Cat urine ph indicating litter and method of making

Abstract

The application discloses cat urine PH indicating cat litter and a preparation method thereof, and belongs to the technical field of cat litter. The cat urine PH indicating cat litter is prepared from the following raw materials in a weight ratio: 1-2 parts of deodorant, 3-5 parts of fiber powder, 12-20 parts of granules, 30-40 parts of adhesive, 8-10 parts of starch, 20-30 parts of PH indicator, and 10-20 parts of silica gel. The silica gel is used as a carrier without affecting the accuracy of PH testing. The non-toxic reagent is selected as the PH indicator, and the dosage is limited, and the PH indicator is non-irritating. Normal cat urine is weakly acidic, and the PH value is 5.5-7.5. If the PH value is lower than 5.4, the indicator shows blue-green to yellow. If the PH value is greater than 8.2, the indicator shows light red to purple red. The cat urine PH abnormality can be effectively prompted. Meanwhile, the indicator and other components are coated on the surface of the silica gel instead of being separately formed into granules and mixed with the silica gel granules, so that the cat urine can be easily absorbed and the indicator can be easily colored. The cat litter has the advantages of accurate testing, safety, non-toxicity, easy absorption, and abnormal coloration prompting.

Description

Technical Field

[0001] This invention relates to the field of cat litter technology, specifically to a cat litter with cat urine pH indicator and its preparation method. Background Technology

[0002] Nowadays, cat litter has become a pet product with very high consumption both domestically and internationally. It is a common and essential item for most families that keep pet cats. It is mainly used to absorb pet feces and urine. It has good water absorption and is usually used in conjunction with a litter box (or cat toilet). An appropriate amount of cat litter is poured into the litter box, and a trained cat will walk into the litter box and defecate on it when it needs to relieve itself.

[0003] Studies by animal research institutions both domestically and internationally have found that normal cat urine is slightly acidic, with a pH value between 5.5 and 7.5. Many cats suffering from diseases have urine pH values ​​that deviate from the normal range, becoming acidic or alkaline. Common causes of abnormal cat urine pH values ​​include feline lower urinary tract diseases or feline urinary tract syndrome. Urine with a high pH level tends to lead to the formation of magnesium crystals, while urine with a low pH level tends to lead to the formation of calcium crystals. Therefore, testing a cat's urine pH value can help predict its health status, allowing pet owners to take early preventative measures against certain feline diseases.

[0004] US Patent 6162646 discloses a basic cat litter material (such as bentonite) in which a pH indicator material with a polymer foam (especially polyurethane foam) as the matrix is ​​added to detect acidic or alkaline cat urine, thereby preventing lower urinary tract diseases in cats. European Patent EP0569232 discloses a cat litter with pH indicator function, whose composition is bentonite material with a non-absorbent calcium carbonate marble flakes, granite flakes, or a non-water-soluble polymer material (such as highly cross-linked sodium polyacrylate) added as the matrix material. A pH indicator material is formed by using a water-soluble polymer to bind the dye that performs the pH indicator function to the matrix material.

[0005] The base cat litter selected above is bentonite, while the pH indicator material uses plastic foam, highly cross-linked sodium polyacrylate polymer, or marble and granite slabs as a carrier. The disadvantage of bentonite is that it sticks to the cat's body after being soaked in urine, and bentonite can exchange ions with urine, potentially affecting the accuracy of the pH reading.

[0006] Therefore, there is a need to provide a cat litter with pH indicator based on cat urine and its preparation method, in order to solve the above problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a cat litter with pH indicator based on cat urine and its preparation method, thereby solving the problems mentioned in the background.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A cat litter with pH indicator for cat urine is made from the following raw materials in parts by weight: 1-2 parts deodorant, 3-5 parts fiber powder, 12-20 parts granules, 30-40 parts binder, 8-10 parts starch, 20-30 parts pH indicator and 10-20 parts silica gel.

[0010] As a further embodiment of the present invention, the adhesive is a 0.2%-0.5% aqueous solution of sodium carboxymethyl cellulose.

[0011] As a further embodiment of the present invention, the granules are crystals obtained by drying a mixture of ammonium chloride and gypsum powder under continuous stirring.

[0012] As a further embodiment of the present invention, the pH indicator comprises bromocresol green, phenolphthalein and 95% ethanol, wherein the mass fraction of bromocresol green is 0.1-0.5 parts, the mass fraction of phenolphthalein is 1-5 parts, and the mass fraction of 95% ethanol is 90-110 parts.

[0013] As a further aspect of the present invention, the silicone is 20-40 mesh.

[0014] A method for preparing a cat litter with pH indicator based on cat urine includes the following steps:

[0015] Step S1: Add the corresponding mass proportions of deodorant, fiber powder, binder, starch, granules, and silica gel to water and stir into a uniform paste, wherein the water content is 20%-40%;

[0016] Step S2: Dry the paste obtained in step S2 until the moisture content is 10%;

[0017] Step S3: Add the corresponding amount of pH indicator, and after adding an appropriate amount of 95% ethanol, homogenize the mixture;

[0018] Step S4: Granulation is performed, wherein the particle size is 2-3 mm;

[0019] Step S5: Dry the granules obtained in step S4 to obtain cat urine pH indicator cat litter.

[0020] As a further embodiment of the present invention, the drying temperature in step S2 is 150°C.

[0021] As a further embodiment of the present invention, the drying temperature in step S5 is 60°C.

[0022] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0023] This invention uses silica gel as a carrier, which does not affect the accuracy of pH testing. By selecting non-toxic reagents as pH indicators and limiting their dosage, it is non-irritating. Normal cat urine is weakly acidic, with a pH value between 5.5 and 7.5. If the pH value is below 5.4, the indicator appears blue-green to yellow; if the pH value is above 8.2, the indicator appears light red to purplish-red. This effectively indicates abnormal pH values ​​in cat urine. At the same time, the indicator and other components are coated on the surface of silica gel, rather than forming separate particles and mixing with silica gel particles, which facilitates absorption of cat urine and color development of the indicator. It has the effects of accurate testing, safety and non-toxicity, easy absorption, and abnormal color development indication.

[0024] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to specific embodiments. Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] In one embodiment of the present invention, a cat litter with cat urine pH indicator is made from the following raw materials in parts by weight: 1-2 parts deodorant, 3-5 parts fiber powder, 12-20 parts granules, 30-40 parts binder, 8-10 parts starch, 20-30 parts pH indicator and 10-20 parts silica gel.

[0028] In this embodiment, the adhesive is a 0.2%-0.5% sodium carboxymethyl cellulose aqueous solution, the granules are crystals obtained by drying a mixture of ammonium chloride and gypsum powder under continuous stirring, and the pH indicator is made of bromocresol green, phenolphthalein and 95% ethanol, wherein the mass fraction of bromocresol green is 0.1-0.5 parts, the mass fraction of phenolphthalein is 1-5 parts, the mass fraction of 95% ethanol is 90-110 parts, and the silica gel is 20-40 mesh. Bromocresol green and phenolphthalein are used as pH indicators. The pH color change range of bromocresol green is 3.8 (yellow)-5.4 (blue-green), and the pH color change range of phenolphthalein is 8.2 (light red)-10.0 (purple-red). Both bromocresol green and phenolphthalein are white or pale yellow crystalline powders, which are easy to judge by color.

[0029] In one embodiment of the present invention, a method for preparing a cat litter with cat urine pH indicator includes the following steps:

[0030] Step S1: Add the corresponding mass proportions of deodorant, fiber powder, binder, starch, granules, and silica gel to water and stir into a uniform paste, wherein the water content is 20%-40%;

[0031] Step S2: Dry the paste obtained in step S2 until the moisture content is 10%;

[0032] Step S3: Add the corresponding amount of pH indicator, and after adding an appropriate amount of 95% ethanol, homogenize the mixture;

[0033] Step S4: Granulation is performed, wherein the particle size is 2-3 mm;

[0034] Step S5: Dry the granules obtained in step S4 to obtain cat urine pH indicator cat litter.

[0035] In this embodiment, the drying temperature in step S2 is 150°C, and the drying temperature in step S5 is 60°C.

[0036] This invention uses silica gel as a carrier, which does not affect the accuracy of pH testing. By selecting non-toxic reagents as pH indicators and limiting their dosage, it is non-irritating. Normal cat urine is weakly acidic, with a pH value between 5.5 and 7.5. If the pH value is below 5.4, the indicator appears blue-green to yellow; when the pH value is above 8.2, the indicator appears light red to purplish-red. This effectively indicates abnormal pH values ​​in cat urine. At the same time, the indicator and other components are coated on the surface of silica gel, rather than forming separate particles and mixing with silica gel particles, which facilitates the absorption of cat urine and the color development of the indicator. It has the effects of accurate testing, safety and non-toxicity, and abnormal indication.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of preparing a cat litter for indicating the pH of cat urine, characterized by, The method comprises the following steps: Step S1: adding deodorant, fiber powder, adhesive, starch, granules and silica gel in corresponding mass fraction into water and stirring into a uniform paste, wherein the water content is 20%-40%; Step S2: drying the paste obtained in step S2 to a water content of 10%; the drying temperature is 150℃; Step S3: adding PH indicator in corresponding fraction and homogenizing after adding an appropriate amount of 95% ethanol; Step S4: granulating, wherein the particle size is 2-3mm; Step S5: drying the granules obtained in step S4 at a drying temperature of 60℃ to obtain cat urine PH indicating cat litter; The cat urine PH indicating cat litter is made of the following raw materials in weight fraction: deodorant 1-2 parts, fiber powder 3-5 parts, granules 12-20 parts, adhesive 30-40 parts, starch 8-10 parts, PH indicator 20-30 parts and silica gel 10-20 parts; the adhesive is 0.2%-0.5% sodium carboxymethyl cellulose aqueous solution; the granules are the crystal obtained by drying the mixture of ammonium chloride and gypsum powder obtained by mixing under continuous stirring; the PH indicator comprises bromocresol green, phenolphthalein and 95% ethanol, wherein the mass fraction of bromocresol green is 0.1-0.5 parts, the mass fraction of phenolphthalein is 1-5 parts and the mass fraction of 95% ethanol is 90-110 parts.

2. The method of claim 1, wherein the cat urine pH indicating litter is prepared by the steps of: The silica gel is 20-40 mesh.