CN107217532A - The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose - Google Patents
The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose Download PDFInfo
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- CN107217532A CN107217532A CN201710575022.4A CN201710575022A CN107217532A CN 107217532 A CN107217532 A CN 107217532A CN 201710575022 A CN201710575022 A CN 201710575022A CN 107217532 A CN107217532 A CN 107217532A
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- cellulose
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- wood pulp
- tobacco
- nanofibrils
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
Abstract
The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose, this method is that the nano-cellulose is the one or more in nanofibrils cellulose, nanocrystal cellulose, fento cellulose by nano-cellulose addition reconstructed tobacco leaf slurry in stock tank or before fan pump；The addition of nano-cellulose is 0.01% the 5% of tobacco slurry oven dry weight.The nano-cellulose Nantural non-toxic that the present invention is used, surface charge is enriched, use it as reinforcing agent to carry out starching interior addition, consumption is few, notable into the overall enhancing effect of paper, and the content of wood pulp cellulose and the quality of effective lifting reconstituted tobacco in tobacco substrate can be reduced to greatest extent.
Description
Technical field
The present invention relates to papermaking-method reconstituted tobaccos technical field, more specifically, being a kind of reduce in papermaking-method reconstituted tobaccos
The method of wood pulp content.
Background technology
Paper process production reconstituted tobacco is the most frequently used technique of current reconstituted tobacco, during it is produced, and tobacco slurry (starch by offal
With tobacco leaf slurry) non-fibrous material content is larger, and there is huge difference in its form, therefore it is former that tobacco is used alone with paper-making fibre
Slurry prepared by material can not be molded and ensure the operating of paper machine in paper manufacturing systems, in order that paper machine can be continuously run, then
Make and a part of wood pulp for paper fiber of addition is usually required in the production of tobacco leaf so that tobacco substrate has certain physics strong
Degree, so as to be smoothly molded during paper machine operation；In addition, the addition of wood pulp can also play the work of tobacco-based sheetmolding skeleton
With.However, physical property of the addition of wood pulp to reconstituted tobacco, mouthfeel etc. has certain negative effect, and such as wood pulp adds
Plus causing reconstituted tobacco to increase wood gas taste in sucking process, the addition of same wood pulp causes the bulk drop of tobacco substrate
Low, flexibility is deteriorated.Therefore, under the premise of tobacco substrate physical strength is ensured, wood pulp contains in further reduction tobacco substrate
Measure to improving the performance of sucking of papermaking-method reconstituted tobaccos, lifting quality of finished is significant.
Nano-cellulose is as a kind of new natural material, and it derives from natural plant fibre, is through mechanical means point
From a kind of obtained silky nano fiber.Nano-cellulose not only has the natural, characteristic of non-toxic degradable, also with huge
Specific surface area, higher length-width ratio shows very excellent enhancing characteristic, strengthening for paper, material is widely used in recent years
The industries such as material enhancing.Patent 200980120899.8 discloses a kind of coating composition of printing, patent
201610189592.5 disclose a kind of coating composition for improving reconstituted tobacoo bulk, the disclosure of patent 201210505118.0
A kind of preparation of nanofiber whisker paper strengthening agent and the method applied to tobacco sheets by paper making method coating.Above-mentioned patent is equal
Disclose and make an addition to nano-cellulose in coating coating, to strengthen surface strength, prevent hair and powder dropping.But in coating fluid
Middle addition nano-cellulose only has certain enhancing effect to face coat, and coating can only improve thin slice coating process, coating effect
Fruit and sheet surface performance, intensity and reduction wood pulp content to tobacco chip base can not be played a role.So far, there is not yet
Use nanofibrils cellulose (NFC)/fento cellulose (MFC)/nanocrystal cellulose (CNC), and its modification
Nanofiber afterwards usually reduces the report of wood pulp content in papermaking-method reconstituted tobaccos, while also not in the way of being added in starching
Nano-cellulose is substituted into the prior art of wood pulp as component with slurry.
The content of the invention
It is an object of the invention to solve the deficiencies in the prior art there is provided one kind by adding nano-cellulose reduction papermaking
The method of wood pulp cellulose in method reconstituted tobacco, to utilize nano-cellulose huge specific surface area, charge character and outstanding increasing
Powerful feature, reduces the addition of wood pulp cellulose, enables the paper substrate manufactured paper with pulp to keep enough intensity to maintain the smooth fortune of paper machine
OK, the reconstituted tobacco quality finally given is lifted.
To realize goal of the invention, the technical solution adopted by the present invention is as follows：
Using nano-cellulose reduce papermaking-method reconstituted tobaccos in wood pulp cellulose method, this method be in stock tank or
Nano-cellulose is added in reconstructed tobacco leaf slurry before fan pump, the nano-cellulose is nanofibrils cellulose, nano junction
One or more in crystalline cellulose, fento cellulose；The addition of nano-cellulose is tobacco slurry oven dry weight
0.01%-5%.
Nanofibrils cellulose of the present invention is nanofibrils cellulose, the surface carboxyl modification of unmodified modification
Nanofibrils cellulose, surface cationic be modified nanofibrils cellulose in one or more；The nanocrystal
Cellulose is the one or more in sulphuric acid hydrolysis type nanocrystal cellulose, the nanocrystal cellulose of surface carboxyl modification；
The fento cellulose is the fento cellulose, the fento cellulose of surface carboxyl modification, surface of unmodified modification
One or more in the fento cellulose of cation modifying.
The length of nanofibrils cellulose of the present invention is 1-50 μm, diameter 10-40nm；The nanocrystal cellulose
Length be 100-400nm, diameter 5-20nm.
The surface-bound carboxylic content of the nanofibrils cellulose of surface carboxyl modification of the present invention is 0.5-1.5mmol/g；
The surface charge for the nanofibrils cellulose that surface cationic is modified is 0.05-1.0mmol/g；The nanometer of surface carboxyl modification
The surface charge of avicel cellulose is 0.3-2.0mmol/g.
The addition of nano-cellulose of the present invention is preferably the 0.01%-2% of tobacco slurry oven dry weight.
The inventive method is the nano-cellulose aqueous solution that first configuration nano-cellulose mass concentration is 0.1-1%, is used
After high speed dispersor is scattered, nano-cellulose dispersion liquid is added to the matching somebody with somebody in stock tank before either fan pump of tobacco slurry.
The advantages of the present invention are as follows：
1st, compared with traditional Polymer Synthesizing reinforcing agent, the nano-cellulose Nantural non-toxic that the present invention is used, Nanowire
The addition of dimension element will not produce harmful substance；
2nd, nano-cellulose, especially nanofibrils cellulose (NFC), fento cellulose (MFC), nanocrystal fiber
Plain (CNC), and nano-cellulose after its modification carry out starching interior addition as reinforcing agent, show into the overall enhancing effect of paper
Write and consumption is few, wood pulp can be substituted as component with slurry, the content of wood pulp cellulose in tobacco substrate is reduced to greatest extent, is had
The quality of effect lifting reconstituted tobacco；
3rd, the nano-cellulose after surface modified, its surface charge density is improved, advantageously in the formation of hydrogen bond,
Hydrogen bond density is improved, intensity is improved；
4th, nano-cellulose utilizes the huge ratio surface of nano-cellulose with dispersion by the way of being added in slurry
Long-pending, special nano-scale, higher length-width ratio and the preferable strength characteristics of nanofiber, adds a small amount of nano-cellulose fine
Dimension substantially improves substrate physical with regard to it can be made to be adsorbed between tobacco slurry and tobacco slurry, tobacco slurry and wood pulp cellulose
Energy and absorbent properties, strengthen substrate intensity；
5th, procedure is simple to operate, with low cost, and effect is notable.
Brief description of the drawings
Fig. 1 is enhancing effect figure of the nanofibrils cellulose to tobacco substrate；
Fig. 2 is the nanofibrils cellulose scanning electron microscope (SEM) photograph of unmodified modification；
Fig. 3 a are cation-modified nanofibrils cellulose transmission electron microscope picture；
Fig. 3 b are the nanofibrils cellulose transmission electron microscope picture of surface carboxyl modification.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, the present invention is carried out further detailed
Explanation.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
By carboxy-modified nanocrystal cellulose, carboxy-modified nanofibrils cellulose, non-modified nanofibrils fiber
Element is each configured to three kinds of dispersion liquids that mass concentration is 0.5%, after disperseing using high speed dispersor, is respectively fed to holding vessel
In.The tobacco slurry after being beaten with 100 parts of tobacco leaf slurry, 10 parts of wood pulp cellulose, 15 parts of configurations of calcium carbonate is starched according to offal, slurry is dense
Spend for 1.5%.Nano-cellulose dispersion liquid is added to before fan pump respectively, addition is tobacco substrate oven dry weight
0.10%.Addition is manufactured paper with pulp auxiliary agent and filler, and being manufactured paper with pulp through paper machine obtains three and grow tobacco substrate.Three kinds of nano-celluloses are to tobacco-based
The enhancing effect of piece is as shown in table 1.
As can be seen from Table 1 under conditions of identical nano-cellulose addition, several nano-celluloses are to tobacco
Substrate is respectively provided with preferable enhancing effect.
The influence of the nano-cellulose species tobacco substrate physical property of table 1
Embodiment 1
The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose, concrete operation step is as follows：
1) the nanofibrils cellulose of 25-50 μm of fibre length, diameter 30-40nm unmodified modification is configured to matter
The nano-cellulose aqueous solution that concentration is 0.5% is measured, it is scattered using high speed dispersor, obtain nano-cellulose dispersion liquid and send into
Holding vessel is stand-by；
2) tobacco slurry after three parts of mashing is configured, the offal slurry and tobacco leaf slurry per portion tobacco slurry are all 100 parts of weights
Number is measured, it is not 10 parts, 9 parts, 8 parts of parts by weight that wood pulp cellulose, which is,；Calcium carbonate is all 15 parts of parts by weight, and slurry concentration is
1.5%.Nanofibrils cellulose dispersion liquid will be added to respectively before the fan pump of every a tobacco slurry, per portion tobacco pulp
Material adds nanofibrils cellulose, shape according to 0.04%, 0.07%, 0.10%, the 0.20% of tobacco substrate oven dry weight respectively
Into four groups of controls；
3) manufacture paper with pulp auxiliary agent and filler are added, is manufactured paper with pulp through paper machine and obtains 3 portions of totally 12 groups of tobacco substrates.Nanofibrils cellulose
Enhancing effect to tobacco substrate is as shown in figure 1, Fig. 2 is the nanofibrils cellulose scanning electron microscope (SEM) photograph of unmodified modification.
Embodiment 2
The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose, concrete operation step is as follows：
1) by 1-50 μm of fibre length, diameter 10-40nm cation-modified nanofibrils cellulose, surface carboxyl modification
Nanofibrils cellulose be configured to the dispersion liquid that concentration is 1%, it is scattered using high speed dispersor, obtain nano-cellulose and disperse
Liquid and to send into holding vessel stand-by；The surface charge for the nanofibrils cellulose that the surface cationic is modified is 0.5-
1.0mmol/g；The surface-bound carboxylic content of the nanofibrils cellulose of surface carboxyl modification is 1-1.5mmol/g；
2) tobacco slurry after configuration mashing：Offal slurry and tobacco leaf slurry per portion tobacco slurry are all 100 parts of parts by weight
Number, wood pulp cellulose is respectively 13 parts, 10 parts, 8 parts, 6 parts, 4 parts, 0 part of parts by weight；15 parts of parts by weight of calcium carbonate, slurry is dense
Spend for 1.0%.Cation-modified and carboxy-modified nano-cellulose dispersion liquid is added to rushing for every a tobacco slurry respectively
Before stock pump, the addition total amount of the nanofibrils cellulose of cation-modified nanofibrils cellulose and surface carboxyl modification is tobacco
The 0.10% of substrate oven dry weight；
3) manufacture paper with pulp auxiliary agent and filler are added, is manufactured paper with pulp through paper machine and obtains 6 portions of tobacco substrates, cation-modified nanofibrils are fine
Dimension element, the nanofibrils cellulose of surface carboxyl modification are to the enhancing effect of tobacco substrate as shown in table 2 (with wood pulp consumption
15%th, nano-cellulose is not added with as control).
The nano-cellulose addition of table 2 is to reducing the influence of wood pulp cellulose addition
As can be known from Table 2, when the addition of the nanofibrils cellulose of surface carboxyl modification is 0.1%, cigarette is reproduced
The content of wood pulp cellulose is down to 8% by 15% in leaf, and physical strength and the wood pulp cellulose addition of tobacco substrate are 15% phase
Maintain an equal level, even more high.In addition, under equal addition, it is cation-modified after nano-cellulose enhancing effect it is more carboxy-modified
Nano-cellulose will get well, and this explanation surface assigns the generation electric charge suction that positive electricity group is more beneficial for nanofiber and baccy fiber
It is attached.Fig. 3 a are cation-modified nanofibrils cellulose transmission electron microscope picture；Fig. 3 b are fine for the nanofibrils of surface carboxyl modification
The plain transmission electron microscope picture of dimension.As can be seen here, rational nano-cellulose species and addition manner can effectively reduce reconstruction cigarette
The wood pulp cellulose addition of leaf.
Embodiment 3
The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose, concrete operation step is as follows：
1) with the sulfuric acid water of the fento cellulose, fibre length 100-400nm and diameter 5-20nm of unmodified modification
Solution type nanocrystal cellulose is configured to the nano-cellulose aqueous solution that nano-cellulose mass concentration is 0.1%, using at a high speed
Dispersion machine disperses, and obtains nano-cellulose dispersion liquid and to send into holding vessel stand-by；
2) tobacco slurry after configuration mashing；
3) by nano-cellulose dispersion liquid be added to tobacco slurry match somebody with somebody stock tank in.The fibrillation fiber of unmodified modification
The total amount of adding of element and sulphuric acid hydrolysis type nanocrystal cellulose is the 2% of tobacco slurry oven dry weight；
4) manufacture paper with pulp auxiliary agent and filler are added, is manufactured paper with pulp through paper machine and obtains tobacco substrate.
Embodiment 4
The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose, concrete operation step is as follows：
1) the fento cellulose that is modified with surface cationic, surface charge are the surface carboxylic that 0.3-2.0mmol/g is
Nanocrystal cellulose, the fento cellulose of unmodified modification of base modification are configured to nano-cellulose mass concentration and are
The 0.8% nano-cellulose aqueous solution, it is scattered using high speed dispersor, obtain nano-cellulose dispersion liquid and send into holding vessel treating
With；
2) tobacco slurry after configuration mashing；
3) by nano-cellulose dispersion liquid be added to tobacco slurry match somebody with somebody stock tank in.The fibrillation that surface cationic is modified
The total amount of adding of the fento cellulose of cellulose, the nanocrystal cellulose of surface carboxyl modification and unmodified modification is cigarette
The 5% of straw pulp material oven dry weight；
4) manufacture paper with pulp auxiliary agent and filler are added, is manufactured paper with pulp through paper machine and obtains tobacco substrate.
Embodiment 5
The method that wood pulp cellulose in papermaking-method reconstituted tobaccos is reduced using nano-cellulose, concrete operation step is as follows：
1) Nanowire that nano-cellulose mass concentration is 0.3% is configured to the fento cellulose of surface carboxyl modification
The plain aqueous solution of dimension, it is scattered using high speed dispersor, obtain nano-cellulose dispersion liquid and to send into holding vessel stand-by；
2) tobacco slurry after configuration mashing；
3) by nano-cellulose dispersion liquid be added to tobacco slurry match somebody with somebody stock tank in.The fibrillation fiber of surface carboxyl modification
The addition of element is the 1% of tobacco slurry oven dry weight；
4) manufacture paper with pulp auxiliary agent and filler are added, is manufactured paper with pulp through paper machine and obtains tobacco substrate.
Claims (6)
1. using nano-cellulose reduce papermaking-method reconstituted tobaccos in wood pulp cellulose method, it is characterised in that this method be
With being added in stock tank or by nano-cellulose before fan pump in reconstructed tobacco leaf slurry, the nano-cellulose is nanofibrils fiber
One or more in element, nanocrystal cellulose, fento cellulose；The addition of nano-cellulose is tobacco slurry over dry
The 0.01%-5% of weight.
2. the method for wood pulp cellulose in utilization nano-cellulose reduction papermaking-method reconstituted tobaccos according to claim 1, its
It is characterised by, described nanofibrils cellulose is the nanofibrils cellulose of unmodified modification, surface carboxyl modification is received
One or more in the nanofibrils cellulose that rice filament fibers element, surface cationic are modified；The nanocrystal fiber
Element is the one or more in sulphuric acid hydrolysis type nanocrystal cellulose, the nanocrystal cellulose of surface carboxyl modification；It is described
Fento cellulose is the fento cellulose of unmodified modification, the fento cellulose of surface carboxyl modification, surface sun from
One or more in the modified fento cellulose of sonization.
3. the method for wood pulp cellulose in utilization nano-cellulose reduction papermaking-method reconstituted tobaccos according to claim 1 or 2,
Characterized in that, the length of the nanofibrils cellulose is 1-50 μm, diameter 10-40nm；The nanocrystal cellulose
Length is 100-400nm, diameter 5-20nm.
4. the method for wood pulp cellulose in utilization nano-cellulose reduction papermaking-method reconstituted tobaccos according to claim 2, its
It is characterised by, the surface-bound carboxylic content of the nanofibrils cellulose of the surface carboxyl modification is 0.5-1.5mmol/g；Surface sun
The surface charge of the nanofibrils cellulose of Ionization Modification is 0.05-1.0mmol/g；The nanocrystal of surface carboxyl modification is fine
The surface charge of dimension element is 0.3-2.0mmol/g.
5. the method for wood pulp cellulose in utilization nano-cellulose reduction papermaking-method reconstituted tobaccos according to claim 1, its
It is characterised by, the addition of the nano-cellulose is the 0.01%-2% of tobacco slurry oven dry weight.
6. the method for wood pulp cellulose in utilization nano-cellulose reduction papermaking-method reconstituted tobaccos according to claim 1, its
It is characterised by, the nano-cellulose aqueous solution that configuration nano-cellulose mass concentration is 0.1-1% is scattered using high speed dispersor
Afterwards, nano-cellulose dispersion liquid is added to the matching somebody with somebody in stock tank either before fan pump of tobacco slurry.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109629303A (en) * | 2018-12-25 | 2019-04-16 | 浙江恒达新材料股份有限公司 | A kind of high-stiffness suction pipe lining paper and preparation method thereof |
| CN112056609A (en) * | 2020-09-10 | 2020-12-11 | 河南中烟工业有限责任公司 | Production method of heating cigarette paper-making method sheet |
| CN112458797A (en) * | 2020-11-24 | 2021-03-09 | 中国制浆造纸研究院有限公司 | Cigarette filter tip filling paper containing nano-cellulose and preparation method thereof |
| CN113966856A (en) * | 2020-07-23 | 2022-01-25 | 华南理工大学 | Carboxymethylated wood pulp fiber reinforced rolled tobacco sheet and preparation method thereof |
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| CN109629303A (en) * | 2018-12-25 | 2019-04-16 | 浙江恒达新材料股份有限公司 | A kind of high-stiffness suction pipe lining paper and preparation method thereof |
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| CN112458797A (en) * | 2020-11-24 | 2021-03-09 | 中国制浆造纸研究院有限公司 | Cigarette filter tip filling paper containing nano-cellulose and preparation method thereof |
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