JP4895717B2 - Bath kettle cleaning method - Google Patents

Bath kettle cleaning method Download PDF

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JP4895717B2
JP4895717B2 JP2006218530A JP2006218530A JP4895717B2 JP 4895717 B2 JP4895717 B2 JP 4895717B2 JP 2006218530 A JP2006218530 A JP 2006218530A JP 2006218530 A JP2006218530 A JP 2006218530A JP 4895717 B2 JP4895717 B2 JP 4895717B2
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bathtub
tub
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英二 竹村
崇 葭原
勝三 古本
由起子 高橋
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Nippon Soda Co Ltd
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Description

本発明は、風呂釜の内部を洗浄する風呂釜洗浄方法に関する。   The present invention relates to a bath cleaning method for cleaning the inside of a bath.

家庭の浴槽には風呂釜が連結されており、浴槽内の湯水を風呂釜に吸引して風呂釜で加熱し、加熱された温水を浴槽へ戻すことによって浴槽内の湯水の温度を上昇させる循環式のものが知られている。この種の循環式の風呂釜には、自然循環式のものと強制循環式のものとがある。   A bath tub is connected to the home tub. The hot water in the tub is sucked into the bath tub and heated in the bath tub, and the heated hot water is returned to the tub to increase the temperature of the hot water in the tub. The formula is known. There are natural circulation type and forced circulation type in this kind of circulation type bathtub.

自然循環式の風呂釜では、浴槽に上下2つの穴が設けられ、浴槽に近接して設置された風呂釜と各々の穴とが管で接続されている。風呂釜が燃焼すると加熱された風呂水が上昇して対流が起こり、下穴から風呂釜に低温水が流入し、加熱された高温水が上穴から浴槽に流出する。高温の流出水によって、浴槽を使用する人が火傷を負わないように、流出水が浴槽の中心部へ向かって直進することを妨げるカバーが通常上穴に設置されている。   In the natural circulation bath, the bathtub is provided with two upper and lower holes, and each bath is connected to the bath by being placed close to the bathtub. When the bath is combusted, the heated bath water rises and convection occurs. Low temperature water flows into the bath from the lower hole, and heated hot water flows out from the upper hole to the bathtub. A cover is usually installed in the top hole that prevents the spilled water from going straight toward the center of the bathtub so that the hot spilled water does not burn the tub occupant.

強制循環式の風呂釜の場合は、通常、流出口と流入口が近接して浴槽に設置され、1つのカバーで覆われているため、浴槽内には1つの穴しかないように見え、1つ穴式風呂釜とも通称される。釜燃焼時の風呂水の循環は、風呂釜に設けられたポンプにより強制的に実施されるため、自然循環式と異なり、風呂釜は浴槽から離れた位置に設置することも可能である。近年、強制循環式は風呂釜の主流となっており、中でも、流入温水の温度を検知し、一定温度になると風呂釜の加熱、循環を停止するタイプの風呂釜が多く使用されている。   In the case of a forced circulation bath, the outlet and the inlet are usually installed close to the bathtub and covered with a single cover, so there appears to be only one hole in the bathtub. It is also known as a double-hole bath. Since the circulation of the bath water during the combustion of the kettle is forcibly performed by a pump provided in the kettle, unlike the natural circulation type, the bath kettle can be installed at a position away from the bathtub. In recent years, the forced circulation type has become the mainstream of bath tubs, and among them, there are many types of bath tubs that detect the temperature of inflowing hot water and stop the heating and circulation of the bath tub when it reaches a certain temperature.

自然対流式であるか強制循環式であるかを問わず、どのようなタイプの風呂釜であっても、人が使用すれば、人体由来の皮脂、老廃物、石鹸カス等が風呂釜やそれと浴槽との連結管に付着し、それらの付着物を栄養源とする微生物が繁殖する。微生物が繁殖すると水に不溶性の多糖類が分泌され、それと皮脂等の付着物とが相俟って、湯垢と呼ばれる膜状の有機物が風呂釜や連結管に付着する。湯垢は風呂釜から風呂水への熱伝導を阻害し、燃料効率を低下させると共に、微生物の供給源となり、レジオネラ菌等の微生物による浴槽水の汚染の原因になる。   Regardless of whether it is a natural convection type or a forced circulation type, any type of bath kettle, if used by humans, sebum from the human body, waste products, soap scum, etc. Microorganisms that adhere to the connecting pipe with the bathtub and that use these deposits as nutrients propagate. When microorganisms propagate, insoluble polysaccharides are secreted in water, and together with deposits such as sebum, film-like organic substances called scales adhere to baths and connecting pipes. Scaling hinders heat conduction from the bath to the bath water, lowers the fuel efficiency, becomes a source of microorganisms, and causes contamination of bathtub water by microorganisms such as Legionella bacteria.

自然対流式の風呂釜の洗浄方法としては、例えば、上穴のカバーを外し、ビニールホースを挿入して水道水を勢いよく流入させることによって洗浄する方法がよく知られている。しかし、釜の部分までホースが挿入できず不十分な洗浄しかできない等の欠点があった。また、別の方法として、蛇腹式のプラスチック容器に収納された過炭酸ナトリウムと界面活性剤の混合物に、水を加えスラリー状とした薬剤を、浴槽に温水を張った状態で下穴から風呂釜内に送り込み、数分間放置し付着汚れを除去する方法が知られている。このような方法で用いられる薬剤として、例えば「ジャバ(2つ穴用)」(登録商標)(ジョンソン社製)が市販され、よく知られている。しかし、これらの市販薬剤での効果は弱く、汚れの除去が充分でないため、洗浄後の浴槽使用の際に、残存した汚れが流出し風呂水を汚す現象が起こりやすかった。また、浴槽の縁から下穴までの距離が離れているため、温水を張った状態で人の手でジャバラを操作して薬剤を送り込む作業は困難であり、加えて、下穴から薬剤を送り込む際に、上穴から流出した薬剤が作業中の作業者の目等に入る可能性があるため、危険な作業でもあった。   As a method for cleaning a natural convection bath, for example, a method of cleaning by removing the cover of the upper hole, inserting a vinyl hose, and allowing tap water to flow in vigorously is well known. However, there is a drawback that the hose cannot be inserted up to the hook and only insufficient cleaning can be performed. Another method is to add a slurry agent by adding water to a mixture of sodium percarbonate and a surfactant contained in a bellows type plastic container. A method is known in which it is fed into the interior and left for a few minutes to remove the adhered dirt. As a drug used in such a method, for example, “Java (for two holes)” (registered trademark) (manufactured by Johnson) is commercially available and well known. However, the effects of these commercially available chemicals are weak and the removal of dirt is not sufficient, so that when the bathtub is used after washing, the residual dirt tends to flow out and stain the bath water. In addition, because the distance from the edge of the bathtub to the pilot hole is far away, it is difficult to operate the bellows with human hands while hot water is applied, and in addition, the drug is sent from the pilot hole. At this time, since the medicine that has flowed out of the upper hole may enter the eyes of the worker who is working, it is a dangerous work.

1つ穴式の風呂釜は、流入口(吸引口)・流出口(吐出口)が一つのカバーで覆われているので、ホース等の挿入による洗浄は不可能である。強制循環式の風呂釜の洗浄方法としては、浴槽に水を張り、この水に過炭酸ナトリウム、アルカリ剤、界面活性剤等を含む薬剤を溶かし、風呂釜に着火し、薬剤が溶解した風呂水を風呂釜内に循環させることによって、風呂釜内の汚れを除去する方法が知られている。このような方法で用いられる薬剤として、例えば「ジャバ(1つ穴用)」(登録商標)(ジョンソン社製)が市販され、よく知られている。しかし、この方法では、200〜300Lもの風呂水全体に薬剤を溶解させる必要があり、その結果薬剤濃度が低くなるため、汚れの除去効果は不十分なものであった。また、風呂釜の洗浄後に排水することになる薬剤の量が多いため、浄化槽等に悪影響を与えるとともに、洗浄後に風呂釜内に残存した薬剤を洗い流すためには浴槽に新たな水を再度張り込む必要があり、面倒かつ不経済な作業を行う必要があった。   A single-hole bath has an inflow port (suction port) and an outflow port (discharge port) covered with a single cover, so it cannot be cleaned by inserting a hose or the like. As a method of cleaning the forced circulation bath, the bath is filled with water, a chemical containing sodium percarbonate, an alkaline agent, a surfactant, etc. is dissolved in this water, the bath is ignited, and the bath water in which the chemical is dissolved is dissolved. There is known a method of removing dirt in the bath by circulating the water in the bath. As a drug used in such a method, for example, “Java (for one hole)” (registered trademark) (manufactured by Johnson Co., Ltd.) is commercially available and well known. However, in this method, it is necessary to dissolve the drug in the whole 200 to 300 L of bath water. As a result, the drug concentration is lowered, and thus the effect of removing dirt is insufficient. In addition, there is a large amount of chemicals to be drained after washing the bath tub, which has an adverse effect on the septic tank, etc., and in order to wash away the drug remaining in the bath tub after washing, new water is refilled in the bathtub. It was necessary, and it was necessary to perform troublesome and uneconomical work.

風呂釜の洗浄を簡便かつより効果的に行うための風呂釜洗浄用具が提案されている。例えば、特許文献1には、浴槽の壁面に風呂釜の穴の周囲を囲む様に容器を設置し、液状の洗浄液を設置した容器を介して風呂釜に流し込み、かつ風呂釜に着火し洗浄液を容器を介して循環させ風呂釜に付着した汚れを除去し、洗浄後は洗浄用具を浴槽の壁面からとり外し、洗浄液を廃棄し、ホースからの水道水で流入穴、流出穴と浴槽を洗浄する洗浄用具および洗浄方法が記載されている。また、特許文献1には、人の手で洗浄用具を浴槽壁面に押し付けて設置する方法に加えて、シール部に吸盤構造を備えその吸着力により洗浄用具を浴槽壁面に設置する方法が記載されている。この風呂釜洗浄用具を用いれば、高濃度の洗浄液を風呂釜内に循環させることができ、洗浄剤を有効に利用することができるものの、内部に充填した洗浄液が漏出しないように洗浄用具を隙間なく浴槽の壁面に密着させなければならない。また、風呂釜を作動させた状態で洗浄液を循環させなければならないが、容器の容量が小さいとすぐに洗浄液の温度が上昇して短時間で循環が停止してしまう。ある程度の時間循環を継続させるためには、洗浄用具の容量を大きくして多量の洗浄液が充填できるようにしなければならないが、そのように大容量化すると洗浄液の自重で洗浄用具が脱落しやすくなり、かつ浴槽の壁面との間からの漏出量も増加する。特に2つ穴式の風呂釜の洗浄に用いると、吐出口から吐出される洗浄液の温度が高く、その高温の洗浄液がこぼれて作業者にかかると危険である。   A bath tub cleaning tool has been proposed for simply and more effectively cleaning the tub. For example, in Patent Document 1, a container is installed on the wall of a bathtub so as to surround the periphery of the hole of the bath, and the bath is poured into the bath through a container in which a liquid cleaning liquid is installed, and the bath is ignited and the cleaning liquid is ignited. Circulate through the container to remove the dirt adhering to the bath tub. After cleaning, remove the cleaning tool from the wall surface of the bathtub, discard the cleaning solution, and wash the inflow hole, outflow hole and bathtub with tap water from the hose. A cleaning tool and a cleaning method are described. Further, Patent Document 1 describes a method of installing a cleaning tool on a bathtub wall surface with a suction cup structure provided in a seal portion in addition to a method of pressing the cleaning tool against a bathtub wall surface by a human hand. ing. If this bath tub cleaning tool is used, it is possible to circulate a high-concentration cleaning liquid in the bath tub and effectively use the cleaning agent. However, the cleaning tool is placed in a gap so that the cleaning liquid filled inside does not leak. It must be in close contact with the bathtub wall. Further, the cleaning liquid must be circulated while the bath tub is in operation, but if the capacity of the container is small, the temperature of the cleaning liquid immediately rises and the circulation stops in a short time. In order to continue circulation for a certain period of time, it is necessary to increase the capacity of the cleaning tool so that a large amount of cleaning liquid can be filled. However, if the capacity is increased in this way, the cleaning tool tends to fall off due to its own weight. And the amount of leakage from the wall of the bathtub also increases. In particular, when used for cleaning a two-hole bath, the temperature of the cleaning liquid discharged from the discharge port is high, and it is dangerous if the high-temperature cleaning liquid is spilled and applied to the operator.

また、特許文献2には、速溶性過炭酸ナトリウムとジシアンジアミドからなる風呂釜洗浄剤組成物が記載されている。さらに、特許文献3には、過炭酸ナトリウムを75〜135℃で加熱処理することにより、水に投入した際にガスを発生し、短時間で溶解する過炭酸ナトリウムとこの過炭酸ナトリウムに界面活性剤等を添加した発泡性漂白剤組成物が記載されている。また、特許文献4には、粉末状過炭酸ナトリウムに非イオン界面活性剤0.01〜0.5重量%を添加混合し、これを80〜140℃で加熱処理した浮上発泡性過炭酸ナトリウムの製造方法が記載されている。特許文献4には、この浮上発泡性過炭酸ナトリウムは、風呂釜洗浄剤等の用途に利用出来る旨記載されている。   Patent Document 2 describes a bath tub cleaning composition comprising fast-dissolving sodium percarbonate and dicyandiamide. Furthermore, in Patent Document 3, sodium percarbonate is heated at 75 to 135 ° C. to generate a gas when it is put into water, and the sodium percarbonate that dissolves in a short time and the surface activity to this sodium percarbonate. An effervescent bleaching composition to which an agent or the like is added is described. In Patent Document 4, non-ionic surfactant 0.01 to 0.5% by weight is added to and mixed with powdered sodium percarbonate, and this is heat-treated at 80 to 140 ° C. A manufacturing method is described. Patent Document 4 describes that this floatable foamable sodium percarbonate can be used for applications such as bath tub cleaning agents.

また、特許文献5には過炭酸ナトリウムと過ホウ酸ナトリウムにメタケイ酸ナトリウム等のケイ酸アルカリ化合物を配合したアルミニウムを使用した風呂釜への腐食を低減した風呂釜洗浄剤が記載されており、過炭酸ナトリウムとの配合の際の保存安定性を向上させるためケイ酸アルカリを重炭酸ナトリウムや硫酸ナトリウムと混合造粒した顆粒として配合する組成物も記載されている。   Patent Document 5 describes a bath cleaning agent that reduces corrosion to a bath using aluminum in which sodium percarbonate and sodium perborate are mixed with an alkali silicate compound such as sodium metasilicate. In order to improve the storage stability when blended with sodium percarbonate, a composition is also described in which alkali silicate is blended as granules granulated with sodium bicarbonate or sodium sulfate.

また、特許文献2には、速溶性過炭酸ナトリウム、ジシアンジアミドを含有する風呂釜洗浄剤の漂白洗浄力をさらに向上させるために該風呂釜洗浄剤にプロテアーゼ、リパーゼ等の酵素を添加することが記載されている。   Patent Document 2 describes that an enzyme such as protease or lipase is added to the bath cleaning agent in order to further improve the bleaching detergency of the bath cleaning agent containing fast-dissolving sodium percarbonate and dicyandiamide. Has been.

また、ボイラーや湯沸し等の高温水と接触する器材には、水中に溶解していた炭酸カルシウム等の無機物が析出して付着し、スケールを形成することが知られている。しかし、風呂釜内の湯温は40℃程度であって、風呂釜内の温度も、ボイラー等と比較して比較的低温であるため、風呂釜内に炭酸カルシウムのスケールが付着することは問題とされていなかった。そのため、炭酸カルシウムのスケールの除去を目的とする風呂釜洗浄剤はこれまで知られていなかった。   Further, it is known that inorganic materials such as calcium carbonate dissolved in water precipitate and adhere to an equipment that comes into contact with high-temperature water such as a boiler or a kettle to form a scale. However, since the temperature in the bath is about 40 ° C. and the temperature in the bath is relatively low compared to a boiler, etc., it is problematic that calcium carbonate scales adhere to the bath. It was not. For this reason, a bath cleaner for the purpose of removing the scale of calcium carbonate has not been known so far.

特開平8−159695号公報JP-A-8-159695 特開平11−61193号公報JP 11-61193 A 特開昭50−70286号公報Japanese Patent Laid-Open No. 50-70286 特開昭59−195505号公報JP 59-195505 A 特開昭55−7851号公報JP 55-7851 A

上述のような状況下、本発明者らは、浴槽内の湯水を吸引して風呂釜に導く吸引口と、風呂釜で加熱された湯水を浴槽に吐出する吐出口とを備えた浴槽に、これら吸引口と吐出口とを覆うようにしてセットされ、洗浄剤が溶解された洗浄水を少なくとも吸引口の開口部分に保持し、洗浄水が風呂釜に吸引されるようにした風呂釜洗浄用具において、吸引口と吐出口とが水没するように湯水が張られた浴槽の壁面にセットされた状態で上部に形成した洗浄剤投入口が水面上に開口することを特徴とする風呂釜洗浄用具を提案している(特願2005―038976号参照)。本発明による風呂釜洗浄用具は、浴槽に湯水を張った状態で使用するので、浴槽の水を排出した状態で使用する特許文献1の物と比較して、風呂釜洗浄用具が浴槽の壁面から脱落しづらく、かつ内部の湯水の漏出も少ないので、作業者が洗浄作業中、風呂釜洗浄用具を手で保持し続ける必要がない。   Under the circumstances as described above, the present inventors, in a bathtub provided with a suction port that sucks hot water in the bathtub and leads it to the bath, and a discharge port that discharges hot water heated in the bath to the bathtub, A bath tub cleaning tool that is set so as to cover the suction port and the discharge port, holds cleaning water in which the cleaning agent is dissolved at least in the opening portion of the suction port, and allows the cleaning water to be sucked into the bath tub. In this case, a cleaning agent charging port formed on the upper surface in a state where the suction port and the discharge port are set on the wall surface of a bathtub in which hot water is stretched so that the suction port and the discharge port are submerged opens above the water surface. (See Japanese Patent Application No. 2005-038976). Since the bath tub cleaning tool according to the present invention is used in a state in which hot water is stretched in the bathtub, the bath tub cleaning tool is removed from the wall surface of the bathtub as compared with the one of Patent Document 1 used in a state where the water in the bathtub is discharged. Since it is difficult to drop off and there is little leakage of the hot water inside, it is not necessary for the operator to keep holding the bath tub cleaning tool by hand during the cleaning operation.

特許文献1の風呂釜洗浄用具を用いる洗浄液は適当な濃度の薬液をあらかじめ調整し、空の洗浄用具を通して風呂釜内に流し込むため、洗浄剤は水に溶解するものであれば、その剤形は問題ではなく、若干溶解性が悪い洗浄剤であっても使用可能であるが、特願2005―038976号の風呂釜洗浄用具の場合はあらかじめ風呂釜と洗浄用具には水が張られた状態であるため使用される洗浄剤は低温度の水に容易に溶解し、風呂釜内の水と均一混合した際に一定の洗浄剤の濃度を確保できる高濃度の洗浄液を用具内に充填できるものでなくてはならない。
洗浄剤が液体の場合は水と均一混合が容易であるが特願2005―038976号の風呂釜洗浄用具は用具内部の液面が浴槽の液面より高くなった場合は用具内部の液が浴槽に流出する構造となっているため、洗浄剤の濃度は高濃度でなければならず、洗浄剤の濃度が低く用具に注入する洗浄剤の体積が大きな場合は用具内に注入された洗浄剤一部または大部分が用具内の水と一緒に用具外に流出してしまうことになる。
The cleaning solution using the bath tub cleaning tool of Patent Document 1 is prepared in advance with a chemical solution of an appropriate concentration and poured into the bath tub through an empty cleaning tool. If the cleaning agent is soluble in water, the dosage form is This is not a problem, and it is possible to use a cleaning agent with slightly poor solubility. However, in the case of the bath tub cleaning tool of Japanese Patent Application No. 2005-038976, the bath tub and the cleaning tool are pre-filled with water. Therefore, the cleaning agent used can be easily dissolved in low-temperature water and can be filled with a high-concentration cleaning solution that can ensure a certain concentration of cleaning agent when uniformly mixed with the water in the bath. Must-have.
If the cleaning agent is a liquid, it can be easily mixed with water. However, the bath cleaning tool disclosed in Japanese Patent Application No. 2005-038976 has a higher liquid level in the tub than the liquid level in the tub. Therefore, if the concentration of the cleaning agent is low and the volume of the cleaning agent to be injected into the tool is large, the cleaning agent injected into the tool Part or most of it will flow out of the tool together with the water in the tool.

特願2005―038976号の風呂釜洗浄用具に使用する洗浄剤は用具内の水に添加しても用具内の液面の上昇が少ない粉末又は顆粒の洗浄剤が好ましく使用されるが、特許文献1に記載の洗浄用具に使用する粉末または顆粒状の洗浄剤はあらかじめ溶解が容易にできる別容器で溶解してから空の用具内に注入可能であるため溶解性が悪い洗浄剤でも使用可能であるが、特願2005―038976号の風呂釜洗浄用具に使用する粉末または顆粒状の洗浄剤は、用具外で溶解してから用具内に注入することは前述の液体洗浄剤と同様の理由で困難であり、あらかじめ水の張られた用具内に投入した際に用具内の水に容易に溶解し、風呂釜内の水と均一混合しても有効な洗浄剤濃度が維持できる高濃度の洗浄液を用具内に形成できるものでなくてはならない。   The cleaning agent used in the bath tub cleaning tool of Japanese Patent Application No. 2005-038976 is preferably a powder or granule cleaning agent that does not increase the liquid level in the tool even when added to the water in the tool. The powder or granular detergent used in the cleaning tool described in 1 can be poured into an empty tool after being dissolved in a separate container that can be easily dissolved in advance. However, the powder or granular detergent used in the bath tub cleaning tool of Japanese Patent Application No. 2005-038976 is dissolved outside the tool and then injected into the tool for the same reason as the liquid detergent described above. A highly concentrated cleaning solution that is difficult to dissolve in the water in the tool when it is put in water in advance and can maintain an effective cleaning agent concentration even when mixed uniformly with the water in the bath. Can be formed in the tool MUST NOT.

風呂釜の洗浄剤としては従来から使用されている過炭酸ナトリウムは風呂釜の主たる汚れである有機性の湯垢の除去に優れた効果を示すが、通常漂白剤や洗浄剤として使用されている顆粒品は特願2005―038976号の風呂釜洗浄用具内の水に投入して使用した場合は顆粒が用具の底に沈んでしまい、加熱循環しても大部分は溶解しないため十分な効果を発揮できない。また、洗浄剤を投入後に攪拌棒等で攪拌しても、用具の開口面積があまり広くなく、底までの水深が深いため用具の底に沈んだ洗浄剤の溶解は面倒かつ困難な作業である。特に強制循環式の風呂釜においては浴槽の湯水の吸入、排出口には大きなカバーが突起状態で設置されており、開口部からの攪拌を困難にしている。   Sodium percarbonate, which has been used as a cleaning agent for bath tubs, has an excellent effect on removing organic scales, which are the main dirt of bath tubs, but is usually used as a bleaching agent or cleaning agent. When the product is used by putting it in the water in the bath tub cleaning tool of Japanese Patent Application No. 2005-038976, the granule sinks to the bottom of the tool, and most of it does not dissolve even when heated and circulated. Can not. In addition, even if stirring is performed with a stirring rod after the cleaning agent has been added, the opening area of the tool is not so large, and the depth of water to the bottom is deep, so it is troublesome and difficult to dissolve the cleaning agent that sinks to the bottom of the tool. . Particularly in a forced circulation bath, a large cover is provided in a protruding state at the inlet and outlet of hot water in the bathtub, making stirring from the opening difficult.

粉末状の過炭酸ナトリウムを使用すると溶解性はかなり速くなるが、用具の底に粉末が沈む現象は完全には解決されず、かつ保存時の安定性が悪くなるとともに、使用時の粉立ちが多くなり使用者の安全が脅かされるため家庭用に使用する風呂釜洗浄剤としては好ましくない。   When powdered sodium percarbonate is used, the solubility is considerably faster, but the phenomenon of powder sinking to the bottom of the tool is not completely solved, and stability during storage is poor, and powdering during use is reduced. Since it increases the safety of the user, it is not preferable as a bath cleaning agent for household use.

特許文献2には、速溶性過炭酸ナトリウムとジシアンジアミドからなる風呂釜洗浄剤組成物が記載されている。しかし、速溶性過炭酸ナトリウムとして規定されている過炭酸ナトリウムは、20℃の水1リットルに攪拌状態で5gの薬剤を投入した際に溶解するまでに160秒程度を要する過炭酸ナトリウムであり、特願2005−038976号の風呂釜洗浄用具用の風呂釜洗浄剤としては溶解が遅く使用は困難である。また、特許文献3の過炭酸ナトリウムは、漂白剤として開示されているだけである。さらに、特許文献4には、粉末状過炭酸ナトリウムと非イオン界面活性剤との混合物を加熱処理して得られる浮上発泡性過炭酸ナトリウムが記載されている。この組成物は過炭酸ナトリウムが容器の底に沈むことなく溶解する点では特願2005−038976号の風呂釜洗浄用具用の過炭酸ナトリウムとして適しているが、界面活性剤による泡の発生量が多すぎるため組成物を用具内に投入した際や洗浄のために風呂釜内に薬液を循環させた際の発泡により用具内の薬液が泡として薬剤投入口から用具外に流出してしまう欠点を有している。   Patent Document 2 describes a bath tub cleaning composition comprising fast-dissolving sodium percarbonate and dicyandiamide. However, sodium percarbonate, which is defined as fast-dissolving sodium percarbonate, is sodium percarbonate that requires about 160 seconds to dissolve when 5 g of drug is added to 1 liter of water at 20 ° C. with stirring. As a bath tub cleaning agent for a bath tub cleaning tool of Japanese Patent Application No. 2005-038976, dissolution is slow and difficult to use. Moreover, the sodium percarbonate of patent document 3 is only disclosed as a bleaching agent. Furthermore, Patent Document 4 describes floating foaming sodium percarbonate obtained by heat-treating a mixture of powdered sodium percarbonate and a nonionic surfactant. This composition is suitable as sodium percarbonate for bath tub cleaning tools of Japanese Patent Application No. 2005-038976 in that sodium percarbonate dissolves without sinking to the bottom of the container, but the amount of foam generated by the surfactant is small. When there is too much composition in the tool or when the chemical is circulated in the bath for cleaning, the chemical solution in the tool flows out of the tool from the drug inlet as foam due to foaming. Have.

本発明の課題は、有機物の分解作用、微生物の殺菌作用及び膜状物の剥離作用に優れた風呂釜洗浄剤を用いて、安全かつ簡易に、そして効果的に風呂釜内の洗浄を行う風呂釜洗浄方法を提供することにある。また、風呂釜内における炭酸カルシウム等のスケールも同時に除去することができる風呂釜洗浄方法を提供することにある。   An object of the present invention is to provide a bath that safely, easily, and effectively cleans the inside of a bath using a bath cleaning agent that is excellent in the decomposition of organic matter, the sterilization of microorganisms, and the release of membranes. It is to provide a kettle cleaning method. It is another object of the present invention to provide a bath cleaning method capable of simultaneously removing scales such as calcium carbonate in the bath.

本発明者らは、上記課題を解決するために鋭意検討し、従来公知の様々な物質の中から、特願2005―038976号等の風呂釜洗浄用具に好適に使用し得る洗浄剤を探索した結果、発泡性過炭酸ナトリウムが、有機物の分解作用、微生物の殺菌作用及び膜状物の剥離作用に優れており、かつ、前述の風呂釜洗浄用具等に好適に使用し得ることを見い出し、これを用いて風呂釜内の洗浄を行うことにより、安全かつ簡易に、さらに、少量の洗浄剤で効果的に風呂釜内を洗浄することができることを見い出し、本発明を完成するに至った。また、風呂釜内に炭酸カルシウム等の無機物のスケールが付着していることをつきとめ、これを酸性物質によって除去することにより、極めて効果的に洗浄することができることを見い出し、本発明を完成するに至った。   The present inventors diligently studied to solve the above problems, and searched for a cleaning agent that can be suitably used for a bath tub cleaning tool such as Japanese Patent Application No. 2005-038976 among various conventionally known substances. As a result, it has been found that effervescent sodium percarbonate is excellent in the decomposition action of organic substances, the sterilization action of microorganisms and the peeling action of film-like substances, and can be suitably used for the above-mentioned bath tub cleaning tool, etc. The present inventors have found that the inside of a bath can be cleaned safely and simply by using a small amount of the detergent, and that the inside of the bath can be effectively washed with a small amount of a cleaning agent, thereby completing the present invention. In addition, it is found that inorganic scale such as calcium carbonate adheres to the inside of the bath tub, and that it can be cleaned very effectively by removing it with an acidic substance to complete the present invention. It came.

すなわち本発明は、[1]少なくとも風呂水出入穴が水没する水位まで風呂水を浴槽内に張った状態で、風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接する洗浄用具設置工程と、風呂釜洗浄用具で区画された風呂水に、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aを投入して風呂釜を洗浄する洗浄工程Aと、を含むことを特徴とする風呂釜洗浄方法や、[2]風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接する洗浄用具設置工程と、少なくとも風呂水出入穴が水没する水位まで風呂水を浴槽内に張る水張工程と、風呂釜洗浄用具で区画された風呂水に、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aを投入して風呂釜を洗浄する洗浄工程Aと、を含むことを特徴とする風呂釜洗浄方法や、[3]風呂釜洗浄用具で区画された風呂水に、酸性物質を含有する風呂釜洗浄剤Bを投入して風呂釜を洗浄する洗浄工程Bを含むことを特徴とする上記[1]又は[2]に記載の風呂釜洗浄方法に関する。   In other words, the present invention provides [1] a bathing pot so that the bath water entrance / exit hole is divided into a predetermined volume around the bath water entrance / exit hole in a state where the bath water is stretched in the bathtub to a level at which the bath water entrance / exit hole is submerged. A cleaning tool installation process in which the cleaning tool is brought into contact with the wall surface of the bathtub, and a cleaning in which the bath tub cleaning agent A containing foamable sodium percarbonate is added to the bath water partitioned by the bath tub cleaning tool to clean the bath tub. A bath tub cleaning method characterized by including the step A, and [2] a bath tub cleaning tool is brought into contact with a wall surface of the tub so as to divide the periphery of the bath water entrance / exit hole inside the tub into a predetermined volume Bathing bath containing foaming sodium percarbonate in bathing water partitioned by bathing water cleaning process, bathing water partitioned into bathing bath cleaning tools, water bathing process in which bath water is stretched in the bathtub until at least the water level where bath water access holes are submerged Washing with washing agent A to wash the bath A bath cleaning method characterized by comprising a cleaning step A; and [3] bath bath cleaning agent B containing an acidic substance in bath water partitioned by bath bath cleaning tools. The present invention relates to the method for cleaning a bath according to the above [1] or [2], including a cleaning step B for cleaning.

また本発明は、[4]洗浄工程Aの後に洗浄工程Bを行うことを特徴とする上記[3]に記載の風呂釜洗浄方法や、[5]洗浄工程Bの後に洗浄工程Aを行うことを特徴とする上記[3]に記載の風呂釜洗浄方法や、[6]洗浄工程Aが、投入された風呂釜洗浄剤Aを風呂釜内に強制的に循環させる循環工程Aを含むことを特徴とする上記[1]〜[5]のいずれかに記載の風呂釜洗浄方法に関する。   [4] The bath cleaning method according to [3] above, wherein [4] the cleaning step A is performed after the cleaning step A, and [5] the cleaning step A is performed after the cleaning step B. The bath tub cleaning method as described in [3] above, and [6] The cleaning step A includes a circulation step A for forcibly circulating the introduced bath tub cleaning agent A into the bath tub. The present invention relates to the bath cleaning method according to any one of [1] to [5] above.

さらに本発明は、[7]自然循環式風呂釜の洗浄方法であって、洗浄工程Aが、投入された風呂釜洗浄剤Aを風呂釜内に拡散させる拡散工程Aを含むことを特徴とする上記[1]〜[5]のいずれかに記載の風呂釜洗浄方法や、[8]洗浄工程Aが、拡散工程Aの後に行われる風呂釜洗浄剤Aを風呂釜内に強制的に循環させる循環工程A’を含むことを特徴とする上記[7]に記載の風呂釜洗浄方法や、[9]拡散工程Aにおける風呂水の温度が、35〜45℃であることを特徴とする上記[7]又は[8]に記載の風呂釜洗浄方法に関する。   Furthermore, the present invention is [7] a method for cleaning a natural circulation bath, wherein the cleaning step A includes a diffusion step A for diffusing the charged bath cleaner A into the bath. The bath cleaning method according to any one of [1] to [5] above, and [8] The cleaning step A forcibly circulates the bath cleaning agent A performed after the diffusion step A in the bath. The bath cleaning method according to [7] above, which includes a circulation step A ′, and [9] the temperature of bath water in the diffusion step A is 35 to 45 ° C. [7] or [8].

またさらに本発明は、[10]洗浄工程Aが、清浄な水を投入して、風呂釜内の風呂釜洗浄剤Aを洗い流す水洗工程Aを含むことを特徴とする上記[1]〜[9]のいずれかに記載の風呂釜洗浄方法や、[11]洗浄工程Bが、投入された風呂釜洗浄剤Bを風呂釜内に強制的に循環させる循環工程Bを含むことを特徴とする上記[3]〜[10]のいずれかに記載の風呂釜洗浄方法や、[12]洗浄工程Bが、清浄な水を投入して、風呂釜内の風呂釜洗浄剤Bを洗い流す水洗工程Bを含むことを特徴とする上記[3]〜[11]のいずれかに記載の風呂釜洗浄方法に関する。   Furthermore, the present invention provides [10] The above-mentioned [1] to [9], wherein [10] the cleaning step A includes the water washing step A in which clean water is poured to wash away the bath tub cleaning agent A in the bath tub. [11] The bath cleaning method according to any one of the above, and [11] The cleaning step B includes the circulation step B forcibly circulating the charged bath cleaner B into the bath. [3] to [10] The bath washing method according to any one of [10] and [12] Washing step B is a washing step B in which clean water is poured to wash away the bath kettle cleaning agent B in the bath. The bath cleaning method according to any one of [3] to [11] above, wherein

本発明の風呂釜洗浄方法によれば、安全かつ簡易に、そして効果的に風呂釜内の洗浄を行うことができる。本発明の風呂釜洗浄方法は、家庭で使用されるだけでなく、業者が施設に設置された風呂釜を洗浄する際にも使用されるものであり、産業上の利用可能性を有するものである。   According to the bath tub cleaning method of the present invention, the inside of the bath tub can be cleaned safely, easily and effectively. The bath tub cleaning method of the present invention is used not only at home, but also when a contractor cleans a bath tub installed in a facility, and has industrial applicability. is there.

本発明の風呂釜洗浄方法としては、少なくとも風呂水出入穴が水没する水位まで風呂水を浴槽内に張った状態で、風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接する洗浄用具設置工程と、風呂釜洗浄用具で区画された風呂水に、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aを投入して風呂釜を洗浄する洗浄工程Aとを含む方法(第1洗浄方法)や、風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接する洗浄用具設置工程と、少なくとも風呂水出入穴が水没する水位まで風呂水を浴槽内に張る水張工程と、風呂釜洗浄用具で区画された風呂水に、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aを投入して風呂釜を洗浄する洗浄工程Aとを含む方法(第2洗浄方法)であれば特に制限されるものではなく、本発明の風呂釜洗浄方法は、自然循環式風呂釜(2つ穴式風呂釜)及び強制循環式風呂釜(1つ穴式風呂釜)の洗浄に用いることができ、自然循環式風呂釜の洗浄に特に好ましく用いられる。   In the bath tub cleaning method of the present invention, at least the bath water inlet / outlet hole is submerged into a predetermined volume in the state where the bath water is stretched in the bathtub to a level where the bath water inlet / outlet hole is submerged. A cleaning tool installation process in which the bath tub cleaning tool is brought into contact with the wall surface of the bathtub, and bath tub cleaning agent A containing foaming sodium percarbonate is added to the bath water partitioned by the bath tub cleaning tool to clean the bath tub. Cleaning method A including a cleaning step A (first cleaning method), or a cleaning tool installation step in which the bath tub cleaning tool abuts against the wall surface of the bathtub so as to divide the periphery of the bath water inlet / outlet inside the bathtub into a predetermined volume And bathing water cleaning agent A containing effervescent sodium percarbonate to the bath water partitioned with bathing utensil cleaning tools and bathing water bathing process in which bathing water is stretched in the bathtub until at least the bathing water entrance / exit hole is submerged A cleaning worker who puts in and cleans the bath If it is a method (2nd washing | cleaning method) including A, it will not restrict | limit in particular, The bath cleaning method of this invention is a natural circulation bath (two-hole type bath) and a forced circulation bath It can be used for cleaning (one-hole bath) and is particularly preferably used for cleaning natural circulation baths.

本発明の風呂釜洗浄方法によれば、風呂釜洗浄用具で風呂水出入穴の浴槽内部側の周囲を所定の容積に区画して、かかる区画された風呂水に風呂釜洗浄剤を投入して洗浄を行うので、少量の風呂釜洗浄剤でも洗浄に有効な濃度を確保でき、安全かつ簡易に、効果的に風呂釜の洗浄を行うことができる。   According to the bath tub cleaning method of the present invention, a bath tub cleaning tool is used to divide the periphery of the bath water entrance / exit hole into a predetermined volume, and a bath tub cleaner is poured into the partitioned bath water. Since cleaning is performed, a concentration effective for cleaning can be ensured even with a small amount of bath cleaner, and the bath can be cleaned safely, easily and effectively.

本発明の第1洗浄方法においては、例えば、入浴後の残り湯を張った状態で、風呂釜洗浄用具を設置することができ(洗浄用具設置工程)、入浴後の残り湯を無駄なく使用することができるので、湯水を節約することができ、非常に経済的である。また、入浴後、数時間以内に風呂釜を洗浄することにより、風呂水が比較的高い温度であることから、風呂釜洗浄剤の溶解、拡散や、湯垢と風呂釜洗浄剤の反応を促し、より高い洗浄効果を期待することができる。   In the first cleaning method of the present invention, for example, a bath tub cleaning tool can be installed in a state where the remaining hot water after bathing is stretched (cleaning tool installation step), and the remaining hot water after bathing can be used without waste. Because it can save hot water, it is very economical. In addition, by washing the bath within a few hours after bathing, the bath water is at a relatively high temperature, so that the bath kettle cleaner dissolves and diffuses, and the reaction between the scale and the bath kettle cleaner A higher cleaning effect can be expected.

本発明の第2洗浄方法においては、洗浄用具設置工程及び水張工程の順序は特に問わず、いずれを先に行ってもよい。すなわち、少なくとも風呂水出入穴が水没する水位まで風呂水を投入し、風呂水を浴槽内に張った状態で、風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接してもよいし、風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接した後、少なくとも風呂水出入穴が水没する水位まで風呂水を浴槽内に投入してもよい。また、洗浄用具設置工程及び水張工程を同時に行ってもよい。自然循環式風呂釜を洗浄する場合における水張工程においては、20〜45℃の温水を張ることが好ましく、35〜45℃の温水を張ることがより好ましい。冷水を浴槽に張った場合には、風呂釜洗浄用具を設置後に風呂釜を運転し、風呂釜洗浄用具の区画内と風呂釜内の水の温度を上記水温まで上昇させておくことが好ましい。この際に風呂釜洗浄用具の区画内の水を攪拌しながら運転すると、区画内及び風呂釜内の水を均一に上昇させることができる。   In the second cleaning method of the present invention, the order of the cleaning tool installation step and the water filling step is not particularly limited, and either may be performed first. In other words, bath water is poured in at least to a level where the bath water entrance / exit hole is submerged, and the bath water is stretched in the bathtub, so that the inside of the bath water entrance / exit hole is divided into a predetermined volume. The cleaning tool may be brought into contact with the wall surface of the bathtub, or at least the bath water after the bath pot cleaning tool is brought into contact with the wall surface of the bathtub so as to partition the inside of the bath water entrance / exit hole into the predetermined volume. Bath water may be poured into the bathtub until the water level at which the access hole is submerged. Moreover, you may perform a cleaning tool installation process and a water filling process simultaneously. In the water filling step when washing the natural circulation bath, it is preferable to add 20 to 45 ° C. warm water, and more preferably 35 to 45 ° C. hot water. When cold water is applied to the bathtub, it is preferable that the bath pot is operated after the bath pot cleaning tool is installed, and the temperature of the water in the compartment of the bath pot cleaning tool and the bath pot is raised to the above water temperature. At this time, if the water in the compartment of the bath tub cleaning tool is operated while being stirred, the water in the compartment and the bath basin can be raised uniformly.

本発明の風呂釜洗浄方法は、さらに、風呂釜洗浄用具で区画された風呂水に、酸性物質を含有する風呂釜洗浄剤Bを投入して風呂釜を洗浄する洗浄工程Bを含むことが好ましい。これにより、熱効率を低下させる原因となる炭酸カルシウム等のスケールを除去することができる。洗浄工程Bを含む場合、洗浄工程Aの後に洗浄工程Bを行ってもよいし、洗浄工程Bの後に洗浄工程Aを行ってもよいが、風呂釜内では炭酸カルシウムを主成分とする硬質のスケールの上層を有機性付着物(湯垢等)が覆っていることが多いため、洗浄工程Aの後に洗浄工程Bを行うことが好ましい。これにより、より効率的にスケールの除去を行うことが可能となる。なお、洗浄工程A及び洗浄工程Bは、それぞれ複数回行ってもよい。   The bath tub cleaning method of the present invention preferably further includes a cleaning step B in which the bath tub cleaning agent B containing an acidic substance is added to the bath water partitioned by the bath tub cleaning tool to clean the bath tub. . Thereby, scales, such as calcium carbonate, which cause a decrease in thermal efficiency can be removed. When the cleaning process B is included, the cleaning process B may be performed after the cleaning process A, or the cleaning process A may be performed after the cleaning process B. Since organic deposits (scale etc.) often cover the upper layer of the scale, it is preferable to perform the cleaning step B after the cleaning step A. This makes it possible to remove the scale more efficiently. Note that the cleaning step A and the cleaning step B may each be performed a plurality of times.

本発明の洗浄工程Aとしては、風呂釜洗浄用具で区画された風呂水に、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aを投入して風呂釜を洗浄する工程であれば特に制限されるものではなく、例えば、投入された風呂釜洗浄剤Aを風呂釜内に強制的に循環させる循環工程Aを含むものを挙げることができる。   The washing step A of the present invention is not particularly limited as long as it is a step of washing the bath with the bath kettle cleaning agent A containing foamable sodium percarbonate added to the bath water partitioned by the bath kettle washing tool. For example, there may be mentioned one including a circulation step A for forcibly circulating the charged bath cleaner A into the bath.

循環工程Aにおける強制的な循環は、例えば、風呂釜を運転させることにより行うことができる。すなわち、自然循環式風呂釜の場合には、加熱された風呂水が上昇して対流が起こり、下穴から風呂釜に低温水が流入し、加熱された高温水が上穴から浴槽に流出することにより循環が行われる。また、手動又は自動のポンプにより、風呂釜洗浄用具の区画内の風呂釜洗浄剤を下穴又は上穴に強制的に流入させ、風呂釜内に循環させることもできる。強制循環式風呂釜の場合には、風呂釜に設けられたポンプにより強制的に循環が行われる。この強制的な循環は、0.5〜5分程度行うことが好ましく、1〜5分程度行うことがより好ましく、2〜5分程度行うことがさらに好ましい。自然循環式風呂釜の場合は、連続運転を行うと風呂釜洗浄用具の区画内の水温が上昇するため、0.5〜1分程度の強制循環と2〜10分程度の放置を交互に1〜3回繰り返すことがより好ましく、これにより、より効果的に洗浄を行うことができる。   The forced circulation in the circulation process A can be performed, for example, by operating a bath. In other words, in the case of a natural circulation bath, heated bath water rises and convection occurs, low temperature water flows into the bath from the lower hole, and heated hot water flows out from the upper hole to the bathtub. Circulation takes place. Moreover, the bath cleaning agent in the compartment of the bath tub cleaning tool can be forced to flow into the pilot hole or the upper hole by a manual or automatic pump, and can be circulated in the bath tub. In the case of a forced circulation bath, circulation is forcibly performed by a pump provided in the bath. This forced circulation is preferably performed for about 0.5 to 5 minutes, more preferably about 1 to 5 minutes, and further preferably about 2 to 5 minutes. In the case of a natural circulation bath, continuous operation increases the water temperature in the compartment of the bath cleaning tool. For this reason, forced circulation for about 0.5 to 1 minute and neglect for about 2 to 10 minutes are alternately 1 It is more preferable to repeat ~ 3 times, and thereby cleaning can be performed more effectively.

また、特に自然循環式風呂釜の洗浄を行う場合には、洗浄工程Aは、投入された風呂釜洗浄剤Aを風呂釜内に拡散させる拡散工程Aを含むものであってもよい。すなわち、自然循環式風呂釜は風呂釜内管が太く短いので、洗浄剤の拡散によって洗浄剤を風呂釜内管全体に行き渡らせることが可能となり、投入された風呂釜洗浄剤Aを風呂釜内に強制的に循環させる上記循環工程Aを行うことは必ずしも必要ない。発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aは、拡散性に優れており、強制的に循環しなくても、風呂釜内管全体に洗浄剤を行き渡らせることができる。このとき、風呂釜洗浄剤Aは、より拡散性を向上させるために、顆粒状であることが好ましい。   In particular, when the natural circulation bath is cleaned, the cleaning step A may include a diffusion step A for diffusing the charged bath cleaner A into the bath. In other words, since the natural circulation bath has a thick and short tube inside the bath, it is possible to spread the cleaning agent throughout the bath tube by the diffusion of the cleaning agent. It is not always necessary to perform the circulation step A for forced circulation. Bath tub cleaning agent A containing foamable sodium percarbonate is excellent in diffusibility, and even if it is not forcedly circulated, the cleaning agent can be distributed throughout the bath tub inner tube. At this time, the bath kettle cleaning agent A is preferably in a granular form in order to further improve the diffusibility.

拡散工程Aにおける拡散とは、洗浄剤を投入した後、0.5分以上放置することをいい、1〜30分程度放置することが好ましく、5〜30分程度放置することがより好ましい。この間、必要に応じて区画内の風呂水を攪拌してもよい。なお、上記強制的な循環を行った後の放置は、ここでいう拡散に含まれない。この拡散工程Aにおける風呂水の温度としては、洗浄剤の拡散作用や残り湯の使用を考慮すると、5〜45℃であることが好ましく、20〜45℃であることがより好ましく、35〜45℃であることがさらに好ましい。これにより、風呂水が非常に高温になることを防止して、より安全に作業を行うことができる。   The diffusion in the diffusion step A refers to leaving the cleaning agent for 0.5 minutes or more, preferably leaving for about 1 to 30 minutes, and more preferably about 5 to 30 minutes. During this time, bath water in the compartment may be agitated as necessary. Note that the neglect after the forced circulation is not included in the diffusion here. The temperature of the bath water in the diffusion step A is preferably 5 to 45 ° C., more preferably 20 to 45 ° C., more preferably 35 to 45 in consideration of the diffusion action of the cleaning agent and the use of remaining hot water. More preferably, the temperature is C. Thereby, it can prevent that bath water becomes very high temperature, and can work more safely.

また、この拡散工程Aの後に、循環工程Aを行うこともでき、より効果的に洗浄を行うことができる。この場合、拡散時間及び循環時間は、それぞれ単独で行う場合に比して短時間でよく、拡散工程Aにおける拡散時間は、例えば、0.5〜3分程度であり、1〜3分程度であることが好ましく、循環工程Aにおける循環時間は、例えば、0.5〜2分程度であり、1〜2分程度であることが好ましい。   Further, after the diffusion step A, the circulation step A can be performed, and cleaning can be performed more effectively. In this case, the diffusion time and the circulation time may be shorter than in the case where each is performed alone, and the diffusion time in the diffusion step A is, for example, about 0.5 to 3 minutes, and about 1 to 3 minutes. It is preferable that the circulation time in the circulation step A is, for example, about 0.5 to 2 minutes, and preferably about 1 to 2 minutes.

さらに、洗浄工程Aが、清浄な水を投入して、風呂釜内の風呂釜洗浄剤Aを洗い流す水洗工程Aを含むことが好ましい。かかる水洗工程Aにおける水洗は、ホースやバケツ等を用いて、清浄な水を投入しつつ、風呂釜を運転して行うことができる。   Furthermore, it is preferable that the washing | cleaning process A includes the water washing process A which throws in clean water and flushes out the bathtub cleaning agent A in a bathtub. The rinsing in the rinsing step A can be performed by operating the bath tub while supplying clean water using a hose or a bucket.

洗浄工程Bとしては、風呂釜洗浄用具で区画された風呂水に、酸性物質を含有する風呂釜洗浄剤Bを投入して風呂釜を洗浄する工程であれば特に制限されるものではなく、場合によっては、風呂釜洗浄剤Aと同様、投入された風呂釜洗浄剤Bを拡散させることも可能であるが、投入された風呂釜洗浄剤Bを風呂釜内に強制的に循環させる循環工程Bを含むことが好ましい。循環工程Bにおける強制的な循環は、風呂釜を運転させることにより行うことができ、その詳細は循環工程Aと同様である。また、洗浄工程Bが、清浄な水を投入して、風呂釜内の風呂釜洗浄剤Aを洗い流す水洗工程Bを含むことが好ましく、その詳細は、水洗工程Aと同様である。   The washing process B is not particularly limited as long as it is a process for washing the bath with a bath kettle cleaning agent B containing an acidic substance into bath water partitioned by a bath kettle washing tool. Depending on the type of bath bath cleaning agent A, the bath bath cleaning agent B can be diffused as in the case of the bath bath cleaning agent A. However, the circulation step B forcibly circulating the bath bath cleaning agent B input into the bath kettle. It is preferable to contain. The forced circulation in the circulation process B can be performed by operating the bath, and the details thereof are the same as those in the circulation process A. Moreover, it is preferable that the washing | cleaning process B includes the rinsing process B which throws in clean water and wash | cleans the bath tub cleaning agent A in a bath tub, The details are the same as the rinsing process A.

以下、本発明の風呂釜洗浄方法に用いられる洗浄剤について説明する。本発明の風呂釜洗浄方法に用いられる風呂釜洗浄剤Aは、発泡性過炭酸ナトリウムを含有している。発泡性過炭酸ナトリウムとは、水に投入した際にガスを発生しながら溶解する過炭酸ナトリウムであり、各種公知の方法で製造可能であるが、過炭酸ナトリウムの顆粒を80℃〜140℃で加熱して得られる水と接触した際に酸素ガスを発生しながら顆粒が崩壊する発泡性過炭酸ナトリウムが好ましく使用される。過炭酸ナトリウムは、NaCO・3/2Hで表される、炭酸ナトリウムの過酸化水素付加体である。 Hereinafter, the cleaning agent used in the bath pot cleaning method of the present invention will be described. The bath tub cleaning agent A used in the bath tub cleaning method of the present invention contains effervescent sodium percarbonate. Effervescent sodium percarbonate is sodium percarbonate that dissolves while generating gas when thrown into water, and can be produced by various known methods. Sodium percarbonate granules are produced at 80 ° C to 140 ° C. Foamable sodium percarbonate, in which the granules collapse while generating oxygen gas when contacted with water obtained by heating, is preferably used. Sodium percarbonate is represented by Na 2 CO 3 · 3 / 2H 2 O 2, hydrogen peroxide adducts of sodium carbonate.

風呂釜洗浄剤Aを風呂釜洗浄用具内の風呂水に投入すると、風呂釜洗浄剤Aに含まれる発泡性過炭酸ナトリウムが風呂水に接触して酸素の気泡を発生し、その気泡が風呂釜洗浄剤Aに付着してその沈降を抑制し、風呂釜洗浄剤Aが風呂釜洗浄用具内の風呂水に均一に接触するのを促進するとともに、気泡の発生により風呂釜洗浄剤Aの顆粒等を崩壊、分散させることによって、高濃度の過炭酸ナトリウムの溶解を実現する。風呂釜洗浄剤Aは、発泡性過炭酸ナトリウムの発泡と崩壊により風呂釜洗浄用具の区画内で均一、高濃度に溶解すると共に、風呂釜内部に有効成分が拡散する。特に、自然循環式風呂釜においては、強制循環を行わなくても風呂釜内部に洗浄剤成分をほぼ均一に拡散させることが可能となる。風呂釜洗浄剤Aが自然循環式風呂釜内部に均一に拡散する原因としては、流入、流出穴に接する狭い風呂釜洗浄用具の区画内で起こる激しい発泡により生じる上昇水流によって洗浄剤成分が風呂釜内への循環流入すること等が考えられる。このように、風呂釜洗浄剤Aは、本発明の風呂釜洗浄方法において極めて有効であり、有機物の分解、微生物の殺菌、膜状物の剥離を行って、風呂釜内を効果的に洗浄することができる。   When bath tub cleaning agent A is poured into the bath water in the tub cleaning tool, the foaming sodium percarbonate contained in bath tub cleaning agent A comes into contact with the bath water to generate oxygen bubbles, which are generated in the bath tub. It adheres to the cleaning agent A and suppresses its sedimentation, and promotes the bath kettle cleaning agent A to be in uniform contact with the bath water in the bath kettle cleaning tool. Is dissolved and dispersed to achieve a high concentration sodium percarbonate dissolution. Bath kettle cleaning agent A dissolves uniformly and at a high concentration in the compartment of the bath kettle cleaning tool due to foaming and collapse of effervescent sodium percarbonate, and the active ingredient diffuses inside the bath kettle. In particular, in a natural circulation bath, it is possible to diffuse the detergent component almost uniformly in the bath without performing forced circulation. The reason why the bath tub cleaning agent A diffuses uniformly inside the natural circulation bath tub is that the cleaning agent component is caused by the rising water flow generated by intense foaming in the compartment of the narrow bath tub cleaning tool in contact with the inflow and outflow holes. It is conceivable that the circulation flows into the inside. As described above, the bath tub cleaning agent A is extremely effective in the bath tub cleaning method of the present invention, and effectively decomposes the inside of the bath tub by decomposing organic matter, sterilizing microorganisms, and peeling off film-like materials. be able to.

風呂釜洗浄剤Aに含まれる発泡性過炭酸ナトリウムの量については、特に制限はないが、全量に対して60〜90重量%(過炭酸ナトリウム理論組成物としての含有濃度)、好ましくは70〜85重量%(前述)とすることができる。   Although there is no restriction | limiting in particular about the quantity of the foamable sodium percarbonate contained in the bathtub cleaning agent A, 60 to 90 weight% (content concentration as a sodium percarbonate theoretical composition) with respect to the whole quantity, Preferably 70- It may be 85% by weight (described above).

発泡性過炭酸ナトリウムは、水に投入するとNaCOとHに分離し、NaCOは水溶液中でアルカリの作用を発揮し、Hは水溶液中で酸化作用及び殺菌作用を発揮する。 Effervescent sodium percarbonate is separated into Na 2 CO 3 and H 2 O 2 when introduced into water, Na 2 CO 3 exerts an alkaline action in an aqueous solution, and H 2 O 2 Demonstrates bactericidal action.

風呂釜洗浄剤Aは、起泡剤を含んでいることが好ましい。起泡剤が含まれていると、発泡性過炭酸ナトリウムが風呂水に接触した際に発生する酸素の気泡により、効果的に風呂釜洗浄剤の顆粒等の崩壊、分散が行われ、高濃度の過炭酸ナトリウムが狭い容器内であっても容易に溶解する。また、起泡剤は風呂釜内の膜状物の剥離にも有利に作用する。   The bath tub cleaning agent A preferably contains a foaming agent. When a foaming agent is included, oxygen bubbles generated when foaming sodium percarbonate comes in contact with the bath water effectively disintegrates and disperses the bath detergent granules and the like, resulting in a high concentration. The sodium percarbonate dissolves easily even in a narrow container. The foaming agent also has an advantageous effect on peeling of the film-like material in the bath.

起泡剤としては、水溶性高分子、界面活性剤等、本発明の第一の風呂釜洗浄剤の効果を妨げずに起泡するものである限り特に制限はないが、中でも界面活性剤が好ましく、湯垢の除去効果が特に優れていることから、陰イオン系界面活性剤が特に好ましい。本発明の風呂釜洗浄剤は比較的少量の水で使用するため、起泡性の高い界面活性剤を多く用いると、多く発泡しすぎて泡とともに本発明の第一の風呂釜洗浄剤が風呂釜洗浄用具の外に流出してしまうため、例えば、HLBが高いエチレンオキサイド・プロピレンオキサイドブロックポリマー、ソルビタンモノオレート、ジオクチルスルフォコハク酸ナトリウム、ナフタレンスルフォン酸縮合物等の低起泡性界面活性剤が好ましく用いられ、また添加する起泡剤の量は多すぎないことが好ましい。起泡剤の添加量は特に制限されないが、起泡力の高い界面活性剤の場合は、例えば、過炭酸ナトリウム100重量部に対して0.001〜0.01重量部とすることが好ましい。またポリエチレングリコール等の水溶性高分子類も好ましく使用される。   The foaming agent is not particularly limited as long as the foaming agent does not interfere with the effect of the first bath cleaning agent of the present invention, such as a water-soluble polymer and a surfactant. An anionic surfactant is particularly preferred because it is particularly excellent in the removal effect of scale. Since the bath tub cleaner of the present invention is used with a relatively small amount of water, if a large amount of highly foaming surfactant is used, the first bath tub cleaner of the present invention will be used together with the foam. Low foaming surfactants such as ethylene oxide / propylene oxide block polymers with high HLB, sorbitan monooleate, sodium dioctylsulfosuccinate, naphthalene sulfonic acid condensate, etc. Is preferably used, and the amount of foaming agent to be added is preferably not too large. The addition amount of the foaming agent is not particularly limited, but in the case of a surfactant having a high foaming power, for example, it is preferably 0.001 to 0.01 parts by weight with respect to 100 parts by weight of sodium percarbonate. Water-soluble polymers such as polyethylene glycol are also preferably used.

また、風呂釜洗浄剤Aは、消泡剤を含んでいてもよい。消泡剤を添加すれば、低起泡性ではない界面活性剤を起泡剤として用いる場合であっても、風呂釜洗浄用具の外に流出する風呂釜洗浄剤を低減することができる。消泡剤としては、特に制限はないが、例えば、シリコン系消泡剤、等が挙げられる。   Moreover, the bath tub cleaning agent A may contain an antifoaming agent. If an antifoaming agent is added, even if a non-foaming surfactant is used as the foaming agent, the bath cleaning agent flowing out of the bath cleaning tool can be reduced. Although there is no restriction | limiting in particular as an antifoamer, For example, a silicon type antifoamer etc. are mentioned.

起泡剤及び消泡剤の添加量は、風呂釜洗浄剤Aに含まれる発泡性過炭酸ナトリウムの含有量、発泡性過炭酸ナトリウムの発泡力、風呂釜洗浄用具の体積、起泡剤の起泡力や消泡剤の消泡力により左右されるので一概に言えないが、使用する発泡性過炭酸ナトリウムや風呂釜洗浄用具等に合わせて、起泡剤の種類及び量並びに消泡剤の種類及び量を適宜調節するなどして、本発明の風呂釜洗浄剤の溶解性を向上しつつ、かつ風呂釜洗浄剤が風呂釜洗浄用具からあまり流出しないように調節することができる。   The amount of foaming agent and antifoaming agent added depends on the content of foaming sodium percarbonate contained in bath tub cleaning agent A, the foaming power of foaming sodium percarbonate, the volume of the bath tub cleaning tool, Since it depends on the foam strength and the defoaming power of the antifoaming agent, it cannot be generally stated, but depending on the foaming sodium percarbonate used, the washing utensil for the bath, etc. By appropriately adjusting the type and amount, the solubility of the bath tub cleaning agent of the present invention can be improved and the bath tub cleaning agent can be adjusted so that it does not flow out of the bath tub cleaning tool.

風呂釜洗浄剤Aは、20〜25℃の水(pH6〜8)300mlが入った内径45mm〜65mmの範囲内である円筒状の500ml用のガラス製のメスシリンダーに、1気圧の条件下で、20g添加して静置した場合に、添加してから1分以内にメスシリンダー内の液面より上に形成される泡の体積の最大値が10ml〜100mlであることが好ましく、20ml〜60mlであることがより好ましい。さらにかつ、メスシリンダー内の液面より上に形成されている泡の体積が、添加後5分以内に10ml以下になることが好ましく、5ml以下になることがより好ましい。   Bathtub cleaner A is a cylindrical 500 ml glass graduated cylinder with an inner diameter of 45 to 65 mm containing 20 to 25 ° C. water (pH 6 to 8) at a pressure of 1 atm. When 20 g is added and allowed to stand, the maximum value of the volume of foam formed above the liquid level in the graduated cylinder within 1 minute after addition is preferably 10 ml to 100 ml, and 20 ml to 60 ml. It is more preferable that Furthermore, the volume of the foam formed above the liquid level in the graduated cylinder is preferably 10 ml or less, more preferably 5 ml or less within 5 minutes after the addition.

また、風呂釜洗浄剤Aは、風呂釜の接液部の過炭酸ナトリウム水溶液による腐食を防止するため、銅とアルミニウムの腐食防止に有効な腐食防止剤を含んでいることが好ましい。特にアルミニウムに対する過炭酸ナトリウム水溶液の腐食量は大きいため各種公知の対アルカリ性向けのアルミニウム用腐食防止剤が好ましく使用され、さらに好ましくは過炭酸ナトリウムに配合した際に安定でありかつアルミニウムと銅への腐食防止効果が強いケイ酸ナトリウムが好ましく使用される。ケイ酸ナトリウムとしては酸化ナトリウムと二酸化ケイ素の配合比の異なる多数の組成物が知られているが本発明の腐食防止剤としては酸化ナトリウムに対する二酸化ケイ素のモル比が1〜4のものが好ましく、特に好ましくは2〜3.5の無水物が使用される。   Moreover, it is preferable that the bath tub cleaning agent A contains a corrosion inhibitor effective for preventing corrosion of copper and aluminum in order to prevent corrosion of the wetted portion of the bath tub by an aqueous sodium percarbonate solution. In particular, since the corrosion amount of sodium percarbonate aqueous solution with respect to aluminum is large, various known anti-alkali anticorrosive agents for aluminum are preferably used, and more preferably stable when blended with sodium percarbonate and to aluminum and copper. Sodium silicate having a strong anticorrosion effect is preferably used. As sodium silicate, many compositions having different mixing ratios of sodium oxide and silicon dioxide are known, but the corrosion inhibitor of the present invention preferably has a molar ratio of silicon dioxide to sodium oxide of 1 to 4, Particularly preferably, an anhydride of 2 to 3.5 is used.

ケイ酸ナトリウムは水に易溶性であるが、本発明の特願2005―038976号に記載の風呂釜洗浄用具用の風呂釜洗浄剤として使用する場合は粒子径が200μm以下のものを使用することが好ましく、100μm以下の粒子径のものが特に好ましく使用される。ケイ酸ナトリウムは過炭酸ナトリウムに対し1〜15重量%の割合で添加され、特に好ましくは3〜10重量%の割合で添加される。ケイ酸ナトリウムは過炭酸ナトリウムの顆粒に粉末状で添加することも可能であり、過炭酸ナトリウムを造粒する前に添加混合し、過炭酸ナトリウムの顆粒中に配合することも可能である。   Sodium silicate is readily soluble in water, but when used as a bath cleaning agent for a bath cleaning device described in Japanese Patent Application No. 2005-038976 of the present invention, a particle having a particle size of 200 μm or less should be used. A particle size of 100 μm or less is particularly preferably used. Sodium silicate is added in a proportion of 1 to 15% by weight, particularly preferably 3 to 10% by weight, based on sodium percarbonate. Sodium silicate can be added to sodium percarbonate granules in powder form, and can be added and mixed before granulating sodium percarbonate and then blended into the sodium percarbonate granules.

風呂釜洗浄剤Aには、風呂釜内の金属元素による過炭酸ナトリウムの分解を抑制し、過炭酸ナトリウムによる有機物汚れをより効率的に行うため、キレート剤を含んでいることが好ましい。本発明に使用されるキレート剤としては各種公知のキレート剤が使用可能であり、例えばグリセリン酸、テトロン酸、ペントン酸、ヘキソン酸、ヘプトン酸等のアルドン酸類のアルカリ金属塩もしくは低級アミン塩、ニトリロ三酢酸、エチレンジアミン四酢酸、ヒドロキシルイミノ二酢酸、ジヒドロキシエチルグリシン、エチレンジアミン二酢酸、ジエチレントリアミン五酢酸、トリエチレンテトラミン六酢酸、テトラエチレンテトラミン六酢酸等のアミノカルボン酸類のアルカリ金属塩もしくは低級アミン塩、酒石酸、クエン酸、リンゴ酸、グルタミン酸等のオキシカルボン酸類のアルカリ金属塩もしくは低級アミン塩、アミノトリメチレンホスホン酸、ヒドロキシエチリデンジホスホン酸、エチレンジアミンテトラメチレンホスホン酸、ジエチレントリアミンペンタメチレンホスホン酸等のホスホン酸類のアルカリ金属塩もしくは低級アミン塩や、エタノールアミン、ジエタノールアミン、トリエタノールアミン等のアルカノールアミン塩、好ましくは、グルコン酸、グルコヘプトン酸、エチレンジアミン四酢酸、酒石酸、クエン酸、ヒドロキシエチリデンジホスホン酸のアルカリ金属塩もしくは低級アミン塩、特に好ましくは、エチレンジアミン四酢酸ナトリウム、酒石酸ナトリウムが挙げられる。キレート剤は粒子径500μm以下のものが好ましく使用され特に好ましくは200μm以下のものが使用される。   The bath cleaner A preferably contains a chelating agent in order to suppress decomposition of sodium percarbonate due to metal elements in the bath and to more efficiently perform organic contamination with sodium percarbonate. As the chelating agent used in the present invention, various known chelating agents can be used. For example, alkali metal salts or lower amine salts of aldonic acids such as glyceric acid, tetronic acid, pentonic acid, hexonic acid, heptonic acid, nitrilolic acid, etc. Alkali metal salts or lower amine salts of aminocarboxylic acids such as triacetic acid, ethylenediaminetetraacetic acid, hydroxyliminodiacetic acid, dihydroxyethylglycine, ethylenediaminediacetic acid, diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, tetraethylenetetraminehexaacetic acid, tartaric acid , Alkali metal salts or lower amine salts of oxycarboxylic acids such as citric acid, malic acid, glutamic acid, aminotrimethylene phosphonic acid, hydroxyethylidene diphosphonic acid, ethylenediamine tetramethylene phosphonic acid, Alkali metal salts or lower amine salts of phosphonic acids such as ethylenetriaminepentamethylenephosphonic acid and alkanolamine salts such as ethanolamine, diethanolamine and triethanolamine, preferably gluconic acid, glucoheptonic acid, ethylenediaminetetraacetic acid, tartaric acid, citric acid Acids, alkali metal salts of hydroxyethylidene diphosphonic acid or lower amine salts, particularly preferably sodium ethylenediaminetetraacetate and sodium tartrate. The chelating agent preferably has a particle size of 500 μm or less, and particularly preferably has a particle size of 200 μm or less.

風呂釜洗浄剤Aは、酵素を含んでいることが好ましい。これにより、湯垢等の有機物系の汚れの除去効果が大幅に向上する。酵素としては、湯垢等の有機物系の汚れの除去効果が優れていることから、プロテアーゼ、αアミラーゼが好ましく挙げられる。また、湯垢等の有機物系の汚れに対してより優れた除去効果を発揮することから、プロテアーゼとαアミラーゼとを併用することが特に好ましい。   It is preferable that the bath tub cleaning agent A contains an enzyme. As a result, the effect of removing organic matter such as scale is greatly improved. Preferred examples of the enzyme include protease and α-amylase because of its excellent effect of removing organic soil such as scale. In addition, it is particularly preferable to use protease and α-amylase in combination because they exhibit a more excellent removal effect against organic soil such as scale.

プロテアーゼの添加量は特に制限されないが、湯垢等の有機物系の汚れに対してより優れた除去効果を発揮することから、過炭酸ナトリウムに対し0.03重量%以上とすることが好ましく、0.2重量%以上とすることがより好ましく、0.2〜0.3重量%とすることがさらに好ましい。なお、0.3重量%以上添加してもよいが、それ以上添加しても効果はあまり上がらない。   The amount of protease added is not particularly limited, but it is preferably 0.03% by weight or more based on sodium percarbonate, because it exhibits a more excellent removal effect against organic soil such as scale. The content is more preferably 2% by weight or more, and further preferably 0.2 to 0.3% by weight. In addition, although 0.3 weight% or more may be added, the effect will not increase so much even if it adds more.

αアミラーゼの添加量は特に制限されないが、湯垢等の有機物系の汚れに対してより優れた除去効果を発揮することから、過炭酸ナトリウムに対し0.1重量%以上とすることが好ましく、0.3重量%以上とすることがより好ましく、0.5〜2重量%とすることがさらに好ましい。   The amount of α-amylase added is not particularly limited, but is preferably 0.1% by weight or more based on sodium percarbonate because it exhibits a more excellent removal effect against organic soil such as scale. More preferably, the content is 3% by weight or more, and further preferably 0.5 to 2% by weight.

風呂釜洗浄剤Aは、過酸化水素を認知するための成分を含んでいることが好ましい。過酸化水素を指標とすることによって、洗浄した部分に、湯垢等の有機物系の汚れが残存しているかどうかを簡便に認知することができるからである。過炭酸水素ナトリウムは水に溶解して炭酸ナトリウムと過酸化水素に分離し、炭酸ナトリウムと過酸化水素がそれぞれ風呂釜内の有機系の汚れ(有機性付着物)と反応し、炭酸ナトリウムが発揮するアルカリ作用及び/又は過酸化水素が発揮する酸化作用によって、風呂釜内の有機性付着物が分解除去される。過酸化水素は、有機性付着物と反応すると、自身は還元されて酸素や水等に変化するため、風呂釜内に過剰量の有機性付着物が存在すると、過酸化水素がすべて用い尽くされ、風呂釜内に有機性付着物が残存した状態のまま洗浄が終了することになる。逆にいえば、風呂釜内の有機性付着物がすべて分解され、風呂釜が十分に洗浄された場合は、洗浄終了後の洗浄液(風呂釜内を循環していた風呂釜洗浄剤の溶解液)中に過酸化水素が残存していることになるため、この残存した過酸化水素を検知すれば、風呂釜内の洗浄が十分なされたことを確認することができる。   The bath tub cleaning agent A preferably contains a component for recognizing hydrogen peroxide. This is because by using hydrogen peroxide as an index, it is possible to easily recognize whether or not organic soil such as scale remains in the cleaned part. Sodium hydrogen carbonate dissolves in water and separates into sodium carbonate and hydrogen peroxide. Sodium carbonate and hydrogen peroxide react with organic soil (organic deposits) in the bath, respectively, and sodium carbonate exerts The organic deposits in the bath are decomposed and removed by the alkaline action and / or the oxidizing action exhibited by hydrogen peroxide. When hydrogen peroxide reacts with organic deposits, it is reduced to oxygen, water, etc., so if there is an excessive amount of organic deposits in the bath, all of the hydrogen peroxide is consumed. Then, the cleaning is completed while the organic deposit remains in the bath. In other words, if all of the organic deposits in the bath are decomposed and the bath is thoroughly washed, the cleaning solution after the cleaning is completed (the solution of the bath cleaning agent circulating in the bath) ), Hydrogen peroxide remains in it. If this residual hydrogen peroxide is detected, it can be confirmed that the bath has been sufficiently cleaned.

本発明における過酸化水素を認知するための成分は、特に制限されないが、過酸化水素濃度によって色調が変わる酸化還元指示薬を例示することができる。該酸化還元指示薬としては具体的に、ヨウ化カリウム等のヨウ素イオン含有化合物などが挙げられる。ファイバースコープを用いれば、風呂釜内の有機性付着物が除去されたことを直接視認することができ、また酸化還元電位計を用いれば、洗浄終了後の洗浄液の酸化還元電位の数値を測定することによって、過酸化水素濃度を推測することができるが、ファイバースコープや酸化還元電位計等の器具は一般家庭には通常存在していないところ、上述の酸化還元指示薬を用いれば、それらの器具がなくても洗浄終了後の洗浄液中の過酸化水素の存否を、該洗浄液の色を視覚で確認することによって容易に認知することができ、第一の風呂釜洗浄剤を用いてさらに洗浄する必要があるかどうかを的確に判断することができる。たとえば、洗浄終了後の洗浄液中に過酸化水素がなかった場合は、風呂釜洗浄剤を洗浄液中に追加したり、再洗浄したりすることが容易にできるため、風呂釜洗浄剤を必要以上に大量に使用してしまうことなく、風呂釜の洗浄を効果的に行うことができる。また、過酸化水素を認知するための成分を用いなくても、例えば過酸化水素の濃度によって色調が変わる試験紙を洗浄終了後の洗浄液に浸すことによって、同様の目的を達成することができる。また、本発明の風呂釜洗浄用具の壁面の全部又は一部を透明にし、過酸化水素の濃度によって色調や表示が可変的に変わる耐水性の検知体を風呂釜洗浄用具の内部に設置した場合は、風呂釜洗浄用具中の洗浄液の過酸化水素濃度を容易に認知することができる。   The component for recognizing hydrogen peroxide in the present invention is not particularly limited, and examples thereof include a redox indicator whose color tone changes depending on the concentration of hydrogen peroxide. Specific examples of the redox indicator include iodine ion-containing compounds such as potassium iodide. If you use a fiberscope, you can see directly that organic deposits in the bath have been removed, and if you use an oxidation-reduction potentiometer, measure the oxidation-reduction potential of the cleaning liquid after cleaning. This makes it possible to estimate the hydrogen peroxide concentration. However, devices such as fiberscopes and oxidation-reduction potentiometers are not usually present in ordinary households. Even if it is not, the presence or absence of hydrogen peroxide in the cleaning liquid after completion of cleaning can be easily recognized by visually checking the color of the cleaning liquid, and it is necessary to perform further cleaning with the first bath cleaner. It is possible to accurately determine whether or not there is. For example, if there is no hydrogen peroxide in the cleaning liquid after cleaning, it is easy to add a bath tub cleaning agent to the cleaning liquid or re-clean it. It is possible to effectively wash the bath without using a large amount. Even if a component for recognizing hydrogen peroxide is not used, for example, a similar purpose can be achieved by immersing a test paper whose color tone changes depending on the concentration of hydrogen peroxide in a cleaning liquid after completion of cleaning. In addition, when all or part of the wall surface of the bath tub cleaning tool of the present invention is made transparent and a water-resistant detector whose color tone or display changes variably depending on the concentration of hydrogen peroxide is installed inside the bath tub cleaning tool Can easily recognize the hydrogen peroxide concentration of the cleaning liquid in the bath tub cleaning tool.

風呂釜洗浄剤Aは、風呂釜洗浄剤の効果を妨げない限り、起泡剤、消泡剤、腐食防止剤及びキレート剤の他の任意成分をさらに含んでいてもよい。そのような任意成分として、例えば、過炭酸ナトリウムの安定化剤、過炭酸ナトリウムの活性化剤、着色剤等が挙げられる。なお、発泡性過炭酸ナトリウム及び起泡剤を除く腐食防止剤等の添加剤は、便宜上、「含む」と表現しているが、別途、区画内に添加する態様も含まれる。なお、起泡剤は、発泡性過炭酸ナトリウムが水に投入された際に発生した気泡を過炭酸ナトリウム粒子に付着させ、顆粒の沈降を防ぐ目的で添加されるため、発泡性過炭酸ナトリウムと共存している必要があり、混合又は顆粒に含浸した状態にあることが好ましい。   The bath tub cleaning agent A may further include other optional components of a foaming agent, an antifoaming agent, a corrosion inhibitor, and a chelating agent as long as the effect of the bath tub cleaning agent is not hindered. Examples of such optional components include a sodium percarbonate stabilizer, a sodium percarbonate activator, and a colorant. In addition, although additives, such as corrosion inhibitor except foaming sodium percarbonate and a foaming agent, are expressed as "include" for convenience, the aspect added separately in a division is also contained. The foaming agent is added for the purpose of preventing foaming sodium percarbonate from adhering air bubbles generated when foaming sodium percarbonate is added to water to the sodium percarbonate particles and preventing the sedimentation of the granules. It is necessary to coexist and is preferably in a state of being mixed or impregnated in granules.

また、本発明の風呂釜洗浄方法に用いられる風呂釜洗浄剤Bは、酸性物質を含有している。風呂釜を使用していると、水道水等に含まれる炭酸カルシウム等の無機物が風呂釜内に付着して、風呂釜の熱効率を低下させる原因となる。風呂釜洗浄剤Bを用いて風呂釜を洗浄すると、風呂釜内に付着した、炭酸カルシウムを主成分とする硬質のスケールを除去することができる。風呂釜洗浄剤Bは発泡性を有していないが、除去目的物が炭酸カルシウムを主成分とする無機物であるため、低濃度の溶解液が風呂釜内に達すると炭酸カルシウムとの反応により発泡するため、風呂釜内と洗浄用具の区画内で循環が起こり、強制循環を行わなくても風呂釜内の洗浄を行うことができる。   Moreover, the bath tub cleaning agent B used in the bath tub cleaning method of the present invention contains an acidic substance. When a bath pot is used, inorganic substances such as calcium carbonate contained in tap water adhere to the inside of the bath pot and cause a decrease in the thermal efficiency of the bath pot. When the bath tub is cleaned using the bath tub cleaning agent B, the hard scale mainly composed of calcium carbonate adhered to the bath tub can be removed. Bath kettle cleaning agent B does not have foaming properties, but since the removal target is an inorganic substance mainly composed of calcium carbonate, foaming is caused by reaction with calcium carbonate when a low concentration solution reaches the bath. Therefore, circulation occurs in the bath pot and in the section of the cleaning tool, and the bath pot can be cleaned without performing forced circulation.

酸性物質としては、炭酸カルシウムと反応してそれを溶解し得るものである限り特に制限されないが、銅製の風呂釜への悪影響がより小さいことから、有機カルボン酸が好ましく、水への溶解性及びカルシウム塩の溶解力が優れていることから、リンゴ酸、コハク酸、乳酸等が特に好ましい。なお、酸性物質は、1種単独で用いてもよいし、2種以上を併用してもよい。   The acidic substance is not particularly limited as long as it can react with calcium carbonate and dissolve it, but an organic carboxylic acid is preferable because it has a smaller adverse effect on the copper bath, and is soluble in water and Malic acid, succinic acid, lactic acid, and the like are particularly preferable because of their excellent solubility for calcium salts. In addition, an acidic substance may be used individually by 1 type, and may use 2 or more types together.

風呂釜洗浄剤Bに含まれる酸性物質の量は特に制限されないが、全量に対して60重量%以上、好ましくは80重量%以上とすることができる。   The amount of the acidic substance contained in the bath tub cleaning agent B is not particularly limited, but may be 60% by weight or more, preferably 80% by weight or more based on the total amount.

風呂釜洗浄剤Bは、酸性物質の他に、酸性物質による風呂釜の腐食を低減するために、腐食防止剤をさらに含んでいることが好ましい。風呂釜洗浄剤Bにおける腐食防止剤は、特に制限されないが、銅及び/又はアルミ用の腐食防止剤であることが好ましく、アゾール系の腐食防止剤であることがより好ましく、1,2,3−ベンゾトリアゾール、トリルトリアゾール等がさらに好ましい。   In addition to the acidic substance, the bathtub cleaning agent B preferably further contains a corrosion inhibitor in order to reduce the corrosion of the bathtub caused by the acidic substance. The corrosion inhibitor in the bath tub cleaning agent B is not particularly limited, but is preferably a corrosion inhibitor for copper and / or aluminum, more preferably an azole-based corrosion inhibitor, 1, 2, 3 -More preferred are benzotriazole, tolyltriazole and the like.

風呂釜洗浄剤Bに用いうる腐食防止剤の量は特に制限されないが、全量に対して0.05〜5重量%、好ましくは0.2〜2重量%とすることができる。   The amount of the corrosion inhibitor that can be used in the bath tub cleaning agent B is not particularly limited, but may be 0.05 to 5% by weight, preferably 0.2 to 2% by weight, based on the total amount.

風呂釜洗浄剤A及び風呂釜洗浄剤Bの剤型は特に制限はなく、通常の製剤の製造方法に従って、例えば粉剤、顆粒剤、等の形態をとることができるが、取り扱いの安全性及び容易性の観点から、粉剤または顆粒剤とするのが好ましい。   There are no particular restrictions on the dosage form of the bath tub cleaning agent A and the bath tub cleaning agent B, and it can take the form of, for example, powders, granules, etc., according to the usual method for producing a preparation, but it is safe and easy to handle. From the viewpoint of properties, it is preferably a powder or granule.

続いて、本発明の風呂釜洗浄方法に用いられる風呂釜洗浄用具について説明する。風呂釜洗浄用具は、風呂釜に連通し浴槽の壁面に開口された風呂水出入穴の浴槽内部側の周囲を所定の容積に区画しうる本体部と、本体の一部に設けられた洗浄剤投入口とを有しているものを用いることができ、具体的に、例えば、特願2005―038976号に記載のものを用いることができる。ここで、所定の容積としては、0.5〜20Lであることが好ましく、1〜10Lであることがより好ましく、1.5〜3Lであることがさらに好ましい。   Next, a bath tub cleaning tool used in the bath tub cleaning method of the present invention will be described. The bath tub cleaning tool is composed of a main body part that can divide the inside of the bath water access hole opened on the wall of the bathtub into the predetermined volume, and a cleaning agent provided in a part of the main body. One having an insertion port can be used. Specifically, for example, the one described in Japanese Patent Application No. 2005-038976 can be used. Here, the predetermined volume is preferably 0.5 to 20 L, more preferably 1 to 10 L, and even more preferably 1.5 to 3 L.

以下、図面を用いて、本発明の第1の風呂釜洗浄方法について説明する。図1に示すように、本発明における風呂釜洗浄用具1(以下、単に洗浄用具という)は、浴槽BT(バスタブ)の壁面に取り付けられる。本実施の形態では、浴槽BTには、外部の図示しない風呂釜に連通し浴槽の壁面に開口された風呂水出入穴部Cが設けられており、洗浄用具1を浴槽BTの壁面に取り付ける際には、この風呂水出入穴部Cの浴槽内部側の周囲を所定の容積に区画するように取り付ける。   Hereinafter, the first bath cleaning method of the present invention will be described with reference to the drawings. As shown in FIG. 1, a bath tub cleaning tool 1 (hereinafter simply referred to as a cleaning tool) in the present invention is attached to the wall surface of a bathtub BT (bathtub). In the present embodiment, the bath BT is provided with a bath water entrance / exit C which is connected to an external bath pot (not shown) and is opened on the wall of the bathtub, and the cleaning tool 1 is attached to the wall of the bathtub BT. Is attached so that the periphery of the bath water entrance / exit hole C on the inner side of the bathtub is partitioned into a predetermined volume.

なお、洗浄用具1を取り付ける際には、浴槽BT内には湯水が張られており、その水面Wは風呂水出入穴部Cの上方に位置する状態、すなわち吸吐部が完全に水没する状態になっている。そして、その様態で洗浄用具1を浴槽BTの壁面に取り付けると、洗浄用具1内に湯水が入り込み、洗浄用具1の内外の水面Wの高さは互いに同じ高さになる。   In addition, when attaching the cleaning tool 1, the hot water is stretched in the bathtub BT, and the water surface W is located above the bath water inlet / outlet portion C, that is, the state where the suction portion is completely submerged. It has become. Then, when the cleaning tool 1 is attached to the wall surface of the bathtub BT in this manner, hot water enters the cleaning tool 1 and the heights of the water surfaces W inside and outside the cleaning tool 1 become the same height.

洗浄用具1の上面は開口しており(洗浄剤投入口)、その開口部分から洗浄用具1内に風呂釜洗浄剤を投入することができる。なお、洗浄剤投入口は、洗浄剤を投入できる限り、その位置、形状、個数等に制限はない。洗浄剤は粉剤、顆粒剤、粒剤、等など、いずれの剤型ものでもよいが、本実施の形態では、図2に示すように顆粒状の物を用いた。このように洗浄用具1内に洗浄剤Tを投入すると、洗浄剤Tは気泡を出しながらゆっくり沈降、溶解してゆく。   The upper surface of the cleaning tool 1 is open (cleaning agent inlet), and the bath tub cleaning agent can be charged into the cleaning tool 1 through the opening. The position, shape, number, etc. of the cleaning agent inlet are not limited as long as the cleaning agent can be supplied. The cleaning agent may be of any dosage form such as powder, granule, granule, etc. In this embodiment, a granular product is used as shown in FIG. When the cleaning agent T is put into the cleaning tool 1 in this way, the cleaning agent T slowly settles and dissolves while releasing bubbles.

その状態で風呂釜を作動させると、図示しないポンプが作動して洗浄用具1内の洗浄剤Tの溶解液を風呂水出入穴部Cから風呂釜へと吸引する。風呂釜まで洗浄剤が到達すると、洗浄剤の溶解液が加熱されることにより洗浄剤が活性化し、過炭酸ナトリウムが溶解して生成した過酸化水素の酸化作用と炭酸ナトリウムのアルカリ作用により、湯垢等の有機物系の汚れを分解除去するとともに、過酸化水素の分解により発生する酸素ガスの作用により湯垢を剥離除去する。   When the bath is operated in this state, a pump (not shown) is operated and the solution of the cleaning agent T in the cleaning tool 1 is sucked from the bath water inlet / outlet portion C into the bath. When the cleaning agent reaches the bath, the cleaning solution is activated by heating the cleaning solution, and due to the oxidizing action of hydrogen peroxide generated by the dissolution of sodium percarbonate and the alkaline action of sodium carbonate, In addition to decomposing and removing organic contaminants such as, the scales are peeled and removed by the action of oxygen gas generated by the decomposition of hydrogen peroxide.

そして、風呂釜を通過した洗浄剤の溶解液は、風呂水出入穴部Cから洗浄用具1内に吐出される。このように吐出された洗浄剤の溶解液は、高濃度の洗浄剤を含んでおり、洗浄用具1によって浴槽BT内と隔絶され、ふたたび風呂水出入穴部Cから風呂釜へと吸引される。   Then, the solution of the cleaning agent that has passed through the bath tub is discharged from the bath water entrance / exit hole C into the cleaning tool 1. The detergent solution thus discharged contains a high-concentration detergent, is isolated from the inside of the bathtub BT by the cleaning tool 1, and is again sucked from the bath water entrance / exit C to the bath.

ところで、洗浄用具1の本体部は、図3に示すように枠状の基体部2と、この基体部2に対して着脱自在に取り付けられる隔壁部3とから構成されている。基体部2は可撓性を有する樹脂で一体に成形されており、浴槽BTの平面に取り付けるための吸盤21が4個所に形成されている。また、基体部2の左右側辺および底辺には、外方に若干湾曲したスカート部に相当するシール部22が同じく基体部2に一体に形成されている。このシール部22の機能は後述するが、このシール部22が流出構造を構成する。   By the way, as shown in FIG. 3, the main body portion of the cleaning tool 1 includes a frame-shaped base portion 2 and a partition wall portion 3 that is detachably attached to the base portion 2. The base portion 2 is integrally formed of a flexible resin, and suction cups 21 for attachment to the flat surface of the bathtub BT are formed at four locations. In addition, a seal portion 22 corresponding to a skirt portion slightly curved outward is formed integrally with the base portion 2 on the left and right sides and the bottom side of the base portion 2. Although the function of the seal portion 22 will be described later, the seal portion 22 constitutes an outflow structure.

基体部2の左右および底部には内側に保持部23が形成されており、かつ、この保持部23の外側には、図4に示すように保持溝24が形成されている。そして、この保持溝24に隔壁部3が差し込まれることによって、隔壁部3が基体部2に取り付けられるように構成されている。   Holding parts 23 are formed on the inner sides of the left and right and bottom parts of the base part 2, and holding grooves 24 are formed on the outer side of the holding part 23 as shown in FIG. 4. The partition wall 3 is attached to the base body 2 by inserting the partition wall 3 into the holding groove 24.

なお、保持部23の外周面側には係合突起25が形成されており、隔壁部3を保持溝24に差し込むと、隔壁部3に形成した係合窓31にこの係合突起25が係合して、隔壁部3が基体部2から不用意に脱落しないようにした。保持部23は上述のように可撓性を有する樹脂で成形されているので、基体部2から隔壁部3を取り外すことは容易に行える。   An engagement protrusion 25 is formed on the outer peripheral surface side of the holding portion 23, and when the partition wall 3 is inserted into the holding groove 24, the engagement protrusion 25 is engaged with the engagement window 31 formed in the partition wall 3. In addition, the partition wall portion 3 was prevented from inadvertently dropping off from the base body portion 2. Since the holding part 23 is formed of a flexible resin as described above, the partition part 3 can be easily detached from the base part 2.

一方、隔壁部3は、図5に示すように、基体部2から取り外した状態では折り畳むことができ、洗浄作業終了後に隔壁部3を基体部2から取り外し、図5に示すように折り畳めば収納スペースを小さくすることができる。なお、本実施の形態では、左右側面32を内側にたたみ、底面33を山形に折り曲げることにより隔壁部3を折り畳むようにした。   On the other hand, the partition wall 3 can be folded when removed from the base 2 as shown in FIG. 5, and is stored by removing the partition 3 from the base 2 after the cleaning operation and folding it as shown in FIG. Space can be reduced. In the present embodiment, the partition wall 3 is folded by folding the left and right side surfaces 32 inward and folding the bottom surface 33 into a mountain shape.

ところで、上述のシール部22は、図6に示すように、基体部2を浴槽BTの壁面に取り付けると、先端を外側にして撓むことになる。そのため自らの弾性力によって浴槽BTの壁面に当接することになる。そのような状態になると、浴槽BTの内部の湯水が洗浄用具1の内部に流出しようとしてもシール部22に阻まれて流入することができない。また、浴槽BT内の水面Wの高さと洗浄用具1内の水位とは同じ高さになるので、洗浄用具1の内部から浴槽BTに向かう流れが生じず、そのため洗浄用具1内の洗浄剤の溶解液が浴槽Bへ漏出することがシール部22によって防止される。   By the way, as shown in FIG. 6, the above-described seal portion 22 is bent with the tip end outside when the base portion 2 is attached to the wall surface of the bathtub BT. Therefore, it will contact | abut to the wall surface of bathtub BT by own elastic force. If it will be in such a state, even if the hot water in the bathtub BT tries to flow out into the cleaning tool 1, it is blocked by the seal portion 22 and cannot flow in. Moreover, since the height of the water surface W in the bathtub BT and the water level in the cleaning tool 1 are the same height, there is no flow from the inside of the cleaning tool 1 toward the bathtub BT, so that the cleaning agent in the cleaning tool 1 does not flow. The sealing portion 22 prevents the dissolved liquid from leaking into the bathtub B.

なお、本実施の形態では基体部2を浴槽BTの壁面に取り付けるために吸盤21を用いた。吸盤21は内部を真空にすることによって外部からの圧力で吸着するものである。したがって、本実施に形態のように吸盤21を水中で使用すると水圧が吸着力として作用し、空気中で使用する場合に比べて強力な吸着力を発揮させることができる。そのため、洗浄作業中に洗浄用具1を手などで保持しなくても、浴槽BTの壁面に強力に固定される。   In addition, in this Embodiment, in order to attach the base | substrate part 2 to the wall surface of bathtub BT, the suction cup 21 was used. The suction cup 21 is adsorbed by pressure from the outside by making the inside vacuum. Therefore, when the suction cup 21 is used in water as in the present embodiment, the water pressure acts as an adsorption force, and a stronger adsorption force can be exhibited compared to the case where it is used in the air. Therefore, even if the cleaning tool 1 is not held by hand during the cleaning operation, it is strongly fixed to the wall surface of the bathtub BT.

さて、上述のように所定時間継続してポンプおよび風呂釜を作動させて十分に風呂釜の洗浄が終了すると、ポンプおよび風呂釜を作動させたままの状態で、洗浄用具1内に上方の開口部分から清浄な水を注入することが好ましい。すると、洗浄用具1内の水位が周囲の水面Wよりも上昇する。そのため、洗浄用具1内の圧力が周りの圧力よりも高くなり、洗浄用具1内の洗浄液が、上記シール部22と浴槽BTの壁面との間を通って浴槽BT側へと漏出する。また洗浄用具の底部にホース等で清浄な水を注入すると水の注入量が多くても上方の開口部から用具内の洗浄液がオーバーフローにより用具外に排出されるため、短時間で用具内の洗浄液の清浄への置換が可能となる。   Now, when the pump and bath tub are continuously operated for a predetermined time as described above and the bath tub is sufficiently cleaned, the upper opening in the cleaning tool 1 is left with the pump and bath tub operating. It is preferable to inject clean water from the part. Then, the water level in the cleaning tool 1 rises above the surrounding water surface W. Therefore, the pressure in the cleaning tool 1 becomes higher than the surrounding pressure, and the cleaning liquid in the cleaning tool 1 leaks out between the seal portion 22 and the wall surface of the bathtub BT to the bathtub BT side. In addition, when clean water is injected into the bottom of the cleaning tool with a hose or the like, the cleaning liquid in the tool is discharged out of the tool due to overflow from the upper opening even if the amount of water injected is large. Can be replaced with clean.

洗浄用具1内に清浄な水を注入すれば、洗浄用具1内の湯温が低下するので、風呂釜はそのまま作動し続ける。そして、洗浄用具1内の洗浄剤の溶解液が清浄な水に置換されるので、風呂釜には清浄な湯水が循環されすすがれることにより、洗浄液が風呂釜内に残らない。これで風呂釜の洗浄工程が終了し、その後、浴槽の排水口の栓を外して浴槽BT内の湯水を排水し、最後に洗浄用具1を浴槽BTの壁面から取り外す。   If clean water is poured into the cleaning tool 1, the temperature of the hot water in the cleaning tool 1 is lowered, so that the bath tub continues to operate. And since the solution of the cleaning agent in the cleaning tool 1 is replaced with clean water, clean hot water is circulated and rinsed in the bath, so that no cleaning liquid remains in the bath. This completes the washing process of the bathtub, and then removes the stopper of the drain of the bathtub to drain the hot water in the bathtub BT, and finally removes the cleaning tool 1 from the wall of the bathtub BT.

上記実施の形態では、吸水口と吐出口とが一体になった1つ穴式の物で説明したが、本発明を2つ穴式の物に適用しても何ら問題はない。ただし、2つ穴式の物では、風呂釜に湯水をポンプで強制的に循環させるのではなく、自然対流によって循環させている。   In the above embodiment, the description has been given of the one-hole type in which the water suction port and the discharge port are integrated. However, there is no problem even if the present invention is applied to the two-hole type. However, in the case of the two-hole type, hot water is not forcedly circulated in the bath pot by a pump, but is circulated by natural convection.

また、特に、風呂水が高温になると循環が不十分になる可能性のある自然循環式風呂釜においては、図7に示すように、隔壁部3の一部に置換手段として機能する置換窓34を設けてもよい。この置換窓34は水面Wを上下に跨ぐように形成しており、吸水口OLから吸引され吐出口ILから吐出された高温の湯水の一部が、この置換窓34を通って浴槽BT側へ流出する。すると、その高温水の流出に伴って、浴槽BT内の低温の湯水が置換窓34を通って洗浄用具1内に流入し、洗浄用具1内の湯温を低下させ、洗浄用具1内の温度格差を小さくする。そして、上述の場合と同じく、洗浄完了後に上方から清浄な水を注入して風呂釜内の洗浄液を排出させることが好ましい。   In particular, in a natural circulation bath where there is a possibility that circulation may be insufficient when the bath water becomes high temperature, as shown in FIG. May be provided. This replacement window 34 is formed so as to straddle the water surface W up and down, and a part of high-temperature hot water sucked from the water inlet OL and discharged from the discharge port IL passes through the replacement window 34 to the bathtub BT side. leak. Then, along with the outflow of the high temperature water, the low temperature hot water in the bathtub BT flows into the cleaning tool 1 through the replacement window 34, lowers the hot water temperature in the cleaning tool 1, and the temperature in the cleaning tool 1. Reduce inequality. As in the case described above, it is preferable to inject clean water from above after the cleaning is completed to discharge the cleaning liquid in the bath.

ところで、上記の実施の形態では、基体部2を浴槽BTの壁面に取り付けるために、4個の円形の吸盤21を用いたが、さらに吸着力を高めると共に、基部2の浴槽BTからの浮き上がりを防止するため、図8に示すように、円形ではなく長尺吸盤26を基部2に一体に形成してもよい。この長尺吸盤26は長手方向が基体部2の枠に沿うように形成されており、本実施の形態では、合計3個の長尺吸盤26を形成した。なお、基体部2についても上方に開放されたコ字状に形成してもよい。   By the way, in said embodiment, in order to attach the base | substrate part 2 to the wall surface of the bathtub BT, although the four circular suction cups 21 were used, while raising the adsorption | suction power further, the floating from the bathtub BT of the base part 2 was used. In order to prevent this, as shown in FIG. 8, a long suction cup 26 may be formed integrally with the base 2 instead of being circular. The long suction cups 26 are formed so that the longitudinal direction thereof is along the frame of the base portion 2. In the present embodiment, a total of three long suction cups 26 are formed. In addition, you may form the base | substrate part 2 in the U shape open | released upwards.

このように構成することにより、基体部2の全体が浴槽BTに吸着するので、浴槽BTからの基体部2の浮き上がりが防止される。なお、各長尺吸盤26の相互間にはシール部22を形成した。このシール部22は長尺吸盤26に連続して形成されているので、浴槽BTに吸着した状態で基体部2を浴槽BTから外す際に、シール部22を持ち上げれば、長尺吸盤26を浴槽BTから容易に外すことができる。   By comprising in this way, since the whole base | substrate part 2 adsorb | sucks to the bathtub BT, the floating of the base | substrate part 2 from bathtub BT is prevented. A seal portion 22 was formed between the long suction cups 26. Since the seal portion 22 is formed continuously with the long suction cup 26, when the base portion 2 is removed from the bathtub BT while adsorbed to the bathtub BT, if the seal portion 22 is lifted, the long suction cup 26 is removed. It can be easily removed from the bathtub BT.

また、図5を用いて隔壁部3の折り畳みの形態を説明したが、図9に示すように、基体部2に隔壁部3を取り付けたままの状態で隔壁部3を折り畳みようにしてもよい。図9に示した形態では、底面33を内側にたたみ、左右側面32を同じく内側に山形に折り込むことによって、隔壁部3の体積を小型化するようにした。   Moreover, although the form of folding the partition wall portion 3 was described with reference to FIG. 5, as shown in FIG. 9, the partition wall portion 3 may be folded while the partition wall portion 3 remains attached to the base body portion 2. . In the embodiment shown in FIG. 9, the volume of the partition wall portion 3 is reduced by folding the bottom surface 33 inward and folding the left and right side surfaces 32 into a mountain shape.

なお、本発明は上記した形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々の変更を加えてもかまわない。例えば、上記実施に形態では本体部である基体部2と隔壁部3とを別個に形成したが、本体部を一体に形成してもよい。   In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention. For example, in the above embodiment, the base body portion 2 and the partition wall portion 3 which are the main body portions are separately formed, but the main body portion may be integrally formed.

以下、実施例により本発明をより具体的に説明するが、本発明の技術的範囲はこれらの例示に限定されるものではない。   EXAMPLES Hereinafter, although an Example demonstrates this invention more concretely, the technical scope of this invention is not limited to these illustrations.

(1)発泡性過炭酸ナトリウムの調製
粒径150〜1000ミクロンの過炭酸ナトリウムの顆粒25kgを、加熱用ジャケットを具備した直径320mm、長さ1600mmの横円筒形加熱機に入れて、10回/分で回転させながら120℃で30分間加熱処理を行った。この処理の間、室温の空気100m/hを横円筒加熱機の一端から吹き込み他端から排出した。
(1) Preparation of effervescent sodium percarbonate 25 kg of sodium percarbonate granules having a particle size of 150 to 1000 microns were placed in a horizontal cylindrical heating machine having a diameter of 320 mm and a length of 1600 mm equipped with a heating jacket, 10 times / Heat treatment was performed at 120 ° C. for 30 minutes while rotating in minutes. During this treatment, 100 m 3 / h of room temperature air was blown from one end of the horizontal cylinder heater and discharged from the other end.

(2)起泡剤の添加
上述の(1)で得られた発泡性過炭酸ナトリウムを100gずつ計量し、そのうちのひとつを実施例組成物1とした。残りの発泡性過炭酸ナトリウムのそれぞれに、後述の表1に記載されたように起泡剤、添加剤を所定量添加し、ポリ袋内でそれぞれを等一に混合して実施例組成物2〜7とした。また、比較例として、発泡性でない通常の過炭酸ナトリウム100gを比較例組成物1とし、市販の風呂釜洗浄剤(通常の過炭酸ナトリウム、炭酸ナトリウム及び界面活性剤の混合物)100gを比較例組成物2とした。
(2) Addition of foaming agent 100 g of effervescent sodium percarbonate obtained in the above (1) was weighed, and one of them was used as Example Composition 1. A predetermined amount of foaming agent and additives were added to each of the remaining effervescent sodium percarbonate as described in Table 1 below, and each was mixed equally in a plastic bag. It was set to ~ 7. Further, as a comparative example, 100 g of ordinary sodium percarbonate which is not foamable is used as comparative example composition 1, and 100 g of a commercially available bath cleaning agent (a mixture of ordinary sodium percarbonate, sodium carbonate and a surfactant) is used as a comparative example composition. It was set as thing 2.

(3)溶解試験
幅130mm×厚さ90mm×高さ300mmの角型の透明容器を7つ用意し、20〜22℃の水2000mlをそれぞれに充填した。上述の(2)で調製した実施例組成物1〜5及び比較例組成物1〜2のそれぞれを2〜3秒間でそれぞれの容器内に投入した。投入から2分経過後に容器底に沈降した水に不溶の顆粒の量を目視で判断するとともに、容器の底から20〜30mm、80〜90mm(ほぼ中間位置)、140〜150mm(液面下20〜30mm、容器液面高さ170mm)の3箇所から溶液を静かに採取し有効酸素濃度を分析した。過炭酸ナトリウムが溶解すると過酸化水素から酸素が発生し、それが容器中の水溶液に溶けて水溶液中の有効酸素濃度が上昇するため、水溶液中の有効酸素濃度の数値を検出することによって、過炭酸水素ナトリウムの溶解の程度を調べることができる。
(3) Dissolution test Seven square transparent containers having a width of 130 mm, a thickness of 90 mm, and a height of 300 mm were prepared, and each was filled with 2000 ml of water at 20 to 22 ° C. Each of Example Compositions 1 to 5 and Comparative Example Compositions 1 to 2 prepared in (2) above was charged into each container in 2 to 3 seconds. The amount of granules insoluble in water settled on the bottom of the container 2 minutes after the addition was visually determined, and 20-30 mm, 80-90 mm (almost intermediate position), 140-150 mm (under the liquid level 20) from the bottom of the container. The solution was gently collected from three locations (˜30 mm, container liquid level height 170 mm), and the effective oxygen concentration was analyzed. When sodium percarbonate dissolves, oxygen is generated from hydrogen peroxide, which dissolves in the aqueous solution in the container and increases the effective oxygen concentration in the aqueous solution. Therefore, by detecting the numerical value of the effective oxygen concentration in the aqueous solution, excess oxygen is detected. The degree of dissolution of sodium bicarbonate can be examined.

(4)試験結果
組成物の組成と溶解試験結果を表1に示す。
(4) Test result Table 1 shows the composition of the composition and the dissolution test result.

Figure 0004895717
Figure 0004895717

PEG :PEG300
ノニオンA:低起泡性のエチレンオキサイド・プロピレンオキサイドブロック
ポリマー
アニオンB:ドデシルベンゼンスルフォン酸Na
アニオンC:スルフォコハク酸ジオクチルNa
ノニオンD:ソルビタンモノオレート
消泡剤 :シリコン系消泡剤
腐食防止剤:無水ケイ酸ソーダ微粉末
(粒子径150μm以下、SiO/NaOモル比:3)
PEG: PEG300
Nonion A: Low foaming ethylene oxide / propylene oxide block
Polymer anion B: sodium dodecylbenzenesulfonate
Anion C: Dioctyl sodium sulfosuccinate
Nonion D: Sorbitan monooleate Antifoaming agent: Silicone antifoaming agentCorrosion inhibiting agent: Anhydrous sodium silicate fine powder
(Particle diameter 150 μm or less, SiO 2 / Na 2 O molar ratio: 3)

表1の結果から分かるように、通常の過炭酸ナトリウム(比較例組成物1)は多量の過炭酸ナトリウムが容器の底に沈み、溶けた過炭酸ナトリウムも下部に集中しているのに対し、本発明に用いる発泡性過炭酸ナトリウム(実施例組成物1)は少量しか容器の底に沈まず、また溶液全体にほぼ同様に溶解している。なお、市販風呂釜洗浄剤(比較例組成物2)は、溶液のほぼ全体に同様に溶けてはいる。これは洗浄剤の粒子がかなり細かい上、界面活性剤が多く含まれているためであると考えられるが、実施例組成物1〜7と比較して、溶解している過炭酸ナトリウムはかなり少ない。また、起泡剤を加えた実施例組成物2〜7は、発泡性過炭酸ナトリウムのみの実施例組成物1に比べて、容器底部の残存量は少なく、より多くの過炭酸ナトリウムが容器全体に溶解していることが分かる。このように発泡性過炭酸ナトリウムを含む風呂釜洗浄剤は溶解性が高く分散性もよいので、容器の底部等に残存する量が減少し、効率良く使用することができる。その結果、発泡性過炭酸ナトリウムを含む風呂釜洗浄剤は、本発明の風呂釜洗浄方法において使用した場合に、有機物の分解作用、微生物の殺菌作用及び膜状物の剥離作用を十分に発揮することができる。   As can be seen from the results in Table 1, normal sodium percarbonate (comparative composition 1) has a large amount of sodium percarbonate sinking to the bottom of the container, and dissolved sodium percarbonate is concentrated in the lower part. Only a small amount of the foamable sodium percarbonate (Example Composition 1) used in the present invention does not sink to the bottom of the container, and is dissolved in almost the same manner throughout the solution. In addition, the commercially available bath cleaner (Comparative Example Composition 2) is similarly dissolved in almost the entire solution. This is considered to be because the particles of the cleaning agent are quite fine and contain a large amount of surfactant, but the dissolved sodium percarbonate is considerably less as compared with Example Compositions 1 to 7. . In addition, Example Compositions 2 to 7 to which a foaming agent was added had less residual amount at the bottom of the container than Example Composition 1 with only foamable sodium percarbonate, and more sodium percarbonate was present in the entire container. It can be seen that As described above, since the bath detergent containing foamable sodium percarbonate has high solubility and good dispersibility, the amount remaining in the bottom of the container is reduced and can be used efficiently. As a result, the bath rinsing agent containing effervescent sodium percarbonate sufficiently exhibits the decomposition action of organic substances, the sterilization action of microorganisms, and the peeling action of film-like substances when used in the bath rinsing method of the present invention. be able to.

(5)湯垢除去試験に用いる製剤の調製
上記(1)で作製した発泡性過炭酸ナトリウムの顆粒100gに、表2、表3記載の酵素と界面活性剤を添加して、実施例8〜18及び比較例3の製剤を調製した。
(5) Preparation of preparation used for scale removal test Enzymes and surfactants listed in Tables 2 and 3 were added to 100 g of effervescent sodium percarbonate granules prepared in (1) above, and Examples 8 to 18 were added. And the formulation of Comparative Example 3 was prepared.

(6)モデル湯垢の調製
300ml三角フラスコに一般細菌用液体培地200mlをとり、オートクレーブで滅菌した。2つ穴式風呂釜から採取した湯垢をホモジナイザーで微粉砕した菌液1mlをこの培地に添加し、30℃で10日間振騰培養した。この培養液0.2mlをスライドガラスの下半分の面に均一に塗布し、室温で2時間放置し乾燥させた。乾燥した塗布面に、再度、培養液0.2mlを塗布、乾燥する作業を繰り返し実施し、合計8回培養液を塗布、乾燥したスライドガラスを2日間室温で放置し完全に乾燥させた。このスライドガラスの塗布面全体を100mlの水に1時間浸漬させ、塗布面の水溶性成分を溶出させた。水を交換して、同様の浸漬を3回行った後、スライドガラスを室温で放置して乾燥させた。スライドガラスの表面に付着している茶褐色の付着物を採取し、IR分析を行った。その結果、この付着物のIRスペクトルは、上述の培地に添加した湯垢のIRスペクトルと一致することが確認された。
(6) Preparation of model scale In a 300 ml Erlenmeyer flask, 200 ml of a general bacterial liquid medium was taken and sterilized by an autoclave. 1 ml of a bacterial solution obtained by finely pulverizing a scale collected from a two-hole bath with a homogenizer was added to this medium, and cultured with shaking at 30 ° C. for 10 days. 0.2 ml of this culture solution was evenly applied to the lower half surface of the slide glass and left to dry at room temperature for 2 hours. The operation of applying and drying 0.2 ml of the culture solution again on the dried coated surface was repeated, and the culture solution was applied a total of 8 times. The dried slide glass was left to stand at room temperature for 2 days to be completely dried. The entire coated surface of the slide glass was immersed in 100 ml of water for 1 hour to elute water-soluble components on the coated surface. After the water was changed and the same immersion was performed three times, the slide glass was left to dry at room temperature. A brown-colored deposit adhering to the surface of the slide glass was collected and subjected to IR analysis. As a result, it was confirmed that the IR spectrum of this deposit coincided with the IR spectrum of the scale added to the above-mentioned medium.

(7)湯垢除去試験
200mlのビーカーに水100mlをとり、このビーカーを50±2℃の恒温水槽に浸漬させた。所定温度に達したビーカー内の水に、上記(5)で調整したいずれかの製剤3gを添加、混合し溶解させて、薬液を得た。一方、上述の(6)でIR分析に用いたのと同様のスライドガラスを、上述の(6)と同様の手順で作製した。得られたスライドガラスを3時間水に浸漬した。このスライドガラスの塗布面を上述の薬液に30分間完全に浸漬させた後、スライドガラスを取り出し、多量の水中に浸漬させてスライドガラスから薬液を除去した後、スライドガラスを室温で放置して乾燥させた。この乾燥したスライドガラスに残存している付着物の量を目視観察することにより、それぞれの薬液の湯垢除去効果を判定した。試験結果を表2、表3に示す。
(7) Scale removal test 100 ml of water was taken in a 200 ml beaker, and this beaker was immersed in a constant temperature water bath at 50 ± 2 ° C. 3 g of any of the preparations prepared in (5) above was added to, mixed with, and dissolved in the water in the beaker that had reached a predetermined temperature to obtain a chemical solution. On the other hand, a slide glass similar to that used for IR analysis in (6) above was produced in the same procedure as in (6) above. The obtained slide glass was immersed in water for 3 hours. After the slide glass application surface is completely immersed in the above chemical solution for 30 minutes, the slide glass is taken out, immersed in a large amount of water to remove the chemical solution from the slide glass, and then the slide glass is left at room temperature to dry. I let you. The amount of deposits remaining on the dried slide glass was visually observed to determine the scale removal effect of each chemical solution. The test results are shown in Tables 2 and 3.

Figure 0004895717
Figure 0004895717

Figure 0004895717
Figure 0004895717

表2及び表3中の記号は下記の内容を表す。
<湯垢除去効果>
× :湯垢除去部分なし
×△:湯垢除去面積10%以下
△ :湯垢除去面積10〜30%
△○:湯垢除去面積30〜50%
○ :湯垢除去面積50〜80%
○◎:湯垢除去面積80%以上
◎ :湯垢完全除去
<成分>
プロテアーゼ:タンパク質消化力 10,000u/g 以上
αアミラーゼ:デンプン糊精化力 10,000u/g 以上
リパーゼ :脂肪消化力 10,000u/g 以上
アニオンE :ラウリル硫酸ナトリウム 粉末
アニオンF :αオレフィンスルフォン酸ナトリウム
アニオンG :ナフタレンスルフォン酸縮合物
ノニオンH :ポリオキシエチレンラウリルエーテル
ノニオンI :ポリオキシエチレン・ポリオキシエプロピレンブロックポリマー
The symbols in Tables 2 and 3 represent the following contents.
<Effect of scale removal>
×: No scale removal part × △: Scale removal area 10% or less △: Scale removal area 10-30%
Δ: Scale removal area 30-50%
○: Scale removal area 50-80%
○ ◎: Scale removal area of 80% or more ◎: Scale removal completely <Ingredients>
Protease: Protein digestion power 10,000 u / g or more α-amylase: Starch paste refinement power 10,000 u / g or more Lipase: Fat digestion power 10,000 u / g or more Anion E: Sodium lauryl sulfate powder Anion F: α-olefin sulfonic acid Sodium anion G: Naphthalene sulfonic acid condensate Nonion H: Polyoxyethylene lauryl ether Nonion I: Polyoxyethylene / polyoxyepropylene block polymer

発泡性過炭酸ナトリウムと酵素(プロテアーゼ)を併用することにより、著しい湯垢除去効果を示した(表2の実施例8、9及び比較例3参照)。また、発泡性過炭酸ナトリウムに加えて、プロテアーゼとアミラーゼを両方用いると、発泡性過炭酸ナトリウムとそれらのいずれかの酵素を用いる場合に比べて、用いる酵素量が少ないにもかかわらず、優れた湯垢除去効果を示した(表2の実施例9、10及び12参照)。   By using effervescent sodium percarbonate and an enzyme (protease) in combination, a remarkable scale removing effect was shown (see Examples 8 and 9 and Comparative Example 3 in Table 2). Also, in addition to effervescent sodium percarbonate, both protease and amylase were superior to the case of using effervescent sodium percarbonate and any of those enzymes, although the amount of enzyme used was small. The scale removal effect was shown (see Examples 9, 10 and 12 in Table 2).

(8)風呂釜洗浄試験に用いる製剤の調製
発泡性過炭酸ナトリウム:100g、無水ケイ酸ソーダ微粉末:6g、プロテアーゼ:1g、ナフタレンスルフォン酸縮合物:1g、PEG300:1gを均一に混合し、製剤Aを得た。
リンゴ酸顆粒:200g、1,2,3ベンゾトリアゾール:1gを均一に混合し、製剤Bを得た。
(8) Preparation of preparation used for bath washing test Foamable sodium percarbonate: 100 g, anhydrous sodium silicate fine powder: 6 g, protease: 1 g, naphthalene sulfonic acid condensate: 1 g, PEG 300: 1 g are uniformly mixed. Formulation A was obtained.
Malic acid granules: 200 g and 1,2,3 benzotriazole: 1 g were uniformly mixed to obtain a preparation B.

(9)風呂釜洗浄試験方法
家庭で通常に使用している2つ穴式風呂釜の穴からファイバースコープを挿入し、風呂釜内壁の状態を観察した後、浴槽壁の上部の穴の5cm上まで水を張った。浴槽壁の風呂釜連結間口の両方を覆い、かつ用具の上部が浴槽内水面の上に出るような状態になるように、図8に記載の風呂釜洗浄用具を浴槽壁に吸盤で固定し、製剤Aを用具内に全量投入し溶解した。風呂釜に点火して2分間風呂釜を運転することにより、用具内の洗浄液を風呂釜内に循環させた。そのまま10分間風呂釜を停止させ放置した後、ホースを用いて用具内の底部に清浄な水道水を注いで、用具内の液体をオーバーフローさせながら、風呂釜を運転し、用具内及び風呂釜内の洗浄液を清浄な水で置換した。風呂釜を停止した後、浴槽内の汚染水(洗浄液と汚れの混濁液)を排水し、しかる後に用具を取り外し、ファイバースコープで風呂釜内を観察した。再度、水道水を浴槽に上穴の5cm上まで張って、先ほどと同様に、風呂釜洗浄用具を設置し、用具内に風呂釜洗浄剤Bを全量投入し、用具内で攪拌して溶解させた。風呂釜を1分運転させた後、10分放置する操作を3回繰り返した。用具内に清浄な水道水を注いで、用具内の液体をオーバーフローさせながら、風呂釜を運転し、用具内及び風呂釜内の洗浄液を清浄な水で置換した。風呂釜を停止した後、浴槽内の汚染水(洗浄液と汚れの混濁液)を排水し、しかる後に用具を取り外し、ファイバースコープで風呂釜内を観察した。
(9) Bath tub cleaning test method Insert a fiberscope from the hole of a two-hole bath tub that is normally used at home, and observe the state of the inner wall of the bath tub. Watered up to. The bath tub cleaning tool shown in FIG. 8 is fixed to the bathtub wall with a suction cup so as to cover both of the tub wall frontage of the tub wall and the upper part of the tool comes out above the water surface in the tub. The entire amount of Formulation A was put into the device and dissolved. By igniting the bath tub and operating the bath tub for 2 minutes, the cleaning liquid in the tool was circulated in the bath tub. Stop the bath for 10 minutes and let it stand. Then, use a hose to pour clean tap water into the bottom of the tool, overflow the liquid in the tool, and operate the bath, in the tool and in the bath. The cleaning solution was replaced with clean water. After the bath was stopped, the contaminated water in the bathtub (cleaning liquid and turbid solution of dirt) was drained, and then the tools were removed and the inside of the bath was observed with a fiberscope. Again, tap water into the bathtub up to 5cm above the top hole, and install the bath tub cleaning tool as before. Put the entire amount of bath tub cleaner B into the tub and stir and dissolve in the tub. It was. After the bath was operated for 1 minute, the operation of leaving it for 10 minutes was repeated three times. Clean tap water was poured into the tool, and the bath was operated while the liquid in the tool overflowed, and the cleaning liquid in the tool and the bath was replaced with clean water. After the bath was stopped, the contaminated water in the bathtub (cleaning liquid and turbid solution of dirt) was drained, and then the tools were removed and the inside of the bath was observed with a fiberscope.

(10)風呂釜洗浄試験
風呂釜設置後、3年経過した風呂釜付浴槽を持っている3つの家庭(4人家族2軒、3人家族1軒)において、上記(9)の方法にしたがってそれぞれ風呂釜洗浄試験を行った。洗浄前の風呂釜内壁の観察の結果、いずれの家庭でも、風呂釜内に茶褐色の軟質付着物が認められた。上記製剤Aを用具内の水に溶解して風呂釜を2分間運転させると、用具内の水に多量の泡が発生し、いずれの風呂釜においてもその泡の中に茶褐色の有機性付着物の断片が認められた。製剤Aでの洗浄後の風呂釜の観察の結果、2つの家庭の風呂釜では茶褐色の付着物はわずかしか認められず、残りの1つの家庭の風呂釜では付着物は認められたが明らかに減少していることが確認された。これにより、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤が、実際の風呂釜においても風呂釜内の有機付着物の除去効果を発揮することが確認された。なお、いずれの風呂釜内部も有機性付着物が除去された後には、白色のスケールがほぼ全面を覆っていた。この白色のスケールの一部を採取し、分析したところ、炭酸カルシウムが主成分であることがわかった。
(10) Bath kettle cleaning test In 3 households (2 families of 4 people, 3 families of 1 family) having bath tubs with baths that have passed 3 years after the installation of the bath kettle, follow the method of (9) above. Each was subjected to a bath washing test. As a result of observing the inner wall of the bath before washing, brownish brown soft deposits were found in the bath at any household. When the above preparation A is dissolved in the water in the tool and the bath is operated for 2 minutes, a large amount of foam is generated in the water in the tool, and in any bath, the brown organic deposit is in the foam. Fragments were observed. As a result of observation of the bathtub after washing with Formulation A, only two brown bath deposits were observed in the two household bath baths, and only one deposit was observed in the remaining one bath bath. It was confirmed that it decreased. Thereby, it was confirmed that the bath tub cleaning agent containing foamable sodium percarbonate exhibits the effect of removing organic deposits in the bath tub even in an actual bath tub. It should be noted that the white scale covered almost the entire surface after the organic deposits were removed in any of the baths. A portion of this white scale was collected and analyzed, and it was found that calcium carbonate was the main component.

次に、上記製剤Bを用具内の水に添加、溶解した後、風呂釜を1分運転させ、その後10分放置したところ、いずれの風呂釜でも、風呂釜の口から多量の泡が発生し、その泡と共に有機性の付着物が一緒に排出される現象が認められた。製剤Bで洗浄した後の風呂釜内を観察した結果、2つの家庭の風呂釜では白色のスケールの大部分が除去されており、残りの1つの家庭の風呂釜でもスケールは残っているものの明らかに減少していることが確認された。これにより、酸性物質を含有する風呂釜洗浄剤のスケール除去効果が、実際の風呂釜において確認された。また、製剤Bで洗浄する前の風呂釜の観察で認められた、少量の有機性付着物は、製剤Bでの洗浄によりスケールが減少したことに伴い、いずれの風呂釜でも完全に除去されたことが確認できた。   Next, after the preparation B was added and dissolved in the water in the device, the bath was allowed to run for 1 minute, and then left for 10 minutes. In either bath, a large amount of foam was generated from the mouth of the bath. A phenomenon was observed in which organic deposits were discharged together with the bubbles. As a result of observing the inside of the bath after washing with the preparation B, it was clear that most of the white scale was removed in the two household baths, and the scale remained in the remaining one. It was confirmed that the number decreased. Thereby, the scale removal effect of the bath cleaner containing an acidic substance was confirmed in an actual bath. Moreover, a small amount of organic deposits observed in the observation of the bath before washing with the preparation B was completely removed in any of the baths as the scale was reduced by washing with the preparation B. I was able to confirm.

(11)風呂釜洗浄剤拡散試験
2つ穴式風呂釜を備えた浴槽壁の上部の穴の5cm上まで水(水温40℃)を張った。浴槽壁の風呂釜連結間口の両方を覆い、かつ用具の上部が浴槽内水面の上に出るような状態になるように、図8に記載の風呂釜洗浄用具を浴槽壁に吸盤で固定し、発泡性過炭酸ナトリウム100g、無水ケイ酸ソーダ微粉末6gを混合した製剤aを用具内に投入した。1分間放置して薬剤aを拡散させた後、風呂釜内管の所定の場所から溶液を静かに採取し有効酸素濃度を分析した。なお、風呂釜内管は、上下穴を正面視して、下穴から奥方向に延び(下穴正面奥)、垂直左(右)方向に屈曲して延び(下穴奥最深部)、垂直上方向に屈曲して延び(上穴最深部)、垂直右(左)方向に屈曲して延び(上穴正面奥)、さらに手前方向に屈曲して延びて上穴と連通している。
(11) Bath kettle cleaning agent diffusion test Water (water temperature: 40 ° C.) was applied up to 5 cm above the upper hole of the bathtub wall equipped with a two-hole bath. The bath tub cleaning tool shown in FIG. 8 is fixed to the bathtub wall with a suction cup so as to cover both of the tub wall frontage of the tub wall and the upper part of the tool comes out above the water surface in the tub. Formulation a in which 100 g of effervescent sodium percarbonate and 6 g of anhydrous sodium silicate fine powder were mixed was put into the device. After allowing the drug a to diffuse for 1 minute, the solution was gently collected from a predetermined place in the tube in the bath and analyzed for effective oxygen concentration. In addition, the bath inner pipe extends from the bottom hole to the back (front side of the bottom hole), bent in the vertical left (right) direction (the deepest part at the bottom of the bottom hole), and vertically It bends and extends upward (the deepest part of the upper hole), bends and extends in the vertical right (left) direction (the upper front of the upper hole), and further bends and extends toward the front to communicate with the upper hole.

Figure 0004895717
Figure 0004895717

表4に示すように、上穴正面奥及び下穴正面奥においては、用具内と同様に高い有効酸素量が示され、上穴奥最深部及び下穴奥最深部においても0.10%以上と、用具内に比べると劣るものの十分に高い有効酸素量が示され、発泡性過炭酸ナトリウムを含有する洗浄剤が風呂釜内管全体に行き渡っていることが明らかとなり、風呂釜を運転することなく、洗浄剤を拡散させることによって十分な洗浄が行えることが判明した。   As shown in Table 4, in the upper hole front depth and the lower hole front depth, a high effective oxygen amount is shown as in the tool, and 0.10% or more also in the upper hole deepest part and the lower hole deepest part However, it is inferior to the inside of the utensil, but a sufficiently high effective oxygen amount is shown, and it is clear that the detergent containing foaming sodium percarbonate has spread throughout the bath inner tube, so that the bath can be operated. However, it was found that sufficient cleaning can be performed by diffusing the cleaning agent.

本発明の風呂釜洗浄方法の一実施の形態を示す図である。It is a figure which shows one Embodiment of the bathtub cleaning method of this invention. 洗浄過程の説明図である。It is explanatory drawing of a washing process. 風呂釜洗浄用具の構造を示す図である。It is a figure which shows the structure of a bath pot cleaning tool. 風呂釜洗浄用具の基体部への隔壁部の取付状態を示す図である。It is a figure which shows the attachment state of the partition part to the base | substrate part of a bath tub cleaning tool. 風呂釜洗浄用具の隔壁部の折り畳み状態を示す図である。It is a figure which shows the folding state of the partition part of the bath tub cleaning tool. 風呂釜洗浄用具のシール部の作用を示す図である。It is a figure which shows the effect | action of the seal part of a bath tub cleaning tool. 風呂釜洗浄用具の変形例を示す図である。It is a figure which shows the modification of a bath tub cleaning tool. 風呂釜洗浄用具の変形例を示す図である。It is a figure which shows the modification of a bath tub cleaning tool. 風呂釜洗浄用具の変形例を示す図である。It is a figure which shows the modification of a bath tub cleaning tool.

符号の説明Explanation of symbols

1 風呂釜洗浄用具(本体部及び洗浄剤投入口)
2 基体部
3 隔壁部
21 吸盤
22 シール部
26 長尺吸盤
BT 浴槽
T 洗浄剤
W 水面
1 Bath tub cleaning tool (main body and cleaning agent inlet)
2 Base part 3 Partition part 21 Suction cup 22 Seal part 26 Long suction cup BT Bathtub T Cleaning agent W Water surface

Claims (4)

少なくとも風呂水出入穴が水没する水位まで風呂水を浴槽内に張った状態で、風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接する洗浄用具設置工程と、
風呂釜洗浄用具で区画された風呂水に、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aを投入して風呂釜を洗浄する洗浄工程Aとをむ風呂釜洗浄方法において、
風呂釜洗浄用具が、枠状の基体部、基体部に設けた吸盤、基体部に対して着脱自在に取り付けられる隔壁部とからなり、基体部の左右側辺及び底辺の内側と外側には、それぞれ保持部とスカート状に外側に湾曲したシール部が設けられ、保持部とシール部とで隔壁部を差し込むことのできる保持溝を形成していることを特徴とする風呂釜洗浄方法。
With bath water in the bathtub at least until the bath water entrance / exit hole is submerged, apply the bath cleaning tool to the bathtub wall so that the inside of the bath water entrance / exit hole is divided into a predetermined volume. Cleaning tool installation process that touches,
The bath water partitioned by bathtub cleaning implements, in the cleaning step A and the including wind Ryokama cleaning method by introducing a bath boiler cleaning agent A cleaning a bathtub containing a foaming sodium percarbonate,
The bath tub cleaning tool comprises a frame-shaped base part, a suction cup provided on the base part, and a partition part that is detachably attached to the base part. A bath tub cleaning method, characterized in that a holding portion and a seal portion curved outward are provided in a skirt shape, and a holding groove into which a partition wall portion can be inserted is formed by the holding portion and the seal portion.
風呂水出入穴の浴槽内部側の周囲を所定の容積に区画するように風呂釜洗浄用具を浴槽の壁面に当接する洗浄用具設置工程と、
少なくとも風呂水出入穴が水没する水位まで風呂水を浴槽内に張る水張工程と、
風呂釜洗浄用具で区画された風呂水に、発泡性過炭酸ナトリウムを含有する風呂釜洗浄剤Aを投入して風呂釜を洗浄する洗浄工程Aとをむ風呂釜洗浄方法において、
風呂釜洗浄用具が、枠状の基体部、基体部に設けた吸盤、基体部に対して着脱自在に取り付けられる隔壁部とからなり、基体部の左右側辺及び底辺の内側と外側には、それぞれ保持部とスカート状に外側に湾曲したシール部が設けられ、保持部とシール部とで隔壁部を差し込むことのできる保持溝を形成していることを特徴とする風呂釜洗浄方法。
A cleaning tool installation step of bringing the bath tub cleaning tool into contact with the wall surface of the bathtub so as to divide the periphery of the bath water access hole inside the bathtub into a predetermined volume;
A water-filling process that stretches bath water into the bathtub to a level where at least the bath water access hole is submerged,
The bath water partitioned by bathtub cleaning implements, in the cleaning step A and the including wind Ryokama cleaning method by introducing a bath boiler cleaning agent A cleaning a bathtub containing a foaming sodium percarbonate,
The bath tub cleaning tool comprises a frame-shaped base part, a suction cup provided on the base part, and a partition part that is detachably attached to the base part. A bath tub cleaning method, characterized in that a holding portion and a seal portion curved outward are provided in a skirt shape, and a holding groove into which a partition wall portion can be inserted is formed by the holding portion and the seal portion.
風呂釜洗浄用具の隔壁部が、折りたたむことができることを特徴とする請求項1又は2に記載の風呂釜洗浄方法。The method of cleaning a bathtub according to claim 1 or 2, wherein the partition wall portion of the bathtub cleaning tool can be folded. さらに、風呂釜洗浄用具で区画された風呂水に、酸性物質を含有する風呂釜洗浄剤Bを投入して風呂釜を洗浄する洗浄工程Bを含むことを特徴とする請求項1〜3のいずれかに記載の風呂釜洗浄方法。 Furthermore, the washing | cleaning process B which throws in the bath kettle cleaning agent B containing an acidic substance into the bath water divided with the bath kettle washing | cleaning tool, and wash | cleans a bath kettle is included , The any one of Claims 1-3 characterized by the above-mentioned. bath boiler cleaning method according to any.
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