CN113892671B - Method for preparing eggplant coat and eggplant sleeve based on dry-process slice technology - Google Patents
Method for preparing eggplant coat and eggplant sleeve based on dry-process slice technology Download PDFInfo
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- CN113892671B CN113892671B CN202111215998.3A CN202111215998A CN113892671B CN 113892671 B CN113892671 B CN 113892671B CN 202111215998 A CN202111215998 A CN 202111215998A CN 113892671 B CN113892671 B CN 113892671B
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- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 claims description 4
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 claims description 4
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- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 claims description 2
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 claims description 2
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- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
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- 229960002635 potassium citrate Drugs 0.000 description 1
- 239000001508 potassium citrate Substances 0.000 description 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
- A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
Abstract
The invention provides a method for preparing eggplant clothes and eggplant sleeves based on a dry-method slice technology, and belongs to the technical field of eggplant clothes and eggplant sleeves. A method for preparing eggplant coat and eggplant sheath based on dry-process sheet technology comprises the following steps; cutting tobacco stems into tobacco stem sections; (2) mechanically disc-grinding the tobacco stem sections into crude tobacco stem fibers; (3) adopting airflow forming to prepare a tobacco substrate; (4) Stirring and mixing the binder and the tobacco powder to obtain a sticky filling mixture; (5) Diffusing the adhesive filling mixture into the tobacco substrate through first venturi atomization to obtain a first tobacco substrate semi-finished product; (6) Dispersing glycerin into the first tobacco substrate semi-finished product to obtain a second tobacco substrate semi-finished product; and (7) carrying out mechanical hot pressing to obtain the eggplant coat or eggplant sleeve. The method of the invention can keep the original natural fragrant components of the tobacco raw materials. The color and the thickness of the product are uniform, and the wet strength of the product can be improved through the formation of the interpenetrating network structure of the binder.
Description
Technical Field
The invention belongs to the technical field of eggplant clothes and eggplant covers, and particularly relates to a method for preparing eggplant clothes and eggplant covers based on a dry-process slice technology.
Background
The traditional cigar consists of a cigar core, a cigar sleeve and a cigar coat which are all prepared from natural tobacco leaves. The eggplant is collected by tobacco growers in a bundle of 50 leaves during the harvest period, and is sent to a warehouse for drying treatment, wherein the temperature and the humidity need to be carefully controlled (the state of Connecticut in the United states adopts a gas furnace to carefully heat)
The outermost layer of cigar is called eggplant coat, also called wrapping leaf, and is the leaf in the middle section range of the plant. Is also the most important part of a tobacco plant. The requirements of raw materials and processes are also the highest. The greenhouse planting with extremely high cost is to grow the eggplant in the middle section of the plant. The control of the oil content and thickness of the eggplant coat is more strict than that of other parts of the leaves of the eggplant plant.
Different colors are created in different producing areas of the tobacco leaves, and the difference in taste also appears. The high quality eggplant is very elastic and has no prominent veins, and the longer the growing time is, the better. In a sense, the quality standard for testing a cigar tobacco is to see its eggplant growth. Some of the origin tobacco leaf material, 1, clio-Aoshenderris leaves; grown in the san andelie valley of depressed allium fistulosum in mexico, whole leaves were used to produce savory cigars. 2. Jin Ke saint anderis of rio; as its name suggests, palatable, moderately strong. 3. San anderlce Morron leaf; moderately strong, dark-colored, darker leaves, growing in the san andelies valley of mexico, which are strong and fragrant. 4. Honduras Connecticut leaves are covered; connecticut covers tobacco plants and has an ideal balance between colour and flavour, intensity. 5. The covering leaves of ecuador, connecticut; the seeds using the Connecticut leaves covered are more palatable and richer in color than the Connecticut leaves covered. 6. Eichoudor Sumenglans leaf; using the seeds of St.Sumendora, leaves were produced with a bland taste and a slightly sweet taste. 7. Connecticut covers (USA) leaves; mild to moderate taste, smooth mouthfeel, uniform color tone, and growth in Huishatong, connecticut. 8. A Connecticut broadleaf; thick leaves, greasy, also growing in connecticut, rich in taste and aroma. 9. (iii) leaves of Kemylon; thin leaves, the Bertoua area of west non-karyon, grow with a light taste and a sweet aroma. 10. Dominica lampshade leaves; moderately mellow, typically planted in dominican puros. 11. Nigala melon leaves; copa seeds, grown on nigla melon, only the thickest leaf with the highest flavor is taken as raw material. 12. Nikka valley (also simply referred to as "tobacco valley") is the most robustly and precious raw material for eggplant leaves. 13. The best connecticut shade (usa) leaf is preferred, grown in connecticut. 14. Leaves of Indonesia TBN; light color but rich smell.
At present, most of the eggplant coats and eggplant covers used in the production process of cigars are imported tobacco products, and the problems of high price, resource shortage and the like exist. On the other hand, the processing technology of the cigar coat and the cigar sleeve is complex, the tobacco leaves can be processed into the cigar coat and the cigar sleeve only through the procedures of fermentation, leaf moistening, manual screening and the like due to the characteristics of the tobacco leaves, and the problems of long process period, high waste, dependence on subjective judgment standards of people and the like exist. The cigar tobacco planting has two modes of covering planting and non-covering planting, the covering planting causes the growth and development of leaves to be incomplete, the grown tobacco leaves are also very thin, the veins of the leaves are thin and weak, so that the organic matters and tobacco tar contained in the tobacco leaves are not too much, and the tobacco leaves are smooth, young and fine and have smooth and perfect appearance.
The published Chinese patent with the application number of CN201210387786.8 discloses a method for manufacturing a paper eggplant coat or a paper eggplant sleeve for cigar cigarettes, which aims to overcome the defects of incomplete extracted aroma substances, poor control of air permeability, low quality and the like in the prior art. The technical scheme is as follows: the process is characterized in that (1) part of the tobacco powder is added with water for extraction and concentrated into water extract with the concentration of 36 to 38 percent; (2) extracting the other part of the tobacco powder with alcohol, and concentrating into alcohol extract with concentration of 36-38%; (3) defibering and pulping the tobacco stems into tobacco pulp with the beating degree of 25-75 DEG SR; (4) beating softwood pulp into external fiber pulp with the beating degree of 25-75 DEG SR; (5) mixing the tobacco pulp, the outer fiber pulp and calcium carbonate to obtain mixed pulp; (6) making base sheet paper by the mixed slurry; (7) mixing the water extract, the alcohol extract, the pigment for cigarettes and potassium citrate to form coating liquid; (8) coating the coating liquid on base paper with a coating weight of 6 to 14g/m 2 Drying to obtain a whole roll of finished paper; (9) the paper cigar wrapper or paper cigar sleeve can be directly used for machine-made cigar cigarettes after being cut into the bobbin paper with the set width.
In the prior art, the preparation process of the cigar coat-type cigar sleeve needs to dry the cigar tobacco leaves, the phenomenon of uneven quality is easily caused in the drying process, and the stability of the quality of the product cannot be ensured. The Chinese patent with the application number of CN201210387786.8 discloses a novel preparation method of an eggplant jacket, the paper eggplant jacket or the paper eggplant jacket prepared by the method has uneven combustion performance, poor wet strength and difficult control of the thickness of the eggplant jacket and the paper eggplant jacket. At present, the production of the reconstituted cigar coat and the cigar sleeve almost adopts a wet paper-making process, and mostly adopts added paper pulp fibers, the appearances of the prepared cigar coat, the cigar sleeve and paper after paper making and press polishing forming are more approximate, the tobacco leaves vein textures are lacked, and the wet strength is low; in addition, in the traditional process, the paper-based sheet is coated by extracting tobacco extract, the process of extracting the tobacco extract is complex, a large amount of waste water is generated, meanwhile, tobacco pigments in tobacco stems are difficult to enrich, the loss degree of tobacco aroma components is high, the original natural aroma of tobacco raw materials cannot be maintained, and the efficient utilization of the tobacco stem raw materials cannot be realized.
Disclosure of Invention
In view of the above, the invention provides a method for preparing eggplant coats and eggplant covers based on a dry-method sheet technology, which is simple in operation, free of a large amount of waste water, beneficial to realizing efficient utilization of tobacco stem raw materials, free of loss of tobacco pigments in the tobacco stems, and capable of retaining original natural fragrant components of the tobacco raw materials. And (3) reconstructing the bionic tobacco sheet with the interpenetrating network structure by adopting a hot pressing method, adjusting the color and the thickness of the product, obtaining the cigar coat and the cigar sleeve with uniform thickness and controllable color and luster, and improving the appearance quality of the product. The wet strength of the product can be improved by the formation of an interpenetrating network structure of the binder.
The invention relates to a method for preparing eggplant clothes and eggplant covers based on a dry-method sheet technology, which comprises the following steps;
(1) Cutting tobacco stems into tobacco stem sections, wherein the length of each tobacco stem section is 2-6cm, and putting the tobacco stem sections into a winnowing machine for impurity removal;
(2) Mechanically grinding the tobacco stem sections into tobacco stem crude fibers, wherein the mechanical grinding process parameters are as follows: adopting a sticky pulping process, wherein the pulping concentration is 10-15%, the pulp throughput is 100-300kg/h, the pulping temperature is 30-60 ℃, and the disc mill gap is as follows: 0.1-0.3mm; and (3) slurry discharging state: the beating degree is 20-40 degrees SR, the water content is 8-20 percent, and the fiber length is 0.5-1.0mm;
(3) The tobacco stem crude fiber has a loose three-dimensional net structure by adopting an air flow forming mode to prepare a tobacco substrate, wherein the quantitative (mass per unit area) of the tobacco stem fiber on the tobacco substrate is 20-50g/m 2 ；
(4) Stirring and mixing a binder (LCC) and tobacco powder (the temperature during stirring is 40-60 ℃) to obtain a sticky filling mixture, wherein the mass ratio of the binder to the tobacco powder is 1-95 to 100 so as to regulate the fragrance of the tobacco sheet, and the particle size of the tobacco powder can be as follows: 200-300 meshes;
(5) Diffusing the adhesive filling mixture into the tobacco substrate by first Venturi atomization to diffuse the adhesive filling mixture into the tobacco substrate, wherein the LCC accounts for 50-80% of the total LCC (deeply diffuses into the structural loose substrate in the step (3) and is bonded on the surface of the fiber skeleton, so as to be beneficial to later strengthening of the staggered three-dimensional network tissue), and the quantitative determination (the quantitative determination refers to the content of solid matters in the tobacco substrate) is 90-100g/m 2 Obtaining a first tobacco substrate semi-finished product, wherein the wet strength range of the first tobacco substrate semi-finished product is 0.26-0.50KN/m, the diffusion time of the first Venturi atomization is 5-20s, and the pressure of a spray gun is 0.24-0.34Mpa, spray gun flow rate of 200-800ml/min, atomization time of 0.01-0.1s;
(6) Dispersing the glycerol into the first tobacco substrate semi-finished product through second Venturi atomization (the experimental conditions of the current Venturi atomization can be referred to in the step (5)), so that the quantitative improvement of the first tobacco substrate semi-finished product is 110-120g/m 2 Wherein the glycerol is quantified at 10-20 g/m 2 Obtaining a second tobacco substrate semi-finished product;
(7) And (3) mechanically hot-pressing the second tobacco substrate semi-finished product at the temperature of 80-200 ℃, wherein the pressure of the mechanical hot-pressing is 6-14 MPa, and the time is 5-10min, so that the adhesive filling mixture in the second tobacco substrate semi-finished product structure is subjected to self-condensation to form a secondary network structure, and the eggplant or eggplant sleeve is obtained, the surface is smoother, and the strength is further improved. Based on a cell embedding technology, the state of the LCC and the glycerol superfluid is transferred to a fiber cell cavity by regulating and controlling the pressure and temperature threshold, and meanwhile, the embedded LCC is subjected to self-condensation under the heating condition to form a secondary network structure to obtain the cigar coat and eggplant sleeve with excellent mechanical property and uniform color. The fiber on the fiber cell wall of the cigar coat and the cigar sheath is arranged in a double helix way with the fiber axis, the angle is 60-90 degrees, the inner bonding strength is higher, the thickness is 0.05-0.13 mm, the tensile strength is 0.5-1.0 KN/m, the wet strength is 0.40-0.70 KN/m, the elongation is 2.0-10.0 percent, and the burst index is 1.0-5.0 kPa · m 2 Per g, roughness 10-100 μm, to replace natural cigar coats and jackets.
Analysis of the fiber and fiber axis on the fiber cell wall of the prepared cigar coat and sheath in a double helix arrangement: the plant fiber is a compact microstructure formed by closely contacting and arranging micron-diameter natural plant cell units, and the natural plant cell units are spirally arranged along the axial direction according to a certain angle; natural plant cell units are solid structures composed of nanocellulose fibers. The fiber with ultrahigh mechanical property is obtained by treating through a dune atomization technology and an ultrahigh pressure technology, directly drying, twisting and drying the fiber. The alignment angle is from 40 to 60 degrees from the original angle and reaches 60 to 90 degrees after treatment.
Mechanical hot pressing can also play a role in forced drying, and compared with the traditional drying mode, the forced drying enables the fibers to become smoother, stiffer and flat, and reduces the swelling capacity of the fibers. Different drying modes do not change the crystal structure of the fiber, but obviously affect the content of hydrogen bonds in different modes and the fiber arrangement. Compared with the fiber in the traditional drying mode, the content of intermolecular hydrogen bonds O (6) H … O (3') of the fiber after forced drying is obviously increased by 20-30%, while the total content of intramolecular hydrogen bonds O (2) H … O (6) and O (3) H … O (5) is reduced by 10-20%, so that the pore of the fiber cell wall is partially irreversibly closed, and simultaneously, the cell cavity is collapsed by forced drying, the fiber structure is more regular, compact and stiff, and the spiral arrangement and the crystallite cross-sectional area of the fiber can be obviously increased due to the change of the hydrogen bond content.
The binder is a mixture of lignin and carbohydrate, and the mass ratio of the lignin to the carbohydrate is 3:6-7. The lignin-carbohydrate complex binder (LCC) is a complex formed by combining lignin and carbohydrates (hemicellulose polysaccharide) which are one or two of pentose and hexose and exist in a fiber raw material, wherein the carbohydrates are one or more of xylose, arabinose and galactose through chemical bonds, and the connecting bonds are 4 types of benzyl ether bonds, ester bonds, phenyl glycoside bonds and hemiacetal bonds or acetal bonds. LCC is herein defined as LCC extracted from tobacco stem material. The adhesive has good biocompatibility.
The method firstly utilizes a mechanical disc grinding method to process the tobacco stems to obtain tobacco stem fibers with loose structures to replace paper pulp fibers. The tobacco stalk fiber is used as a framework of the sheet, and the structure of the natural tobacco leaves is restored to keep the original fragrant components of the tobacco. The fine structure of the tobacco stalk fiber cell wall has obvious primary wall, secondary wall and intercellular layer structure, and the fiber on the fiber cell wall and the fiber axis are arranged in a double helix. The lignin-carbohydrate complex (LCC) derived from plant bodies is used as an adhesive to replace a chemical adhesive to bond tobacco powder and tobacco stalk fibers, and the absorption and other physical and chemical indexes of the LCC adhesive are regulated and controlled by the structure of the three-dimensional accumulation tissue of the tobacco stalk fibers, so that the vein structure of the bionic tobacco is realized, the wet strength of cigar coats and cigar sleeves is improved, and the physical and chemical properties similar to those of natural cigar leaves are achieved; through hot pressing treatment and regulation and control of hot pressing threshold temperature, the tobacco components generate Maillard reaction, the appearance colors of the cigar coat and the cigar sleeve can be effectively improved, and the bulk of the product can be adjusted by controlling the linear pressure of high-speed rolling. In the hot pressing process, the LCC binder and the glycerol are embedded into plant cell walls, the binder is connected with the crude fiber of the tobacco stems which are specially wound by a tie through chemical bonds to form a host-guest interpenetrating network structure, and the staggered structure strengthens the internal bonding strength of the three-dimensional network-based composite tobacco sheets and improves the burst strength and the wet strength of the sheets. The invention is an innovation of the traditional production technology of the reconstructed cigar coat and cigar sheath, simulates the vein structure of natural plants, reserves the original fragrance components of tobacco stems, can improve the color controllability of the cigar coat and the cigar sheath and effectively improve the sensory quality of products by the technology, and replaces the natural cigar coat and the cigar sheath.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
Example 1
The invention relates to a method for preparing eggplant clothes and eggplant covers based on a dry-method sheet technology, which comprises the following steps;
(1) Cutting tobacco stems into tobacco stem sections with the length of 2cm, and putting the tobacco stem sections into a winnowing machine for removing impurities;
(2) Mechanically disc-grinding the tobacco stem sections into tobacco stem crude fibers;
(3) The tobacco stem crude fiber has a loose three-dimensional net structure by adopting an air flow forming mode to prepare a tobacco substrate, wherein the quantitative (mass per unit area) of the tobacco stem fiber on the tobacco substrate is 20g/m 2 ；
(4) Stirring and mixing a binder (LCC) and tobacco powder (the temperature during stirring is 40-60 ℃) to obtain a sticky filling mixture, wherein the mass ratio of the binder to the tobacco powder is 1;
(5) Diffusing the adhesive filler mixture to the tobacco base by first venturi atomizationThe tobacco flakes (which are deeply diffused into the loose structured substrate in the step (3) and are bonded on the surface of the fiber skeleton, so as to be beneficial to later strengthening of the interlaced three-dimensional network tissue) are subjected to quantitative analysis (the quantitative analysis refers to the content of solid matters in the tobacco flakes) of 90g/m 2 Obtaining a first tobacco substrate semi-finished product, wherein the wet strength of the first tobacco substrate semi-finished product is 0.26KN/m, the diffusion time of the first Venturi atomization is 5s, the pressure of a spray gun is 0.24Mpa, the flow rate of the spray gun is 200ml/min, and the atomization time is 0.01s;
(6) Dispersing glycerin into the first tobacco substrate semi-finished product by second Venturi atomization, so that the quantitative improvement of the first tobacco substrate semi-finished product is 110g/m 2 Wherein the glycerol ration is 10g/m 2 Obtaining a second tobacco substrate semi-finished product;
(7) Mechanically hot-pressing the second tobacco substrate semi-finished product at 80 deg.C under 6 MPa for 5min to make the adhesive filling mixture in the second tobacco substrate semi-finished product self-condense to form a secondary network structure to obtain the cigar coat or cigar sleeve, wherein the fiber and fiber axis on the fiber cell wall of the cigar coat and cigar sleeve are arranged in a double helix manner, the angle is 60-90 deg., the inner bonding strength is high, the thickness is 0.05mm, the tensile strength is 0.5 KN/m, the wet strength is 0.40KN/m, the elongation is 2.0%, and the burst index is 1.0-5.0 kPa · m% 2 Per g, roughness 10-100 μm, to replace natural cigar coats and jackets.
Example 2
The invention relates to a method for preparing eggplant clothes and eggplant covers based on a dry-method sheet technology, which comprises the following steps;
(1) Cutting tobacco stems into tobacco stem sections, wherein the length of each tobacco stem section is 6cm, and putting the tobacco stem sections into a winnowing machine for removing impurities;
(2) Mechanically disc-grinding the tobacco stem sections into tobacco stem crude fibers;
(3) The tobacco stem crude fiber has a loose three-dimensional net structure by adopting an airflow forming mode to prepare a tobacco substrate, wherein the quantification (unit refers to the mass per unit area) of the tobacco stem fiber on the tobacco substrate is 50g/m 2 ；
(4) Stirring and mixing a binder (LCC) and tobacco powder (the temperature during stirring is 40-60 ℃) to obtain a sticky filling mixture, wherein the mass ratio of the binder to the tobacco powder is 1;
(5) Diffusing the adhesive filling mixture into the tobacco substrate (deeply diffusing to the structurally loose substrate in the step (3) and adhering to the surface of the fiber framework, so as to be beneficial to later-stage staggered three-dimensional network tissue enhancement) through first Venturi atomization, and enabling the quantitative amount of the adhesive filling mixture to be 100g/m 2 Obtaining a first tobacco substrate semi-finished product, wherein the wet strength range of the first tobacco substrate semi-finished product is 0.50KN/m, the diffusion time of the first Venturi atomization is 20s, the pressure of a spray gun is 0.34Mpa, the flow rate of the spray gun is 800ml/min, and the atomization time is 0.1s;
(6) Dispersing the glycerol into the first tobacco substrate semi-finished product by second Venturi atomization to increase the quantitative rate of the first tobacco substrate semi-finished product to 120g/m 2 Wherein the glycerol quantification is 20g/m 2 Obtaining a second tobacco substrate semi-finished product;
(7) Mechanically hot-pressing the second tobacco substrate semi-finished product at 200 ℃, wherein the pressure of the mechanical hot-pressing is 14 MPa, the time is 10min, so that the adhesive filling mixture in the structure of the second tobacco substrate semi-finished product is self-condensed to form a secondary network structure, and the eggplant or the eggplant sheath is obtained, fibers on fiber cell walls of the prepared cigar coat and the eggplant sheath are in double-spiral arrangement with fiber axes, the angle is 60-90 degrees, the inner bonding strength is higher, the thickness is 0.13 mm, the tensile strength is 1.0 KN/m, the wet strength is 0.70 KN/m, the elongation is 10.0%, and the burst index is 1.0-5.0 kPa · m 2 Per g, roughness 10-100 μm, to replace natural cigar coats and jackets.
Example 3
The invention relates to a method for preparing eggplant clothes and eggplant covers based on a dry-method sheet technology, which comprises the following steps;
(1) Cutting tobacco stems into tobacco stem sections with the length of 4cm, and putting the tobacco stem sections into a winnowing machine for removing impurities;
(2) Mechanically disc-grinding the tobacco stem sections into tobacco stem crude fibers;
(3) The tobacco stem crude fiber has a loose three-dimensional net structure by adopting an airflow forming mode to prepare a tobacco substrate, wherein the quantitative amount of the tobacco stem fiber on the tobacco substrate is 40g/m 2 ；
(4) Stirring and mixing a binder (LCC) and tobacco powder (the temperature during stirring is 40-60 ℃) to obtain a sticky filling mixture, wherein the mass ratio of the binder to the tobacco powder is 1;
(5) Diffusing the adhesive filling mixture into the tobacco substrate (deeply diffusing to the loose structured substrate in the step (3) and adhering to the surface of the fiber framework, so as to be beneficial to enhancing the later staggered three-dimensional network tissue) through first Venturi atomization, and enabling the quantitative amount of the adhesive filling mixture to be 95g/m 2 Obtaining a first tobacco substrate semi-finished product, wherein the wet strength range of the first tobacco substrate semi-finished product is 0.30KN/m, the diffusion time of the first Venturi atomization is 10s, the pressure of a spray gun is 0.3Mpa, the flow rate of the spray gun is 500ml/min, and the atomization time is 0.07s;
(6) Dispersing glycerin into the first tobacco substrate semi-finished product by second Venturi atomization, so that the quantitative improvement of the first tobacco substrate semi-finished product is 115g/m 2 Wherein the glycerol quantification is 15g/m 2 Obtaining a second tobacco substrate semi-finished product;
(7) Mechanically hot-pressing the second tobacco substrate semi-finished product at 150 ℃, wherein the pressure of the mechanical hot-pressing is 10 MPa, and the time is 8min, so that the adhesive filling mixture in the structure of the second tobacco substrate semi-finished product is self-condensed to form a secondary network structure, and the eggplant or the eggplant sheath is obtained, fibers and fiber axes on fiber cell walls of the prepared cigar coat and the cigar sheath are in double-helix arrangement, the angle is 60-90 degrees, the inner bonding strength is higher, the thickness is 0.10 mm, the tensile strength is 0.8 KN/m, the wet strength is 0.6 KN/m, the elongation is 7.0%, and the burst index is 1.0-5.0 kPa · m 2 Per g, roughness 10-100 μm, to replace natural cigar coats and jackets.
The process method is simple to operate, does not generate a large amount of waste water, is beneficial to realizing the high-efficiency utilization of the tobacco stem raw material, does not lose tobacco pigments in the tobacco stem, and can keep the original natural fragrant components of the tobacco raw material. And (3) reconstructing the bionic tobacco sheet with the interpenetrating network structure by adopting a hot pressing method, adjusting the color and the thickness of the product, obtaining the cigar coat and the cigar sleeve with uniform thickness and controllable color and luster, and improving the appearance quality of the product. The wet strength of the product can be improved through the formation of the interpenetrating network structure of the binder, and the improvement of the yield in the cigar manufacturing process is facilitated.
The present invention is not limited to the above-described specific embodiments, and various modifications and changes can be made to the present invention. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. A method for preparing eggplant clothes and eggplant covers based on a dry method sheet technology is characterized by comprising the following steps;
(1) Cutting tobacco stems into tobacco stem sections, putting the tobacco stem sections into a winnowing machine, and removing impurities;
(2) Mechanically disc-grinding the tobacco stem sections into tobacco stem crude fibers;
(3) The tobacco stem crude fiber is provided with a loose three-dimensional reticular structure by adopting an airflow forming mode to prepare a tobacco substrate;
(4) Stirring and mixing a binder and tobacco powder to obtain a sticky filling mixture, wherein the mass ratio of the binder to the tobacco powder is 1;
(5) Diffusing the adhesive filler mixture into the tobacco substrate by first venturi atomization so that it has a basis weight of 90-100g/m 2 Obtaining a first tobacco substrate semi-finished product, wherein the wet strength of the first tobacco substrate semi-finished product is 0.26-0.50KN/m;
(6) Dispersing glycerin into the first tobacco substrate semi-finished product by second Venturi atomization, so that the quantitative rate of the first tobacco substrate semi-finished product is increased to 110-120g/m 2 Wherein the glycerol is quantified at 10-20 g/m 2 Obtaining a second tobacco substrate semi-finished product;
(7) Mechanically hot-pressing the second tobacco substrate semi-finished product at 80-200 ℃ to enable the adhesive filling mixture in the second tobacco substrate semi-finished product structure to self-condense to form a secondary network structure, so as to obtain an eggplant coat or an eggplant sleeve;
wherein, the diffusion time of the first Venturi atomization is 5-20s, the pressure of the spray gun is 0.24-0.34Mpa, the flow of the spray gun is 200-800ml/min, and the atomization time is 0.01-0.1s; the pressure of the mechanical hot pressing is 6-14 MPa, and the time is 5-10min.
2. The method for preparing eggplant coat and eggplant sleeve based on the dry flake technique as claimed in claim 1, wherein the binder is a mixture of lignin and carbohydrate, and the mass ratio of the lignin to the carbohydrate is 3:6-7.
3. The method for preparing eggplant and eggplant sleeve based on the dry flake technique of claim 2, wherein the carbohydrate is one or both of a five-carbon sugar and a six-carbon sugar.
4. The method for preparing eggplant and eggplant sleeve based on the dry flake technique of claim 3 wherein the carbohydrate is one or more of xylose, arabinose, galactose.
5. The method for preparing eggplant clothes and eggplant covers based on the dry-method sheet technology as claimed in claim 1, wherein the basis weight of the cabo fibers on the tobacco substrate in the step (3) is 20-50g/m 2 。
6. The method for preparing eggplant and eggplant sleeve on the basis of the dry sheet technology as claimed in claim 1, wherein the length of the tobacco stem sections is 2 to 6cm.
7. The method for preparing eggplant clothing and eggplant sleeve based on the dry flake technique as claimed in claim 1, wherein the eggplant clothing or eggplant sleeve in step (7) has a thickness of 0.05 to 0.13 mm, a tensile strength of 0.5 to 1.0 KN/m, a wet strength of 0.40 to 0.70 KN/m, and an elongation of 2.0 to 10.0%.
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