Flavoring solution

Abstract

A flavoring solution for a smoking article comprising 25 to 55 wt % flavoring agent, 1 to 20 wt % cooling agent, 0.1 to 5 wt % sweetener, and a carrier solvent.

1 . A flavoring solution for a smoking article comprising:
 a. 25-55 wt % flavoring agent;   b. 1-20 wt % cooling agent;   c. 0.1-5 wt % sweetener;   d. a carrier solvent.   
     
     
         2 . The flavoring solution for a smoking article according to  claim 1 , wherein the flavoring solution comprises:
 a. 35-52 wt % flavoring agent;   b. 2-15 wt % cooling agent;   c. 0.1-1 wt % sweetener; and   d. a carrier solvent.   
     
     
         3 . The flavoring solution for a smoking article according to  claim 1 , wherein the flavoring solution comprises:
 a. 45-50 wt % flavoring agent;   b. 3-10 wt % cooling agent;   c. 0.15-0.5 wt % sweetener; and   d. a carrier solvent.   
     
     
         4 . The flavoring solution for a smoking article according to  claim 1 , wherein the flavoring solution comprises:
 a. 47-48 wt % flavoring agent;   b. 4-6 wt % cooling agent;   c. 0.2-0.3 wt % sweetener; and   d. a carrier solvent.   
     
     
         5 . The flavoring solution according to  claim 1 , wherein the flavoring agent is a natural material or a synthetic material, that is capable to create the desired aroma and taste when applied to a smoking article. 
     
     
         6 . The flavoring solution according to  claim 1 , wherein the flavoring agent is menthol, or a derivative thereof. 
     
     
         7 . The flavoring solution according to  claim 1 , wherein the cooling agent is a cold thermosensory agonist. 
     
     
         8 . The flavoring solution according to  claim 1 , wherein the cooling again is a thermoreceptor (TRPV) agonist, typically a TRPM8 or TRPA1 agonist. 
     
     
         9 . The flavoring solution according to  claim 1 , wherein the cooling agent is one or more of N-Ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide (WS-3); N-[(ethoxycarbonyl)methyl)-p-menthane-3-carboxamide (WS-5); (1R*,2S*)—N-(4-Methoxyphenyl)-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide (WS-12); N,2,3-trimethyl-2-propan-2-ylbutanamide (WS-23) and N,2-diethyl-3-methyl-2-propan-2-ylbutanamide (WS-27), typically, N-Ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide (WS-3); N-[(ethoxycarbonyl)methyl)-p-menthane-3-carboxamide (WS-5) and N,2,3-trimethyl-2-propan-2-ylbutanamide (WS-23), more typically, or N-Ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide (WS-3). 
     
     
         10 . The flavoring solution according to  claim 1 , wherein the sweetener is one or more of sucralose, ethyl maltol, erythritol, stevia, neotame, or other aspartame analogues, typically, the sweetener is sucralose. 
     
     
         11 . The flavoring solution according to  claim 1 , wherein the carrier solvent has a vapor pressure greater than water. 
     
     
         12 . The flavoring solution according to  claim 1 , wherein the carrier solvent has a vapor pressure of at least 1.5 kPa (at 20° C.), such as at least 1.95 kPa (at 20° C.), such as at least 2.34 kPa (at 20° C.), such as at least 3 kPa (at 20° C.), such as at least 4 kPa (at 20° C.), such as at least 5 kPa (at 20° C.), such as at least 5.8 k kPa (at 20° C.) 
     
     
         13 . The flavoring solution according to  claim 1 , wherein the carrier solvent comprises an alcohol, typically ethanol or propanol, more typically, ethanol. 
     
     
         14 . The flavoring solution according to  claim 1 , wherein the carrier solvent comprises about 95 wt % ethanol and 5 wt % water based on the total weight of the carrier solvent. 
     
     
         15 . The flavoring solution according to  claim 1 , wherein the carrier solvent is present in an amount of between 40 to 60 wt %, such as 45 to 55 wt %. 
     
     
         16 . The flavoring solution according to  claim 1 , further comprising an additive, for example, a colorant. 
     
     
         17 . A method of flavoring a smoking article, the method comprising applying a flavoring solution to at least a portion of a surface of the smoking article, typically, to a smokable portion of the surface of the smoking article,
 wherein the flavoring solution is according to  claim 1 .   
     
     
         18 . The method of flavoring a smoking article according to  claim 17 , wherein the flavoring solution is applied to an exterior surface of the smoking article. 
     
     
         19 . A smoking article that is at least partially coated with the flavoring solution according to  claim 1 .