JP2021090388A - Excrement disposal material and method of manufacturing the same - Google Patents

Abstract

To provide an excrement disposal material capable of easily guiding urine downward, and a method of manufacturing the same.SOLUTION: An excrement disposal material 1 is made of a plurality of granules 10 with water repellency. Each of the granules 10 has a through-hole 12 through which urine passes.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 composed of a plurality of water-repellent granules and is laid in an animal toilet. This animal litter box is divided into an upper space and a lower space by a mesh-like sheet through which urine passes. The water-repellent granules are arranged in the upper space. A liquid absorbing sheet is arranged in the lower space. When the animal urinates, the urine passes through the gaps between the water-repellent granules and reaches the lower space through the mesh-like sheet. The urine that reaches the lower space is absorbed by the liquid absorbing sheet.

Japanese Unexamined Patent Publication No. 2005-110700

However, the water-repellent granules are densely arranged in the upper space of the animal litter box. Therefore, there is a problem that it is not possible to sufficiently secure a gap between the granules, which is a passage for urine, and it is difficult for urine to flow downward. If the urine does not easily flow downward in this way, the urine remains in the upper space, and the foul odor generated from the urine easily leaks out of the animal toilet.

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 easily guides urine downward and a method for producing the same.

The excrement treatment material according to the present invention is an excrement treatment material composed of a plurality of water-repellent granules, and each of the above-mentioned granules has a through hole through which urine passes.

In this excrement treatment material, a plurality of granules having water repellency are provided. Each granule has a through hole through which urine can pass. This allows urine to pass through not only the gaps between the granules but also the through holes of each granule. Therefore, even in a state where a plurality of granules are densely packed, urine easily flows downward.

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 plurality of water-repellent granules, wherein the plurality of granules having through holes through which urine passes are formed. It is characterized by including a step of forming a granular material to be formed.

In this production method, a plurality of water-repellent granules are formed. Each granule has a through hole through which urine can pass. As a result, in the excrement treatment material after production, urine can pass through not only the gaps between the granules but also the through holes of the granules. Therefore, even in a state where a plurality of granules are densely packed, urine easily flows downward.

According to the present invention, an excrement treatment material that easily guides urine downward 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 perspective view which shows the granular body 10. It is sectional drawing along the line III-III of FIG. It is an end view which shows the die 20. It is a top view which shows the die hole 22.

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 an 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 plurality of granules 10. The excrement treatment material 1 may be an excrement treatment material for animals that treats the excrement of animals such as cats and dogs, or an excrement treatment material for humans that treats human excrement. May be good. This excrement treatment material 1 is used, for example, in a two-stage toilet (system toilet) divided into an upper space and a lower space by a partition member having a hole through which urine passes. In that case, the excrement treatment material 1 is used in a state where a plurality of granules 10 are stacked in the upper space (on the partition member) of the system toilet.

Granule 10 has water repellency. That is, the granular material 10 has a property of not absorbing liquid such as urine at all, or even if it absorbs it, it hardly absorbs it. In order for the granular material 10 to have water repellency, it is necessary that the water repellency measured by the next test is 80% or more. First, a plurality of granules 10 (samples) equivalent to 50 g are put into a tea strainer. An empty beaker will be installed under the tea strainer. Then, 30 ml of water is added dropwise to the sample over 10 seconds using a syringe without a needle. After leaving it for 1 minute, measure the amount of water in the beaker. The ratio of the measured amount of water to the amount of dropped water (30 ml) is defined as the water repellency. That is, when the amount of water in the beaker is 24 ml or more, the water repellency is 80% or more, so that it can be said that the granular material 10 has water repellency. As a reference, the water repellency of general water-absorbent cat sand on the market is about 5%.

FIG. 2 is a perspective view showing the granular body 10. Further, FIG. 3 is a cross-sectional view taken along the line III-III of FIG. The granular body 10 is formed into granules and has through holes 12. The through hole 12 allows urine to pass through. In each of the granules 10, the through holes 12 extend in a straight line. That is, the through hole 12 has a linear central axis. In the present embodiment, the through hole 12 is composed of a columnar space. Further, the granular body 10 has a shape in which a through hole 12 is provided in a cylinder. The through hole 12 penetrates the granular body 10 in the height direction (left-right direction of FIGS. 2 and 3). Therefore, the granular body 10 has a cylindrical shape as a whole. The inner diameter (diameter of the through hole 12) d1 of each granular body 10 is preferably 50% or more, more preferably 70% or more of the outer diameter d2 of the granular body 10. 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.

It is preferable that each of the granules 10 uses an organic substance as a main material. Here, the main material refers to one or more materials constituting the granular material 10 having the largest weight ratio in the granular material 10. As the organic matter, for example, papers, tea leaves, plastics or okara can be used.

Paper refers to a material mainly composed of pulp. Examples of papers include, in addition to ordinary paper, vinyl chloride wallpaper grade paper, photographic paper, release paper, fluff pulp, papermaking sludge, pulp sludge, and the like. The vinyl chloride wallpaper classified product is obtained by removing a part of polyvinyl chloride from paper and vinyl chloride wallpaper containing polyvinyl chloride. Examples of plastics include, in addition to ordinary plastics, aluminum-deposited films, paper diaper graders (plastics obtained by classifying paper diapers), and the like. The okara is preferably dried okara. These materials may be water repellent.

The material constituting each of the granules 10 may be only one or two or more. In the former case, the material constituting the granular material 10 is only the above-mentioned main material. In the latter case, the granular material 10 will be composed of a mixture of the main material and other materials. Other materials include, for example, gypsum. The content (weight ratio) of gypsum is, for example, 5% or more and 15% or less with respect to the whole of the granular material 10.

Each of the granules 10 may consist substantially only of the PVC wallpaper grade. The phrase "consisting substantially only of the PVC wallpaper classified product" means that other materials such as pigments and fragrances may be added to the granular material 10 as long as the water repellency of the granular material 10 is not hindered. Even in that case, the weight ratio of the other material to the granular material 10 is preferably 1% or less (that is, the weight ratio of the PVC wallpaper grade product is 99% or more).

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 a granular material forming step.

The granular body forming step is a step of forming the granular material 10. In this step, a plurality of granulated products to be granulated bodies 10 are formed by granulating the granulated material (material constituting the granulated body 10) using a granulating device. As the granulator, for example, an extrusion granulator can be used. Prior to granulation, the granulated material is subjected to pretreatment such as pulverization, kneading, and water addition as necessary.

The through hole 12 may be formed after the granulation material is granulated, or may be formed at the same time as the granulation material is granulated. In the former case, for example, a through hole 12 can be formed by piercing a granulated columnar granulated product with a round bar along its central axis. In the latter case, for example, the through hole 12 can be formed by extruding the granulation material using the die 20 shown in FIG. 4.

FIG. 4 is an end view showing the die 20. The die 20 is provided with a plurality of die holes 22 through which the material to be granulated passes. However, in the figure, only one die hole 22 is shown. FIG. 5 is a plan view showing the die hole 22. The die hole 22 has a circular shape in a plan view. A core material 24 is provided inside the die hole 22. The core material 24 is provided at a position separated from the inner surface of the die hole 22. The core material 24 has a round bar shape (cylindrical shape) and extends along the central axis of the die hole 22. The central axis of the core material 24 coincides with the central axis of the die hole 22.

The core material 24 is fixed to the die hole 22 via the connecting member 26. The connecting member 26 extends from the core material 24 to the inner surface of the die hole 22 along the radial direction of the die hole 22. That is, one end of the connecting member 26 is connected to the side surface of the core member 24, and the other end of the connecting member 26 is connected to the inner surface of the die hole 22. The width w1 of the connecting member 26 is smaller than the diameter of the core member 24. The width w1 of the connecting member 26 is preferably as small as possible so as to support the core material 24 during granulation.

As can be seen from FIG. 4, the core material 24 is provided only in a part of the die holes 22 in the thickness direction of the die 20 (vertical direction in the figure). The core material 24 reaches the opening surface on the outlet side of the die hole 22, but does not reach the opening surface on the inlet side of the die hole 22. Further, the connecting member 26 is located closer to the upper end than the lower end of the core member 24. The thickness t1 of the connecting member 26 is smaller than the length of the core member 24. The thickness t1 of the connecting member 26 is also preferably as small as possible so as to support the core material 24 during granulation. As the material of the core material 24 and the connecting member 26, for example, metal or plastic can be used.

When the material to be granulated is extruded and granulated using the die 20, the material to be granulated can pass only the portion inside the die hole 22 where the core material 24 is not provided. Therefore, the granulated material extruded from the die hole 22 is formed with a hole extending on the extension line of the core material 24. By cutting the granulated material to an appropriate length, a granulated product (granular body 10) having through holes 12 can be obtained. The granulated material cannot pass through the portion where the connecting member 26 is provided, but since the width w1 and the thickness t1 of the connecting member 26 are sufficiently small, the shape of the granulated material extruded from the die hole 22 is substantially the same. Does not affect the situation.

The granular material 10 in which the through holes 12 are formed may be subjected to a water repellent treatment, if necessary. The water repellent treatment can be performed, for example, by coating the surface of the granular material 10 with a water repellent agent. When the water repellent treatment is not performed, it is preferable to increase the pressure applied to the material to be granulated during granulation so that gaps are not generated on the surface or inside of the granulated product as much as possible. This is because such a gap serves as a route for water such as urine to enter the inside of the granular material 10.

The effect of this embodiment will be described. In this embodiment, a plurality of water-repellent granules 10 are formed. Each granule 10 has a through hole 12 through which urine passes. As a result, in the excrement treatment material 1, urine can pass through not only the gaps between the granules 10 but also the through holes 12 of the granules 10. Therefore, even in a state where the plurality of granules 10 are densely packed, urine easily flows downward. Therefore, the excrement treatment material 1 that easily guides urine downward and the method for producing the same have been realized.

In each of the granules 10, the through holes 12 extend in a straight line. In this case, urine can pass smoothly through the through hole 12 as compared with the case where the through hole 12 meanders or is bent in the middle.

The through hole 12 is composed of a columnar space. In this case, since there are no corners on the side surface of the through hole 12 (inner surface of the granular body 10), urine can smoothly pass through the through hole 12.

Each of the granules 10 has a shape in which a through hole 12 is provided in a cylinder. When the outer diameter of the granule 10 is a cylinder as described above, the granulated product to be the granule 10 can be formed by extrusion granulation. Thereby, a large number of granulated products can be formed in a short time.

Each granular body 10 has a cylindrical shape. In this case, the through hole 12 can be formed at the same time as the granulation of the material to be granulated by the extrusion granulation using the die 20 described above. As a result, the granular body 10 having the through holes 12 can be efficiently formed.

By increasing the diameter of the through hole 12, urine can easily pass through the through hole 12. From this point of view, the diameter d1 of the through hole 12 is preferably 50% or more, more preferably 70% or more of the outer diameter d2 of the granular material 10. On the other hand, if the diameter d1 is made too large, the strength of the granular material 10 may be insufficient. From this point of view, the diameter d1 is preferably 90% or less of the outer diameter d2.

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 discarded as combustible waste, which improves convenience for the user.

When each of the granules 10 is substantially composed of only the PVC wallpaper classified product, gaps are less likely to occur on the surface or inside of the granular material 10 as compared with the case where other materials are mixed with the PVC wallpaper graded product. If the gap is small, it becomes difficult for water to penetrate into the granular material 10, so that the water repellency of the granular material 10 can be increased. Therefore, the granular body 10 having water repellency can be easily realized without performing the water repellent treatment.

When each of the granules 10 contains gypsum, the water repellency of the granules 10 can be increased. Therefore, the granular body 10 having water repellency can be easily realized without performing the water repellent treatment.

The present invention is not limited to the above embodiment, and various modifications are possible. In the above embodiment, the case where the through hole 12 is composed of a columnar space is illustrated. However, the spatial shape of the through hole 12 is arbitrary as long as urine can pass through. For example, the through hole 12 may consist of a prismatic or tapered space.

In the above embodiment, the case where the granular body 10 has a cylindrical shape is illustrated. However, the shape of the granular body 10 is arbitrary as long as it is a granular body provided with the through holes 12. For example, the granular body 10 may have a shape in which a through hole 12 is provided in a prism, a sphere, or an ellipsoid.

1 Excrement treatment material 10 Granules 12 Through holes 20 Dice 22 Die holes 24 Core material 26 Connecting member

Claims (20)

An excrement treatment material composed of a plurality of water-repellent granules.
An excrement treatment material, wherein each of the granules has a through hole through which urine passes. In the excrement treatment material according to claim 1,
In each of the granules, the through hole is an excrement treatment material extending in a straight line. In the excrement treatment material according to claim 2,
The through hole is an excrement treatment material composed of a columnar space. In the excrement treatment material according to any one of claims 1 to 3,
Each of the granules is an excrement treatment material having a shape in which the through hole is provided in a cylinder. In the excrement treatment material according to claim 4,
Each of the granules is a cylindrical excrement treatment material. In the excrement treatment material according to claim 5,
An excrement treatment material in which the inner diameter of each of the granules is 50% or more of the outer diameter of the granules. In the excrement treatment material according to claim 6,
An excrement treatment material in which the inner diameter of each of the granules is 70% or more of the outer diameter of the granules. 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 consisting substantially only of a PVC wallpaper grade product. In the excrement treatment material according to claim 8,
Each of the granules is an excrement treatment material containing gypsum. A method for producing an excrement treatment material composed of a plurality of water-repellent granules.
A method for producing an excrement treatment material, which comprises a granule forming step of forming the plurality of granules having through holes through which urine passes. In the method for producing an excrement treatment material according to claim 11,
In the granule forming step, a method for producing an excrement treatment material that forms the plurality of granules so that the through holes extend in a straight line in each of the granules. In the method for producing an excrement treatment material according to claim 12,
In the granular body forming step, a method for producing an excrement treatment material for forming the plurality of granular bodies having the through holes composed of a columnar space. In the method for producing an excrement treatment material according to any one of claims 11 to 13.
In the granular body forming step, a method for producing an excrement treatment material for forming the plurality of granular bodies having a shape in which the through holes are provided in a cylinder. In the method for producing an excrement treatment material according to claim 14,
In the granule forming step, a method for producing an excrement treatment material that forms the plurality of cylindrical granules. In the method for producing an excrement treatment material according to claim 15,
In the granule forming step, a method for producing an excrement treatment material that forms a plurality of granules so that the inner diameter of each of the granules is 50% or more of the outer diameter of the granules. In the method for producing an excrement treatment material according to claim 16,
In the granule forming step, a method for producing an excrement treatment material that forms a plurality of granules so that the inner diameter of each of the granules is 70% or more of the outer diameter of the granules. In the method for producing an excrement treatment material according to any one of claims 11 to 17.
In the granule forming step, a method for producing an excrement treatment material that forms the plurality of granules using an organic substance as a main material. In the method for producing an excrement treatment material according to claim 18,
In the granule forming step, a method for producing an excrement treatment material that forms the plurality of granules, which is substantially composed of only a PVC wallpaper classified product. In the method for producing an excrement treatment material according to claim 18,
In the granule forming step, a method for producing an excrement treatment material that forms the plurality of granules containing gypsum.

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