CN115868657A - Paper-making reconstituted tobacco and preparation method thereof - Google Patents
Paper-making reconstituted tobacco and preparation method thereof Download PDFInfo
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- CN115868657A CN115868657A CN202211539185.4A CN202211539185A CN115868657A CN 115868657 A CN115868657 A CN 115868657A CN 202211539185 A CN202211539185 A CN 202211539185A CN 115868657 A CN115868657 A CN 115868657A
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Abstract
The invention discloses a paper-making reconstituted tobacco and a preparation method thereof, wherein the preparation method comprises the following steps: crushing the tobacco raw material to obtain superfine tobacco powder, wherein the median particle size is 10.72-139.20 um, and the mass percentage content of the particle size smaller than 20um is 16.64% -81.29%; extracting the superfine tobacco powder, and filtering to obtain an extracting solution and filter residue; concentrating the extracting solution to obtain coating liquid; mixing the filter residue and the cellulose fiber slurry to obtain mixed slurry; manufacturing and molding the mixed slurry by a papermaking process to obtain a film base; and coating the film base by using the coating liquid. Compared with the conventional method, the tensile strength of the reconstituted tobacco provided by the invention is improved by 50-300%, the shredding rate of the reconstituted tobacco in the shredding process is reduced, and the volatile aroma components of tobacco in cell walls are released after cell wall breaking, so that the volatile aroma component content of the reconstituted tobacco product is improved.
Description
Technical Field
The invention relates to the field of manufacturing of heating cigarettes, in particular to paper-making reconstituted tobacco and a preparation method thereof.
Background
The paper-making method for reproducing the tobacco leaves refers to a product which is formed by recombining and processing tobacco wastes such as tobacco stems, tobacco scraps, fragments and the like serving as main raw materials by means of a paper-making technology and equipment. The paper-making reconstituted tobacco effectively utilizes tobacco waste, can reduce the production cost of cigarettes, promotes the harm and tar reduction of cigarette products, improves the smoking quality and promotes the comprehensive quality of the cigarette products. The existing paper-making method reconstituted tobacco has the problems of low tensile strength, high breakage rate and low content of volatile aroma components.
For the problem of low tensile strength of the paper-making method reconstituted tobacco, the tensile strength of the paper-making method reconstituted tobacco is one of important physical indexes, and the tensile strength refers to the maximum tensile force which can be borne by a test sample with unit width before fracture under the conditions specified by a test method and is expressed by kN/m. The paper-making method reconstituted tobacco has certain tensile strength in order to meet the requirement of a later coating process. CN201310269902 chitosan is added in the concentration stage, and the chitosan is used as a wet reinforcing agent to improve the tensile strength of the reconstituted tobacco; CN102823934 chitosan is added into the slurry, and the tensile strength of the film base and the finished product is improved by utilizing the performance of the chitosan retention and drainage aid and the wet reinforcing agent; CN201810089118 the extracted licorice root residue and chrysanthemum residue are added into the tobacco pulp, and the tensile strength of the final reconstituted tobacco finished product is greatly improved by utilizing the characteristics of plant fibers in the licorice root residue and the chrysanthemum residue. However, the above patents all use additives or fibers to improve the tensile strength of the reconstituted tobacco product, but do not start from the characteristics of the tobacco raw material, and improve the tensile strength of the product through the change of physical properties.
For the problem of high breakage rate of the paper-making reconstituted tobacco, the problem of urgent need to be solved for improving the processing resistance of the paper-making reconstituted tobacco in the prior art. The reconstituted tobacco of CN102008122A is directly blended without a high-strength processing technology, so that the resource waste caused by mechanical crushing in the blending processing process of the reconstituted tobacco is reduced; CN103315378A adds chitosan in the concentration stage and the coating liquid, so that the tensile strength of the reconstituted tobacco finished product is improved, and the occurrence of breakage when the reconstituted tobacco is blended into cigarettes for shredding is reduced; CN103849173A uses the moisture absorption and moisture retention type filler in the papermaking or coating stage, so that the moisture absorption and moisture retention performance of the reconstituted tobacco is improved, the difference between the moisture absorption and moisture retention performance of the reconstituted tobacco and natural tobacco is reduced, and the problems of breakage, chipping and the like of the reconstituted tobacco in the papermaking process during tobacco shred manufacturing are effectively reduced. However, the above patents have studied on improving the shredding process or improving functional additives to reduce the shredding rate of the reconstituted tobacco in the shredding process, but do not start from the characteristics of tobacco raw materials, and reduce the shredding rate of the reconstituted tobacco finished product itself by changing the physical properties of the raw materials.
For the problem of low content of volatile aroma components in the paper-making reconstituted tobacco, development technologies for improving the content of the volatile aroma components in the paper-making reconstituted tobacco or improving sensory quality in the prior art are mostly to improve the content of the volatile aroma components or endow special aroma style characteristics to products by the traditional feeding and perfuming mode. But the method does not start from the characteristics of the tobacco raw materials, and improves the content of volatile aroma components of the reconstituted tobacco finished products by breaking the walls of the ultramicro cells of the raw materials.
Therefore, how to provide a preparation method of the paper-making reconstituted tobacco, which can improve the tensile strength of the paper-making reconstituted tobacco, reduce the breakage rate and improve the content of volatile aroma components based on the characteristics of tobacco raw materials, becomes a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a new technical scheme of a preparation method of paper-making reconstituted tobacco, which can improve the tensile strength of the paper-making reconstituted tobacco, reduce the breakage rate and improve the content of volatile aroma components based on the characteristics of tobacco raw materials.
The preparation method of the paper-making reconstituted tobacco comprises the following steps:
step (1): crushing a tobacco raw material to obtain superfine tobacco powder, wherein the median particle size of the superfine tobacco powder is 10.72-139.20 um, and the mass percentage content of the superfine tobacco powder with the particle size smaller than 20um is 16.64% -81.29%;
step (2): extracting the superfine tobacco powder, and filtering to obtain an extracting solution and filter residue;
and (3): concentrating the extracting solution to obtain coating liquid;
and (4): mixing the filter residue and the cellulose fiber slurry to obtain mixed slurry;
and (5): manufacturing and molding the mixed slurry by a papermaking process to obtain a film base;
and (6): and coating the film base by adopting the coating liquid to obtain the paper-making reconstituted tobacco.
Optionally, the tobacco raw material in the step (1) is at least one of tobacco leaf fragments, tobacco stems and tobacco powder.
Optionally, the step (2) is specifically as follows:
uniformly mixing the superfine tobacco powder and water according to the mass ratio of the superfine tobacco powder to the water of (9-10) to (38-42), extracting at 68-72 ℃ for 25-32min, filtering after extraction, and separating liquid from solid to obtain an extracting solution and filter residue.
Optionally, the concentration treatment in the step (3) is a low-temperature pressurization concentration treatment.
Optionally, the preparation process of the cellulose fiber slurry in the step (4) is as follows:
mixing cellulose fibers with water and pulping to obtain cellulose fiber pulp, wherein the cellulose fiber pulp has a Shore beating degree of 20 0 SR-70 0 SR。
Optionally, the absolute dry basis weight of the tablet base in the step (5) is 40g/m 2 -60g/m 2 。
Optionally, the oven dry basis weight of the reconstituted tobacco leaves produced by the paper-making method in the step (6) is 72.5g/m 2 -150g/m 2 。
Optionally, the method further comprises the step (7):
and drying the paper-making reconstituted tobacco under the environment that the temperature is lower than 30 ℃ and the humidity is 20%.
According to a second aspect of the invention, a paper-making reconstituted tobacco is provided.
The paper-making reconstituted tobacco is prepared by the preparation method of the paper-making reconstituted tobacco.
According to the preparation method of the reconstituted tobacco by the paper-making process, provided by the invention, the tobacco raw material cells are subjected to superfine pulverization and crushing treatment, so that the cell walls of the tobacco raw material cells are broken in different proportions, the median particle size of superfine tobacco powder is 10.72-139.20 um, the mass percentage content of the particle size smaller than 20um is 16.64% -81.29%, the tensile strength of the prepared reconstituted tobacco finished product is improved by 50% -300% compared with that of the conventional method, the crushing rate in the shredding process of the reconstituted tobacco finished product is reduced compared with that of the conventional method, and the tobacco volatile aroma components in the cell walls are released after cell wall breaking, so that the content of the volatile aroma components of the reconstituted tobacco product is improved. In addition, through the ultrafine pulverization treatment of the raw materials, fiber molecules, functional groups and free radicals in the ultrafine powder and the cellulose fibers after the devillicate brooming are intertwined with each other to form a compact mesh structure, the ultrafine powder can be filled in the mesh structure, and finally the improvement of the heat conductivity of the reconstituted tobacco product is realized.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The preparation method of the paper-making reconstituted tobacco provided by the invention comprises the following steps:
step (1): the method comprises the following steps of crushing the tobacco raw material to obtain superfine tobacco powder, wherein the median particle size of the superfine tobacco powder is 10.72-139.20 um, and the mass percentage content of the particle size smaller than 20um in the superfine tobacco powder is 16.64% -81.29%.
The tobacco material may be at least one of tobacco leaf fragments, tobacco stems and tobacco dust.
Step (2): extracting the superfine tobacco powder, and filtering to obtain an extracting solution and filter residue.
Specifically, the step (2) may be as follows:
uniformly mixing the superfine tobacco powder and water according to the mass ratio of the superfine tobacco powder to the water of (9-10) to (38-42), extracting at 68-72 ℃ for 25-32min, filtering after extraction, and separating liquid from solid to obtain an extracting solution and filter residue.
And (3): and concentrating the extracting solution to obtain the coating liquid.
The concentration treatment may be low-temperature pressure concentration treatment.
And (4): and mixing the filter residue and the cellulose fiber slurry to obtain mixed slurry.
The preparation process of the cellulose fiber slurry can be as follows:
mixing cellulose fibers with water and pulping to obtain cellulose fiber pulp, wherein the cellulose fiber pulp has a Shore beating degree of 20 0 SR-70 0 SR。
And (5): and (3) manufacturing and molding the mixed slurry by a papermaking process to obtain the film base.
The tablet base may have an oven dry basis weight of 40g/m 2 -60g/m 2 。
And (6): and coating the film base by adopting the coating liquid to obtain the paper-making reconstituted tobacco.
The oven dry ration of the paper-making method reconstituted tobacco can be 72.5g/m 2 -150g/m 2 。
And (7): and drying the paper-making reconstituted tobacco under the environment that the temperature is lower than 30 ℃ and the humidity is 20%.
The experimental procedures used in the examples below are conventional unless otherwise specified, the materials and reagents used therein are commercially available, and the equipment used in the experiments are well known to those skilled in the art without otherwise specified.
Comparative example
Putting 920kg (absolute dry mass) of tobacco raw materials into an extraction tank, adding 4000kg of water into the extraction tank, extracting for 30 minutes at 70 ℃, filtering to obtain an extracting solution and filter residues after extraction is finished, concentrating the extracting solution to obtain a concentrated solution, and taking the concentrated solution as a coating solution for later use; pulping the tobacco residue according to pulping process of paper-making reconstituted tobacco, wherein the pulp has a Shoebuer beating degree of 40 0 And SR, preparing the tobacco pulp for later use. 80kg of wood pulp is taken and pulped according to the pulping process of the paper-making reconstituted tobacco, and the Shoubule beating degree of the pulp is 40 0 SR, mixing the tobacco pulp and the cellulose fiber pulp together after pulping, fully stirring and uniformly mixing, and then adopting a papermaking method reconstituted tobacco sheet base papermaking forming process to prepare the sheet base, wherein the absolute dry basis weight of the sheet base is 55g/m 2 (ii) a Coating the coating liquid on the base sheet according to the coating process of the paper-making reconstituted tobacco, and controlling the absolute dry ration of the coated reconstituted tobacco to be 105g/m 2 And drying to obtain the reconstituted tobacco.
Examples
Crushing a tobacco raw material by using crushing equipment to prepare superfine tobacco powder, wherein the median particle size (D50) of the superfine tobacco powder is 53.93um, the content of the particle size is less than 20um and is 22.61wt%, putting 920kg (absolute dry mass) of the superfine tobacco powder into an extraction tank, adding 4000kg of water into the extraction tank, extracting for 30 minutes at 70 ℃, filtering to obtain an extracting solution and filter residue after extraction is finished, concentrating the extracting solution to obtain a concentrated solution, and taking the concentrated solution as a coating liquid for later use; taking 80kg of wood pulp, pulping according to the pulping process of the paper-making reconstituted tobacco, wherein the Shoebuer beating degree of the pulp is 40 0 SR, pulpingMixing the tobacco powder residue and cellulose fiber slurry, stirring, and making into sheet base with basis weight of 55g/m 2 (ii) a Coating the coating liquid on the base sheet according to the coating process of the paper-making reconstituted tobacco, and controlling the absolute dry ration of the coated reconstituted tobacco to be 105g/m 2 And drying to obtain the reconstituted tobacco.
The tensile strengths of the reconstituted tobaccos prepared in the comparative examples and the examples were measured, and the tensile strength of the reconstituted tobaccos in the comparative examples was 536N/m, and the tensile strength of the reconstituted tobaccos in the examples was 1151N/m.
The shredding and shredding rates of the reconstituted tobacco prepared in the comparative example and the example were measured, and the shredding and shredding rate of the reconstituted tobacco in the comparative example was 10.11%, and the shredding and shredding rate of the reconstituted tobacco in the example was 6.06%.
The volatile aroma components of the reconstituted tobaccos prepared in the control examples and the examples are detected, and the results are as follows:
the heat conductivity of the reconstituted tobacco prepared in the comparative example and the embodiment is detected, the heat conductivity of the reconstituted tobacco in the comparative example is 0.0670W/mK, and the heat conductivity of the reconstituted tobacco in the embodiment is 0.1150W/mK.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. The preparation method of the paper-making reconstituted tobacco is characterized by comprising the following steps:
step (1): crushing a tobacco raw material to obtain superfine tobacco powder, wherein the median particle size of the superfine tobacco powder is 10.72-139.20 um, and the mass percentage content of the superfine tobacco powder with the particle size smaller than 20um is 16.64% -81.29%;
step (2): extracting the superfine tobacco powder, and filtering to obtain an extracting solution and filter residue;
and (3): concentrating the extracting solution to obtain coating liquid;
and (4): mixing the filter residue and the cellulose fiber slurry to obtain mixed slurry;
and (5): manufacturing and molding the mixed slurry by a papermaking process to obtain a film base;
and (6): and coating the film base by adopting the coating liquid to obtain the paper-making reconstituted tobacco.
2. The method for preparing paper-making reconstituted tobacco according to claim 1, wherein the tobacco raw material in the step (1) is at least one of tobacco fragments, tobacco stems and tobacco dust.
3. The method for preparing reconstituted tobacco through the papermaking method according to claim 1, wherein the step (2) is as follows:
uniformly mixing the superfine tobacco powder and water according to the mass ratio of the superfine tobacco powder to the water of (9-10) to (38-42), extracting at 68-72 ℃ for 25-32min, filtering after extraction, and separating liquid from solid to obtain an extracting solution and filter residue.
4. The method for preparing reconstituted tobacco by a papermaking process according to claim 1, wherein the concentration treatment in the step (3) is low-temperature pressurization concentration treatment.
5. The method for preparing reconstituted tobacco through a papermaking method according to claim 1, wherein the cellulose fiber slurry in the step (4) is prepared through the following process:
mixing cellulose fibers with water and pulping to obtain cellulose fiber pulp, wherein the cellulose fiber pulp has a Shore beating degree of 20 0 SR-70 0 SR。
6. The method for preparing reconstituted tobacco by a papermaking process according to claim 1, wherein the oven dry basis weight of the base sheet in the step (5) is 40g/m 2 -60g/m 2 。
7. The method for preparing reconstituted tobacco by a papermaking process according to claim 1, wherein the oven dry basis weight of the reconstituted tobacco by a papermaking process in the step (6) is 72.5g/m 2 -150g/m 2 。
8. The method for preparing paper-making reconstituted tobacco according to any one of claims 1 to 7, characterized by further comprising the step (7):
and drying the paper-making reconstituted tobacco under the environment that the temperature is lower than 30 ℃ and the humidity is 20%.
9. A paper-making process reconstituted tobacco, characterized by being prepared by the method for preparing paper-making process reconstituted tobacco according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211539185.4A CN115868657A (en) | 2022-12-01 | 2022-12-01 | Paper-making reconstituted tobacco and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211539185.4A CN115868657A (en) | 2022-12-01 | 2022-12-01 | Paper-making reconstituted tobacco and preparation method thereof |
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| CN115868657A true CN115868657A (en) | 2023-03-31 |
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| CN202211539185.4A Pending CN115868657A (en) | 2022-12-01 | 2022-12-01 | Paper-making reconstituted tobacco and preparation method thereof |
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