Deodorizing powder and preparation method and application thereof

Abstract

The present application relates to a kind of deodorizing powder and its preparation method and application.The present application provides a kind of deodorizing powder, the deodorizing powder includes A component and B component, A component includes sodium bicarbonate, hydrated silicon dioxide, deodorant and essence, B component includes sodium percarbonate, anti-caking agent, binder and dispersing agent.The deodorizing powder is used in combination with the object to be deodorized, by the synergies between the components in deodorizing powder, and physical masking and chemical reaction are combined to deodorize together, can effectively remove the odor generated by the object to be deodorized, while being able to solve the problem that the object to be deodorized adheres to utensil and is not easy to clean.

Description

Technical Field

[0001] This invention relates to the field of daily chemical products technology, specifically to a deodorizing powder, its preparation method, and its application. Background Technology

[0002] With social progress and the continuous development of civilization, people's living standards are constantly improving, and their demands for deodorizing products are also increasing. In particular, more and more families are now keeping pets such as cats and dogs. While pets add a lot of joy to people's daily lives, the foul odor produced by pet excrement also causes a lot of trouble for every pet lover. Pet excrement breeds a large number of bacteria, and the decomposition of pet excrement by microorganisms produces harmful gases such as ammonia and hydrogen sulfide, thus endangering the health of both pets and their owners.

[0003] Existing deodorizing products cannot effectively remove the odor from the object to be deodorized, and the object tends to stick to the inner wall of the container holding it. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one object of this invention is to provide a deodorizing powder that can effectively remove odors from the object to be deodorized during use, while also solving the problem of the object being difficult to clean when it adheres to the container.

[0005] Therefore, the first aspect of the present invention provides a deodorizing powder. According to an embodiment of the present invention, the deodorizing powder includes component A and component B. Component A includes sodium bicarbonate, hydrated silica, deodorant and fragrance, and component B includes sodium percarbonate, anti-caking agent, binder and dispersant.

[0006] According to the deodorizing powder of the above embodiments of the present invention, during use, sodium bicarbonate can effectively and quickly react with the object to be deodorized, reducing the amount of clumping. Simultaneously, it allows the moisture in the clumped object to be deodorized to be quickly transferred to the sodium bicarbonate, reducing the moisture content and providing an alkaline environment to the object, thereby inhibiting mold and bacterial growth. Sodium bicarbonate also has bactericidal and uric acid-neutralizing effects, suppressing the odor of urine. Hydrated silica can effectively reduce the sticking of the object to the bottom, facilitating the cleaning of the container. The fragrance masks the odor of feces while also reacting with and decomposing the odor-causing agents, further improving deodorization efficiency. The deodorant can chemically react with odor-causing factors to form new odorless substances, improving deodorization efficiency. The sodium percarbonate loading formed by sodium percarbonate, anti-caking agent, binder, and dispersant can release active oxygen after absorbing moisture, sterilizing and deodorizing the environment of the object to be deodorized, further improving deodorization efficiency. Therefore, the deodorizing powder of the present invention, through the synergistic effect between the components in the deodorizing powder, and the combination of physical masking and chemical reaction, can effectively remove the odor from the object to be deodorized, and at the same time solve the problem of the object to be deodorized adhering to the container and being difficult to clean.

[0007] In addition, the deodorizing powder according to the above embodiments of the present invention may also have the following additional technical features:

[0008] In some embodiments of the present invention, the mixture of anti-caking agent, binder, and dispersant in component B coats the sodium percarbonate. This facilitates the formation of a stable sodium percarbonate composite material, thereby improving the deodorizing performance of the deodorizing powder.

[0009] In some embodiments of the present invention, the mass fractions of each component in component A are: 90-95 parts sodium bicarbonate, 1-5 parts hydrated silica, 1-5 parts deodorizer, and 1-2 parts fragrance. This improves the deodorizing and sterilizing effects of the deodorizing powder.

[0010] In some embodiments of the present invention, the mass fractions of each component in component B are: 40-50 parts sodium percarbonate, 10-25 parts anti-caking agent, 5-25 parts binder, and 1-5 parts dispersant. This improves the stability and efficiency of sodium percarbonate, thereby enhancing the bactericidal and deodorizing performance of the deodorizing powder.

[0011] In some embodiments of the present invention, the mass ratio of component A to component B is (5-9):1. Therefore, when component A and component B are mixed within the above-mentioned ratio range, the deodorizing effect of the deodorizing powder can be improved.

[0012] In some embodiments of the present invention, the hydrated silica has a particle size of 80-120 mesh. Therefore, within this particle size range, the hydrated silica has excellent water absorption properties, which can effectively reduce the adhesion of the substance to be deodorized to the container walls and facilitate container cleaning.

[0013] In some embodiments of the present invention, the deodorizing agent is copper sulfate pentahydrate. This improves the deodorizing effect of the deodorizing powder.

[0014] In some embodiments of the present invention, the anti-caking agent comprises silicon dioxide. This prevents the agglomeration of sodium percarbonate, improves the stability of sodium percarbonate, and simultaneously enhances the deodorizing performance of the deodorizing powder.

[0015] In some embodiments of the present invention, the silica has a particle size of 100-300 mesh, which improves the stability of sodium percarbonate and thus improves the deodorizing efficiency of the deodorizing powder.

[0016] In some embodiments of the present invention, the binder comprises polymethyl methacrylate. This improves the stability of sodium percarbonate, thereby increasing the deodorizing efficiency of the deodorizing powder.

[0017] In some embodiments of the present invention, the dispersant comprises sodium polyacrylate. This allows sodium percarbonate to be uniformly suspended in the encapsulation liquid, thereby further improving the stability of sodium percarbonate and also enhancing the deodorizing performance of the deodorizing powder.

[0018] A second aspect of this invention provides a method for preparing deodorizing powder. According to an embodiment of the invention, the method includes: mixing sodium bicarbonate and hydrated silica, then adding fragrance and deodorant to obtain component A; mixing an anti-caking agent, a binder, a dispersant, and an organic solvent to form a shell precursor liquid; adding sodium percarbonate to the shell precursor liquid and reacting, followed by freeze-drying to obtain component B; and mixing component A and component B to obtain the deodorizing powder. Using this method, the aforementioned deodorizing powder can be prepared quickly and effectively, and the steps are simple, easy to operate and control, require no special equipment, and are easy to scale up for production.

[0019] In addition, the method for preparing deodorizing powder according to the above embodiments of the present invention may also have the following additional technical features:

[0020] In some embodiments of the present invention, the organic solvent includes at least one of isopropanol and methanol. This improves the stability of the sodium percarbonate composite nanomaterial, thereby enhancing the deodorizing performance of the deodorizing powder.

[0021] In some embodiments of the present invention, the reaction time is 60-100 minutes. This improves the stability of the sodium percarbonate composite material, thereby enhancing the deodorizing performance of the deodorizing powder.

[0022] A third aspect of this invention provides a deodorization method using the above-described deodorizing powder or a deodorizing powder prepared by the above method. According to embodiments of this invention, the use of this deodorizing powder can effectively remove odors from the object to be deodorized.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 A schematic flowchart of a method for preparing deodorizing powder according to an embodiment of the present invention is shown;

[0026] Figure 2 The image shows the situation where the deodorizing powder of Embodiment 1 of the present invention sticks to the wall during use;

[0027] Figure 3 Images showing the adhesion of the deodorizing powder used in this invention to the wall during application;

[0028] Figure 4 The image shows the situation where the object to be deodorized sticks to the wall during use without adding deodorizing powder according to the present invention. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0031] With social progress and the continuous development of civilization, people's living standards are constantly improving, and their demands for deodorizing products are also increasing. In particular, more and more families are now keeping pets such as cats and dogs. While pets add a lot of joy to people's daily lives, the foul odor produced by pet excrement also causes a lot of trouble for every pet lover. Pet excrement breeds a large number of bacteria, and the decomposition of pet excrement by microorganisms produces harmful gases such as ammonia and hydrogen sulfide, thus endangering the health of both pets and their owners.

[0032] In view of this, in one aspect of the present invention, the present invention provides a deodorizing powder. According to an embodiment of the present invention, the deodorizing powder includes component A and component B. Component A includes sodium bicarbonate, hydrated silica, deodorant and fragrance, and component B includes sodium percarbonate, anti-caking agent, binder and dispersant.

[0033] The inventors discovered that during use, the sodium bicarbonate in the deodorizing powder can effectively and quickly react with the object to be deodorized, reducing the amount of clumping. This allows the moisture in the clumped object to be quickly transferred to the sodium bicarbonate, reducing its moisture content and providing an alkaline environment that inhibits mold and bacterial growth. Simultaneously, sodium bicarbonate has bactericidal and uric acid-neutralizing effects, suppressing the odor of urine. Hydrated silica effectively reduces the sticking of the object to the bottom through physical adsorption, facilitating container cleaning. The fragrance masks fecal odor while also reacting with and decomposing odor-causing agents, further improving deodorization efficiency. The added deodorant reacts chemically with odor-causing agents to form new odorless substances, further enhancing deodorization efficiency. The sodium percarbonate-loaded material, formed by sodium percarbonate, anti-caking agent, binder, and dispersant, can be stored stably at room temperature and easily dissolves and releases sodium percarbonate upon contact with the object to be deodorized. The sodium percarbonate absorbs moisture and releases active oxygen for sterilization and disinfection, further improving deodorization efficiency. Therefore, through the synergistic effect between the components in the deodorizing powder, and the combination of physical masking and chemical reaction to deodorize, it can effectively remove the odor produced by the object to be deodorized, and at the same time solve the problem of the object to be deodorized adhering to the container and being difficult to clean.

[0034] In some embodiments of the present invention, the mixture of anti-caking agent, binder, and dispersant in component B coats the sodium percarbonate. Sodium percarbonate is a widely used chemical in household and industrial cleaning products such as bleaching agents, cleaning agents, and disinfectants; however, due to its susceptibility to hydrolysis and oxygen release, sodium percarbonate is difficult to store stably at room temperature. Therefore, in this invention, a polymer encapsulation material is used to encapsulate the sodium percarbonate to prevent it from deteriorating and becoming ineffective, thereby improving its stability and efficiency.

[0035] It should be noted that the anti-caking agent absorbs excess moisture using its own water-absorbing capacity and then adheres to the surface of the particulate matter, thus giving it a certain degree of hydrophobicity and preventing the particulate matter from solidifying. The binder and the molecules to be coated adsorb each other at the interface, creating an adhesive effect, thereby ensuring the stability of the bonded object. The dispersant can adsorb onto the surface of solid particles, making the surface of the aggregated solid particles easier to wet, increasing the suspension performance of the object, and preventing sedimentation. Therefore, by using an anti-caking agent, binder, and dispersant to form a polymer shell that coats the surface of sodium percarbonate particles, the sodium percarbonate and the polymer shell can form a core-shell structure, thereby increasing the stability of sodium percarbonate and improving the deodorizing and bactericidal performance of the deodorizing powder.

[0036] In some embodiments of the present invention, the mass fractions of each component in component A are: 90-95 parts sodium bicarbonate, 1-5 parts hydrated silica, 1-5 parts deodorant, and 1-2 parts fragrance. For example, the mass fractions of sodium bicarbonate can be 91-94, 92-93, etc., the mass fractions of hydrated silica can be 1-4, 2-4, 2-3, etc., the mass fractions of deodorant can be 1-4, 1-3, 1-2, etc., and the mass fractions of fragrance can be 1 or 2, etc., thereby further ensuring that the deodorizing powder provided by the present invention has a better deodorizing effect.

[0037] In some embodiments of the present invention, the mass fractions of each component in component B are as follows: 40-50 parts sodium percarbonate, 10-25 parts anti-caking agent, 5-25 parts binder, and 1-5 parts dispersant. For example, the mass fractions of sodium percarbonate are 41-49, 42-48, 43-47, 44-46, etc.; the mass fractions of anti-caking agent are 11-24, 12-23, 13-22, 16-20, etc.; the mass fractions of binder are 6-23, 7-20, 10-18, 12-16, etc.; and the mass fractions of dispersant are 1-4, 1-3, 1-2, etc. Thus, within the above-mentioned mass fraction ranges of each component, the stability of sodium percarbonate can be improved, thereby further improving the deodorizing effect of the deodorizing powder.

[0038] In some embodiments of the present invention, the mass ratio of component A to component B is (5-9):1, for example, it can be 5:1, 6:1, 7:1, 8:1, 9:1, etc. When the content of component A is too low, the content of sodium bicarbonate, hydrated silica, deodorizer, and fragrance will also decrease accordingly, thereby reducing the deodorizing effect of component A. In addition, due to the reduction of component A, the deodorizing powder may also cause the object to stick to the wall and be difficult to clean when used with the object to be deodorized. However, when the content of component A is too high, the content of component B will decrease, reducing the deodorizing and bactericidal effect of the deodorizing powder. Therefore, in the embodiments of the present invention, the deodorizing effect of the deodorizing powder is best when the mass ratio of component A to component B is in the range of (5-9):1, preferably 9:1.

[0039] In some embodiments of the present invention, the hydrated silica has a particle size of 80-120 mesh, for example, 85-115 mesh, 90-110 mesh, 95-105 mesh, etc. Hydrated silica, due to its surface containing numerous hydroxyl groups, readily absorbs water and aggregates into fine particles. Hydrated silica appears as a white powder or granules, and its chemical formula is generally written as SiO2·nH2O. Due to its porosity and large specific surface area, it exhibits significant dispersing power. Therefore, in embodiments of the present invention, the addition of hydrated silica effectively reduces the sticking of the deodorizing substance to the bottom, facilitating the cleaning of containers holding the deodorizing substance.

[0040] In some embodiments of this invention, the deodorizing agent includes copper sulfate pentahydrate. When copper sulfate crystallizes from an aqueous solution, it forms blue copper sulfate pentahydrate (CuSO4·5H2O, also known as chalcanthite). Chalcanthite can combine with proteins to form insoluble protein compounds that precipitate, thus possessing bactericidal and deodorizing properties. Therefore, copper sulfate pentahydrate can chemically react with odor-causing agents to form new odorless substances, thereby removing the odor from the object to be deodorized. Thus, using the above-mentioned deodorizing agent can improve the deodorizing effect of the deodorizing powder.

[0041] In some embodiments of the present invention, the fragrance is a patented fragrance composed of phenyl glycidyl ester and 1,2-dione in a certain proportion. Therefore, this fragrance can reduce the intensity of common odors (containing sulfur and amines) and enhance the aroma by chemically reacting with them. Thus, using the above-mentioned fragrance can improve the deodorizing effect of the deodorizing powder.

[0042] In some embodiments of the present invention, the anti-caking agent comprises silica. Silica has a precise particle size distribution, a large specific surface area, and strong adsorption capacity, which can prevent the clumping of items due to moisture absorption and pressure, keeping them loose. Therefore, silica can prevent clumping of the product before use, allowing the deodorizer to come into more thorough contact with the object to be deodorized, resulting in better deodorization.

[0043] In some embodiments of the present invention, the silica has a particle size of 100-300 mesh. For example, it can be 110-280 mesh, 150-260 mesh, 180-230 mesh, etc. Within the above particle size range, silica has a large specific surface area, which can enhance the adsorption capacity of the deodorizing powder, thereby optimizing the deodorizing effect of the deodorizing powder.

[0044] In some embodiments of the present invention, the adhesive comprises polymethyl acrylate (PMMA). PMMA is a thermoplastic linear polymer with stable properties and is commonly used in the formulation of solvent-based adhesives. This improves the stability of the sodium percarbonate coating and optimizes the deodorizing effect of the deodorizing powder.

[0045] In some embodiments of the present invention, the dispersant comprises sodium polyacrylate. For solid particles to exist stably in the system, they need to overcome gravity; otherwise, they will precipitate or separate into layers. Sodium polyacrylate, as a dispersant, allows sodium percarbonate to be uniformly suspended in the encapsulation liquid, thereby improving the stability of the sodium percarbonate encapsulation and optimizing the deodorizing effect of the deodorizing powder.

[0046] In another aspect, the present invention provides a method for preparing the above-mentioned deodorizing powder. For example... Figure 1 As shown, according to an embodiment of the present invention, the method includes:

[0047] S100: Sodium bicarbonate and hydrated silica are mixed, and then fragrance and deodorant are added to obtain component A.

[0048] In some embodiments of the present invention, 90-95 parts by weight of sodium bicarbonate and 1-5 parts by weight of hydrated silica are first stirred and mixed evenly in a container. Then, 1-5 parts by weight of deodorant and 1-2 parts by weight of fragrance are added to the container in sequence and stirred and mixed evenly to obtain component A.

[0049] It should be noted that there are no special limitations on the mixing method. In some embodiments of the present invention, a mechanical stirring method can be used, in which the powder material is placed in a mixer and mixed evenly by mechanical force.

[0050] S200: A precursor liquid formed by mixing anti-caking agents, binders, dispersants and organic solvents to form a shell.

[0051] In some embodiments of the present invention, an appropriate amount of organic solvent is first added to a container, and then 10-25 parts by weight of silica, 5-25 parts by weight of polymethyl acrylate and 1-5 parts by weight of sodium polyacrylate are added to the container and stirred evenly to obtain the shell precursor liquid.

[0052] According to embodiments of the present invention, the organic solvent includes at least one of isopropanol and methanol. Isopropanol can replace ethanol as a solvent in many cases and is a good solvent and chemical raw material; methanol is generally a better solvent than ethanol and can dissolve many inorganic salts. Therefore, the selection of the above-mentioned organic solvent can promote better mixing of silica, sodium polyacrylate, and polymethyl acrylate, which helps to form a homogeneous and stable shell precursor fluid.

[0053] S300: Sodium percarbonate is added to the precursor liquid of the shell and reacted, then freeze-dried to obtain component B.

[0054] In some embodiments of the present invention, 40-50 parts by weight of sodium percarbonate are added to the shell precursor liquid in step S10, and after mixing and reacting for 60-100 minutes, the mixture is freeze-dried into powder to obtain component B, namely sodium percarbonate composite material.

[0055] It should be noted that the method of freeze-drying into powder is not particularly limited. In some embodiments of the present invention, a vacuum freeze dryer is used to freeze-dry the mixture. Because drying is carried out in a frozen state, the volume remains almost unchanged, maintaining the original structure and preventing concentration. The dried substance dissolves rapidly and completely upon addition of water, almost immediately restoring its original properties. Furthermore, since drying is carried out under vacuum with very little oxygen, sodium percarbonate is protected from oxidation.

[0056] It is understood that the present invention does not restrict the order of preparation of component A and component B. A can be prepared first and then B, that is, step S100 can be performed first and then steps S200 and S300. Alternatively, B can be prepared first and then A, that is, steps S200 and S300 can be performed first and then step S100.

[0057] S400: Mix component A and component B to obtain deodorizing powder.

[0058] In some embodiments of the present invention, component A and component B are mixed evenly in a mass ratio of (5-9):1 to obtain the deodorizing powder of the present invention. It should be noted that in the embodiments of the present invention, both component A and component B are in powder form, and the mixing method is not particularly limited. As long as component A and component B can be mixed evenly, it falls within the inventive concept of the present invention.

[0059] Therefore, the deodorizing powder prepared by this method contains polymer-encapsulated sodium percarbonate. This deodorizing powder can be stored stably at room temperature and easily dissolves and releases sodium percarbonate when it comes into contact with the substance to be deodorized. The sodium percarbonate absorbs moisture and releases active oxygen for sterilization and disinfection, thereby improving the deodorizing efficiency of the deodorizing powder. In addition, this method can quickly and effectively prepare the aforementioned deodorizing powder, and the steps are simple, easy to operate and control, have no special requirements for equipment, and are easy to achieve large-scale production.

[0060] In another aspect, the present invention provides a deodorization method using the aforementioned deodorizing powder or deodorizing powder prepared by the aforementioned method. Specifically, when the object to be deodorized is dry, a certain amount of water needs to be added after adding the deodorizing powder to keep the object moist, ensuring that the sodium percarbonate composite material in the deodorizing powder can contact the water and release active oxygen, thereby improving the deodorizing effect of the deodorizing powder. When the object to be deodorized is moist, such as cat litter, the deodorizing powder can be used directly with the cat litter. During use, the cat's urine can contact the sodium percarbonate composite material, thereby promoting the release of active oxygen from the sodium percarbonate, thus improving the deodorizing and bactericidal effect of the deodorizing powder. According to embodiments of the present invention, through the use of this deodorizing powder, the synergistic effect between the components in the deodorizing powder, as well as the combination of physical masking and chemical reaction to deodorize, can effectively remove the odor from the object to be deodorized.

[0061] The present disclosure will be explained below with reference to embodiments. Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the disclosure. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the art or according to the product instructions. Reagents or instruments whose manufacturers are not specified are all conventional products that can be obtained commercially.

[0062] Example 1

[0063] (1) First, mix 95 parts of sodium bicarbonate and 5 parts of hydrated silicon dioxide evenly in a container, then add 1 part of fragrance and 1 part of copper sulfate pentahydrate to the container to obtain component A;

[0064] (2) Mix 30 parts of silica, 5 parts of sodium polyacrylate and 20 parts of polymethyl acrylate evenly in an organic solvent to form a shell precursor liquid;

[0065] (3) Add 45 parts of sodium percarbonate to the precursor liquid of the shell, mix and react for 90 min, then freeze dry into powder to obtain component B;

[0066] (4) Mix component A and component B evenly at a mass ratio of 9:1 to obtain deodorizing powder.

[0067] The deodorizing powders of Examples 2-6 and Comparative Examples 1-9 are the same as those of Example 1, except for the different parameters (see Table 1).

[0068] The composition of the deodorizing powder in Examples 1-6 and Comparative Examples 1-9 of this application is shown in Table 1.

[0069] Table 1

[0070]

[0071] Test data

[0072] Eight cats of similar size were selected. Odor-removing powder was applied to the bottom of the litter box at a ratio of 8% (approximately 0.1cm). Then, a layer of litter about 2.5cm thick was added, followed by another layer of odor-removing powder. Each litter box used 200g of odor-removing powder and 2.5kg of litter. The treatment lasted for three days, with the odor removal effect tested daily. The intensity of the odor was scored from 1 to 5 points, with higher scores for stronger smells. The average of the results from each participant was taken. In a 500mL beaker, 10g of odor-removing powder was placed at the bottom, followed by 100g of litter. 20g of water was added to the litter. After standing for 10 minutes, the beaker was inverted to observe litter clumping and whether it stuck to the bottom. The weight of the unclumped litter was also measured. The above tests were conducted using the deodorizing powders from Examples 1-12, the deodorizing powders from Comparative Examples 1-6, the deodorizing powders from competing products, and cat litter without deodorizing powder (blank control). The specific test results are shown in Table 2.

[0073] Table 2

[0074]

[0075]

[0076] As shown in Table 2, the deodorizing powders prepared in Examples 1-12 achieved deodorization time scores between 6.5 and 9 during use, which are lower than those of Comparative Examples 1-6, competing deodorizing powders, and cat litter without deodorizing powder. This indicates that the deodorizing powder prepared in this invention has excellent deodorizing effects. Furthermore, the weight of unclumped cat litter prepared in Examples 1-12 was between 68 and 75.1g during use, while the weight of unclumped cat litter in Comparative Examples 1-6, competing deodorizing powders, and cat litter without deodorizing powder was between 60 and 67.83g. This demonstrates that the deodorizing powder provided in this invention can reduce the amount of cat litter clumping, thereby reducing the frequency of cat litter replacement.

[0077] In addition, by comparing the images of cat litter sticking to the bottom in Example 1, the competing deodorizing powder, and the blank control, as shown... Figure 2The images shown depict the cat litter sticking to the bottom of the container during use of the deodorizing powder of Example 1. As can be seen from the images, the cat litter did not stick to the bottom during use of the deodorizing powder provided by this invention. Figure 3 and Figure 4 Images show both the use of a competitor's deodorizing powder with cat litter and cat litter without the deodorizing powder. The images reveal severe sticking to the bottom of the litter, indicating that the deodorizing powder provided by this invention, when used with cat litter, not only effectively removes odors during litter use but also solves the problem of cat litter and feces sticking to the bottom and being difficult to clean.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," "some implementations," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A deodorizing powder, characterized in that, The deodorizing powder includes: Component A includes sodium bicarbonate, hydrated silica, deodorant, and fragrance; and, Component B includes sodium percarbonate, anti-caking agent, binder, and dispersant. In component B, a mixture of anti-caking agent, binder, and dispersant coats the sodium percarbonate. In component B, the mass fractions of each component are: 40-50 parts sodium percarbonate, 10-25 parts anti-caking agent, 5-25 parts binder, and 1-5 parts dispersant. The anti-caking agent includes silicon dioxide; The adhesive includes polymethyl methacrylate; The dispersant includes sodium polyacrylate.

2. The deodorizing powder according to claim 1, characterized in that, In component A, the mass fractions of each component are: 90-95 parts sodium bicarbonate, 1-5 parts hydrated silica, 1-5 parts deodorant, and 1-2 parts fragrance.

3. The deodorizing powder according to claim 1, characterized in that, The mass ratio of component A to component B is (5-9):

1.

4. The deodorizing powder according to claim 1 or 2, characterized in that, The hydrated silica has a particle size of 80-120 mesh.

5. The deodorizing powder according to claim 1 or 2, characterized in that, The deodorant includes copper sulfate pentahydrate.

6. The deodorizing powder according to claim 1, characterized in that, The silica has a particle size of 100-300 mesh.

7. A method for preparing the deodorizing powder according to any one of claims 1-6, characterized in that, include: Sodium bicarbonate and hydrated silica are mixed, and then fragrance and deodorant are added to obtain component A; Anti-caking agents, binders, dispersants, and organic solvents are mixed to form a shell precursor liquid; Sodium percarbonate was added to the precursor liquid of the shell and reacted, followed by lyophilization to obtain component B; Mixing components A and B yields deodorizing powder.

8. The method according to claim 7, characterized in that, The organic solvent includes at least one of isopropanol and methanol.

9. The method according to claim 7, characterized in that, The reaction time for adding sodium percarbonate to the precursor liquid of the shell is 60 min-100 min.

10. A deodorization method, characterized in that, Deodorization is achieved by using the deodorizing powder according to any one of claims 1-6 or the deodorizing powder prepared by any one of claims 7-9.

Images