Preparation method and application of particles with specific functions

Abstract

The invention belongs to the technical field of functional material preparation and tobacco products, and particularly relates to a preparation method and application of particles with specific functions, and the preparation method of the particles with the specific functions comprises the following steps: preparing basic particles; the basic particles are endowed with a specific color by adopting a set process; carrying out anti-static treatment on the colored particles; the particles are endowed with a moistening effect; and drying to obtain the particles with specific color and moistening and electrostatic effects at the same time. The particle modifies a filter tip through a specific color, so that the appearance of a cigarette is improved; particle aggregation and adsorption are avoided through the weak electrostatic adsorption effect, the influence on suction resistance is reduced, and the attractiveness is improved; and the smoking experience of the user is improved through the moistening effect. Under the combined action of the characteristics, a brand new thought and a solution are provided for the design of the cigarette filter tip.

Description

Technical Field

[0001] This invention belongs to the field of functional material preparation and tobacco product technology, specifically relating to a method for preparing particles with specific functions and their application, particularly to a method for preparing particles that are both decorative and functional, and a ternary cavity filter rod containing the particles. Background Technology

[0002] In cigarette filter design, the appearance and function of the filter tip are crucial for enhancing user experience and product competitiveness. Traditional filter designs primarily focus on filtration efficiency and tar reduction, with less attention paid to aesthetics and user experience. In recent years, as consumers' demands for cigarette quality and appearance have increased, developing filters with unique functions and aesthetics has become a hot research topic in the industry.

[0003] In traditional filter tips, particulate materials are prone to agglomeration due to electrostatic adsorption. This not only affects the suction resistance and filtration effect of the filter tip, but may also cause particles to adhere to the surface of the viewing window cavity membrane, affecting the aesthetics and suction experience. Summary of the Invention

[0004] The purpose of this invention is to provide a method for preparing and applying particles with specific functions. These particles can not only improve the appearance of cigarettes, but also have certain functionalities, such as moisturizing effect and electrostatic adsorption function, thereby improving the smoking experience of cigarettes.

[0005] To achieve the above objectives, this application employs the following technical solution:

[0006] A method for preparing particles with a specific function includes the following steps:

[0007] S1. Preparation of basic particles;

[0008] S2. A specific color is given to the base particles using a set process;

[0009] S3. Apply anti-static treatment to the colored granules;

[0010] S4, imparts a moisturizing effect to the particles;

[0011] S5. Drying yields particles with a specific color and possessing moisturizing and electrostatic effects.

[0012] Furthermore, the basic particles in step S1 are made of inorganic or organic materials through a set preparation process to produce transparent or opaque particles with a particle size range of 14-30 mesh.

[0013] Furthermore, the organic materials include, but are not limited to, natural organic materials such as starch, cellulose, polysaccharide polymers, and synthetic organic materials such as polypropylene, polyethylene, and polystyrene; the inorganic non-metallic materials include, but are not limited to, single-component materials such as silicon dioxide, aluminum oxide, and titanium dioxide, and multi-component materials such as quartz powder, mica powder, and talc powder.

[0014] Furthermore, the process may include, but is not limited to, one or more of the following processes: melt granulation, extrusion granulation, and spheronization granulation.

[0015] Furthermore, the base particle material is inorganic quartz powder, the preparation process is melt granulation, and the prepared base particles are transparent particles with a particle size of 16-20 mesh.

[0016] Furthermore, the coloring process in step S2 is a coating process, and the coating solution is composed of water or a mixture of water and distillers' grains, water-soluble polymers and pigments.

[0017] Furthermore, the coating process includes, but is not limited to, one or more combinations of spray coating, dip coating, and dry-press coating.

[0018] Furthermore, the coating process is a spray coating process, using a peristaltic pump to pump the coating liquid at a flow rate of 7-14 mL / min, specifically 11 mL / min; the atomizing pressure is set to 0.18-0.25 mPa, specifically 0.23 mPa.

[0019] Furthermore, the water-soluble polymers include, but are not limited to, hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), hydroxymethyl cellulose (HMC), polyacrylic acid, sodium polyacrylate, etc.

[0020] Furthermore, the water-soluble polymer material is HPMC, the coating solvent is a mixed solution of water and alcohol with a mass ratio of water to alcohol of 7:3, the solid content of the coating solution is 7wt%-9wt%, and the coating weight gain is 1wt%-3wt%.

[0021] Furthermore, the pigment is a food-grade pigment, and the color includes, but is not limited to, red, green, and blue.

[0022] Furthermore, the food-grade pigment is a blue pigment, and the amount of pigment added is 2wt‰-6wt‰.

[0023] Furthermore, the antistatic treatment process described in step S3 is a coating process, and the coating solution is composed of a polymer with good hydrophilicity and film-forming transparency and water.

[0024] Furthermore, the coating process is the same as the coating process in step S2.

[0025] Furthermore, the polymeric material with good hydrophilicity and film-forming transparency includes, but is not limited to, one or more of polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), and bis[hydroxypropyltrimethylammonium chloride] oleylamine.

[0026] Furthermore, the polymer material used for antistatic coating, which has good hydrophilicity and film-forming transparency, is PVA, and the solid content of the antistatic coating solution is 1wt%-3wt%, with a coating weight gain of 4wt‰-8wt‰.

[0027] The moisturizing process in step S4 adopts a coating process, and the coating solution is composed of acidulant and water.

[0028] Furthermore, the coating process is the same as the coating process in step S2.

[0029] Furthermore, the acidulant includes, but is not limited to, one or more of malic acid, potassium malate, citric acid, and potassium citrate.

[0030] Furthermore, the acidulant is citric acid, the solid content of the citric acid solution is 1wt%-3wt%, and the coating weight gain of citric acid is 3wt‰-7wt‰.

[0031] Furthermore, the drying temperature in step S5 is 50℃-70℃, and the drying time is 6-8h.

[0032] Furthermore, the drying temperature is 70°C and the drying time is 6 hours.

[0033] The beneficial effects of this invention are:

[0034] This invention proposes a type of granule with a specific color that can modify cigarette filters, improve the appearance of cigarettes, and enhance their visual appeal. By adding granules of a specific color to the filter, a visual modification can be achieved, making it more attractive. This color modification not only improves the overall aesthetics of the cigarette but also meets consumers' demands for personalized and high-quality products.

[0035] The weak electrostatic adsorption effect of the particles is another important feature of this invention. Through a special surface treatment process, this invention enables the particles to exhibit a weak electrostatic adsorption effect, thereby preventing particle aggregation in the filter tip and adsorption onto the viewing window cavity membrane. This design not only ensures the filter tip's suction resistance and filtration effect but also enhances the user's visual and sensory experience during use.

[0036] Furthermore, the particles of this invention also possess a moisturizing effect. When the mainstream smoke enters the oral cavity after passing through the particles, it stimulates the secretion of saliva, increasing the moisturizing sensation. This moisturizing effect not only enhances the user's smoking experience but also effectively alleviates the problem of dry mouth. By adding particles with a moisturizing effect, the cigarette filter not only provides filtering functionality but also offers users a more comfortable and pleasant user experience.

[0037] In summary, the particles of this invention improve the appearance of cigarettes by modifying the filter tip with a specific color; they prevent particle aggregation and adsorption through a weak electrostatic adsorption effect, reducing the impact on draw resistance and enhancing aesthetics; and they improve the user's smoking experience through a moisturizing effect. These characteristics work together to provide a completely new approach and solution for cigarette filter tip design. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of a cigarette containing a ternary cavity window with particles, according to the present invention.

[0039] Figure 2 These are photographs of the actual particles from Examples 1, 4, and 7.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Tobacco section; 2. Filter section; 3. Particles; 4. Viewing window section; 5. Acetate fiber section. Detailed Implementation

[0042] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and should not be construed as limiting the technical solution of the present invention.

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Reagents not specifically described in detail herein are all conventional reagents and are commercially available; methods not specifically described in detail are all conventional experimental methods and can be obtained from the prior art.

[0044] Example 1

[0045] A method for preparing particles with a specific color and possessing both moisturizing and weak electrostatic adsorption effects mainly includes five steps:

[0046] Step (1): Use inorganic material quartz powder and adopt melt granulation process to melt the quartz powder at high temperature and then prepare the particles. After the particles are cooled, they are screened to screen particles with a particle size distribution between 16-20 mesh, and transparent basic particles are obtained.

[0047] Step (2): Select the particles from step (1) as the base particles and perform coloring treatment using a coating process. First, prepare the coating solution. Prepare the coating solution solvent according to a water-to-alcohol mass ratio of 9:1. Add HPMC and food-grade blue pigment to the solvent according to a total content of 8wt% HPMC and 4wt‰ pigment, and stir at room temperature for 6 hours. Note that HPMC should not be added to the solvent all at once to avoid agglomeration, which would affect the dissolution effect. After stirring, set aside.

[0048] Next, the basic particles obtained in step (1) were treated with a coating pan using a spray coating process to increase their weight by 2 wt%. After coating, the particles were collected after continuous blowing for 10 minutes.

[0049] Step (3) involves coating the particles from step (2) to treat them with antistatic agents. The first step is to prepare the coating solution by adding PVA to water and stirring it in a 90°C water bath for 4 hours. After the PVA is completely dissolved, heating is stopped, and the mixture is cooled while stirring. Once the temperature has dropped to room temperature, it is ready for use.

[0050] Next, a spray coating process was used to coat the granules obtained in step (2) with a coating pan at a ratio of 6 wt‰ to increase their weight.

[0051] After step (3) is completed, the granules are dried according to the drying conditions in step (5). After drying, the granules are packed into containers as shown in the image. Figure 1 The three-dimensional cavity window filter rod shown is used for smoking evaluation in cigarettes.

[0052] Example 2

[0053] The preparation process in this embodiment is the same as that in embodiment 1, except that the weight gain of the antistatic coating in step (3) of this embodiment is 4wt‰.

[0054] Example 3

[0055] The preparation process in this embodiment is the same as that in embodiment 1, except that the weight gain of the antistatic coating in step (3) of this embodiment is 8wt‰.

[0056] Example 4

[0057] The preparation process in this embodiment is the same as that in embodiment 1. The difference is that the weight gain of the antistatic coating in step (3) of this embodiment is 6wt‰. After the antistatic treatment is completed, the particles need to be moisturized in step (4).

[0058] The first step is to prepare the coating solution. Weigh a certain amount of citric acid and stir it mechanically at room temperature for a certain period of time until there is no solid residue, so as to obtain a citric acid aqueous solution with a solid content of 2wt%. Then stop stirring and set aside for later use.

[0059] Next, the particles obtained in step (3) are processed according to the coating weight gain of 5wt‰, and after processing, the particles are dried according to the conditions in step (5).

[0060] Example 5

[0061] The preparation process in this embodiment is the same as that in embodiment 4, except that the weight gain of the coating in step (4) of this embodiment is 3wt‰.

[0062] Example 6

[0063] The preparation process in this embodiment is the same as that in embodiment 4, except that the weight gain of the coating in step (4) of this embodiment is 7wt‰.

[0064] Example 7

[0065] The preparation process in this embodiment is the same as that in embodiment 4. The difference is that in this embodiment, the citric acid coating solution in step (4) and the antistatic coating solution in step (3) are mixed and coated according to the antistatic coating weight gain of 6wt‰ and the citric acid weight gain of 5wt‰.

[0066] Table 1. Evaluation of particle electrostatic adsorption effect, moisturizing effect and appearance

[0067]

[0068] Based on the evaluation results in Table 1 and Figure 2 The particle images are used to comprehensively evaluate the particles from three aspects: appearance, electrostatic effect, and wettability. The relevant properties of the particles prepared in Example 4 meet the requirements.

[0069] This invention provides a method for preparing granules with specific colors, moisturizing effects, and weak electrostatic adsorption effects, and their application in cigarette filter rods. Through a multi-step coating process, the color modification, antistatic treatment, and moisturizing effects of the granules are achieved, improving the aesthetics and performance of the filter rod, and possessing significant application value.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for preparing particles with specific functions, characterized in that, Includes the following steps: S1. Preparation of basic particles; S2. A specific color is given to the base particles using a set process; S3. Apply anti-static treatment to the colored granules; S4, imparts a moisturizing effect to the particles; S5. Drying yields particles with a specific color and possessing moisturizing and electrostatic effects.

2. The method for preparing particles with specific functions according to claim 1, characterized in that, The basic particles are made of two types of materials: organic materials and inorganic non-metallic materials.

3. The method for preparing particles with specific functions according to claim 2, characterized in that, The organic materials include natural organic materials and / or synthetic organic materials, and the inorganic non-metallic materials include single-component and / or multi-component inorganic non-metallic materials.

4. The method for preparing particles with specific functions according to claim 1, characterized in that, The preparation process of the basic particles includes, but is not limited to, one or more of the following processes combined: melt granulation, extrusion granulation, and spheronization granulation.

5. The method for preparing particles with specific functions according to claim 1, characterized in that, The process of giving base particles a specific color using a set process is called coating process. The coating process includes, but is not limited to, one or more of the following: spray coating, dip coating, and dry pressing coating.

6. The method for preparing particles with specific functions according to claim 1, characterized in that, The coating solution is a water-soluble coating solution, composed of deionized water or a mixture of water and alcohol, water-soluble polymers, and pigments.

7. The method for preparing particles with specific functions according to claim 1, characterized in that, The antistatic treatment in step S3 adopts a coating process, and the coating solution used in the coating process is composed of a high molecular weight polymer with hydrophilicity and film-forming transparency and water.

8. The method for preparing particles with specific functions according to claim 1, characterized in that, The moisturizing effect on the particles in step S4 is achieved by a coating process, wherein the coating solution used in the coating process consists of an acidulant and water.

9. The method for preparing particles with specific functions according to claim 8, characterized in that, The acidulant includes one or more of malic acid, potassium malate, citric acid, and potassium citrate.

10. The method for preparing particles with specific functions according to claim 1, characterized in that, The drying temperature in step S5 is 50℃-70℃, and the drying time is 6-8h.

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