China Tobacco Fujian Industrial Co.

Xiamen, China

China Tobacco Fujian Industrial Co.

Xiamen, China
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Li S.,CAS Zhengzhou Research Institute | Zhang W.,China Tobacco Fujian Industrial Co. | Zhang C.,China Tobacco Yunnan Industrial Co. | Ding M.,China Tobacco Henan Industrial Co. | And 4 more authors.
Tobacco Science and Technology | Year: 2016

In order to improve the capability of process management and control in cigarette manufacturing, the methods of parameter quantitative characterization, monovariable parameter assessment and multivariate parameter assessment in cigarette manufacturing process were analyzed on the basis of technical standards and the principle of efficacy coefficient method. Where:1) Parameters could be quantitatively characterized by either deviation or dispersion, deviation reflected the degree that controlled value deviated from technical standard value and dispersion reflected the degree that the actual fluctuation satisfied the requirements of technical standards. 2)The assessment of monovariable parameter was conducted by expected target or extreme value; in the case of expected target, it was assessed by efficacy coefficient method after comprehensive conversion of deviation and dispersion by distance method; however, in the case of extreme value, it was assessed by efficacy coefficient method directly. 3)Multivariable comprehensive assessment applied to process step and batch. For process step assessment, monovariable arithmetic weighted method applied; and for batch process step, geometric weighted method applied. The industrial application showed that the method, by multi-dimensional quantitative analysis, provided an applicable, simple, intuitive and comprehensive assessment of process management and control in cigarette production. © 2016, Editorial Office of Tobacco Science and Technology. All right reserved.


Lu H.,China Tobacco Fujian Industrial Co. | Lin K.,China Tobacco Fujian Industrial Co. | Yu J.,Xiamen Tobacco Industrial Co. | Lai W.,China Tobacco Fujian Industrial Co. | Li Y.,China Tobacco Fujian Industrial Co.
Tobacco Science and Technology | Year: 2016

In order to evaluate the physical properties of paper-making process reconstituted tobacco comprehensively, the principle of traditional and zero-span tensile strength testers were analyzed, and the test results and the sectional microstructure of samples were compared. The results indicated that: 1) The mean tensile strength of reconstituted tobacco base-sheet samples was 0.21 kN/m in transversal direction (TD) and 0.48 kN/m in longitudinal direction (LD), and their mean breaking lengths were 2.54 mm in TD and 3.11 mm in LD. 2) The mean zero-span tensile strength of dry reconstituted tobacco base-sheet samples was 18.08 N/cm in TD and 28.31 N/cm (about 36.1% higher than 18.08 N/cm) in LD. After wetting treatment, the tensile strength decreased significantly both in TD and in LD. 3) The mean fiber length index of samples was 0.32 in LD, it was roughly 68.75% higher than 0.10 in TD. 4) The bonding power of fiber significantly differed between TD and LD, the fiber bonding index was 5.23 in LD and 1.61 in TD. The test results of traditional tensile strength tester agreed with those of zero-span tensile strength tester, however the latter reflected the physical and fiber properties of paper making process reconstituted tobacco more comprehensively. © 2016, Editorial Office of Tobacco Science and Technology. All right reserved.


Liao J.,Xiamen University | Li Q.,China Tobacco Fujian Industrial Co. | Chen G.,China Tobacco Fujian Industrial Co. | Deng X.,Xiamen University | And 3 more authors.
Tobacco Science and Technology | Year: 2016

In order to study the effects of heating rate on fast pyrolysis of cut filler of cigarette, TGA (Thermogravimetric Analyzer) combined with QMS (Quadrupole Mass Spectrometers) was applied to investigate the pyrolysis characteristics of cut filler of cigarette at different heating rates (200 K·min-1-800 K·min-1), and a kinetic model for the fast pyrolysis of cut filler at different heating rates was developed. The results showed that: 1) With the increase of heating rates, thermal decomposition overlap region, mass loss rate and devolatilization index of each main component in tobacco were raised. Meanwhile, thermal lags of different extents were also observed. 2) The kinetic model overcame the deviation of kinetic parameters caused by thermal lag via introducing a heating rate correction factor, and predicted the fast pyrolysis behaviors of cut filler at different heating rates more accurately. 3) The release of pyrolysis products, such as acrolein (m/z=56), pyridine (m/z=79), nicotine (m/z=84), phenol (m/z=94) and indole (m/z=117) decreased with the increase of heating rate. The fast pyrolysis characteristics of cut filler are closer to the real state of cigarette combustion and the developed mathematical model for tobacco pyrolysis kinetics is more accurate at high heating rate. © 2016, Editorial Office of Tobacco Science and Technology. All right reserved.


Zhang E.,CAS Zhengzhou Research Institute | Du J.,CAS Zhengzhou Research Institute | Jiang J.,China Tobacco Fujian Industrial Co. | Zhang W.,China Tobacco Fujian Industrial Co. | And 2 more authors.
Tobacco Science and Technology | Year: 2017

In order to investigate the gas/solid flow characteristics in CTD(Comas Tower Dryer), OpenFOAM, an open source hydrodynamics calculation software, was combined with high performance large scale parallel computing for solid particles to simulate the full three-dimensional gaseous flow field and particle residence time distribution in CTD numerically. Meanwhile, the variations of gas/solid flow fields before and after the installation of an arc deflection plate in CTD were comparatively analyzed. The results showed that solid particles unevenly distributed in the vertical duct in radial direction, there existed obvious dense phase area and dilute phase area. The arc deflection plate could improve the distribution of solid particles and allow tobacco distributed in the tower more evenly. The mean residence time of solid particles in CTD was reduced by 1.45 s after the installation of the arc deflection plate, and the variance of residence time distribution decreased significantly as well; which indicated that the residence time of tobacco particles was more uniform in the CTD with an arc deflection plate. © 2017, Editorial Office of Tobacco Science and Technology. All right reserved.


Bao K.,China Tobacco Fujian Industrial Co. | Lin J.,China Tobacco Fujian Industrial Co. | He W.,China Tobacco Fujian Industrial Co. | Chen S.,China Tobacco Fujian Industrial Co. | And 4 more authors.
Tobacco Science and Technology | Year: 2017

To investigate the differences of bacterial community structure among tobacco strips from different growing areas and stalk positions during aging, the bacterial 16S rDNA of strip samples of upper, middle and lower leaves from 4 areas (Youxi in Fujian, Zhanyi in Yunnan, Changshun in Guizhou and Queshan in Henan) during aging were sequenced by Illumina MiSeq. The results showed that 940 operational taxonomic units (OTUs) were obtained from 12 samples. The samples (C3F) from Youxi had the most abundant bacterial biodiversity. The dominant phyla in 12 samples were Proteobacteria, and the dominant genera in most samples were Sphingomonas. The Venn diagram of bacterial OTUs of strips from different areas during aging revealed that 195 of OTUs were common to the strips from 4 areas, the numbers of specific OTUs for Youxi, Zhanyi, Changshun and Queshan were 300, 9, 4 and 0, respectively. © 2017, Editorial Office of Tobacco Science and Technology. All right reserved.


Huang H.,China Tobacco Fujian Industrial Co. | Jiang J.,CAS Zhengzhou Research Institute | Liang H.,China Tobacco Fujian Industrial Co. | Liu X.,China Tobacco Fujian Industrial Co. | And 2 more authors.
Tobacco Science and Technology | Year: 2014

In order to improve the accuracy of measurement results, the uncertainty in determination of butyl acetate in tipping paper by headspace gas chromatography (HS-GC) was analyzed on the basis of JJF 1059.1-2012 "Evaluation and Expression of Uncertainty in Measurement", and the uncertainty of individual component affecting measurement was calculated. The results showed that: 1) The factors influencing measurement uncertainty included sample preparation, standard solution preparation, repeatability examination, calibration curve fitting, etc., particularly the calibration curve fitting. 2) When the residue of butyl acetate in tipping paper sample was 0.54 mg/m2, the combined uncertainty and the expanded uncertainty of measurement results were 0.024 and 0.05 mg/m2 (P=95%, k=2), respectively. Therefore, the analysis accuracy could be improved by means of abandoning stepwise dilution method during the solution preparation of standard working curve or reducing the concentration range of standard working solution.


Qin G.,CAS Zhengzhou Research Institute | Wang D.,China Tobacco Fujian Industrial Co. | Li B.,CAS Zhengzhou Research Institute | Zhu W.,CAS Zhengzhou Research Institute | Wang P.,CAS Zhengzhou Research Institute
Tobacco Science and Technology | Year: 2013

The residence time of cut tobacco in a rotary cylinder was studied with an in-house cold state experimental platform, the variations of residence time at different rotating speeds and inclination of the cylinder, air velocities, cut tobacco infeed rates and moisture contents were investigated separately. Basing on Friedmam-Marshall model, a mathematical model for predicting cut tobacco residence time was developed by introducing moisture content as a correction factor and the incorporation of all influencing factors, and the developed model was validated. The results showed that: 1) The moisture content in tobacco was an important factor in the determination of residence time of cut tobacco in a rotary cylinder, however, it was exclusive of the conventional predicting model. 2) When the conventional model modified with moisture content was used to predict the residence time of cut tobacco, the deviation between predicted value and tested value decreased, while the precision of model increased.


Huang C.,China Tobacco Fujian Industrial Co. | Cai G.,China Tobacco Fujian Industrial Co. | Zhao Y.,China Tobacco Fujian Industrial Co. | Su M.,China Tobacco Fujian Industrial Co. | And 2 more authors.
Tobacco Science and Technology | Year: 2013

In order to study the correlations between the delivery of hydrogen cyanide in mainstream smoke of cigarette made of single grade tobacco and the routine chemical components in the tobacco, the contents of total sugar, total nitrogen, reducing sugar, nicotine, potassium and chlorine in 15 kinds of flue-cured tobacco samples and the delivery of hydrogen cyanide in mainstream smoke were determined with continuous flow analyzer. The results showed that the delivery of hydrogen cyanide in mainstream cigarette smoke significantly positively correlated with the contents of total nitrogen, nicotine and chlorine, while significantly negatively correlated with the contents of total sugar, reducing sugar and potassium in tobacco leaves.


Wang D.,China Tobacco Fujian Industrial Co. | Zhou Y.,China Tobacco Fujian Industrial Co. | Xie J.,China Tobacco Fujian Industrial Co.
Tobacco Science and Technology | Year: 2013

To improve casing utilization and casing uniformity, a two-step burley tobacco casing process was adopted, at the first casing step, burley strips were cased after conditioning, heating and loosening; at the second casing step, the cut strips were cased. The preferable casing proportion at each casing step was investigated as well. The results showed that comparing with traditional twice strip casing, the two-step casing raised the casing uniformity coefficient from 53.52% to 90.14% and the effective utilization rate of casing from 61.19% to 88.25% when the ratio of strip casing to cut strip casing was 3:1.


Zhang J.,China Tobacco Fujian Industrial Co. | Liu X.,China Tobacco Fujian Industrial Co. | Huang C.,China Tobacco Fujian Industrial Co. | Liu Z.,China Tobacco Fujian Industrial Co. | And 2 more authors.
Tobacco Science and Technology | Year: 2013

In order to determine the chemical species of arsenic (As) in tobacco samples, a method combining ultrasonic solvent extraction and high performance liquid chromatography (HPLC) with inductively coupled plasma-mass spectrometry (ICP-MS) was developed to separate and analyze six species of arsenic, including arsenous acid [As(III)], arsenic acid [As(V)], dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), arsenobetaine (AsB), and arsenocholine (AsC). The result showed that the baselines of the six species of arsenic mentioned above were separated within 15 mins by Hamilton PRPX-100 (250×4.1 mm, 10 μm) anion exchange column and using 15 mmol/L (NH4)2HPO4 (pH6.0) as the mobile phase. The linear ranges were no less than two orders of magnitude. The detection limit ranged from 0.44 to 0.98 μg/L and the recoveries were from 85.19% to 87.31% with the RSD (n=5) of 2.45% to 3.56%. The content of As in tobacco was low, and some arsenic species existed in the forms of DMA and MMA were of lower toxicity. Ultrasonic solvent extraction could extract the organic and inorganic As in tobacco simultaneously and reflect the distribution of As species in tobacco samples objectively. This method is accurate, reliable, and suitable for the speciation analysis of As in tobacco, and can provide a reference for the safety evaluation of tobacco.

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