Cat litter and its manufacturing method

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 producing the same. [Background technology]

[0002] Cat litter has appeared on the market to facilitate cat owners in cleaning up cat feces in a timely manner, freeing up their hands and avoiding the unpleasant odor that occurs when removing feces by hand. Cat litter is used by artificially raised cats to bury their feces and urine, and generally has relatively good water absorption. Cat litter is divided into organic cat litter and inorganic cat litter according to its chemical properties and raw materials. Organic cat litter mainly includes paper-based cat litter and pea-based cat litter, while inorganic cat litter includes bentonite cat litter and silica gel cat litter.

[0003] Paper-based cat litter has poor water absorption and cohesion. Pea-based cat litter contains putrefactive components such as proteins and fats from pea and soybean meal. These components in the cat litter are prone to producing putrid odors in humid environments during use, failing to achieve deodorizing effects and even becoming the source of the odor. The main drawback of bentonite cat litter is the dust problem, which, if left unattended, can cause urinary system and respiratory tract infections in cats. Silica gel cat litter has poor cohesion, large particles, is unpleasant, and is inconvenient to use, so it cannot be directly discharged from the litter box. 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 highly 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, which comprises: a core comprising 100 parts by mass of inedible plant fiber, 0.6 to 12 parts by mass of a cohesion factor, 0.6 to 12 parts by mass of a water absorption factor, 0.13 to 2.23 parts by mass of an aquaculture 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; a shell layer covering the core and including 100 parts by mass of inedible plant 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; 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 cat litter is 5% to 10%. The cat litter must be able to pass through a 10 mesh filter. The dust content of cat litter must be 0.05% or less. The cat litter density 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 0.5 mm to 3 mm. 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 inedible plant fibers include one or more of bagasse fiber, bamboo fiber, corncob fiber, eucalyptus fiber, Pennisetum giganteum fiber, straw fiber, minnow fiber, and bamboo shoot husk fiber.

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

[0009] According to an embodiment of one aspect of the present application, the flocculation 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.

[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 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.

[0012] According to an embodiment of one aspect of the present application, the deodorizing agent includes one or more of allophane, hydrophilically modified ultrafine 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 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.

[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: 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 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 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 moisture 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 moisture 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℃ to 75℃, and After drying, the dried product is polished and shaped, the polishing rotation speed is 30-60 r / min, and the polishing time is 15-30 min; 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 containing inedible plant fiber, a clumping factor, a water-absorbing factor, a breeding improvement factor, a deodorizing factor, and an anti-fungal factor, and the components act synergistically to give the cat litter excellent clumping and moisture absorption properties, allowing urine to clump the cat litter and the cat litter to encase feces, and effectively separating it from the clean non-clumping cat litter after washing, preventing waste of unused cat litter and reducing odor and mold formation in the clumped areas of cat feces. Furthermore, the cat litter is made primarily from inedible plant fiber, giving it good water solubility, allowing the clumped cat litter to be directly flushed down the toilet after use. 2. The cat litter of the present application comprises a core and a shell layer, each of which contains inedible plant fibers. Compared to bentonite cat litter, tofu / bentonite mixed cat litter, and tofu cat litter, the cat litter of the present application is lightweight and has a low specific gravity, making it easy to stock, transport, and replace the cat litter. 3. The cat litter of the present application has a shell layer enveloping the core, and the mass ratio of the shell layer to the core is within an appropriate range, which is beneficial to the clumping performance of the cat litter and the reduction of the dust reduction rate, contributing to the clumping of the cat litter after absorbing moisture and the envelopment of feces in the cat litter. 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 respiratory health of pets and owners. [Brief explanation of the drawings]

[0017] In order to more clearly explain the technical solutions of the embodiments of the present application, the following briefly introduces the 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 any creative efforts.

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

[0019] In order to make the application objectives, technical solutions and beneficial technical effects of the present application clearer, 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, this application explicitly discloses several 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 numerical value between the range endpoints is included within this range. Thus, each point or single numerical value can be used as its own lower limit or upper limit, and can be combined with any other point or single numerical value, or with other lower or upper limits, 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" include the corresponding numbers, and "multiple types" in "one type or multiple types" means two types or more than two types.

[0022] The above-mentioned disclosure of this application is not intended to describe each and every embodiment or implementation of the disclosure herein. Exemplary embodiments are more specifically illustrated below. In several places throughout this application, a series of embodiments are provided as a guide, and these embodiments can be used in various combinations. Each example is representative only and should not be construed as exhaustive.

[0023] When the built-in grid plate in the intelligent cat litter box rotates to clean cat feces, the cat litter particle agglomerates flow as the grid plate rotates. The flow of the particle agglomerates is essentially due to the imbalance of particle forces in the particle agglomerates. From an analysis of the forces applied to the particles, it can be seen that the acting forces in the particle flow process include gravity, adhesion forces between particles, frictional forces, electrostatic forces, etc., and gravity and adhesion forces between particles have the greatest impact on particle flowability.

[0024] The factors that affect 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 a significant impact on its fluidity. In addition, factors such as moisture content, electrostatic voltage, porosity, pile density, and internal friction coefficient also affect particle fluidity. It is of great significance to analyze the factors that affect particle fluidity and scientifically improve the fluidity of particle aggregates.

[0025] The present application provides cat litter, which comprises 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, allowing the cat litter of the present application to 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 cat litter clumped with urine and cat litter containing feces can be effectively washed and separated from non-clumping clean cat litter, preventing unused cat litter from being wasted, and making it difficult for the clumped parts of cat feces to remain in the clean cat litter, reducing lingering odors. 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 mass of inedible plant fiber, 0.6 to 12 parts by mass of a cohesion factor, 0.6 to 12 parts by mass of a water absorption factor, 0.13 to 2.23 parts by mass of an aquaculture 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; a shell layer covering the core and including 100 parts by mass of inedible plant 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; Including, The mass ratio of the shell layer to the core is 1:(4 to 5).

[0027] According to an embodiment of the present application, the cat litter of the present application has a differentiated core and shell layer design, so that the shell layer has an appropriate cohesion factor by mass, which is advantageous for cohesion during production of the cat litter. When the cat litter is in use, the cohesion factor of the shell layer by mass is advantageous 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, thereby enabling cohesion and preventing contamination of other cat litter. The water absorption factor of the shell layer absorbs moisture in cat urine and cat feces, and the appropriate mass of inedible plant fiber and the water absorption factor in the core layer are advantageous for retaining the absorbed moisture. By selecting an appropriate mass ratio of the core to the shell layer, a pet mat with water absorption, cohesion, antibacterial, and deodorizing functions and suitable for 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 primarily from plant fibers of the present invention is dust-free, safe, pollution-free, biodegradable, made from naturally renewable raw materials, has rapid water absorption, strong clumping properties, deodorizing properties, and is universally applicable to various intelligent cat litter boxes.

[0031] The cat litter of the present application has water absorption, clumping, antibacterial and deodorizing functions, 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 having a sphericity value of 0.7 or more is 88% or more, and the cumulative distribution rate of particles having 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 cat litter particles can be reduced, the flowability index of the cat litter particles can be improved, and the probability of particle bridging 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 during the particle flow process, thereby improving the flowability index of the cat litter.

[0033] The relationship between particle size and particle fluidity is analyzed. Spherical particles have the smallest contact area between them, so they have the best fluidity, followed by cubic particles, and other irregularly shaped particles have average fluidity. Sheet, branch, and needle-shaped particles have poor fluidity due to the many flat contact points on their outer surfaces and the 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 basin when the intelligent cat litter box rotates to clean up the cat feces, but slides down from the bottom of the cat litter basin in the direction of rotation, resulting in poor fluidity and low grating passability. This problem is reduced, and the adoption of an appropriate density solves this problem.

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

[0036] According to an embodiment of the present application, the sediment density of tofu cat litter is approximately 500-600 g / L, the sediment density of tofu / bentonite mixed cat litter is approximately 700-800 g / L, and the sediment density of bentonite cat litter is as high as 1000 g / L, whereas the sediment density of the plant fiber cat litter of the present invention is only 280-400 g / L. The lightweight 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 an embodiment of the present application, when the water content of the cat litter is within the above range, it can improve the comfort of contact between the cat litter and the cat, while also improving the cohesion of each component in the cat litter, providing a certain amount of water absorption capacity and contributing to the adsorption of moisture in the cat feces and achieving cohesion. Furthermore, when the water content of the cat litter is within the above range, the cat litter product granules are not too dry, which reduces the mutual attraction and adhesion between particles due to electrostatic action, improving the fluidity index of the cat litter particles and improving the fluidity of the cat litter and the passability of non-cohesive, clean cat litter during the process of cleaning cat feces by rotating the intelligent cat litter box against the openwork lattice of the grid plate.

[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, or 50 mesh filter, or any range consisting of these.

[0040] When we say that cat litter passes through a 10-mesh filter, we mean that the pore size of a 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 inevitably can also pass through filters with pore sizes such as 10-mesh. Cat litter that passes through a 10-mesh filter is applicable to situations where cat litter passes through the gaps between the grates of 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 conditions, thereby improving the fluidity of the cat litter containing inedible plant fiber in the raw materials and molding process at each stage of molding into cat litter, and non-clumping clean cat litter can be retained in the gaps between the lattice plates of the intelligent cat litter box, so that unused cat litter is not wasted and clumped cat litter containing cat feces can be directly discharged and can be discharged directly into the sewer such as a 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, reducing 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 to 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, and is usually measured 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 to 3.5 mm, the ratio of the length to diameter of the rod is (1 to 3):1, and the thickness of the shell layer is 0.5 mm to 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 to 3.5 mm, the ratio of the length to the diameter of the rod is (1 to 3):1, and the thickness of the shell layer is 0.5 mm to 3 mm, the cat litter having the above shape, ratio of the length to the diameter of the rod, and thickness of the shell layer is suitable for an intelligent cat litter box, and can completely separate the cat litter clumped with urine and the cat litter containing feces from the non-clumping clean cat litter, thereby realizing the purpose of not wasting unused cat litter.

[0048] According to an embodiment of the present application, the particle size and shape of cat litter can be controlled by the device, and the sphericity of the cat litter particles can be improved. By covering the core with a shell, a good degree of adhesion between the shell and the core can be achieved, which improves the uniformity of the shape and size of the cat litter particles, improves the sphericity of the cat litter particles, and helps to improve the flowability index of the 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 grid of the grid plate of the intelligent cat litter box, thereby allowing the cat litter of the present application to be freely adapted to various intelligent cat litter boxes on the market and achieving the goal of the cat litter having the universality to pass through the intelligent cat litter box, thereby achieving the goal of cleaning and separating cat litter clumped with urine and cat litter containing feces from non-clumped clean cat litter, not wasting unused cat litter, and not causing odors due to the clumped parts of the cat litter remaining in the washed cat litter.

[0050] As an example of the present application, cat litter includes a core containing 100 parts by mass of inedible plant 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 an aquaculture 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 anti-fungal factor, and a shell layer coating the core and containing 100 parts by mass of inedible plant 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 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 anti-fungal factor.

[0051] 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 core to the shell layer is 1:(4-5). The moisture content of the cat litter is 5%-10%. The cat litter passes through a 10-mesh filter. The sediment density of the cat litter is 280-400 g / L. The cat litter is rod-shaped. The core is rod-shaped. The diameter of the rod is 2-3.5 mm. The length-to-diameter ratio of the rod is (1-3):1. The thickness of the shell layer is 0.5 mm-3 mm. The dust content of the cat litter is 0.05% or less, 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 200%-300%, and the mold initiation time of the cat litter is more than 30 days.

[0052] In another example of the present application, cat litter includes a core containing 100 parts by mass of inedible plant 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 coating the core and containing 100 parts by mass of inedible plant 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] 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, native starch, and pregelatinized starch. The mass ratio of the core to the shell layer is 1:(4-5). The water content of the cat litter is 5%-10%. The cat litter passes through a 10-mesh filter. The sediment density of the cat litter is 280-400 g / L. The cat litter is rod-shaped. The core is rod-shaped. The diameter of the rod is 2-3.5 mm. The length-to-diameter ratio of the rod is (1-3):1. The thickness of the shell layer is 0.5 mm-3 mm. 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 fiber comprises one or more of bagasse fiber, bamboo fiber, corncob fiber, eucalyptus fiber, macromycete fiber, straw fiber, mint fiber, and bamboo shoot husk 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 and the development of post-processing processes such as adding a shell layer to the core and grinding and shaping, thereby improving the uniformity of the shape and size of the cat litter particles, improving the flowability index and sphericity of the cat litter particles, improving the high flowability of the non-agglomerated clean cat litter, and improving the pass-through rate of the openwork grating of the intelligent cat litter box grille.

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

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

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

[0060] In some alternative embodiments, the flocculating 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, between cat litter and other cat litter, and between cat litter and cat feces or other feces, making it easier to cover cat feces and reducing contamination of other cat litter.

[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 ability, 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 weight-increased and modified using aquaculture improvement factors, and the weight-increased modified cat litter has an improved fluidity index, making it easier to pass through the grates of a cat litter box, and reducing 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. Cat litter manufacturing method

[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 plant fiber, 20 to 100 parts by weight of water, 0.6 to 12 parts by weight of a cohesion 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; Providing a second raw material for the shell layer, the second raw material comprising 100 parts by weight of inedible plant 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 first stirring on the first raw material to obtain a first mixture; granulating and first sieving the first mixture to obtain a core intermediate product; performing mixing and second agitation on the second raw material 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 a loose appearance, low completeness and a lot of debris. A special coating device is used based on core-pressed granules, and the core-pressed granules are wetted and coated by water jet, and the coated shell layer is shaped. The cat litter produced by this process has a compact appearance, high completeness and low debris, and the uniformity of the particle shape and size of the cat litter is improved, which helps to improve the flowability index of the cat litter.

[0070] In some alternative embodiments, the rotation speed of the first stirring is 5 to 850 r / min, and the duration 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 alternative embodiments, the rotation speed of the second stirring is 0 to 1500 r / min, and optionally 5 to 1000 r / min, and the duration of the second stirring is 0.5 to 3 minutes.

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

[0074] In some alternative embodiments, subjecting the first ingredient to a first agitation to obtain the first mixture includes: Using an agitation mixer, the inedible 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, and continue stirring after the water addition is completed, the stirring rotation speed is 0 to 850 r / min, the total stirring time is 0.5 to 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 for the flocculation factor, water absorption factor, aquaculture improvement factor, deodorizing factor, and anti-fungal factor are uniformly stirred and mixed in the above mass ratio, the stirring rotation speed 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 stirring 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 first sieving to obtain the core intermediate product includes: The first mixture is granulated in a granulator, the die hole diameter of the granulator used is 2 mm to 3.5 mm, the die hole length is 8 mm to 20 mm, the die compression ratio is 1.5 to 9, both ends of the die hole are horn-shaped discharge ports, the vertical depth of the horn-shaped discharge port is 1 mm, the tangent of the arc surface of the horn-shaped discharge port 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 to 0.5 mm, the diameter of the core of the extruded cat litter particles is controlled to 2 to 3.5 mm, the ratio of length to diameter is controlled to (1 to 3):1, and the operating rotation speed of the granulator is 800 to 1000 r / min, and then a first sieving is performed to obtain a core intermediate product.

[0076] In some embodiments, the first sieving step involves sieving the mixture of the core intermediate product obtained by core pressing and the debris and powder generated by the core through an 8-mesh filter. The sieved particles are then subjected to the coating process of wetting and coating. Removing the debris and powder through sieving prevents waste of coating material and the generation of 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 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 to 60 r / min, and the coating time is 2 to 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 examples of the present application, when the moisture content is strictly controlled 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 action due to drying during the manufacturing and use of the cat litter is reduced, thereby improving the flowability 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 secondly sieved through a 5-mesh filter. The coating mixture can be understood as large particles formed by the particles being bonded together through a wet coating process in the core coating stage. After the coating is completed, all the coated particles are sieved through a 5-mesh filter, and all the coated particles larger than 5 mesh are dried, and the screened coated particles smaller than 5 mesh are conveyed to the core press granulation process.

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

[0085] According to an 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 / shaping. After grinding / shaping is completed, all the ground and shaped granules are sieved multiple times using an 8-12 mesh filter, and all ground and shaped granules below the target particle size are stored in inventory. Screened powder particles above 1 and below the target particle size are transported to the core press granulation process, and the dust content is controlled to be 0.05% or less.

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

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

[0088] In some alternative embodiments, coating the wetted core intermediate product with the shell layer mixture to produce the coating mixture comprises: After the core intermediate product is wet-treated by the coating device, the shell layer mixture is introduced into it, and 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 includes adopting a spraying process to wet-treat the core intermediate product in a 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 a shell layer mixture, and a 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 the 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. All ground and shaped particles less than 10 mesh are put into inventory, and after screening, powder particles greater than 10 mesh are transported to the core press granulation process. The dust content of ground and shaped particles less than 10 mesh is controlled to be below 0.05%, and an inedible plant fiber product that is universally suitable for intelligent cat litter box grates is obtained.

[0096] To address the problem of cat litter particles easily becoming clogged in the grating due to bridging of cat litter particles, the cat litter particles can be polished and shaped after being coated with a shell layer and dried, thereby reducing the friction between the cat litter particles, lowering the adhesive force between the cat litter particles, improving the sphericity and surface smoothness of the cat litter particles, and improving the flowability index of the cat litter particles, reducing the probability of bridging of cat litter particles to zero, allowing non-agglomerated, clean cat litter to pass through the openwork grating of the intelligent cat litter box grating plate. Example

[0097] The following examples will explain the present invention in more detail, but these examples are merely illustrative and will be apparent to those skilled in the art for various modifications and variations within the scope of the present disclosure. All parts, percentages, and ratios described in the following examples are by weight unless otherwise specified. All reagents used in the examples are commercially available or may be synthesized and obtained according to conventional methods, and may be used as is without further treatment. The equipment used in the examples is commercially available. Examples 1 to 3

[0098] This example provides cat litter, which comprises: a core comprising 100 parts by mass of inedible plant fiber, 0.6 to 12 parts by mass of a cohesion factor, 0.6 to 12 parts by mass of a water absorption factor, 0.13 to 2.23 parts by mass of an aquaculture 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; a shell layer covering the core and including 100 parts by mass of inedible plant 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 a specialized plant fiber grinding device, the inedible plant fiber raw materials of the core of the cat litter particles are each ground to a fineness of 200 to 400 mesh. (2) Using a specialized stirring and mixing device, the inedible plant fibers are mixed evenly in proportions, with the stirring 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, and after the water addition is completed, continue stirring, the stirring rotation speed is 0 to 850 r / min, and the total stirring time is 0.5 to 3 minutes, and after the stirring and mixing is completed, leave it for subsequent use. (4) Using a specialized stirring and mixing device, the materials for the coagulation factor, water absorption factor, aquaculture improvement factor, deodorizing factor, and anti-mold factor are uniformly stirred and mixed in the above mass ratio, the stirring rotation speed is 0 to 1500 r / min, and the stirring time is 0.5 to 3 minutes. (5) The stirred mixture of (4) is added to the mixture of inedible plant fiber and water of (3) while stirring. After the addition of the material of (4) is completed, stirring is continued. The stirring 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 for continuous granulation. The die of the granulator used has a hole diameter of 2mm to 3.5mm, the length of the die hole is 8mm to 20mm, the compression ratio of the die is 1.5 to 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 to 0.5mm, the core diameter of the extruded cat litter particles is controlled to 2 to 3.5mm, and the ratio of length to diameter is controlled to (1 to 3):1, and the operating rotation speed of the granulator is 800 to 1000 r / min. (7) After the granulation of the cat litter core is completed, the granules obtained by the core press and the debris and powder produced by the core press are sieved through an 8-mesh filter, and the sieved granules are used in the wetting and coating process. (8) Using a specialized plant fiber grinding device, the inedible plant fiber raw materials required for the shell layer of cat litter are ground 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 anti-mold factor materials of (8) are uniformly stirred and mixed in the above 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, and the amount of water used in the wetting process is the same as the amount of water in the shell layer of the cat litter. The core intermediate product of the cat litter is wet-treated in a rotating device by spraying, and the rotating speed of the device is 30 to 60 r / min. (11) Coat the cat litter core intermediate product after the wetting treatment. After the wetting treatment in (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 in (9) is quickly added to the wetting treatment core intermediate product, and added while rotating. The rotation speed of the device is 30-60 r / min, the total coating time is 2-6 minutes, and the thickness of the shell layer of the coated cat litter is 0.5 mm or more. (12) After the coating is completed for the large particles formed by particle bonding in the wet coating process of (11), all coated particles are sieved using a 5-mesh filter, and the coated particles screened out below 5 mesh are conveyed to the core press granulation process, and the coated particles above 5 mesh are passed through an 8-mesh filter for sieving, and the coated particles below 8 mesh and above 5 mesh are sent to the drying process, and the scraps and powder above 8 mesh are screened and conveyed to the core press granulation process. (13) After coating, 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 particles after drying is controlled to 5 to 10%. (14) After drying, the dried cat litter particles are put into a specialized rotary polishing machine to be polished and shaped. The rotation speed of the polishing machine is 30-60 r / min, and the polishing time is 15-30 min. (15) After grinding and shaping, the plant fiber cat litter particles 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. All ground and shaped particles less than 10 mesh are put into storage. After screening, the powder particles more than 10 mesh are transported to the core press granulation process. The dust content of ground and shaped particles less than 10 mesh is controlled to below 0.05%, and cat litter that is universally compatible with the grids of intelligent cat litter boxes is obtained.

[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 was provided, and its ingredients included soybean residue, which accounted for 90% of the total mass of the tofu cat litter, with the remainder being a flocculant and an anti-fungal agent. Comparative Example 4

[0103] The cat litter of this comparative example contains bentonite, which is heavy and requires a lot of effort to stock and replace, 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 section

[0107] 1) Sediment 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, and 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 part of the tank along the tank mouth, and weigh the sample in the tank.

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

[0111] 1) Cat litter density detection:

[0112] 2) Detection of moisture content: The sample is heated using a program-controlled heating halogen lamp / infrared lamp, and the sample is automatically weighed continuously until a certain mass is reached, and the results are reported.

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

[0114] Analysis process: Place approximately 2g of cat litter sample on the drying pan of the high-speed moisture meter and flatten it, then control the drying temperature to 105°C. Start the measurement program, measure for 10 minutes, 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 through 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 was randomly extracted 5 times, and 100g each time was placed on a 30 mesh standard sieve, placed in a vibrating sieve, the sealed lid was closed, the vibrating sieve was started, and the vibrating sieve was vibrated for 15 seconds. After the vibrating sieve was finished, the powder under the sieve was collected 5 times and the total weight m p Let's say.

[0121] The formula for calculating the 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, and its unit is grams (g).

[0122] 5) Detection of clump weight: The clump weight after the cat litter has absorbed water and clumped

[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 falling is the clumping strength.

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

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

[0126] Analysis process: Spread the sampled cat litter in the sample pond to a thickness of approximately 8 cm to 10 cm, and use a pipette to suck up 20 mL of 1% sodium chloride solution at a temperature of 36°C to 40°C and transfer it to the acid burette. Adjust the acid burette to approximately 3 cm from the sample plane. Open the acid burette and allow all the solution to flow into the sample within 30 seconds. After all the solution has flowed out, wait 60 seconds. Remove the coagulated sample and weigh its mass m on a balance with a sensitivity specification of 0.01 g. Using this method, measure three sets of samples simultaneously to obtain the average value. The calculation formula for the water absorption results 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: coliform content is measured according to GB / T18869, salmonella content is measured according to GB / T13091, total mold content is measured according to GB / T13092, and aflatoxin B1 content is measured according to GB / T17480.

[0128] 9) Sphericity detection method: By processing the images, 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 of a cylindrical object. The calculated sphericity value is between 0 and 1, with 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. Those skilled in the art can easily come up with 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 plant fiber, 0.6 to 12 parts by weight of a cohesion 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 mass of inedible plant 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; Including, a mass ratio of the shell layer to the core is 1:(4 to 5), and a thickness of the shell layer is 0.6 mm to 0.8 mm; The inedible plant fiber includes one or more of bagasse fiber, bamboo fiber, corncob fiber, eucalyptus fiber, macromycete fiber, straw fiber, minnow fiber, and bamboo shoot fiber; 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; 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; The aquaculture improvement factor comprises one or more of attapulgite, polyacrylamide-attapulgite composite adsorbent, high-purity nano-modified montmorillonite, plant essential oil, sodium aluminosilicate hydrate, diatomaceous earth, and zeolite; the deodorizing agent comprises one or more of allophane, hydrophilically modified ultrafine white carbon, baking soda, nano zinc oxide, and nano titanium dioxide; 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 characterized by:

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; and 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; Satisfy at least one of the following: The cat litter according to claim 1.

3. The inedible plant fiber in the cat litter passes through an 80 to 100 mesh filter. The cat litter according to claim 1.

4. A method for producing cat litter according to any one of claims 1 to 3, providing a first ingredient of a core, the first ingredient comprising the core composition and 120 to 100 parts by weight of water; providing a second raw material for the shell layer, the second raw material comprising the composition of the shell layer and 133 to 1000 parts by mass of water; subjecting the first raw material to mixing and first stirring to obtain a first mixture; granulating and first sieving the first mixture to obtain a core intermediate product; performing mixing and second stirring on the second raw material 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, has a diameter of 2 to 3.5 mm, and has a length to diameter ratio of (1 to 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 to 60 r / min, and the coating time is 2 to 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, and the rotation speed of the polishing is 30 to 60 r / min, and the polishing time is 15 to 30 min; Satisfy at least one of the following: A method for producing cat litter.

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