JP2708377B2 - Pet toilet sand - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to pet litter used as litter for pet toilets such as cats and dogs.

[0002]

2. Description of the Related Art Many conventional pet toilet sands are mineral substances, and include crushed bentonite and granules obtained by mixing bentonite or zeolite powder. One of the more excellent minerals is Japanese Patent Publication No. 5-8647 (Japanese Patent No. 1801499, hereinafter referred to as a conventional example of the present applicant) filed by the present applicant.

[0003] One of the above-mentioned conventional toilet sands of the present applicant has a high ability to absorb urine and the like and a good deodorizing ability. In addition, when urine is added, a small amount of toilet sand that absorbs urine is added. Since only the lumps solidify as a lump, they also have the economy and good handling that only the lumps can be selectively discarded. However, it is still very useful at this time.

[0004] Such petty litter for "minerals" can be evaluated for its high basic ability as pet litter, but since it is mainly composed of minerals, its apparent specific gravity is generally high. May be too large to be easily handled on one side. One of the applicant's conventional toilet sands is intended to reduce the apparent specific gravity by granulating it into a porous material.
Although the apparent specific gravity is sufficiently small, it must be said that the specific gravity has not yet reached an appropriate specific gravity.

Furthermore, mineral pet litter, of course, has a problem that it cannot be handled as burning refuse after use. Especially for urban use, this is an important problem, because many households do not have a garden, and it is not easy to obtain a dump site. We have to increase our service to pet litter made mainly of paper and wood flour.

[0006] However, pet litter for pets, which has been granulated mainly using paper or wood flour, which has been proposed to date, has more basic properties as toilet sand than those of the above minerals, ie, water absorption and deodorization. It is inferior in its ability to form nodules due to urine that solidifies when it is exposed to urine, and furthermore, its apparent specific gravity is too small to adhere to the feet of pets such as cats using it. There is also a problem that it is easily scattered outside the toilet. Therefore, a user who has used one of the above-mentioned conventional toilet sands of the present applicant has to hesitate to change to a conventional toilet sand mainly made of paper or wood flour.

[0007] The applicant of the present invention further provides a powdered organic substance which can be handled as refuse which burns after use while maintaining the high basic performance as toilet sand of one of the prior art examples of the applicant. (Japanese Patent Laid-Open Publication No. Hei 5-212825, the second conventional example of the present applicant).

This pet toilet sand is obtained by kneading a mixture of 5 to 30% by weight of a water-insoluble superabsorbent resin powder and 50% by weight of wood flour in the presence of moisture, forming the mixture into granules, and drying. is there.

Therefore, the second conventional example of the applicant of the present invention has an advantage that since it is mainly composed of a highly water-absorbent resin powder and wood powder, it has extremely high water absorption and is flammable, so that it can be incinerated. have.

The second conventional example of the present applicant is very excellent as described above, but from the relation with its components,
It has become clear that the specific gravity of the generated toilet sand is too small, and there is a problem that, for example, it adheres to the feet of the pet during use and is easily scattered out of the toilet container.

[0011]

According to the present invention, the present invention has a basic property that it has high water absorption and deodorization properties, and has an excellent ability to form nodules by urine, and is additionally flammable. It is an object of the present invention to provide a pet toilet sand having an appropriate apparent specific gravity without causing a problem such as being attached to a pet's feet and moving and scattering outside the toilet.

[0012]

Means for Solving the Problems The gist of the constitution of the present invention is to add a nodule forming material which binds and solidifies adjacent toilet sand when urine is applied to granular coke. , Thereby covering the coke surface of the granules
This is pet toilet sand that has been granulated to a state , whereby the above problem can be solved.

[0013] The coke of the granular material is obtained by carbonizing coal and performing volatilization.
It is a granular material obtained by removing the emission.

[0014] The coke is a combustible material,
The role as a water-absorbing material and deodorant, despite having an appropriate specific gravity
Can also be responsible. The proper specific gravity is
Is about half of mineral-based materials, such as bentonite
Specific gravity can be considered. This coke will be described later
To get the unexposed toilet sand of this by granulating
It is made into granules.

As described above, the nodule-forming material is used to generate a nodule-forming ability when urine is applied to the toilet sand as a granulated material. CMC, MC or cornstarch, or an appropriate combination thereof.

[0017] In addition to the coke and boomer generation material of the above granules, various components may enhance the basic function of the litter, for example, superabsorbent polymers to enhance water absorption, zeolite to enhance the deodorizing effect Or other deodorants, or other functions, for example, components such as a fragrance having an aroma-generating action, an antibacterial agent having an antibacterial action, or a bactericide having a bactericidal action can be added as necessary. . The additive component is preferably flammable.

As described above, the pet litter for pets of the present invention comprises, as described above, bentonite or CMC, which is a lump forming material, added to coke granules , and if necessary, a superabsorbent resin, a deodorant, Granulate after mixing fragrance, antibacterial or bactericide and other ingredients.

Although granulation at a high density is not disadvantageous in itself, it is not apparently preferable that coke black is exposed on the surface of the granulated material . In that respect,
Techniques such as extrusion granulation, where such phenomena tend to occur,
Not appropriate. In the present invention, the nodulation material is coke
Granulation technique that can be coated on the surface of
Is used.

The pet litter of the present invention can be produced, for example, as follows. It goes without saying that other manufacturing methods can be adopted.

First, the ingredients necessary for the toilet sand are mixed to form a raw material mixture, and the raw material mixture is kneaded by a kneading means while being hydrated, and the particulate matter produced by the kneading is mixed in a cylindrical rotating body. Then, the cylindrical rotating body is rotated on its own, and the particulate matter charged therein is gently rolled in the inside to blow dry with hot air. Further, as described above, the particulate matter produced by the kneading is
It goes without saying that other techniques, for example, a technique of drying with a fluidized bed dryer may be used. Thus the granular
Manufacture into granules mainly composed of coke . By employing the above fabrication techniques, a state coated with Nodules generated material on the surface of the coke granules, Cork particulate material
The advantage is that black of the black is not exposed.

A more specific description is as follows. The raw material mixture is, for example, charged into a kneader or the like and kneaded, while the raw material mixture is, for example, 20 to 30.
Add about% water. The amount of water is not limited to this, and is determined while observing the kneading state. This kneading is continued until the state of water addition is averaged and an averaged granular material is formed.

The granules formed in this manner, granules
As coke, when it is used of 1 to 2 mm, grains of state boomer generation material containing the baby-boom generation material or other additives to the surface is coated to produce.

Next, the granular material produced as described above is sequentially charged in an appropriate amount into a rotary drier, and tumbled while hot air is being sent in, to be gradually dried. As described above, the granulated and dried granules are sieved to obtain, for example, particles having a particle size of about 1 to 5 mm.

It should be noted out above, is also generally be granulated using techniques of extrusion is a possible, granules U
However , there is a problem in the appearance that the use of flakes does not necessarily result in granules whose surface is coated with a nodule forming material, and tends to result in black granules. Therefore, in the present invention,
It is convenient.

[0025]

The pet litter of the present invention is used as a litter for a pet litter similarly to the general litter. In that case, because it is mainly made of granular coke , it has good water absorption and deodorization properties,
In addition, since a lump-forming material is added, when urine is applied, the litter-containing toilet sand is combined with each other to form a lump and has a good lump-forming ability. Therefore, it is economical and sanitary because only urine-laden toilet sand can be easily distinguished from other urine-free litter and only the urine can be removed.

More importantly, the main material is granular coke , and the toilet sand granulated by adding the nodule-forming material has an appropriate apparent specific gravity. When used as a flooring material, there is no problem such as sticking to feet and being scattered out of the toilet, or other easily scattered. The apparent specific gravity is about 0.5 to 0.6. It has an appropriate specific gravity, and there is no particular problem in carrying, and the above-described good results can be obtained.

Since the pet litter of the present invention is mainly composed of coke , which is a combustible substance, it can be used as a litter for pet toilets and then treated as burnable garbage. Furthermore, the surface of the granules is nodular
For mixtures with synthetic or nodular materials and other additives
Because it is covered, its original color black is not exposed
Become something.

[0028]

【Example】

Example 1 Coke and bentonite are mixed. The coke is used by pulverizing it into granules. The bentonite is provided in powder form and has a high viscosity. The mixing ratio of the above two components was coke: bentonite = 60: 40 (% by weight).

The raw material mixture thus obtained is charged into a kneader and kneaded. When a good mixing state is attained, water is further added while continuing to knead. When water is added while observing the progress of granulation, the water addition ratio is 25% with respect to the raw material mixture.
It became. During the kneading process, the raw material mixture hydrated in the kneader changed into large and small granules in which the surface of the coke granules was covered with bentonite.

Thereafter, the above-mentioned particulate matter containing water is sequentially charged into a rotary dryer, and is tumbled and transferred while being transferred.
It dried by sending hot air of 60 degreeC-60 degreeC. Since the granules containing water are dried while being gently rolled in the rotary drier, the granules do not bond with each other and become fat. Thereafter, the hot-air dried granules are sieved into granules of 1 to 5 mm. The remaining 1 to 5 mm granular material was used as pet litter.

Example 2 Coke, CMC, pulp powder and superabsorbent resin are mixed. The above coke is used in the form of pulverized granules. The pulp powder used is literally ground into a powder. A polyacrylate resin is used as the superabsorbent resin. The ratio of each of the above components was set as follows: coke: CMC: pulp powder: high water-absorbing resin = 70: 15: 10: 5 (% by weight).

The raw material mixture thus obtained is charged into a kneader and kneaded, and when a good mixing state is attained, water is further added while continuing to knead. When water is added while observing the progress of granulation, the water addition ratio is 20% with respect to the raw material mixture.
It became. During the kneading process, the raw material mixture containing water in the kneader changed into large and small granules in which the surface of the coke granules was covered with a kneaded product of CMC, pulp powder and superabsorbent resin.

Thereafter, the above-mentioned granulated material containing water is sequentially charged into a rotary dryer, and is tumbled and transferred while being transferred.
It dried by sending hot air of 60 degreeC-60 degreeC. The water-containing granules were dried while being gently rolled in the rotary dryer, so that they were bonded to each other and dried without fat. Thereafter, the hot-air dried granules are sieved into granules of 1 to 5 mm. The remaining 1 to 5 mm granular material was used as pet litter.

Example 3 Coke, bentonite and wood flour are mixed. The coke is pulverized and used as granules. The bentonite is provided as a powder, and has high viscosity. The wood powder used is crushed into powder. The ratio of each of the above component elements was set to coke: bentonite: wood flour = 50: 30: 20 (% by weight).

The raw material mixture thus obtained is charged into a kneader and kneaded. When a good mixing state is obtained, water is further added while continuing to knead. When water is added while observing the state of progress of granulation, the water addition ratio is 30% with respect to the raw material mixture.
It became. Raw material mixture contains water in a kneader in the course of kneading, and change the surface of the coke granules in granules of sizes covering is mixed <br/> kneaded with bentonite and wood flour.

Thereafter, the above-mentioned particulate matter containing water is successively charged into a rotary dryer, and is tumbled and transferred while being transferred.
It dried by sending hot air of 60 degreeC-60 degreeC. Since the granules containing water were dried while being gently rolled in the rotary dryer in this manner, the granules adhered to each other and dried without fatness. Thereafter, the hot-air dried granules are sieved into granules of 1 to 5 mm. 1 to 1
5 mm granular material was used as pet litter.

REFERENCE EXAMPLE 1 (Practicing one of the prior art examples of the present applicant) Finely pulverized bentonite is charged into a kneader and water is added while kneading. The water content is 25% based on the bentonite. Bentonite hydrated in the kneader changes into large and small granules. Thereafter, the granules containing water are successively charged into a rotary dryer, and are rolled and dried while being heated with hot air. Next, the hot air dried granules are sieved into granules of 1 to 5 mm.

Reference Example 2 (A second embodiment of the present applicant's conventional example) 20 parts by weight of a superabsorbent resin powder (polyacrylate resin) and 60 parts by weight of wood flour (hardwood dried and ground) And 20 parts by weight of zeolite powder, and 100 parts by weight of water are added and kneaded while spraying. The kneading was performed by a kneader. After the thus obtained kneaded material is granulated by an extrusion molding machine, the obtained granular material is charged into a rotary dryer, and is dried by hot air at 60 ° C. to 80 ° C. while being tumbled and transferred to obtain a particle size of 3 to 5 mm. A granular material having a length of 10 mm was obtained. This is the pet toilet sand.

Next, Table 1 shows the test results on the properties of Examples 1, 2, and 3 and Reference Examples 1 and 2 of the present invention.

[0040]

[Table 1]

In Table 1 above, the nodule forming power and flammability are as follows. Agglomeration ability: The mass of the material obtained in the water absorption test was pinched and pressed with fingers immediately after pouring water and after 48 hours, and the way of collapse or collapse was observed. Flammability: 10 g of toilet sand was heated with a gas burner to observe the burning state and the state of the residue after burning.

The toilet sand obtained in Examples 1, 2, and 3 has the following properties. As shown in Table 1, a proper apparent specific gravity of 0.45 to 0.55 was obtained, and the specific gravity was about 50 to 80% as compared with the conventional example 2 of the present applicant shown as Reference Example 2. Is increasing.
Thus, unlike the second conventional example, when used as a toilet litter, in which no longer problems, as or carried out toilet bowl attached to pet's feet.

The apparent specific gravity of the toilet sand obtained in Examples 1, 2, and 3 was about 56% to 70% of that of the prior art of the present applicant shown as Reference Example 1.
In addition, not only good results when used as a flooring material for the toilet, but also when carrying the same, the weight is not too heavy and the handling is not lost.

As shown in Table 1, Examples 1 and 2,
The toilet sand of No. 3 has an advantage that it can be treated as burnable refuse after use, though very slightly black or white burn residue remains. Reference Example 1 does not burn at all, and Reference Example 2 has good flammability. Examples 1, 2, and 3 are slightly inferior in flammability to Reference Example 2, but can be said to have sufficiently good flammability.

Furthermore, the litter obtained in Examples 1, 2 and 3 has a strong nodule-forming ability when exposed to moisture such as urine. The reciprocal grains instantaneously combine to form nodules. Moreover, as shown in Table 1, the baby boomer does not easily collapse even after a lapse of time.

In addition, the toilet sands obtained in Examples 1, 2 and 3 have sufficiently good performance as general toilet sand, that is, in terms of water absorption and deodorization. .

Thus, the toilet sand of Examples 1, 2 and 3 was
40cm square, 10cm deep box shaped pet toilet 5 ~
Although it was used by laying it on a thickness of about 6 cm, it has sufficient capacity for urine absorption and deodorization as described above, and has an appropriate apparent specific gravity as described above. There is no problem of easily scattering to the outside due to the adhesion and the transport to the outside. In addition, since it has sufficient nodule-forming ability by urine, it can be selectively removed only,
Since it has good flammability, it is possible to incinerate toilet sand that has become a lump. Therefore, it can be disposed of as burning garbage. Further, as described above, Embodiment 1
Large and small granules whose surface is covered with bentonite
In Example 2, the surface of the coke granules was treated with CMC and pulp.
Large and small granules covered with kneaded material of powder and superabsorbent resin
In Example 3, the surface of the coke granules was bentonite and wood.
The mixture kneaded with the powder became large and small granules covered. Accordingly
The black of each coke granule is not exposed.

[0048]

According to the pet toilet sand of the present invention, the apparent specific gravity is increased by 50% or more as compared with that of the second conventional example of the present applicant. If it does, there is no problem that it adheres to the pet's feet and is carried out of the toilet container and scattered around. In addition, the apparent specific gravity is smaller than that of one of the prior art examples of the applicant,
It is about 70% or less of that, and it is not too heavy when carrying it, and it has not lost easy handling.

The pet litter of the present invention is not incombustible as in the conventional example of the applicant of the present invention and has good flammability, so that after use, it can be treated as burning refuse.

Furthermore, the pet litter of the present invention has the same lump formation power as urine and the like in the case of urine and the like, and is far more than the conventional example 2 of the present applicant. Is excellent. And since only the part which absorbed urine becomes one lump by this strong lump generation power, it is easy to remove it only selectively and it is hygienic,
It will be economical.

The pet litter of the present invention also has excellent water absorbing and deodorizing properties. More books
The pet toilet sand of the invention is a granular coke which is its main material.
Surface is covered with nodules, etc.
Some black is not exposed.

Claims (5)

(57) [Claims] The present invention further comprises the step of adding a lump forming material which binds and solidifies adjacent toilet sand when urine is applied to the coke of the granular material , thereby covering the surface of the coke of the granular material.
Granulated pet litter. 2. Bentonite is used as the nodule forming material.
The pet toilet sand according to claim 1 used. 3. The pet litter according to claim 1, wherein CMC is used as said lump forming material . 4. The pet litter according to claim 1, wherein MC is used as said lump forming material . 5. A corn starch as a pre-Symbol baby-boom generation material
The pet toilet sand according to claim 1, which is employed .