New environmentally friendly rice straw cat litter and its manufacturing method

Abstract

To provide a novel environment-friendly straw cat litter and a preparation method thereof.SOLUTION: Ingredients of a new environment-friendly rice straw-made cat litter all use degradable raw materials, the rice straw powder has a high cellulose content and fine powder quality, the cat litter produced in 100 g can absorb 460 mL saline, and the fiber of the poplar fluff pulp is soft, so that the cat litter has a pleasant touch. When the valerian powder is mixed with the lavender powder, the two exhibit a synergistic effect, which helps the cat to adapt to a new environment quickly, and also plays a role of sterilization. The raw material is bonded by a natural adhesive of starch, and a polymer water-absorbing resin is sprayed on the surface of the granules of the cat litter after granulation, and baked in combination with sodium hydrogen carbonate to generate gas. The produced granular cat litter has a pore structure, which overcomes the problem of the cat litter sticking to the bottom of the cat litter tray, and further improves the water absorption capacity.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention belongs to the field of manufacturing environmentally friendly cat litter, and more specifically relates to a novel environmentally friendly rice straw-based cat litter and a method for manufacturing the same.

Background Art

[0002] With the change of lifestyle, cat litter has become a modern consumable, and keeping cats in a healthy and scientific way has become a trend, and the requirements for cat litter are also becoming increasingly diversified. The commercially available cat litters have single manufacturing raw materials and manufacturing methods, mainly including silica gel cat litter made of silica as raw material, and cat litters made of pure natural materials such as okara, pine, and paper scraps. The granules of the cat litter made of silica are large, and cats will feel pain when stepping on them. The cat litters made of okara, pine, and paper scraps have weak water absorption and have a unique smell, and some cats do not like the smell of okara and rosin. Cats are very sensitive to smells, and in addition, anxiety and depression also occur, and they frequently go to the toilet or show a phenomenon of less urine output, which is disadvantageous for cats to adapt to the indoor environment.

[0003] Moreover, since conventional cat litters generally tend to be alkaline, long-term use will alkalize the cat's constitution, which is one of the causes leading to feline urinary system diseases. After using cat litter, cats often lick their fur frequently to keep clean and healthy, and the cat litter sticking to the fur may be accidentally ingested. The weather in summer is hot and humid, and the cat litter mixes with urine and feces to breed a lot of bacteria. After cats accidentally ingest it, diarrhea and vomiting occur, and eczema also appears. Moreover, the cat litter that has absorbed moisture adheres to the bottom and edges of the cat litter tray more, making it difficult to clean, increasing people's housework volume, and moreover, a lot of non-decomposable garbage is produced, which is very disadvantageous for environmental protection.

[0004] Currently, the manufacturing technology of conventional cat litter mainly has the following problems. First, the manufacturing materials and methods of cat litter are single. Large-grained cat litter has a large water absorption area and strong water absorbency, but its touch is not good. After the cat litter comes into contact with water, it adheres to the bottom of the cat litter tray, making it difficult to clean, and the odor emitted from the cat litter does not consider contributing to calming the cat's emotions or helping the cat adapt to a new environment. Second, since conventional cat litter contains components such as gypsum, it generally tends to be alkaline, while cats are most suitable to live in an environment that is slightly neutral or slightly acidic, which can avoid the cat suffering from urinary calculi. Third, in a humid environment, cat litter made of natural materials combines with moisture in the air, cat urine and feces, breeding a lot of bacteria. After the cat accidentally eats it, diarrhea and vomiting will occur.

Summary of the Invention

[0005] In view of the above situation, in order to overcome the disadvantages of the prior art, the present invention provides a new environmentally friendly rice straw-based cat litter and its manufacturing method. To solve the problems that the manufacturing materials and methods of cat litter are single, cats feel pain when stepping on it, are uncomfortable with the odor of cat litter, the pH value of cat litter tends to be alkaline, it is easy to breed bacteria when cat litter is mixed with urine, and it adheres to the bottom of the cat litter tray, in the present invention, fine and soft powdery rice straw with a high cellulose content and strong water absorbency is mixed with poplar fluff pulp with good water absorbency and soft texture, and calcium carbonate powder is added, so that the finished cat litter produced has a comfortable touch and is ensured to have stronger water absorbency. Since the straw powder is slightly acidic, the final pH of the cat litter can be adjusted to be neutral or slightly acidic by adding calcium carbonate powder and sodium bicarbonate. By adding valerian powder and lavender powder that can soothe the cat's emotions, the two can play a synergistic effect, not only contributing to quickly making the cat adapt to a new environment, but also playing a role in sterilization and further ensuring the health of the cat's body. At the same time, in the process of manufacturing cat litter, a high molecular water-absorbing resin is sprayed on the surface of the cat litter granules to prevent the cat litter from adhering to the bottom of the cat litter tray in a humid environment, overcoming the problem that the cat litter adheres to the bottom of the cat litter tray, and moreover, further improving the water absorbency.

[0006] To achieve the above object, the technical means used in the present invention are as follows. In the present invention, A novel environmentally friendly rice straw-based cat litter containing 50 to 60 parts of rice straw powder, 40 to 50 parts of poplar fluff pulp, 15 to 20 parts of a natural starch adhesive, 5 to 10 parts of a superabsorbent polymer, 2 to 5 parts of valerian powder, 2 to 5 parts of lavender powder, 4 to 8 parts of sodium bicarbonate powder, and 3 to 6 parts of calcium carbonate powder has been proposed.

[0007] Preferably, the method for manufacturing the rice straw powder is as follows: Step S1 of putting fresh rice straw into a dryer for drying and dehydration to obtain dried rice straw; Step S2 of putting the dried rice straw produced in Step S1 into a crusher to crush the dried rice straw to obtain crude rice straw powder; Step S3 of sieving the crude rice straw powder produced in S2 using a mesh filter to remove coarse granules and obtain rice straw powder.

[0008] Preferably, in S1, the weight part of the fresh rice straw is 200 to 300 weight parts, the drying temperature is 50 to 70 °C, and the drying time is 10 to 16 h.

[0009] Preferably, in S2, the crushing time of the crusher is 40 to 60 min, and the crushing power is 15 to 18 kW.

[0010] Preferably, in S3, the mesh filter is 10 to 200 mesh.

[0011] Preferably, the method for manufacturing the natural starch adhesive is specifically as follows: Step I of putting starch into a sterile stirring kiln and adding sterile pure water to obtain a mixture of water and starch; Step II of stirring the mixture of water and starch produced in Step I using a sterile stirring kiln until bubbles appear to obtain starch paste; Filter using a mesh filter, and then filter out dust from the starch paste produced in Step II to obtain a natural adhesive of starch so that it can be better adhered later, including Step III.

[0012] Preferably, in I, the starch is corn starch, potato starch, wheat starch, tapioca, sweet potato starch, the temperature of the sterile pure water is 25-40 °C, and the weight part ratio of the starch to the sterile pure water is 1-2:1.

[0013] Preferably, in II, the stirring speed of the sterile stirring kiln is 100-200 r / min, the stirring time is 20-40 min, and the stirring temperature is 45-60 °C.

[0014] Preferably, in III, the mesh filter is 10-60 mesh.

[0015] In the present invention, specifically, Weigh rice straw powder, poplar fluff pulp, natural adhesive of starch, valerian powder, lavender powder, sodium bicarbonate powder, calcium carbonate powder in parts by weight, put them into a sterile stirring kiln, and uniformly stir the raw materials to obtain a premix of cat litter in Step 1 (raw material mixing step), Put the premix of cat litter produced in Step 1 into a cat litter granulator, and press the premix of cat litter into granules by the cat litter granulator to obtain moist cylindrical granular cat litter in Step 2 (pressing into granules step), Uniformly spread the powdery high molecular weight water-absorbing resin on the moist cylindrical granular cat litter produced in Step 2 to obtain undried cat litter in Step 3 (uniform spreading step), Put the undried cat litter produced in Step 3 into a dryer to dry and cure and form it to obtain unsterilized cat litter in Step 4 (drying and curing step), There is further provided a manufacturing method of a novel environmentally friendly rice straw-based cat litter, including Step 5 (ultraviolet sterilization and disinfection step) of irradiating the unsterilized cat litter produced in Step 4 under ultraviolet rays to obtain the finished cat litter.

[0016] Preferably, in Step 1, the stirring temperature of the aseptic stirring kiln is 25 to 28°C, the stirring direction and speed are clockwise at 3 to 5 s / cycle, and the stirring time is 1.5 to 3 h.

[0017] Preferably, in Step 2, the power of the granulator for the cat litter is 100 to 200 kW, and the diameter of the granules of the cat litter is 1 to 2 mm.

[0018] Preferably, in Step 3, the fineness of the superabsorbent polymer is 5 to 15 mesh, the spraying time is 30 to 60 s, the spraying thickness is 0.1 to 0.3 mm, and the number of spraying times is 1 to 3 times.

[0019] Preferably, in Step 4, the drying temperature of the dryer is 60 to 80°C, and the drying time is 3 to 15 min.

[0020] Preferably, in Step 5, the power of the ultraviolet lamp is 15 to 40 W, and the irradiation time is 15 to 20 min.

[0021] The effects obtained by the present invention include the following. The present invention uses rice straw powder as the main raw material. The rice straw is soft, powdery, fine, and contains 44% cellulose. The cellulose contains many hydroxyl groups, which have strong hydrophilicity and can form many hydrogen bonds with water molecules. Moreover, it is mixed with the cotton fluff of poplar plants, which has good water absorption and extremely high flexibility. Therefore, the produced cat litter has a comfortable touch, and has the advantages that the cat litter and feces are rolled into balls and are light in weight, and at the same time has stronger water absorption. The straw powder is acidic. Adding calcium carbonate powder can not only increase the water absorption, but also further adjust the pH of the whole cat litter to be neutral and slightly acidic, which can also maintain the health of the cat's urinary system. In the present invention, by containing valerenic acid in the added valerian powder, neuropeptide S can be effectively induced, the process of activating the homologous receptor can be shortened, and the sleep latency can be reduced. Lavender contains two active ingredients, linalool and linalyl acetate. These two ingredients can play a good role in calming and relaxing the central nervous system and the organs controlled by it, and have a role in actively regulating the secretion of serotonin. Therefore, lavender is very effective in calming the mind. The combined smell emitted by the two can further improve the quality of the cat's sleep and calm the cat's emotions. Moreover, the alkaloids in valerian have antibacterial effects, and valtrate, dihydrovalerate, etc. have antiviral effects, and the linalool contained in lavender can sterilize. By using a natural adhesive of starch to bond the raw materials, it is ensured that even if the cat accidentally eats a small amount, vomiting and diarrhea will not occur. Moreover, all the raw materials are biodegradable and environmentally friendly. Also, in the process of manufacturing the cat litter, after pressing the cat litter premix into granules, spraying and then drying the high molecular water-absorbing resin overcomes the problem that the cat litter adheres to the bottom of the cat litter tray, facilitates daily cleaning, and the surface of the cat litter after dry granulation contains the high molecular water-absorbing resin to enhance the water absorption performance of the cat litter. Sodium bicarbonate contained in the raw materials is heated to generate carbon dioxide gas, so that pores appear on the surface of the cat litter, further improving the water absorption capacity.

Brief Description of the Drawings

[0022] To more clearly explain the technical means in the present invention or the prior art, the following will be described with reference to the drawings in a clear and easy-to-understand manner. Obviously, the drawings in the following description are only those of the present invention. A person skilled in the art can obtain other drawings according to these drawings without creative efforts.

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0023] The following will clearly and completely explain the technical means in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

[0024] Unless otherwise defined, all technical terms and scientific terms used in the specification have the same meaning as commonly known to those skilled in the art. In addition, any methods and materials similar or equivalent to the described content can all be used in the present invention. The preferred implementation methods and materials described in the specification are only for illustration purposes and cannot limit the content of the present application.

[0025] Unless otherwise specified, all the experimental methods in the following examples are all ordinary methods. Unless otherwise specified, all the test materials and test strains used in the following examples can all be commercially purchased and obtained.

[0026] Example 1: In this example, A novel environmentally friendly rice straw-based cat litter containing 50 parts of rice straw powder, 40 parts of poplar fluff pulp, 15 parts of natural adhesive of corn starch, 5 parts of superabsorbent polymer, 2 parts of valerian powder, 2 parts of lavender powder, 4 parts of sodium bicarbonate powder, and 3 parts of calcium carbonate powder, and a manufacturing method thereof are provided.

[0027] The manufacturing method of the rice straw powder is as follows: Step S1: Put 200 parts by weight of fresh rice straw into a dryer, with a drying temperature of 50 °C, a drying time of 10 h, perform drying and dehydration to obtain dried rice straw. Step S2: Put the dried rice straw produced in Step S1 into a crusher with an output of 15 kW, crush it for 40 min to obtain crude rice straw powder. Step S3: Use a 10-mesh mesh filter to sieve the crude rice straw powder produced in S2, remove the coarse granules to obtain rice straw powder.

[0028] The manufacturing method of the natural adhesive of corn starch is as follows: Step I: Put corn starch into a sterile stirring kiln, add sterile pure water at 25 °C, and the weight part ratio of corn starch to sterile pure water is 1:1 to obtain a mixture of water and starch. Step II: Use a sterile stirring kiln to stir the mixture of water and starch produced in Step I at a speed of 100 r / min and a stirring temperature of 45 °C for 20 min until bubbles appear to obtain starch paste. Step III: Filter using a 10-mesh mesh filter, and then filter out the dust from the starch paste produced in Step II to obtain the natural adhesive of corn starch for better adhesion.

[0029] In this embodiment, specifically, Weigh rice straw powder, poplar fluff pulp, natural adhesive of corn starch, valerian powder, lavender powder, sodium bicarbonate powder, and calcium carbonate powder by parts by weight, put them into a sterile stirring kiln, and stir at a stirring temperature of 25 °C, with a stirring speed of 3 s / cycle clockwise for 1.5 h to uniformly stir the raw materials to obtain Step 1 (raw material mixing step) of the cat litter premix. Put the cat litter premix produced in Step 1 into a 100 kW cat litter granulator, and press the cat litter premix into granules with a diameter of 1 mm by the cat litter granulator to obtain Step 2 (pressing into granules step) of damp cylindrical granular cat litter. Uniformly disperse a powdery superabsorbent polymer with a fineness of 5 mesh on the damp cylindrical granular cat litter produced in Step 2. The dispersion time is 30 s, the dispersion thickness is 0.1 mm, and the number of dispersion times is 1 time to obtain undried cat litter. This is Step 3 (uniform dispersion step). Put the undried cat litter produced in Step 3 into a dryer. The drying temperature is 60 °C, and the drying time is 3 min to perform drying and hardening forming to obtain unsterilized cat litter. This is Step 4 (drying and hardening step). Irradiate the unsterilized cat litter produced in Step 4 under ultraviolet light. The power of the ultraviolet lamp is 15 W, and the irradiation time is 15 min to obtain the finished cat litter. This is Step 5 (ultraviolet sterilization and disinfection). A manufacturing method of a novel environmentally friendly rice straw-based cat litter is further provided.

[0030] Example 2: In this example, A novel environmentally friendly rice straw-based cat litter containing 55 parts of rice straw powder, 45 parts of poplar fluff pulp, 18 parts of natural adhesive of corn starch, 8 parts of superabsorbent polymer, 4 parts of valerian powder, 3 parts of lavender powder, 6 parts of sodium bicarbonate powder, and 5 parts of calcium carbonate powder and its manufacturing method are provided.

[0031] The manufacturing method of the rice straw powder is as follows: Put 250 parts by weight of fresh rice straw into a dryer. The drying temperature is 60 °C, and the drying time is 13 h to perform drying and dehydration to obtain dried rice straw. This is Step S1. Put the dried rice straw produced in step S1 into a crusher with an output of 16 kW, crush it for 50 min to obtain a crude rice straw powder by crushing the dried rice straw, which is step S2; It includes step S3 of using a 100-mesh mesh filter to sieve the crude rice straw powder produced in S2, removing coarse particles, and obtaining rice straw powder.

[0032] The method for producing the natural adhesive of the corn starch is as follows: Put corn starch into a sterile stirring kiln, add sterile pure water at 30 °C, and the weight part ratio of corn starch to sterile pure water is 1.5:1 to obtain a mixture of water and starch, which is step I; Using a sterile stirring kiln, stir the mixture of water and starch produced in step I at a speed of 150 r / min and a stirring temperature of 50 °C until bubbles appear for 30 min to obtain a starch paste, which is step II; Filter using a 30-mesh mesh filter, and then filter out dust from the starch paste produced in step II to obtain a natural adhesive of corn starch, which is step III.

[0033] In this embodiment, specifically: Weigh rice straw powder, poplar fluff pulp, natural adhesive of corn starch, valerian powder, lavender powder, sodium bicarbonate powder, and calcium carbonate powder by weight parts, put them into a sterile stirring kiln, and stir at a stirring temperature of 26 °C with a stirring speed of 4 s / cycle clockwise for 2.5 h to uniformly stir the raw materials and obtain a premix of cat litter, which is step 1 (raw material mixing step); Put the premix of cat litter produced in step 1 into a cat litter granulator with 150 kW, and press the premix of cat litter into granules with a diameter of 1.5 mm by the cat litter granulator to obtain moist cylindrical granule cat litter, which is step 2 (pressing into granules step); Uniformly disperse a powdery superabsorbent polymer resin with a fineness of 10 mesh on the moist cylindrical granule cat litter produced in step 2. The dispersion time is 45 s, the dispersion thickness is 0.2 mm, and the number of dispersion times is 2 times to obtain undried cat litter, which is step 3 (uniform dispersion step). Put the undried cat litter produced in Step 3 into a dryer, with a drying temperature of 70 °C and a drying time of 10 min to dry and harden it into shape, obtaining the unsterilized cat litter in Step 4 (drying and hardening step); There is further provided a method for manufacturing a novel environmentally friendly rice straw-based cat litter, including Step 5 (ultraviolet sterilization and disinfection) of irradiating the unsterilized cat litter produced in Step 4 under ultraviolet light, with the power of the ultraviolet lamp being 30 W and the irradiation time being 18 min to obtain the finished cat litter.

[0034] Example 3: In this example, There is provided a novel environmentally friendly rice straw-based cat litter containing 60 parts of rice straw powder, 50 parts of poplar fluff pulp, 20 parts of natural adhesive of corn starch, 10 parts of superabsorbent resin, 5 parts of valerian powder, 5 parts of lavender powder, 8 parts of sodium bicarbonate powder, and 6 parts of calcium carbonate powder, as well as a method for manufacturing the same.

[0035] The manufacturing method of the rice straw powder is as follows Put 300 parts by weight of fresh rice straw into a dryer, with a drying temperature of 70 °C and a drying time of 16 h for drying and dehydration to obtain the dried rice straw in Step S1; Put the dried rice straw produced in Step S1 into a crusher with an output of 18 kW and crush it for 60 min to obtain the crude rice straw powder in Step S2; Use a 200-mesh sieve filter to sieve the crude rice straw powder produced in S2 to remove the coarse granules and obtain the rice straw powder in Step S3.

[0036] The manufacturing method of the natural adhesive of corn starch is as follows Put the corn starch into a sterile stirring kiln, add sterile pure water at 40 °C, with the weight part ratio of corn starch to sterile pure water being 2:1 to obtain a mixture of water and starch in Step I; Using the sterile stirring kiln, stir the mixture of water and starch produced in Step I at a speed of 200 r / min and a stirring temperature of 60 °C for 40 min until bubbles appear to obtain the starch paste in Step II; Filter using a 60-mesh mesh filter, and then filter out dust from the starch paste produced in Step II so that it adheres better, to obtain a natural adhesive of corn starch in Step III.

[0037] In this example, specifically, Weigh rice straw powder, poplar fluff pulp, natural adhesive of corn starch, valerian powder, lavender powder, sodium bicarbonate powder, and calcium carbonate powder in parts by weight, put them into a sterile stirring kiln, and stir at a stirring temperature of 28°C, with a stirring speed of 5 s / cycle clockwise for 3 h to uniformly stir the raw materials to obtain a premix of cat litter in Step 1 (raw material mixing step), Put the premix of cat litter produced in Step 1 into a 200 kW cat litter granulator, and press the premix of cat litter into granules with a diameter of 2 mm by the cat litter granulator to obtain moist cylindrical granule cat litter in Step 2 (pressing into granules step), Uniformly sprinkle powdery superabsorbent polymer with a fineness of 15 mesh on the moist cylindrical granule cat litter produced in Step 2. The spraying time is 60 s, the spraying thickness is 0.3 mm, and the spraying frequency is 3 times to obtain undried cat litter in Step 3 (uniform spraying step), Put the undried cat litter produced in Step 3 into a dryer. The drying temperature is 80°C and the drying time is 15 min to dry, harden, and form to obtain unsterilized cat litter in Step 4 (drying and hardening step), A method for manufacturing a new environmentally friendly rice straw-based cat litter is further provided, which includes Step 5 (ultraviolet sterilization and disinfection) of irradiating the unsterilized cat litter produced in Step 4 under ultraviolet light. The power of the ultraviolet lamp is 40 W and the irradiation time is 20 min to obtain the finished cat litter.

[0038] Comparative Example 1: In this comparative example, a new environmentally friendly rice straw-based cat litter and its manufacturing method are provided. The difference from Example 1 is only that the finished cat litter produced does not contain rice straw powder, and other components, component contents, and method steps are the same as those in Example 1.

[0039] Comparative Example 2: In this comparative example, a novel environmentally friendly rice straw-based cat litter and its manufacturing method are provided. The difference from Example 1 is only that the finished cat litter produced does not contain valerian powder and lavender powder, and other components, the content of the components, and the method steps are the same as those in Example 1.

[0040] Comparative Example 3: In this comparative example, A novel environmentally friendly rice straw-based cat litter containing 50 parts of rice straw powder, 40 parts of poplar fluff pulp, 15 parts of natural adhesive of corn starch, 2 parts of valerian powder, 2 parts of lavender powder, and 4 parts of sodium bicarbonate powder, and its manufacturing method are provided.

[0041] The manufacturing method of the rice straw powder is as follows: Step S1: Put 200 parts by weight of fresh rice straw into a dryer, the drying temperature is 50°C, the drying time is 10 h, perform drying and dehydration to obtain dried rice straw. Step S2: Put the dried rice straw produced in Step S1 into a crusher with an output of 15 kW, crush for 40 min to obtain crushed dried rice straw and obtain crude rice straw powder. Step S3: Use a 10-mesh mesh filter to sieve the crude rice straw powder produced in S2, remove coarse granules, and obtain rice straw powder.

[0042] The manufacturing method of the natural adhesive of corn starch is as follows: Step I: Put corn starch into a sterile stirring kiln, add sterile pure water at 25°C, and the weight part ratio of corn starch to sterile pure water is 1:1 to obtain a mixture of water and starch. Step II: Use a sterile stirring kiln to stir the mixture of water and starch produced in Step I at a speed of 100 r / min and a stirring temperature of 45°C for 20 min until bubbles appear to obtain starch paste. Step III: Use a 10-mesh mesh filter to filter, and then filter out dust from the starch paste produced in Step II to obtain the natural adhesive of corn starch so that it is easier to adhere better.

[0043] In this comparative example, specifically, Weigh the parts by weight of rice straw powder, poplar fluff pulp, natural adhesive of corn starch, valerian powder, lavender powder, and sodium bicarbonate powder, put them into a sterile stirring kiln, and stir at a stirring temperature of 25°C with a stirring speed of 3 s / cycle clockwise for 1.5 h to uniformly stir the raw materials and obtain a premix of cat litter in Step 1 (raw material mixing step), and Put the premix of cat litter produced in Step 1 into a cat litter granulator with a power of 100 kW, and press the premix of cat litter into granules with a diameter of 1 mm by the cat litter granulator to obtain wet cylindrical granular cat litter in Step 2 (pressing into granules step), and Put the wet cylindrical granular cat litter pressed in Step 2 into a dryer and dry it at 60°C for 3 min to dry and harden and form it to obtain unsterilized cat litter in Step 3 (drying and hardening step), and There is further provided a manufacturing method of a novel environmentally friendly rice straw-based cat litter, which includes Step 4 (ultraviolet sterilization and disinfection step) of irradiating the unsterilized cat litter produced in Step 3 under a 15-W ultraviolet lamp for 15 min to obtain the finished cat litter.

[0044] Experimental Example 1: Measurement test of the water absorption capacity of cat litter. Test with the finished cat litter produced in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Comparative Example 3. Specifically, it includes the following experimental steps. (1) Weigh 100 g of the cat litter produced in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Comparative Example 3 using an electronic scale, put them into 500-mL glass beakers respectively, and repeat 3 sets. (2) Slowly pour 30 mL of physiological saline with a concentration of 0.9% into the cat litter obtained in Step (1). (3) Time with a timer, record the time required for 100 g of cat litter to completely absorb 30 mL of physiological saline with a concentration of 0.9%, and then continue to pour 0.9% physiological saline into different cat litters until the cat litter absorbs water and reaches saturation. Record the volume of physiological saline absorbed when reaching the saturation state in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Comparative Example 3.

[0045] When the finished cat litter produced in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Comparative Example 3 reached a saturated state, the absorption amount was statistically counted, and the results were as shown in Table 1.

[0046] Table 1. Statistical table of the maximum absorption amount of cat litter

Table 1

[0047] Analysis of results: Figure 4 is a result diagram of the time required for the novel environmentally friendly rice straw-based cat litter per 100 g described in Examples 1 to 3 and Comparative Examples 1 to 3 of the present invention to absorb 30 mL of physiological saline. As shown in the figure, the times required in Examples 1 to 3 were 1.8 s, 1.9 s, and 2.1 s, respectively, and the times required in Comparative Example 1 and Comparative Example 3 were 4 times those in Examples 1 to 3. As shown in Table 1, when physiological saline was continuously added, in Examples 1 to 3, 456 mL, 472 mL, and 468 mL could be absorbed until reaching the saturated state, and the maximum absorption amount was 2.5 times that of the cat litter produced in Comparative Example 1 and Comparative Example 3. The rice straw powder used in the novel environmentally friendly rice straw-based cat litter described in the present invention obtained was not only light and fine in powder quality, but also further contained a lot of cellulose. The cellulose contained a lot of hydroxyl groups, and the hydroxyl groups had strong hydrophilicity and could form a lot of hydrogen bonds with water molecules. Therefore, the produced cat litter had strong water absorption, not only a fast absorption rate, but also a large absorption amount.

[0048] Experimental Example 2: Measurement test of the sensory preference of cats for cat litter and the bacterial content.

[0049] 180 healthy cats raised at home were selected and divided into 6 groups. In the same living environment, the cats in the first to third groups used the finished cat litter produced in Examples 1 to 3 respectively, and the cats in the fourth to sixth groups used the finished cat litter produced in Comparative Examples 1 to 3 respectively. They were observed for 15 days, the cat litter was regularly cleaned, and clean cat litter was added to the cat litter tray. The behavioral characteristics of the cats and their adaptability to the new environment were recorded, and the results were as shown in Table 2.

[0050] Table 2. Statistical Table of the Suitability of Cats for the Environment

Table 2

[0051] (1) After 15 days, the cat litter remaining in the cat litter trays of the group in Example 1 and the group in Comparative Example 2 was taken out. (2) For each, 1 g of the cat litter taken out in step (1) was used as the experimental group of Example 1 and the experimental group of Comparative Example 2, put into a sterilized LB liquid medium, and the unused cat litter produced in Example 1 and Comparative Example 2 was used as a blank. Three sets were repeated, the shaker table temperature was 28 °C, the rotation speed was 200 r / min, and shaking culture was carried out for 30 h to obtain a bacterial suspension. (3) On the clean bench, the LB liquid medium was put into a petri dish and solidified to obtain an LB solid plate. 60 μL of the bacterial suspension was put into the solid LB plate and evenly spread, and parallel measurements were carried out 3 times for each sample. (4) The coated LB solid plate was turned upside down and placed in an incubator at 37 °C for constant-temperature culture for 24 h. (5) The LB solid plate was taken out, the number of colonies on one plate was recorded, and the average value was calculated.

[0052] According to the cat litter produced by the production methods of Example 1 and Comparative Example 2, the total number of colonies on one of the plates was recorded respectively, and the results were as shown in Table 3.

[0053] Table 3. Statistical Table of the Number of Colonies Contained in Cat Litter

Table 3

[0054] Analysis of Results: As shown in Table 2, the living conditions of 6 groups of cats were observed for 15 days. The cats using the cat litter produced in Comparative Example 2 had unstable sleep and showed anxious emotions. They adapted to the new living environment 12 days after using the cat litter. The cats using the cat litter produced in Examples 1 to 3 adapted to the new environment 3 days later. As shown in Table 3, further, colonies were measured for the cat litter produced in Example 1 and Comparative Example 2. The number of colonies in the control group of Comparative Example 2 was 8 times that of the control group of Example 1, and the number of colonies included in the experimental group of Comparative Example 2 was 6 times that of the experimental group of Example 1. The valerian powder and lavender powder added to the novel environment-friendly rice straw-based cat litter described in the present invention can not only contribute to calming the emotions of cats, stabilizing the sleep situation, and enabling cats to quickly adapt to the new environment, but also have a strong bactericidal effect.

[0055] Experimental Example 3: Measurement test on the degree of adhesion of cat litter to the bottom of the cat litter tray when in contact with water.

[0056] The finished cat litter produced in Example 1 and Comparative Example 3 was used for the test.

[0057] The cat litter produced in Example 1 and Comparative Example 3 was respectively put into the same standard cat litter trays, spread with a thickness of 1 cm, 500 mL of sterile pure water was put into the cat litter, and after 25 minutes, the cat litter was taken out, and the situation of the cat litter adhering to the bottom of the cat litter tray was observed. The results were as shown in Table 4.

[0058] Table 4. Statistical table of the situation of cat litter adhering to the bottom of the cat litter tray

Table 4

[0059] Analysis of Results: As shown in Table 4, the cat litter produced in Examples 1 to 3 and Comparative Examples 1 to 2 did not show the phenomenon of sticking to the bottom of the cat litter tray. In Comparative Example 3, no high molecular water-absorbing resin was added during the production process, and the phenomenon of sticking to the bottom of the cat litter tray often occurred. It was proved that the novel environmentally friendly rice husk-based cat litter produced by the present invention overcame the problem of being difficult to clean daily due to the cat litter absorbing water and sticking to the bottom of the cat litter tray.

[0060] The embodiments of the present invention have been disclosed and described. However, those skilled in the art can make various changes, modifications, substitutions, and deformations to these embodiments without departing from the principle and spirit of the present invention. It is obvious that the scope of the present invention is limited by the claims and their equivalents.

[0061] As described above, the present invention and its embodiments have been described. However, such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual application is not limited thereto. That is, those skilled in the art, under the inspiration thereof and without departing from the creative purpose of the present invention, all structural aspects and embodiments similar to the technical means designed without creativity should belong to the protection scope of the present invention.

Claims

1. A method for producing a new environmentally friendly cat litter made of rice straw, comprising: 50-60 parts of rice straw powder, 40-50 parts of poplar fluff pulp, 15-20 parts of natural starch adhesive, 5-10 parts of polymeric water absorbent resin, 2-5 parts of straw powder, 2-5 parts of lavender powder, 4-8 parts of sodium bicarbonate powder, and 3-6 parts of calcium carbonate powder; The method for producing rice straw powder comprises: Step S1: putting fresh rice straw into a dryer, drying and dehydrating the rice straw to obtain dried rice straw; Step S2: putting the dried rice straw produced in step S1 into a grinder, grinding the dried rice straw, and obtaining crude rice straw powder; and step S3 of sieving the crude rice straw powder produced in S2 using a mesh filter to remove coarse granules and obtain rice straw powder; The weight part of the fresh rice straw is 200 to 300 parts by weight, The drying temperature is 50 to 70° C., and the drying time is 10 to 16 hours. The grinding time of the grinder is 40 to 60 min, and the grinding power is 15 to 18 kW; The mesh filter is 10 to 200 mesh. The method for producing the starch natural adhesive comprises: Step I: putting starch into a sterile mixing kiln and adding sterile pure water to obtain a water-starch mixture; Step II is to stir the water and starch mixture prepared in step I using a sterile stirring kiln until bubbles appear, to obtain a starch paste; and step III, filtering using a mesh filter, and then filtering out dust from the starch paste produced in step II to obtain a natural adhesive of starch for better adhesion. The starch is corn starch, potato starch, wheat starch, tapioca, sweet potato starch, The temperature of the sterile pure water is 25 to 40° C. The weight ratio of the starch to the sterile pure water is 1 to 2:1, The stirring speed of the aseptic stirring kiln is 100-200 r / min, the stirring time is 20-40 min, and the stirring temperature is 45-60° C.; The mesh filter is 10 to 60 mesh. specifically, Step 1 (raw material mixing step) of weighing rice straw powder, poplar fluff pulp, starch natural adhesive, straw powder, lavender powder, sodium bicarbonate powder, and calcium carbonate powder by weight, and putting them into a sterile mixing kiln to mix the raw materials uniformly to obtain a cat litter premix; Step 2 (pressing into granules) is to feed the cat litter premix produced in step 1 into a cat litter granulator, and press the cat litter premix into granules by the cat litter granulator to obtain wet cylindrical granules of cat litter; Step 3 (uniform spreading step) of uniformly spreading powdered polymeric water absorbent resin on the wet cylindrical granular cat litter produced in step 2 to obtain wet cat litter; Step 4 (drying and hardening step) in which the undried cat litter produced in step 3 is placed in a dryer, dried, hardened and molded to obtain unsterilized cat litter; The method for producing a new environmentally friendly cat litter made from rice straw is characterized by including step 5 (ultraviolet sterilization step) of irradiating the unsterilized cat litter produced in step 4 under ultraviolet light to obtain the finished cat litter.

2. The novel environmentally friendly rice straw cat litter manufacturing method according to claim 1, characterized in that in step 1, the stirring temperature of the aseptic stirring kiln is 25-28°C, the stirring direction and speed are clockwise 3-5s / cycle, and the stirring time is 1.5-3h.

3. The novel environmentally friendly rice straw cat litter manufacturing method according to claim 2, characterized in that in step 2, the power of the cat litter granulator is 100-200kW, and the diameter of the cat litter granules is 1-2mm.

4. In step 3, the fineness of the polymeric water absorbent resin is 5-15 mesh, the spreading time is 30-60 s, the spreading thickness is 0.1-0.3 mm, and the spreading frequency is 1-3 times. The method for producing the novel environmentally friendly rice straw cat litter according to claim 3.

5. The novel environmentally friendly rice straw cat litter manufacturing method according to claim 4, characterized in that in step 4, the drying temperature of the dryer is 60-80°C, and the drying time is 3-15 min.

6. The novel environmentally friendly rice straw cat litter manufacturing method according to claim 5, characterized in that in step 5, the power of the ultraviolet lamp is 15-40W, and the irradiation time is 15-20min.

Images