CN102715641B - Method for improving quality of reconstituted tobacco paper base and reconstituted tobacco paper base - Google Patents
Method for improving quality of reconstituted tobacco paper base and reconstituted tobacco paper base Download PDFInfo
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- CN102715641B CN102715641B CN201210190340.6A CN201210190340A CN102715641B CN 102715641 B CN102715641 B CN 102715641B CN 201210190340 A CN201210190340 A CN 201210190340A CN 102715641 B CN102715641 B CN 102715641B
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Abstract
The invention discloses a method for improving the quality of a reconstituted tobacco paper base and the reconstituted tobacco paper base and belongs to the technical field of cigarette production. The method for improving the quality of the reconstituted tobacco paper base comprises the steps of tobacco steam and tobacco powder soaking and extracting, pulp grinding, pulp beating, sheet making, pressing and drying. In the sheet making step, calcium carbonate accounting for 10 to 70 mass percent of the tobacco raw material pulp, wood pulp fiber accounting for 3 to 15 mass percent of the tobacco raw material pulp and guar gum accounting for 0.05 to 0.5 mass percent of the tobacco raw material pulp are added into the tobacco raw material pulp. The reconstituted tobacco paper base prepared by adopting the method provided by the invention has the advantages that the physical performance is obviously improved, the tar quantity, the CO (carbon monoxide) quantity and the total particle phase object quantity are obviously reduced, the tar reducing and harm reducing effects of reconstituted tobacco are more perfectly exerted, the physical performance, the chemical ingredients, the tensile index, the tearing index, the bulk thickness, the tightness, the ventilation performance, the filling value, the wetting performance and the seeping performance of the thin sheet paper base are effectively improved, and the operation performance and the effectiveness of a reconstituted tobacco production line are improved.
Description
Technical field
The present invention relates to production of cigarettes technical field, be specifically related to a kind of method and reconstituted tobacco paper substrate that improves reconstituted tobacco paper substrate quality.
Background technology
Adopting paper process production reconstituted tobacco to refer to first processes the offal in production of cigarettes process, offal and part discarded tobacco leaf and is processed into substrate (body paper) by papermaking process, substrate is through coating, oven dry, finally make the thin slice that approaches natural tobacco leaf, then be applied to a kind of advanced person's of production of cigarettes reconstituted tobacco production technology.The substrate of tobacco sheets by paper making method will add a certain amount of filler conventionally to improve paper substrate content of ashes and then to improve other physical properties in producing, as absorbent, appearance property etc., the use of filler can also reduce cost of material, and improves the sucking quality of substrate.
In the paper substrate of tobacco sheets by paper making method production at present, customary filler is winnofil (PCC), because the particle diameter of PCC is very little, at wire-cloths, run off serious, cause sheet paper base ash content on the low side, and paper substrate ash content on the low sidely brings absorbent, sucks the problems such as degradation and cost of material increase, add and still have now the manufacturer of a lot of tobacco sheets by paper making method to adopt traditional individual layer forming net, this makes above problem become more serious.
Research shows, makes used additives can improve filler-calcium carbonate retention in thin slice.Guar gum has good retention, drainage and enhancing effect, and application guar gum is copied paper substrate free from extraneous odour when burning of making and obtaining, can meet well the needs of cigarette paper using, in at present domestic Ge great cigarette paper plant, guar gum has replaced starch substantially becomes enhancing, retention, filter aid and paper surface properties improver.Meanwhile, wood fibre is because have good elasticity and intensity, becomes paper substrate conventional one of thing of dosing in producing.
Although research shows the use of dosing of wood fibre, calcium carbonate or auxiliary agent guar gum the performance on reconstituted tobacco paper substrate is produced to impact significantly, but, its combined influence mechanism does not understand, exist a lot of uncertain factors, stablize the technical scheme feasible, effect is clear and definite specifically applying middle shortage.For How to choose, determine and concrete dose thing technical scheme and in the research of dosing the respective application of auxiliary agent guar gum on thing technical scheme basis, to rest on experience accumulation and imagination stage more, all lack system and reasonably analyze and research, the rarely seen report of prior art.
Summary of the invention
The object of the invention is to overcome in existing cigarette reconstituted tobacco production technology about the above-mentioned deficiency of additive application technology, a kind of method of improving reconstituted tobacco paper substrate quality is provided.
Another object of the present invention is to provide the reconstituted tobacco paper substrate that above-mentioned improvement obtains to the method for tobacco leaf paper substrate quality again.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of method of improving reconstituted tobacco paper substrate quality, comprise that dipping extracts the step of offal and offal, defibrination, making beating, handsheet, pressing and drying, in handsheet step, to adding in tobacco material slurry, account for calcium carbonate that tobacco material slurry mass percent is 10～70%, 3～15% wood pulp cellulose and 0.05～0.5% guar gum.
Adding the impact of sheet paper base of wood pulp cellulose is very large, can effectively improve sheet paper base physical property.But adding of wood pulp, the deleterious that can cause cigarette to be smoked panel test, is mainly that wood pulp itself does not have the fragrance component in tobacco material, after wood pulp has added many, it is heavy that the xylon gas in flue gas becomes, and mouthfeel declines.So being added under the condition that meets sheet paper base intensity of wood pulp should be to stop in right amount, through great many of experiments in early stage, final choice 3 ~ 15% these optimum ranges.
In the above-mentioned method of improving reconstituted tobacco paper substrate quality, preferably in handsheet step, to adding in tobacco material slurry, account for calcium carbonate that tobacco material slurry mass percent is 40 ~ 60%, 3～12% wood pulp cellulose and 0.1～0.28% guar gum.Wherein the optimum addition of each composition is: account for calcium carbonate that tobacco material slurry mass percent is 50%, 6% wood pulp cellulose and 0.25% guar gum.
The above-mentioned concrete steps of improving the method for reconstituted tobacco paper substrate quality are: wood pulp cellulose (in proportion) adds in tobacco material, under the condition that is 2% at solid content, with standard fluffer, discongest, and then to be mixed with solid content be 0.5%～1.0% slurry, finely dispersed in the situation that, add while stirring calcium carbonate aqueous solution, continue stirring and add aqueous guar glue solution after 30 seconds, continue to stir rapid handsheet after 1 minute.
The reconstituted tobacco paper substrate that the above-mentioned method of improving reconstituted tobacco paper substrate quality prepares.
Compared with prior art, the present invention has following beneficial effect:
The present invention is from the additive technical scheme of reconstituted tobacco paper substrate, the t95 value based on paper substrate, Max value, Cobb30 value, the performance parameters such as Cobb60 value, comprehensive analysis and summed up the physical strength of reconstituted tobacco paper substrate, permeance property, absorbent, combustibility, the consumption of offal and offal in Cigarette, sheet paper base tar content, CO amount, TPM, the composite indexes such as puff number, systematically provide guar gum, the comprehensive adding technique scheme of calcium carbonate and wood fibre, the tensile index of the reconstituted tobacco paper substrate preparing, tear index, air permeability be improved significantly, the whole absorbent of reconstituted tobacco paper substrate rises, the tar content of sheet paper base, CO amount, TPM content significantly declines, and brings into play better the effect of reconstituted tobacco reducing tar and reducing harm, effectively improves the physical property of thin section for tobacco paper substrate, chemical composition, tensile index, tear index, bulk, tightness, permeability, filling value, wetability and permeance property, comprehensively improve surface property and the internal structure of sheet paper base, improves runnability and the validity of reconstituted tobacco production line.For improving the quality of reconstituted tobacco, provide technical support.
Accompanying drawing explanation
Fig. 1 calcium carbonate particle size distribution figure.
Fig. 2 does not add CaCO
3the cross section SEM figure of sheet paper base.
Fig. 3 adds 50%CaCO
3the cross section SEM figure of sheet paper base.
Fig. 4 wood-pulp board fibre-diagram.
Wood pulp cellulose staple diagram after Fig. 5 pulls an oar.
The impact of Fig. 6 wood pulp consumption on tensile index and tear index, wherein curve 1 represents tensile index curve, curve 2 represents tear index curve.
Fig. 7. the surperficial SEM figure of wood-pulp board fiber, wherein a1 be 500 *, a2 is 100 *.
Fig. 8. wood-pulp board fiber surface SEM figure after making beating, wherein b1 be 500 *, b2 is 100 *.
Fig. 9. 3% wood pulp cellulose sheet paper base surface SEM figure, wherein c1 be 500 *, c2 is 100 *.
Figure 10. 6% wood pulp cellulose sheet paper base surface SEM figure, wherein d1 be 500 *, d2 is 100 *.
Figure 11. 9% wood pulp cellulose sheet paper base surface SEM figure, wherein e1 be 500 *, e2 is 100 *.
Figure 12. 12% wood pulp cellulose sheet paper base surface SEM figure, wherein f1 be 500 *, f2 is 100 *.
Figure 13. 15% wood pulp cellulose sheet paper base surface SEM figure, wherein g1 be 500 *, g2 is 100 *.
Figure 14. wood pulp cellulose and the rear wood pulp cellulose cross section SEM figure of making beating, wherein a is wood pulp cellulose (300 *), b is wood pulp cellulose (300 *) after making beating.
Figure 15. 3% wood pulp cellulose sheet paper base (300 *) cross section SEM figure.
Figure 16. 6% wood pulp cellulose sheet paper base (300 *) cross section SEM figure.
Figure 17. 9% wood pulp cellulose sheet paper base (300 *) cross section SEM figure.
Figure 18. 12% wood pulp cellulose sheet paper base (300 *) cross section SEM figure.
Figure 19. 15% wood pulp cellulose sheet paper base (300 *) cross section SEM figure.
Figure 20. 6% wood pulp cellulose/0% CaCO
3sheet paper base surface SEM figure, wherein a1 be 500 *, a2 is 100 *.
Figure 21. 6% wood pulp cellulose/30% CaCO
3sheet paper base surface SEM figure, wherein b1 be 500 *, b2 is 100 *.
Figure 22. 6% wood pulp cellulose/50% CaCO
3sheet paper base surface SEM figure, wherein c1 be 500 *, c2 is 100 *.
Figure 23. 6% wood pulp cellulose/70% CaCO
3sheet paper base surface SEM figure, wherein d1 be 500 *, d2 is 100 *.
Figure 24. 6% wood pulp cellulose and different amount CaCO
3sheet paper base cross section SEM figure, wherein a is 0% CaCO
3, b is 30% CaCO
3, c is 50% CaCO
3, d is 70% CaCO
3.
The specific embodiment
Below in conjunction with embodiment, further explain the present invention, but the present invention is not done to any type of restriction, in embodiment, if no special instructions, be this area normal experiment technological means.
Experiment uses key instrument equipment and reagent and method as follows:
Electric cooking pot (plain edition) ZT1-00/15L(Xingping City Zhong Tong rig for testing Co., Ltd produces); KRK-2500 II high-density paste mill (Japanese KRK company); The quick handshcet former of PTI (Austria); The square squeezer of KRK-2570 (Japanese KRK company); Infiltration kinetic analyzer Penetration Dynamics Analyzer(PDA.C 02 Module Standard, Module HVL, EST12) (German EMTEC company); Kajaani FS300 fiber quality analyzer; SEM (Hitachi S-3700N); Fluffer (Ao great Li Lai PTI company); Tensile strength instrument (Sweden Lorentzen & Wettre company); Air permeability instrument (Sweden Lorentzen & Wettre company); Tearability instrument (Sweden Lorentzen & Wettre company); Laser particle size analyzer Mastersize2000(Britain MALVERN company); Paper and cal(l)iper instrument (ZBH-4 type); Linear pattern smoking machine (Britain Cerulean company); HP6890 gas chromatograph (band automatic sampling apparatus) (U.S. Anjelen Sci. & Tech. Inc); Assay balance (sensibility reciprocal 0.0001g).
Wood fibre, guar gum, calcium carbonate are commercial and import.
In following examples, if no special instructions, be the conventional preparation technology in this area.
embodiment 1 conventional method is prepared reconstituted tobacco paper substrate
(1) dipping extracts offal and offal respectively;
Dipping extracts offal and offal respectively.The condition that described offal dipping extracts is solid-liquid ratio 1:7(mass ratio), to extract temperature be 60 ℃, extraction time is 100 minutes (min); The condition that described offal dipping extracts is that solid-liquid ratio is 1:10, extracts temperature 70 C, extraction times 60 min; The offal obtaining after impregnation process and the extract of offal carry out conventional evaporation and concentration according to the volume ratio mixing of 1:1 and obtain coating fluid; Offal after impregnation process, offal solid are used for defibrination.
(2) defibrination; Offal after impregnation process, offal carry out two sections of defibrinations, and refining concentration adopts 20%.
(3) PFI making beating: the slurry after defibrination adopts PFI mill (Mark VI NO.621) to pull an oar, and the beating consistency of offal, offal is 10%, and beater roll(er) is 0.2mm with beating gap, chamber, and beating pressure is 3.33Nmm
-1, the beating degree of offal is 26
osR, the beating degree of offal is 45
osR.The beating consistency of wood fibre slurry is 10%, and beater roll(er) is 0.2mm with beating gap, chamber, and beating pressure is 3.33Nmm
-1, beating degree is 33
osR.The beating degree of making beating disposed slurry is measured and is adopted Xiao Baier-Rui Gele YQ-Z-13 beating degree analyzer to measure.
(4) slurry mixes: offal and offal, through after dipping defibrination, are mixed to get tobacco mixed slurry by offal slurry and the offal ratio that is 70:30 according to mass ratio of starching.Wood pulp cellulose adds in tobacco mixed slurry in proportion, under the condition that is 2%, discongests at solid content, mixes.Add running water dilution and stir, be uniformly dispersed.
(5) handsheet; Adopt the quick handshcet former of PTI kayser method to carry out handsheet.
(6) pressing and drying obtains sheet paper base;
The pressure of described squeezing is 0.1MPa, is about 7 min left and right the total time of squeezing; Described dry temperature is 105 ℃, and the dry time is not done strict restriction, guarantees the dried reconstituted tobacco paper substrate that obtains of reconstituted tobacoo paper substrate.
(7) coating fluid step (1) being prepared returns and is coated onto on reconstituted tobacco paper substrate, obtains reconstituted tobacoo.
embodiment 2the research experiment of calcium carbonate granule
Take calcium carbonate powder, adding water, to be mixed with mass percentage concentration be that 0.0016% calcium carbonate is molten, carries out grain size analysis, and calcium carbonate particle size distribution analysis the results are shown in Figure 1.
From accompanying drawing 1, paper grade (stock) calcium carbonate itself is not the particle of spheroidal, its diameter does not represent the absolute diameter on ordinary meaning, what it represented is a distribution situation, from a higher limit, change to continuously the integral curve of a lower limit, the diameter here can only be the assembly average of all changes value.Grain diameter value is not unique, and its instrument and statistical method used with measurement is relevant.No matter apply the particle size analyzer (laser or sedimentation) of which kind of principle, all can not go to measure and allly by center of gravity, connect the distance between 2 of particle surfaces, so claim that measured particle diameter is equivalent grain size.Equivalent grain size represents with volume average particle size D (4,3) and surface area average grain diameter D (3,2), generally uses traditionally volume average particle size to provide numerical value.
In granularity graph, provide the explanation of parameter: the figure in grain size analysis report is differential distribution map (being frequency distribution map), but not cumulative distribution table; Volume average particle size D (4,3) and surface area average grain diameter D (3,2) represent respectively the weighted average of particle diameter to volume (quality) and surface area.
The volume that d (0.1) expression particle diameter is less than the particle of d (0.1) accounts for 10% of cumulative volume;
D (0.5) represents that particle diameter is less than it and is greater than 50% (being meso-position radius) that its particle volume respectively accounts for cumulative volume;
The volume that d (0.9) expression particle diameter is less than the particle of d (0.9) accounts for 90% of cumulative volume.
Span represents relative width and the degree of irregularity of size distribution.Specifically be expressed as:
Span=[d (0.9)-d (0.1)]/d (0.5);
Uniformity is measured for the absolute deviation with respect to mean value.
Calcium carbonate granularity figure overall distribution is narrow, span little (1.037), peak value high (13.67), the large (2.26m of specific area
2/ g), maximum particle size is 8.71 μ m, and even particle size distribution is described.
embodiment 3 adds the impact of different amount guar gums on reconstituted tobacco paper substrate quality
By embodiment 1 step, prepare reconstituted tobacco paper substrate, wherein step (4) adds running water by tobacco mixed slurry, being mixed with solid content is the tobacco slurry suspension of 0.5 wt.%, be uniformly dispersed, (concentration is 20g/L under stirring at low speed, to add wherein calcium carbonate aqueous solution, agitating solution mixes it), making the carbonic acid that adds, calcareous to make its quality percentage composition final in mixed slurry be 50%.Stir 30s, add guar gum suspension, continue to stir 1min, rapid handsheet, other steps are with embodiment 1.Wherein the addition of guar gum is increased to 1.5%(in guar gum final quality percentage composition mixed slurry from 0%), prepare multiple reconstituted tobacco paper substrate (sheet paper base).As follows to sheet paper base measuring physical properties result:
Different guar gum consumptions on the impact of paper substrate physical property in Table 1
Table 1
Note: CaCO
3consumption is 50%.
The consumption of guar gum is increased to 1.5% from 0%, from the ash of sheet paper base, assigns to, and the ash content of sheet paper base is increased to 16.67% from 4.14%, and the content of ashes of sheet paper base changes greatly, and content of ashes has increased by 12.53%.Explanation under experiment condition, the consumption of guar gum to calcium carbonate in sheet paper base to keep influential effect larger.As can also be seen from Table 1, when the consumption of guar gum is 0.5%, the tensile strength of sheet paper base is 1.19 kN/m, and tear index is 1.65 mNm
2/ g, bulk is 1.84 cm
3/ g, the ash content of sheet paper base has reached 15.21%; The consumption to 1.5% that continues to increase guar gum, the tensile strength of sheet paper base is increased to 1.28 kN/m from 1.19 kN/m, and tear index has only increased by 0.09 mNm
2/ g, bulk is from 1.84 cm
3/ g drops to 1.77 cm
3/ g, the air permeability 0.18 μ m/ (Pas) that risen, and also the ash content of sheet paper base only increased by 1.46%, illustrates that 0.5% guar gum consumption is enough.Therefore, under experiment condition, guar gum consumption increases, and little to the ash content contribution of sheet paper base, the intensity index of sheet paper base increases to some extent, and the bulk of sheet paper base and permeability rise slightly to some extent along with the increase of ash content.From a large amount of experimental results in conjunction with the applicability of effect and cost calculation and actual production, the quality that the addition that sums up guar gum is tobacco slurry 0.05%～0.5% time, can produce significant experiment effect.
2. the impact of different guar gum consumptions on paper substrate permeance property
Wetability Max refers to that reconstituted tobacoo paper substrate is reached the time after the highest by complete wetting and signal strength signal intensity, and it is along with liquid increases in the increase of the paper surface time of staying.The present embodiment be take water as test liquid, and Max value is larger, represents that the water repelling property of sheet paper base is better.The time that characteristic value t95 is experienced when to be pattern reached 95% by Liquid Penetrant and signal strength signal intensity, it is to using the aqueous solution as test liquid, now the permeability of pattern is only subject to the impact of paper pore structure, hole is more greatly or when more open, aqueous solution infiltration is faster, t95 value is larger, represents that the surface porosity of sheet paper base is less, and anti-permeability performance is better.
The surface texture of sheet paper base, permeance property and absorbent have very important impact to the follow-up painting process of sheet paper base.The present invention sums up that to obtain the permeance property of the reconstituted tobacoo paper substrate of gained under different guar gum consumption conditions as shown in table 2.
The impact of table 2 guar gum consumption on sheet paper base permeance property
| Guar gum consumption/% | 0 | 0.1 | 0.2 | 0.25 | 0.28 | 0.3 | 0.50 | 0.6 | 0.75 | 1.00 | 1.50 |
| Max/s | 0.102 | 0.116 | 0.121 | 0.129 | 0.138 | 0.147 | 0.185 | 0.213 | 0.261 | 0.293 | 0.433 |
| Cobb30/g·m -2 | 26.7 | 26.0 | 25.4 | 25.2 | 24.8 | 24.5 | 23.9 | 23.5 | 23.1 | 20.9 | 12.7 |
| Cobb60/g·m -2 | 29.0 | 28.5 | 28.1 | 27.9 | 27.7 | 27.4 | 26.7 | 26.5 | 26.3 | 24.8 | 15.7 |
| t95/s | 0.097 | 0.253 | 0.362 | 0.449 | 0.473 | 0.497 | 0.541 | 0.82 | 1.018 | 1.048 | 1.482 |
T95 value has characterized the surface pore structure of sheet paper base, from table 2, when guar gum consumption is 0%, t95 value minimum (0.097 s), illustrate that now the surface porosity of sheet paper base is maximum, t95 value increases gradually along with the increase of guar gum consumption, reduce gradually the surface pore of sheet paper base, when guar gum consumption is 1.5%, t95 value maximum (1.482 s), illustrate that now the surface porosity of sheet paper base is minimum, this is because guar gum consumption increases, promoted the combination between fiber and fiber in paper, the calcium carbonate quantity of keeping in sheet paper base and the amount of fiber fines increase, calcium carbonate and fiber fines that the space on sheet paper base surface is kept cover, thereby obtained the relatively sheet paper base surface texture of sealing, be unfavorable for that liquid is penetrated into inside from sheet paper base surface.
As can be seen from Table 2, wetability Max value and t95 value present close Changing Pattern, all along with the increase of guar gum consumption, are increase trend.When guar gum consumption is 0%, Max value minimum (0.102 s), represents that the permeance property of sheet paper base is best; When guar gum consumption is 1.5%, Max value maximum (0.433 s), guar gum consumption increases, and guar gum has the effect of similar glue, and the combination between fiber and fiber is become closely, and the permeance property of sheet paper base is phase strain differential also.
Under different guar gum consumptions, Cobb30 value and the Cobb60 value of sheet paper base are as shown in table 2.Cobb30 value and Cobb60 value present close Changing Pattern, all along with the increase of guar gum consumption, present reduction trend.When guar gum consumption is 0%, the water absorbing properties of sheet paper base is maximum, and Cobb30 value and Cobb60 value are respectively 26.7 g/m
2with 29.0 g/m
2; When guar gum consumption is 1.5%, Cobb30 value and the Cobb60 value of sheet paper base drop to respectively 12.7g/m
2with 15.7 g/m
2, the water absorbing properties of sheet paper base obviously declines.
embodiment 4 adds the impact of different amount calcium carbonate on reconstituted tobacco paper substrate quality
By embodiment 1 step, prepare reconstituted tobacco paper substrate, wherein step (4) adds running water by tobacco mixed slurry, being mixed with solid content is the tobacco slurry suspension of 0.5 wt.%, be uniformly dispersed, under stirring at low speed, add wherein calcium carbonate aqueous solution (concentration is 20g/L, and agitating solution mixes it).Stir 30s, adding guar gum suspension to make guar gum final quality percentage composition in mixed slurry is 0.25%, continues to stir 1min, rapid handsheet, and other steps are with embodiment 1.Wherein the addition of calcium carbonate is increased to 75%(in calcium carbonate final quality percentage composition mixed slurry from 10%), prepare multiple reconstituted tobacco paper substrate (sheet paper base).As follows to sheet paper base measuring physical properties result:
1. the impact of different calcium carbonate consumptions on paper substrate physical property
Table 3
| Calcium carbonate consumption/% | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 75 |
| Tensile index/Nmg -1 | 20.75 | 20.61 | 20.03 | 17.93 | 15.83 | 14.57 | 14.01 | 13.04 |
| Tensile strength/kNm -1 | 1.45 | 1.44 | 1.38 | 1.29 | 1.18 | 1.02 | 0.98 | 0.91 |
| Tear index/mNm 2·g -1 | 1.73 | 1.66 | 1.61 | 1.57 | 1.47 | 1.43 | 1.41 | 1.37 |
| Bulk/cm 3·g -1 | 1.81 | 1.83 | 1.89 | 1.89 | 1.91 | 1.92 | 1.92 | 1.94 |
| Tightness/gcm -3 | 0.55 | 0.55 | 0.53 | 0.53 | 0.52 | 0.51 | 0.51 | 0.50 |
| Air permeability/μ mPa -1·s -1 | 0.13 | 0.14 | 0.16 | 0.31 | 0.50 | 0.58 | 0.63 | 0.69 |
| Ash content/% | 8.98 | 10.19 | 11.75 | 13.58 | 15.17 | 15.43 | 16.04 | 16.58 |
From table 3, CaCO
3addition is increased to 50% from 10%, and the ash content of sheet paper base is increased to 15.17% from 8.98%, and ascensional range reaches 6.19%, and CaCO is described
3addition has larger impact to the ash content of sheet paper base, thereby causes the physical property of sheet paper base also to change thereupon.CaCO
3addition is increased to 50% from 10%, and the tensile strength of sheet paper base drops to 1.18 kN/m from 1.45 kN/m, tear index 0.26 mNm that declined
2/ g, bulk is from 1.81 cm
3/ g rises to 1.91 cm
3/ g, the air permeability 0.37 μ m/ (Pas) that risen.Therefore, CaCO
3addition increases, and the intensity index of sheet paper base declines gradually, and bulk and the air permeability of sheet paper base rise slightly.When the consumption of calcium carbonate is increased to 70% from 50%, the ash content of sheet paper base is increased to 16.58% from 15.17%, has only increased by 1.41%, and the amplitude of increase is very little; And the increase of calcium carbonate consumption, the tensile strength of sheet paper base, tensile index and tear index equal strength index constantly decline, and bulk and the air permeability of sheet paper base rise slightly.Comprehensively above-mentioned, when calcium carbonate consumption is 50%, can obtain and keep preferably effect, now sheet paper base still can keep good intensity index.
2. the impact of different calcium carbonate consumptions on sheet paper base permeance property
Table 4
| CaCO 3Consumption/% | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 75 |
| Max/s | 0.333 | 0.305 | 0.281 | 0.281 | 0.274 | 0.271 | 0.268 | 0.257 |
| Cobb30/g·m -2 | 16.8 | 18.8 | 19.3 | 23.3 | 24.5 | 24.9 | 25.6 | 25.8 |
| Cobb60/g·m -2 | 21.3 | 23.1 | 23.3 | 26.6 | 26.8 | 27.4 | 27.9 | 28.2 |
| t95/s | 1.190 | 1.162 | 0.983 | 0.840 | 0.449 | 0.357 | 0.319 | 0.302 |
From table 4, work as CaCO
3when consumption is 10%, t95 value maximum (1.190 s), illustrates that now the surface porosity of sheet paper base is minimum, and t95 value is along with CaCO
3the increase of consumption and reducing gradually, the surface pore of sheet paper base increases gradually, works as CaCO
3when consumption is 50%, t95 value has dropped to 0.449 s, illustrates that now the surface porosity of sheet paper base is larger, and this is because CaCO
3consumption increases, CaCO
3keep between the fiber of sheet paper base and fiber and the surface of sheet paper base, the calcium carbonate quantity that sheet paper base surface is kept is increased, calcium carbonate is conducive to produce more many holes on sheet paper base surface, thereby obtained more open sheet paper base surface texture, be conducive to liquid and be penetrated into inside from sheet paper base surface.Calcium carbonate consumption is increased to 75% from 50%, and calcium carbonate not keeping in sheet paper base is significantly increased, and the content of ashes of sheet paper base changes little, the variation of t95 value is also little, by 0.449 s, drop to 0.302 s, the surface pore of sheet paper base continues to increase, but changes little.
As can be seen from Table 4, wetability Max value and t95 value present close Changing Pattern, all along with CaCO
3the increase of consumption and on a declining curve.Work as CaCO
3when consumption is 10%, Max value maximum (0.333 s), represents that the permeance property of sheet paper base is the poorest; CaCO
3when consumption is 50%, Max value has been down to 0.274 s, continues to increase the consumption to 75% of calcium carbonate, and the Max value of sheet paper base continues to drop to 0.257, changes little.CaCO
3consumption increases, CaCO
3keep between the fiber of sheet paper base and fiber and the surface of sheet paper base, increased the distance between fiber and fiber, make the structure of sheet paper base become loose, improved the permeance property of sheet paper base.
Different Ca CO
3under consumption, the Cobb30 value of sheet paper base and Cobb60 value are as shown in table 4.Cobb30 value and Cobb60 value present close Changing Pattern, all along with CaCO
3the increase of consumption and increasing.Work as CaCO
3when consumption is 10%, the water absorbing properties of sheet paper base is minimum, and Cobb30 value and Cobb60 value are respectively 16.8 g/m
2with 21.3 g/m
2; Work as CaCO
3when consumption is 50%, Cobb30 value and the Cobb60 value of sheet paper base rise to respectively 24.5 g/m
2with 26.8 g/m
2, the absorbent of sheet paper base improves, and when the consumption of calcium carbonate is 75%, Cobb30 value and the Cobb60 value of sheet paper base are respectively 25.8 g/m
2with 28.2 g/m
2, while being 50% than calcium carbonate consumption, increase not obvious.
3. sheet paper base is carried out to scanning electron microscope analysis
Accompanying drawing 2 and accompanying drawing 3 are respectively not add fills out CaCO
3sheet paper base is filled out 50%CaCO with adding
3the cross section SEM figure of sheet paper base.From accompanying drawing 2 and accompanying drawing 3, do not add and fill out CaCO
3inside visible significantly offal and the offal fiber combinations of sheet paper base, form more interlayer hole between tobacco stalk fibre and offal fiber.Add and fill out CaCO
3afterwards, the bulk of sheet paper base changes little, and the interlayer hole of sheet paper base is by CaCO
3institute fills, and has formed new pore structure, and the new hole forming is less.Add and fill out CaCO
3afterwards, owing to keeping in the CaCO of sheet paper base inside
3between exist hole, be conducive to passing through and the infiltration of liquid of air, therefore, air permeability and the permeance property of sheet paper base make moderate progress.
4. pair sheet paper base carries out flue gas analysis
Table 5 sheet paper base flue gas analysis result
| Sheet paper base | Do not add and fill out | Add and fill out 40%CaCO 3 | Add and fill out 50%CaCO 3 | Add and fill out 60%CaCO 3 | Add and fill out 70%CaCO 3 |
| Tar/mg | 13.46 | 11.23 | 10.19 | 9.5 | 9.3 |
| TPM/mg | 16.30 | 14.18 | 12.51 | 11.25 | 11.25 |
| Puff number/Puffs | 6.13 | 5.6 | 5.30 | 4.9 | 4.8 |
| Actual measurement moisture content/mg | 2.81 | 2.25 | 2.31 | 2.02 | 2.09 |
| Nicotine/mg | 0.03 | 0.02 | 0.02 | 0.02 | 0.02 |
| Carbon monoxide/mg | 25.67 | 23.72 | 22.91 | 20.3 | 20.1 |
Table 5 is filled out 50%CaCO for adding
3the flue gas analysis result of front and back sheet paper base.Flue gas analysis adopts the art conventional method, and the present embodiment carries out chopping by sheet paper base, then carries out craft and beats cigarette, adopts linear pattern smoking machine (Britain Cerulean company) to carry out flue gas analysis.From table 5, add and fill out 50%CaCO
3after, reduced the consumption of offal and offal in Cigarette, improved the combustibility of sheet paper base, made the tar content of sheet paper base and CO amount decline respectively 24.29% and 10.75%, TPM is propped up and is dropped to 12.51 mg/ and prop up by 16.30 mg/, and puff number also drops to 5.30 by 6.13.Add and fill out 70% CaCO
3after, the tar content of sheet paper base and CO amount are down to respectively 9.3 mg and 20.1 mg, and TPM is also down to 11.25 mg, but and 50%CaCO
3during consumption, compare, tar content, CO amount and TPM decline and are little.As can be seen here, add and fill out CaCO
3after, effectively reduced tar content and the CO amount in sheet paper base, meanwhile, TPM amount and puff number also have decline in various degree.
Using guar gum as retention agent, sheet paper base is added and fills out CaCO
3the result of studying shows, the increase of guar gum consumption, and the physical strength of sheet paper base increases, and when adding, fills out 50%CaCO
3time, guar gum consumption is 0.25% reasonable, the t95 value of sheet paper base, Max value, Cobb30 value, Cobb60 value are respectively 0.449s, 0.129s, 25.2g/m
2with 27.9 g/m
2, along with guar gum consumption increases, the permeance property of sheet paper base and absorbent decline.Guar gum consumption is 0.25%, along with CaCO
3the increase of consumption, the physical strength of sheet paper base declines gradually, and permeance property and the absorbent of sheet paper base rise gradually, add and fill out 50%CaCO
3after, reduced the consumption of offal and offal in Cigarette, significantly improve the combustibility of sheet paper base, make tar content and the CO amount of sheet paper base decline respectively 24.29% and 10.75%, TPM is propped up and is dropped to 12.51 mg/ and prop up by 16.30 mg/, puff number also drops to 5.30 by 6.13, and the physical strength of sheet paper base, permeance property and absorbency are more satisfactory.
embodiment 5 adds the impact of wood pulp on sheet paper base
1. wood pulp cellulose quality analysis
The wood pulp cellulose quality obtaining after commercial wood-pulp board fiber making beating is analyzed, compared simultaneously with two groups of tobacco stalk fibres are set, result is as shown in table 6.Wood pulp cellulose distribution of lengths after wood-pulp board fiber and making beating is as shown in accompanying drawing 4 and accompanying drawing 5.
Table 6 Kajaani FS300 fibre analysis
| Raw material | Wood-pulp board fiber | Wood pulp cellulose after making beating | Tobacco stalk fibre | Tobacco stalk fibre |
| Beating degree/ oSR | 13 | 33 | 16 | 23 |
| The equal length L n/mm of number | 0.53 | 0.38 | 0.33 | 0.30 |
| Weight average length Lw/mm | 2.67 | 2.35 | 0.88 | 0.77 |
| Double weight average length Lww/mm | 1.82 | 1.37 | 1.79 | 1.41 |
| Fines (n) content/% | 58.03 | 60.21 | 45.65 | 47.30 |
| Fines (l) content/% | 9.78 | 13.78 | 11.37 | 12.53 |
| Rugosity/mgm -1 | 0.324 | 0.112 | 0.137 | 0.136 |
| Fiber curl/% | 18.6 | 15.6 | 14.3 | 14.0 |
From table 6, the fiber weight average length (Lw) of wood-pulp board is 2.67mm, and after making beating, beating degree is 33
osR, the weight average length of wood pulp cellulose is 2.35 mm, and the weight average length of fiber has shortened 0.32mm, illustrates that wood pulp cellulose is in pulping process, and fibre length has certain loss.But compare with tobacco stalk fibre, the fiber weight average length of tobacco stalk fibre is that 0.88 mm(beating degree is 16
osR) and 0.77 mm(beating degree is 23
osR), the wood pulp cellulose Length Ratio tobacco stalk fibre length after this explanation making beating still exceeds a lot.
2. add the impact of wood pulp on reconstituted tobacco paper substrate physical property
By embodiment 1 step, prepare reconstituted tobacco paper substrate, wherein step (4) adds running water by tobacco mixed slurry, being mixed with solid content is the tobacco slurry suspension of 0.5 wt.%, be uniformly dispersed, under stirring at low speed, add wherein to add respectively and account for tobacco slurry mass percent and be respectively 2%, 3%, 6%, 9%, 12%, 15% and 20% wood pulp cellulose, other steps, with embodiment 1, prepare reconstituted tobacco paper substrate.
(1) different wood pulp consumptions on sheet paper base physical property to affect testing result as shown in table 7.
The impact of the different wood pulp consumptions of table 7 on paper substrate physical property
From table 7, owing to having added the good wood pulp cellulose of intensity and length, after making beating, tensile index and the tear index of wood pulp cellulose have reached 37.40 Nm/g and 9.09mNm
2/ g, so the tensile index of sheet paper base and tear index are all ascendant trend faster along with the increase of wood pulp consumption, is shown in shown in accompanying drawing 6.The tensile index and the tear index that do not add the sheet paper base of wood pulp are 11.65 Nm/g and 1.14 mNm
2/ g, when wood pulp addition is 3%, the tensile index of sheet paper base and tear index rise to 12.22 Nm/g and 1.42 mNm
2/ g, the strength character of sheet paper base increases slightly; When the addition of wood pulp is 6%, the tensile index of sheet paper base and tear index rise to 14.29 Nm/g and 1.90 mNm
2/ g, the strength character of sheet paper base be improved significantly; When wood pulp addition is 15%, the tensile index of sheet paper base and tear index rise to 19.76 Nm/g and 2.85 mNm
2/ g, the strength character of sheet paper base is significantly improved.
Because the rugosity of wood-pulp board fiber is 0.324 mg/m(table 6), the rugosity value of fiber is very high, and from table 6, wood-pulp board fiber becomes the bulk of paper also very high, is 3.05 cm
3/ g; After making beating, the rugosity of wood pulp cellulose and bulk all decline to some extent, are respectively 0.112 mg/m and 2.15 cm
3/ g, when this explanation making beating allows fiber wire-dividing broom purification, the rugosity of fiber also declines simultaneously.The bulk of not adding the sheet paper base of wood pulp is 2.36 cm
3/ g, exceeds 0.21 cm than the bulk of wood pulp cellulose after making beating
3/ g.As can be seen from Table 7, the addition of wood pulp is increased to 20% from 2%, the bulk of sheet paper base there is no variation, and main cause is that after making beating, wood pulp cellulose becomes the bulk of paper slightly lower than the bulk of sheet paper base, so it is afterwards little on the impact of sheet paper base to cause adding wood pulp.
From table 7, after making beating, the air permeability of wood pulp is 11.80 μ m/Pas, and the air permeability that does not add the sheet paper base of wood pulp cellulose is 2.34 μ m/Pas, and as can be seen here, the air permeability of wood pulp exceeds 9.46 μ m/Pas than the air permeability of sheet paper base.When the addition of wood pulp in sheet paper base is 3%, the air permeability of sheet paper base is 2.56 μ m/Pas, the air permeability of sheet paper base increases slightly to some extent, when the addition of wood pulp in sheet paper base is 6%, the air permeability of sheet paper base is 3.37 μ m/Pas, the air permeability of sheet paper base has increased by 44.02%, and the air permeability of sheet paper base significantly increases.
(2) the affect testing result of different wood pulp consumptions on sheet paper base permeance property
The impact of table 8 wood pulp consumption on sheet paper base permeance property
| Wood pulp consumption/% | Wood pulp after making beating | 0 | 2 | 3 | 6 | 9 | 12 | 15 | 20 |
| Max/s | 0.041 | 0.197 | 0.196 | 0.193 | 0.169 | 0.141 | 0.129 | 0.057 | 0.052 |
| Cobb30/g·m -2 | 27.9 | 26.7 | 26.7 | 26.7 | 26.8 | 27.3 | 27.3 | 27.5 | 28.0 |
| Cobb60/g·m -2 | 29.6 | 28.4 | 28.6 | 28.9 | 29.0 | 29.1 | 29.2 | 29.5 | 29.8 |
| t95/s | 0.012 | 0.960 | 0.730 | 0.619 | 0.602 | 0.520 | 0.431 | 0.412 | 0.392 |
Characteristic value t95 characterizes the porosity on sheet paper base surface, and as can be seen from Table 8, after making beating, the t95 value of wood pulp is very little, be 0.012 s, after making beating is described, wood pulp cellulose has good elasticity, becomes the porosity on paper surface very high, is very beneficial for Liquid Penetrant to page inside.Do not add the sheet paper base t95 value maximum (0.960 s) of wood pulp, when wood pulp addition is 3%, the t95 value of sheet paper base is 0.619 s, when the addition of wood pulp is 15%, the t95 value of sheet paper base is 0.412 s, along with the increase of wood pulp addition, the t95 value of sheet paper base declines gradually, illustrate that wood pulp adds in sheet paper base, be conducive to sheet paper base surface and obtain more open surface texture, be conducive to liquid and be penetrated into sheet paper base inside from sheet paper base surface.
Wetability Max refers to that reconstituted tobacoo paper substrate is reached the time after the highest by complete wetting and signal strength signal intensity, and it is along with liquid increases in the increase of the paper surface time of staying.After making beating, the Max value of wood pulp is very little, is 0.041 s, illustrate that wood pulp has increased in the adhesion between fiber and fiber afterwards of pulling an oar, but wood pulp cellulose becomes the permeance property of paper should be very.As can be seen from Table 8, wetability Max value and t95 value present close Changing Pattern, all along with the increase of wood pulp addition, are increase trend.The sheet paper base Max value maximum (0.197 s) of not adding wood pulp, represents that the permeance property of sheet paper base is the poorest; When wood pulp addition is 6%, Max value drops to 0.169 s, when wood pulp addition increases to 15%, Max value minimum (0.057 s), wood pulp addition increases, and is conducive to form between fiber and fiber more loose pore structure, corresponding the improving of permeance property of sheet paper base.
Under different wood pulp addition conditions, Cobb30 value and the Cobb60 value of sheet paper base are as shown in table 8.After making beating, Cobb30 value and the Cobb60 value of wood pulp are the highest, are respectively 27.9 g/m
2with 29.6 g/m
2.From table 8, Cobb30 value and Cobb60 value present close Changing Pattern, all along with the increase of wood pulp addition, present increase trend.When wood pulp addition is 0, the water absorbing properties of sheet paper base is minimum, and Cobb30 value and Cobb60 value are respectively 26.7 g/m
2with 28.4 g/m
2; When wood pulp addition is 15%, Cobb30 value and the Cobb60 value of sheet paper base rise to respectively 27.5 g/m
2with 29.5 g/m
2, under experiment condition, the interpolation of wood pulp increases the absorbent of sheet paper base slightly to some extent, but changes little.
Comprehensively above-mentioned, the addition of wood pulp in sheet paper base increases, because wood pulp cellulose has good elasticity and intensity, the hole on sheet paper base surface is increased gradually, structure between sheet paper base internal fiber and fiber becomes loose, be conducive to liquid from the surface pore infiltration of sheet paper base, permeance property increases, and the whole absorbent of sheet paper base rises to some extent along with the increase of wood pulp addition.
(3) add the scanning electron microscope analysis of wood pulp to reconstituted tobacoo paper substrate
That accompanying drawing 7 ~ 13 shows is the surperficial SEM figure of wood pulp and sheet paper base.Wherein, a1 is wood-pulp board fiber surface (500 *), a2 is wood-pulp board fiber, (100 *), b1 is the rear wood-pulp board fiber (500 *) of making beating, b2 is the rear wood-pulp board fiber (100 *) of making beating, c1 is 3% wood pulp cellulose sheet paper base (500 *), c2 is 3% wood pulp cellulose sheet paper base (100 *), d 1 is 6% wood pulp cellulose sheet paper base (500 *), d2 is 6% wood pulp cellulose sheet paper base (100 *), e1 is 9% wood pulp cellulose sheet paper base (500 *), e2 is 9% wood pulp cellulose sheet paper base (100 *), f1 is 12% wood pulp cellulose sheet paper base (500 *), f2 is 12% wood pulp cellulose sheet paper base (100 *), g1 is 15% wood pulp cellulose sheet paper base (500 *), g2 is the surperficial SEM figure of 15% wood pulp cellulose sheet paper base (100 *).From accompanying drawing 7 ~ 13, the wood pulp cellulose smooth surface of making beating not, fiber is stiff, the adhesion between fiber and fiber a little less than, become paper structure more loose, intensity is lower, air permeability good (accompanying drawing a1 and figure a2); There is obvious wire-dividing broom purification in the wood pulp cellulose after making beating, in pulping process, be accompanied by continuing of shear action and conquassation effect, fiber finer cell is by conquassation, and fiber has had the cut-out of considerable part, and then fibrillating, fibre swelling, (accompanying drawing b1 and figure b2) strengthened in the wire-dividing broom purification effect of fiber, improved the binding ability between fiber and fiber, thereby tensile index and tear index increase greatly, and can also keep good permeability (table 2).The surface porosity factor of wood pulp of not pulling an oar is maximum, though the porosity of wood pulp diminishes to some extent after making beating, porosity is still very high.In sheet paper base, the addition of wood pulp increases gradually, when sheet paper base physical strength increases, has effectively improved the surface property of sheet paper base, and the porosity on sheet paper base surface is along with the addition of wood pulp increases and obviously increases.
Do not pull an oar wood pulp cellulose due to more stiff, and adhesion is more weak, and bulk is high, and its cross section fiber is more open, and internal structure is loose (accompanying drawing 14a) relatively.Wood pulp cellulose wire-dividing broom purification after making beating, fiber surface is owing to having good adhesion, and from its cross section SEM figure (accompanying drawing 14b), the tightness of fiber increases, and becomes the bulk of paper to decline more.In sheet paper base, add making beating wood pulp afterwards, because wood pulp cellulose has good toughness and elasticity, be conducive to improve the internal structure of sheet paper base.From accompanying drawing 14 ~ 19, in sheet paper base, the addition of wood pulp increases, and the structure of sheet paper base inside becomes loose, and the hole of appearance increases, thereby the air permeability of sheet paper base is increased.
(4) add the impact of wood pulp on reconstituted tobacoo paper substrate flue gas
The impact of table 9 wood pulp addition on sheet paper base flue gas analysis
| Wood pulp addition/% | 0 | 2 | 3 | 6 | 9 | 12 | 15 | 20 |
| Tar/mg | 9.7 | 9.0 | 8.6 | 8.0 | 7.7 | 7.7 | 7.0 | 6.2 |
| TPM/mg | 11.83 | 11.35 | 11.28 | 10.25 | 10.22 | 10.13 | 9.32 | 8.61 |
| Puff number/Puffs | 5.7 | 5.3 | 5.0 | 4.8 | 4.7 | 5.0 | 4.9 | 4.7 |
| Actual measurement moisture content/mg | 2.13 | 2.31 | 2.25 | 2.18 | 2.61 | 2.45 | 2.40 | 2.24 |
| Nicotine/mg | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| Carbon monoxide/mg | 20.70 | 20.2 | 19.7 | 19.7 | 19.0 | 18.9 | 18.4 | 17.7 |
Table 9 has shown the flue gas analysis result of adding sheet paper base after wood pulp.Along with the increase of wood pulp addition, the air permeability of sheet paper base increases, thereby improve the combustibility of sheet paper base, and the interpolation of wood pulp reduced the consumption of offal and offal in Cigarette, and therefore the tar content of sheet paper base also reduces.From table 9, sheet paper base tar content and the CO amount of not adding wood pulp are respectively 9.7 mg and 20.70 mg, when wood pulp addition is 6%, the tar content of sheet paper base and CO amount are 8.0 mg and 19.7 mg, declined respectively 17.53% and 4.83%, TPM is propped up and is dropped to 10.25 mg/ and prop up by 11.83 mg/, and puff number also drops to 4.8 by 5.7.Continue to increase wood pulp addition, the tar content of sheet paper base and CO amount continue on a declining curve.As can be seen here, add wood pulp in sheet paper base, reduced tar content and the CO amount in sheet paper base, meanwhile, TPM amount and puff number also have decline in various degree.
Comprehensively above-mentioned, the experimental result of adding wood pulp in sheet paper base shows, the addition of wood pulp is increased to 15% from 3%, because wood pulp cellulose has good elasticity and intensity, the tensile index of sheet paper base, tear index, air permeability be improved significantly, the hole on sheet paper base surface increases gradually, structure between sheet paper base internal fiber and fiber becomes loose, be conducive to liquid from the surface pore infiltration of sheet paper base, permeance property increases, and the whole absorbent of sheet paper base rises to some extent along with the increase of wood pulp addition.The tar content of sheet paper base and CO amount have decline in various degree simultaneously.Addition increase due to wood pulp, brings counter productive to the sensory evaluating smoking of reconstituted tobacoo, so the addition of wood pulp in sheet paper base is just as far as possible few.From above-mentioned experimental result, when the addition of wood pulp is 6%, the physical property of sheet paper base and permeance property be improved significantly, and the indexs such as the tar content of sheet paper base, CO amount, TPM have realized decline to a certain degree, consider, so the addition of selected wood pulp is 6%.
embodiment 6 adds wood pulp cellulose, the impact of calcium carbonate on sheet paper base physical property
By embodiment 1 step, prepare reconstituted tobacco paper substrate, wherein step (4) adds running water by tobacco mixed slurry, being mixed with solid content is the tobacco slurry suspension of 0.5 wt.%, be uniformly dispersed, under stirring at low speed, add wherein and account for tobacco slurry mass percent and be respectively 6% wood pulp cellulose, the guar gum that is 0.25% by tobacco slurry mass percent, be 0 ~ 70% calcium carbonate with accounting for tobacco slurry mass percent, other steps, with embodiment 1, prepare reconstituted tobacco paper substrate.
Different calcium carbonate consumptions on the impact of paper substrate physical property in Table 10
The impact of the different calcium carbonate consumptions of table 10 on paper substrate physical property
| CaCO 3Consumption/% | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 |
| Tensile index/Nmg -1 | 14.29 | 17.76 | 15.55 | 13.15 | 12.76 | 13.27 | 11.66 | 11.66 |
| Tensile strength/kNm -1 | 0.95 | 1.27 | 1.10 | 1.00 | 0.96 | 0.95 | 0.87 | 0.86 |
| Tear index/mNm 2·g -1 | 1.90 | 2.05 | 1.94 | 1.91 | 1.88 | 1.87 | 1.83 | 1.68 |
| Bulk/cm 3·g -1 | 2.33 | 2.34 | 2.43 | 2.40 | 2.46 | 2.43 | 2.41 | 2.45 |
| Tightness/gcm -3 | 0.38 | 0.43 | 0.41 | 0.42 | 0.41 | 0.41 | 0.42 | 0.41 |
| Air permeability/μ mPa -1·s -1 | 2.56 | 2.06 | 3.46 | 5.08 | 5.33 | 5.45 | 5.57 | 6.94 |
| Ash content/% | 6.14 | 7.51 | 8.90 | 10.11 | 11.72 | 12.42 | 14.01 | 14.42 |
Note: the addition of wood pulp is 6%, guar gum consumption is 0.25%.
As can be seen from Table 10, do not add and fill out CaCO
3sheet paper base tensile index and tear index be respectively 14.29 Nm/g and 1.90 mNm
2/ g, after adding 10% calcium carbonate, the tensile index of sheet paper base and tear index rise to 17.76 Nm/g and 2.05 mNm slightly
2/ g.This is mainly to fill out CaCO adding
3time added guar gum, the interpolation of guar gum has strengthened the combination between fiber and fiber, and now the keep amount of calcium carbonate in sheet paper base is not very large, both integrate and see, guar gum wants large to the intensity contribution of sheet paper base, so caused sheet paper base intensity index to strengthen slightly to some extent.Along with adding in sheet paper base, fill out CaCO
3consumption increase, CaCO
3keep increase, the ash content of sheet paper base increases gradually, works as CaCO
3add the amount of filling out and be increased to 60% time, the ash content of sheet paper base has been increased to 14.01%, CaCO
3keep and obtained good effect.CaCO
3add the increase of the amount of filling out, tensile index and the tear index of sheet paper base reduce gradually, work as CaCO
3add the amount of filling out and be increased to 60% time, the tensile index of sheet paper base and tear index drop to 11.66 Nm/g and 1.68 mNm
2/ g.Do not add CaCO
3sheet paper base bulk be 2.33 cm
3/ g, CaCO
3addition be increased to 70% from 10%, the bulk of sheet paper base increases a little to some extent, works as CaCO
3add the amount of filling out and be increased to 60% time, the bulk of sheet paper base is 2.41 cm
3/ g, generally speaking adds and fills out CaCO
3bulk impact on sheet paper base is little.
Different calcium carbonate consumptions on the impact of paper substrate permeance property in Table 11
The impact of table 11 calcium carbonate consumption on sheet paper base permeance property
| CaCO 3Consumption/% | 0 | 30 | 50 | 70 |
| Max/s | 0.169 | 0.149 | 0.133 | 0.113 |
| Cobb30/g·m -2 | 26.8 | 26.7 | 27.3 | 27.5 |
| Cobb60/g·m -2 | 29.0 | 29.0 | 28.5 | 29.3 |
| t95/s | 0.602 | 0.417 | 0.335 | 0.281 |
Characteristic value t95 characterizes the porosity on sheet paper base surface, as can be seen from Table 11, only adds wood pulp and does not add CaCO
3t95 value be 0.602 s, work as CaCO
3when consumption is 30%, the t95 value of sheet paper base is 0.417 s, works as CaCO
3when consumption is 70%, the t95 value of sheet paper base is 0.281 s, along with CaCO
3the increase of consumption, the t95 value of sheet paper base declines gradually, and CaCO is described
3add in sheet paper base, be conducive to sheet paper base surface and obtain more open surface texture, be conducive to liquid and be penetrated into sheet paper base inside from sheet paper base surface.
Wetability Max refers to that reconstituted tobacoo paper substrate is reached the time after the highest by complete wetting and signal strength signal intensity, and it is along with liquid increases in the increase of the paper surface time of staying.As can be seen from Table 11, wetability Max value and t95 value present close Changing Pattern, all along with CaCO
3the increase of consumption and be increase trend.Only add wood pulp and do not add CaCO
3max value be 0.169 s, work as CaCO
3when consumption is 30%, Max value drops to 0.149 s, works as CaCO
3when consumption is 70%, Max value minimum (0.113 s), CaCO
3consumption increases, more CaCO
3retain in sheet paper base inside, be conducive to form between fiber and fiber more loose pore structure, corresponding the improving of permeance property of sheet paper base.
From the result of experiment, Different Ca CO
3under consumption condition, the Cobb30 value of sheet paper base and Cobb60 there is no too large variation, add CaCO
3little on the Cobb30 value of sheet paper base and the impact of Cobb60 value.
3. add the scanning electron microscope analysis of wood pulp, calcium carbonate reconstituted tobacoo paper substrate
Accompanying drawing 20 ~ 23 is for adding wood pulp cellulose and CaCO
3the surperficial SEM figure of sheet paper base, Figure 24 is cross section SEM figure.From accompanying drawing 20 ~ 23, in sheet paper base, add CaCO
3amount increase, the surface porosity of sheet paper base declines to some extent, sheet paper base surface becomes more smooth.From accompanying drawing 24, add CaCO
3the internal structure of sheet paper base becomes very loose afterwards, and sheet paper base is inner occurs larger hole, and has more irregular fine pore, and inner porosity significantly improves, thereby improves the air permeability of sheet paper base, adds and fills out CaCO
3the internal structure of sheet paper base significantly improves afterwards.
4. add wood pulp, the impact of calcium carbonate on reconstituted tobacoo paper substrate flue gas
Table 12 sheet paper base flue gas analysis result
| (sheet paper base) CaCO 3Consumption/% | 0 | 30 | 50 | 70 |
| Tar/mg | 8.0 | 6.9 | 6.5 | 6.3 |
| TPM/mg | 10.25 | 8.86 | 8.25 | 8.25 |
| Puff number/Puffs | 4.8 | 4.9 | 4.6 | 4.5 |
| Actual measurement moisture content/mg | 2.18 | 1.96 | 1.72 | 1.90 |
| Nicotine/mg | 0.02 | 0.02 | 0.02 | 0.02 |
| Carbon monoxide/mg | 19.7 | 18.6 | 16.3 | 16.1 |
Along with CaCO
3the increase of consumption, the air permeability of sheet paper base increases, thereby improves the combustibility of sheet paper base, and the increase of calcium carbonate consumption reduced offal and the shared ratio of offal in Cigarette, and therefore the tar content of sheet paper base also reduces.Table 12 is wood pulp consumption 6%, adds Different Ca CO
3the flue gas analysis result of sheet paper base after consumption.From table 12, do not add and fill out CaCO
3sheet paper base tar content and CO amount be respectively 8.0 mg and 19.7 mg, work as CaCO
3when consumption is 50%, the tar content of sheet paper base and CO amount is 6.5 mg and 16.3 mg, has declined respectively 18.75% and 17.25%, and TPM is propped up and dropped to 8.25 mg/ and prop up by 10.25 mg/, and puff number also drops to 4.5 by 4.8.Continue to increase CaCO
3consumption, the tar content of sheet paper base and CO amount continue on a declining curve.As can be seen here, add CaCO
3in sheet paper base, reduced tar content and the CO amount in sheet paper base, meanwhile, TPM amount and puff number also have decline in various degree.
The experimental result of adding wood pulp in sheet paper base shows, the addition of wood pulp is increased to 15% from 3%, because wood pulp cellulose has good elasticity and intensity, the tensile index of sheet paper base, tear index, air permeability be improved significantly, the hole on sheet paper base surface increases gradually, structure between sheet paper base internal fiber and fiber becomes loose, be conducive to liquid from the surface pore infiltration of sheet paper base, permeance property increases, and the whole absorbent of sheet paper base rises to some extent along with the increase of wood pulp addition.The interpolation of wood pulp makes the tar content of sheet paper base and CO amount have decline in various degree.Addition increase due to wood pulp, brings counter productive to the sensory evaluating smoking of reconstituted tobacoo, so the interpolation of wood pulp in sheet paper base should be more the least possible.Through considering and constantly experiment and analysis, the present invention sums up, when the addition of wood pulp is 6%, the physical property of sheet paper base and permeance property be improved significantly, and the tar content of sheet paper base and CO amount also have decline to a certain degree, so the addition of selected wood pulp is 6%.
Further, the present invention studies summary, when wood pulp addition is 6%, adds and fill out CaCO in sheet paper base
3be increased to 70% from 15%, the physical strength of sheet paper base declines to some extent, and permeance property and the absorbent of sheet paper base improve.Do not add and fill out CaCO
3sheet paper base tar content and CO amount be respectively 8.0 mg and 19.7 mg, work as CaCO
3when consumption is 50%, the tar content of sheet paper base and CO amount is 6.5 mg and 16.3 mg, has declined respectively 18.75% and 17.25%, and TPM is propped up and dropped to 8.25 mg/ and prop up by 10.25 mg/, and puff number also drops to 4.5 by 4.8.Continue to increase CaCO
3consumption, the tar content of sheet paper base and CO amount continue on a declining curve, if still dose the consumption of calcium carbonate, surpass 50%, and wing is not obvious in the ash content increase of paper substrate, therefore increases calcium carbonate consumption little to sheet paper base effect again.Calcium carbonate consumption surpasses after 50%, and the physical strength of paper substrate declines very fast, is unfavorable for that the production of paper substrate is manufactured paper with pulp.So, determine when wood pulp addition is 6%, in sheet paper base, add and fill out CaCO
3amount is 50%.
the optimum addition of embodiment 7 calcium carbonate, wood pulp cellulose and guar gum
Calcium carbonate amount of filling account for tobacco material slurry quality 50%, wood pulp cellulose addition account for tobacco material slurry quality 6%, guar gum account for tobacco material slurry quality 0.25% time, the performance index of the paper substrate of the reconstituted tobacco preparing is as follows:
Tensile index/Nmg
-1: 13.55
Tensile strength/kNm
-1: 0.96
Tear index/mNm
2g
-1: 1.89
Bulk/cm
3g
-1: 2.46
Tightness/gcm
-3: 0.41
Air permeability/μ mPa
-1s
-1: 5.57
Max/s：0.133
Cobb30/g·m
-2：27.4
Cobb60/g·m
-2：28.6
t95/s：0.338
Tar/mg:6.5
TPM/mg:8.31
Puff number/Puffs:4.6
Actual measurement moisture content/mg:1.97
Nicotine/mg:0.02
Carbon monoxide/mg:16.4.
The reconstituted tobacoo that obtained offal sheet paper base is prepared in conjunction with existing common process is applied in cigarette, by 7 professional members of smoking, carry out sensory evaluation, the very soft silk floss of the flue gas of sample product, exquisiteness, flow velocity is slower, and long sense significantly increases, and fragrance texture is more clear, bright, thoroughly send out, harmony is good, without assorted gas, flue gas moisture feeling significantly promotes, comprehensive grading 10 minutes.
Claims (3)
1. a method of improving reconstituted tobacco paper substrate quality, comprise that dipping extracts the step of offal and offal, defibrination, making beating, handsheet, pressing and drying, it is characterized in that in handsheet step adding accounting for calcium carbonate that tobacco material slurry mass percent is 50%, 6% wood pulp cellulose and 0.25% guar gum in tobacco material slurry.
2. improve according to claim 1 the method for reconstituted tobacco paper substrate quality, it is characterized in that concrete steps are: wood pulp cellulose adds in tobacco material slurry, under the condition that is 2% at solid content, discongest, and then to be mixed with solid content be 0.5%～1.0% slurry, in finely dispersed situation, add while stirring calcium carbonate aqueous solution, continue stirring and add aqueous guar glue solution after 30 seconds, continue to stir rapid handsheet after 1 minute.
3. the reconstituted tobacco paper substrate that the arbitrary described method of improving reconstituted tobacco paper substrate quality of claim 1～2 prepares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190340.6A CN102715641B (en) | 2012-06-11 | 2012-06-11 | Method for improving quality of reconstituted tobacco paper base and reconstituted tobacco paper base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190340.6A CN102715641B (en) | 2012-06-11 | 2012-06-11 | Method for improving quality of reconstituted tobacco paper base and reconstituted tobacco paper base |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102943408B (en) * | 2012-10-12 | 2015-04-08 | 红云红河烟草(集团)有限责任公司 | Preparation method for shaping paper used for cigarette filter tip rod |
| CN103005660B (en) * | 2012-12-28 | 2015-02-11 | 上海烟草集团有限责任公司 | Production process for reducing CO release amount of paper-making reconstituted tobacco and reconstituted tobacco |
| CN103141928B (en) * | 2012-12-31 | 2015-08-26 | 杭州利群环保纸业有限公司 | A kind of tobacco sheets by paper making method preparation method and manufactured goods thereof |
| CN103174052B (en) * | 2013-02-07 | 2016-06-01 | 赵鸿 | The preparation method of thin section for tobacco and thin section for tobacco |
| CN103469691A (en) * | 2013-09-06 | 2013-12-25 | 湖北中烟工业有限责任公司 | Preparation method of natural tobacco texture cigarette paper |
| CN103519341B (en) * | 2013-10-23 | 2015-06-03 | 红塔烟草(集团)有限责任公司 | Low-pectin-content reconstituted tobacco slice base by papermaking process and preparing method thereof |
| CN104473318B (en) * | 2014-12-03 | 2017-01-18 | 湖北中烟工业有限责任公司 | Harm-reducing and tar-lowering recombined tobacco and producing method thereof |
| CN104957754B (en) * | 2015-07-09 | 2016-09-14 | 川渝中烟工业有限责任公司 | A kind of improve the method for calcium carbonate retention rate in papermaking-method reconstituted tobaccos |
| CN105146718B (en) * | 2015-07-09 | 2017-06-13 | 川渝中烟工业有限责任公司 | A kind of method of calcium carbonate retention rate in raising papermaking-method reconstituted tobaccos |
| CN105768182A (en) * | 2016-04-19 | 2016-07-20 | 滁州卷烟材料厂 | Tobacco flakes added with grape vine and production method tobacco flakes |
| CN107048468A (en) * | 2017-06-06 | 2017-08-18 | 山东瑞博斯烟草有限公司 | A kind of preparation method and application of papermaking-method reconstituted tobaccos compounded mix |
| CN109662339A (en) * | 2019-01-16 | 2019-04-23 | 华南理工大学 | A kind of sophora flower odor type reconstituted tobacoo and its method for baking |
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