CN102519819A - Method for measuring mixing uniformity of tobacco shreds of cigarettes - Google Patents
Method for measuring mixing uniformity of tobacco shreds of cigarettes Download PDFInfo
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- CN102519819A CN102519819A CN2011103199526A CN201110319952A CN102519819A CN 102519819 A CN102519819 A CN 102519819A CN 2011103199526 A CN2011103199526 A CN 2011103199526A CN 201110319952 A CN201110319952 A CN 201110319952A CN 102519819 A CN102519819 A CN 102519819A
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Abstract
The invention discloses a method for measuring the mixing uniformity of tobacco shreds of cigarettes, comprising the following steps: (1) selecting expanded tobacco shreds as tracers; (2) sampling; (3) separating; (4) drying; and (5) calculating the mixing uniformity. The use of the expanded tobacco shreds as the tracers has the following advantages that 1, the particle size and the distribution uniformity of the expanded tobacco shreds have little difference from other tobacco shreds, thus the expanded tobacco shreds can well represent the motion of the integral body, and can be used as the tracers; 2, the expanded tobacco shreds are one of common raw materials of a cigarette formula, and most cigarette formulas contain more than 3% of the expanded tobacco shreds; and 3, the expanded tobacco shreds have much smaller density than leaf shreds, stem shreds and papermaking sheet tobacco shreds, thus the expanded tobacco shreds can be completely separated by using the density difference through floating method. The separation solution used in the invention is a non-polar solution, thus the density changes of the components of the tobacco shreds caused by the intersolubility of the separation solution and the water in the tobacco shreds are avoided. The method has high measuring precision, and the precision is 0.08-0.66 %.
Description
Technical field
The present invention relates to technical field of tobacco processing, be specifically related to a kind of assay method of cigarette shreds mixture homogeneity.
Background technology
Mix the solid particle typically refer to different physics and chemical property in the uniform process of space distribution.
There is many places mixed process in the processing tobacco process, like roller drying, perfuming, process such as roll.The mixing of solid material runs through tobacco processing course all the time, and the effect of mixing is good more, and the physics of product and aesthetic quality's stability are also good more.
Uniformity coefficient or degree of mixing are the important indicators of weighing mixed effect.Chinese patent " based on the in-situ check and test method of the quality of deep-cement-mixed soil of mixture homogeneity " (CN1766642) has been introduced the method that a kind of evaluation mixes native homogeneity and then estimates the total quality of cement mixing soil; This method is through measuring the pH value of composite soil, than (pH value greater than 10 count/total number of test points) * 100% as the mixture homogeneity index.
Chinese patent " a kind of method that detects the different material mixture homogeneity " (CN1967213) has been introduced a kind of method of detection of drugs preparation mixture homogeneity; This method adopts irreflexive mensuration mode to obtain near infrared spectrum data; Adopt the subsidiary mathematics manipulation software of near infrared spectrometer; The near infrared spectrum data that obtains is carried out first order derivative handle, adopt the similarity matching method to calculate the similarity numerical value between the sample then, estimate the uniformity coefficient of mixing with similarity numerical value.
Wang Yi etc. think that the sugared alkali of tobacco can characterize the degree of mixing preferably than the coefficient of variation, and have set up the method for describing mixture homogeneity with the candy alkali ratio coefficient of variation of tobacco and goods thereof, i.e. mixture homogeneity T=100%-CV%, and wherein CV is the coefficient of variation.
More than disclosed 3 kinds of methods mainly be to utilize chemical constitution part of measurand to define and characterize mixture homogeneity.But complex chemical composition of tobacco (kind more than 5000) and instability; The undulatory property of self chemical constitution will be covered the otherness that material is formed; Like the coefficient of variation of the reducing sugar of common raw tobacco material and nicotine 20% ~ 40%; And in process of production, operations such as drying, perfuming all can cause the change of chemical constitution such as sugar, alkali and undulatory property thereof, therefore can not truly characterize the uniformity coefficient of cigarette process through the method that detects chemical constitution.
Summary of the invention
The object of the invention proposes a kind of assay method of cigarette process mixture homogeneity just to the importance of above-mentioned cigarette process mixture homogeneity and the deficiencies such as uniformity coefficient that existing related detecting method can not truly reflect the cigarette process.
The objective of the invention is to realize through following technical scheme:
The assay method of cigarette shreds mixture homogeneity of the present invention comprises the steps:
(1) chooses expanded cut tobacco as tracer:, then expanded cut tobacco is directly carried out step (2) as tracer if contain expanded cut tobacco in the test cigarette composition; Otherwise, mix timing at pipe tobacco and mix a certain amount of expanded cut tobacco as tracer by >=3% formula rate;
(2) sampling: in batch of production time, cigarette machine outlet constant duration sampling 10-30 time, the 3-40 that at every turn takes a sample props up cigarette or 1-2 bag;
(3) separate: the pipe tobacco during the cigarette of will at every turn taking a sample props up strips out, and utilizes the solution floating method to isolate the tracer expanded cut tobacco in the pipe tobacco; Concrete mode is following: whole pipe tobaccos that will separate are put into the container that fills a certain amount of solution, treat other taking-up respectively that cuts filler with upper strata expanded cut tobacco and lower floor after the complete layering of pipe tobacco in the container.
(4) oven dry: the expanded cut tobacco that each sample separation is come out cuts filler with other and puts into baking oven, and baking 2 hours is to over dry under 100 ℃ of conditions;
(5) calculate mixture homogeneity: the expanded cut tobacco in each sample of weighing and other quality that cuts filler respectively; Calculate expanded cut tobacco butt degree in each sample, the coefficient of variation of calculating institute's sample thief expanded cut tobacco butt degree is the pipe tobacco mixture homogeneity.
Described expanded cut tobacco apparent density≤0.7g/m
3(be generally 0.5-0.6 g/cm
3);
Described solution is non-polar solution, and density is at 0.7-0.9 g/cm
3, this non-polar solution can be cyclohexane or ethyl acetate.
Advantage of the present invention:
(1) the present invention adopts the expanded cut tobacco thing that serves as a mark, and its benefit has: 1. the difference of the particle diameter of expanded cut tobacco and distributing homogeneity thereof and other pipe tobacco is little, can be good at representing whole motion, can be used as label.2. expanded cut tobacco contains the expanded cut tobacco more than 3% for one of cigarette composition raw material commonly used in most cigarette compositions.3. the density of expanded cut tobacco is 0.5-0.6g/cm
3, (density is 1.0-1.2 g/cm than leaf silk
3), (density is 1.0-1.2 g/cm to stem
3), (density is 1.2-1.3 g/cm to the paper process tobacco flake
3) all want much little, therefore utilize the difference of density to adopt floating method can expanded cut tobacco be separated fully.
Therefore (2) the used separation solution of the present invention is a non-polar solution, and water is polar molecule, and the two is immiscible liquid, has avoided water in separation solution and the pipe tobacco to dissolve each other each component tobacco density that cuts filler is changed.
(3) measuring accuracy of the present invention is high, and the precision scope is at 0.08%-0.66%.
Embodiment
The present invention combines following examples to further specify:
Embodiment:
With certain two trade mark cigarette A of enterprise, B is example, measures the pipe tobacco mixture homogeneity of its final products:
Assay method based on a kind of cigarette shreds mixture homogeneity of the present invention comprises five steps such as adding expanded cut tobacco, sampling, expanded cut tobacco separation, oven dry, calculating uniformity coefficient, and each concrete steps is following:
(1) add expanded cut tobacco: table 1 is depicted as A, B trade mark cigarette composition, all contain expanded cut tobacco in two cigarette trades mark, and the density of expanded cut tobacco is respectively 0.56g/cm
3, 0.52g/cm
3, therefore need not add separately, but direct sample;
(2) sampling: the time of A, the B trade mark one batch materials is respectively 6h and 10h, gets 1 bag at every respectively separated 24min of cigarette machine outlet and 40min, respectively gets 15 bags;
(3) expanded cut tobacco separates: two pipe tobaccos in the every winding cigarette of the trade mark of get are stripped out, put into and fill cyclohexane (non-polar solution, density: 0.78g/cm
3) container in, leave standstill 3 minutes after expansion pipe tobaccos and separate fully with other pipe tobacco, upper strata expanded cut tobacco and other pipe tobacco of lower floor are taken out respectively;
(4) oven dry: the expanded cut tobacco that each sample separation of A, the B trade mark is come out and other cut filler and put into baking oven, and baking 2h is to over dry under 100 ℃ of conditions;
(5) calculate mixture homogeneity: expanded cut tobacco and other quality that cuts filler in weighing A, each sample of B respectively; Calculate in each sample very ratio content of expanded cut tobacco butt; The calculating institute sample thief expanded cut tobacco butt very coefficient of variation of ratio content is the pipe tobacco mixture homogeneity; As shown in table 2, the uniformity coefficient of A, the B trade mark is respectively 6.88%, 5.51%.
Table 1
| The trade mark | Swollen silk (%) | Leaf silk (%) | Stem (%) | Paper process tobacco flake (%) |
| A | 10.00 | 74.56 | 10.00 | 5.44 |
| B | 6.35 | 83.65 | 10.00 | - |
Table 2
Claims (5)
1. the assay method of a cigarette shreds mixture homogeneity, it is characterized in that: concrete steps are following:
(1) chooses expanded cut tobacco as tracer:, then expanded cut tobacco is directly carried out step (2) as tracer if contain expanded cut tobacco in the test cigarette composition; Otherwise, mix timing at pipe tobacco and mix a certain amount of expanded cut tobacco as tracer by >=3% formula rate;
(2) sampling: in batch of production time, cigarette machine outlet constant duration sampling 10-30 time, the 3-40 that at every turn takes a sample props up cigarette or 1-2 bag;
(3) separate: the pipe tobacco during the cigarette of will at every turn taking a sample props up strips out, and utilizes the solution floating method to isolate the tracer expanded cut tobacco in the pipe tobacco;
(4) oven dry: the expanded cut tobacco that each sample separation is come out cuts filler with other and puts into baking oven, and baking 2 hours is to over dry under 100 ℃ of conditions;
(5) calculate mixture homogeneity: the expanded cut tobacco in each sample of weighing and other quality that cuts filler respectively; Calculate expanded cut tobacco butt degree in each sample, the coefficient of variation of calculating institute's sample thief expanded cut tobacco butt degree is the pipe tobacco mixture homogeneity.
2. the assay method of cigarette shreds mixture homogeneity according to claim 1 is characterized in that: described expanded cut tobacco apparent density≤0.7g/cm
3
3. the assay method of cigarette shreds mixture homogeneity according to claim 1; It is characterized in that: the solution floating method is separated and to be meant: whole pipe tobaccos that will separate are put into the container that fills a certain amount of solution, treat other taking-up respectively that cuts filler with upper strata expanded cut tobacco and lower floor after the complete layering of pipe tobacco in the container.
4. according to the assay method of claim 1 or 3 described cigarette shreds mixture homogeneities, it is characterized in that: the solution in the step (3) is non-polar solution, and density is at 0.7-0.9 g/cm
3
5. the assay method of cigarette shreds mixture homogeneity according to claim 4 is characterized in that: non-polar solution can be cyclohexane or ethyl acetate.
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|---|---|---|---|
| CN 201110319952 CN102519819B (en) | 2011-10-20 | 2011-10-20 | Method for measuring mixing uniformity of tobacco shreds of cigarettes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110319952 CN102519819B (en) | 2011-10-20 | 2011-10-20 | Method for measuring mixing uniformity of tobacco shreds of cigarettes |
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|---|---|
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| CN102519819B CN102519819B (en) | 2013-07-10 |
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|---|---|---|---|---|
| CN103149113A (en) * | 2012-09-05 | 2013-06-12 | 江苏中烟工业有限责任公司 | Method for determining cut stem proportion in cut tobacco |
| CN103323312A (en) * | 2013-07-18 | 2013-09-25 | 中国烟草总公司郑州烟草研究院 | Separator for expanded cut tobacco in formula cut tobacco |
| CN103969216A (en) * | 2013-01-28 | 2014-08-06 | 福建中烟工业有限责任公司 | A near infrared spectroscopy method for rapid detection of a blending ratio of expanded cut tobacco and cut leaf tobacco in the process of making cut tobacco |
| CN104166803A (en) * | 2014-08-19 | 2014-11-26 | 云南中烟工业有限责任公司 | Method for representing distribution evenness of tobacco shred structures |
| CN104182629A (en) * | 2014-08-19 | 2014-12-03 | 云南中烟工业有限责任公司 | Method for characterizing comprehensive stability of physical indexes of cigarettes on basis of principle component analysis |
| CN104266925A (en) * | 2014-08-06 | 2015-01-07 | 江苏中烟工业有限责任公司 | Detection method of cigarette tobacco leaf group mixedness |
| CN105043919A (en) * | 2015-07-14 | 2015-11-11 | 山东中烟工业有限责任公司 | Method for measuring blending uniformity of mixed cut tobacco |
| CN106111344A (en) * | 2016-07-06 | 2016-11-16 | 云南瑞升烟草技术（集团）有限公司 | A kind of separate the method for thread stem in formula leaf group |
| CN106153835A (en) * | 2016-08-30 | 2016-11-23 | 云南中烟工业有限责任公司 | A kind of method using Euclidean distance to judge papermaking-method reconstituted tobaccos pulp fiber distribution consistency degree |
| CN106198078A (en) * | 2016-07-11 | 2016-12-07 | 中国烟草总公司郑州烟草研究院 | A kind of can be quantitative roller frame optimizing evaluation method |
| CN106442575A (en) * | 2016-04-11 | 2017-02-22 | 红云红河烟草(集团)有限责任公司 | Formula modular distribution method of cigarette tobacco analysis and inspection |
| CN106896032A (en) * | 2017-03-23 | 2017-06-27 | 云南中烟工业有限责任公司 | A kind of pipe tobacco, stem, reconstituted tobacco of determining cuts filler the method for uniformity |
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| CN109187886A (en) * | 2018-10-16 | 2019-01-11 | 湖北中烟工业有限责任公司 | A kind of detection method of raw material of cigarette mixture homogeneity |
| CN111737643A (en) * | 2020-06-05 | 2020-10-02 | 红云红河烟草(集团)有限责任公司 | Method for measuring structural distribution stability of cut tobacco |
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| CN112526080A (en) * | 2020-12-30 | 2021-03-19 | 湖北中烟工业有限责任公司 | Method for judging quality uniformity of vane type tobacco flakes |
| CN112931915A (en) * | 2021-04-30 | 2021-06-11 | 河南中烟工业有限责任公司 | Blending uniformity detection method for tobacco components in leaf group |
| CN114324764A (en) * | 2021-12-30 | 2022-04-12 | 红云红河烟草(集团)有限责任公司 | Multi-dimensional evaluation method for product quality in cigarette shredding process based on material characteristic value |
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| CN103323312A (en) * | 2013-07-18 | 2013-09-25 | 中国烟草总公司郑州烟草研究院 | Separator for expanded cut tobacco in formula cut tobacco |
| CN103323312B (en) * | 2013-07-18 | 2015-05-27 | 中国烟草总公司郑州烟草研究院 | Separator for expanded cut tobacco in formula cut tobacco |
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| CN112931915A (en) * | 2021-04-30 | 2021-06-11 | 河南中烟工业有限责任公司 | Blending uniformity detection method for tobacco components in leaf group |
| CN112931915B (en) * | 2021-04-30 | 2022-10-25 | 河南中烟工业有限责任公司 | Method for detecting blending uniformity of tobacco components in leaf group |
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Effective date of registration: 20130926 Address after: High tech Zone Fengyang street 450001 Henan city of Zhengzhou province No. 2 Patentee after: Zhengzhou Tobacco Research Institute of CNTC Patentee after: China Tobacco Fujian Industrial LLC Address before: High tech Zone Fengyang street 450001 Henan city of Zhengzhou province No. 2 Patentee before: Zhengzhou Tobacco Research Institute of CNTC |