FRAGRANCE AND DISPENSER

Abstract

The present invention provides a fragrance composition comprising at least one fragrance, at least one alkoxy alcohol solvent, and at least one co-solvent, and wherein the composition has a water content of less than 5 wt. %. The invention further provides an atomiser for dispensing a fragrance; the atomiser comprising: a. An outer housing; b. An orifice plate and piezo electric element; c. A liquid reservoir comprising a liquid to be atomised, the liquid comprising the fragrance composition hereinabove; and d. A liquid transport member, wherein the liquid transport member extends from within the liquid reservoir to abut the orifice plate, and wherein the liquid transport member is substantially contained within the liquid reservoir and both the liquid transport member and liquid reservoir are readily detachable together from the atomiser.

Claims

1. A fragrance composition comprising at least one fragrance, at least one alkoxy alcohol solvent, and at least one co-solvent, and wherein the composition has a water content of less than 5 wt. %.

2. The fragrance composition of claim 1, wherein the at least one alkoxy alcohol solvent contains a chain of 1-10 carbon atoms, and preferably 1-5 carbon atoms directly connecting the oxygen atom of the alkoxy group to the oxygen atom of the alcohol group.

3. The fragrance composition of claim 1, wherein the at least one alkoxy alcohol solvent comprises a glycol ether.

4. The fragrance composition of claim 3, wherein the at least one glycol ether comprises an e-series or cellosolve glycol ether.

5. The fragrance composition of claim 4, wherein the at least one glycol ether comprises propyl cellosolve.

6. The fragrance composition of claim 1, wherein the at least one alkoxy alcohol solvent comprises a compound of Formula (I):
ROROH(I) wherein RO is: a straight or branched C.sub.1-C.sub.10 alkoxy, preferably C.sub.1-C.sub.5 alkoxy group, optionally containing one or more rings, optionally containing one or more further heteroatoms, and/or optionally containing one or more double bonds; an aryloxy group; or an arylalkoxy group; and R is: a straight or branched C.sub.1-C.sub.15 alkyl, preferably C.sub.1-C.sub.10 alkyl, optionally containing one or more rings, optionally containing one or more heteroatoms, and/or optionally containing one or more double bonds; an aryl; or an aralkyl.

7. The fragrance composition of claim 6, wherein R is: a straight or branched C.sub.1-C.sub.5 alkyl; and RO is: a straight or branched, and preferably straight C.sub.1-C.sub.5, C.sub.1-C.sub.4, or C.sub.1-C.sub.3 alkoxy.

8. The fragrance composition of claim 7, wherein the at least one alkoxy alcohol solvent comprises 3-methoxy-3-methyl-1-butanol.

9. The fragrance composition of claim 1, wherein the at least one alkoxy alcohol solvent comprises between 40-90 wt % of the composition.

10. The fragrance composition of claim 1, wherein the composition contains substantially no water.

11. The fragrance composition of claim 1, wherein the viscosity of the composition is less than 5 cP.

12. The fragrance composition of claim 11, wherein the density of the composition is less than 1.1 g/cm.sup.3.

13. The fragrance composition of claim 1, wherein the composition has a surface tension of less than 35 mN/m.

14. The fragrance composition of claim 1, wherein the at least one co-solvent comprises between 5-50 wt % of the composition.

15. The fragrance composition of claim 1, wherein the at least one co-solvent is selected from the group comprising: dipropylene glycol monomethyl ether (DPM), ISOPAR M, 3,5,5-trimethylhexyl acetate, propylene glycol diacetate (PGDA), and combinations thereof.

16. The fragrance composition of claim 1, wherein the at least one fragrance comprises between 2-30 wt % of the fragrance composition.

17. An atomiser dispensing a fragrance; the atomiser comprising: a. an outer housing; b. an orifice plate and piezo electric element; c. a liquid reservoir comprising a liquid to be atomised, the liquid comprising the fragrance composition of claim 1; and d. a liquid transport member, wherein the liquid transport member extends from within the liquid reservoir to abut the orifice plate, and wherein the liquid transport member is substantially contained within the liquid reservoir and both the liquid transport member and liquid reservoir are readily detachable together from the atomiser.

18. A method of scenting the air comprising activating the atomiser of claim 17.

19. A refill of fragrance as the liquid reservoir with the atomiser of claim 17, the refill comprising: a. a container comprising a liquid comprising the fragrance composition of claim 1; and b. A wick extending from the inside of the container to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0172] In order that the invention may be more clearly understood embodiments thereof will now be described, by way of example only.

Inventive Fragrance Compositions

[0173] The following fragrance compositions were prepared:

Formulation 1:

[0174]

TABLE-US-00001 FRAGRANCE 12 wt. % DPM (dipropylene glycol methyl ether - co-solvent) 7 wt. % 3,5,5-trimethylhexyl acetate - co-solvent 7 wt. % ISOPAR M EU (RTM) (isoparaffinic hydrocarbons - co- 9 wt. % solvent) PROPYL CELLOSOLVE (2-propoxyethanol - glycol ether 65 wt. % solvent)

Formulation 2:

[0175]

TABLE-US-00002 FRAGRANCE 9 wt. % Acetate-based - co-solvent 34 wt. % 3,5,5-trimethylhexyl acetate - co-solvent 7 wt. % PROPYL CELLOSOLVE (2-propoxyethanol - glycol ether 50 wt. % solvent)

Formulation 3:

[0176]

TABLE-US-00003 FRAGRANCE 9 wt. % 3,5,5-trimethylhexyl acetate - co-solvent 9 wt. % ISOPAR M EU (RTM) (isoparaffinic hydrocarbons - co- 9 wt. % solvent) PROPYL CELLOSOLVE (2-propoxyethanol - glycol ether 70 wt. % solvent)

Formulation 4:

[0177]

TABLE-US-00004 FRAGRANCE 9 wt. % 3,5,5-trimethylhexyl acetate - co-solvent 20 wt. % ISOPAR M EU (RTM) (isoparaffinic hydrocarbons - co- 9 wt. % solvent) PROPYL CELLOSOLVE (2-propoxyethanol - glycol ether 62 wt. % solvent)

Formulation 5:

[0178]

TABLE-US-00005 FRAGRANCE 12 wt. % Benzyl acetate co-solvent 9 wt. % ISOPAR M EU (RTM) (isoparaffinic hydrocarbons - co- 9 wt. % solvent) MMB (methoxy-3-methyl-1-butanol solvent) 62 wt. %

Fragrance Testing

[0179] Formulations 1-5 were independently loaded into a piezoelectric Air Wick Essential Mist Diffuser (set on max settings) and independently used to fragrance the insides of small or large testing booths prior to olfactory assessment by a tester.

[0180] Insides of small and large booths were respectively fragranced for 10 minutes or 1 hour prior to assessment.

[0181] Results are displayed below:

[0182] Formulation 1 (small booth): Fragrance displayed good character and strength. No off-putting notes.

[0183] Formulation 2 (large booth): Fragrance displayed good character and strength.

[0184] Formulation 3 (small booth): Fragrance displayed good strength. No bad solvent notes detected.

[0185] Formulation 4 (large booth): Fragrance displayed good character and strength.

[0186] Formulation 5 (small booth): Fragrance displayed good character and strength with no off notes.

[0187] All formulations worked particularly well in the piezo electric diffuser, enabling efficient diffusion of the formulations throughout the airspace.

[0188] The above embodiments are described by way of example only. Many variations are possible without departing from the scope of the invention as defined in the appended claims.