CN106723281A - Slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction - Google Patents

Slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction Download PDF

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CN106723281A
CN106723281A CN201611149104.4A CN201611149104A CN106723281A CN 106723281 A CN106723281 A CN 106723281A CN 201611149104 A CN201611149104 A CN 201611149104A CN 106723281 A CN106723281 A CN 106723281A
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slurry
papermaking
uniformity
mass dryness
reconstituted tobaccos
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CN106723281B (en
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刘晶
李军
向海英
白晓莉
吴丽君
卢伟
李姗姗
王保兴
谢志强
马迅
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China Tobacco Yunnan Industrial Co Ltd
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China Tobacco Yunnan Industrial Co Ltd
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00

Abstract

Slurry uniformity characterizing method the present invention relates to be based on papermaking-method reconstituted tobaccos slurry mass dryness fraction, belongs to reconstituted tobacco technology field.The present invention is during papermaking-method reconstituted tobaccos are manufactured paper with pulp, a slurrying batch to be divided into T time period at equal intervals, and T+2 sampling time points, T >=3 are constituted in chronological order；Each sampling time point i is exported in fiberizer and sampled, and determines the slurry mass dryness fraction of samples taken, and the measure number of times of each sample is n, n >=6；Each time point i slurry mass dryness fractions are calculated firstAverage, standard variance, the coefficient of variation and the uniformity；Then the slurrying batch slurry mass dryness fraction is calculated

Description

Slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction
Technical field
The invention belongs to reconstituted tobacco technology field, it is related to papermaking-method reconstituted tobaccos pulping process stock quality evaluation A kind of method, and in particular to slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction.
Background technology
On the slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction, Patents report is as follows：
Chinese patent CN201310060855.9 discloses a kind of reduction papermaking-method reconstituted tobaccos two sides difference method, is to use mist Change reverse side of the nozzle after substrate coating and quantitatively spray atomization running water humidification method, increase thin slice reverse side coating fluid mobility, Promote reverse side coating fluid further to be permeated to front, reduce positive and negative coating weight difference in distribution, reach thin slice positive and negative coating weight Uniformity, input is saved, and control is simple, effect is significant.The atomizer is from thin slice 250~350mm of vertical height, nozzle Center line is vertical with thin slice inclined-plane, spray film granularity ≯ 300 μm, every square metre of 150~250g of thin slice spray amount.It is characterized in that： It is to use reverse side of the atomizer after substrate coating quantitatively to spray atomization running water humidification method, the positive and negative coating of adjustment thin slice Amount uniformity.
Chinese patent CN201110371448.0 is provided using near infrared spectrum detection reconstituted tobacco thickness in papermaking Method, including collect sample, modeling sample screening, collection original spectrum, Pretreated spectra, to set up quantitative model, optimization quantitative The steps such as model, model testing, measure reconstituted tobacco thickness.The inventive method can rapidly and accurately detect papermaking-method reconstituted tobaccos Thickness.
Chinese patent CN200910094107.6 discloses a kind of appearance color detection method for reconstituted tobacco by papermaking method.With list The even property of color of the absolute value representation sample of the difference of piece sample measurement and average value, with the brightness value average value of sample, red green The aberration of the absolute value representation testing sample of the difference of value average value, champac value average value and standard items measured value.If color is uniform Property desired value in there is two or more not meet Δ LN≤2.0, Δ AN≤1.5, the regulation of Δ BN≤1.5 then judges that color is uniform Property is unqualified.If occurring one in value of chromatism and the above not meeting Δ L≤2.5, Δ A≤1.5, Δ B≤1.5 regulation, judge Aberration is unqualified.The method is effectively avoided due to the erroneous judgement that the subjective factor of sense organ is caused, and makes appearance color index by fixed The description of property is changed into the data target of quantification, it is ensured that the accuracy and uniformity of judgement.
Chinese patent CN201210292967.2 provides a kind of papermaking-method reconstituted tobaccos pulping process, including following step Suddenly：Extracted after tobacco sheet material is mixed, extraction resulting material is separated by filtration, gained insoluble composition is mixed equal It is even as pulping raw material；Pulping raw material is carried out into slurrying to thicken；Using multistage pulping process, the slurry to gained is beaten. Pulping process provided by the present invention, is being sufficiently reserved fibre length, while effectively improving the weight in wet base of slurry, moreover it is possible to tobacco Small pieces and various feed particles in class slurry are fully discongested, and keep the form of fiber and uniform in size, effectively improve tobacco-based Piece evenness.
Foregoing invention provides new ideasand methods and means how to improve papermaking-method reconstituted tobaccos quality；But not It is related to how the slurry uniformity, the slurry uniformity characterize.
Chinese patent CN201310750057.9 provides a kind of papermaking-method reconstituted tobaccos slurry uniformity characterizing method, side Method step is as follows：One slurrying batch time is divided into T >=3 time period at equal intervals, when constituting T+2 sampling in chronological order Between point, calculate the i time point papermaking-method reconstituted tobaccos slurry uniformitys, then to calculate a slurrying batch papermaking-method reconstituted tobaccos slurry equal Evenness；Judge that the papermaking-method reconstituted tobaccos of a slurrying batch are uniform according to the papermaking-method reconstituted tobaccos slurry uniformity for calculating Property.The present invention can quick and precisely judge the reconstructed tobacco leaf slurry uniformity, optimize reconstituted tobacco pulping process, improve reconstituted tobacco matter Amount.
Be can be seen that from the patented invention content：The inventive technique is by detecting that online process of manufacturing paper with pulp is surfed the Net concentration, dense White water consistency, and calculate detection online concentration, enriched water concentration proportion characterizes the slurry uniformity, is by detecting that slurry is manufactured paper with pulp The Size Technology index of process judges the pulping process slurry uniformity, and then improves problem and deficiency that pulping process is present, Result of practical application shows, although testing result has preferable directive function to pulping process, but because the method is " afterwards Inspection ", measurement result feedback control, have that response is timely, need to further further investigate, and choose papermaking-method reconstituted tobaccos system The suitable Size Technology index of slurry process, sign papermaking-method reconstituted tobaccos slurry is uniform quickly, in time to set up a kind of pulping process The method of degree.
The content of the invention
The deficiency that the present invention exists for existing sign papermaking-method reconstituted tobaccos slurry uniformity method, especially there is no at present The present situation of the slurry uniformity is characterized using pulping process Size Technology index, there is provided a kind of quick, timely sign paper process is again The method for making the tobacco leaf slurry uniformity.
To achieve the above object, the technical solution adopted by the present invention is as follows：
Slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction, it is specific as follows：Paper-making method reconstructed During tobacco leaf is manufactured paper with pulp, a slurrying batch is divided into T time period at equal intervals, T+2 sampling time points is constituted in chronological order, T≥3；
Each sampling time point i is exported in fiberizer and sampled, and determines the slurry mass dryness fraction of samples taken, the measure of each sample Number of times is n, n >=6；
Each time point i slurry mass dryness fractions sf is calculated firstij(i=1,2 ... ..T+2；J=1,2 ... average n), mark Quasi- variance, the coefficient of variation and the uniformity；Then slurrying batch slurry mass dryness fraction Sf is calculatedij(i=1,2 ... ..T+2；J=1, 2.....n average), standard variance, the coefficient of variation and the uniformity；
Finally according to the i sampling time points papermaking-method reconstituted tobaccos slurry uniformity and the paper-making method reconstructed cigarette of slurrying batch The leaf slurry uniformity judges the papermaking-method reconstituted tobaccos slurry uniformity of the slurrying batch.
It is further preferred that the described slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction, Comprise the following steps：
Step (1), a slurrying batch sampling time point determines：
1. a slurrying batch time, T >=3 time period is divided at equal intervals；
2. T+2 sampling time point is constituted in chronological order；
Step (2), the i sampling time point papermaking-method reconstituted tobaccos slurries uniformity is calculated：
1. i sampling time points, slurry sample is taken in fiberizer outlet, determines the slurry mass dryness fraction of samples taken, each sample Measure number of times be 6；
2. i sampling time point slurry mass dryness fraction averages are calculated
Wherein, i=1,2 ... T+2, are one the 1 of slurrying batch, 2 ... one of T+2 sampling time points；J=1,2 ... 6；
3. the standard variance s of i sampling time point slurry mass dryness fractions is calculatedtd；
4. the coefficient of variation CVi of i sampling time point slurry mass dryness fractions is calculated；
5. i sampling time point papermaking-method reconstituted tobaccos slurry uniformitys U is calculatedi；
Ui=100%-CVi；
Step (3), the slurrying batch papermaking-method reconstituted tobaccos slurry uniformity is calculated：
1. one slurrying batch 1,2 ... T+2 sampling time point slurry sample slurry mass dryness fraction of reconstituted tobacco, each sample are determined Product replication 6 times；
2. the average of the slurrying batch slurry mass dryness fraction is calculated
Wherein, i=1,2 ... T+2 are one the 1,2 of slurrying batch ... T+2 One of sampling time point；J=1,2 ... 6, it is the detection number of times of same slurrying sample；；
3. standard variance S is calculatedtd；
Wherein, K=1,2,3 ... ... (T+2) × 6；Be the slurry mass dryness fraction measured value that is detected in a slurrying batch One of number；
4. coefficient of variation CV is calculated；
5. a slurrying batch papermaking-method reconstituted tobaccos slurry uniformity U is calculated；
U=100%-CV；
Step (4), the judgement of the papermaking-method reconstituted tobaccos slurry uniformity of the slurrying batch：
If the U that step (2) is obtainedi>=97.00% (i=1,2....T+2), and step (3) obtain U >= 97.00%, then the papermaking-method reconstituted tobaccos slurry of the slurrying batch meet reconstituted tobacco pulping requirements；
If that is, the uniformity U that step (2) is obtainediThe U that (i=1,2 ... T+2), step (3) are obtained wherein it One is less than 97.00%, then it represents that this batch of slurry is not up to process quality requirement, should in time rectify and improve pulping process and there is problem.
It is further preferred that described fiberizer is low dense fiberizer, high-density paste mill or FPI fiberizers, but do not limit In this, all kinds fiber fiberizer and rear all kinds fiber fiberizer is combined in guarantor of the invention by technological requirement In the range of shield.
Compared with prior art, its advantage is the present invention：
(1) it is quick, timely, high degree of automation.
(2) reconstituted tobacco pulping process is optimized；
(3) reconstituted tobacco pulping process technology and equipment renovation are instructed.
After the present invention applies to produce reality, the slurry uniformity is characterized into site and moves forward to grinding machine outlet from operation of manufacturing paper with pulp, The problems and shortcomings of Chinese patent CN201310750057.9 presence are overcome, in time, effectively the slurry uniformity are controlled, Realize：The quantitative stability contorting of reconstituted tobacco chip base chip base full width is in ± 1g/m2Within；The Typical physical of reconstituted tobacco product refers to Fluctuation (%)≤5.0 in mark (quantitative, thickness, tensile strength) batch, batch between fluctuate (%)≤8.0.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and should not be regarded as limiting this hair Bright scope.In the examples where no specific technique or condition is specified, according to the technology or condition described by document in the art Or carried out according to product description.Material therefor or the unreceipted production firm person of instrument, being can be by buying what is obtained Conventional products.
Embodiment 1
To certain reconstituted tobacco manufactory, certain one slurrying batch of trade mark reconstituted tobacco product, 3 times are divided at equal intervals Section, constitutes 5 sampling time points in chronological order；
(1) exported in fiberizer by 1,2 ... 5 sampling time points and sampled, each sample detection slurry mass dryness fraction 6 times；First Calculate each sampling time point i slurries mass dryness fraction (Slurry fraction) sfij(i=1,2 ... ..5；J=1,2 ... 6) Average, standard variance, the coefficient of variation and the uniformity；Result is as shown in table 1.
Table 15 average, standard variance, the coefficient of variation, the uniformitys of sampling time point slurry mass dryness fraction
Obtained from the result of table 1：
U1=97.16%；U2=97.82%；U3=98.25%；U4=98.26%；U5=98.46%.
(2) slurrying batch slurry mass dryness fraction (Slurry fraction) sf is calculatedij(i=1,2 ... ..5；J=1, 2.....6 average), standard variance, the coefficient of variation, the uniformity, result of calculation are as shown in table 2
Average, standard variance, the coefficient of variation, the uniformity of the table 2 slurrying batch slurry mass dryness fraction
Average value 23.0
Standard variance 0.5
The coefficient of variation/% 2.2
The uniformity/% 97.76
Obtained from the result of table 2：
The slurrying batch uniformity is U=97.76%.
(3) uniformity Ui>=97.16% (i=1,2....5), U >=97.76%, judge that the slurry of the batch meets reconstruction Tobacco leaf pulping requirements.
Embodiment 2
To certain reconstituted tobacco manufactory, certain one slurrying batch of trade mark reconstituted tobacco product, 4 times are divided at equal intervals Section, constitutes 6 sampling time points in chronological order；
(1) exported in fiberizer by 1,2 ... 6 time points and sampled, each detection slurry mass dryness fraction 6 times calculates each sampling Time point i slurry mass dryness fraction (Slurry fraction) sfij(i=1,2 ... ..6；J=1,2 ... average 6), standard side Difference, the coefficient of variation and the uniformity；Result is as shown in table 3.
Table 36 average, standard variance, the coefficient of variation, the uniformitys of sampling time point slurry mass dryness fraction
Obtained from the result of table 3：
U1=98.70%；U2=97.79%；U3=98.56%；U4=96.79%；U5=97.93%；U6= 98.89%.
(2) slurrying batch slurry mass dryness fraction (Slurry fraction) Sf is calculatedij(i=1,2 ... ..6；J=1, 2.....6 average), standard variance, the coefficient of variation and the uniformity；Result of calculation is as shown in table 4.
Average, standard variance, the coefficient of variation, the uniformity of the table 4 slurrying batch slurry mass dryness fraction
Average value 22.60
Standard variance 0.89
The coefficient of variation/% 3.93
The uniformity/% 96.07
Obtained from the result of table 4：
The slurrying batch uniformity is U=96.07%.
(3) wherein uniformity U3=96.79 ＜ 97.00% (i=1,2....6), U=96.07 ＜ 97.00%, the batch Slurry be not up to reconstituted tobacco manufacture paper with pulp process quality requirement, should in time rectify and improve pulping process and there is problem.
Embodiment 3
To certain reconstituted tobacco manufactory, certain one slurrying batch of trade mark reconstituted tobacco product, 3 times are divided at equal intervals Section, constitutes 5 sampling time points in chronological order；
(1) exported in fiberizer by 1,2 ... 5 time points and sampled, each detection slurry mass dryness fraction 6 times calculates each sampling Time point i slurry mass dryness fraction (Slurry fraction) sfij(i=1,2 ... ..5；J=1,2 ... average 6), standard side Difference, the coefficient of variation and the uniformity；Result is as shown in table 5.
Table 55 average, standard variance, the coefficient of variation, the uniformitys of sampling time point slurry mass dryness fraction
Obtained from the result of table 5：
U1=98.97%；U2=98.40%；U3=99.07%；U4=98.47%；U5=98.33%.
(2) slurrying batch slurry mass dryness fraction (Slurry fraction) sf is calculatedij(i=1,2 ... ..5；J=1, 2.....6 average), standard variance, the coefficient of variation and the uniformity；Result of calculation is as shown in table 6.
Average, standard variance, the coefficient of variation, the uniformity of the table 6 slurrying batch slurry mass dryness fraction
Average value 22.8
Standard variance 0.6
The coefficient of variation/% 2.8
The uniformity/% 97.24
Obtained from the result of table 6：
The slurrying batch uniformity is U=97.24%.
(3) uniformity Ui>=98.33%, U=97.24% ＞ 97.00%, judge that the slurry of the batch meets reconstituted tobacco Pulping requirements.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its Equivalent thereof.

Claims (3)

1. the slurry uniformity characterizing method of papermaking-method reconstituted tobaccos slurry mass dryness fraction is based on, it is characterised in that paper-making method reconstructed During tobacco leaf is manufactured paper with pulp, a slurrying batch is divided into T time period at equal intervals, T+2 sampling time points is constituted in chronological order, T≥3；
Each sampling time point i is exported in fiberizer and sampled, and determines the slurry mass dryness fraction of samples taken, the measure number of times of each sample It is n, n >=6；
Each sampling time point i slurry mass dryness fractions sf is calculated firstij(i=1,2 ... ..T+2；J=1,2 ... average n), mark Quasi- variance, the coefficient of variation and the uniformity；Then slurrying batch slurry mass dryness fraction Sf is calculatedij(i=1,2 ... ..T+2；J=1, 2 ... ..n) average, standard variance, the coefficient of variation and the uniformity；
It is equal finally according to the i time point papermaking-method reconstituted tobaccos slurry uniformitys and the slurrying batch papermaking-method reconstituted tobaccos slurry Evenness judges the papermaking-method reconstituted tobaccos slurry uniformity of the slurrying batch.
2. the slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction according to claim 1, it is special Levy and be, comprise the following steps：
Step (1), a slurrying batch sampling time point determines：
1. a slurrying batch time, T >=3 time period is divided at equal intervals；
2. T+2 sampling time point is constituted in chronological order；
Step (2), the i sampling time point papermaking-method reconstituted tobaccos slurries uniformity is calculated：
1. i sampling time points, slurry sample is taken in fiberizer outlet, determines the slurry mass dryness fraction of samples taken, the survey of each sample It is 6 to determine number of times；
2. i sampling time point slurry mass dryness fraction averages are calculated
Wherein, i=1,2 ... T+2 are one the 1,2 of slurrying batch ... T One of+2 sampling time points；J=1,2 ... 6；
3. the standard variance s of i sampling time point slurry mass dryness fractions is calculatedtd；
s t d = 1 6 Σ i = 1 6 ( sf i - sf i ‾ ) 2 ;
4. the coefficient of variation CV of i sampling time point slurry mass dryness fractions is calculatedi；
CV i = s t d sf i ‾ × 100 % ;
5. i sampling time point papermaking-method reconstituted tobaccos slurry uniformitys U is calculatedi；
Ui=100%-CVi；
Step (3), the slurrying batch papermaking-method reconstituted tobaccos slurry uniformity is calculated：
1. one slurrying batch 1,2 ... T+2 sampling time point slurry sample slurry mass dryness fraction of reconstituted tobacco, each sample weight are determined Repetition measurement is fixed 6 times；
2. the average of the slurrying batch slurry mass dryness fraction is calculated
Wherein, during T+2 samplings that i=1,2 ... T+2 are the 1,2 of slurrying batch ... Between point one of；J=1,2 ... 6, it is the detection number of times of same sample；
3. standard variance S is calculatedtd；
S t d = 1 6 × ( T + 2 ) - 1 Σ K = 1 6 × ( T + 2 ) ( Sf k - S f ‾ ) 2 ;
Wherein, K=1,2,3 ... ... (T+2) × 6；Be the slurry mass dryness fraction measured value detected in a slurrying batch number it One；
4. coefficient of variation CV is calculated；
C V = S t d S f ‾ × 100 % ;
5. a slurrying batch papermaking-method reconstituted tobaccos slurry uniformity U is calculated；
U=100%-CV；
Step (4), the judgement of the papermaking-method reconstituted tobaccos slurry uniformity of the slurrying batch：
If the U that step (2) is obtainedi>=97.00% (i=1,2 ... .T+2), and U >=97.00% that step (3) is obtained, then should The papermaking-method reconstituted tobaccos slurry of slurrying batch meets reconstituted tobacco pulping requirements.
3. the slurry uniformity characterizing method based on papermaking-method reconstituted tobaccos slurry mass dryness fraction according to claim 1, it is special Levy and be：Described fiberizer is low dense fiberizer, high-density paste mill or FPI fiberizers.
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Publication number Priority date Publication date Assignee Title
CN108061691A (en) * 2017-12-13 2018-05-22 安徽中烟工业有限责任公司 A kind of method of reconstituted tobacco quality stability between evaluation batch
CN108195711A (en) * 2017-12-25 2018-06-22 安徽中烟工业有限责任公司 A kind of method for measuring cigarette shreds Blending uniformity
CN110574956A (en) * 2018-06-08 2019-12-17 湖北中烟工业有限责任公司 characterization method for quality stability of paper-making reconstituted tobacco slurry

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CN104856214A (en) * 2015-06-05 2015-08-26 湖北中烟工业有限责任公司 Sampling method used for bone dry pulp quantity when beating degree of paper-making reconstituted tobacco raw materials is detected
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JPH11103839A (en) * 1997-10-06 1999-04-20 Japan Tobacco Inc Sheet tobacco material and its production
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108061691A (en) * 2017-12-13 2018-05-22 安徽中烟工业有限责任公司 A kind of method of reconstituted tobacco quality stability between evaluation batch
CN108061691B (en) * 2017-12-13 2020-05-01 安徽中烟工业有限责任公司 Method for evaluating quality stability of reconstituted tobacco between batches
CN108195711A (en) * 2017-12-25 2018-06-22 安徽中烟工业有限责任公司 A kind of method for measuring cigarette shreds Blending uniformity
CN110574956A (en) * 2018-06-08 2019-12-17 湖北中烟工业有限责任公司 characterization method for quality stability of paper-making reconstituted tobacco slurry

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