Evaluation method of humidity preservation property of cigarette

Abstract

The invention discloses an evaluation method of the humidity preservation property of a cigarette. The method comprises the steps that a relational graph of equilibrium moisture content of the cigarette and ambient relative humidity is established at a certain temperature; an index fitting curve Y=b0e<b1T> (Y is the equilibrium moisture content and T is the ambient relative humidity) is established by taking the ambient relative humidity as an independent variable and the equilibrium moisture content of the cigarette as a dependent variable; and a coefficient b1 represents the humidity preservation property of the cigarette. The method is simple to operate, accurate, convenient and quick. The testing and evaluation method of the humidity preservation property of the cigarette is high in automation degree, high in temperature and humidity control level and high in testing efficiency.

Description

technical field [0001] The invention relates to the technical field of tobacco, in particular to a method for evaluating the moisture retention performance of cigarette sticks. Background technique [0002] Increasing fragrance and moisturizing is one of the major special projects in the industry. In recent years, a series of scientific research work has been carried out on this special project, especially some researches on the testing methods and evaluation systems of moisturizing performance have been carried out in the industry. However, previous moisture retention performance tests and evaluations were mainly focused on tobacco leaves, and there were few reports on moisture retention of cigarette sticks. In some studies, when it comes to the moisture retention performance of cigarettes, the shredded tobacco is only stripped from the cigarette and then analyzed. Although this analysis method can partially understand the moisture retention performance of cigarettes, it i...

AI Technical Summary

Problems solved by technology

[0005] However, there are still some deficiencies in the above method: (1) The ambient temperature and humidity fluctuate greatly. For example, some studies directly use a constant temperature and humidity chamber to control the humidity, which makes the environmental humidity fluctuate greatly, which cannot truly reflect the moisture retention of the sample under a certain humidity condition. performance; (2) The setting range of ambient temperature and humidity is limited. For example, some methods cannot establish an environment with an absolute humidity of 0, and some methods cannot establish an environment with a humidity greater than 75%; (3) The test efficiency is not high. The temperature and humidity are kept constant. The design of the chamber is relatively small, so multiple samples cannot be measured at the same time; (4) The level of automation and integration is not high, and it is easy to be affected by human factors and cause experimental errors. For example, some methods need to weigh samples out of a constant temperature and humidity environment. Changes in moisture

The imperfection of the moisture retention performance test method directly affects the research on improving the physical moisture retention performance of cigarettes, which is not conducive to the evaluation of the moisture retention performance, nor is it conducive to the development of humectant technologies and methods such as new humectants