| abstract |
The invention relates to a preparation method of a degradable gel membrane filter rod used for cooling the heat-not-burn cigarette. The preparation method includes the steps of liquid gel preparation, gel membrane preparation, gel membrane filter rod preparation and the like. As a phase-change cooling material, the degradable gel film of the present invention can perform heat exchange with the flue gas, thereby reducing the temperature of the flue gas and improving the suction texture and moisturizing feeling. The degradable gel film filter rod of the invention has obvious cooling effect, stable suction resistance, and is used in the composite nozzle rod of heat-not-burn cigarettes, and the cooling range is obviously improved. |