JP2007315973A - Simulated feces - Google Patents

Simulated feces Download PDF

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JP2007315973A
JP2007315973A JP2006147323A JP2006147323A JP2007315973A JP 2007315973 A JP2007315973 A JP 2007315973A JP 2006147323 A JP2006147323 A JP 2006147323A JP 2006147323 A JP2006147323 A JP 2006147323A JP 2007315973 A JP2007315973 A JP 2007315973A
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stool
dye
simulated
oil
toilet
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JP4544200B2 (en
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Sataka Kawamoto
早高 川本
Kiyotaka Tanaka
清隆 田中
Hitoshi Kitamura
仁史 北村
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide simulated feces enabling easy fouling evaluation by visualizing an adhesive portion onto a toilet bowl, and capable of reproducing a fouling property similar to feces. <P>SOLUTION: A dye is dissolved and blended beforehand into an oil-and-fat portion and moisture, respectively, in a simulated feces substrate including the oil-and-fat portion, moisture and an organic/inorganic portion. In the simulated feces, at least one or more kinds of oily dyes and aqueous dyes having each different coloring region are blended respectively as the dye. The oily dye is Sudan II, and the aqueous dye is Methylene Blue. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本願発明は、模擬便に関するものである。   The present invention relates to a simulated flight.

大便器の開発では大便による大便器洗浄性の評価が伴う。大便器洗浄性は、大便の硬さ、粘度、形状や比重などの物理的性状の違いにより排泄時あるいは洗浄後の大便器への付着態様が異なり、その洗浄性も変わってくる。したがって、大便器洗浄性の評価の際にはその目的とする大便を準備する必要があるが、その都度準備することは困難である。また、使用する大便が評価毎に異なるため、再現性がなく結果の比較が十分にできないという問題もある。このため、大便器洗浄性の評価を再現性よく実現するためには、粘度や比重などを容易に調整できるようにした模擬便を用いることが必要である。   The development of toilets involves the evaluation of toilet cleanability by stool. The toilet flushability varies depending on the physical properties such as hardness, viscosity, shape and specific gravity of the stool, and the manner of attachment to the toilet bowl after excretion or after washing differs, and the washability also changes. Therefore, it is necessary to prepare the intended stool when evaluating the toilet cleaning performance, but it is difficult to prepare each time. In addition, since the stool to be used is different for each evaluation, there is also a problem that there is no reproducibility and the results cannot be compared sufficiently. For this reason, in order to realize evaluation of toilet flushability with good reproducibility, it is necessary to use a simulated stool that can easily adjust viscosity, specific gravity, and the like.

模擬便としては、従来より、釣魚用配合飼料と穀物と糖類から作製することが知られている(たとえば、特許文献1参照)。この模擬便は、人糞採取の訓練用教材として提案されたもので、採便棒をその模擬便に突き刺した際の感触を実際の大便に似せるようにしている。しかしながら、以上の模擬便の大便器への付着態様は大便と同程度ではなく、大便器の大便器洗浄性の評価用として用いるには、いまだ満足できるレベルではなかった。さらに、大便器洗浄性の評価に際して、別の重要な問題も有していた。すなわち、大便器洗浄性の評価は、洗浄後の大便の大便器への付着の程度から汚れ性を評価するものであるが、上記の模擬便については大便器への付着分が見えにくく、どの程度付着しているか判断できないため、汚れ性を評価することができなかった。
特開平10−319022号公報
As a simulated stool, it is conventionally known to prepare a mixed feed for fishing fish, cereals and sugars (see, for example, Patent Document 1). This simulated stool has been proposed as a training material for human feces collection, and the feeling when a stool collection stick is inserted into the simulated stool is made to resemble an actual stool. However, the manner of attaching the above-mentioned simulated stool to the toilet is not the same as that of the stool, and it was still not at a satisfactory level for use in evaluating the toilet flushability of the toilet. Furthermore, there was another important problem in evaluating toilet cleaning performance. In other words, the evaluation of toilet cleanability is to evaluate the dirtiness from the degree of adhesion of the stool after cleaning to the toilet bowl. Since it was not possible to judge whether it was adhered to a certain extent, the soiling property could not be evaluated.
Japanese Patent Laid-Open No. 10-319022

そこで、本願発明は、以上の通りの背景から、大便器への付着分を可視化して汚れ評価を容易にすることができ、かつ、大便と同様な汚れ性を再現できる模擬便を提供することを課題としている。   Accordingly, the present invention provides a simulated stool capable of visualizing the amount adhered to the toilet and facilitating the evaluation of dirt and reproducing the same dirtiness as stool from the background described above. Is an issue.

本願発明の模擬便は、前記の課題を解決するものとして、第1には、油脂分と水分と有機・無機分とを含む模擬便基質に、染料が配合されていることを特徴とする。   The simulated stool of the present invention is characterized in that, in order to solve the above problems, first, a dye is blended in a simulated stool substrate containing an oil and fat content, moisture, and organic / inorganic content.

また、第2には、上記の模擬便において、染料として、油性染料および水性染料がそれぞれ少なくとも1種類以上配合されていることを特徴とする。   Second, the simulated stool is characterized in that at least one or more oily dyes and aqueous dyes are blended as dyes.

第3には、上記第2の模擬便において、油性染料と水性染料との発色域が異なることを特徴とする。   Thirdly, in the second simulated stool, the colored areas of the oil-based dye and the aqueous dye are different.

第4には、上記第3の模擬便において、油性染料がスダンIIであり、水性染料がメチレンブルーであることを特徴とする。   Fourth, in the third simulated flight, the oil-based dye is Sudan II and the aqueous dye is methylene blue.

第5には、上記第2から第4のいずれかの模擬便において、油性染料および水性染料は、それぞれ油脂分および水分にあらかじめ溶解されて配合されていることを特徴とする。   Fifth, in any one of the second to fourth simulated stools, the oily dye and the aqueous dye are preliminarily dissolved and mixed in an oil and fat component and moisture, respectively.

上記第1の発明によれば、油脂分と水分と有機・無機分とを含む模擬便基質に、染料が配合されていることにより、大便器への付着分を可視化して汚れ評価を容易にすることができ、かつ、大便と同様な汚れ性を再現できる模擬便を得ることができる。   According to the first aspect of the present invention, the dye is mixed with the simulated stool substrate containing the fats and oils, the moisture, and the organic / inorganic contents, so that the adhesion to the toilet can be visualized to easily evaluate the dirt. It is possible to obtain a simulated stool that can reproduce the same dirtiness as the stool.

上記第2の発明によれば、染料として、油性染料および水性染料がそれぞれ少なくとも1種類以上配合されていることにより、油溶性および水溶性の汚れの双方が可視化でき、大便の汚れ性をより忠実に模擬便で再現することができる。   According to the second invention, since at least one oily dye and water-based dye are blended as the dye, both oil-soluble and water-soluble stains can be visualized, and stool stainability is more faithful. It can be reproduced with simulated flights.

上記第3の発明によれば、油性染料と水性染料との発色域が異なることにより、大便器に付着した油脂分とそれ以外の成分とが区別され、より詳細な汚れ評価をおこなうことができる。   According to the third aspect of the present invention, the oil and fat adhering to the toilet and the other components are distinguished from each other by different color development areas of the oil-based dye and the aqueous dye, so that more detailed dirt evaluation can be performed. .

上記第4の発明によれば、油性染料がスダンIIであり、水性染料がメチレンブルーであることにより、大便器に付着した油脂分は赤色、それ以外の成分は青色にそれぞれ染色され、より詳細な汚れ評価をおこなうことができる。また、これらの染料は入手しやすく、扱いやすい。   According to the fourth invention, the oily dye is Sudan II and the aqueous dye is methylene blue, so that the oil and fat adhering to the toilet is dyed red and the other components are dyed blue, respectively. Dirt evaluation can be performed. In addition, these dyes are easily available and easy to handle.

上記第5の発明によれば、油性染料および水性染料は、それぞれ油脂分および水分にあらかじめ溶解されて配合されていることにより、油性染料および水性染料を容易に模擬便に混合することができ、さらには、大便器の汚れ性の評価に際して、大便器の付着分の成分をより効果的に判断することができる。   According to the fifth aspect of the invention, the oily dye and the aqueous dye are preliminarily dissolved and mixed in oil and fat, respectively, so that the oily dye and the aqueous dye can be easily mixed into the simulated stool, Furthermore, when evaluating the dirtiness of the toilet bowl, it is possible to more effectively determine the components attached to the toilet bowl.

本願発明は上記のとおりの特徴をもつものであるが、以下に、その実施の形態について説明する。   The present invention has the features as described above, and the embodiments thereof will be described below.

本願の発明者らは、大便器洗浄性に関して汚れ評価をおこなうに際し、洗浄後の模擬便の大便器への付着分を可視化するとともに、大便と同様な汚れ性を再現するために、染料を模擬便に配合することを見出した。すなわち、本願発明の模擬便は、油脂分と水分と有機・無機分とを含む模擬便基質に、染料が配合されていることを特徴としている。   The inventors of the present application made a dye simulation in order to visualize the adhesion of the simulated stool after washing to the urinal, and to reproduce the same dirtiness as that of the stool, when performing the dirt evaluation on the toilet cleaning performance. It was found to be blended into the stool. That is, the simulated stool of the present invention is characterized in that a dye is blended with a simulated stool substrate containing an oil and fat content, moisture, and an organic / inorganic content.

本願発明における染料は、たとえば、スダン系染料であるスダンI、スダンII、スダンIII、スダンIV、スダンブラック、スダンレッドや、ナイトブルー染色液、オイルレッドOなどの油性染料、メチレンブルー、エオシンメチレンブルー、エオシンなどの水性染料を例示することができる。以上の油性染料は、模擬便基質に含まれる油脂分が大便器に付着したときにその付着分を可視化するものであり、水性染料は、模擬便基質に含まれる油脂分以外の成分、具体的には水分、有機・無機分が大便器に付着した際にその付着分を可視化するものである。大便は、一般的に、油脂分、水分、有機・無機分で構成されているため、大便の汚れ性をより忠実に模擬便で再現するためには、染料として、水性染料と油性染料とをそれぞれ併用することが好ましい。なお、水性染料と油性染料は、それぞれ発色域が異なるものを使用することが考慮される。たとえば、同色の水性染料と油性染料を使用した場合には、大便器で観察された付着分が油脂分であるかどうかがわからず、模擬便のどの成分がどのような態様で付着しているかが不明である。したがって、より詳細な汚れ評価をおこなうには、大便器に付着した油脂分とそれ以外の成分とを区別する必要があり、水性染料と油性染料はそれぞれ異なる発色域のものを使用することが好適である。具体的には、後述の実施例で示したように、油性染料をスダンII、水性染料をメチレンブルーとすることが好ましい態様として例示することができる。   Examples of the dye in the present invention include Sudan I, Sudan II, Sudan III, Sudan IV, Sudan Black, Sudan Red, Night Blue dyeing liquid, Oil Red O, and other oily dyes such as Sudan I, Sudan II, Sudan III, Sudan IV, Eosin Methylene Blue, and Eosin. An aqueous dye such as The above oil-based dye visualizes the amount of oil and fat contained in the simulated stool substrate when it adheres to the toilet bowl, and the aqueous dye is a component other than the fat and oil contained in the simulated stool substrate. When the water, organic / inorganic components adhere to the toilet, the deposits are visualized. Since stool is generally composed of oil, fat, moisture, and organic / inorganic components, water and oil dyes are used as dyes in order to reproduce the stains of stool more faithfully with simulated stool. It is preferable to use each in combination. In addition, it is considered that water-based dyes and oil-based dyes having different color areas are used. For example, when water-based dyes and oil-based dyes of the same color are used, it is not known whether the deposit observed in the toilet bowl is oil or fat, and which component of the simulated stool is attached in what manner Is unknown. Therefore, in order to carry out more detailed soil evaluation, it is necessary to distinguish between the oil and fat adhering to the toilet and other components, and it is preferable to use water-based dyes and oil-based dyes having different color ranges. It is. Specifically, as shown in Examples described later, it is possible to exemplify a preferable embodiment in which the oil-based dye is Sudan II and the aqueous dye is methylene blue.

また、本願発明は、油性染料および水性染料が、それぞれ模擬便基質に含まれる油脂分および水分にあらかじめ溶解されて配合されていることが好ましい。すなわち、油性染料を油脂分に、水洗染料を水分にあらかじめ溶解しておき、これら油脂分と水分を用いて模擬便を製造するものである。これによって、油性染料および水性染料を容易に模擬便に混合することができる。さらに、油性染料および水性染料がそれぞれ油脂分および水分に確実に溶解しているため、大便器の汚れ性の評価に際し、大便器の付着分の成分をより効果的に判断することができる。   In the invention of the present application, it is preferable that the oily dye and the aqueous dye are dissolved and mixed in advance in the fat and oil and water contained in the simulated fecal substrate, respectively. That is, an oily dye is dissolved in oil and fat, and a washing dye is dissolved in water in advance, and simulated feces are produced using these oil and fat and water. As a result, the oily dye and the aqueous dye can be easily mixed into the simulated stool. Furthermore, since the oil-based dye and the water-based dye are surely dissolved in the oil and fat components and moisture, respectively, the components of the toilet toilet deposit can be more effectively determined when evaluating the soiling property of the toilet bowl.

以上の染料の配合量については、大便器への付着分が観察できる程度であればよく、たとえば、油性染料であれば模擬便全体に対して0.01〜0.5重量%、水性染料であれば0.01〜1重量%程度が考慮される。染料の配合量が前記範囲よりも少ない場合には、大便器への付着分を十分に観察することができない場合があるので好ましくない。染料の配合量が前記範囲を超える場合には、可視化という点であまり効果がみられず、コスト面で不利になるため好ましくない。   About the compounding quantity of the above dye, what is necessary is just a grade which can adhere to the toilet bowl. If present, about 0.01 to 1% by weight is considered. If the amount of the dye is less than the above range, it may not be possible to sufficiently observe the amount adhered to the toilet, which is not preferable. When the blending amount of the dye exceeds the above range, the effect is not so much seen in terms of visualization, and it is disadvantageous in terms of cost.

本願発明における模擬便基質は、上述のように油脂分と水分と有機・無機分とを含むものであるが、油脂分としては、大便の付着度合いにより似せるために、たとえば、長鎖脂肪酸および中鎖脂肪酸のうちの少なくともいずれか一方であることが好ましく、両者を併用してもよい。具体的には、長鎖脂肪酸としてはオレイン酸、中鎖脂肪酸としてはオクタン酸を例示することができる。油脂分の配合割合としては、たとえば、模擬便全体に対して1〜10重量%であることが考慮される。実際の大便の成分分析の結果において脂質の比率が6重量%程度であることを考慮すると、模擬便全体に対して4〜8重量%であることが最適である。   The simulated stool substrate in the present invention contains fats and oils, moisture, and organic / inorganic contents as described above. For fats and oils, for example, long chain fatty acids and medium chain fatty acids are used in order to resemble the degree of stool adhesion. It is preferable that it is at least any one of these, and you may use both together. Specifically, oleic acid can be exemplified as the long chain fatty acid, and octanoic acid can be exemplified as the medium chain fatty acid. As a blending ratio of fats and oils, for example, it is considered to be 1 to 10% by weight with respect to the entire simulated stool. Considering that the ratio of lipid is about 6% by weight in the result of the actual component analysis of stool, it is optimal that the ratio is 4 to 8% by weight with respect to the entire simulated stool.

有機分としては、たとえば、小麦粉、ピーナッツ粉、そば粉、山芋粉、大豆粉、みそなどの植物由来のもの、あるいは、これらに模擬便の粘度や硬さを調整する目的で無機分として、二酸化ケイ素(シリカ)を加えたものを例示することができる。有機・無機分の配合割合は、模擬便全体に対して10〜60重量%の割合で配合されることが考慮されるが、実際の大便の成分分析の結果において有機・無機分の比率が20重量%程度であることを考慮すると、好ましくは20〜30重量%、より好ましくは15〜25重量%である。   Organic components include, for example, those derived from plants such as wheat flour, peanut flour, buckwheat flour, yam flour, soybean flour, miso, etc., or inorganic components for the purpose of adjusting the viscosity and hardness of simulated stool. The thing which added silicon (silica) can be illustrated. It is considered that the organic / inorganic content is 10 to 60% by weight based on the entire simulated stool, but the actual stool component analysis results in an organic / inorganic content of 20%. Considering that it is about wt%, it is preferably 20 to 30 wt%, more preferably 15 to 25 wt%.

水分の配合割合については、たとえば模擬便全体に対して40〜90重量%であることが考慮される。実際の大便の成分分析の結果において水分の比率が75重量%程度であることを考慮すると、模擬便全体に対して70〜80重量%、より好ましくは72〜75重量%である。   About the mixing | blending ratio of a water | moisture content, it is considered that it is 40 to 90 weight% with respect to the whole simulation flight, for example. Considering that the ratio of moisture in the actual component analysis of stool is about 75% by weight, it is 70 to 80% by weight, more preferably 72 to 75% by weight based on the entire simulated stool.

次に、大便器洗浄性の汚れ評価を図1に基づいて説明する。   Next, evaluation of toilet cleaning dirt will be described with reference to FIG.

汚れ評価は、模擬便の大便器への付着度合いを実際の大便と同程度にする必要がある。そこで、まず、大便の硬さ、粘度などの物理的性状の違いに着目してその性状を分類すると、1.硬便、2.普通便、3.軟便、4.水様便の4つに分類することができる。ここで、1.硬便とは、便秘ぎみで硬くコロコロした便のことをいい、2.普通便とは、半練り状の便のことをいう。3.軟便とは、半練り状より柔らかい便のことをいい、4.水様便とは、ポタージュや水のような下痢便のことをいう。   In the dirt evaluation, the degree of adhesion of the simulated stool to the toilet is required to be the same as that of the actual stool. Therefore, first, the properties are classified by focusing on the difference in physical properties such as hardness and viscosity of stool. Hard stool, 2. Normal flights, 3. 3. soft stool; There are four types of watery stools. Here, 1. Hard stool refers to stool that is hard and lumpy due to constipation. Ordinary stool means semi-kneaded stool. 3. 3. Soft stool refers to stool that is softer than semi-kneaded. Watery stools are diarrheal stools such as potage and water.

図1に示したように、大便1の大便器2への付着態様は、A〜Dの4つの態様に分類できる。まず、大便1が水没しない部位に付着する場合(A,B)と、水没する部位に付着する場合(C,D)に分け、Aは排泄時に大便1が傾斜面に落下し、その傾斜面に付着する態様、Bは排泄時やおしり洗浄時に飛び散った大便1が傾斜面に付着する態様とした。Cは浮遊した大便1が排出時(大便器洗浄時)に旋回し、こすれて付着する態様とし、Dは沈んだ大便1が排出時(大便器洗浄時にこすれて付着する態様とした。   As shown in FIG. 1, the attachment mode of the stool 1 to the toilet 2 can be classified into four modes A to D. First, the stool 1 is divided into a case where the stool 1 is not submerged (A, B) and a case where the stool 1 is attached to a submerged portion (C, D). A mode of adhering to stool B was a mode in which stool 1 scattered during excretion or butt washing was adhered to the inclined surface. C is a mode in which the suspended stool 1 turns and rubs and adheres when discharged (when the toilet bowl is washed), and D is a mode in which the sunk stool 1 rubs and adheres when discharged (when the toilet bowl is washed).

本願の発明者らの検討の結果、各物理的性状の大便1の大便器2への付着態様は、1.硬便の場合には主にDの態様となり、2.普通便の場合には主にA,CおよびDの態様となることがわかった。また、3.軟便および4.水様便の場合には主にA,BおよびDの態様となることがわかった。このような大便の大便器への各種の付着態様を再現することは、大便器洗浄性に関する汚れ評価をおこなうにあたり重要である。すなわち、以上のような大便の大便器への付着態様を模擬便で再現することができれば、模擬便の大便器における当該箇所の付着度合いを観察することで、汚れを評価することができるのである。したがって、模擬便の作製の際には、大便器への付着度合いを大便と同程度とすることが望ましく、そのためには、目的とする大便の物理的性状にあわせた模擬便とすることが考慮される。本願発明では、上述したようにシリカを適宜量配合し、硬さや粘度を調整した模擬便を得ている。   As a result of the study by the inventors of the present application, the mode of attachment of the stool 1 of each physical property to the toilet 2 is as follows. In the case of hard stool, the mode is mainly D. In the case of ordinary stool, it has been found that A, C and D modes are mainly used. 3. 3. loose stool and In the case of watery stool, it has been found that A, B and D modes are mainly used. It is important to reproduce the various types of adhesion of the stool to the toilet bowl in order to evaluate the dirt regarding the toilet cleaning performance. That is, if the above-described stool adherence to the urinal can be reproduced with a simulated stool, the contamination can be evaluated by observing the degree of adhesion of the stool in the stool. . Therefore, when creating a simulated stool, it is desirable that the degree of adherence to the urinal be the same as that of the stool. To that end, consider using a simulated stool that matches the physical characteristics of the intended stool. Is done. In the present invention, as described above, an appropriate amount of silica is blended to obtain simulated stool having adjusted hardness and viscosity.

本願発明では、以上のように大便器に付着した付着分を可視化してより容易に観察することができるため、より正確な汚れ評価をおこなうことができる。また、着色された面積やその濃さを基に、汚れの度合いを定量的に評価することもできるようになる。   In this invention, since the adhesion part adhering to the toilet bowl can be visualized and observed more easily as mentioned above, more accurate dirt evaluation can be performed. In addition, it is possible to quantitatively evaluate the degree of contamination based on the colored area and its intensity.

以下に実施例を示し、さらに詳しく説明する。もちろん以下の例によって本願発明が限定されることはない。   Hereinafter, examples will be shown and described in more detail. Of course, the present invention is not limited by the following examples.

<実施例1〜7>
表1に示す材料比でみそを所定の容器に入れ、ついで、オクタン酸を入れてよくかき混ぜた。ついで、所定量の純水を上記容器に入れ、塊がなくなるまでよく攪拌し、その後約30分以上放置して模擬便基質を得た。模擬便基質の材料比は、あらかじめ大便(人糞)と模擬便基質の各材料の成分を調査しておき、模擬便と大便の成分比が同程度になるようにした。なお、純水にはメチレンブルーを純水100gに対して0.05gの割合であらかじめ溶解しておき、オクタン酸にはスダンIIをオクタン酸の全重量の50%に相当するオクタン酸10gに対して0.3gの割合であらかじめ溶解しておいた。
<Examples 1-7>
The miso was put in a predetermined container with the material ratio shown in Table 1, and then octanoic acid was added and well mixed. Next, a predetermined amount of pure water was put into the container and stirred well until there was no lump, and then left for about 30 minutes or more to obtain a simulated stool substrate. As for the material ratio of the simulated stool substrate, the components of each material of the stool (human feces) and the simulated stool substrate were investigated in advance so that the component ratio of the simulated stool and the stool was comparable. In addition, methylene blue was previously dissolved in pure water at a ratio of 0.05 g with respect to 100 g of pure water, and sudan II was added in octanoic acid to 10 g of octanoic acid corresponding to 50% of the total weight of octanoic acid. It was previously dissolved at a rate of 0.3 g.

次に、得られた模擬便基質に対し、表2に示す配合量でシリカ(二酸化ケイ素)を混合した後、むらなく攪拌し、大便の物理的性状に似せた模擬便を得た。なお、表2に示したシリカの配合量は模擬便基質100g当たりに添加する量である。また、用いた材料の詳細は以下のとおりである。   Next, after mixing silica (silicon dioxide) with the compounding amount shown in Table 2 to the obtained simulated stool substrate, the mixture was stirred evenly to obtain simulated stool resembling the physical properties of stool. In addition, the compounding quantity of the silica shown in Table 2 is the quantity added per 100 g of simulated stool substrates. The details of the materials used are as follows.

みそ:米みそ
シリカ:アエロジル200(日本アエロジル(株))
Miso: Rice miso Silica: Aerosil 200 (Nippon Aerosil Co., Ltd.)

Figure 2007315973
Figure 2007315973

Figure 2007315973
得られた模擬便をその種類に応じた図1に示したA〜Dの態様で大便器に付着させて、その付着度合いを大便(人糞)と比較して観察した。いずれの場合も、大便器への付着分を良好に観察することができ、かつ、油脂分とそれ以外の成分とを区別して観察できた。また、大便と同様な汚れ評価となることも確認された。
<実施例8>
実施例3において、メチレンブルーの代わりにエオシンエチレンブルーを使用し、汚れ評価をおこなった。この結果、大便器への付着分について、その成分を区別して観察することはやや困難であったものの、付着分そのものは良好に観察することができ、大便と同様な汚れ評価となることも確認された。
<比較例>
表3に示す材料比でみそを所定の容器に入れ、ついで、オレイン酸、オクタン酸を入れてよくかき混ぜた。ついで、所定量の墨汁、純水を上記容器に入れ、塊がなくなるまでよく攪拌し、その後約30分以上放置して模擬便基質を得た。次に、得られた模擬便基質100gに対し、シリカ(二酸化ケイ素)を2gの割合で混合した後、むらなく攪拌して模擬便を得た。
Figure 2007315973
The obtained simulated stool was attached to the urinal in the modes A to D shown in FIG. 1 according to the type, and the degree of adhesion was observed in comparison with stool (human feces). In any case, the amount adhered to the toilet bowl could be observed well, and the fat and oil component and other components could be observed separately. It was also confirmed that the soil evaluation was similar to that of stool.
<Example 8>
In Example 3, eosin ethylene blue was used in place of methylene blue, and stain evaluation was performed. As a result, although it was somewhat difficult to distinguish and observe the components attached to the toilet bowl, the attached components themselves could be observed well, and it was confirmed that the dirt evaluation was similar to that of stool. It was done.
<Comparative example>
Miso was put in a predetermined container with the material ratio shown in Table 3, and then oleic acid and octanoic acid were added and mixed well. Next, a predetermined amount of ink and pure water were put in the container and stirred well until there were no lumps, and then left for about 30 minutes or more to obtain a simulated stool substrate. Next, silica (silicon dioxide) was mixed at a ratio of 2 g to 100 g of the obtained simulated stool substrate, and then stirred uniformly to obtain simulated stool.

Figure 2007315973
上記の模擬便で汚れ評価をおこなったところ、繰り返しテストによって汚れが蓄積されてしまい、大便汚れを再現することができなかった。
Figure 2007315973
When the above-mentioned mock stool was evaluated for dirt, the dirt accumulated by repeated tests could not be reproduced.

大便の物理的性状の違いによる大便器への付着態様を説明するための模式図である。It is a schematic diagram for demonstrating the adhesion aspect to the toilet bowl by the difference in the physical property of a stool.

符号の説明Explanation of symbols

1 大便
2 大便器
1 urinal 2 urinal

Claims (5)

油脂分と水分と有機・無機分とを含む模擬便基質に、染料が配合されていることを特徴とする模擬便。   A simulated stool characterized in that a dye is mixed with a simulated stool substrate containing fats and oils, moisture, and organic and inorganic contents. 染料として、油性染料および水性染料がそれぞれ少なくとも1種類以上配合されていることを特徴とする請求項1に記載の模擬便。   The simulated stool according to claim 1, wherein at least one kind of oily dye and water-based dye are blended as the dye. 油性染料と水性染料との発色域が異なることを特徴とする請求項2に記載の模擬便。   3. The simulated stool according to claim 2, wherein the color development region of the oily dye and the aqueous dye is different. 油性染料がスダンIIであり、水性染料がメチレンブルーであることを特徴とする請求項3に記載の模擬便。   The simulated stool according to claim 3, wherein the oil-based dye is Sudan II and the aqueous dye is methylene blue. 油性染料および水性染料は、それぞれ油脂分および水分にあらかじめ溶解されて配合されていることを特徴とする請求項2から4のいずれかに記載の模擬便。   The simulated stool according to any one of claims 2 to 4, wherein the oily dye and the water-based dye are preliminarily dissolved and mixed in an oil and fat component and moisture, respectively.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236180B2 (en) * 1977-05-31 1987-08-05 Roehm Gmbh
JP2000352101A (en) * 1999-06-14 2000-12-19 Toto Ltd Material for evaluating cleaning performance of sanitary pottery and method for evaluating cleaning performance of sanitary pottery using the material
JP2001061691A (en) * 1999-08-30 2001-03-13 Toto Ltd Material for evaluating cleanability of sanitary ware
JP2003185654A (en) * 2001-10-11 2003-07-03 Kyokuto Seiyaku Kogyo Kk Pseudo-feces and method of controlling accuracy of feces hemoccult test using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236180B2 (en) * 1977-05-31 1987-08-05 Roehm Gmbh
JP2000352101A (en) * 1999-06-14 2000-12-19 Toto Ltd Material for evaluating cleaning performance of sanitary pottery and method for evaluating cleaning performance of sanitary pottery using the material
JP2001061691A (en) * 1999-08-30 2001-03-13 Toto Ltd Material for evaluating cleanability of sanitary ware
JP2003185654A (en) * 2001-10-11 2003-07-03 Kyokuto Seiyaku Kogyo Kk Pseudo-feces and method of controlling accuracy of feces hemoccult test using the same

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