Cat litter and preparation method therefor

Abstract

Cat litter, comprising the following raw materials in parts by weight: 40-60 parts of a bamboo extract, 10-20 parts of bean dregs powder, 5-10 parts of sweet potato dregs powder, 4-8 parts of pine sawdust, 30-50 parts of bentonite, 5-8 parts of diatomite, 5-8 parts of volcanic rock particles, 4-6 parts of perlite powder, 0.5-1.5 parts of anthocyanin, and 4-6 parts of a binder. Further provided is a preparation method for cat litter, comprising the following steps: S1, preparing raw materials; S2, preliminarily mixing the raw materials; S3, grinding; S4, preparing a liquid; S5, performing secondary mixing; S6, performing granulation; and S7, drying. The bamboo extract is added, so that the raw materials are green and healthy, improving the safety of use, and the bean dregs powder, the sweet potato dregs powder and the pine sawdust are added, so that the material costs can be reduced, and the softness can be increased; and the cat litter has high water absorption, can be directly buried in the ground when discarded so as to serve as a soil nutrient, is environmentally friendly, degradable, safe and pollution-free, and has sustainable raw materials, thereby increasing the resource utilization rate.

Description

Cat litter and preparation method thereof Technical Field

[0001] The invention belongs to the technical field of cat litter, and in particular relates to cat litter and a preparation method thereof. Background Art

[0002] Cat litter is a highly absorbent material used by cats to bury feces and urine. It's typically used with a litter box. A suitable amount of litter is poured into the litter box, and trained cats will then poop on top of it when they need to defecate. Cat litter is typically made from paper pulp granulated into small particles to simulate sand and improve water absorption. Some types also use granules with physical desiccants like silica gel. Chemicals such as antimicrobials, deodorants, and preservatives are often added. Cat litter clumps when it comes into contact with water, making it easier for owners to clean up cat feces and urine, reducing contamination.

[0003] For example, the millet plant cat litter disclosed in announcement number CN114982646A, although the raw materials used are all plant raw materials, are pollution-free and have no irritating odor, are easily soluble in water, and can be flushed down the toilet; the natural plant enzymes added to the cat litter can instantly decompose the ammonia absorbed by the cat litter; the finished millet plant cat litter prepared by the present invention has a flaky or granular structure and a diameter of less than 3 mm. When a cat steps on it, it feels like natural sand and does not prick its feet. It has been measured that cats are easy to accept and do not require an adaptation period. However, the problems existing in the existing cat litter and its preparation method are not solved: the cat litter is very soft, which reduces the comfort of the cat, and the use of more natural materials increases the production cost. It is inconvenient to detect the pH value of the cat's urine, which makes it impossible to understand the cat's physical health status in a timely manner. For this reason, we propose a cat litter and its preparation method. Summary of the Invention

[0004] The object of the present invention is to provide a cat litter and a preparation method thereof, to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a cat litter, comprising the following raw materials in parts by weight: 40-60 parts of bamboo extract, 10-20 parts of bean dregs powder, 5-10 parts of sweet potato dregs powder, 4-8 parts of pine sawdust, 30-50 parts of bentonite, 5-8 parts of diatomaceous earth, 5-8 parts of volcanic rock particles, 4-6 parts of perlite powder, 0.5-1.5 parts of anthocyanins, and 4-6 parts of a binder.

[0006] Preferably, the raw materials include the following components in parts by weight: 50 parts of bamboo extract, 15 parts of bean dregs powder, 8 parts of sweet potato dregs powder, 6 parts of pine sawdust, 40 parts of bentonite, 7 parts of diatomaceous earth, 7 parts of volcanic rock particles, 5 parts of perlite powder, 1 part of anthocyanin, and 5 parts of adhesive.

[0007] Preferably, the adhesive comprises one or more of guar gum, acacia gum and sodium carboxymethyl starch.

[0008] A method for preparing cat litter comprises the following steps:

[0009] S1. Raw material preparation: Prepare the following raw materials in parts by weight: 40-60 parts of bamboo extract, 10-20 parts of dregs powder, 5-10 parts of sweet potato residue powder, 4-8 parts of pine sawdust, 30-50 parts of bentonite, 5-8 parts of diatomaceous earth, 5-8 parts of volcanic rock particles, 4-6 parts of perlite powder, 0.5-1.5 parts of anthocyanins, 4-6 parts of binder;

[0010] S2 preliminary mixing of raw materials: bamboo extract, dregs powder, sweet potato residue powder, pine sawdust mixed to obtain a first mixed powder;

[0011] S3 grinding: bentonite, diatomaceous earth, volcanic rock particles and perlite powder were placed in a ball mill and ground and mixed to obtain a second mixed powder;

[0012] S4. Liquid preparation: anthocyanin is added to water and mixed evenly to form a mixed solution;

[0013] S5 secondary mixing: The first mixed powder and the mixture are first thoroughly mixed, and a binder is added, and then added to the second mixed powder and thoroughly mixed, and a binder is added to obtain a paste;

[0014] S6 granulation: the paste is put into a granulator for granulation to form mixed particles;

[0015] S7. Drying: Drying the mixed particles and then cooling them to obtain a finished cat litter product.

[0016] Preferably, the preparation method of the bamboo extract comprises:

[0017] S101. Take bamboo branches, clean them, dry them, and crush them through a grinder to obtain crushed bamboo products;

[0018] S102. The crushed bamboo material was added to a NaOH solution and soaked for 1-3h. After soaking, an acid solution was added to adjust the pH value to obtain a bamboo aqueous solution having a pH value of 5.6-6.6;

[0019] S103. Add ethyl acetate and ethyl ether to the bamboo aqueous solution, and distill using a distillation process to obtain the bamboo extract.

[0020] Preferably, the method for preparing the dregs powder comprises:

[0021] S201. Take the dregs and wash them several times, and then place the washed dregs in a dryer for drying;

[0022] S202. The dried dregs are placed in a crushing device and crushed, and the crushed dregs are sieved to obtain primary dregs powder;

[0023] S203. Add an appropriate amount of distilled water to the primary okara powder to moisten it, then adjust the pH value, and send the pH-adjusted primary okara powder into a dryer for further drying to obtain a finished okara powder.

[0024] Preferably, in said S203, the drying temperature of the dryer is 120°C-160°C, the drying time is 30-60 minutes, and the dregs are dried to a moisture content of 6-10% in the dregs powder; and the dregs crushed in said S202 are passed through a 70-90 mesh sieve.

[0025] Preferably, the preparation method of the sweet potato residue powder is the same as that of the bean dregs powder.

[0026] Preferably, the cat litter particles have a diameter of 3-5 mm and a length of 0.4-1.2 cm.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) The present invention makes the raw materials green and healthy by adding bamboo extract, and increases the safety of use. At the same time, the addition of bean dregs powder, sweet potato dregs powder, and pine sawdust can not only reduce the material cost, but also increase the softness and strong water absorption. When discarded, it can be directly buried in the ground as soil nutrients. It is environmentally friendly, degradable, safe and pollution-free, and the raw materials are renewable, thereby increasing resource utilization.

[0029] (2) The cat litter of the present invention is made by mixing anthocyanidins with other raw materials in proportion, granulating, and drying. By adding anthocyanidins, the health of the pet can be judged by the different color changes of anthocyanidins to the acidity and alkalinity of the pet's excrement. For example, if the cat eats too much meat, the excrement will be acidic, and the color of anthocyanidins will turn red. For example, if the cat eats too much vegetables, the excrement will be alkaline, and the color of anthocyanidins will turn green. In severe cases, it will turn yellow. Normal anthocyanidins do not change color. The pH of the cat's excrement can be monitored at any time, so that the cat's physical health status can be understood in a timely manner.

[0030] (3) The addition of diatomaceous earth to the raw materials of the present invention can improve the odor adsorption capacity of the cat litter, effectively improving the deodorization performance of the cat litter, and by adding volcanic rock particles, the mildew resistance of the volcanic rock particles is utilized, so that the cat litter can inhibit the growth of mold in a humid environment and has high antibacterial properties. In addition, the volcanic rock particles also have a high thermal insulation effect, thereby improving the use quality of the cat litter; and by mixing anthocyanins with pine sawdust into the gaps between the volcanic rock particles, anthocyanins are effectively protected, extending the effective use period of anthocyanins, and even if they are retained in the air for a long time, they will not undergo chemical reactions and become naturally ineffective, thereby extending the service life of the cat litter. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a flow chart of the present invention. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0033] Please refer to Figure 1. The present invention provides a technical solution: a cat litter, comprising the following raw materials in parts by weight: 40 parts of bamboo extract, 10 parts of bean dregs powder, 5 parts of sweet potato dregs powder, 4 parts of pine sawdust, 30 parts of bentonite, 5 parts of diatomaceous earth, 5 parts of volcanic rock particles, 4 parts of perlite powder, 0.5 parts of anthocyanin, and 4 parts of adhesive.

[0034] In this embodiment, preferably, the adhesive comprises guar gum.

[0035] A method for preparing cat litter comprises the following steps:

[0036] S1. Raw material preparation: Prepare the following raw materials in parts by weight: 40 parts of bamboo extract, 10 parts of dregs powder, 5 parts of sweet potato residue powder, 4 parts of pine sawdust, 30 parts of bentonite, 5 parts of diatomaceous earth, 5 parts of volcanic rock particles, 4 parts of perlite powder, 0.5 parts of anthocyanin, 4 parts of binder;

[0037] S2 preliminary mixing of raw materials: bamboo extract, dregs powder, sweet potato residue powder, pine sawdust mixed to obtain a first mixed powder;

[0038] S3 grinding: bentonite, diatomaceous earth, volcanic rock particles and perlite powder were placed in a ball mill and ground and mixed to obtain a second mixed powder;

[0039] S4. Liquid preparation: anthocyanin is added to water and mixed evenly to form a mixed solution;

[0040] S5 secondary mixing: The first mixed powder and the mixture are first thoroughly mixed, and a binder is added, and then added to the second mixed powder and thoroughly mixed, and a binder is added to obtain a paste;

[0041] S6 granulation: the paste is put into a granulator for granulation to form mixed particles;

[0042] S7. Drying: Drying the mixed particles and then cooling them to obtain a finished cat litter product.

[0043] In this embodiment, preferably, the preparation method of the bamboo extract includes:

[0044] S101. Take bamboo branches, clean them, dry them, and crush them through a grinder to obtain crushed bamboo products;

[0045] S102. The crushed bamboo material was added to a NaOH solution and soaked for 1 h. After soaking, an acid solution was added to adjust the pH value to obtain a bamboo aqueous solution having a pH value of 5.6;

[0046] S103. Add ethyl acetate and ethyl ether to the bamboo aqueous solution, and distill using a distillation process to obtain the bamboo extract.

[0047] In this embodiment, preferably, the method for preparing the dregs powder includes:

[0048] S201. Take the dregs and wash them several times, and then place the washed dregs in a dryer for drying;

[0049] S202. The dried dregs are placed in a crushing device and crushed, and the crushed dregs are sieved to obtain primary dregs powder;

[0050] S203. Add an appropriate amount of distilled water to the primary okara powder to moisten it, then adjust the pH value, and send the pH-adjusted primary okara powder into a dryer for further drying to obtain a finished okara powder.

[0051] In this embodiment, preferably, in said S203, the drying temperature of the dryer is 120°C, the drying time is 30 minutes, and the dregs are dried until the moisture content in the dregs powder is 6%; and the dregs crushed in said S202 are passed through a 70-mesh sieve.

[0052] In this embodiment, preferably, the preparation method of the sweet potato residue powder and the bean dregs powder is the same.

[0053] In this embodiment, preferably, the cat litter particles have a diameter of 3 mm and a length of 0.4 cm. Example 2

[0054] Please refer to Figure 1. The present invention provides a technical solution: a cat litter, comprising the following raw materials in parts by weight: 60 parts of bamboo extract, 20 parts of bean dregs powder, 10 parts of sweet potato dregs powder, 8 parts of pine sawdust, 50 parts of bentonite, 8 parts of diatomaceous earth, 8 parts of volcanic rock particles, 6 parts of perlite powder, 1.5 parts of anthocyanins, and 6 parts of adhesive.

[0055] In this embodiment, preferably, the adhesive includes acacia gum.

[0056] A method for preparing cat litter comprises the following steps:

[0057] S1. Raw material preparation: Prepare the following raw materials in parts by weight: 60 parts of bamboo extract, 20 parts of dregs powder, 10 parts of sweet potato residue powder, 8 parts of pine sawdust, 50 parts of bentonite, 8 parts of diatomaceous earth, 8 parts of volcanic rock particles, 6 parts of perlite powder, 1.5 parts of anthocyanins, 6 parts of adhesive;

[0058] S2 preliminary mixing of raw materials: bamboo extract, dregs powder, sweet potato residue powder, pine sawdust mixed to obtain a first mixed powder;

[0059] S3 grinding: bentonite, diatomaceous earth, volcanic rock particles and perlite powder were placed in a ball mill and ground and mixed to obtain a second mixed powder;

[0060] S4. Liquid preparation: anthocyanin is added to water and mixed evenly to form a mixed solution;

[0061] S5 secondary mixing: The first mixed powder and the mixture are first thoroughly mixed, and a binder is added, and then added to the second mixed powder and thoroughly mixed, and a binder is added to obtain a paste;

[0062] S6 granulation: the paste is put into a granulator for granulation to form mixed particles;

[0063] S7. Drying: Drying the mixed particles and then cooling them to obtain a finished cat litter product.

[0064] In this embodiment, preferably, the preparation method of the bamboo extract includes:

[0065] S101. Take bamboo branches, clean them, dry them, and crush them through a grinder to obtain crushed bamboo products;

[0066] S102. The crushed bamboo material was added to a NaOH solution and soaked for 3h. After soaking, an acid solution was added to adjust the pH value to obtain a bamboo aqueous solution having a pH value of 6.6;

[0067] S103. Add ethyl acetate and ethyl ether to the bamboo aqueous solution, and distill using a distillation process to obtain the bamboo extract.

[0068] In this embodiment, preferably, the method for preparing the dregs powder includes:

[0069] S201. Take the dregs and wash them several times, and then place the washed dregs in a dryer for drying;

[0070] S202. The dried dregs are placed in a crushing device and crushed, and the crushed dregs are sieved to obtain primary dregs powder;

[0071] S203. Add an appropriate amount of distilled water to the primary okara powder to moisten it, then adjust the pH value, and send the pH-adjusted primary okara powder into a dryer for further drying to obtain a finished okara powder.

[0072] In this embodiment, preferably, in said S203, the drying temperature of the dryer is 160°C, the drying time is 60 minutes, and the dregs are dried until the moisture content in the dregs powder is 10%; and the dregs crushed in said S202 are passed through a 90-mesh sieve.

[0073] In this embodiment, preferably, the preparation method of the sweet potato residue powder and the bean dregs powder is the same.

[0074] In this embodiment, preferably, the cat litter particles have a diameter of 5 mm and a length of 1.2 cm. Example 3

[0075] Please refer to Figure 1. The present invention provides a technical solution: a cat litter, comprising the following raw materials in parts by weight: 50 parts of bamboo extract, 15 parts of bean dregs powder, 7 parts of sweet potato dregs powder, 6 parts of pine sawdust, 40 parts of bentonite, 7 parts of diatomaceous earth, 6 parts of volcanic rock particles, 5 parts of perlite powder, 0.8 parts of anthocyanin, and 5 parts of adhesive.

[0076] In this embodiment, preferably, the adhesive includes sodium carboxymethyl starch.

[0077] A method for preparing cat litter comprises the following steps:

[0078] S1. Raw material preparation: Prepare the following raw materials in parts by weight: 50 parts of bamboo extract, 15 parts of dregs powder, 7 parts of sweet potato residue powder, 6 parts of pine sawdust, 40 parts of bentonite, 7 parts of diatomaceous earth, 6 parts of volcanic rock particles, 5 parts of perlite powder, 0.8 parts of anthocyanins, 5 parts of binder;

[0079] S2 preliminary mixing of raw materials: bamboo extract, dregs powder, sweet potato residue powder, pine sawdust mixed to obtain a first mixed powder;

[0080] S3 grinding: bentonite, diatomaceous earth, volcanic rock particles and perlite powder were placed in a ball mill and ground and mixed to obtain a second mixed powder;

[0081] S4. Liquid preparation: anthocyanin is added to water and mixed evenly to form a mixed solution;

[0082] S5 secondary mixing: The first mixed powder and the mixture are first thoroughly mixed, and a binder is added, and then added to the second mixed powder and thoroughly mixed, and a binder is added to obtain a paste;

[0083] S6 granulation: the paste is put into a granulator for granulation to form mixed particles;

[0084] S7. Drying: Drying the mixed particles and then cooling them to obtain a finished cat litter product.

[0085] In this embodiment, preferably, the preparation method of the bamboo extract includes:

[0086] S101. Take bamboo branches, clean them, dry them, and crush them through a grinder to obtain crushed bamboo products;

[0087] S102. The crushed bamboo material was added to a NaOH solution and soaked for 2h. After soaking, an acid solution was added to adjust the pH value to obtain a bamboo aqueous solution having a pH value of 6.2;

[0088] S103. Add ethyl acetate and ethyl ether to the bamboo aqueous solution, and distill using a distillation process to obtain the bamboo extract.

[0089] In this embodiment, preferably, the method for preparing the dregs powder includes:

[0090] S201. Take the dregs and wash them several times, and then place the washed dregs in a dryer for drying;

[0091] S202. The dried dregs are placed in a crushing device and crushed, and the crushed dregs are sieved to obtain primary dregs powder;

[0092] S203. Add an appropriate amount of distilled water to the primary okara powder to moisten it, then adjust the pH value, and send the pH-adjusted primary okara powder into a dryer for further drying to obtain a finished okara powder.

[0093] In this embodiment, preferably, in said S203, the drying temperature of the dryer is 140°C, the drying time is 40 minutes, and the dregs are dried until the moisture content in the dregs powder is 8%; and the dregs crushed in said S202 are passed through an 80-mesh sieve.

[0094] In this embodiment, preferably, the preparation method of the sweet potato residue powder and the bean dregs powder is the same.

[0095] In this embodiment, preferably, the cat litter particles have a diameter of 4 mm and a length of 0.8 cm. Example 4

[0096] Please refer to Figure 1. The present invention provides a technical solution: a cat litter, comprising the following raw materials in parts by weight: 45 parts of bamboo extract, 12 parts of bean dregs powder, 6 parts of sweet potato dregs powder, 5 parts of pine sawdust, 35 parts of bentonite, 6 parts of diatomaceous earth, 6 parts of volcanic rock particles, 5 parts of perlite powder, 0.7 parts of anthocyanin, and 5 parts of adhesive.

[0097] In this embodiment, preferably, the adhesive comprises guar gum, acacia gum and sodium carboxymethyl starch.

[0098] A method for preparing cat litter comprises the following steps:

[0099] S1. Raw material preparation: Prepare the following raw materials in parts by weight: 45 parts of bamboo extract, 12 parts of dregs powder, 6 parts of sweet potato residue powder, 5 parts of pine sawdust, 35 parts of bentonite, 6 parts of diatomaceous earth, 6 parts of volcanic rock particles, 5 parts of perlite powder, 0.7 parts of anthocyanin, 5 parts of binder;

[0100] S2 preliminary mixing of raw materials: bamboo extract, dregs powder, sweet potato residue powder, pine sawdust mixed to obtain a first mixed powder;

[0101] S3 grinding: bentonite, diatomaceous earth, volcanic rock particles and perlite powder were placed in a ball mill and ground and mixed to obtain a second mixed powder;

[0102] S4. Liquid preparation: anthocyanin is added to water and mixed evenly to form a mixed solution;

[0103] S5 secondary mixing: The first mixed powder and the mixture are first thoroughly mixed, and a binder is added, and then added to the second mixed powder and thoroughly mixed, and a binder is added to obtain a paste;

[0104] S6 granulation: the paste is put into a granulator for granulation to form mixed particles;

[0105] S7. Drying: Drying the mixed particles and then cooling them to obtain a finished cat litter product.

[0106] In this embodiment, preferably, the preparation method of the bamboo extract includes:

[0107] S101. Take bamboo branches, clean them, dry them, and crush them through a grinder to obtain crushed bamboo products;

[0108] S102. The crushed bamboo material was added to a NaOH solution and soaked for 2h. After soaking, an acid solution was added to adjust the pH value to obtain a bamboo aqueous solution having a pH value of 5.8;

[0109] S103. Add ethyl acetate and ethyl ether to the bamboo aqueous solution, and distill using a distillation process to obtain the bamboo extract.

[0110] In this embodiment, preferably, the method for preparing the dregs powder includes:

[0111] S201. Take the dregs and wash them several times, and then place the washed dregs in a dryer for drying;

[0112] S202. The dried dregs are placed in a crushing device and crushed, and the crushed dregs are sieved to obtain primary dregs powder;

[0113] S203. Add an appropriate amount of distilled water to the primary okara powder to moisten it, then adjust the pH value, and send the pH-adjusted primary okara powder into a dryer for further drying to obtain a finished okara powder.

[0114] In this embodiment, preferably, in S203, the drying temperature of the dryer is 130°C, the drying time is 40 minutes, and the dregs are dried until the moisture content of the dregs powder is 7%; and the dregs crushed in S202 are passed through a 75-mesh sieve.

[0115] In this embodiment, preferably, the preparation method of the sweet potato residue powder and the bean dregs powder is the same.

[0116] In this embodiment, preferably, the cat litter particles have a diameter of 3.5 mm and a length of 0.5 cm.

[0117] Principles and advantages of the present invention:

[0118] The invention makes the raw materials green and healthy by adding bamboo extract, and increases the safety of use. At the same time, the addition of bean dregs powder, sweet potato dregs powder and pine sawdust can not only reduce the material cost, but also increase the softness and strong water absorption. When discarded, it can be directly buried in the ground as soil nutrients. It is environmentally friendly, degradable, safe and pollution-free, and the raw materials are renewable, thereby increasing resource utilization. The cat litter in the invention is made by mixing anthocyanins and other raw materials in proportion, granulating and drying them. By adding anthocyanins, the health of the pet can be judged by the different color changes of anthocyanins to the acidity and alkalinity of the pet's excrement. For example, if the pet eats too much meat, the excrement will be acidic, and the color of anthocyanins will turn red. For example, if the pet eats too much vegetables, the excrement will be alkaline, and the color of anthocyanins will turn green. In severe cases, it will turn yellow. Normal anthocyanins do not change color, and the cat litter can be used with the pet. The pH value of cat excrement is monitored in real time, so that the cat's physical health status can be understood in time. Anthocyanins are first mixed with materials such as pine sawdust and then mixed with bentonite, diatomaceous earth, volcanic rock particles and perlite powder. In particular, the volcanic rock particles have fine gaps. The anthocyanin material mixed with pine sawdust is filled into the gaps of the volcanic rock, which can effectively protect the anthocyanins from being affected by acids and alkalis in the air and extend the service life of the anthocyanins. The addition of diatomaceous earth to the raw materials of the present invention can improve the odor adsorption capacity of the cat litter and effectively improve the deodorization performance of the cat litter. The addition of volcanic rock particles and the mildew resistance of the volcanic rock particles make the cat litter able to inhibit the growth of mold in a humid environment and have high antibacterial properties. In addition, the volcanic rock particles also have high thermal insulation effects, thereby improving the use quality of the cat litter.

[0119] Select the cat litter of traditional technology and the cat litter of the present invention technology to carry out the following experiment, and the experimental content and result are as follows table

[0120] Through various experiments, it can be found that the water absorption, deodorization, antibacterial property, and thermal insulation property of the cat litter prepared in Example 1, Example 2, Example 3, and Example 4 are all improved, and Example 3 is the best example.

[0121] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cat litter, characterized in that: The invention comprises the following raw materials in parts by weight: 40-60 parts of bamboo extract, 10-20 parts of bean dregs powder, 5-10 parts of sweet potato dregs powder, 4-8 parts of pine sawdust, 30-50 parts of bentonite, 5-8 parts of diatomaceous earth, 5-8 parts of volcanic rock particles, 4-6 parts of pearlite powder, 0.5-1.5 parts of anthocyanin and 4-6 parts of adhesive.

2. A cat litter according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 50 parts of bamboo extract, 15 parts of bean dregs powder, 8 parts of sweet potato dregs powder, 6 parts of pine sawdust, 40 parts of bentonite, 7 parts of diatomaceous earth, 7 parts of volcanic rock particles, 5 parts of pearlite powder, 1 part of anthocyanin and 5 parts of adhesive.

3. A cat litter according to claim 1, characterized in that: The adhesive comprises one or more of guar gum, acacia gum and sodium carboxymethyl starch.

4. A method for preparing cat litter, characterized in that: The following steps are involved: S1. Raw material preparation: Prepare the following raw materials by weight: 40-60 parts of bamboo extract, 10-20 parts of bean dregs powder, 5-10 parts of sweet potato dregs powder, 4-8 parts of pine sawdust, 30-50 parts of bentonite, 5-8 parts of diatomaceous earth, 5-8 parts of volcanic rock particles, 4-6 parts of perlite powder, 0.5-1.5 parts of anthocyanins, 4-6 parts of adhesive; S2. Preliminary mixing of raw materials: The bamboo extract, dregs powder, sweet potato residue powder, pine sawdust were mixed to obtain a first mixed powder; S3 grinding: bentonite, diatomaceous earth, volcanic rock particles and perlite powder were put into a ball mill and ground and mixed to obtain a second mixed powder; S4. Liquid preparation: anthocyanin is added with water and mixed evenly to form a mixed solution; S5 secondary mixing: the first mixed powder and the mixed solution are first thoroughly mixed, and a binder is added, and then added to the second mixed powder and thoroughly mixed, and a binder is added to obtain a paste; S6. Granulation: The paste is put into a granulator for granulation to form mixed particles; S7. Drying: Drying the mixed particles and then cooling them to obtain a finished cat litter product.

5. A method for preparing cat litter according to claim 4, characterized in that: The preparation method of the bamboo extract comprises: S101. Take bamboo branches, clean them, dry them, and crush them through a crusher to obtain crushed bamboo products; S102. The crushed bamboo material is added to a NaOH solution and soaked for 1-3 hours. After soaking, an acid solution is added to adjust the pH value to obtain a bamboo aqueous solution, wherein the pH value of the bamboo aqueous solution is 5.6-6.6; S103. Add ethyl acetate and ethyl ether to the bamboo aqueous solution, and distill using a distillation process to obtain the bamboo extract.

6. A method for preparing cat litter according to claim 4, characterized in that: The preparation method of the bean dregs powder comprises: S201. Wash the dregs several times and place the washed dregs in a dryer for drying; S202. The dried dregs are placed in a crushing device and crushed, and the crushed dregs are sieved to obtain primary dregs powder; S203. Add an appropriate amount of distilled water to the primary okara powder to moisten it, adjust the pH value, and send the primary okara powder after the pH value is adjusted into a dryer for further drying to obtain a finished okara powder.

7. A method for preparing cat litter according to claim 6, characterized in that: In the S203, the drying temperature of the dryer is 120°C-160°C, the drying time is 30-60 minutes, and the moisture content of the dregs powder is dried to 6-10%; the dregs crushed in the S202 are passed through a 70-90 mesh sieve.

8. A method for preparing cat litter according to claim 7, characterized in that: The preparation method of the sweet potato residue powder is the same as that of the bean dregs powder.

9. A method for preparing cat litter according to claim 4, characterized in that: The particle diameter of the cat litter is 3-5 mm and the length is 0.4-1.2 cm.

Images