Method for determining cut tobacco composition based on near infrared spectrum

Abstract

The invention discloses a method for determining cut tobacco composition based on a near infrared spectrum. The method comprises the following steps: step 1, preparing cut tobaccos, swollen cut stems, swollen cut leaves and tobacco slices into powder samples respectively; preparing the powder samples into different cut tobacco samples according to different blending ratios; step 2, collecting a diffuse reflection spectrum of each cut tobacco sample, wherein the collection range of the spectrum is 10000 / cm-3800 / cm<-1>; step 3, establishing a ratio predication model of the content of each component and the corresponding diffuse reflection spectrum according to the corresponding diffuse reflection spectrum and a component ratio of each cut tobacco sample; and step 4, collecting the diffuse reflection spectrum of a cut tobacco sample to be detected, and calculating to obtain the cut tobacco sample to be detected according to the ratio predication model. The method for determining the cut tobacco composition based on the near infrared spectrum, provided by the invention, can be used for simultaneously detecting ratios of the cut tobaccos, the swollen cut stems, the swollen cut leaves and the cut tobacco slices and the quality stability of cigarette products is improved.

Description

technical field [0001] The invention relates to the field of cigarette production and processing, in particular to a method for measuring the composition of shredded tobacco based on near-infrared spectroscopy. Background technique [0002] As people pay more and more attention to health, cigarette products are gradually developing in the direction of low tar and high quality. Adding a certain proportion of blending substances in cigarette shreds can reduce the tar content of finished cigarettes. Due to the loose texture of the blending substances, the cigarettes burn more completely and have a faster burning rate, reducing the number of puffs of cigarettes. . [0003] The admixtures in shredded tobacco mainly refer to expanded cut stems, expanded shredded leaves and tobacco flakes. Therefore, many finished cigarettes contain one or more of the expanded cut stems, expanded cut leaves and tobacco flakes. [0004] The shredded cigarette process is to blend and process shredd...

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned invention patent documents, the first four articles all use the density method to measure the content of the blend, and manually pick, separate and weigh the density of the shredded tobacco and the blend to calculate the content of the expanded stem or leaf in the shredded tobacco. Ratio, manual operation is labor-intensive, time-consuming, and has large errors, and can only detect a single blend

The last article used near-infrared spectral sampling based on the solid sampling module of the integrating sphere. However, this method can only measure the blending ratio of expanded cut tobacco and shredded leaf, and is not suitable for the situation of various blends.

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