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Test and evaluation method of density of fibers sucked from cigarettes or filter sticks

An evaluation method and fiber technology, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as harmfulness, and achieve the effect of simple method, easy promotion and easy operation

Inactive Publication Date: 2012-11-21
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no relevant detection method for the test of the short fiber concentration of cigarette filters or cigarette filter sticks. Therefore, it is necessary to propose a simple, fast and accurate method for testing the concentration of short fibers drawn from cigarettes or filter sticks, so as to facilitate Evaluate whether the concentration of fibers extracted from cigarette filters or cigarette filter rods is harmful to human body

Method used

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  • Test and evaluation method of density of fibers sucked from cigarettes or filter sticks
  • Test and evaluation method of density of fibers sucked from cigarettes or filter sticks
  • Test and evaluation method of density of fibers sucked from cigarettes or filter sticks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Cut the organic microporous filter membrane with a pore size of 20 μm into the same shape as the filter of the smoking machine;

[0039] 2. Cover the cut filter membrane on the filter sheet of the single-hole smoking machine, place the side with the filter membrane facing the cigarette, and insert a filter stick into the hole;

[0040] 3. Set the suction capacity of the smoking machine to 35 ml / mouth, set the suction time to 3s / mouth, and perform 10 mouthfuls of suction on the filter stick;

[0041] 4. After stopping the suction, take out the filter piece and filter membrane, carefully separate the filter membrane from the filter piece, then put the filter membrane between two clean glass plates, and divide three areas on the glass plate;

[0042] 5. Observe the fibers on the filter membrane under a microscope with a magnification of 30 times, and count the fibers in the three regions respectively. The total number of fibers on the filter membrane is 6. The schematic...

Embodiment 2

[0047] 1. Cut the organic microporous filter membrane with a pore size of 25 μm into the same shape as the filter of the suction device;

[0048] 2. Cover the cut filter membrane on the filter of the suction device, and place the side with the filter membrane facing the cigarette;

[0049] 3. Set the suction capacity of the suction device to 35 ml / puff, set the suction time to 4 s / puff, and smoke a cigarette for 10 puffs without lighting the cigarette;

[0050] 4. After stopping the suction, take out the filter piece and filter membrane, carefully separate the filter membrane from the filter piece, then put the filter membrane between two clean glass plates, and divide three areas on the glass plate;

[0051] 5. Observe the fibers on the filter membrane under a microscope with a magnification of 40 times, and count the fibers in the three regions respectively. The total number of fibers on the filter membrane is 3. The schematic diagram is shown in image 3 ;

[0052] 6. Acc...

Embodiment 3

[0054] 1. Cut the microporous filter membrane with a pore size of 30 μm into the same shape as the filter of the smoking machine;

[0055] 2. Cover the cut filter film on the filter of the linear multi-channel smoking machine, place the side with the filter film facing the cigarette, and insert the cigarette into the channel with the filter;

[0056] 3. Set the suction volume of the cigarette machine to 55 ml / puff, set the puff time to 3s / puff, and smoke a cigarette for 20 puffs without lighting the cigarette;

[0057] 4. After stopping the suction, take out the filter piece and filter membrane, carefully separate the filter membrane from the filter piece, then put the filter membrane between two clean glass plates, and divide three areas on the glass plate;

[0058] 5. Observe the fibers on the filter membrane under a microscope with a magnification of 30 times, and count the fibers in the three regions respectively. The total number of fibers on the filter membrane is 10. The ...

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Abstract

A test and evaluation method of density of fibers sucked from cigarettes or filter sticks is characterized in that a millipore filter is covered on the surface of a filtering piece of a suction device, corresponding parameter is adopted on the suction device to conduct suction on the cigarettes or the filter sticks, a microscope is utilized to observe the number of silk fibers on the catching face of the filter after suction is finished, and ratio of the number of the fibers on the filter and the suction total capacity is utilized to calculate the density of the fibers sucked from the cigarettes or the filter sticks. The test and evaluation method has the advantages of being capable of intuitively calculating the density of the fibers sucked from the certain amount of cigarettes or filter sticks, being capable of obtaining size information of the fibers while quantitatively calculating the density of the fibers and being simple, convenient to operate and easy to popularize.

Description

technical field [0001] The invention relates to the technical field of performance evaluation of cigarettes and tobacco materials, in particular to a method for testing and evaluating the concentration of fibers or fibers drawn from cigarette filters or filter sticks for cigarettes. Fiber or staple fiber concentration. Background technique [0002] Cigarette filter or cigarette filter rod is made of tobacco tow, plant fiber, filter rod forming paper, etc. as the main raw materials, and is made into a cylindrical rod that can filter cigarette smoke through processing, rolling, slitting and other processes , for processing filter cigarettes. The main filling material of the filter rod is diacetate fiber tow, polypropylene fiber tow or other man-made fibers. These rayon tow fibers are flexible continuous and elongated fibers. A whole, generally speaking, is not easily sucked out of a cigarette filter. However, since the production process of the filter tip is to loosen the c...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 周明珠董浩庞永强王锦平荆熠姜兴益刘锋邢军周德成李晓辉
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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