Filter to which binder with improved functionality is applied and smoking article including the same

Abstract

The present disclosure provides a smoking article filter including lyocell tow including a plurality of lyocell fibers, a phenolic functional material, and a binder and a method of producing the smoking article filter and provides a smoking article including the smoking article filter.

1 . A smoking article filter comprising:
 lyocell tow including a plurality of lyocell fibers; and   a binder solution containing a phenolic functional material and a binder.   
     
     
         2 . The smoking article filter of  claim 1 , wherein the binder solution includes 20 to 50 wt % of the phenolic functional material. 
     
     
         3 . The smoking article filter of  claim 1 , wherein the phenolic functional material is one or more selected from the group consisting of triethyl citrate (TEC) and triacetin (TA). 
     
     
         4 . The smoking article filter of  claim 1 , wherein the binder is one or more selected from the group consisting of a hydrophilic binder and an amphoteric binder. 
     
     
         5 . The smoking article filter of  claim 1 , wherein:
 the binder is one or more hydrophilic binders selected from the group consisting of polyester and a starch-based material; and   the smoking article filter further comprises an emulsifier.   
     
     
         6 . The smoking article filter of  claim 5 , wherein the emulsifier is one or more selected from the group consisting of a monoglyceride, diglyceride, and triglyceride. 
     
     
         7 . The smoking article filter of  claim 1 , wherein:
 the binder is one or more amphoteric binders selected from the group consisting of a cellulose-based binder and a vinyl-based binder;   the cellulose-based binder is one or more selected from the group consisting of hydroxypropyl methylcellulose (HPMC), ethyl cellulose (EC), methyl cellulose (MC), and carboxymethyl cellulose (CMC); and   the vinyl-based binder is one or more selected from the group consisting of polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), and ethylene vinyl acetate (EVAc).   
     
     
         8 . The smoking article filter of  claim 1 , wherein the binder is one or more vinyl-based binders selected from the group consisting of polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), and ethylene vinyl acetate (EVAc). 
     
     
         9 . The smoking article filter of  claim 1 , wherein the binder is polyvinylpyrrolidone (PVP). 
     
     
         10 . The smoking article filter of  claim 4 , further comprising alcohol. 
     
     
         11 . The smoking article filter of  claim 10 , wherein the alcohol is propylene glycol (PG). 
     
     
         12 . A smoking article comprising:
 a tobacco medium portion; and   a filter portion,   wherein the filter portion includes lyocell tow including a plurality of lyocell fibers, a phenolic functional material, an amphoteric binder, and an alcohol,   the phenolic functional material is one or more selected from the group consisting of triethyl citrate (TEC) and triacetin (TA), and   the amphoteric binder is one or more selected from the group consisting of a cellulose-based binder and a vinyl-based binder.   
     
     
         13 . The smoking article of  claim 12 , wherein the amphoteric binder is one or more vinyl-based binders selected from the group consisting of polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), and ethylene vinyl acetate (EVAc). 
     
     
         14 . The smoking article of  claim 12 , wherein the amphoteric binder is polyvinylpyrrolidone (PVP). 
     
     
         15 . The smoking article of  claim 12 , wherein the alcohol is propylene glycol (PG). 
     
     
         16 . A method of producing a smoking article filter, the method comprising:
 a) preparing lyocell tow including a bundle of a plurality of lyocell fibers;   b) mixing an amphoteric binder and an alcohol and then mixing a phenolic functional material therewith; and   c) dispersing a solution, which is obtained by the mixing, in the lyocell tow,   wherein the phenolic functional material is one or more selected from the group consisting of triethyl citrate (TEC) and triacetin (TA),   the amphoteric binder is one or more selected from the group consisting of a cellulose-based binder and a vinyl-based binder, and   the alcohol is propylene glycol (PG).