CN103233295B - Method for preparing threadlike carbon heat source material for cigarettes by using calcium salt - Google Patents
Method for preparing threadlike carbon heat source material for cigarettes by using calcium salt Download PDFInfo
- Publication number
- CN103233295B CN103233295B CN201310145445.4A CN201310145445A CN103233295B CN 103233295 B CN103233295 B CN 103233295B CN 201310145445 A CN201310145445 A CN 201310145445A CN 103233295 B CN103233295 B CN 103233295B
- Authority
- CN
- China
- Prior art keywords
- alginate
- heat source
- thread
- source material
- cigarette
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 title claims abstract description 45
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 20
- 159000000007 calcium salts Chemical class 0.000 title claims abstract description 16
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 235000010408 potassium alginate Nutrition 0.000 claims abstract description 26
- 239000000737 potassium alginate Substances 0.000 claims abstract description 26
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 claims abstract description 26
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 26
- 239000000661 sodium alginate Substances 0.000 claims abstract description 26
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 26
- 239000000728 ammonium alginate Substances 0.000 claims abstract description 25
- 235000010407 ammonium alginate Nutrition 0.000 claims abstract description 25
- KPGABFJTMYCRHJ-YZOKENDUSA-N ammonium alginate Chemical compound [NH4+].[NH4+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O KPGABFJTMYCRHJ-YZOKENDUSA-N 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 235000015110 jellies Nutrition 0.000 claims abstract description 19
- 239000008274 jelly Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 239000011734 sodium Substances 0.000 claims description 10
- 241000208125 Nicotiana Species 0.000 claims description 8
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001424 calcium ion Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000009938 salting Methods 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 229960001126 alginic acid Drugs 0.000 description 2
- 239000000783 alginic acid Substances 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 150000004781 alginic acids Chemical class 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The invention discloses a method for preparing a threadlike carbon heat source material for cigarettes by using calcium salt, which comprises the following steps: mixing sodium alginate or ammonium alginate or potassium alginate with carbon powder and water, and stirring into a jelly, wherein the mass ratio of the sodium alginate or ammonium alginate or potassium alginate to the carbon powder is 1:(5-45); extruding the jelly into a thread, and sufficiently contacting the thread with a calcium salt solution to obtain a condensate; and rinsing the condensate, and drying until the water content reaches 10-20%, thereby obtaining the threadlike carbon heat source material for cigarettes. The invention lowers the hazard caused by glass fibers sucked into the human body, enhances the combustibility of the carbon heat source, and has the characteristics of simple method, short production cycle, low cost and the like.
Description
Technical field
The invention belongs to cigarette field, be specifically related to a kind of method of thread carbon heat source material for cigarette that utilizes calcium salt to prepare to use on low temperature cigarette.
Background technology
There are some researches show, nicotine and most tobacco flavor composition at a lower temperature (300 ~ 500 ℃) just can be transferred in flue gas.If cigarette temperature is reduced to 600 ℃ following (approximately 700 ℃ of tobacco burning-points), the multiple harmful components of flue gas can significantly reduce, and the impact that flavor component is subject to is relatively little.Therefore, a kind ofly use the cigarette that carbon heat source carries out destructive distillation tobacco component to be invented, wherein, what the Eclipse cigarette carbon heat source of R.J. Rainolds Tobacco CO. adopted is the mode of glass fibre parcel carbon-point, yet, carbon-point is that extruding forms, inner closely knit, for forming thermal current, need the ventilative glass fibre of outer parcel, there is research to think, this particle enables to be held back by filter tip material, but in the processes such as packing, be adsorbed onto on filter tip unavoidably, thereby cause sucking, health risk, simultaneously, the also more very thin carbonaceous filamentary material difficult point combustion of closely knit carbon-point.
Summary of the invention
The object of the invention is for above-mentioned deficiency, the preparation method of a kind of new cigarette with thread carbon heat source material is provided, carbon heat source prepared by employing the method is owing to being deposited in together when making carbon heat source, itself is loose, there is gap, thermal current can pass through smoothly, does not therefore need to adopt the glass fibre being detrimental to health to wrap up.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of calcium salt that utilizes is prepared the method for thread carbon heat source material for cigarette, comprise the following steps: sodium alginate or ammonium alginate or potassium alginate are mixed with carbon dust and water, stir furnishing jelly, wherein the mass ratio of sodium alginate or ammonium alginate or potassium alginate and carbon dust is 1:5-45, then described jelly is squeezed into silk thread, described silk thread is fully contacted with the water-soluble calcium salting liquid that can produce calcium ion, obtain solidfied material; Described solidfied material, through rinsing, dry, makes moisture reach 10-20%, obtains thread carbon heat source material for cigarette.
Preferably, described calcium salt soln is CaCl
2solution or Ca (NO
3)
2solution.
Preferably, the granularity of described carbon dust is 100 orders.
Preferably, described silk thread diameter is 1-3mm.
Preferably, in the step that sodium alginate or ammonium alginate or potassium alginate mix with carbon dust and water, also comprise and add graphite powder, the mass ratio of described sodium alginate or ammonium alginate or potassium alginate and carbon dust and graphite powder is 1:5-45:0.4-3.6.Adding graphite powder is the heat transfer effect that is firing rear carbon in order to improve, and reduces ignition temperature, reduces CO and generates.
Preferably, in the step that sodium alginate or ammonium alginate or potassium alginate mix with carbon dust and water, also comprise and add CaCO
3, described sodium alginate or ammonium alginate or potassium alginate and carbon dust and CaCO
3mass ratio be 1:5-45:0.1-2.Add CaCO
3to produce in order to contribute to moulding and to reduce CO.
Preferably, in the step that sodium alginate or ammonium alginate or potassium alginate mix with carbon dust and water, also comprise and add Na
2cO
3the aqueous solution, described sodium alginate or ammonium alginate or potassium alginate and carbon dust and Na
2cO
3the mass ratio of solid is 1:5-45:0.05-1.Add Na
2cO
3in order to improve the combustibility of carbon dust after moulding.
Further preferably, in the step that sodium alginate or ammonium alginate or potassium alginate mix with carbon dust and water, also comprise and add graphite powder, CaCO
3and Na
2cO
3the aqueous solution, described sodium alginate or ammonium alginate or potassium alginate and carbon dust and graphite powder and CaCO
3with Na
2cO
3the mass ratio of solid is 1:5-45:0.4-3.6:0.1-2:0.05-1.
In order to improve igniting and sucking quality, in the step of mixing with carbon dust and water at sodium alginate, ammonium alginate or potassium alginate, can also add tobacco powder or tobacco extract or essence.
In the step that sodium alginate or ammonium alginate or potassium alginate mix with carbon dust and water, best sodium alginate or the mass ratio of ammonium alginate or potassium alginate and carbon dust and water are 1:20:100, now the modest viscosity of sodium alginate or ammonium alginate or the potassium alginate aqueous solution, can stir furnishing jelly with carbon dust at an easy rate.
The invention has the beneficial effects as follows:
1) while preparing, jelly is when contacting with acid solution or calcium salt soln, sodium alginate in jelly, ammonium alginate or potassium alginate and acid react, generate alginic acid, this compound is water insoluble, thereby form, wrapped up carbon dust, the solidfied material of the raw materials such as graphite powder, use this material, itself there is natural space in the latter made carbon heat source of chopping, flexible, be convenient to cigarette processing, and traditional carbon-point is extruding formation, inner closely knit, for forming the needs of ventilative and cigarette flexibility, skin will wrap up ventilative glass fibre, therefore the carbon heat source in the present invention no longer needs to wrap up with glass fibre, thereby the harm that has reduced glass fibre suction human body and caused.
2) because alginic acid carries out when there is chemical reaction with parcel with carbon dust, graphite powder etc. mixing of raw material, and be swift in response, after film forming, no longer there is viscosity, therefore the applicable industrial mass of carbon heat source material is processed continuously, and makes the thread rear carbon-point forming than extruding and more easily light.
3) the inventive method is simple, with short production cycle, and cost is low.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1
A preparation method for thread carbon heat source material for cigarette, its step is as follows:
1) 1g sodium alginate is mixed with 20g carbon dust (100 order) and 100g water, stir furnishing jelly;
2) described jelly is squeezed into the silk thread that diameter is 1mm, by described silk thread and saturated CaCl
2solution fully contacts (time that silk thread contacts with calcium solution is at least 1 minute), obtains solidfied material;
3) by described solidfied material process rinsing, dry, make moisture reach 10%, obtain thread carbon heat source material for cigarette.
Embodiment 2
A preparation method for thread carbon heat source material for cigarette, its step is as follows:
1) 1g ammonium alginate is mixed with 5g carbon dust (100 order), 0.4g graphite powder and 60g water, stir furnishing jelly;
2) described jelly is squeezed into the silk thread that diameter is 3mm, by described silk thread and 10%CaCl
2solution fully contacts, and obtains solidfied material;
3) by described solidfied material process rinsing, dry, make moisture reach 20%, obtain thread carbon heat source material for cigarette.
Embodiment 3
A preparation method for thread carbon heat source material for cigarette, its step is as follows:
1) by 1g sodium alginate and 45g carbon dust (100 order), 0.1g CaCO
3mix with 100g water, stir furnishing jelly;
2) described jelly is squeezed into the thin slice that diameter is 2mm, by described silk thread and 1%CaCl
2solution fully contacts, and obtains solidfied material;
3) by described solidfied material process rinsing, dry, make moisture reach 15%, obtain thread carbon heat source material for cigarette.
Embodiment 4
A preparation method for thread carbon heat source material for cigarette, its step is as follows:
1) by 1g potassium alginate, 30g carbon dust (100 order), Na
2cO
3solution is (containing Na
2cO
30.05g) mix with suitable quantity of water, stir furnishing jelly;
2) described jelly is squeezed into the silk thread that diameter is 2.5mm, by described silk thread and 0.1%CaCl
2solution fully contacts, and obtains solidfied material;
3) by described solidfied material process rinsing, dry, make moisture reach 18%, obtain thread carbon heat source material for cigarette.
Embodiment 5
A preparation method for thread carbon heat source material for cigarette, its step is as follows:
1) by 1g potassium alginate and 10g carbon dust (100 order), 3.6g graphite powder, 2g CaCO
3, 1g Na
2cO
3, 5g tobacco powder and suitable quantity of water mix, and stirs furnishing jelly;
2) described jelly is squeezed into the silk thread that diameter is 1.5mm, by described silk thread and 10%Ca (NO
3)
2solution fully contacts, and obtains solidfied material;
3) by described solidfied material process rinsing, dry, make moisture reach 10%, obtain thread carbon heat source material for cigarette.
Claims (7)
1. one kind is utilized calcium salt to prepare the method for thread carbon heat source material for cigarette, it is characterized in that comprising the following steps: sodium alginate or ammonium alginate or potassium alginate are mixed with carbon dust and water, stir furnishing jelly, wherein the mass ratio of sodium alginate or ammonium alginate or potassium alginate and carbon dust is 1:5-45, then described jelly is squeezed into silk thread, described silk thread is fully contacted with the water-soluble calcium salting liquid that can produce calcium ion, obtain solidfied material; Described solidfied material, through rinsing, dry, makes moisture reach 10-20%, obtains thread carbon heat source material for cigarette.
2. the calcium salt that utilizes according to claim 1 is prepared the method for thread carbon heat source material for cigarette, it is characterized in that: described calcium salt soln is CaCl
2solution or Ca (NO
3)
2solution.
3. the calcium salt that utilizes according to claim 1 is prepared the method for thread carbon heat source material for cigarette, it is characterized in that: the granularity of described carbon dust is 100 orders.
4. the calcium salt that utilizes according to claim 1 is prepared the method for thread carbon heat source material for cigarette, it is characterized in that: described silk thread diameter is 1-3mm.
5. according to the calcium salt that utilizes described in any one in claim 1-4, prepare the method for thread carbon heat source material for cigarette, it is characterized in that: in the step that sodium alginate or ammonium alginate or potassium alginate mix with carbon dust and water, also comprise and add CaCO
3, described sodium alginate or ammonium alginate or potassium alginate and carbon dust and CaCO
3mass ratio be 1:5-45:0.1-2.
6. according to the calcium salt that utilizes described in any one in claim 1-4, prepare the preparation method of thread carbon heat source material for cigarette, it is characterized in that: in the step that sodium alginate or ammonium alginate or potassium alginate mix with carbon dust and water, also comprise and add Na
2cO
3the aqueous solution, described sodium alginate or ammonium alginate or potassium alginate and carbon dust and Na
2cO
3the mass ratio of solid is 1:5-45:0.05-1.
7. according to the calcium salt that utilizes described in any one in claim 1-4, prepare the method for thread carbon heat source material for cigarette, it is characterized in that: in the step of mixing with carbon dust and water at sodium alginate, ammonium alginate or potassium alginate, also comprise and add tobacco powder or tobacco extract or essence.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310145445.4A CN103233295B (en) | 2013-04-24 | 2013-04-24 | Method for preparing threadlike carbon heat source material for cigarettes by using calcium salt |
PCT/CN2013/088343 WO2014173130A1 (en) | 2013-04-24 | 2013-12-02 | Method for preparing carbonaceous heat source materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310145445.4A CN103233295B (en) | 2013-04-24 | 2013-04-24 | Method for preparing threadlike carbon heat source material for cigarettes by using calcium salt |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103233295A CN103233295A (en) | 2013-08-07 |
CN103233295B true CN103233295B (en) | 2014-11-26 |
Family
ID=48881359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310145445.4A Active CN103233295B (en) | 2013-04-24 | 2013-04-24 | Method for preparing threadlike carbon heat source material for cigarettes by using calcium salt |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103233295B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014173130A1 (en) * | 2013-04-24 | 2014-10-30 | 湖北中烟工业有限责任公司 | Method for preparing carbonaceous heat source materials |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0117355B1 (en) * | 1982-12-16 | 1991-03-20 | Philip Morris Products Inc. | Process for making a carbon heat source and smoking article including the heat source and a flavor generator |
EP0467658A3 (en) * | 1990-07-20 | 1992-03-11 | Philip Morris Products Inc. | Catalytic conversion of carbon monoxide from carbonaceous heat sources |
CN1093556A (en) * | 1993-04-07 | 1994-10-19 | R·J·雷诺兹烟草公司 | Fuel element composition |
CN1100453A (en) * | 1993-06-02 | 1995-03-22 | 菲利普莫里斯生产公司 | Imrpoved method for making a carbonaceous heat source containing metal oxide |
CN101420876A (en) * | 2006-04-11 | 2009-04-29 | 日本烟草产业株式会社 | Carbonaceous heat source composition for non-combustible smoking article and non-combustible smoking article |
-
2013
- 2013-04-24 CN CN201310145445.4A patent/CN103233295B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0117355B1 (en) * | 1982-12-16 | 1991-03-20 | Philip Morris Products Inc. | Process for making a carbon heat source and smoking article including the heat source and a flavor generator |
EP0467658A3 (en) * | 1990-07-20 | 1992-03-11 | Philip Morris Products Inc. | Catalytic conversion of carbon monoxide from carbonaceous heat sources |
CN1093556A (en) * | 1993-04-07 | 1994-10-19 | R·J·雷诺兹烟草公司 | Fuel element composition |
CN1100453A (en) * | 1993-06-02 | 1995-03-22 | 菲利普莫里斯生产公司 | Imrpoved method for making a carbonaceous heat source containing metal oxide |
CN101420876A (en) * | 2006-04-11 | 2009-04-29 | 日本烟草产业株式会社 | Carbonaceous heat source composition for non-combustible smoking article and non-combustible smoking article |
Also Published As
Publication number | Publication date |
---|---|
CN103233295A (en) | 2013-08-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103263077B (en) | Method for preparing cigarette flaky carbonaceous heat source materials by calcium salt | |
TW235906B (en) | ||
CN102108136A (en) | Tobacco additive dropping pill wrapping material, dropping pill wrapped thereby and application of dropping pill | |
CN105768191A (en) | Reconstituted tobacco and heated non-combustible cigarette prepared by using same | |
CN105595417A (en) | Linear composite gel fragrance controlled-release filter stick and preparation method and application thereof | |
CN101926506A (en) | Application of neophytadiene being taken as cigarette additive | |
CN102578711A (en) | Sodium alginate microparticles for cigarette filter and filtered cigarette | |
CN103865645A (en) | Preparation method of fruit concentrate Maillard reaction product, and application of product in tobacco perfuming | |
CN87108020A (en) | Smoking product by the aerosol forming substrate making that improves | |
CN103948163A (en) | Method for reducing content of reducing sugar in reconstituted tobacco | |
CN100588336C (en) | Cocoon fibre cigarette filter tip and producing method | |
CN103564276B (en) | Grilled fish bone swelling agent, and preparation method and application of swelling agent | |
RU2019140275A (en) | INCAPSULATED INGREDIENTS FOR ELECTRONIC STEAMING DEVICES AND METHOD OF THEIR MANUFACTURING | |
CN107373760A (en) | A kind of disposable cigarette bullet | |
CN103233295B (en) | Method for preparing threadlike carbon heat source material for cigarettes by using calcium salt | |
CN103205825B (en) | Method for preparing cigarette filamentary carbon heat source material by ethanol | |
CN104824827B (en) | A kind of Lignum Aquilariae Resinatum aromatic style dry method preparation of sections method | |
CN103233294B (en) | Method for preparing threadlike carbon heat source material for cigarettes by using acid | |
CN103222685B (en) | Method for using ethanol to prepare sheet carbonaceous heat sources for cigarettes | |
CN103230097B (en) | Method for utilizing acids to prepare piece-shaped carbonaceous heat source material for cigarettes | |
CN110679984A (en) | Preparation method of special slice for heating cigarettes | |
CN110946320A (en) | Damp-proof heating non-combustion reconstituted tobacco, preparation method and application | |
CN204377899U (en) | A kind of binary compound filter candle containing mixing natural plant extracts compound stalk particle | |
CN101914869A (en) | Porous-starch-containing water-based paint for cigarette wrapping paper | |
CN109602068A (en) | Plantflakesare, cigarette substitute and preparation method thereof and cigarette |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |