JP5713297B2 - Method for producing water-absorbing material for excrement disposal and water-absorbing material for excrement disposal - Google Patents
Method for producing water-absorbing material for excrement disposal and water-absorbing material for excrement disposal Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000011358 absorbing material Substances 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims description 51
- 230000002745 absorbent Effects 0.000 claims description 23
- 239000002250 absorbent Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 241000196324 Embryophyta Species 0.000 claims description 15
- 239000002023 wood Substances 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 229920002261 Corn starch Polymers 0.000 claims description 9
- 239000008120 corn starch Substances 0.000 claims description 9
- 239000005871 repellent Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002504 physiological saline solution Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000001877 deodorizing effect Effects 0.000 description 7
- 239000008187 granular material Substances 0.000 description 6
- 241000218691 Cupressaceae Species 0.000 description 5
- 230000002940 repellent Effects 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- 230000008961 swelling Effects 0.000 description 5
- 210000003608 fece Anatomy 0.000 description 4
- 235000013312 flour Nutrition 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 208000032484 Accidental exposure to product Diseases 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 241000218645 Cedrus Species 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000218641 Pinaceae Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
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Description
本発明は、犬や猫など、小動物の糞尿を廃棄処理する際に使用され、特に、適度な無吸水性を備えた排泄物処理用無吸水材を製造することが可能な排泄物処理用無吸水材の製造方法及び、この製造方法を用いて得られる排泄物処理用無吸水材に関する。 INDUSTRIAL APPLICABILITY The present invention is used when discarding manure of small animals such as dogs and cats, and in particular, can be used for excrement disposal that can produce a water-absorbing material for excrement disposal that has moderate water absorption. The present invention relates to a method for producing a water-absorbing material and a non-absorbent material for excrement treatment obtained by using this production method.
犬や猫などのペットを室内で飼育するとき、糞尿を廃棄処理するための排泄物処理材が欠かせない。この種の排泄物処理材は、一般家庭で使用されるから、脱臭力、抗菌性に優れ、焼却又はトイレ等に流すといった処分が可能で、衛生的であることが望まれている。出願人は、例えば、下記特許文献１において、檜を主体とした木粉を使用して吸水性に優れた粒状体を製造できるペット用排泄物処理材の製造方法を提案している。 When pets such as dogs and cats are raised indoors, excrement disposal materials are necessary to dispose of manure. Since this kind of excrement disposal material is used in general households, it is desired to be sanitary because it is excellent in deodorizing power and antibacterial properties, can be disposed of by incineration or flowing into a toilet or the like. For example, in the following Patent Document 1, the applicant has proposed a method for producing a pet excreta treating material capable of producing a granular material having excellent water absorption using wood flour mainly composed of straw.
ペット用排泄物処理材は、ペットが排泄する尿を素早く通過させる撥水性のものと、尿を積極的に吸収する吸水性のものとの２種類が、２層に区画されたペット用トイレにそれぞれ敷設される。ペット用トイレの上層部分に敷設されるのが撥水性のペット用排泄物処理材であり、下層部分に敷設されるのが吸水性のペット用排泄物処理材である。 There are two types of pet excrement disposal materials for pet toilets that are divided into two layers: water-repellent materials that allow urine that pets excrete to pass through quickly and water-absorbing materials that actively absorb urine. Each is laid. A water-repellent pet excrement disposal material is laid on the upper layer portion of the pet toilet, and a water-absorbing pet excrement disposal material is laid on the lower layer portion.
この中で、撥水性のペット用排泄物処理材に関し、植物由来の素材を主成分として構成されたペット用排泄物処理材に係る発明が下記特許文献２に提案され、適度な膨潤度合いを備えることで、消臭性の強化が図られている。 Among these, regarding water-repellent pet excrement disposal materials, an invention relating to pet excrement disposal materials composed mainly of plant-derived materials is proposed in the following Patent Document 2 and has an appropriate degree of swelling. Therefore, the deodorizing property is enhanced.
上記特許文献２では、造粒工程において混合物を、接着剤として用いられる合成樹脂の融点以上に加熱する必要があり、エネルギー的に有利な製法ではないという問題がある。すなわち、常温下で造粒工程を実施しても圧密化した造粒物が造粒され、かつ適度な膨潤度合いを備えて消臭性の強化が図られたペット用排泄物処理材を製造することができれば、そのようなペット用排泄物処理材を安価に提供することができると期待される。 In the said patent document 2, it is necessary to heat a mixture more than melting | fusing point of the synthetic resin used as an adhesive agent in a granulation process, and there exists a problem that it is not a manufacturing method advantageous in terms of energy. That is, a pet excreta treating material is produced in which a compacted granulated product is granulated even when a granulation step is performed at room temperature, and has an appropriate degree of swelling and enhanced deodorizing properties. If possible, it is expected that such pet excrement disposal materials can be provided at low cost.
本発明は、上記実情に鑑みて提案され、製造工程を工夫し、常温下で造粒工程を実施することができ、かつ適度な膨潤度合いを備えて消臭性が強化された排泄物処理用無吸水材の製造方法及び、排泄物処理用無吸水材を提供することを目的とする。また、構成成分のほとんどを植物由来の材料で構成し、一般家庭で幼児等の誤飲に配慮する製品とするという目的もある。 The present invention has been proposed in view of the above circumstances, and can be used for excrement treatment in which the production process is devised, the granulation process can be carried out at room temperature, and the deodorizing property is enhanced with an appropriate degree of swelling. It aims at providing the manufacturing method of a water-absorbing material, and the water-absorbing material for excrement disposal. Another object is to make most of the constituent components from plant-derived materials and to prevent accidental ingestion by infants in general households.
上記目的を達成するため、本発明は、植物由来の素材を主成分として含むペット用の排泄物処理用無吸水材の製造方法であって、前記素材としての粉砕した木材に植物由来の結合剤であるコーンスターチ又は澱粉と、水と、合成樹脂からなる撥水剤を少なくとも加えて混合し、水分を１０〜１５質量％として得た混合物に対し、常温下で、線接触として６００〜８００ｋｇｆ／ｃｍの圧力をかけながら押し出して円柱状に造粒し、造粒して得られた造粒物を水分が３質量％以下になるまで乾燥する工程を含むことを特徴とする。 In order to achieve the above object, the present invention is a method for producing a water-absorbing material for excrement disposal for pets containing a plant-derived material as a main component, the plant-derived binder on the crushed wood as the material Corn starch or starch, water, and a water repellent made of synthetic resin are added and mixed, and the mixture obtained at a water content of 10 to 15% by mass is 600 to 800 kgf / cm as line contact at room temperature. It is characterized by comprising a step of extruding while applying a pressure of 5 to form a columnar shape, and drying the granulated product obtained by granulation until the water content becomes 3% by mass or less .
また、本発明は、上記排泄物処理用無吸水材の製造方法を用いて得られた排泄物処理用無吸水材であって、生理食塩水に浸漬し、その１０分経過後に取り出して１分間放置した後の質量が浸漬する前の１２５質量％以下であり、２０分経過後に取り出して１分間放置した後の質量が浸漬する前の１４０質量％以下であり、３０分経過後に取り出して１分間放置した後の質量が浸漬する前の１５５質量％以下であり、かつ、３０分経過後も非崩壊となることを特徴とする排泄物処理用無吸水材である。 Further, the present invention is a non-absorbent material for excrement treatment obtained by using the above-described method for producing a non-absorbent material for excrement treatment, which is immersed in physiological saline, taken out after 10 minutes and removed for 1 minute. The mass after being left is 125% by mass or less before soaking, the mass after being taken out after 20 minutes and being left for 1 minute is 140% by mass or less before being soaked, and taken out after 30 minutes and being taken for 1 minute. The non-absorbent material for excrement treatment is characterized in that the mass after being left is 155% by mass or less before being immersed, and is not disintegrated even after 30 minutes.
本発明に係る排泄物処理用無吸水材の製造方法では、素材としての粉砕した木材、植物由来の結合剤であるコーンスターチ又は澱粉、水及び、合成樹脂からなる撥水剤を混合し、水分を１０〜１５質量％として得られた混合物に対し、常温下で、線接触として６００〜８００ｋｇｆ／ｃｍの圧力をかけながら押し出して円柱状に造粒する。これにより、従来必要であった加熱工程を省くことでエネルギー的に効率的な製法として提供することができ、安価に排泄物処理用無吸水材を提供することが可能となる。さらに、植物由来の素材と植物由来の結合剤とで構成されているから、一般家庭で幼児等の誤飲に配慮した製品を製造することができる。 In the method for producing a non-absorbent material for excrement treatment according to the present invention, pulverized wood as a raw material, corn starch or starch as a plant-derived binder, water, and a water repellent composed of a synthetic resin are mixed, and moisture is added. The mixture obtained as 10 to 15% by mass is extruded at a normal temperature while applying a pressure of 600 to 800 kgf / cm as a line contact and granulated into a cylindrical shape. Thereby, it can provide as an energy efficient manufacturing method by omitting the heating process which was conventionally required, and it becomes possible to provide a water-absorbing material for excrement treatment at a low cost. Furthermore, since it is composed of a plant-derived material and a plant-derived binder, it is possible to produce a product in consideration of accidental ingestion by an infant or the like in a general household.
また、本発明に係る排泄物処理用無吸水材では、本発明に係る排泄物処理用無吸水材の製造方法を用いて得ることにより、生理食塩水に浸漬し、その１０分経過後に取り出して１分間放置した後の質量が浸漬する前の１２５％以下となり、２０分経過後に取り出して１分間放置した後の質量が浸漬する前の１４０％以下となり、３０分経過後に取り出して１分間放置した後の質量が浸漬する前の１５５質量％以下となるという適度な膨潤性を備えさせることができ、使用するに従って徐々に膨潤させることで、植物由来の素材が有する消臭性を持続的に発揮させることができる。 Further, in the non-absorbent material for excrement treatment according to the present invention, the non-absorbent material for excrement treatment according to the present invention is obtained by using the method for producing a non-absorbent material for excrement treatment, soaked in physiological saline, and taken out after 10 minutes. The mass after leaving for 1 minute becomes 125% or less before soaking, and after taking out after 20 minutes, the mass after leaving for 1 minute becomes 140% or less before soaking. After 30 minutes, it is taken out and left for 1 minute. It can be provided with an appropriate swelling property that the subsequent mass is 155% by mass or less before being immersed, and by gradually swelling as it is used, the deodorizing property of plant-derived materials is continuously exhibited. Can be made.
以下、本発明に関する一実施形態を詳細に説明する。なお、この実施形態は、本発明の構成を具現化した例示に過ぎず、特許請求の範囲に記載した事項を逸脱することがなければ種々の設計変更を行うことができる。 Hereinafter, an embodiment relating to the present invention will be described in detail. This embodiment is merely an example embodying the configuration of the present invention, and various design changes can be made without departing from the matters described in the claims.
まず、本発明に係る排泄物処理用無吸水材の製造方法について説明する。 First, the manufacturing method of the non-absorbent material for excrement disposal according to the present invention will be described.
植物由来の素材としての木材、例えば、ヒノキを粉砕機に投入して粉砕し、粉砕した木材（以下、「粉砕後木粉」という。）をホッパーに貯蔵する。ホッパーに貯蔵することにより水分の吸収を防止するとともに、風による飛散等を防止する。その後、ホッパーから粉砕後木粉を取り出し、移送機で結合材としてのコーンスターチを所定量混合しながら移送し、混合機に投入し、水、撥水剤を所定量加えて混合物としての混練物とする。なお、混練物とする過程では、粉砕後木粉にコーンスターチを混合し、続いて撥水剤と水を加えるといった順で実施することが効率的な混合（混練）のために好ましい。加水量は、粉砕後木粉のおよそ１０分の１の質量とすればよい。 Wood as a plant-derived material, for example, cypress, is put into a pulverizer and pulverized, and the pulverized wood (hereinafter referred to as “pulverized wood flour”) is stored in a hopper. By storing in a hopper, moisture absorption is prevented and scattering by wind is prevented. Thereafter, the pulverized wood powder is taken out from the hopper, transferred while mixing a predetermined amount of corn starch as a binder with a transfer machine, put into the mixer, and added with a predetermined amount of water and water repellent and kneaded as a mixture To do. In the process of preparing the kneaded product, it is preferable for efficient mixing (kneading) that the corn starch is mixed with the pulverized wood flour, followed by the addition of the water repellent and water. The amount of water added may be about one-tenth the mass of the pulverized wood flour.
次に、孔が設けられたリングダイ及びこのリングダイを押圧するプレスロールを備える造粒機に混練物を投入し、常温で圧縮成形するとともに所定長さで切断することにより、円柱状に圧縮造粒し、造粒物とする。このとき混練物は、造粒機から線接触で６００〜８００ｋｇｆ／ｃｍの圧力を受ける。圧力を受けるのに加えて造粒機との摩擦、混練物同士の摩擦等により発熱し、コーンスターチが有するバインダーの機能が強化され、強固な円柱状に成形（造粒）されることになる。 Next, the kneaded material is put into a granulator equipped with a ring die provided with holes and a press roll that presses the ring die, compressed at a normal temperature, and cut into a predetermined length to be compressed into a cylindrical shape. Granulate to make a granulated product. At this time, the kneaded product is subjected to a pressure of 600 to 800 kgf / cm by line contact from the granulator. In addition to receiving pressure, it generates heat due to friction with the granulator, friction between the kneaded materials, etc., and the function of the binder of corn starch is strengthened and molded (granulated) into a strong cylindrical shape.
なお、上記の範囲を超えて圧力を高めれば、後述するふるい機で選別される不完全品が多くなるので好ましくない。一方、上記の範囲に届かない圧力とすれば、円柱状に成形されなかったり、円柱形状が乾燥中に維持できなくなったりして、やはり不完全品が多くなるので好ましくない。そして混練物に対して造粒時に与える圧力は、造粒機に一度に投入する混練物の量等に基づいて、上記の範囲内で適宜調整し、最も不完全品が少なくなるような圧力値を決定すればよい。また、造粒する混練物の水分は１０〜１５質量％であることが、強固な円柱状に成形されるために好ましい。造粒後の造粒物の水分は、造粒前に比べ約半分になる。 If the pressure is increased beyond the above range, the number of incomplete products selected by a sieving machine, which will be described later, is not preferable. On the other hand, if the pressure does not reach the above range, it is not preferable because it is not formed into a cylindrical shape or the cylindrical shape cannot be maintained during drying, and the number of incomplete products increases. The pressure applied to the kneaded product at the time of granulation is appropriately adjusted within the above range based on the amount of the kneaded product charged into the granulator at a time, and the pressure value at which the least incomplete product is reduced. Can be determined. Further, the water content of the kneaded product to be granulated is preferably 10 to 15% by mass because it is formed into a strong columnar shape. The moisture of the granulated product after granulation is about half that before granulation.
その後、円柱状の造粒物を乾燥機に投入して加熱し、水分が３質量％以下になるまで除去する。なお、本実施形態では、造粒物を投入する入口と、乾燥させた造粒物が排出される出口をそれぞれ備えた乾燥機により乾燥し、その出口で水分が３質量％以下になったことを確認している。乾燥時間は、出口での造粒物の水分に基づいて決めればよい。 Thereafter, the columnar granulated product is put into a dryer and heated, and is removed until the water content becomes 3% by mass or less. In addition, in this embodiment, it dried with the drying machine each provided with the entrance which throws in a granulated material, and the exit from which the dried granulated material was discharged | emitted, and the water | moisture content became 3 mass% or less at the exit. Have confirmed. The drying time may be determined based on the moisture of the granulated product at the outlet.
最後に、乾燥させた造粒物を、ふるい機に移送し、所定の大きさの製品とそれ以外の不完全品とに選別する。所定の大きさのものを袋詰め機に送り、袋詰めを行う。袋詰めされる製品の大きさは、直径が６ｍｍ以下、長さ（高さ）が１７ｍｍ以下である。それ以外の造粒物は、再度粉砕機に戻して活用する。 Finally, the dried granulated product is transferred to a sieving machine and sorted into a predetermined size product and other incomplete products. A predetermined size is sent to the bagging machine and packed. The size of the product to be packaged is 6 mm or less in diameter and 17 mm or less in length (height). The other granulated materials are returned to the pulverizer and utilized.
ここで、本実施形態において、ふるい機で所定の大きさのものを選別する工程を、乾燥前（すなわち、造粒後）の造粒物に対して行ってもよい。この段階で選別することにより、乾燥機における熱エネルギーの不要な消費を抑えることができ、一連の工程を効率化することができるからである。 Here, in this embodiment, you may perform the process of classify | selecting the thing of a predetermined magnitude | size with a sieve with respect to the granulated material before drying (namely, after granulation). By selecting at this stage, unnecessary consumption of heat energy in the dryer can be suppressed, and the series of steps can be made more efficient.
撥水剤としては、ワックス系又はオレフィン系の合成樹脂を採用することができる。 As the water repellent, a wax-based or olefin-based synthetic resin can be employed.
下記［表１］に、本発明に係る排泄物処理用無吸水材を構成する成分の混合時の質量比を示す。 Table 1 below shows the mass ratio when mixing the components constituting the non-absorbent material for excrement disposal according to the present invention.
また、本発明に係る排泄物処理用無吸水材の製造方法を用いて製造された排泄物処理用無吸水材の撥水性テストの結果を下記［表２］に示す。なお、撥水性テストでは、製品（本発明）を２０ｇ、直径４ｍｍの市販品（比較例１）を２０ｇ、直径６ｍｍの市販品（比較例２）を２０ｇ、各々市販されている不織布製の袋体に入れ、生理食塩水に浸した。この袋体を所定時間経過時に取り出し、１分間の水切り（放置）後に質量を測定した。 [Table 2] shows the results of the water repellency test of the non-absorbent material for excrement treatment produced using the method for producing the non-absorbent material for excrement treatment according to the present invention. In the water repellency test, 20 g of the product (present invention), 20 g of a commercially available product having a diameter of 4 mm (Comparative Example 1) and 20 g of a commercially available product having a diameter of 6 mm (Comparative Example 2), each of which is a commercially available non-woven bag It was put in the body and immersed in physiological saline. The bag was taken out after a predetermined time, and the mass was measured after draining (leaving) for 1 minute.
上記［表２］から理解されるように、本発明に係る排泄物処理用無吸水材では、生理食塩水に浸漬し、その１０分経過後に取り出して１分間放置した後の質量が浸漬する前の１２５質量％以下であり、２０分経過後に取り出して１分間放置した後の質量が浸漬する前の１４０質量％以下であり、３０分経過後に取り出して１分間放置した後の質量が浸漬する前の１５５質量％以下であり、かつ、３０分経過後も非崩壊となることが分かった。市販されている排泄物処理用無吸水材（比較例１，２）と比べ遜色ない撥水性を備えることも判明した。 As can be understood from the above [Table 2], in the non-absorbent material for excrement treatment according to the present invention, before being immersed in the mass after being immersed in physiological saline, taken out after 10 minutes, and left for 1 minute. 125 mass% or less, and the mass after taking out after 20 minutes and leaving it for 1 minute is 140 mass% or less before immersion, before taking out the mass after taking out after 30 minutes and leaving it for 1 minute before immersion. It was found that it was 155% by mass or less of the non-disintegrating after 30 minutes. It has also been found that it has a water repellency comparable to that of a commercially available non-absorbent material for excrement treatment (Comparative Examples 1 and 2).
しかも、上記［表１］から理解されるように、本発明に係る排泄物処理用無吸水材の製造方法を用いて製造された排泄物処理用無吸水材は、バインダーにコーンスターチを用いるため、造粒時に加熱することを必要とせず、造粒機から線接触で６００〜８００ｋｇｆ／ｃｍの圧力を受けるのに加えて造粒機との摩擦、混練物同士の摩擦等により発熱し、コーンスターチが有するバインダーの機能が強化されていることが分かる。 Moreover, as understood from the above [Table 1], the non-absorbent material for excrement treatment produced using the method for producing the non-absorbent material for excrement treatment according to the present invention uses corn starch as a binder. It is not necessary to heat at the time of granulation, and in addition to receiving pressure of 600 to 800 kgf / cm by line contact from the granulator, it generates heat due to friction with the granulator, friction between kneaded materials, etc. It can be seen that the function of the binder is enhanced.
したがって、本発明に係る排泄物処理用無吸水材の製造方法は、結合剤に植物由来のコーンスターチを用いるとともに、線接触として６００〜８００ｋｇｆ／ｃｍの圧力をかけながら押し出して円柱状に造粒することで、常温下で円柱状に造粒することができる。そして、この製法より得られた本発明に係る排泄物処理用無吸水材は、生理食塩水に浸漬し、その１０分経過後に取り出して１分間放置した後の質量が浸漬する前の１２５％以下となり、２０分経過後に取り出して１分間放置した後の質量が浸漬する前の１４０％以下となり、３０分経過後に取り出して１分間放置した後の質量が浸漬する前の１５５質量％以下となるという適度な膨潤性を備える。このようなヒノキ由来の排泄物処理用無吸水材は、使用するに従って徐々に膨潤するので、消臭性を持続して発揮することができる。 Therefore, the method for producing a non-absorbent material for excrement treatment according to the present invention uses a plant-derived corn starch as a binder, and extrudes while applying pressure of 600 to 800 kgf / cm as a line contact to granulate in a cylindrical shape. Thus, it can be granulated in a columnar shape at room temperature. And the non-absorbent material for excrement treatment according to the present invention obtained by this production method is immersed in physiological saline, taken out after 10 minutes, and after being left for 1 minute, the mass after immersion is 125% or less. The mass after taking out after 20 minutes and leaving it for 1 minute becomes 140% or less before soaking, and the mass after taking out after 30 minutes and leaving it for 1 minute becomes 155% by weight or less before soaking. Has moderate swelling. Such a cypress-derived water-absorbing material for excrement disposal swells gradually as it is used, and thus can maintain its deodorizing performance.
以上、本発明の一実施形態を例示して詳述したが、本発明は上記実施形態に限定されるものではない。本発明は、特許請求の範囲に記載された事項を逸脱することがなければ、種々の設計変更を行うことが可能である。例えば、バインダーに関し、コーンスターチに代えて、固体から液体となることによらず、糊性を発揮することのできる植物由来の各種の澱粉等を用いることができる。 As mentioned above, although one Embodiment of this invention was illustrated and explained in full detail, this invention is not limited to the said embodiment. The present invention can be modified in various ways without departing from the scope of the claims. For example, regarding a binder, it can replace with corn starch and can use various starches derived from a plant which can exhibit paste property, without changing from solid to liquid.
また、植物由来の素材として上記実施形態では、ヒノキを例示して説明したが、木本又は草本の何れを用いることができ、それらの木質又は樹脂の粉砕物、種子油残渣、穀物外皮粉砕物、草本粉砕物などを例示することができる。特に成形性、消臭性能を鑑みれば、スギ科、マツ科又はヒノキ科等の針葉樹の粉砕物を用いることが好ましいといえる。 Moreover, in the said embodiment, although the cypress was illustrated and demonstrated as a plant-derived raw material, either wood or a herb can be used, those woody or resin ground material, seed oil residue, grain skin ground material And herbaceous pulverized material. In particular, in view of moldability and deodorizing performance, it can be said that it is preferable to use a crushed product of conifers such as cedar family, pine family or cypress family.
また、本発明に係る排泄物処理用無吸水材は、製造工程の効率化とコスト低減とを両立させることも目的として創作され、この観点から、構成する成分の混合時の質量比を、特許請求の範囲に記載された事項を逸脱することがなければ、適宜調整することができる。上記実施形態で例示して説明した混合時の質量比は、植物由来の素材である木材（ヒノキ）の質量比を、コスト低減を目的として必要最低限としたときの値を示している。 In addition, the non-absorbent material for excrement treatment according to the present invention was created for the purpose of achieving both efficiency in the manufacturing process and cost reduction, and from this point of view, the mass ratio at the time of mixing the constituent components is patented. Adjustments can be made as appropriate without departing from the scope of the claims. The mass ratio at the time of mixing illustrated and described in the above embodiment indicates a value when the mass ratio of wood (cypress), which is a plant-derived material, is set to the minimum necessary for the purpose of cost reduction.
Claims (2)
前記素材としての粉砕した木材に植物由来の結合剤であるコーンスターチ又は澱粉と、水と、合成樹脂からなる撥水剤を少なくとも加えて混合し、水分を１０〜１５質量％として得た混合物に対し、常温下で、線接触として６００〜８００ｋｇｆ／ｃｍの圧力をかけながら押し出して円柱状に造粒し、造粒して得られた造粒物を水分が３質量％以下になるまで乾燥する工程を含む、
ことを特徴とする排泄物処理用無吸水材の製造方法。 A method for producing a water-absorbing material for excrement disposal for pets containing a plant-derived material as a main component,
With respect to the mixture obtained by adding at least a water-repellent agent made of corn starch or starch, which is a plant-derived binder , water, and a synthetic resin, to the pulverized wood as the material , and mixing the water to 10 to 15% by mass The process of extruding while applying pressure of 600 to 800 kgf / cm as a line contact at room temperature and granulating it into a columnar shape, and drying the granulated product obtained by granulation until the water content is 3% by mass or less. including,
The manufacturing method of the non-absorbent material for excrement disposal characterized by the above-mentioned.
生理食塩水に浸漬し、その１０分経過後に取り出して１分間放置した後の質量が浸漬する前の１２５質量％以下であり、２０分経過後に取り出して１分間放置した後の質量が浸漬する前の１４０質量％以下であり、３０分経過後に取り出して１分間放置した後の質量が浸漬する前の１５５質量％以下であり、かつ、３０分経過後も非崩壊となる、
ことを特徴とする排泄物処理用無吸水材。 A non-absorbent material for excrement treatment obtained using the method for producing a non-absorbent material for excrement treatment according to claim 1,
The mass after dipping in physiological saline and taking out after 10 minutes and leaving it for 1 minute is 125% by mass or less before dipping, before taking out after 20 minutes and leaving it for 1 minute before dipping. 140% by mass or less, the mass after being taken out after 30 minutes and left to stand for 1 minute is 155% by mass or less before immersion, and becomes non-collapsed after 30 minutes.
A non-absorbent material for excrement treatment characterized by the above.
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