Method for analyzing quality trends of cigarette tobaccos based on whole spectral range molecular spectrum

A molecular spectrum and full-spectrum technology, which is applied in the field of quality trend analysis of shredded cigarette tobacco, can solve problems such as inability to realize online operation and process close integration, repeatability of information collection methods, poor stability, and inconvenient information collection methods, etc. Achieve the effect of overcoming the lack of comprehensive information sources, simple and easy method, good repeatability and stability

Active Publication Date: 2016-05-25
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some progress has been made in the field of product quality control and evaluation, especially in the field of cigarette product quality monitoring, there are still problems in the current quality monitoring methods of multivariate and polymorphic fingerprints. The process is closely connected, and the repeatability and stability of the information collection method are poor

Method used

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  • Method for analyzing quality trends of cigarette tobaccos based on whole spectral range molecular spectrum
  • Method for analyzing quality trends of cigarette tobaccos based on whole spectral range molecular spectrum
  • Method for analyzing quality trends of cigarette tobaccos based on whole spectral range molecular spectrum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Under the same raw materials and process conditions, the quality trend analysis of the full-spectrum molecular spectrum is carried out on the quality of cut tobacco of the same brand of cigarettes:

[0027] a. The source and preparation of cut tobacco samples, 20 cigarette samples of the same brand were taken by classical sampling method, the filter tip was removed, the cigarette paper, tipping paper and tipping paper were peeled off, and only cut tobacco remained.

[0028] b. The near-infrared spectrum (780-2500nm) of the sample is collected. Before the collection, the spectrometer is turned on and preheated for 2 hours. The stripped Yunyan (soft treasure) shredded tobacco was equilibrated at a temperature of 22±1°C and a humidity of 60±2% for 24 hours, and then put into a round-bottomed flask with a sample size of 5 g. Reflectance Spectral Data. Perform 5 repeated data acquisitions for each sample, and store the collected spectral data into the computer; operate and ...

Embodiment 2

[0034] Repeat Example 1, with the following differences:

[0035] a. The classic sampling method was used to extract 20 cigarette samples of Yunyan (Impression), remove the filter tip, peel off the cigarette paper, tipping paper and tipping paper, and only keep the shredded tobacco. The spectral data information of each spectrum segment is collected separately.

[0036] b. Use SIMCA-p11.5+ data processing software to process the collected spectral data of Yunyan (impression) shredded tobacco. Such as image 3 , it can be seen from the figure that for the tobacco quality characteristics of Yunyan (impression), the sample distribution in the class model is relatively uniform, except for one sample, all other samples are distributed in the ellipse of the first principal component and the second principal component, It proves that the product quality is uniform and the trend is stable, and the two principal components [t1] and [t2] can explain most of the information of the bran...

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Abstract

The invention discloses a method for analyzing quality trends of cigarette tobaccos based on a whole spectral range molecular spectrum. The method comprises the following steps: taking 20 cigarette samples of the same brand, removing filter tips, peeling cigarette paper, joining paper and tipping paper, and preserving cigarette tobaccos; collecting near infrared spectrum data, image and spectrum data, ultraviolet spectrum data and Raman spectrum data of the cigarette tobaccos, and processing the whole spectral range molecular spectrum of the collected cigarette tobaccos by virtue of SIMCA-p11.5+ data processing software. The method is simple, convenient and feasible, the analysis process is rapid, the calculation result is accurate, and defects that information sources are not complete, information collection manners are not convenient and rapid enough in traditional methods can be overcome; the batch and online operation can be realized, and the method is in close connection with the process; an information collection method is good in both repeatability and stability; the production of cigarette enterprises can be effectively assisted, and beneficial technical supports are provided for the guarantee of the cigarette tobacco quality and the stability of the process production.

Description

technical field [0001] The invention belongs to the field of quality control of cigarette products, and specifically relates to a method of collecting the full-spectrum molecular spectrum of finished shredded tobacco, combined with principal component analysis and HotellingT 2 Statistical methods A method for analyzing trends in the quality of cigarette shredded tobacco. Background technique [0002] With the improvement of cigarette level and the implementation and continuous advancement of the lean R&D strategy, the issues and tasks of quality improvement, consumption reduction, and efficiency increase faced by cigarette industry enterprises have become increasingly tense and urgent. Continuously improving the quality of products is the fundamental guarantee for enterprises to participate in comprehensive competition under the new economic normal. Under the new historical conditions, quality has new manifestations in its connotation and extension, that is, the stability a...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N21/33G01N21/359G01N21/65G06T7/00
CPCG01N21/31G01N21/33G01N21/359G01N21/65G06T7/0004
Inventor 李超秦云华张承明李颖孔维松李娥贤李利君李响丽蒋次清邹楠唐杰李伟赵辉
Owner CHINA TOBACCO YUNNAN IND
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