CN102845832B - Cigarette filter and manufacture method thereof and application - Google Patents
Cigarette filter and manufacture method thereof and application Download PDFInfo
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- CN102845832B CN102845832B CN201210353145.0A CN201210353145A CN102845832B CN 102845832 B CN102845832 B CN 102845832B CN 201210353145 A CN201210353145 A CN 201210353145A CN 102845832 B CN102845832 B CN 102845832B
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- filter
- fibroin
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- nanometer film
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Abstract
The invention provides a kind of cigarette filter using regenerated fibroin nanometer film, this filter tip at least comprises two filter layers, wherein ground floor filter course is as the mouth core of filter tip, and regenerated fibroin nanometer film is at least wrapped in outside ground floor filter course as second layer filter course.Present invention also offers and manufacture this preparation method of regenerated fibroin nanometer film and the application in cigarette.Cigarette filter of the present invention can absorb noxious materials a large amount of in cigarette smoke, and regenerated fibroin nanometer film is wrapped in outside acetate fiber, can effectively stop acetate fiber filament to be inhaled into human body.Raw material of the present invention are useless silk cocoon or useless silk, therefore greatly reduce production cost.
Description
Technical field
The present invention relates to cigarette filter and manufacture method thereof and the application in cigarette.
Background technology
Containing more than 40 kind of carcinogen such as chemical composition, particularly tar, nitrosamine etc. that hundreds of kind is harmful in the smog produced during cigarette combustion.In European Union, the highest admissible tar content is reduced to 10 milligrams in 2004 by 15 milligrams in 1993.In February, 2005, the Framework Convention on Tobacco Control of the World Health Organization comes into force, and the Tobacco Control activity in the whole world increases, and the health perception of people also strengthens greatly, it is also proposed higher requirement to the function of cigarette filter.At present, the whole world has the cigarette more than 90% all using filter tip.
Acetate fiber has done cigarette filter material since nineteen fifty-three puts goods on the market, and occupies most market shares.But in recent years, the research of scientist finds: in smoking process, particularly when smoker with finger flick cigarette or tongue touch filter tip time, have and severally to split away off from filter tip to tens of tiny fibers.This diameter only has the fiber of 20 microns, can with the smoke inhalation respiratory tract of high temperature, and the last alveolar tissue arriving smoker of driving straight in.The researcher of the U.S. sends out the cancer patient of Current smoking by the lobe of the lung histopathologic slide of surgery excision, and have a kind of trickle rhabodoid of flash of light, this is the fiber from being infected with carcinogen in cigarette filter.German researchers also has same discovery, and the fibrous matter from cigarette filter is rolled into one, and as hodmadod, can not be decomposed, also can not be absorbed by the body, they rest in lobe of the lung tissue forever, finally cause canceration, becomes the core that cancer cell converges.
Along with improving constantly of health of people consciousness, tobacco is reacted to minimizing smog toxic component, and they concentrate on focus in filter-tip improvement, to meet the requirement of the new health of people and regulation standard.Although acetate fiber can reduce the soakage of tar and nicotine more effectively, its tiny fiber is very easy to the lung entering smoker, unhealthful.
Summary of the invention
In order to overcome above-mentioned shortcoming, the object of the present invention is to provide a kind of cigarette filter, at least comprise two filter layers, wherein ground floor filter course is as the mouth core of filter tip, and regenerated fibroin nanometer film is at least wrapped in the outside in three faces of ground floor filter course and smoker's lip contact as second layer filter course.
Present invention also offers the preparation method manufactured with the cigarette filter of regenerated fibroin nanometer film, comprise the following steps:
1) supply acetate fiber as filter tip mouth core;
2) by high-voltage electrostatic spinning method, silk fibroin protein solution is made regenerated fibroin nanometer film;
3) obtained in step 2 regenerated fibroin nanometer film is wrapped in the outside in three faces of acetate fiber and smoker's lip contact.
Present invention also offers a kind of cigarette with regenerated silk fibroin nano-film filtration mouth, comprise tobacco section and filter tip, filter tip at least comprises two filter layers, wherein ground floor filter course is as the mouth core of filter tip, it is characterized in that, regenerated fibroin nanometer film is at least wrapped in the outside in three faces of ground floor filter course and smoker's lip contact as second layer filter course.
The invention has the beneficial effects as follows: regenerated fibroin nanometer film is made up of hydrophobic amino acid and hydrophilic amino acid, hydrophobic polycyclic aromatic hydrocarbon compounds and hydrophilic aldehyde compound in flue gas can be adsorbed.Cigarette mainstream smoke yield can be obviously reduced as filter tip by fibroin albumen nanometer film.And the diameter of the fibroin fiber of the regenerated fibroin nanometer film of coming unstuck is between 0.1 ~ 3 μm, and the acetate fiber diameter of commodity cigarette filter is at about 30 μm, regenerated fibroin nanometer film has extraordinary effect as filter tip to adsorption filtration cigarette main flume compared with cellulose acetate filter.And spacing distance between fibroin fiber in regenerated fibroin nanometer film is less than the diameter of acetate fiber, therefore, the outside that regenerated fibroin nanometer film is wrapped in acetate fiber can effectively stop tiny acetate fiber to enter human body, serves the effect of acetate fiber filter membrane.
Accompanying drawing explanation
The cross section diagram of Fig. 1 cigarette filter of the present invention.
The electron-microscope scanning figure of the regenerated fibroin nanometer film that Fig. 2 the present invention utilizes the silk fibroin water solution of 5% to obtain.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the present invention will be described in detail.These specific embodiments are only without prejudice to the limited list under spirit of the present invention, do not get rid of other specific embodiments that one of ordinary skill in the art combines prior art and the present invention and produce.
Cigarette filter sectional view as shown in Figure 1, comprise two filter layers, wherein ground floor filter course 1 is as the mouth core of filter tip, and regenerated fibroin nanometer film is as second layer filter course 2, and its second layer filter course is at least wrapped in the outside in three faces of ground floor filter course and smoker's lip contact.In another kind of embodiment, second layer filter course wraps whole for ground floor filter course.
Described regenerated fibroin nanometer film is made up of regenerated fibroin fiber, and the diameter range of regenerated silk fiber is between 0.1 ~ 1 μm.
Ground floor filter course is selected from acetate fiber, active carbon, binary carbon, one of polypropylene tows or paper.
Spacing distance between fibroin fiber in one embodiment in regenerated fibroin nanometer film is less than the diameter of acetate fiber, therefore, the outside that regenerated fibroin nanometer film is wrapped in acetate fiber can effectively stop tiny acetate fiber to enter human body, serves the effect of acetate fiber filter membrane.
In another embodiment, between the composite filter-tip formed at ground floor and second layer filter course and cigarette cut tobacco, also comprise third layer filter course.This filter course is selected from active carbon, binary carbon, one of polypropylene tows or paper.
Embodiment 1 indirectly preparation has the cigarette filter of regenerated fibroin nanometer film
1) preparation of regenerated silk fibroin solution:
Be cut into the cocoon sheet that every length of side is about 1cm after Cocoon being removed pupa, put into 0.5%Na
2cO
3carry out degumming process in boiling water, the mass ratio of silk cocoon and the aqueous solution is 1: 100.The fibrous silk cocoon of oneself one-tenth is pulled out after 30 minutes and is wrung out by degumming process, and repeatedly cleans by deionized water, repeats aforesaid operations 2 times, obtains fibrous boiled silk, i.e. fibrous fibroin after naturally drying under room temperature.By fibrous fibroin and 42%CaCl
2solution is 1: 25 mixing in mass ratio, and at temperature is 98 DEG C, dissolution process is carried out to fibrous fibroin, dissolution time is 10 minutes, the solution of gained is filtered, bag filter is poured into after cooling, deionized water dialysis 72h, finally obtains regenerated silk fibroin solution by dislysate with the centrifugation of 8000 revs/min.
2) preparation of regenerated fibroin nanometer film:
Utilize the standby regenerated fibroin nanometer film of high-voltage electrostatic spinning mechanism.High-voltage electrostatic spinning machine comprises a syringe with metal capillary as the feed system of spinning head and spinning solution.Metal capillary is connected with the positive pole of high-voltage power supply.Silk receiving system is connected with the negative pole of high-voltage power supply and ground connection.Start when electric field force reaches the surface tension being enough to overcome drop to be formed and spray thread, will microfilament be condensed into after solvent volatilization, and precipitate in receiver with the fibers form of Nano grade.
The regenerated silk fibroin solution allocation obtained in step 1 is become mass percent be 5% silk fibroin water solution, the silk fibroin protein solution that configures is loaded in syringe, regulates the angle and distance between the spout of spinning head and receiver.Receiver in this embodiment is tinfoil.Open high voltage source, the electrode on spinning nozzle and the high pressure between passive electrode apply electric field force to regenerated silk fibroin solution, are formed thread under the effect of this voltage, now start to collect.When collection on tinfoil obtains certain thickness film, stop spraying.The regenerated fibroin nanometer film obtained is taken off from tinfoil, for subsequent use.In a preferred scheme, the spacing distance between the fibroin fiber in its film of the film obtained is less than the diameter of acetate fiber.
3) preparation is with the cigarette filter of regenerated fibroin nanometer film
Using the mouth core of acetate fiber as cigarette filter, and by the regenerated fibroin nanometer film obtained in step 2 in this mouth core outer wrapping.The selectable outside in regenerated fibroin nanometer film superscribes fragrant cigarette tipping paper thus forms cigarette filter.In more excellent embodiment, cigarette cut tobacco main part and have to place between regenerated fibroin nanometer film composite filter-tip there is the filter tip of active carbon composition.
Another preferred embodiment in, by the regenerated fibroin nanometer film that obtains in step 2 before for the manufacture of filter tip, first carry out pretreatment with the alcohol of 30-50%, raising regenerated fibroin nanometer film elasticity.
Embodiment 2 directly preparation has the cigarette filter of regenerated fibroin nanometer film
The preparation method of the regenerated silk fibroin solution in the present embodiment is with the step 1 of embodiment 1.Prepare the high-pressure electrostatic weaving loom of regenerated fibroin nanometer film and method of operating with embodiment 1.
The regenerated silk fibroin solution allocation obtained in step 1 is become mass percent be 5% silk fibroin water solution, the silk fibroin protein solution that configures is loaded in syringe, the spout regulating spinning head and the angle and distance received between object.Reception object in this embodiment is columned acetate fiber, acetate fiber be arranged on can 360 degree rotate cylinders on.Open high voltage source, the electrode on spinning nozzle and the high pressure between passive electrode apply electric field force to regenerated silk fibroin solution, are formed thread under the effect of this voltage, now start to collect.When collection on acetate fiber obtains certain thickness film, stop spraying, thus prepare the cigarette filter with regenerated fibroin.
Embodiment 3 Electronic Speculum of the regenerated fibroin nanometer film that the regenerated fibroin solution containing 5% obtains is swept
The regenerated silk fibroin solution allocation obtained in embodiment 1 step 1 is become mass percent be 5% silk fibroin water solution, and obtain regenerated fibroin nanometer film according to the method for step 2 in embodiment 1.Hitachi's SEM (SEM) is adopted to analyze the appearance topography scan of the regenerated fibroin nanometer film of gained.As can be seen from Figure 2 the regenerated fibroin obtained when concentration is 5% receive dimension diameter be distributed in the scope of 0.1 ~ 1.0 μm.Owing to having direct correlation to the absorption affinity of flue gas and fiber specific area, diameter is little, then its specific area is larger, and thus more can increase the adsorption capacity to flue gas, therefore regenerated fibroin nanometer film can effectively adsorb composition in cigarette.
The impact that embodiment 4 adopts regenerated fibroin nanometer film to produce cigarette external appearance as filter tip
Utilize the filter tip obtained in embodiment 1 and 2 be combined with cigarette body tobacco section made by cigarette.Its surface structure is unchanged, does not produce bad impact, does not also affect the smoking experience of smoker.
Embodiment 5 smoking-simulating process analysis procedure analysis filter effect
Adopt smoking-simulating process to the analysis of cigarette smoke composition during smoking.Smoking-simulating condition is: be 6 seconds ± 0.5 second with the time of ear washing bulb smoking 1 time, and the flue gas in ear washing bulb being transferred to the time used in absorbing liquid is 12 seconds ± 0.5 second, and the interval time namely between 2 smoking actions is 12 seconds ± 0.5 second.Total organic principle by analysis in cigarette is reduced by least 40% than the organic components in not filter-tipped flue gas after filtering through the filter tip containing regenerated fibroin nanometer film of the present invention.The filter tip of composite regenerated fibroin nanometer film is used to improve nearly about 20% than the filter effect only by cellulose acetate filter.Because silk protein is wider in medical domain application as biomedical material at present, it can be degraded in animal body voluntarily, animal body is had no side effect, cannot degrade so be inhaled into lung relative to acetate fiber and produce carcinogenesis ill effect relatively, regenerated fibroin nanometer film has good biological safety.When regenerated fibroin nanometer film is wrapped in outside acetate fiber, acetate fiber particle can be effectively stoped to enter human body.
Claims (6)
1. a cigarette filter, at least comprise two filter layers, wherein ground floor filter course adopts acetate fiber as the mouth core of filter tip, it is characterized in that, regenerated fibroin nanometer film is at least wrapped in the outside of ground floor filter course as second layer filter course, before regenerated fibroin nanometer film is wrapped in ground floor filter course, first use the ethanol postincubation of 30-50%, the diameter of the regenerated fibroin fiber of described fibroin nanometer film is distributed in the scope of 0.1 ~ 1.0 μm, and spacing distance between fibroin fiber in film is less than the diameter of acetate fiber.
2. cigarette filter according to claim 1, is characterized in that, described regenerated fibroin nanometer film is standby by high-voltage electrostatic spinning legal system.
3. cigarette filter according to claim 1, is characterized in that, also comprises third layer filter course between the filter tip that ground floor and second layer filter course form and cigarette cut tobacco.
4. the preparation method of cigarette filter, comprises the following steps:
1) provide ground floor filter course, described ground floor filter course adopts acetate fiber as filter tip mouth core;
2) by high-voltage electrostatic spinning method, silk fibroin protein solution is made regenerated fibroin nanometer film;
3) obtained in step 2 regenerated fibroin nanometer film is at least wrapped in the outside of ground floor filter course as second layer filter course, regenerated fibroin nanometer film, before manufacture filter tip, first uses the ethanol postincubation of 30-50%;
Wherein, described silk fibroin protein solution obtains by the following method: the cocoon sheet being cut into every length of side 1cm after Cocoon being removed pupa, puts into 0.5%Na
2cO
3carry out degumming process in boiling water, the mass ratio of silk cocoon and the aqueous solution is 1: 100; The fibrous silk cocoon of oneself one-tenth is pulled out after 30 minutes and is wrung out by degumming process, and repeatedly cleans by deionized water, repeats aforesaid operations 2 times, obtains fibrous boiled silk, i.e. fibrous fibroin after naturally drying under room temperature; By fibrous fibroin and 42%CaCl
2solution is 1: 25 mixing in mass ratio, and at temperature is 98 DEG C, dissolution process is carried out to fibrous fibroin, dissolution time is 10 minutes, the solution of gained is filtered, bag filter is poured into after cooling, deionized water dialysis 72h, finally obtains silk fibroin solution by dislysate with the centrifugation of 8000 revs/min;
Configuration quality percentage is the silk fibroin water solution of 5%, the silk fibroin protein solution configured is loaded in syringe, regulate the angle and distance between the spout of spinning head and tinfoil, open high voltage source, electrode on spinning nozzle and the high pressure between passive electrode apply electric field force to regenerated silk fibroin solution, formed thread under the effect of this voltage, now start to collect, when collection on tinfoil obtains certain thickness film, stop spraying, the regenerated fibroin nanometer film obtained is taken off from tinfoil, the diameter of regenerated fibroin fiber is distributed in the scope of 0.1 ~ 1.0 μm, and the spacing distance between the fibroin fiber in its film is less than the diameter of acetate fiber.
5. the filter-tipped cigarette of band, comprise tobacco section and filter tip, filter tip at least comprises two filter layers, wherein acetate fiber is as the mouth core of filter tip, it is characterized in that regenerated fibroin nanometer film is at least wrapped in the outside of ground floor filter course as second layer filter course, regenerated fibroin nanometer film is before manufacture filter tip, first use the ethanol postincubation of 30-50%, the diameter of the regenerated fibroin fiber of described fibroin nanometer film is distributed in the scope of 0.1 ~ 1.0 μm, and the spacing distance between the fibroin fiber in film is less than the diameter of acetate fiber.
6. the filter-tipped cigarette of band according to claim 5, is characterized in that, also comprises third layer filter course between the filter tip that ground floor and second layer filter course form and cigarette cut tobacco.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210353145.0A CN102845832B (en) | 2012-09-20 | 2012-09-20 | Cigarette filter and manufacture method thereof and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210353145.0A CN102845832B (en) | 2012-09-20 | 2012-09-20 | Cigarette filter and manufacture method thereof and application |
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| CN102845832A CN102845832A (en) | 2013-01-02 |
| CN102845832B true CN102845832B (en) | 2016-03-23 |
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| CN201210353145.0A Expired - Fee Related CN102845832B (en) | 2012-09-20 | 2012-09-20 | Cigarette filter and manufacture method thereof and application |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103625089B (en) * | 2013-11-18 | 2015-10-28 | 湖南中烟工业有限责任公司 | The preparation method of nano fibrous membrane modified cellulose forming paper and application thereof |
| CN107955073B (en) * | 2017-11-17 | 2019-04-02 | 徐智辉 | A kind of preparation method and filter tip of the biological activity protein material for cigaratte filter |
| CN107969731B (en) * | 2017-11-17 | 2018-12-25 | 徐智辉 | A kind of cigaratte filter and the preparation method for the filter tip biological activity protein material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2236240Y (en) * | 1995-01-09 | 1996-10-02 | 马重子 | Cigarette tip eliminating nicotine and improving smell |
| CN1587459A (en) * | 2004-09-07 | 2005-03-02 | 东华大学 | Process for producing regenerated silk protein super fine fiber |
| CN101032346A (en) * | 2007-04-12 | 2007-09-12 | 苏州大学 | Cocoon fibre cigarette filter tip and producing method |
| CN102178350A (en) * | 2011-04-07 | 2011-09-14 | 红云红河烟草(集团)有限责任公司 | Silk protein compound filter tip and preparing method thereof |
| CN102669820A (en) * | 2012-05-23 | 2012-09-19 | 苏州大学 | Cigarette filter and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090017747A (en) * | 2007-08-16 | 2009-02-19 | 염정현 | Porous nano nonwoven cigarette filter with functional agent and process therefore |
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2012
- 2012-09-20 CN CN201210353145.0A patent/CN102845832B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2236240Y (en) * | 1995-01-09 | 1996-10-02 | 马重子 | Cigarette tip eliminating nicotine and improving smell |
| CN1587459A (en) * | 2004-09-07 | 2005-03-02 | 东华大学 | Process for producing regenerated silk protein super fine fiber |
| CN101032346A (en) * | 2007-04-12 | 2007-09-12 | 苏州大学 | Cocoon fibre cigarette filter tip and producing method |
| CN102178350A (en) * | 2011-04-07 | 2011-09-14 | 红云红河烟草(集团)有限责任公司 | Silk protein compound filter tip and preparing method thereof |
| CN102669820A (en) * | 2012-05-23 | 2012-09-19 | 苏州大学 | Cigarette filter and preparation method thereof |
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