CN1120679C - Cigarette filter tip for inhibiting nitroxide free redical and its preparing method - Google Patents
Cigarette filter tip for inhibiting nitroxide free redical and its preparing method Download PDFInfo
- Publication number
- CN1120679C CN1120679C CN 00127419 CN00127419A CN1120679C CN 1120679 C CN1120679 C CN 1120679C CN 00127419 CN00127419 CN 00127419 CN 00127419 A CN00127419 A CN 00127419A CN 1120679 C CN1120679 C CN 1120679C
- Authority
- CN
- China
- Prior art keywords
- cigarette filter
- free radical
- filter
- effective ingredient
- filter tip
- 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.)
- Expired - Fee Related
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000002401 inhibitory effect Effects 0.000 title abstract description 7
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical class ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 title 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 52
- 150000008442 polyphenolic compounds Chemical class 0.000 claims abstract description 39
- 235000013824 polyphenols Nutrition 0.000 claims abstract description 39
- 150000003254 radicals Chemical class 0.000 claims abstract description 28
- 238000007654 immersion Methods 0.000 claims abstract description 27
- 239000004615 ingredient Substances 0.000 claims abstract description 27
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229930003268 Vitamin C Natural products 0.000 claims abstract description 26
- 235000019154 vitamin C Nutrition 0.000 claims abstract description 26
- 239000011718 vitamin C Substances 0.000 claims abstract description 26
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000012153 distilled water Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000005764 inhibitory process Effects 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 24
- 239000003963 antioxidant agent Substances 0.000 claims description 14
- 230000003078 antioxidant effect Effects 0.000 claims description 14
- 235000006708 antioxidants Nutrition 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 13
- 239000001301 oxygen Substances 0.000 abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 abstract 1
- 241001122767 Theaceae Species 0.000 abstract 1
- 238000007791 dehumidification Methods 0.000 abstract 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 abstract 1
- -1 oxygen radical Chemical class 0.000 description 8
- 239000000203 mixture Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 244000269722 Thea sinensis Species 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000722949 Apocynum Species 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 231100000357 carcinogen Toxicity 0.000 description 2
- 239000003183 carcinogenic agent Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 229920006221 acetate fiber Polymers 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 150000001768 cations Chemical group 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000000018 nitroso group Chemical group N(=O)* 0.000 description 1
- XKLJHFLUAHKGGU-UHFFFAOYSA-N nitrous amide Chemical compound ON=N XKLJHFLUAHKGGU-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The present invention discloses a cigarette filter tip capable of inhibiting nitrogen and oxygen free radicals and a method for preparing the cigarette filter tip, wherein the cigarette filter tip takes a filter tip as a carrier and takes tea polyphenol and vitamin C as effective ingredients. Tea polyphenol and vitamin C which have the weight ratio of 2:1 to 10:1 are prepared into immersion fluid by ethanol and distilled water for immersing the filter tip, and the fluid is extracted for dehumidification; or the immersion fluid is mixed with an amount of adhesive and is then sprayed onto a thread bundle, so that the cigarette filter tip capable of inhibiting nitrogen and oxygen free radicals is obtained. The filter tip which is connected to a common cigarette can improve the inhibition ratios of nitric oxide and oxygen free radicals to 35.2 to 69% and 32.3 to 71.9% respectively; simultaneously, the inhibition ratio to nitrogen dioxide can reach 10 to 18%.
Description
The present invention relates to a kind of cigarette filter and preparation method thereof, particularly relate to a kind of inhibition NO free radical cigarette filter and preparation method thereof.
Because it is saline and alkaline to contain the harmful substance and the abundant tertiary amines of tar, solid phase in the tobacco.Particularly the tertiary amines of gas phase class is saline and alkaline, in the moment of smoking and suction, generation is comprised N-nitroso thing at interior various strong carcinogens, nitrogen oxide type then is the main precursor of carcinogenicity N-nitrosamine, cause the DNA oxidation, destroy the gene base, cause dna damage etc.
For addressing these problems, in recent years, all adopt the harmful substance of removing cigarette by NACF or acetate fiber filter tip both at home and abroad in succession.But these measures can only suppress the harmful substance of tar and solid phase, and produce effects very few to the carcinogen that suppresses the gas phase class.For suppressing the murder by poisoning of cigarette smoke, people have launched research to various interpolation materials, adopt as Chinese patent 9811479.2 and add the method that is loaded with the metal oxide zeolite, reduce the NOC in the flue gas.And for example CN1145206A has disclosed a kind of low free radical and low toxicity cigarette and production method thereof, adds bluish dogbane medicinal extract and remove the solid phase free radical in pipe tobacco, is mixed and made into filter tip with Tea Polyphenols and vitamin C with finite concentration and active carbon.Also particularly point out, Tea Polyphenols, bluish dogbane and ascorbic combination are necessary, and show with detailed data, and Tea Polyphenols and ascorbic proportioning are to have best removing effect at 1: 1 o'clock.Because it is the circle of carrier that this patent application do not jump out with the active carbon, make the absorption of effective ingredient be subject to quantity and its uniformity that in filter tip, distributes of active carbon.And, being mixed and made under the aggregate measures of filter tip with the bluish dogbane tobacco shred immersion and with Tea Polyphenols and vitamin C and active carbon taking, its gas phase clearance rate also only is 26.8%.
It is that carrier is adsorbed with effective constituent with the filter tip that purpose of the present invention just provides a kind of, and can obviously improve the gas phase clearance rate, effectively suppresses the NO free radical cigarette filter.
Another object of the present invention just provides a kind of method that suppresses the NO free radical cigarette filter of producing.
Task of the present invention is achieved in that with the filter tip to be carrier, the effective ingredient that absorption is made up of antioxidant Tea Polyphenols and synergist vitamin C, and Tea Polyphenols and ascorbic weight ratio are 2: 1~10: 1.By the Tea Polyphenols that extracts in the natural tea, safety non-toxic has very strong anti-oxidation function, is the strong scavenger of super qi oxide cation group and the main active oxygen of hydroxyl groups two classes and desirable nitroso thing nertralizer.Add natural synergic agent vitamin C again, can suppress NO free radical more effective, all sidedly.
Another task of the present invention is achieved in that (1). is weight ratio that 2: 1~10: 1 Tea Polyphenols and vitamin C dissolves with ethanol, adds an amount of distilled water, is mixed with the immersion liquid agent; (2). cigarette filter is placed in the immersion liquid agent soaks, soak into filter fiber fully, make effective ingredient in the immersion liquid agent be evenly distributed in the surface of filter fiber until the immersion liquid agent; (3). roll immersion liquid agent unnecessary in the filter fiber; (4). low temperature dries, and must suppress the NO free radical cigarette filter.
Another task of the present invention also can realize like this: (1). is weight ratio 2: 1~10: 1 Tea Polyphenols and vitamin C with ethanol, distilled water wiring solution-forming; (2). in the tow adhesive, mix solution and send forth on tow, make the effective ingredient in the solution be bonded on the tow equably; (3). tow is processed into inhibition NO free radical cigarette filter.
Because from as carrier, it is big to be adsorbed with the effective constituent specific area, and is evenly distributed with filter tip in the present invention;
The effective ingredient of forming by antioxidant Tea Polyphenols and synergist vitamin C, and weight ratio is set at 2: 1~10: 1, synergistic function is strong;
Make the inhibiting rate of nitric oxide, oxygen radical bring up to 35.2~69% and 32.3~71.9% respectively, to NO
2Inhibiting rate also reach 10~18%;
Effective ingredient so that the ethanol dissolving is made up of antioxidant Tea Polyphenols and synergist vitamin C is uniformly dispersed;
Be based on suppressing and removing NO free radical in the cigarette smoke with filter tip, avoided in the cigarette combustion process, the decomposition of effective ingredient produces the possibility of new harmful substance.
The present invention is described in further detail below in conjunction with embodiment.
Embodiment one
A kind of filter tip of being made of effective ingredient antioxidant Tea Polyphenols and synergist vitamin C that adsorbs, Tea Polyphenols and ascorbic weight ratio are 2: 1~10: 1.With the filter tip is carrier, is weight ratio that 2: 1~10: 1 antioxidant Tea Polyphenols and synergist vitamin C dissolves with ethanol, and adds an amount of distilled water, is mixed with the immersion liquid agent.Common cigarette filter is placed in the immersion liquid agent soaks, soak into filter fiber fully, make effective ingredient in the immersion liquid agent be evenly distributed in the surface of filter fiber until the immersion liquid agent.Roll immersion liquid agent unnecessary in the filter fiber.Low temperature dries, and can make to suppress the NO free radical cigarette filter.This filter tip is connected on the common cigarette, and the inhibiting rate of nitric oxide, oxygen radical brings up to 43~69% and 41.8~71.9% respectively, simultaneously to NO
2Inhibiting rate also reach 10~18%.
Embodiment two
A kind of filter tip of being made of effective ingredient antioxidant Tea Polyphenols and synergist vitamin C that adsorbs, Tea Polyphenols and ascorbic weight ratio are 2: 1~10: 1.With the filter tip is carrier, is weight ratio 2: 1~10: 1 antioxidant Tea Polyphenols and synergist vitamin C with ethanol, distilled water wiring solution-forming.The immersion liquid agent is mixed with an amount of adhesive.In the bonding tow process, above-mentioned solution is incorporated in the tow adhesive directly sends forth on tow, the effective ingredient in the solution is bonded on the tow equably.At last, tow is processed into inhibition NO free radical cigarette filter.This filter tip is connected on the common cigarette, and the inhibiting rate of nitric oxide, oxygen radical brings up to 35.2~47% and 32.3~40.3% respectively, simultaneously to NO
2Inhibiting rate also reach 10~18%.
Embodiment three
A kind of filter tip of being made of effective ingredient antioxidant Tea Polyphenols and synergist vitamin C that adsorbs is by proper proportion and concentration tea blend polyphenol and ascorbic weight ratio.With content is that 90% Tea Polyphenols and 100% vitamin C dissolve with ethanol, and being blended into distilled water, to be mixed with Tea Polyphenols and vitamin C weight percent concentration be 1% immersion liquid agent, and wherein the ascorbic weight ratio of antioxidant Tea Polyphenols and synergist is 4: 1~6: 1.The polypropylene filter tip of buying on the market is placed in the immersion liquid agent, soaks into filter fiber fully, make effective ingredient in the immersion liquid agent be evenly distributed in the surface of filter fiber until the immersion liquid agent.Roll immersion liquid agent unnecessary in the filter fiber, pick-up rate is about 40~50%.Then, low temperature dries again, and the ethanol that volatilizees fully can make and suppress the NO free radical cigarette filter.Every centimeter cigarette filter (filter length) is gone up effective ingredient 0.0015~0.02 gram of load.At last, filter tip is connected on common cigarette back.After testing, the oxygen radical removing rate is 55.4%, and the NO clearance rate is 50.9%.
Embodiment four
A kind of filter tip of being made of effective ingredient antioxidant Tea Polyphenols and synergist vitamin C that adsorbs is by proper proportion and concentration tea blend polyphenol and ascorbic weight ratio.It is 3% immersion liquid agent that antioxidant Tea Polyphenols and synergist vitamin C are modulated into Tea Polyphenols and vitamin C weight percent concentration with ethanol, distilled water, and wherein Tea Polyphenols and ascorbic weight ratio are 6: 1.The polypropylene fiber tow filter rods that adopts Shanghai Tobacco Material Factory to produce is immersed in the immersion liquid agent.Treat to soak into fully, mangle dries, and effective ingredient 0.004~0.007 gram/centimetre of load on the cigarette filter can make and suppress the NO free radical cigarette filter.Filter tip is connected on common cigarette back.After testing, the NO clearance rate is 56.7%, and the oxygen radical removing rate is 60.2%, NO
2Clearance rate is 18.6%.
Embodiment five
A kind of filter tip of being made of effective ingredient antioxidant Tea Polyphenols and synergist vitamin C that adsorbs is by proper proportion and concentration tea blend polyphenol and ascorbic weight ratio.With content is that 90% Tea Polyphenols and 100% vitamin C dissolve with ethanol, and being blended into distilled water, to be mixed with Tea Polyphenols and vitamin C weight percent concentration be 10% solution.Wherein the ascorbic weight ratio of antioxidant Tea Polyphenols and synergist is 5: 1.In the tow adhesive, mix 10% solution, directly send forth on acetate silk, the effective ingredient in the solution is bonded on the tow equably, last, tow is processed into inhibition NO free radical cigarette filter.Effective ingredient 0.004~0.006 gram/centimetre of load on the cigarette filter is connected on this filter tip on the common cigarette, and the inhibiting rate of nitric oxide and oxygen radical is respectively 35.2~47% and 32.3~40.3%.
Claims (8)
1. one kind is suppressed the NO free radical cigarette filter, it is characterized in that with described filter tip be carrier, the effective ingredient that absorption is made up of antioxidant Tea Polyphenols and synergist vitamin C, and Tea Polyphenols and ascorbic weight ratio are 2: 1~10: 1.
2. inhibition NO free radical cigarette filter according to claim 1 is characterized in that described effective ingredient Tea Polyphenols and ascorbic weight ratio are 4: 1~6: 1.
3. inhibition NO free radical cigarette filter according to claim 1 and 2 is characterized in that the effective ingredient that load 0.0015~0.02 restrains on described every centimeter filter length.
4. produce the method that suppresses the NO free radical cigarette filter for one kind, may further comprise the steps:
(1) is weight ratio that 2: 1~10: 1 Tea Polyphenols and vitamin C dissolves with ethanol, adds an amount of distilled water, be mixed with the immersion liquid agent;
(2) cigarette filter is placed in the immersion liquid agent soaks, soak into filter fiber fully, make effective ingredient in the immersion liquid agent be evenly distributed in the surface of filter fiber until the immersion liquid agent;
(3) roll immersion liquid agent unnecessary in the filter fiber;
(4) low temperature dries, and must suppress the NO free radical cigarette filter.
5. production according to claim 4 suppresses the method for NO free radical cigarette filter, it is characterized in that described pick-up rate is 30%~60%.
6. production according to claim 4 suppresses the method for NO free radical cigarette filter, and the effective ingredient weight percent concentration that it is characterized in that described immersion liquid agent is 1%~10%.
7. produce the method that suppresses the NO free radical cigarette filter for one kind, may further comprise the steps:
(1) be weight ratio 2: 1~10: 1 Tea Polyphenols and vitamin C with ethanol, distilled water wiring solution-forming;
(2) in the tow adhesive, mix solution and send forth on tow, make the effective ingredient in the solution be bonded on the tow equably;
(3) tow is processed into inhibition NO free radical cigarette filter.
8. production according to claim 7 suppresses the method for NO free radical cigarette filter, and the effective ingredient weight percent concentration that it is characterized in that described solution is 1%~10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127419 CN1120679C (en) | 2000-11-10 | 2000-11-10 | Cigarette filter tip for inhibiting nitroxide free redical and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127419 CN1120679C (en) | 2000-11-10 | 2000-11-10 | Cigarette filter tip for inhibiting nitroxide free redical and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1290497A CN1290497A (en) | 2001-04-11 |
| CN1120679C true CN1120679C (en) | 2003-09-10 |
Family
ID=4592435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00127419 Expired - Fee Related CN1120679C (en) | 2000-11-10 | 2000-11-10 | Cigarette filter tip for inhibiting nitroxide free redical and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1120679C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090028898A1 (en) * | 2005-03-14 | 2009-01-29 | Xixian Qiu | Instant Additive Solution for the Filter of Cigarette, Its Production Method and Use |
| CN101278759B (en) * | 2007-04-03 | 2011-08-24 | 武汉烟草(集团)有限公司 | Method for easily and fast adding tea polyphenol into cigarette |
| CN102217793A (en) * | 2010-04-15 | 2011-10-19 | 厦门中海钓台生物工程有限公司 | Cigarette sheet and cigarette |
| CN105167191B (en) * | 2015-06-17 | 2019-01-11 | 湖北中烟工业有限责任公司 | Cigarette is with flavone compound essence cigarette pearl and preparation method thereof |
| CN105504521B (en) * | 2016-01-29 | 2018-05-25 | 广西中烟工业有限责任公司 | A kind of preparation method for the electronics cigarette filter tip piece for capturing free radical |
| CN107890136A (en) * | 2017-11-08 | 2018-04-10 | 江苏瑾辉生物科技有限公司 | Application of the Tea Polyphenols in harmful substance volatilization in reducing smoke of tobacco |
| CN110338455A (en) * | 2019-07-10 | 2019-10-18 | 上海烟草集团有限责任公司 | A kind of modified acetate fiber filter material and preparation method |
| CN111570820B (en) * | 2020-04-21 | 2022-01-11 | 武汉理工大学 | Preparation method and application of copper nanocluster |
-
2000
- 2000-11-10 CN CN 00127419 patent/CN1120679C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1290497A (en) | 2001-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1120679C (en) | Cigarette filter tip for inhibiting nitroxide free redical and its preparing method | |
| CN101433371B (en) | Papery filter tip for reducing aldehydes material in smoke of cigarette and preparation method thereof | |
| CN114009826B (en) | Heating cigarette core material and preparation method thereof | |
| CN105111711A (en) | Composition used for decomposition purification of formaldehyde, and preparation method and applications thereof | |
| US7942154B2 (en) | Cigarette filter material and cigarette filter | |
| CN102100405A (en) | Alkaloid composite filter tip addition material capable of reducing hydrocyanic acid in cigarette mainstream smoke | |
| WO2001028370A1 (en) | Element for cigarette smoke and process for producing the same | |
| CN100999884A (en) | Composite modifying formed paper for filter-tip of cigarette and preparation method thereof | |
| CN1073387C (en) | Low free radical and low toxicity cigarette and its prodn. method | |
| CN1141046C (en) | Cigarette filter tip for inhibiting nitrogen-oxygen free radical and its preparing method | |
| CN1166324C (en) | Cigarette filter for reducing harmful components in cigarette smoke and preparation method thereof | |
| CN105146745B (en) | A kind of immobilized catalase cigarette additive and its preparation method and application | |
| CN1543884A (en) | An additive cigarette production technology | |
| CN113115980B (en) | Method for reducing phenol content in waste gas | |
| CN101061889A (en) | Cigarette harmless to human body and the method of producing the same | |
| CN104839886A (en) | Anti-microbial cigarette filter tip and manufacturing method thereof | |
| CN114532590B (en) | Heavy metal substance adsorption type acetate fiber for cigarettes and preparation method thereof | |
| CN101363205A (en) | Forming paper coating for reducing CO, NOx and other harmful substances in cigarette smoke | |
| CN103126073B (en) | Filter stick fiber base material additive capable of reducing tar content in main cigarette stream smoke and application | |
| CN104473328A (en) | Cigarette tar filter agent and manufacturing method and use thereof | |
| CN102002888A (en) | Cellulose paper capable of reducing benzo(a)pyrene content of smoke of cigarettes, preparation method thereof and use thereof | |
| KR100390575B1 (en) | A cigarette filter prepared from kittosan or kittosan fiber | |
| CN111150094B (en) | A superfine fiber functional filter rod tow with the functions of carrying aroma and selectively reducing phenol content in smoke and its preparation and application | |
| CN1301077C (en) | Composite cigarette filter tip capable of effectively reducing cigarette smoke gaseous phase free radical and its preparation method | |
| CN100528987C (en) | Harmness-reduced coke-reduced coating for tobauo cigarette |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |