Heat-not-burn cigarette with water-containing capsule cooling section

Abstract

The present invention relates to a heat-not-burn cigarette having a water-capsule cooling section. The cigarette comprises a smoking section (1), a water-capsule cooling section (2), and a filtering section (3) connected in sequence. The water-capsule cooling section (2) is composed of a water capsule (2-1) and a porous polymer material wrapping the water capsule (2-1). When a person smokes the cigarette and pops the water capsule (2-1), the water in the water capsule (2-1) is evenly dispersed in the water-capsule cooling section (2). Due to the large specific heat capacity of water, it exchanges heat with smoke, significantly reducing the smoke temperature, thereby also cooling the water-capsule cooling section (2). In this way, the cooling section material can be prevented from collapsing, and the cigarette draw resistance can be kept constant.

Description

Technical field

[0001] The present invention belongs to the technical field of tobacco processing, and more specifically, relates to a heat-not-burn cigarette having a water-capsule cooling section. [Background Technology]

[0002] Heat-not-burn cigarettes are a type of cigarette that uses electronic devices to heat tobacco rather than burn it. They produce no open flame or ash during the smoking process, making them environmentally friendly. They allow consumers to enjoy the aroma of tobacco while smoking through electronic heating devices, while also reducing the production of harmful substances from the high-temperature pyrolysis of conventional cigarettes. This provides an effective way for consumers to smoke healthily. This smoking method is becoming increasingly popular both at home and abroad, and has formed a sizeable consumer group.

[0003] Compared with traditional cigarettes, heat-not-burn tobacco products allow consumers to inhale the aroma of tobacco while reducing the harmful smoke components that are cracked and distilled during the combustion process of conventional cigarettes. They are heated by carbon or electric heating at 200-400°C to prevent the tobacco material from burning, and produce smoke through low-temperature cracking. Due to the shorter structure of the cigarette, the smoke temperature is still between 50-100°C after filtration, which is higher than the smoke temperature of traditional cigarettes and has a warm feeling.

[0004] Heat-not-burn tobacco products were first developed by major international tobacco companies such as Philip Morris, Reynolds, British American, and Japan Tobacco. In particular, intellectual property rights were deployed for heat-not-burn cigarettes. The cigarette cartridge structure described in US20140305448A1 is a four-component composite. The cooling structure in the cigarette structure is a gathered membrane material that absorbs the heat of the smoke to reduce the smoke temperature and improve the comfort of smoking. However, the effect is not very ideal. The cooling section collapses, increasing the draw resistance of the cigarette, reducing the smoke concentration, making the smoke dry, and affecting the overall smoking taste. Lowering the smoke temperature and maintaining the smoke concentration is a key technology for heat-not-burn tobacco products. In addition, existing heat-not-burn cigarettes use a four-component composite structure, generally consisting of a smoking section, a support section, a cooling section, and a filter section. The cooling section uses a polylactic acid film, and the filter section uses an acetate filter rod. The production process of this four-component composite heat-not-burn cigarette is relatively complex and it is difficult to effectively reduce the temperature of the smoke entering the mouth.

[0005] Therefore, in view of the many technical defects of the prior art, the inventors conducted a large number of experiments and analyses by using heat-not-burn cigarettes containing water capsules, and finally completed the present invention. [Summary of the invention]

[0006] [Technical problems to be solved]

[0007] The purpose of the present invention is to provide a heat-not-burn cigarette with a water-containing capsule cooling section.

[0008] [Technical solution]

[0009] The present invention is achieved through the following technical solutions.

[0010] The invention relates to a heat-not-burn cigarette with a water-capsule cooling section.

[0011] The heat-not-burn cigarette is formed by sequentially connecting a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3; the water-containing capsule cooling section 2 is composed of a water capsule 2-1 and a porous polymer material wrapping the water capsule 2-1.

[0012] According to a preferred embodiment of the present invention, the smoking segment 1 is made of tobacco leaves, reconstituted tobacco leaves, cut stems, plant raw material powder or particles; the particle size of the raw material powder is 100-200 mesh; the diameter of the raw material particles is 0.1-0.4 mm.

[0013] According to another preferred embodiment of the present invention, the reconstituted tobacco leaf is a papermaking sheet, a dry-process sheet, a thick pulp sheet or a roller-pressed sheet.

[0014] According to another preferred embodiment of the present invention, the water capsule 2-1 is composed of a core liquid of water or an aqueous essence aqueous solution and a hydrophobic resin shell that wraps the core liquid.

[0015] According to another preferred embodiment of the present invention, the aqueous flavor is an aqueous flavor selected from mint flavor, floral flavor or fruit flavor; and the hydrophobic resin is polyethylene, polystyrene, polystyrene or polycarbonate.

[0016] According to another preferred embodiment of the present invention, 1 to 3 water capsules 2 - 1 with a diameter of 0.05 to 5.00 mm are embedded in the water-containing capsule cooling section 2 .

[0017] According to another preferred embodiment of the present invention, the water vapor permeability of the water capsule 2-1 is 0.01-0.03 mg / d; and the bursting pressure is 0.7-2.0 kg.f.

[0018] According to another preferred embodiment of the present invention, the polymer material is polylactic acid, fiber paper, acetate fiber or polypropylene fiber gathered film material or silk material.

[0019] According to another preferred embodiment of the present invention, the porosity of the polymer material is 35-85%.

[0020] According to another preferred embodiment of the present invention, the filter segment 3 is made of polymer material filaments such as polylactic acid, acetate fiber, polypropylene fiber or polyester fiber.

[0021] The present invention will be described in more detail below.

[0022] The invention relates to a heat-not-burn cigarette with a water-capsule cooling section.

[0023] The heat-not-burn cigarette is formed by sequentially connecting a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3; the water-containing capsule cooling section 2 is composed of a water capsule 2-1 and a porous polymer material wrapping the water capsule 2-1.

[0024] According to the present invention, the smoking segment 1 is made of tobacco leaves, reconstituted tobacco leaves, shredded tobacco stems, plant material powder or granules. People can choose different raw materials as smoking materials according to their different tastes. The tobacco leaves, reconstituted tobacco leaves and shredded tobacco stems used in the present invention are all products commonly used in the prior art and sold on the market. The plant raw materials used in the present invention are, for example, black plum leaves, Longjing tea leaves or perilla leaves. Black plum is the dried nearly mature fruit of the Rosaceae plant Prunus mume (Sieb.) Sieb.et Zuce, and black plum leaves are the leaves of black plum. The black plum leaves used in the present invention are obtained by shade drying. Perilla Perilla frutescens (L.) Britt. is an annual herbaceous plant of the Lamiaceae family, and perilla leaves are the leaves of perilla. The perilla leaves used in the present invention are products currently sold on the market, such as the products sold by Shaanxi Chuanjiu Biotechnology Co., Ltd. under the trade name Perilla Leaves. The Longjing tea leaves used in the present invention are products currently sold on the market.

[0025] Of course, the present invention can also use other tobacco raw materials or natural plant raw materials, but the products made from them should fully comply with the relevant national standards and have no negative impact on the heat-not-burn cigarettes. These tobacco raw materials or natural plant raw materials are also within the scope of protection of the present invention.

[0026] According to the present invention, the particle size of the raw material powder is 100-200 mesh, the diameter of the raw material particles is 0.1-0.4 mm, and the reconstituted tobacco leaf is a papermaking sheet, a dry sheet, a thick pulp sheet or a roller-pressed sheet.

[0027] According to the present invention, the water-capsule cooling section 2 is composed of water capsules 2-1 and a porous polymer material wrapping the water capsules 2-1.

[0028] The term "water capsule 2-1" should be understood as a capsule consisting of a core liquid of water or an aqueous flavor solution and a hydrophobic resin shell surrounding the core liquid, i.e., a capsule in which the aqueous core liquid is encapsulated by a hydrophobic resin. In the present invention, the aqueous flavor is selected from a mint flavor, a floral flavor, or a fruity flavor; and the hydrophobic resin is polyethylene, polystyrene, polystyrene, or polycarbonate, all of which are commonly used in the art and currently available on the market. The water capsule 2-1 used in the present invention is produced using the production equipment described in CN110338450A, "A Multi-Drip Head UV Light-Curing Water-Based Capsule Production Equipment," by Yunnan Bagu Biotechnology Co., Ltd. When the water capsule 2-1 is squeezed and burst, the water in the water capsule 2-1 will be evenly dispersed in the water-containing capsule cooling section 2. Due to the large specific heat capacity of water, it exchanges heat with the smoke, significantly reducing the smoke temperature, thereby also cooling the water-containing capsule cooling section 2. In this way, the collapse of the cooling section material can be avoided, and the draw resistance of the cigarette can be kept unchanged.

[0029] According to the present invention, one to three water capsules 2-1 with a diameter of 0.05 to 5.00 mm are embedded in the water-capsule cooling section 2. In the present invention, if the diameter of the water capsule 2-1 is less than 0.05 mm, the liquid content of the water capsule core is extremely small, making it difficult to feel when the capsule bursts and draws. If the diameter of the water capsule 2-1 is greater than 5.00 mm, the draw resistance of the cigarette is affected, making it difficult to draw. Therefore, a diameter of 0.05 to 5.00 mm is suitable for the water capsule 2-1.

[0030] Water or aqueous essence solutions are liquid at room temperature. The amount of water evaporated from the water capsule 2-1 varies with environmental factors such as the amount of water in the capsule, storage time, and temperature. In the present invention, the water capsule 2-1 has a moisture permeability of 0.01 to 0.03 mg / day. Based on a 20 mg water capsule, this moisture permeability allows the capsule 2-1 to last for 1.8 to 5.4 years, fully meeting the needs of cigarette smoking.

[0031] When people smoke cigarettes, they need to squeeze and burst the water capsule 2-1 in the water capsule cooling section 2. Generally speaking, the bursting pressure of cigarette capsules is 0.7-2.0 kg.f, which is the most acceptable bursting pressure for consumers.

[0032] According to the present invention, the polymer material is a film or filament material made of polylactic acid, fiber paper, acetate fiber, or polypropylene fiber. The porosity of the polymer material is 35-85%. Porosity is defined as the ratio of the pore volume to the total volume of the film or filament material after it is rolled into a cooling section. The pores in the polymer material facilitate the passage of smoke through the cooling section and serve to hold the aqueous liquid in the core after the water capsule is ruptured.

[0033] According to the present invention, if the porosity of the polymer material is lower than 35%, the draw resistance in the cooling section is large, heat is concentrated in the cooling section, and smoke thermal collapse is more likely to occur. If the porosity of the polymer material is higher than 85%, the draw resistance in the cooling section is small, the smoke concentration is reduced, and the smoking taste is affected. Therefore, a porosity of 35-85% is suitable for the polymer material.

[0034] According to the present invention, the filter section 3 is made of polymer material filaments such as polylactic acid, acetate fiber, polypropylene fiber or polyester fiber.

[0035] The mainstream smoke temperature of the water-containing capsule heat-not-burn cigarettes of the present invention was tested, and sensory evaluation was also conducted. The testing standards and testing methods are as follows:

[0036] Smoking was simulated according to the cigarette smoking model specified in the national standard YC / T29-1996. The heater used was IQOS, and a K-type thermocouple temperature detector was used to measure the temperature at the center of the middle section of the filter section of the heat-not-burn cigarette with a water-capsule cooling section of the present invention during smoking. Sensory evaluation of the cigarettes was performed according to the GB5606.4-2005 standard.

[0037] A heat-not-burn tobacco product sold by Philip Morris International under the trade name HEETS, whose cooling section is made of a polylactic acid film, was also subjected to the same test as a control sample. The test results are listed in Table 1.

[0038] [Beneficial Effects]

[0039] The beneficial effects of the present invention are:

[0040] In this invention, the water capsules in the cooling section are produced through a capsule drop-making process. The core liquid is an aqueous solution or a water-based essence that carries fragrance, unlike the oil-based capsules used on the market. After being crushed and popped in the cooling section, the water is evenly dispersed throughout the cooling section. Water, with its high specific heat capacity, exchanges heat with the flue gas, thereby lowering the temperature of the flue gas and the cooling section materials, preventing the cooling materials from collapsing and improving the puff quality and smoothness. The ternary composite heat-not-burn cigarettes of this invention have a simple structure and can be industrially produced.

Brief Description of the Drawings

[0041] Figure 1 This is a schematic structural diagram of a heat-not-burn cigarette having a water-capsule cooling section according to the present invention;

[0042] In the picture:

[0043] 1-smoking section; 2-water capsule cooling section; 3-filtration section; 2-1-water capsule. [Specific implementation method]

[0044] The present invention will be better understood through the following examples.

[0045] Example 1: Heat-not-burn cigarette with water-containing capsule cooling section of the present invention

[0046] The implementation of this embodiment is as follows:

[0047] The heat-not-burn cigarette with a water-containing capsule cooling section is composed of a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3 connected in sequence;

[0048] The smoking section 1 is made of tobacco leaf powder with a particle size of 120 meshes;

[0049] The water-capsule cooling section 2 consists of water capsules 2-1 encapsulated by a porous polylactic acid polymer membrane. The polymer has a porosity of 65%. The water capsules 2-1 consist of a liquid core encapsulated by a hydrophobic polyethylene resin shell. Two water capsules 2-1, each with a diameter of 1.0 mm, are embedded within the water-capsule cooling section 2. The water capsules 2-1 have a moisture permeability of 0.01 mg / d and a bursting pressure of 1.0 kgf.

[0050] The filter section 3 is made of polylactic acid polymer material filaments.

[0051] The smoke temperature of the heat-not-burn cigarette with a water-capsule cooling section in this embodiment was tested and sensory evaluation was performed according to the method described in the specification of this application. At the same time, the heat-not-burn tobacco product sold by Philip Morris International under the trade name HEETS, which has a polylactic acid film cooling section, was also tested as a control sample. These test results are listed in Table 1.

[0052] Example 2: Heat-not-burn cigarette with water-containing capsule cooling section of the present invention

[0053] The implementation of this embodiment is as follows:

[0054] The heat-not-burn cigarette with a water-containing capsule cooling section is composed of a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3 connected in sequence;

[0055] The smoking section 1 is made of 150 mesh papermaking thin sheet reconstituted tobacco powder;

[0056] The water-capsule cooling section 2 consists of a water capsule 2-1 encapsulated by a porous polymer material made of fiber paper and gathered filaments. The polymer material has a porosity of 55%. The water capsule 2-1 consists of a core liquid containing a mint essence aqueous solution and a polystyrene hydrophobic resin shell. Embedded within the water-capsule cooling section 2 is a 3.0 mm diameter water capsule 2-1 with a water vapor permeability of 0.02 mg / d and a bursting pressure of 0.7 kgf.

[0057] The filter section 3 is made of acetate fiber polymer material filaments.

[0058] The smoke temperature of the heat-not-burn cigarette with a water-capsule cooling section in this embodiment was tested and sensory evaluation was performed according to the method described in the specification of this application. At the same time, the heat-not-burn tobacco product sold by Philip Morris International under the trade name HEETS, which has a polylactic acid film cooling section, was also tested as a control sample. These test results are listed in Table 1.

[0059] Example 3: Heat-not-burn cigarette with water-containing capsule cooling section of the present invention

[0060] The implementation of this embodiment is as follows:

[0061] The heat-not-burn cigarette with a water-containing capsule cooling section is composed of a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3 connected in sequence;

[0062] The smoke-generating section 1 is made of 100-mesh Longjing tea plant raw material powder;

[0063] The water-capsule cooling section 2 consists of water capsules 2-1 encapsulated by a porous cellulose acetate membrane polymer material. The polymer material has a porosity of 45%. The water capsules 2-1 consist of a core liquid containing a floral essence aqueous solution and a polycarbonate hydrophobic resin shell. Two water capsules 2-1, each with a diameter of 0.05 mm, are embedded in the water-capsule cooling section 2. The water vapor permeability of the water capsules 2-1 is 0.03 mg / d, and the bursting pressure is 2.0 kgf.

[0064] The filter section 3 is made of polypropylene fiber polymer material.

[0065] The smoke temperature of the heat-not-burn cigarette with a water-capsule cooling section in this embodiment was tested and sensory evaluation was performed according to the method described in the specification of this application. At the same time, the heat-not-burn tobacco product sold by Philip Morris International under the trade name HEETS, which has a polylactic acid film cooling section, was also tested as a control sample. These test results are listed in Table 1.

[0066] Example 4: Heat-not-burn cigarette with water-containing capsule cooling section of the present invention

[0067] The implementation of this embodiment is as follows:

[0068] The heat-not-burn cigarette with a water-containing capsule cooling section is composed of a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3 connected in sequence;

[0069] The smoking section 1 is made of 0.1mm diameter particles of 200 mesh cut stem raw material powder;

[0070] The water-capsule cooling section 2 consists of water capsules 2-1 encapsulated by a porous polypropylene fiber membrane polymer material with a porosity of 35%. The water capsules 2-1 consist of a core liquid containing a fruit-flavored aqueous solution and a polyethylene hydrophobic resin shell. Three water capsules 2-1 with a diameter of 2.0 mm are embedded in the water-capsule cooling section 2. The water vapor permeability of the water capsules 2-1 is 0.01 mg / d, and the bursting pressure is 1.8 kgf.

[0071] The filter section 3 is made of polyester fiber polymer material filaments.

[0072] The smoke temperature of the heat-not-burn cigarette with a water-capsule cooling section in this embodiment was tested and sensory evaluation was performed according to the method described in the specification of this application. At the same time, the heat-not-burn tobacco product sold by Philip Morris International under the trade name HEETS, which has a polylactic acid film cooling section, was also tested as a control sample. These test results are listed in Table 1.

[0073] Example 5: Heat-not-burn cigarette with water-containing capsule cooling section of the present invention

[0074] The implementation of this embodiment is as follows:

[0075] The heat-not-burn cigarette with a water-containing capsule cooling section is composed of a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3 connected in sequence;

[0076] The smoke section 1 is made of 0.4mm diameter particles of 160-mesh black plum leaf plant raw material powder;

[0077] The water-capsule cooling section 2 consists of a water capsule 2-1 encapsulated by a porous, 75%-void polypropylene fiber polymer. The polymer consists of a core of liquid water encased in a hydrophobic polyethylene resin shell. Embedded within the water-capsule cooling section 2 is a 5.0 mm diameter water capsule 2-1 with a moisture permeability of 0.02 mg / d and a bursting pressure of 1.4 kgf.

[0078] The filter section 3 is made of polypropylene fiber polymer material.

[0079] The smoke temperature of the heat-not-burn cigarette with a water-capsule cooling section in this embodiment was tested and sensory evaluation was performed according to the method described in the specification of this application. At the same time, the heat-not-burn tobacco product sold by Philip Morris International under the trade name HEETS, which has a polylactic acid film cooling section, was also tested as a control sample. These test results are listed in Table 1.

[0080] Example 6: Heat-not-burn cigarette with water-containing capsule cooling section of the present invention

[0081] The implementation of this embodiment is as follows:

[0082] The heat-not-burn cigarette with a water-containing capsule cooling section is composed of a smoking section 1, a water-containing capsule cooling section 2 and a filtering section 3 connected in sequence;

[0083] The smoke-generating section 1 is made of 0.3 mm diameter particles of 180 mesh perilla leaf plant raw material powder;

[0084] The water-capsule cooling section 2 consists of water capsules 2-1 encapsulated by a porous polylactic acid polymer membrane. The polymer has a porosity of 85%. The water capsules 2-1 consist of a core liquid containing a mint essence aqueous solution and a polycarbonate hydrophobic resin shell. Three water capsules 2-1, each with a diameter of 0.1 mm, are embedded within the water-capsule cooling section 2. The water vapor permeability of the water capsules 2-1 is 0.03 mg / d, and the bursting pressure is 1.6 kgf.

[0085] The filter section 3 is made of polyester fiber polymer material filaments.

[0086] The smoke temperature of the heat-not-burn cigarette with a water-capsule cooling section in this embodiment was tested and sensory evaluation was performed according to the method described in the specification of this application. At the same time, the heat-not-burn tobacco product sold by Philip Morris International under the trade name HEETS, which has a polylactic acid film cooling section, was also tested as a control sample. These test results are listed in Table 1.

[0087] Table 1: Smoke temperature and sensory evaluation results of the heat-not-burn cigarettes with a water-containing capsule cooling section of the present invention

[0088]

[0089] The results listed in Table 1 clearly show that the average smoke temperature of the heat-not-burn cigarette with a water-capsule cooling section of the present invention is lower than that of the control sample cartridge, and the maximum average smoke temperature can be reduced by 8.4°C. The cooling effect is obvious, the smoke output is relatively stable, the draw resistance is relatively stable, the smoke is soft and delicate during the puffing process, the smoothness is enhanced while the temperature is reduced, and the aroma is better released, meeting the psychological and physiological needs of consumers.

Claims

1. A heat-not-burn cigarette with a water-containing capsule cooling section, characterized in that The invention is composed of a smoke-generating section (1), a water-containing capsule cooling section (2) and a filtering section (3) connected in sequence; the water-containing capsule cooling section (2) is composed of a water capsule (2-1) and a porous polymer material wrapping the water capsule (2-1); the porosity of the polymer material is 35-85%, and the polymer material is a polylactic acid, fiber paper, acetate fiber or polypropylene fiber gathered membrane material or silk material; 1-3 water capsules (2-1) with a diameter of 0.05-5.00 mm are embedded in the water-containing capsule cooling section (2); the water capsule (2-1) is composed of a core liquid of water or an aqueous essence water solution and a hydrophobic resin shell wrapping the core liquid, and its moisture permeability is 0.01-0.03 mg / d.

2. The heat-not-burn cigarette according to claim 1, characterized in that The smoking section (1) is made of tobacco leaves, reconstituted tobacco leaves, cut stems, plant raw material powder or particles; the particle size of the raw material powder is 100-200 meshes; the diameter of the raw material particles is 0.1-0.4 mm.

3. The heat-not-burn cigarette according to claim 2, characterized in that The reconstituted tobacco leaf is a papermaking method sheet, a dry method sheet, a thick pulp method sheet or a roller pressing method sheet.

4. The heat-not-burn cigarette according to claim 1, characterized in that The water-based flavor is selected from mint flavor, floral flavor or fruit flavor; the hydrophobic resin is polyethylene, polystyrene or polycarbonate resin.

5. The heat-not-burn cigarette according to claim 1, characterized in that The bursting pressure of the water capsule (2-1) is 0.7 to 2.0 kg.f.

6. The heat-not-burn cigarette according to claim 1, characterized in that The filter section (3) is made of high molecular material filaments such as polylactic acid, acetate fiber, polypropylene fiber or polyester fiber.

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