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Filter tip trapped nicotine concentration distribution pattern measuring method

A concentration distribution and filter technology, which is applied in the field of cigarette technology research, can solve the problems of intercepted nicotine distribution mode and no filter.

Inactive Publication Date: 2013-09-11
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the above is to evaluate the filtering effect of various filters on smoke components through smoke analysis. At present, there is no research report on the distribution mode of nicotine intercepted by filters in filters.

Method used

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  • Filter tip trapped nicotine concentration distribution pattern measuring method
  • Filter tip trapped nicotine concentration distribution pattern measuring method
  • Filter tip trapped nicotine concentration distribution pattern measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Method for determination of longitudinal distribution pattern of four kinds of filter-tipped nicotine concentration

[0035] According to the relationship between the nicotine loss rate Y and the cutting area X of the radial cutting of the filter Y=0.033X*100% (X: mm 2 ), the nicotine loss rate of one radial cut is about 1.5%. However, in order to avoid the influence of the high nicotine loss rate on the accuracy of the longitudinal distribution pattern of nicotine caused by the high nicotine loss rate when the filter is cut in multiple equal parts at the same time, multiple filters are cut twice in the radial direction with unequal distances, and the cutting Quantitative analysis of the nicotine in the last two sections of the filter is carried out, and the nicotine interception and nicotine concentration of each part in the longitudinal direction of the filter are obtained by calculation, and polynomial fitting is carried out on the change law of the nicotine concentr...

Embodiment 2

[0037] Method for determination of concentration cross-sectional radial distribution pattern of four kinds of filter-tipped nicotine

[0038] In the research on the radial distribution of nicotine intercepted by the filter tip, on the basis of cutting the filter tip into three equal parts radially, the filter tip was cut radially with different radii in longitudinal concentric circles. Because the diameter of the filter tip is only about 7.6mm, only two concentric circles with different radii are cut in the radial direction, that is, R 1 =1.26mm, R 2 =2.52mm. Separately analyze the nicotine content in the inner and outer parts of the filter after cutting (the three-section filter is combined), and after calculation and correction using the relationship model between the radial cutting nicotine loss rate and the cutting area, the filter can be obtained, etc. The amount of nicotine intercepted and the concentration of nicotine in the inner, middle and outer distances. The pol...

Embodiment 3

[0040] Determination method of concentration spatial distribution pattern of four kinds of filter-tipped nicotine

[0041] The research results of longitudinal and radial distribution patterns of filter-tipped nicotine can provide information on the concentration distribution of filter-tipped nicotine in the longitudinal direction and cross-sectional radial direction, respectively. However, it cannot simultaneously display the concentration distribution information of the nicotine intercepted by the filter in the longitudinal direction and the radial direction of the cross section. Obtaining the nicotine distribution information in the longitudinal and radial directions of the filter at the same time, that is, the spatial distribution pattern of nicotine in the filter, can more comprehensively reflect the real pattern of smoke intercepted by the filter. Firstly, cut the three radial parts of the filter into three sections, namely the shredded tobacco section, the middle sectio...

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Abstract

The invention discloses a filter tip trapped nicotine concentration distribution pattern measuring method which comprises the following steps: concentrically cutting a sucked filter tip along the axis after radially cutting with a laser, or radially cutting a sucked filter tip after concentrically cutting along the axis; after finishing cutting, separating the annular filter tip sections from the corresponding number of cylindrical filter tip sections, carrying out quantitative analysis on the nicotine content in the cut and separated filter tip sections; and after calculating the nicotine concentration, carrying out polynomial fitting on filter tip trapped nicotine concentration distribution data, or carrying out polynomial fitting and interpolation analysis to obtain the filter tip trapped nicotine concentration distribution pattern. By measuring the longitudinal, cross section radial and spatial distribution pattern of different filter tip trapped nicotine concentrations, the invention can master the filtration trapped distribution characteristics of nicotine in filter tips in different structures, can quantitatively analyze the nicotine trapping efficiency and contribution of all parts of filter tips in different structures in flue gas, and can be used for evaluation of flue gas nicotine filtering quality of functional filter tips and design improvement of the functional filter tips.

Description

technical field [0001] The invention relates to a method for measuring the concentration distribution pattern of nicotine intercepted by a filter tip, and belongs to the field of cigarette technology research. Background technique [0002] Cigarette filters can effectively intercept tar and other harmful components in mainstream smoke. When developing low-tar cigarette products, improving the smoke retention efficiency of filters is often the first choice of researchers. With the continuous expansion of the market for low-tar and ultra-low-tar cigarette products, more and more researches have been conducted on the interception efficiency, interception law and interception mechanism of various components in mainstream smoke by filters of various materials and specifications. Pay attention to. Keith first studied the mechanism of smoke filtering by filters, and the research results showed that there are three main ways of filtering smoke particles in filters: inertial collis...

Claims

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Application Information

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IPC IPC(8): G01N15/06G01N15/08
Inventor 文建辉杜文钟科军彭斌张晓兵刘惠民
Owner CHINA TOBACCO HUNAN INDAL CORP
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