CN102058160A - Process for producing netlike groove formed paper composite filter tip - Google Patents
Process for producing netlike groove formed paper composite filter tip Download PDFInfo
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- CN102058160A CN102058160A CN 201010595695 CN201010595695A CN102058160A CN 102058160 A CN102058160 A CN 102058160A CN 201010595695 CN201010595695 CN 201010595695 CN 201010595695 A CN201010595695 A CN 201010595695A CN 102058160 A CN102058160 A CN 102058160A
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Abstract
The invention discloses a process for producing a netlike groove formed paper composite filter tip. The production process mainly comprises manufacture of corrugated paper with netlike grooves and seamless bonding of formed paper and a filament bundle. The manufacture process of the corrugated paper with the netlike grooves mainly comprises the steps of coating of wide bobbin paper, drying, corrugated pressing, slicing and narrow disc rolling; and the seamless bonding of the formed paper and the filament bundle mainly comprises gluing on the inner surface of the corrugated paper, wrapping and bonding of the corrugated paper and the filament bundle, and wrapping and bonding of the formed paper of the outer layer. The corrugated shape of the corrugated paper produced by the technical scheme is firm, and the contact faces of the corrugated paper and the filament bundle are tightly bonded, so the space between the corrugated paper and the formed paper of the outer layer is greatly increased, and the quantity of air entering the filament bundle is greatly increased; and the air and the smoke are not shunted on the contact faces of the corrugated paper and the filament bundle, so uniform mixing of the air in the filter tip and the smoke is favorable, and the concentration of the smoke is reduced.
Description
Technical field
The invention belongs in the production of cigarettes matching used filter stick technical field of producing on the cigarette.
Background technology
In the prior art, what be close with product involved in the present invention is a kind of cigarette filter stick with corrugated paper, this mouth rod is wrapped with one deck corrugated layer at filter tow, is wrapped with forming paper at corrugated layer, and the manufacturing process of this filter stick mainly may further comprise the steps:
1) on Corrugating Machine, reel forming paper surface pressure is made corrugation, corrugated paper is cut into shallow bid;
2) on the mouth rod forming machine, hang two sleeve forming paper conveyers, one covering device is carried corrugated paper, another set of device is carried outer forming paper, in the wire feeder of mouth rod forming machine, corrugated paper is wrapped in the tow outer surface, simultaneously, wrap up one deck forming paper again at the corrugated paper outer surface, the edge of forming paper scribbles viscose glue, after forming paper is wrapped on the corrugated paper, its edge bonds together, through making filter stick after the typing.
3) in the rear end of mouth rod forming machine, filter stick cuts into finished product through dividing.
There is following shortcoming in the filter rod that above-mentioned explained hereafter is come out:
1) in the vertical direction of corrugation groove, the ductility of paper is bigger, not only when compacting, the width of paper is restive, and corrugated paper is when being packaged into the tow surface, because corrugated paper is stretched and is pushed, the width of corrugated paper can increase, and influences the position of corrugated paper overlap edge, and overlap edge can overlap, cause the local overlapping back of the corrugated paper that wraps up on tow thickness excessive, corrugation groove intensity reduced after local corrugation was stretched.
2) the corrugation active packet is rolled on the tow, does not fix between corrugation groove and tow, and the corrugation groove is easy to generate distortion, and tow is easily in the corrugated paper lower slider.
3) there is the gap in the contact-making surface of corrugated paper and tow, the gap that the forming paper that this gap specific surface is smooth directly is wrapped on the tow also wants big, in the filter rod, air-flow flows through from this gap easily, cause flue gas and air shunting in the filter rod, gas mixes inhomogeneous, does not reach the purpose that reduces flue gas concentration.
4) filter rod in use is subjected to the influence of the temperature and humidity of flue gas, and the corrugated paper distortion that eases back easily influences the quality of cigarette.
Summary of the invention
For solving in the prior art, use that after the corrugated paper compression moulding on cigarette filter tip rod paper extensibility is big, the corrugation groove is easy to generate distortion, tow easily in the problem of corrugated paper lower slider; There is big gap on the contact-making surface of solution corrugated paper and tow, causes the problem of air and flue gas shunting; Solve in use, influenced by the temperature and humidity of flue gas, the problem that corrugated paper eases back easily and is out of shape the invention provides a kind of netted groove forming paper composite filter production technology, and its technical scheme is as follows:
A kind of netted groove forming paper composite filter production technology, this production technology mainly comprise corrugated paper making and forming paper and two operations of tow seamless binding of being with netted groove.Wherein, the corrugated paper production process of band netted groove mainly may further comprise the steps:
A, employing reel paper Corrugating Machine press corrugation to handle to the reel paper of wide cut, and reel paper is emitted by the unwinding rack in the reel paper Corrugating Machine unreeling structure;
B, at the reel paper tape of emitting on its passage, apparatus for coating is set, with apparatus for coating in paper tape surface coating one deck coating;
C, on reel paper Corrugating Machine, baking oven is set, paper tape is imported baking oven, its surperficial coating is dried;
D, the paper tape after will drying import the knurling rolls of reel paper Corrugating Machine, and paper tape is carried out the compacting of corrugation groove, and the corrugation groove of knurling rolls is provided with netted obstruct point, and the direction of corrugation groove is consistent with the page orientation of paper tape;
E, the paper tape that will be suppressed with the corrugation groove import rolling-up mechanism, are wound into the wide cut corrugated paper reel of band corrugation;
F, wide cut corrugated paper reel is transported on the unwinding rack of cutting machine, emits by unwinding rack;
G, the wide cut corrugated paper is imported the cutting device of cutting machine, cut into many corrugated bands in a narrow margin;
H, corrugated band that will be in a narrow margin import in rolling-up mechanism, with every in a narrow margin paper tape be wound into one and coil corrugation reel paper in a narrow margin.
Forming paper and tow seamless binding mainly may further comprise the steps:
I, in the forming paper conveying mechanism of mouth rod forming machine, the unreeling structure of two sleeve forming paper is installed, a cover is used to carry outer forming paper, a cover is used to carry the corrugated paper on the corrugated paper reel in a narrow margin;
J, on the transfer passage of corrugation reel paper in a narrow margin, be provided with the adhesive apparatus for coating, apparatus for coating is in the surface coating layer of adhesive of corrugated paper in a narrow margin;
K, in the wire feeder of mouth rod forming machine, the corrugated paper in a narrow margin sent of the conveying mechanism of corrugation reel paper is wrapped in and draws in on the columniform tow in a narrow margin, the adhesive on corrugated paper surface is bonded at the filter stick that the tow circumferential surface forms corrugated paper and tow seamless binding; Simultaneously, the forming paper that outer forming paper conveying mechanism is sent superscribes the outer forming paper of one deck on the outer surface of corrugated paper, and the glue that the forming paper edge is smeared is pasted together the forming paper overlap joint.
After L, the process typing of wire feeder, filter stick is cut the formation finished product in mouth rod forming machine rear end.
In steps A, corrugated paper can select for use the thin paper of string paper pulp production also can select the nonwoven thin paper for use, and the paper grammes per square metre is at 60g/m
2-90g/m
2Between, air permeability is between 1000CU-20000CU.
In step B, the coating of corrugated paper surface coating is that cellulose diacetate is added in the acetone, and the solution of making after the mixing and stirring, the cellulose diacetate weight percent content in acetone is 10%-45%.
The thickness of coating is between 0.2mm-0.5mm, and coating can be coated on the two-sided single face that also can be coated on corrugated paper of corrugated paper.
The bake out temperature of corrugated paper in baking oven is controlled between 150 ℃-300 ℃ in step C.
In step D, the knurling rolls of reel paper Corrugating Machine, corrugation gash depth are between 0.7-1mm, and the groove top spacing is between 0.6-1.1mm, and distance is between 10mm to 15mm between the obstruct point on the corrugation groove.
In step H, the wide cut corrugated paper is wound into 9-13 and coils corrugated paper reel in a narrow margin in the rolling-up mechanism of cutting machine after cutting.
At the adhesive described in the J step is at normal temperatures, Celluloseacetate cigarette filter tow is added to dissolve to mix in the three triacetin fat make, and by weight percentage, the addition of Celluloseacetate cigarette filter tow is 1%-10% in the three triacetin fat; The amount of the adhesive of coating usefulness is in per hundred kilograms of tow, to stick with glue 8 kilograms-25 kilograms in mixture.
At the wire feeder front end of the mouth rod forming machine described in the K step, design and installation has the dancing roll of a with groove, and the gash depth on the dancing roll is between 0.7-1mm, and the groove top spacing is between 0.6-1.1mm.
Adopt above-mentioned production technology, carry out gluing on the corrugated paper surface and handle, help strengthening the steadiness after the corrugation compression moulding; Select the cellulose diacetate glue as adhesive, on the one hand because its physicochemical property and Celluloseacetate cigarette filter tow are approaching, easily and the Celluloseacetate cigarette filter tow adhesion, on the other hand because this glue shape after adding thermal finalization is more fixing, help the typing of corrugated paper, thereby eliminate the retractility of corrugated paper; It is more stable that the selection of corrugation press temperature helps the typing of corrugation, and the shape after heating of the glue on the corrugated paper is more stable; To the control of corrugation groove dimensions help increasing corrugation intensity; It is to prevent that air-flow from flowing away from the outer surface of corrugation groove that the compacting that intercepts point on the corrugation groove mainly acts on, and influences air and enters the tow internal layer and mix with flue gas; It mainly is for adapting to the Package size requirement of mouth rod forming machine to forming paper that corrugation is cut into shallow bid.
Because the selection of technique scheme has guaranteed that the corrugation forming paper shape of with groove is comparatively fixing, can not produce the stroke perpendicular to corrugation groove direction, satisfies the shape need of mouth rod forming machine to forming paper; In addition, through the forming paper that above-mentioned explained hereafter is come out, the corrugation groove shape is fixed, and can not be subjected to the influence of flue-gas temperature and humidity to produce distortion, influences the quality of product.
Behind the inner surface gluing of corrugated paper, corrugated paper is bonded on the outer surface of tow fully, corrugated paper and tow are closely bonded together, eliminate the gap on the contact-making surface between corrugated paper and the tow, make the air drag of the air drag of tow and corrugated paper contact-making surface and tow inside consistent, help air that the corrugated paper surface penetrates to the infiltration of tow internal layer, increase the uniformity of mixing of air and flue gas; In addition since at the inner peripheral surface integral adhesive of corrugated paper on tow, the inner peripheral surface position of corrugated paper is fixed, its flintiness increases greatly, can avoid flutes deform.
Because the corrugation shape is firm, the space between the contact-making surface of corrugation and tow and corrugation and the outer forming paper increases greatly, and the air capacity that penetrates in the tow can significantly increase, and helps that air evenly mixes with flue gas in the filter tip, the concentration of reduction flue gas.
Description of drawings
Fig. 1 is the product structure schematic diagram of this explained hereafter;
Fig. 2 is the operation principle schematic diagram of reel paper Corrugating Machine;
Fig. 3 is the knurling rolls structural representation of reel paper Corrugating Machine;
Fig. 4 is the operation principle schematic diagram of corrugation cutting machine;
Fig. 5 is the operation principle schematic diagram of mouth rod forming machine.
The specific embodiment
Embodiment: to shown in Figure 5, a kind of netted groove forming paper composite filter production technology, this production technology mainly comprise corrugated paper making and forming paper and two operations of tow seamless binding of being with netted groove as Fig. 1.Wherein, the corrugated paper production process of band netted groove mainly may further comprise the steps:
A, employing reel paper Corrugating Machine press corrugation to handle to wide volume obbbin band 2, and reel paper 2 is emitted by the unwinding rack 1 in the reel paper Corrugating Machine unreeling structure;
B, on the passage of the reel paper tape 2 of emitting, apparatus for coating 3 is set, with apparatus for coating 3 be coated with on reel paper tape 2 surfaces the layer coating;
C, on reel paper Corrugating Machine, baking oven 4 is set, reel paper tape 2 is imported baking ovens 4, its surperficial coating is dried;
D, the reel paper tape after will drying 2 import the knurling rolls 5 of reel paper Corrugating Machine, and paper tape is carried out the compacting of corrugation groove, and the corrugation groove 8 of knurling rolls 5 is provided with netted obstruct point 9, and the direction of corrugation groove 8 is consistent with the page orientation of reel paper tape 2;
E, the reel paper tape 2 that will be suppressed with the corrugation groove import rolling-up mechanisms 6, are wound into the wide cut corrugation reel paper 7 of band corrugation;
F, wide cut corrugation reel paper 7 is transported on the unwinding rack 10 of cutting machine, emits by unwinding rack 10;
G, wide cut corrugated paper 7 is imported the cutting device 11 of cutting machines, cut into many corrugated bands in a narrow margin;
H, corrugated band that will be in a narrow margin import in rolling-up mechanism 12, with every in a narrow margin paper tape be wound into one and coil corrugation reel paper 13 in a narrow margin.
Forming paper and tow seamless binding mainly may further comprise the steps:
I, in the forming paper conveying mechanism of mouth rod forming machine, the unreeling structure of two sleeve forming paper is installed, and a cover is a forming paper unreeling structure 19, is used to carry outer forming paper 20, one cover is a corrugated roll obbbin unreeling structure 17, is used to carry corrugated roll obbbin 13 in a narrow margin;
J, on the transfer passage of corrugation reel paper 13 in a narrow margin, be provided with adhesive apparatus for coating 18, apparatus for coating 18 is in the surface coating layer of adhesive of corrugation reel paper 13 in a narrow margin;
K, in the wire feeder 16 of mouth rod forming machine, the corrugated paper in a narrow margin 13 sent of the conveying mechanism of corrugation reel paper 13 is wrapped in and draws in on the columniform tow 14 in a narrow margin, and the adhesive on corrugated paper 13 surfaces is bonded at the filter stick that tow 14 circumferential surfaces form corrugated paper 13 and tow 14 seamless bindings; Simultaneously, the forming paper 20 that outer forming paper conveying mechanism is sent superscribes the outer forming paper of one deck on the outer surface of corrugated paper 13, and the glue that the forming paper edge is smeared is pasted together the forming paper overlap joint.
After L, the process typing of wire feeder 16, filter stick is cut the formation finished product in mouth rod forming machine rear end.
In steps A, corrugated paper is selected nonwoven for use, and the paper grammes per square metre is 70g/m
2Between, air permeability is 15000CU.
In step B, the coating of corrugated paper surface coating is that cellulose diacetate is added in the acetone, and the solution of making after the mixing and stirring, the cellulose diacetate weight percent content in acetone is 25%.
The thickness of coating is between the 0.3mm, and coating is coated on the inner surface of corrugated paper.
The bake out temperature of corrugated paper in baking oven is controlled to be 200 ℃ in step C.
In step D, the knurling rolls of reel paper Corrugating Machine, corrugation gash depth are 0.75mm, and the groove top spacing is 0.7mm, and distance is 12mm between the obstruct point on the corrugation groove.
In step H, the wide cut corrugated paper is wound into 11 and coils corrugated paper reel in a narrow margin in the rolling-up mechanism of cutting machine after cutting.
At the adhesive described in the J step is at normal temperatures, Celluloseacetate cigarette filter tow is added to dissolve to mix in the three triacetin fat make, and by weight percentage, the addition of Celluloseacetate cigarette filter tow is 8% in the three triacetin fat; The amount of the adhesive of coating usefulness is in per hundred kilograms of tow, to stick with glue 15 kilograms in mixture.
At the wire feeder front end of the mouth rod forming machine described in the K step, design and installation has the dancing roll 15 of a with groove, and the gash depth on the dancing roll 15 is 0.75mm, and the groove top spacing is 0.7mm.
Claims (3)
1. netted groove forming paper composite filter production technology, it is characterized in that: this production technology mainly comprises corrugated paper making and forming paper and two operations of tow seamless binding of being with netted groove.Wherein, the corrugated paper production process of band netted groove mainly may further comprise the steps:
A, employing reel paper Corrugating Machine press corrugation to handle to wide volume obbbin (2), and reel paper (2) is emitted by the unwinding rack (1) in the reel paper Corrugating Machine unreeling structure;
B, at the reel paper tape (2) of emitting on its passage, apparatus for coating (3) is set, with apparatus for coating (3) be coated with on paper tape (2) surface the layer coating;
C, baking oven (4) is set on reel paper Corrugating Machine, paper tape (2) is imported baking oven (4), its surperficial coating is dried;
D, the paper tape (2) after will drying import the knurling rolls (5) of reel paper Corrugating Machine, paper tape is carried out the compacting of corrugation groove, the corrugation groove (8) of knurling rolls (5) is provided with netted obstruct point (9), and the direction of corrugation groove (8) is consistent with the page orientation of paper tape (2);
E, the paper tape (2) that will be suppressed with the corrugation groove import rolling-up mechanism (6), are wound into the wide cut corrugation reel paper (7) of band corrugation;
F, wide cut corrugation reel paper (7) is transported on the unwinding rack (10) of cutting machine, emits by unwinding rack (10);
G, wide cut corrugated paper (7) is imported the cutting device (11) of cutting machine, cut into many corrugated bands in a narrow margin;
H, corrugated band that will be in a narrow margin import in rolling-up mechanism (12), with every in a narrow margin paper tape be wound into one and coil corrugation reel paper (13) in a narrow margin.
Forming paper and tow seamless binding mainly may further comprise the steps:
I, in the forming paper conveying mechanism of mouth rod forming machine, the unreeling structure of two sleeve forming paper is installed, and a cover is forming paper unreeling structure (19), is used to carry outer forming paper (20), one cover is a corrugated roll obbbin unreeling structure (17), is used to carry corrugated roll obbbin (13) in a narrow margin;
J, on the transfer passage of corrugation reel paper (13) in a narrow margin, be provided with adhesive apparatus for coating (18), apparatus for coating (18) is in the surface coating layer of adhesive of corrugation reel paper (13) in a narrow margin;
K, in the wire feeder (16) of mouth rod forming machine, the corrugated paper in a narrow margin (13) sent of the conveying mechanism of corrugation reel paper (13) is wrapped in and draws in on the columniform tow (14) in a narrow margin, and the adhesive on corrugated paper (13) surface is bonded at the filter stick that tow (14) circumferential surface forms corrugated paper (13) and tow (14) seamless binding; Simultaneously, the forming paper (20) that outer forming paper conveying mechanism is sent superscribes the outer forming paper of one deck on the outer surface of corrugated paper (13), and the glue that the forming paper edge is smeared is pasted together the forming paper overlap joint.
After L, the typing through wire feeder (16), filter stick is cut the formation finished product in mouth rod forming machine rear end.
2. netted groove forming paper composite filter production technology as claimed in claim 1 is characterized in that:
1) in steps A, corrugated paper can select for use the thin paper of string paper pulp production also can select the nonwoven thin paper for use, and the paper grammes per square metre is at 60g/m
2-90g/m
2Between, air permeability is between 1000CU-20000CU.
2) in step B, the coating of corrugated paper surface coating is that cellulose diacetate is added in the acetone, and the solution of making after the mixing and stirring, the cellulose diacetate weight percent content in acetone is 10%-45%.
The thickness of coating is between 0.2mm-0.5mm, and coating can be coated on the two-sided single face that also can be coated on corrugated paper of corrugated paper.
3) bake out temperature of corrugated paper in baking oven is controlled between 150 ℃-300 ℃ in step C.
4) in step D, the knurling rolls of reel paper Corrugating Machine, corrugation gash depth are between 0.7-1mm, and the groove top spacing is between 0.6-1.1mm, and distance is between 10mm to 15mm between the obstruct point on the corrugation groove.
5) in step H, the wide cut corrugated paper is wound into 9-13 and coils corrugated paper reel in a narrow margin in the rolling-up mechanism of cutting machine after cutting.
3. netted groove forming paper composite filter production technology as claimed in claim 2 is characterized in that:
6) be at normal temperatures at the adhesive described in the J step, Celluloseacetate cigarette filter tow added to dissolve to mix in the three triacetin fat make that by weight percentage, the addition of Celluloseacetate cigarette filter tow is 1%-10% in the three triacetin fat; The amount of the adhesive of coating usefulness is in per hundred kilograms of tow, to stick with glue 8 kilograms-25 kilograms in mixture.
7) at the wire feeder front end of the mouth rod forming machine described in the K step, design and installation has the dancing roll (15) of a with groove, and the gash depth of (15) is between 0.7-1mm on the dancing roll, and the groove top spacing is between 0.6-1.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010595695A CN102058160B (en) | 2010-12-06 | 2010-12-06 | Process for producing netlike groove formed paper composite filter tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010595695A CN102058160B (en) | 2010-12-06 | 2010-12-06 | Process for producing netlike groove formed paper composite filter tip |
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| Publication Number | Publication Date |
|---|---|
| CN102058160A true CN102058160A (en) | 2011-05-18 |
| CN102058160B CN102058160B (en) | 2012-10-03 |
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| CN201010595695A Expired - Fee Related CN102058160B (en) | 2010-12-06 | 2010-12-06 | Process for producing netlike groove formed paper composite filter tip |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309065A (en) * | 2011-09-08 | 2012-01-11 | 湖南中烟工业有限责任公司 | Installation pen for cigarette filter tip core |
| CN103989249A (en) * | 2014-05-29 | 2014-08-20 | 南通烟滤嘴有限责任公司 | Fine-count groove filter stick and fine-count groove composite filter stick |
| CN107997231A (en) * | 2017-12-13 | 2018-05-08 | 红塔烟草(集团)有限责任公司 | A kind of non-strand material bar form articles processing method |
| CN108260852A (en) * | 2016-12-30 | 2018-07-10 | 中烟机械技术中心有限责任公司 | Crimped paper pre-folds stacking device |
| CN109393558A (en) * | 2018-12-19 | 2019-03-01 | 湖北金叶玉阳化纤有限公司 | A kind of PLA cooling filter stick and preparation method thereof |
| CN109512024A (en) * | 2017-09-18 | 2019-03-26 | 中烟机械技术中心有限责任公司 | Paper filter stick manufacturing method |
| CN109645559A (en) * | 2018-12-25 | 2019-04-19 | 杨成云 | A kind of corrugated multilayer furrowfilter rod |
| CN109998160A (en) * | 2019-04-28 | 2019-07-12 | 云南中烟工业有限责任公司 | It is a kind of to heat the Cigarette that do not burn |
| CN110720660A (en) * | 2019-10-21 | 2020-01-24 | 云南中烟工业有限责任公司 | Forming process of corrugated hollow paper tube in cigarette preparation |
| WO2020220592A1 (en) * | 2019-04-28 | 2020-11-05 | 云南中烟工业有限责任公司 | Cigarette rod for heat-not-burn cigarette |
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| GB2039342A (en) * | 1979-01-16 | 1980-08-06 | Rengo Co Ltd | Rolls for use in corrugated fibreboard production and processing machines |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309065B (en) * | 2011-09-08 | 2013-01-30 | 湖南中烟工业有限责任公司 | Installation pen for cigarette filter tip core |
| CN102309065A (en) * | 2011-09-08 | 2012-01-11 | 湖南中烟工业有限责任公司 | Installation pen for cigarette filter tip core |
| CN103989249A (en) * | 2014-05-29 | 2014-08-20 | 南通烟滤嘴有限责任公司 | Fine-count groove filter stick and fine-count groove composite filter stick |
| CN103989249B (en) * | 2014-05-29 | 2016-08-24 | 南通烟滤嘴有限责任公司 | Ramuscule furrowfilter rod and ramuscule composite filter stick with launder |
| CN108260852A (en) * | 2016-12-30 | 2018-07-10 | 中烟机械技术中心有限责任公司 | Crimped paper pre-folds stacking device |
| CN109512024B (en) * | 2017-09-18 | 2021-07-20 | 中烟机械技术中心有限责任公司 | Method for manufacturing paper filter stick |
| CN109512024A (en) * | 2017-09-18 | 2019-03-26 | 中烟机械技术中心有限责任公司 | Paper filter stick manufacturing method |
| CN107997231A (en) * | 2017-12-13 | 2018-05-08 | 红塔烟草(集团)有限责任公司 | A kind of non-strand material bar form articles processing method |
| CN109393558A (en) * | 2018-12-19 | 2019-03-01 | 湖北金叶玉阳化纤有限公司 | A kind of PLA cooling filter stick and preparation method thereof |
| CN109393558B (en) * | 2018-12-19 | 2022-03-25 | 湖北金叶玉阳化纤有限公司 | PLA cooling filter rod and preparation method thereof |
| CN109645559A (en) * | 2018-12-25 | 2019-04-19 | 杨成云 | A kind of corrugated multilayer furrowfilter rod |
| CN109998160A (en) * | 2019-04-28 | 2019-07-12 | 云南中烟工业有限责任公司 | It is a kind of to heat the Cigarette that do not burn |
| WO2020220592A1 (en) * | 2019-04-28 | 2020-11-05 | 云南中烟工业有限责任公司 | Cigarette rod for heat-not-burn cigarette |
| CN110720660A (en) * | 2019-10-21 | 2020-01-24 | 云南中烟工业有限责任公司 | Forming process of corrugated hollow paper tube in cigarette preparation |
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| CN102058160B (en) | 2012-10-03 |
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