Coating composition for low ignition propensity cigarette paper, tobacco using same, and method for manufacturing low ignition propensity cigarette paper

Abstract

A coating composition for low ignition propensity cigarette paper, according to one embodiment of the present invention, comprises 10-30 wt % of gum arabic, 25-35 wt % of maltose, 15-30 wt % of ethanol and 10-40 wt % of water.

1 . A coating composition for a low ignition propensity cigarette paper comprising:
 10% to 30% by weight of arabic gum,   25% to 35% by weight of maltose,   15% to 30% by weight of ethanol, and   10% to 40% by weight of water.   wherein a viscosity of the coating composition is more than 100 cPs, less than 1000 cPs,   wherein a viscosity of the coating composition is maintained for 6 months at 2° C. and 20 rpm of spindle speed, and   wherein the coating composition is dried at the room temperature condition.   
     
     
         2 . (canceled) 
     
     
         3 . The coating composition for the low ignition propensity cigarette paper according to  claim 1 , wherein a dynamic viscosity retention rate is 84% or more when a rotational speed of the coating composition for the low ignition propensity cigarette paper increases from about 20 rpm to 100 rpm. 
     
     
         4 . A cigarette, comprising:
 a cigarette column portion, and   a low ignition propensity cigarette paper surrounding the cigarette column portion and including a coating portion formed by drying a coating composition,   wherein the coating composition comprises 10% to 30% by weight of arabic gum, 25% to 35% by weight of maltose, 15% to 30% by weight of ethanol, and 10% to 40% by weight of water.   wherein a viscosity of the coating composition is more than 100 cPs, less than 1000 cPs,   wherein a viscosity of the coating composition is maintained for 6 months at 2° C. and 20 rpm of spindle speed, and   wherein the coating composition is dried at the room temperature condition.   
     
     
         5 . The cigarette according to  claim 4 , wherein the cigarette further comprises a cigarette filter portion. 
     
     
         6 . The cigarette according to  claim 5 , wherein the cigarette filter portion comprises at least one of filter member. 
     
     
         7 . The cigarette according to  claim 6 , wherein the cigarette filter portion comprises at least one of an adsorbent and a flavoring agent. 
     
     
         8 . A method for manufacturing a low ignition propensity cigarette paper, comprising steps of:
 preparing a coating composition,   coating the coating composition on one side of a cigarette paper to discharge the cigarette paper, and   heating and drying the cigarette paper coated with the coating composition to form a coating portion having a band-shape, thereby producing the low ignition propensity cigarette paper,   wherein the coating composition comprises 10% to 30% by weight of arabic gum, 25% to 35% by weight of maltose, 15% to 30% by weight of ethanol, and 10% to 40% by weight of water,   wherein a viscosity of the coating composition is more than 100 cPs, less than 1000 cPs,   wherein a viscosity of the coating composition is maintained for 6 months at 2° C. and 20 rpm of spindle speed, and   wherein the coating composition is dried at the room temperature condition.   
     
     
         9 . A method for manufacturing a low ignition propensity cigarette paper according to  claim 8 , wherein the step of preparing the coating composition comprising:
 a weighing step of measuring a weight of the arabic gum, the maltose, the ethanol, and the water, respectively, and   a blending step of mixing the arabic gum, the maltose, the ethanol, and the water.   
     
     
         10 . A method for manufacturing a low ignition propensity cigarette paper according to  claim 9 , wherein the blending step comprising:
 a step of mixing the ethanol with the water to preparing a dispersion medium,   a first dispersion step of dispersing the maltose in the dispersion medium,   a second dispersion step of dispersing the arabic gum in the dispersion medium,   a first homogenization step of rotating a composition made by the second dispersion step at a speed of 250 rpm to 350 rpm, and   a second homogenization step of rotating a composition made by the first homogenization step at a speed of 150 rpm to 250 rpm while controlling a temperature of 40° C. or less.   
     
     
         11 . A method for manufacturing a low ignition propensity cigarette paper according to  claim 10 , wherein:
 an unit dispersion amount of the maltose is 10 g/L/min to 20 g/L/min, and a rotational speed is 17000 rpm to 20000 rpm in the first dispersion step, and   an unit dispersion amount of the arabic gum is 10 g/L/min to 20 g/L/min, and a rotational speed is 17000 rpm to 20000 rpm in the second dispersion step.   
     
     
         12 . A method for manufacturing a low ignition propensity cigarette paper according to  claim 8 , wherein the coating portion comprises two or more portions, and the two or more portions are spaced apart from each other.