of from 50-150 microns.
3. The method according to claim 2 , wherein the wick temperature sufficient to increase the rate of volatilization of at least one component of the perfume composition is greater than or equal to about 40° C.
4. The method according to claim 3 , wherein the wick temperature sufficient to increase the rate of volatilization of at least one component of the perfume composition is greater than or equal to about 60° C.
5. The method according to claim 4 , wherein the wick temperature sufficient to increase the rate of volatilization of at least one component of the perfume composition is greater than or equal to about 80° C.
6. The method according to claim 2 , wherein the wick temperature sufficient to decrease the rate of volatilization of the at least one component of the perfume composition is less than or equal to about 40° C.
7. The method according to claim 2 , wherein the difference between wick temperatures at a) and c) is from about 10° C. to about 100° C.
8. The method according to claim 7 , wherein the difference between wick temperatures at a) and c) is from about 20° C. to about 80° C.
9. The method according to claim 8 , wherein the difference between wick temperatures at a) and c) is from about 40° C. to about 60° C.
10. The method according to claim 1 , wherein the time sufficient to allow for back-flow of all or a portion of the components of the perfume composition is from about 20 minutes to about 60 minutes.
11. The method according to claim 10 , wherein the time sufficient to allow for back-flow of all or a portion of the components of the perfume composition is about 30 minutes.
12. The method according to claim 2 , further comprising, repeating b) and c).
13. The method according to claim 12 , wherein a), b), and c), are each repeated at least two times.
14. The method according to claim 2 , wherein in at least one repeated heating steps, the temperature of the wick is higher than in the previous heating step.
15. The method according to claim 2 , wherein performance of a1) and a2) overlaps for a period of from about 0.1% to about 100% of the duration of a1).
16. The method according to claim 2 , wherein the performance of a1) and a2) does not overlap.
17. The method according to claim 16 , wherein there is a gap between performance of a1) and a2) for a period of from about 0.1% to about 100% of the duration of a1).
18. The method according to claim 2 , wherein the reduced heat is maintained for a time sufficient to allow for back-flow of all of the components of the perfume composition.
19. The method according to claim 2 , wherein step a1) further comprises applying a fan to the wick for enhancing release of at least one component of the perfume composition.
20. A method of flattening a perfume-release profile from a heated-wick perfume composition-dispensing device comprising two or more perfume modules comprising at least a first and second reservoir containing a perfume composition, and at least a first and second wick in fluid communication with the perfume composition, comprising:
a1) applying heat to the first wick to achieve a wick temperature sufficient to increase the rate of volatilization of at least one component of the perfume composition;
b1) reducing the heat applied to the first wick to achieve a wick temperature sufficient to decrease the rate of volatilization of the at least one component of the perfume composition;
c1) maintaining the reduced heat for a time sufficient to allow for back-flow of at least one component of the perfume composition, the time being about 17 minutes to about 72 minutes;
a2) automatically applying heat to the second wick to increase volatilization of at least one component of the second perfume composition;
b2) reducing the heat applied to the second wick to a temperature sufficient to decrease volatilization of the at least one component of the second perfume composition;
c2) maintaining the reduced heat applied to the second wick for a time sufficient to allow for back-flow of at least one component of the second perfume composition the time being about 17 minutes to about 72 minutes;
repeating a1); and repeating a2); wherein the first and second wick have an average pore size of from 50-150 microns.