A preparation method of heat-not-burn cigarette paper containing boron nitride thermally conductive filler

Abstract

The invention relates to cigarette paper manufacturing technology and aims to provide a method for preparing heat-not-burn cigarette paper containing boron nitride thermally conductive filler. The present invention improves the pulp preparation in the conventional cigarette paper papermaking process: mixing potassium oleate, polyvinyl alcohol and water, stirring evenly under ultrasonic conditions, and filtering until there is no precipitation after aging; mixing the obtained mixed solution with softwood pulp and hardwood pulp are uniformly mixed to obtain coarse pulp; under stirring conditions, boron nitride and calcium carbonate fillers are added to the coarse pulp, the temperature is raised to 60°C, and the mixture is stirred until fully mixed to obtain pulp for sizing and papermaking. The invention starts from improving the thermal conductivity of the paper, and effectively improves the stability of the cigarette paper. Boron nitride is used as a thermally conductive filler in thin-walled or paper products to give it a higher heat dissipation capacity; it not only maintains the original whiteness and transparency of cigarette paper, but also has higher conductivity; it adjusts the combustion performance of cigarette paper, Adapt the burning rate of cigarette paper and cut tobacco.

Description

technical field

[0001] The invention belongs to the cigarette paper manufacturing technology, in particular to a method for preparing heat-not-burn cigarette paper containing boron nitride thermally conductive filler. Background technique

[0002] The smoking temperature of traditional cigarettes is as high as 900°C, and tobacco leaves or tobacco materials are burned and pyrolyzed under high temperature conditions to produce many harmful substances. Low-tar and low-hazard cigarettes are the development trend of cigarettes, and heat-not-burn (HnB) tobacco products are new types of tobacco products that use a specific heat source to heat the tobacco core (below 500°C) with shredded tobacco as the main body, and the tobacco core only heats and does not burn . A simple summary of this technology is to bake the special "drug bomb" through the heater, and control the temperature below 350°C, which can not only release the nicotine and aromatic substances in the tobacco, but also ...

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