Excreta-treating material and method for producing the same

Abstract

To provide an excreta-treating material in which urine is less likely to remain on the surface of granules; and a method for producing the same.SOLUTION: An excreta-treating material 1 comprises a large number of hydrophobic granules 10. The excreta-treating material 1 has granule groups 20. The granule groups 20 are formed by mutual adhesion of multiple pre-use granules 10 included in the large number of granules 10. The multiple granules 10 forming the granule groups 20 include granules 30 and granules 40. The granules 40 have lower hydrophobicity than the granules 30.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an excrement treating material and a method for producing the same. [Background technology]

[0002] An example of a conventional excrement treatment material is that described in Patent Document 1. The excrement treatment material described in this document is made of a plurality of hydrophobic (water-repellent) granules, and is laid in an animal litter box. This litter box is divided into an upper space and a lower space by a mesh-like sheet that allows urine to pass through. The hydrophobic granules are disposed in the upper space. A liquid-absorbent sheet is disposed in the lower space. When an animal urinates, the urine passes through the gaps between the hydrophobic granules and reaches the lower space through the mesh-like sheet. The urine that reaches the lower space is absorbed by the liquid-absorbent sheet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-110700 A Summary of the Invention [Problem to be solved by the invention]

[0004] In this way, the hydrophobic granules guide the urine downwards in the toilet, thereby preventing the bad odor from the urine from leaking out of the toilet. However, when urine adheres to the hydrophobic granules, the urine tends to remain on the surface of the granules, which is a problem. The urine remaining on the surface of the granules causes the bad odor from the urine to leak out of the toilet.

[0005] The present invention has been made in view of the above problems, and has an object to provide an excrement treating material in which urine is less likely to remain on the surface of the granular material, and a method for producing the same. [Means for solving the problem]

[0006] The excrement treatment material according to the present invention is an excrement treatment material comprising a number of hydrophobic granular bodies, and is characterized in that it comprises a granular body group in which a number of unused granular bodies contained in the number of granular bodies are adhered to each other, and the number of granular bodies constituting the granular body group includes a first granular body and a second granular body having a hydrophobicity lower than that of the first granular body.

[0007] This excrement treatment material is provided with first and second granular bodies. The hydrophobicity of the second granular bodies is smaller than that of the first granular bodies. By reducing the hydrophobicity of the second granular bodies in this manner, urine is not only less likely to remain on the surfaces of the second granular bodies, but also on the surfaces of the first granular bodies. This is because urine adhering to the surfaces of the first granular bodies is taken into the second granular bodies surrounding the first granular bodies.

[0008] Furthermore, the manufacturing method of excrement treatment material according to the present invention is a method for manufacturing excrement treatment material consisting of a large number of granular bodies having hydrophobicity, and includes each granular body forming step of forming the large number of granular bodies, and a granular body group forming step of forming a granular body group in which a plurality of pre-used granular bodies contained in the large number of granular bodies formed in each granular body forming step are adhered to each other, each of the granular body forming steps includes a first granular body forming step of forming a first granular body, and a second granular body forming step of forming a second granular body having a hydrophobicity rate lower than that of the first granular body, and the granular body group forming step is characterized in that the granular body group is formed so that the plurality of granular bodies constituting the granular body group includes the first and second granular bodies.

[0009] In this manufacturing method, first and second granular bodies are formed. The hydrophobicity of the second granular bodies is smaller than that of the first granular bodies. By reducing the hydrophobicity of the second granular bodies in this manner, urine is not only less likely to remain on the surface of the second granular bodies in the manufactured excrement treatment material, but also on the surface of the first granular bodies. This is because urine adhering to the surface of the first granular bodies is taken up into the second granular bodies surrounding the first granular bodies. Effect of the Invention

[0010] According to the present invention, an excrement treating material in which urine is less likely to remain on the surface of a granular material, and a method for producing the same are realized. [Brief description of the drawings]

[0011] [Figure 1] 1 is a schematic diagram showing an embodiment of an excrement treating material according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals and duplicated description will be omitted.

[0013] FIG. 1 is a schematic diagram showing one embodiment of an excrement treatment material according to the present invention. The excrement treatment material 1 is used to treat excrement (mainly urine). The excrement treatment material 1 may be an animal excrement treatment material used to treat excrement from animals such as cats and dogs, or may be a human excrement treatment material used to treat excrement from humans. The excrement treatment material 1 is made up of a large number of granular bodies 10 for treating excrement. Here, "a large number" means a number of 10 or more. In the following description, "a large number of granular bodies 10" refers to all the granular bodies 10 constituting the excrement treatment material 1 unless otherwise specified. The excrement treatment material 1 is used, for example, in a system toilet having a box-shaped main body that receives excreted urine and a partition that divides the internal space of the main body into an upper space and a lower space. The partition has a through hole that allows urine to pass through. In this case, the excrement treatment material 1 is used in a state in which a large number of granular bodies 10 are directly laid on the partition.

[0014] Each granular body 10 is hydrophobic. That is, the granular body 10 has a property of not absorbing any liquid such as urine, or of absorbing very little if any. For the granular body 10 to be said to be hydrophobic, it is necessary that the hydrophobicity measured by the following test is 60% or more. First, 50 g of the granular body 10 (sample) is placed on a sieve with an inner diameter of 10 cm and an opening of 1 mm. An empty beaker is placed under the sieve. Then, 30 ml of water is dripped onto the sample over 10 seconds using a syringe (Terumo 60 ml syringe) with an outer cylinder inner diameter of 3 cm and a tip inner diameter of 4 mm. After leaving it for 1 minute, the amount of water in the beaker is measured. The hydrophobicity is determined as the ratio of the measured amount of water to the amount of dripped water (30 ml). That is, if the amount of water in the beaker is 18 ml or more, the hydrophobicity is 60% or more, and the granular body 10 can be said to be hydrophobic.

[0015] Each granular body 10 is granular. Examples of the granular shape include a sphere, a cylinder, and an ellipsoid. Each granular body 10 is made of an uncoated granulated material. The particle diameter of each granular body 10 is, for example, 5 mm or more and 30 mm or less. Here, the particle diameter of the granular body 10 is defined as the diameter of the smallest sphere that can contain the granular body 10. Each granular body 10 is mainly made of an organic material. Here, the main material of the granular body 10 refers to the material that has the largest weight ratio in the granular body 10 among one or more materials that constitute the granular body 10. Examples of such organic materials include paper, plants, plastics, and organic sludge. Each granular body 10 may be made of only organic matter, or may be made of organic and inorganic matter.

[0016] Papers refer to materials mainly composed of pulp. Examples of papers that can be used include ordinary paper (paper powder), photographic paper, release paper, fluff pulp, paper derived from PVC wallpaper (paper generated during the manufacture or classification of PVC wallpaper), paper derived from gypsum board (paper generated during the manufacture or classification of gypsum board), or paper derived from sanitary products (paper generated during the manufacture or classification of sanitary products containing paper). Examples of sanitary products containing paper include disposable diapers, sanitary napkins, urine pads, and sanitary paper (tissue paper, toilet paper, paper towels, etc.). Examples of plants that can be used include wood powder, sawdust, or plant residues (tea leaves, soybean curd refuse, etc.). Examples of plastics that can be used include ordinary plastics, aluminum vapor deposition films, plastics derived from PVC wallpaper (plastics generated during the manufacture or classification of PVC wallpaper), and plastics derived from sanitary products (plastics generated during the manufacture or classification of sanitary products containing plastic). Examples of sanitary products containing plastic include disposable diapers, sanitary napkins, urine pads, and sanitary masks. Examples of organic sludges include paper sludge and pulp sludge. These materials may or may not be subjected to hydrophobic treatment (water repellent treatment).

[0017] The granular body 10 may be made of only one material, or may be made of two or more materials. In the former case, the material making up the granular body 10 is only the main material described above. In the latter case, the granular body 10 is made of a mixture of the main material and other materials. Examples of the other materials include gypsum or baking soda. Adding gypsum or baking soda makes it easier to impart hydrophobicity to the granular body 10. The amount of gypsum or baking soda is, for example, 5% by weight or more and less than 50% by weight of the entire granular body 10.

[0018] Each granule 10 may or may not contain an adhesive material. Examples of the adhesive material include water-absorbent polymers, starch, CMC (carboxymethyl cellulose), PVA (polyvinyl alcohol), and dextrin. Examples of the water-absorbent polymers that can be used include acrylic water-absorbent polymers such as sodium polyacrylate.

[0019] The excrement treatment material 1 includes a granular material group 20. The granular material group 20 is composed of a plurality of granular materials 10 included in the large number of granular materials 10 described above. Specifically, the granular material group 20 is formed by a plurality of granular materials 10 before use, which are bonded to each other. In the following description, unless otherwise specified, "a plurality of granular materials 10" refers to all of the granular materials 10 constituting each granular material group 20. It is preferable that the granular material group 20 is formed by n pieces (n is an integer of 2 to 5) of granular materials 10 bonded to each other. In addition, it is preferable that the particle size of the granular material group 20 is 1.5 to 3 times the particle size of each of the granular materials 10 constituting the granular material group 20. Here, the particle size of the granular material group 20 is defined as the diameter of the smallest sphere that can contain the granular material group 20.

[0020] The excrement treatment material 1 includes a plurality of granular body groups 20. The number of granular bodies 10 constituting each granular body group 20 may be equal to or different from each other. In the latter case, the plurality of granular body groups 20 includes a first granular body group consisting of p granular bodies 10 (p is an integer of 2 or more) adhered to each other, and a second granular body group consisting of q granular bodies 10 (q is an integer of 2 or more different from p) adhered to each other. 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 granular bodies 10 exist alone without adhering to other granular bodies 10. In this way, in the excrement treatment material 1, all or a part of the granular bodies 10 constituting the excrement treatment material 1 are adhered to other granular bodies 10 to form the granular body group 20 before use (before receiving excrement).

[0021] The multiple 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. The granular body 40 has a smaller hydrophobicity than the granular body 30. When the hydrophobicity of the granular body 30 is A% and the hydrophobicity of the granular body 40 is B%, it is preferable that (AB)≧10, and more preferably (AB)≧20. However, (AB)≦40. The hydrophobicity of the granular body 30 is, for example, 80% or more and 100% or less. The hydrophobicity of the granular body 40 is, for example, 60% or more and 80% or less.

[0022] A plurality of each of the granular bodies 30 and the granular bodies 40 are provided. In the excrement treating material 1, these granular bodies 30, 40 are mixed. The number of the granular bodies 40 is preferably 30% to 70% of the total number of the granular bodies 30 and the granular bodies 40, and more preferably 40% to 60%. The particle size of the granular bodies 40 may be equal to or different from the particle size of the granular bodies 30. Furthermore, the granular bodies 40 may be made of a material having the same composition as the granular bodies 30, or may be made of a material having a different composition from the granular bodies 30. The plurality of granular bodies 10 may include only the granular bodies 30 and the granular bodies 40, or may include granular bodies other than the granular bodies 30 or the granular bodies 40.

[0023] Next, an example of a method for manufacturing the excrement treating material 1 will be described as an embodiment of the method for manufacturing the excrement treating material according to the present invention. This manufacturing method includes each granule forming step and a granule group forming step. Each granule forming step is a step for forming a large number of granules 10. Each granule forming step includes a first granule forming step and a second granule forming step.

[0024] The first granular body forming step is a step of forming the granular body 30. In this step, a granulation device is used to granulate the first granulated material (material constituting the granular body 30) to form a plurality of granulated bodies that become the granular body 30. As the granulation device, for example, an extrusion granulator can be used. The granulated body may be subjected to hydrophobic treatment as necessary. The hydrophobic treatment can be performed, for example, by coating the surface of the granulated body with a hydrophobic agent (water repellent agent). Prior to granulation, the first granulated material is subjected to pretreatment such as pulverization, kneading, and addition of water as necessary. After granulation, posttreatment such as sieving (sizing) and drying is performed as necessary. As a result, a plurality of granular bodies 30 are obtained.

[0025] The second granular body forming step is a step of forming the granular body 40. In this step, a granulating device is used to granulate the second granulated material (material constituting the granular body 40) to form a plurality of granulated products that will become the granular body 40. The granulated products may be subjected to a hydrophobic treatment as necessary. Prior to granulation, the second granulated material is subjected to pretreatment such as pulverization, kneading, and addition of water as necessary. After granulation, post-treatment such as sieving (sizing) and drying is performed as necessary. As a result, a plurality of granular bodies 40 are obtained.

[0026] In the second granular body forming step, the granular body 40 is formed so that the hydrophobicity of the granular body 40 is smaller than that of the granular body 30. For example, by using a material having a lower hydrophobicity (water repellency) than the first granular material as the second granular material, the hydrophobicity of the granular body 40 can be made smaller than that of the granular body 30. When a material that enhances hydrophobicity (for example, gypsum or baking soda) is used, the hydrophobicity of the granular body 40 can be made smaller than that of the granular body 30 by making the content of the material different between the granular body 30 and the granular body 40. Specifically, the weight ratio of the above material in the granular body 40 may be made smaller than the weight ratio of the above material in the granular body 30.

[0027] In addition, the hydrophobicity of the granular material 40 can be made smaller than that of the granular material 30 by making the pressure applied to the second granular material smaller than that applied to the first granular material smaller than that of the granular material 30. This is because if the pressure during granulation is reduced, the gaps on the surface and inside of the granular material become larger, making it easier for moisture to penetrate into the granular material. The pressure during granulation can be adjusted, for example, by changing the thickness of the die of the granulation device. In other words, the smaller the thickness of the die, the smaller the pressure during granulation.

[0028] The order in which the first and second granular body forming steps are performed is arbitrary, that is, both steps may be performed simultaneously in parallel, or one step may be performed before the other step.

[0029] The granular body group forming step is a step of forming the granular body group 20. In this step, the granular body group 20 is formed by mutually adhering the plurality of granular bodies 10 (granular bodies 30, 40) formed in each granular body forming step. At this time, at least one granular body 30 and one granular body 40 are included in each granular body group 20. For example, an adhesive material can be used to adhere the granular bodies 10 to each other. As the adhesive material for adhering the granular bodies 10 to each other, an adhesive material contained in each granular body 10 may be used, or a separately prepared adhesive material (an adhesive material not contained in each granular body 10) may be used. In the former case, for example, the surface of each granular body 10 is appropriately wetted by adding water to the surface of the granular body 10, and the plurality of granular bodies 10 are pressed against each other to adhere the granular bodies 10 to each other. In this embodiment, a plurality of granular body groups 20 are formed. In this manner, the excrement treating material 1 having the granular material mass 20 is obtained.

[0030] The effect of this embodiment will be described. In this embodiment, granular bodies 30 and 40 are formed. The hydrophobicity of the granular bodies 40 is smaller than that of the granular bodies 30. By reducing the hydrophobicity of the granular bodies 40 in this manner, urine is not only less likely to remain on the surface of the granular bodies 40 in the excrement treatment material 1, but also on the surface of the granular bodies 30. This is because urine adhering to the surface of the granular bodies 30 is taken into the interior of the granular bodies 40 around the granular bodies 30. Therefore, an excrement treatment material 1 in which urine is less likely to remain on the surface of the granular bodies 10, and a manufacturing method thereof, have been realized.

[0031] Furthermore, a plurality of granular materials 10 before use are adhered to one another to form a granular material group 20. Naturally, the particle size and mass of the granular material group 20 are greater than those of the individual granular materials 10 that constitute the granular material group 20. Therefore, in the excrement treatment material 1, the granular materials 10 are less likely to get caught in or adhere to the feet of an animal, compared to when the plurality of granular materials 10 are separated from one another.

[0032] Furthermore, the multiple granules 10 constituting the granule group 20 include granules 30 and granules 40. When the granules 30 and 40 constitute one granule group 20 in this manner, it is easier to bring the granules 40 close to the granules 30 compared to when the granules 30 and 40 are separated from each other. This makes it easier for urine adhering to the surface of the granules 30 to be taken into the granules 40.

[0033] The larger the granular material group 20, the less likely the granular material 10 will get caught or adhere to the feet of an animal. On the other hand, if the granular material group 20 is too large, it becomes difficult to level the surface of the excrement treatment material 1 (an aggregate of many granular materials 10) laid in a toilet, which can cause problems in handling the excrement treatment material 1. From this perspective, it is preferable that the number (n) of granular materials 10 constituting the granular material group 20 is 2 or more and 5 or less. From the same perspective, it is preferable that the particle size of the granular material group 20 is 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.

[0034] The excrement treating material 1 is provided with a plurality of granular material groups 20. This makes it possible to obtain an excrement treating material 1 that is more practical than a material having only one granular material group 20.

[0035] When the numbers of granules 10 constituting each granule group 20 are different, granule groups 20 of various particle sizes are mixed in the excrement treatment material 1. In this case, when the excrement treatment material 1 is laid in a toilet, granule groups 20 with relatively small particle sizes tend to get into the gaps between granule groups 20 with relatively large particle sizes. This makes it possible to lay multiple granule groups 20 densely in the toilet.

[0036] Both the granular materials 30 and 40 are hydrophobic. By using hydrophobic granular materials for both the granular materials 30 and 40 in this way, the water permeability (ability to guide urine downward in the toilet) of the excrement treatment material 1 as a whole can be increased compared to a case in which non-hydrophobic (water-absorbent) granular materials are used for either the granular materials 30 or 40.

[0037] The smaller the hydrophobicity (B%) of the granules 40, the less likely urine will remain on the surfaces of the granules 30 and 40. On the other hand, the larger the hydrophobicity (A%) of the granules 30, the more likely it is that the water permeability of the entire excrement treatment material 1 will be increased. From this viewpoint, it is preferable that (AB) ≧ 10, and it is more preferable that (AB) ≧ 20.

[0038] To prevent urine from remaining on the surfaces of the granular bodies 30 and 40, it is advantageous for the proportion of the granular bodies 40 to be large in the entire excrement treatment material 1. From this viewpoint, the number of the granular bodies 40 is preferably 30% or more, and more preferably 40% or more, of the total number of the granular bodies 30 and 40. On the other hand, if the proportion of the granular bodies 40 is too large, the water permeability of the entire excrement treatment material 1 may be insufficient. From this viewpoint, the number of the granular bodies 40 is preferably 70% or less, and more preferably 60% or less, of the total number of the granular bodies 30 and 40.

[0039] When the particle size of the granules 30 and the particle size of the granules 40 are equal to each other, it is possible to use the same device for the first and second granule formation steps, which contributes to reducing the manufacturing cost of the excrement treating material 1.

[0040] When the granules 30 and 40 are made of materials with the same composition, the material of the granules 30 (first granulation material) and the material of the granules 40 (second granulation material) can be the same. This also contributes to reducing the manufacturing cost of the excrement treating material 1.

[0041] When the granules 30 and 40 are made of materials with different compositions, it is possible to use a material with relatively high hydrophobicity as the first granulation material and a material with relatively low hydrophobicity as the second granulation material, which makes it easy to realize the granules 30 and 40 having different hydrophobicity rates.

[0042] Each granule 10 is made of uncoated granulated material. This eliminates the need for a coating material (a material used to coat the granulated material) and a coating process (a process of coating the granulated material with a coating material), thereby reducing the manufacturing cost of the excrement treating material 1.

[0043] Each granular body 10 is mainly made of organic matter. In this case, it is possible to obtain granular bodies 10 suitable for incineration. This contributes to the convenience of disposing of used excrement treatment materials 1. In particular, when each granular body 10 is made of only organic matter, it is possible to obtain granular bodies 10 that are more suitable for incineration.

[0044] The present invention is not limited to the above embodiment, and various modifications are possible. In the above embodiment, the case where each granular body 10 is made of an uncoated granulated material is exemplified. However, each granular body 10 may be made of a granulated material whose surface is entirely or partially coated.

[0045] In the above embodiment, the case where each of the granules 10 is mainly made of an organic material has been exemplified. However, each of the granules 10 may be mainly made of an inorganic material. [Explanation of symbols]

[0046] 1. Waste treatment materials 10 Granules 20 Granule group 30 Granular body (first granular body) 40 Granular body (second granular body)

Claims

1. An excrement treatment material comprising a large number of hydrophobic granular bodies, a granular body group in which a plurality of granular bodies before use are adhered to each other, An excrement treatment material, characterized in that the plurality of granular bodies constituting the granular body group include first granular bodies and second granular bodies having a hydrophobicity lower than that of the first granular bodies.

2. The excrement treating material according to claim 1, When the hydrophobicity of the first granular body is A%, and the hydrophobicity of the second granular body is B%, An excrement treating material in which (A-B) is ≧10.

3. The excrement treating material according to claim 2, An excrement treating material in which (A-B) is ≧20.

4. The excrement treating material according to any one of claims 1 to 3, The granular material group is formed by n pieces of the granular material being adhered to each other, The above-mentioned n is an integer of 2 or more and 5 or less.

5. The excrement treating material according to any one of claims 1 to 3, The particle size of the granular mass is between 1.5 and 3 times the particle size of each of the granular masses constituting the granular mass.

6. The excrement treating material according to any one of claims 1 to 3, The particle size of the second granular material is equal to the particle size of the first granular material.

7. The excrement treating material according to any one of claims 1 to 3, The second granular material is an excrement treating material made of a material having the same composition as that of the first granular material.

8. The excrement treating material according to any one of claims 1 to 3, The second granular material is an excrement treating material made of a material having a different composition from that of the first granular material.

9. The excrement treating material according to any one of claims 1 to 3, The excrement treating material is made of uncoated granulated material.

10. The excrement treating material according to any one of claims 1 to 3, Each of the granular bodies is an excrement treatment material whose main component is organic matter.

11. The excrement treating material according to claim 10, Each of the granular bodies is an excrement treating material consisting only of organic matter.

12. The excrement treating material according to any one of claims 1 to 3, An excrement treating material comprising a plurality of said granular material groups.

13. The excrement treating material according to claim 12, the plurality of granular material groups include a first granular material group having p granular materials adhered to one another, and a second granular material group having q granular materials adhered to one another, The excrement treating material, wherein p and q are different integers of 2 or more.

14. A method for producing an excrement treating material comprising a large number of hydrophobic granular bodies, comprising the steps of: each granule forming step of forming the plurality of granules; a granular body group forming step of forming a granular body group in which a plurality of granular bodies before use contained in the large number of granular bodies formed in each of the granular body forming steps are adhered to each other, Each of the granular body forming steps includes a first granular body forming step of forming a first granular body, and a second granular body forming step of forming a second granular body having a hydrophobicity rate smaller than that of the first granular body, A method for manufacturing excrement treatment material, characterized in that in the granular material group forming step, the granular material group is formed so that the plurality of granular materials constituting the granular material group include the first and second granular materials.

15. The method for producing an excrement treating material according to claim 14, A method for manufacturing an excrement treatment material, in which in the second granular body formation process, when the hydrophobicity of the first granular body is A% and the hydrophobicity of the second granular body is B%, the second granular body is formed so that (A-B)≧10.

16. The method for producing an excrement treating material according to claim 15, In the second granular material forming step, the second granular material is formed so that (A-B)≧20.

17. The method for producing an excrement treating material according to any one of claims 14 to 16, In the granular material group forming step, the granular material group is formed by n pieces of the granular material being adhered to each other, The method for producing an excrement treating material, wherein n is an integer of 2 or more and 5 or less.

18. The method for producing an excrement treating material according to any one of claims 14 to 16, A method for manufacturing an excrement treatment material, in which the granular material group forming step forms the granular material group so that the particle size of the granular material group is 1.5 to 3 times the particle size of each of the granular materials constituting the granular material group.

19. The method for producing an excrement treating material according to any one of claims 14 to 16, In the second granular material forming step, the second granular material is formed so that the particle size of the second granular material is equal to the particle size of the first granular material.

20. The method for producing an excrement treating material according to any one of claims 14 to 16, In the second granular body forming step, the second granular body is formed from a material having the same composition as that of the first granular body.

21. The method for producing an excrement treating material according to any one of claims 14 to 16, In the second granular body forming step, the second granular body is formed from a material having a composition different from that of the first granular body.

22. The method for producing an excrement treating material according to any one of claims 14 to 16, In each of the granule forming steps, a large number of granules made of uncoated granules are formed.

23. The method for producing an excrement treating material according to any one of claims 14 to 16, In each of the granule forming steps, a large number of granules made mainly of organic matter are formed.

24. The method for producing an excrement treating material according to claim 23, In each of the granule forming steps, the numerous granules consisting of only organic matter are formed.

25. The method for producing an excrement treating material according to any one of claims 14 to 16, In the granule group forming step, a plurality of granule groups are formed.

26. The method for producing an excrement treating material according to claim 25, the plurality of granular material groups include a first granular material group having p granular materials adhered to one another, and a second granular material group having q granular materials adhered to one another, The method for producing an excrement treating material, wherein p and q are different integers of 2 or more.

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