CN103284327A - Tobacco paper filter stick combining bamboo fiber and preparation method of tobacco paper filter stick - Google Patents
Tobacco paper filter stick combining bamboo fiber and preparation method of tobacco paper filter stick Download PDFInfo
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- CN103284327A CN103284327A CN2012105888848A CN201210588884A CN103284327A CN 103284327 A CN103284327 A CN 103284327A CN 2012105888848 A CN2012105888848 A CN 2012105888848A CN 201210588884 A CN201210588884 A CN 201210588884A CN 103284327 A CN103284327 A CN 103284327A
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Abstract
The invention relates to the field of tobacco filter sticks and discloses a tobacco paper filter stick combining bamboo fiber and a preparation method of the tobacco paper filter stick. The tobacco paper filter stick comprises a filter element and plug warp paper, wherein the filter element is formed by reeling paper fiber; and the preparation steps of the paper fiber are that tobacco fiber pulp and bamboo fiber pulp are mixed in proportion to prepare a pulp, then the pulp is subjected to sheet-making, pressing and drying to obtain a fiber paper base, and finally the fiber paper base is subjected to coating, drying and rolling to obtain the paper fiber. On the basis of the principle of wet-laid paper-making, the tobacco fiber and the bamboo fiber are reasonably mixed in an appropriate stage, the miscellaneous gas brought by non-tobacco fiber is successfully eliminated, greater filtering-adsorbing capacity of removing tar and nicotine is acquired, and the combining property that the tobacco fiber and the bamboo fiber complement each other is shown. The tobacco filter stick provided by the invention is applied in cigarettes, only offers a tobacco scent to a consumer without a paper scent, has the same color as that of a cigarette shred, has the intense texture of natural tobacco, and shows a new direction for the technical field of cigarette filter sticks.
Description
Technical field
The present invention relates to the cigarette filter rod technical field, more particularly, relate to tobacco paper filter stick of a kind of compound bamboo fibre and preparation method thereof.
Background technology
Include particulate in the cigarette smoke, be referred to as tar usually.Containing a large amount of chemical compositions in the tar, have 4000 to 5000 kinds, all is the unburnt product of tobacco.Except tar, also include other materials in the cigarette smoke, as " steam " or " gas " phase, also comprise volatile result of combustion of tobacco material, as acetaldehyde and other low molecular wt composition.Other phases in the cigarette smoke as " half volatile " phase, comprising many combustible substances, are equal to particulate and vapor phase.
Cigarette filter rod can filter the smog composition.The filter stick of cigarette is made up of filter core and forming paper.Filter tip is the important component part of cigarette, utilizes sorbing material in the cigarette filter and additive thereof can filter out cigarette and props up harmful substance in the main flume.At present, the filter tip filter material mainly contains three types: acetate fiber, polypropylene fibre and paper.
Introduce European cigarette market first in the twenties in 20th century by the papery filter tip that the crape silk paper is made, even paper filter tip has stronger removal tar and the ability of nicotine, but the consumer can not accept always, up to the 1950's, exploitation along with acetate fiber, cigarette with filter tip just begins to obtain consumer's extensive approval, and main cause is that paper filter tip has " taste of paper ", and the consumer often dislikes this point.And paper is softer, and is seriously polluted in the process of smoking, therefore should not directly use as filter tip.
The filter core of existing filter stick generally all is to adopt acetate fiber or polypropylene fibre to form.But because these filter cores that contain fiber directly contact with the lip of human body, media report is arranged recently, fiber particularly polypropylene fibre may enter human body along with the suction of cigarette, and health is caused damage.Along with the continuous pursuit of consumer for health, based on the filter tip for preparing via chemical substance of acetate fiber because the non-natural characteristics conflicted gradually.Paper filter tip is because of natural sex and that flue gas is held back efficient is higher, and after abandoning, than acetate fiber filter tip and polypropylene fibre filter tip, the easier degraded of paper filter tip receives much concern again.
Bamboo fibre is exactly a kind of cellulose fibre that extracts from the bamboo of self-sow, is the fifth-largest natural fiber after cotton, fiber crops, hair, silk.Bamboo fibre has air permeability and good, moment water imbibition, stronger wearability and good characteristics such as dyeability, have again simultaneously natural antibacterial, antibacterial, except mite, deodorization and anti-ultraviolet function.The former yarn of pure bamboo is used for garment material, summer sleeping mat, sheet, curtain, scarf etc., can produce frivolous garment material as adopting with the method for polyvinyl blending.Can also carry out blending with cotton, hair, fiber crops, thin,tough silk and chemical fibre, for woven or knitting, produce woven fabric and the knit fabric of all size.Woven fabric can be used for making jacket, easy dress, Western-style clothes suit, shirt, sheet and towel, bath towel etc.Though there is the people that bamboo fibre is applied in the cigaratte filter now, use bamboo fibre not to be well positioned to meet smoker's impression separately, can not give cigarette holder suitable soft or hard degree, namely can not get suitable smoking impression.
The report that some string filter stick for cigarettes are also arranged at present is to have reported a kind of string filter stick for cigarettes and preparation method thereof in 200910185294 the patent application as application number.But this patent filter stick directly is made of rice-straw fibre, wheat straw fiber, tabacco straw fiber and soybean stalk fiber, mainly be to utilize the plant straw to reduce the cigarette cost, filter tip after minimizing is used and acetate tow production process can not provide the function that more meets the cigarette filter rod requirement in addition to the pollution of environment.
Prior art adopts dry method paper also to obtain exploitation as the technology of preparation cigarette filter tip rod filter material, and mostly adopting wood pulp cellulose is main fibrous material, or is aided with a certain proportion of composite fibre, meldable fibre or ecological fiber to reach target separately.As Chinese patent (CN180167B) " dry process paper filter tip and preparation method thereof ", it has added 5%～65% hot melt core-skin fibre in wood pulp cellulose; Chinese patent application (CN101171981A) " binary composite cigarette filter stick " adopts the expanded dry method material that obtains fully made of paper as the filter core near the monobasic filter tip of pipe tobacco for another example, and this material directly is made up of pure wood pulp or 50%～95% wood pulp and 5%～50% composite fibre; Also have Chinese patent application (CN101624756A) " Biodegradable non-woven cloth for cigarette filter tips and preparation method thereof " to adopt wood pulp cellulose, polylactic acid fiber with high melting point, low melting point acid fiber by polylactic and water-soluble glue.Also there is the people directly baccy fiber to be delivered to the pressing section laying net for shaping by blower fan, form fluffy uniform fleece at the moulding guipure, make cigarette filter material paper through applying glue, preheating, roll-in, curing and moulding again, and in forming process, add natural medicinal herbs scrap feed material.The fiber that these dry method paper are used has related to fiber types such as wood pulp cellulose, composite fibre, hot melt core-skin fibre, acid fiber by polylactic, although these fibers can be used for making the filter material of filter tip, but make when filtering flue gas that the fragrant loss of cigarette is more, and bring certain wooden assorted gas into, when suction to cigarette odor-absorbing with jealous certain negative effect arranged, can not guarantee the cigarette quality, the more important thing is the color of these current materials and quality and natural baccy feel differ greatly, can not cater to the cigarette consumer to the pursuit of natural baccy sensation.
In recent research, also there is the people that baccy fiber is applied in the dry method paper processed baccy fiber is delivered to the pressing section laying net for shaping by blower fan, form fluffy uniform fleece at the moulding guipure.Make cigarette filter material paper through applying glue, preheating, roll-in, curing and moulding again, and in forming process, add natural medicinal herbs scrap feed material.But its technical scheme is still laid by simple baccy fiber and is formed, and use various colloids to be bonded, so it removes the poor effect of assorted gas, and the colloid that uses too much can bring peculiar smell to cigarette holder, in addition, can not solve the problem that reduces the tobacco dead meal, and additionally add baccy fiber in process of production, improve the tobacco use amount of whole cigarette on the contrary.
In addition, existing tobacco productive corporation aborning, produce a lot of waste materials, as waste tobacco leaf, offal, fragment, offal etc., utilization to these waste materials mainly is to substitute the small part pipe tobacco because fall in the pipe tobacco that adds cigarette after burnt purpose is reprocessed these waste materials at present, but well-known, the addition of these materials in pipe tobacco is subjected to very large restriction, can not solve the problem of tobacco manufacturing enterprise waste disposal and the dynamics that turns waste into wealth fully.
The new paper filter tip material of also not finding at present and can substitute acetate fiber fully, giving consumer's natural baccy sensation.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency that overcomes existing paper filter stick technology, a kind of baccy fiber paper filter stick is provided, and is to use waste material new paper filter tip materials that prepare, that can substitute acetate fiber fully, feel for consumer's natural baccy such as waste tobacco leaf that tobacco productive corporation produces aborning, offal, fragment, offal.
Second technical problem that the present invention will solve provides the preparation method of described baccy fiber paper filter stick.
Purpose of the present invention is achieved by the following technical programs:
A kind of baccy fiber paper filter stick is provided, comprises the forming paper of filter core and parcel filter core, described filter core is rolled by paper fiber and forms;
Described paper fiber is to adopt the tobacco material defibrination to obtain the baccy fiber slurry, with baccy fiber slurry and bamboo fibre slurry join slurry, copy sheet, squeezing, drying make fiber paper base, fiber paper base is through being coated with, being drying to obtain.The present invention uses the bamboo fibre slurry to match with the baccy fiber slurry in filter stick and prepares the filter stick material, because of the raw material sources of bamboo fibre slurry extensive, cost is moderate, (weak point) fiber that fibre structure and tobacco material prepare brings out the best in each other, guaranteed the function admirable such as tensile index, tensile strength, tear index, bulk, tightness of paper filter stick material, guarantee that flue gas well holds back the fragrance of efficient and cigarette smoke, and the performance bamboo fibre has performance antibacterial, the moisture absorption hydrofuge.The present invention adopts specific, suitable ratio mixing to prepare the filter stick material by wet papermaking in fiber pulp and the bamboo fibre slurry of tobacco material, fiber length is complementary, the filter stick adsorption filtration performance that obtains and the mechanical performance of filter stick itself are good, have guaranteed that filter stick brings consumer's mouthfeel and comfort level.
The mass ratio that described baccy fiber slurry and bamboo fibre slurry are joined slurry is preferably 1:0.5～3.Under this proportion, baccy fiber paper filter stick strainability is more excellent, and the color of filter stick material is more near color and the quality of natural pipe tobacco.The mass ratio that described baccy fiber slurry and bamboo fibre slurry are joined slurry more is preferably 1:1～2.
Described bamboo fibre slurry is the conventional buying in market.
Described baccy fiber slurry raw material is one or more in tobacco leaf, tobacco leaf fragment, offal or the offal.These several fibers mainly come to the tobacco scrap feed material, in the production process of cigarette, can produce a lot of this scrap feed material, allow scrap feed material obtain utilizing more fully, thoroughly solve the handling problems of tobacco productive corporation waste material.
Described baccy fiber papery filter core comprises lip contact jaw and pipe tobacco end, and described lip contact jaw is provided with groove.
Preferably, the described lip contact jaw length that is provided with groove is 5～12mm.
The present invention provides a kind of preparation method of baccy fiber paper filter stick simultaneously, may further comprise the steps:
S1. the tobacco material lixiviate is handled, obtained the extract of tobacco material, the solid slag of tobacco material;
S2. with the solid slag defibrination of tobacco material, obtain the baccy fiber slurry;
S3. copy sheet after baccy fiber slurry and bamboo fibre being mixed in proportion, through squeeze, drying, make the baccy fiber paper substrate;
S4. the extract of the baccy fiber raw material that step S1 is obtained is coated with the step to the baccy fiber paper substrate of S3 gained, and drying obtains the baccy fiber paper substrates;
S5. with the baccy fiber paper substrates through roll-in, roll, wrap up forming paper, namely get the baccy fiber paper filter stick.
The temperature that the described lixiviate of S1 is handled is 60～90 ℃, continues 60～100 minutes, 1～3 time repeatedly.
Preferably, the described tobacco material of S1 is one or more in tobacco leaf, offal, tobacco fragment or the offal.
S5 is described to be rolled and wraps up between the forming paper, also comprises preparation groove step; Described preparation groove is that rolled baccy fiber paper substrates is divided into lip contact jaw and pipe tobacco end, prepares groove at described lip contact jaw.Preferably, the described lip contact jaw length that is provided with groove is 5～12mm.
Beneficial effect of the present invention is as follows:
1. the invention provides a kind of new baccy fiber paper filter stick, thoroughly changed existing filter stick material design philosophy, real with the texture of natural baccy fiber material and good filter stick function perfect adaptation, the filter stick of papery of the present invention has stronger removal tar and the ability of nicotine than acetate fiber, but because raw material all derives from natural plant raw material, the filter tip of papery has only " taste of tobacco ", do not have " taste of paper or chemical fibre ", got rid of " taste of paper " and " taste of chemical fibre " that the consumer dislikes.
2. the color of baccy fiber paper filter tip is consistent with tobacco leaf color, has strong tobacco natural material texture; Realize visual, the touching of filter stick technology, cause consumer's interest, be easy to public praise and pass on from one to another, the sale of cigarette product is had stronger market touch property, for technical field of cigarettes has been guided new research direction.Specifically: paper filter stick material of the present invention can completely or partially substitute existing acetate fiber or polypropylene fibre material, has the favorable mechanical processing characteristics.
3. filter stick material of the present invention also has good bearing capacity, and reasonable compatibility and the proportioning of baccy fiber slurry and bamboo fibre slurry are used, and have guaranteed that the filter stick hardness of papery of the present invention is moderate, filter and high adsorption capacity.Because the characteristic of " papery ", it is more suitable for carrying various cigarette additives, improves the cigarette smoke wetability, gives cigarette sweet mouthfeel, the comfort level when improving smoking property of cigarette.Adopt the ratio of optimum short fiber and bamboo fibre, not only effectively improved the filter efficiency of filter stick, reduce tar and the harmful substance of cigarette, and improved the smoker greatly to the flexible demand of cigarette holder, when sucking cigarette, better contacted impression.
4. filter stick material primary raw material of the present invention comes from tobacco plant, can take the distinctive volatile flavor compounds of tobacco itself as the main flume of uniform temperature cigarette out of during by filter stick, thereby increase the cigarette flavor richness.
5. paper filter stick of the present invention has higher adsorptivity and relative absorbability, compare existing acetate fiber or polypropylene fibre fibrous material, can adsorb more cigarette mainstream flue gas aerosol, thereby improve the filter efficiency of filter stick, reduce tar and the harmful substance of cigarette.
6. baccy fiber paper filter stick of the present invention adopts trench design at the lip contact jaw of nearly lip, and this paper filter stick adopts trench design at nearly lip end, has the effect of dilution main flume, further reduces the tar content of cigarette.
Description of drawings
Fig. 1 baccy fiber paper filter stick material pictorial diagram.
Fig. 2 baccy fiber paper filter stick electron microscope picture.
The baccy fiber paper filter stick structural representation of Fig. 3 with groove.
Wherein, 1 is baccy fiber papery filter core, and 2 is forming paper, and 3 is groove.
The specific embodiment
Further describe the present invention below in conjunction with the drawings and specific embodiments.
S1. the tobacco material lixiviate is handled, obtained the extract of tobacco material, the solid slag of tobacco material;
Present embodiment by the feed liquid mass ratio be 1:7 respectively with offal and water, extracting temperature is 60 ℃, extraction time is 100 minutes, extracts repeatedly three times.The offal extract that obtains after the processing and offal solid slag.
By the feed liquid mass ratio be 1:10 respectively with tobacco leaf and water, extracting temperature is 80 ℃, extraction time is 60 minutes, extracts repeatedly three times.The tobacco leaf extract that obtains after the processing and tobacco leaf solid slag.
S2. with the other defibrination of the solid slag of tobacco material, obtain the baccy fiber slurry;
The present embodiment refining process is with reference to the refining process in the existing reconstituted tobacoo.
S3. baccy fiber slurry and bamboo fibre being starched (commercial) is that the ratio of 1:0.5 is joined and copied in mass ratio, copy sheet and obtain the baccy fiber paper substrate, copying blade technolgy can be with reference to the routine of wet papermaking, is squeezing 5 minutes under the 0.4MPa pressure at pressure, place then temperature be 105 ℃ dry 1 hour down.
S4. the extract of the baccy fiber raw material that step S1 is obtained is applied on the dried baccy fiber paper substrate of S3, and is dry then, obtains the baccy fiber paper substrates;
S5. with the baccy fiber paper substrates through roll-in, roll, the parcel forming paper, namely get the baccy fiber paper filter stick.
S1. the raw material lixiviate is handled, obtained the extract of raw material, the solid slag of raw material;
By the feed liquid mass ratio be 1:10 respectively with tobacco leaf and water, extracting temperature is 80 ℃, extraction time is 60 minutes, extracts repeatedly three times.The tobacco leaf extract that obtains after the processing and tobacco leaf solid slag.
By the feed liquid mass ratio be 1:10 respectively with tobacco fragment and water, extracting temperature is 75 ℃, extraction time is 60 minutes.The tobacco fragment extract that obtains after the processing and tobacco fragment solid slag.
S2. with the other defibrination of the solid slag of tobacco material, obtain the baccy fiber slurry;
The present embodiment refining process is with reference to the refining process in the existing reconstituted tobacoo.
S3. being that the ratio of 1:1 is joined and copied with baccy fiber slurry and bamboo fibre slurry in mass ratio, copying sheet and obtain the baccy fiber paper substrate, is squeezing 5 minutes under the 0.4MPa pressure at pressure, and placing temperature then is 105 ℃ of dryings 1 hour down.
S4. the extract of the baccy fiber raw material that step S1 is obtained is coated with the step to the dried baccy fiber paper substrate of S3, and is dry then, obtains the baccy fiber paper substrates; See accompanying drawing 1, the color of baccy fiber paper substrates and texture and pipe tobacco are very close.
S5. the baccy fiber paper substrates that step S4 is obtained namely gets the tobacco paper filter stick with compound bamboo fibre through roll-in.
S1. the tobacco material lixiviate is handled, obtained the extract of tobacco material, the solid slag of tobacco material;
By the feed liquid mass ratio be 1:10 respectively with tobacco leaf and water, extracting temperature is 80 ℃, extraction time is 60 minutes, extracts repeatedly three times.The tobacco leaf extract that obtains after the processing and tobacco leaf solid slag.
S2. with the other defibrination of the solid slag of tobacco material, obtain the baccy fiber slurry; Commercial bamboo fibre.
The present embodiment refining process is with reference to the refining process in the existing reconstituted tobacoo.
S3. being that the ratio of 1:2 is joined and copied with baccy fiber slurry and bamboo fibre in mass ratio, copying sheet and obtain the baccy fiber paper substrate, is squeezing 5 minutes under the 0.4MPa pressure at pressure, and placing temperature then is 105 ℃ of dryings 1 hour down.
S4. the extract of the baccy fiber raw material that step S1 is obtained is applied on the dried baccy fiber paper substrate of S3, and is dry then, obtains the baccy fiber paper substrates;
S5. the baccy fiber paper substrates that step S4 is obtained rolls with fluted cigarette holder model through roll-in, and the parcel forming paper namely gets with groove baccy fiber paper filter stick.Structural representation is seen shown in the accompanying drawing 3.
The length of the whole filter tip of present embodiment is with reference to existing conventional, and the baccy fiber paper filter stick is divided into lip contact jaw and pipe tobacco end, and groove is arranged at the lip contact jaw, and the lip contact jaw of with groove is long to be 10mm.
Embodiment 4 detects and application experiment
The electron microscope picture of embodiment 1 to 3 gained baccy fiber paper filter stick material is seen shown in the accompanying drawing 2.By accompanying drawing 2 as seen,
1, physical property
Measure the physical property of embodiment 1,2,3 gained filter sticks according to Y/CT 152-2001, the result is as described in Table 1.
The physical property of table 1 baccy fiber paper material
| | Embodiment | 1 | | |
| Tensile index/Nmg -1 | 36.63 | 38.5 | 38.63 | |
| Tensile strength/kNm -1 | 0.5 | 0.53 | 0.55 | |
| Tear index/mNm 2·g -1 | 2.00 | 2.09 | 2.15 | |
| Bulk/cm 3·g -1 | 2.65 | 2.71 | 2.70 | |
| Tightness/gcm -3 | 0.50 | 0.52 | 0.55 | |
| Air permeability/μ mPa -1·s -1 | 11.20 | 11.02 | 11.00 | |
| Filling value/cm 3·g -1 | 7.12 | 7.15 | 7.13 | |
| Relative absorbability % | 119 | 119 | 119 |
2, cigarette sensory evaluation result
The embodiment of the invention 1 to 3 gained baccy fiber paper filter stick and conventional cellulose acetate filter rod are joined the back as testing sample and in the same old way with the cigarette shreds rod respectively, carry out cigarette sensory evaluating smoking experiment, the results are shown in Table shown in 2, after sensory evaluating smoking's mark is given a mark separately by 7 specialty persons of smokeing panel test, make even divide equally the back gained (each project full marks is 10 minutes, keep a decimal behind the decimal point, trend is more good, and mark is more high).
Table 2 sensory evaluation result
| Project | Fragrance | Harmony | Assorted gas | Stimulate | Pleasant impression | Total points |
| To in the same old way | 8.0 | 8.1 | 7.0 | 7.2 | 8.1 | 38.4 |
| | 8.9 | 8.5 | 7.5 | 7.8 | 8.6 | 41.3 |
| | 9.2 | 8.3 | 7.8 | 8.0 | 8.7 | 42.0 |
| | 9.0 | 8.6 | 7.6 | 8.0 | 8.5 | 41.7 |
4, seven kinds of harmful components chemical analyses of cigarette smoke
Be in the same old way with the cigarette that adopts cellulose acetate filter rod, be the test sample with the cigarette sample that adopts the embodiment of the invention 3 gained baccy fiber paper filter sticks, according to cigarette harmfulness evaluation number, the smoke components that sample is burnt and sucked generation carries out chemical detection, as detecting index, cigarette harmfulness index is shown in Table 3 with 7 kinds of main harmful substances:
Table 3 cigarette harmfulness evaluation result
The result shows, the harmfulness index of embodiment 3 with to compare in the same old way, reduced by 17.77%.
Claims (10)
1. the tobacco paper filter stick of a compound bamboo fibre comprises it is characterized in that the forming paper of filter core and parcel filter core, described filter core by paper fiber through roll-in, roll and form;
Described paper fiber is to adopt the tobacco material defibrination to obtain the baccy fiber slurry, with baccy fiber slurry and bamboo fibre slurry join slurry, copy sheet, squeezing, drying make fiber paper base, fiber paper base is through being coated with, being drying to obtain;
The mass ratio that described baccy fiber slurry and bamboo fibre slurry are joined slurry is 1:0.5～3.
2. the tobacco paper filter stick of compound bamboo fibre according to claim 1 is characterized in that, the mass ratio that described baccy fiber slurry and bamboo fibre slurry are joined slurry is 1:1～2.
3. the tobacco paper filter stick of compound bamboo fibre according to claim 1 and 2 is characterized in that, the raw material of described baccy fiber slurry is one or more in tobacco leaf, tobacco leaf fragment, offal or the offal.
4. the tobacco paper filter stick of compound bamboo fibre according to claim 1 is characterized in that, described baccy fiber papery filter core comprises lip contact jaw and pipe tobacco end, and described lip contact jaw is provided with groove.
5. the tobacco paper filter stick of compound bamboo fibre according to claim 4 is characterized in that, described lip contact jaw length is 5～12mm.
6. the preparation method of the tobacco paper filter stick of a claim 1 or 2 described compound bamboo fibres is characterized in that, may further comprise the steps:
S1. the tobacco material lixiviate is handled, obtained the extract of tobacco material, the solid slag of tobacco material;
S2. with the solid slag defibrination of tobacco material, obtain the baccy fiber slurry;
S3. baccy fiber slurry and bamboo fibre slurry are copied sheet after the mixing in proportion, through squeezing, drying, make the baccy fiber paper substrate;
S4. the extract of the baccy fiber raw material that step S1 is obtained is applied on the baccy fiber paper substrate of S3 gained, and drying obtains the baccy fiber paper substrates;
S5. with S4 gained baccy fiber paper substrates through roll-in, roll and obtain filter core, filter core outer wrapping forming paper namely gets the baccy fiber paper filter stick.
7. the preparation method of the tobacco paper filter stick of compound bamboo fibre according to claim 6 is characterized in that, the described tobacco material of S1 is one or more in tobacco leaf, offal, tobacco fragment or the offal.
8. the preparation method of the tobacco paper filter stick of compound bamboo fibre according to claim 6 is characterized in that, S5 is described to roll and obtain filter core and be provided with groove.
9. the preparation method of the tobacco paper filter stick of compound bamboo fibre according to claim 8 is characterized in that, described filter core is divided into lip contact jaw and pipe tobacco end, and described groove is arranged at the lip contact jaw.
10. the preparation method of the tobacco paper filter stick of compound bamboo fibre according to claim 9 is characterized in that, described lip contact jaw length is 5～12mm.
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| CN111109641A (en) * | 2020-03-02 | 2020-05-08 | 云南中烟再造烟叶有限责任公司 | Functional tobacco leaf filter stick reproduced by paper-making method and preparation method thereof |
| CN112641125A (en) * | 2021-01-08 | 2021-04-13 | 中烟施伟策（云南）再造烟叶有限公司 | Paper filter tip rod of reconstituted tobacco and preparation method of filter tip rod |
| WO2022148294A1 (en) * | 2021-01-08 | 2022-07-14 | 中烟施伟策（云南）再造烟叶有限公司 | Paper-making process by powder molding and coating |
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