CN102845832A - Cigarette filter tip, and manufacturing method and applications of cigarette filter tip - Google Patents
Cigarette filter tip, and manufacturing method and applications of cigarette filter tip Download PDFInfo
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- CN102845832A CN102845832A CN2012103531450A CN201210353145A CN102845832A CN 102845832 A CN102845832 A CN 102845832A CN 2012103531450 A CN2012103531450 A CN 2012103531450A CN 201210353145 A CN201210353145 A CN 201210353145A CN 102845832 A CN102845832 A CN 102845832A
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- fibroin
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Abstract
The invention provides a cigarette filter tip, in which a regenerated fibroin nanometer film is used. The filter tip comprises at least two filter layers, wherein a first filter layer is used as a tip core of the filter tip; the regenerated fibroin nanometer film is used as a second filter layer and is at least coated out of the first filter layer. The invention further provides a preparation method for manufacturing the regenerated fibroin nanometer film and applications of the regenerated fibroin nanometer film in cigarette. The cigarette filter tip provided by the invention can absorb a large amount of toxic materials in cigarette smoke, and the regenerated fibroin nanometer film coated out of a cellulose acetate fiber is capable of effectively preventing the cellulose acetate fiber thin filaments from being absorbed in a human body. The raw material of the invention is waste silkworm cocoon or waste silk, so that the production is greatly reduced.
Description
Technical field
The present invention relates to cigarette filter and manufacture method thereof and the application in cigarette.
Background technology
Contain more than 40 kind of carcinogen such as hundreds of kind harmful chemical composition, particularly tar, nitrosamine etc. in the smog that produces during cigarette combustion.In European Union, to the highest admissible tar content by 15 milligrams of 10 milligrams of being reduced to 2004 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 people's health perception also strengthens greatly, and the function of cigarette filter is also had higher requirement.At present, the whole world has the cigarette above 90% all using filter tip.
Since acetate fiber is done the cigarette filter material and put goods on the market in nineteen fifty-three, occupied most market shares.But in recent years, scientist's research is found: in smoking process, particularly when the smoker flicks cigarette or tongue and touches filter tip with finger, have several extremely tens of tiny fibers and split away off from filter tip.This diameter only has 20 microns fiber, can be with the smoke inhalation respiratory tract of high temperature, and the last smoker's of arrival that drives straight in alveolar tissue.The cancer patient that the researcher of the U.S. finds in smoking by the lobe of the lung histopathologic slide of excision on, a kind of trickle rhabodoid of flash of light is arranged, this is from the fiber of being infected with carcinogen in the cigarette filter.The German Research person also has same discovery, is rolled into one from the fibrous matter of cigarette filter, as hodmadod, can not be decomposed, and also can not be absorbed by the body, and they rest in the lobe of the lung tissue forever, finally cause canceration, become the core that cancer cell converges.
Along with improving constantly of health of people consciousness, tobacco is reacted to reducing the smog toxic component, and they concentrate on focus in the filter-tip improvement, in order to satisfy 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 enter smoker's lung, and is 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 the ground floor filter course is as the mouth core of filter tip, and the regenerated fibroin nanometer film is wrapped in the outside of three faces that the ground floor filter course contacts with smoker's lip at least as second layer filter course.
The present invention also provides the preparation method who makes with the cigarette filter of regenerated fibroin nanometer film, may further comprise the steps:
1) supply acetate fiber as filter tip mouth core;
2) by the high-voltage electrostatic spinning method silk fibroin protein solution is made the regenerated fibroin nanometer film;
3) the regenerated fibroin nanometer film that makes in the step 2 is wrapped in the outside of three faces that acetate fiber contacts with smoker's lip.
The present invention also provides a kind of cigarette with regenerated silk fibroin nano-film filtration mouth, comprise pipe tobacco part and filter tip, filter tip comprises two filter layers at least, wherein the ground floor filter course is as the mouth core of filter tip, it is characterized in that the regenerated fibroin nanometer film is wrapped in the outside of three faces that the ground floor filter course contacts with smoker's lip at least as second layer filter course.
The invention has the beneficial effects as follows: the regenerated fibroin nanometer film is comprised of hydrophobic amino acid and hydrophilic amino acid, can adsorb hydrophobic polycyclic aromatic hydrocarbon compounds and hydrophilic aldehyde compound in the flue gas.Can obviously reduce the cigarette mainstream smoke yield with the fibroin albumen nanometer film as filter tip.And the diameter of the fibroin fiber of the regenerated fibroin nanometer film of coming unstuck is between 0.1～3 μ m, and the acetate fiber diameter of commodity cigarette filter is about 30 μ m, and comparing the regenerated fibroin nanometer film has extraordinary effect as filter tip to adsorption filtration cigarette main flume with cellulose acetate filter.And the spacing distance between the fibroin fiber in the regenerated fibroin nanometer film is less than the diameter of acetate fiber, therefore, the outside that the regenerated fibroin nanometer film is wrapped in acetate fiber can effectively stop tiny acetate fiber to enter human body, has played the effect of acetate fiber filter membrane.
Description of drawings
The cross section diagram of Fig. 1 cigarette filter of the present invention.
Fig. 2 the present invention utilizes the electron-microscope scanning figure of the regenerated fibroin nanometer film that 5% silk fibroin water solution makes.
The specific embodiment
The present invention will be described in detail below in conjunction with concrete accompanying drawing.These specific embodiments only are limited the enumerating under spirit of the present invention, do not get rid of one of ordinary skill in the art prior art and the present invention in conjunction with and other specific embodiments of producing.
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 the regenerated fibroin nanometer film is as second layer filter course 2, and its second layer filter course is wrapped in the outside of three faces that the ground floor filter course contacts with smoker's lip at least.In the another kind of embodiment, second layer filter course wraps the ground floor filter course is whole.
Described regenerated fibroin nanometer film is comprised of regenerated fibroin fiber, and the diameter range of regenerated silk fiber is between 0.1～1 μ m.
The ground floor filter course is selected from one of acetate fiber, active carbon, binary carbon, polypropylene tows or paper.
Spacing distance between the fibroin fiber in the regenerated fibroin nanometer film is less than the diameter of acetate fiber in one embodiment, therefore, the outside that the regenerated fibroin nanometer film is wrapped in acetate fiber can effectively stop tiny acetate fiber to enter human body, has played the effect of acetate fiber filter membrane.
In another embodiment, between composite filter-tip that ground floor and second layer filter course form and cigarette cut tobacco, also comprise the three layer filtration layer.This filter course is selected from one of active carbon, binary carbon, polypropylene tows or paper.
Embodiment 1 prepares the cigarette filter with regenerated fibroin nanometer film indirectly
1) preparation of regenerated silk fibroin solution:
Cocoon is removed to be cut into behind the pupa cocoon sheet of about 1 cm of every length of side, put into 0.5% Na
2CO
3Carry out degumming process in the boiling water, the mass ratio of silk cocoon and the aqueous solution is 1: 100.Degumming process becomes fibrous silk cocoon to pull out oneself after 30 minutes to wring out, and repeatedly cleans with deionized water, repeats aforesaid operations 2 times, must fibrous boiled silk, i.e. fibrous fibroin after naturally drying under the room temperature.With fibrous fibroin and 42%CaCl
2Solution is mixing in 1: 25 in mass ratio, and be under 98 ℃ fibrous fibroin to be carried out dissolution process in temperature, dissolution time is 10 minutes, solution filter with gained, pour into bag filter after the cooling, deionized water 72 h that dialyse, at last with dislysate with the centrifugal regenerated silk fibroin solution that obtains of 8000 rev/mins speed.
2) preparation of regenerated fibroin nanometer film:
Utilize the standby regenerated fibroin nanometer film of high-voltage electrostatic spinning mechanism.The high-voltage electrostatic spinning machine comprises one with the syringe of the metal capillary feed system as spinning head and spinning solution.Metal capillary is linked to each other with the positive pole of high-voltage power supply.The silk receiving system links to each other with the negative pole of high-voltage power supply and ground connection.When electric field force reaches the surface tension that is enough to overcome drop, begin to form to spray thread, will be condensed into microfilament after the solvent evaporates, precipitate in receiver with the fibers form of Nano grade.
It is 5% silk fibroin water solution that the regenerated silk fibroin solution allocation that obtains in the step 1 is become mass percent, and the silk fibroin protein solution that configures is packed in the syringe, regulates the spout of spinning head and the angle and distance between the receiver.Receiver among this embodiment is tinfoil.The opening high pressure power supply, electrode and the high pressure between the passive electrode on the spinning nozzle apply electric field force to regenerated silk fibroin solution, form threadly under the effect of this voltage, begin this moment to collect.When collection on the tinfoil obtains certain thickness film, stop to spray.Take off the regenerated fibroin nanometer film of acquisition from tinfoil, for subsequent use.In a preferred scheme, the spacing distance between the fibroin fiber in its film of the film that obtains is less than the diameter of acetate fiber.
3) preparation is with the cigarette filter of regenerated fibroin nanometer film
With the mouth core of acetate fiber as cigarette filter, and on this mouth core outer wrapping by the regenerated fibroin nanometer film that obtains in the step 2.Cigarette tipping paper forms cigarette filter thereby selectable coated outside in the regenerated fibroin nanometer film is gone to temple to pray.In more excellent embodiment, cigarette cut tobacco main part and have between the regenerated fibroin nanometer film composite filter-tip and to place the filter tip with active carbon composition.
Another preferred embodiment in, before for the manufacture of filter tip, the alcohol with 30-50% carries out preliminary treatment first, raising regenerated fibroin nanometer film elasticity with the regenerated fibroin nanometer film that obtains in the step 2.
Embodiment 2 directly prepares the cigarette filter with 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.The high-pressure electrostatic weaving loom of preparation regenerated fibroin nanometer film and method of operating are with embodiment 1.
It is 5% silk fibroin water solution that the regenerated silk fibroin solution allocation that obtains in the step 1 is become mass percent, and the silk fibroin protein solution that configures is packed in the syringe, the angle and distance between the spout that regulates spinning head and the reception object.Reception object among this embodiment is columned acetate fiber, and acetate fiber is installed in can 360 on the cylinder of degree rotation.The opening high pressure power supply, electrode and the high pressure between the passive electrode on the spinning nozzle apply electric field force to regenerated silk fibroin solution, form threadly under the effect of this voltage, begin this moment to collect.When collection on the acetate fiber obtains certain thickness film, stop to spray, thereby prepare the cigarette filter with regenerated fibroin.
The Electronic Speculum that embodiment 3 usefulness contain the regenerated fibroin nanometer film that 5% regenerated fibroin solution makes is swept
It is 5% silk fibroin water solution that the regenerated silk fibroin solution allocation that obtains in embodiment 1 step 1 is become mass percent, and makes the regenerated fibroin nanometer film according to the method for step 2 among the embodiment 1.Adopt Hitachi's SEM (SEM) to the appearance pattern scanning analysis of the regenerated fibroin nanometer film of gained.The regenerated fibroin that as can be seen from Figure 2 when concentration is 5%, makes receive the dimension diameter be distributed in the scope of 0.1 ~ 1.0 μ m.Because absorption affinity and fiber specific area to flue gas have direct correlation, diameter is little, and then its specific area is larger, thereby more can increase the adsorption capacity to flue gas, so the regenerated fibroin nanometer film can both effectively be adsorbed composition in the cigarette.
The impact that embodiment 4 adopts the regenerated fibroin nanometer film as filter tip cigarette external appearance to be produced
Utilize the filter tip that obtains in embodiment 1 and 2 and cigarette body pipe tobacco part in conjunction with made cigarette.Its surface structure is unchanged, does not produce bad impact, does not also affect smoker's smoking impression.
Embodiment 5 smoking-simulating process analysis procedure analysis filter effects
The analysis of cigarette smoke composition when adopting the smoking-simulating process to smoking.The smoking-simulating condition is: the time with ear washing bulb smoking 1 time is 6 seconds ± 0.5 second, and it is 12 seconds ± 0.5 second that the flue gas in the ear washing bulb is transferred to the time used in the absorption liquid, i.e. be 12 seconds ± 0.5 second the blanking time between 2 the smoking action.Total organic principle in the cigarette is reduced by at least 40% than the organic components in the not filter-tipped flue gas after filtering through the filter tip that contains the regenerated fibroin nanometer film of the present invention by analysis.Use the filter tip ratio of composite regenerated fibroin nanometer film only to improve nearly about 20% with the filter effect of cellulose acetate filter.Because silk protein is to use wider as biomedical material at medical domain at present, it can be degraded in animal body voluntarily, animal body is had no side effect, can't degrade and produce the carcinogenesis ill effect relatively so be inhaled into lung with respect to acetate fiber, the regenerated fibroin nanometer film has preferably biological safety.When the regenerated fibroin nanometer film is wrapped in the acetate fiber outside, can effectively stop the acetate fiber particle to enter human body.
Claims (10)
1. cigarette filter, at least comprise two filter layers, wherein the ground floor filter course is characterized in that as the mouth core of filter tip, and the regenerated fibroin nanometer film is wrapped in the outside of three faces that the ground floor filter course contacts with smoker's lip at least as second layer filter course.
2. cigarette filter according to claim 1 is characterized in that, the diameter range of its regenerated fibroin fiber of regenerated fibroin nanometer film is between 0.1～3 μ m.
3. filter tip according to claim 1 is characterized in that, the ground floor filter course is selected from one of acetate fiber, active carbon, binary carbon, polypropylene tows or paper.
4. cigarette filter according to claim 1 is characterized in that, also comprises the three layer filtration layer, and described filter course is between ground floor and second layer filter course and cigarette cut tobacco.
5. the preparation method of cigarette filter may further comprise the steps:
Provide acetate fiber as filter tip mouth core;
By the high-voltage electrostatic spinning method silk fibroin protein solution is made the regenerated fibroin nanometer film;
The regenerated fibroin nanometer film that makes in the step 2 is wrapped in the outside of three faces that acetate fiber contacts with smoker's lip.
6. preparation method according to claim 5 is characterized in that, described silk fibroin protein solution obtains by the following method: Cocoon is removed to be cut into behind the pupa cocoon sheet of about 1 cm of every length of side, put into 0.5% Na
2CO
3Carry out degumming process in the boiling water, the mass ratio of silk cocoon and the aqueous solution is 1: 100; Degumming process becomes fibrous silk cocoon to pull out oneself after 30 minutes to wring out, and repeatedly cleans with deionized water, repeats aforesaid operations 2 times, must fibrous boiled silk, i.e. fibrous fibroin after naturally drying under the room temperature; With fibrous fibroin and 42%CaCl
2Solution is mixing in 1: 25 in mass ratio, and be under 98 ℃ fibrous fibroin to be carried out dissolution process in temperature, dissolution time is 10 minutes, solution filter with gained, pour into bag filter after the cooling, deionized water 72 h that dialyse, at last with dislysate with the centrifugal silk fibroin solution that obtains of 8000 rev/mins speed.
7. cigarette filter according to claim 6 is characterized in that, service property (quality) percentage is 5% silk fibroin solution during preparation regenerated fibroin nanometer film.
8. cigarette filter according to claim 5 is characterized in that, the regenerated fibroin nanometer film is processed through 30-50% alcohol.
9. be with filter-tipped cigarette for one kind, comprise pipe tobacco part and filter tip, filter tip comprises two filter layers at least, wherein the ground floor filter course is as the mouth core of filter tip, it is characterized in that the regenerated fibroin nanometer film is wrapped in the outside of three faces that the ground floor filter course contacts with smoker's lip at least as second layer filter course.
10. filter tip according to claim 9 is characterized in that, the ground floor filter course is selected from one of acetate fiber, active carbon, binary carbon, polypropylene tows or paper.
Priority Applications (1)
| 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 true CN102845832A (en) | 2013-01-02 |
| CN102845832B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625089A (en) * | 2013-11-18 | 2014-03-12 | 湖南中烟工业有限责任公司 | Preparation method and application of nanofiber membrane-modified cellulose molding paper |
| CN107955073A (en) * | 2017-11-17 | 2018-04-24 | 徐智辉 | The preparation method and filter tip of a kind of biological activity protein material for cigaratte filter |
| CN107969731A (en) * | 2017-11-17 | 2018-05-01 | 徐智辉 | A kind of cigaratte filter and the preparation method for the filter tip biological activity protein material |
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| 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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625089A (en) * | 2013-11-18 | 2014-03-12 | 湖南中烟工业有限责任公司 | Preparation method and application of nanofiber membrane-modified cellulose molding paper |
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| CN107955073A (en) * | 2017-11-17 | 2018-04-24 | 徐智辉 | The preparation method and filter tip of a kind of biological activity protein material for cigaratte filter |
| CN107969731A (en) * | 2017-11-17 | 2018-05-01 | 徐智辉 | A kind of cigaratte filter and the preparation method for the filter tip biological activity protein material |
| 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 |
| 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 |
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| CN102845832B (en) | 2016-03-23 |
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