CN112515232B - Cut stem treatment method capable of improving whiteness of cigarette ash - Google Patents
Cut stem treatment method capable of improving whiteness of cigarette ash Download PDFInfo
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- CN112515232B CN112515232B CN202011348701.6A CN202011348701A CN112515232B CN 112515232 B CN112515232 B CN 112515232B CN 202011348701 A CN202011348701 A CN 202011348701A CN 112515232 B CN112515232 B CN 112515232B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B5/00—Stripping tobacco; Treatment of stems or ribs
- A24B5/16—Other treatment of stems or ribs, e.g. bending, chopping, incising
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Abstract
The invention discloses a cut stem treatment method capable of improving the whiteness of cigarette ash, which comprises the following steps: (1) eluting cut stems; (2) the stem after elution treatment is repaired by adopting a repairing agent so as to restore the processing resistance strength of the stem, so that the stem can be smoothly added into cigarettes in the normal cigarette production process for use. After the cut stems treated by the method are added into cigarettes for use, the whiteness of ash of the cigarettes can be obviously improved by 15-30 units, the ash condensation index is reduced by 1-2 units, the sensory quality of the cigarettes is slightly changed, and potential safety hazards are avoided.
Description
Technical Field
The invention relates to the technical field of cigarettes, in particular to a cut stem treatment method capable of improving the whiteness of cigarette ash.
Background
In recent years, as the quality of cigarettes is improved by consumers, designers begin to optimize the cigarette quality in some details, and the whiteness of the ash of the cigarettes is one of the details. Generally speaking, the whiteness of cigarette ash can be roughly divided into two kinds, one is ash column whiteness, namely the whiteness of the outer surface of columnar ash presented after the cigarette is burnt; the other is the whiteness of the tobacco shred ash, namely the whiteness of the tobacco shred combustion ash presented after the internal tobacco shreds are peeled off from the cigarette paper ash after being combusted. The whiteness of ash column of the cigarette is mainly related to the combustion property of cigarette paper and the matching property of the cigarette paper and tobacco shreds; the whiteness of the tobacco ash is mainly determined by the formula structure and additives of the tobacco.
Although the inclusion of functional additives in tobacco shreds improves the whiteness of the tobacco ash, they are less frequently used because they tend to present unpredictable safety hazards.
In addition, the stem shreds are compact in structure, are easy to burst during combustion, influence the ash property of cigarette wrapping and cannot be directly used in tobacco shred formulas generally. Although the burst condition of the expanded cut stems can be greatly reduced, the content of nonflammable components such as pectin and the like contained in the expanded cut stems is still high, so that the burning ash of the expanded cut stems is generally blacker, the ash of cigarettes is blackened, and the consumption experience of consumers is influenced.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention is to treat the conventional cut stems (i.e. the expanded cut stems formed by cutting into shreds), so that the whiteness of the burning ash of the cut stems is improved on the premise of considering the processing strength, and the problem that the ash of the cigarettes is blackened is solved. The invention improves the combustibility of the cut stems and repairs the processing-resistant strength of the cut stems by repairing the eluted cut stems, so that the cut stems can be smoothly added into cigarettes for use in the normal cigarette production process.
The ash-retention index in the present invention is a value obtained by multiplying the ratio of the area of a cracked portion of ash to the entire area of ash in the wrapper by 100. If the ash crack portion area occupies 5.0% of the entire area, the ash coagulation index is 5.0. That is, the higher the ash index, the poorer the ash wrapping performance of the wrapper.
The first aspect of the invention provides a cut stem processing method capable of improving the whiteness of cigarette ash, which comprises the following steps:
(1) eluting cut stems;
(2) and repairing the eluted cut stems by using a repairing agent to restore the processing resistance strength of the cut stems.
Preferably, in the step (1), the cut stems are firstly impregnated; and then drying the eluted cut stems by adopting an airflow drying process, wherein the moisture content of the cut stems is controlled within 20 percent on the basis of mass percentage. More preferably in the range of 8-10%.
Preferably, in the step (1), the cut stems are soaked in the eluent, the soaked cut stems are eluted and filtered, the amount of the eluent is determined according to the fact that the cut stems are completely immersed in the eluent, and the temperature of the eluent is 40-60 ℃; soaking for 20-40min, and eluting for 2-3 times; the drying temperature is 100-120 ℃. The stem structure is seriously damaged due to overhigh temperature of the eluent or overlong dipping time, and the breakage rate in the subsequent process is greatly increased; too low an eluant temperature or too short an immersion time can lead to insufficient elution and limited improvement in whiteness. Wherein the eluent is water or an organic solvent, and the organic solvent refers to a washing solvent commonly used in the prior art, such as ethanol.
Preferably, in the step (2), the eluted and dried cut stems are conveyed into a rotating drum, a certain amount of repairing agent is sprayed on the surface of the tobacco stems under the condition of continuous rotation, and then pressure reduction and balanced diffusion are carried out for a certain time to recover the processing strength resistance of the cut stems; the repairing agent is selected from glycerol or propylene glycol.
Preferably, in the step (2), the adding amount of the repairing agent is 5-15% of the mass of the stem strips. If the repairing dose is too small, the effect of full repair cannot be achieved; too large can make the cut stems too wet, which is not conducive to subsequent production.
Preferably, in the step (2), the pressure of the reduced pressure equilibrium diffusion is controlled to be 400mbar-800mbar, and if the pressure is too high, the glycerol or propylene glycol molecules are not easy to diffuse fully; when the size is too small, atomization is easy to generate, and glycerol or propylene glycol molecules are not beneficial to the penetration of the inside of the cut stems. The diffusion time is 20-40 min. If the time is too short, the diffusion is insufficient and the complete balance cannot be realized; if the length is too long, the balanced diffusion is basically finished, the effect is not large, and the waste of time and energy consumption is caused.
The method has the advantages that pressure reduction balance diffusion is adopted in the repairing process, compared with tobacco shreds, the tobacco shreds are hard and compact in structure, and are not beneficial to elution and repair, if the repairing agent is sprayed on the surfaces of the tobacco shreds and then naturally diffuses, the repairing agent can only stay on the surfaces of the tobacco shreds and cannot reach the insides of the tobacco shreds, the flexibility of the tobacco shreds is not obviously improved, and accordingly breakage cannot be effectively reduced, and compared with natural diffusion, the method is more beneficial to reducing the breakage rate and improving the whiteness of cigarette ash due to the adoption of the pressure reduction balance diffusion.
The second aspect of the present invention provides a use of the cut stems treated by the cut stem treatment method according to the first aspect of the present invention, wherein the use of the cut stems in cigarettes can improve the whiteness of cigarette ash by 15-30 units and reduce the ash condensation index by 1-2 units.
Compared with the prior art, the invention has the following beneficial effects:
1. the whiteness of the cigarette ash is obviously improved: the whiteness of ash of the cigarette manufactured by using the cut stems is detected according to a standard method, and the whiteness of the ash can be generally improved by 15-30 units.
2. Improvement of the ash coagulation index: the combustibility of the cut stems is improved, the shrinkage of the cigarette tobacco shreds after combustion is obvious, the split rate of the cigarette paper is greatly reduced, and the ash coagulation index of the cigarette manufactured by using the cigarette paper is detected by a standard method and is generally reduced by 1-2 units.
3. The cigarette has small sensory quality change and no potential safety hazard: the cut stems occupy a small proportion in the sensory contribution of the smoke, so the influence is limited, and no potential safety hazard exists because no new additive is added.
4. The breakage rate is small: after dipping and elution are carried out on the cut stems, the cut stems are repaired, so that the processing strength of the cut stems is repaired, the crushing rate is greatly reduced, the crushing rate of the process for treating and improving the whiteness of the ash of the cigarettes by adopting the method can be controlled within 10-20%, and the production cost is saved. The invention provides a specific elution and repair method aiming at cut stems, and compared with cut tobacco, the cut stems are hard per se, compact in structure and not beneficial to elution and repair, and especially in the repair process, after glycerol or propylene glycol is sprayed on the cut stems, pressure reduction balance diffusion is carried out for a certain time, wherein the pressure of the pressure reduction balance diffusion is controlled to be 400-800 mbar, and when the pressure is too high, glycerol or propylene glycol molecules are not easy to fully diffuse; when the size is too small, atomization is easy to generate, and glycerol or propylene glycol molecules are not beneficial to the penetration of the inside of the cut stems. The diffusion time is 20-40 min. If the time is too short, the diffusion is insufficient, and the glycerol or the propylene glycol cannot permeate into the stem strips; if the length is too long, the balanced diffusion is basically finished, the effect is not large, and the waste of time and energy consumption is caused. Under the condition, the processing resistance strength of the cut stems can be obviously improved, the influence on chemical components inside the cut stems can be avoided, and the fine adjustment on the difference of the chemical components is also needed after the processing resistance of the cut stems is restored. Compared with the method of independently spraying and naturally diffusing, the method of the invention has the advantages that the stalk filament is repaired, the breaking rate of the process for improving the whiteness of the cigarette ash is lower, and the whiteness of the cigarette ash is improved more obviously. The grinding rate of the process for improving the whiteness of the cigarette ash is about 20 to 30 percent. If only spray into natural diffusion behind the repairing agent on the stalk silk surface, the repairing agent can only stay on the stalk silk surface, can't reach inside the stalk silk, and is not obvious to the promotion of stalk silk pliability to lead to can not effectual reduction to make garrulous. Compared with natural diffusion, the adoption of pressure reduction and balanced diffusion is more beneficial to reducing the breakage rate and improving the whiteness of the ash of the cigarettes.
5. The moisture content of the cut stems before decompression and diffusion is within 20%, and preferably, the moisture content of the cut stems after airflow drying is controlled within the range of 8-10%, so that the moisture content is too high, the cut stems after decompression and diffusion are too wet, the cut stems need to be further removed for use, and the moisture content is too low, a large amount of broken stems are generated in the previous drying process.
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FIG. 1 is a schematic view of the production process of the cut stem treatment method for improving the whiteness of cigarette ash.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but it should not be construed that the scope of the present invention is limited to the following examples. Various alterations and modifications based on the knowledge and the conventional means of ordinary skill in the art are intended to be included within the scope of the present invention without departing from the concept of the method of the present invention as described above.
The whole processing flow of the cut stems is shown in figure 1.
In addition, in the present example, the whiteness of the coiled ash was measured by a conventional powder whiteness measurement method, and the ash fusion index was calculated by the method described above.
Comparative example 1
Soaking conventional expanded cut stem in 40 deg.C warm water for 30min, and drying with air flow drying process to water content of about 8%. Conveying the eluted and dried cut stems into a rotary drum, spraying glycerol with the mass of 5% of that of the cut stems under the condition of continuous rotation, naturally diffusing for 60min, and taking out the cut stems to obtain the cut stem product capable of improving the whiteness of the cigarette ash.
The shredding rate of the cut stems obtained by the method is about 27 percent. The cut stems are prepared into cigarettes (No. 2) with cut tobacco without stems according to the proportion in the original formula, and compared with the original cigarettes (No. 1), the results are as follows:
| sample numbering | Whiteness of ash | Index of ash coagulation |
| 1# | 96.2 | 6.1 |
| 2# | 104.2 | 5.6 |
As can be seen from the above table, the whiteness and ash coagulation index of the cigarette ash produced from the processed cut stems are slightly improved compared with the original cigarette sample.
Example 1
Soaking conventional expanded cut stem in 40 deg.C warm water for 30min, and drying with air flow drying process to water content of about 8%. Conveying the eluted and dried cut stems into a rotary drum, spraying glycerol with the mass of 5% of that of the cut stems under the condition of continuous rotation, reducing pressure under 400mbar, balancing and diffusing for 40min, and taking out the cut stems to obtain the cut stem product capable of improving the whiteness of the cigarette ash.
The shredding rate of the cut stems obtained by the method is about 12 percent. The cut stems are prepared into cigarettes (No. 2) with cut stems without cut stems according to the proportion in the original formula and compared with the original cigarettes (No. 1), and the results are as follows:
| sample numbering | Whiteness of ash | Index of ash coagulation |
| 1# | 96.2 | 6.1 |
| 2# | 121.2 | 4.9 |
As can be seen from the above table, compared with the original cigarette sample, the whiteness and the ash condensation index of the cigarette produced by using the processed cut stems are obviously improved.
Compared with the comparative example 1, the cut stems treated by the method of the invention have more remarkable influence on the whiteness and the ash condensation index of cigarette ash, probably because the reduced pressure diffusion process can ensure that the glycerol penetrates more remarkably into the interior, so that the same amount of glycerol is more uniformly distributed in the cut stems, and the conditions of insufficient combustion, ash blackening and poor ash condensation index of partial positions caused by overhigh concentration of the glycerol are reduced. In addition, compared with natural diffusion, the reduced-pressure balanced diffusion is more beneficial to reducing the fragmentation rate.
Example 2
Soaking conventional expanded cut stem in 60 deg.C warm water for 20min, and drying with air flow drying process to water content of about 10%. Conveying the eluted and dried cut stems into a rotary drum, spraying glycerol accounting for 15 percent of the mass of the cut stems under the condition of continuous rotation, reducing pressure under 800mbar, balancing and diffusing for 20min, and taking out the cut stems to obtain the cut stem product capable of improving the whiteness of the cigarette ash.
The shredding rate of the cut stems obtained by the method is about 17 percent. The cut stems are prepared into cigarettes (No. 2) with cut tobacco without stems according to the proportion in the original formula, and compared with the original cigarettes (No. 1), the results are as follows:
| sample numbering | Whiteness of ash | Index of ash coagulation |
| 1# | 96.2 | 6.1 |
| 2# | 126.4 | 5.5 |
As can be seen from the table above, compared with the original cigarette sample, the whiteness and the ash condensation index of the cigarette ash produced by adopting the processed cut stems are obviously improved.
Example 3
Adding warm water of 50 ℃ into conventional expanded cut stems, soaking for 20min, repeating the soaking once again, and drying the cut stems by adopting an air flow drying process to control the water content of the cut stems to be about 9%. Conveying the eluted and dried cut stems into a rotary drum, spraying glycerol with the mass of 10% of that of the cut stems under the condition of continuous rotation, reducing pressure under 600mbar, balancing and diffusing for 30min, and taking out the cut stems to obtain the cut stem product capable of improving the whiteness of the cigarette ash.
The shredding rate of the cut stems obtained by the method is about 16 percent. The cut stems are prepared into cigarettes (No. 2) with cut stems without cut stems according to the proportion in the original formula and compared with the original cigarettes (No. 1), and the results are as follows:
| sample numbering | Whiteness of ash | Index of ash coagulation |
| 1# | 96.2 | 6.1 |
| 2# | 124.1 | 5.1 |
As can be seen from the table above, compared with the original cigarette sample, the whiteness and the ash condensation index of the cigarette ash produced by adopting the processed cut stems are obviously improved.
Example 4
Soaking conventional expanded cut stem in 60 deg.C warm water for 30min, and drying with air flow drying process to water content of about 20%. Conveying the eluted and dried cut stems into a rotary drum, spraying glycerol with the mass of 5% of that of the cut stems under the condition of continuous rotation, reducing pressure under 500mbar, balancing and diffusing for 20min, and taking out the cut stems to obtain the cut stem product capable of improving the whiteness of the cigarette ash.
The shredding rate of the cut stems obtained by the method is about 14 percent. The cut stems are prepared into cigarettes (No. 2) with cut stems without cut stems according to the proportion in the original formula and compared with the original cigarettes (No. 1), and the results are as follows:
| sample numbering | Whiteness of ash | Index of ash coagulation |
| 1# | 96.2 | 6.1 |
| 2# | 107.6 | 5.7 |
As can be seen from the table above, compared with the original cigarette sample, the whiteness and the ash condensation index of the cigarette ash produced by adopting the processed cut stems are obviously improved.
Example 5
Adding warm water of 50 ℃ into conventional expanded cut stems, soaking for 30min, repeating the soaking once again, and drying the cut stems by adopting an air flow drying process to control the water content of the cut stems to be about 9%. Conveying the eluted and dried cut stems into a rotary drum, spraying glycerol with the mass of 12% of the cut stems under the condition of continuous rotation, reducing pressure under 700mbar, balancing and diffusing for 30min, and taking out the cut stems to obtain the cut stem product capable of improving the whiteness of the cigarette ash.
The stalk shred crushing rate obtained by the method is about 18 percent. The cut stems are prepared into cigarettes (No. 2) with cut stems without cut stems according to the proportion in the original formula and compared with the original cigarettes (No. 1), and the results are as follows:
| sample numbering | Whiteness of ash | Index of ash coagulation |
| 1# | 96.2 | 6.1 |
| 2# | 117.3 | 5.3 |
As can be seen from the table above, compared with the original cigarette sample, the whiteness and the ash condensation index of the cigarette ash produced by adopting the processed cut stems are obviously improved.
Example 6
Soaking conventional expanded cut stem in 40 deg.C warm water for 20min, and drying with air flow drying process to water content of about 10%. Conveying the eluted and dried cut stems into a rotary drum, spraying glycerol with the mass of 8% of the cut stems under the condition of continuous rotation, reducing pressure under 700mbar, balancing and diffusing for 20min, and taking out the cut stems to obtain the cut stem product capable of improving the whiteness of the cigarette ash.
The shredding rate of the cut stems obtained by the method is about 13 percent. The cut stems are prepared into cigarettes (No. 2) with cut tobacco without stems according to the proportion in the original formula, and compared with the original cigarettes (No. 1), the results are as follows:
| sample numbering | Whiteness of ash | Index of ash coagulation |
| 1# | 96.2 | 6.1 |
| 2# | 114.6 | 5.3 |
As can be seen from the table above, compared with the original cigarette sample, the whiteness and the ash condensation index of the cigarette ash produced by adopting the processed cut stems are obviously improved.
Claims (3)
1. A cut stem processing method capable of improving whiteness of cigarette ash is characterized by comprising the following steps:
(1) dipping and eluting cut stems;
in the step (1), firstly, dipping and eluting the cut stems; then, drying the dipped and eluted cut stems by adopting an air flow drying process, and controlling the water content of the cut stems within 20 percent based on the mass percentage;
(2) repairing the cut stems subjected to dipping and elution treatment by using a repairing agent so as to recover the processing resistance strength of the cut stems;
in the step (2), conveying the dipped, eluted and dried cut stems into a rotary drum, spraying a certain amount of repairing agent on the surfaces of the cut stems under the condition of continuous rotation, wherein the adding amount of the repairing agent is 5-15% of the mass of the cut stems, and then performing pressure reduction and balanced diffusion for a certain time to recover the processing resistance strength of the cut stems; the repairing agent is selected from glycerol or propylene glycol, the pressure of reduced pressure equilibrium diffusion is controlled at 400mbar-800mbar, and the time of reduced pressure equilibrium diffusion is 20-40 min.
2. The cut stem processing method according to claim 1, wherein in the step (1), the cut stems are dipped and eluted in the eluent, the dipped and eluted cut stems are filtered, the amount of the eluent is determined that the cut stems are completely immersed in the eluent, and the temperature of the eluent is 40-60 ℃; the immersion elution time is 20-40min, and the immersion elution is carried out for 2-3 times; the drying temperature is 100-120 ℃.
3. The use of the cut stems treated by the cut stem treatment method according to claim 1, characterized in that the use of the cut stems in cigarettes can improve the whiteness of cigarette ash by 15-30 units and reduce the ash condensation index by 1-2 units.
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| CN110604336A (en) * | 2019-10-24 | 2019-12-24 | 湖北中烟工业有限责任公司 | Preparation process for applying atomizing agent to tobacco stems |
| CN110720652A (en) * | 2019-11-04 | 2020-01-24 | 湖北中烟工业有限责任公司 | Preparation method and application of cut stems with high concentration |
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2020
- 2020-11-26 CN CN202011348701.6A patent/CN112515232B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3251368A (en) * | 1962-07-12 | 1966-05-17 | Neurath Georg | Method of treating tobacco to improve its smoking properties and ash colour |
| US5730840A (en) * | 1996-11-14 | 1998-03-24 | Schwietzer-Mauduit Inernational, Inc. | Cigarette paper with improved ash characteristics |
| CN102697164A (en) * | 2012-06-18 | 2012-10-03 | 江苏智思机械集团有限公司 | Recombination processing method for tobacco stem shreds |
| CN103829364A (en) * | 2014-03-05 | 2014-06-04 | 上海烟草集团有限责任公司 | Salt coating liquid and application thereof in reconstituted tobacco |
| CN105725255A (en) * | 2016-03-23 | 2016-07-06 | 河南中烟工业有限责任公司 | Method for improving cigarette soot whiteness |
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