CN102599635B - Preparation method of tobacco sheet from cabo and tobacco waste - Google Patents
Preparation method of tobacco sheet from cabo and tobacco waste Download PDFInfo
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Abstract
The invention discloses a preparation method of tobacco sheet from cabo and tobacco waste. The preparation method adopts a papermaking method, and comprises the steps of: respectively immersing and extracting cabo and tobacco waste, filtering to obtain extract and cabo residue or tobacco waste residue after immersing treatment; carrying out milling, sheet making, squeezing and drying on the cabo residue or tobacco waste residue to obtain flaky paper base; and coating the extract as a coating liquid on the flaky paper base for tobacco. According to the invention, the process conditions of the key steps are further optimized, the physical properties, chemical components, tensile index, tear index, bulk, tightness, air permeability, filling value, wetting property and penetrating performance of the flaky paper base for the tobacco are improved, and strong technical support is provided for further improving and stabilizing the tobacco sheet quality.
Description
Technical field
The invention belongs to reconstituted tobacoo production technical field, be specifically related to a kind of offal offal tobacco curing grass preparation of sections method.
Background technology
In tobacco redrying and production of cigarettes process, can produce the tobacco waste such as offal, offal that accounts for former cigarette material total amount 1/3.China has the offal resource of few hundred thousand tonnes of to go out of use every year, causes waste and the environmental pollution of resource.
It is current study hotspot that application offal and offal are prepared reconstituted tobacoo.Can utilize the tobacco waste such as offal, offal, be produced and obtained reconstituted tobacoo by certain processing technology, wherein a kind of production method is paper process.The advantages such as the reconstituted tobacoo that paper process is produced has that density is little, filling value is large, good mechanical property, tar content are low are the main production technologies of current reconstituted tobacoo.Adopt producing tobacco flake in method similar to papermaking, sucking quality and the physical property of its processing technology to reconstituted tobacoo plays crucial effect.The dipping that the technical study of existing producing tobacco flake in method similar to papermaking mainly concentrates on offal and offal extracts and thermodynamic analysis aspect, do not consider in whole reconstituted tobacoo preparation process comprehensively, the material impact of the indexs such as other critical processes and condition physical property, chemical composition and the flue gas to reconstituted tobacoo paper substrate, lacks more system, rational overall technology of preparing scheme.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of offal offal tobacco curing grass preparation of sections method is provided.
The invention provides a kind of offal offal tobacco curing grass preparation of sections method, adopt paper process to prepare, dipping extracts offal and offal, filters to obtain stem extracting solution, offal extract and the offal slag after impregnation process, offal slag respectively; Offal slag, offal slag obtain sheet paper base through defibrination, handsheet, pressing and drying; Return and be coated onto on thin section for tobacco paper substrate extract as coating fluid.
The preparation method of reconstituted tobacoo specifically comprises the following steps:
(1) 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 DEG C, 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 use as coating fluid; Offal, offal solid after impregnation process are used for defibrination.
More preferably, described offal and offal adopt three stage countercurrent extraction processes: offal and offal respectively through the first order extract, the second level is extracted and the third level enters defibrination workshop section after extracting.The third level extract adverse current that the third level obtains after extracting and adopting clear water to extract enters the second level and floods extraction, second level extract another mistake flows to into the first order extracts experiment, last first order extract carries out evaporation and concentration and obtains coating fluid after pretreatment, is coated onto on thin section for tobacco paper substrate in order to last returning.Described three stage countercurrent extraction conditions are: offal: liquor ratio: 1 ﹕ 7, and temperature: 80 DEG C, the time: 40min; Offal: liquor ratio: 1 ﹕ 10, temperature: 80 DEG C, the time: 30min.In three grades of leaching process, the process conditions of every one-level are not made and are changed.
(2) defibrination; Offal after impregnation process, offal carry out three sections of defibrinations, and the concentration of defibrination is 20%;
(3) handsheet; Further, offal and offal, through after dipping defibrination, are determined the ratio of suitable offal slurry and offal slurry, join the thin section for tobacco paper substrate of searching and seize to obtain; The mass ratio of offal slurry and offal slurry is preferably 100:0～20:80, and more preferably technical scheme is, the mass ratio of offal and offal is 100:0～70:30, and the mass ratio of optimum offal and offal is 70:30.
(4) pressing and drying obtains sheet paper base;
The pressure of described squeezing is preferably 0～0.4MPa, and more preferred squeeze pressure condition is 0.1MPa;
Described dry temperature is 85～115 DEG C, and optimum baking temperature is 105 DEG C.
Being about total time about 7 min of squeezing, the dry time is not done strict restriction, ensures dried reconstituted tobacoo paper substrate.
(5) coating fluid step (1) being prepared returns and is coated onto on thin section for tobacco paper substrate.
Returning extract as coating fluid and be coated onto on thin section for tobacco paper substrate, is specifically that the ratio that is 1:1 according to volume ratio is carried out evaporation and concentration and obtained described coating fluid by offal and offal extract.
The invention has the beneficial effects as follows:
The present invention is based on unique analytic angle, first sum up at dipping and two crucial steps of handsheet and adopt suitable offal and offal consumption proportion, produce significant technique effect.Although the present invention adopts offal and offal to produce reconstituted tobacoo like the prior art, but significantly different from prior art is, first the present invention carries out respectively different impregnation process for the offal physical characteristic different with offal, determine suitable solid-liquid ratio, the stronger impregnation process process conditions of specific aim are studied, be conducive to minimum solvent the soluble component stripping in offal, improve solid content in extract, greatly reduce extract energy consumption used in subsequent evaporation concentration process; Copy step and again studied proportioning that different proportion offal slurry and offal the starch result that affects on reconstituted tobacoo quality joining, comprehensive analysis sums up the one-sided effect of these factors and the complicated relation that affects each other, accurately determined the suitable proportion that offal slurry and offal are starched; On this basis, process conditions to other committed steps are further optimized, physical property, chemical composition, tensile index, tear index, bulk, tightness, permeability, filling value, wetability and the permeance property of effectively improving thin section for tobacco paper substrate, provide strong technical support to the quality of further raising and stable reconstituted tobacoo.
Brief description of the drawings
The impact of Fig. 1 offal/offal content on sheet paper base tensile index; The SEM figure of the different offals of Fig. 2 and offal proportioning sheet paper base; The SEM figure of sheet paper base under the different squeeze pressures of Fig. 3; Fig. 4 tri-stage countercurrents extract flow chart; The impact of Fig. 5 dip time on offal water-soluble sugar; The impact of Fig. 6 dipping temperature on offal water-soluble sugar; Fig. 7 extracts the impact of progression on yield and recovery rate; Fig. 8 extracts the impact of progression on total reducing sugar, total alkali, chlorine and total nitrogen recovery rate.
Detailed description of the invention
Further describe the present invention below in conjunction with the drawings and specific embodiments.
Embodiment 1 floods the optimum preparation condition experiment of extract
Experiment is provided by Guangdong China Tobacco Industry Co.,Ltd with offal and offal, is commercial offal and the offal of routine, and offal and offal are refrigerated under 4 DEG C of conditions, and pack equilibrium water conten is for subsequent use.
Single hop dipping extracts: offal and offal single hop dipping extract experiment to carry out in digital display thermostat water bath (the present embodiment adopts golden happy HHS type water-bath).First offal and offal are packed in polyethylene sealing bag, according to the distilled water that adds certain volume, and the water-bath of putting into oneself and rise to different temperatures, insulation.During dipping extracts, rub once every 10min, so that reaction evenly.After single hop dipping has extracted, extrusion dehydration in 120 object polyester nets, collects extract and carries out corresponding chemical analysis.In extract, offal and offal, the mensuration of water-soluble sugar, total alkaloid, total nitrogen and chlorine adopts respectively following standard to measure:
The mensuration continuous flow method of YC/T 159-2002 tobaccos and tobacco product water-soluble sugar
The mensuration continuous flow method of YC/T 160-2002 tobaccos and tobacco product total alkaloid
The mensuration continuous flow method of YC/T 161-2002 tobaccos and tobacco product total nitrogen
The mensuration continuous flow method of YC/T 162-2002 tobaccos and tobacco product chlorine
Flow analysis adopts Continuous Flow Analysis instrument AA3 (SEAL AutoAnalyzer 3, SEAL Analytical Co., UK) to detect.In offal and offal, the mensuration of lignin, holocellulose and organic solvent extract content is measured according to following standard: the mensuration of GB-T2677.8-1994 paper making raw material acid-insoluble lignin content;
The mensuration of acid soluble lignin in GB/T 10337-2008 paper making raw material and paper pulp; The mensuration of GB-T2677.10-1995 paper making raw material holocellulose content; The mensuration of GB-T2677.6-1994 paper making raw material organic solvent extract content.
(1) offal and offal dipping orthogonal experiment
The present invention has designed Preliminary screening and goes out to be applicable to the orthogonal experiment of the technological parameter that offal and offal single hop dipping extract.Adopt four factor three horizontal quadrature experiment (L
93
4) determine that dip time (a), maceration extract are than (b) and the affect size of three factors of dipping temperature (c) on offal and the rear extract character of offal dipping, its corresponding level is in table 1 and table 2.
Table 1 offal dipping extracts orthogonal experiment condition
* other condition: test over dry is 15g at every turn.
Table 2 offal dipping extracts orthogonal experiment condition
* other condition: test over dry is 15g at every turn.
Offal, after single hop dipping extracts, is collected dipping extract, adopt in flow analysis Detection and Extraction liquid total nitrogen, water-soluble sugar and total alkaloid content, experimental result is as shown in table 3.The intuitive analysis of total nitrogen, water-soluble sugar and the total alkaloid of dipping extract is respectively as shown in table 4, table 5 and table 6.
Table 3 offal dipping extracts Orthogonal experiment results
| Experiment condition | Total nitrogen/% | Water-soluble sugar/% | Total alkaloid/% |
| a 1b 1c 1 | 0.44 | 25.96 | 0.35 |
| a 1b 2c 2 | 0.42 | 24.65 | 0.34 |
| a 1b 3c 3 | 0.44 | 23.34 | 0.34 |
| a 2b 1c 2 | 0.61 | 24.52 | 0.41 |
| a 2b 2c 3 | 0.43 | 40.45 | 0.95 |
| a 2b 3c 1 | 0.50 | 27.83 | 0.44 |
| a 3b 1c 3 | 0.85 | 52.65 | 1.24 |
| a 3b 2c 1 | 0.67 | 36.44 | 0.80 |
| a 3b 3c 2 | 0.42 | 25.73 | 0.29 |
The intuitive analysis of table 4 offal dipping experiment total nitrogen
Suitable dipping extraction time is to ensureing that the stripping of soluble component is essential in offal, but the time is oversize, and the most directly impact is in actual production process, to need more many energy consumptions by causing, and can extend the cycle that dipping extracts.From the extreme difference intuitive analysis of offal, under experiment condition, extraction time extends to 90min from 30min, and in extract, the content of total nitrogen rises to 0.65% from 0.43%; In extract, the content of water-soluble sugar is increased to 38.28% from 24.65%, has increased by 13.63%; In extract, the content of total alkaloid brings up to 0.78% from 0.34%.Dip time increases, the content of total nitrogen, water-soluble sugar and total alkaloid corresponding increase along with the prolongation of extraction time in extract, from the result of range analysis, dipping extraction time is also the first factor that affects the rear total nitrogen of offal extraction, water-soluble sugar and total alkaloid content.
The increase of maceration extract ratio, is conducive to extract more solable matter from offal.Under experiment condition, extract the intuitive analysis result of experiment from single hop, the liquor ratio that offal extracts is increased to 1 ﹕ 9 from 1 ﹕ 7, and in extract, total nitrogen, water-soluble sugar and total alkaloid content are substantially on a declining curve.The increase of maceration extract ratio, energy consumption while having increased dip coated liquid evaporation and concentration, from this respect, adopting little liquor ratio is to have sizable advantage, extract is than being the second factor that affects total nitrogen in extract, water-soluble sugar and total alkaloid content, and therefore the liquor ratio of selected offal dipping is 1 ﹕ 7.
Suitably improve dipping temperature, the carrying out that is conducive to accelerate abstraction reaction, promotes the stripping of solable matter in offal.But temperature is too high, will cause chemical substance generation chemical reaction in stem extracting solution, cause its content to decline.The intuitive analysis result of being extracted by offal, under experiment condition, it is the 3rd factor that affects the rear total nitrogen of offal extraction, water-soluble sugar and total alkaloid content that dipping extracts temperature, when temperature is 60 DEG C, in extract, total nitrogen, water-soluble sugar and total alkaloid content are all the highest, continue to improve temperature to 80 DEG C, in extract, total nitrogen, water-soluble sugar and total alkaloid content decline on the contrary, and therefore the extraction temperature of tentatively selected offal is 60 DEG C.
The intuitive analysis of table 5 offal dipping experiment water-soluble sugar
The intuitive analysis of table 6 offal dipping experiment total alkaloid
Offal, after single hop dipping extracts, is collected dipping extract, adopt in flow analysis Detection and Extraction liquid total nitrogen, water-soluble sugar and total alkaloid content, experimental result is as shown in table 7.The intuitive analysis of total nitrogen, water-soluble sugar, total alkaloid and the yield of dipping extract is respectively as shown in table 8,9,10 and 11.
Table 7 offal dipping extracts Orthogonal experiment results
| Experiment condition | Total nitrogen/% | Water-soluble sugar/% | Total alkaloid/% |
| a 1b 1c 1 | 0.89 | 47.49 | 5.20 |
| a 1b 2c 2 | 0.71 | 38.29 | 3.49 |
| a 1b 3c 3 | 0.64 | 29.23 | 3.05 |
| a 2b 1c 2 | 0.96 | 29.75 | 2.58 |
| a 2b 2c 3 | 0.74 | 36.56 | 3.11 |
| a 2b 3c 1 | 0.65 | 47.73 | 5.14 |
| a 3b 1c 3 | 0.89 | 44.67 | 5.12 |
| a 3b 2c 1 | 0.81 | 39.18 | 3.85 |
| a 3b 3c 2 | 0.65 | 30.51 | 2.54 |
The intuitive analysis of table 8 offal dipping experiment total nitrogen
From offal dipping total nitrogen intuitive analysis (table 8), under selected experiment condition, dip time, liquor ratio, temperature are little on the impact of total nitrogen in extract.From the water-soluble sugar of offal dipping experiment and the intuitive analysis (table 9 and table 10) of total alkaloid, under experiment condition, temperature is the principal element that affects offal dipping experiment, and temperature changes to 80 DEG C from 40 DEG C, and in offal leaching liquor, the no-load voltage ratio of water-soluble sugar, total alkaloid is larger; When the dip time of offal is 30min, in extract, water-soluble sugar, total alkaloid content have reached maximum, further time expand, is to flooding the DeGrain extracting, in extract, water-soluble sugar, total alkaloid content decline on the contrary slightly to some extent, the dipping extraction time 30min that offal is described is enough, because dip time is to affect the second factor that offal extracts, therefore the extraction time of selected offal is 30min.From the yield intuitive analysis (table 11) of offal dipping experiment, dip time and dipping temperature are less on the dipping yield impact of offal, dipping yield reduces along with the increase of maceration extract ratio, and when liquor ratio is 1:8, offal yield is 59.72%, when liquor ratio is 1:10, the yield of offal is 56.96%, then continues to increase liquor ratio to 1:12, and the yield of offal is 55.85%, the yield of offal declines little, is 1:10 so select the liquor ratio of offal.
The intuitive analysis of table 9 offal dipping experiment water-soluble sugar
The intuitive analysis of table 10 offal dipping experiment total alkaloid
The intuitive analysis of table 11 offal dipping experiment yield
(2) offal and offal flood single factors optimization experiment
Sum up from above-mentioned orthogonal experiment analysis, the extraction time of offal is to affect the first factor that offal extracts, the extraction temperature of offal is to affect the principal element that offal extracts, and therefore the extraction temperature of the extraction time to offal and offal is carried out further Optimal Experimental.
1 offal list factors optimization experiment
The impact of table 12 extraction time on offal
| Dip time/min | Water-soluble sugar/% | Total alkaloid/% | Total nitrogen/% |
| 20 | 18.34 | 0.23 | 0.67 |
| 40 | 29.77 | 0.58 | 1.24 |
| 60 | 31.95 | 0.64 | 1.02 |
| 80 | 37.49 | 0.67 | 1.01 |
| 100 | 38.81 | 0.98 | 1.19 |
* other condition: liquor ratio: 1 ﹕ 7; Temperature: 60 DEG C.
The time that changes the extraction of offal dipping is respectively 20min, 40min, 60min, 80min and 100min, the content of water-soluble sugar, total alkaloid and total nitrogen in Detection and Extraction liquid, and experimental result is as shown in table 12.From table 12, in extract, the content of water-soluble sugar, along with the increase of dip time presents obvious ascendant trend, is shown in shown in accompanying drawing 5.In the time that dip time is 100min, in extract, the content of water-soluble sugar is 38.81%, has reached maximum.The content of total alkaloid has also also reached the highest at content in the time that dip time is 100min, is 0.98%.In the time that extraction time is greater than 40min, in extract, the content of total nitrogen is little.Therefore, selecting offal dip time is 100min.
2 offal list factors optimization experiments
The impact of table 13 extraction time on offal
| Temperature/DEG C | Water-soluble sugar/% | Total alkaloid/% | Total nitrogen/% |
| 40 | 35.80 | 3.67 | 1.26 |
| 50 | 37.12 | 3.79 | 1.30 |
| 60 | 37.34 | 3.84 | 1.31 |
| 70 | 38.96 | 3.92 | 1.36 |
| 80 | 39.59 | 3.96 | 1.35 |
| 90 | 38.25 | 3.87 | 1.36 |
* other condition: liquor ratio: 1 ﹕ 10; Time: 60 min.
Summed up and obtained by the result of orthogonal experiment, the extraction temperature of offal is the principal element that affects offal extraction result, changes the extraction temperature of offal, the content of water-soluble sugar, total alkaloid and total nitrogen in Detection and Extraction liquid, and experimental result is as shown in table 13.Data analysis from table 13 learns, the extraction temperature of offal is elevated to 90 DEG C from 40 DEG C, in extract the content of water-soluble sugar along with extract the increase of temperature occur first rising after downward trend, ask for an interview shown in accompanying drawing 6.In the time that extraction temperature is 70 DEG C, in extract, the content of water-soluble sugar is 38.96%, extract temperature and continue to be increased to 80 DEG C, in extract, the content of water-soluble sugar is increased to 39.59%, extract temperature and rise to 80 DEG C from 70 DEG C, in extract, the content of water-soluble sugar has increased by 0.63%, and the amplitude of increase is not obvious.In the time that extraction temperature is 70 DEG C, in extract, the content of total nitrogen has reached maximum, is 1.36%; In the time that extraction temperature is 80 DEG C, the content of total alkaloid reaches maximum, is 3.96%.Can be summed up by above analysis, the extraction temperature of offal is between 70 DEG C～80 DEG C, and the result that offal extracts is more satisfactory.
Three stage countercurrents extract: three stage countercurrents of offal or offal extract flow chart as shown in Figure 4, and offal and offal enter defibrination workshop section respectively after first order extraction, second level extraction and the third level are extracted.The third level extract adverse current obtaining after third level extraction employing clear water extraction offal or offal enters the second level and floods extraction offal or offal; second level extract another mistake flows to into the first order to be extracted; last first order extract carries out evaporation and concentration after pretreatment, and the coating fluid obtaining returns and is coated onto on thin section for tobacco paper substrate.Three stage countercurrents extract each experiment offal, the each 200g(over dry of offal), three stage countercurrents extract and move after 5 times, collect offal and offal after every one-level dipping has extracted, natural air drying, with microphyte grinder mill powdered, collect 40～60 object samples and carry out plant fiber material analysis, other samples that grind grind cigarette machine through Cyclotec 1093 again and clay into power, for flow analysis.Extract in conjunction with single hop dipping the better experiment condition that experiment obtains, through great many of experiments analysis and summary, determine that the process conditions of three stage countercurrents extractions are as follows: offal: liquor ratio: 1 ﹕ 7, temperature: 80 DEG C, the time: 40min; Offal: liquor ratio: 1 ﹕ 10, temperature: 80 DEG C, the time: 30min.In three grades of leaching process, the process conditions of every one-level are not made and are changed.The experimental result that offal and offal three stage countercurrents extract is as shown in table 14 and table 15.As seen from Table 14, the progression extracting when offal is from the first order to the second level, and the yield of offal is from 73.39% slow decreasing to 65.11%, and offal extracts and proceeds to the third level from the second level, and the yield of offal drops to 59.78% from 65.11%.The yield of the offal first order, the second level and the third level is respectively 54.95%, 49.02% and 45.78%.Accompanying drawing 7 is for extracting the result that affects of the yield of progression on offal, offal and recovery rate, and in accompanying drawing 7, curve 1 represents offal yield, and curve 2 represents the total recovery rate of offal, and curve 3 represents offal yield, and curve 4 represents the total recovery rate of offal.In identical extraction progression the inside, the yield of offal is more much lower comparatively speaking than the yield of offal, shows that, under experiment condition, the extraction of offal is easier than the extraction of offal.Offal and offal first order recovery rate are 26.61% and 45.05%, and shown in table 16 and table 17, the recovery rate that three stage countercurrents extract is 40.22% and 54.22%, illustrate that three grades of extractions have higher recovery rate than one-level extraction.It can also be seen that from accompanying drawing 5, extract progression from the first order to the third level, the yield of offal and offal is to be almost line to decline, and recovery rate is linear rising.
Three stage countercurrents extract has stronger extractability than single-stage extraction.
Table 14 offal three stage countercurrents extract result
| ? | Water-soluble sugar/% | Total alkaloid/% | Chlorine/% | Total nitrogen/% | Yield/% |
| Raw material | 15.84 | 0.63 | 2.06 | 1.65 | 100 |
| The first order is extracted | 10.61 | 0.42 | 1.03 | 1.46 | 73.39 |
| Extract the second level | 8.09 | 0.32 | 0.72 | 1.45 | 65.11 |
| The third level is extracted | 6.44 | 0.25 | 0.49 | 1.42 | 59.78 |
In tobacco stalk raw material, the content of water-soluble sugar, total alkaloid, chlorine and total nitrogen is respectively 15.84%, 0.63%, and 2.06% and 1.65%, be shown in Table 14.In the first order is extracted, the content of water-soluble sugar drops to 10.61% from 15.84%, and the extraction rate reached of water-soluble sugar is to 33.02%, is shown in Table 15.In offal, the content of total alkaloid is lower, but in the first order is extracted, the recovery rate of total alkaloid has also reached 33.33%, is shown in Table 16.The chlorine of offal and the recovery rate of total nitrogen are respectively 50% and 11.52%, extract the inside in the first order, and the recovery rate of offal chlorine is the highest, and the recovery rate of total nitrogen is minimum.Offal is in extract the second level, and the content of water-soluble sugar, total alkaloid, chlorine is respectively 8.09%, 0.32% and 0.72%, and corresponding recovery rate rises to 48.93%, 49.21% and 65.05%.But in extract the second level, in offal, the content of total nitrogen is 1.45%, relatively the first order is extracted, and changes very littlely, illustrates that it is more difficult from offal, extracting total nitrogen.In offal raw material, the content of water-soluble sugar, total alkaloid, chlorine and total nitrogen is respectively 15.36%, 2.23%, and 0.55% and 2.26%, be shown in Table 15.The content that extracts water-soluble sugar, total alkaloid, chlorine and total nitrogen in section in the first order drops to respectively 5.60%, 0.83% and 0.10%, wherein the recovery rate of water-soluble sugar and total alkaloid has reached 63.54% and 62.78, and the recovery rate of chlorine, especially up to 81.82%, is shown in Table 17.
Table 15 offal three stage countercurrents extract result
| ? | Water-soluble sugar/% | Total alkaloid/% | Chlorine/% | Total nitrogen/% | Yield/% |
| Raw material | 15.36 | 2.23 | 0.55 | 2.26 | 100 |
| The first order is extracted | 5.60 | 0.83 | 0.10 | 2.23 | 54.95 |
| Extract the second level | 3.08 | 0.45 | 0 | 2.22 | 49.02 |
| The third level is extracted | 1.63 | 0.21 | 0 | 2.20 | 45.78 |
Table 16 offal recovery rates at different levels
| ? | Water-soluble sugar/% | Total alkaloid/% | Chlorine/% | Total nitrogen/% | Total recovery rate/% |
| The first order is extracted | 33.02 | 33.33 | 50.00 | 11.52 | 26.61 |
| Extract the second level | 48.93 | 49.21 | 65.05 | 12.12 | 34.89 |
| The third level is extracted | 59.34 | 60.32 | 76.21 | 13.94 | 40.22 |
Table 17 offal recovery rates at different levels
| ? | Water-soluble sugar/% | Total alkaloid/% | Chlorine/% | Total nitrogen/% | Total recovery rate/% |
| The first order is extracted | 63.54 | 62.78 | 81.82 | 1.33 | 45.05 |
| Extract the second level | 79.95 | 79.82 | 100 | 1.77 | 50.98 |
| The third level is extracted | 89.39 | 90.58 | 100 | 2.65 | 54.22 |
In the leaching process of the second level, in offal, the recovery rate of water-soluble sugar and total alkaloid continues to rise to 79.95% and 79.82%, and now in offal, the recovery rate of chlorine, up to 100%, illustrates that in offal, chlorine is the material easily extracting.Three stage countercurrents extract the final recovery rate of water-soluble sugar, total alkaloid, chlorine in offal respectively up to 89.39%, 90.58% and 100%, and therefore, offal is easy to extract than offal because have compared with little volume with compared with large specific area more.In three grades of leaching process, in offal and offal, the content of total nitrogen is smaller, illustrates that the nitrogen compound in offal and offal, particularly protein are more difficult to remove from offal and offal.
In offal, offal, the recovery rate of water-soluble sugar, total alkaloid, chlorine and total nitrogen is shown in accompanying drawing 8 with the variation diagram that extracts progression, in accompanying drawing 8, curve 1 represents offal water-soluble sugar, curve 2 represents offal total alkaloid, curve 3 represents offal chlorine, curve 4 represents offal total nitrogen, and curve 5 represents offal water-soluble sugar, curve 6
Represent offal total alkaloid, curve 7 represents offal chlorine, and curve 8 represents offal total nitrogen.From accompanying drawing 8, in the middle of four detected class chemical substances, chlorine is the composition the most easily extracting in offal, when recovery rate extracts in the second level, has just reached 100%.Under experiment condition, in three stage countercurrent leaching process, the water-soluble sugar of offal is almost the same with the recovery rate of total alkaloid, and the water-soluble sugar of offal and total alkaloid also have identical recovery rate.No matter be that single hop extracts or three stage countercurrents extract, offal all has higher recovery rate.From recovery rate aspect, three stage countercurrents extract and show more intense extractability, and are conducive to increase the content of water-soluble sugar in extract, total alkaloid, chlorine and total nitrogen, the evaporation that this is follow-up to extract
Concentrated is favourable.
Extract in the process of offal, offal at three stage countercurrents, in offal and offal, the content of acid-insoluble lignin, holocellulose, benzene-ol extract is shown in table 18.From table 18, in offal and tobacco stalk raw material, lignin, holocellulose content are respectively 4.01%, 4.80% and 29.39%, 36.42%, all slightly large than in offal of lignin content and holocellulose content in offal.After extracting through the first order, due to a large amount of strippings of soluble component in offal and offal, and the stripping of lignin and holocellulose is less, cause the content of lignin and holocellulose in offal and offal greatly to improve, lignin in offal and tobacco stalk raw material, holocellulose content is respectively 11.50%, 10.15% and 50.76%, 48.77%, offal and offal are respectively 45.05% and 26.61% at the recovery rate of the first order, in offal, the stripping of soluble component is more high than offal, so the first order extract after all slightly large than offal of lignin content and holocellulose content in offal.Extract from the first order to the third level, in offal and offal, lignin content slightly declines along with extracting the increase of progression; The temperature that three stage countercurrents extract is 80 DEG C, (pH value is about 4.8～7.2) carried out in extraction under solutions of weak acidity, with this understanding offal and offal are carried out to three stage countercurrent extractions, in offal and offal, the lignin of some is along with extract stripping, and lignin as acid-soluble in low-molecular-weight and holocellulose are hydrolyzed under solutions of weak acidity can stripping.Along with extracting the increase of progression and the increase of recovery rate, extract third level extraction from the first order, in offal and offal, the content of holocellulose is ever-increasing, has arrived the third level, both content is respectively 59.45% and 56.21%, and the stripping that holocellulose is described is less comparatively speaking.In offal and tobacco stalk raw material the content of benzene-ol extract be respectively 14.97% and 6.79%(be shown in Table 18), the content of organic solvent extract is larger, increase when extracting progression, along with the stripping of soluble component in offal and offal, in offal and offal, the content of benzene-ol extract reduces gradually.After the third level is extracted, in offal and offal, the content of benzene-ol extract is respectively 12.69% and 2.63%, reduces respectively 2.28% and 4.16% than the benzene-ol extract in raw material, illustrates that the stripping of the soluble component of organic solvent in offal and offal is fewer.
Table 18 extracts the impact of progression on lignin, holocellulose and benzene-ol extract
Dipping extracts offal and offal, filters to obtain extract and the offal slag after impregnation process, offal slag; Offal slag, offal slag obtain sheet paper base through defibrination, handsheet, pressing and drying; After stem extracting solution and offal extract are mixed according to the volume ratio of 1:1, return and be coated onto on thin section for tobacco paper substrate as coating fluid, the reconstituted tobacoo that obtained offal sheet paper base is prepared in conjunction with existing common process is applied in cigarette, carries out sensory evaluation by 7 professional members of smoking.
Sample 1: offal single hop dipping extracts (solid-liquid ratio 1:7, extracting temperature is 60 DEG C, extraction time is 100 minutes) and offal single hop dipping extraction (solid-liquid ratio 1:10, extract temperature 70 C, extraction times 60 min), sample 2: offal and offal extract through the first order respectively, second level extraction and the third level enter defibrination workshop section after extracting, the third level is extracted and adopts clear water to extract the third level extract adverse current obtaining to enter the second level and flood extraction, second level extract another mistake flows to into the first order extracts experiment, last first order extract carries out evaporation and concentration and obtains coating fluid after pretreatment, be coated onto on thin section for tobacco paper substrate in order to last returning.Three stage countercurrent extraction conditions of described offal and offal are respectively: offal: liquor ratio: 1 ﹕ 7(mass ratio), temperature: 80 DEG C, the time: 40min; Offal: liquor ratio: 1 ﹕ 10(mass ratio), temperature: 80 DEG C, the time: 30min.In three grades of leaching process, the process conditions of every one-level are not made and are changed.The mass ratio of handsheet step offal slurry and offal slurry is all 70:30, and other process conditions are consistent.
Analyses Methods for Sensory Evaluation Results: the softer silk floss of sample 1 product flue gas, exquisiteness, flow velocity is slower, and long sense increases; Fragrance texture is more clear, bright, thoroughly send out, and harmony is better, and assorted gas is less, and flue gas moisture feeling increases, and oral cavity is cleaner, and global comfort gets a promotion.Sample 2 Analyses Methods for Sensory Evaluation Results: the soft silk floss of product flue gas, exquisiteness, flow velocity is slower, and long sense obviously increases; Fragrance texture is clear, bright, thoroughly send out, and harmony is fine, and mint type note feature is more obvious; Assorted gas is little, and flue gas moisture feeling significantly increases, and oral cavity is clean, and global comfort obviously promotes.
embodiment 2
Experiment is provided by Guangdong China Tobacco Industry Co.,Ltd with offal, offal, is the commercial offal of routine and offal.Offal and offal are refrigerated under 4 DEG C of conditions, and pack equilibrium water conten is for subsequent use.
(1) dipping extracts
The present embodiment extracts experiment to offal, offal single hop dipping and produces in electric cooking pot (plain edition) ZT1-00/15L(Xingping City Zhong Tong rig for testing Co., Ltd) in carry out.
Offal extracts: offal dress pot amount is 1500g.First by liquor ratio 1:7(mass ratio) about water 10000mL is joined in digester, be preheating to 60 DEG C, add offal, build pot cover and be rotated boiling, after 60 DEG C of insulation 100 min, adopt dewaterer to carry out drying dehydration, equilibrium water conten, for defibrination.
Offal extracts: the dress pot amount of offal is 1200g.First by liquor ratio 1:10(mass ratio) about water 11000mL is joined in digester, be preheating to 70 DEG C, add offal, build pot cover and be rotated boiling, after 70 DEG C of insulation 60 min, offal adopts dewaterer to carry out drying dehydration, and equilibrium water conten is for subsequent use.
(2) defibrination
The KRK-2500 II high-density paste mill that offal after impregnation process, offal adopt Japanese KRK company to produce carries out three sections of defibrinations.First paragraph grinding clearance (gap between mill Moving plate and price fixing) is 0.4mm; Second segment grinding clearance is 0.2mm; The 3rd section of grinding clearance is 0.15mm; The refining concentration of three sections of defibrinations is all 20%(mass percent concentration, can produce with reference to paper process the concept of described solid content);
The mill parameter of described first paragraph defibrination is:
The mill parameter of described second segment defibrination is:
The mill parameter of the 3rd section of defibrination is with reference to the parameter of second segment defibrination mill.
(3) handsheet
Offal and offal, through after dipping and defibrination, obtain respectively offal slurry and offal slurry.Adopt the ratio of different offal slurry and offal slurry, join the thin section for tobacco paper substrate of searching and seize to obtain; After slurry after defibrination prepares in proportion, adopting Austria's quick handshcet former of product PTI to copy is quantitatively 70 g/m
2the scraps of paper are also dry.90 DEG C of baking temperatures, drying times 12 min, vacuum 0.09 MPa.The scraps of paper, at lower 24 h that process of iso standard constant temperature and humidity condition (23 ± 1 DEG C of relative humidity 50 ± 2% and temperature), are then measured the paper substrate performance indications that prepare under different offal slurries and offal slurry quality conditions of mixture ratios.
(4) Continuous Flow Analysis
Offal after extraction, offal further adopt dewaterer to carry out drying dehydration, natural air drying afterwards, clay into power with plant pulverizer, collect 40～60 object samples and carry out plant fiber material analysis, other samples that grind grind cigarette machine through Cyclotec 1093 again and clay into power, for flow analysis.
Continuous Flow Analysis adopts Continuous Flow Analysis instrument AA3 (SEAL AutoAnalyzer 3, SEAL Analytical Co., UK) to detect.In offal, the mensuration of water-soluble sugar, total alkaloid, total nitrogen and chlorine adopts respectively YC/T 159-2002, YC/T 160-2002, YC/T 161-2002 and YC/T 162-2002 standards to measure.
(5) SEM (SEM) is observed
To after the thin section for tobacco paper substrate cutting of write by hand, carry out metal spraying processing, then use SEM (Hitachi S-3700N) to observe.
(6) flue gas analysis
The equipment that flue gas analysis adopts is CERULEAN SM450 type 20 duct linear pattern smoking machines, is furnished with COA205 co meter; Agilent 6890 gas chromatographs.In flue gas, the mensuration of TPM and tar adopts GB/T 19609-2004 to measure, and the mensuration of nicotine adopts YC/T 156-2001 standard to measure.
All the other projects analyses are measured and are all undertaken by respective country standard.
After offal and offal dipping extract, the variation of chemical substance is shown in table 19.From table 19, after offal and offal extract, the benzene-ol extract content of offal drops to 3.67% from 6.79%, declines by a big margin; And the benzene-ol extract content of offal has only declined 1.06%, illustrate that offal still contains a large amount of solable matters through after extracting.Owing to extracting, temperature is lower, lignin in offal and offal, holocellulose are almost that chemical change does not occur, so extract the rising along with recovery rate afterwards, the lignin of offal and offal, the relative rising of holocellulose content are larger, and the holocellulose content of offal and offal has improved respectively 12.4% and 21.37%.After extracting, in offal and offal, the content of water-soluble sugar, total alkaloid and chlorine is all significantly decline, and the content of total nitrogen changes not quite comparatively speaking, after extracting, the recovery rate of offal and offal is respectively 26.7% and 45.05%, and the relative offal of offal is easy to extract more.Adopt the present embodiment process conditions extract after the stripping of offal and water-soluble component in offal and holocellulose content relative rise to follow-up to offal and offal carry out defibrination, handsheet provides good condition.
The mutation analysis result of chemical substance before and after table 19 offal and offal dipping
| Chemical composition | Tobacco stalk raw material | Offal after extracting | Offal raw material | Offal after extracting |
| Benzene-ol extract/% | 6.79 | 3.67 | 14.97 | 13.91 |
| Acid-insoluble lignin/% | 4.01 | 8.86 | 4.80 | 11.50 |
| Acid soluble lignin/% | 0.35 | 1.29 | 0.43 | 1.42 |
| Holocellulose/% | 36.4 | 48.8 | 29.39 | 50.76 |
| Water-soluble sugar/% | 15.8 | 10.6 | 15.36 | 5.60 |
| Total alkaloid/% | 0.63 | 0.42 | 2.23 | 0.83 |
| Chlorine/% | 2.06 | 1.03 | 0.55 | 0.10 |
| Total nitrogen/% | 1.65 | 1.46 | 2.26 | 2.23 |
| Recovery rate/% | -- | 26.7 | -- | 45.05 |
Offal after extracting and offal are through three sections of defibrinations, and defibrination result is shown in table 20.From table 20, the defibrination yield of offal is higher, is 84.27%; And the defibrination yield of offal is 79.36%, lower comparatively speaking.The applicant analyzes, main cause is that offal is in defibrination process, water-soluble component in offal can further stripping, and due to the effect of defibrination, in slurry, the shared ratio of fiber fines component is very large after offal pulping, fiber fines is easy to run off in defibrination process, makes offal defibrination yield lower.The beating degree of offal slurry and offal slurry is respectively 31
osR and 38
osR, the defibrination total energy consumption of offal exceeds 213 kWh/t than the defibrination total energy consumption of offal
slurry, illustrate that offal is easy to defibrination more than offal, under identical defibrination condition, more easily obtain higher beating degree.
Table 20 offal and offal defibrination result
Offal and offal, through after dipping defibrination, change the ratio of offal slurry and offal slurry, join and copy thin section for tobacco paper substrate, and table 21 is the physical property of the sheet paper base of gained under different offal slurries and offal slurry conditions of mixture ratios.
The impact of table 21 offal proportionings different from offal on paper substrate physical property
| Offal slurry/% | 100 | 90 | 80 | 70 | 60 | 50 | 40 | 30 | 20 |
| Offal slurry/% | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
| Tensile index/Nmg -1 | 23.62 | 21.91 | 18.22 | 16.43 | 13.66 | 13.01 | 9.54 | 9.20 | 8.85 |
| Tensile strength/kNm -1 | 1.69 | 1.59 | 1.35 | 1.27 | 1.07 | 1.00 | 0.71 | 0.72 | 0.71 |
| Tear index/mNm 2·g -1 | 1.50 | 1.40 | 1.26 | 1.23 | 1.13 | 1.09 | 1.03 | 0.85 | 0.79 |
| Bulk/cm 3·g -1 | 1.84 | 1.77 | 1.76 | 1.76 | 1.74 | 1.72 | 1.71 | 1.70 | 1.70 |
| Tightness/gcm -3 | 0.54 | 0.56 | 0.57 | 0.57 | 0.57 | 0.58 | 0.59 | 0.59 | 0.59 |
| Air permeability/μ mPa -1·s -1 | 1.85 | 1.80 | 1.80 | 1.72 | 1.63 | 1.19 | 1.17 | 0.88 | 0.85 |
For tobacco stalk fibre, the offal fiber of gained is short and small after offal defibrination, and water filtering performance is poor, and the binding ability of offal slurry is poor, and offal slurry, in joining and copy with offal slurry, is more the role who has served as fiber fines and tiny component.And offal fiber fines component can be improved fiber combination by three kinds of modes: specific bonding strength (effect of similar glue); The bonding area (in conjunction with adding up of border) of fiber cross section; Combination quantity (fiber furthers) between fiber, adding of the tiny component of offal can make offal slurry long fibre fraction produce some bending and distortion, the fiber that can further, the tightness of increase sheet paper base.
According to the data mapping in table 21, see accompanying drawing 1.From accompanying drawing 1, in thin section for tobacco paper substrate, along with offal is starched the increase of shared proportioning, the tensile index of sheet paper base and tear index are linear increase trend.Affect the most important factor of tensile strength and be adhesion between fiber and the intensity of fiber self, and fibre length is the key factor that affects tearability.Join in the process of copying at offal and offal, along with the reduction of tobacco stalk fibre proportioning, the content of sheet paper base medium-length fibre reduces, and adds the offal slurry that binding ability is poor, and the anti-intensity index of gained sheet paper base and tear index decline very soon.As shown in Table 21, the adding proportion of offal slurry increases, and the bulk of sheet paper base is on a declining curve.Main cause is that the adding proportion of offal slurry increases, because offal is starched the characteristic with similar fiber fines, it is easily distributed between the space of fiber and fiber in paper substrate, makes it not produce contribution to the bulk that becomes paper, thereby cause the bulk of gained thin section for tobacco paper substrate to decline.The offal that size is different with homogeneity and offal are starched under certain condition of manufacturing paper with pulp, and have formed the different net with certain paper structure (sheet paper base) of thickness, tightness and porosity, and then affect the air permeability of paper.In table 21, show the impact of offal proportionings different from offal on sheet paper base air permeability: the offal slurry adding in sheet paper base increases, and the air permeability of sheet paper base declines.Offal is starched less sheet paper base and is only had offal long fibre interlaced, and not tight in conjunction with obtaining, space is more; The sheet paper base that contains more (offal slurry) fiber fines, between fiber, in conjunction with tightr, space is less, and fiber fines is filled in adjacent long stapled space, plays " bridge formation " effect.Because fiber fines is soft and thin, can not stop up network of fibers, also there is on the contrary the ability that fibrillar meshwork structure is shunk, dwindle the distance between fiber, promote the tightness of sheet paper base, thereby the air permeability of sheet paper base is declined.The Analysis of Physical result of sheet paper base shows, along with the decline (the shared ratio of offal rises relatively) of offal proportioning in thin section for tobacco paper substrate, the tensile index of thin section for tobacco paper substrate and tear index all decline very fast, and bulk declines to some extent, and air permeability is on a declining curve.
Accompanying drawing 2 is the SEM figure of the thin section for tobacco paper substrate of gained under different offals and offal conditions of mixture ratios.In accompanying drawing 2, a, b, c, d, e, f are respectively 100% offal, 90% offal: 10% offal, 80% offal: 20% offal, 70% offal: 30% offal, 60% offal: 40% offal, 50% offal: the SEM figure of the thin section for tobacco paper substrate of 50% offal gained; Above percentage is all mass percent.In accompanying drawing 2, high-visible by a, b, tri-figure of c, tobacco stalk fibre is 31 in beating degree
ounder SR condition, occur obvious sub-wire, brooming, and to starch shared ratio little due to offal, thin section for tobacco paper substrate becomes paper more loose, and offal slurry major part is filled between tobacco stalk fibre, and the offal slurry occurring on thin section for tobacco paper substrate surface seldom.Can find out from d, e, tri-figure of f, along with offal is starched shared ratio increase (more than 30%), offal slurry and offal slurry combine completely, offal fiber size is little, specific area is large, interfibrous interweave area and also increase relatively of adhesion, the tightness of thin section for tobacco paper substrate increases gradually, offal slurry is not only filled in tobacco stalk fibre, but also connect by hydrogen bond, be attached to thin section for tobacco paper substrate surface, and along with the increase of offal slurry proportion, the offal slurry of sheet paper base surface attachment increases thereupon.Can find out from the SEM map analysis of sheet paper base, tobacco stalk fibre is 31 in beating degree
ounder SR condition, occur obvious sub-wire, brooming phenomenon, offal is starched ratio shared in sheet paper base more than 30%, and offal slurry and offal slurry interweave very tight, and the sheet paper base tightness forming increases.Different offals become with the chemistry of the thin section for tobacco paper substrate of gained under offal conditions of mixture ratios
Divide analysis result shown in table 22.
The different proportioning sheet paper base of table 22 chemical composition analysis result
| Offal/% | 100 | 90 | 80 | 70 | 60 | 50 | 40 | 30 | 20 |
| Offal/% | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
| Water-soluble sugar/% | 0.25 | 0.61 | 0.38 | 0.27 | 0.25 | 0 | 0 | 0 | 0 |
| Total alkaloid/% | 0.23 | 0.22 | 0.21 | 0.21 | 0.20 | 0.21 | 0.21 | 0.20 | 0.21 |
| Chlorine/% | 0.55 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total nitrogen/% | 0.66 | 0.69 | 0.80 | 0.89 | 0.97 | 1.14 | 1.44 | 1.53 | 1.87 |
From table 22, the flue gas analysis result of sheet paper base shows, offal proportion increase in thin section for tobacco paper substrate, and tar content, TPM content and carbon monoxide content in sheet paper base cigarette smoke increase, puff number is also increase trend, and the content of nicotine changes hardly.Offal and offal are in defibrination process, offal and offal become tobacco stalk fibre and the offal fiber that volume is less, the specific area of these fibers is more much bigger than original offal and offal, add these fibers and absorbed the heat producing in defibrination process, make the soluble component in offal and offal more be easy to stripping in water, manufacturing paper with pulp in the plain boiled water that in thin section for tobacco paper substrate process, these soluble components run off in the process of manufacturing paper with pulp, cause water-soluble sugar in the thin section for tobacco paper substrate of gained, total alkaloid, the content of chlorion and total nitrogen has significantly and declines after all extracting than dipping.Wherein, the water-soluble sugar in thin section for tobacco paper substrate and the content of chlorion are very low, are even zero; The proportion relation of the content of total alkaloid in thin section for tobacco paper substrate and offal and offal is little, and stable content is between 0.20%～0.23%; And the content of total nitrogen is in rising trend along with the increase of offal proportion in sheet paper base.According to experiment and analysis result, in handsheet step, the mass ratio of offal slurry and offal slurry is preferably 100:0～20:80, and more preferably technical scheme is, the mass ratio of offal and offal is 100:0～70:30, and the mass ratio of optimum offal and offal is 70:30.
embodiment 3
Experiment is provided by Guangdong China Tobacco Industry Co.,Ltd with offal, offal, is the commercial offal of routine and offal.Offal and offal are refrigerated under 4 DEG C of conditions, and pack equilibrium water conten is for subsequent use.The dipping of offal and offal extracts, defibrination is processed with embodiment 2.Slurry after defibrination adopts Austria to produce the quick handshcet former of PTI and copies the quantitative 70g/m of being
2thin section for tobacco paper substrate (offal slurry is 7:3 with the mass ratio of offal slurry), adopts the square squeezer of KRK-2570 (Japanese KRK company) to squeeze, and changes different squeeze pressures, is then dried (preferably baking temperature is 105 DEG C).The scraps of paper, the lower processing of iso standard constant temperature and humidity condition (23 ± 1 DEG C of relative humidity 50 ± 2% and temperature) 24 hours, are then surveyed its physical performance index.
1, the mensuration of reconstituted tobacoo paper substrate Liquid Penetrant performance
Dynamically Penetration Signature adopts the Penetration Dynamics Analyzer(PDA.C 02 Module Standard that German EMTEC company produces, Module HVL, EST12) infiltration kinetic analyzer detects, and PDA can measure Liquid Penetrant fast and reliablely and enter the dynamic process of absorbability object.
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.This experiment is taking 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 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.
2, fibre analysis and SEM (SEM) are observed
To after the cutting of write by hand thin section for tobacco paper substrate, carry out metal spraying processing, then use SEM (Hitachi S-3700N) to observe.
3, analyze and measure
The mensuration of sheet paper base silk filling value adopts DD-60 Filling value meter (German BORGWALDT company) to detect, and measures and carries out according to Y/CT 152-2001.
All the other projects analyses are measured and are all undertaken by respective country standard.
Under different squeezing conditions, the thin section for tobacco paper substrate physical property of gained is shown in table 23.From table 23, in the time that squeeze pressure is increased to 0.4MPa from 0, the tensile strength of thin section for tobacco paper substrate is increased to 1.51 kN/m from 1.10 kN/m.In the time of defibrination owing to having increased the fibrillating of offal and offal fiber, not only promote the combination between fiber, and the fiber fines generating in the time of defibrination is in l Water Paper page press dewatering, because capillary relation is more prone to contact and produces Hydrogenbond.Squeeze pressure increases, and sheet paper base interfibrous contact in when squeezing can increase paper substrate, increases interfibrous bonded area, thereby can improve tensile strength and the tensile index of sheet paper base.
Table 23 squeezes the impact on thin section for tobacco paper substrate physical property
| Squeeze pressure/MPa | 0 | 0.1 | 0.2 | 0.3 | 0.4 |
| Tensile index/Nmg -1 | 17.27 | 20.48 | 21.82 | 22.46 | 23.69 |
| Tensile strength/kNm -1 | 1.10 | 1.33 | 1.41 | 1.45 | 1.51 |
| Tear index/mNm 2·g -1 | 2.00 | 1.98 | 1.79 | 1.75 | 1.69 |
| Bulk/cm 3·g -1 | 2.43 | 1.99 | 1.96 | 1.90 | 1.80 |
| Tightness/gcm -3 | 0.41 | 0.50 | 0.51 | 0.53 | 0.56 |
| Air permeability/μ mPa -1·s -1 | 1.20 | 0.56 | 0.10 | 0.07 | 0.04 |
| Filling value/cm 3·g -1 | 7.23 | 6.57 | 6.24 | 6.15 | 6.08 |
From table 23, it can also be seen that, improve squeeze pressure, reduce the bulk of sheet paper base simultaneously, improve its tightness, make the ventilative decline of sheet paper base.In the time that sheet paper base squeeze pressure is increased to 0.1 MPa from 0, the bulk of sheet paper base is from 2.43 cm
3/ g drops to 1.99 cm
3/ g, bulk 0.44 cm that declined
3/ g.In the time that squeeze pressure is brought up to 0.4MPa from 0.1MPa, the bulk of sheet paper base declines and becomes slower.This point also has a great impact for tear index, because improve when squeeze pressure, interfibrous adhesion can increase, but bulk can decline, so both comprehensive functions are depended in the variation of tear index.Increase squeeze pressure and can promote offal and the interfibrous combination of offal, but pressure is increased to and to a certain degree makes the bulk of page decline when more, sheet paper base just has more fiber and is pulled off instead of pulls out from sheet paper base in the time tearing, thereby the tear index that reduces sheet paper base, is shown in Table 23.
Sum up through research, the hardness of the height of filling value to cigarette, sunken property and the sucking quality of cigarette etc. of cigarette exert an influence.Under different squeeze pressure conditions, the filling value of the reconstituted tobacoo paper substrate silk of gained is shown in table 23.From table 23, the filling value of reconstituted tobacoo paper substrate silk is more high than the filling value of pipe tobacco, and filling value reduces along with the increase of squeeze pressure.When squeeze pressure is 0 MPa, sheet paper base, under the condition not being stressed, becomes the bulk of paper high, filling value maximum (7.23 cm of sheet paper base
3/ g), and along with the increase of squeeze pressure, the combination grow between fiber and fiber, the bulk of sheet paper base declines, and filling value reduces, and in the time that squeeze pressure is 0.4 MPa, filling value has been down to 6.08 cm
3/ g.
Surface texture, permeance property and the absorbent of sheet paper base plays very important impact to the follow-up painting process of sheet paper base.Under different squeeze pressure conditions, the permeance property of the reconstituted tobacoo paper substrate of gained is shown in table 24.
The impact of table 24 squeeze pressure on sheet paper base permeance property
| Squeeze pressure/MPa | 0 | 0.1 | 0.2 | 0.3 | 0.4 |
| t95/s | 0.422 | 0.693 | 1.039 | 1.250 | 3.165 |
| Max/s | 0.097 | 0.137 | 0.233 | 0.249 | 0.401 |
| Cobb30/g·m -2 | 26.7 | 20.8 | 16.1 | 15.0 | 9.7 |
| Cobb60/g·m -2 | 29.0 | 24.8 | 20.3 | 19.6 | 14.3 |
?t95 value has characterized the surface pore structure of sheet paper base, from table 24, in the time that squeeze pressure is 0 MPa, t95 value is minimum, and (0.442 s), the now surface porosity maximum of sheet paper base is described, combination under the condition that there is no pressure between fiber and fiber is more loose, adds the elasticity that fiber itself has, and makes the surface of sheet paper base occur more natural hole; T95 value increases gradually along with the increase of squeeze pressure, reduce gradually the surface pore of sheet paper base, in the time that squeeze pressure is 0.4 MPa, t95 value is maximum, and (3.165 s), the now surface porosity minimum of sheet paper base is described, this is because squeeze pressure increases to 0.4MPa, has promoted the combination between fiber and fiber in paper, obtain 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 24, wetability Max value and t95 value present close Changing Pattern, are all increase trend along with the increase of squeeze pressure.When squeeze pressure is 0 MPa, Max value minimum (0.097s), represents that the permeance property of sheet paper base is best; In the time that squeeze pressure increases to 0.4MPa, Max value maximum (0.401s), squeeze pressure increases, and the combination between fiber and fiber becomes closely, and the permeance property of sheet paper base is phase strain differential also.Under different squeeze pressure conditions, Cobb30 value and the Cobb60 value of sheet paper base are shown in table 24.Cobb30 value and Cobb60 value present close Changing Pattern, all present reduction trend along with the increase of squeeze pressure.In the time that squeeze pressure is 0 MPa, the water absorbing properties maximum of sheet paper base, Cobb30 value and Cobb60 value are respectively 26.7g/m
2with 29.0 g/m
2; In the time that squeeze pressure is 0.4 MPa, the Cobb30 value of sheet paper base and Cobb60 value drop to respectively 9.7 g/ m
2with 14.3 g/m
2, the water absorbing properties of sheet paper base obviously declines.Comprehensively above-mentioned, squeeze pressure increases, the hole on sheet paper base surface reduces gradually, it is tight that combination between sheet paper base internal fiber and fiber becomes, be unfavorable for the surface pore infiltration of liquid from sheet paper base, permeance property variation, the overall absorbent of sheet paper base obviously declines along with the increase of squeeze pressure.
Under different squeezing conditions, the scanning electron microscope analysis of reconstituted tobacoo paper substrate the results are shown in shown in accompanying drawing 3.Accompanying drawing 3 is the cross section SEM figure of thin section for tobacco paper substrate under different squeeze pressure conditions.In accompanying drawing 3, a, b, c, d are respectively the cross section SEM figure that squeeze pressure is thin section for tobacco paper substrate under 0MPa, 0.1MPa, 0.2MPa and 0.3MPa condition.From accompanying drawing 3, in the time that squeeze pressure is 0MPa, the internal structure of sheet paper base is more loose, and the distance between fiber and fiber is larger, and has formed many macrovoids, be conducive to air by and the infiltration of liquid; When squeeze pressure is 0.1MPa, the combination of sheet paper base fiber and fiber becomes closely gradually, and the hole of sheet paper base diminishes; In the time that squeeze pressure is 0.2MPa, the interfibrous combination of sheet paper base has become tightr, but still has some obvious holes; In the time that squeeze pressure is 0.3MPa, it is considerably less that the hole of sheet paper base inside has become, and it is very tight that the combination between fiber and fiber has become, and it is poor that gas permeability becomes, and be unfavorable for very much the infiltration of liquid in paper substrate inside.Therefore, under low squeeze pressure (< 0.2MPa) condition, can obviously improve sheet paper base bulk and porosity, be conducive to improve filling value and the air permeability of sheet paper base, and can improve the permeance property of sheet paper base.
The Study on Physical result of sheet paper base shows, along with squeeze pressure increases, the tensile strength of sheet paper base increases gradually, and tear index is on a declining curve, and bulk declines, and tightness rises, the permeability variation of sheet paper base.When squeeze pressure is 0 MPa, wetability Max value minimum (0.097s), t95 value is minimum, and (0.442 s), lyophily performance and the permeance property of sheet paper base are best, be conducive to sheet paper base to be coated with operation, wetability Max value and t95 value increase along with the increase of squeeze pressure, and the water repelling property of sheet paper base and impermeabilisation ability increase.Scanning electron microscope analysis result shows, under low squeeze pressure (< 0.2 MPa) condition, can significantly improve sheet paper base bulk and inner porosity, be conducive to improve filling value and the air permeability of sheet paper base, and can improve lyophily performance and the permeance property of sheet paper base.
Claims (3)
1. an offal offal tobacco curing grass preparation of sections method, adopts paper process to prepare, and dipping extraction offal and offal, filtration obtain extract and the offal slag after impregnation process or offal slag respectively; Offal slag or offal slag obtain sheet paper base through defibrination, handsheet, pressing and drying; Return extract as coating fluid and be coated onto on thin section for tobacco paper substrate; It is characterized in that comprising the following steps:
(1) adopt three stage countercurrent extracting methods to flood respectively and extract offal and offal: the extraction conditions of every one-level that described three stage countercurrents extract is: offal: liquor ratio is 1:7, temperature is 80 DEG C, the time is 40min; Offal: liquor ratio is 1:10, temperature is 80 DEG C, the time is 30min;
(2) system Separation of Solid and Liquid step (1) impregnation process being obtained, obtains respectively stem extracting solution, offal slag and offal extract, offal slag;
(3) offal slag step (2) being obtained and offal slag carry out respectively three sections of defibrinations and obtain offal slurry and offal slurry; Stem extracting solution and offal extract that step (2) is obtained are mixed to get coating fluid;
(4) described step (3) offal slurry and offal slurry are joined to the thin section for tobacco paper substrate of searching and seize to obtain: the mass ratio of offal slurry and offal slurry is 70:30;
(5) step (4) being joined to the handsheet of copying carries out pressing and drying and obtains sheet paper base; The pressure of described squeezing is 0.1MPa;
(6) the described coating fluid of step (3) is returned and be coated onto on the thin section for tobacco paper substrate that step (5) prepares, be drying to obtain reconstituted tobacoo;
The concentration of the described defibrination of step (3) is 20%; In step (3), the beating degree of offal slurry is 31 ° of SR, and the beating degree of offal slurry is 37 ° of SR;
In step (3), the KRK-2500 II high-density paste mill that defibrination adopts Japanese KRK company to produce carries out three sections of defibrinations, and the concentration of defibrination is 20%;
First paragraph grinding clearance is 0.4mm; Second segment grinding clearance is 0.2mm; The 3rd section of grinding clearance is 0.15mm; The refining concentration of three sections of defibrinations is all 20%;
The mill parameter of described first paragraph defibrination is:
The mill parameter of described second segment defibrination is:
The mill parameter of the 3rd section of defibrination is with reference to the parameter of second segment defibrination mill;
The time of the described squeezing of step (5) is 7min;
The mixed proportion of the described stem extracting solution of step (3) and offal extract is 1:1.
2. offal offal tobacco curing grass preparation of sections method according to claim 1, is characterized in that the described dry temperature of step (5) is 85 ~ 115 DEG C.
3. offal offal tobacco curing grass preparation of sections method according to claim 1, is characterized in that the described dry temperature of step (5) is 105 DEG C.
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| 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 |
| CN103005666A (en) * | 2013-01-08 | 2013-04-03 | 黄振庭 | Tobacco stalk shredding process |
| CN103519340B (en) * | 2013-10-14 | 2015-05-13 | 安徽中烟工业有限责任公司 | Method for manufacturing cigarette paper making process slices with burley tobacco stems as raw materials |
| CN105167156A (en) * | 2015-08-25 | 2015-12-23 | 湖北中烟工业有限责任公司 | Tobacco fragment treatment method for paper-making reconstituted tobacco |
| CN105559132B (en) * | 2016-01-18 | 2017-10-24 | 山东瑞博斯烟草有限公司 | A kind of preparation method of functional form reconstituted tobacco and application |
| CN107897997B (en) * | 2017-11-03 | 2018-09-28 | 昆明旭邦机械有限公司 | A kind of reconstituted tobacco and preparation method thereof |
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