Method for preparing tobacco sheet capable of reducing harmful substances in smoke

Abstract

The invention relates to a method for preparing a tobacco sheet capable of reducing harmful substances in smoke, which comprises the following steps of: (1) after extracting tobacco powder and tobacco stalks, which are used as the raw materials, by hot water or 75 to 95 mass percent of ethanol, concentrating into tobacco concentrated solution with the solid content of 20 to 55 percent; (2) adding 0.05 to 5 mass percent of metallic oxide, metal salt and a mixture in any ratio into the tobacco concentrated solution; (3) adding 0.05 to 8 percent of inorganic mineral adsorbing material into the tobacco concentrated solution to obtain a composite additive; and (4) coating the tobacco concentrated solution added with the composite additive on a substrate of the tobacco sheet. When the tobacco sheet prepared by the method is burnt, on one hand, the pyrolysis process in the burning process can be catalyzed and the generation of benzene ring substances and the like can be reduced, and on the other hand, generated particle substances with high molecular mass, particularly substances containing benzene rings, are adsorbed into a pore structure of the additive, so that the aim of avoiding the harmful substances being sucked into the mouth is fulfilled.

Description

technical field [0001] The invention belongs to the technical field of tobacco sheet production by papermaking, in particular to a method for preparing tobacco sheet capable of reducing harmful substances in smoke. Background technique [0002] Modern scientific research shows that the direct harm caused by cigarette smoke to the human body is: the gas phase mainly contains carbon monoxide, nitrogen oxides, volatile aromatic hydrocarbons, hydrogen cyanide, volatile aldehydes and ketone compounds, etc.; Aromatic hydrocarbons, N-nitrosamines, phenolic substances, free radicals, certain heterocyclic compounds, heavy metals and radioactive substances, etc. How to selectively reduce the harmful substances in cigarette smoke has been a difficult problem that has plagued the tobacco industry for a long time. At present, the reduction of harmful components in cigarette smoke is generally achieved by reducing the amount of tar released from cigarettes. For this reason, whether it i...

AI Technical Summary

Problems solved by technology

In short, great progress has been made in research on cigarette harm reduction by using modern technology, and many technologies and methods for tar reduction and harm reduction have been developed, which have achieved certain results, but these technologies are generally a single technology or a small number of technologies in a small range In the actual application of cigarettes, the overall effect of reducing tar and harm is not significant

Some of the relevant damage reduction technologies have also been verified in the laboratory, and it was found that under the condition of keeping other conditions unchanged, the damage reduction effect of these technologies alone is not obvious