CN111802702B - Flavor slow-release material, heating rod, cigarette holder rod, preparation method of flavor slow-release material and cigarette holder rod, and application of flavor slow-release material and cigarette holder rod in heating of non-combustible tobacco products - Google Patents
Flavor slow-release material, heating rod, cigarette holder rod, preparation method of flavor slow-release material and cigarette holder rod, and application of flavor slow-release material and cigarette holder rod in heating of non-combustible tobacco products Download PDFInfo
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- CN111802702B CN111802702B CN201910280896.6A CN201910280896A CN111802702B CN 111802702 B CN111802702 B CN 111802702B CN 201910280896 A CN201910280896 A CN 201910280896A CN 111802702 B CN111802702 B CN 111802702B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F47/00—Smokers' requisites not otherwise provided for
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- 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
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
Abstract
The invention belongs to the technical field of heating non-combustible tobacco products, and particularly discloses a fragrance slow-release material which comprises a paper base material and a polymer layer compounded on the surface of the paper base material; the paper substrate and/or the polymer layer contains essence and perfume. The invention also provides a preparation method and application of the flavor slow-release material, and in addition, the invention also comprises a heating rod and a cigarette holder rod which are compounded with the flavor slow-release material, and a heating non-burning tobacco product. The invention innovatively discovers that the high-adsorptivity paper base material is taken as a framework material, the surface of the high-adsorptivity paper base material is coated with a polymer, and essence and perfume are distributed in the paper base material and/or the polymer, so that the fragrance slow-release material is obtained. The invention innovatively uses the paper base material as the bearing material, and further uses the adsorption and encapsulation functions of the paper base material and the polymer on the essence and the perfume, thereby effectively realizing the fixation and slow release of the essence and the perfume.
Description
Technical Field
The invention relates to a fragrance slow-release material and application thereof in heating non-combustible tobacco products, and belongs to the technical field of novel tobacco products.
Background
The heating non-combustible tobacco product (also called low-temperature cigarette, HNB) is a novel tobacco product with the flavor characteristics closest to those of the traditional cigarettes, and the smoke has low harmful chemical components and biological toxicity. However, since the tobacco material portion of HNB is continuously in a "high temperature environment" of about 180-350 ℃, which is significantly different from the "mouth-by-mouth combustion" of conventional cigarettes, the release of the flavoring substances, especially the release of the highly volatile additional flavoring substances, is very uneven, and tends to be almost volatilized completely in the first mouth and the second mouth, so that the difference between the smoking taste and the taste is relatively large, and the quality stability and the taste style of the product are difficult to ensure. Therefore, the problem of uniformity of HNB fragrance from mouth to mouth is solved, and the method is a key basic technology for endowing HNB products with better sensory quality and stable style characteristics. Without the technology, the perfume mixing creation of the perfume mixing engineer has no way of development, and the HNB perfume mixing is the air pavilion.
At present, some researches are carried out on the technology of controlling the slow release of fragrance at home and abroad, and the main methods comprise: (1) Adding fragrance precursor, and heating at high temperature or burning for cracking to obtain fragrance substance. (2) adding microcapsules. The perfume and essence are coated by coating and other technical means, and the perfume and essence is released by breaking or degrading the capsule wall. (3) And (3) adding an adsorbent, and adsorbing the essence and the perfume by utilizing the porous structure of the adsorbent.
However, the above-described flavor-releasing method is not entirely applicable to HNB. Because the heating temperature is far lower than the combustion temperature of the traditional cigarettes, some fragrance precursors cannot be cracked to generate fragrance substances, or the fragrance precursors cannot be released because the cracking temperature of the microcapsule wall materials cannot be reached, or the fragrance precursors cannot be slowly and uniformly released only by the adsorption capacity of the adsorbent. In addition, there are few researches on the technology of slow release of flavor of heating non-combustible tobacco products, but most of the researches are directed at monomer flavors with certain special structures or categories such as menthol, beta-ionone and the like, the technical means are limited, and especially the research on the technology of slow release of flavor with production and application values is lacking.
Disclosure of Invention
The first object of the present invention is to provide a fragrance slow-release material having a fragrance slow-release effect.
The second object of the invention is to provide a preparation method of the fragrance slow-release material.
A third object of the present invention is to provide the use of the fragrance slow-release material.
The fourth object of the present invention is to provide a fragrance sustained-release heating rod to which the fragrance sustained-release material is added.
A fifth object of the present invention is to provide a flavor-releasing cigarette holder rod to which the flavor-releasing material is added.
A sixth object of the present invention is to provide a heated non-combustible tobacco product incorporating the flavor-releasing heating rod and/or flavor-releasing tipping rod.
A fragrance slow-release material comprises a paper base material and a polymer layer compounded on the surface of the paper base material;
the paper substrate and/or the polymer layer contains essence and perfume.
The invention innovatively discovers that the high-adsorptivity paper base material is taken as a framework material, the surface of the high-adsorptivity paper base material is coated with a polymer, and essence and perfume are distributed in the paper base material and/or the polymer, so that the fragrance slow-release material is obtained. The invention innovatively uses the paper base material as the bearing material, and further uses the adsorption and encapsulation functions of the paper base material and the polymer on the essence and the perfume, thereby effectively realizing the fixation and slow release of the essence and the perfume.
The fragrance slow-release material provided by the invention is a hierarchical structure comprising a paper base material and a polymer layer covering the paper base material. The fragrance slow-release material with the structure can utilize the synergism of the paper base material and the polymer in the flavoring aspect, can effectively prevent the quick volatilization of the essence and the spice, slowly and uniformly release the fragrance in the sucking process, improve the sensory quality of sucking mouth by mouth, and endow the heated non-burning tobacco products with stable quality and style characteristics.
In the present invention, the gram of the paper substrateHeavy weight>10g/m 2 . The paper substrate is preferably a paper with good adsorptivity and no sensory odor.
The paper substrate of the invention has better adsorptivity (gram weight>10g/m 2 ) The invention has various functions, namely, the invention is used as a bearing material to improve the process operability; and secondly, the slow release effect of the essence and the spice is synergistically improved by cooperating with the polymer as a host of the essence and the spice.
The inventor researches find that the paper base material with proper gram weight is favorable for improving the synergistic effect of the polymer, so that the fragrance slow-release effect of the fragrance slow-release material is further improved; and the production continuity, the blending uniformity, the rolling adaptability and the like of the fragrance slow-release material are improved, so that the fragrance slow-release material is more beneficial to industrial production and application.
As preferable: the grammage of the paper base material is not less than 15g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the Further preferably not less than 25g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the More preferably 35 to 150g/m 2 . The invention researches find that the preferable grammage paper base material and polymer have better effect in the fragrance slow release aspect.
The paper substrate according to the present invention may be made of materials well known in the industry.
As preferable: the paper substrate comprises a fibrous support material.
The fiber supporting material comprises one or more of wood pulp fiber, fibrilia, cotton fiber, grass fiber and other papermaking fiber raw materials.
In the present invention, the polymer layer may be compounded on either surface (front and/or back) of the paper substrate.
The invention innovatively utilizes the adsorption and encapsulation effects of the polymer on the aroma and the fragrance, and the synergistic effect on the bearing of the paper base material and the host effect on the aroma and the fragrance, so as to jointly achieve the aim of releasing the fragrance.
In the invention, the polymer of the polymer layer is a water-soluble or alcohol-soluble polymer material with film forming property.
The polymer of the polymer layer is one or a combination of a plurality of hydroxypropyl methyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropyl cellulose, methyl cellulose and ethyl cellulose. The preferable polymer materials can adsorb, embed and carry essence and perfume at normal temperature, thereby effectively preventing the quick volatilization of aroma components and slowly and uniformly releasing the aroma components at the working temperature of the non-burning tobacco products.
The molecular weight of the polymer layer is preferably 5 to 150 ten thousand.
Preferably, the polymer layer contains essence and perfume, and one or more polymer A layers are further compounded on the surface of the polymer layer; the polymer A layer does not contain essence and perfume.
The present inventors have found that when the perfume is added to the polymer layer, it is preferable to further compound a layer of polymer a containing no perfume on the surface thereof. The preferred fragrance slow-release material comprises a paper substrate, a polymer layer middle layer containing essence and perfume and a polymer A layer surface layer without essence and perfume. The inventors have found that the preferred fragrance delivery materials unexpectedly have a superior fragrance delivery effect. The polymer layer with the multilayer structure can realize the gradual and accurate release of essence and spice.
Preferably, the polymers of the polymer a layer and the polymer layer are the same or different.
The molecular weight of the polymer in the polymer a layer is preferably 5 to 150 ten thousand, and more preferably at least one of hydroxypropyl methylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropyl cellulose, methyl cellulose, and ethyl cellulose.
Preferably, the total content (loading rate) of the polymers in the flavor-releasing material is not less than 1wt%.
In the present invention, the total content of the polymers refers to the total amount of the polymers adsorbed in the paper substrate, the polymers A coated on the surface layer, and the polymers adsorbed in the paper substrate in the fragrance slow-release material. The method for measuring the load factor comprises the following steps: cut 1m length of uncoated base paper, weigh and record its weight as Q 0 The method comprises the steps of carrying out a first treatment on the surface of the Cutting 1m longThe fragrance slow-release material after being coated and dried is weighed, and the weight of the fragrance slow-release material is recorded as Q 1 The method comprises the steps of carrying out a first treatment on the surface of the Load factor L (%) = (Q) of fragrance slow-release material on fragrance slow-release material 1 -Q 0 )/Q 0 *100％。
The research shows that the larger the polymer loading rate is, the better the coating effect on the spice is, and the thickness, hardness and gram weight of the material are also increased, so that the material is easier to mix with tobacco materials uniformly to be rolled into cigarettes.
Preferably, the total content of the polymers in the fragrance slow-release material is 1 to 90wt%.
The slow-release perfuming technology has universality on essence and spice; the technology can be applied to the essence and spice which are allowed to be added in the industry in theory to realize the slow release effect.
Preferably, the essence perfume is at least one of synthetic perfume raw materials, natural perfume raw materials, perfume bases or essence. Preferably, the tobacco flavor material can be added into the heated non-combustible tobacco products to be singly emphasized or highlighted, such as furanone, menthol, ethyl maltol and the like; further preferably, the flavoring essence for cigarettes and the top note essence containing characteristic flavor can be adopted. The loading of the perfume and flavor on the paper depends on the characteristic fragrance threshold of the perfume raw material itself and the formulation design goal of the HNB product.
Preferably, the paper substrate layer and/or the polymer layer further comprises a functional additive for at least one of moisturizing, enhancing adsorption of fragrance substances, supplementing smoke and aroma, and adjusting physical properties of the material.
The humectant is at least one of glycerol, propylene glycol and polyethylene glycol.
The aroma-enhancing adsorbent is at least one of diatomite, activated carbon, chitosan, cyclodextrin and starch.
Further preferred is: the functional additive is one or more of glycerol, propylene glycol, polyethylene glycol, diatomite, active carbon, chitosan, cyclodextrin and starch. The research shows that the addition of the functional materials can realize the original functions, and can cooperate with the paper base material, the polymer and the polymer structure to further improve the fragrance slow release effect to a certain extent.
The functional additive can be selectively added according to the preparation requirement, and the preferable total addition amount is not more than 60 weight percent of the weight of the flavor slow-release material.
As preferable: the paper substrate layer and/or the polymer layer may also be allowed to contain a colorant.
The colorant of the invention can be used for adjusting the color of the flavor slow-release material to be close to the natural color of tobacco. The coloring agent includes, but is not limited to, one or more of tobacco colors, food colors.
The invention also provides a preparation method of the fragrance slow-release material, which comprises the following steps: the fragrance slow-release material is prepared by adopting a coating method according to the structure of the fragrance slow-release material.
The preparation method comprises the following three embodiments:
mode a: coating the solution containing the essence and the spice and the polymer on the paper substrate, and drying to obtain the paper substrate. The fragrance slow-release material prepared by the method comprises a paper base material and a polymer layer compounded on the surface of the paper base material; wherein the polymer layer contains a fragrance component. In mode a, the solution comprising the perfume, the polymer, is allowed to partially embed into the paper substrate during the coating process.
Mode B: coating the solution containing the essence and the perfume on a paper substrate in advance, drying, then coating the solution containing the polymer, and drying to obtain the product. The fragrance slow-release material prepared by the preferred preparation method comprises a paper base material loaded with essence and perfume and a polymer layer coating the paper base material.
Mode C: coating the solution containing the essence and the perfume and the polymer on the paper substrate in advance, drying, then coating the solution containing the polymer A, and drying to obtain the product. The fragrance slow-release material prepared by the preferred preparation method comprises a paper base material, wherein the surface of the paper base material is a polymer layer containing essence and perfume, and the surface of the polymer layer is also compounded with a polymer layer A; no perfume was added to the polymer layer a. In mode C, the solution comprising the perfume, the polymer, is allowed to partially embed into the paper substrate during the coating process. The inventor researches and discovers that the fragrance slow-release material prepared in the mode C has better fragrance slow-release effect.
In the preparation process, the materials are dissolved by adopting a solvent capable of dissolving the essence and the spice and/or the polymer, so as to prepare the corresponding coating liquid.
The solvent is water, or an organic solvent which is mutually soluble with water, or a mixture of a plurality of organic solvents which are mutually soluble with water, or an aqueous solution of the solvents. Wherein the water-miscible organic solvent is acetone, ethyl lactate or ethanol.
In the method of the present invention, the coating operation may refer to existing methods including knife coating, roll transfer, dip coating, spray coating, and the like.
The invention also provides application of the flavor slow-release material, which is used for preparing heating non-combustible tobacco products; preferably for the preparation of heating rods for heating non-combustible tobacco products; it is further preferable to cut the tobacco material and mix the cut tobacco material with the tobacco material to prepare a heating rod.
The invention also provides application of the flavor slow-release material, which is used for preparing heating non-combustible tobacco products; it is preferably cut, folded or rolled for use in preparing a mouth stick for a heated non-combustible tobacco product.
The flavor slow-release material can be cut into any shape and size used for heating non-combustible smoke using existing methods.
The invention also provides a fragrance slow-release heating rod for heating the non-combustible tobacco products, which comprises the fragrance slow-release material and tobacco raw materials. The tobacco raw material can be cut tobacco and/or tobacco powder.
Preferably, the aroma slow release heating rod for heating the non-combustible tobacco products is a single-element rod or a multi-element rod.
The invention also provides a fragrance slow-release cigarette holder rod of the heating non-combustible tobacco product, which comprises the fragrance slow-release material.
Preferably, the aroma slow release heating rod for heating the non-combustible tobacco products is a single-element rod or a multi-element rod.
The invention also provides a heating non-combustible tobacco product, which comprises the aroma slow-release heating rod and/or the aroma slow-release cigarette holder rod.
The beneficial effects are that:
1. the invention innovatively takes the paper with high adsorptivity and no peculiar smell as a framework material, the surface of the paper is coated with a polymer, and essence and perfume are distributed in the paper base material and/or the polymer; the material can effectively inhibit volatilization of the fragrant substances at normal temperature, and slowly and uniformly release the fragrant substances at the HNB working temperature, thereby greatly improving the release uniformity of the fragrant substances in the sucking process, improving the sucking quality and providing technical support for developing the heating non-burning tobacco products with good sensory quality and vivid style characteristics.
2. The preferred paper substrate, the multi-layer composite fragrance-releasing material comprising the fragrance and flavor polymer intermediate layer and the polymer outer layer (polymer A layer) has better fragrance releasing effect.
3. The essence disclosed by the invention is wide in application range, and a slow-release target object not only relates to volatile or semi-volatile monomer perfume, but also contains water-soluble and fat-soluble essence or perfume base with complex components, so that the fragrance richness of HNB smoke can be better improved, the quality can be improved, the quality stability of HNB products can be improved, and a technical foundation for endowing the products with style characteristics by using the essence and perfume can be laid.
4. The invention has the most outstanding advantages that the raw materials of the flavor slow-release material are cheap and easy to obtain, the process operability is strong, the flavor slow-release material is easy to cut into shreds and is uniformly mixed with other tobacco materials, the HNB cigarette rolling can be directly carried out by using conventional cigarette rolling equipment, and the flavor slow-release material is suitable for the existing cigarette production and manufacturing process.
Drawings
FIG. 1 shows a fragrance slow-release material prepared in example 3.
FIG. 2 is a thermogravimetric curve of the fragrance slow-release material prepared in example 3.
Specific embodiments:
the invention is further described below in connection with specific embodiments. The following examples are intended to illustrate the invention and are not intended to be limiting.
The average molecular weight of the polymers of cases 1-6 was 86000, the viscosity was 60-100mPa.s, and the average molecular weight of the polymer of case 7 was 75000.
Example 1
The essence A is a common tobacco essence, and comprises a plurality of common volatile and semi-volatile flavor components, and mainly comprises: water, ethyl butyrate, ethyl 2-methylbutyrate, ethyl isovalerate, furfural, hexyl caproate, 3-methyl-pyrazine, 2-ethyl-3-methyl pyrazine, benzaldehyde, acetophenone, megastigmatrienone, geranylacetone, beta-damascenone, dihydrodamascenone, menthol, methyl phenylacetate, tobacco extract, fig extract, apple extract, jujube tincture, vanilla tincture, benzoin, licorice fluid extract, and the like.
In order to promote the slow and uniform release of essence A in the heating stage, the solution has a gram weight of 17g/m 2 Is characterized in that the high adsorptivity hemp pulp paper (with the manila hemp pulp, the water absorption is approximately 5 g/m) 2 ) The essence A is adsorbed and fixed for the supporting material. The specific implementation method is as follows: 360g of essence A,90g of hydroxypropyl methylcellulose and 3kg of 85% ethanol solution are weighed and mixed together, and after the materials are completely dissolved, the coating liquid is obtained by stirring uniformly. The coating liquid is coated on paper in a roller transfer mode, the coated paper is conveyed into a drying box along with a conveying belt, and moisture is removed by low-temperature drying at 50 ℃ to obtain the fragrance slow-release material loaded with the essence A. The paper has strong adsorption capacity, wherein the loading rate of the essence A and the film material (hydroxypropyl methylcellulose) on dry paper is 4.0%. In addition, it has been found that 17g/m is used 2 The high-adsorptivity hemp pulp paper is used as a supporting material, and the paper strength is insufficient due to low gram weight, so that paper breakage easily occurs in the coating process, and the process continuity is poor. Subsequent studies were therefore intended to optimize the development of tests on highly absorbent papers with greater grammage.
The flavor slow-release material is cut into shreds, then mixed with tobacco sheets in a proportion of 3%, rolled into a heating rod, and the heating rod and a cigarette holder rod are assembled into a heated non-burning cigarette, and sensory evaluation and smoking comparison are carried out on the heated non-burning cigarette with direct flavoring. The result shows that the first mouth has strong fragrance and the second mouth has obviously lighter fragrance when the cigarette is sucked by directly injecting the flavored cigarette, and the fragrance is basically not perceived by a plurality of mouths, so that the uniformity of releasing the fragrance from mouths is poor, and the difference of tastes before and after suction is large; the flavor sustained-release material prepared by the embodiment has good flavor persistence and mouth-to-mouth release uniformity when being added, and obvious flavor can be perceived from the first mouth to the sixth mouth and the seventh mouth.
In conclusion, the invention is suitable for tobacco essence with complex flavor components, and compared with the direct injection flavoring, the flavor sustained-release material can effectively improve the uniformity of flavor component release, remarkably improve the sensory quality of mouth-by-mouth suction and can continuously release six or seven mouths of flavor.
Example 2
Another preferred embodiment uses a high absorbency cigarette paper rod with a grammage of 25.5g/m2 (Canadian North wood pulp with a water absorbency of about 7.5 g/m) 2 ). The method comprises the following specific steps: the essence A is coated on paper, and after the solvent is removed, a layer of film material is coated on the surface of the paper.
The specific steps of the scheme are as follows: 360g of essence A is weighed, diluted to 3kg with 85% ethanol solution and stirred uniformly. The essence solution is coated on paper, the coated paper is conveyed into a drying box along with a conveying belt, and the water is removed by low-temperature drying at 50 ℃ to obtain the fragrance slow-release material A. And then preparing 3kg of hydroxypropyl methylcellulose solution with the concentration of 3% and coating the hydroxypropyl methylcellulose solution on the material A to obtain the final fragrance slow-release material. The comparison of the weights of the paper before and after coating shows that the loading rates of the essence and the film material (hydroxypropyl methylcellulose) on the materials are respectively 4.5% and 3.4%, which shows that the paper has stronger adsorption capacity. The flavor slow-release material is cut into shreds, uniformly mixed with tobacco sheets in a proportion of 3%, rolled into a heating rod, then assembled with a cigarette holder rod into cigarettes, and subjected to slow-release effect evaluation.
The results show that the perfume is only coated with the perfume and the perfume is not coated with the film material (the perfume slow-release material A in the case), the perfume can only release four or five mouths continuously, and the difference of the sensory quality of front and back suction is larger; the fragrance slow-release material added with the film material can continuously, slowly and stably release fragrance substances at the temperature of 100-300 ℃, can still feel stronger fragrance until the eighth and ninth mouths, and has better fragrance richness and harmony. In addition, the research also finds that the higher the content of the fragrance materials, the more free fragrance materials, the more lost the processing process and the lower the utilization efficiency. The added amount of the fragrant materials is large, so that the characteristics of the fragrant notes are outstanding. The specific addition ratio may be < 1% or even lower depending on the application, depending on the other fragrance to be modified.
Example 3
In another optimized embodiment, the essence A and the film material are mixed and coated on the paper, and after the solvent is removed, a layer of film material is coated on the surface of the paper. The proposal adopts the high adsorptivity cigarette paper stick paper with the gram weight of 25.5g/m2 (Canadian North wood pulp is adopted, and the water absorption is approximately equal to 7.5 g/m) 2 )。
The method comprises the following specific steps: weighing 500g of essence A,90g of hydroxypropyl methylcellulose, 2410g of 85% ethanol solution, mixing, completely dissolving, and stirring to obtain the flavoring coating liquid. The perfuming coating liquid is coated on paper in a knife coating mode, the coated paper is conveyed into a drying box along with a conveying belt, and the fragrance slow-release material A is obtained after moisture is removed by low-temperature drying at 50 ℃. And preparing 3kg of hydroxypropyl methylcellulose solution with the concentration of 3%, and coating the hydroxypropyl methylcellulose solution on the fragrance slow-release material A in a blade coating manner to obtain the final fragrance slow-release material (figure 1). As can be seen by comparing the weights of the paper materials before and after coating, the loading rate of the essence A and the film material on the fragrance slow-release material can reach 10.3 percent. The tobacco shreds are uniformly mixed with tobacco sheets in a proportion of 3%, rolled into heating rods, and then assembled with the mouth rods into cigarettes.
In order to further characterize the change of the essence weight with temperature, TG analysis was performed on essence a and high adsorptivity paper and aroma slow release materials, respectively. As shown in fig. 2, the TG curve of fragrance a shows a steep decline below 200 ℃, 60% (mass ratio) of fragrance has volatilized rapidly to 150 ℃, and only about 30% of fragrance remains up to 200 ℃; the high adsorptivity paper material has no mass change within 300 ℃; the TG curve of the fragrance slow-release material shows a slowly-decreasing curve between 100 and 300 ℃, the immobilized essence volatilizes continuously, slowly, uniformly and stably in each temperature range below 300 ℃, the weight loss rate is 5.6% at 300 ℃, the slow-release effect is further improved on the basis of the examples 1 and 2, and the fragrance is still more intense after the tenth mouth.
Example 4
In order to further examine the slow release effect of the aroma slow release material on the surface aroma essence, researches are carried out by taking the tea aroma surface aroma essence as a research object, and the tea aroma essence mainly comprises the following aroma components: water, ethyl butyrate, ethyl 2-methylbutyrate, leaf alcohol, isoamyl acetate, amyl acetate, butyl butyrate, leaf alcohol acetate, geranyl acetate, oil bergamot, tetrahydrogeraniol, terpineol, linalyl acetate, lavender oil, geranylacetone, benzyl benzoate, tea polyphenols, and the like.
According to the method of example 2, the tea aroma is coated on paper in a roll transfer mode, the coated paper is conveyed into a drying oven along with a conveying belt, and moisture is removed by low-temperature drying at 50 ℃ to obtain the aroma slow-release material A. And preparing 3kg of hydroxypropyl methylcellulose solution with the concentration of 4 percent, and coating the hydroxypropyl methylcellulose solution on the fragrance slow-release material A to obtain the final fragrance slow-release material. As can be seen by comparing the weights of the paper materials before and after coating, the loading rates of the tea aroma essence and the film material on the aroma slow-release material are 3.8% and 3.7%, respectively. The tobacco shreds are uniformly mixed with tobacco sheets in a proportion of 2%, rolled into heating rods, and then assembled with the mouth rods into cigarettes.
Sensory evaluation and analysis test results show that the fragrance slow-release material can effectively realize the immobilization and slow release of the tea fragrance, so that fragrance substances can be continuously, slowly and uniformly released at the temperature of 100-300 ℃, obvious tea fragrance can be emitted, and more than eight and nine openings can be continuously and uniformly released.
Example 5
According to the method of example 3, a gram weight of 35g/m with a larger adsorption amount is used instead 2 High adsorptivity paper stick for cigarettePaper (Canadian North wood pulp, water absorption approximately 10 g/m) 2 ) And (3) applying a coating solution containing tea aroma essence (16%), hydroxypropyl methylcellulose (4%) and an 85% ethanol solution (80%) to the paper, conveying the coated paper along with a conveying belt into a drying oven, and drying at a low temperature of 50 ℃ to remove water to obtain the aroma slow-release material A. And preparing 3kg of hydroxypropyl methylcellulose solution with the concentration of 5%, and coating the hydroxypropyl methylcellulose solution on the fragrance slow-release material A to obtain the final fragrance slow-release material. By comparing the weights of the paper materials before and after coating, the loading rate of the tea aroma essence and the film material on the materials is 11.5 percent. The tobacco shreds are uniformly mixed with tobacco sheets in a proportion of 2%, and are rolled into heating rods on a fine cigarette rolling device to be assembled into cigarettes.
Sensory evaluation and analysis test results show that the fragrance slow-release material can effectively realize the fixation and slow release of the tea fragrance, so that fragrance substances can be continuously, slowly and uniformly released at the temperature of 100-300 ℃, the fragrance is very thick and prominent, the slow-release effect is further improved on the basis of the embodiment 4, the fragrance of the first mouth is lighter than that of the embodiment 4, but the fragrance release is longer, and the fragrance can still be perceived to be stronger until the last two mouths.
Example 6
A further optimization and improvement is made on the basis of the embodiment 5, firstly, the coloring agent is added: adding a coloring agent into the flavor slow-release material to enable the color of the material to be more similar to that of cut tobacco; secondly, the coating method is improved, and the film material loading rate is improved: the coating is carried out for three times, the first coating contains the essence and perfume mixed solution of colorant and the membrane material, and the second and third coating hydroxypropyl methyl cellulose solutions are carried out to enhance the coating of the fragrance. The method comprises the following specific steps: 720g of tea aroma essence, 100g of hydroxypropyl methylcellulose, 20g of gardenia extract, 120g of caramel extract and 2040g of 85% ethanol solution are weighed and mixed together, and after complete dissolution, the aroma coating liquid is obtained by stirring uniformly. The aroma coating liquid is coated to 35g/m gram weight by a knife coating mode 2 On the high-adsorptivity paper stick paper for cigarettes, the coated paper is conveyed into a drying box along with a conveying belt, and is dried at a low temperature of 50 ℃ to remove water, so that the fragrance slow-release material A is obtained. And preparing 3kg of hydroxypropyl methylcellulose solution with the concentration of 4 percent, coating the hydroxypropyl methylcellulose solution on the fragrance slow-release material A, and coating a layer of 4 percent hydroxypropyl methylcellulose solution after drying to obtain the final fragrance slow-release material. As can be seen by comparing the weights of the paper materials before and after coating, the loading rate of the fragrance slow-release material on the material can reach 13.7 percent. The shredded tobacco is uniformly mixed with tobacco shreds in a proportion of 3%, and the mixture is rolled into a heating rod on a fine cigarette rolling device to be assembled into cigarettes.
Sensory evaluation and analysis test results show that the fragrance slow-release material can continuously, slowly and uniformly release fragrance substances at the temperature of 100-300 ℃ until the last two openings still can feel stronger fragrance. The added natural colorant does not have negative influence on sense, a small amount of aroma components released by the caramel extract are coordinated with tea aroma, and meanwhile, the aroma slow-release material prepared by adopting paper with larger gram weight is found to have increased hardness and thickness, so that the aroma slow-release material is easier to uniformly mix with other tobacco materials. In addition, we also find that the material can still emit very intense tea fragrance after being stored for 5 months in a room temperature environment, which indicates that the fragrance slow-release material can effectively prolong the storage time of the surface fragrance essence with strong volatility.
Example 7
A12% strength tea aroma was applied to a wood pulp-based double dry (WD) electrolytic paper (50 g/m grammage 2 Water absorption of about 10g/m 2 ) The paper contains wood pulp fiber and cotton fiber, wherein the content of the cotton fiber is up to 40%, and the paper has strong adsorption capacity. And (3) conveying the coated paper to a drying box along with a conveying belt, and drying at a low temperature of 50 ℃ to remove water to obtain the fragrance slow-release material A. And preparing 3kg of polyvinyl alcohol 0588 solution with the concentration of 3%, and coating the solution on the fragrance slow-release material A to obtain the final fragrance slow-release material. As can be seen by comparing the weights of the paper before and after coating, the loading rates of the tea aroma and the film material on the material were 6.3% and 3.5%, respectively. The cigarette is bundled and folded by a filter tip forming machine, cut and combined with a common filter tip to form a composite filter tip, and then assembled and rolled with a tobacco heating rod to form a cigarette.
Sensory evaluation and analysis test results show that the flavor slow-release material is applied to the tip end, can remarkably improve the slow-release effect of the tea flavor essence, can continuously and uniformly release more than eight mouths, and has coordinated and natural tea flavor.
Table 1 shows the evaluation of the effect of the fragrance sustained-release material
The present invention is not limited to the above-described specific embodiments, and any method for coating a flavor-releasing material containing a film material on a paper material to prepare a flavor-releasing material for a heating non-combustible tobacco product is within the scope of the present invention.
Claims (26)
1. A flavor slow release material for preparing a heating rod for heating a non-combustible tobacco product, characterized in that: comprises a paper substrate, a polymer layer compounded on the surface of the paper substrate, and one or more polymer A layers compounded on the surface of the polymer layer; the polymer A layer does not contain essence and spice;
the polymer layer contains essence and spice;
the grammage of the paper base material is 25g/m 2 The paper material has no peculiar smell in sense;
the paper substrate comprises a fibrous support material;
the polymer of the polymer layer is water-soluble or alcohol-soluble and is a polymer material with film forming property;
the polymer in the polymer A layer is at least one of hydroxypropyl methylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropyl cellulose, methylcellulose and ethylcellulose.
2. A fragrance delivery material according to claim 1, wherein: the gram weight of the paper base material is 35-150 g/m 2 。
3. A fragrance delivery material according to claim 1, wherein: the fibrous support material comprises one or more of wood pulp fibers, hemp fibers, cotton fibers, and grass fibers.
4. A fragrance delivery material according to claim 1, wherein: the polymer layer is compounded on any surface of the paper base material.
5. A fragrance delivery material according to claim 1, wherein: the molecular weight of the polymer layer is 5-150 ten thousand.
6. A fragrance delivery material as claimed in claim 5, wherein: the polymer of the polymer layer is one or more of hydroxypropyl methyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropyl cellulose, methyl cellulose and ethyl cellulose.
7. A fragrance delivery material according to claim 1, wherein: the polymers of the polymer a layer and the polymer layer are the same or different.
8. A fragrance delivery material according to claim 1, wherein: the total content of the polymers in the fragrance slow-release material is not less than 1wt%.
9. A fragrance delivery material according to claim 8, wherein: the total content of the polymers in the fragrance slow-release material is 1-90 wt%.
10. A fragrance delivery material according to claim 1, wherein: the essence perfume is at least one of synthetic perfume raw materials, natural perfume raw materials, perfume base or essence.
11. A fragrance delivery material according to claim 1, wherein: the paper base material and/or the polymer layer also comprises a functional additive for at least one of moisturizing, enhancing the adsorption of the fragrant substances, supplementing smoke and aroma and regulating the physical properties of the material.
12. A fragrance delivery material according to claim 11, wherein: the functional additive
Is a humectant and/or a flavoring adsorbent.
13. A fragrance delivery material as claimed in claim 12, wherein: the humectant is at least one of glycerol, propylene glycol and polyethylene glycol.
14. A fragrance delivery material as claimed in claim 12, wherein: the aroma-enhancing adsorbent is at least one of diatomite, activated carbon, chitosan, cyclodextrin and starch.
15. A fragrance delivery material according to claim 11, wherein: the total addition amount of the functional additives is not more than 60wt% of the weight of the flavor slow-release material.
16. A fragrance delivery material according to claim 1, wherein: the paper substrate and/or the polymer layer further comprises a colorant.
17. A method for preparing a fragrance slow-release material according to any one of claims 1 to 16, characterized in that: is prepared by a coating method.
18. A method of preparing a fragrance delivery material according to claim 17, wherein: the method comprises the steps of coating a solution containing essence and perfume and a polymer on a paper substrate in advance, and coating a solution containing a polymer A after drying.
19. Use of a fragrance slow release material according to any one of claims 1 to 16 or a fragrance slow release material prepared by a preparation method according to claim 17 or 18, characterized in that: cutting and mixing with tobacco raw materials to obtain the heating rod.
20. Use of a flavour slow release material as claimed in claim 19, wherein: it is used for preparing the cigarette holder rod of the heating non-burning tobacco product.
21. Use of a flavour release material according to claim 20, wherein: cutting, folding or curling to obtain the cigarette holder stick.
22. The utility model provides a heating does not burn fragrance slow release heating rod of tobacco product which characterized in that: comprises tobacco material; further comprising a fragrance slow-release material according to any one of claims 1 to 16, or a fragrance slow-release material produced by the production method of claim 17 or 18.
23. The aroma slow release heating rod of claim 22 for heating non-combustible tobacco products, wherein: is a single-element rod or a multi-element composite rod.
24. A slow release cigarette holder stick of fragrance of a heating non-burning tobacco product, which is characterized in that: a fragrance slow-release material according to any one of claims 1 to 16 or a fragrance slow-release material produced by the production method of claim 17 or 18.
25. The flavor slow release mouth stick of a heated non-burning tobacco product of claim 24 wherein: is a single-element rod or a multi-element composite rod.
26. A heated non-combustible tobacco product, characterized by: a fragrance slow release heating rod according to any one of claims 22 to 23 and/or 24 to 25.
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| CN113892681B (en) * | 2021-10-26 | 2023-07-28 | 湖北中烟工业有限责任公司 | Flavoring paper tube for cigarettes and preparation process thereof |
| CN114176253B (en) * | 2021-12-29 | 2023-11-07 | 四川中烟工业有限责任公司 | Filter rod material pre-folding and converging device |
| CN115474706A (en) * | 2022-11-01 | 2022-12-16 | 云南中烟工业有限责任公司 | Solid essence with sandwich type structure and preparation method thereof |
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