CN203072870U - cigarette filter and cigarette equipped therewith - Google Patents
cigarette filter and cigarette equipped therewith Download PDFInfo
- Publication number
- CN203072870U CN203072870U CN 201220482126 CN201220482126U CN203072870U CN 203072870 U CN203072870 U CN 203072870U CN 201220482126 CN201220482126 CN 201220482126 CN 201220482126 U CN201220482126 U CN 201220482126U CN 203072870 U CN203072870 U CN 203072870U
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- filter
- cigarette
- fibroin
- regenerated
- nanometer film
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Abstract
This utility model discloses a cigarette filter utilizing a regenerative fibroin nanometer membrane, which comprises at least two filter layers. A first filter layer is a filter core of the filter; the regenerative fibroin nanometer membrane is a second filter layer and at least packages the outside of the first filter layer. This utility model also provides a cigarette with the regenerative fibroin nanometer membrane. The cigarette filter produced by the utility model can absorb substantial toxic substances in the smoke of a cigarette and the regenerative fibroin nanometer membrane wraps acetate fibers to effectively prevent the acetate fiber yarn from being inhaled into the human body. Raw materials of the utility model are waste silkworm cocoons or waste silk, and the cost is reduced greatly.
Description
Technical field
The utility model relates to cigarette filter and filter-tipped 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 discovers: in smoking process, particularly when the smoker flicks cigarette or tongue and touches filter tip with finger, have and severally split away off from filter tip to tens of tiny fibers.This diameter has only 20 microns fiber, can suck respiratory tract with the smog 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, so that satisfy the requirement of new health of people and regulation standard.Though 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 purpose of this utility model 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 utility model also provides the preparation method who makes the cigarette filter that has the 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 utility model also provides a kind of cigarette that has 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 beneficial effects of the utility model are: the regenerated fibroin nanometer film is made up 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 littler 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 sectional view of Fig. 1 cigarette filter described in the utility model.
The specific embodiment
Below in conjunction with concrete accompanying drawing the utility model is described in detail.These specific embodiments only are limited the enumerating under the utility model spirit, do not get rid of one of ordinary skill in the art prior art and the utility model 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 made up 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 littler 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 are formed 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.
1) preparation of regenerated silk fibroin solution:
Tame silk 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
3The processing of coming unstuck in the boiling water, the mass ratio of the silk cocoon and the aqueous solution is 1: 100.Coming unstuck to handle 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, after drying naturally under the room temperature fibrous boiled silk, promptly fibrous fibroin.With fibrous fibroin and 42%CaCl
2Solution is mixing in 1: 25 by mass ratio, and be under 98 ℃ fibrous fibroin to be carried out dissolution process in temperature, dissolution time is 10 minutes, the solution of gained is filtered, 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 high-voltage electrostatic spinning mechanism to be equipped with the regenerated fibroin nanometer film.The high-voltage electrostatic spinning machine comprises a feed system that has the syringe of metal capillary as spinning head and spinning solution.Metal capillary is linked to each other with the positive pole of high-voltage power supply.The wire connection receiving apparatus 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 receiving on the thing 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, the angle and distance between the spout that regulates spinning head and the reception thing.Reception thing among this embodiment is a tinfoil.Open high voltage source, electrode on the spinning nozzle and the high pressure between the passive electrode apply electric field force for 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, standby.In a preferred scheme, the spacing distance between the fibroin fiber in its film of the film that is obtained is littler than the diameter of acetate fiber.
3) preparation has 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 filter tip with active carbon composition.
Another preferred embodiment in, before being used to make filter tip, the alcohol with 30-50% carries out preliminary treatment earlier, raising regenerated fibroin nanometer film elasticity with the regenerated fibroin nanometer film that obtains in the step 2.
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.Open high voltage source, electrode on the spinning nozzle and the high pressure between the passive electrode apply electric field force for 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 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 the appearance pattern scanning analysis of Hitachi's SEM (SEM) to the regenerated fibroin nanometer film of gained.Be that the regenerated fibroin that made in 5% o'clock is received the diameter of dimension and is distributed in the scope of 0.1 ~ 1.0 μ m in concentration as can be seen therefrom.Because absorption affinity and fiber specific area to flue gas have direct correlation, diameter is little, and then its specific area is bigger, 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 influence that embodiment 4 adopts the regenerated fibroin nanometer film as filter tip the cigarette outward appearance to be produced
Utilize the filter tip that is obtained in embodiment 1 and 2 to combine made cigarette with cigarette body pipe tobacco part.Its surface structure no change does not produce bad influence, does not influence smoker's smoking impression yet.
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 described in the utility model 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 biological safety preferably.When the regenerated fibroin nanometer film is wrapped in the acetate fiber outside, can stop the acetate fiber particle to enter human body effectively.
Claims (6)
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. cigarette filter 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 the 3rd filter course is between ground floor and second layer filter course and cigarette cut tobacco.
5. one kind has filter-tip cigarette, 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.
6. according to claim 5ly have filter-tip cigarette, it 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 |
|---|---|---|---|
| CN 201220482126 CN203072870U (en) | 2012-09-20 | 2012-09-20 | cigarette filter and cigarette equipped therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482126 CN203072870U (en) | 2012-09-20 | 2012-09-20 | cigarette filter and cigarette equipped therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203072870U true CN203072870U (en) | 2013-07-24 |
Family
ID=48818772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220482126 Expired - Fee Related CN203072870U (en) | 2012-09-20 | 2012-09-20 | cigarette filter and cigarette equipped therewith |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203072870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105768217A (en) * | 2016-04-28 | 2016-07-20 | 南京凤源新材料科技有限公司 | Stub made from glass fiber |
| CN107313282A (en) * | 2017-07-03 | 2017-11-03 | 浙江大学 | A kind of vegetable protein nanofiber extrusion coating paper and its preparation method and application |
-
2012
- 2012-09-20 CN CN 201220482126 patent/CN203072870U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105768217A (en) * | 2016-04-28 | 2016-07-20 | 南京凤源新材料科技有限公司 | Stub made from glass fiber |
| CN107313282A (en) * | 2017-07-03 | 2017-11-03 | 浙江大学 | A kind of vegetable protein nanofiber extrusion coating paper and its preparation method and application |
| CN107313282B (en) * | 2017-07-03 | 2019-07-30 | 浙江大学 | A kind of vegetable protein nanofiber extrusion coating paper and its preparation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20180920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |