Deodorizing composition for cat litter and its preparation method

Abstract

This invention discloses a deodorizing composition for cat litter, comprising a liquid component and a solid component. The liquid component includes the following components in parts by weight: 0.05-0.2 parts binder, 20-50 parts organic acid, 1-3 parts fragrance, and 45-80 parts water. The solid component includes the following components in parts by weight: 30-40 parts peroxide, 30-40 parts activator, and 20-40 parts carbonate. A method for preparing the deodorizing composition for cat litter and its application in preparing deodorizing cat litter are also provided. The deodorizing cat litter prepared by the composition of this invention can effectively absorb ammonia in urine, achieving a practical ammonia removal and deodorization effect, and effectively suppressing the ammonia odor produced by pet urine.

Description

Technical Field

[0001] This invention relates to the field of pet cat litter deodorization technology, and more particularly to deodorizing compositions for cat litter and their preparation methods. Background Technology

[0002] With the increasing number of cat-owning families in recent years and the development of product technology, pet owners' requirements for cat litter have been rising. Cat litter easily produces odors after use, necessitating fast and effective deodorizing products to meet the needs of modern families. While tofu cat litter, bentonite cat litter, crystal cat litter, and mixed cat litter on the market can meet general usage needs, their inherent structure results in poor odor suppression of cat excrement, failing to satisfy consumers' demands.

[0003] Common cat litter substitutes typically only use fragrance to mask odors and cannot actually remove the gases that produce the smell, thus their effectiveness in suppressing the odor of cat excrement is poor. Common air fresheners work on a similar principle and cannot be sprayed directly onto cat litter.

[0004] Therefore, the above-mentioned existing technologies have at least the following technical problems: traditional cat litter deodorizing products only use fragrance to cover up the odor, and cannot fundamentally remove the odor of cat litter excrement, resulting in poor odor suppression effect. Summary of the Invention

[0005] The purpose of this invention is to provide a deodorizing composition for cat litter, which can be applied in the production process of cat litter. Compared with commercially available products, cat litter treated with this composition can effectively suppress the ammonia smell produced by pet urine.

[0006] To solve the above-mentioned technical problems, this application provides a deodorizing composition for cat litter, the composition comprising a liquid component and a solid component, the liquid component comprising the following components in parts by weight: 0.05-0.2 parts binder, 20-50 parts organic acid, 1-3 parts fragrance, and 45-80 parts water;

[0007] The solid component comprises the following components in parts by weight: 30-40 parts peroxide, 30-40 parts activator, and 20-40 parts carbonate.

[0008] The composition preferably consists of a liquid component and a solid component.

[0009] The activator is tetraacetylethylenediamine.

[0010] Preferably, the liquid component is composed of the following components in parts by weight: 0.05-0.2 parts binder, 20-50 parts organic acid, 1-3 parts fragrance, and 45-80 parts water;

[0011] More preferably, the liquid component consists of the following components by mass percentage: 0.05-0.2% binder, 20-50% organic acid, 1-3% fragrance, and the balance being water.

[0012] Preferably, the solid component is composed of the following components in parts by weight: 30-40 parts peroxide, 30-40 parts tetraacetylethylenediamine, and 20-40 parts carbonate;

[0013] More preferably, the solid component is composed of the following components by mass percentage: 30-40% peroxide, 30-40% tetraacetylethylenediamine, and 20-40% carbonate.

[0014] The binder is one or more of cellulose gum, xanthan gum, guar gum, and carrageenan; preferably cellulose gum.

[0015] The organic acid is one or more of citric acid, tartaric acid, gluconic acid, and fruit acid; citric acid is preferred.

[0016] The fragrance can be a commercially available fragrance, such as a microencapsulated fragrance.

[0017] The peroxide is one or more of sodium percarbonate, sodium perborate, and hydrogen peroxide, with sodium percarbonate being preferred.

[0018] The carbonate is sodium bicarbonate or potassium bicarbonate, preferably sodium bicarbonate.

[0019] The deodorizing composition for cat litter is preferably prepared by the following method:

[0020] (1) Preparation of liquid component: Take each component of liquid component according to component formula, heat water to 65-75℃ (preferably 70℃), add binder while stirring, disperse evenly and cool to room temperature, add organic acid and fragrance to obtain the liquid component;

[0021] (2) Mix the components of the solid component evenly according to the formula to obtain the solid component.

[0022] This application also provides the application of the deodorizing composition for cat litter in the preparation of deodorizing cat litter. The method of application is as follows: at the extrusion port of the cat litter extrusion equipment, the liquid component is evenly sprayed onto the cat litter, the residual heat of the freshly extruded cat litter is used to dry the moisture using the subsequent air cooling process, and then the solid component and the cat litter are mixed evenly to obtain the deodorizing cat litter.

[0023] The amount of the liquid component added is 0.5% to 2% of the cat litter mass, preferably 1%.

[0024] The amount of the solid component added is 0.3 to 1.5% of the cat litter mass, preferably 0.5%.

[0025] This application also provides a method for preparing deodorizing cat litter using the aforementioned deodorizing composition for cat litter. The method is as follows: at the extrusion port of the cat litter extrusion equipment, the liquid component is uniformly sprayed onto the cat litter, the residual heat of the freshly extruded cat litter is used to dry the moisture using the subsequent air-cooling process, and then the solid component and the cat litter are mixed evenly to obtain the deodorizing cat litter.

[0026] This application also provides deodorizing cat litter prepared by the above method.

[0027] The formulation provided in this application consists of two components: a liquid component containing organic acids as a deodorizing agent, and a solid component containing carbonates as a deodorizing agent, which can reduce the ammonia odor in cat urine. The reaction mechanism is as follows: sodium bicarbonate or potassium bicarbonate in the carbonate can weakly ionize into H+ ions, which can react with ammonia gas.

[0028] Furthermore, in this embodiment, the solid and liquid components are added to the cat litter in batches rather than being mixed simultaneously. This avoids the reaction between carbonates and organic acids in an aqueous environment.

[0029] Moreover, the combined effect of solid and liquid components is greater than the deodorizing effect of using solid or liquid formulations alone.

[0030] The deodorizing cat litter containing the composition of the embodiments of this application can effectively absorb ammonia in urine, achieving a real ammonia removal and deodorization effect, and effectively suppressing the ammonia smell produced by pet urine; at the same time, the composition of the embodiments of this application will not affect the clumping properties of the cat litter itself.

[0031] The compositions of the embodiments of this application are applicable to existing cat litter production lines, have wide adaptability to different types of cat litter, are low in cost, and are easy to industrialize. Detailed Implementation

[0032] The technical solution of the present invention will be described in detail below through specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0033] Example 1

[0034] 1. Screening methods for compositions

[0035] 1.1 Refer to the "Pet Cleaning and Hygiene Products - Cat Litter" (Draft for Comments) issued by the China Cleaning Products Industry Association.

[0036] 1.2 Principle of screening the composition: Ammonia (NH3), a typical odor component in cat litter environment, is used as an odor indicator component. In a closed environment, the concentration of residual volatilized ammonia gas after a certain amount of ammonia solution is absorbed by a standard cat litter sample is measured to evaluate the deodorizing effect of the cat litter.

[0037] 1.3 Instruments and Reagents

[0038] Desiccator, 11L capacity, 240mm diameter, colorless and transparent;

[0039] Crystallization dish, 120mm in diameter, 60mm in height;

[0040] 10ml pipette;

[0041] 0.5wt% ammonia solution;

[0042] Portable gas sampling pump;

[0043] Ammonia sampling tube (range: 5-100 mg / m³) 3 ).

[0044] 1.4 The temperature of the experimental environment was kept constant at 26±2℃.

[0045] 1.5 Experimental Procedure

[0046] Weigh out 300g of tofu cat litter, put it into a crystallization dish, gently shake to spread it evenly, and place the crystallization dish at the bottom of the desiccator;

[0047] Use a pipette to transfer 10 ml of 0.5% ammonia solution into the center of the cat litter sample in the crystallizing dish, install the desiccator partition, and quickly tighten the desiccator. Let it stand at room temperature in a sealed environment for 5 mins / 30 mins.

[0048] The experimental data were determined using an ammonia detection tube and a portable gas sampling pump. The ammonia detection tube was cut open at both ends and connected to the portable gas sampling pump. 100 ml of gas was drawn from the desiccator, which was sealed for 5 mins / 30 mins, according to the instrument's instructions. The ammonia detection tube was then observed to obtain the experimental data.

[0049] 2. Determination of ammonia absorption rate of the composition (laboratory data)

[0050] 2.1 Determination of ammonia absorption rate in liquid formulations:

[0051] 2.1.1 In the laboratory, the liquid formula was evenly coated onto the cat litter by spraying with a spray bottle. After drying in an oven at 54°C for 2 minutes, the ammonia absorption rate of the resulting cat litter was tested according to the above method.

[0052] The liquid formulation is as follows: 0.1% cellulose gum, 30% citric acid, 2.0% fragrance, and the balance being water;

[0053] The preparation method of the liquid formulation is as follows: heat water to 70°C, add cellulose gum while stirring and disperse evenly, then cool to room temperature, add citric acid and fragrance, and mix well.

[0054] 2.1.2 The results of the ammonia absorption rate determination of the liquid formulation are shown in Table 1:

[0055] Table 1

[0056]

[0057] 2.1.3 Conclusion and Interpretation of Experimental Values: The liquid formula in this invention can effectively improve the deodorizing effect of cat litter when the usage amount is 1%.

[0058] 2.2 Determination of moisture content in treated tofu cat litter:

[0059] 2.2.1 Method for determining moisture content

[0060] Recommended parameters for a rapid moisture analyzer are: temperature 150℃, endpoint mode with a weight loss rate of 1 mg / (30s), and sample weight of (5.0±0.5) g. If the balance is sufficiently accurate, the sample weight should be minimized to avoid problems such as excessive sample buildup, uneven drying, and excessively long drying time.

[0061] Before using the rapid moisture analyzer for the first time, the instrument must be calibrated. The method is as follows: Use a sample with a known accurate moisture content (e.g., accurately measured using the oven drying method), and perform five parallel measurements with the instrument. The difference between the maximum and minimum values ​​should not exceed 0.30%, and the difference between the average value and the true value should not exceed 0.30%. If these ranges are exceeded, the instrument parameters should be optimized until they are within acceptable limits before use. The instrument should be calibrated regularly (e.g., monthly), and any abnormalities detected during testing should be calibrated promptly.

[0062] Weigh an appropriate amount of the cat litter sample that has been treated with the liquid formulation and dried as described in section 2.1.1, spread it evenly on an aluminum pan, and automatically measure it according to the instrument's operating procedure. Record the reading at the endpoint. Each sample should be measured at least twice in parallel, and the arithmetic mean of the parallel measurement results should be used as the reported result.

[0063] The difference between the maximum and minimum values ​​of parallel measurements should not exceed 0.30%. If it does, check whether the dried sample is spread evenly and whether there are any errors in the testing process. Find the cause and re-measure.

[0064] 2.2.2 The moisture content test results are shown in Table 2.

[0065] Table 2

[0066]

[0067] 2.2.3 Conclusion

[0068] The liquid formula in this invention will not cause the moisture content of tofu cat litter to exceed the standard (cat litter group standard) when used at a dosage of 1%, that is, the moisture content of the treated tofu cat litter is <12%.

[0069] 2.3 Determination of ammonia absorption rate in solid formulations:

[0070] 2.3.1 Compatibility testing of sodium bicarbonate with liquid formulations;

[0071] 2.3.2 In the laboratory, the liquid formula was evenly coated onto the cat litter by spraying with a spray bottle. After drying in a 54℃ oven for 2 minutes, a certain amount of sodium bicarbonate was added to the cat litter and mixed evenly.

[0072] 2.3.3 In the actual production process, cat litter undergoes a high-temperature drying process after being extruded as granules. At the same time, the liquid formula is sprayed after high-temperature drying, and the residual heat of the cat litter is used for secondary drying. Therefore, it is believed that the laboratory simulation of the production environment at 54℃ is realistic and effective.

[0073] 2.3.4 The test results of the ammonia absorption rate of the solid formulation are shown in Table 3:

[0074] Table 3

[0075]

[0076] 2.3.5 Conclusion

[0077] In actual use, the liquid formulation and sodium bicarbonate do not interfere with each other, and the simultaneous use of the two improves the absorption rate of ammonia.

[0078] 2.4 Ammonia absorption rate of solid formulation

[0079] Following the method in 2.3, sodium bicarbonate was changed to a solid formulation, which consisted of 30% sodium percarbonate, 30% tetraacetylethylenediamine, and 40% sodium bicarbonate.

[0080] The test results of the ammonia absorption rate of the solid formulation are shown in Table 4:

[0081] Table 4

[0082]

[0083]

[0084] 2.4.1 Conclusion

[0085] The solid formula in this invention can effectively improve the deodorizing effect of cat litter when used at a dosage of 0.5%.

[0086] 3. Determination of ammonia absorption rate when using both liquid and solid formulations.

[0087] 3.1 Adding Method

[0088] In the laboratory, the liquid formula was evenly coated onto the cat litter using a spray bottle. After drying in a 54°C oven for 2 minutes, 0.5% of the solid formula was added.

[0089] 3.2 Experimental data are shown in Table 5:

[0090] Table 5

[0091]

[0092] 3.3 Conclusion

[0093] When liquid and solid formulations are used in combination, the absorption rate of ammonia is greater than when liquid or solid formulations are used alone.

[0094] Example 2

[0095] The steps for preparing deodorizing cat litter are as follows:

[0096] (1) Ingredient preparation: Mix the materials required for cat litter production evenly according to the formula to form a mixture;

[0097] (2) Molding: Place the mixture in an extruder, extrusion temperature 130℃, pressure set 2-15 bar to obtain a shaped product with a diameter of 4-10 mm and a length of 10-25 mm; at the extrusion nozzle, spray the liquid component evenly onto the cat litter and use the residual heat of the cat litter to dry the moisture; the mass ratio of the liquid component to the cat litter is 1%.

[0098] The liquid component is formulated as follows: xanthan gum 0.1%, fruit acid 30%, fragrance 2.0%, and the balance being water;

[0099] (3) Cooling: The molded product is continuously conveyed to a cooling device for cooling to room temperature. The air intake of the cooling device is 4500 m³ / h. 3 / h, air pressure is 200mm water column height, cooling time is 5 to 20 minutes;

[0100] (4) The cooled cat litter is conveyed to the mixing port, and the solid formula and cat litter are mixed evenly at a mass ratio of 0.5% to obtain the deodorizing cat litter;

[0101] The solid component formulation is: 30% sodium percarbonate, 30% tetraacetylethylenediamine, and 40% sodium bicarbonate.

[0102] The ammonia absorption rate of the deodorizing cat litter was tested according to the method in Example 1. 10 mL of 0.5% ammonia solution was added to 300 g of deodorizing cat litter, and the ammonia concentration was measured to be 8 mg / m³ after 5 minutes. 3 After 30 minutes, the ammonia concentration was measured to be 6 mg / m³. 3 .

[0103] The above description is merely a preferred embodiment of this application and does not constitute any limitation on this application in any form or substance. It should be noted that those skilled in the art can make several improvements and additions without departing from the method of this application, and these improvements and additions should also be considered within the scope of protection described in the embodiments of this application. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this application based on the disclosed technical content are equivalent embodiments of this application; furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this application still fall within the scope of the technical solution of this application.

Claims

1. A deodorizing composition for cat litter, characterized in that, The composition comprises a liquid component and a solid component, wherein the liquid component comprises the following components in parts by weight: 0.05-0.2 parts of binder, 20-50 parts of organic acid, 1-3 parts of fragrance, and 45-80 parts of water; The solid component comprises the following components in parts by weight: 30-40 parts peroxide, 30-40 parts activator, and 20-40 parts carbonate; The binder is one or more of cellulose gum, xanthan gum, guar gum, and carrageenan; The organic acid is one or more of citric acid, tartaric acid, gluconic acid, and fruit acid; The peroxide is one or more of sodium percarbonate, sodium perborate, and hydrogen peroxide; The carbonate is sodium bicarbonate or potassium bicarbonate; The activator is tetraacetylethylenediamine.

2. The deodorizing composition for cat litter as described in claim 1, characterized in that, The composition comprises a liquid component and a solid component, wherein: The liquid component consists of the following components in parts by weight: 0.05-0.2 parts binder, 20-50 parts organic acid, 1-3 parts fragrance, and 45-80 parts water; The solid component consists of the following components in parts by weight: 30-40 parts peroxide, 30-40 parts tetraacetylethylenediamine, and 20-40 parts carbonate.

3. The deodorizing composition for cat litter as described in claim 1, characterized in that, The liquid component consists of the following components by mass percentage: 0.05-0.2% binder, 20-50% organic acid, 1-3% fragrance, and the balance being water; The solid component consists of the following components by mass percentage: 30-40% peroxide, 30-40% tetraacetylethylenediamine, and 20-40% carbonate.

4. The deodorizing composition for cat litter as described in claim 1, characterized in that, The deodorizing composition for cat litter is prepared by the following method: (1) Preparation of liquid component: Take each component of the liquid component according to the component formula, heat water to 65-75℃, add binder while stirring, disperse evenly and then cool to room temperature, add organic acid and fragrance to obtain the liquid component; (2) Mix the components of the solid component evenly according to the formula to obtain the solid component.

5. The use of the deodorizing composition for cat litter as described in claim 1 in the preparation of deodorizing cat litter.

6. The application as described in claim 5, characterized in that, The method of application is as follows: at the extrusion port of the extrusion equipment for preparing cat litter, the liquid component is evenly sprayed onto the cat litter, the residual heat of the freshly extruded cat litter is used to dry the moisture through a subsequent air-cooling process, and then the solid component and cat litter are mixed evenly to obtain the deodorizing cat litter.

7. The application as described in claim 6, characterized in that, The amount of liquid component added is 0.5% to 2% of the cat litter mass; the amount of solid component added is 0.3% to 1.5% of the cat litter mass.

8. A method for preparing deodorizing cat litter using the deodorizing composition for cat litter as described in claim 1, characterized in that, The method includes: uniformly spraying liquid components onto cat litter at the extrusion port of an extrusion device, drying the moisture using the residual heat of the freshly extruded cat litter and a subsequent air-cooling process, and then uniformly mixing the solid components and cat litter to obtain the deodorizing cat litter.

9. The deodorizing cat litter prepared by the method as described in claim 8.

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