Fragrant paper matched with cigarette and preparation method thereof

Abstract

The invention relates to the technical field of cigarette matching paper processing, and particularly discloses cigarette matching fragrant paper and a preparation method thereof.The cigarette matching fragrant paper comprises a cigarette paper base body and microcapsule essence materials, and the microcapsule essence materials are prepared from, by weight, 2-5 parts of wall materials; 1-3 parts of an essence core material; 0.05 to 0.1 part of propylene glycol; 9-15 parts of an ethanol solution; 0.01 to 0.03 part of an emulsifier; 0.4 to 0.6 part of mussel mucoprotein; 0.8 to 1.2 parts of bamboo pulp nano cellulose; the preparation method comprises the following steps: uniformly mixing the essence core material and the propylene glycol, then adding an ethanol solution, the wall material and the emulsifier, mixing and homogenizing, then adding the mussel mucin and the bamboo pulp nano cellulose, mixing, freeze-drying, crushing and sieving to obtain the microcapsule essence material; and dispersing the microcapsule essence material in water, coating a cigarette paper substrate with the microcapsule essence material, and drying the cigarette paper substrate to obtain the cigarette paper. When the fragrance paper matched with the cigarette is affected by vibration, a large microcapsule essence loss rate is not prone to occurring, release of fragrance components in the processing and storage process can be avoided, and the fragrance fixing effect is excellent.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette paper processing, and more specifically, to a cigarette flavor paper and a preparation method thereof. Background Art

[0002] Cigarette paper is a special paper used for rolling cigarettes. It is made of natural fibers such as hemp pulp or wood pulp, and fillers such as calcium carbonate. A small amount of additives are also added. It is generally white in appearance. There are several types of cigarette papers, such as straight rib cigarette paper, horizontal rib cigarette paper and special rib cigarette paper. It has the characteristics of low transparency, good flammability, high tensile strength, gray-white color after burning and adhesion.

[0003] The use of flavors on cigarette paper can not only enhance the aroma of cigarettes, increase smoke concentration, improve taste, remove and cover up miscellaneous odors, and reduce irritation, but also give the product a certain characteristic aroma, highlighting the personalized style of cigarette products, and plays an important role in cigarette production. Because there are many types of tobacco flavors, and many flavor components are highly volatile, some flavors are easily oxidized or easily decomposed by light and heat, which leads to flavor distortion during manufacturing and storage of cigarettes, and the application quality is greatly reduced. In order to avoid the loss or volatilization of tobacco flavors, flavors and fragrances are usually microencapsulated and enclosed in tiny capsules formed by polymer materials, which can provide good protection and sustained release of flavors and fragrances, thereby greatly improving stability.

[0004] For example, the invention patent with the patent publication number CN113123171A discloses a method for preparing milk-flavored cigarette paper, which includes adding a set amount of modified starch to distilled water and stirring to obtain a modified starch solution, then adding maltodextrin while stirring, and continuing to shear and stir until a uniformly dispersed maltodextrin emulsion is formed; adding tobacco flavors to the maltodextrin emulsion and stirring to obtain an oil-in-water emulsion; drying the prepared oil-in-water emulsion through a spray dryer to obtain tobacco flavor microcapsules; spraying the microcapsules on cigarette paper or adding the microcapsules to pulp to obtain milk-flavored cigarette paper. This technical solution uses an embedding technology to microencapsulate the flavors and then coats them on cigarette paper. The cigarette paper prepared by this method can avoid the loss of flavor components during processing and storage, and does not affect the sensory quality of cigarettes.

[0005] With regard to the above-mentioned related technologies, the inventors believe that tobacco flavor microcapsules are coated on cigarette paper by spraying. Although the operation is relatively simple and convenient, after the tobacco flavor microcapsules attached to the cigarette paper are dried, they are easily affected by vibration or friction during operation and fall off, thereby causing the loss of tobacco flavor microcapsules. In addition, the microcapsules do not have an excellent flavor-fixing effect, and the flavor is easily released during the storage stage. When the cigarette is smoked, the sensory quality of the flavor will be significantly reduced.

[0006] Therefore, it is urgent to propose a solution to solve the above technical problems. Summary of the invention

[0007] In order to reduce the loss rate of tobacco flavor microcapsules when affected by vibration, improve the bonding stability between tobacco flavor microcapsules and cigarette paper, and exert excellent flavor fixing effect, the present application provides a flavor paper for cigarettes and a preparation method thereof.

[0008] In the first aspect, the present application provides a flavor paper for cigarettes, which adopts the following technical solution:

[0009] A flavor paper for cigarettes, comprising a cigarette paper substrate and a microcapsule flavor material, wherein the microcapsule flavor material is made of the following raw materials in parts by weight:

[0010] 2-5 parts of wall material;

[0011] 1-3 parts of flavor core material;

[0012] Propylene glycol 0.05-0.1 part;

[0013] 9-15 parts of ethanol solution;

[0014] Emulsifier 0.01-0.03 parts;

[0015] Mussel mucin 0.4-0.6 parts;

[0016] 0.8-1.2 parts of bamboo pulp nanocellulose.

[0017] By adopting the above technical scheme, the wall material and the flavor core material constitute the main structure of the microcapsule flavor material. Propylene glycol can adjust the diffusion rate and volatility characteristics of the flavor components, so that the release of the aroma remains uniform and lasting. The ethanol solution can fully mix the raw materials so that the microcapsule flavor material can be stably formed. The use of emulsifiers can significantly improve the stability and sustained-release performance of the microcapsule flavor material. Mussel mucin has excellent paper-based affinity, and the foot threads formed after oxidation form a very strong bond with the cigarette paper matrix, thereby enabling the capsule wall of the microcapsule flavor material to form a relatively strong interface bond with the cigarette paper matrix. Bamboo pulp nanocellulose has excellent structural toughness. It acts as a buffer skeleton in the microcapsule flavor material. When affected by vibration, it can play the role of absorbing and dissipating energy, making it difficult for the microcapsule flavor material to fall off from the cigarette paper matrix. At the same time, the combination of mussel mucin and bamboo pulp nanocellulose can play an excellent compound synergistic role. Through the modification of bamboo pulp nanocellulose surface by mussel mucin, bamboo pulp nanocellulose can directly act on the interface between microcapsule flavoring material and cigarette paper matrix, quickly and effectively adjust the vibration effect, and can also form a membrane network structure composed of mussel mucin and bamboo pulp nanocellulose in the microcapsule flavoring material through the excellent film-forming property brought by mussel mucin, bringing excellent anti-seismic and anti-damage effects, thereby significantly reducing the loss rate of microcapsule flavoring material when it is affected by vibration, increasing the retention rate or adhesion rate of microcapsule flavoring material on paper, and improving the bonding stability between microcapsule flavoring material and cigarette paper matrix, so as to avoid the release of flavor components during processing and storage, so that the final cigarette matching flavor paper shows excellent application stability. Moreover, the membrane network structure composed of mussel mucin and bamboo pulp nanocellulose can also effectively reduce the release of fragrance and bring about a significant improvement in the fragrance fixation effect.

[0018] Preferably, the weight ratio of the mussel mucin to the bamboo pulp nanocellulose is 1:2.

[0019] By adopting the above technical scheme, when the mussel mucin and bamboo pulp nanocellulose in the above proportion are used in combination, the coordination structure formed between them is relatively uniform, and the anti-seismic adjustment effect is better, so that the bonding stability between the microcapsule flavor material and the cigarette paper matrix is ​​better, thereby obtaining a flavor paper for cigarettes with relatively excellent application quality.

[0020] Preferably, the cigarette paper substrate is subjected to surface modification treatment before being combined with the microcapsule flavor material, comprising the following steps:

[0021] S1. Prepare a modifying agent, wherein sodium hexametaphosphate, 1,3-butanediol and pullulan are mixed in a weight ratio of 1:(1.5-1.8):(3-5) to form a modifying agent, and the modifying agent is mixed with deionized water to prepare a modifying agent with a concentration of 5-8%;

[0022] S2, spraying the modified treatment agent, the obtained modified treatment agent is 3-5g / m 2 Spray the amount on the surface of the cigarette paper substrate and let it stand for 5-10 minutes to complete the surface modification treatment.

[0023] By adopting the above technical solution, the surface of the cigarette paper substrate is modified so that the fiber structure on the surface of the cigarette paper substrate becomes loose and discrete. In the subsequent process of combining with the microcapsule flavor material, the microcapsule flavor material can be embedded into the cigarette paper substrate, thereby forming a stronger combination. In the modification operation, modifiers composed of sodium hexametaphosphate, 1,3-butanediol and pullulan are mainly used. Among them, sodium hexametaphosphate can effectively prevent the aggregation of cigarette paper matrix fibers and promote the good dispersion of cigarette paper matrix fibers. 1,3-butanediol can soften the fibers in the cigarette paper matrix. The two play a major role in the loosening and dispersion of the cigarette paper matrix fibers. Pullulan can combine with the cigarette paper matrix fibers in this process, and use its own film-forming and viscosity to not only shape the loose and discrete cigarette paper matrix fibers, but also can significantly affinity bind with mussel mucin to form a viscous complex, thereby enabling it to form a more stable chimeric structure with the cigarette paper matrix, which can significantly reduce the loss rate of microcapsule flavoring materials when affected by vibration and improve the bonding stability between microcapsule flavoring materials and cigarette paper.

[0024] Preferably, in step S1, the weight ratio of sodium hexametaphosphate, 1,3-butanediol and pullulan is 1:1.7:3.5; in step S2, the spraying amount of the modifying agent is 3.5 g / m 2 .

[0025] By adopting the above technical scheme, the modifier composed of sodium hexametaphosphate, 1,3-butanediol and pullulan in the above proportion, and the spraying amount of the above modifying agent, the modifier can bring better modification effect to the cigarette paper matrix, and the bonding stability between the microcapsule flavoring material and the cigarette paper matrix can be better improved.

[0026] Preferably, the particle size of the microcapsule flavor material is 3-10 μm, and the amount thereof is 0.5-2% of the weight of the cigarette paper substrate.

[0027] By adopting the above technical scheme, the microcapsule flavor material of the above particle size can be uniformly and stably adhered to the cigarette paper substrate. If the particle size of the microcapsule flavor material is small, it is easy to agglomerate. If the particle size of the microcapsule flavor material is large, it is difficult to effectively control it when affected by vibration. At the same time, controlling the amount of the above microcapsule flavor material on the cigarette paper substrate can not only meet the application requirements, but also avoid the high loss rate of the microcapsule flavor material due to vibration to the greatest extent. Therefore, the above selection can maintain an excellent and stable combination between the microcapsule flavor material and the cigarette paper, and the obtained flavor paper for cigarettes also has better application quality.

[0028] Preferably, the wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of (1-3):(0.5-1):1.

[0029] By adopting the above technical scheme, sodium alginate has good biocompatibility and biodegradability, and the formed wall material structure is stable; chitosan not only has good biocompatibility and safety, but also can form a wall material structure with excellent toughness; gelatin has excellent film-forming property and viscosity, and can provide good coating effect; and when sodium alginate, chitosan and gelatin are used as wall materials according to the above weight ratio range, the mixed system formed can not only play the above-mentioned role, but also show excellent compatibility with the combination of mussel mucin and bamboo pulp nanocellulose, thereby ensuring the excellent performance of the compounding effect of mussel mucin and bamboo pulp nanocellulose, so that the microcapsule flavor material and the cigarette paper maintain an excellent and stable combination.

[0030] Preferably, the wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of 2.5:0.8:1.

[0031] By adopting the above technical solution, when sodium alginate, chitosan and gelatin in the above weight ratio are used in combination, the mixed system formed therebetween can bring about better corresponding effects, so that the bonding stability between the microcapsule flavoring material and the cigarette paper is relatively excellent.

[0032] Preferably, the flavor core material is one or a combination of aliphatic, aromatic, terpenoid chemicals and heterocyclic compounds.

[0033] By adopting the above technical solution, the above types of flavor core materials are all suitable for the preparation of microcapsule flavor materials and can be selected and combined according to actual needs.

[0034] Preferably, the emulsifier is one or a combination of several of soybean lecithin, fatty acid glyceride, sucrose ester, sodium and calcium stearoyl lactylate, xylitol ester and mannitol ester.

[0035] By adopting the above technical scheme, the above types of emulsifiers can fully combine with other raw materials and play a role in stabilizing themselves, and in the microcapsule molding process, other raw materials can fully cooperate and play a role to form a stable structure, thereby obtaining high-quality microcapsule flavor materials.

[0036] In a second aspect, the present application provides a method for preparing a flavor paper for cigarettes, which adopts the following technical solution:

[0037] A method for preparing flavor paper for cigarettes comprises the following steps:

[0038] (1) preparing raw materials including wall material, flavor core material, propylene glycol, ethanol solution, emulsifier, mussel mucin and bamboo pulp nanocellulose according to a ratio;

[0039] (2) After the flavor core material and propylene glycol in step (1) are uniformly mixed, an ethanol solution, a wall material and an emulsifier are added and mixed uniformly, and then mussel mucin and bamboo pulp nanocellulose are added and mixed, and then freeze-dried, crushed and sieved to obtain a microcapsule flavor material;

[0040] (3) Dispersing the microcapsule flavor material obtained in step (2) in water, coating it on a cigarette paper substrate by spraying, and drying to obtain a flavor paper for cigarettes.

[0041] By adopting the above technical solution, the above preparation method is simple to operate and convenient for large-scale industrial production. In the process, the raw materials are mixed and used in order, which is convenient for quality control in the production process, so that the raw materials can fully play their role, and then obtain the high-quality flavor paper for cigarettes. At the same time, after the microcapsule flavor material is prepared, it is coated on the cigarette paper substrate by spraying, that is, the microcapsule flavor material and the cigarette paper can be stably combined, which is not only efficient, but also has a broader application prospect.

[0042] In summary, this application has the following beneficial effects:

[0043] 1. The present application uses mussel mucin and bamboo pulp nanocellulose in the preparation of microcapsule flavoring materials, and the membrane network structure formed by the compounding of mussel mucin and bamboo pulp nanocellulose directly acts on the interface of the microcapsule flavoring materials and the cigarette paper matrix, bringing excellent anti-seismic and anti-damage effects, thereby significantly reducing the loss rate of the microcapsule flavoring materials when affected by vibration, increasing the retention rate or adhesion rate of the microcapsule flavoring materials on the paper, and improving the bonding stability between the microcapsule flavoring materials and the cigarette paper matrix, thereby avoiding the release of flavor components during processing and storage, so that the final cigarette matching flavor paper shows excellent application stability. Moreover, the membrane network structure composed of mussel mucin and bamboo pulp nanocellulose can also effectively reduce the release of fragrance and bring about a significant improvement in the fragrance fixation effect.

[0044] 2. The present application further modifies the surface of the cigarette paper substrate so that the fiber structure on the surface of the cigarette paper substrate becomes loose and discrete. In the subsequent process of combining with the microcapsule flavor material, the microcapsule flavor material can be embedded into the cigarette paper substrate. By forming a more stable embedded structure, the loss rate of the microcapsule flavor material when it is affected by vibration can be significantly reduced, and the bonding stability between the microcapsule flavor material and the cigarette paper can be improved, thereby obtaining a more stable flavor paper for cigarettes. DETAILED DESCRIPTION

[0045] The present application is further described in detail below in conjunction with embodiments and comparative examples.

[0046] Unless otherwise specified, the raw materials used in the embodiments and comparative examples of the present application are commercially available:

[0047] The cigarette paper substrate was purchased from Tiger brand hand-rolled cigarette paper, with a thickness of 0.03 mm;

[0048] Mussel mucin was purchased from Guangdong Wengjiang Chemical Reagent Co., Ltd., with the product number PA92899-100g;

[0049] The bamboo pulp nanocellulose is 160nm long and 10nm in diameter;

[0050] The ethanol solution is selected as 95% ethanol solution;

[0051] Pullulan was purchased from Wuhan Jiyesheng Chemical Co., Ltd., model JYS15451;

[0052] Chitosan was purchased from Xi'an Tongze Biotechnology Co., Ltd., with the catalog number tz-jkz01;

[0053] Gelatin was purchased from Piaolait (Tianjin) New Material Technology Co., Ltd. with the brand name BH1688.

[0054] Example

[0055] Example 1

[0056] A flavor paper for cigarettes includes a cigarette paper substrate and a microcapsule flavor material. The weight of the raw materials used to prepare the microcapsule flavor material is shown in Table 1, and the microcapsule flavor material is prepared by the following steps:

[0057] (1) preparing raw materials including wall material, flavor core material, propylene glycol, ethanol solution, emulsifier, mussel mucin and bamboo pulp nanocellulose according to a ratio;

[0058] (2) After the flavor core material and propylene glycol in step (1) are uniformly mixed, the mixture is stirred at 300 r / min for 5 min, and then the ethanol solution, wall material and emulsifier are added and mixed, and the mixture is stirred at 500 r / min for 10 min, and then mussel mucin and bamboo pulp nanocellulose are added and mixed, and the mixture is homogenized at 5000 r / min for 8 min, and the homogenization pressure is 40 MPa. After freeze drying, crushing and sieving, the mixture is frozen at -40°C for 30 min, and dried at a vacuum degree of 50 MPa and a temperature of 60°C for 10 h to obtain a microcapsule flavor material;

[0059] (3) The microcapsule flavor material obtained in step (2) is dispersed in warm water at 55° C. at a weight ratio of 8%, and coated on a cigarette paper substrate by spraying. After drying at 60° C., a flavor paper for cigarettes is obtained.

[0060] Note: In the above operation, the wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of 2.5:0.8:1; the flavor core material is composed of γ-butyrolactone and vanillin in a weight ratio of 1:1; the emulsifier is soybean lecithin; the particle size of the microcapsule flavor material is 6.5μm, and its dosage is 1.25% of the weight of the cigarette paper substrate.

[0061] Example 2-3

[0062] A flavor paper for cigarettes, which is different from Example 1 in that the weights of raw materials used in preparing the microcapsule flavor material are as shown in Table 1.

[0063] Table 1 Raw materials used in the preparation of microcapsule flavor materials in Examples 1-3 and their corresponding weights (kg / portion)

[0064]

[0065]

[0066] Example 4

[0067] A flavor paper for cigarettes, which is different from Example 1 in that the wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of 2:0.75:1.

[0068] Example 5

[0069] A flavor paper for cigarettes, which is different from Example 1 in that the wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of 1:0.5:1.

[0070] Example 6

[0071] A flavor paper for cigarettes, which is different from Example 1 in that the wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of 3:1:1.

[0072] Example 7

[0073] A flavor paper for cigarettes, which is different from Example 1 in that the particle size of the microcapsule flavor material is 3 μm.

[0074] Example 8

[0075] A flavor paper for cigarettes, which is different from Example 1 in that the particle size of the microcapsule flavor material is 10 μm.

[0076] Example 9

[0077] A flavor paper for cigarettes, which is different from Example 1 in that the particle size of the microcapsule flavor material is 2.5 μm.

[0078] Example 10

[0079] A flavor paper for cigarettes, which is different from Example 1 in that the particle size of the microcapsule flavor material is 10.5 μm.

[0080] Embodiment 11

[0081] A flavor paper for cigarettes, which is different from Example 1 in that the amount of microcapsule flavor material used is 0.5% of the weight of the cigarette paper base.

[0082] Example 12

[0083] A flavor paper for cigarettes, which is different from Example 1 in that the amount of microcapsule flavor material used is 2% of the weight of the cigarette paper base.

[0084] Embodiment 13

[0085] A flavor paper for cigarettes, which is different from Example 1 in that the cigarette paper substrate is subjected to surface modification treatment before being combined with the microcapsule flavor material, comprising the following steps:

[0086] S1. Prepare a modifying agent, wherein sodium hexametaphosphate, 1,3-butanediol and pullulan are mixed in a weight ratio of 1:1.7:3.5 to form a modifying agent, and the modifying agent is mixed with deionized water to prepare a modifying agent with a concentration of 5-8%;

[0087] S2, spraying the modified treatment agent, the obtained modified treatment agent is 3.5g / m 2 Spray the amount on the surface of the cigarette paper substrate and let it stand for 5-10 minutes to complete the surface modification treatment.

[0088] Note: In the above steps, the concentration of the modifying agent in S1 is 6.5%, and S1 is left to stand for 7.5 minutes.

[0089] Embodiment 14

[0090] A flavor paper for cigarettes, which is different from Example 13 in that, in step S1, the weight ratio of sodium hexametaphosphate, 1,3-butanediol and pullulan is 1:1.65:4.

[0091] Embodiment 15

[0092] A flavor paper for cigarettes, which is different from Example 13 in that, in step S1, the weight ratio of sodium hexametaphosphate, 1,3-butanediol and pullulan is 1:1.5:3.

[0093] Example 16

[0094] A flavor paper for cigarettes, which is different from Example 13 in that, in step S1, the weight ratio of sodium hexametaphosphate, 1,3-butanediol and pullulan is 1:1.8:5.

[0095] Embodiment 17

[0096] A flavor paper for cigarettes, which is different from Example 13 in that in step S2, the spraying amount of the modifying agent is 4 g / m 2 .

[0097] Embodiment 18

[0098] A flavor paper for cigarettes, which is different from Example 13 in that in step S2, the spraying amount of the modifying agent is 3 g / m 2 .

[0099] Embodiment 19

[0100] A flavor paper for cigarettes, which is different from Example 13 in that in step S2, the spraying amount of the modifying agent is 5 g / m 2 .

[0101] Embodiment 20

[0102] A flavor paper for cigarettes, which is different from Example 13 in that sodium hexametaphosphate and pullulan are not used in the modifier.

[0103] Embodiment 21

[0104] A flavor paper for cigarettes, which is different from Example 13 in that 1,3-butanediol and pullulan are not used in the modifier.

[0105] Embodiment 22

[0106] A flavor paper for cigarettes, which is different from Example 13 in that sodium hexametaphosphate and 1,3-butanediol are not used in the modifier.

[0107] Embodiment 23

[0108] A flavor paper for cigarettes, which is different from Example 13 in that sodium hexametaphosphate is not used in the modifier.

[0109] Embodiment 24

[0110] A flavor paper for cigarettes, which is different from Example 13 in that 1,3-butanediol is not used in the modifier.

[0111] Embodiment 25

[0112] A flavor paper for cigarettes, which is different from Example 13 in that pullulan is not used in the modifier.

[0113] Comparative Example

[0114] Comparative Example 1

[0115] A flavor paper for cigarettes, which is different from Example 1 in that bamboo pulp nanocellulose is not used in the raw materials of microcapsule flavoring materials.

[0116] Comparative Example 2

[0117] A flavor paper for cigarettes, which is different from Example 1 in that mussel mucin is not used in the raw materials of microcapsule flavoring materials.

[0118] Comparative Example 3

[0119] A flavor paper for cigarettes, which is different from Example 1 in that mussel mucin and bamboo pulp nanocellulose are not used in the raw materials of microcapsule flavoring materials.

[0120] Performance testing

[0121] Test samples: The flavor papers for cigarettes obtained in Examples 1-25 were used as test samples 1-25, and the flavor papers for cigarettes obtained in Comparative Examples 1-3 were used as control samples 1-3.

[0122] Test method 1: Take the flavor paper for cigarettes, cut a piece of 20cm×10cm into a size and weigh it, and the initial weight is recorded as G0; then place the flavor paper for cigarettes on an oscillation table, with a control fence to prevent it from falling from the table during the oscillation process, so that the center of the sample can move unconstrained within a range of 10mm in each horizontal direction, and the vibration frequency is 50Hz. After completing 180min of random oscillation, weigh the flavor paper for cigarettes, and the weight is recorded as G1; then calculate the loss of microcapsule flavor material, microcapsule flavor material loss = G0-G1; finally calculate the loss rate of microcapsule flavor material, microcapsule flavor material loss rate = microcapsule flavor material loss / microcapsule flavor material adhesion, where the microcapsule flavor material adhesion is obtained by subtracting the cigarette paper substrate from the initial weight of the flavor paper for cigarettes.

[0123] The greater the loss rate of the microcapsule flavor material, the worse the bonding stability between the microcapsule flavor material and the cigarette paper matrix; after completing the test samples 1-25 and the control samples 1-3 in sequence according to the above method, the test results are recorded in the following Table 2.

[0124] Table 2 Test results of test samples 1-25 and control samples 1-3

[0125]

[0126]

[0127] Combining Examples 1-3 and Comparative Examples 1-3 and Table 2, it can be seen that by using mussel mucin and bamboo pulp nanocellulose in the preparation of microcapsule flavoring materials, the bonding stability between the microcapsule flavoring materials and the cigarette paper matrix can be significantly improved, and the obtained cigarette matching flavoring paper can be tested, and the loss rate of the microcapsule flavoring materials under vibration is significantly lower. If only any one of mussel mucin and bamboo pulp nanocellulose is used in the preparation of microcapsule flavoring materials, although the anti-seismic stability after bonding with the cigarette paper matrix is ​​improved compared with the microcapsule flavoring materials without mussel mucin and bamboo pulp nanocellulose, the improvement effect is effective, and the sum of the improvement effects brought by the use of each is far less than the excellent compounding of the two. It can be seen that mussel mucin and bamboo pulp nanocellulose can play an excellent compounding and synergistic role in microcapsule flavoring materials, so that the finally obtained cigarette matching flavoring paper shows excellent application stability.

[0128] It can be seen from Example 1 and Examples 4-6 and Table 2 that the use of a wall material composed of sodium alginate, chitosan and gelatin in a weight ratio of (1-3): (0.5-1): 1 can ensure that the obtained microcapsule flavor material maintains excellent and stable bonding with the cigarette paper, and the coordination effect between mussel mucin and bamboo pulp nanocellulose can be excellent; among them, when the weight ratio of sodium alginate, chitosan and gelatin is 2.5:0.8:1, the bonding stability between the microcapsule flavor material and the cigarette paper is relatively excellent, and the loss rate of the microcapsule flavor material obtained by the above test is low.

[0129] Combining Example 1 and Example 7-10 with Table 2, it can be seen that when the particle size of the microcapsule flavor material is 3-10 μm, it can be stably adhered to the cigarette paper substrate; if the particle size of the microcapsule flavor material is small, it is easy to agglomerate; if the particle size of the microcapsule flavor material is large, it is difficult to effectively control when affected by vibration, which will lead to a significant increase in the loss rate of the microcapsule flavor material. Combining Example 11-12 with Table 2, it can be seen that when the amount of the microcapsule flavor material is 0.5-2% of the weight of the cigarette paper substrate, the microcapsule flavor material can also maintain excellent and stable bonding with the cigarette paper, and obtain a stable application of the cigarette matching flavor paper.

[0130] Combining Example 1 and Example 13 with Table 2, it can be seen that the surface modification treatment of the cigarette paper substrate before combining with the microcapsule flavor material can form a more stable combination between the microcapsule flavor material and the cigarette paper substrate, and can significantly reduce the loss rate of the microcapsule flavor material when it is affected by vibration. Combining Examples 14-19 with Table 2, it can be seen that in the modification treatment operation, the weight ratio of sodium hexametaphosphate, 1,3-butanediol and pullulan is 1:1.7:3.5, and the spraying amount of the modification agent is 3.5g / m 2 , which can bring better modification treatment effect to the cigarette paper matrix, and make the combination stability between the microcapsule flavor material and the cigarette paper better. Combined with Examples 20-25 and Table 2, it can be seen that the use of any one or two of sodium hexametaphosphate, 1,3-butanediol and pullulan as modifiers has limited effect on improving the combination stability between the microcapsule flavor material and the cigarette paper, and the effects between them are only simply superimposed. Only when the three raw materials are used as modifiers can a significant improvement effect of 1+1>2 be brought about, and the loss rate of the microcapsule flavor material obtained by the above test for the flavor paper for cigarette matching is also significantly reduced.

[0131] Test method 2: Take the microcapsule flavor material used in test sample 1, accelerate the release rate of mint aroma through artificial drying, monitor the changes in quality at different time periods to study the sustained release effect of mint flavor microcapsules, and use at least 3 parallel samples to calculate the average value. The specific results are shown in Table 3.

[0132] Table 3 Change rate of sustained release effect of microencapsulated products at different times

[0133]

[0134]

[0135] As shown in Table 2, after the microcapsule product was artificially dried to accelerate volatilization, the quality of the microcapsule product decreased rapidly in the first 21 hours, and it was estimated that it reached the lowest point at 25 to 28 hours. After 30 hours, the quality tended to be stable, but a faint aroma was still released. From the above data, it can be concluded that the aroma retention rate of the microencapsulated product is high, the volatilization rate is slow, it has good sustained-release performance, and excellent aroma fixation effect.

[0136] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A flavor paper for cigarettes, characterized in that: It comprises a cigarette paper substrate and a microcapsule flavor material, wherein the microcapsule flavor material is made of the following raw materials in parts by weight: 2-5 parts of wall material; 1-3 parts of flavor core material; Propylene glycol 0.05-0.1 part; 9-15 parts of ethanol solution; Emulsifier 0.01-0.03 parts; Mussel mucin 0.4-0.6 parts; 0.8-1.2 parts of bamboo pulp nanocellulose.

2. The flavor paper for cigarettes according to claim 1, characterized in that: The weight ratio of the mussel mucin to the bamboo pulp nanocellulose is 1:

2.

3. The flavor paper for cigarettes according to claim 1, characterized in that: The cigarette paper substrate is subjected to surface modification treatment before being combined with the microcapsule flavor material, comprising the following steps: S1. Prepare a modifying agent, wherein sodium hexametaphosphate, 1,3-butanediol and pullulan are mixed in a weight ratio of 1:(1.5-1.8):(3-5) to form a modifying agent, and the modifying agent is mixed with deionized water to prepare a modifying agent with a concentration of 5-8%; S2, spraying the modified treatment agent, the obtained modified treatment agent is 3-5g / m 2 Spray the amount on the surface of the cigarette paper substrate and let it stand for 5-10 minutes to complete the surface modification treatment.

4. The flavor paper for cigarettes according to claim 3, characterized in that: In step S1, the weight ratio of sodium hexametaphosphate, 1,3-butanediol and pullulan is 1:1.7:3.5; in step S2, the spraying amount of the modifying agent is 3.5 g / m 2 .

5. The flavor paper for cigarettes according to claim 1, characterized in that: The particle size of the microcapsule flavor material is 3-10 μm, and the amount thereof is 0.5-2% of the weight of the cigarette paper substrate.

6. The flavor paper for cigarettes according to claim 1, characterized in that: The wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of (1-3):(0.5-1):

1.

7. The flavor paper for cigarettes according to claim 6, characterized in that: The wall material is composed of sodium alginate, chitosan and gelatin in a weight ratio of 2.5:0.8:

1.

8. The flavor paper for cigarettes according to claim 1, characterized in that: The essence core material is one or a combination of aliphatic, aromatic, terpenoid chemical substances and heterocyclic compounds.

9. The flavor paper for cigarettes according to claim 1, characterized in that: The emulsifier is one or a combination of several of soybean lecithin, fatty acid glyceride, sucrose ester, sodium and calcium stearoyl lactylate, xylitol ester and mannitol ester.

10. The method for preparing the flavor paper for cigarettes according to claim 1, characterized in that: The following steps are involved: (1) preparing raw materials including wall material, flavor core material, propylene glycol, ethanol solution, emulsifier, mussel mucin and bamboo pulp nanocellulose according to a ratio; (2) After the flavor core material and propylene glycol in step (1) are uniformly mixed, an ethanol solution, a wall material and an emulsifier are added and mixed uniformly, and then mussel mucin and bamboo pulp nanocellulose are added and mixed, and then freeze-dried, crushed and sieved to obtain a microcapsule flavor material; (3) Dispersing the microcapsule flavor material obtained in step (2) in water, coating it on a cigarette paper substrate by spraying, and drying to obtain a flavor paper for cigarettes.

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