Composite solution capable of reducing woody odor of cut tobacco and application thereof

Abstract

The application relates to the field of cut stem processing, and particularly discloses a composite liquid capable of reducing the woody smell of cut stems and application thereof, which comprises water and a composite powder in a weight ratio of 1: (0.05-0.08), and the composite powder comprises the following components in parts by weight: 5-8 parts of sodium tripolyphosphate, 40-60 parts of modified zeolite powder and 2-4 parts of alginate propylene glycol ester; the modified zeolite powder comprises zeolite powder and acetic acid in a weight ratio of 1: (4-6). The application also discloses application of the composite liquid capable of reducing the woody smell of cut stems: a certain amount of water is mixed with the composite powder to prepare the composite liquid by adjusting the PH value, the composite liquid is uniformly sprayed on the cut stems, and the cut stems are placed at room temperature. The application has the effect of reducing the woody smell generated after the cut stems are burned, and improving the sensory quality of the cut stems.

Description

Technical Field

[0001] This application relates to the field of stem and fiber processing, and more specifically, to a composite liquid that can reduce the woody odor of stems and fibers and its application. Background Technology

[0002] Tobacco stems are the main veins of tobacco leaves, while stem shreds are made by cutting dried tobacco stems into shreds. Stem shreds are characterized by low nicotine content, fast burning speed, and excellent filling properties. Therefore, stem shreds can be used as an important filler in cigarettes, reducing the cost of cigarette formulation and avoiding the waste of discarded tobacco stems. However, stem shreds contain a high amount of lignin, which produces a woody odor and a burning sensation when burned. Increasing the amount of stem shreds in cigarettes will affect the sensory quality of the cigarettes, and stem shreds cannot be used in large quantities. Therefore, improving the sensory quality of stem shreds is of great significance for their full utilization. Summary of the Invention

[0003] In order to reduce the woody odor produced after the burning of stems and improve the sensory quality of stems, this application provides a composite liquid that can reduce the woody odor of stems and its application.

[0004] The technical solution provided in this application for a composite liquid that can reduce the woody odor of stems and fibers and its application is as follows: In a first aspect, this application provides a composite liquid that can reduce the woody odor of stems and fibers, employing the following technical solution: A composite liquid that can reduce the woody odor of stems and fibers comprises water and composite powder in a weight ratio of 1:(0.05-0.08). The composite powder comprises the following components in parts by weight: 5-8 parts of sodium tripolyphosphate, 40-60 parts of modified zeolite powder, and 2-4 parts of propylene glycol alginate. The modified zeolite powder comprises zeolite powder and acetic acid in a weight ratio of 1:(4-6). The method for preparing the modified zeolite powder includes the following steps: weighing zeolite powder and acetic acid, shaking and mixing, taking out the zeolite powder and drying it to obtain modified zeolite powder. The preparation method of the composite powder includes the following steps: weighing sodium tripolyphosphate, modified zeolite powder and propylene glycol alginate and mixing them evenly to obtain the composite powder.

[0005] By adopting the above technical solution, this application can obtain a composite liquid that can reduce the woody odor of stems and shreds. Experimental results show that the woody odor of stems and shreds treated with the composite liquid is lighter and less irritating. The composite liquid can improve the sensory quality of stems and shreds. The reason is that after the stems and shreds are treated with the composite liquid, propylene glycol alginate can dissolve in water to form a viscous colloid. When sodium tripolyphosphate and modified zeolite powder are added to the water-soluble propylene glycol alginate, sodium tripolyphosphate and modified zeolite powder can adhere to the surface of the stems and shreds with the help of the viscous colloid formed by the water-soluble propylene glycol alginate.

[0006] When stems burn, the lignin in the stems decomposes upon heating, producing woody gases in aerosol form. The main component of these woody gases is wood tar, which is one of the sources of impurities produced during stem combustion and has a pungent, acrid taste. Modified zeolite powder has numerous cavities and channels. When sodium tripolyphosphate is loaded onto the surface and channels of the modified zeolite powder, the sodium tripolyphosphate adsorbs the wood tar produced during stem combustion. The wood tar is then adsorbed onto the surface and within the pores of the modified zeolite powder. Through its porous internal structure and the adsorption effect of sodium tripolyphosphate, the modified zeolite powder reduces the woody gases released after stem combustion, thereby alleviating the irritation and burning sensation in the throat, and improving the sensory quality of the stems.

[0007] During the experiment, it was found that directly adding zeolite powder to the composite powder did not significantly improve the sensory quality of the wood stalks. The burning stalks still exhibited a strong woody odor and a burning sensation in the throat. This may be because the pores of the zeolite powder contain many impurities, allowing it to adsorb only a very small amount of wood tar, resulting in minimal change in the amount of woody odor released. This application modifies the zeolite powder with acetic acid. When acetic acid and zeolite powder are mixed and shaken, the acetic acid dissolves impurities in the micropores of the zeolite powder, appropriately increasing the number of micropores and improving the pore structure. Therefore, the modified zeolite powder exhibits better adsorption performance, enabling it to more fully absorb the woody odor released from the burning stalks, thus reducing irritation and improving sensory quality.

[0008] Optionally, the particle size of the zeolite powder is 0.5 to 2.0 mm.

[0009] By adopting the above technical solution, when the particle size of zeolite powder is 0.5 to 2.0 mm, the zeolite powder has good adsorption performance and can fully absorb the wood tar in the wood gas produced by burning wood stalks, thereby reducing the release of wood gas.

[0010] Optionally, the degree of esterification of the propylene glycol alginate is ≥80%.

[0011] By adopting the above technical solution, when the degree of esterification of propylene glycol alginate is ≥80%, the viscosity of propylene glycol alginate after water solubility is relatively large, which is conducive to the adhesion of sodium tripolyphosphate and modified zeolite powder to the surface of the stem, and increases the probability of sodium tripolyphosphate, modified zeolite powder and wood gas phase contact, so that sodium tripolyphosphate and modified zeolite powder can fully absorb the wood gas generated by combustion.

[0012] Optionally, the sodium tripolyphosphate includes high-temperature sodium tripolyphosphate and low-temperature sodium tripolyphosphate in a weight ratio of 1:(0.5-0.7).

[0013] By adopting the above technical solution, high-temperature sodium tripolyphosphate exhibits good thermal stability. However, it is prone to clumping when dissolved in water, while low-temperature sodium tripolyphosphate dissolves more slowly. Therefore, using a mixture of high-temperature and low-temperature sodium tripolyphosphate allows for both good thermal stability and good solubility, enabling sodium tripolyphosphate and modified zeolite powder to maintain good woody gas adsorption during the combustion of stems and filaments.

[0014] Optionally, the rotational speed of the oscillation mixing is 160-180 r / min, and the oscillation time is 1-1.5 h.

[0015] By adopting the above technical solution, when the oscillation speed is 160-180 r / min and the oscillation time is 1-1.5 h, the acetic acid and zeolite powder are thoroughly mixed by oscillation. The acetic acid dissolves the impurities in the pores of the zeolite powder, so that the modified zeolite powder can exhibit better adsorption performance.

[0016] Optionally, the drying temperature is 105–110°C.

[0017] By adopting the above technical solution, when the drying temperature is 105-110℃, the acetic acid mixed with zeolite powder by vibration can be fully volatilized, reducing the impact of residual acetic acid on the absorption of woody gases by modified zeolite powder.

[0018] Secondly, this application provides an application of a composite liquid that can reduce the woody odor of stems and fibers, using the following technical solution: An application of a composite liquid that can reduce the woody smell of stems and fibers involves mixing weighed water with composite powder evenly and adjusting the pH to 5.5-6.5 to obtain the composite liquid. The composite liquid is then evenly sprayed onto the stems and fibers, which are left at room temperature for 2-4 hours.

[0019] By adopting the above technical solution, the composite liquid is evenly sprayed into the stems and shreds. The components in the composite powder can adhere to the surface of the stems and shreds, so as to realize the absorption of woody odor by sodium tripolyphosphate and modified zeolite powder. The stems and shreds treated with the composite liquid have a lighter woody odor and less irritation, and the sensory quality is improved.

[0020] Optionally, the amount of the composite liquid added is 1.5% to 3% of the weight of the stems. By adopting the above technical solution, it is beneficial to mix the compound liquid with the stems and shreds evenly, which can reduce waste caused by excessive spraying of the compound liquid while ensuring the improvement effect of the stems and shreds.

[0021] In summary, this application has the following beneficial effects: 1. This application uses sodium tripolyphosphate, modified zeolite powder, propylene glycol alginate and water to prepare a composite liquid that can reduce the woody odor of stems and fibers. The stems and fibers treated with this composite liquid have a lighter woody odor and less irritation. The composite liquid can improve the sensory quality of the stems and fibers. At the same time, the modified zeolite powder exhibits good adsorption performance and can more fully absorb the woody odor released by the combustion of stems and fibers. 2. The composite liquid is evenly sprayed onto the stems. The components in the composite powder can adhere to the surface of the stems to achieve the absorption of woody odor by sodium tripolyphosphate and modified zeolite powder. Ultimately, this reduces the woody odor and irritation of the stems, giving them better sensory quality for use in cigarette fillers. Detailed Implementation

[0022] The following provides a further detailed description of this application.

[0023] Raw material introduction Table 1. Raw materials for preparing a composite liquid that can reduce the woody odor of stems and fibers. Example

[0024] Example 1 A composite liquid for reducing the woody odor of stems and fibers comprises water and composite powder in a weight ratio of 1:0.05. The composite powder comprises the following components by weight: 8 parts sodium tripolyphosphate, 40 parts modified zeolite powder, and 4 parts propylene glycol alginate. The modified zeolite powder comprises zeolite powder and acetic acid in a weight ratio of 1:4. The sodium tripolyphosphate comprises high-temperature sodium tripolyphosphate and low-temperature sodium tripolyphosphate in a weight ratio of 1:0.7. The preparation method of the modified zeolite powder includes the following steps: weighing zeolite powder and acetic acid are shaken and mixed, shaken and mixed at 160 r / min for 1 h, the zeolite powder is taken out and dried at 105℃ to obtain modified zeolite powder. The preparation method of the composite powder includes the following steps: weighing sodium tripolyphosphate, modified zeolite powder and propylene glycol alginate and mixing them evenly to obtain the composite powder.

[0025] The application of this composite liquid is as follows: Weigh out water and mix it evenly with the composite powder, adjust the pH to 6 to obtain the composite liquid, and spray the composite liquid evenly onto the stems. The amount of composite liquid added is 2.0% of the weight of the stems. Let the stems stand at room temperature for 3 hours.

[0026] Example 2 A composite liquid for reducing the woody odor of stems and fibers comprises water and composite powder in a weight ratio of 1:0.08. The composite powder comprises the following components in parts by weight: 5 parts sodium tripolyphosphate, 60 parts modified zeolite powder, and 2 parts propylene glycol alginate. The modified zeolite powder comprises zeolite powder and acetic acid in a weight ratio of 1:6. The sodium tripolyphosphate comprises high-temperature sodium tripolyphosphate and low-temperature sodium tripolyphosphate in a weight ratio of 1:0.5. The preparation method of the modified zeolite powder includes the following steps: weighing zeolite powder and acetic acid are shaken and mixed, shaken and mixed at 160 r / min for 1 h, the zeolite powder is taken out and dried at 105℃ to obtain modified zeolite powder. The preparation method of the composite powder includes the following steps: weighing sodium tripolyphosphate, modified zeolite powder and propylene glycol alginate and mixing them evenly to obtain the composite powder.

[0027] The application of this composite liquid is as follows: Weigh out water and mix it evenly with the composite powder, adjust the pH to 6 to obtain the composite liquid, and spray the composite liquid evenly onto the stems. The amount of composite liquid added is 2.0% of the weight of the stems. Let the stems stand at room temperature for 3 hours.

[0028] Example 3 A composite liquid for reducing the woody odor of stems and fibers comprises water and composite powder in a weight ratio of 1:0.06. The composite powder comprises the following components in parts by weight: 7 parts sodium tripolyphosphate, 55 parts modified zeolite powder, and 3 parts propylene glycol alginate. The modified zeolite powder comprises zeolite powder and acetic acid in a weight ratio of 1:5. The sodium tripolyphosphate comprises high-temperature sodium tripolyphosphate and low-temperature sodium tripolyphosphate in a weight ratio of 1:0.6. The preparation method of the modified zeolite powder includes the following steps: weighing zeolite powder and acetic acid are shaken and mixed, shaken and mixed at 160 r / min for 1 h, the zeolite powder is taken out and dried at 105℃ to obtain modified zeolite powder. The preparation method of the composite powder includes the following steps: weighing sodium tripolyphosphate, modified zeolite powder and propylene glycol alginate and mixing them evenly to obtain the composite powder.

[0029] The application of this composite liquid is as follows: Weigh out water and mix it evenly with the composite powder, adjust the pH to 6 to obtain the composite liquid, and spray the composite liquid evenly onto the stems. The amount of composite liquid added is 2.0% of the weight of the stems. Let the stems stand at room temperature for 3 hours.

[0030] Example 4 The difference between Example 4 and Example 3 is that an equal amount of high-temperature sodium tripolyphosphate is used instead of low-temperature sodium tripolyphosphate in the composite powder, that is, only high-temperature sodium tripolyphosphate is used.

[0031] Comparative Example Comparative Example 1 The difference between Comparative Example 1 and Example 3 is that no composite liquid was sprayed onto the stems for treatment.

[0032] Comparative Example 2 The difference between Comparative Example 2 and Example 3 is that an equal amount of zeolite powder is used instead of modified zeolite powder in the composite powder.

[0033] Comparative Example 3 The difference between Comparative Example 3 and Example 3 is that sodium tripolyphosphate was not added to the composite powder.

[0034] Comparative Example 4 The difference between Comparative Example 4 and Example 3 is that no propylene glycol alginate was added to the composite powder.

[0035] Performance testing The stems prepared in Examples 1-4 and Comparative Examples 1-4 were rolled into test samples using tobacco materials according to a quality standard of (620±5) mg / cigarette. The tobacco materials included filter rods (144 mm in length) and wood pulp cigarette paper (26 g / m² basis weight). 2 ) and tipping paper (basis weight 35g / m 2 (Poor ventilation).

[0036] Sensory quality determination: The rolled samples were placed in a constant temperature and humidity chamber and equilibrated for 48 hours at a temperature of 22℃ and a relative humidity of 60%. The individual cigarettes were sorted by weight at (620±5) mg / cigarette. The sensory quality was evaluated by 11 tasters. The tasters scored the irritation, woody aroma and aroma of the cigarettes and calculated the average score. Each item was scored out of 10. The less irritation and woody aroma and the stronger the aroma, the higher the score.

[0037] Tar release determination: The tar release of the rolled sample was determined according to the method in GB 5606.5—2005.

[0038] Anti-fragmentation performance test: The stems prepared in Examples 1-4 and Comparative Examples 1-4 were simulated to be fragmented using a shredder, and the fragmentation rate of the sample stems was determined according to YC / T 178-2003, i.e., the ratio of the mass of stems with a length <1.0 mm to the total mass of the sample stems, using a tobacco structure vibration sorting sieve.

[0039] Table 2. Sensory quality and tar release test results of cigarette samples prepared in Examples 1-4 and Comparative Examples 1-4. Table 3. Test results of the anti-torn properties of the stem samples prepared in Examples 1-4 and Comparative Examples 1-4. According to the test data recorded in Table 2, as can be seen from Comparative Example 1 and Example 3, the composite liquid prepared in this application can reduce the woody odor of stems and fibers. The stems and fibers treated with the composite liquid have a lighter woody odor and less irritation. The composite liquid improves the sensory quality of the stems and fibers. This is because, after treatment with the composite liquid, propylene glycol alginate dissolves in water to form a viscous colloid. When sodium tripolyphosphate and modified zeolite powder are added to the water-soluble propylene glycol alginate, the sodium tripolyphosphate and modified zeolite powder can adhere to the surface of the stems and fibers with the help of the viscous colloid formed by the water-soluble propylene glycol alginate.

[0040] When stems burn, the lignin in the stems decomposes upon heating, producing woody gases in aerosol form. The main component of these woody gases is wood tar. Modified zeolite powder has many cavities and channels. When sodium tripolyphosphate is loaded onto the surface and channels of the modified zeolite powder, the sodium tripolyphosphate adsorbs the wood tar produced during the combustion of the stems. The wood tar is then adsorbed onto the surface and channels of the modified zeolite powder. Through the combination of its porous internal structure and the adsorption effect of sodium tripolyphosphate, the modified zeolite powder reduces the woody gases released after the stems burn, thereby alleviating the irritation and burning sensation in the throat, and improving the sensory quality of the stems.

[0041] As can be seen from Example 3 and Comparative Example 2, directly adding zeolite powder to the composite powder did not significantly improve the sensory quality of the wood stalks. This may be because the pores of the zeolite powder contain many impurities, allowing it to adsorb only a very small amount of wood tar, resulting in minimal change in the amount of wood tar released. In this application, zeolite powder is modified with acetic acid. Acetic acid can dissolve impurities in the micropores of the zeolite powder, appropriately increasing the number of micropores. Therefore, the modified zeolite powder exhibits better adsorption properties, enabling it to more fully absorb the wood tar released from the combustion of the wood stalks, thereby reducing irritation and improving sensory quality.

[0042] As can be seen from Examples 3 and 4, when sodium tripolyphosphate is used as a mixture of high-temperature sodium phosphate and low-temperature sodium phosphate, sodium tripolyphosphate has good thermal stability and solubility. Sodium tripolyphosphate and modified zeolite powder can maintain good wood gas adsorption effect when the stems are burned.

[0043] According to the test data recorded in Table 3, it can be seen from Example 3 and Comparative Example 1 that the breakage rate of the stems after being discharged through the composite liquid is basically unchanged, that is, the anti-breakage performance of the stems can be maintained at a certain level. Therefore, the use of the composite liquid has little impact on the anti-breakage performance of the stems.

[0044] The above specific embodiments are merely explanations of this application and are not intended to limit this application. After reading this specification, those skilled in the art can make modifications to this application without contributing any inventive step, but all such modifications should be covered within the protection scope of this application.

Claims

1. A composite liquid that can reduce the woody odor of stems and fibers, characterized in that: It includes water and composite powder in a weight ratio of 1:(0.05-0.08), wherein the composite powder comprises the following components by weight: 5-8 parts of sodium tripolyphosphate, 40-60 parts of modified zeolite powder, and 2-4 parts of propylene glycol alginate; wherein the modified zeolite powder comprises zeolite powder and acetic acid in a weight ratio of 1:(4-6). The sodium tripolyphosphate includes high-temperature sodium tripolyphosphate and low-temperature sodium tripolyphosphate in a weight ratio of 1:(0.5-0.7); The method for preparing the modified zeolite powder includes the following steps: weighing zeolite powder and acetic acid, shaking and mixing, taking out the zeolite powder and drying it to obtain modified zeolite powder. The preparation method of the composite powder includes the following steps: weighing sodium tripolyphosphate, modified zeolite powder and propylene glycol alginate and mixing them evenly to obtain the composite powder; The application method of the composite liquid is as follows: mix the weighed water and composite powder evenly, and adjust the pH to 5.5-6.5 to obtain the composite liquid. Spray the composite liquid evenly onto the stems and let the stems stand at room temperature for 2-4 hours. The amount of the composite liquid added is 1.5% to 3% of the weight of the stems.

2. The composite liquid material for reducing the woody odor of stems and fibers according to claim 1, characterized in that: The particle size of the zeolite powder is 0.5 to 2.0 mm.

3. The composite liquid material for reducing the woody odor of stems and fibers according to claim 1, characterized in that: The degree of esterification of the alginate propylene glycol ester is ≥80%.

4. The composite liquid material for reducing the woody odor of stems and fibers according to claim 1, characterized in that: The rotational speed of the oscillation mixing is 160-180 r / min, and the oscillation time is 1-1.5 h.

5. The composite liquid material for reducing the woody odor of stems and fibers according to claim 1, characterized in that: The drying temperature is 105–110°C.

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