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A Nondestructive and Rapid Method for Measuring Segmental Draw Resistance of Cigarettes

A cigarette, rapid technology, applied in the direction of tobacco, cigarette manufacturing, application, etc., can solve the problem of negative value of draw resistance

Active Publication Date: 2021-04-13
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the implementation, since it is assumed that the cigarette paper and the shredded tobacco section are connected in parallel (this relationship is only applicable to a certain range of use), it is easy to appear that a section of draw resistance shows a negative value during detection.

Method used

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  • A Nondestructive and Rapid Method for Measuring Segmental Draw Resistance of Cigarettes
  • A Nondestructive and Rapid Method for Measuring Segmental Draw Resistance of Cigarettes
  • A Nondestructive and Rapid Method for Measuring Segmental Draw Resistance of Cigarettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0034] The measurement results of the segmental draw resistance of a certain brand of slim cigarette (17mm) are as follows (the measurement method is to separate the cut tobacco segment and the filter tip segment and measure them separately): This sample has been tested 10 times in parallel, and the open draw resistance of the cut tobacco segment is 758 Pa , the standard deviation is 40Pa, the open suction resistance of the filter section is 829Pa, and the standard deviation is 33Pa. The specific operation steps of the method embodiment of the present invention are as follows:

[0035] Step 1: The cigarette sample: 17.5mL / s is subjected to the suction resistance test of the closed cigarette paper part and the closed filter vent hole. The method is to use 3M-scotch tape to wrap the cigarette paper and the filter vent hole to obtain the corresponding parallel Under 10 test conditions, the smoking resistance value of the cigarette is 2147Pa, and the standard deviation is 24Pa. At t...

Embodiment example 2

[0046] The measurement results of the segmental draw resistance of a certain brand of non-filter ventilated slim cigarette (17mm) are as follows (the measurement method is to separate the cut tobacco segment and the filter tip segment and then measure them separately): 10 parallel tests were performed on this sample, and the open smoking resistance of the shredded tobacco segment The resistance is 781 Pa, and the standard deviation is 35 Pa. The total suction resistance of the filter segment and the shredded tobacco wrapped by tipping paper is 949 Pa, and the standard deviation is 32 Pa. The specific operation steps of the method embodiment of the present invention are as follows:

[0047] Step 1: The cigarette sample: 17.5mL / s is subjected to the draw resistance test of the closed cigarette paper part. The method is to use 3M-clear tape to wrap the cigarette paper, and the cigarette draw resistance under the corresponding parallel test conditions of 10 times is 1885Pa, the st...

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Abstract

A non-destructive and rapid method for measuring the segmental draw resistance of cigarettes, based on the measurement of the total pressure drop and gas flow in no more than three states and the measurement of the position of the ventilation hole of the cigarette filter, based on the time when the cigarette smoke flows through The basic characteristics of flow conservation and "quasi-series connection" formed can realize the non-destructive and rapid measurement of the draw resistance of each segment of a cigarette without mechanical separation of the cigarette filter section and the cigarette branch section. The theoretical basis is that the fluid passes through the The pressure drop formed by the cigarette is proportional to the flow rate of the fluid flowing through the cigarette, and the ratio between the two is the cigarette permeability resistance. The draw resistance of each segment of the cigarette branch is obtained through the flow conservation relationship formed by the "quasi-series" method in multiple states. This method is easy to operate, and at the same time, the air distribution ratio of each segment of the cigarette varies less under different conditions, and has better linearity, so the measurement results obtained are more scientific, reasonable and accurate, and can be used for cigarette product quality traceability, product design and process Optimization provides effective support.

Description

Technical field: [0001] The invention relates to the technical field of cigarette quality detection, in particular to a non-destructive and rapid method for measuring segmental draw resistance of cigarettes. Background technique: [0002] Cigarette draw resistance is one of the important indicators of the physical quality of cigarette products, and its size has an important impact on the sensory quality and smoking difficulty of cigarette products. The measurement of the draw resistance of cigarettes usually adopts GB / T 22838.5-2009 "Determination of Physical Properties of Cigarettes and Filter Rods_Part 5: Cigarette Draw Resistance and Pressure Drop of Filter Rods", which can realize the fully automatic operation of cigarette draw resistance measurement With control, the above method realizes the measurement of cigarette open draw resistance and closed draw resistance. Through the measurement of cigarette draw resistance, we can know the quality of cigarettes and the level...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24C5/34
CPCA24C5/34
Inventor 李斌张明建王乐赵文康邓楠
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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