Cat litter and preparation method thereof

Abstract

To provide a cat litter and a preparation method thereof.SOLUTION: The cat litter has a core-shell structure, including: a core, containing 100 pts.mass of inedible plant fibers, 0.6-12 pts.mass of clumping agents, 0.6-12 pts.mass of water-absorbing agents, 0.13-2.23 pts.mass of breeding improvement agents, 0.13-2.23 pts.mass of deodorizing agents, and 0.13-2.23 pts.mass of anti-mold agents; and a shell layer, containing 100 pts.mass of inedible plant fibers, 99.5-600 pts.mass of clumping agents, 3.33-100 pts.mass of water-absorbing agents, 33.3-300 pts.mass of breeding improvement agents, 3.33-100 pts.mass of deodorizing agents, and 0.66-20 pts.mass of anti-mold agents. The mass ratio of the shell layer to the core is 1:(4-5). The cat litter of the present invention has improved water absorbency, clumping ability, low dust generation, water solubility and antibacterial and deodorizing functions, and is applicable to pet mats used in various intelligent cat litter boxes.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present application is in the technical field of pet cleaning products, and more particularly, to cat litter and a method for making the same. [Background technology]

[0002] In order to facilitate cat owners to clean up cat feces in a timely manner, to free the owners' hands, and to avoid the huge odor released when removing feces by hand, cat litter has appeared on the market. Cat litter is for artificially bred cats to bury feces and urine, and generally has relatively good water absorption. Cat litter is classified into organic cat litter and inorganic cat litter according to chemical properties and raw materials. Organic cat litter is mainly paper cat litter and pea cat litter, and inorganic cat litter includes bentonite cat litter and silica gel cat litter.

[0003] Paper-based cat litter has poor water absorption and cohesion. Pea cat litter contains putrefactive components such as protein and fat contained in pea residue and soybean meal, and these components in cat litter are prone to produce putrefactive odors in a humid environment during use, which not only fails to achieve the deodorizing effect but also becomes the source of odor. The main drawback of bentonite cat litter is the dust problem, and the excessive dust can cause urinary system infection and respiratory tract infection in cats if care is not taken. Silica gel cat litter is difficult to cohere, has large particles, is uncomfortable, and is inconvenient to use, so it cannot be discharged directly from the toilet. Summary of the Invention

[0004] In view of the above, the present application aims to provide cat litter and a manufacturing method thereof, as well as a pet mat that is easily absorbent, has excellent cohesion, is dust-free, has excellent water solubility, has antibacterial and deodorizing functions, and can be applied to various intelligent cat litter boxes.

[0005] In a first aspect, embodiments of the present application provide a core-shell structured cat litter, comprising: A core comprising 100 parts by weight of inedible vegetable fiber, 0.6 to 12 parts by weight of a cohesive factor, 0.6 to 12 parts by weight of a water absorption factor, 0.13 to 2.23 parts by weight of an aquaculture improvement factor, 0.13 to 2.23 parts by weight of a deodorizing factor, and 0.13 to 2.23 parts by weight of an antifungal factor; a shell layer covering the core and including 100 parts by mass of inedible vegetable fiber, 99.5 to 600 parts by mass of a cohesive factor, 3.33 to 100 parts by mass of a water absorption factor, 33.3 to 300 parts by mass of an aquaculture improvement factor, 3.33 to 100 parts by mass of a deodorizing factor, and 0.66 to 20 parts by mass of an antifungal factor; Including, The mass ratio of the shell layer to the core is 1:(4 to 5).

[0006] According to an embodiment of one aspect of the present application, the cat litter comprises: The moisture content of the cat litter is between 5% and 10%. The cat litter must be able to pass through a 10 mesh filter. The dust content of cat litter is 0.05% or less. The sediment density of the cat litter is 280-400g / L. The cat litter is rod-shaped, the core is rod-shaped, the diameter of the rod is 2 to 3.5 mm, and the ratio of the length to the diameter of the rod is (1 to 3):1; and The thickness of the shell layer is 0.5mm to 3mm. Satisfy at least one of the following:

[0007] According to an embodiment of one aspect of the present application, the inedible plant fiber satisfies at least one of the following conditions: The non-edible plant fibers include one or more of bagasse fiber, bamboo fiber, corn cob fiber, eucalyptus fiber, Pennisetum giganteum fiber, straw fiber, straw grass fiber, and bamboo shoot bark fiber.

[0008] According to one embodiment of the present application, the inedible plant fiber in the cat litter passes through a filter of 80 to 100 mesh.

[0009] According to an embodiment of one aspect of the present application, the flocculation factor comprises one or more of whey protein, sodium alginate, corn protein, montmorillonite, carboxymethylcellulose and derivatives, guar gum, native starch, pregelatinized starch, and Jelly Glue.

[0010] According to an embodiment of one aspect of the present application, the water absorption agent comprises one or more of polyacrylates, starch acrylate polymers, starch-acrylonitrile graft copolymers, acrylamide-acrylonitrile-acrylic acid terpolymers, polyacrylamides and derivatives, and polyvinyl alcohol.

[0011] According to an embodiment of one aspect of the present application, the aquaculture improvement factor includes one or more of attapulgite, polyacrylamide-attapulgite composite adsorbent, high purity nano-modified montmorillonite, plant essential oils, sodium aluminosilicate hydrate, diatomaceous earth, and zeolite.

[0012] According to an embodiment of one aspect of the present application, the deodorizing agent includes one or more of allophane, hydrophilically modified extra-fine white carbon, baking soda, nano zinc oxide, and nano titanium dioxide.

[0013] According to an embodiment of one aspect of the present application, the antifungal agent includes one or more of esterified glucomannan, sodium calcium aluminosilicate hydrate, silver-loaded zirconium phosphate antimicrobial powder, copper-loaded phosphate antimicrobial powder, organic zinc ion antimicrobial powder, 5-chloro-2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolin-3-one, 4,5-dichloro-2-n-octyl-3-isothiazolin-one, 2-methyl-4-isothiazolin-3-one, and N-octyl-4-isothiazolin-3-one.

[0014] According to a second aspect, an embodiment of the present application provides a method for producing cat litter according to the first aspect, the method comprising the steps of: Supply the first raw material of the core, where the first raw material includes the composition of the core in the cat litter of the first aspect and 120 to 100 parts by mass of water. Supply the second raw material of the shell layer, where the second raw material includes the composition of the shell layer in the cat litter of the first aspect and 133 to 1000 parts by mass of water. Mix and perform the first stirring on the first raw material to obtain a first mixture. Perform granulation and the first sieving on the first mixture to obtain a core intermediate product. Mix and perform the second stirring on the second raw material to obtain a shell layer mixture. Moisten the core intermediate product, and coat the moistened core intermediate product with the shell layer mixture to produce a coated mixture. Successively perform the second sieving, drying, and the third sieving on the coated mixture to produce cat litter.

[0015] According to an embodiment of one aspect of the present application, the manufacturing method includes: The rotation speed of the first stirring is 5 to 850 r / min, and the time of the first stirring is 0.5 to 5 minutes. The rotation speed in the case of granulation is 800 to 1000 r / min. The rotation speed of the second stirring is 0 to 1500 r / min, and the time of the second stirring is 0.5 to 3 minutes. The water content of the core intermediate product is 45% or less. The core intermediate product is rod-shaped, the diameter of the core intermediate product is controlled to be 2 to 3.5 mm, and the ratio of the length to the diameter of the core intermediate product is (1 to 3):1. The water content of the shell layer mixture is 50% or less. The rotation speed of the device in the case of coating is 30 to 60 r / min, and the coating time is 2 to 6 minutes. The water content of the coated mixture is 45% or less. The particle size m of the product after the second sieving is 5 mesh < m < 8 mesh. The particle size n of the product after the third sieving is 8 mesh < n < 12 mesh, and optionally 10 mesh. The drying temperature is 65℃~75℃; and After drying, the dried product is polished and shaped, the rotation speed of polishing is 30-60r / min, and the polishing time is 15-30min; Satisfy at least one of the following:

[0016] The beneficial effects of the present application include at least the following: 1. The cat litter of the present application comprises a core and a shell layer, each of which contains inedible plant fiber, a flocculating factor, a water-absorbing factor, a culture improvement factor, a deodorizing factor, and an anti-mold factor, and each component acts synergistically to give the cat litter excellent flocculating and hygroscopic properties, realizes flocculated cat litter and cat litter feces wrapping with urine, effectively separates it from non-flocculated clean cat litter by washing, does not waste unused cat litter, and is less likely to cause odor or mold in the flocculated part of the cat feces. In addition, the cat litter is mainly made of inedible plant fiber, which gives the cat litter good water solubility, and the flocculated cat litter after use can be directly flushed down the toilet. 2. The cat litter of the present application comprises a core and a shell layer, each of which contains inedible plant fibers. Compared with bentonite cat litter, tofu / bentonite mixed cat litter, and tofu cat litter, the cat litter of the present application has the characteristics of being lightweight and having a low specific gravity, making it easy to stock, transport, and replace the cat litter. 3. The cat litter of the present application encases the core with a shell layer, and the mass ratio of the shell layer to the core is within an appropriate range, which is beneficial to the clumping performance and the reduction of the dust reduction rate of the cat litter, and is conducive to the clumping of the cat litter after it absorbs moisture and the encasement of feces in the cat litter; and in cooperation with related processes, the dust content of the plant fiber cat litter is strictly controlled, and compared with bentonite cat litter, tofu / bentonite mixed cat litter, and tofu cat litter, it has the characteristics of ultra-low dust, which is beneficial to the health of the respiratory systems of pets and owners. [Brief description of the drawings]

[0017] In order to more clearly explain the technical solutions of the embodiments of the present application, the following briefly introduces drawings that need to be used in the embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without requiring creative efforts.

[0018] [Figure 1] 1 shows the actual cat litter of Example 1 of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In order to make the application objectives, technical solutions and beneficial technical effects of the present application more clear, the present application will be further described in detail below with reference to examples. It should be understood that the embodiments described herein are only for illustrating the present application, and are not intended to limit the present application.

[0020] For the sake of brevity, the present application explicitly discloses some numerical ranges. However, any lower limit may be combined with any upper limit to form an unspecified range, and any lower limit may be combined with any other lower limit to form an unspecified range, and similarly, any upper limit may be combined with any other upper limit to form an unspecified range. It should be noted that, although not explicitly stated, each point or single value between the range endpoints is included within this range. Thus, each point or single value can be combined with any other point or single value as its own lower limit or upper limit, or with any other lower limit or upper limit to form an unspecified range.

[0021] In the description of this application, unless otherwise specified, "more than or equal to" and "less than or equal to" are inclusive of the relevant number, and "multiple types" in "one type or multiple types" means two types or more than two types.

[0022] The above-mentioned contents of the present application are not intended to describe each embodiment or each realization of the disclosure in the present application. Exemplary embodiments are more specifically illustrated below. In several places throughout the present application, a series of embodiments are provided as a guide, and these embodiments can be used in various combination forms. In each example, only representative examples are provided and should not be construed as exhaustive.

[0023] In the process of the built-in lattice plate in the intelligent cat litter box rotating to clean cat feces, the cat litter particle agglomerates flow with the rotation of the lattice plate. The flow of the particle agglomerates is essentially due to the imbalance of particle forces in the particle agglomerates. From the analysis of the forces applied to the particles, it can be seen that the acting forces in the particle flow process include gravity, adhesion force between particles, friction force, electrostatic force, etc., and the forces that have the greatest impact on particle fluidity are gravity and adhesion force between particles.

[0024] The factors affecting the fluidity of cat litter are complex, and research has shown that the particle size distribution, particle shape, and sphericity of cat litter particles have an important effect on its fluidity. In addition, factors such as water content, electrostatic voltage, porosity, pile density, and internal friction coefficient also affect the fluidity of particles. It is of great significance to analyze the influencing factors of particle fluidity and improve the fluidity of particle aggregates in a scientific way.

[0025] The present application provides a cat litter, which includes a core and a shell layer, and the composition and mass ratio of the core and shell layer affect the fluidity of the cat litter, so that the cat litter of the present application can be freely applied to various intelligent cat litter boxes on the market, and the cat litter has the goal of universality for intelligent cat litter boxes, so that the cat litter clumped with urine and the cat litter containing feces can be effectively washed and separated from the non-clumped clean cat litter, the unused cat litter is not wasted, the clumped parts of the cat feces are less likely to remain in the clean cat litter, and the remaining odor is reduced. cat litter

[0026] In a first aspect, embodiments of the present application provide a core-shell structured cat litter, the cat litter comprising: A core comprising 100 parts by weight of inedible vegetable fiber, 0.6 to 12 parts by weight of a cohesive factor, 0.6 to 12 parts by weight of a water absorption factor, 0.13 to 2.23 parts by weight of an aquaculture improvement factor, 0.13 to 2.23 parts by weight of a deodorizing factor, and 0.13 to 2.23 parts by weight of an antifungal factor; a shell layer covering the core and including 100 parts by mass of inedible vegetable fiber, 99.5 to 600 parts by mass of a cohesive factor, 3.33 to 100 parts by mass of a water absorption factor, 33.3 to 300 parts by mass of an aquaculture improvement factor, 3.33 to 100 parts by mass of a deodorizing factor, and 0.66 to 20 parts by mass of an antifungal factor; Including, The mass ratio of the shell layer to the core is 1:(4 to 5).

[0027] According to the embodiment of the present application, the cat litter of the present application is designed with a differentiated core and shell layer, so that the shell layer has an appropriate cohesion factor by mass, which is favorable for cohesion during the production of the cat litter. When the cat litter is used, the cohesion factor of the shell layer by mass is favorable for the cat litter to absorb moisture in cat urine and cat feces under the action of the absorption factor of the shell layer by mass, so that cohesion can be performed and contamination of other cat litter can be avoided. The water absorption factor of the shell layer absorbs moisture in cat urine and cat feces, and the core layer is favorable for retaining the absorbed moisture under the joint action of the appropriate mass of non-edible plant fiber and water absorption factor. By selecting an appropriate mass ratio of the shell layer to the core, a pet mat with the functions of water absorption, cohesion, antibacterial properties, and deodorization and applicable to various intelligent cat litter boxes was manufactured.

[0028] The shell layer in the cat litter has water absorption and water absorption coagulation properties, providing the cat litter with excellent water absorption performance, preventing the inconvenience of cleaning caused by cat urine suddenly leaking to the bottom of the sand basin, and at the same time providing the cat litter with good rapid cohesion and excellent cohesion falling strength.

[0029] The core of the cat litter has high hardness through the selection of raw materials, control of moisture content, and modification of weight gain, and the core and shell layer have an appropriate mass ratio, providing the cat litter with high body hardness, body specific gravity, and excellent shape support.

[0030] The cat litter made mainly from plant fibers of the present application is dust-free, safe, non-polluting, biodegradable, made from naturally renewable raw materials, has rapid water absorption, strong clumping, deodorization, and other universal characteristics suitable for various intelligent cat litter boxes.

[0031] The cat litter of the present application has the functions of water absorption, clumping, antibacterial properties and deodorization, and can be applied to various intelligent cat litter boxes.

[0032] In some alternative embodiments, the sphericity of the cat litter is such that the cumulative distribution rate of particles with a sphericity value of 0.7 or more is 88% or more, and the cumulative distribution rate of particles with a sphericity value of 0.3 or less is 1.5% or less. By controlling the sphericity of the cat litter, the friction and adhesion between the cat litter particles can be reduced, the flowability index of the cat litter particles can be improved, and the probability of particle bridges can be reduced to zero. In addition, the dust content of the cat litter can be strictly controlled by multi-stage and multiple sieving, which can eliminate the viscosity caused by fine dust in the flow process of the particles, and thus improve the flowability index of the cat litter.

[0033] The relationship between particle size and particle fluidity of different particles is analyzed. Spherical particles have the best fluidity because of the smallest contact area between them, followed by cubic particles, other irregular shaped particles have normal fluidity, and sheet, branch and needle particles have poor fluidity because of many flat contact points on their outer surfaces and shear forces between irregular particles.

[0034] According to an embodiment of the present application, when the mass ratio of the shell layer to the core is within the above range and the cat litter deposition density is controlled within an appropriate range, the cat litter in the related art, due to its light weight and low specific gravity, does not follow the rotation of the cat litter pond when the intelligent cat litter box rotates to clean up the cat feces, but slides down from the bottom of the cat litter pond in the direction of rotation, resulting in poor fluidity and low grating passability, thereby reducing the problem, and the problem is solved by adopting an appropriate density.

[0035] In some alternative embodiments, the pile density of the cat litter is 280-400 g / L.

[0036] According to the embodiment of the present application, the deposition density of tofu cat litter is about 500-600g / L, that of tofu / bentonite mixed cat litter is about 700-800g / L, and that of bentonite cat litter is as high as 1000g / L, whereas the deposition density of the plant fiber cat litter of the present invention is only 280-400g / L. The light weight and low specific gravity characteristics of the present application make it convenient to stock, transport and replace the cat litter.

[0037] In some alternative embodiments, the moisture content of the cat litter is between 5% and 10%.

[0038] According to the embodiment of the present application, when the water content of the cat litter is within the above range, it can improve the comfort of the cat litter when it comes into contact with the cat, while improving the cohesion of each component in the cat litter, making it have a certain amount of water absorption ability, and contributing to adsorbing moisture in the cat feces and realizing cohesion. In addition, when the water content of the cat litter is within the above range, the mutual attraction and adhesion between particles is reduced due to the electrostatic effect caused by the cat litter product granules being too dry, improving the fluidity index of the cat litter particles, and improving the fluidity of the cat litter and the passability of the non-cohesive clean cat litter during the cleaning process of the cat feces by the rotation of the intelligent cat litter box against the openwork lattice of the lattice board.

[0039] In some alternative embodiments, the cat litter passes through a 10 mesh filter. Optionally, the cat litter can pass through a 10 mesh, 20 mesh, 30 mesh, 40 mesh, 50 mesh filter, or any range therein.

[0040] The cat litter passing through a 10 mesh filter means that the pore size of the 10 mesh filter is usually about 2.00 to 3.5 mm. A 20 mesh sieve usually has a pore size of about 1.00 mm. This cat litter can pass through 20 mesh and 25 mesh filters, and can also necessarily pass through filters with pore sizes such as 10 mesh. The cat litter passing through a 10 mesh filter is applicable to the situation where the cat litter passes through the gaps between the lattice plates in an intelligent cat litter box during use.

[0041] According to an embodiment of the present application, the cat litter passes through a 10 mesh filter and its particle size meets the above-mentioned conditions, so that the fluidity of the cat litter containing non-edible plant fibers can be improved in each process of forming the cat litter with respect to the raw materials and forming process, and the non-agglomerated clean cat litter can be retained in the gaps between the lattice plates in the intelligent cat litter box, so that the unused cat litter is not wasted and the agglomerated cat litter containing cat feces can be directly discharged and discharged directly from the sewer such as the toilet, with good fluidity and without causing clogging.

[0042] In some alternative embodiments, the dust content of the cat litter is 0.05% or less.

[0043] According to an embodiment of the present application, when the dust content of cat litter is within the above range, it is advantageous for providing a clean and comfortable environment for cats, reduces the impact of dust on the cat's urinary and respiratory systems, and is advantageous for the cat's health.

[0044] In some alternative embodiments, the pile density of the cat litter is 280-400 g / L.

[0045] Pile density is the density of a pile of particles or powder material formed under specific conditions. It is usually expressed as the ratio of mass to volume, usually in grams per cubic centimeter (g / cm 3 ) or kilograms per cubic meter (kg / m 3 ).

[0046] In some alternative embodiments, the cat litter is rod-shaped, the core is rod-shaped, the diameter of the rod is 2-3.5 mm, the ratio of length to diameter of the rod is (1-3):1, and the thickness of the shell layer is 0.5 mm-3 mm.

[0047] According to an embodiment of the present application, when the cat litter is rod-shaped, the core is rod-shaped, the rod diameter is 2-3.5 mm, the ratio of the length to the diameter of the rod is (1-3):1, and the thickness of the shell layer is 0.5 mm-3 mm, the cat litter having the above shape, the ratio of the length to the diameter of the rod, and the thickness of the shell layer is applied to an intelligent cat litter box, and can completely separate the cat litter clumped with urine and the cat litter containing faeces from the non-clumped clean cat litter, thereby realizing the purpose of not wasting unused cat litter.

[0048] According to an embodiment of the present application, the device controls the particle size and shape of cat litter and improves the sphericity of cat litter particles. By covering the core with a shell, the shell and the core have a good degree of bonding, which improves the uniformity of the shape and size of cat litter particles, improves the sphericity of cat litter particles, and helps to improve the flowability index of cat litter.

[0049] According to an embodiment of the present application, the particle size, shape, interaction between particles, and water content of the cat litter affect the fluidity of the cat litter, which controls the size and size distribution of the cat litter particles relative to the size of the openwork lattice of the lattice plate of the intelligent cat litter box, so that the cat litter of the present application can be freely applied to various intelligent cat litter boxes on the market, and the goal of the cat litter having the universality to pass through the intelligent cat litter box can be achieved, and the goal of washing and separating the cat litter clumped with urine and the cat litter containing feces from the non-clumped clean cat litter is achieved, so that unused cat litter is not wasted, and the clumped parts of the cat litter are less likely to cause odor lingering due to remaining in the washed cat litter is achieved.

[0050] As an example of the present application, cat litter includes a core containing 100 parts by mass of inedible vegetable fiber, 0.6 to 8 parts by mass of a cohesion factor, 0.6 to 8 parts by mass of a water absorption factor, 0.13 to 1.23 parts by mass of a culture improvement factor, 0.13 to 2.23 parts by mass of a deodorizing factor, and 0.13 to 2.23 parts by mass of an antifungal factor, and a shell layer covering the core and containing 100 parts by mass of inedible vegetable fiber, 99.5 to 400 parts by mass of a cohesion factor, 3.33 to 100 parts by mass of a water absorption factor, 33.3 to 300 parts by mass of a culture improvement factor, 3.33 to 100 parts by mass of a deodorizing factor, and 0.66 to 20 parts by mass of an antifungal factor.

[0051] Here, the inedible plant fiber includes one or more of bagasse fiber, bamboo fiber, corncob fiber, and eucalyptus fiber. The flocculating agent includes one or more of sodium carboxymethylcellulose, guar gum, natural starch, and pregelatinized starch. The mass ratio of the shell layer to the core is 1:(4-5), the moisture content of the cat litter is 5%-10%, the cat litter passes through a 10-mesh filter, the sedimentation density of the cat litter is 280-400g / L, the cat litter is rod-shaped, the core is rod-shaped, the diameter of the rod is 2-3.5mm, the ratio of the length to the diameter of the rod is (1-3):1, and the thickness of the shell layer is 0.5mm-3mm. The dust content of the cat litter is less than 0.05%, the fluidity index of the cat litter is 85-95, the clump weight of the cat litter is 25-30 g / 20 g water, the clump strength of the cat litter is 90%-98%, the water absorption rate of the cat litter is 200%-300%, and the mold onset of the cat litter is more than 30 days.

[0052] As another example of the present application, cat litter includes a core containing 100 parts by mass of inedible vegetable fiber, 0.6 to 10 parts by mass of a cohesion factor, 0.6 to 10 parts by mass of a water absorption factor, 0.13 to 2.23 parts by mass of an aquaculture improvement factor, 0.1 to 2.23 parts by mass of a deodorizing factor, and 0.13 to 2.23 parts by mass of an antifungal factor, and a shell layer covering the core and containing 100 parts by mass of inedible vegetable fiber, 99.5 to 100 parts by mass of a cohesion factor, 50 to 100 parts by mass of a water absorption factor, 33.3 to 300 parts by mass of an aquaculture improvement factor, 3.33 to 100 parts by mass of a deodorizing factor, and 0.66 to 20 parts by mass of an antifungal factor.

[0053] Here, the inedible plant fiber includes one or more of bagasse fiber, bamboo fiber, corncob fiber, and eucalyptus fiber. The flocculation factor includes one or more of sodium carboxymethylcellulose, guar gum, natural starch, and pregelatinized starch. The mass ratio of the shell layer to the core is 1:(4-5), the moisture content of the cat litter is 5%-10%, the cat litter passes through a 10-mesh filter, the sedimentation density of the cat litter is 280-400g / L, the cat litter is rod-shaped, the core is rod-shaped, the diameter of the rod is 2-3.5mm, the ratio of the length to the diameter of the rod is (1-3):1, and the thickness of the shell layer is 0.5mm-3mm. The dust content of the cat litter is less than 0.05%, the fluidity index of the cat litter is 85-95, the clump weight of the cat litter is 25-30g / 20g water, the clump strength of the cat litter is 90%-98%, the water absorption rate of the cat litter is 220%-250%, and the mold onset of the cat litter is more than 30 days.

[0054] As an example, Figure 1 shows the actual appearance of cat litter.

[0055] In some alternative embodiments, the inedible plant fibers include one or more of bagasse fiber, bamboo fiber, corncob fiber, eucalyptus fiber, macrocarpa fiber, straw fiber, linden fiber, and bamboo shoot bark fiber.

[0056] According to an embodiment of the present application, by using the above-mentioned fibers such as bamboo fiber, corn cob powder, and eucalyptus powder, the hard, elastic, strong and dense plant fiber powder is used as the main raw material for the core support part of the cat litter molding, which can provide the cat litter with high body hardness and excellent shape support, and contribute to further control of the cat litter particle shape and size, as well as the development of post-processing processes such as the formation of a shell layer on the core and grinding and shaping, thereby improving the uniformity of the cat litter particle shape and size, improving the fluidity index and sphericity of the cat litter particles, improving the high fluidity of the non-agglomerated clean cat litter, and improving the pass-through rate of the openwork lattice of the lattice board of the intelligent cat litter box.

[0057] According to an embodiment of the present application, the natural plant fiber used in the non-edible plant fiber is derived from agricultural and forestry activities, belongs to a non-edible renewable resource, is environmentally friendly and sustainable, has no restrictions on the origin of raw materials, and has a sufficient supply of naturally renewable non-edible plant fiber resources.

[0058] In some alternative embodiments, the particle size of the inedible plant fiber in the cat litter is such that it passes through an 80 to 100 mesh filter.

[0059] According to an embodiment of the present application, by controlling the particle size of the non-edible plant fiber in the cat litter to fall within the above range, the water solubility of the cat litter is improved, making it easier to discharge from sewers such as indoor toilets, providing convenience to the owner.

[0060] In some alternative embodiments, the flocculation agent comprises one or more of whey protein, sodium alginate, corn protein, montmorillonite, carboxymethyl cellulose and derivatives, guar gum, native starch, pregelatinized starch, and jelly glue.

[0061] According to an embodiment of the present application, the above-mentioned cohesion factor can improve the cohesion between inedible plant fibers and between inedible plant fibers and other components. The above-mentioned cohesion factor can improve the cohesion between cat litter and cat litter, and between cat litter and cat feces and other feces, making it easier to cover cat feces and reducing contamination of other cat litters.

[0062] In some alternative embodiments, the water absorption agent comprises one or more of polyacrylates, starch acrylate polymers, starch-acrylonitrile graft copolymers, acrylamide-acrylonitrile-acrylic acid terpolymers, polyacrylamides and derivatives, and polyvinyl alcohol.

[0063] According to an embodiment of the present application, the water-absorbing factor works in cooperation with the inedible plant fiber to adsorb moisture in cat feces and reduce contamination of other cat litters, while the inedible plant fiber acts with the water-absorbing factor, has a certain water absorption and water retention performance, reduces the seepage of moisture in the adsorbed cat feces, and reduces contamination of other cat litters.

[0064] In some alternative embodiments, the aquaculture improvement agent comprises one or more of attapulgite, polyacrylamide-attapulgite composite adsorbent, high purity nano-modified montmorillonite, plant essential oils, sodium aluminosilicate hydrate, diatomaceous earth, and zeolite.

[0065] According to an embodiment of the present application, the core layer of plant fiber cat litter is modified by increasing the weight of the cat litter using a culture improvement factor, so that the flowability index of the modified cat litter is improved, making it easier to pass through the grates of the cat litter box, and reducing the waste of cat litter.

[0066] In some alternative embodiments, the odor eliminating agent comprises one or more of allophane, hydrophilically modified extra-fine white carbon, baking soda, nano zinc oxide, and nano titanium dioxide.

[0067] In some alternative embodiments, the antifungal agent comprises one or more of esterified glucomannan, sodium calcium aluminosilicate hydrate, silver-loaded zirconium phosphate antimicrobial powder, copper-loaded phosphate antimicrobial powder, organic zinc ion antimicrobial powder, 5-chloro-2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolin-3-one, 4,5-dichloro-2-n-octyl-3-isothiazolin-one, 2-methyl-4-isothiazolin-3-one, and N-octyl-4-isothiazolin-3-one. How cat litter is made

[0068] According to a second aspect, an embodiment of the present application provides a method for producing cat litter of the first aspect, said method comprising: Providing a first raw material for the core, the first raw material comprising 100 parts by weight of inedible vegetable fiber, 20-100 parts by weight of water, 0.6-12 parts by weight of a cohesion factor, 0.6-12 parts by weight of a water absorption factor, 0.13-2.23 parts by weight of an aquaculture improvement factor, 0.13-2.23 parts by weight of a deodorizing factor, and 0.13-2.23 parts by weight of an antifungal factor; Providing a second raw material for the shell layer, the second raw material comprising 100 parts by weight of inedible vegetable fiber, 133 to 1000 parts by weight of water, 99.5 to 600 parts by weight of a cohesion factor, 3.33 to 100 parts by weight of a water absorption factor, 33.3 to 300 parts by weight of an aquaculture improvement factor, 3.33 to 100 parts by weight of a deodorizing factor, and 0.66 to 20 parts by weight of an antifungal factor; performing mixing and a first agitation on the first ingredient to obtain a first mixture; subjecting the first mixture to granulation and a first sieving to obtain a core intermediate product; performing mixing and a second agitation on the second ingredient to obtain a shell layer mixture; wetting a core intermediate product and coating the wetted core intermediate product with a shell layer mixture to produce a coating mixture; and sequentially subjecting the coating mixture to a second sieving, drying, and a third sieving to produce cat litter.

[0069] According to an embodiment of the present application, a two-stage method of granulation molding and mixing of outer layer coating material is adopted to reduce the problems of the molded cat litter having loose appearance, low completeness and much debris, and a dedicated coating device is adopted based on the core-press molded granules, the core-press molded granules are wetted and coated by water jet, and the coated shell layer is shaped, so that the cat litter produced by this process has a compact appearance, high completeness and little debris, and improves the uniformity of the particle shape and size of the cat litter, which is helpful in improving the flowability index of the cat litter.

[0070] In some optional embodiments, the rotation speed of the first stirring is 5 to 850 r / min, and the time of the first stirring is 0.5 to 5 minutes.

[0071] In some alternative embodiments, the rotation speed during granulation is 800 to 1000 r / min.

[0072] In some optional embodiments, the rotation speed of the second stirring is 0 to 1500 r / min, optionally 5 to 1000 r / min, and the time of the second stirring is 0.5 to 3 minutes.

[0073] In some optional embodiments, before providing the first material of the core or providing the second material of the shell layer, the inedible plant fiber raw material of the core of the cat litter particle is ground to a fineness of 200 to 400 mesh using a plant fiber grinding device.

[0074] In some alternative embodiments, subjecting the first ingredient to a first agitation to obtain a first mixture includes: Using an agitation mixer, the non-edible plant fiber in the first raw material is uniformly mixed, and the agitation rotation speed is set to 0 to 850 r / min and the agitation time is set to 0.5 to 3 minutes; Add water to the inedible plant fiber in a mass ratio, add water while stirring, continue stirring after the water addition is completed, the rotation speed of the stirrer is 0-850 r / min, the total stirring time is 0.5-3 minutes, and after the stirring and mixing is completed, leave it for subsequent use to obtain a first raw material mixture; Using a stirring and mixing device, the materials of the flocculation factor, the water absorption factor, the aquaculture improvement factor, the deodorizing factor, and the antifungal factor are uniformly stirred and mixed in the above-mentioned mass ratio, the rotation speed of the stirring is 0 to 1500 r / min, and the stirring time is 0.5 to 3 minutes, thereby obtaining a second raw material mixture; mixing and stirring the first raw material mixture and the second raw material mixture at a rotation speed of 0 to 850 r / min for a total stirring time of 0.5 to 5 minutes to obtain a first mixture.

[0075] In some alternative embodiments, subjecting the first mixture to granulation and a first sieving to obtain a core intermediate product includes: The first mixture is granulated by a granulator, the hole diameter of the die of the granulator used is 2mm-3.5mm, the length of the die hole is 8mm-20mm, the compression ratio of the die is 1.5-9, both ends of the die hole are horn-shaped outlets, the vertical depth of the horn-shaped outlet is 1mm, the tangent of the arc surface of the horn-shaped outlet and the plane of the die form an included angle of 60°, the cutter of the granulator is in a horizontal state, the distance between the blade and the plane of the die is 0.1-0.5mm, the diameter of the core of the extruded cat litter particles is controlled to 2-3.5mm, the ratio of length to diameter is controlled to (1-3):1, the operating rotation speed of the granulator is 800-1000r / min, and then a first sieving is performed to obtain a core intermediate product.

[0076] In some embodiments, the first sieving includes sieving the mixture of the core intermediate product obtained by the core pressing and the debris and powder generated by the core through an 8-mesh filter. The particles after sieving are then subjected to the coating process of wetting and coating. Removing the debris and powder through sieving avoids waste of coating material and does not generate a large amount of debris particles during the coating process.

[0077] In some alternative embodiments, the core intermediate product is rod-shaped, the diameter of the core intermediate product is controlled to be 2-3.5 mm, and the ratio of the length to the diameter of the core intermediate product is (1-3):1.

[0078] In some alternative embodiments, the rotation speed of the apparatus during coating is 30-60 r / min, and the coating time is 2-6 minutes.

[0079] In some alternative embodiments, the moisture content of the core intermediate product is 45% or less.

[0080] In some alternative embodiments, the moisture content of the shell layer mixture is 50% or less. In some alternative embodiments, the moisture content of the coating mixture is 45% or less.

[0081] According to the embodiment of the present application, by strictly controlling the moisture content within an appropriate range at each stage of cat litter molding, the molding of the cat litter is ensured and the hardness of the cat litter is improved, and the mutual attraction and adhesion between particles caused by electrostatic effects due to drying during the manufacturing and use of the cat litter is reduced, thereby improving the fluidity index.

[0082] Controlling the moisture content of each semi-finished product and finished product includes controlling the moisture content of the press-molded cat litter core to 45% or less, controlling the moisture content of the wet cat litter after the shell layer coating is completed to 45% or less, and controlling the moisture content of the cat litter after the shell layer coating is completed and dried to 5-10%.

[0083] In some alternative embodiments, the coating mixture is second screened through a 5 mesh filter. The coating mixture can be understood as the large particles formed by the core particles being bonded together through the wet coating process in the coating stage, and after the coating is completed, all the coated particles are screened through a 5 mesh filter, all the coated particles larger than 5 mesh are dried, and the screened coated particles smaller than 5 mesh are conveyed to enter the core press granulation process.

[0084] In some alternative embodiments, polishing and shaping may be followed by multiple sieving steps.

[0085] According to the embodiment of the present application, there is a problem that a large amount of powder falls off from the coated granules exceeding 5 mesh after drying and grinding and shaping. After the grinding and shaping is completed, all the ground and shaped granules are sieved multiple times using an 8-12 mesh filter, and all the ground and shaped granules less than the target particle size are stored in inventory, and the screened powder particles exceeding 1 and less than the target particle size are transported to enter the core press granulation process, and the dust content is controlled to be 0.05% or less.

[0086] In addition, the multiple sieving in the present application may be multiple sieving of different particle sizes, or multiple sieving of the same particle size. The multiple sieving process strictly controls the large particle and dust content in the cat sand product, eliminates the viscosity caused by fine dust during the flow process of the cat sand, and thus improves the flowability index of the cat sand particles.

[0087] In some alternative embodiments, subjecting the second ingredient to the mixing and second agitation to obtain the shell layer mixture includes: Grinding the non-edible plant fiber raw material in the second raw material to a fineness of 80 to 100 mesh; Using a stirring and mixing device, the materials of the inedible plant fiber, the coagulation factor, the water absorption factor, the aquaculture improvement factor, the deodorizing factor, and the anti-mold factor in the second raw material are uniformly stirred and mixed in the above-mentioned mass ratio to obtain a shell layer mixture, the stirring rotation speed being 0 to 1500 r / min, and the stirring time being 0.5 to 3 minutes.

[0088] In some alternative embodiments, coating the moistened core intermediate product with a shell layer mixture to produce a coating mixture can include: After the core intermediate product is wet-treated by the coating device, the shell layer mixture is introduced into it. Optionally, it is introduced while rotating. The rotation speed of the device is 30 - 60 r / min, the coating time is 2 - 6 minutes, and the thickness of the wetted shell layer of the coating is 0.5 mm or more.

[0089] In some alternative embodiments, wetting the core intermediate product involves adopting a spraying process to wet-treat the core intermediate product in the rotating device, and the rotation speed of the device is 30 - 60 r / min.

[0090] In some alternative embodiments, the wetted core intermediate product is coated with the shell layer mixture, and the coating mixture is manufactured. The coating mixture is sequentially subjected to a second sieving, drying, and a third sieving to obtain cat litter.

[0091] In some alternative embodiments, the particle size m of the product after the second sieving is 5 mesh < m < 8 mesh.

[0092] In some alternative embodiments, the particle size n of the product after the third sieving is 8 mesh < n < 12 mesh, and optionally, it is 10 mesh.

[0093] In some alternative embodiments, the drying temperature is 65 - 75 °C.

[0094] In some alternative embodiments, after drying, it includes polishing and shaping the dried product. The rotation speed of polishing is 30 - 60 r / min, and the polishing time is 15 - 30 min.

[0095] According to an embodiment of the present application, the plant fiber cat litter particles after grinding and shaping are sieved and de-dusted. To address the problem of a large amount of powder falling off after drying and grinding and shaping for coated granules less than 8 mesh and more than 5 mesh, after grinding and shaping is completed, all the ground and shaped particles are sieved multiple times using a 10 mesh filter, and all the ground and shaped particles less than 10 mesh are put into inventory, and the powder particles more than 10 mesh are screened and then transported to the core press granulation process, so that the dust content of the ground and shaped particles less than 10 mesh is controlled to be below 0.05%, and a non-edible plant fiber product with universal suitability for intelligent cat litter box grates is obtained.

[0096] In response to the problem that cat litter is easily clogged in the grid due to bridging of cat litter particles, by polishing and shaping, the cat litter particles coated with a shell layer and dried are subjected to polishing and shaping processing, which reduces the friction between the cat litter particles, reduces the adhesive force between the cat litter particles, improves the sphericity and smoothness of the particle surface of the cat litter particles, improves the flowability index of the cat litter particles, reduces the probability of bridging of the cat litter particles to zero, and allows the non-agglomerated clean cat litter to pass through the openwork grid of the grid plate of the intelligent cat litter box. Working Example

[0097] The following examples will more specifically describe the contents of the present application, but these examples are merely illustrative, and it will be apparent to those skilled in the art that various modifications and changes can be made within the scope of the disclosure of the present application. All parts, percentages, and ratios described in the following examples are based on weight unless otherwise specified. In addition, all reagents used in the examples are commercially available or may be obtained by synthesis according to conventional methods, and may be used as they are without further treatment. In addition, the devices used in the examples are commercially available. Examples 1 to 3

[0098] This embodiment provides cat litter, the cat litter comprising: A core comprising 100 parts by weight of inedible vegetable fiber, 0.6 to 12 parts by weight of a cohesive factor, 0.6 to 12 parts by weight of a water absorption factor, 0.13 to 2.23 parts by weight of an aquaculture improvement factor, 0.13 to 2.23 parts by weight of a deodorizing factor, and 0.13 to 2.23 parts by weight of an antifungal factor; a shell layer covering the core and including 100 parts by mass of inedible vegetable fiber, 99.5 to 600 parts by mass of a cohesion factor, 3.33 to 100 parts by mass of a water absorption factor, 33.3 to 300 parts by mass of an aquaculture improvement factor, 3.33 to 100 parts by mass of a deodorizing factor, and 0.66 to 20 parts by mass of an antifungal factor; The mass ratio of the shell layer to the core was 1:(4 to 5). Specific raw materials and mass ratios of Examples 1 to 3 are shown in Table 1.

[0099] This embodiment provides a method for producing cat litter, which includes the following steps: (1) Using specialized plant fiber grinding equipment, grind the inedible plant fiber raw materials that are the core of the cat litter particles to a fineness of 200 to 400 mesh. (2) Using a specialized stirring and mixing device, mix each inedible plant fiber evenly in proportion, with the stirring rotation speed being 0-850 r / min and the stirring time being 0.5-3 minutes. (3) Add water to the inedible plant fiber of (2) in the above mass ratio, add water while stirring, continue stirring after water addition is completed, the rotation speed of the stirrer is 0-850 r / min, the total stirring time is 0.5-3 minutes, and after stirring and mixing is completed, leave it for subsequent use. (4) Using a specialized stirring and mixing device, uniformly stir and mix the materials of the coagulation factor, water absorption factor, aquaculture improvement factor, deodorization factor, and anti-mold factor in the above-mentioned mass ratio, with the stirring rotation speed being 0-1500 r / min and the stirring time being 0.5-3 minutes. (5) The stirred mixture of (4) is added to the mixture of inedible plant fiber and water of (3) while stirring, and stirring is continued after the addition of the materials of (4) is completed, the stirring rotation speed is 0 to 850 r / min, and the total stirring time is 0.5 to 5 minutes. (6) The mixture of (5) is fed into a specialized granulator to carry out continuous granulation, the die of the granulator used has a hole diameter of 2mm-3.5mm, the length of the die hole is 8mm-20mm, the compression ratio of the die is 1.5-9, both ends of the die hole are horn-shaped outlets, the vertical depth of the horn-shaped outlet is 1mm, the tangent of the arc surface of the horn-shaped outlet and the plane of the die form an included angle of 60°, the cutter of the granulator is horizontal, the distance between the blade and the plane of the die is 0.1-0.5mm, the core diameter of the extruded cat litter particles is controlled to be 2-3.5mm, and the ratio of length to diameter is controlled to be (1-3):1, and the operating rotation speed of the granulator is 800-1000r / min. (7) After the granulation of the cat litter core is completed, the granules obtained by the core press and the debris and powder generated by the core press are sieved through an 8-mesh filter, and the granules after sieving are used in the wetting and coating process. (8) Using specialized vegetable fiber crushing equipment, the inedible vegetable fiber raw materials required for the shell layer of the cat litter are crushed to a fineness of 80 to 100 mesh. (9) Using a specialized stirring and mixing device, the inedible plant fiber, coagulation factor, water absorption factor, aquaculture improvement factor, deodorizing factor, and antifungal factor materials of (8) are uniformly stirred and mixed in the above-mentioned mass ratio, the stirring rotation speed is 0 to 1500 r / min, and the stirring time is 0.5 to 3 minutes. (10) The complete particles obtained by sieving in (7) are subjected to a wetting treatment, the amount of water used in the wetting process is the amount of water in the shell layer component of the cat litter, and the core intermediate product of the cat litter in the rotating device is wet-treated by spraying, and the rotating speed of the device is 30-60 r / min. (11) Coat the cat litter core intermediate product after the wet treatment. After the wet treatment of (10) is completed, the cat litter core intermediate product is transferred to a specialized coating device. The coating device is rotated, and the cat litter shell layer material obtained by stirring and mixing in the above ratio of (9) is quickly added to the core intermediate product after the wet treatment, and added while rotating. The rotation speed of the device is 30-60r / min, the total coating time is 2-6 minutes, and the thickness of the shell layer of the coated cat litter is 0.5mm or more. (12) After the coating is completed for the large particles formed by the particle bonding in the wet coating process of (11), a 5 mesh filter is used to sieve all the coated particles, and the screened coated particles smaller than 5 mesh are conveyed to the core press granulation process, and the coated particles larger than 5 mesh are sent to an 8 mesh filter for sieving, and the coated particles smaller than 8 mesh and larger than 5 mesh are sent to the drying process, and the scraps and powder larger than 8 mesh are screened and conveyed to the core press granulation process. (13) Coated particles smaller than 8 mesh and larger than 5 mesh are dried at a drying temperature of 65 to 75°C, and the moisture content of the entire cat litter particle after drying is controlled to 5 to 10%. (14) After drying, the dried cat litter particles are put into a professional rotary polishing device to be polished and shaped. The rotation speed of the polishing device is 30-60 r / min, and the polishing time is 15-30 minutes. (15) After grinding and shaping, the plant fiber cat litter particles are sieved and de-dusted. In order to address the problem of a large amount of powder falling off after drying and grinding for the coated granules less than 8 mesh and more than 5 mesh, after grinding and shaping is completed, a 10 mesh filter is used to sieve all the ground and shaped particles multiple times, and all the ground and shaped particles less than 10 mesh are put into inventory. After the powder particles more than 10 mesh are screened, they are transported to the core press granulation process, and the dust content of the ground and shaped particles less than 10 mesh is controlled to below 0.05%, so as to obtain cat litter that is universal for the grids of intelligent cat toilets.

[0100] The parameters used in Examples 1 to 3 are shown in Table 2. Comparative Examples 1-2

[0101] The cat litter of this comparative example differs from that of Example 1 in the ingredients and manufacturing process of the cat litter as shown in Tables 1 and 2. Comparative Example 3

[0102] In this comparative example, commercially available tofu cat litter is provided, the ingredients of which include soybean residue accounting for 90% of the total mass of the tofu cat litter, with the remainder being a flocculant and a mold inhibitor. Comparative Example 4

[0103] The cat litter of this comparative example contains bentonite as an ingredient. Bentonite is heavy, so it requires a lot of effort to stock and replace the cat litter, and bentonite cat litter is dusty and hazardous to the respiratory and urinary systems of cats.

[0104] Table 1 is shown below.

[0105] [Table 1]

[0106] [Table 2] Testing Part

[0107] 1) Sedimentation density test: The mass of the sample that passed through a specific size funnel into a standard volume was weighed and the result was calculated.

[0108] Test equipment: Sediment density measuring device.

[0109] Analysis process: Put the cat litter sample into the upper funnel with the partition plate closed, make sure the sample amount of cat litter and the mouth of the funnel are aligned, open the partition plate, let the cat litter sample flow naturally into the tank below, scrape the upper vertebrae of the tank along the tank mouth, and weigh the sample in the tank.

[0110] Calculation results: The deposition density ρ is expressed in g / L and the calculation formula is as follows: ρ=m / v×100% During the ceremony: m is the mass of the sample in grams (g); v is the tank volume in milliliters (mL).

[0111] 1) Detection of cat litter pile density:

[0112] 2) Detection of moisture content: The device uses a program-controlled heating halogen lamp / infrared lamp to heat the sample, and automatically weighs it continuously up to a certain mass, and reports the results.

[0113] Test equipment: High-speed moisture meter: halogen / infrared lamp heating type, sensitivity specification is 0.001g.

[0114] Analysis process: Place about 2g of cat litter sample on the drying pan of the high-speed moisture meter and flatten it, and control the drying temperature at 105°C. Start the measurement program, measure for 10 minutes, and then end it to obtain the measurement results.

[0115] 3) Detection of fluidity index Fw: "Part 3: Determination of fluidity index" in GB / T 31057.3-2018 standard.

[0116] 4) Detection of dust content: A certain amount of cat litter sample is sieved and the amount of dust that falls below the 30 mesh sieve is detected.

[0117] Test equipment: the wire mesh test sieve should comply with the series of test sieves specified in GB / T6003.1-2012, standard sieve vibrator.

[0118] Note 1: The hole size of the test sieve is 500 μm of 30 mesh, and the sieve frame diameter is 200 mm.

[0119] Note 2: The standard specification for a sieve vibrator is a vibration frequency of 1,440 times per minute.

[0120] Analysis process: 500g (m2) of product cat litter is randomly extracted 5 times, 100g each time, put into a 30 mesh standard sieve, put into a vibrating sieve, close the sealing lid, start the vibrating sieve, vibrate for 15s, and after the vibrating sieve is finished, collect the powder under the sieve 5 times to measure the total weight m p Let us assume that.

[0121] The formula for calculating dust content is as follows: F=m p / m2×100% During the ceremony: F is the dust content (%) m2 is the total weight of the sample in grams (g); m p is the total weight of the undersize powder, its unit is grams (g).

[0122] 5) Detection of clump weight: The clump weight after the cat litter absorbs water and clumps

[0123] 6) Detection of clumping strength: The clumped plant fiber cat litter is allowed to fall naturally from a certain height onto a marble or other inelastic desktop, and the largest undisintegrated block of plant fiber cat litter is picked up and weighed. The mass ratio of the largest undisintegrated block of plant fiber cat litter to the mass of the cat litter before the fall is the clumping strength.

[0124] 7) Detection of water absorption rate: After the sample absorbs water and coagulates, its weight is measured.

[0125] The test equipment includes: a) a balance with a sensitivity specification of 0.01 g; and b) An acid burette with a specification of 25 mL; c) A pipette with a specification of 20 mL.

[0126] Analysis process: The sampled cat litter is spread in the sample pond to a thickness of about 8 cm to 10 cm, 20 mL of 1% sodium chloride solution with a temperature of 36 ℃ to 40 ℃ is sucked up with a pipette, transferred to the acid burette, the acid burette is adjusted to about 3 cm from the sample plane, the acid burette is opened, all the solution flows into the sample within 30 s, after all the solution flows out, 60 s, the aggregated sample is taken out, and the mass m is weighed on a balance with a sensitivity specification of 0.01 g, three sets of samples are measured simultaneously using this method to obtain the average value, and the calculation formula for the water absorption result is as follows: X=20 / (m-20)×100% During the ceremony: X is the water absorption rate (%) m is the aggregate weight in grams (g).

[0127] 8) Detection of aggregated mold: The coliform content is determined by GB / T18869, the Salmonella content is determined by GB / T13091, the total mold content is determined by GB / T13092, and the aflatoxin B1 content is determined by GB / T17480.

[0128] 9) Sphericity detection method: Through image processing, the measurement software automatically counts the number of particles, then calculates the number of pixels contained in each particle to obtain parameters such as particle area, equivalent diameter, equivalent perimeter, actual perimeter, and sphericity. This gives the particle shape. The morphological parameters of particles measured by the graphic image analyzer are mainly the aspect ratio and sphericity coefficient. The aspect ratio is the ratio of the length to the diameter for a cylindrical object. The calculated sphericity is 0 to 1, and the smaller the value, the more irregular the particle shape.

[0129] The detection results are shown in Table 3.

[0130] [Table 3]

[0131] As can be seen from the above, by comparing the Examples and Comparative Examples, the cat litter of the present application has better fluidity, is less susceptible to mold, has a higher water absorption rate, and has a lower dust content, making it more suitable for use by cats.

[0132] The above description is merely a specific embodiment of the present application, and the scope of protection of the present application is not limited thereto, and those skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and all of these modifications or replacements should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application is subject to the scope of protection of the claims.

Claims

1. A cat litter having a core-shell structure, a core comprising 100 parts by weight of inedible vegetable fiber, 0.6 to 12 parts by weight of a cohesive factor, 0.6 to 12 parts by weight of a water absorption factor, 0.13 to 2.23 parts by weight of an aquaculture improvement factor, 0.13 to 2.23 parts by weight of a deodorizing factor, and 0.13 to 2.23 parts by weight of an antifungal factor; a shell layer comprising 100 parts by weight of inedible vegetable fiber, 99.5 to 600 parts by weight of a cohesive factor, 3.33 to 100 parts by weight of a water absorption factor, 33.3 to 300 parts by weight of an aquaculture improvement factor, 3.33 to 100 parts by weight of a deodorizing factor, and 0.66 to 20 parts by weight of an antifungal factor; Including, The mass ratio of the shell layer to the core is 1:(4 to 5). Cat litter characterized by the above.

2. The cat litter is The water content of the cat litter is 5% to 10%; The cat litter can pass through a 10 mesh filter; The dust content of the cat litter is 0.05% or less; The cat litter has a sedimentation density of 280 to 400 g / L. The cat litter is rod-shaped, the core is rod-shaped, the diameter of the rod is 2-3.5 mm, and the ratio of the length to the diameter of the rod is (1-3):1; and The thickness of the shell layer is 0.5 mm to 3 mm; At least one of the following is satisfied: Cat litter according to claim 1.

3. The non-edible plant fiber includes one or more of bagasse fiber, bamboo fiber, corn cob fiber, eucalyptus fiber, macromycete fiber, straw fiber, linden fiber, and bamboo shoot skin fiber; Cat litter according to claim 1.

4. The inedible plant fiber in the cat litter passes through a filter of 80 to 100 mesh. Cat litter according to claim 1.

5. The flocculating agent comprises one or more of whey protein, sodium alginate, corn protein, montmorillonite, carboxymethylcellulose and derivatives, guar gum, native starch, pregelatinized starch, and jelly glue; Cat litter according to claim 1.

6. The water absorption agent comprises one or more of polyacrylates, starch acrylate polymers, starch-acrylonitrile graft copolymers, acrylamide-acrylonitrile-acrylic acid terpolymers, polyacrylamides and derivatives, and polyvinyl alcohol; Cat litter according to any one of claims 1 to 5.

7. The aquaculture improvement factor includes one or more of attapulgite, polyacrylamide-attapulgite composite adsorbent, high-purity nano-modified montmorillonite, plant essential oil, sodium aluminosilicate hydrate, diatomaceous earth, and zeolite; Cat litter according to any one of claims 1 to 5.

8. The deodorizing agent includes one or more of allophane, hydrophilically modified ultrafine white carbon, baking soda, nano zinc oxide, and nano titanium dioxide; Cat litter according to any one of claims 1 to 5.

9. The antifungal agent includes one or more of esterified glucomannan, sodium calcium aluminosilicate hydrate, silver-loaded zirconium phosphate antibacterial powder, copper-loaded phosphate antibacterial powder, organic zinc ion antibacterial powder, 5-chloro-2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolin-3-one, 4,5-dichloro-2-n-octyl-3-isothiazolin-one, 2-methyl-4-isothiazolin-3-one, and N-octyl-4-isothiazolin-3-one; Cat litter according to any one of claims 1 to 5.

10. A method for producing cat litter, comprising: Providing a first material for a core, the first material comprising the core composition of claim 1 and 120 to 100 parts by weight of water; Supplying a second raw material for the shell layer, the second raw material comprising the composition of the shell layer according to claim 1 and 133 to 1000 parts by mass of water; subjecting the first ingredient to mixing and first agitation to obtain a first mixture; granulating and first screening the first mixture to obtain a core intermediate product; subjecting the second ingredient to mixing and second agitation to obtain a shell layer mixture; wetting the core intermediate product and coating the wetted core intermediate product with the shell layer mixture to produce a coating mixture; and subjecting the coating mixture to a second sieving, drying, and a third sieving to produce the cat litter; Including, The manufacturing method includes: The rotation speed of the first stirring is 5 to 850 r / min, and the time of the first stirring is 0.5 to 5 minutes; The rotation speed during the granulation is 800 to 1000 r / min. The rotation speed of the second stirring is 0 to 1500 r / min, and the time of the second stirring is 0.5 to 3 minutes; The moisture content of the core intermediate product is 45% or less; the core intermediate product is rod-shaped, the diameter of the core intermediate product is 2-3.5 mm, and the ratio of the length to the diameter of the core intermediate product is (1-3):1; The moisture content of the shell layer mixture is 50% or less; The rotation speed of the device during the coating is 30-60 r / min, and the coating time is 2-6 minutes; The moisture content of the coating mixture is 45% or less; the particle size m of the product after the second sieving is 5 mesh<m<8 mesh; the particle size n of the product after the third sieving is 8 mesh<n<12 mesh; The drying temperature is 65° C. to 75° C.; and After drying, the dried product is polished and shaped, the rotation speed of the polishing is 30-60 r / min, and the polishing time is 15-30 min; At least one of the following is satisfied: A method for producing cat litter.

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