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Method and device for detecting spreading rate of papermaking-method reconstituted tobacco product

A technology of reconstituted tobacco leaves and coating rate, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems that the substrate cannot be completely matched, the error of the detection result is large, and the time is long.

Active Publication Date: 2016-06-15
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the gravimetric method is widely used in the industry, that is, the uncoated substrate and the coated finished product of the same area are taken by a quantitative sampler, and the coating rate is calculated by weighing after drying to absolute dryness. Simple, but there is a problem that the substrate taken in the test and the substrate contained in the finished product cannot completely correspond, the test result has a large error, and the true value of the coating rate cannot be calculated, so it cannot be compared with the test value
There are also researchers who use the flow analysis method to measure the spreading rate. This method also has the problems of time-consuming and poor accuracy, so it has not been popularized and applied so far.

Method used

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  • Method and device for detecting spreading rate of papermaking-method reconstituted tobacco product
  • Method and device for detecting spreading rate of papermaking-method reconstituted tobacco product
  • Method and device for detecting spreading rate of papermaking-method reconstituted tobacco product

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The coating solution, substrate and finished products of different brands of the same brand are diluted or leached, and the full spectrum is scanned by UV.

[0058] Through the experimental results, it can be found that for the products of the same brand, the fluctuation of the UV full spectrum scan curve of the coating solution and the paper-making reconstituted tobacco product extract is consistent, and the UV full spectrum scan curve of the substrate extract is obviously different, especially Between the wavelength of 200.0nm-400.0nm, the absorbance of the substrate extract is 0.0000, while the absorbance of the coating solution and the paper-making reconstituted tobacco product extract has obvious characteristic peaks.

[0059] For products of different brands, it can be seen that there are three characteristic peaks in the leaching solution of different brands between 200.0nm and 400.0nm, and the absorbance of the substrate leaching solution is 0.0000.

[0060] What needs...

Embodiment 2

[0062] First, take a certain amount of coating solution (the coating solution is prepared according to the product formula requirements) and place it in an evaporating dish, and bake it in an oven at 100°C until it is absolutely dry, and then take out the absolutely dry sample and grind it into powder and prepare at least five Gradient standard concentration solution. Using distilled water as a reference, the absorbance was measured by ultraviolet spectrophotometry. The test results are shown in Table 1.

[0063]

[0064] Table 1

[0065] Fit the obtained results to get the corresponding working curve, such as figure 2 Shown. Among them, the linear equation of the corresponding working curve is:

[0066] y=0.187x+0.098

[0067] Here x is the absorbance and y is the concentration of the coating solution. Due to the goodness of fit R 2 It can reach 0.999, indicating a significant linear relationship between absorbance and coating solution concentration.

[0068] Then the sample to be...

Embodiment 3

[0074] First, prepare the test sample: Weigh a certain mass m of the absolutely dry substrate and coat it with the prepared coating solution, then place the coated sample in an oven at 100°C until it is absolutely dry, and call its mass M. Calculate the true value of the coating rate T (it is required that the finished product has at least five gradients of coating rate after coating).

[0075] T=(M-m) / M×100%

[0076] Then, make a standard working curve: place the coated product in a beaker, then measure distilled water with a certain temperature, stir and extract for a certain period of time, then transfer to a volumetric flask for constant volume, and transfer a small amount of extract with qualitative filter paper Filter and measure the absorbance A at a specific wavelength. The test results are shown in Table 3.

[0077] Coating rate (%)

32.168

32.594

33.210

33.760

34.899

36.143

Absorbance A

0.2226

0.2755

0.3410

0.4058

0.5584

0.6866

[0078] table 3

[0079] Fit the obtain...

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Abstract

The invention discloses a method and device for detecting the spreading rate of a papermaking-method reconstituted tobacco product and relates to the field of reconstituted tobaccos.According to the method for detecting the spreading rate of the papermaking-method reconstituted tobacco product, and the spreading rate corresponding to the absorbance is determined according to a corresponding working curve by detecting the absorbance of a papermaking-method reconstituted tobacco product leaching liquor under specific wave length, namely the spreading rate of the papermaking-method reconstituted tobacco product is obtained.Due to the fact that the absorbance of the papermaking-method reconstituted tobacco product leaching liquor under the specific wave length and the spreading rate corresponding to the absorbance have linear relation, the spreading rate of the product can be conveniently, quickly and accurately obtained by detecting the absorbance of the product leaching liquor, and accordingly the method facilitates the production process monitoring of papermaking-method reconstituted tobaccos and determination of the spreading rate of a finished papermaking-method reconstituted tobacco product.

Description

Technical field [0001] The present invention relates to the field of reconstituted tobacco, in particular to a method and device for detecting the coating rate of reconstituted tobacco products by papermaking. Background technique [0002] As an important raw material of cigarette products, paper-making reconstituted tobacco leaves can save cigarette materials and reduce costs. With the development of the industry, the use of paper-making reconstituted tobacco has gradually become an important means and way to reduce harm and reduce coke in cigarette products. [0003] Paper-making reconstituted tobacco is made of tobacco plant tissue as raw material. After extraction and separation, a part of the pulp mainly composed of fibrous tissue is formed and then the substrate is formed by the paper-making process, and the other part is the soluble material-based extract after concentration. The coating liquid is formed. The coating process of reconstituted tobacco by papermaking refers t...

Claims

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Application Information

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IPC IPC(8): G01N21/33
CPCG01N21/33
Inventor 李茂毅李跃锋林凯李易非鹿洪亮
Owner CHINA TOBACCO FUJIAN IND
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