CN114847518B - Method for enhancing cooling effect of polylactic acid section and filter tip thereof - Google Patents
Method for enhancing cooling effect of polylactic acid section and filter tip thereof Download PDFInfo
- Publication number
- CN114847518B CN114847518B CN202210468671.5A CN202210468671A CN114847518B CN 114847518 B CN114847518 B CN 114847518B CN 202210468671 A CN202210468671 A CN 202210468671A CN 114847518 B CN114847518 B CN 114847518B
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- China
- Prior art keywords
- polylactic acid
- film
- smoke
- cooling effect
- section
- 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.)
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Links
- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 24
- 239000004626 polylactic acid Substances 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 230000000694 effects Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 10
- 229920006381 polylactic acid film Polymers 0.000 claims abstract description 40
- 239000000779 smoke Substances 0.000 claims abstract description 32
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 229920006221 acetate fiber Polymers 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/17—Filters specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
A method for enhancing cooling effect of a polylactic acid segment is characterized by comprising the following steps: uniformly perforating polylactic acid films forming a polylactic acid film filtering section of a cigarette filter tip, ensuring that the bottom edges of the holes are not cut off to form wing films which are connected with a film body and are turned outwards, extending out of two sides of the film body in a staggered manner, enabling smoke gas during suction to surround roundabout and fully contact the polylactic acid films for heat exchange, and achieving the effect of improving the cooling effect of the polylactic acid sections, wherein the included angle between the wing films and the film body is 30-45 degrees; the opening direction of the hole faces to the smoke flow direction or faces away from the smoke flow direction. The invention solves the problem of higher smoke temperature of the prior heating non-combustible cigarettes, ensures that the smoke exchanges heat through full contact with the polylactic acid film, and reduces the temperature by increasing the contact area and the contact time with the smoke as much as possible under the condition of not influencing the smoke circulation, thereby achieving the purposes of improving the cooling effect of the polylactic acid section and balancing the smoke.
Description
Technical Field
The invention relates to a method for cooling a polylactic acid section of a heating non-burning cigarette filter tip; through punching on polylactic acid film, the flue gas detouring when increasing the suction for flue gas and polylactic acid film fully contact, let the faster convection current of heat to cigarette surface, thereby reach the purpose that improves polylactic acid section cooling effect and can balance the flue gas.
Background
In recent years, the traditional tobacco market activity declines, new tobacco rapidly develops, heated nonflammable cigarettes rapidly develop in the international market, and research on the heated cigarettes has become a hot spot problem of tobacco technology. Wherein the heated non-combustible cigarette filters are substantially different from conventional cigarettes. As shown in fig. 1, the structure of the filter mainly comprises three sections of a hollow acetate fiber pipe, a polylactic acid film filtering section and an acetate fiber section. The hollow section is used as a generator for heating the aerosol of the tobacco product, and various chemical substances released by the heated tobacco core section are gasified, condensed and uniformly mixed in the hollow section to form the aerosol for consumers to inhale; the polylactic acid section is formed by rolling a polylactic acid film into a bundle, and the main function is to reduce the temperature of aerosol; the last acetate fiber section can balance the flue gas to prevent the flue gas from excessively concentrating, plays the filter effect simultaneously and adjusts the size of inhaling and hinder.
At present, the polylactic acid section of the heated non-combustible cigarette mainly utilizes a special forming device to uniformly fold and emboss a polylactic acid film, and packs after being folded into a bundle. The smoke temperature is reduced by utilizing the good endothermic effect of the polylactic acid film.
At present, the problem of higher smoke temperature still exists in the partially heated non-combustible cigarettes, and smoke is subjected to heat exchange mainly through full contact with the polylactic acid film, so that the polylactic acid film needs to increase the contact area and the contact time with the smoke as much as possible under the condition of not affecting smoke circulation, and the temperature is reduced.
Disclosure of Invention
The invention aims to provide a method for enhancing the cooling effect of a polylactic acid section and a filter tip thereof based on the prior art, which can effectively reduce the temperature of smoke during suction.
The aim of the invention is realized by the following technical scheme:
A method for enhancing cooling effect of polylactic acid section is to uniformly punch holes on polylactic acid film forming filter section of polylactic acid film of cigarette filter tip, and ensure that bottom edge of hole is not cut off to form wing film connected with film body and turned outwards, and the wing film is extended out of two sides of film body in staggered way, so that smoke gas in smoking can surround roundabout and fully contact with polylactic acid film to exchange heat, thus improving cooling effect of polylactic acid section.
The included angle between the fin film and the film body is 30-45 degrees; the height of the wing film higher than the film body is less than or equal to the distance between adjacent films after the polylactic acid film is rolled into a bundle
The opening direction of the hole faces to the smoke flow direction or faces away from the smoke flow direction; the holes can be arranged according to a certain arrangement rule, or symmetrically or alternatively, or randomly; the shape of the hole can be triangle hole, square, semicircle, semi-ellipse, trapezoid, only the protruding part is ensured to extend outwards to form a bulge and keep.
The invention relates to a non-combustible cigarette filter tip with a rapid cooling function, which comprises a polylactic acid film filter section, wherein: the polylactic acid film filtering section is formed by rolling polylactic acid films perforated by the method into bundles.
The mechanism of the invention is as follows: due to the existence of the holes and the wing films on the polylactic acid film body, when the smoke flows through the polylactic acid section, part of the smoke can continuously pass through the triangular holes under the action of pressure, so that the streamline of the airflow is complex and irregular, heat is enabled to be more quickly convected to the surface of the cigarette, heat exchange is carried out with the environment, and the aim of accelerating cooling is achieved.
Compared with the prior art, the invention has the greatest advantages of overcoming the problem of higher smoke temperature of the existing heating non-burning cigarettes, enabling the smoke to exchange heat through full contact with the polylactic acid film, and reducing the temperature by increasing the contact area and the contact time with the smoke as much as possible under the condition of not affecting the smoke circulation, thereby achieving the purposes of improving the cooling effect of the polylactic acid section and balancing the smoke.
Drawings
Fig. 1: an electric heating cigarette structure schematic diagram;
fig. 2: schematic drawing when polylactic acid film is cut into triangular holes;
fig. 3: FIG. 2 is a top view;
Fig. 4: the smoke surrounds the roundabout schematic diagram when the smoke passes through the perforated polylactic acid film after being folded into a bundle;
fig. 5: schematic drawing when polylactic acid film is cut into semicircular holes;
Fig. 6: schematic diagram of polylactic acid film when cutting into square holes;
fig. 7: schematic axial section of polylactic acid section (triangular hole is taken as an example);
FIG. 8 is a graph showing comparison of temperature measurement results of the polylactic acid sections before and after improvement;
fig. 9 is a comparison of temperature measurements of the acetate fiber segments before and after modification.
Detailed Description
The invention is further described below with reference to the accompanying drawings (examples):
As shown in fig. 2-7: a method for enhancing cooling effect of polylactic acid section is to uniformly punch holes on polylactic acid film forming filter section of polylactic acid film of cigarette filter tip, and ensure that bottom edge of hole is not cut off to form wing film connected with film body and turned outwards, and the wing film is extended out of two sides of film body in staggered way, so that smoke gas in smoking can surround roundabout and fully contact with polylactic acid film to exchange heat, thus improving cooling effect of polylactic acid section.
The included angle between the fin film and the film body is 30-45 degrees; the height of the wing film higher than the film body is smaller than or equal to the distance between adjacent films after the polylactic acid film is rolled into a bundle.
The opening direction of the hole faces to the smoke flow direction or faces away from the smoke flow direction; the holes can be arranged according to a certain arrangement rule, or symmetrically or alternatively, or randomly; the shape of the holes may be triangular holes (shown in fig. 2 and 3), square holes (shown in fig. 6), semicircular holes (shown in fig. 5), or semi-elliptical holes, trapezoid holes, etc., and only the protruding parts are required to extend outwards to form protrusions and be kept.
More specifically, the polylactic acid film is perforated before being rolled into a bundle, and the bottom edges of the holes are ensured not to be cut off, and the adjacent fin films respectively present 45 degrees or-45 degrees with the axial direction and are kept. The height of the film is not more than the distance between adjacent films after being rolled into a bundle, so that the film is prevented from being extruded and deformed after being rolled. The film after rolling is similar to that shown in fig. 7.
The polylactic acid film is perforated by the method, and then the perforated polylactic acid film is rolled into a bundle, so that the polylactic acid film filter section can be manufactured, and the filter tip manufactured by the filter section is the non-combustible cigarette filter tip with the rapid cooling function.
The thermocouple is used for detecting the temperature of each section of the filter tip, as shown in fig. 8 and 9, the cooling effect before and after improvement is obvious; the average temperature of the polylactic acid segment is reduced by 5 ℃. The average temperature of the acetate fiber segment was reduced by 3 ℃.
Claims (5)
1. A method for enhancing cooling effect of a polylactic acid segment is characterized by comprising the following steps: uniformly perforating polylactic acid films forming a polylactic acid film filtering section of the cigarette filter tip, ensuring that the bottom edges of the holes are not cut off to form wing films which are connected with a film body and are turned outwards, extending out of two sides of the film body in a staggered manner, enabling smoke gas during suction to surround roundabout and fully contact with the polylactic acid film for heat exchange, and achieving the effect of improving the cooling effect of the polylactic acid section; the included angle between the wing film and the film body is 30-45 degrees, and the height of the wing film higher than the film body is smaller than the distance between adjacent films after the polylactic acid film is rolled into a bundle.
2. The method for enhancing cooling effect of polylactic acid segment according to claim 1, wherein the method comprises the following steps: the opening direction of the hole faces to the smoke flow direction or faces away from the smoke flow direction.
3. The method for enhancing cooling effect of polylactic acid segment according to claim 1 or 2, characterized in that: the holes are arranged symmetrically or in a staggered way.
4. The method for enhancing cooling effect of polylactic acid segment according to claim 1 or 2, characterized in that: the shape of the hole is triangle, square, semicircle, semi-ellipse or trapezoid, and only the protruding part is ensured to extend outwards to form a bulge and be kept.
5. The utility model provides a non-burning cigarette filter with quick cooling function, includes polylactic acid film filter section, its characterized in that: a polylactic acid film filtration section is formed from a rolled bundle of perforated polylactic acid film according to any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210468671.5A CN114847518B (en) | 2022-04-30 | 2022-04-30 | Method for enhancing cooling effect of polylactic acid section and filter tip thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210468671.5A CN114847518B (en) | 2022-04-30 | 2022-04-30 | Method for enhancing cooling effect of polylactic acid section and filter tip thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114847518A CN114847518A (en) | 2022-08-05 |
| CN114847518B true CN114847518B (en) | 2024-06-18 |
Family
ID=82635156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210468671.5A Active CN114847518B (en) | 2022-04-30 | 2022-04-30 | Method for enhancing cooling effect of polylactic acid section and filter tip thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114847518B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207544346U (en) * | 2017-12-06 | 2018-06-29 | 湖北中烟工业有限责任公司 | A kind of electrical heating low temperature cigarette flue gas cool-down mouth stick |
| CN110623313A (en) * | 2019-11-04 | 2019-12-31 | 四川三联新材料有限公司 | Heating cigarette smoking set gas circuit structure and heating cigarette smoking set |
| WO2022193746A1 (en) * | 2021-03-19 | 2022-09-22 | 深圳市智叶生物科技有限公司 | Filter and atomization device |
| CN115644496A (en) * | 2022-10-26 | 2023-01-31 | 浙江大学 | Cooling section structure for heating cigarette and heating cigarette |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105768209A (en) * | 2016-04-20 | 2016-07-20 | 湖北中烟工业有限责任公司 | Novel cigarette capable of lowering smoke temperature and improving smoking quality |
| CN107259638A (en) * | 2017-06-23 | 2017-10-20 | 湖北中烟工业有限责任公司 | It is a kind of that there is the low temperature cigarette for reducing flue-gas temperature and flavouring function |
| US20210267269A1 (en) * | 2018-06-26 | 2021-09-02 | China Tobacco Hunan Industrial Co., Ltd. | Cooling filter rod and application thereof |
| CN109763185A (en) * | 2018-12-14 | 2019-05-17 | 王惟正 | One kind is for cigarette cooling filter hollow acid fiber by polylactic of section and preparation method thereof |
| CN111920092A (en) * | 2019-05-13 | 2020-11-13 | 湖北中烟工业有限责任公司 | Filter element for a tobacco product and tobacco product |
-
2022
- 2022-04-30 CN CN202210468671.5A patent/CN114847518B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207544346U (en) * | 2017-12-06 | 2018-06-29 | 湖北中烟工业有限责任公司 | A kind of electrical heating low temperature cigarette flue gas cool-down mouth stick |
| CN110623313A (en) * | 2019-11-04 | 2019-12-31 | 四川三联新材料有限公司 | Heating cigarette smoking set gas circuit structure and heating cigarette smoking set |
| WO2022193746A1 (en) * | 2021-03-19 | 2022-09-22 | 深圳市智叶生物科技有限公司 | Filter and atomization device |
| CN115644496A (en) * | 2022-10-26 | 2023-01-31 | 浙江大学 | Cooling section structure for heating cigarette and heating cigarette |
Non-Patent Citations (1)
| Title |
|---|
| 傅源锋."加热不燃烧烟支研发".《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》.2022,(第5期),第B024-565页. * |
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| Publication number | Publication date |
|---|---|
| CN114847518A (en) | 2022-08-05 |
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