Antibacterial and deodorant cat litter and preparation process thereof

Abstract

The invention discloses an antibacterial and deodorant cat litter and a preparation process, and relates to the technical field of pet supplies, the antibacterial and deodorant cat litter comprises activated carbon, zeolite, soybean curb residue, corn starch, deodorant compound bacteria powder, citric acid, sodium polyacrylate, a urine sugar indication cat litter additive, tea residue, chitosan and pregelatinized starch, the cat litter is made of natural mineral materials such as activated carbon and zeolite, has moisture absorption and air permeability, and effectively adsorbs moisture and peculiar smell in cat urine and excrement. Deodorizing compound bacterium powder is added, and microorganisms including bacillus, lactic acid bacteria, saccharomycetes and the like are used for decomposing organic matters and eliminating peculiar smell. The urine sugar indicating additive is contained, so that the cat urine sugar can be rapidly detected, and the cat health problem can be easily found. The tea residues and the chitosan are used as natural antibacterial substances, so that the growth of bacteria is inhibited. And the pre-gelatinized starch reduces dust and improves the water absorption and the caking effect. The product has efficient antibacterial and deodorizing functions, can monitor the health of cats, is antibacterial and dustproof, and improves the market competitiveness.

Description

Technical Field

[0001] The invention relates to the technical field of pet products, and in particular to an antibacterial and deodorizing cat litter and a preparation process thereof. Background Art

[0002] Cat litter is a pet product with very high consumption in foreign countries. It is a common necessity for most families with pet cats. In addition, cat litter is used in pet shops, pet cat breeding farms, etc., and it occupies a pivotal position in the pet product manufacturing industry.

[0003] The most important progress in cat culture is the use of cat litter. Cat litters at home and abroad mainly include bentonite, montmorillonite and silica gel, which are generally made by mixing the above single ingredients with organic adhesives. At present, silica gel cat litter is commonly used, and some are made by mixing bentonite and organic base materials and organic adhesives. When cat feces or urine come into contact with cat litter, due to the hygroscopic effect of cat litter, the cat litter in contact with feces or urine forms a ball with feces or urine, while the cat litter not contaminated with feces or urine is not contaminated and can continue to be used, so cleaning the feces and urine of small animals becomes extremely easy, which also brings ease, pleasure and environmental protection to pet breeding.

[0004] With the continuous improvement of people's living standards, new requirements have been put forward for cat litter products, which not only require cat litter to absorb water and form agglomerates, but also require cat litter to have antibacterial and deodorizing functions. However, many cat litter products are prone to breed bacteria and produce odors after long-term use, which not only affects the health of pets, but also brings inconvenience to the lives of pet owners. Therefore, developing a cat litter product that has both water absorption and agglomeration functions and antibacterial and deodorizing effects has become an urgent problem to be solved in the current cat litter production field. To this end, we propose an antibacterial and deodorizing cat litter and a preparation process. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that many cat litter products are prone to breed bacteria and produce odor after long-term use, which not only affects the health of pets, but also brings inconvenience to the lives of pet owners. Therefore, developing a cat litter product that has both water absorption and agglomeration functions and antibacterial and deodorizing effects has become a problem that needs to be solved in the current cat litter production field. The present invention provides an antibacterial and deodorizing cat litter and a preparation process.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: The invention discloses an antibacterial and deodorizing cat litter, comprising the following raw materials in parts by weight: 50-60 parts of activated carbon, 50-60 parts of zeolite, 20-40 parts of bean curd dregs, 10-20 parts of corn starch, 5-8 parts of deodorizing composite bacterial powder, 2-3 parts of citric acid, 1-3 parts of sodium polyacrylate, 1-2 parts of urine sugar indicating cat litter additive, 5-8 parts of tea residues, 1-3 parts of chitosan and 2-4 parts of pregelatinized starch.

[0007] Furthermore, the antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 50 parts of activated carbon, 50 parts of zeolite, 20 parts of tofu dregs, 10 parts of corn starch, 5 parts of deodorizing composite bacterial powder, 2 parts of citric acid, 1 part of sodium polyacrylate, 1 part of urine sugar indicator cat litter additive, 5 parts of tea residues, 1 part of chitosan, and 2 parts of pregelatinized starch.

[0008] Furthermore, the antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 55 parts of activated carbon, 55 parts of zeolite, 30 parts of tofu dregs, 15 parts of corn starch, 6 parts of deodorizing composite bacterial powder, 2.5 parts of citric acid, 2 parts of sodium polyacrylate, 1.5 parts of urine sugar indicator cat litter additive, 7 parts of tea residues, 2 parts of chitosan, and 3 parts of pregelatinized starch.

[0009] Furthermore, the antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 60 parts of activated carbon, 60 parts of zeolite, 40 parts of tofu dregs, 20 parts of corn starch, 8 parts of deodorizing composite bacterial powder, 3 parts of citric acid, 3 parts of sodium polyacrylate, 2 parts of urine sugar indicator cat litter additive, 8 parts of tea residues, 3 parts of chitosan, and 4 parts of pregelatinized starch.

[0010] Furthermore, the deodorizing composite bacterial powder contains bacillus, lactic acid bacteria and yeast.

[0011] Furthermore, the urine sugar indicating cat litter additive uses a urine sugar indicator based on enzyme-linked immunosorbent assay.

[0012] A preparation process of antibacterial and deodorizing cat litter comprises the following steps: Step 1: 50-60 parts by weight of activated carbon, 50-60 parts by weight of zeolite and 20-40 parts of tofu residue are crushed into 0.5-1 mm size by a crusher for about 5-10 minutes, and then sieved by a sieving machine to remove the broken pieces and ensure the consistency of the particles; Step 2: The activated carbon particles, zeolite particles and tofu dregs particles prepared in step 1 are mixed uniformly in a mixer at a speed of 20-30 rpm to form a basic mixture, and the mixing time is about 10-15 minutes; Step 3: spraying a wetting agent mist onto the basic mixture prepared in step 2, wherein the amount of the mist is controlled to be 1-2% by weight of the basic mixture, and then spraying 9-19 parts of corn starch into the basic mixture, and granulating the mixture by a rotary granulator using a tumbling method, wherein the tumbling speed is about 10-15 revolutions per minute, ensuring that the corn starch is evenly adhered to the surface of the basic mixture particles, and the tumbling time is about 5-10 minutes, to prepare basic cat litter particles; Step 4: 5-8 portions of tea residue are pressed into granules by a tea granulator, and the granules have a size of 0.5-1 mm; Step 5: Spray the tea granules prepared in step 4 with urine sugar indicator cat litter additives at 0.5-1% of the weight of the granules, then spray wetting agent water mist, the amount of water mist is controlled at 1-2% of the weight of the tea granules, and then spray the remaining 1-2 parts of corn starch, and granulate by a rotary granulator using a tumbling method at a tumbling speed of about 10-15 revolutions per minute to ensure that the additives are evenly distributed on the surface of the granules, and the tumbling time is about 5-10 minutes to prepare sterilization color-developing granules; Step 6: Mix the basic cat litter particles prepared in step 3 and the sterilization color-developing particles prepared in step 5 in a mixer, add 5-8 parts of deodorizing composite bacterial powder, 2-3 parts of citric acid, 1-3 parts of sodium polyacrylate, 1-2 parts of urine sugar indicator cat litter additive, 1-3 parts of chitosan and 2-4 parts of pregelatinized starch during the mixing process, and mix them evenly in the mixer at a speed of 20-30 rpm for about 20-30 minutes; Step 7: Freeze the mixed cat litter prepared in step 6, with the freezing temperature controlled at -10 to -20 degrees Celsius for 1 to 2 hours to ensure that the water inside the cat litter particles freezes and enhances the structural stability of the cat litter particles; Step 8: Dry the frozen cat litter in an oven at a low temperature of 60-80°C until the moisture content of the cat litter particles drops below 5%. The drying time is about 2-4 hours. Step 9: Sieve the dried cat litter particles through a vibrating screen to remove particles that are too large or too small. The screen aperture is 2-4 mm to ensure the uniformity of the cat litter.

[0013] Furthermore, the preparation process also includes spraying the surface of the cat litter particles after screening in step nine, the spraying material is a microcapsule solution containing natural plant essential oil, the spraying amount is controlled at 0.5%-2% of the total mass of the cat litter particles, and the cat litter particles after spraying need to be naturally dried at room temperature.

[0014] Furthermore, the natural plant essential oil microcapsule solution is prepared by encapsulating the natural plant essential oil with a wall material, the wall material can be one of gelatin, gum arabic and sodium alginate, and the encapsulation process adopts an emulsification-crosslinking method or a spray drying method to ensure the stability and sustained release of the microcapsules.

[0015] The beneficial effects of the present invention are as follows: 1. The antibacterial and deodorizing cat litter of the present invention adopts natural mineral materials such as activated carbon and zeolite, which have moisture absorption and breathability, and can effectively absorb moisture and odor in cat urine and feces. Deodorizing composite bacterial powder is added, which contains microorganisms such as Bacillus, lactic acid bacteria and yeast to decompose organic matter and eliminate odor. It contains urine sugar indicator additives, which can quickly detect the sugar content in cat urine and help to find cat health problems. Tea residues and chitosan are natural antibacterial substances that inhibit bacterial growth. Pregelatinized starch reduces dust, improves water absorption and agglomeration effect. The product has high-efficiency antibacterial and deodorizing functions, monitors cat health, is antibacterial and dustproof, and enhances market competitiveness.

[0016] 2. During the preparation of the present invention, tea residues are pressed into particles as core materials. The urine sugar indicator cat litter additive is granulated by a rolling method, which not only gives the cat litter a natural tea fragrance and improves the use experience, but also provides a carrier for the urine sugar indicator cat litter additive, so that the urine sugar indicator cat litter additive is evenly distributed in the cat litter through tea particles, so that the cat litter can quickly change color when it comes into contact with pet urine, providing pet owners with intuitive cat health tips. The use of tea residues not only reduces waste emissions, but also realizes the recycling of resources, which is in line with modern environmental protection concepts.

[0017] 3. In the present invention, the cat litter particles are frozen before drying to allow the water in the tumbling process to crystallize, and then dried to form uniform pores on the outer layer of the cat litter particles. These pores not only enhance the hygroscopicity of the cat litter, allowing the cat litter to absorb and lock the pet's urine more quickly and reduce odor emission, but also further enhance the air permeability of the cat litter, which helps to maintain air circulation in the cat litter box and reduce bacterial growth. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below. Embodiment 1

[0019] The invention provides an antibacterial and deodorizing cat litter. The antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 50 parts of activated carbon, 50 parts of zeolite, 20 parts of bean curd dregs, 10 parts of corn starch, 5 parts of deodorizing composite bacterial powder, 2 parts of citric acid, 1 part of sodium polyacrylate, 1 part of urine sugar indicating cat litter additive, 5 parts of tea residues, 1 part of chitosan and 2 parts of pregelatinized starch.

[0020] In this embodiment, preferably, the deodorizing composite bacterial powder contains Bacillus, lactic acid bacteria and yeast.

[0021] In this embodiment, preferably, the urine sugar indicating cat litter additive uses a urine sugar indicator based on enzyme-linked immunosorbent assay. Embodiment 2

[0022] In the present embodiment, preferably, the antibacterial deodorizing cat litter comprises the following raw materials in parts by weight: 55 parts of activated carbon, 55 parts of zeolite, 30 parts of tofu dregs, 15 parts of corn starch, 6 parts of deodorizing composite bacterial powder, 2.5 parts of citric acid, 2 parts of sodium polyacrylate, 1.5 parts of urine sugar indicator cat litter additive, 7 parts of tea residues, 2 parts of chitosan, and 3 parts of pregelatinized starch.

[0023] The raw material ratio of this embodiment is improved, and the weight proportions of all components are increased, which may enhance the antibacterial and deodorizing properties of the cat litter and improve its hygroscopicity and agglomeration properties, but may also affect its durability and cost. Embodiment 3

[0024] In the present embodiment, preferably, the antibacterial deodorizing cat litter comprises the following raw materials in parts by weight: 60 parts of activated carbon, 60 parts of zeolite, 40 parts of tofu dregs, 20 parts of corn starch, 8 parts of deodorizing composite bacterial powder, 3 parts of citric acid, 3 parts of sodium polyacrylate, 2 parts of urine sugar indicator cat litter additive, 8 parts of tea residues, 3 parts of chitosan, and 4 parts of pregelatinized starch.

[0025] This embodiment further increases the weight of raw materials, especially key ingredients such as activated carbon, zeolite, bean curd residue and corn starch, which will significantly enhance the antibacterial and deodorizing effects of the cat litter, while also improving hygroscopicity, agglomeration and durability, but the cost may also increase accordingly.

[0026] By selecting natural mineral materials such as activated carbon and zeolite as the main raw materials, these materials have good hygroscopicity and air permeability, can effectively absorb moisture and odor in cat urine and feces, keep the cat litter box clean and dry, and reduce the environment for bacterial growth. By adding deodorizing composite bacterial powder, the microorganisms such as Bacillus, lactic acid bacteria and yeast contained in the bacterial powder can effectively decompose the organic matter in cat urine and feces, convert it into harmless substances, thereby fundamentally eliminating odors and keeping the cat litter box fresh. Urine sugar indicator cat litter additives are also added to the antibacterial deodorizing cat litter. This additive can quickly detect the sugar content in cat urine based on enzyme-linked immunosorbent assay, helping pet owners to promptly discover possible health problems of cats, such as diabetes, and provide strong protection for the health of cats. At the same time, tea residues and chitosan, as natural antibacterial substances, can achieve antibacterial effects by destroying bacterial cell walls or inhibiting bacterial growth, further improving the antibacterial properties of cat litter. The addition of pregelatinized starch can effectively prevent cat litter from generating too much dust during use, keeping the cat litter box clean and the cat healthy. At the same time, the water absorption and agglomeration effect of the cat litter are improved, so that the antibacterial and deodorizing cat litter of the present invention not only has efficient antibacterial and deodorizing functions, but also increases the monitoring function of the health status of cats, antibacterial properties and dust-proof properties by adding ingredients such as urine sugar indicator cat litter additives, tea residues, chitosan and pregelatinized starch, thereby further enhancing the technological sense and market competitiveness of the product.

[0027] Comparative Example 1: This comparative example provides a cat litter product with antibacterial and deodorizing functions, and its raw material composition and preparation process are basically consistent with the previously described embodiment one. However, the cat litter product in this comparative example does not add the composite bacterial powder with deodorizing function. In order to verify the actual effectiveness of the deodorizing composite bacterial powder in cat litter products, we conducted a comparative test, comparing the cat litter prepared in this comparative example with the cat litter prepared in Example 1 through laboratory colony counting method, odor test and practical application feedback. The test results show that the cat litter without the addition of deodorizing composite bacterial powder is significantly weaker in deodorizing effect than the cat litter with the addition of deodorizing composite bacterial powder in Example 1. The laboratory colony counting method shows that the cat litter of Example 1 performs well in inhibiting the growth of harmful bacteria, while the cat litter of this comparative example has a more serious bacterial growth. In the odor test, the odor of cat excrement using the cat litter of Example 1 was significantly reduced. In contrast, the deodorizing ability of the cat litter of this comparative example was greatly reduced. In addition, from the feedback of actual application, pet owners are more satisfied with the cat litter of Example 1. They generally reflect that the environment around the cat litter box is fresher and the health of cats has improved. This series of comparative test results fully proves the importance of deodorizing composite bacterial powder in cat litter products. It not only enhances the deodorizing function of cat litter, but also indirectly promotes the health of cats and improves the overall quality of the product.

[0028] A preparation process of antibacterial and deodorizing cat litter comprises the following steps: Step 1: 50-60 parts by weight of activated carbon, 50-60 parts by weight of zeolite and 20-40 parts of tofu residue are crushed into 0.5-1 mm size by a crusher for about 5-10 minutes, and then sieved by a sieving machine to remove the broken pieces and ensure the consistency of the particles; Step 2: The activated carbon particles, zeolite particles and tofu dregs particles prepared in step 1 are mixed uniformly in a mixer at a speed of 20-30 rpm to form a basic mixture, and the mixing time is about 10-15 minutes; Step 3: spraying a wetting agent mist onto the basic mixture prepared in step 2, wherein the amount of the mist is controlled to be 1-2% by weight of the basic mixture, and then spraying 9-19 parts of corn starch into the basic mixture, and granulating the mixture by a rotary granulator using a tumbling method, wherein the tumbling speed is about 10-15 revolutions per minute, ensuring that the corn starch is evenly adhered to the surface of the basic mixture particles, and the tumbling time is about 5-10 minutes, to prepare basic cat litter particles; Step 4: 5-8 portions of tea residue are pressed into granules by a tea granulator, and the granules have a size of 0.5-1 mm; Step 5: Spray the tea granules prepared in step 4 with urine sugar indicator cat litter additives at 0.5-1% of the weight of the granules, then spray wetting agent water mist, the amount of water mist is controlled at 1-2% of the weight of the tea granules, and then spray the remaining 1-2 parts of corn starch, and granulate by a rotary granulator using a tumbling method at a tumbling speed of about 10-15 revolutions per minute to ensure that the additives are evenly distributed on the surface of the granules, and the tumbling time is about 5-10 minutes to prepare sterilization color-developing granules; Step 6: Mix the basic cat litter particles prepared in step 3 and the sterilization color-developing particles prepared in step 5 in a mixer, add 5-8 parts of deodorizing composite bacterial powder, 2-3 parts of citric acid, 1-3 parts of sodium polyacrylate, 1-2 parts of urine sugar indicator cat litter additive, 1-3 parts of chitosan and 2-4 parts of pregelatinized starch during the mixing process, and mix them evenly in the mixer at a speed of 20-30 rpm for about 20-30 minutes; Step 7: Freeze the mixed cat litter prepared in step 6, with the freezing temperature controlled at -10 to -20 degrees Celsius for 1 to 2 hours to ensure that the water inside the cat litter particles freezes and enhances the structural stability of the cat litter particles; Step 8: Dry the frozen cat litter in an oven at a low temperature of 60-80°C until the moisture content of the cat litter particles drops below 5%. The drying time is about 2-4 hours. Step 9: Sieve the dried cat litter particles through a vibrating screen to remove particles that are too large or too small. The screen aperture is 2-4 mm to ensure the uniformity of the cat litter.

[0029] During the preparation, tea residues are pressed into granules as core materials. The tumbling method is used to granulate the urine sugar indicator cat litter additive, which not only gives the cat litter a natural tea fragrance and improves the use experience, but also provides a carrier for the urine sugar indicator cat litter additive, so that the urine sugar indicator cat litter additive is evenly distributed in the cat litter through the tea particles, so that the cat litter can quickly change color when it comes into contact with pet urine, providing pet owners with intuitive cat health tips. The use of tea residues not only reduces waste emissions, but also realizes the recycling of resources, which is in line with modern environmental protection concepts.

[0030] At the same time, both the basic cat litter particles and the tea residue particles are granulated by the rolling method. During the rolling process, the basic cat litter particles and the tea residue particles adhere to each other to form cat litter particles with multiple functions. This granulation method not only ensures the uniformity and stability of the cat litter particles, but also allows the natural ingredients in the tea residue to be evenly distributed in the cat litter, thereby enhancing the antibacterial and deodorizing effect of the cat litter. In addition, the rolling granulation method also improves the production efficiency of the cat litter and reduces the production cost, making this antibacterial and deodorizing cat litter more economical and easy to promote and use.

[0031] Then, before the cat litter particles are dried, they are frozen to crystallize the water during the tumbling process, and then dried to form uniform pores on the outer layer of the cat litter particles. These pores not only enhance the hygroscopicity of the cat litter, allowing the cat litter to absorb and lock the pet's urine more quickly and reduce odor, but also further enhance the air permeability of the cat litter, helping to maintain air circulation in the cat litter box and reduce bacterial growth. In addition, during the drying process, the frozen cat litter particles are more tightly bonded due to the crystallization of water, which improves the overall strength and durability of the cat litter, making it less likely to break during use and extending the service life of the cat litter. The application of this innovative process not only improves the functionality of the cat litter, but also takes into account economy and environmental protection, providing pet owners with a better quality and more efficient cat litter option.

[0032] In the present embodiment, preferably, the preparation process also includes surface spraying treatment of the cat litter particles after screening in step nine, the spraying material is a microcapsule solution containing natural plant essential oils, and the spraying amount is controlled at 0.5%-2% of the total mass of the cat litter particles. The cat litter particles after spraying need to be naturally dried at room temperature to avoid the damage of the microcapsule solution to the high temperature, while ensuring that the microcapsule solution can be firmly attached to the cat litter particles. The microcapsule solution of natural plant essential oils not only gives the cat litter the function of antibacterial and deodorization, but also can continuously emit plant fragrance through the slow release characteristics of the microcapsules, thereby improving the use experience of pets. The cat litter particles after spraying are naturally dried at room temperature to avoid the rupture of microcapsules and volatilization of essential oils that may be caused by high temperature drying, thereby ensuring the quality and effect of the product.

[0033] In this embodiment, preferably, the natural plant essential oil microcapsule solution is prepared by encapsulating the natural plant essential oil with a wall material, the wall material can be one of gelatin, gum arabic and sodium alginate, and the encapsulation process adopts an emulsification-cross-linking method or a spray drying method to ensure the stability and sustained release of the microcapsules.

[0034] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An antibacterial and deodorizing cat litter, characterized in that: The antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 50-60 parts of activated carbon, 50-60 parts of zeolite, 20-40 parts of bean curd dregs, 10-20 parts of corn starch, 5-8 parts of deodorizing composite bacterial powder, 2-3 parts of citric acid, 1-3 parts of sodium polyacrylate, 1-2 parts of urine sugar indicating cat litter additive, 5-8 parts of tea residues, 1-3 parts of chitosan, and 2-4 parts of pregelatinized starch.

2. An antibacterial and deodorizing cat litter according to claim 1, characterized in that: The antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 50 parts of activated carbon, 50 parts of zeolite, 20 parts of bean curd dregs, 10 parts of corn starch, 5 parts of deodorizing composite bacterial powder, 2 parts of citric acid, 1 part of sodium polyacrylate, 1 part of urine sugar indicating cat litter additive, 5 parts of tea residues, 1 part of chitosan, and 2 parts of pregelatinized starch.

3. An antibacterial and deodorizing cat litter according to claim 1, characterized in that: The antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 55 parts of activated carbon, 55 parts of zeolite, 30 parts of bean curd dregs, 15 parts of corn starch, 6 parts of deodorizing composite bacterial powder, 2.5 parts of citric acid, 2 parts of sodium polyacrylate, 1.5 parts of urine sugar indicator cat litter additive, 7 parts of tea residues, 2 parts of chitosan, and 3 parts of pregelatinized starch.

4. An antibacterial and deodorizing cat litter according to claim 1, characterized in that: The antibacterial and deodorizing cat litter comprises the following raw materials in parts by weight: 60 parts of activated carbon, 60 parts of zeolite, 40 parts of bean curd dregs, 20 parts of corn starch, 8 parts of deodorizing composite bacterial powder, 3 parts of citric acid, 3 parts of sodium polyacrylate, 2 parts of urine sugar indicator cat litter additive, 8 parts of tea residues, 3 parts of chitosan, and 4 parts of pregelatinized starch.

5. The antibacterial and deodorizing cat litter according to claim 1, characterized in that: The deodorizing composite bacterial powder comprises bacillus, lactic acid bacteria and yeast.

6. The antibacterial and deodorizing cat litter according to claim 1, characterized in that: The urine sugar indicating cat litter additive uses a urine sugar indicator based on enzyme-linked immunosorbent assay.

7. A preparation process for antibacterial and deodorizing cat litter, characterized in that: It includes the following steps: Step 1: 50-60 parts by weight of activated carbon, 50-60 parts by weight of zeolite and 20-40 parts of tofu residue are crushed into 0.5-1 mm size by a crusher for 5-10 minutes, and then sieved by a sieving machine to remove the broken pieces and ensure the consistency of the particles; Step 2: The activated carbon particles, zeolite particles and tofu dregs particles prepared in step 1 are mixed uniformly in a mixer at a speed of 20-30 rpm to form a basic mixture for 10-15 minutes; Step 3: spraying a wetting agent mist onto the basic mixture prepared in step 2, wherein the amount of the mist is controlled to be 1-2% by weight of the basic mixture, and then spraying 9-19 parts of corn starch into the basic mixture, and granulating the mixture by a rotary granulator using a tumbling method, wherein the tumbling speed is about 10-15 revolutions per minute, ensuring that the corn starch is evenly adhered to the surface of the basic mixture particles, and the tumbling time is about 5-10 minutes, to prepare basic cat litter particles; Step 4: 5-8 portions of tea residue are pressed into granules by a tea granulator, and the granules have a size of 0.5-1 mm; Step 5: Spray the tea granules prepared in step 4 with urine sugar indicator cat litter additives at 0.5-1% of the weight of the granules, then spray wetting agent water mist, the amount of water mist is controlled at 1-2% of the weight of the tea granules, and then spray the remaining 1-2 parts of corn starch, and granulate by a rotary granulator using a tumbling method at a tumbling speed of about 10-15 revolutions per minute to ensure that the additives are evenly distributed on the surface of the granules, and the tumbling time is about 5-10 minutes to prepare sterilization color-developing granules; Step 6: Mix the basic cat litter particles prepared in step 3 and the sterilization color-developing particles prepared in step 5 in a mixer, add 5-8 parts of deodorizing composite bacterial powder, 2-3 parts of citric acid, 1-3 parts of sodium polyacrylate, 1-2 parts of urine sugar indicator cat litter additive, 1-3 parts of chitosan and 2-4 parts of pregelatinized starch during the mixing process, and mix them evenly in the mixer at a speed of 20-30 rpm for 20-30 minutes; Step 7: Freeze the mixed cat litter prepared in step 6, with the freezing temperature controlled at -10 to -20 degrees Celsius for 1 to 2 hours to ensure that the water inside the cat litter particles freezes and enhances the structural stability of the cat litter particles; Step 8: Dry the frozen cat litter in an oven at a low temperature of 60-80°C until the moisture content of the cat litter particles drops below 5%, and the drying time is 2-4 hours; Step 9: Sieve the dried cat litter particles through a vibrating screen to remove particles that are too large or too small. The screen aperture is 2-4 mm to ensure the uniformity of the cat litter.

8. The preparation process of a kind of antibacterial deodorizing cat litter according to claim 7, characterized in that: The preparation process also includes spraying the surface of the cat litter particles screened in step nine, wherein the spraying material is a microcapsule solution containing natural plant essential oils, and the spraying amount is controlled to be 0.5%-2% of the total mass of the cat litter particles. The cat litter particles after spraying are naturally dried at room temperature.

9. The preparation process of a kind of antibacterial deodorizing cat litter according to claim 8, characterized in that: The natural plant essential oil microcapsule solution is prepared by encapsulating the natural plant essential oil with a wall material, wherein the wall material can be one of gelatin, gum arabic and sodium alginate, and the encapsulation process adopts an emulsification-crosslinking method or a spray drying method to ensure the stability and sustained release of the microcapsules.