WO2014146287A1 - Matériau indicateur de ph d'urine de chat, litière pour chat indicatrice de santé et procédé pour la préparation de litière pour chat indicatrice de santé - Google Patents

Matériau indicateur de ph d'urine de chat, litière pour chat indicatrice de santé et procédé pour la préparation de litière pour chat indicatrice de santé Download PDF

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Publication number
WO2014146287A1
WO2014146287A1 PCT/CN2013/073031 CN2013073031W WO2014146287A1 WO 2014146287 A1 WO2014146287 A1 WO 2014146287A1 CN 2013073031 W CN2013073031 W CN 2013073031W WO 2014146287 A1 WO2014146287 A1 WO 2014146287A1
Authority
WO
WIPO (PCT)
Prior art keywords
indicator
indicating
indicating material
cat
silica gel
Prior art date
Application number
PCT/CN2013/073031
Other languages
English (en)
Chinese (zh)
Inventor
李永兆
Original Assignee
青岛美高集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛美高集团有限公司 filed Critical 青岛美高集团有限公司
Priority to PCT/CN2013/073031 priority Critical patent/WO2014146287A1/fr
Publication of WO2014146287A1 publication Critical patent/WO2014146287A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
    • A01K1/0152—Litter
    • A01K1/0154—Litter comprising inorganic material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
    • A01K1/0152—Litter

Definitions

  • the present invention relates to a pH indicating material and a health indicating cat litter capable of indicating whether a urine value of a mammalian pet (especially a cat) is within a normal range and a preparation method thereof.
  • the normal urine of cats is weakly acidic, with a pH between 5.5 and 7.0.
  • the pH of the urine of many cats with disease shifts from the normal range to acidic or alkaline.
  • Cat urine The common cause of abnormal pH is cat urinary tract disease or cat urinary system syndrome.
  • Urine with a high pH tends to cause the formation of magnesium crystals, and urine with a low pH tends to cause the formation of calcium crystals. Therefore, the cat's health can be predicted by examining the pH of the cat's urine so that the pet owner can anticipate certain diseases of the cat.
  • U.S. Patent No. 6,162,646 provides a basic litter material (e.g., bentonite) to which a pH indicator material based on a polymer foam (especially polyurethane foam) is added for the detection of acidic or alkaline cat urine.
  • a pH indicator material based on a polymer foam (especially polyurethane foam)
  • European Patent EP0569232 discloses a cat litter having a pH indicating function, which is added to a bentonite material by a non-absorbent calcium carbonate marble piece, a granite piece or a water-insoluble polymer material (for example, high-crossing) Sodium polyacrylate)
  • a pH indicating material in which a pH-indicating dye is bonded to a matrix material using a water-soluble polymer.
  • the patent specifically states that the matrix material is preferably a non-absorbent, reflective inert carrier such that the pH indicator dye can be readily encapsulated by the water soluble polymer and retained in the inert carrier (matrix) material.
  • the matrix material is preferably a non-absorbent, reflective inert carrier such that the pH indicator dye can be readily encapsulated by the water soluble polymer and retained in the inert carrier (matrix) material.
  • the basic cat litter selected in the above two patents is bentonite, and the substrate of the pH indicating material is made of plastic foam, highly crosslinked sodium polyacrylate polymer material or marble or granite flakes. Swelling
  • the disadvantage of soil is that the urine will stick to the cat after it is wet, and the bentonite will have ion exchange with the urine, which may affect the accuracy of the pH indication.
  • the polymer material itself has the function of adsorbing cat urine, since it is opaque, the water-soluble polymer and/or the water-soluble pH indicating dye enters the inside of the matrix material and causes waste.
  • the pH indicating materials disclosed in the above two patents differ from the basic litter materials in terms of density, which may result in uneven distribution of the pH indicating material in the litter, and also affect the color development and color change effect of the cat litter as a whole. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a cat urine pH indicating material and a health indicating cat litter and a preparation method thereof, wherein the pH indicating material in the cat litter product is evenly distributed, and can sensitively and stably indicate the pH of the cat urine.
  • PH between 5.0-7.0 is orange to brownish yellow
  • PH ⁇ 7.0 is light green to blue green.
  • the invention provides a cat urine pH indicating material, which comprises a silica gel as a carrier, a pH mixing indicator containing 0.001-2% of the total weight of the pH indicating material, and 0.5-20% of a water-soluble polymer, wherein the pH mixing indicator Includes methyl red and indicator A in a weight ratio of 1: 15-1:1.
  • the pH mixing indicator accounts for 0.001-2%, preferably 0.002-1.5% of the total weight of the pH indicating material; the water-soluble polymer accounts for 0.5-20%, preferably 1.0-10% of the total weight of the pH indicating material; pH mixing indicator
  • the weight ratio of methyl red to indicator A is 1: 15-1:1, preferably 1:10-1:2.
  • the water-soluble polymer may be one of polyvinylpyrrolidone, polyethylene glycol, propylene glycol, glycerin, or polyvinyl alcohol or a mixture of any two or more thereof.
  • the polyvinylpyrrolidone (PVP) in the water-soluble polymer preferably has a weight average molecular weight ranging from 2,000 to 500,000; polyethylene glycol (PEG) The weight average molecular weight preferably ranges from 200 to 20,000, more preferably from 200 to 1,500; and the polyvinyl alcohol (PVA) weight average molecular weight preferably ranges from 1,000 to 35,000.
  • the carrier silica gel is a common silica gel product.
  • the block silica gel has an average pore volume of 0.5-1.8 ml/g, a bulk density of 200-700 g/L, and a particle size of 0.5-4 mm ;
  • the invention provides a pH indicating silica gel litter prepared by using the foregoing pH indicating material, which is characterized by comprising a mixture of a pH indicating material and a base silica gel, wherein the pH indicating material accounts for 1-20% of the total weight of the silica gel litter, preferably 2 -15%.
  • the base silica gel is a common silica gel product, preferably used as a block silica gel for cat litter, having an average pore volume of 0.5-1.8 ml/g, a bulk density of 200-700 g/L, and a particle size of 0.5-4 mm;
  • the silica gel as a carrier in the pH indicating material may be the same or different in pore structure such as a surface or a pore volume.
  • a block silica gel having the same specifications as the silica gel in the pH indicator material is used.
  • the acidic pH of the pet urine of the problem is about 6.0 or less.
  • the methyl red color changes from yellow to red. Therefore, a red appearance shows that the cat excretes the problematic acidic urine.
  • the problematic pet's urine is alkaline pH, it may show that the cat may have urinary syndrome, for example, when the pH is between 7.0 and 8.0, the indicator A will change from yellow to blue or purple, plus yellow. Methyl red, pH mixed indicator will appear green to blue-violet.
  • a method for preparing a pH indicator silica gel litter includes the following steps:
  • step (c) Mixing the pH indicator material prepared in (b) with the untreated base silica gel.
  • the amount of the mixed solution of sodium hydroxide and water, the amount of sodium hydroxide (or an alkaline solution mainly composed of sodium hydroxide), and the amount of water are preferably 1:1000.
  • the weight concentration of the pH indicator is preferably from 0.1 to 1.0% by weight; and the concentration of the aqueous solution of the water-soluble polymer is preferably from 2 to 8% by weight.
  • the drying temperature is preferably 80-110 ° C; the preferred temperature is more favorable for ensuring the health indication of the orange color of the cat litter, which is advantageous for color development accuracy.
  • the preparation method of the silica gel cat litter of the present invention may be carried out by using the above-mentioned step, or by first impregnating the carrier silica gel with an aqueous solution of a water-soluble polymer for a period of time, and then adding a pH indicator solution for dip dyeing, wherein the carrier is impregnated with the aqueous solution of the water-soluble polymer.
  • the time of the silica gel is not critical and can be carried out from a few minutes to a few hours by simply dipping the water soluble polymer into a portion of the silica gel.
  • This preparation method has the effect of allowing the pH indicator to enter the internal pores of the carrier silica less, which can increase the sensitivity of the pH indicator material to color development when it encounters pet excrement.
  • the health indicator silica gel litter of the present invention overcomes the deficiency of the existing pH indicating cat litter, and the carrier of the pH indicating material and the basic litter are all made of the same material, silica gel, to make the dispersion of the two more uniform. Moreover, because of the chemical stability of silica gel, it does not have the significant ion exchange properties like bentonite, so it does not interfere with the pH of cat urine and improves the test accuracy.
  • the pH indicator material in the silica gel cat litter of the present invention is silica gel loaded with a water soluble polymer and two pH indicators.
  • One of the indicators has a significant color change when detecting a solution having a pH of less than 5.0, and another indicator has a significant color change when detecting a solution having a pH greater than 7.0.
  • it is used as a cat litter additive to indicate that cat urine is acidic pH (pH below approximately 5.6), or to indicate cat urinary system syndrome (cat urine pH 7.4 or above).
  • the urine when the urine is brought into contact with the pH indicating silicone cat litter of the present invention, it is absorbed by the pH indicating material uniformly dispersed therein, and with the pH supported on the surface thereof and a small portion entering the inside thereof.
  • the mixed indicator is contacted so that it indicates the pH of the cat's urine.
  • Urine at different pH values will cause the pH indicator material to show a different color.
  • the silica gel itself is transparent, even a pH mixing indicator that has entered the silica gel carrier of the pH indicator material does not waste, and It is a change in color that is reflected by the refraction of light.
  • the water-soluble polymer in the present invention can uniformly disperse the pH mixing indicator (dye:) in the solution at the time of preparation, on the other hand, a barrier film can be formed after the pH indicating material is dried, which can prevent The pH mixing indicator (dye) diffuses and penetrates into the internal pores of the carrier silica gel, so that most of the pH indicator dyes are supported on the surface of the carrier silica gel, which increases the sensitivity of color development.
  • the silica gel litchi containing the pH indicating material of the present invention has significant advantages over the prior art pH indicating cat litter. As described above, since it ensures the consistency of the pH indicating material carrier and the basic litter in the material, the pH indicating material in the litter product is uniformly distributed, and the pH of the cat urine can be sensitively and stably indicated; PH of the present invention
  • the indicator material is more obvious in terms of coloration indication, PH ⁇ 5.0 color from light red to bright red, PH between 5.0-7.0 is orange to brownish yellow, PH ⁇ 7.0 is light green to blue-green; the product of the invention has low production cost Non-toxic, non-radioactive, simple and easy to prepare, and beautiful in appearance.
  • the pH indicator dyeing solution contains 0.5wt% methyl red mixed with indicator A indicator (methylene red and indicator A weight ratio is 1/6), 5wt% PVP-10000, after soaking for 3 hours, drying moisture at 100 °C Up to 4 wt% or less, this pH indicating material contained 0.5 wt% of a mixed indicator, and 5 wt% of PVP-10000.
  • the obtained pH indicating material is mixed with the same specification of silica gel so that the weight percentage of the pH indicating material is 4 wt%, and the performance test data of the silica gel litter is shown in Table 6: Table 6

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Housing For Livestock And Birds (AREA)

Abstract

L'invention porte sur un matériau indicateur de potentiel hydrogène (pH) d'urine de chat, sur une litière pour chat indicatrice de santé et sur un procédé pour la préparation de litière pour chat indicatrice de santé. Le matériau indicateur de pH d'urine de chat utilise du gel de silice comme support et comprend un indicateur de pH mélangé représentant 0,001-2 % du poids brut du matériau indicateur de pH et un polymère hydrosoluble représentant 0,5-20 % du poids brut du matériau indicateur de pH et le rapport pondéral du rouge de méthyle à un indicateur A qui sont compris dans l'indicateur de pH mélangé est de 1:15-1:1. La litière pour chat indicatrice de santé est formée par un mélange du matériau indicateur de pH et de gel de silice et le matériau indicateur de pH représente 1-20 % du poids brut de la litière pour chat. Du fait que l'uniformité entre le support de matériau indicateur de pH et le gel de silice basique est assurée dans les matériaux, le matériau indicateur de pH est uniformément réparti dans les produits de type litière pour chat et peut indiquer de façon sensible et stable une valeur de pH d'urine de chat. La litière pour chat a un faible coût de production, n'a pas de toxine, n'a pas de radioactivité, a un processus de préparation simple et facile et a un aspect et une couleur intéressants.
PCT/CN2013/073031 2013-03-22 2013-03-22 Matériau indicateur de ph d'urine de chat, litière pour chat indicatrice de santé et procédé pour la préparation de litière pour chat indicatrice de santé WO2014146287A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/073031 WO2014146287A1 (fr) 2013-03-22 2013-03-22 Matériau indicateur de ph d'urine de chat, litière pour chat indicatrice de santé et procédé pour la préparation de litière pour chat indicatrice de santé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/073031 WO2014146287A1 (fr) 2013-03-22 2013-03-22 Matériau indicateur de ph d'urine de chat, litière pour chat indicatrice de santé et procédé pour la préparation de litière pour chat indicatrice de santé

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WO2014146287A1 true WO2014146287A1 (fr) 2014-09-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110583496A (zh) * 2019-09-06 2019-12-20 孙雨强 猫尿液pH指示材料和pH指示猫砂及其制备方法
CN111134026A (zh) * 2020-02-05 2020-05-12 青岛农业大学 一种抑菌防虫的玉米芯猫砂

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569232A1 (fr) * 1992-05-05 1993-11-10 Anitox Corporation Matériau indiquant le pH et litière pour chats le contenant
JP2000333547A (ja) * 1999-05-28 2000-12-05 Daiki:Kk 粒状の排泄物処理材及びその製造方法
CN101672799A (zh) * 2009-10-13 2010-03-17 青岛美高集团有限公司 猫尿液pH指示材料和一种pH指示硅胶猫砂及其制备方法
JP2012050405A (ja) * 2010-09-03 2012-03-15 Daio Paper Corp ペット用吸収性シート

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569232A1 (fr) * 1992-05-05 1993-11-10 Anitox Corporation Matériau indiquant le pH et litière pour chats le contenant
JP2000333547A (ja) * 1999-05-28 2000-12-05 Daiki:Kk 粒状の排泄物処理材及びその製造方法
CN101672799A (zh) * 2009-10-13 2010-03-17 青岛美高集团有限公司 猫尿液pH指示材料和一种pH指示硅胶猫砂及其制备方法
JP2012050405A (ja) * 2010-09-03 2012-03-15 Daio Paper Corp ペット用吸収性シート

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110583496A (zh) * 2019-09-06 2019-12-20 孙雨强 猫尿液pH指示材料和pH指示猫砂及其制备方法
CN111134026A (zh) * 2020-02-05 2020-05-12 青岛农业大学 一种抑菌防虫的玉米芯猫砂

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