JPH10150874A - Absorbent for animal excreta and manufacture therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excreta absorbent with the excellent absorptivity of excreta and a high deodorization effect utilizing bentonite. SOLUTION: The bentonite which is mainly sodium bentonite is turned to the grain diameter of 50μm-8000μm and the white fine powder of calcium hydroxide or calcium carbonate is added to it. Especially, the calcium hydroxide or the calcium carbonate is added to the bentonite for 0.1wt.%-10.0wt.% and they are mixed by using a mixer or the like thereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the excretion of animals such as dogs and cats, which are kept as pets, for absorbing feces and vomit, and being used for sleeping in animals that can stably aggregate and deodorize. The present invention relates to a substance absorbent and a method for producing the same.

[0002]

2. Description of the Related Art Animals such as cats that are kept as pets at home or the like have a habit of excreting manure at a predetermined place and are trained as such. Therefore, in order to facilitate the collection of excrement, the owner has installed a dedicated container such as a resin tray at a predetermined place as a toilet.

[0003] In particular, such containers conventionally contain straw, sawdust, wood chips, sand, cutting paper, and the like as an absorbent for excrement so as to reduce the spread of unpleasant odors and visual discomfort. I have. However, although these absorbents have a small cost burden, they are insufficient in the absorption and deodorization of excrement and vomit, so that discomfort cannot be eliminated. On the other hand, in some cases, a polymer absorber is partially used as a substitute, but this is relatively expensive and difficult to treat after use. Therefore, bentonite, which is relatively inexpensive and has an effect on the absorption and deodorization of excrement and vomit, attracts attention and has been put into practical use.

Bentonite is mainly composed of montmorillonite, silicate minerals such as quartz, opal and cristobalite, silicate minerals such as feldspar, zeolite and mica, and alkaline earths such as gypsum, dolomite and calcite. It is a clay containing metal salt minerals and the like, and has extremely high activity among clay minerals due to its crystal structure. In particular, it is porous, has deodorizing properties and water swelling properties, and has a cation exchange ability, and has been used for mud conditioners for boring, sand type binders for castings, agricultural chemical carriers, soil conditioners, or paint auxiliaries. It has been heavily used.

According to bentonite which is used as an excrement absorbent for animals such as cats, the excrement absorbs moisture and coagulates in a stable mass, so that unpleasant odors are not diffused and are well dispersed in water. Disposal is relatively easy due to dispersion.

[0006]

However, bentonite is a natural mineral and has various properties depending on the history of ore veins and formation factors, and its color tone does not change even when crushed, and in particular, has a large particle size. Is black with almost the same color as the original ore.

[0007] When used as an absorbent for excrement of cats and the like, blacks with poor appearance tend to be avoided because the general public purchases them for home use, and animals such as cats are also avoided. There is a property that prefers white color to black color. For this reason, bentonite of this kind has an enormous effect as an excrement collector for animals such as cats, but consumers have a low appetite for purchase and are not widely used.

Accordingly, the present invention is to provide a novel excrement absorbent based on white bentonite which is excellent in excrement absorption and deodorizing properties and which cats and other animals and their owners prefer. Is what you do.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to bentonite having a particle size of 50 to 8000 microns and a weight ratio of 0.1% to 10.0%.
% Slaked lime or calcium carbonate powder. In particular, in the present invention, sodium bentonite is used as the bentonite, which has a large output and can reduce the production cost.

On the other hand, the present invention relates to a method for producing such a kind of excrement absorbent, wherein bentonite is used in an amount of 50 to 8,000.
The powder is made to have a particle size of microns and slaked lime or calcium carbonate powder is added thereto in a weight ratio of 0.1 to 10.0% and mixed.

[0011]

According to the present invention, the particle size is from 50 microns to 800 microns.
By adding slaked lime (calcium hydroxide) or calcium carbonate powder as a white pigment to bentonite having a size of 0 μm, the particles are adsorbed on the surface of the bentonite to form a film. Slaked lime and calcium carbonate have a high light refractive index and are pigments having high coloring and hiding powers, and cover the surface of bentonite to make it white.

Of these, slaked lime is widely used as a building material such as mortar, and is also widely used as a neutralizer and fertilizer for acidic soil, and its safety has been sufficiently confirmed. In particular, since it is non-toxic, it does not harm animals at the time of use, and does not adversely affect soil or the environment when treated as waste. Furthermore, since it disperses well in water similarly to bentonite, even if it is discarded in a flush toilet, for example, the sewer pipe is not clogged and disposal after use is easy. In addition, slaked lime contains magnesium oxide as an impurity in practical use, and easily absorbs carbon dioxide in the air to easily become calcium carbonate. However, these are also white and have no problem in use.

On the other hand, calcium carbonate is widely used in building materials as a main raw material of Portland cement, and is also widely used in water-based paints, steelmaking, papermaking, toothpaste, etc., and its safety has been sufficiently confirmed. I have. In particular, since it is non-toxic, it does not harm animals at the time of use, and does not adversely affect soil or the environment when treated as waste. Furthermore, since it disperses well in water similarly to bentonite, even if it is discarded in a flush toilet, for example, the sewer pipe is not clogged and disposal after use is easy.

Here, slaked lime and calcium carbonate are added in an amount of 0.1% by weight to 10.0% by weight based on the bentonite. At this time, if the added amount is less than the range, the whiteness becomes insufficient, Conversely, even if the addition amount is increased, the progress of whiteness is small and cannot be commensurate with cost, and the absolute amount of bentonite is also reduced, which is a factor of lowering water absorption and deodorization.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, application examples of the present invention will be described in detail. FIG. 1 is a perspective view showing a toilet bowl for animals mainly composed of cats. The toilet 1 is integrally formed of a synthetic resin such as polyethylene, and the excrement absorbent 2 according to the present invention is accommodated in the toilet 1, for example.

The absorbent 2 has a particle size of 50 microns (μm)
This is obtained by adding lime (white powder of slaked lime or calcium carbonate) in a weight ratio of 0.1% to 10.0% to bentonite having a size of ８8000 microns. When excrement or the like is excreted in the toilet 1, the excrement 3 absorbs water from the excrement 3 and aggregates into a stable solid solid 4. For this reason, there is no fear that the excrement 3 adheres to the animal fur or the like and contaminate the surroundings, and since the excrement is solidified, the unpleasant odor is not diffused and there is no visual discomfort.

As is well known, bentonite is mainly composed of montmorillonite.
It belongs to the smectite group and the dioctahedral subgroup. Here, the 2: 1 layer type refers to a three-layer structure including a tetrahedral silicate layer, an octahedral alumina layer, and a tetrahedral silicate layer. this house,
A part of the aluminum in the alumina octahedron layer, which is the intermediate layer, is replaced by low-charged magnesium and lacks cations, and cations such as sodium, calcium, and magnesium are adsorbed on the surface of the crystal layer. These ions can be exchanged with other ions in water and are called exchangeable cations. Those that are mainly sodium ions are called sodium bentonite, and those that are calcium ions are called calcium bentonite.

FIG. 2 is a composition diagram of montmorillonite. 5 is a hydroxyl group, 6 is a silicon molecule, 7 is an oxygen molecule, 8 is an aluminum molecule (partially a magnesium molecule), 9 is an exchangeable cation, and the amount of sodium bentonite in which the exchangeable cation 9 is a sodium ion. In the present application, sodium bentonite is mainly used. The reason is that, as described above, the yield is large, the availability is reliable and easy, and the cost is reduced.

In addition, besides sodium bentonite, there are calcium bentonite, potassium bentonite, lithium bentonite, magnesium bentonite and the like.
It is also possible to use a mixture of two or more selected from them. For example, combinations thereof include sodium bentonite and calcium bentonite, sodium bentonite and potassium bentonite, sodium bentonite and magnesium bentonite, calcium bentonite and magnesium bentonite, and the like. Among them, the combination of sodium bentonite and calcium bentonite is known to be excellent in water absorption and dispersion in water, and will be useful as a main component of the excrement absorbent according to the present application.

The absorbent 2 according to the present invention has a particle size of 50 to 8000 microns of sodium bentonite, preferably, bentonite obtained by activating the sodium bentonite. 1 micron ~
Slaked lime made to 0.5 micron (generally powder)
It is obtained by adding and mixing calcium carbonate powder having a similar particle size.

The bentonite is 50 microns to 10 microns.
Fine powder of 00 microns or particle size of 10
Granules having a size of from 00 to 8000 microns can be used, but from the viewpoint of increasing whiteness, from 50 to 1 μm.
Preferably it is in the form of a powder of 000 microns.

Here, slaked lime is dried at a low temperature after reacting calcium oxide (quick lime) with water,
Alternatively, calcium carbonate or calcium nitrate is obtained by adding an aqueous solution of sodium hydroxide or potassium hydroxide containing no carbon dioxide to an aqueous solution of calcium chloride or calcium nitrate and allowing it to crystallize, while calcium carbonate crushes limestone, calcite, marble, etc. Can be obtained by adding
0.1 to 1 by weight based on the dried bentonite
0.0%, preferably 0.5% to 5.0% by weight.

The method of mixing bentonite and slaked lime, or bentonite and calcium carbonate, includes (1) a method of mixing with a mixer, and (2) a method of adding slaked lime or calcium carbonate powder onto a belt conveyor for transporting bentonite. And (3) a method of directly adding slaked lime or calcium carbonate powder from a dropper of a hopper containing bentonite, and (4) a method of batch mixing using a drum. In the present application, 10 Kg of bentonite and 100 g of agitator-type mixer which was pulverized into granules and subjected to particle size adjustment were tested experimentally.
Was added and mixed with stirring for 90 seconds. According to this sample, the whiteness of magnesium oxide was 100, and the whiteness of bentonite, which was 25 before the addition of slaked lime, could be increased to 70.

Further, a test under the same conditions was carried out using a white powder of calcium carbonate, and the same whiteness improving effect was obtained.

As a result, according to the excrement absorbent according to the present invention, the feces and urine are excreted in the place where the cat is disposed, and the animal prefers the place where the absorbent is arranged. . This means that the training for instructing the animal on the place of excretion is no longer bothersome, and that the owner is more likely to purchase. In particular, animal owners
In addition to such an effect, consumers tend to select a white color that looks good as the color tone of the product itself and is in harmony with the decoration of the room or the like, which is convenient for consumers.

Moreover, since the excrement generally shows a color close to black, it is easy to distinguish between the excrement and the absorbent, and therefore, after the animal excretes manure, only that part is removed. By replenishing the absorbent, the cost burden can be reduced.

Although the present invention has been described mainly as an excrement absorbent for cats, the excrement absorbent according to the present invention is not limited to cats, but may be applied to animals such as dogs, mice, rats, hamsters and guinea pigs. Apply.

[0028]

As is clear from the above description, according to the present invention, since the animal excrement absorbent is based on bentonite, the excrement can be aggregated into a stable solid solid. . For this reason, excrement does not adhere to the fur of the animal and the surroundings are not stained, and the properties thereof are also changed, so that there is no visual discomfort and the diffusion of unpleasant odor can be prevented.

In particular, the addition of slaked lime or calcium carbonate to bentonite makes animals and their owners prefer a white system, and as a result, animals prefer to excrete in predetermined places. It does not excrete casually, and the owner's purchase desire rises.

Further, slaked lime and calcium carbonate have no toxicity similarly to bentonite, so they are safe without harm to animals and their owners. Furthermore, since they are well dispersed in water, they are easy to dispose after use and are environmentally friendly. Has no adverse effect.

Further, since the bentonite has a particle size of 50 to 8000 microns, a film made of slaked lime or calcium carbonate is formed well, and the whiteness is increased. Also,
Slaked lime and calcium carbonate can be produced at a relatively low cost because the effect of whiteness is sufficiently improved only by adding a small amount of 0.1 to 10% by weight to bentonite, and the yield is large. The cost can be significantly reduced by using sodium bentonite.

[Brief description of the drawings]

FIG. 1 is a perspective view in which a part of an animal toilet is cut away and shown.

FIG. 2 Composition diagram of montmorillonite, which is a main component of bentonite

[Explanation of symbols]

 Reference Signs List 1 toilet bowl for animal 2 excrement absorbent 3 excrement 4 solid matter 5 hydroxyl group 6 silicon molecule 7 oxygen molecule 8 aluminum molecule 9 exchangeable cation

Claims (3)

[Claims] A weight ratio of bentonite having a particle size of 50 to 8000 microns is 0.1% to 10.1%.
An animal excrement absorber obtained by adding 0% slaked lime or calcium carbonate powder. 2. The animal excrement absorbent according to claim 1, wherein the bentonite is sodium bentonite. 3. The method according to claim 3, wherein the bentonite has a particle size of 50 to 8000.
A method for producing an animal excrement absorbent, comprising: adding a powder of slaked lime or calcium carbonate to a micron particle diameter of 0.1 to 10.0% by weight and mixing the powder;