CN103344578A - Method for measuring color of tobacco - Google Patents
Method for measuring color of tobacco Download PDFInfo
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- CN103344578A CN103344578A CN2013102948184A CN201310294818A CN103344578A CN 103344578 A CN103344578 A CN 103344578A CN 2013102948184 A CN2013102948184 A CN 2013102948184A CN 201310294818 A CN201310294818 A CN 201310294818A CN 103344578 A CN103344578 A CN 103344578A
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- tobacco
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- tobacco leaf
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- measuring
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Abstract
The invention discloses a method for measuring color of tobacco. The method comprises the following steps of: removing main vein tobacco tendons from tobacco to be measured, placing in an oven, baking for 2-3h at a temperature of 60 DEG C, grinding the dried tobacco into powder, screening with a 40-mu sieve for later use; then selecting a color measuring hole with an aperture L being 0.8mm by using a colorimeter, carrying out black and white correction under the determination condition of a light source and a determination angle of D65/10 and SCE (specular excluded ) comprising a mirror surface component, measuring lightness, redness and yellowness of the tobacco powder by adopting an aberration formula CIE1976LAB, and measuring each sample for three times, and taking the average value. According to the method, the tobacco to be tested is dried and ground into powder, and is measured by using a high-precision colorimeter, the color of the surface of the collected tobacco is changed into a color of the measured tobacco powder, the color of the tobacco can be fully reflected so that the characteristic value of the measured color of the tobacco is closer to an actual value; and meanwhile, the defect of wrinkles of the tobacco is overcome, and the method is more rapid to measure.
Description
Technical field
The present invention relates to relate to a kind of measuring method of tobacco leaf color, can realize the measurement quick and precisely to tobacco leaf color, and surface color is carried out quantitative analysis.
Background technology
At present, tobacco leaf color is carried out quantitative analysis, be mostly to adopt acquisition technology that the color of tobacco leaf surface is gathered or choose several points in tobacco leaf surface master pulse both sides, use color difference meter to measure, choose mean value at last.But in the middle of practical operation, because tobacco leaf surface irregular colour, not of uniform size, the measurement point of choosing can not represent the color characteristic of whole tobacco leaf, and the accuracy of measurement is descended.Simultaneously, because the tobacco leaf fold has increased the difficulty in measuring process.
Therefore, the measurement of tobacco leaf needs a kind of convenient, measuring method accurately.
Summary of the invention
The present invention is in order to overcome the above-mentioned shortcoming that exists in the prior art, and a kind of convenient, measuring method of tobacco leaf color accurately of measuring is provided.
For achieving the above object, the technology used in the present invention solution is: a kind of measuring method of tobacco leaf color, tobacco leaf to be measured is removed master pulse cigarette muscle, and be put in the baking oven, 60 ℃ of baking 2～3h clay into power the tobacco leaf of oven dry, cross 40 mesh sieves, and are standby; Utilize color difference meter then, select colour examining aperture L=0.8mm, comprise under the condition determination of minute surface composition with mensuration angle D65/10 and SCE at light source, carry out black and white version and proofread and correct, adopt colour difference formula CIE1976LAB to measure lightness, red degree, the yellow degree of offal, each sample measurement is got its mean value 3 times.
The invention has the beneficial effects as follows: with tobacco leaf drying pulverising mill powdered to be measured, measure with high-precision color difference meter, the color of gathering tobacco leaf surface is changed into the color of measuring offal, the color of tobacco leaf can embody fully, make the tobacco leaf color eigenwert of measuring more near actual value, simultaneously, overcome the shortcoming of tobacco leaf fold, made measurement more quick.
Embodiment
A kind of measuring method of tobacco leaf color is removed master pulse cigarette muscle with tobacco leaf to be measured, is put in the baking oven, and 60 ° of design temperatures, stoving time are two to three hours.The tobacco leaf of oven dry is clayed into power, cross 40 mesh sieves, standby.Utilize color difference meter then, select colour examining aperture L (0.8mm), under D65/10 (refer to light source and measure the angle) and SCE (referring to comprise the mensuration of minute surface composition) condition, carrying out black and white version proofreaies and correct, adopt colour difference formula CIE1976LAB to measure lightness (L*), red degree (a*), the yellow degree (b*) of offal, each sample measurement is got its mean value 3 times.
The present invention has overcome the inconvenience that the measurement tobacco leaf brings in flue-cured tobacco color measuring process, tobacco leaf is clayed into power, carry out color measuring, though tobacco leaf has been carried out oven dry to be pulverized, but the color feature value that draws is more near actual value, and repeatability is better also more convenient in actual mechanical process.
The above is the specific embodiment of the present invention only, is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that this patent discloses, and can expect easily changing or replacing, and all should be encompassed within protection scope of the present invention.
Claims (1)
1. the measuring method of a tobacco leaf color is characterized in that: tobacco leaf to be measured is removed master pulse cigarette muscle, be put in the baking oven, 60 ℃ of baking 2～3h clay into power the tobacco leaf of oven dry, cross 40 mesh sieves, and are standby; Utilize color difference meter then, select colour examining aperture L=0.8mm, comprise under the condition determination of minute surface composition with mensuration angle D65/10 and SCE at light source, carry out black and white version and proofread and correct, adopt colour difference formula CIE1976LAB to measure lightness, red degree, the yellow degree of offal, each sample measurement is got its mean value 3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102948184A CN103344578A (en) | 2013-07-15 | 2013-07-15 | Method for measuring color of tobacco |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102948184A CN103344578A (en) | 2013-07-15 | 2013-07-15 | Method for measuring color of tobacco |
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| CN103344578A true CN103344578A (en) | 2013-10-09 |
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| CN2013102948184A Pending CN103344578A (en) | 2013-07-15 | 2013-07-15 | Method for measuring color of tobacco |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743918A (en) * | 2014-01-09 | 2014-04-23 | 云南烟草科学研究院 | Determination method and device of tobacco stem carbonization degree |
| CN104833607A (en) * | 2015-04-27 | 2015-08-12 | 鑫统领建材集团有限公司 | Testing method of residual rate of macromonomer of polycarboxylic acid water-reducing agent |
| CN106644968A (en) * | 2016-09-13 | 2017-05-10 | 中国烟草总公司广东省公司 | Method for measuring total amount of amino acids in tobacco leaves damaged by pesticides |
| CN107341807A (en) * | 2017-06-07 | 2017-11-10 | 北京科技大学 | A kind of method for extracting tobacco leaf color digital expression characteristic value |
| CN108801463A (en) * | 2018-06-12 | 2018-11-13 | 云南中烟工业有限责任公司 | A kind of radium-shine cigarette-brand color difference measuring device |
| CN113138023A (en) * | 2021-04-08 | 2021-07-20 | 河南中烟工业有限责任公司 | Method for measuring color index of cut tobacco |
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| JPS5339176A (en) * | 1976-09-22 | 1978-04-10 | Omron Tateisi Electronics Co | Measuring method for yellowed degree of tobacco leaf |
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| CN202281650U (en) * | 2011-10-24 | 2012-06-20 | 贵州省烟草科学研究所 | Plant leaf color detection device |
| CN102798596A (en) * | 2012-08-06 | 2012-11-28 | 红云红河烟草(集团)有限责任公司 | Method for evaluating quality stability of redried finished sheet tobacco |
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| JPS58190384A (en) * | 1982-04-30 | 1983-11-07 | 富士写真フイルム株式会社 | Color code for managing dried tobacco leaves |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743918A (en) * | 2014-01-09 | 2014-04-23 | 云南烟草科学研究院 | Determination method and device of tobacco stem carbonization degree |
| CN103743918B (en) * | 2014-01-09 | 2015-05-27 | 云南烟草科学研究院 | Determination method and device of tobacco stem carbonization degree |
| CN104833607A (en) * | 2015-04-27 | 2015-08-12 | 鑫统领建材集团有限公司 | Testing method of residual rate of macromonomer of polycarboxylic acid water-reducing agent |
| CN106644968A (en) * | 2016-09-13 | 2017-05-10 | 中国烟草总公司广东省公司 | Method for measuring total amount of amino acids in tobacco leaves damaged by pesticides |
| CN107341807A (en) * | 2017-06-07 | 2017-11-10 | 北京科技大学 | A kind of method for extracting tobacco leaf color digital expression characteristic value |
| CN107341807B (en) * | 2017-06-07 | 2020-05-12 | 北京科技大学 | Method for extracting tobacco leaf color digital expression characteristic value |
| CN108801463A (en) * | 2018-06-12 | 2018-11-13 | 云南中烟工业有限责任公司 | A kind of radium-shine cigarette-brand color difference measuring device |
| CN108801463B (en) * | 2018-06-12 | 2023-07-14 | 云南中烟工业有限责任公司 | Laser cigarette label color difference measuring device |
| CN113138023A (en) * | 2021-04-08 | 2021-07-20 | 河南中烟工业有限责任公司 | Method for measuring color index of cut tobacco |
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Application publication date: 20131009 |