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WO2023238567A1 - Excrement treatment material and method for producing same - Google Patents

Excrement treatment material and method for producing same Download PDF

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Publication number
WO2023238567A1
WO2023238567A1 PCT/JP2023/017263 JP2023017263W WO2023238567A1 WO 2023238567 A1 WO2023238567 A1 WO 2023238567A1 JP 2023017263 W JP2023017263 W JP 2023017263W WO 2023238567 A1 WO2023238567 A1 WO 2023238567A1
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Prior art keywords
excrement
granules
producing
water
excrement disposal
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PCT/JP2023/017263
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French (fr)
Japanese (ja)
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隼士 吉永
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株式会社大貴
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors

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  • the present invention relates to an excrement disposal material and a method for producing the same.
  • Examples of conventional excrement disposal materials include those described in Patent Document 1.
  • the excrement disposal material described in the same document is composed of a plurality of granules having hydrophobicity (water repellency), and is used in a system toilet.
  • a system toilet is divided into an upper space and a lower space by a mesh-like sheet that allows urine to pass through.
  • a plurality of granules are laid in the upper space.
  • a liquid absorbent sheet is arranged in the lower space. After passing through the gaps between the granules, the excreted urine reaches the lower space through the mesh-like sheet. Urine that reaches the lower space is absorbed by the liquid absorbent sheet.
  • granules are formed that are mainly made of water-absorbing material and also contain salt.
  • salt By including salt in this manner, the liquid passage rate of the granular material can be increased. Therefore, even though a water-absorbing material is used as the main material, the hydrophobicity of the granules can be increased without performing hydrophobic treatment on the surface of the granules.
  • FIG. 1 is a schematic diagram showing one embodiment of the excrement disposal material according to the present invention.
  • the excrement treatment material 1 is an excrement treatment material used for treatment of excrement (mainly urine).
  • the excrement disposal material 1 may be an animal excrement disposal material used to dispose of the excrement of animals such as cats and dogs, or a human excrement disposal material used to dispose of human excrement. It may be wood.
  • the excrement treatment material 1 includes a plurality of granules 10 for treating excrement.
  • the excrement disposal material 1 is used, for example, in a system toilet that includes a box-shaped main body for receiving 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 through which urine passes. In that case, the excrement disposal material 1 is used with a plurality of granules 10 laid directly on the partition.
  • Each granule 10 has hydrophobicity. That is, the granular material 10 has the property of not absorbing liquid such as urine at all, or hardly absorbing it at all. In order for the granular material 10 to have hydrophobicity, it is necessary that the liquid passage rate measured by the following test be 60% or more. First, a granular material 10 (sample) equivalent to 50 g is placed in a sieve having an inner diameter of 10 cm and an opening of 1 mm. Place an empty beaker under the sieve.
  • Each granule 10 contains a water-absorbing material as a main material.
  • the main material refers to the material that accounts for the largest weight percentage in the granule 10 among the materials (excluding the salt described later) constituting each granule 10.
  • the weight percentage of the main material (water-absorbing material) in each granule 10 is preferably 50% or more and 95% or less, more preferably 75% or more and 90% or less.
  • the water-absorbing material is organic.
  • the organic water-absorbing material for example, paper, plants, plastics, or organic sludge can be used. In this embodiment, the water-absorbing material is not subjected to hydrophobic treatment.
  • Paper refers to materials mainly made of pulp.
  • the paper include, in addition to ordinary paper (paper powder), recycled pulp, classified PVC wallpaper, and fluff pulp.
  • a classified product of PVC wallpaper is obtained by removing a portion of polyvinyl chloride from paper and PVC wallpaper containing polyvinyl chloride.
  • plants include wood flour, sawdust, and plant residues (tea leaves, okara, etc.).
  • classified paper diapers plastics obtained by classifying paper diapers
  • organic sludges include papermaking sludge and pulp sludge.
  • Each granule 10 contains salt (sodium chloride) in addition to the water-absorbing material.
  • the weight proportion of the salt in each granule 10 is equal to or the second largest after the water-absorbing material.
  • the weight proportion of the salt in each granular body 10 is preferably 5% or more and 50% or less, more preferably 10% or more and 25% or less.
  • Each granule 10 contains a hydrophobic agent in addition to the water-absorbing material and salt.
  • a hydrophobic agent paraffin can be used, for example.
  • the weight proportion of the hydrophobic agent in each granule 10 is, for example, 1% or more and 5% or less.
  • each granule 10 is made of only a water-absorbing material, a salt, and a hydrophobic agent, and does not contain other materials (adhesives, etc.).
  • This manufacturing method includes a granule forming step.
  • the weight proportion of the salt in the granules 10 is equal to or the second largest after the water-absorbing material.
  • the weight proportion of the salt in the granules 10 is preferably 5% or more, and more preferably 10% or more.
  • the weight proportion of the salt in the granules 10 is preferably 50% or less, more preferably 25% or less.
  • the weight proportion of the salt may be greater than the weight percentage of water-absorbing material.
  • the water-absorbing material is an organic substance
  • paper is used as the water-absorbing material
  • recycled pulp is used as the water-absorbing material, it can also contribute to the effective use of waste paper.
  • the granular material 10 contains a hydrophobic agent. Thereby, the hydrophobicity of the granular material 10 can be further improved.
  • each granule 10 may be made of only the water-absorbing material and salt.
  • each granule 10 may contain one or more materials selected from the group consisting of adhesives, colorants, and deodorizing antibacterial agents together with or in place of the hydrophobic agent. good.
  • the adhesive include starch such as corn starch, CMC (carboxymethyl cellulose), PVA (polyvinyl alcohol), or dextrin.
  • the weight proportion of the adhesive in each granular body 10 is, for example, 1% or more and 5% or less.
  • colorants include chalk powder.
  • the weight ratio of the colorant in each granular body 10 is, for example, 1% or more and 5% or less.
  • deodorizing antibacterial agents include copper compounds such as copper sulfate, and catechin powder.
  • the weight proportion of the deodorant antibacterial agent in each granular material 10 is, for example, 0.1% or more and 1% or less.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Housing For Livestock And Birds (AREA)

Abstract

Provided are: an excrement treatment material capable of increasing hydrophobicity even without performing a hydrophobization treatment; and a method for producing the same. An excrement treatment material 1 is provided with granular bodies 10 having hydrophobicity. The granular bodies 10 contain, as a main material, a water absorbent material and a salt.

Description

排泄物処理材及びその製造方法Excrement disposal material and its manufacturing method
　本発明は、排泄物処理材及びその製造方法に関する。 The present invention relates to an excrement disposal material and a method for producing the same.
　従来の排泄物処理材としては、例えば特許文献１に記載されたものがある。同文献に記載された排泄物処理材は、疎水性（撥水性）を有する複数の粒状体からなり、システムトイレにおいて使用される。システムトイレは、尿を通過させるメッシュ状のシートによって上部空間と下部空間とに区画されている。複数の粒状体は、上部空間に敷設されている。下部空間には、吸液シートが配設されている。排泄された尿は、粒状体どうしの隙間を通り抜けた後、メッシュ状のシートを通じて下部空間に達する。下部空間に達した尿は、吸液シートによって吸収される。 Examples of conventional excrement disposal materials include those described in Patent Document 1. The excrement disposal material described in the same document is composed of a plurality of granules having hydrophobicity (water repellency), and is used in a system toilet. A system toilet is divided into an upper space and a lower space by a mesh-like sheet that allows urine to pass through. A plurality of granules are laid in the upper space. A liquid absorbent sheet is arranged in the lower space. After passing through the gaps between the granules, the excreted urine reaches the lower space through the mesh-like sheet. Urine that reaches the lower space is absorbed by the liquid absorbent sheet.
特開２００５－１１０７００号公報Japanese Patent Application Publication No. 2005-110700
　かかる疎水性の排泄物処理材は、吸水性の排泄物処理材とは異なり、尿を全く吸収しないか、あるいは吸収するとしても殆ど吸収しないため、繰り返し使用することが可能である。このように排泄物処理材を繰り返し使用するには、当該排泄物処理材の疎水性が高い方が有利である。しかしながら、紙類等の吸水性材料を主材料として粒状体を形成する場合、当該粒状体の疎水性を高めるには、粒状体の表面に疎水処理（撥水処理）を施す必要があった。このことは、排泄物処理材の製造工程の複雑化を招く要因となる。 Unlike water-absorbing excrement disposal materials, such hydrophobic excrement disposal materials do not absorb urine at all, or absorb very little if at all, so they can be used repeatedly. In order to use the excrement disposal material repeatedly in this way, it is advantageous for the excrement disposal material to have high hydrophobicity. However, when forming granules using a water-absorbing material such as paper as a main material, it has been necessary to perform hydrophobic treatment (water repellent treatment) on the surface of the granules in order to increase the hydrophobicity of the granules. This becomes a factor that complicates the manufacturing process of the excrement disposal material.
　本発明は、上記課題に鑑みてなされたものであり、疎水処理を施さなくても疎水性を高めることが可能な排泄物処理材、及びその製造方法を提供することを目的とする。 The present invention has been made in view of the above-mentioned problems, and aims to provide an excrement disposal material that can increase hydrophobicity without hydrophobic treatment, and a method for producing the same.
　本発明による排泄物処理材は、疎水性を有する粒状体を備え、上記粒状体は、吸水性材料を主材料とするとともに、塩を含有することを特徴とする。 The excrement treatment material according to the present invention is characterized in that it includes hydrophobic granules, and the granules are mainly made of a water-absorbing material and contain salt.
　この排泄物処理材においては、吸水性材料を主材料とするとともに、塩を含有する粒状体が設けられている。このように塩を含有させることにより、粒状体の液通過率を高めることができる。このため、主材料として吸水性材料を用いているにもかかわらず、粒状体の表面に疎水処理を施すことなしに当該粒状体の疎水性を高めることができる。 This excrement treatment material is mainly made of a water-absorbing material and is also provided with granules containing salt. By including salt in this manner, the liquid passage rate of the granular material can be increased. Therefore, even though a water-absorbing material is used as the main material, the hydrophobicity of the granules can be increased without performing hydrophobic treatment on the surface of the granules.
　また、本発明による排泄物処理材の製造方法は、疎水性を有する粒状体を備える排泄物処理材を製造する方法であって、吸水性材料を主材料とするとともに塩を含有する上記粒状体を形成する粒状体形成工程を含むことを特徴とする。 Further, the method for producing an excrement disposal material according to the present invention is a method for producing an excrement disposal material comprising hydrophobic granules, wherein the granules are mainly composed of a water-absorbing material and contain salt. It is characterized by including a granule forming step of forming .
　この製造方法においては、吸水性材料を主材料とするとともに、塩を含有する粒状体が形成される。このように塩を含有させることにより、粒状体の液通過率を高めることができる。このため、主材料として吸水性材料を用いているにもかかわらず、粒状体の表面に疎水処理を施すことなしに当該粒状体の疎水性を高めることができる。 In this manufacturing method, granules are formed that are mainly made of water-absorbing material and also contain salt. By including salt in this manner, the liquid passage rate of the granular material can be increased. Therefore, even though a water-absorbing material is used as the main material, the hydrophobicity of the granules can be increased without performing hydrophobic treatment on the surface of the granules.
　本発明によれば、疎水処理を施さなくても疎水性を高めることが可能な排泄物処理材、及びその製造方法が実現される。 According to the present invention, an excrement treatment material whose hydrophobicity can be increased without hydrophobic treatment and a method for producing the same are realized.
本発明による排泄物処理材の一実施形態を示す模式図である。1 is a schematic diagram showing one embodiment of an excrement disposal material according to the present invention.
　以下、図面を参照しつつ、本発明の実施形態について詳細に説明する。なお、図面の説明においては、同一要素には同一符号を付し、重複する説明を省略する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in the description of the drawings, the same elements are given the same reference numerals and redundant description will be omitted.
　図１は、本発明による排泄物処理材の一実施形態を示す模式図である。排泄物処理材１は、排泄物（主に尿）の処理に用いられる排泄物処理材である。排泄物処理材１は、猫や犬等の動物の排泄物の処理に用いられる動物用の排泄物処理材であってもよいし、人の排泄物の処理に用いられる人用の排泄物処理材であってもよい。排泄物処理材１は、排泄物を処理するための複数の粒状体１０を備えている。排泄物処理材１は、例えば、排泄された尿を受ける箱状の本体部と、本体部の内部空間を上部空間と下部空間とに区画する仕切部とを備えるシステムトイレにおいて使用される。仕切部は、尿を通過させる貫通孔を有している。その場合、排泄物処理材１は、複数の粒状体１０が仕切部上に直接敷設された状態で使用される。 FIG. 1 is a schematic diagram showing one embodiment of the excrement disposal material according to the present invention. The excrement treatment material 1 is an excrement treatment material used for treatment of excrement (mainly urine). The excrement disposal material 1 may be an animal excrement disposal material used to dispose of the excrement of animals such as cats and dogs, or a human excrement disposal material used to dispose of human excrement. It may be wood. The excrement treatment material 1 includes a plurality of granules 10 for treating excrement. The excrement disposal material 1 is used, for example, in a system toilet that includes a box-shaped main body for receiving 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 through which urine passes. In that case, the excrement disposal material 1 is used with a plurality of granules 10 laid directly on the partition.
　各粒状体１０は、疎水性を有している。すなわち、粒状体１０は、尿等の液体を全く吸収しないか、あるいは吸収するとしても殆ど吸収しない性質を有する。粒状体１０が疎水性を有するというには、次の試験により測定される液通過率が６０％以上であることが必要である。まず、内径１０ｃｍ、目開き１ｍｍの篩に５０ｇ相当の粒状体１０（サンプル）を入れる。篩の下には、空のビーカーを設置する。そして、サンプルに対し、外筒の内径３ｃｍ、筒先の内径４ｍｍのシリンジ（テルモ社製６０ｍｌシリンジ）を用いて、３０ｍｌの水を１０秒かけて滴下する。１分間放置した後、ビーカー内の水量を計測する。計測した水量の滴下した水量（３０ｍｌ）に対する割合をもって液通過率とする。すなわち、ビーカー内の水量が１８ｍｌ以上であれば、液通過率が６０％以上となるため、粒状体１０が疎水性を有するといえる。 Each granule 10 has hydrophobicity. That is, the granular material 10 has the property of not absorbing liquid such as urine at all, or hardly absorbing it at all. In order for the granular material 10 to have hydrophobicity, it is necessary that the liquid passage rate measured by the following test be 60% or more. First, a granular material 10 (sample) equivalent to 50 g is placed in a sieve having an inner diameter of 10 cm and an opening of 1 mm. Place an empty beaker under the sieve. Then, 30 ml of water is dripped onto the sample over 10 seconds using a syringe (60 ml syringe manufactured by Terumo Corporation) with an outer cylinder having an inner diameter of 3 cm and a tip having an inner diameter of 4 mm. 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 liquid passage rate. That is, if the amount of water in the beaker is 18 ml or more, the liquid passage rate is 60% or more, so it can be said that the granular material 10 has hydrophobicity.
　各粒状体１０は、粒状をしている。かかる粒状の形状としては、例えば、球、円柱、又は楕円体が挙げられる。各粒状体１０の粒径は、例えば、５ｍｍ以上２０ｍｍ以下である。ここで、粒状体１０の粒径は、当該粒状体１０を内包し得る最小の球の直径として定義される。 Each granular body 10 has a granular shape. Examples of such granular shapes include spheres, cylinders, and ellipsoids. The particle size of each granule 10 is, for example, 5 mm or more and 20 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.
　各粒状体１０は、吸水性材料を主材料として含有している。ここで、主材料とは、各粒状体１０を構成する材料（後述する塩を除く。）のうち、当該粒状体１０に占める重量割合が最大のものをいう。各粒状体１０に占める主材料（吸水性材料）の重量割合は、５０％以上９５％以下であることが好ましく、７５％以上９０％以下であることがより好ましい。吸水性材料は、有機物であることが好ましい。有機物である吸水性材料としては、例えば、紙類、植物類、プラスチック類、又は有機汚泥類を用いることができる。本実施形態において吸水性材料には、疎水処理が施されていない。 Each granule 10 contains a water-absorbing material as a main material. Here, the main material refers to the material that accounts for the largest weight percentage in the granule 10 among the materials (excluding the salt described later) constituting each granule 10. The weight percentage of the main material (water-absorbing material) in each granule 10 is preferably 50% or more and 95% or less, more preferably 75% or more and 90% or less. Preferably, the water-absorbing material is organic. As the organic water-absorbing material, for example, paper, plants, plastics, or organic sludge can be used. In this embodiment, the water-absorbing material is not subjected to hydrophobic treatment.
　紙類は、パルプを主体とする材料をいう。紙類としては、例えば、通常の紙（紙粉）の他にも、再生パルプ、塩ビ壁紙分級物、又はフラッフパルプが挙げられる。塩ビ壁紙分級物は、紙及びポリ塩化ビニルを含有する塩ビ壁紙からポリ塩化ビニルの一部が除去されてなる。植物類としては、例えば、木粉、大鋸屑、又は植物性残渣（茶殻、オカラ等）が挙げられる。プラスチック類としては、例えば、紙おむつ分級物（紙おむつを分級することにより得られるプラスチック）を用いてもよい。有機汚泥類としては、例えば、製紙スラッジ又はパルプスラッジが挙げられる。 Paper refers to materials mainly made of pulp. Examples of the paper include, in addition to ordinary paper (paper powder), recycled pulp, classified PVC wallpaper, and fluff pulp. A classified product of PVC wallpaper is obtained by removing a portion of polyvinyl chloride from paper and PVC wallpaper containing polyvinyl chloride. Examples of plants include wood flour, sawdust, and plant residues (tea leaves, okara, etc.). As the plastics, for example, classified paper diapers (plastics obtained by classifying paper diapers) may be used. Examples of organic sludges include papermaking sludge and pulp sludge.
　各粒状体１０は、吸水性材料の他に、塩（塩化ナトリウム）を含有している。各粒状体１０に占める塩の重量割合は、吸水性材料に等しいか吸水性材料に次いで２番目に大きい。各粒状体１０に占める塩の重量割合は、５％以上５０％以下であることが好ましく、１０％以上２５％以下であることがより好ましい。 Each granule 10 contains salt (sodium chloride) in addition to the water-absorbing material. The weight proportion of the salt in each granule 10 is equal to or the second largest after the water-absorbing material. The weight proportion of the salt in each granular body 10 is preferably 5% or more and 50% or less, more preferably 10% or more and 25% or less.
　各粒状体１０は、吸水性材料及び塩に加えて、疎水剤を含有している。疎水剤としては、例えばパラフィンを用いることができる。各粒状体１０に占める疎水剤の重量割合は、例えば１％以上５％以下である。本実施形態において各粒状体１０は、吸水性材料、塩及び疎水剤のみからなり、その他の材料（接着剤等）を含有していない。 Each granule 10 contains a hydrophobic agent in addition to the water-absorbing material and salt. As the hydrophobic agent, paraffin can be used, for example. The weight proportion of the hydrophobic agent in each granule 10 is, for example, 1% or more and 5% or less. In this embodiment, each granule 10 is made of only a water-absorbing material, a salt, and a hydrophobic agent, and does not contain other materials (adhesives, etc.).
　本実施形態において各粒状体１０は、表面が被覆されていない造粒物である。詳細には、各粒状体１０は、造粒材料（各粒状体１０を構成する材料）を造粒してなる造粒物である。各粒状体１０には、被覆層（造粒物の表面の一部又は全体を覆う層）が設けられていない。それゆえ、各粒状体１０は、均質な造粒物からなる単層構造をしている。 In this embodiment, each granule 10 is a granule whose surface is not coated. Specifically, each granular body 10 is a granulated product obtained by granulating a granulated material (a material constituting each granular body 10). Each granule 10 is not provided with a coating layer (a layer that covers part or the entire surface of the granule). Therefore, each granule 10 has a single layer structure made of homogeneous granules.
　続いて、本発明による排泄物処理材の製造方法の一実施形態として、排泄物処理材１の製造方法の一例を説明する。この製造方法は、粒状体形成工程を含んでいる。 Next, as an embodiment of the method for producing an excrement disposal material according to the present invention, an example of a method for producing the excrement disposal material 1 will be described. This manufacturing method includes a granule forming step.
　粒状体形成工程は、粒状体１０を形成する工程である。この工程においては、造粒装置を用いて造粒材料を造粒することにより、粒状体１０となる複数の造粒物を形成する。造粒材料は、主材料（吸水性材料）、塩及び疎水剤が均一に混合されたものである。本実施形態においては、造粒装置として、湿式造粒機の一種である押出造粒機を用いる。造粒に先立って、造粒材料には、粉砕、混錬、加水等の前処理が行われる。加水量（造粒材料に対する水の重量割合）は、例えば１０％以上３０％以下である。造粒後は、篩分け、乾燥等の後処理が必要に応じて行われる。本実施形態においては、造粒後、造粒物の表面が被覆されることもなければ、造粒物の表面に疎水処理が施されることもない。以上により、複数の粒状体１０からなる排泄物処理材１が得られる。 The granule forming step is a step of forming granules 10. In this step, a plurality of granules that will become the granules 10 are formed by granulating the granulation material using a granulator. The granulated material is a uniform mixture of the main material (water-absorbing material), salt, and hydrophobic agent. In this embodiment, an extrusion granulator, which is a type of wet granulator, is used as the granulator. Prior to granulation, the granulation material is subjected to pretreatments such as crushing, kneading, and adding water. The amount of water added (weight ratio of water to granulated material) is, for example, 10% or more and 30% or less. After granulation, post-treatments such as sieving and drying are performed as necessary. In this embodiment, after granulation, the surface of the granules is neither coated nor subjected to hydrophobic treatment. Through the above steps, the excrement treatment material 1 consisting of a plurality of granules 10 is obtained.
　本実施形態の効果を説明する。本実施形態においては、吸水性材料を主材料とするとともに、塩を含有する粒状体１０が形成される。このように塩を含有させることにより、粒状体１０の液通過率を高めることができる。水分を含んだ塩が固化剤として機能し、粒状体１０の表面や内部に隙間が生じにくくなるからである。かかる隙間は、粒状体１０の内部に尿等の液体が浸入する経路となるため、粒状体１０の液通過率を低下させる要因となる。このため、主材料として吸水性材料を用いているにもかかわらず、粒状体１０の表面に疎水処理を施すことなしに粒状体１０の疎水性を高めることができる。したがって、疎水処理を施さなくても疎水性を高めることが可能な排泄物処理材１、及びその製造方法が実現されている。 The effects of this embodiment will be explained. In this embodiment, the granules 10 are formed which are mainly made of a water-absorbing material and also contain salt. By including salt in this manner, the liquid passage rate of the granular material 10 can be increased. This is because the salt containing water functions as a solidifying agent, making it difficult for gaps to form on the surface or inside of the granular material 10. Such a gap becomes a path for liquid such as urine to infiltrate into the inside of the granular material 10, and becomes a factor that reduces the liquid passage rate of the granular material 10. Therefore, even though a water-absorbing material is used as the main material, the hydrophobicity of the granules 10 can be increased without performing hydrophobic treatment on the surface of the granules 10. Therefore, an excrement disposal material 1 and a method for producing the same have been realized which can increase hydrophobicity without performing hydrophobic treatment.
　粒状体１０は、表面が被覆されていない造粒物である。このため、造粒物の表面を被覆する工程を実行することなく、粒状体１０を形成することができる。これにより、排泄物処理材１の製造工程を簡略化することができる。 The granular material 10 is a granulated material whose surface is not coated. Therefore, the granules 10 can be formed without performing a step of coating the surface of the granules. Thereby, the manufacturing process of the excrement disposal material 1 can be simplified.
　粒状体１０に占める塩の重量割合は、吸水性材料に等しいか吸水性材料に次いで２番目に大きい。このように比較的多量の塩を粒状体１０に含有させることにより、塩の固化剤としての機能を充分に享受することができる。かかる観点から、粒状体１０に占める塩の重量割合は、５％以上であることが好ましく１０％以上であることがより好ましい。他方、塩の割合が大きすぎると、押出造粒時に、余分な塩がダイスの貫通孔に詰まる等の弊害が生じかねない。かかる観点から、粒状体１０に占める塩の重量割合は、５０％以下であることが好ましく、２５％以下であることがより好ましい。ただし、塩の重量割合が吸水性材料に等しいか吸水性材料に次いで２番目に大きくなるようにすることは、必須でない。例えば、塩の重量割合は、吸水性材料の重量割合より大きくてもよい。 The weight proportion of the salt in the granules 10 is equal to or the second largest after the water-absorbing material. By thus containing a relatively large amount of salt in the granular material 10, the function of the salt as a solidifying agent can be fully enjoyed. From this point of view, the weight proportion of the salt in the granules 10 is preferably 5% or more, and more preferably 10% or more. On the other hand, if the proportion of salt is too large, problems such as excessive salt clogging the through holes of the die may occur during extrusion granulation. From this point of view, the weight proportion of the salt in the granules 10 is preferably 50% or less, more preferably 25% or less. However, it is not essential that the weight proportion of the salt be equal to or the second largest after the water-absorbing material. For example, the weight percentage of salt may be greater than the weight percentage of water-absorbing material.
　吸水性材料の割合が大きい方が、粒状体１０の成形性（造粒時における成形のしやすさ）及び保形性（造粒後における形の崩れにくさ）の点で有利である。かかる観点から、粒状体１０に占める吸水性材料の重量割合は、５０％以上であることが好ましく、７５％以上であることがより好ましい。他方、吸水性材料の割合が大きすぎると、相対的に塩の割合が小さくなりすぎ、それにより塩の固化剤としての機能が不足しかねない。かかる観点から、粒状体１０に占める吸水性材料の重量割合は、９５％以下であることが好ましく、９０％以下であることがより好ましい。 A larger proportion of the water-absorbing material is advantageous in terms of moldability (ease of molding during granulation) and shape retention (difficulty in deforming the shape after granulation) of the granules 10. From this viewpoint, the weight proportion of the water-absorbing material in the granules 10 is preferably 50% or more, more preferably 75% or more. On the other hand, if the proportion of the water-absorbing material is too large, the proportion of salt will be relatively too small, and the function of the salt as a solidifying agent may thereby be insufficient. From this viewpoint, the weight proportion of the water-absorbing material in the granules 10 is preferably 95% or less, more preferably 90% or less.
　吸水性材料が有機物である場合、焼却処分に適した粒状体１０を得ることができる。このことは、使用済みの粒状体１０の処分の便宜に資する。吸水性材料として紙類を用いた場合、焼却処分に特に適した粒状体１０を得ることができる。さらに、吸水性材料として再生パルプを用いた場合、古紙の有効活用に貢献することもできる。 When the water-absorbing material is an organic substance, it is possible to obtain a granular material 10 suitable for incineration. This contributes to the convenience of disposal of the used granules 10. When paper is used as the water-absorbing material, it is possible to obtain granules 10 that are particularly suitable for incineration. Furthermore, when recycled pulp is used as the water-absorbing material, it can also contribute to the effective use of waste paper.
　粒状体１０は、疎水剤を含有している。これにより、粒状体１０の疎水性を一層高めることができる。 The granular material 10 contains a hydrophobic agent. Thereby, the hydrophobicity of the granular material 10 can be further improved.
　粒状体１０は、吸水性材料、塩及び疎水剤のみからなる。この場合、簡易な構成で、疎水性を有する粒状体１０を得ることができる。 The granular material 10 consists only of a water-absorbing material, a salt, and a hydrophobic agent. In this case, the hydrophobic granules 10 can be obtained with a simple configuration.
　本発明は、上記実施形態に限定されるものではなく、様々な変形が可能である。上記実施形態においては、粒状体１０が疎水剤を含有する場合を例示した。しかし、粒状体１０が疎水剤を含有することは、必須でない。すなわち、各粒状体１０は、吸水性材料及び塩のみからなってもよい。 The present invention is not limited to the above embodiments, and various modifications are possible. In the above embodiment, the case where the granular material 10 contains a hydrophobic agent was illustrated. However, it is not essential that the granules 10 contain a hydrophobic agent. That is, each granule 10 may be made of only the water-absorbing material and salt.
　上記実施形態において各粒状体１０は、疎水剤と共に、あるいは疎水剤に代えて、接着剤、着色剤及び消臭抗菌剤からなる群から選択される１又は２以上の材料を含有していてもよい。接着剤としては、例えば、コーンスターチ等の澱粉、ＣＭＣ（カルボキシメチルセルロース）、ＰＶＡ（ポリビニルアルコール）、又はデキストリンが挙げられる。各粒状体１０に占める接着剤の重量割合は、例えば１％以上５％以下である。着色剤としては、一般的な染料又は顔料の他にも、例えばチョーク粉が挙げられる。各粒状体１０に占める着色剤の重量割合は、例えば１％以上５％以下である。消臭抗菌剤としては、例えば、硫酸銅等の銅化合物、又はカテキン粉末が挙げられる。各粒状体１０に占める消臭抗菌剤の重量割合は、例えば０．１％以上１％以下である。 In the embodiment described above, each granule 10 may contain one or more materials selected from the group consisting of adhesives, colorants, and deodorizing antibacterial agents together with or in place of the hydrophobic agent. good. Examples of the adhesive include starch such as corn starch, CMC (carboxymethyl cellulose), PVA (polyvinyl alcohol), or dextrin. The weight proportion of the adhesive in each granular body 10 is, for example, 1% or more and 5% or less. In addition to common dyes or pigments, examples of colorants include chalk powder. The weight ratio of the colorant in each granular body 10 is, for example, 1% or more and 5% or less. Examples of deodorizing antibacterial agents include copper compounds such as copper sulfate, and catechin powder. The weight proportion of the deodorant antibacterial agent in each granular material 10 is, for example, 0.1% or more and 1% or less.
　上記実施形態においては、吸水性材料が有機物である場合を例示した。しかし、吸水性材料は、無機物であってもよいし、有機物及び無機物の混合物であってもよい。 In the above embodiment, the case where the water-absorbing material is an organic substance is exemplified. However, the water-absorbing material may be inorganic or a mixture of organic and inorganic materials.
１　排泄物処理材
１０　粒状体 1 Excrement treatment material 10 Granular material

Claims (26)

  1. 　疎水性を有する粒状体を備え、
    　前記粒状体は、吸水性材料を主材料とするとともに、塩を含有することを特徴とする排泄物処理材。     Equipped with hydrophobic granules,
    The excrement treatment material is characterized in that the granules are mainly made of a water-absorbing material and also contain salt.
  2. 　請求項１に記載の排泄物処理材において、
    　前記粒状体は、表面が被覆されていない造粒物である排泄物処理材。     The excrement disposal material according to claim 1,
    The granular material is an excrement treatment material that is a granulated material whose surface is not coated.
  3. 　請求項１又は２に記載の排泄物処理材において、
    　前記粒状体に占める前記塩の重量割合は、前記吸水性材料に等しいか前記吸水性材料に次いで２番目に大きい排泄物処理材。     The excrement disposal material according to claim 1 or 2,
    The weight percentage of the salt in the granules is equal to or the second largest after the water-absorbing material.
  4. 　請求項１又は２に記載の排泄物処理材において、
    　前記粒状体に占める前記塩の重量割合は、５％以上５０％以下である排泄物処理材。     The excrement disposal material according to claim 1 or 2,
    The excrement treatment material wherein the weight percentage of the salt in the granules is 5% or more and 50% or less.
  5. 　請求項４に記載の排泄物処理材において、
    　前記塩の前記重量割合は、１０％以上２５％以下である排泄物処理材。     In the excrement disposal material according to claim 4,
    The excrement treatment material wherein the weight ratio of the salt is 10% or more and 25% or less.
  6. 　請求項１又は２に記載の排泄物処理材において、
    　前記吸水性材料は、有機物である排泄物処理材。     The excrement disposal material according to claim 1 or 2,
    The water-absorbing material is an organic waste treatment material.
  7. 　請求項６に記載の排泄物処理材において、
    　前記吸水性材料は、紙類である排泄物処理材。     The excrement disposal material according to claim 6,
    The water-absorbing material is an excrement disposal material made of paper.
  8. 　請求項７に記載の排泄物処理材において、
    　前記吸水性材料は、再生パルプである排泄物処理材。     The excrement disposal material according to claim 7,
    The water-absorbing material is an excrement treatment material made of recycled pulp.
  9. 　請求項１又は２に記載の排泄物処理材において、
    　前記粒状体に占める前記吸水性材料の重量割合は、５０％以上９５％以下である排泄物処理材。     The excrement disposal material according to claim 1 or 2,
    The excrement disposal material wherein the weight ratio of the water-absorbing material to the granules is 50% or more and 95% or less.
  10. 　請求項１又は２に記載の排泄物処理材において、
    　前記粒状体は、疎水剤を含有する排泄物処理材。     The excrement disposal material according to claim 1 or 2,
    The granular material is an excrement treatment material containing a hydrophobic agent.
  11. 　請求項１０に記載の排泄物処理材において、
    　前記疎水剤は、パラフィンである排泄物処理材。     The excrement disposal material according to claim 10,
    The hydrophobic agent is an excrement treatment material that is paraffin.
  12. 　請求項１０に記載の排泄物処理材において、
    　前記粒状体に占める前記疎水剤の重量割合は、１％以上５％以下である排泄物処理材。     The excrement disposal material according to claim 10,
    The excrement treatment material wherein the weight percentage of the hydrophobic agent in the granules is 1% or more and 5% or less.
  13. 　請求項１０に記載の排泄物処理材において、
    　前記粒状体は、前記吸水性材料、前記塩及び前記疎水剤のみからなる排泄物処理材。     The excrement disposal material according to claim 10,
    The granular material is an excrement treatment material consisting only of the water-absorbing material, the salt, and the hydrophobic agent.
  14. 　疎水性を有する粒状体を備える排泄物処理材を製造する方法であって、
    　吸水性材料を主材料とするとともに塩を含有する前記粒状体を形成する粒状体形成工程を含むことを特徴とする排泄物処理材の製造方法。     A method for producing an excrement treatment material comprising hydrophobic granules, the method comprising:
    A method for producing an excrement disposal material, comprising a step of forming the granules, which are mainly made of a water-absorbing material and contain salt.
  15. 　請求項１４に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、造粒材料を造粒することにより、表面が被覆されていない造粒物である前記粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 14,
    In the granule forming step, the method for producing an excrement treatment material comprises forming the granules, which are granules whose surfaces are not coated, by granulating the granulation material.
  16. 　請求項１４又は１５に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、前記粒状体に占める前記塩の重量割合が前記吸水性材料に等しいか前記吸水性材料に次いで２番目に大きくなるように、当該粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 14 or 15,
    In the granular body forming step, the excrement treatment material is used to form the granular bodies such that the weight proportion of the salt in the granular bodies is equal to or the second largest after the water absorbent material. manufacturing method.
  17. 　請求項１４又は１５に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、前記粒状体に占める前記塩の重量割合が５％以上５０％以下となるように、当該粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 14 or 15,
    In the granule forming step, the method for producing an excrement treatment material includes forming granules such that the weight percentage of the salt in the granules is 5% or more and 50% or less.
  18. 　請求項１７に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、前記塩の前記重量割合が１０％以上２５％以下となるように、当該粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 17,
    In the granule forming step, the method for producing an excrement treatment material includes forming granules such that the weight ratio of the salt is 10% or more and 25% or less.
  19. 　請求項１４又は１５に記載の排泄物処理材の製造方法において、
    　前記吸水性材料は、有機物である排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 14 or 15,
    The water-absorbing material is an organic material.
  20. 　請求項１９に記載の排泄物処理材の製造方法において、
    　前記吸水性材料は、紙類である排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 19,
    The method for producing an excrement disposal material, wherein the water-absorbing material is paper.
  21. 　請求項２０に記載の排泄物処理材の製造方法において、
    　前記吸水性材料は、再生パルプである排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 20,
    The method for producing an excrement treatment material, wherein the water-absorbing material is recycled pulp.
  22. 　請求項１４又は１５に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、前記粒状体に占める前記吸水性材料の重量割合が５０％以上９５％以下となるように、当該粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 14 or 15,
    In the granule forming step, the method for producing an excreta treatment material includes forming granules such that the weight ratio of the water-absorbing material in the granules is 50% or more and 95% or less.
  23. 　請求項１４又は１５に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、疎水剤を含有する前記粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 14 or 15,
    In the granule forming step, the method for producing an excrement treatment material forms the granules containing a hydrophobic agent.
  24. 　請求項２３に記載の排泄物処理材の製造方法において、
    　前記疎水剤は、パラフィンである排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 23,
    The method for producing an excrement treatment material, wherein the hydrophobic agent is paraffin.
  25. 　請求項２３に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、前記粒状体に占める前記疎水剤の重量割合が１％以上５％以下となるように、当該粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 23,
    In the granule forming step, the method for producing an excrement treatment material includes forming granules such that the weight proportion of the hydrophobic agent in the granules is 1% or more and 5% or less.
  26. 　請求項２３に記載の排泄物処理材の製造方法において、
    　前記粒状体形成工程においては、前記吸水性材料、前記塩及び前記疎水剤のみからなる前記粒状体を形成する排泄物処理材の製造方法。     The method for producing an excrement disposal material according to claim 23,
    In the granule forming step, the method for producing an excrement treatment material comprises forming the granules consisting only of the water-absorbing material, the salt, and the hydrophobic agent.
PCT/JP2023/017263 2022-06-08 2023-05-08 Excrement treatment material and method for producing same WO2023238567A1 (en)

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JP3847307B2 (en) * 2004-07-06 2006-11-22 ペパーレット株式会社 Liquid absorbent and its manufacturing method
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