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Calculation method for air permeability of cigarette paper

A technology of cigarette paper and air permeability, which is applied in the field of physical index measurement of cigarette paper, can solve the problems of large human error, cumbersome operation, and low precision of the instrument, and achieve the effect of low cost and good repeatability

Inactive Publication Date: 2018-07-27
CHINA TOBACCO GUANGDONG IND
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  • Abstract
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Problems solved by technology

[0003] Generally, the testing methods for air permeability of cigarette paper mainly include ISO method, Schober method and Bendtsen method, etc. The principle of the air permeability meter for this kind of testing method is simple, but the operation is cumbersome, the human error is large and the accuracy of the instrument is relatively low. Low

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  • Calculation method for air permeability of cigarette paper
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  • Calculation method for air permeability of cigarette paper

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a calculation method for air permeability of cigarette paper. The calculation method comprises the steps of establishing a cigarette paper model, measuring the thickness n, porosity epsilon and average aperture d1 of the cigarette paper, calulating to obtain a relational expression among cigarette paper porosity epsilon, thickness n, average aperture d1 and air permeabilityK through a Hagen-Poiseuille formula and a definition formula of porosity epsilon and air permeability K, and as a result, the air permeability K can be calculated through the porosity epsilon and thickness n of the cigarette paper. The calculation method provided by the invention is fast, simple and practicable, and is good in repeatability and low in cost.

Description

technical field [0001] The invention relates to the technical field of measuring physical indexes of cigarette paper, in particular to a method for calculating air permeability of cigarette paper. Background technique [0002] Air permeability is an important physical index of cigarette paper. In the research and development and quality control of some products, it is necessary to accurately measure the air permeability of paper, especially in the tobacco industry. The smoke produced by burning cigarettes contains tar, nicotine and other substances that are harmful to health. Tobacco researchers have found that the use of high-permeability cigarette paper can help dilute and reduce the smoke inhaled into the human body while maintaining the stability of the taste of cigarettes. Therefore, , the air permeability of cigarette paper must be strictly tested and controlled. [0003] Generally, the testing methods for air permeability of cigarette paper mainly include ISO method,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/08
Inventor 吴君章黄翼飞陈森林曾健孔浩辉李基成
Owner CHINA TOBACCO GUANGDONG IND