Method for detecting reconstituted tobacco thickness in papermaking process by utilizing near infrared spectrums

A near-infrared spectroscopy and tobacco reconstituted technology, which is applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of poor stability of measurement and reading of samples with rough surfaces, avoid the accuracy of result characterization, save costs, and improve analysis efficiency. Effect

Active Publication Date: 2012-06-20
YUNNAN REASCEND TOBACCO TECH GRP
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method that can quickly and accurately detect the thickness of reconstituted tobacco leaves by papermaking method in order to solve the disadvantages that the current method for measuring the thickness of reconstituted tobacco leaves by papermaking method is not suitable for measuring rough surface samples and poor reading stability.

Method used

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  • Method for detecting reconstituted tobacco thickness in papermaking process by utilizing near infrared spectrums

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The method for detecting the thickness of reconstituted tobacco leaves by using near-infrared spectroscopy, the steps are as follows:

[0021] ① Collect and prepare 300-500 samples of reconstituted tobacco leaf product series with different papermaking methods, visually inspect the collected samples, and remove samples with obvious protrusions on the surface and holes visible to the human eye, and the remaining samples shall be in accordance with GB / T 16447 "Tobacco and Tobacco Products The temperature, humidity and time requirements of the method stipulated in the "Adjustment and Test Atmospheric Environment" should be adjusted to the collected samples. After adjustment, the thickness should be measured one by one according to the method of GB / T451.3 "Measurement of Paper and Cardboard Thickness", and the thickness can be obtained. Quantitative reference data.

[0022] ②According to the quantitative reference data measured by the standard method, some samples were scre...

Embodiment 2

[0038] Collect 5 samples of reconstituted tobacco leaves by the papermaking method to be tested on the production line, call the model established in Example 1 to predict the thickness index, and predict 5 times for each sample, and apply the standard method to measure the thickness of the sample at the same time. The measurement results are shown in Table 3 :

[0039] Table 3 Test results of production samples Test results

[0040]

[0041] It can be seen from Table 3 that when applied in production practice, the standard deviation of the multiple measurement results of the same sample is small, and the absolute deviation between the model prediction results and the standard method detection values ​​is less than 0.005. Visible near-infrared spectroscopy is feasible for the thickness detection of reconstituted tobacco products of.

[0042] All kinds of papermaking reconstituted tobacco leaf samples in each step of the present invention can be obtained from enterprises p...

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Abstract

The invention relates to a method for detecting reconstituted tobacco thickness in papermaking process by utilizing near infrared spectrums, which includes the following steps: collecting a sample, screening a modeling sample, collecting original spectrums, pretreating spectrums, establishing a quantitative model, optimizing the quantitative model, checking the model and determining reconstitutedtobacco thickness. By adopting the method, the reconstituted tobacco thickness in the papermaking process can be quickly and accurately detected.

Description

technical field [0001] The invention relates to a method for detecting thickness index of reconstituted tobacco leaf products by papermaking method. Background technique [0002] The significance of detecting the thickness of reconstituted tobacco leaves by papermaking method mainly lies in: ① determination of matching with natural tobacco leaves. As a kind of artificial tobacco leaves, reconstituted tobacco leaves are mixed with natural tobacco leaves to make cigarette products. If the thickness of reconstituted tobacco leaves is quite different from that of natural tobacco leaves, the uniformity of mixing with natural tobacco leaves will be affected during the production process, thus affecting the overall quality of cigarettes. quality and performance. ②The thickness of reconstituted tobacco leaves is relatively thin, and its processing intensity cannot meet the requirements, which is likely to reduce the silk rate during cigarette processing. If it is too high, its comb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/06
Inventor 张云龙卫青刘维涓张小江罗平安
Owner YUNNAN REASCEND TOBACCO TECH GRP
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