CN103169154A - Compound filter tip bar and preparation method thereof - Google Patents
Compound filter tip bar and preparation method thereof Download PDFInfo
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- CN103169154A CN103169154A CN2011104400194A CN201110440019A CN103169154A CN 103169154 A CN103169154 A CN 103169154A CN 2011104400194 A CN2011104400194 A CN 2011104400194A CN 201110440019 A CN201110440019 A CN 201110440019A CN 103169154 A CN103169154 A CN 103169154A
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Abstract
The invention relates to a compound filter tip bar and a preparation method of the compound filter tip bar. The compound filter tip bar comprises, by weight, 90-98 parts of compound silk bundles and 2-10 parts of plasticiser glycerol triacetate. A cigarette connected with the filter tip bar is free from changes of remained taste, basically free from changes of aroma quality, harmonious, and soft in mouthfeel. 'Taste' results of the cigarette connected with the filter tip bar are the same with those of a cigarette connected with a cellulose acetate filter tip bar.
Description
Technical field
The present invention relates to the cigarette field, be specifically related to a kind of composite filter-tip rod and preparation method thereof.
Background technology
At present, on the domestic market, the filter-tip material of Commercialization application is mainly cellulose acetate fibre and polypropylene fibre, nearly 300,000 tons of total amount, wherein the consumption of cellulose acetate fibre has accounted for more than 80%, but cellulose acetate fibre and polypropylene fibre have following shortcoming:
The cellulose acetate filter tip has following deficiency: 1) derive from timber (growth cycle is generally greater than 5 years), a large amount of use can be destroyed ecological environment; 2) although the cellulose acetate degradable, degradation cycle usually surpasses 4 years, so abandoning of filter stick can be caused certain environmental pollution; 3) adopt the solution spinning spinning, complex manufacturing has the environmental issues such as solvent acetone volatilization recovery; 4) technique, equipment, correlation technique and the main dependence on import of part tow finished product.
There are many weak points equally in the polypropylene filter mouth: 1) polypropylene derives from the non-renewable resources oil, does not meet Global Sustainable Development and domestic national conditions; 2) polypropylene is non-polar material, and absorption property is relatively poor, and the filter stick strainability that obtains is poor, is unfavorable for health; 3) due to the nonpolar and high-crystallinity of polypropylene fibre, bond properties is poor, and tow is bonded into the complex process of filter stick.
Because the main dependence on import of cellulose acetate fibre, polypropylene is Shortcomings also, thus market derived PLA as an alternative material be used in cigarette.
PLA is used for the filter tip of cigarette, and following advantage is arranged: 1) PLA is the polyester construction of polarity, and absorption property is excellent, and alternative cellulose acetate is used in medium-to-high grade cigarette; 2) biodegradable, degradation cycle short (in 1 year under the landfill condition degradable be carbon dioxide and water); 3) source is renewable, and primary raw material lactic acid be the tunning of starch, and starch source has been alleviated energy crisis in reproducible crops, has protected ecological environment, and has realized the carbon cycle of earth surface, has reduced greenhouse gas emission; 4) production technology is simple, prepares acid fiber by polylactic by melt spinning method, can utilize the production line of polypropylene tows, has solved the environmental issue of cellulose acetate tow production process complexity and acetone solvent; 5) from technical equipment to producing production domesticization fully.
Although PLA is used for cigarette filter, above-mentioned many merits being arranged, due to the particularity of cigarette industry, is professional person and common smoker " smoking " effect for the most important evaluation index of filter tip.And any filter tip new material all can cause the variation of flue gas mouthfeel; therefore; substitute cellulose acetate tow fully with the PLA tow on existing brand cigarette certain market risk is arranged; tobacco unit uses the trial state that needs to observe on the new brand cigarette to the scale of poly-lactic acid material, need the long time cycle.
In order to accelerate PLA in the application in cigarette field, the mode that substitutes by part is developed the value of PLA, namely partly substitute cellulose acetate tow with the PLA tow, material of main part is still cellulose acetate tow, guarantees that by the addition of controlling the PLA tow significant change does not occur filter-tip " smoking " effect.
Chinese patent application 201010151504.5 (publication number is CN 101816456A) discloses a kind of cigarette filter tip composite material, and wherein the mass fraction of acid fiber by polylactic is 30-90%, and the mass fraction of cellulose acetate fibre is 10-70%, patent has also related to the composite manufacture method, after first polyactide fiber filament and cellulose acetate fibre long filament being opened fibre respectively, mass fraction by acid fiber by polylactic is 30-90%, it is two-layer that the mass fraction of cellulose acetate fibre is that the proportioning of 10-70% is paved into, then adopt the vertical injection of air-spray or needle point method, make two-layer fiber mutually carry out physical entanglement, triacetyl glycerine by the 1-5% of cellulose acetate fibre weight be sprayed at this fabric face thereafter, make the bounding point after cellulose acetate fibre surface formation point-like is dissolved, and with the be coated and fixed cigarette filter tip composite material of network structure wherein of the acid fiber by polylactic that tangles.
Chinese patent application 201010614633.3 (publication number CN102108196A) provides a kind of preparation method of degradation material, and the composition of this degradable material is: PLA 50-80%; Cellulose acetate 10-40%; Biodegradable polyester 1-10%; Plasticizer 1-10%; Nanometer organic modification montmonrillonite 1-5%.Simultaneously; the preparation method has also been mentioned in this invention: PLA, cellulose acetate, Biodegradable polyester, plasticizer, nanometer organic modification montmonrillonite are joined in high-speed mixer; stir; then the above-mentioned raw material that mixes is put into that comminutor carries out mixing, melting, extrudes, cooling rear pelletizing, obtained degradation material.
The cigarette of the filter stick preparation that employing Chinese patent application 201010151504.5 relates to, have following two problems: 1) hardness is inadequate, and drop-head is obvious; 2) " smoking " result of cigarette changes, and excitant increases, and pleasant impression and mouthfeel change to some extent, and the degree of variation is associated with the addition of PLA.
The main cause that the problems referred to above occur is: 1) the adhesive triacetyl glycerine of cellulose acetate does not have adhesive effect to the PLA tow, so filter-tip hardness has been lost in the interpolation of PLA; 2) triacetyl glycerine has certain plasticization to the PLA tow, makes PLA tow size stability reduce, volume contraction, and the drop-head phenomenon appears in whole filter stick; 3) the PLA tow composition that interception is filtered to flue gas is all different from cellulose acetate tow with amount, and a large amount of interpolations of PLA must cause the variation of pleasant impression and mouthfeel.
Summary of the invention
The object of the present invention is to provide a kind of composite filter-tip rod.
Composite filter-tip rod provided by the invention is comprised of the raw material of following weight portion: compound tow 90-98 part, plasticizer triacetyl glycerine 2-10 part.
Wherein:
Compound tow is the mixture of cellulose acetate tow and PLA tow, cellulose acetate tow weight accounting 70-90% (except 70%) wherein, PLA tow weight accounting 10-30% (except 30%).
Preferably, the intrafascicular cellulose acetate tow weight of composite filament accounting 75-90%, PLA tow weight accounting 10-25%.
Further optimize the intrafascicular cellulose acetate tow weight of composite filament accounting 80-90%, PLA tow weight accounting 10-20%.
The leading indicator of described cellulose acetate tow is: filament number 1.5-4.0dtex, tow total fiber number 2.0-4.0ktex, crispation number 18-28/25mm, fracture strength 〉=50N/ktex, content of titanium dioxide 0.2-0.6%.
The leading indicator of described PLA tow is: filament number 1.5-4.0dtex, tow total fiber number 0.2-1.2ktex, crispation number 18-28/25mm, fracture strength 〉=80N/ktex, content of titanium dioxide 0.2-0.6%.
The present invention also provides a kind of method for preparing the composite filter-tip rod, and the method includes the steps of:
1) shredding: PLA tow and cellulose acetate tow carry out respectively shredding, and be standby;
2) folded silk: PLA tow and the cellulose acetate tow of shredding are superimposed together up and down;
3) plying: the tow that is superimposed together is wound into a silk ribbon;
4) secondary shredding: above-mentioned silk ribbon is carried out the secondary shredding;
5) applying glue: be applied to equably the plasticizer triacetyl glycerine on tow;
6) wrap up in the paper cutting: the tow after applying glue is wrapped up in paper, and sealing cuts into rod.
In said method, wherein:
Step 1) width of tow opening is 15-40cm;
Step 2) folded equipment that uses is the crawler belt conveying equipment;
Step 3) width of silk ribbon is 20-80mm;
Step 5) applying glue can be selected whirl coating or spray pattern.
Filter stick provided by the invention has following advantage:
1, in filter stick provided by the invention:
Substitute the cellulose acetate tow of 10-30% with the PLA tow, alleviated to a certain extent the weak point of cellulose acetate tow, as:
1) cellulose acetate tow derives from timber (growth cycle is generally greater than 5 years), and the PLA tow derives from reproducible starch base crop (growth cycle is generally less than half a year);
2) degradation cycle of cellulose acetate tow surpasses 4 years usually, and abandoning of filter stick destroyed ecological environment, and the PLA tow can degradablely be carbon dioxide and water in the composting conditions next year;
3) technology of cellulose acetate tow, equipment, and part tow finished product dependence on import all, domestic several vinegar sheets and cellulose acetate tow production unit are all joint venture, technology and equipment mainly relies on overseas enterprise, and the PLA tow domesticizes fully;
4) cellulose acetate tow adopts the solution spinning spinning, and complex manufacturing has the environmental issues such as solvent acetone volatilization recoverys, and the employing of PLA tow is melt spinning method production, and technique is simple.
PLA tow addition is seen Fig. 1 to the impact of filter stick hardness.
Although the PLA tow can mix with cellulose acetate tow, two kinds of tow are mixed certain difficulty, if mix inhomogeneous filter stick hardness heterogeneity can occur and the obvious phenomenon of local contraction, cause the filter stick quality to descend.The inventor adopts twice shredding, then carries out compoundly, and has increased folded silk and plying step in the middle of twice shredding, control suitable shredding width and plying width, thereby realization mixedly enters two kinds of tow in filter stick evenly.
Simultaneously, screened the consumption of plasticizer according to the performance of the filter stick of making, hardness number is inadequate at least if plasticizer is crossed, and monofilament damaged phenomenon and filter stick can occur too much with more attachment if add.
2, compare with Chinese patent application 201010151504.5, filter stick drop-head phenomenon provided by the invention is obviously improved, and reaches the requirement of cellulose acetate filter stick drop-head.
3, compare with Chinese patent application 201010151504.5, filter stick hardness provided by the invention is obviously improved, and reaches cellulose acetate filter stick hardness requirement.
4, compare with existing cellulose acetate filter stick, the cigarette of filter stick provided by the invention tipping: pleasant impression does not become, fragrance matter does not become substantially, coordination, mouthfeel are soft, " smoking " result is suitable with the cellulose acetate filter stick, significantly better than the filter stick that Chinese patent 201010151504.5 is mentioned, can directly apply to the cigarette of existing brand.
Description of drawings
Fig. 1: PLA content is on the impact of filter stick hardness (plasticizer 5%wt, 100mm filtering rod 2800Pa ± 50Pa).
The specific embodiment
Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Embodiment 1: composite filament beam filter mouth
1, raw material: 94 parts, compound tow, 6 parts of plasticizer triacetyl glycerines, wherein composite filament is intrafascicular, PLA tow weight accounting 20%, cellulose acetate tow weight accounting 80%.
2, preparation method:
1) shredding: the shredding respectively of PLA tow and cellulose acetate tow, width is 20cm, and is standby;
2) folded silk: be superimposed together up and down by PLA tow and the cellulose acetate tow of track conveyor with shredding;
3) plying: the silk ribbon that the tow that is superimposed together is wound into wide 50mm;
4) secondary shredding: above-mentioned silk ribbon carries out the secondary shredding on filter-stick forming device, shredding width 30cm;
5) applying glue: triacetyl glycerine is sprayed on the tow surface equably; 6) wrap up in the paper cutting: the tow after applying glue is wrapped up in paper, and sealing cuts into rod.
3, filter stick evaluation:
The filter stick tipping is tested on certain brand cigarette at home:
1) physical index
Long 100 ± the 0.5mm of filter stick, circumference 24.5 ± 0.2mm, resistance to suction 2800 ± 50Pa, under 86%, 50 ℃ of condition of hardness, the 30min pyrocondensation 0.6%.
2) smoking effect
Pleasant impression does not become, and it is soft that fragrance matter does not become, measures abundance, coordination, mouthfeel substantially, without assorted gas.
Embodiment 2: composite filament beam filter mouth
1, raw material: 94 parts, compound tow, 6 parts of plasticizer triacetyl glycerines, wherein composite filament is intrafascicular, PLA tow weight accounting 15%, cellulose acetate tow weight accounting 85%.
2, preparation method:
1) shredding: the shredding respectively of PLA tow and cellulose acetate tow, width is 25cm, and is standby;
2) folded silk: be superimposed together up and down by PLA tow and the cellulose acetate tow of track conveyor with shredding;
3) plying: the silk ribbon that the tow that is superimposed together is wound into wide 60mm;
4) secondary shredding: above-mentioned silk ribbon carries out the secondary shredding on filter-stick forming device, shredding width 30cm;
5) applying glue: triacetyl glycerine is sprayed on the tow surface equably;
6) wrap up in the paper cutting: the tow after applying glue is wrapped up in paper, and sealing cuts into rod.
3, filter stick evaluation:
The filter stick tipping is tested on certain brand cigarette at home:
1) physical index
Long 100 ± the 0.5mm of filter stick, circumference 24.5 ± 0.2mm, resistance to suction 2800 ± 50Pa, under 88%, 50 ℃ of condition of hardness, the 30min pyrocondensation 0.5%.
2) smoking effect
Pleasant impression does not become, and that fragrance matter does not substantially become, measures is sufficient, coordinate, mouthfeel is soft, without assorted gas.
Embodiment 3: composite filament beam filter mouth
1, raw material: 94 parts, compound tow, 6 parts of plasticizer triacetyl glycerines, wherein composite filament is intrafascicular, PLA tow weight accounting 10%, cellulose acetate tow weight accounting 90%.
2, preparation method:
1) shredding: the shredding respectively of PLA tow and cellulose acetate tow, width is 15cm, and is standby;
2) folded silk: be superimposed together up and down by PLA tow and the cellulose acetate tow of track conveyor with shredding;
3) plying: the silk ribbon that the tow that is superimposed together is wound into wide 30mm;
4) secondary shredding: above-mentioned silk ribbon carries out the secondary shredding on filter-stick forming device, shredding width 30cm;
5) applying glue: triacetyl glycerine is sprayed on the tow surface equably;
6) wrap up in the paper cutting: the tow after applying glue is wrapped up in paper, and sealing cuts into rod.
3, filter stick evaluation:
The filter stick tipping is tested on certain brand cigarette at home:
1) physical index
Long 100 ± the 0.5mm of filter stick, circumference 24.5 ± 0.2mm, resistance to suction 2800 ± 50Pa, under 90%, 50 ℃ of condition of hardness, the 30min pyrocondensation 0.3%.
2) smoking effect
Pleasant impression does not become, and that fragrance matter does not substantially become, measures is sufficient, coordinate, mouthfeel is soft, without assorted gas.
Embodiment 4: composite filament beam filter mouth
1, raw material: 95 parts, compound tow, 5 parts of plasticizer triacetyl glycerines, wherein composite filament is intrafascicular, PLA tow weight accounting 25%, cellulose acetate tow weight accounting 75%.
2, preparation method:
1) shredding: the shredding respectively of PLA tow and cellulose acetate tow, the shredding width is 30cm, and is standby;
2) folded silk: be superimposed together up and down by PLA tow and the cellulose acetate tow of track conveyor with shredding;
3) plying: the silk ribbon that the tow that is superimposed together is wound into wide 40mm;
4) secondary shredding: above-mentioned silk ribbon carries out the secondary shredding on filter-stick forming device, shredding width 30cm;
5) applying glue: triacetyl glycerine is sprayed on the tow surface equably;
6) wrap up in the paper cutting: the tow after applying glue is wrapped up in paper, and sealing cuts into rod.
3, filter stick evaluation:
The filter stick tipping is tested on certain brand cigarette at home:
1) physical index
Long 100 ± the 0.5mm of filter stick, circumference 24.5 ± 0.2mm, resistance to suction 2800 ± 50Pa, under 82%, 50 ℃ of condition of hardness, the 30min pyrocondensation 0.8%.
2) smoking effect
Pleasant impression still can, that fragrance matter does not substantially become, measures is sufficient, mouthfeel is lighter, without assorted gas.
Comparative Examples 1:201010151504.5 embodiment 1
1, raw material: 95 parts, compound tow, 5 parts of plasticizer triacetyl glycerines, wherein composite filament is intrafascicular, PLA tow weight accounting 90%, cellulose acetate tow weight accounting 10%.
2, preparation method:
after first polyactide fiber filament and cellulose acetate fibre long filament being opened fibre respectively, mass fraction by acid fiber by polylactic is 90%, the mass fraction of cellulose acetate fibre is that 10% proportioning is paved into two-layer, then adopt the vertical injection of air-spray or needle point method, make two-layer fiber mutually carry out physical entanglement, triacetyl glycerine by 5% of cellulose acetate fibre weight be sprayed at this fabric face thereafter, make the bounding point after cellulose acetate fibre surface formation point-like is dissolved, and with the be coated and fixed cigarette filter tip composite material of network structure wherein of the acid fiber by polylactic that tangles.Subsequently composite is prepared filter stick on existing filter-stick forming device.
3, filter stick evaluation:
The filter stick tipping is tested on certain brand cigarette at home:
1) physical index
Long 100 ± the 0.5mm of filter stick, circumference 24.5 ± 0.2mm, resistance to suction 2800 ± 50Pa, under 68%, 50 ℃ of condition of hardness, the 30min pyrocondensation 10.5%.
2) smoking effect
Compare with the cellulose acetate filter stick, pleasant impression and aroma change are larger, and excitant strengthens, and coarse mouthfeel has a small amount of assorted gas.
Comparative Examples 2:201010151504.5 embodiment 3
1, raw material: 99 parts, compound tow, 1 part of plasticizer triacetyl glycerine, wherein composite filament is intrafascicular, PLA tow weight accounting 30%, cellulose acetate tow weight accounting 70%.
2, preparation method:
after first polyactide fiber filament and cellulose acetate fibre long filament being opened fibre respectively, mass fraction by acid fiber by polylactic is 30%, the mass fraction of cellulose acetate fibre is that 70% proportioning is paved into two-layer, then adopt the vertical injection of air-spray or needle point method, make two-layer fiber mutually carry out physical entanglement, triacetyl glycerine by 1% of cellulose acetate fibre weight be sprayed at this fabric face thereafter, make the bounding point after cellulose acetate fibre surface formation point-like is dissolved, and with the be coated and fixed cigarette filter tip composite material of network structure wherein of the acid fiber by polylactic that tangles.Subsequently composite is prepared filter stick on existing filter-stick forming device.
3, filter stick evaluation:
The filter stick tipping is tested on certain brand cigarette at home:
1) physical index
Long 100 ± the 0.5mm of filter stick, circumference 24.5 ± 0.2mm, resistance to suction 2800 ± 50Pa, under 72%, 50 ℃ of condition of hardness, the 30min pyrocondensation 1.5%.
2) smoking effect
Pleasant impression still can, fragrance matter substantially becomes, it is coarse that mouthfeel shows slightly, and assorted gas is seemingly arranged.
Experimental example 1: index is investigated
Test on certain brand cigarette at home, the basic physics conventional index of controlling comparative sample is identical, and (open type resistance to suction 1100 ± 20Pa, circumference 24.50 ± 0.2mm) compare embodiment 1-4, Comparative Examples 1-2 and the fine filter stick of existing vinegar.
1, index and method of testing:
1) method of testing of filter stick hardness:
Filter stick hardness refers to, within a certain period of time sample radially be subject to certain pressure, after the sample pressurized before diameter and pressurized the percentage of diameter be hardness.
Select the Fei Er wound to receive (FILTRON A) hardness tester and carry out the test of hardness, the test environment temperature is controlled at 22 ± 1 ℃, ambient humidity 55 ± 2%, 50 of sample numbers, load 10+290g, sample diameter 7.798 ± 0.1mm, compression time 10S, the hardness calculation formula:
%H hardness=(sample diameter-decrement)/sample diameter * 100%
2) method of testing of filter stick pyrocondensation head:
Select convection oven to carry out the test of pyrocondensation head, the test environment temperature is controlled at 50 ± 1 ℃, ambient humidity 30 ± 2%, and 50 of sample numbers, heated time 30min, sample length 100 ± 0.5mm, the computing formula of pyrocondensation head:
% pyrocondensation head=amount of contraction/sample length * 100%
3) " smoking " estimated:
The filter stick of embodiment 1-4 and Comparative Examples 1-2 respectively is hinged with 10 certain brand cigarettes in cigarette factory, places and send the cigarette expert of factory " smoking " group to identify after 15 days, and contrast with blank cellulose acetate filter stick.
2, testing result:
1) physical index (pyrocondensation head, hardness, hardness stability SD etc.) sees Table 1:
Table 1: physical index contrast
As shown in Table 1, the hardness of embodiment and comparative example and pyrocondensation head all are associated with the addition of PLA tow, and along with the increase of the intrafascicular PLA tow proportion of composite filament, hardness descends gradually, and a pyrocondensation numerical value becomes large.Compare with blank cellulose acetate filter stick, hardness and the pyrocondensation head of embodiment 1-4 sample all reach requirement, and the effect of Comparative Examples 1 is relatively poor, and the pyrocondensation head has reached 10.5%, and hardness only has 68%, and the index of Comparative Examples 2 does not reach requirement yet.
2) " smoking " result compares, and the smoking result of embodiment and Comparative Examples sees Table 2 based on blank sample cellulose acetate filter stick:
Table 2: " smoking " result contrast
| Filter stick | " smoking " result |
| The cellulose acetate filter stick | Pleasant impression is clean, and fragrance is sufficient, coordinate, mouthfeel is soft, without assorted gas |
| Embodiment 1 filter stick | Pleasant impression does not become, and it is soft that fragrance matter does not become, measures abundance, coordination, mouthfeel substantially, without assorted gas |
| Embodiment 2 filter sticks | Pleasant impression does not become, and that fragrance matter does not substantially become, measures is sufficient, coordinate, mouthfeel is soft, without assorted gas |
| Embodiment 3 filter sticks | Pleasant impression does not become, and that fragrance matter does not substantially become, measures is sufficient, coordinate, mouthfeel is soft, without assorted gas |
| Embodiment 4 filter sticks | Pleasant impression still can, that fragrance matter does not substantially become, measures is sufficient, mouthfeel is lighter, without assorted gas |
| Comparative Examples 1 filter stick | Pleasant impression and aroma change are larger, and excitant strengthens, and coarse mouthfeel has assorted gas |
| Comparative Examples 2 filter sticks | Pleasant impression still can, fragrance matter substantially becomes, it is coarse that mouthfeel shows slightly, and assorted gas is seemingly arranged |
As shown in Table 2: when PLA tow proportion is in 30% (embodiment sample), pleasant impression almost becomes, and that fragrance matter does not substantially become, measure is sufficient, coordinate, mouthfeel still can, without the gas of mixing, substantially suitable with cellulose acetate filter stick " smoking " result; And the variation of Comparative Examples 1 is larger, and pleasant impression and aroma change are larger, and excitant strengthens, coarse mouthfeel, assorted gas is arranged, and " smoking " do not passed through, the sample pleasant impression of Comparative Examples 2 still can, fragrance matter substantially becomes, it is coarse that mouthfeel shows slightly, and assorted gas is seemingly arranged, and the expert advice formula need adjust.
Although, above used general explanation, the specific embodiment and test, the present invention is described in detail, on basis of the present invention, can make some modifications or improvement to it, and this will be apparent to those skilled in the art.Therefore, these modifications or improvements, all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a composite filter-tip rod, is characterized in that, this composite filter-tip is comprised of the raw material of following weight portion: compound tow 90-98 part, plasticizer triacetyl glycerine 2-10 part.
2. composite filter-tip according to claim 1, it is characterized in that, described compound tow is the mixture of cellulose acetate tow and PLA tow, and wherein cellulose acetate tow weight accounting is greater than 70 and less than or equal to 90%, and PLA tow weight accounting is more than or equal to 10 and less than 30%.
3. composite filter-tip according to claim 2, is characterized in that, the intrafascicular cellulose acetate tow weight of described composite filament accounting 75-90%, PLA tow weight accounting 10-25%.
4. composite filter-tip according to claim 3, is characterized in that, the intrafascicular cellulose acetate tow weight of described composite filament accounting 80-90%, PLA tow weight accounting 10-20%.
5. according to claim 1-4 described composite filter-tips of any one, is characterized in that described cellulose acetate tow: filament number 1.5-4.0dtex, tow total fiber number 2.0-4.0ktex, crispation number 18-28/25mm, fracture strength 〉=50N/ktex, content of titanium dioxide 0.2-0.6%.
6. according to claim 1-4 described composite filter-tips of any one, is characterized in that, described PLA tow: filament number 1.5-4.0dtex, tow total fiber number 0.2-1.2ktex, crispation number 18-28/25mm, fracture strength 〉=80N/ktex, content of titanium dioxide 0.2-0.6%.
7. a method for preparing the described composite filter-tip rod of claim 1-6 any one, is characterized in that, the method includes the steps of:
1) shredding: PLA tow and cellulose acetate tow carry out respectively shredding, and be standby;
2) folded silk: PLA tow and the cellulose acetate tow of shredding are superimposed together up and down;
3) plying: the tow that is superimposed together is wound into a silk ribbon;
4) secondary shredding: above-mentioned silk ribbon is carried out the secondary shredding;
5) applying glue: be applied to equably triacetyl glycerine on tow;
6) wrap up in the paper cutting: the tow after applying glue is wrapped up in paper, and sealing cuts into rod.
8. method according to claim 7, is characterized in that, described step 1) and step 4) width of tow opening is 15-40cm; Described step 2) equipment of folded silk use is the crawler belt conveying equipment.
9. method according to claim 7, is characterized in that, described step 3) width of silk ribbon is 20-80mm.
10. method according to claim 7, is characterized in that, described step 5) applying glue is whirl coating or spray pattern.
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| CN105088868A (en) * | 2015-08-04 | 2015-11-25 | 浙江中烟工业有限责任公司 | High interface adhesion strength nanofiber composite paper and preparation method and application thereof |
| CN106998799A (en) * | 2014-11-28 | 2017-08-01 | 株式会社大赛璐 | The tow band of cigarette filter estron, cigarette filter, the manufacture method of the manufacture device of tow band and tow band |
| CN109846084A (en) * | 2018-12-26 | 2019-06-07 | 杨成云 | A kind of polylactic acid silk material composite molding filter rod |
| WO2020000585A1 (en) * | 2018-06-27 | 2020-01-02 | 常州龙途新材料科技有限公司 | Degradable odor-generating component for non-burned cigarette and cigarette product |
| WO2022222959A1 (en) * | 2021-04-21 | 2022-10-27 | 湖南吉首市民族烟材有限公司 | Processing device and manufacturing method for cooling element, and cigarette processing system |
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Application publication date: 20130626 Assignee: Hangzhou Dehong Technology Co.,Ltd. Assignor: MAANSHAN TONGJIELIANG BIOLOGICAL MATERIAL CO.,LTD. Contract record no.: X2022330000058 Denomination of invention: The invention relates to a composite filter rod and a preparation method thereof Granted publication date: 20141217 License type: Common License Record date: 20220318 |
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