Composite filter stick capable of reducing tar and dryness and cigarette

Abstract

The invention discloses a composite filter stick capable of reducing tar and dryness and a cigarette, and belongs to the field of cigarette filter sticks. The filter stick comprises a first-section stick, a second-section stick and a second-section stick which are connected in sequence, the third section of rod is a near-mouth end; the first section of rod comprises a first paper rod, a fixing element, a second paper rod and a groove rod which are connected in sequence; the second section of rod comprises a groove rod, a first paper rod, a fixing element and a second paper rod which are connected in sequence; the second paper rod contains filter rod particles, and the filter rod particles comprise the following components in parts by weight: 4-7 parts of an antioxidant, 0.1-1 part of a humidifying deodorant and 0.5-3 parts of a plasticizer; the humidifying deodorant comprises sucrose fatty acid ester, gel and mannitol. According to the composite filter stick, tar reduction, aroma enhancement and drying removal are effectively carried out on cigarette smoke through double combination of the structure and the material; sensory experience is improved, and discomfort caused by dryness after smoke enters the throat is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of cigarette filter rods, and relates to a composite filter rod and a cigarette capable of reducing tar and dryness. Background Art

[0002] Smoking and health issues have always received widespread attention from the society, and the tobacco industry has focused on developing "low-tar, low-hazard" cigarettes. In recent years, research on filters to reduce harmful components in smoke has become a hot spot in the industry's research and development, and tobacco industry researchers have carried out a lot of research work on filter additive technology and filter structure design.

[0003] Compared with filter rods made of materials such as acetate fiber, paper filter rods have stronger biodegradability, adsorption, and tar reduction effects. In addition, paper filter rods are cheap and low in cost. However, the use of paper filter rods still has at least the following disadvantages: 1) The tar reduction effect needs to be improved; 2) The use of paper filter rods will make the smoke drier; when smoking, the relatively dry smoke entering the mouth will cause discomfort in the throat, which will bring some bad smoking experience.

[0004] Therefore, it is necessary to develop a new composite filter rod that can reduce scorch and dryness to solve the above-mentioned technical problems. Summary of the invention

[0005] In order to solve the above technical problems, a composite filter rod for reducing tar and dryness is provided; the composite filter rod effectively reduces tar, increases aroma and removes dryness of cigarette smoke through a dual combination of structure and material; improves sensory experience and reduces discomfort caused by dryness after smoke enters the throat.

[0006] The specific technical solutions of this application are as follows:

[0007] The present application provides a composite filter rod for reducing tar and drying, the composite filter rod comprising a first section rod, a second section rod, a first section rod, and a second section rod connected in sequence;

[0008] The first section of the rod comprises a first paper rod, a fixing element, a second paper rod, and a groove rod connected in sequence; the second section of the rod comprises a groove rod, a first paper rod, a fixing element, and a second paper rod connected in sequence;

[0009] The second paper stick contains filter stick particles, and the filter stick particles include the following components in parts by weight:

[0010] 4-7 parts of antioxidant, 0.1-1 parts of moisturizing and deodorizing agent, 0.5-3 parts of plasticizer;

[0011] The moisturizing and deodorizing agent is composed of sucrose fatty acid ester and mannitol; the weight addition ratio between the sucrose fatty acid ester and mannitol is 2:1-3.

[0012] Optionally, the antioxidant includes peony extract, tomato extract, ginger extract, and peppermint extract.

[0013] Optionally, the antioxidant is composed of peony extract, tomato extract and ginger extract in a weight ratio of 1-3:1-3:1-3, or tomato extract, ginger extract and peppermint extract in a weight ratio of 1-3:1-3:1-3.

[0014] Optionally, the fixing element is composed of a first cylinder and a second cylinder; the second cylinder is sleeved inside the first cylinder; the first cylinder is provided with an upper opening and a lower opening at both ends; the second cylinder is located above the lower opening of the first cylinder, and the circumference of the second cylinder is the same as the shape and size of the lower opening of the first cylinder; so that the smoke flowing out of the first paper stick enters the interior of the fixing element only through the internal channel of the second cylinder;

[0015] The side wall of the second cylinder is provided with two or more through holes, so that the smoke inside the second cylinder flows into the interior of the second cylinder and the first cylinder through the through holes.

[0016] Optionally, the filter rod particles are any one of elliptical, spherical, and columnar; preferably, they are spherical with a diameter of 0.02-0.1 mm.

[0017] Optionally, the filter rod particles are evenly distributed along the length direction of the second paper rod.

[0018] Optionally, the plasticizer includes polyethylene glycol, hydroxypropyl methylcellulose, konjac gum, and carrageenan.

[0019] Optionally, the length of the first paper rod is 7±0.1 mm; the lengths of the second paper rod and the fixing element are both 8±0.1 mm; the length of the groove rod is 0.75±0.1 mm; and the circumference of the composite filter rod is 23.75±0.2 mm.

[0020] The present application also provides a cigarette prepared by including the above-mentioned composite filter rod.

[0021] The present application also provides a use of the above-mentioned composite filter rod in the preparation of high-quality cigarettes.

[0022] The beneficial effects of this application include but are not limited to:

[0023] 1. The composite filter rod of the present application effectively reduces tar, increases aroma, and removes dryness of cigarette smoke through a combination of structure and material; improves sensory experience and reduces discomfort caused by dryness after smoke enters the throat;

[0024] 2. The fixed element prepared by the present application can change the flue gas path, delay the retention time of the airflow in the buffer cavity, and partially deposit the harmful substances in the flue gas; the other part of the airflow flows into the deposition cavity through the through hole. The flue gas that collides and flows out of the buffer cavity and the flue gas that directly enters the deposition cavity collide again on the inner wall of the deposition cavity, resulting in diffusion deposition, so that the harmful substances in the flue gas adhere to the deposition cavity, further improving the filtration efficiency.

[0025] 3. The humidifying and deodorizing agent prepared from sucrose fatty acid ester and mannitol can effectively reduce the dryness of cigarette smoke and bring an excellent sensory experience. The humidity of the smoke reaching the mouth reaches a humidity of more than 40%RH, especially when the weight addition ratio between sucrose fatty acid ester and mannitol is 2:1-3, the effect is better and can reach 46%. And by adding specific extracts, while resisting oxidation, it can also effectively remove the smell of sucrose fatty acid ester itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the composite filter rod of this application;

[0028] Figure 2 This is a schematic diagram of the structure of the fixing element of this application.

[0029] List of parts and reference numerals:

[0030] 1 first section of rod, 2 second section of rod, 11 first paper rod, 12 fixing element, 121 second cylinder, 122 through hole, 123 deposition chamber, 124 first cylinder, 13 second paper rod, 4 groove rod. DETAILED DESCRIPTION

[0031] The present application is described in detail below with reference to embodiments, but the present application is not limited to these embodiments.

[0032] In order to more clearly explain the overall concept of the application, the following is described in detail by way of embodiment. In the following description, a large amount of specific details are provided so as to provide a more thorough understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the application, some technical features well known in the art are not described.

[0033] The cigarettes were prepared using a cigarette-making machine model ZJ17 provided by Changde Tobacco Machinery Co., Ltd. The smoke detection test was conducted using a fully automatic smoking machine.

[0034] Example 1

[0035] A composite filter rod for reducing tar and drying, comprising a first section rod 1, a second section rod 2, a first section rod 1, and a second section rod 2 connected in sequence;

[0036] The first section rod 1 includes a first paper rod 11, a fixing element 12, a second paper rod 13, and a groove rod 14 connected in sequence; the second section rod 2 includes a groove rod 14, a first paper rod 11, a fixing element 12, and a second paper rod 13 connected in sequence;

[0037] The length of the first paper rod 11 is 7 mm; the length of the second paper rod 13 and the fixing element 12 are both 8 mm; the length of the groove rod 14 is 0.75 mm; the circumference of the composite filter rod is 23.75 mm;

[0038] The second paper rod 13 contains filter rod particles evenly distributed along the length direction of the second paper rod 13; the filter rod particles include the following components in parts by weight:

[0039] 4 parts of antioxidant, 0.4 parts of humidifying and deodorizing agent, 1 part of plasticizer;

[0040] The moisturizing and deodorizing agents are sucrose fatty acid esters and mannitol;

[0041] The moisturizing and deodorizing agent is composed of sucrose fatty acid ester and mannitol; the weight addition ratio between the sucrose fatty acid ester and mannitol is 2:3;

[0042] The antioxidant is composed of tomato extract, ginger extract, and peppermint extract in a weight ratio of 1:1:1;

[0043] The plasticizer is composed of hydroxypropyl methylcellulose and carrageenan in a weight ratio of 1:1.

[0044] The filter rod particles are prepared by the following method:

[0045] A moisturizing and deodorizing agent composed of sucrose fatty acid ester and mannitol is added to 1.5% by weight of distilled water, stirred, and the above-mentioned antioxidant and plasticizer are added at a uniform rate to obtain a mixture. The mixture is granulated using an automatic granulator, and filter rod particles are obtained after drying. The particles are spherical and have a particle size of about 0.1 mm.

[0046] like Figure 1-2As shown, the fixing element 12 is composed of a first cylinder 124 and a second cylinder 121; the second cylinder 121 is sleeved inside the first cylinder 124; the first cylinder 124 is provided with an upper opening and a lower opening at both ends; the second cylinder 121 is located above the lower opening of the first cylinder 124, and the circumference of the second cylinder 121 is the same in shape and size as the lower opening of the first cylinder 124; so that the smoke flowing out of the first paper stick 11 enters the fixing element 12 only through the inner channel of the second cylinder 121;

[0047] The side wall of the second cylinder 121 is provided with two through holes 122 , so that the smoke inside the second cylinder 121 flows into the interior of the second cylinder 121 and the first cylinder 124 through the through holes 122 .

[0048] During use:

[0049] First, the fixed element 12 itself forms a deposition chamber 123 inside the inner shell of the first cylinder 124, and forms a buffer chamber inside the second cylinder 121. After the smoke flows out from the first paper rod 11 in the first section rod 1, it begins to flow through the fixed element 12, and the airflow is distributed at the two through holes 122 in the buffer chamber. Part of the smoke encounters the cross section and the inner wall of the deposition chamber 123 in the buffer chamber and collides, changing the smoke path, delaying the retention time of the airflow in the buffer chamber, and causing partial deposition of harmful substances in the smoke; the other part of the airflow flows into the deposition chamber 123 through the through hole 122. The smoke that collides and flows out of the buffer chamber and the smoke that directly enters the deposition chamber 123 collide again on the inner wall of the deposition chamber 123, resulting in diffusion deposition, so that the harmful substances in the smoke adhere to the deposition chamber 123, further improving the filtration efficiency. After flowing out from the fixed element 12, it enters the second paper rod 13 and the groove rod 14 in turn. Then it enters the second section rod 2; the groove rod 14 in the second section rod 2 is located in front of the first paper rod 11 and connected to the groove rod 14 in the first section rod 1, and the rest is the same as the first section rod 1. The first section rod 1 and the second section rod 2 that pass through in sequence for the second time are repeated with the previous ones. Figure 2 The direction of the arrow is the direction of smoke flow.

[0050] Embodiment 2 screens moisturizing deodorant.

[0051] The difference between this embodiment and embodiment 1 is that the humidifying and deodorizing agents are different, and the rest are the same. This embodiment sets humidifying and deodorizing agents with different components, and tests the effects of different humidifying and deodorizing agents on cigarette smoke; the specific test results are shown in Table 1 below.

[0052] Filter rod dryness test method:

[0053] A fully automatic smoking machine was used for smoking. A sealed container was set at the filter tip so that smoke flowed out of the container from the filter tip. After about 40 seconds, a handheld hygrometer was used to detect the humidity in the device. If it was lower than about 27% RH, it was dry; because according to previous experiments, when the humidity of the gas was lower than 27% RH, 45 out of 50 subjects began to have obvious coughing, dry throat and other discomforts. When it was at 40% RH to 48% RH, the smoking experience was comfortable, without coughing, dry throat and other discomforts.

[0054] Table 1 Effect of different components on humidification and deodorization effect

[0055]

[0056] It can be seen from the data in the above table that compared with filter rod particles prepared with other component ratios, the humidifying deodorant prepared from sucrose fatty acid ester: mannitol can effectively reduce the dryness of cigarette smoke and bring excellent sensory experience. The humidity of the smoke reaching the oral cavity reaches more than 40% RH, especially when the weight addition ratio between sucrose fatty acid ester and mannitol is 2:1-3, the effect is better and can reach 46%.

[0057] The reason is that mannitol belongs to the class of polyhydric alcohols. When smoke passes through the filter rod particles, the filter rod particles are heated. At this time, mannitol can remove water molecules when heated, thereby increasing the humidity of the smoke. Moreover, the hydroxyl group of the second carbon of mannitol is located behind the plane in the Fischer projection of mannitol. When it is heated and dehydrated, it has a greater impact on the surface wettability of the smoke, allowing the smoke to be moistened and flow into the oral cavity at a faster rate. Although sorbitol also belongs to the class of polyhydric alcohols, the hydroxyl group of the second carbon of sorbitol leaves the plane in the Fischer projection of sorbitol. When it is heated and dehydrated, its surface wettability to the smoke is relatively weak and it wets slowly. A considerable portion of the dry smoke flows into the oral cavity before it is fully exposed to the smoke.

[0058] Compared with mannitol and sorbitol, maltitol evaporates faster when heated, so that some water molecules evaporate before the smoke approaches the filter rod particles. By the time the smoke approaches, some water molecules have been dried and evaporated through the cigarette packaging paper.

[0059] Sucrose fatty acid esters and polyethylene glycol are both surfactants. When combined with mannitol, they can reduce the surface tension of water molecules produced by mannitol, thereby increasing the wetting angle and the contact surface of water molecules with smoke. However, polyethylene glycol has a relatively low melting point and is prone to form a viscous liquid or waxy solid after being exposed to high temperature smoke, which prevents the water molecules produced by mannitol from continuously contacting the smoke.

[0060] Therefore, a mixture of sucrose fatty acid ester and mannitol was selected as a humidifying and deodorizing agent in the preparation of filter rod particles. However, there is still some "special smell" in the prepared filter rod particles, which may be caused by the smell of sucrose fatty acid ester itself; although it is not a bad smell, it may have a certain impact on the smoking experience of some smokers.

[0061] Example 3 Selection of antioxidants

[0062] The antioxidant was selected based on the preferred parameters of Example 2. In order to increase the smoke fragrance and enhance the richness of the smoke, extracts of natural plant materials were selected as antioxidants, which aimed to achieve a flavoring effect while resisting oxidation. The following is a test of filter rod particles prepared with different natural plant materials as antioxidants during the experiment, and the test results are as follows:

[0063] Table 2 Effects of antioxidants on cigarette smoke

[0064]

[0065] It can be seen from the data in the above table that the filter rod particles prepared from the above different components play a role in enhancing the aroma of smoke to varying degrees. However, only the filter rod particles prepared from peony extract: tomato extract: ginger extract and tomato extract: ginger extract: mint extract can have a strong fruity aroma and rich smoke aroma without the special taste that existed before. The reason may be that ginger can coordinate with the other two extracts to a certain extent, while enhancing the aroma, it effectively overcomes the special smell brought by sucrose fatty acid esters. From the perspective of de-drying, the filter rod particles prepared from tomato extract: ginger extract: mint extract have a better effect. Therefore, the filter rod particles prepared from tomato extract: ginger extract: mint extract are selected as the best choice.

[0066] Example 4: Distribution of Composite Filter Rod Structure

[0067] 4-1) A composite filter rod with reduced tar and reduced drying, i.e., Example 1. Figure 1-2 As shown in the figure, the same color represents the same parts, line a represents the segmentation line between the first section rod 1 and the second section rod 2; the part between line b and line c, and the part from line c to the opposite direction of line b are the repeated first section rod 1 and second section rod 2 respectively.

[0068] 4-2) A composite filter rod for reducing tar and dryness, comprising a first rod section 1 and a second rod section 2 connected in sequence; the rest is the same as in Example 1.

[0069] 4-3) A composite filter rod for reducing tar and drying, comprising a first rod section 1, a second rod section 2, a first rod section 1, and a second rod section 2 connected in sequence; the first rod section 1 comprises a first paper rod 11, a second paper rod 13, and a groove rod 14 connected in sequence; the second rod section 2 comprises a groove rod 14, a first paper rod 11, and a second paper rod 13 connected in sequence. The rest is the same as in Example 1.

[0070] 4-4) A composite filter rod for reducing tar and drying, comprising a first rod section 1, a second rod section 2, a first rod section 1, and a second rod section 2 connected in sequence; the first rod section 1 comprises a first paper rod 11, a groove rod 14, and a second paper rod 13 connected in sequence; the second rod section 2 comprises a first paper rod 11, a groove rod 14, and a second paper rod 13 connected in sequence. The rest is the same as in Example 1.

[0071] Table 3 Effect of different filter rod structures on coke reduction

[0072] project Nicotine content (mg / stick) Tar content (mg / stick) 4-1 0.55 5.8 4-2 0.63 6.2 4-3 0.60 6.4 4-4 0.62 6.3

[0073] During the experiment, it was found that among the above four structural distributions, the filter rod particles prepared according to the structural distribution of Example 1 had the best tar reduction effect. The reason is that the fixed element 12 in Example 1 is located between the first paper rod 11 and the second paper rod 13, which has a certain interval humidification effect on the flue gas, and prevents the particles from volatilizing when a long section of flue gas continues to reach the filter rod particles. Secondly, the fixed element 12 itself forms a deposition chamber 123 inside the inner shell of the first cylinder 124, and a buffer chamber inside the second cylinder 121. When the flue gas begins to flow through the fixed component, the airflow is distributed at the two through holes 122 in the buffer chamber, and a part of the flue gas encounters the cross section and the inner wall of the deposition chamber 123 in the buffer chamber and collides, changing the flue gas path, delaying the residence time of the airflow in the buffer chamber, and causing partial deposition of harmful substances in the flue gas; the other part of the airflow flows into the deposition chamber 123 through the through hole 122. The flue gas colliding out of the buffer chamber and the flue gas directly entering the deposition chamber 123 collide again on the inner wall of the deposition chamber 123 to produce diffused deposition, so that harmful substances in the flue gas adhere to the deposition chamber 123, further improving the filtering efficiency.

[0074] The above is only the embodiment of the present application, and the protection scope of the present application is not limited by these specific embodiments, but is determined by the claims of the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the technical ideas and principles of the present application should be included in the protection scope of the present application.

Claims

1. A composite filter rod for reducing tar and drying. It is characterized in that The composite filter rod comprises a first section rod, a second section rod, a first section rod, and a second section rod connected in sequence; The first section of the rod comprises a first paper rod, a fixing element, a second paper rod, and a groove rod connected in sequence; the second section of the rod comprises a groove rod, a first paper rod, a fixing element, and a second paper rod connected in sequence; The second paper stick contains filter stick particles, and the filter stick particles include the following components in parts by weight: 4-7 parts of antioxidant, 0.1-1 parts of moisturizing and deodorizing agent, 0.5-3 parts of plasticizer; The moisturizing and deodorizing agent is composed of sucrose fatty acid ester and mannitol; the weight addition ratio between the sucrose fatty acid ester and mannitol is 2:1-3.

2. The composite filter rod according to claim 1, It is characterized in that The antioxidants include peony extract, tomato extract, ginger extract and peppermint extract.

3. The composite filter rod according to claim 1, It is characterized in that The antioxidant is composed of peony extract, tomato extract and ginger extract in a weight ratio of 1-3:1-3:1-3, or tomato extract, ginger extract and mint extract in a weight ratio of 1-3:1-3:1-3.

4. The composite filter rod according to claim 1, It is characterized in that The fixing element is composed of a first cylinder and a second cylinder; the second cylinder is sleeved inside the first cylinder; the first cylinder is provided with an upper opening and a lower opening at both ends; the second cylinder is located above the lower opening of the first cylinder, and the circumference of the second cylinder is the same as the shape and size of the lower opening of the first cylinder; so that the smoke flowing out of the first paper stick enters the fixing element only through the inner channel of the second cylinder; The side wall of the second cylinder is provided with two or more through holes, so that the smoke inside the second cylinder flows into the interior of the second cylinder and the first cylinder through the through holes.

5. The composite filter rod according to claim 1, It is characterized in that The filter rod particles are any one of elliptical, spherical and columnar; preferably, they are spherical with a diameter of 0.02-0.1 mm.

6. The composite filter rod according to claim 1, It is characterized in that The filter rod particles are evenly distributed along the length direction of the second paper rod.

7. The composite filter rod according to claim 1, It is characterized in that The plasticizer includes polyethylene glycol, hydroxypropyl methylcellulose, konjac gum and carrageenan.

8. The composite filter rod according to claim 2, It is characterized in that The length of the first paper rod is 7±0.1 mm; the lengths of the second paper rod and the fixing element are both 8±0.1 mm; the length of the groove rod is 0.75±0.1 mm; and the circumference of the composite filter rod is 23.75±0.2 mm.

9. A cigarette comprising the composite filter plug according to claim 1.

10. Use of the composite filter rod according to claim 1 in preparing reduced-tar and reduced-dryness cigarettes.

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