CN117918567A - Degradable non-woven fabric modification method for filter stick - Google Patents
Degradable non-woven fabric modification method for filter stick Download PDFInfo
- Publication number
- CN117918567A CN117918567A CN202410259627.2A CN202410259627A CN117918567A CN 117918567 A CN117918567 A CN 117918567A CN 202410259627 A CN202410259627 A CN 202410259627A CN 117918567 A CN117918567 A CN 117918567A
- Authority
- CN
- China
- Prior art keywords
- degradable
- woven fabric
- modifying
- filter
- standing
- 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.)
- Pending
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 50
- 238000002715 modification method Methods 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 30
- -1 amino, hydroxyl Chemical group 0.000 claims abstract description 29
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 22
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 18
- 239000004626 polylactic acid Substances 0.000 claims abstract description 18
- 239000000243 solution Substances 0.000 claims abstract description 17
- 239000003085 diluting agent Substances 0.000 claims abstract description 15
- 229920006237 degradable polymer Polymers 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- MKJXYGKVIBWPFZ-UHFFFAOYSA-L calcium lactate Chemical compound [Ca+2].CC(O)C([O-])=O.CC(O)C([O-])=O MKJXYGKVIBWPFZ-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229960002401 calcium lactate Drugs 0.000 claims abstract description 12
- 235000011086 calcium lactate Nutrition 0.000 claims abstract description 12
- 239000001527 calcium lactate Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012467 final product Substances 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 7
- 235000013399 edible fruits Nutrition 0.000 claims description 7
- 229920001661 Chitosan Polymers 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 3
- 229940072056 alginate Drugs 0.000 claims description 3
- 235000010443 alginic acid Nutrition 0.000 claims description 3
- 229920000615 alginic acid Polymers 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 235000019504 cigarettes Nutrition 0.000 description 10
- 239000000779 smoke Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 239000011269 tar Substances 0.000 description 6
- 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 description 5
- 238000001914 filtration Methods 0.000 description 5
- 235000010413 sodium alginate Nutrition 0.000 description 5
- 229940005550 sodium alginate Drugs 0.000 description 5
- 239000000661 sodium alginate Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 229920006221 acetate fiber Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229940113147 shellac Drugs 0.000 description 2
- 239000004208 shellac Substances 0.000 description 2
- 235000013874 shellac Nutrition 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- TXVHTIQJNYSSKO-UHFFFAOYSA-N benzo[e]pyrene Chemical class C1=CC=C2C3=CC=CC=C3C3=CC=CC4=CC=C1C2=C34 TXVHTIQJNYSSKO-UHFFFAOYSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000004005 nitrosamines Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The application discloses a degradable non-woven fabric modification method for a filter stick, which comprises the following steps: s1, preparing a degradable polymer solution with certain concentration and containing film forming substances and amino, hydroxyl and carboxyl for later use; preparing polysiloxane diluent with a certain concentration for standby; preparing a calcium lactate aqueous solution with a certain concentration for standby; s2, atomizing and uniformly spraying the degradable polymer solution onto the surface of the polylactic acid non-woven fabric, then moving the sprayed polylactic acid non-woven fabric into the calcium lactate aqueous solution, standing and taking out; s3, transferring the main body material subjected to water bath standing into polysiloxane diluent, and taking out after standing; and S4, placing the main body material taken out in the step S3 into a drying box for drying and heat treatment in sequence, and obtaining a final product. The application carries out surface treatment on the degradable non-woven fabric material, can improve the tensile strength and hardness of the non-woven fabric, meets the technological requirements of filter stick production, can increase active groups on the surface of the degradable non-woven fabric, and improves the adsorption capacity.
Description
Technical Field
The application relates to the technical field of cigarettes, in particular to a method for modifying degradable non-woven fabrics for filter sticks.
Background
The cigarette smoke contains 5000 kinds of compounds, wherein the number of the compounds generated by burning tobacco is about 2740, and the smoke contains partial components such as: benzene, aldehydes, volatile nitrosamines, benzopyrenes, and the like have proven to be harmful potential carcinogens. Therefore, the filter tip is widely paid attention to and applied as a smoke function component capable of effectively filtering part of harmful substances. At present, the conventional cigarette filter materials in the international market mainly comprise three types of paper filter tips, acetate fiber filter tips and polypropylene fiber filter tips. The paper filter tip has lower interception efficiency, is easy to wet and soften, is easy to adsorb aroma components in the smoke, can lead the smoke to have paper smell, and has low market application proportion. The diacetic acid fiber is used for the filter tip, has the advantages of good odor absorbing effect, firm texture, high efficiency for intercepting flue gas tar, attractive appearance and the like, and is widely used in the tobacco industry. The cost of the polypropylene fiber filter tip is obviously higher than that of the acetate fiber filter tip, but the rejection rate of tar is lower than that of the acetate fiber filter tip with the same pressure drop, and in addition, the heat resistance is poorer, and thermal collapse is easy to generate, so that the polypropylene filter tip is mostly used in low-grade cigarette products. Besides the common filter tip, the international novel cigarette filter material comprises a Phil Chuangna crown filter material and a starch-based filter material, which are respectively because of high cost and change of the taste of cigarettes, and cannot be popularized.
Based on the existing filter tip, the development of composite filter tip by using special additive is very popular. A large number of research results show that different filter tip additives are adopted to reduce the tar of cigarettes by 20% -50%, so that a great deal of exploratory work is carried out by scientific researchers around the influence of filter tip materials and additives used by the filter tip materials on the tar reduction and harm reduction of cigarettes and the improvement of the aroma of the cigarettes. The non-woven fabric is used as the molding material of the filter stick, is a novel filter stick production process which has just appeared in recent years, has wide material sources, and can be used for developing various functional novel filter sticks. However, the existing common non-woven fabric material has low mechanical strength and cannot meet the technological requirements of pressing filter sticks; the surface activity of the common chemical fiber non-woven fabric is low, and the filtering effect on smoke is common; the common chemical fiber non-woven fabrics such as PP non-woven fabrics, PET non-woven fabrics and the like are difficult to degrade in natural environment and easily cause environmental pollution. Therefore, there is a need to improve the mechanical strength, surface activity and degradability of the conventional nonwoven fabrics.
Disclosure of Invention
In order to solve the technical problems, the invention provides a degradable non-woven fabric modification method for a filter stick, which adopts a water-based polymer material and a degradable non-woven fabric as materials, carries out surface treatment on the degradable non-woven fabric material, improves the tensile strength and the hardness of the non-woven fabric, meets the process requirements of filter stick production, can increase active groups on the surface of the degradable non-woven fabric, and improves the adsorption capacity.
The technical scheme provided by the invention is as follows:
the degradable non-woven fabric modification method for the filter stick comprises the following operation steps:
S1, preparing a degradable polymer solution with certain concentration and containing film forming substances and amino, hydroxyl and carboxyl for later use; preparing polysiloxane diluent with a certain concentration for standby; preparing a calcium lactate aqueous solution with a certain concentration for standby;
S2, atomizing and uniformly spraying the degradable polymer solution onto the surface of the polylactic acid non-woven fabric, then moving the sprayed polylactic acid non-woven fabric into the calcium lactate aqueous solution, standing for a period of time, and taking out;
s3, moving the main body material subjected to water bath standing in the step S2 into polysiloxane diluent, standing for a period of time, and taking out;
S4, placing the main body material taken out in the step S3 into a drying box for drying, and then performing heat treatment to obtain a final product.
Preferably, the degradable polymer solution in the step S1 is prepared from chitosan, alginate (preferably sodium alginate) and lac sodium salt with the mass ratio of (0.05-3) (0.5-1) to 1.
Preferably, the total concentration of the degradable polymer solution in the step S1 is not more than 5%.
Preferably, the polysiloxane diluent in the step S1 is prepared from polysiloxane emulsion and fruit acid according to a certain proportion.
Preferably, in the step S1, the concentration of polysiloxane in the polysiloxane diluent is 1-3%, and the concentration of the fruit acid is 0.5-2%.
Preferably, the concentration of the aqueous solution of calcium lactate in the step S1 is 1 to 2%.
Preferably, the standing time in the step S2 is 10 to 300 seconds.
Preferably, the standing time in the step S3 is 10 to 600 seconds.
Preferably, after the drying in step S4 is completed, the moisture content of the host material is 0.4 to 0.8%.
Preferably, the heat treatment process in the step S4 specifically includes: and (3) carrying out heat preservation treatment on the dried main material at 120-180 ℃ for 60-300 s.
Compared with the prior art, the application has the following advantages:
(1) The hardness of the filter stick is an important physical index, the polylactic acid non-woven fabric is a degradable flexible material, the filter stick directly used for manufacturing is degradable, but has low strength and large absorption resistance fluctuation, the hardness and tensile strength of the polylactic acid non-woven fabric can be improved by the modification method, sodium alginate has film forming property, the sodium alginate can be attached to the surface of polylactic acid fibers by gelation of calcium salt, the hardness of the polylactic acid non-woven fabric is increased, and compared with an unmodified filter stick, the hardness of the modified polylactic acid non-woven fabric filter stick is improved by more than 30 percent through detection;
(2) The adsorption performance of the filter stick is an important functional index, and chitosan has rich amino and hydroxyl, wherein the amino has good reactivity to hydrogen sulfide and hydrogen cyanide, and the hydroxyl has reactivity to aldehydes and phenols. The shellac sodium salt has rich carboxyl, can be combined with nitride and alkaline components in the smoke, and reduces the irritation of the smoke, and the adsorption performance of the polylactic acid non-woven fabric filter stick can be effectively improved by introducing the two degradable active biological polymers, the adsorption performance of the filter stick is tested according to a national standard method, the tar filtering effect of the modified polylactic acid non-woven fabric filter stick is improved by more than 40% compared with an unmodified filter stick, the tar filtering effect of the modified polylactic acid non-woven fabric filter stick is improved by more than 20% compared with that of an acetate fiber filter stick, and the filtering effect of the modified polylactic acid non-woven fabric filter stick on hydrogen sulfide is improved by more than 40%;
(3) The main material adopted by the application is polylactic acid non-woven fabric, and the introduced modified material is biomass polymer which can be degraded in nature, so that the non-woven fabric modified by the preparation method has good biodegradability, and the material can be applied to cigarette filter sticks, novel tobacco filter sticks, mouth mask cloth in medical treatment, peculiar smell adsorption gauze and the like, and has wide market application prospect.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the invention provides a degradable non-woven fabric modification method for a filter stick, which comprises the following operation steps:
S1, preparing a degradable polymer solution with certain concentration and containing film forming substances, amino groups, hydroxyl groups and carboxyl groups for later use, wherein the total concentration of the degradable polymer solution is not more than 5 percent, and the degradable polymer solution is prepared from chitosan, alginate (preferably sodium alginate) and lac sodium salt with the mass ratio of (0.05-3) (0.5-1): 1; preparing polysiloxane diluent with a certain concentration (the polysiloxane diluent is mainly used for adjusting the hydrophobicity of the surface of a material) for standby, wherein the polysiloxane diluent is prepared from polysiloxane emulsion and fruit acid according to a certain proportion, the concentration of polysiloxane in the polysiloxane diluent is 1-3%, the concentration of fruit acid is 0.5-2%, and the fruit acid can promote the hydrolysis of the polysiloxane and has a promoting effect on hydrophobization; preparing a calcium lactate aqueous solution with a certain concentration (the calcium lactate aqueous solution has the functions of chitosan, sodium alginate and sodium shellac used for fixing the polymer solution and can generate a crosslinking reaction with the substances to enable the substances to be bonded on non-woven fabrics) for standby, wherein the concentration of the calcium lactate aqueous solution is 1-2%;
s2, atomizing and uniformly spraying the degradable polymer solution onto the surface of the polylactic acid non-woven fabric, then moving the sprayed polylactic acid non-woven fabric into the calcium lactate aqueous solution, standing for 10-300S, and taking out;
S3, transferring the main material subjected to water bath standing in the step S2 into polysiloxane diluent, standing for 10-600S, and taking out;
S4, placing the main body material taken out in the step S3 into a drying box for drying, and then performing heat treatment to obtain a final product.
In this embodiment, the moisture content of the host material after the drying in step S4 is 0.4 to 0.8%.
In this embodiment, the heat treatment process in step S4 specifically includes: and (3) carrying out heat preservation treatment on the dried main material at 120-180 ℃ for 60-300 s.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The degradable non-woven fabric modification method for the filter stick is characterized by comprising the following operation steps:
S1, preparing a degradable polymer solution with certain concentration and containing film forming substances and amino, hydroxyl and carboxyl for later use; preparing polysiloxane diluent with a certain concentration for standby; preparing a calcium lactate aqueous solution with a certain concentration for standby;
S2, atomizing and uniformly spraying the degradable polymer solution onto the surface of the polylactic acid non-woven fabric, then moving the sprayed polylactic acid non-woven fabric into the calcium lactate aqueous solution, standing for a period of time, and taking out;
s3, moving the main body material subjected to water bath standing in the step S2 into polysiloxane diluent, standing for a period of time, and taking out;
S4, placing the main body material taken out in the step S3 into a drying box for drying, and then performing heat treatment to obtain a final product.
2. The method for modifying the degradable non-woven fabric for the filter stick according to claim 1, wherein the degradable polymer solution in the step S1 is prepared from chitosan, alginate and lac sodium salt with the mass ratio of (0.05-3): 0.5-1): 1.
3. The method for modifying a degradable nonwoven fabric for filter rods according to claim 2, wherein the total concentration of the degradable polymer solution in the step S1 is not more than 5%.
4. The method for modifying a degradable nonwoven fabric for filter sticks according to claim 1, wherein the polysiloxane diluent in the step S1 is prepared from polysiloxane emulsion and fruit acid according to a certain proportion.
5. The method for modifying a degradable nonwoven fabric for a filter rod according to claim 4, wherein the concentration of polysiloxane in the polysiloxane diluent in the step S1 is 1-3% and the concentration of fruit acid is 0.5-2%.
6. The method for modifying a degradable nonwoven fabric for filter sticks according to claim 1, wherein the concentration of the aqueous solution of calcium lactate in the step S1 is 1 to 2%.
7. The method for modifying a degradable nonwoven fabric for filter rods according to any one of claims 1 to 6, wherein the standing time in step S2 is 10 to 300S.
8. The method for modifying a degradable nonwoven fabric for filter rods according to any one of claims 1 to 6, wherein the standing time in the step S3 is 10 to 600S.
9. The method for modifying a degradable nonwoven fabric for filter rods according to any one of claims 1 to 6, wherein the moisture content of the main material after the drying in step S4 is 0.4 to 0.8%.
10. The method for modifying a degradable nonwoven fabric for filter rods according to any one of claims 1 to 6, wherein the heat treatment process in step S4 is specifically: and (3) carrying out heat preservation treatment on the dried main material at 120-180 ℃ for 60-300 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410259627.2A CN117918567A (en) | 2024-03-07 | 2024-03-07 | Degradable non-woven fabric modification method for filter stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410259627.2A CN117918567A (en) | 2024-03-07 | 2024-03-07 | Degradable non-woven fabric modification method for filter stick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117918567A true CN117918567A (en) | 2024-04-26 |
Family
ID=90761054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410259627.2A Pending CN117918567A (en) | 2024-03-07 | 2024-03-07 | Degradable non-woven fabric modification method for filter stick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117918567A (en) |
-
2024
- 2024-03-07 CN CN202410259627.2A patent/CN117918567A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7228622B2 (en) | Filter materials for filter elements of smoking articles, and related systems and methods | |
| KR102177137B1 (en) | Graphene adsorbent, its manufacturing method and use, and cigarette filter tips and tobacco | |
| CN109619650A (en) | It is a kind of to heat the reconstituted tobacoo and preparation method thereof that do not burn | |
| CN100588336C (en) | Cocoon fibre cigarette filter tip and producing method | |
| CN107594617B (en) | Paper filter tip for reconstituted tobacco and preparation method thereof | |
| WO2024114026A1 (en) | Cigarette structure with composite filter stick | |
| CN104824827B (en) | A kind of Lignum Aquilariae Resinatum aromatic style dry method preparation of sections method | |
| CN102499478B (en) | Filter tip stick and preparation method thereof | |
| CN110679984A (en) | Preparation method of special slice for heating cigarettes | |
| CN101574536B (en) | Glucoside-containing composition, preparation method thereof and use thereof | |
| CN117918567A (en) | Degradable non-woven fabric modification method for filter stick | |
| CN102771893B (en) | Tip rod adopting chitosan fiber beams as filter materials and preparation method of tip rod | |
| CN100586317C (en) | Filter tip of polypropylene plus glue for improving sucked taste and preparation method thereof | |
| CN102247013A (en) | Method for preparing low-acetification natural fiber filter stick | |
| CN101518360A (en) | Method for preparing bamboo fiber filter tip for clearing cigarette tar | |
| CN102783711A (en) | Preparation method of tip rod for natural bamboo fiber cigarette | |
| CN107663808B (en) | Functional plant particle cigarette coating forming paper and preparation method thereof | |
| CN115644491A (en) | Tea flavor particle for cigarette filter stick and preparation method thereof | |
| CN109619674B (en) | Preparation method of lotus fiber for cigarettes and moisturizing filter tip containing lotus fiber | |
| CN110656396B (en) | Polylactic acid cigarette tow, preparation method and application thereof | |
| CN111713738A (en) | Fragrance-carrying non-woven fabric and application thereof in cigarette filter stick material | |
| CN102669815B (en) | Method for preparing cigarette dual-fiber hybrid filter tip by utilizing soybean fibers | |
| CN110013051B (en) | Additive for flower-flavor cigarette filter stick and preparation method thereof | |
| CN109892690B (en) | Graphene-based composite microsphere for cigarettes and preparation method thereof | |
| CN114532590B (en) | Heavy metal substance adsorption type acetate fiber for cigarettes and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |