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Tobacco moisture retention performance test method

A moisture retention performance and testing method technology, applied in the field of tobacco, can solve the problem that the test and evaluation of tobacco moisture retention performance cannot take into account thermodynamics and kinetics, etc.

Active Publication Date: 2016-08-10
SHANGHAI TOBACCO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a new test method for the moisture retention performance of tobacco, and overcome the defects in the prior art that the test and evaluation of the moisture retention performance of tobacco cannot take into account both thermodynamics and kinetics

Method used

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  • Tobacco moisture retention performance test method
  • Tobacco moisture retention performance test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1) Sample preparation: Weigh 12g of tobacco samples respectively and place them in sample dishes of known quality. The names and serial numbers of the tobacco samples are as shown in Table 1;

[0049] Table 1 Name list of tobacco samples

[0050] serial number

Tobacco sample name

1

leaf silk 1

2

leaf silk 2

3

leaf silk 3

4

Bulk 1

5

Bulk 2

6

Bulk 3

7

shredded stem 1

8

Shredded stem 2

9

Shredded stem 3

[0051] 2) The tobacco sample is equilibrated for 48 hours in a standard environment; the standard environment is RH=60%, T=22°C;

[0052] 3) Dynamic test of moisture content on dry basis: pre-set the temperature and relative humidity of the air environment in the dynamic moisture analysis climate box to 22°C and 40% respectively, and set the sample mass to be recorded every 20s, with the mass accurate to 0.0001g; After entering 9 tobacco samples, it starts to run a...

Embodiment 2

[0058] 1) Sample preparation: Weigh 1g shredded tobacco blank control sample and shredded tobacco sample added with different humectants and place them in a sample dish of known quality to test one by one. The names and serial numbers of the tobacco samples are shown in Table 3;

[0059] Table 3 Name list of tobacco samples

[0060] serial number

Tobacco sample name

1

Tobacco blank control

2

Tobacco + humectant 1

3

Tobacco + humectant 2

4

Tobacco + humectant 3

[0061] 2) The tobacco sample is equilibrated for 48 hours in a standard environment; the standard environment is RH=60%, T=22°C.

[0062] 3) Dynamic test of moisture content on a dry basis: set the temperature and relative humidity of the dynamic moisture tester (DVS) to 22°C and 30% respectively, record the sample mass every 1 minute, the mass is accurate to 0.000001g, and automatically stop and enter the drying process after 15 hours of operation program, get...

Embodiment 3

[0068] 1) Sample preparation: Weigh 10 g of cut stem blank control sample and cut stem sample with humectant added and place them in a sample dish of known quality. The names and serial numbers of the tobacco samples are shown in Table 5;

[0069] Table 5 Name list of tobacco samples

[0070] serial number

Tobacco sample name

1

Shredded stem blank control

2

Shredded stem + moisturizer 1

3

Shredded stem + moisturizer 2

4

Shredded stem + moisturizer 3

[0071] 2) Tobacco samples were equilibrated for 48 hours in a standard environment;

[0072] 3) Dynamic test of moisture content on a dry basis: pre-set the temperature and relative humidity of the air environment in the climate box to 22°C and 40% respectively, and set the sample mass to be recorded every 20s, with the mass accurate to 0.0001g; put 4 tobaccos in sequence Start running after the sample, and stop automatically after running to 48h, and get the tobacco samp...

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Abstract

The invention provides a tobacco moisture retention performance test method which comprises the steps of sample preprocessing, sample weight dynamic testing and data acquisition, dry base moisture rate calculation and moisture loss curve drawing, moisture ratio calculation and data fitting, and calculation of the moisture retention index and the average moisture loss rate or calculation of the average moisture loss rate at specific moisture ratio and the moisture retention index. The invention provides the tobacco moisture retention performance test and evaluation method which is used for solving the problems in the prior art that the tobacco shred moisture retention performance cannot be rapidly, simply, accurately and comprehensively tested and evaluated. Based on a fact that the tobacco physical moisture retention performance has relatively strong correlation with thermodynamics and kinetics indexes, the moisture retention evaluation method takes thermodynamic and kinetic indexes into account simultaneously, so that the tobacco physical moisture retention performance is more comprehensively and scientifically evaluated.

Description

technical field [0001] The invention relates to the field of tobacco, and specifically discloses a method for testing the moisture retention performance of tobacco. Background technique [0002] The moisture retention performance of cigarettes is closely related to the quality of cigarettes, and improving the physical moisture retention performance of cigarettes is one of the important ways to improve the sensory comfort of cigarettes. In the process of cigarette moisture retention research, how to quickly, easily and accurately test and evaluate the moisture retention performance of shredded tobacco has become an urgent problem to be solved. In 2008, Hu Jun and others invented a method and device for continuous measurement of tobacco moisture content. The device can be used to continuously monitor the moisture content of tobacco, so as to compare the differences in the moisturizing properties of different humectants. In 2009, He Baojiang and others invented the tobacco moi...

Claims

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Application Information

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IPC IPC(8): G01N5/02
CPCG01N5/025
Inventor 楼佳颖沙云菲吴达朱云张乾刘百战严逸凯
Owner SHANGHAI TOBACCO GRP CO LTD
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