CN105029695B - A method of using high energy electron beam modifying cigarette cellulose acetate filter stick - Google Patents
A method of using high energy electron beam modifying cigarette cellulose acetate filter stick Download PDFInfo
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- CN105029695B CN105029695B CN201510315414.8A CN201510315414A CN105029695B CN 105029695 B CN105029695 B CN 105029695B CN 201510315414 A CN201510315414 A CN 201510315414A CN 105029695 B CN105029695 B CN 105029695B
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Abstract
The present invention discloses a kind of method using high energy electron beam modifying cigarette cellulose acetate filter stick, it is characterised in that：Include the following steps：1) high-energy electron accelerator or cobalt source is used to generate high-power electron beam, in nitrogen or air atmosphere, filter stick is placed in transmission irradiation filter stick, irradiation dose control after 50-100KGy, irradiation；2) filter stick after the radiation modification for obtaining step 1) is placed 10 hours under the conditions of 40-60 DEG C, negative pressure of vacuum, after the small molecules such as removal free acetic acid or neutralization acid ingredient, then dries filter stick；3) filter stick in obtaining step 2) and/or after separation after equilibrium water conten, directly applies to cutting cigarette technique, prepares cigarette.
Description
Technical field
The present invention relates to cellulose acetate filter stick technical field of modification more particularly to a kind of use high energy electron beam modifying cigarettes
With the method for cellulose acetate filter stick.
Background technology
Filter stick for cigarettes tow primary raw material is cellulose acetate at present.After cellulose acetate tow extrusion molding, boundling, then
By process procedures such as loose, triacetyl glycerine plasticising and forming paper packages, filter stick for cigarettes is prepared.Cellulose acetate cigarette is filtered
Stick has many advantages, such as that nontoxic, tasteless, resistance to suction is small, adsorption effect is good, retention tarry matters in smoke are efficient.Further to improve two acetic acid
The retention of cellulose filter stick for cigarettes, the effect for adsorbing flue gas, scientific worker carry out cellulose acetate tow in filter stick for cigarettes
(physical means include high-temperature steam, plasma etc., chemical means such as macromolecular grafting, surface enzyme, at alkali for a large amount of study on the modification
Reason etc.).But since the chemical physical stability of cellulose acetate is higher, filter stick for cigarettes modified effect is not notable.Cigarette at present
With the modification of filter stick tow, there are still more application problems.
Electron beam is a kind of efficient radiation chemistry technology, irradiates molecule by electron-beam excitation, causes activated centre, from
And a series of physical-chemical reaction occurs.Electron beam technology is not required to introduce other reactive materials, while electron excitation energy level is high,
Therefore it is with the advantages such as efficient, energy saving and environmentally friendly.Common high-power electron beam generating means is that cobalt source or high power electronic add
Fast device, electron beam energy level is higher, has certain penetration capacity.Using the high-penetration performance of high-power electron beam, directly cause
The degradation reaction of the de-esterification and plasticizer of surface of cellulose acetate in filter stick；Simultaneously in cellulose acetate macromolecular master
Interchain generates activated centre, cross-linking reaction between macromolecular occurs, to reduce the crystallinity of cellulose acetate；It is irradiated in large dosage
Under, macromolecular main chain is even broken.
Invention content
The technical problem to be solved in the present invention is to provide a kind of comfort improving cigarette, simple for process, high-efficiency environment friendly,
With good production application foreground using the high energy electron beam modifying cigarette method of cellulose acetate filter stick.
To solve the above problems, the present invention adopts the following technical scheme that：
A method of using high energy electron beam modifying cigarette cellulose acetate filter stick, include the following steps：
1) high-energy electron accelerator or cobalt source is used to generate high-power electron beam, in nitrogen or air atmosphere, transmission irradiation
Filter stick is placed in filter stick, irradiation dose control after 50-100KGy, irradiation；
2) filter stick after the radiation modification for obtaining step 1) is placed 10 hours under the conditions of 40-60 DEG C, negative pressure of vacuum, is gone
Except small molecules such as free acetic acids or after neutralizing acid ingredient, then dry filter stick；
3) filter stick in obtaining step 2) and/or after separation after equilibrium water conten, directly applies to cutting cigarette technique,
Prepare cigarette.
Further, in step 1), the high-power electron beam occurring source is high-energy electron accelerator or cobalt source, electronics
Beam has the energy level of transmission filter stick, and irradiation dose need to be controlled in 50-100KGy.
Further, in step 1), the filter stick is for conventional cellulose acetate filter stick or containing cellulose acetate tow
Function filter stick.
The beneficial effects of the invention are as follows：The high-power electron beam generated using cobalt source radioactive source or high-energy electron accelerator,
It does not introduce under conditions of other compositions, directly irradiates filter stick, the sequence of chemical for causing cellulose acetate tow surface and inside becomes
To change, control irradiation dose is to realize the functional modification of filter stick for cigarettes, under certain irradiation dose control, modified filter
Stick water absorbing properties dramatically increase, while its appearance and physical property, meet follow-up filter stick cutting cigarette technological requirement, improve volume
The comfort of cigarette, and in the modifying process, operating procedure is simple, high-efficiency environment friendly, has good production application foreground.
Description of the drawings
Attached drawing 1 is filter stick weight in the embodiment of the present invention 2 with the change schematic diagram of high energy electron beams dosage.
Specific implementation mode
Embodiment 1
It is as follows using the modification of high-energy electron accelerator Dichlorodiphenyl Acetate fibre bundle filter stick：
With filter rod forming manufacturing technique requirent, acetate silk filter stick (100/120mm) is prepared, it is small that 2 are placed after forming
When.
Under nitrogen atmosphere, cellulose acetate tow filter stick filter stick filter stick is positioned on high-power electron beam driven pedrail.Pass through shoe
V belt translation makes filter stick at the uniform velocity by electron accelerator irradiation region.Control irradiation dose is 50-100KGy, Dichlorodiphenyl Acetate fibre bundle
Filter stick is irradiated by stick.It is placed 4 hours after irradiation.
Filter stick is immersed in 5% sodium carbonate liquor after 2-3 hours vacuum drying again after irradiation；Or directly 40-60 DEG C, it is true
It is placed 10 hours under empty condition of negative pressure.
After being balanced under the conditions of room temperature constant humidity, modified filter stick is applied in cutting cigarette technique, prepares cigarette.
Embodiment 2
It is as follows using the modification of cobalt source high-power electron beam emission source Dichlorodiphenyl Acetate cellulose filter stick：
With filter rod forming manufacturing technique requirent, cellulose acetate filter stick (100/120mm) is prepared, is placed 2 hours after forming.
Under nitrogen or air atmosphere, filter stick is positioned in cobalt source irradiation sector, irradiation dose is controlled in 50-
100KGy takes out filter stick and places 4 hours.
Cellulose acetate filter stick is immersed in 5% sodium carbonate liquor 2-3 hours vacuum dryings again after irradiation；Or directly exist
40-60 DEG C, place 10 hours under the conditions of negative pressure of vacuum.
After being balanced under the conditions of room temperature constant humidity, it is applied in cutting volume job contract skill, prepares cigarette.
In order to prove the superiority of preparation method of the present invention, inventor is to same specification cellulose acetate filter stick, in difference
Single Zhi Kechong variations under the conditions of cobalt source irradiation dose are detected.Modified filter stick is put down under 25 DEG C, 60% environment of relative humidity
Weighing apparatus is weighed after 24 hours.As a result it see the table below and Fig. 1.
As irradiation dose increases, after filter stick balance, individual cigarette weight first increases is reduced afterwards.This may be cellulose acetate tow table
Polarity after emaciated face esterification adsorbs the moisture in environment to which water content increases, therefore filter stick list Zhi Kechong is with increase.But with
The lasting increasing of irradiation dose causes cellulosic backbone fracture and fine structure to destroy, and tow water absorbing properties decline.Filter stick it is hard
Degree shows same variation tendency.
The cigarette quality influence that filter stick is modified by cigarette sensory evaluating smoking's standard comparing shows：Appropriate irradiation dose is modified
Filter stick compares unmodified filter stick, more effectively promotes cigarette moisture feeling and comfort, but irritation has increased slightly, perfume quantity and texture
It remains unchanged Deng other indexs.
The beneficial effects of the invention are as follows：The high-power electron beam generated with cobalt source radioactive source or high-energy electron accelerator, not
It introduces under conditions of other compositions, directly irradiates filter stick, cause the sequence of chemical variation of cellulose acetate tow surface and inside,
Control irradiation dose is to realize the functional modification of filter stick for cigarettes, under certain irradiation dose control, modified filter stick
Water absorbing properties dramatically increase, while its appearance and physical property, meet follow-up filter stick cutting cigarette technological requirement, improve cigarette
Comfort, and in the modifying process, operating procedure is simple, high-efficiency environment friendly, has good production application foreground.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work should all be covered within the scope of the present invention.
Claims (1)
1. a kind of using the high energy electron beam modifying cigarette method of cellulose acetate filter stick, it is characterised in that：Include the following steps：
1）High-power electron beam is generated using high-energy electron accelerator or cobalt source, electron beam has the energy level of transmission filter stick, in nitrogen
Or in air atmosphere, transmission irradiation filter stick, irradiation dose control is 100KGy, and filter stick is placed after irradiation；
2）By step 1）Filter stick is immersed in 5% sodium carbonate liquor after 2-3 hours vacuum drying again or incites somebody to action after obtained radiation modification
Step 1）Filter stick is placed 10 hours under the conditions of 40-60 DEG C of negative pressure of vacuum after obtained radiation modification, to remove free acetic acid
Small molecule neutralizes acid ingredient；
3）By step 2）Filter stick after obtaining and/or detaching after equilibrium water conten, directly applies to cutting cigarette technique, prepares
Cigarette；
In step 1）In, the filter stick is conventional cellulose acetate filter stick or the function filter stick containing cellulose acetate tow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315414.8A CN105029695B (en) | 2015-06-10 | 2015-06-10 | A method of using high energy electron beam modifying cigarette cellulose acetate filter stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315414.8A CN105029695B (en) | 2015-06-10 | 2015-06-10 | A method of using high energy electron beam modifying cigarette cellulose acetate filter stick |
Publications (2)
| Publication Number | Publication Date |
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| CN105029695A CN105029695A (en) | 2015-11-11 |
| CN105029695B true CN105029695B (en) | 2018-11-13 |
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| CN201510315414.8A Active CN105029695B (en) | 2015-06-10 | 2015-06-10 | A method of using high energy electron beam modifying cigarette cellulose acetate filter stick |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109527654A (en) * | 2019-01-29 | 2019-03-29 | 安徽大学 | A kind of compound filter tip bar and preparation method thereof heating non-combustion-type tobacco product |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649941A (en) * | 1985-12-16 | 1987-03-17 | R. J. Reynolds Tobacco Company | Adjustable air dilution cigarette exhibiting controlled pressure drop |
| CN1111019C (en) * | 1999-10-09 | 2003-06-11 | 中国科学院化学研究所 | Polypropylene filter for cigarette and its preparation method |
| CN1151738C (en) * | 2001-07-12 | 2004-06-02 | 中国科学院化学研究所 | Process for preparing polypropylene filter rod for cigarettes |
| CN1171547C (en) * | 2003-06-13 | 2004-10-20 | 玉溪金灿科技有限公司 | Cigarette processing method for lowering benzo[a] pyrene content in smoke |
| US20080173319A1 (en) * | 2007-01-17 | 2008-07-24 | James Kedzie Jacobs | Smokeable product with reduced content of pathogens |
| CN101433369B (en) * | 2007-11-14 | 2011-12-07 | 同方威视技术股份有限公司 | Method and apparatus for reducing tar and eliminating harm in cigarette |
| CN102179028A (en) * | 2011-04-01 | 2011-09-14 | 江南大学 | Method for degrading cellulose acetate fibers used in cigarettes by electron beam radiation in combination with biological enzyme technology |
| GB2493490A (en) * | 2011-05-20 | 2013-02-13 | Innovia Films Ltd | Process for dissolving and casting non-dissolving cellulose |
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