JP2022082845A - Excrement treatment material and production method thereof - Google Patents

Abstract

To provide an excrement treatment material which is hardly scattered in the surrounding of a toilet bowl, and a production method thereof.SOLUTION: An excrement treatment material 1 is formed of many granular materials 10 which absorb excrement. The excrement treatment material 1 has a granular material group 20. The granular material group 20 is formed by mutual adhesion of a plurality of granular materials 10 before use included in many granular materials 10. The plurality of granular materials 10 forming the granular material group 20 includes a granular material 30 and a granular material 40. The granular material 30 has a granular first core part and a coating part including an adhesive material and covering the first core part. The granular material 40 has an uncovered granular second core part.SELECTED DRAWING: Figure 1

Description

The present invention relates to an excrement treatment material and a method for producing the same.

As a conventional excrement treatment material, for example, there is one described in Patent Document 1. The excrement treatment material described in the same document is an excrement treatment material for animals and is composed of a large number of particles having water absorption. This excrement treatment material is used in a state where a large number of granules are laid in a box-shaped toilet.

Japanese Unexamined Patent Publication No. 2007-190026

In the above-mentioned toilet, animals such as cats excrete while directly on the excrement treatment material. Therefore, there is a problem that the granules are caught or adhered to the animal's paws during excretion, and the granules are scattered around the toilet after excretion.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an excrement treatment material that is less likely to be scattered around a toilet and a method for producing the same.

The excretion treatment material according to the present invention is an excretion treatment material composed of a large number of granules that absorb excrement, and the plurality of particles contained in the large number of granules before use are adhered to each other. The plurality of granules comprising the granular body group and constituting the granular body group have a first granular portion and a covering portion containing an adhesive material and covering the first core portion. It is characterized by including 1 granular material and a 2nd granular material having a second core portion of exposed granular material.

In this excrement treatment material, a group of granules formed by adhering a plurality of granules before use to each other is provided. Naturally, the particle size and mass of the granule group are larger than those of the individual granules constituting the granule group. Therefore, it is possible to prevent the granules from being pinched or attached to the animal's paw as compared with the case where the plurality of granules are separated from each other.

Further, the method for producing an excrement treatment material according to the present invention is a method for producing an excrement treatment material composed of a large number of granules that absorb excrement, and is a step of forming each of the granules forming the large number of granules. And a granular body group forming step of forming a granular body group formed by adhering a plurality of unused granules contained in the large number of granular bodies formed in each of the granular body forming steps to each other. The plurality of granules constituting the granular body group include a first granular body having a first granular portion and a covering portion containing an adhesive material and covering the first core portion. It is characterized by containing a second granular body having an exposed granular second core portion.

In this production method, a group of granules formed by adhering a plurality of granules before use to each other is formed. Naturally, the particle size and mass of the granule group are larger than those of the individual granules constituting the granule group. Therefore, in the excrement treatment material after production, it is possible to make it difficult for the granules to be caught or adhered to the animal's paw as compared with the case where a plurality of granules are separated from each other.

According to the present invention, an excrement treatment material that is less likely to be scattered around the toilet and a method for producing the same are realized.

It is a schematic diagram which shows one Embodiment of the excrement treatment material by this invention. It is a schematic diagram which shows the granular body 30. It is a schematic diagram which shows the granular body 40. It is a figure for demonstrating the flow of the manufacturing method of the excrement treatment material which concerns on one Embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted.

FIG. 1 is a schematic view showing an embodiment of the excrement treatment material according to the present invention. The excrement treatment material 1 is an excrement treatment material used for treating excrement (particularly urine), and is composed of a large number of granules 10 that absorb the excrement. Here, "many" means a number of 10 or more. The excrement treatment material 1 may be an excrement treatment material for animals that treats excrement of animals such as cats and dogs, or an excrement treatment material for humans that treats human excrement. It is also good. The excrement treatment material 1 is used, for example, in a state where a large number of granules 10 are laid in a box-shaped toilet.

Each of the granules 10 has water absorption, and treats the excrement by absorbing the excrement. The particle size of each granular material 10 is, for example, 5 mm or more and 15 mm or less. Here, the particle size of the granular material 10 is defined as the diameter of the smallest sphere that can contain the granular material 10.

Each of the granules 10 is mainly made of an organic substance. Here, the main material of the granular material 10 means a material having the largest weight ratio in the granular material 10 among one or more materials constituting the granular material 10. As such an organic substance, for example, papers, tea leaves, plastics or okara can be used. Each of the granules 10 may be composed of only an organic substance, or may be composed of an organic substance and an inorganic substance.

Paper refers to a material mainly composed of pulp. Examples of the paper include, in addition to ordinary paper, a vinyl chloride wallpaper grader (paper obtained by classifying the vinyl chloride wallpaper), fluff pulp, papermaking sludge, pulp sludge, and the like. As the plastics, for example, a disposable diaper grader (plastic obtained by classifying the disposable diaper) may be used. The okara is preferably dried okara.

The excrement treatment material 1 includes a granular group 20. The granular body group 20 is composed of a plurality of granular bodies 10 contained in the large number of granular bodies 10 (all the granular bodies 10 constituting the excrement treatment material 1) described above. Specifically, the granule group 20 is formed by adhering a plurality of granules 10 before use to each other. The granular body group 20 is preferably formed by n (n is an integer of 2 or more and 5 or less) of granular materials 10 bonded to each other. Further, the particle size of the granular material group 20 is preferably 1.5 times or more and 3 times or less the particle size of each granular material 10 constituting the granular material group 20. Here, the particle size of the granular group 20 is defined as the diameter of the smallest sphere that can contain the granular group 20.

The excrement treatment material 1 includes a plurality of granular body groups 20. The number of granules 10 constituting each granular group 20 may be equal to each other or different from each other. In the latter case, the plurality of granular body groups 20 are the first granular body group in which p (p is an integer of 2 or more) granules 10 are adhered to each other, and q (q is different from p 2). It means that the granules 10 of the above integers) include a second group of granules that are adhered to each other. It should be noted that all of the "many granular bodies 10" may form the granular body group 20, or only a part of the "many granular bodies 10" may form the granular body group 20. In the latter case, the remaining granules 10 exist alone without adhering to the other granules 10. As described above, in the excrement treatment material 1, all or a part of the granules 10 constituting the excrement treatment material 1 adhere to the other granules 10 before use (before receiving the excrement) and are granular. Forming body group 20.

The plurality of granular bodies 10 constituting each granular body group 20 include a granular body 30 (first granular body) and a granular body 40 (second granular body). That is, each granular body group 20 includes at least one granular body 30 and at least one granular body 40.

FIG. 2 is a schematic view showing the granular body 30. Each granular body 30 has a core portion 32 (first core portion) and a covering portion 34. The core portion 32 is a granulated product formed into granules. Examples of such granular shapes include cylinders, spheres, ellipsoids, and the like. The core portion 32 has a function of absorbing and retaining water in excrement. The core portion 32 is mainly made of an organic substance. The core portion 32 does not contain an adhesive material. Adhesive materials include, for example, water-absorbent polymers, CMC (carboxymethyl cellulose), PVA (polyvinyl alcohol), or dextrins. Each granular body 30 has only one core portion 32 (granulated product).

The covering portion 34 covers the core portion 32. The covering portion 34 may cover the entire surface of the core portion 32, or may cover only a part of the surface of the core portion 32. The covering portion 34 has a function of adhering granules 10 (granular group 20) that have absorbed excrement during use to form a mass. The covering portion 34 contains an adhesive material. The covering portion 34 also uses an organic substance as a main material.

FIG. 3 is a schematic view showing the granular body 40. Each granular body 40 has a core portion 42 (second core portion). The core portion 42 is a granulated product formed into granules. The core portion 42 has a function of absorbing and retaining water in excrement. The core portion 42 is mainly made of an organic substance. In the present embodiment, the core portion 42 is made of a material having substantially the same composition as the core portion 32. The core 42 does not contain an adhesive material. Further, the core portion 42 has substantially the same shape and size as the core portion 32. In each granular body 40, the core portion 42 is exposed. That is, the covering portion is not provided on the core portion 42, and the entire surface of the core portion 42 is exposed. As described above, the granular body 30 has a multi-layer structure composed of the core portion 32 and the covering portion 34, while the granular body 40 has a single-layer structure composed of only the core portion 42.

Subsequently, as an embodiment of the method for producing the excrement treatment material according to the present invention, an example of the method for producing the excrement treatment material 1 will be described. This production method includes each granular body forming step and a granular body group forming step. Each granular body forming step is a step of forming a large number of granular bodies 10. Each granular body forming step includes a first granular body forming step and a second granular body forming step.

The first granular body forming step is a step of forming the granular material 30. This step includes a first core portion forming step and a covering portion forming step. The first core portion forming step is a step of forming the core portion 32. In this step, the core portion 32 is formed by granulating the core portion material (material constituting the core portion 32) using a granulation device. In this embodiment, a plurality of core portions 32 are formed. As the granulator, for example, an extrusion granulator can be used. Prior to granulation, the core material is subjected to pretreatment such as crushing, kneading, and water addition as necessary.

The covering portion forming step is a step of forming the covering portion 34. In this step, the covering portion 34 is formed by adhering a powdery covering material (material constituting the covering portion 34) to the surface of the core portion 32 using a coating device or the like. The coating material contains an adhesive material. Adhesion of the coating material can be performed, for example, by spraying or spraying. As a result, the granular material 30 is obtained.

The second granular body forming step is a step of forming the granular material 40. This step includes a second core forming step. The second core portion forming step is a step of forming the core portion 42. In this step, the core portion 42 is formed by granulating the core portion material (material constituting the core portion 42) using a granulation device. In this embodiment, a plurality of core portions 42 are formed. In the second granular body forming step, the core portion 42 is not covered. As a result, the granular body 40 in which the core portion 42 is exposed can be obtained.

The granular group forming step is a step of forming the granular group 20. In this step, the granule group 20 is formed by adhering a plurality of granules 10 (granular bodies 30, 40) formed in each granular body forming step to each other. At this time, at least one granular body 30 and a granular body 40 are included in each granular body group 20. For the adhesion between the granules 10, for example, an adhesive material can be used. As the adhesive material for adhering the granules 10 to each other, the adhesive material contained in each of the granules 30 may be used, or the adhesive material separately prepared (not contained in each of the granules 30). Adhesive material) may be used. In the former case, for example, the surface of each of the granules 30 can be appropriately moistened by adding water to the surface of the granules 30, and the plurality of granules 10 can be pressed against each other to adhere the granules 10 to each other. can. In this embodiment, a plurality of granule groups 20 are formed.

FIG. 4 is a diagram for explaining the flow of the manufacturing method according to the present embodiment. In the present embodiment, the first core portion forming step and the second core portion forming step are simultaneously executed using the same device (step S51). That is, the first and second core forming steps are executed as one step. In this step, a plurality of granulated products to be the core portion 32 and the core portion 42 are formed by granulating a common core portion material using a granulation device. After that, the division step is executed (step S52). The dividing step is a step of dividing a plurality of granulated products into a first group and a second group at a predetermined ratio. The granulated product divided into the first group becomes the core portion 32, and the granulated product divided into the second group becomes the core portion 42. In the covering portion forming step (step S53), the covering portion (covering portion 34) is formed only for the granulated products divided into the first group. After that, the above-mentioned granular body group forming step is executed (step S54). As a result, the excrement treatment material 1 having the granular body group 20 is obtained.

The effect of this embodiment will be described. In the present embodiment, a granular body group 20 formed by bonding a plurality of granular bodies 10 before use to each other is formed. Naturally, the particle size and mass of the granular group 20 are larger than those of the individual granular bodies 10 constituting the granular group 20. Therefore, in the excrement treatment material 1, it is possible to make it difficult for the granules 10 to be pinched or adhered to the animal's paw as compared with the case where the plurality of granules 10 are separated from each other. Therefore, an excrement treatment material 1 that is less likely to be scattered around the toilet and a method for producing the same have been realized.

By the way, as a means for obtaining granules that are difficult to be pinched or adhered to an animal's paw, it is conceivable to form granules having a large particle size from the beginning. However, if an attempt is made to increase the particle size of each granular material, there may be an adverse effect such that the granulated product tends to collapse during production. In this respect, according to the present embodiment, it is possible to obtain a granular group 20 having a large particle size without increasing the particle size of each granular body 10.

Further, the plurality of granules 10 constituting the granule group 20 include the granules 30 and the granules 40. The granular body 30 has a granular core portion 32 and a covering portion 34 that contains an adhesive material and covers the core portion 32. On the other hand, the granular body 40 has an exposed granular core portion 42. By providing the covering portion only on a part of the granules (granular body 30) in this way, the amount of the covering material used can be saved. Further, the adhesive action of the covering portion 34 provided on the granular body 30 extends to the granular body group 20 around the granular body group 20 including the granular body 30. Therefore, even if the granular body 40 is not provided with a covering portion, it is possible to obtain a mass composed of a plurality of used granular body groups 20.

In the granular material 40, since the core portion 42 is exposed, the excrement can reach the core portion 42 immediately. This is advantageous for improving the water absorption rate of the granular material 40 and thus the granular material group 20.

The larger the granular body group 20, the more difficult it is for the granular material 10 to be caught or attached to the animal's paw. On the other hand, if the granule group 20 is too large, it becomes difficult to level the surface of the excrement treatment material 1 (aggregate of a large number of granules 10) laid in the toilet, which hinders the handling of the excrement treatment material 1. It will occur. From this point of view, the number (n) of the granules 10 constituting the granule group 20 is preferably 2 or more and 5 or less. From the same viewpoint, the particle size of the granular material group 20 is preferably 1.5 times or more and 3 times or less the particle size of each of the granular materials 10 constituting the granular material group 20.

The core portion 32 and the core portion 42 are made of materials having substantially the same composition. Thereby, the core material used for forming the core 32 and the core material used for forming the core 42 can be made common. Moreover, the core portion 32 and the core portion 42 have substantially the same shape and size. This makes it possible to standardize the granulation device used for forming the core portion 32 and the granulation device used for forming the core portion 42.

As described above, when the core portion 32 and the core portion 42 are made of materials having substantially the same composition and have substantially the same shape and size, the core portion 32 and the core portion 42 are simultaneously used by the same device. It becomes possible to form. In fact, in this embodiment, the first and second core forming steps are simultaneously executed using the same device. As a result, two types of granules (granular bodies 30, 40) can be efficiently formed.

In the first and second core forming steps, by granulating the core material using a granulating device, a plurality of granulated products to be the cores 32 and 42 are formed. Then, a division step is executed thereafter, and these granulated products are divided into a granulated product group (first group) serving as a core portion 32 and a granulated product group (second group) serving as a core portion 42. It is divided into. It is determined whether each of the granulated products formed in the first and second core portion forming steps becomes the core portion 32 or the core portion 42 only after the division step is executed. Therefore, at the stage of the first and second core portion forming steps, it is not necessary to distinguish between the granulated product that becomes the core portion 32 and the granulated product that becomes the core portion 42. Therefore, in the present embodiment, although two types of granules (granular bodies 30, 40) are formed, one kind of granules is treated as one step for forming the first and second core portions. It can be done as if only the body was formed.

Since the water-absorbent polymer has a property of swelling when it absorbs a liquid, the coating portion 34 containing the absorbent polymer is deformed so as to spread over a wide range when the liquid is absorbed. As a result, the covering portion 34 entrains the surrounding granular group 20 to form a mass composed of the plurality of granular group 20. Therefore, the water-absorbent polymer is particularly suitable as an adhesive material contained in the covering portion 34.

The core portion 32 and the core portion 42 do not contain an adhesive material. As a result, the amount of the adhesive material used can be saved, and the manufacturing cost of the excrement treatment material 1 can be reduced.

When each of the granules 10 uses an organic substance as a main material, the granules 10 suitable for incineration can be obtained. In this case, the used excrement treatment material 1 can be easily disposed of as combustible waste, which improves convenience for the user. When each of the granules 10 is composed of only an organic substance, the granules 10 particularly suitable for incineration can be obtained.

The excrement treatment material 1 is provided with a plurality of granular body groups 20. As a result, it is possible to obtain a highly practical excrement treatment material 1 as compared with the case where only one granular group 20 is provided.

When the number of granules 10 constituting each granular group 20 is different, the granular group 20 having various particle sizes is mixed in the excrement treatment material 1. In this case, when the excrement treatment material 1 is laid in the toilet, the granular group 20 having a relatively small particle size easily enters the gap between the granular group 20 having a relatively large particle size. Therefore, it is possible to spread the plurality of granular body groups 20 in the toilet at a high density.

When each of the granules 10 has a columnar shape, the granulated products (core portions 32, 42) constituting the granules 10 can be formed by extrusion granulation. This is advantageous for forming a large number of granules 10 in a short time.

Each granule 10 has a core portion (core portion 32 or core portion 42) which is a granulated product. Since it is easy to form various materials into granules according to the granulation method, the range of choices of the materials used for the granules 10 can be expanded.

The present invention is not limited to the above embodiment, and various modifications are possible. In the above embodiment, the case where the first and second core forming steps are simultaneously performed using the same device is illustrated. However, the first and second core forming steps may be performed simultaneously using different devices. Further, the first and second core forming steps may be sequentially executed using the same or different devices. In that case, the first core portion forming step may be executed before the second core portion forming step, or the second core portion forming step may be executed before the first core portion forming step. good.

In the above embodiment, the case where the core portion 32 and the core portion 42 are made of materials having substantially the same composition is exemplified. However, the core portion 32 and the core portion 42 may be made of materials having different compositions. Further, in the above embodiment, the case where the core portion 32 and the core portion 42 have substantially the same shape and size is exemplified. However, the core portion 32 and the core portion 42 may be different in shape or size.

In the above embodiment, the case where the core portion 32 does not contain the adhesive material is exemplified. However, the core portion 32 may contain an adhesive material. The same applies to the core portion 42.

In the above embodiment, the case where each of the granules 10 uses an organic substance as a main material has been exemplified. However, each granular material 10 may use an inorganic substance as a main material.

1 Excrement treatment material 10 Granules 20 Granules 30 Granules (first granules)
32 core (first core)
34 Cover 40 Granules (second granules)
42 core (second core)

Claims (24)

An excrement treatment material consisting of a large number of granules that absorb excrement.
A group of granules in which a plurality of pre-use granules contained in the large number of granules are adhered to each other is provided.
The plurality of granules constituting the granule group are
A first granular body having a granular first core portion and a covering portion containing an adhesive material and covering the first core portion.
An excrement treatment material comprising a second granular body having an exposed granular second core portion. In the excrement treatment material according to claim 1,
In the granule group, n granules are adhered to each other.
The n is an excrement treatment material which is an integer of 2 or more and 5 or less. In the excrement treatment material according to claim 1 or 2.
An excrement treatment material having a particle size of the granule group of 1.5 times or more and 3 times or less of the particle size of each of the granules constituting the granule group. In the excrement treatment material according to any one of claims 1 to 3,
The first core portion and the second core portion are excrement treatment materials made of materials having substantially the same composition. In the excrement treatment material according to any one of claims 1 to 4.
The first core portion and the second core portion are excrement treatment materials having substantially the same shape and size. In the excrement treatment material according to any one of claims 1 to 5,
The adhesive material contained in the covering portion is an excrement treatment material which is a water-absorbent polymer. In the excrement treatment material according to any one of claims 1 to 6.
The first and second cores are excrement treatment materials that do not contain an adhesive material. In the excrement treatment material according to any one of claims 1 to 7.
Each of the granules is an excrement treatment material whose main material is an organic substance. In the excrement treatment material according to claim 8,
Each of the granules is an excrement treatment material composed of only the organic matter. In the excrement treatment material according to any one of claims 1 to 9.
An excrement treatment material comprising the plurality of the granule groups. In the excrement treatment material according to claim 10,
The plurality of granular body groups include a first granular body group in which p of the granular materials are bonded to each other and a second granular body group in which q of the granular materials are bonded to each other. Includes
The p and the q are excrement treatment materials which are different integers of 2 or more. A method for producing an excrement treatment material consisting of a large number of granules that absorb excrement.
Each of the granule forming steps for forming a large number of granules, and
A granular group forming step of forming a granular group formed by adhering a plurality of unused granules contained in the large number of granular bodies formed in each granular body forming step to each other is included.
The plurality of granules constituting the granule group are
A first granular body having a granular first core portion and a covering portion containing an adhesive material and covering the first core portion.
A method for producing an excrement treatment material, which comprises a second granular body having an exposed granular second core portion, and a second granular body. In the method for producing an excrement treatment material according to claim 12,
In the granular group forming step, the granular group formed by adhering the n granular bodies to each other is formed.
The method for producing an excrement treatment material, wherein n is an integer of 2 or more and 5 or less. In the method for producing an excrement treatment material according to claim 12 or 13.
In the granular group forming step, the granular group is set so that the particle size of the granular group is 1.5 times or more and 3 times or less the particle size of each of the granular bodies constituting the granular group. A method for producing an excrement treatment material to be formed. In the method for producing an excrement treatment material according to any one of claims 12 to 14.
Each of the granular body forming steps includes a first granular body forming step for forming the first granular body and a second granular body forming step for forming the second granular body.
The first granular body forming step includes a first core portion forming step for forming the first core portion and a covering portion forming step for forming the covering portion.
The second granule forming step is a method for producing an excrement treatment material, which comprises a second core forming step for forming the second core. In the method for producing an excrement treatment material according to claim 15,
The first core forming step and the second core forming step are methods for producing an excrement treatment material, which are simultaneously executed using the same apparatus. In the method for producing an excrement treatment material according to claim 16,
In the first and second core forming steps, excretion that forms a plurality of granulated substances to be the first and second cores by granulating the core material using a granulating device. Manufacturing method of material processing material. In the method for producing an excrement treatment material according to claim 17,
A division step of dividing the plurality of granules into a first group and a second group is included.
In the covering portion forming step, a method for producing an excrement treatment material for forming the covering portion only for the granulated matter divided into the first group. In the method for producing an excrement treatment material according to any one of claims 12 to 18.
The adhesive material contained in the covering portion is a method for producing an excrement treatment material which is a water-absorbent polymer. In the method for producing an excrement treatment material according to any one of claims 12 to 19.
A method for producing an excrement treatment material that does not contain an adhesive material and forms the first and second core portions in each of the granular body forming steps. In the method for producing an excrement treatment material according to any one of claims 12 to 20,
In each of the granule forming steps, a method for producing an excrement treatment material that forms a large number of granules using an organic substance as a main material. In the method for producing an excrement treatment material according to claim 21,
In each of the granule forming steps, a method for producing an excrement treatment material that forms a large number of granules composed of only the organic matter. In the method for producing an excrement treatment material according to any one of claims 12 to 22
In the granular group forming step, a method for producing an excrement treatment material that forms a plurality of the granular group. In the method for producing an excrement treatment material according to claim 23,
The plurality of granular body groups include a first granular body group in which p of the granular materials are bonded to each other and a second granular body group in which q of the granular materials are bonded to each other. Includes
The method for producing an excrement treatment material, wherein p and q are different integers of 2 or more.

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