CN113057369A - Paper filter stick and preparation method thereof - Google Patents
Paper filter stick and preparation method thereof Download PDFInfo
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- CN113057369A CN113057369A CN202110468458.XA CN202110468458A CN113057369A CN 113057369 A CN113057369 A CN 113057369A CN 202110468458 A CN202110468458 A CN 202110468458A CN 113057369 A CN113057369 A CN 113057369A
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- paper filter
- filter stick
- extract
- tobacco
- mixed solution
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000284 extract Substances 0.000 claims abstract description 47
- 241000208125 Nicotiana Species 0.000 claims abstract description 41
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 41
- 239000011259 mixed solution Substances 0.000 claims abstract description 27
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 15
- 239000003906 humectant Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000004049 embossing Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 11
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000006286 aqueous extract Substances 0.000 claims description 6
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 5
- 235000021433 fructose syrup Nutrition 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000000600 sorbitol Substances 0.000 claims description 5
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 4
- 239000008103 glucose Substances 0.000 claims description 4
- 239000006188 syrup Substances 0.000 claims description 4
- 235000020357 syrup Nutrition 0.000 claims description 4
- 235000005979 Citrus limon Nutrition 0.000 claims description 3
- 244000131522 Citrus pyriformis Species 0.000 claims description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 3
- 235000016623 Fragaria vesca Nutrition 0.000 claims description 3
- 240000009088 Fragaria x ananassa Species 0.000 claims description 3
- 235000011363 Fragaria x ananassa Nutrition 0.000 claims description 3
- 235000007270 Gaultheria hispida Nutrition 0.000 claims description 3
- 235000009134 Myrica cerifera Nutrition 0.000 claims description 3
- 244000269152 Myrica pensylvanica Species 0.000 claims description 3
- 235000012851 Myrica pensylvanica Nutrition 0.000 claims description 3
- 235000009754 Vitis X bourquina Nutrition 0.000 claims description 3
- 235000012333 Vitis X labruscana Nutrition 0.000 claims description 3
- 240000006365 Vitis vinifera Species 0.000 claims description 3
- 235000014787 Vitis vinifera Nutrition 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 12
- 230000000391 smoking effect Effects 0.000 abstract description 6
- 230000007794 irritation Effects 0.000 abstract description 5
- 239000003205 fragrance Substances 0.000 abstract description 4
- 210000000214 mouth Anatomy 0.000 abstract description 2
- 150000007524 organic acids Chemical class 0.000 abstract description 2
- 235000005985 organic acids Nutrition 0.000 abstract description 2
- 235000019504 cigarettes Nutrition 0.000 description 16
- 238000001914 filtration Methods 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000706 filtrate Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229940055329 tobacco leaf extract Drugs 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 3
- 230000001953 sensory effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 206010013911 Dysgeusia Diseases 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229940038487 grape extract Drugs 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000012360 testing method Methods 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/025—Final operations, i.e. after the filter rod forming process
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/025—Final operations, i.e. after the filter rod forming process
- A24D3/0254—Cutting means
-
- 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
- A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
-
- 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
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
Abstract
The invention discloses a paper filter stick and a preparation method thereof, wherein the preparation method of the paper filter stick comprises the following steps: mixing the tobacco extract, the fruit extract and the humectant to obtain a mixed solution; applying the mixed solution on a paper filter material in a coating or spraying manner; and drying, embossing and slitting the paper filter material to obtain the paper filter stick. The preparation method of the paper filter stick is low in implementation cost, simple to operate and easy to implement. The tobacco extract, the humectant and the fruit extract are sprayed or coated on the paper filter stick, so that the smoking taste of the paper filter stick can be obviously improved, and the comfort of the oral cavity and the throat is improved. The fruit extract contains more organic acids, can neutralize smoke, enrich tobacco fragrance, reduce smoke irritation, reduce smoke dryness by humectant, increase tobacco fragrance, and improve smoking satisfaction by tobacco extract.
Description
Technical Field
The invention relates to the field of cigarette filter materials, in particular to a paper filter stick and a preparation method thereof.
Background
In recent years, with the attention of people on low-harm cigarettes and health and environmental protection, a series of researches on tar reduction and harm reduction are carried out in the tobacco industry. The release amount of harmful substances in smoke can be reduced by the filter stick for cigarettes through interception, adsorption and other modes, and the filter stick is an important way for reducing tar and harm of cigarettes.
At present, the cigarette filter stick mainly takes an acetic acid filter stick as a main component. The acetic acid filter stick is non-toxic and tasteless, has better filtering effect on tar and harmful substances in smoke, and can change the filtering efficiency of the filter stick by adjusting the forming parameters of the filter stick, thereby meeting the corresponding design requirements. However, the acetic acid filter stick is difficult to degrade and has great long-term harm to the environment. In addition, the polypropylene filter stick is also a common filter stick, but the polypropylene filter stick has poor filtering capability on tar and phenolic substances, so that the smoke is hot and spicy, and is only used for certain low-grade cigarettes at present. Paper filter rods are also a common type of cigarette filter rods, and are usually made by using wood pulp cellulose to make paper, and then through embossing, slitting and other processes. The paper filter stick has strong filtering capacity to smoke and better degradation performance, but the cigarette with the paper filter stick is large in smoke drying sense and irritation, so that the wide application of the cigarette is limited.
Therefore, how to provide a paper filter stick capable of effectively improving the odor absorption of the paper filter stick becomes a technical problem which needs to be solved urgently in the field.
Disclosure of Invention
The invention aims to provide a new technical scheme of a paper filter stick capable of effectively improving the odor absorption of the paper filter stick.
According to a first aspect of the invention, a method for preparing a paper filter stick is provided.
The preparation method of the paper filter stick comprises the following steps:
step (1): mixing the tobacco extract, the fruit extract and the humectant to obtain a mixed solution;
step (2): applying the mixed solution on a paper filter material in a coating or spraying manner;
and (3): and drying, embossing and slitting the paper filter material to obtain the paper filter stick.
Optionally, the mixed solution in the step (1) is an aqueous solution or an alcohol solution.
Optionally, the concentration of the mixed solution in the step (1) is 5g/cm3-10g/cm3。
Optionally, the tobacco extract in the step (1) is an aqueous extract or an alcohol extract of at least one of tobacco leaves, tobacco powder, tobacco stems and tobacco stems.
Optionally, the fruit extract in step (1) is an aqueous extract or an alcohol extract of at least one of apple, lemon, orange, grape, waxberry and strawberry.
Optionally, the humectant in the step (1) is at least one of glycerol, propylene glycol, sorbitol, high fructose syrup and glucose syrup.
Optionally, the mass ratio of the tobacco extract, the fruit extract and the humectant in the step (1) is (20-30): (60-80): (5-10).
Optionally, the application amount of the mixed solution in the step (2) is 1.5g/m2-5g/m2。
According to a second aspect of the invention, a paper filter rod is provided.
The paper filter stick is prepared by the preparation method of the paper filter stick disclosed by the disclosure.
The preparation method of the paper filter stick is low in implementation cost, simple to operate and easy to implement. The tobacco extract, the humectant and the fruit extract are sprayed or coated on the paper filter stick, so that the smoking taste of the paper filter stick can be obviously improved, and the comfort of the oral cavity and the throat is improved. The fruit extract contains more organic acids, can neutralize smoke, enrich tobacco fragrance, reduce smoke irritation, reduce smoke dryness by humectant, increase tobacco fragrance, and improve smoking satisfaction by tobacco extract.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The preparation method of the paper filter stick provided by the disclosure comprises the following steps:
step (1): mixing the tobacco extract, the fruit extract and the humectant to obtain a mixed solution.
In order to enhance the taste-absorbing improvement effect, the mixed solution in the step (1) is an aqueous solution or an alcohol solution.
In order to enhance the odor absorption-improving effect, the concentration of the mixed solution in the step (1) is 5g/cm3-10g/cm3。
In order to improve the smoking taste improvement effect, the tobacco extract in the step (1) is an aqueous extract or an alcohol extract of at least one of tobacco leaves, tobacco powder, tobacco stems and tobacco stems.
In order to improve the taste-absorbing improvement effect, the fruit extract in the step (1) is an aqueous extract or an alcohol extract of at least one of apple, lemon, orange, grape, waxberry and strawberry.
In order to enhance the taste-absorbing improvement effect, the humectant in the step (1) is at least one of glycerin, propylene glycol, sorbitol, high fructose syrup and glucose alcohol syrup.
In order to improve the taste improvement effect, the mass ratio of the tobacco extract, the fruit extract and the humectant in the step (1) is (20-30): (60-80): (5-10).
Step (2): and applying the mixed solution on the paper filter material in a coating or spraying manner.
In order to enhance the odor absorption-improving effect, the amount of the mixed solution applied in the step (2) is 1.5g/m2-5g/m2。
And (3): and drying, embossing and slitting the paper filter material to obtain the paper filter stick.
The disclosure also provides a paper filter stick prepared by the preparation method of the paper filter stick.
The experimental procedures used in the examples below are conventional unless otherwise specified, the materials and reagents used therein are commercially available, and the equipment used in the experiments are well known to those skilled in the art without otherwise specified.
Example 1
Collecting the powder of Schchang tobacco leaf in redrying factory, adding into water according to solid-liquid (g: mL) ratio of 10:90, stirring at 80 deg.C for 5 hr, filtering, and distilling the filtrate to obtain tobacco leaf extract.
Removing core of fresh fructus Mali Pumilae, pulverizing pulp, adding into water at solid-liquid (g: mL) ratio of 30:70, stirring at 80 deg.C for 2 hr, filtering, and distilling the filtrate to obtain fructus Mali Pumilae extract.
Adding tobacco leaf extract, apple extract and sorbitol into water according to the weight ratio of 30:65:5 to prepare the mixture with the concentration of 5g/cm3The mixed solution of (1).
Applying the prepared mixed solution on the surface of the paper filter material in a coating manner, wherein the application amount is 3g/m2And then the paper filter stick S1 is made through the steps of drying, embossing, slitting and the like.
Example 2
Collecting commercially available Yunnan tobacco leaf extract and commercially available poplarAdding mume fructus extract and sorbitol into ethanol at weight ratio of 30:65:5 to obtain a mixture with concentration of 5g/cm3The mixed solution of (1).
Spraying the prepared mixed solution on the surface of a paper filter material, wherein the application amount is 5g/m2And then the paper filter stick S2 is made through the steps of drying, embossing, slitting and the like.
Example 3
Collecting the brazil tobacco leaf powder in the redrying factory, adding into water according to the solid-liquid (g: mL) ratio of 20:80, stirring at 80 deg.C for 10h, filtering, and distilling the filtrate to obtain the tobacco leaf extract.
Adding the above tobacco leaf extract, commercially available fructus Myricae Rubrae extract, commercially available fructus Citri Limoniae extract, and high fructose syrup into water at weight ratio of 20:35:35:10 to obtain a mixture with concentration of 10g/cm3The mixed solution of (1).
Applying the prepared mixed solution on the surface of the paper filter material in a coating manner, wherein the application amount is 2g/m2And then the paper filter stick S3 is made through the steps of drying, embossing, slitting and the like.
Example 4
Collecting and crushing tobacco stems in a redrying plant, adding the tobacco stems into ethanol according to a solid-liquid (g: mL) ratio of 40:60, stirring for 10 hours at 80 ℃, filtering, and distilling the filtrate to obtain the tobacco stem extract.
Removing core from fresh fructus Pruni Salicinae, pulverizing pulp, adding into ethanol at solid-to-liquid ratio of 25:75, stirring at 90 deg.C for 10 hr, filtering, and distilling the filtrate to obtain fructus Pruni Salicinae extract.
Adding tobacco stem extract, plum extract and high fructose syrup into ethanol according to the weight ratio of 30:60:10 to prepare the mixture with the concentration of 10g/cm3The mixed solution of (1).
The prepared mixed solution is sprayed on the surface of a paper filter material, and the application amount is 1.5g/m2And then the paper filter stick S4 is made through the steps of drying, embossing, slitting and the like.
Example 5
Collecting tobacco stems in a redrying plant, pulverizing, adding into water according to solid-liquid (g: mL) ratio of 40:60, stirring at 80 deg.C for 10 hr, filtering, and distilling the filtrate to obtain tobacco stem extract.
Adding tobacco stem extract, commercially available grape extract and glucose alcohol syrup into water according to the weight ratio of 30:65:5 to prepare the mixture with the concentration of 10g/cm3The mixed solution of (1).
Applying the prepared mixed solution on the surface of the paper filter material in a coating manner, wherein the application amount is 3g/m2And then the paper filter stick S5 is made through the steps of drying, embossing, slitting and the like.
Finished cigarettes, denoted as T1-T5, were wrapped with the paper filter sticks S1-S5 prepared in examples 1-5. The cigarette tipping the unfed paper filter rod was designated T0. And performing sensory evaluation on the cigarettes. The results are as follows:
TABLE 1 sensory test results
As can be seen from Table 1, the T1-T5 cigarette has different degree increases in sensory evaluation score compared with the T0 cigarette, and specifically shows that the aroma quality and the aroma amount are improved, the dryness and the irritation are reduced, the richness of the aroma is improved, and the aftertaste is cleaner. Therefore, the tobacco extract, the fruit extract and the humectant are added into the paper filter stick, so that the cigarette aroma quality and the moistening feeling can be effectively improved, the dryness and the irritation of smoke are reduced, the aftertaste is improved, and the smoking quality of cigarettes is improved.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. The preparation method of the paper filter stick is characterized by comprising the following steps:
step (1): mixing the tobacco extract, the fruit extract and the humectant to obtain a mixed solution;
step (2): applying the mixed solution on a paper filter material in a coating or spraying manner;
and (3): and drying, embossing and slitting the paper filter material to obtain the paper filter stick.
2. The method for preparing a paper filter stick according to claim 1, wherein the mixed solution in the step (1) is an aqueous solution or an alcohol solution.
3. The method for preparing a paper filter stick according to claim 1, wherein the concentration of the mixed solution in the step (1) is 5g/cm3-10g/cm3。
4. The method for preparing the paper filter stick according to claim 1, wherein the tobacco extract in the step (1) is an aqueous extract or an alcohol extract of at least one of tobacco leaves, tobacco powder, tobacco stems and tobacco stems.
5. The method for preparing a paper filter stick according to claim 1, wherein the fruit extract in the step (1) is an aqueous extract or an alcohol extract of at least one of apple, lemon, orange, grape, waxberry and strawberry.
6. The method for preparing a paper filter stick according to claim 1, wherein the humectant in the step (1) is at least one of glycerol, propylene glycol, sorbitol, high fructose syrup and glucose alcohol syrup.
7. The method for preparing the paper filter stick according to claim 1, wherein the mass ratio of the tobacco extract to the fruit extract to the humectant in the step (1) is (20-30): (60-80): (5-10).
8. The method for preparing a paper filter stick according to claim 1, wherein the mixed solution in the step (2)The amount of the applied liquid was 1.5g/m2-5g/m2。
9. A paper filter stick characterized by being prepared by the preparation method of the paper filter stick according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110468458.XA CN113057369A (en) | 2021-04-28 | 2021-04-28 | Paper filter stick and preparation method thereof |
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| CN202110468458.XA CN113057369A (en) | 2021-04-28 | 2021-04-28 | Paper filter stick and preparation method thereof |
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| CN113057369A true CN113057369A (en) | 2021-07-02 |
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| CN202110468458.XA Pending CN113057369A (en) | 2021-04-28 | 2021-04-28 | Paper filter stick and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113498877A (en) * | 2021-08-06 | 2021-10-15 | 云南氪莱铂科技有限公司 | Cooling filter rod for heating non-combustible cigarettes and preparation method thereof |
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| CN111778774A (en) * | 2020-07-13 | 2020-10-16 | 河南中烟工业有限责任公司 | Fruity cigarette paper and preparation method thereof |
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