Cat litter and its manufacturing method

Abstract

The present invention discloses cat litter containing the following ingredients in the following weight ratios: 40-60% bamboo extract, 10-20% soybean meal powder, 5-10% sweet potato meal powder, 4-8% pine wood chips, 30-50% bentonite, 5-8% diatomaceous earth, 5-8% volcanic rock powder, 4-6% perlite powder, 0.5-1.5% anthocyanin, and 4-6% thickener. The present invention also discloses a method for producing cat litter, including the following steps: S1. raw material preparation, S2. initial mixing of raw materials, S3. polishing, S4. liquid preparation, S5. secondary mixing, S6. granulation, and S7. drying. The present invention adds bamboo extract to make the raw materials eco-friendly and healthy, and improves safety in use, while adding soybean meal powder, sweet potato meal powder, and pine wood chips not only reduces raw material costs but also improves softness. It can also enhance water absorption. When discarded, it can be buried directly in the ground and used as soil nutrient, making it environmentally friendly, biodegradable, safe, and non-polluting. Since the raw materials can be reused, it is possible to improve resource utilization. TIFF2026508027000004.tif13648

Description

[Technical Field]

[0001] The present invention belongs to the cat litter technical field, and specifically relates to cat litter and a method for producing the same. [Background technology]

[0002] Cat litter is a material used by pet cats to hide their waste. It has excellent absorbency and is usually used in conjunction with a cat tray. An appropriate amount of cat litter is placed in the cat tray, and when a trained cat needs to relieve itself, it enters the tray and covers the waste with the litter. Typical cat litter is made from small granules of paper pulp that mimic sand and provide absorbency. Granules containing physical desiccants such as silica gel are also available. Chemical products such as antibacterial agents, deodorizers, and preservatives are usually added. Cat litter hardens and clumps when it comes into contact with water, making it easier for owners to clean up cat feces and urine and reducing contamination of the space where the cat resides. For example, the millet cat litter disclosed in Publication No. CN114982646A uses all plant-derived raw materials, is non-polluting, odorless, easily dissolves in water, and can be flushed down the toilet. Natural plant enzymes added to the cat litter can instantly decompose the ammonia absorbed by the cat litter. The millet cat litter product processed according to the present invention has a flaky or granular structure. Its diameter is less than 3 mm, and experiments have shown that it feels similar to natural litter when stepped on by cats, does not irritate their paws, and cats readily accept the litter, requiring no adaptation period. However, the existing problems associated with this cat litter and its manufacturing method remain unresolved. The softness of the cat litter reduces cat comfort, and the use of more natural ingredients increases production costs. Furthermore, testing the pH of cat urine is inconvenient, making it difficult to accurately assess the cat's health. To address these issues, we aim to provide a new cat litter and its manufacturing method. Summary of the Invention

[0003] An object of the present invention is to provide cat litter and a method for manufacturing the same that solves the above-mentioned problems in the background art. In order to achieve the above object, the technical outline of the present invention is as follows. Cat litter contains the following ingredients by weight: 40-60% bamboo extract, 10-20% soybean meal powder, 5-10% sweet potato meal powder, 4-8% pine wood shavings, 30-50% bentonite, 5-8% diatomaceous earth, 5-8% volcanic rock powder, 4-6% perlite powder, 0.5-1.5% anthocyanin, and 4-6% thickener. A preferred solution of the present invention includes raw materials consisting of the following weight ratios: 50% bamboo extract, 15% soybean meal powder, 8% sweet potato meal powder, 6% pine wood chips, 40% bentonite, 7% diatomaceous earth, 7% volcanic rock powder, 5% perlite powder, 1% anthocyanin, and 1% thickener. In a preferred solution of the present invention, said thickeners comprise one or more of guar gum, locust bean gum and sodium starch glycolate.

[0004] The manufacturing process for cat litter includes the following steps: S1. Raw material preparation: Prepare the raw materials in the following weight ratios: 40-60% bamboo extract, 10-20% soybean meal powder, 5-10% sweet potato meal powder, 4-8% pine wood chips, 30-50% bentonite, 5-8% diatomaceous earth, 5-8% volcanic rock powder, 4-6% perlite powder, 0.5-1.5% anthocyanin, and 4-6% thickener. S2. Initial mixing of raw materials: Mix bamboo extract, soybean meal powder, sweet potato meal powder, and pine wood chips uniformly to obtain the primary mixed powder. S3. Polishing: Put bentonite, diatomaceous earth, volcanic rock powder and perlite powder into a ball mill and polish and mix to obtain the secondary mixed powder. S4. Preparation of liquid: Mix anthocyanin and water uniformly to prepare a liquid mixture. S5. Secondary mixing: The first mixed powder and the mixed liquid are thoroughly mixed, and a thickener is added at the same time. Next, the second mixed powder is added, and the mixture is thoroughly mixed. Then, a thickener is added to obtain a paste-like paste. S6. Granulation: The paste-like plaster is placed in a granulator and granulated to form mixed granules. S7. Drying: After drying and cooling the mixed granules, the cat litter product shall be obtained.

[0005] The method for producing the bamboo extract is as follows. S101. After washing and drying the bamboo branches thoroughly, crush the bamboo in a crusher to obtain crushed bamboo powder raw material. S102. Add the crushed bamboo product to the NaOH solution and soak for 1-3 hours. After soaking, add an acidic solution to adjust the pH to obtain a bamboo aqueous solution with a pH of 5.6-6.6. S103. Add ethyl acetate and ethyl ether to the bamboo water solution, and distill it by distillation method to obtain bamboo extract.

[0006] The method for producing the soybean meal powder is as follows. S201. Wash the soybean meal thoroughly and place it in a dryer to dry. S202. The dried soybean meal shall be put into a crushing device to be crushed, and the crushed soybean meal shall be sieved to obtain primary soybean meal powder. S203. The primary soybean meal powder shall be moistened by adding an appropriate amount of distilled water, and then the pH value shall be adjusted. The pH-adjusted primary soybean meal powder shall be placed in a dryer and dried again to obtain the finished soybean meal powder product. In S203, the drying temperature of the dryer is 120 to 160°C, the drying time is 30 to 60 minutes, the moisture content of the soybean meal powder is dried to 6 to 10%, and the pulverized soybean meal in S202 is sieved through a 70 to 90 mesh sieve. The sweet potato meal powder and the soybean meal powder are characterized by the similar manufacturing methods. The cat litter is characterized by having a particle size of 3-5 mm and a length of 0.4-1.2 cm.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention adds bamboo extract to make the raw materials eco-friendly and healthy, increasing safety in use. At the same time, the addition of soybean meal powder, sweet potato meal powder, and pine wood chips not only reduces raw material costs but also improves softness and water absorption. When discarded, the product can be buried directly in the ground or used as soil nutrient. It is environmentally friendly, biodegradable, safe, and non-polluting. The raw materials can be reused, improving resource utilization. (2) The cat litter of the present invention is manufactured by mixing anthocyanin with other ingredients in a certain ratio, granulating, and drying. By adding anthocyanin, the health of a pet can be determined by the difference in the anthocyanin's color change response to the acidity or alkalinity of the pet's excrement. For example, if a pet eats a lot of meat, the excrement becomes acidic, and the anthocyanin changes color, turning red. For example, if a pet eats a lot of vegetables, the excrement becomes alkaline, and the anthocyanin changes color, turning green. In serious cases, the color may turn yellow. In normal cases, the anthocyanin does not change color. It is possible to check the pH value of cat excrement at any time. This allows the cat's health condition to be constantly monitored. (3) The present invention adds diatomaceous earth to the raw materials to improve the cat litter's odor absorption ability, thereby effectively improving the deodorizing function of the cat litter. Furthermore, the addition of volcanic rock powder utilizes the antifungal properties of the volcanic rock powder, which inhibits mold growth in humid environments and provides the cat litter with high antibacterial properties. Volcanic rock powder also has a high insulating and heat-retaining effect, improving the quality of cat litter. Furthermore, by combining anthocyanins with pine wood chips, the powder is mixed into the gaps in the volcanic rock powder, effectively protecting the anthocyanins, extending their useful life, and preventing natural deterioration even when stored in the air for long periods without chemical reactions, thereby extending the shelf life of the cat litter. [Brief explanation of the drawings]

[0008] Description of the accompanying drawings [Figure 1][Figure 1] is a process diagram of the present invention.

[0009] Specific implementation methods The following will clearly and in detail describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described herein are only some embodiments of the present invention and do not cover all embodiments. Based on the embodiments of the present invention, all other embodiments that can be obtained by ordinary skilled in the art without creative invention shall be included in the protection scope of the present invention.

[0010] Example 1 Referring to Figure 1, the present invention provides a technical solution. The cat litter is prepared with the following weight ratios of raw materials: 40% bamboo extract, 10% soybean meal powder, 5% sweet potato meal powder, 4% pine wood chips, 30% bentonite, 5% diatomaceous earth, 5% volcanic rock powder, 4% perlite powder, 0.5% anthocyanin, and 4% thickener. In a preferred solution of the present invention, in this embodiment, said thickener comprises guar gum. The manufacturing process for cat litter includes the following steps: S1. Raw material preparation: Prepare the raw materials in the following weight ratios: 40% bamboo extract, 10% soybean meal powder, 5% sweet potato meal powder, 4% pine wood chips, 30% bentonite, 5% diatomaceous earth, 5% volcanic rock powder, 4% perlite powder, 0.5% anthocyanin, and 4% thickener. S2. Initial mixing of raw materials: Mix bamboo extract, soybean meal powder, sweet potato meal powder, and pine wood chips uniformly to obtain the primary mixed powder. S3. Polishing: Put bentonite, diatomaceous earth, volcanic rock powder and perlite powder into a ball mill and polish and mix to obtain the secondary mixed powder. S4. Preparation of liquid: Mix anthocyanin and water uniformly to prepare a liquid mixture. S5. Secondary mixing: The first mixed powder and the mixed liquid are thoroughly mixed, and a thickener is added at the same time. Next, the second mixed powder is added, and the mixture is thoroughly mixed. Then, a thickener is added to obtain a paste-like paste. S6. Granulation: The paste-like plaster is placed in a granulator and granulated to form mixed granules. S7. Drying: After drying and cooling the mixed granules, the cat litter product shall be obtained.

[0011] In this example, the method for producing the bamboo extract is as follows. S101. After washing and drying the bamboo branches thoroughly, crush them in a crusher to obtain crushed bamboo powder raw material. S102. Add the crushed bamboo product to the NaOH solution and soak for 1 hour. After soaking, add an acidic solution to adjust the pH to obtain a bamboo aqueous solution with a pH of 5.6. S103. Add ethyl acetate and ethyl ether to the bamboo water solution, and distill it by distillation method to obtain bamboo extract.

[0012] In this example, the soybean meal powder is produced as follows. S201. Wash the soybean meal thoroughly and place it in a dryer to dry. S202. The dried soybean meal shall be put into a crushing device to be crushed, and the crushed soybean meal shall be sieved to obtain primary soybean meal powder. S203. The primary soybean meal powder shall be moistened by adding an appropriate amount of distilled water, and then the pH value shall be adjusted. The pH-adjusted primary soybean meal powder shall be placed in a dryer and dried again to obtain the finished soybean meal powder product. In this embodiment, in step S203, the drying temperature of the dryer is 120°C, the drying time is 30 minutes, the moisture content of the soybean meal powder is dried to 6%, and the crushed soybean meal in step S202 is sieved through a 70-mesh sieve. This embodiment is characterized in that the manufacturing methods for the sweet potato meal powder and the soybean meal powder are similar. The cat litter is characterized by having a particle size of 3-5 mm and a length of 0.4 cm.

[0013] Example 2 Referring to Figure 1, the present invention provides a technical solution. The cat litter is prepared with the following weight ratios of raw materials: 60% bamboo extract, 20% soybean meal powder, 10% sweet potato meal powder, 8% pine wood chips, 50% bentonite, 8% diatomaceous earth, 8% volcanic rock powder, 6% perlite powder, 1.5% anthocyanin, and 6% thickener. In a preferred solution of the present invention, in this embodiment, said thickener comprises locust bean gum. The manufacturing process for cat litter includes the following steps: S1. Raw material preparation: Prepare the raw materials in the following weight ratios: 60% bamboo extract, 20% soybean meal powder, 10% sweet potato meal powder, 8% pine wood chips, 50% bentonite, 8% diatomaceous earth, 8% volcanic rock powder, 6% perlite powder, 1.5% anthocyanin, and 6% thickener. S2. Initial mixing of raw materials: Mix bamboo extract, soybean meal powder, sweet potato meal powder, and pine wood chips uniformly to obtain the primary mixed powder. S3. Polishing: Put bentonite, diatomaceous earth, volcanic rock powder and perlite powder into a ball mill and polish and mix to obtain the secondary mixed powder. S4. Preparation of liquid: Mix anthocyanin and water uniformly to prepare a liquid mixture. S5. Secondary mixing: The first mixed powder and the mixed liquid are thoroughly mixed, and a thickener is added at the same time. Next, the second mixed powder is added, and the mixture is thoroughly mixed. Then, a thickener is added to obtain a paste-like paste. S6. Granulation: The paste-like plaster is placed in a granulator and granulated to form mixed granules. S7. Drying: After drying and cooling the mixed granules, the cat litter product shall be obtained.

[0014] In this example, the method for producing the bamboo extract is as follows. S101. After washing and drying the bamboo branches thoroughly, crush the bamboo in a crusher to obtain crushed bamboo powder raw material. S102. Add the crushed bamboo product to the NaOH solution and soak for 3 hours. After soaking, add an acidic solution to adjust the pH to obtain a bamboo aqueous solution with a pH of 6.6. S103. Add ethyl acetate and ethyl ether to the bamboo water solution, and distill it by distillation method to obtain bamboo extract.

[0015] In this example, the soybean meal powder is produced as follows. S201. Wash the soybean meal thoroughly and place it in a dryer to dry. S202. The dried soybean meal shall be put into a crushing device to be crushed, and the crushed soybean meal shall be sieved to obtain primary soybean meal powder. S203. The primary soybean meal powder shall be moistened by adding an appropriate amount of distilled water, and then the pH value shall be adjusted. The pH-adjusted primary soybean meal powder shall be placed in a dryer and dried again to obtain the finished soybean meal powder product. In this embodiment, in step S203, the drying temperature of the dryer is 160°C, the drying time is 60 minutes, the moisture content of the soybean meal powder is dried to 10%, and the pulverized soybean meal in step S202 is sieved through a 90 mesh sieve. In this embodiment, the manufacturing methods for the sweet potato meal powder and the soybean meal powder are the same. The cat litter has a particle size of 5 mm and a length of 1.2 cm.

[0016] Example 3 Referring to Figure 1, the present invention provides a technical solution. The cat litter is prepared with the following weight ratios of raw materials: 50% bamboo extract, 15% soybean meal powder, 7% sweet potato meal powder, 6% pine wood chips, 40% bentonite, 7% diatomaceous earth, 6% volcanic rock powder, 5% perlite powder, 0.8% anthocyanin, and 5% thickener. In this embodiment, as a preferred solution of the present invention, said thickener comprises sodium starch glycolate. The manufacturing process for cat litter includes the following steps: S1. Raw material preparation: Prepare the raw materials in the following weight ratios: 50% bamboo extract, 15% soybean meal powder, 7% sweet potato meal powder, 6% pine wood chips, 40% bentonite, 7% diatomaceous earth, 6% volcanic rock powder, 5% perlite powder, 0.8% anthocyanin, and 5% thickener. S2. Initial mixing of raw materials: Mix bamboo extract, soybean meal powder, sweet potato meal powder, and pine wood chips uniformly to obtain the primary mixed powder. S3. Polishing: Put bentonite, diatomaceous earth, volcanic rock powder and perlite powder into a ball mill and polish and mix to obtain the secondary mixed powder. S4. Preparation of liquid: Mix anthocyanin and water uniformly to prepare a liquid mixture. S5. Secondary mixing: The first mixed powder and the mixed liquid are thoroughly mixed, and a thickener is added at the same time. Next, the second mixed powder is added, and the mixture is thoroughly mixed. Then, a thickener is added to obtain a paste-like paste. S6. Granulation: The paste-like plaster is placed in a granulator and granulated to form mixed granules. S7. Drying: After drying and cooling the mixed granules, the cat litter product shall be obtained.

[0017] In this example, the method for producing the bamboo extract is as follows. S101. After washing and drying the bamboo branches thoroughly, crush the bamboo in a crusher to obtain crushed bamboo powder raw material. S102. Add the crushed bamboo product to the NaOH solution and soak for 2 hours. After soaking, add an acidic solution to adjust the pH to obtain a bamboo aqueous solution with a pH of 6.2. S103. Add ethyl acetate and ethyl ether to the bamboo water solution, and distill it by distillation method to obtain bamboo extract.

[0018] In this example, the soybean meal powder is produced as follows. S201. Wash the soybean meal thoroughly and place it in a dryer to dry. S202. The dried soybean meal shall be put into a crushing device to be crushed, and the crushed soybean meal shall be sieved to obtain primary soybean meal powder. S203. The primary soybean meal powder shall be moistened by adding an appropriate amount of distilled water, and then the pH value shall be adjusted. The pH-adjusted primary soybean meal powder shall be placed in a dryer and dried again to obtain the finished soybean meal powder product. In this embodiment, in step S203, the drying temperature of the dryer is 140°C, the drying time is 40 minutes, the moisture content of the soybean meal powder is dried to 8%, and the crushed soybean meal in step S202 is sieved through an 80-mesh sieve. This embodiment is characterized in that the manufacturing methods for the sweet potato meal powder and the soybean meal powder are similar. The cat litter has a particle size of 4 mm and a length of 0.8 cm.

[0019] Example 4 Referring to Figure 1, the present invention provides a technical solution. The cat litter is prepared with the following weight ratios of raw materials: 45% bamboo extract, 12% soybean meal powder, 6% sweet potato meal powder, 5% pine wood chips, 35% bentonite, 6% diatomaceous earth, 6% volcanic rock powder, 5% perlite powder, 0.7% anthocyanin, and 5% thickener. As a preferred solution of the present invention, in this embodiment, said thickeners include guar gum, locust bean gum, and sodium starch glycolate. The manufacturing process for cat litter includes the following steps: S1. Raw material preparation: Prepare the raw materials in the following weight ratios: 45% bamboo extract, 12% soybean meal powder, 6% sweet potato meal powder, 5% pine wood chips, 35% bentonite, 6% diatomaceous earth, 6% volcanic rock powder, 5% perlite powder, 0.7% anthocyanin, and 5% thickener. S2. Initial mixing of raw materials: Mix bamboo extract, soybean meal powder, sweet potato meal powder, and pine wood chips uniformly to obtain the primary mixed powder. S3. Polishing: Put bentonite, diatomaceous earth, volcanic rock powder and perlite powder into a ball mill and polish and mix to obtain the secondary mixed powder. S4. Preparation of liquid: Mix anthocyanin and water uniformly to prepare a liquid mixture. S5. Secondary mixing: The first mixed powder and the mixed liquid are thoroughly mixed, and a thickener is added at the same time. Next, the second mixed powder is added, and the mixture is thoroughly mixed. Then, a thickener is added to obtain a paste-like paste. S6. Granulation: The paste-like plaster is placed in a granulator and granulated to form mixed granules. S7. Drying: After drying and cooling the mixed granules, the cat litter product shall be obtained.

[0020] In this example, the method for producing the bamboo extract is as follows. S101. After washing and drying the bamboo branches thoroughly, crush the bamboo in a crusher to obtain crushed bamboo powder raw material. S102. Add the crushed bamboo product to the NaOH solution and soak for 2 hours. After soaking, add an acidic solution to adjust the pH to obtain a bamboo aqueous solution with a pH of 5.8. S103. Add ethyl acetate and ethyl ether to the bamboo water solution, and distill it by distillation method to obtain bamboo extract.

[0021] In this example, the soybean meal powder is produced as follows. S201. Wash the soybean meal thoroughly and place it in a dryer to dry. S202. The dried soybean meal shall be put into a crushing device to be crushed, and the crushed soybean meal shall be sieved to obtain primary soybean meal powder. S203. The primary soybean meal powder shall be moistened by adding an appropriate amount of distilled water, and then the pH value shall be adjusted. The pH-adjusted primary soybean meal powder shall be placed in a dryer and dried again to obtain the finished soybean meal powder product. In this embodiment, in step S203, the drying temperature of the dryer is 130°C, the drying time is 40 minutes, the moisture content of the soybean meal powder is dried to 7%, and the crushed soybean meal in step S202 is sieved through a 75 mesh sieve. This embodiment is characterized in that the manufacturing methods for the sweet potato meal powder and the soybean meal powder are similar. In this embodiment, the cat litter has a particle size of 3.5 mm and a length of 0.5 cm.

[0022] Principles and advantages of the present invention: The present invention adds bamboo extract to make the raw materials eco-friendly and healthy, increasing safety in use. At the same time, the addition of soybean meal powder, sweet potato meal powder, and pine wood chips not only reduces raw material costs but also improves softness and water absorption. When discarded, the product can be buried directly in the ground or used as soil nutrient. It is environmentally friendly, biodegradable, safe, and non-polluting. The raw materials can be reused, improving resource utilization. The cat litter of the present invention is produced by mixing anthocyanin with other ingredients in a specific ratio, granulating, and drying. By adding anthocyanin, the health of a pet can be determined by the difference in the anthocyanin's color change response to the acidity or alkalinity of the pet's excrement. For example, if a pet eats a lot of meat, the excrement becomes acidic, causing the anthocyanin to discolor red. For example, if a pet eats a lot of vegetables, the excrement becomes alkaline, causing the anthocyanin to discolor green. In severe cases, the color may turn yellow. In normal cases, the anthocyanin does not discolor. This makes it possible to check the pH value of cat excrement, allowing you to constantly monitor your cat's health. In this invention, volcanic rock powder has a high insulating effect, improving the quality of cat litter. Furthermore, by combining anthocyanins with pine wood chips, they are mixed into the gaps in the volcanic rock powder. This effectively protects the anthocyanins from the effects of acidic and alkaline substances in the air, and extends the shelf life of the anthocyanins. The present invention adds diatomaceous earth to the raw materials to improve the cat litter's odor absorption ability, thereby effectively improving the cat litter's deodorizing function. Furthermore, the addition of volcanic rock powder utilizes the antifungal properties of the volcanic rock powder, inhibiting mold growth in humid environments and providing the cat litter with high antibacterial properties. The volcanic rock powder also has a high insulating and heat-retaining effect, improving the quality of the cat litter.

[0023] The following experiment was carried out using cat litter produced by a conventional method and cat litter produced according to the present invention. The details and results of the experiment are as follows. TIFF2026508027000002.tif86168TIFF2026508027000003.tif48166

[0024] Through various experiments, it was found that the water absorption, deodorizing, antibacterial, and heat insulating properties of the cat litter produced in Examples 1, 2, 3, and 4 were all improved. In particular, Example 3 was shown to be the most excellent example. Although embodiments of the present invention have been shown and described in detail, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is limited by the appended claims and their equivalents.

Claims

1. It is cat litter. Its characteristics include the following weight ratios of ingredients: 40-60% bamboo extract, 10-20% soybean meal powder, 5-10% sweet potato meal powder, 4-8% pine wood chips, 30-50% bentonite, 5-8% diatomaceous earth, 5-8% volcanic rock powder, 4-6% perlite powder, 0.5-1.5% anthocyanin, and 4-6% thickener.

2. The cat litter of claim 1 is characterized by containing the following ingredients in the following weight ratios: 50% bamboo extract, 15% soybean meal powder, 8% sweet potato meal powder, 6% pine wood chips, 40% bentonite, 7% diatomaceous earth, 7% volcanic rock powder, 5% perlite powder, 1% anthocyanin, and 5% thickener.

3. The cat litter of claim 1 is characterized in that the thickener contains one or more of guar gum, locust bean gum, and sodium starch glycolate.

4. The method for producing cat litter is characterized by including the following steps: S1. Preparation of raw materials: Prepare raw materials in the following weight ratios: 40-60% bamboo extract, 10-20% soybean meal powder, 5-10% sweet potato meal powder, 4-8% pine wood chips, 30-50% bentonite, 5-8% diatomaceous earth, 5-8% volcanic rock powder, 4-6% perlite powder, 0.5-1.5% anthocyanin, and 4-6% thickener. S2, initial mixing of raw materials: Bamboo extract, soybean meal powder, sweet potato meal powder, and pine wood chips are mixed uniformly to obtain the primary mixed powder. S3, Polishing: Put bentonite, diatomaceous earth, volcanic rock powder and perlite powder into a ball mill and polish and mix them to obtain a secondary mixed powder. S4. Preparation of liquid: Mix anthocyanin and water uniformly to prepare a mixed liquid. S5, Secondary mixing: The first mixed powder and the mixed liquid are thoroughly mixed, and a thickener is added at the same time. Next, the second mixed powder is added, and the mixture is thoroughly mixed. A thickener is then added to obtain a paste-like paste. S6, Granulation: The paste-like plaster is placed in a granulator and granulated to form mixed granules. S7, Drying: After drying and cooling the mixed granules, the cat litter product is obtained.

5. The cat litter manufacturing method described in claim 4 is characterized in that the bamboo extract manufacturing method comprises the following processing steps. S101: After the bamboo branches are washed thoroughly and dried, the bamboo is crushed in a crusher to obtain crushed bamboo powder raw material. S102: Add the crushed bamboo product to the NaOH solution and soak for 1-3 hours. After soaking, add an acidic solution to adjust the pH to obtain a bamboo aqueous solution with a pH of 5.6-6.

6. S103: Add ethyl acetate and ethyl ether to the bamboo aqueous solution, and distill it by distillation method to obtain bamboo extract.

6. The cat litter manufacturing method according to claim 4 is characterized in that the method for manufacturing soybean meal powder comprises the following manufacturing steps. S201: Wash the soybean meal thoroughly, and then place the washed soybean meal in a dryer to dry it. S202: The dried soybean meal is put into a crushing device to be crushed, and the crushed soybean meal is sieved to obtain primary soybean meal powder. S203: Add an appropriate amount of distilled water to the primary soybean meal powder to moisten it, then adjust the pH value. The pH-adjusted primary soybean meal powder is put into a dryer to be dried again, thereby obtaining a finished soybean meal powder product.

7. The cat litter manufacturing method described in claim 6 is characterized in that in step S203, the drying temperature of the dryer is 120°C to 160°C, the drying time is 30 to 60 minutes, the moisture content of the soybean meal powder is dried to 6 to 10%, and the crushed soybean meal in step S202 is sieved through a 70 to 90 mesh sieve.

8. The cat litter manufacturing method described in claim 7 is characterized in that the processing methods for sweet potato meal powder and soybean meal powder are the same.

9. The cat litter manufacturing method described in claim 4 is characterized in that the particle size of the cat litter is 3 to 5 mm and the length is 0.4 to 1.2 cm.

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