CN116804316B - Heat-not-burn cigarette paper and preparation method thereof, heat-not-burn cigarette and heat-not-burn system - Google Patents
Heat-not-burn cigarette paper and preparation method thereof, heat-not-burn cigarette and heat-not-burn systemInfo
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- CN116804316B CN116804316B CN202210272423.3A CN202210272423A CN116804316B CN 116804316 B CN116804316 B CN 116804316B CN 202210272423 A CN202210272423 A CN 202210272423A CN 116804316 B CN116804316 B CN 116804316B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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Abstract
The application provides heating non-combustible cigarette paper, a preparation method thereof, a heating non-combustible cigarette and a heating non-combustible system. The heating non-combustible cigarette paper comprises 30-65% of fiber, 5-20% of adhesive and 30-60% of flame retardant. The preparation method of the heating non-combustible cigarette paper comprises the steps of mixing raw materials, shearing to obtain slurry, casting and drying to obtain the heating non-combustible cigarette paper, or mixing the adhesive, the flame retardant and water to obtain mixed liquid, spraying the mixed liquid on a fiber substrate formed by fibers, and drying to obtain the heating non-combustible cigarette paper. The heating non-combustible cigarette comprises the heating non-combustible cigarette paper and a cigarette core material accommodated in an accommodating space formed by the heating non-combustible cigarette paper. And the heating non-combustion system comprises the heating non-combustion cigarette. The heating non-combustible cigarette paper provided by the application has good flame retardant property, heat conducting property and air permeability.
Description
Technical Field
The application relates to the field of heating non-combustible tobacco, in particular to heating non-combustible cigarette paper and a preparation method thereof, a heating non-combustible cigarette and a heating non-combustible system.
Background
In recent years, along with the development of economy and the improvement of living standard, people pay more attention to health, the research and development of novel tobacco products (mainly including heating non-burning cigarettes, electronic cigarettes, buccal cigarettes and the like) are promoted, and along with the acceleration of global tobacco control movement for several years, the tobacco industry enters a new period for seeking innovation and breakthrough, and the research and development process of novel tobacco products is accelerated. The heating non-burning cigarette (hereinafter abbreviated as HNB cigarette) is an important component of novel tobacco products, and is characterized in that firstly, the heating at low temperature is performed without burning, secondly, nicotine is provided, the physiological needs of smokers can be met, thirdly, the cigarette has no harmful substances such as tar and the like, and the harmful substances are reduced by more than 90 percent compared with the existing cigarette components. The HNB cigarettes need special heating equipment for heating, and the current electric heating structures in the market mainly have two types, namely a central heating structure and a circumferential heating structure.
The central heating element adopts a heating sheet (needle) which is arranged at the bottom center of a circle of a cigarette holding device of a smoking set, when a non-burning cigarette is inserted into a holder during heating, the heating sheet (needle) is correspondingly inserted into the cigarette, the heating sheet (needle) is in direct contact with special tobacco shreds, the heating sheet (needle) has the advantages of quick heating and close mouthfeel to a real cigarette, but has obvious defects that (1) the heating is uneven, the temperature of the part of the tobacco center contacted with the heating sheet (needle) is high due to the direct contact with the heating sheet (needle), the temperature of the periphery is low, and when the temperature is too high, the mouthfeel has burnt flavor, and the user experience is affected. (2) The tobacco in the central part is easy to carbonize due to the fact that the temperature of the heating sheet (needle) is high in direct contact, tar in the tobacco is heated and solidified, the carbonized tobacco can be adhered to the heating sheet (needle), and if the tobacco is not cleaned, the condition of flavor tainting can occur in the next use, and the sense is affected. Therefore, the smoking set with the central heating structure needs to be cleaned after each use, which is troublesome.
The heating element for circumferential heating generally comprises three parts of air guiding, heat insulation and heating, and the cigarette is heated by inserting the heating non-burning cigarette into the heating element, so that the cigarette is heated in a structure with the periphery heated inwards. Because the circumferential heating adopts a form of heating the periphery inwards, the heating elements are uniformly distributed on the inner wall of the smoking set, and the problem of nonuniform heating of the central heating smoking set can be effectively solved. Meanwhile, the heating element for circumferential heating is not contacted with the tobacco core of the cigarette, so that the problem of tobacco carbonization caused by central heating of the smoking set can be effectively avoided. However, the heating element and the cigarette cannot be tightly attached to each other as a result of circumferential heating, and a layer of cigarette paper is arranged between the tobacco and the heating pipe, so that the problems of slow temperature rise and inferior heating effect compared with central heating exist in circumferential heating. In order to solve the problem of slow heating of the circumferential heating smoking set, the effective components in the cigarettes are released better, the circumferential heating structure generally needs a higher heating temperature (300-350 ℃) and the ignition point of the traditional cigarette paper is generally about 200 ℃, and the traditional cigarette paper is easy to burn in the heating process to generate harmful smoke.
The technology of the circumferential heating cigarette paper is mostly a wet papermaking method technology, the air permeability of the cigarette paper prepared by the method is generally low, and after the cigarette is made, the smoke inside the cigarette is difficult to release. Meanwhile, in the technology disclosed in the prior art, surface sizing or compounding with other materials is often adopted to enable the cigarette paper to have the required flame retardant and heat conduction capability, the manufacturing process is complicated, for example, the cigarette paper prepared in the patent CN105040530A needs to be compounded with a metal foil, the cigarette paper prepared in the patent CN109680540A needs to be subjected to a surface sizing process after being manufactured into paper, and the cigarette paper prepared in the patent CN104195887A needs to be subjected to processing steps of applying flame retardant and the like on the surface after being manufactured into paper.
Therefore, in order to solve the problems of low air permeability, complicated manufacturing process and the like of the cigarette paper prepared by the prior art, the invention needs to invent a novel cigarette paper which is simple in manufacturing process, has high air permeability and has better flame retardance and heat conduction capability.
Disclosure of Invention
The application aims to provide heating non-combustible cigarette paper, a preparation method thereof, a heating non-combustible cigarette and a heating non-combustible system so as to solve the problems.
In order to achieve the above purpose, the application adopts the following technical scheme:
A heated non-combustible cigarette paper, comprising the following raw materials in percentage by mass:
30-65% of fiber, 5-20% of adhesive and 30-60% of flame retardant;
The flame retardant includes a water-soluble inorganic salt.
Preferably, the source of fibers comprises one or more of fluff pulp, needle wood, hardwood.
Preferably, the adhesive comprises one or more of sodium carboxymethyl cellulose, chitosan, guar gum and starch gum.
Preferably, the inorganic salt comprises one or more of sodium chloride, calcium chloride, disodium hydrogen phosphate, and potassium carbonate.
Preferably, the ration of the heating non-combustible cigarette paper is 40-100g/m 2, the bulk is 1.00-3.50cm 3/g, the tensile strength is 0.3-2.0kN/m, and the air permeability is 200-400mL/min.
The application also provides a preparation method of the heating non-combustible cigarette paper, which comprises the following steps:
mixing the raw materials, shearing to obtain slurry, and then salivating and drying to obtain the heating non-burning cigarette paper;
the application also provides a preparation method of the heating non-combustible cigarette paper, which comprises the following steps:
and mixing the adhesive, the flame retardant and water to obtain a mixed solution, spraying the mixed solution on a fibrous substrate formed by the fibers, and drying to obtain the heating non-combustible cigarette paper.
The application also provides a heating non-combustible cigarette, which comprises the heating non-combustible cigarette paper and a cigarette core material accommodated in an accommodating space formed by the heating non-combustible cigarette paper.
Preferably, the core material comprises one or more of nicotine, flavourant and a smoking agent;
preferably, the core material comprises one or more of an ordered arrangement of filamentary material, an unordered arrangement of filamentary material and particulate material.
The application also provides a heating non-combustion system which comprises the heating non-combustion cigarette.
Compared with the prior art, the application has the beneficial effects that:
According to the thermal non-combustible cigarette paper, the inorganic salt which can be dissolved in water is selected as the flame retardant through the matching of the fiber, the adhesive and the flame retardant, so that the flame retardant can be more uniformly dispersed in the cigarette paper, the overall flame retardant property of the cigarette paper is improved, the thermal non-combustible cigarette paper is good in ventilation and heat conducting properties, tobacco shreds in the cigarette are heated faster and more uniformly, and smoke is released better.
The preparation method of the heating non-combustible cigarette paper provided by the application can be obtained by one-step molding, does not need the subsequent procedures of surface sizing or compounding with other materials, and has simple production process.
The heating non-burning cigarette and the heating non-burning system provided by the application have the advantages that the tobacco shred is heated faster, heated more uniformly and the smoking experience is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of the present application.
FIG. 1 is a photograph of a heated non-combustible cigarette paper obtained in example 1;
Fig. 2 is a photograph of the cigarette paper of examples 1-6 and comparative example 1 subjected to a flame retardant test.
Detailed Description
The term as used herein:
"by. Preparation method synonymous with" comprising ". The terms "comprising," "including," "having," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, step, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, step, method, article, or apparatus.
The term "consisting of" excludes any unspecified element, step or component. If used in a claim, such phrase will cause the claim to be closed, such that it does not include materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of" appears in a clause of the claim body rather than immediately following the subject, it is limited to only the elements described in that clause, and other elements are not excluded from the claim as a whole.
When an equivalent, concentration, or other value or parameter is expressed as a range, preferred range, or a range bounded by a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges of "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a numerical range is described herein, unless otherwise indicated, the range is intended to include its endpoints and all integers and fractions within the range.
In these examples, the parts and percentages are by mass unless otherwise indicated.
"Parts by mass" means a basic unit of measurement showing the mass ratio of a plurality of components, and 1 part may be any unit mass, for example, 1g, 2.689g, or the like. If we say that the mass part of the A component is a part and the mass part of the B component is B part, the ratio a: B of the mass of the A component to the mass of the B component is expressed. Or the mass of the A component is aK, the mass of the B component is bK (K is any number and represents a multiple factor). It is not misunderstood that the sum of the parts by mass of all the components is not limited to 100 parts, unlike the parts by mass.
"And/or" is used to indicate that one or both of the illustrated cases may occur, e.g., a and/or B include (a and B) and (a or B).
A heated non-combustible cigarette paper, comprising the following raw materials in percentage by mass:
30-65% of fiber, 5-20% of adhesive and 30-60% of flame retardant;
The flame retardant includes a water-soluble inorganic salt.
Optionally, in the raw materials of the heating non-combustion cigarette paper, the amount of the fiber can be any value between 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65% or 30% -65%, the amount of the adhesive can be any value between 5%, 10%, 15%, 20% or 5% -20%, and the amount of the flame retardant can be any value between 30%, 35%, 40%, 45%, 50%, 55%, 60% or 30% -60% by mass percentage.
In an alternative embodiment, the source of fibers comprises one or more of fluff pulp, needle wood, hardwood.
In an alternative embodiment, the adhesive comprises one or more of sodium carboxymethyl cellulose, chitosan, guar gum, and starch gum.
In an alternative embodiment, the inorganic salt comprises one or more of sodium chloride, calcium chloride, disodium hydrogen phosphate, and potassium carbonate.
In an alternative embodiment, the heated non-combustible cigarette paper has a basis weight of 40-100g/m 2, a bulk of 1.00-3.50cm 3/g, a tensile strength of 0.3-2.0kN/m, and a permeability of 200-400mL/min.
Alternatively, the heated non-combustible cigarette paper may be quantified as 40g/m2、50g/m2、60g/m2、70g/m2、80g/m2、90g/m2、100g/m2 or any value between 40 and 100g/m 2, the bulk may be any value between 1cm 3/g、1.5cm3/g、2cm3/g、2.5cm3/g、3cm3/g、3.5cm3/g or 1.00 and 3.50cm 3/g, the tensile strength may be any value between 0.3kN/m, 0.5kN/m, 1.0kN/m, 1.5kN/m, 2.0kN/m or 0.3 and 2.0kN/m, and the air permeability may be any value between 200mL/min, 250mL/min, 300mL/min, 350mL/min, 400mL/min or 200 and 400 mL/min.
The application also provides a preparation method of the heating non-combustible cigarette paper, which comprises the following steps:
mixing the raw materials, shearing to obtain slurry, and then salivating and drying to obtain the heating non-burning cigarette paper;
the application also provides a preparation method of the heating non-combustible cigarette paper, which comprises the following steps:
and mixing the adhesive, the flame retardant and water to obtain a mixed solution, spraying the mixed solution on a fibrous substrate formed by the fibers, and drying to obtain the heating non-combustible cigarette paper.
The application also provides a heating non-combustible cigarette, which comprises the heating non-combustible cigarette paper and a cigarette core material accommodated in an accommodating space formed by the heating non-combustible cigarette paper.
In an alternative embodiment, the core material comprises one or more of nicotine, flavoring and a smoke agent;
in an alternative embodiment, the core material comprises one or more of an ordered arrangement of filamentary material, an unordered arrangement of filamentary material, and particulate material.
The application also provides a heating non-combustion system which comprises the heating non-combustion cigarette.
Embodiments of the present application will be described in detail below with reference to specific examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present application and should not be construed as limiting the scope of the present application. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1
The embodiment provides novel heating non-combustible cigarette paper, which comprises the following components in parts by weight of 35% of fiber, 15% of adhesive and 50% of flame retardant.
The fiber of the cigarette paper consists of needle wood and broad-leaved wood, and the weight ratio of the needle wood to the broad-leaved wood is 4:1.
The fire retardant of the cigarette paper is sodium chloride.
The adhesive of the cigarette paper is sodium carboxymethyl cellulose.
The specific implementation process is as follows:
1) Taking 28kg of softwood and 7kg of hardwood, and carrying out pulp breaking, pulp grinding and other treatments to obtain wood pulp;
2) Uniformly mixing wood pulp, 15kg of sodium carboxymethyl cellulose and 50kg of sodium chloride in a mixing tank, and shearing to obtain homogenized slurry;
3) The homogenized slurry was cast into a uniform, continuous web on a steel strip, and subjected to drying, peeling, etc. to obtain the cigarette paper of example 1, the appearance and photograph of which are shown in fig. 1.
The cigarette paper of example 1 above was quantified at 60-100g/m 2, bulk 1.22-1.28cm 3/g, and tensile strength 1.7kN/m.
Example 2
The embodiment provides novel heating non-combustible cigarette paper, which comprises 45.5% of fiber, 19.5% of adhesive and 35% of flame retardant.
The fiber of the cigarette paper consists of needle wood and broad-leaved wood, and the weight ratio of the needle wood to the broad-leaved wood is 4:1.
The fire retardant of the cigarette paper is sodium chloride.
The adhesive of the cigarette paper is sodium carboxymethyl cellulose.
The specific implementation process is as follows:
1) Taking 36.4kg of softwood and 9.1kg of hardwood, and carrying out pulp crushing, pulp grinding and the like to obtain wood pulp;
2) Uniformly mixing wood pulp, 19.5kg of sodium carboxymethyl cellulose and 35kg of sodium chloride in a mixing tank, and shearing to obtain homogenized slurry;
3) The homogenized slurry was cast on a steel strip to form a uniform, continuous web, which was dried and peeled to give the cigarette paper of example 2.
The cigarette paper of example 2 above was quantified at 80-110g/m 2, bulk 1.15-1.18cm 3/g, and tensile strength 1.8kN/m.
Example 3
The embodiment provides novel heating non-combustible cigarette paper, which comprises the following components in percentage by weight of 37% of fiber, 13% of adhesive and 50% of flame retardant.
The fiber of the cigarette paper consists of needle wood and broad-leaved wood, and the weight ratio of the needle wood to the broad-leaved wood is 4:1.
The fire retardant of the cigarette paper is sodium chloride.
The adhesive of the cigarette paper is guar gum.
The specific implementation process is as follows:
1) Taking 29.6kg of softwood and 7.4kg of hardwood, and carrying out pulp crushing, pulp grinding and the like to obtain wood pulp;
2) Uniformly mixing and shearing wood pulp, 13kg of guar gum and 50kg of sodium chloride in a mixing tank to obtain homogenized slurry;
3) The homogenized slurry was cast on a steel strip to form a uniform, continuous web, which was dried and peeled to give the cigarette paper of example 3.
The cigarette paper of example 3 above was quantified at 75-115g/m 2, bulk 1.09-1.31cm 3/g, and tensile strength 1.2kN/m.
Example 4
The embodiment provides novel heating non-combustible cigarette paper, which comprises 36% of fibers, 10% of adhesives and 54% of flame retardants in parts by weight.
The fibers of the cigarette paper consist of fluff pulp.
The fire retardant of the cigarette paper is disodium hydrogen phosphate.
The adhesive of the cigarette paper is guar gum.
The specific implementation process is as follows:
1) After defibrating 36kg of fluff pulp, uniformly spreading on a forming net;
2) Preparing 10kg of guar gum, 60kg of disodium hydrogen phosphate and water into slurry in a mixing tank;
3) The slurry was uniformly sprayed on the fibrous substrate by spraying, and the cigarette paper of example 4 was obtained through a drying step.
The cigarette paper of example 4 above was quantified at 50-70g/m 2, bulk 2.77-2.85cm 3/g, and tensile strength 0.7kN/m.
Example 5
The embodiment provides novel heating non-combustible cigarette paper, which comprises 36% of fibers, 10% of adhesives and 54% of flame retardants in parts by weight.
The fibers of the cigarette paper consist of fluff pulp.
The fire retardant of the cigarette paper is sodium chloride.
The adhesive of the cigarette paper is guar gum.
The specific implementation process is as follows:
1) After defibrating 36kg of fluff pulp, uniformly spreading on a forming net;
2) Preparing 10kg of guar gum, 60kg of sodium chloride and water into slurry in a mixing tank;
3) The slurry was uniformly sprayed on the fibrous substrate by spraying, and the cigarette paper of example 5 was obtained through a drying step.
The cigarette paper of example 5 above was quantified at 50-70g/m 2, bulk 2.89-3.02cm 3/g, and tensile strength 0.6kN/m.
Example 6
The embodiment provides novel heating non-combustible cigarette paper, which comprises 36% of fibers, 10% of adhesives and 54% of flame retardants in parts by weight.
The fibers of the cigarette paper consist of fluff pulp.
The fire retardant of the cigarette paper is sodium chloride.
The adhesive of the cigarette paper is sodium carboxymethyl cellulose.
The specific implementation process is as follows:
1) After defibrating 36kg of fluff pulp, uniformly spreading on a forming net;
2) Preparing 10kg of sodium carboxymethyl cellulose, 60kg of sodium chloride and water into slurry in a mixing tank;
3) The slurry was uniformly sprayed on the fibrous substrate by spraying, and the cigarette paper of example 6 was obtained through a drying step.
The cigarette paper of example 6 above was quantified at 50-70g/m 2, bulk 3.11-3.28cm 3/g, and tensile strength 0.4kN/m.
Comparative example 1
The traditional cigarette is used as a control.
The traditional cigarette paper mainly comprises wood pulp, inorganic filler, combustion improver and the like, and is generally prepared by a conventional papermaking process.
Comparative example 2
Prepared by conventional papermaking processes using 65% fiber, 10% calcium carbonate, 5% guar gum, 20% zinc borate.
The cigarette paper has a basis weight of 50-70g/m 2, a bulk of 2.47-2.58cm 3/g and a tensile strength of 0.5kN/m.
1. Flame retardant test
Each of the above examples 1-6 and conventional cigarette paper was cut into test strips each 20cm long and 1cm wide. The test strips were ignited by an alcohol burner (5 cm before the test strips for ignition), and when the flame was burned to 5cm, the open flame on the test strips was extinguished (the test strips were in smoldering state at this time), and the smoldering time and smoldering length recorded on the test strips were recorded to test the flame retardant properties of each experimental example and conventional cigarette paper, and the test results are shown in the following tables 1 and 2 (comparative example 1 and examples 1 to 6, respectively, from top to bottom):
TABLE 1 test results of flame retardant test
| Average smoldering length (cm) | Average smoldering time(s) | |
| Comparative example 1 | 8.1 | 41.7 |
| Comparative example 2 | 6.5 | 24.4s |
| Example 1 | 0.3 | 1.6 |
| Example 2 | 0.6 | 2.7 |
| Example 3 | 0.4 | 2.2 |
| Example 4 | 3.0 | 14.1 |
| Example 5 | 4.2 | 15.8 |
| Example 6 | 3.4 | 18.2 |
As can be seen from the experimental results in Table 1, the cigarette paper prepared by the cigarette paper formulation of the present invention has a better flame retardant effect than the conventional cigarette paper, wherein the flame retardant effect of example 1 is the best.
2. Cigarette paper suitability test:
The fire-retardant capability of the cigarette paper is different because of different core materials filled in the non-combustible cigarettes heated by different heaters. Therefore, a cigarette paper applicability test is designed to test the flame retardant property of the cigarette paper prepared by the cigarette paper formula after various cigarette core materials are rolled, and the applicability of the cigarette paper to different cigarette core materials is tested.
The above examples 1-6 and conventional cigarette paper were rolled/filled into cigarettes with conventional tobacco cut filler (ordered), 30% smoke agent-containing material (unordered), flavor-containing core material (unordered), and tobacco particles, respectively, having a length of 94mm (with a filter length of 34 mm). Different cigarettes were ignited with fire (5 mm before) and were tested for flame retardance as follows:
TABLE 2 flame retardance test results for different cigarettes
As can be seen from the test results in Table 2, the cigarette paper prepared by the cigarette paper formula has good flame retardant effect with cigarettes rolled by or filled with different types of cigarette core materials in different forms, and the cigarette paper prepared by the cigarette paper formula is applicable to cigarettes rolled by or filled with most of conventional cigarette core materials, provides corresponding flame retardant effect, and has wide application range.
3. Combustion performance of cigarette paper in heating non-combustion cigarette smoking set:
the cigarette paper prepared by adopting the traditional cigarette paper and the cigarette paper prepared by the embodiment 1-6 is used for making cigarettes, the cigarettes with the circumferential structures are heated at different temperatures, the burning performance of the traditional cigarette paper and the cigarette paper prepared by the cigarette paper formula is tested and compared, and the test result is as follows:
table 3 results of test of the burn properties of cigarette paper
As can be seen from the test results in Table 3, the cigarette paper prepared by the cigarette paper formula of the invention does not cause combustion at 500 ℃, and the cigarette paper of the invention can enable the cigarette to have higher heating temperature and enable substances in the cigarette to be released better.
4. Air permeability test of cigarette paper
Air permeability characterizes the amount of air per minute that a certain area of paper is permeable or the time that a certain amount of air is permeable under a certain vacuum. The air permeability of the conventional cigarette paper and the cigarette papers prepared in examples 1 to 6 was measured with an air permeability tester under the same test area, and the measurement results were as follows:
table 4 results of the test for air permeability of cigarette paper
| Project | Air permeability (ml/min) |
| Traditional cigarette paper | 112 |
| Example 1 | 197 |
| Example 2 | 184 |
| Example 3 | 189 |
| Example 4 | 289 |
| Example 5 | 298 |
| Example 6 | 338 |
As can be seen from the test results in Table 4, the cigarette paper prepared by the cigarette paper formula provided by the invention has better air permeability, can be heated more fully and uniformly in the heating process of the cigarette, and can release smoke generated by the cigarette better, wherein the air permeability of experimental example 6 is the best.
5. Cigarette paper heat conduction property test
The thermal conductivity is that 1m thick material with temperature difference of 1 degree (K, ° C.) on two side surfaces under stable heat transfer condition, and heat transferred through 1 square meter area in watt/meter degree is transferred in a certain time. The thermal conductivity of the conventional cigarette paper and the cigarette papers prepared in examples 1 to 6 were measured by a thermal constant tester, and the measurement results were as follows:
table 5 test results of thermal conductivity of cigarette paper
| Project | Coefficient of thermal conductivity (W/m.K) |
| Traditional cigarette paper | 0.06 |
| Example 1 | 0.11 |
| Example 2 | 0.08 |
| Example 3 | 0.1 |
| Example 4 | 0.1 |
| Example 5 | 0.09 |
| Example 6 | 0.08 |
As can be seen from the test results in Table 5, the heat conductivity of the cigarette paper prepared in other examples except example 5 is higher than that of the conventional cigarette paper, which indicates that the cigarette paper prepared by the cigarette paper formula can enhance the heat conductivity of cigarettes, and the cut tobacco in the cigarettes can be heated more quickly and more sufficiently. Among them, the heat conductive property of example 1 is the best.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (8)
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| CN109832661A (en) * | 2017-11-28 | 2019-06-04 | 上海新型烟草制品研究院有限公司 | The cigarette paper of cigarette of not burning for self-heating and self-heating are not burnt cigarette |
| CN110629583A (en) * | 2018-06-21 | 2019-12-31 | 湖南中烟工业有限责任公司 | Heat-conducting and flame-retardant cigarette paper for cigarettes and its preparation method and application |
| CN112384083A (en) * | 2018-11-23 | 2021-02-19 | 美格咨询有限责任公司 | Improved process for the preparation of smoking products of the heated but not combustible type |
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| CN107048469B (en) * | 2017-06-19 | 2019-10-18 | 共青城道乐投资管理合伙企业（有限合伙） | A processing method for heat-not-burn cigarettes |
| CN111543669A (en) * | 2020-06-10 | 2020-08-18 | 河南中烟工业有限责任公司 | A kind of preparation method of heat not burn cigarette sheet |
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| CN104486955A (en) * | 2012-05-09 | 2015-04-01 | 拉尼希·勒贝克 | Tobacco products that produce a lower carbon monoxide to tar ratio |
| CN105040530A (en) * | 2015-07-06 | 2015-11-11 | 湖北中烟工业有限责任公司 | Composite flame-retardant electric heating cigarette paper, and preparation method thereof |
| CN109832661A (en) * | 2017-11-28 | 2019-06-04 | 上海新型烟草制品研究院有限公司 | The cigarette paper of cigarette of not burning for self-heating and self-heating are not burnt cigarette |
| CN110629583A (en) * | 2018-06-21 | 2019-12-31 | 湖南中烟工业有限责任公司 | Heat-conducting and flame-retardant cigarette paper for cigarettes and its preparation method and application |
| CN112384083A (en) * | 2018-11-23 | 2021-02-19 | 美格咨询有限责任公司 | Improved process for the preparation of smoking products of the heated but not combustible type |
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