CN111358036A - Sheet for tobacco products containing lyocell fiber and heat-non-combustible tobacco products - Google Patents
Sheet for tobacco products containing lyocell fiber and heat-non-combustible tobacco products Download PDFInfo
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- CN111358036A CN111358036A CN202010009617.5A CN202010009617A CN111358036A CN 111358036 A CN111358036 A CN 111358036A CN 202010009617 A CN202010009617 A CN 202010009617A CN 111358036 A CN111358036 A CN 111358036A
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- 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
Abstract
The present invention relates to a novel sheet for tobacco products containing lyocell fibers, a method for producing the same, and a heat non-combustible tobacco product containing the sheet. The sheet contains lyocell fibres in an amount of 3 to 9 wt%, preferably 3 to 6 wt%, based on the weight of the finished sheet. The method for manufacturing the sheet is to produce the sheet by a paper making method, wherein in the paper making method, the raw material composition comprises the following components in parts by weight: 1-18 parts of lyocell fiber.
Description
Technical Field
The invention relates to the field of tobacco, in particular to a sheet containing lyocell fibers for tobacco products, and more particularly relates to a heating non-combustion papermaking sheet containing lyocell fibers and a heating non-combustion tobacco product.
Background
A cigarette (HnB) is a novel tobacco product, and is characterized in that when smoking, the cigarette is heated without burning, aerosol is formed when heating, and smoke is generated by volatilization of fogging agent, nicotine and aroma substance. The cigarette which is heated and does not burn is mainly heated by the heat source and the cigarette bullet is smoked, and the smoke which is inhaled by the consumer is generated in the non-burning state. This unique approach reduces the harmful smoke components produced by combustion and thermal cracking in conventional cigarettes, and does not produce sidestream smoke.
The sheet can be classified into a dry method, a roll method, a thick pulp method, a paper making method, and the like, depending on the processing technique. The papermaking method is a common preparation method in the field of traditional cigarette sheets, and a sheet product is obtained through the steps of extraction, concentration, coating liquid preparation, pulping, functional substrate papermaking and forming, coating, drying and the like.
The performance of the sheet adsorption and smoke agent loading (glycerin, propylene glycol and the like) of the heating non-combustion papermaking method has key influence on the smoking and smoke release effect and the sensory quality of the sheet product. In the prior art of producing the sheet by the paper-making method in China, the added fiber is generally one or more plant fibers such as bamboo fiber, softwood fiber, hardwood fiber, flax fiber, grass fiber and the like. The added fiber is mainly used for forming a connecting framework and increasing the tensile strength of the product in the traditional paper-making method sheet product. The saturated adsorption capacity of the plant fibers in the added fibers is poor, the maximum equilibrium adsorption capacity of the smoke agent in the slices can be influenced, and the problems that the smoke release amount is insufficient, the sensory quality is poor and wood miscellaneous gas is heavy when a sample which is not burnt is heated and sucked are caused.
Thus, there remains a need in the art for products having high smoke adsorbent properties, increased smoke delivery and improved sensory smoking quality.
Disclosure of Invention
The inventors of the present invention have unexpectedly found that: by adding lyocell fibers into the sheet for tobacco products, the smoke agent adsorption performance is obviously improved, the smoke release amount is obviously increased, and the sensory smoking quality is obviously improved.
According to some aspects of the present invention there is provided a sheet for a smoking article comprising lyocell fibres in an amount of from 3 to 9% by weight, based on the weight of the finished sheet.
According to some embodiments of the invention, the lyocell fibre content is between 3% and 6% by weight, based on the weight of the finished sheet.
According to some embodiments of the invention, the lyocell fiber content is any range consisting of a lower limit selected from 3 wt%, 3.5 wt%, 4 wt%, 4.5 wt%, 5 wt%, 5.5 wt%, 6 wt%, 6.5 wt% to an upper limit selected from 7 wt%, 7.5 wt%, 8 wt%, 8.5 wt%, 9 wt%, inclusive. According to some embodiments of the invention, the lyocell fiber content further includes a range consisting of, or consisting of, any two lower values selected from the above, inclusive.
According to some embodiments of the invention, the sheet is made by a papermaking process.
According to some aspects of the present invention, there is provided a method of manufacturing a sheet for a tobacco product, characterized in that the sheet is produced by a paper making process, wherein in the paper making process, a raw material composition comprises, in parts by weight of components in the raw material composition:
1-18 parts of lyocell fiber.
According to some embodiments of the invention, in the papermaking process, the stock composition comprises, in parts by weight of the components in the stock composition:
40-80 parts, such as 45-75 parts, such as 50-70 parts, such as 55-65 parts of broken tobacco flake raw materials,
10-40 parts of tobacco stem raw material, such as 15-35 parts, such as 20-30 parts,
5 to 20 parts, for example 8 to 18 parts, for example 10 to 15 parts, for example 12 to 14 parts of additional fibers,
3 to 20 parts, for example 5 to 18 parts, for example 8 to 15 parts of a filler,
1 to 6 parts, such as 2 to 5 parts, such as 3 to 4 parts of a binder,
5-40 parts of smoke agent, such as 8-35 parts, such as 15-30 parts, such as 20-25 parts;
the external fiber consists of 1-18 parts of lyocell fiber and other plant fibers, preferably 3-15 parts of lyocell fiber, preferably 5-12 parts of lyocell fiber, preferably 7-10 parts of lyocell fiber; the balance being other plant fibers.
According to some embodiments of the invention, the lyocell fiber content is any range consisting of a lower limit selected from 1 part, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, and 8.5 parts to an upper limit selected from 9 parts, 9.5 parts, 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts, 15 parts, 15.5 parts, 16 parts, 16.5 parts, 17 parts, 17.5 parts, and 18 parts, inclusive, in parts by weight of the components in the raw material composition. According to some embodiments of the invention, the lyocell fiber content further includes a range consisting of, or consisting of, any two lower values selected from the above, inclusive.
According to some embodiments of the invention, wherein the smoking agent comprises glycerin and propylene glycol.
According to some embodiments of the invention, wherein the smoking agent consists of glycerin to propylene glycol in a mass ratio (w/w) of 80-90% to 10-20%.
According to some embodiments of the invention, wherein the smoking agent consists of glycerol to propylene glycol in a mass ratio (w/w) of 90% to 10%.
According to some embodiments of the invention, wherein the other plant fibers are selected from bamboo fibers, softwood fibers, flax fibers and mixtures thereof.
According to some embodiments of the invention, the shredded tobacco lamina material comprises one or more pieces of the type flue-cured tobacco, burley tobacco, aromatic tobacco, or the like, having a gauge size of less than 8 mm.
According to some embodiments of the invention, the shredded tobacco lamina material comprises predominantly flue-cured tobacco shreds, based on the weight of the shredded tobacco lamina material.
According to some embodiments of the invention, the tobacco stem feedstock comprises one or more tobacco stems of the flue-cured, burley, oriental, and the like type.
According to some embodiments of the invention, the tobacco stem material comprises substantially cured tobacco stem, based on the weight of the tobacco stem material.
In the present specification, the term "mainly comprises" means that the content of the relevant component is at least more than 50 wt%, at least more than 60 wt%, at least more than 70 wt%, at least more than 80 wt%, at least more than 90 wt%, at least more than 95 wt%.
According to some embodiments of the invention, the filler comprises ground calcium carbonate, light calcium carbonate or the like.
According to some embodiments of the invention, the binder comprises guar gum, carboxymethyl cellulose, starch, or the like.
According to some aspects of the present invention, there is provided a heat-not-burn tobacco product comprising a sheet for a tobacco product of the present invention. Preferably, the sheet is manufactured by a papermaking process.
According to some embodiments of the invention, the smoking article is a heated cigarette.
According to some aspects of the present invention there is provided the use of lyocell fibres for the manufacture of a sheet for a smoking article.
The sheet for tobacco products of the present invention is manufactured by a paper making process, which generally comprises the steps of: (1) extracting and processing broken tobacco flake raw materials into a leaf extract and a leaf extracting solution, and extracting and processing tobacco stem raw materials into a stem extract and a stem extracting solution; (2) concentrating the leaf extract into a leaf paste, and concentrating the stem extract into a stem paste; (3) mixing the leaf paste, the stem paste, the smoke agent, the adhesive and other components according to the formula requirement of the heating non-combustion sheet, and processing to form a coating liquid; (4) mixing the leaf extract and the stem extract according to a certain proportion, and processing to form tobacco slurry; processing various required additional fibers to form additional fiber slurry; (5) mixing the tobacco pulp and the additional fiber pulp according to a certain proportion, adding a proper amount of filler, refining to obtain papermaking pulp, and papermaking the papermaking pulp to obtain a functional substrate; (6) applying the coating liquid to the functional substrate, and drying it to obtain a sheet; and (7) shredding the slices to obtain cut tobacco.
More specifically, the papermaking process of the present invention for making the sheet is carried out as follows:
(1) extraction: carrying out three-stage countercurrent extraction on a broken tobacco flake raw material (tobacco leaf fragments with the size and specification size of 1.5-8mm, the percentage of the broken tobacco flake raw material is 100%) and hot water with the temperature of 60-80 ℃ in a material ratio of 1: 6-1: 10, and carrying out solid-liquid separation through a spiral squeezing machine to respectively obtain a leaf extract and a leaf extracting solution; extracting a tobacco stem raw material (the size of the tobacco stem is 10-30mm, the percentage is 100%) and hot water at 60-80 ℃ in a three-stage countercurrent mode according to a material ratio of 1: 4-1: 8, and performing solid-liquid separation by a spiral squeezing machine to obtain a stem extract and a stem extracting solution respectively;
(2) concentration: carrying out reduced pressure evaporation concentration on the leaf extracting solution obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 40-60 ℃, and concentrating to obtain leaf extract with the density of 1.150-1.300 g/ml; carrying out reduced pressure evaporation concentration on the stalk extract obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 55-85 ℃, and concentrating to obtain stalk paste with the density of 1.250-1.400 g/ml;
(3) preparing a coating liquid: mixing the leaf paste and stem paste obtained in the step (2) with a smoke agent, an adhesive and other components, adding a proper amount of 45 ℃ warm water according to the formula requirement of the non-combustion heating sheet, and fully stirring to form a coating liquid;
(4) pulping: mixing the leaf extract and the stem extract obtained in the step (1) in proportion uniformly, and mechanically pulping to obtain tobacco pulp with the wet weight of 2-6 g and the pulping degree of 30-40 DEG SR; respectively crushing and defibrating various additional fiber pulp boards to obtain additional fiber pulp with the wet weight of 5-10 g and the beating degree of 40-50 DEG SR;
(5) manufacturing and molding the functional substrate: uniformly mixing the tobacco pulp obtained in the step (4), the lyocell fibers and other plant fibers according to a ratio, adding a proper amount of filler, refining to form papermaking pulp, adjusting the net surfing concentration to be 0.75-1.0% (W/W) for papermaking to obtain a functional substrate containing the lyocell fibers, and quantitatively controlling the concentration to be 35-70 g/m2(oven dried) (oven dried: representing the weight weighed after 2 hours of drying at 100 ℃);
(6) coating and drying: uniformly coating the coating liquid obtained in the step (3) into the functional substrate obtained in the step (5) in a dip-coating mode, and carrying out hot air penetrating drying through a multi-section drying oven with the temperature of 60-130 ℃ and the length of 40-100 m, wherein the coating rate is controlled to be 40% -60%, and the quantitative amount is 90-120 g/m2(oven drying);
(7) preparing silk: shredding the dried slices obtained in the step (6) into threads with the width range of 0.8-1.0 mm;
(8) trial production of the cigarette cartridge: and (4) replacing the tobacco core section of the existing heating non-combustion cigarette in the market with the heating non-combustion papermaking thin slice filament obtained in the step (7) to obtain the test cigarette cartridge for smoking evaluation.
Preferably, the inventors of the present invention have experimentally found that the suction effect of the prepared heat non-combustible papermaking process sheet is more effective by performing the above steps under the following process conditions: 40-80 parts of shredded tobacco flake raw materials, 10-40 parts of tobacco stem raw materials, 5-20 parts of additional fibers, 3-20 parts of fillers, 1-6 parts of adhesives and 5-40 parts of smoke agents, when the shredded tobacco flake raw materials are prepared into a heating non-combustion papermaking method slice, the moisture is controlled at 6-10%, and then the shredded tobacco flake raw materials are prepared into a smoke bomb for suction evaluation (no spice is added).
Interpretation of terms:
the present specification, if the following terms are used, may have the following meanings.
The term "heat not burn tobacco product" refers to a type of tobacco product in which the cigarette remains heated but not lit during use.
Lyocell (Lyocell), also commonly known in the art as Lyocell fiber, is a high wet modulus regenerated cellulose fiber produced by wet spinning after dissolving lignocellulose in an aqueous solution of N-methyloxymorphone (NMMO).
The plant fiber is produced by processing bamboo, wood, flax, grass and other plant material into pulp board chemically or mechanically, and crushing and defibering to obtain product with dispersed single fiber.
Softwood fibers, softwood fibers. The coniferous tree refers to tree with needle-shaped, strip-shaped or scale-shaped leaves, such as spruce, fir, masson pine, larch, slash pine, loblolly pine, etc.
Advantageous effects
Compared with the prior art, the sheet for the tobacco products has the following beneficial effects or effects:
1) the smoke agent can be adsorbed more, and the surface is dry without liquid exudation;
2) the smoke releasing amount is higher when the heating agent is used for heating a non-combustible tobacco product;
3) the tobacco product can be heated without burning, and has the advantages of less irritation, clean aftertaste and better sensory smoking quality.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and are not intended to limit the scope of the present invention.
The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Test method
Item 1: content of smoke agent
The content of the smoke agent is detected according to the standard of YC/T243-2008 gas chromatography for measuring 1, 2-propylene glycol and glycerol of tobacco and tobacco products.
Item 2: evaluation of cigarette sensory quality
The method for evaluating the cigarette sensory quality in Fujian cigarettes refers to GB5606.4-2005 cigarette part 4: sensory technical requirements, wherein the sensory quality evaluation standard of cigarettes has six indexes of' gloss (score of 5); fragrance (full score 32 points); harmonizing (full score 6 points); miscellaneous qi (full 12 minutes); irritancy (score 20); aftertaste (25 points full of the product) ", and total score of 100.
As the sensory quality evaluation of the heating non-combustion cigarette, no standard method exists in the industry at present. The cigarette in Fujian refers to GB5606.4-2005, and aims at the sensory quality evaluation of the cigarette which is not burned by heating, the smoke temperature (full score of 20) is mainly selected from the following indexes; the amount of smoke (full 20 min); the number of suction ports (full 20 minutes); the style of aroma (16 points full); satisfaction (8 points of satisfaction); comfort (full 8 points); odor (score 8 full) ", and total score 100.
Regarding the lyocell and softwood fibers used in the examples:
example 1
The sheet for tobacco products of the present invention is prepared as follows, the raw material composition comprising, in parts by weight of the components in the raw material composition:
70 parts of broken tobacco flake raw materials,
25 parts of tobacco stalk raw materials,
10 parts of additional fiber (wherein, 5 parts of lyocell fiber and the balance of other plant fiber)
10 parts of a filler, namely adding 10 parts of a filler,
1.5 parts of an adhesive agent,
20 parts of a smoke agent.
This example produced a novel sheet for tobacco products having a lyocell content of 3.5% by weight, based on the weight of the finished sheet.
(1) Extraction: extracting 70kg of shredded tobacco leaf raw materials and 60-80 ℃ hot water in a material ratio of 1: 6-1: 10 in a three-stage countercurrent mode, and performing solid-liquid separation by a spiral squeezing machine to respectively obtain a leaf extract and a leaf extracting solution; extracting 25kg of tobacco stem raw materials and 60-80 ℃ hot water in a material ratio of 1: 4-1: 8 in a three-stage countercurrent mode, and performing solid-liquid separation by using a spiral squeezing machine to obtain a stem extract and a stem extracting solution respectively;
(2) concentration: carrying out reduced pressure evaporation concentration on the leaf extracting solution obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 40-60 ℃, and concentrating to obtain leaf extract with the density of 1.150-1.300 g/ml; carrying out reduced pressure evaporation concentration on the stalk extract obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 55-85 ℃, and concentrating to obtain stalk paste with the density of 1.250-1.400 g/ml;
(3) preparing a coating liquid: mixing the leaf extract and stem extract obtained in the step (2) with 20kg of smoke agent (90% of glycerol: 10% of propylene glycol), 1.5kg of guar gum and other components in a proper proportion, adding a proper amount of 45 ℃ warm water according to the formula requirement of the heating non-combustion slice, and fully stirring to form a coating liquid;
(4) pulping: mixing the leaf extract and the stem extract obtained in the step (1) in proportion uniformly, and mechanically pulping to obtain tobacco pulp with the wet weight of 2-6 g and the pulping degree of 30-40 DEG SR; respectively crushing and defibering various additional fiber pulp plates (5kg of lyocell fibers and 5kg of softwood fibers) to obtain additional fiber pulp with the wet weight of 5-10 g and the beating degree of 40-50 DEG SR;
(5) manufacturing and molding the functional substrate: the tobacco pulp obtained in step (4) and the additional fiber pulp are mixed uniformly, and 10kg of filler (for example, CaCO) is added3) Refining the raw materials into papermaking slurry, adjusting the concentration of the upper wire to 0.75-1.0% (W/W) for papermaking to obtain a functional substrate containing lyocell fibers, and quantitatively controlling the concentration to 35-70 g/m2(oven drying);
(6) coating and drying: uniformly coating the coating liquid obtained in the step (3) into the functional substrate obtained in the step (5) in a dip-coating mode, and carrying out hot air penetrating drying through a multi-section drying oven with the temperature of 60-130 ℃ and the length of 40-100 m, wherein the coating rate is controlled to be 40% -60%, and the quantitative amount is 90-120 g/m2(oven drying); about 99.5kg of sheet products prepared by the heating non-combustion papermaking method can be prepared;
(7) preparing silk: shredding the dried slices obtained in the step (6) into threads with the width range of 0.8-1.0 mm;
(8) trial production of the cigarette cartridge: and (4) replacing the tobacco core section of the existing heating non-combustion cigarette in the market with the heating non-combustion papermaking thin slice filament obtained in the step (7) to obtain the test cigarette cartridge for smoking evaluation.
Tables 1 and 2 show the effect comparison between the sheets of the present example and the comparative sheets.
TABLE 1
# notation, a sample of a heat not burn paper-making sheet was made according to the test sample formulation, using equal weight of other plant fibers (softwood fibers) instead of lyocell fibers in the stock.
TABLE 2
And marking, referring to a sensory quality evaluation method of cigarettes in Fujian, wherein the full score of the smoke amount column is 20 points, and the full score of the sensory quality column is 100 points, and the average value of all 7 persons is scored by a sensory evaluation group.
According to the test samples implemented in the embodiment, the adsorption performance of the smoke agent of the sheet product by the heating non-combustion paper making method is improved by 16.18%, the smoke amount release amount of the prepared heating non-combustion cigarette is obviously increased, and the sensory quality is obviously improved.
Example 2
The sheet for tobacco products of the present invention is prepared as follows, the raw material composition comprising, in parts by weight of the components in the raw material composition:
65 parts of broken tobacco flake raw materials,
22 parts of tobacco stem raw materials,
10 parts of additional fiber (wherein 7 parts of lyocell fiber and the balance of other plant fiber)
10 parts of a filler, namely adding 10 parts of a filler,
1 part of adhesive, namely 1 part of adhesive,
25 parts of a smoke agent.
This example produced a novel sheet for tobacco products having a lyocell content of 6.0% by weight, based on the weight of the finished sheet.
(1) Extraction: extracting 65kg of shredded tobacco leaf raw materials and 60-80 ℃ hot water in a material ratio of 1: 6-1: 10 in a three-stage countercurrent mode, and performing solid-liquid separation by a spiral squeezing machine to obtain a leaf extract and a leaf extracting solution respectively; extracting 22kg of tobacco stem raw materials and 60-80 ℃ hot water in a material ratio of 1: 4-1: 8 in a three-stage countercurrent mode, and performing solid-liquid separation by using a spiral squeezing machine to obtain a stem extract and a stem extracting solution respectively;
(2) concentration: carrying out reduced pressure evaporation concentration on the leaf extracting solution obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 40-60 ℃, and concentrating to obtain leaf extract with the density of 1.150-1.300 g/ml; carrying out reduced pressure evaporation concentration on the stalk extract obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 55-85 ℃, and concentrating to obtain stalk paste with the density of 1.250-1.400 g/ml;
(3) preparing a coating liquid: mixing the leaf extract and stem extract obtained in the step (2) with 25kg of smoke agent (90% of glycerol: 10% of propylene glycol), 1kg of guar gum and other components in a proper proportion, adding a proper amount of 45 ℃ warm water according to the formula requirement of the heating non-combustion slice, and fully stirring to form a coating liquid;
(4) pulping: mixing the leaf extract and the stem extract obtained in the step (1) in proportion uniformly, and mechanically pulping to obtain tobacco pulp with the wet weight of 2-6 g and the pulping degree of 30-40 DEG SR; respectively crushing and defibering various additional fiber pulp plates (7kg of lyocell fibers and 3kg of softwood fibers) to obtain additional fiber pulp with the wet weight of 5-10 g and the beating degree of 40-50 DEG SR;
(5) manufacturing and molding the functional substrate: the tobacco pulp obtained in step (4) and the additional fiber pulp are mixed uniformly, and 10kg of filler (for example, CaCO) is added3) Refining the raw materials into papermaking slurry, adjusting the concentration of the upper wire to 0.75-1.0% (W/W) for papermaking to obtain a functional substrate containing lyocell fibers, and quantitatively controlling the concentration to 35-70 g/m2(oven drying);
(6) coating and drying: immersing the coating liquid obtained in the step (3)Uniformly coating the functional substrate obtained in the step (5) in a coating mode, passing through a multi-section drying oven with the temperature of 60-130 ℃ and the length of 40-100 meters, and carrying out hot air penetrating drying, wherein the coating rate is controlled to be 40% -60%, and the quantitative amount is 90-120 g/m2(oven drying); about 93kg of sheet products prepared by the heating non-combustion papermaking method can be prepared;
(7) preparing silk: shredding the dried slices obtained in the step (6) into threads with the width range of 0.8-1.0 mm;
(8) trial production of the cigarette cartridge: and (4) replacing the tobacco core section of the existing heating non-combustion cigarette in the market with the heating non-combustion papermaking thin slice filament obtained in the step (7) to obtain the test cigarette cartridge for smoking evaluation.
Tables 3 and 4 show the effect comparison between the sheets of the present example and the comparative sheets.
TABLE 3
# notation, a sample of a heat not burn paper-making sheet was made according to the test sample formulation, using equal weight of other plant fibers (softwood fibers) instead of lyocell fibers in the stock.
TABLE 4
And marking, referring to a sensory quality evaluation method of cigarettes in Fujian, wherein the full score of the smoke amount column is 20 points, and the full score of the sensory quality column is 100 points, and the average value of all 7 persons is scored by a sensory evaluation group.
According to the test samples implemented in the embodiment, the adsorption performance of the smoke agent of the sheet product by the heating non-combustion paper making method is improved by 33.37%, the smoke amount release amount of the prepared heating non-combustion cigarette is obviously increased, and the sensory quality is obviously improved.
It should be explained that:
as known to those skilled in the art, the loss of the paper-making process during the production of sheets is large, and the product weight/total input raw material weight is less than 70%. The thin sheet product without addition of the lyocell fiber has the characteristics that after the smoke agent in the raw material is applied, the smoke agent content of the obtained product is also sharply reduced due to volatilization and loss of the production process. However, after the smoke agent is added into the raw materials of the sheet product added with the lyocell fibers, the effective adsorption of the smoke agent is obviously improved due to the addition of the lyocell fibers, the volatilization and loss of the smoke agent in the production are obviously relieved, and the total quality of the obtained product is reduced, so that the phenomenon that the content of the smoke agent in the product is higher than the initial addition value occurs.
Example 3
The sheet for tobacco products of the present invention is prepared as follows, the raw material composition comprising, in parts by weight of the components in the raw material composition:
65 parts of broken tobacco flake raw materials,
22 parts of tobacco stem raw materials,
10 parts of additional fiber (wherein, 0.5 part of lyocell fiber and the balance of other plant fiber)
10 parts of a filler, namely adding 10 parts of a filler,
1.5 parts of an adhesive agent,
25 parts of a smoke agent.
This example produced a novel sheet for tobacco products having a lyocell content of 0.3% by weight, based on the weight of the finished sheet.
(1) Extraction: extracting 65kg of shredded tobacco leaf raw materials and 60-80 ℃ hot water in a material ratio of 1: 6-1: 10 in a three-stage countercurrent mode, and performing solid-liquid separation by a spiral squeezing machine to obtain a leaf extract and a leaf extracting solution respectively; extracting 22kg of tobacco stem raw materials and 60-80 ℃ hot water in a material ratio of 1: 4-1: 8 in a three-stage countercurrent mode, and performing solid-liquid separation by using a spiral squeezing machine to obtain a stem extract and a stem extracting solution respectively;
(2) concentration: carrying out reduced pressure evaporation concentration on the leaf extracting solution obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 40-60 ℃, and concentrating to obtain leaf extract with the density of 1.150-1.300 g/ml; carrying out reduced pressure evaporation concentration on the stalk extract obtained in the step (1), adjusting the vacuum degree, ensuring the evaporation temperature to be 55-85 ℃, and concentrating to obtain stalk paste with the density of 1.250-1.400 g/ml;
(3) preparing a coating liquid: mixing the leaf extract and stem extract obtained in the step (2) with 25kg of smoke agent (90% of glycerol: 10% of propylene glycol), 1.5kg of guar gum and other components in a proper proportion, adding a proper amount of 45 ℃ warm water according to the formula requirement of the heating non-combustion slice, and fully stirring to form a coating liquid;
(4) pulping: mixing the leaf extract and the stem extract obtained in the step (1) in proportion uniformly, and mechanically pulping to obtain tobacco pulp with the wet weight of 2-6 g and the pulping degree of 30-40 DEG SR; respectively crushing and defibrating various additional fiber pulp boards (0.5kg of Lyocell fibers and 9.5kg of softwood fibers) to obtain additional fiber pulp with the wet weight of 5-10 g and the beating degree of 40-50 DEG SR;
(5) manufacturing and molding the functional substrate: the tobacco pulp obtained in the step (4) and the additional fiber pulp are evenly mixed, and 10kg of filler (such as CaCO)3) Refining the raw materials into papermaking slurry, adjusting the concentration of the upper wire to 0.75-1.0% (W/W) for papermaking to obtain a functional substrate containing lyocell fibers, and quantitatively controlling the concentration to 35-70 g/m2(oven drying);
(6) coating and drying: uniformly coating the coating liquid obtained in the step (3) into the functional substrate obtained in the step (5) in a dip-coating mode, and carrying out hot air penetrating drying through a multi-section drying oven with the temperature of 60-130 ℃ and the length of 40-100 m, wherein the coating rate is controlled to be 40% -60%, and the quantitative amount is 90-120 g/m2(oven drying); about 90kg of sheet products prepared by the heating non-combustion papermaking method can be prepared;
(7) preparing silk: shredding the dried slices obtained in the step (6) into threads with the width range of 0.8-1.0 mm;
(8) trial production of the cigarette cartridge: and (4) replacing the tobacco core section of the existing heating non-combustion cigarette in the market with the heating non-combustion papermaking thin slice filament obtained in the step (7) to obtain the test cigarette cartridge for smoking evaluation.
Tables 5 and 6 show the effect comparison between the sheets of the present example and the comparative sheets.
TABLE 5
# notation, a sample of a heat not burn paper-making sheet was made according to the test sample formulation, using equal weight of other plant fibers (softwood fibers) instead of lyocell fibers in the stock.
TABLE 6
And marking, referring to a sensory quality evaluation method of cigarettes in Fujian, wherein the full score of the smoke amount column is 20 points, and the full score of the sensory quality column is 100 points, and the average value of all 7 persons is scored by a sensory evaluation group.
By combining the experimental detection and sensory smoking evaluation results, the test sample implemented according to the embodiment has the advantages that the smoke adsorbent of the sheet product prepared by the heating non-combustion paper making method is improved by about 0.73%, the smoke amount release amount of the prepared heating non-combustion cigarette is slightly increased, and the sensory quality is slightly improved.
Comparing the results of examples 1 and 2, it can be seen that the appropriate addition ratio of lyocell fibers is more helpful to improve the high smoke adsorbent adsorption performance of the sheet produced by the heat non-combustion paper making method, thereby increasing the smoke release amount and improving the sensory smoking quality.
According to the technical scheme and the effect of the invention, in the heating non-combustion papermaking-method sheet, along with the increase of the addition proportion of the lyocell fibers in the special functional fiber formula, the content of the smoke agent in the product is obviously increased. The prepared product has the advantages of sufficient overall sensory smoking mist quantity, small irritation and clean aftertaste, and the sensory smoking quality is obviously improved.
While specific embodiments of the invention have been described in detail, those skilled in the art will understand that: various modifications and changes in detail can be made in light of the overall teachings of the disclosure, and such changes are intended to be within the scope of the present invention. The full scope of the invention is given by the appended claims and any equivalents thereof.
Claims (10)
1. Sheet for tobacco products, characterized in that it contains lyocell fibres in an amount of 3-9 wt.%, preferably 3-6 wt.%, based on the weight of the finished sheet.
2. The sheet according to claim 1, characterized in that the sheet is prepared by a papermaking process.
3. A method of making a sheet according to any one of the preceding claims, characterised in that the sheet is produced by a paper making process in which a stock composition comprises, in parts by weight of the components in the stock composition:
1-18 parts of lyocell fiber.
4. The method for producing flakes according to claim 3, wherein the raw material composition comprises, in parts by weight of each component in the raw material composition:
40-80 parts of broken tobacco flake raw materials,
10-40 parts of tobacco stem raw materials,
5 to 20 parts of additional fiber are added,
3-20 parts of a filler,
1-6 parts of a binder,
5-40 parts of a smoke agent;
the external fiber consists of 1-18 parts of lyocell fiber and other plant fibers, preferably 3-15 parts of lyocell fiber, preferably 5-12 parts of lyocell fiber, and preferably 7-10 parts of lyocell fiber.
5. A method of manufacturing flakes according to any of claims 3 to 4, characterized in that said smoking agent comprises glycerol and propylene glycol.
6. A method of making a sheet according to claim 5 wherein the smoke agent consists of glycerin to propylene glycol in a mass ratio of 80-90% to 10-20%, preferably 90% to 10%.
7. A method of making flakes according to any one of claims 4 to 6, wherein said other plant fibers are selected from the group consisting of bamboo fibers, softwood fibers, flax fibers, and mixtures thereof.
8. A heat-not-burn tobacco product, characterized in that it comprises a sheet for a tobacco product according to any one of claims 1 to 2 or a sheet manufactured according to the method of any one of claims 3 to 7.
9. The heat non-combustible smoking article according to claim 8, wherein said smoking article is a heat cigarette.
10. Use of lyocell fibres for the manufacture of a sheet for a tobacco product.
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| CN202010009617.5A CN111358036B (en) | 2020-01-06 | 2020-01-06 | Sheet for tobacco products containing lyocell fiber and heat-non-combustible tobacco products |
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| CN202010009617.5A CN111358036B (en) | 2020-01-06 | 2020-01-06 | Sheet for tobacco products containing lyocell fiber and heat-non-combustible tobacco products |
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| CN111996832A (en) * | 2020-09-17 | 2020-11-27 | 中国海诚工程科技股份有限公司 | Tobacco flake base paper capable of being heated and not combusted and preparation method thereof |
| CN112369649A (en) * | 2020-11-27 | 2021-02-19 | 中国科学院重庆绿色智能技术研究院 | Tobacco sheet based on micro-nano fiber structure and preparation method thereof |
| CN114009822A (en) * | 2021-12-15 | 2022-02-08 | 云南中烟新材料科技有限公司 | Preparation process for heating cigarette material by composite method |
| CN114875720A (en) * | 2022-06-15 | 2022-08-09 | 上海烟草集团有限责任公司 | Tobacco type lining base paper and preparation method and application thereof |
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| CN110150722A (en) * | 2019-06-20 | 2019-08-23 | 中烟施伟策（云南）再造烟叶有限公司 | Heating with high heat-transfer performance is not burnt reconstituted tobacco and preparation method thereof |
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| CN106993820A (en) * | 2016-01-26 | 2017-08-01 | 上海烟草集团有限责任公司 | A kind of high bulk papermaking-method reconstituted tobaccos fiber composition and preparation method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111996832A (en) * | 2020-09-17 | 2020-11-27 | 中国海诚工程科技股份有限公司 | Tobacco flake base paper capable of being heated and not combusted and preparation method thereof |
| CN112369649A (en) * | 2020-11-27 | 2021-02-19 | 中国科学院重庆绿色智能技术研究院 | Tobacco sheet based on micro-nano fiber structure and preparation method thereof |
| CN114009822A (en) * | 2021-12-15 | 2022-02-08 | 云南中烟新材料科技有限公司 | Preparation process for heating cigarette material by composite method |
| CN114875720A (en) * | 2022-06-15 | 2022-08-09 | 上海烟草集团有限责任公司 | Tobacco type lining base paper and preparation method and application thereof |
| CN114875720B (en) * | 2022-06-15 | 2023-09-19 | 上海烟草集团有限责任公司 | Tobacco type lining base paper and preparation method and application thereof |
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| CN111358036B (en) | 2022-07-19 |
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