CN102879314B - Testing method for natural air permeability and eyelets of cigarette paper - Google Patents
Testing method for natural air permeability and eyelets of cigarette paper Download PDFInfo
- Publication number
- CN102879314B CN102879314B CN201210366776.6A CN201210366776A CN102879314B CN 102879314 B CN102879314 B CN 102879314B CN 201210366776 A CN201210366776 A CN 201210366776A CN 102879314 B CN102879314 B CN 102879314B
- Authority
- CN
- China
- Prior art keywords
- eyelet
- cigarette paper
- air permeability
- diameter
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a testing device and a testing method for natural air permeability and eyelets of cigarette paper. The testing device comprises a light absorbing dark chamber and a signal processor. The light absorbing dark chamber is a hollow cylinder which is provided with a parallel light source at the top, a cylindrical cavity on the lower portion of the parallel light source is provided with a sample chamber and an optical component from top to bottom, the cavity is provided with a photoelectric induction component at the bottom, and the photoelectric induction component is connected with the signal processor through a signal line. Natural air permeability, eyelet air permeability and eyelet quantity of cigarette paper can be accurately measured, quality of cigarette paper is accurately judged, powerful support is provided for optimized selection in design parameters of cigarette paper of a low hazardous cigarette, production and application of cigarette paper and design of a high-quality and high-safety cigarette are facilitated, and huge economic and social benefits are achieved.
Description
Technical field
The present invention relates to cigarette paper natural permeable degree and eyelet technical field of measurement and test, relate in particular to proving installation and the method for testing thereof of a kind of cigarette paper natural permeable degree and eyelet.
Background technology
Cigarette paper belongs to tissue paper, general thickness is in 0.04mm left and right, as cigarette auxiliary material, in tobacco industry, occupy compared with consequence, cigarette paper accounts for 5% left and right of Cigarette weight, because it participates in burning directly, can be by controlling flammability and the diluting effect to flue gas of cigarette, affect flammability, fragrance and the tar generation of cigarette, and other harmful ingredients in flue gas is as carbon monoxide, HCN, the variation of 4-methyl nitroso-pyridine radicals butanone (NNK), NH3, benzo [a] pyrene (B[a] P), phenol, crotonaldehyde etc.Wherein, one of key index playing a significant role is exactly air permeance for cigarette paper, and air permeance for cigarette paper refers under 1.00kPa gaging pressure, passes through 1cm
2the air mass flow (cm on sample surface
3/ min).
At present, cigarette paper national standard is GB/T 12655-2007 < < cigarette paper > > (hereinafter to be referred as cigarette paper GB), and it is to carry out according to YC/T 172-2002/ISO 2965:1997 < < cigarette paper, forming paper, tipping paper and the method for measurement > > (hereinafter to be referred as YC/T 172) regulation with the material air permeability of directed air permeable belt that the air permeability of cigarette paper is measured.
Why cigarette paper ventilative one is because there is space in its matrix, its air permeability is subject to the type of vegetable fibre and the impact of distribution and filler, gap exists according to vegetable fibre, elongated complications, naked eyes are invisible, the air permeability that gap forms is cigarette paper natural permeable degree, and the typical space that can form natural permeable degree on cigarette paper is 1 micron, and the air permeability in present specification, following space, 3 microns, aperture on cigarette paper being formed is defined as natural permeable degree; The 2nd, the eyelet inevitably forming in paper-making process, eyelet refers to the through hole of cigarette paper, in present specification, the space of aperture on cigarette paper 3 microns above (containing 3 microns) is defined as to eyelet.
Eyelet is a kind of paper sheet defect, can affect production and the design of cigarette, there is no at present quantified detection method, eyelet connects paper, aperture is larger, naked eyes are visible, and the air permeability in present specification, eyelet on cigarette paper being formed is called eyelet air permeability, and eyelet air permeability is identical to the effect of cigarette with hole drilling ventilation degree to the effect of cigarette.The measured air permeance for cigarette paper of prior art be actually natural permeable degree and eyelet air permeability and, present specification is defined as cigarette paper full impregnated manner.
Quality judging with regard to cigarette paper, natural permeable degree is high, eyelet is few is better than that natural permeable degree is low, eyelet is many, because existing detection method can not be separated natural permeable degree and eyelet air permeability, full impregnated manner is considered as to natural permeable degree, exaggerate the natural permeable degree of cigarette paper, also just exaggerated the quality of cigarette paper; Eyelet can not be quantized, the influence degree of eyelet to cigarette paper quality can not be judged accurately.
By research, find, the natural permeable degree of cigarette paper has significant different with hole drilling ventilation degree (eyelet air permeability is identical to the effect of cigarette from hole drilling ventilation degree) to indexs such as the burning performance of cigarette, the variation of smoke chemistry composition, puff numbers, Fig. 1, Fig. 2 are that take containing the flax fiber paper of 0.5% sal limonis is the contrast and experiment that object is done, and this result shows: natural permeable degree and the hole drilling ventilation degree of cigarette paper have remarkable difference to the influence curve of the vapour phase of cigarette, nicotine, nitrogen monoxide, carbon monoxide, tar, puff number.Eyelet air permeability is identical to the effect of cigarette with hole drilling ventilation degree, because current cigarette paper method of testing can not be separated natural permeable degree and eyelet air permeability, existing cigarette paper GB is not stipulated the measuring method of cigarette paper eyelet, eyelet can not be quantized, can cause the misuse of cigarette paper, the design and the steady quality that are unfavorable for cigarette, for example, a kind of natural permeable degree is 20CU, eyelet air permeability is the cigarette paper of 20CU, with existing measuring method, see, it is exactly the cigarette paper of a 40CU natural permeable degree, with its design or production cigarette, known according to Fig. 1 family curve, can obtain a tar and reduce by 20% cigarette, what in fact obtain is that tar reduces by 17% cigarette (Fig. 1 and the stack of Fig. 2 family curve), other indexs and desired value be the difference of various degrees also.
Summary of the invention
Object of the present invention, in order to solve existing measuring method, there is the quality fluctuation problem that the design error that the cigarette paper quality erroneous judgement that cigarette paper natural permeable degree, eyelet air permeability, eyelet amount Measurement accuracy can not be caused, Cigarette design bring because of cigarette paper and production of cigarettes are brought because of cigarette paper; The proving installation of a kind of cigarette paper natural permeable degree and eyelet is provided; Can Measurement accuracy cigarette paper natural permeable degree, eyelet air permeability and eyelet amount, accurately judge cigarette paper quality, for the optimization of low hazard cigarette cigarette paper design parameter selects to provide strong support, be conducive to production of cigarettes application and high-quality, high security Cigarette design, there is very large economic and social benefit.
The present invention also provides the method for testing of a kind of cigarette paper natural permeable degree and eyelet.
To achieve these goals, the present invention adopts following technical scheme:
The proving installation of a kind of cigarette paper natural permeable degree and eyelet, comprise that light absorbs darkroom, signal processor, described light absorbs the right cylinder that darkroom is hollow, described cylindrical top is provided with parallel light source, in the cylindrical cavity of parallel light source bottom, be provided with sample chamber, optical module from top to bottom, cavity bottom is provided with optoelectronic induction assembly, and optoelectronic induction assembly is connected by signal wire with signal processor.
Described optical module is Powerful Light Microscope.
Described optoelectronic induction assembly is high-performance digital camera or video camera.
Described signal processor is the high-performance computer with display screen.
The light that the inwall in light absorption darkroom is provided with black, surface frosted processing absorbs strong material layer.Parallel light source coordinates with light absorption chamber, utilizes the light absorptive of this material layer to eliminate eyelet imaging interference.
Optical module comprises lens barrel, handel, and lens barrel is connected with handel, and lens barrel is provided with eyepiece, object lens, and handel is provided with the burnt spiral of thick standard, thin accurate burnt spiral.Optical module has micro-amplification, and optical module makes the good optically focused of light energy seeing through to optoelectronic induction assembly, makes optoelectronic induction assembly form electronic image signal clearly.
The method of testing of cigarette paper natural permeable degree and eyelet, comprises following testing procedure:
1) by the method for YC/T172 regulation, record cigarette paper sample full impregnated manner, by the full impregnated manner value input signal processor of the cigarette paper recording;
2) the cigarette paper sample of step 1) is put into sample chamber;
3) open parallel light source;
4) regulate the burnt spiral of thick standard and the thin accurate burnt spiral of optical module, cigarette paper sample optical amplifier;
5) allow optoelectronic induction assembly expose, produce electronic image signal clearly;
6) electronic image signal is delivered to signal processor through circuit, and signal processor stored electrons image, measures, calculates, analyzes image simultaneously; By measuring thickness, the area of sample, many the diameters by multiangular measurement eyelet also calculate its mean value, with mean value, represent the diameter of concrete eyelet, diameter statistic of classification to the concrete eyelet with mean value representative again, obtain the eyelet quantity n of diameter 3 microns above (containing 3 microns), the eyelet picture signal of the diameter recording 3 microns above (containing 3 microns) is converted to eyelet air permeability; By eyelet air permeability, eyelet average pore size, eyelet quantity, porosity or eyelet distribution situation data, carry out quantization signifying paper sheet defect eyelet, signal processor stores above information and shows result by display screen;
7) record data.Tested rear taking-up sample, stopping device.
The cigarette paper sample full impregnated manner recording by step 1), deducts the eyelet air permeability that step 6) records, and obtains natural permeable degree.
Described step 6) obtains eyelet air permeability by following formula:
In formula: Q is eyelet air permeability; A is sample area; η is the coefficient of viscosity (viscosity) of air; Sv is volumetric surface area;
for sample porosity;
for eyelet average pore size, ρ is atmospheric density.
Described step 6) obtains the diameter of any one eyelet j by following formula:
d
j=(d
j1+d
j2+d
j3+d
j4+d
j5+d
j6)/6，
In formula: d
jfor the diameter of any one eyelet j, d
j1, d
j2, d
j3, d
j4, d
j5, d
j66 diameters for the eyelet j that measures.Because eyelet is not positive round hole type, any one eyelet j is measured six times with 30 ° of the angles of any two adjacent diameter, obtain 6 diameter d
j1, d
j2, d
j3, d
j4, d
j5, d
j6, with the mean value d of these 6 diameters that record
jrepresent the diameter in this hole;
Described step 6) obtains the eyelet average pore size of diameter 3 microns above (containing 3 microns) by following formula:
In formula:
for eyelet average pore size, d
ifor the diameter of more than 3 microns of diameters any one eyelet j of (containing 3 microns), n is the eyelet quantity of diameter 3 microns above (containing 3 microns).
Principle of work of the present invention: the present invention includes light and absorb darkroom, signal processor, described light absorbs the right cylinder that darkroom is hollow, described cylindrical top is provided with parallel light source, in the cylindrical cavity of parallel light source bottom, be provided with successively sample chamber from top to bottom, optical module, cavity bottom is provided with optoelectronic induction assembly, and optoelectronic induction assembly is connected by signal wire with signal processor.Optical module is the sample optical amplifier in sample chamber and project optoelectronic induction assembly, optoelectronic induction assembly receives and transmitting photo-signal becomes electronic image signal and electronic image signal is sent to signal processor, signal processor is by eyelet graphical analysis, record eye diameter, eyelet quantity, eyelet distribution situation data and thickness of sample and area, comprehensive above information, signal processor equivalent hole air permeability Q, to obtain eyelet air permeability.Meanwhile, by eyelet air permeability, eyelet average pore size, eyelet quantity, porosity or eyelet distribution situation data, carry out quantization signifying paper sheet defect eyelet.Although cigarette paper opacity is higher, but there is certain light transmission, and the imaging number of eyelet on optoelectronic induction assembly is relevant with non-coincidence pointolite number, therefore, adopt the lower parallel light source assembly of brightness as optical signal source, parallel light source coordinates with light absorption chamber, utilizes the light absorptive of this material layer to eliminate eyelet imaging interference.The light that sees through cigarette paper eyelet arrives optoelectronic induction assembly by optical module, optoelectronic induction assembly converts the light signal receiving to electronic image signal, by signal processor, electronic image signal is converted to air permeability again, thereby record eyelet air permeability, the paper sheet defect eyelet namely quantizing.By the cigarette paper sample full impregnated manner that the method that YC/T172 stipulates records, deduct the natural permeable degree that eyelet air permeability just obtains cigarette paper.Concrete testing procedure is:
By the method for YC/T172 regulation, record cigarette paper sample full impregnated manner, by the full impregnated manner value input signal processor of the cigarette paper recording; 2) the cigarette paper sample of step 1 is put into sample chamber; 3) open parallel light source; 4) regulate the burnt spiral of thick standard and the thin accurate burnt spiral of optical module, cigarette paper sample optical amplifier; 5) allow optoelectronic induction assembly exposure, produce electric signal, thereby and then electric signal converted to electronic image signal produce electronic image signal clearly; 6) electronic image signal is delivered to signal processor through circuit, signal processor stored electrons image, image is carried out to analyzing and processing simultaneously, by pore size, carry out statistic of classification, the eyelet picture signal of the diameter recording 3 microns above (containing 3 microns), by calculating, is obtained to eyelet air permeability value and reads measured value; 7) record data.The cigarette paper sample full impregnated manner recording by step 1), deducts the eyelet air permeability that step 6) records, and obtains natural permeable degree.With the sample of test full impregnated manner, as the sample of testing eyelet air permeability, can guarantee the correspondence of test data, to carry out the calculating of natural permeable degree.
Beneficial effect of the present invention:
1. parallel light source coordinates with light absorption chamber, utilizes the light absorptive of this material layer to eliminate eyelet imaging interference.
Optical module make the light that sees through can well optically focused to optoelectronic induction assembly, form reliable electronic image signal.
3. signal processor receives and stored electrons picture signal, electronic image is analyzed simultaneously, by pore size, carries out statistic of classification, and the eyelet image of the diameter recording 3 microns above (containing 3 microns) is converted to eyelet air permeability value.
4. signal processor deducts from the full impregnated manner value of employing typing the eyelet air permeability value that conversion gets and has just obtained natural permeable degree value.
5. by eyelet air permeability, eyelet average pore size, eyelet quantity, porosity or eyelet distribution situation data, carry out quantization signifying paper sheet defect eyelet.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that is related to of flue gas composition variable quantity and natural permeable degree;
Fig. 2 is the schematic diagram that is related to of flue gas composition variable quantity and hole drilling ventilation degree;
Fig. 3 is structural representation of the present invention;
Fig. 4 is optical assembly structure schematic diagram;
Fig. 5 is eye diameter d
jinstrumentation plan;
In figure, 1, light absorbs darkroom, 2, parallel light source, 3, sample chamber, 4, optical module, 5, optoelectronic induction assembly, 6, signal processor, 41 eyepieces, 42 lens barrels, 43 object lens, 44 thick accurate burnt spirals, 45 thin accurate burnt spirals, 46 handels.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described.
A kind of light-electricity-gas transfer device, comprise that light absorbs darkroom 1, signal processor 6, described light absorbs the right cylinder that darkroom 1 is hollow, described cylindrical top is provided with parallel light source 2, in the cylindrical cavity of parallel light source 2 bottoms, be provided with successively sample chamber 3, optical module 4 from top to bottom, cavity bottom is provided with optoelectronic induction assembly 5, and optoelectronic induction assembly 5 is connected by signal wire with signal processor 6.Parallel light source 2 illuminates sample, optical module 4 is the sample optical amplifier in sample chamber and project optoelectronic induction assembly 5, optoelectronic induction assembly 5 receives and transmitting photo-signal becomes electronic image signal and electronic image signal is sent to signal processor 6, signal processor 6 is by eyelet graphical analysis, record eye diameter, eyelet quantity, eyelet distribution situation data and thickness of sample, area, comprehensive above information, signal processor 6 is according to formula equivalent hole air permeability, so just record eyelet air permeability, use eyelet air permeability, eyelet average pore size, eyelet quantity, porosity or eyelet distribution situation data are carried out quantization signifying paper sheet defect eyelet.Described optical module is Powerful Light Microscope.Described optoelectronic induction assembly is high-performance digital camera or video camera.Described signal processor 6 is the high-performance computer with 15 cun of above display screens.
The light that the inwall in light absorption darkroom 1 is provided with black, surface frosted processing absorbs strong material layer.Parallel light source coordinates with light absorption chamber, utilizes the light absorptive of this material layer to eliminate eyelet imaging interference.
Powerful Light Microscope comprises lens barrel 42, handel 46, and lens barrel 42 is connected with handel 46, and lens barrel 42 is provided with eyepiece 41, object lens 43, and handel 46 is provided with the burnt spiral 44 of thick standard, thin accurate burnt spiral 45.Optical module make the light that sees through can well optically focused to optoelectronic induction assembly, form electric signal; Optical module has micro-amplification, makes sample eyelet form electronic image signal clearly by optoelectronic induction assembly.
The devices and methods therefor that utilizes the eyelet air permeability of light-electricity-gas shift method test cigarette paper, comprises following testing procedure:
1) by the method for YC/T172 regulation, record cigarette paper sample full impregnated manner, by the full impregnated manner value input signal processor 6 of the cigarette paper recording;
2) the cigarette paper sample of step 1) is put into sample chamber 3;
3) open parallel light source 2;
4) regulate the burnt spiral of thick standard and the thin accurate burnt spiral of optical module 4, make optical module 4 cigarette paper sample optical amplifier,
5) allow optoelectronic induction assembly 5 expose, produce clear electronic image signal;
6) electronic image signal is delivered to signal processor through circuit, and signal processor stored electrons image, measures, calculates, analyzes image simultaneously; Measure thickness, the area of sample, many diameters of multiangular measurement eyelet also calculate its mean value, with mean value, represent the diameter of concrete eyelet, diameter statistic of classification to the concrete eyelet with mean value representative again, obtain the eyelet quantity n of diameter 3 microns above (containing 3 microns), the eyelet picture signal of the diameter recording 3 microns above (containing 3 microns) is converted to eyelet air permeability; By eyelet air permeability, eyelet average pore size, eyelet quantity, porosity or eyelet distribution situation data, carry out quantization signifying paper sheet defect eyelet, signal processor 6 stores above information and shows result by display screen;
While adopting above-mentioned steps to measure, because eyelet is not positive round hole type, any one eyelet j is measured six times with 30 ° of the angles of any two adjacent diameters, obtain 6 diameter d
j1, d
j2, d
j3, d
j4, d
j5, d
j6, instrumentation plan as shown in Figure 5, is used the mean value d of these 6 diameters that record
jrepresent the diameter in this hole, by following formula, obtain the diameter of any one eyelet j: d
j=(d
j1+ d
j2+ d
j3+ d
j4+ d
j5+ d
j6)/6, in formula: d
jfor the diameter of any one eyelet j, d
j1, d
j2, d
j3, d
j4, d
j5, d
j66 diameters for the eyelet j that measures.
Then by following formula, obtain the eyelet average pore size of diameter 3 microns above (containing 3 microns):
In formula:
for eyelet average pore size, d
ifor the diameter of more than 3 microns of diameters any one eyelet j of (containing 3 microns), n is the eyelet quantity of diameter 3 microns above (containing 3 microns).
7) record data.
The cigarette paper sample full impregnated manner recording by step 1), deducts the eyelet air permeability that step 6) records, and obtains natural permeable degree.Tested rear taking-up sample, stopping device.
Described step 6) is converted to eyelet air permeability by following formula:
In formula: Q is eyelet air permeability; A is sample area; η is the coefficient of viscosity (viscosity) of air; Sv is volumetric surface area;
for sample porosity;
for eyelet average pore size, ρ is atmospheric density.
Although above-mentioned, by reference to the accompanying drawings the embodiment of invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (4)
1. the method for testing of a cigarette paper natural permeable degree and eyelet, its device comprises that light absorbs darkroom, signal processor, described light absorbs the right cylinder that darkroom is hollow, described cylindrical top is provided with parallel light source, in the cylindrical cavity of parallel light source bottom, be provided with sample chamber, optical module from top to bottom, cavity bottom is provided with optoelectronic induction assembly, and optoelectronic induction assembly is connected by signal wire with signal processor, it is characterized in that, comprise following testing procedure:
1) by the method for YC/T172 regulation, record cigarette paper sample full impregnated manner, by the full impregnated manner value input signal processor of the cigarette paper recording;
2) by step 1) cigarette paper sample put into sample chamber;
3) open parallel light source;
4) regulate the burnt spiral of thick standard and the thin accurate burnt spiral of Powerful Light Microscope, cigarette paper sample optical amplifier;
5) allow optoelectronic induction assembly expose, produce electronic image signal clearly;
6) electronic image signal is delivered to signal processor through circuit, and signal processor stored electrons image, measures, calculates, analyzes image simultaneously; By measuring thickness, the area of sample, many the diameters by multiangular measurement eyelet also calculate its mean value, with mean value, represent the diameter of concrete eyelet, diameter statistic of classification to the concrete eyelet with mean value representative again, obtain 3 microns of above eyelet quantity n of diameter, 3 microns of above eyelet picture signals of the diameter recording are converted to eyelet air permeability; By eyelet air permeability, eyelet average pore size, eyelet quantity, porosity or eyelet distribution situation data, carry out quantization signifying paper sheet defect eyelet, signal processor stores above information and shows result by display screen;
7) record data.
2. the method for testing of cigarette paper natural permeable degree as claimed in claim 1 and eyelet, is characterized in that, by step 1) the cigarette paper sample full impregnated manner that records, deduct step 6) the eyelet air permeability that records, obtain natural permeable degree.
3. the method for testing of cigarette paper natural permeable degree as claimed in claim 1 and eyelet, is characterized in that, described step 6) by following formula, obtain eyelet air permeability:
In formula: Q is eyelet air permeability; A is sample area; η is the coefficient of viscosity of air; Sv is volumetric surface area; Θ is sample porosity;
for eyelet average pore size, ρ is atmospheric density.
4. the method for testing of cigarette paper natural permeable degree as claimed in claim 1 and eyelet, is characterized in that, described step 6) by following formula, obtain the diameter of eyelet j:
d
j＝(d
j1+d
j2+d
j3+d
j4+d
j5+d
j6)/6，
In formula: d
jfor the diameter of any one eyelet j, d
j1, d
j2, d
j3, d
j4, d
j5, d
j66 diameters for the eyelet j that measures;
Described step 6) by following formula, obtain 3 microns of above eyelet average pore sizes of diameter:
In formula:
for eyelet average pore size, d
ifor the diameter of 3 microns of any one above eyelet j of diameter, n is 3 microns of above eyelet quantity of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366776.6A CN102879314B (en) | 2012-09-27 | 2012-09-27 | Testing method for natural air permeability and eyelets of cigarette paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366776.6A CN102879314B (en) | 2012-09-27 | 2012-09-27 | Testing method for natural air permeability and eyelets of cigarette paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102879314A CN102879314A (en) | 2013-01-16 |
| CN102879314B true CN102879314B (en) | 2014-07-23 |
Family
ID=47480722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210366776.6A Active CN102879314B (en) | 2012-09-27 | 2012-09-27 | Testing method for natural air permeability and eyelets of cigarette paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102879314B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333094A (en) * | 2018-01-29 | 2018-07-27 | 广东中烟工业有限责任公司 | A kind of projectional technique of air permeance for cigarette paper |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535167A (en) * | 2018-06-12 | 2018-09-14 | 河南中烟工业有限责任公司 | A kind of method and system promoting cigarette making machine air permeability |
| CN109512023B (en) * | 2018-11-12 | 2020-11-24 | 中国烟草总公司郑州烟草研究院 | Method for regulating and controlling filter efficiency of filter tip by optimizing ventilation rate and punching position of filter tip |
| CN110308118A (en) * | 2019-05-05 | 2019-10-08 | 贵州中烟工业有限责任公司 | The photoelectric detecting method of quick-fried pearl state in a kind of quick-fried pearl filter stick |
| CN111426618B (en) * | 2020-04-14 | 2023-09-12 | 重庆中烟工业有限责任公司 | Rapid evaluation and inspection system and method for cooling material |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3146076B2 (en) * | 1992-10-20 | 2001-03-12 | 日本たばこ産業株式会社 | Ventilation detection method and device |
| CN1328255A (en) * | 2001-07-24 | 2001-12-26 | 武汉华工激光工程有限责任公司 | Method for measuring air permeability of microporous sheet material |
| CN2496014Y (en) * | 2001-07-24 | 2002-06-19 | 武汉华工激光工程有限责任公司 | Thin porous material densometer |
| CN101063659A (en) * | 2006-04-26 | 2007-10-31 | 陈岳林 | System for detecting paper flaw of paper sheet |
| CN1945293A (en) * | 2006-07-29 | 2007-04-11 | 汕头市华天富信息材料有限公司 | Defect detecting laser scanning system |
| CN101221133A (en) * | 2008-01-25 | 2008-07-16 | 天津商业大学 | Honeycomb paper plate bonding defect detecting method and detecting system |
| CN102494983A (en) * | 2011-12-08 | 2012-06-13 | 苏州市博海激光科技有限公司 | Method and device for detecting air permeability of tipping paper |
-
2012
- 2012-09-27 CN CN201210366776.6A patent/CN102879314B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333094A (en) * | 2018-01-29 | 2018-07-27 | 广东中烟工业有限责任公司 | A kind of projectional technique of air permeance for cigarette paper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102879314A (en) | 2013-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102879314B (en) | Testing method for natural air permeability and eyelets of cigarette paper | |
| Lao et al. | In situ plasmonic optical fiber detection of the state of charge of supercapacitors for renewable energy storage | |
| CN102253043B (en) | Monocular CCD (Charge Coupled Device) digitalized analysis method of multi-angle yarn appearance | |
| CN111830047B (en) | Cigarette fly ash detection device and detection method based on machine vision | |
| CN201477055U (en) | Stripe detection device | |
| CN101408503B (en) | Method for automatically detecting and dynamically substracting stray light of spectrometer and spectrometer | |
| CN103811701A (en) | Quick material consistency evaluation method for lithium ion battery diaphragm | |
| CN206557053U (en) | A kind of oil quality detection means | |
| CN113252839B (en) | Cigarette static ash wrapping comprehensive evaluation index determination method based on cigarette paper parameters | |
| CN103424331A (en) | Detection method for cigarette burning rates | |
| CN102159510A (en) | Process for manufacturing microstructured optical fibre and method and system for on-line control of microstructured optical fibre | |
| CN105866091A (en) | Portable trace explosive detector | |
| CN107734329A (en) | A kind of detecting system and detection method of baseband digital video frame per second | |
| CN105758622A (en) | Method for measuring cladding light proportion of double-clad fiber laser | |
| CN102494983A (en) | Method and device for detecting air permeability of tipping paper | |
| CN105606536B (en) | A kind of polarization-maintaining photonic crystal fiber hydrogen gas sensor based on polarized light interference | |
| CN105258801A (en) | Polarization characteristic detection system of polarized light after passing through spherical alkali metal air chamber | |
| CN203117107U (en) | Device for detecting penetration rate of photochromic material | |
| CN203116948U (en) | Laser transverse mode discriminator | |
| CN107621447B (en) | Optical fiber ultrasensitive sensor capable of measuring liquid quality and humidity | |
| CN210572019U (en) | Fiber paper appearance detection device | |
| CN103592265B (en) | A kind of transmission-type scanning method of biochip | |
| CN219084504U (en) | Ash collecting device based on whiteness instrument detection requirement | |
| CN103983649B (en) | A kind of foreign matter detecting method based on light spectrum image-forming | |
| CN203414171U (en) | Object-space telecentric type chroma detecting lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |