JP2004315691A - Disinfectant cleaning composition - Google Patents

Abstract

An object of the present invention is to provide a germicidal detergent composition which has excellent bactericidal performance and cleaning performance, does not cause a whitening phenomenon of an object to be treated, and is excellent in both foaming properties and foam continuity.
A fungicide (A) selected from a cationic fungicide, a biguanide fungicide and an amino acid fungicide, an alkali agent containing no silicic acid (B), a nonionic surfactant (C), and amphoteric surfactant A germicidal detergent composition comprising an agent (D) and a metal chelating agent (E), wherein the pH (25 ° C.) of a 1% by weight aqueous solution is 9 or more.
[Selection diagram] None

Description

【００１４】
〔式中、Ｒ^１、Ｒ^２、Ｒ^３、Ｒ^４は、これらの１つ又は２つが、炭素数８〜１６の直鎖もしくは分岐鎖のアルキル基もしくはアルケニル基又は次式
【００１５】
【化４】

【００１６】
で表される基を示し、残りは同一でも異なっていてもよく、それぞれ炭素数１〜３のアルキル基、ベンジル基又は次式−（ＣＨ_２ＣＨ_２Ｏ）_ｍＨ（ｍはエチレンオキサイドの平均付加モル数であり２〜２０の数である。）で表される基を示し、Ｒ^５は炭素数１２〜１８の直鎖又は分岐鎖のアルキル基又はアルケニル基を示し、Ｘ⁻は塩素イオン等のハロゲンイオン又はモノアルキルリン酸イオン、グルコン酸イオン等の有機アニオンである。〕
【００１７】
また、ビグアナイド系殺菌剤としては、クロルヘキシジン、グルコン酸クロルヘキシジン、ポリヘキサメチレンビグアニジン等が挙げられる。
【００１８】
また、アミノ酸系殺菌剤としては、アルキル（好ましくは炭素数１２〜１８）ジアミノエチルグリシン、ジ（アルキル（好ましくは炭素数６〜１２）アミノエチル）グリシン等のアルキルポリアミノエチルグリシン等が挙げられる。（Ａ）成分としては、第四級アンモニウム塩系殺菌剤、ピリジニウム塩系殺菌剤及びビグアナイド系殺菌剤から選ばれる一種以上が好ましく、特に第四級アンモニウム塩系殺菌剤及び／又はピリジニウム塩系殺菌剤が好ましい。
【００１９】
第四級アンモニウム塩系殺菌剤、ピリジニウム塩系殺菌剤としては、塩化ベンザルコニウム（例えば、商品名サニゾールＣ、花王（株）製等）、ジアルキルジメチルアンモニウムクロライド（例えば、商品名コータミンＤ１０Ｅ、花王（株）製等）が特に好ましい。また、ビグアナイド系殺菌剤としては、ポリヘキサメチレンビグアニジン塩酸塩が特に好ましい。
【００２０】
＜（Ｂ）成分＞
（Ｂ）成分は、主として洗浄効果に寄与するものである。（Ｂ）成分は、珪酸を含まないアルカリ剤であり、具体的には、アルカリ金属の水酸化物、炭酸塩、モノエタノールアミン等のアルカノールアミン等が挙げられる。なかでも、アルカリ金属の水酸化物、具体的には、水酸化ナトリウム、水酸化カリウム、水酸化リチウムが好ましく、特に水酸化カリウムが好ましい。
【００２１】
＜（Ｃ）成分＞
（Ｃ）成分としては、ポリオキシアルキレンアルキルエーテル、ポリオキシアルキレンアルキルアリールエーテル、グリセリン脂肪酸エステル、ポリグリセリン脂肪酸エステル、プロピレングリコール脂肪酸エステル、ポリプロピレングリコール脂肪酸エステル、ショ糖脂肪酸エステル、ポリオキシアルキレンソルビタン脂肪酸エステル、ポリオキシアルキレン脂肪酸エステル、ソルビタン脂肪酸エステル、アルキルポリグリコシド、アルキルポリグリセリンエーテル等が挙げられる。
【００２２】
なかでも、ポリオキシアルキレン（好ましくは炭素数２〜４）アルキル（好ましくは炭素数６〜２４）エーテル、ポリオキシアルキレン（好ましくは炭素数２〜４）アルキル（好ましくは炭素数６〜２４）アリール（好ましくはフェニル）エーテル、アルキル（好ましくは炭素数６〜２４）ポリグリコシド、アルキル（好ましくは炭素数６〜２４）ポリグリセリン（好ましくは縮合度２〜２０）エーテルが好ましく、アルキル（好ましくは炭素数６〜２４）ポリグリコシドが特に好ましい。これらにおけるオキシアルキレンの平均付加モル数は、３〜５０が好ましい。
【００２３】
＜（Ｄ）成分＞
（Ｄ）成分としては、アルキル（好ましくは炭素数６〜２２、特に好ましくは炭素数１２）ジメチルアミンオキサイド等のアミンオキサイド、アルキル（好ましくは炭素数６〜２２、特に好ましくは炭素数１２）ジメチルアミノ酢酸ベタイン等のアルキルジメチルアミノ脂肪酸ベタイン、ラウロイルアミドプロピルベタイン等のアルキル（好ましくは炭素数６〜２２）アミドベタイン、ラウリルヒドロキシスルホベタイン等のアルキル（好ましくは炭素数６〜２２）スルホベタイン、ココアミドジメチルヒドロキシプロピルスルホベタイン等のアルキル（好ましくは炭素数６〜２２）アミドスルホベタイン、２−アルキル−Ｎ−カルボキシメチル−Ｎ−ヒドロキシエチルイミダゾリニウムベタイン等のイミダゾリン型両性界面活性剤が挙げられ、中でもアミンオキサイド、アルキルジメチルアミノ脂肪酸ベタインが好ましい。（Ｄ）成分を含有することにより、製剤安定性や泡立ちが良くなる。
【００２４】
＜（Ｅ）成分＞
（Ｅ）成分としては、ヒドロキシカルボン酸塩、アミノカルボン酸塩等が挙げられ、特にエチレンジアミンテトラ酢酸塩、ヒドロキシエチルエチレンジアミントリ酢酸塩、ニトリロトリ酢酸塩、クエン酸塩が好ましい。（Ｅ）成分は、希釈時の安定化に効果的であり、また硬度成分による白濁防止や発泡機内での珪酸スケール（珪酸カルシウム）の沈着防止の点でより好ましい。
【００２５】
その他、本発明の殺菌洗浄剤組成物に配合できる成分として、以下のものが挙げられる。
【００２６】
＜（Ｆ）水溶性溶剤＞
具体的には、エタノール等の炭素数１〜５の１価アルコール、プロピレングリコール等の炭素数２〜１２の２価アルコール、ジエチレングリコールモノエチルエーテル等の（Ｃ）成分以外のポリアルキレングリコールアルキルエーテル等が挙げられる。加水分解等による水溶性溶剤の変質防止の観点から、水溶性溶剤は、エステル結合やアミド結合を有しないものが好ましい。
【００２７】
＜（Ｇ）防錆剤＞
具体的には、亜硝酸塩、安息香酸塩、ベンゾトリアゾール、ベンゾチアゾール、リン酸塩、ポリリン酸塩等が挙げられる。
【００２８】
本発明の殺菌洗浄剤組成物は、（Ａ）成分を０．０１〜２０重量％、更に０．１〜１０重量％含有することが好ましい。また、（Ｂ）成分を０．０１〜２０重量％、更に０．１〜１０重量％含有することが好ましい。また、（Ｃ）成分を０．０１〜３０重量％、更に０．１〜２０重量％含有することが好ましい。また、（Ｄ）成分を０．０１〜１０重量％、更に０．１〜１０重量％含有することが好ましい。また、（Ｅ）成分を０．０１〜１０重量％、更に０．１〜５重量％含有することが好ましい。
【００２９】
また、本発明の殺菌洗浄剤組成物では、（Ｂ）成分と（Ｃ）成分の重量比は、（Ｂ）／（Ｃ）＝１／０．５〜１／１０、更に１／１〜１／５が好ましい。
【００３０】
また、本発明の殺菌洗浄剤組成物では、（Ｃ）成分と（Ｄ）成分の重量比は、発泡性と泡持続性のバランスの観点から、（Ｃ）／（Ｄ）＝１／９以上９／１未満、更に１／９以上２／１未満、特に２／８〜１／１が好ましい。
【００３１】
（Ｃ）成分の非イオン界面活性剤の単独使用では、泡持続性は良好であるが発泡性が不十分であり良好な泡を形成することが困難となる。一方、（Ｄ）成分の両性界面活性剤の単独使用では、発泡性は良好であるが泡持続性が不良となる。本発明では、（Ｃ）成分と（Ｄ）成分を併用することで、発泡性と泡持続性の両方に優れた殺菌洗浄剤組成物が得られる。
【００３２】
本発明の殺菌洗浄剤組成物は、洗浄性の観点から、１重量％水溶液のｐＨ（２５℃）が９以上であり、好ましくは１０〜１３である。
【００３３】
また、本発明では、珪酸を含まないアルカリ剤を（Ｂ）成分として使用するが、殺菌洗浄剤組成物中の珪酸の濃度は２重量％以下、更に０．５重量％以下であることが、白化防止の点で好ましい。なお、珪酸塩等、珪酸を含有する化合物は、珪酸換算の濃度とする。
【００３４】
また、本発明の殺菌洗浄剤組成物は、原液ないし１００倍程度に希釈して使用されるが、使用時の各成分の濃度は、（Ａ）成分が１０ｐｐｍ〜２０重量％、更に１００ｐｐｍ〜２０重量％、（Ｂ）成分が１０ｐｐｍ〜２０重量％、更に１００ｐｐｍ〜２０重量％、（Ｃ）成分が１０ｐｐｍ〜３０重量％、更に１００ｐｐｍ〜２０重量％、（Ｄ）成分が１０ｐｐｍ〜２０重量％、更に１００ｐｐｍ〜１０重量％、（Ｅ）成分が１０ｐｐｍ〜１０重量％、更に１００ｐｐｍ〜１０重量％が好ましい。
【００３５】
本発明の殺菌洗浄剤組成物は、殺菌洗浄性能に優れ、且つ処理対象物の白化現象を起こさないため、幅広い分野での殺菌洗浄に有用である。例えば、病院、養護施設、食品加工工場、クリーニング施設、厨房等の壁、床、窓等あるいはそれらで用いられる器具及び備品の殺菌に用いられる。
【００３６】
本発明の殺菌洗浄剤組成物は、例えば上記のような適当な濃度に希釈して用いられるが、特に、１〜１０００ｍＬ／水１Ｌ、更に１０〜１０００ｍＬ／水１Ｌの濃度に希釈した水希釈液を発泡させて洗浄対象物に接触させる洗浄方法に用いるのが好ましい。食品加工工場内の製造ライン等、処理面積が大きい場合は、泡洗浄機（例えば「ＳＣＵ−ＨＦ」スプレーイング社製）が好適に用いられ、まな板等の調理器具や備品等、処理面積が小さい場合は、トリガースプレーヤーやフォーマースプレーヤー等の泡を発生させることのできるハンドスプレーヤーが好適に用いられる。
【００３７】
泡洗浄機を用いる場合、発泡倍率〔泡の体積（ｍＬ）／泡の重量（ｇ）の比〕が３〜５０倍、更に５〜４０倍、特に１０〜４０倍であることが好ましい。トリガースプレーヤーやフォーマースプレーヤー等のハンドスプレーヤーを用いる場合、発泡倍率が２〜３０倍、更に２〜２０倍、特に３〜１０倍であることが好ましい。
【００３８】
【発明の効果】
本発明の殺菌洗浄剤組成物は、発泡性、泡持続性が良いため、高い洗浄性及び殺菌性を有する。更に白化防止性に優れるので、すすぎ時に残留成分が殆ど無い。
【００３９】
【実施例】
実施例１
表１に示す液体殺菌洗浄剤組成物を調製し、以下の試験を行った。結果を表１に示す。
【００４０】
１．デンプン洗浄試験方法
市販のレトルト米飯（さとうの御飯）２００ｇを電子レンジで２分加熱した後、ミキサーの中にイオン交換水２００ｇと共に入れ、１分間撹拌、その後さらにイオン交換水４００ｇを追加し、１分間撹拌する。得られたデンプンスラリーを、市販ガーゼを２重に重ねにしたもので濾過し、試験用のデンプンスラリーを得た。
【００４１】
ＳＵＳ３０４製金網（目間隔２ｍｍ、１０ｃｍ×１０ｃｍ）を洗浄、乾燥させた後、精秤（Ｄ_１ｇ）する。上記デンプンスラリーを約７ｃｎ×１０ｃｍの面積に刷毛で塗る。２４時間室温で乾燥させ、精秤（Ｄ_２ｇ）し、テストピースを作成した。このテストピースを立ててセットし、その上に各種組成物の５％水溶液を発泡機（スプレーイングシステム社製）で泡状に付与し、６０分放置後水洗を行った。この時の発泡倍率は組成によって異なるが、１０〜４０倍の範囲であった。
【００４２】
乾燥後に重量測定を行い（Ｄ_３）、下記計算式よりデンプンの減少率を算出し、これを洗浄率とした。
洗浄率（％）＝〔（Ｄ_２−Ｄ_３）／（Ｄ_２−Ｄ_１）〕×１００
【００４３】
２．油洗浄試験方法
表面を２４０番サンドペーパーで研磨し、洗浄、乾燥したＳＵＳ３０４テストピース（３ｃｍ×８ｃｍ）を精秤（Ｄ_１ｇ）する。その表面に、ナタネ油／牛脂混合油（５０／５０重量比）を均一に塗り精秤（Ｄ_２ｇ）する。このテストピースを垂直に立てて置き、その上から各種組成物の５重量％水溶液を発泡機（スプレーイングシステム社製）で泡状に付与し、６０分放置後水洗を行った。この時の発泡倍率は組成によって異なるが、１０〜４０倍の範囲であった。
【００４４】
乾燥後に重量測定を行い（Ｄ_３）、デンプン洗浄試験方法における計算式と同様に混合油の減少率を算出し、これを洗浄率とした。
【００４５】
３．殺菌性試験
大腸菌（Ｅｓｃｈｅｒｉｃｈｉａ ｃｏｉｌ ＩＦＯ３９７２）と黄色ブドウ球菌（Ｓｔａｐｈｙｌｉｃｏｃｃｕｓ ａｕｒｅｕｓ ＩＦＯ１２７３２）を、それぞれＳＣＤ寒天培地（日本製薬（株））で３５℃、２４時間前培養した後、寒天培地上に生成されたコロニーを一白金耳かきとって、ＳＣＤ寒天培地（日本製薬（株））に懸濁して３５℃、２４時間培養した。細菌の生育が確認されたならば、本懸濁液を遠心洗浄後、適量の滅菌水で約１０^８〜１０^９ｃｅｌｌ／ｍＬの菌濃度に調整して菌液とした。
【００４６】
予め滅菌水を用いて２倍ずつ段階希釈した表１の組成物２ｍＬを試験管に用意し、この中に上記の菌液０．１ｍＬを注ぎ、２５℃で１５分間接触させた。９６穴マイクロシャーレ（コーニングコースター社）に、０．２ｍＬずつ分注した１．０％チオ硫酸ナトリウムを加えたＳＣＤＬＰ培地（日本製薬（株）製）中に、細菌と組成物希釈液との接触液を直ちに０．０５ｍＬ採取し、組成物を不活化させ、そのまま３５℃で２４時間培養した。培養後、培養液に濁りが生じない（完全に殺菌できている）最高希釈倍率を最少殺菌濃度とし、希釈倍率で表記した。
【００４７】
４．白化防止性評価
ＳＵＳ３０４プレート（１０ｃｍ×２０ｃｍ）の上に各種組成物の５重量％水溶液を発泡機（スプレーイングシステム社製）で泡状に付与し、６０分放置後水洗を行った。その後、表面残留物の有無を目視判定し、以下の基準で評価した。◎：残留物無し
○：わずかに残留物有り
×：残留物有り
【００４８】
５．泡特性
（５−１）起泡性
各種組成物の５重量％水溶液を発泡機（スプレーイングシステム社製）で噴霧した時の泡状態を目視判定し、以下の基準で評価した。
◎：クリーミーな泡を形成する
○：粗い泡を形成する
×：泡を形成せず液状である
【００４９】
（５−２）泡持続性
各種組成物の５重量％水溶液を発泡機（スプレーイングシステム社製）で１Ｌのビーカーに噴霧し、３０分経過後の泡残量を目視判定し、以下の基準で評価した。
◎：表面全体にわたって泡が残存する
○：かなりの泡が破泡するが、部分的に泡の残存が認められる
×：泡が破泡し、表面に泡が残っていない
【００５０】
【表１】

【００５１】
表中の成分は以下のものである。また、ｐＨは、組成物の１重量％水溶液のｐＨ（２５℃）である。
・殺菌剤１：塩化ベンザルコニウム〔サニゾールＣ、花王（株）製〕
・殺菌剤２：ジデシルジメチルアンモニウムクロライド〔コータミンＤ１０Ｅ、花王（株）製〕
・非イオン界面活性剤１：ポリオキシエチレン（エチレンオキサイド平均付加モル数１２）ラウリルエーテル〔エマルゲン１２０、花王（株）製〕
・非イオン界面活性剤２：ポリオキシエチレン（エチレンオキサイド平均付加モル数７）−ｓｅｃ−アルキル（Ｃ_１２〜Ｃ_１４）エーテル〔エマルゲン７０７、花王（株）製〕
・非イオン界面活性剤３：アルキル（Ｃ_１２〜Ｃ_１４）ポリグルコシド〔ＡＧ−１２４、花王（株）製〕
・両性界面活性剤１：ジメチルラウリルアミンオキサイド〔アンヒトール２０Ｎ、花王（株）製〕
・両性界面活性剤２：アルキル（Ｃ_１２〜Ｃ_１４）ジメチルアミノ酢酸ベタイン〔アンヒトール２４Ｂ、花王（株）製〕[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a germicidal detergent composition.
[0002]
[Prior art]
In various factories such as schools, hospitals, accommodation facilities, and food processing factories, there are various hard surfaces to be cleaned and sterilized, such as ceramic tiles, metal walls, floors, and the like. Further, in a food processing factory or the like, since a series of processing is performed in an automated manner, cleaning and sterilization of the processing machine is extremely important.
[0003]
In order to improve the cleaning performance against stubborn oil stains and cooked rice stains attached to these hard surfaces and to simultaneously remove bacteria, apply an alkaline agent and a cationic disinfectant in combination, foam the detergent and apply it in a foam form. Is done. Washing in the form of a foam has the advantages that the spraying state of the cleaning agent can be visually checked, so that the processing location can be easily determined and unnecessary scattering of the cleaning agent can be suppressed. In addition, the application in the form of a foam increases the residence time in the object to be cleaned, thereby improving the cleaning and sterilizing effects. Patent Document 1 discloses a liquid detergent composition containing a nonionic surfactant, a cationic surfactant, and a builder as a germicidal detergent capable of simultaneously performing washing and disinfection of sebum stains and soap scum stains. However, it has low foaming properties and is not suitable for sterilizing cleaning of food processing equipment.
[0004]
Furthermore, Patent Document 2 discloses a solid germicidal detergent composition for hard surfaces containing a cationic germicide, an alkali agent, and a surfactant as a germicidal detergent capable of effectively disinfecting and cleaning hard surfaces. However, it does not satisfy both foaming property and foam persistence.
[0005]
Patent Literature 3 discloses a neutral or weakly acidic foam sterilizing detergent composition which is preferably used in a neutral or weakly acidic form by filling the liquid sterilizing detergent composition into a foamer and discharging the foam. Has excellent foam stability performance and foam retention performance, and disinfectant detergent compositions suitable for foam washing have been disclosed, but these are mainly intended for disinfecting washing of fingers, and both are for disinfecting washing of hard surfaces. Has insufficient cleaning and sterilizing power.
[0006]
[Patent Document 1]
JP-A-11-256198 [Patent Document 2]
JP-A-11-124594 [Patent Document 3]
JP 10-330799 A [Patent Document 4]
JP-A-2002-53893
[Problems to be solved by the invention]
As described above, various disinfecting detergents having both disinfecting performance and cleaning performance have been developed and used, but an alkaline agent is required for detergency. When one or more bactericides selected from cationic bactericides (quaternary ammonium salt bactericides, pyridium salt bactericides), biguanide bactericides and amino acid bactericides are used, silicates, especially silicic acid, are used. When an alkali metal salt is used in combination, a precipitate may be generated and may remain and adhere to the object to be treated, causing a so-called whitening phenomenon. When the whitening phenomenon occurs, rubbing or the like for removing the whitening phenomenon is required, and the load increases as the processing area increases.
[0008]
In addition, when used as a foam detergent, if the foaming properties are good but the foam persistence is insufficient, the dirt that has swelled and is easily removed becomes difficult to wash by drying, leading to a decrease in washability.
[0009]
An object of the present invention is to provide a germicidal detergent composition which has both excellent germicidal performance and cleaning performance, and does not cause whitening of the object to be treated, is further excellent in both foamability and foam continuity, and provides high detergency. It is to provide.
[0010]
[Means for Solving the Problems]
The present invention relates to one or more fungicides (A) (hereinafter, referred to as component (A)) selected from a cationic fungicide, a biguanide fungicide, and an amino acid fungicide, and an alkali agent (B) containing no silicic acid. [Hereinafter referred to as component (B)], nonionic surfactant (C) [hereinafter referred to as component (C)], amphoteric surfactant (D) [hereinafter referred to as component (D)], and metal chelating agent The present invention relates to a germicidal detergent composition containing (E) [hereinafter referred to as “component (E)”] and having a 1% by weight aqueous solution (pH (25 ° C.)) of 9 or more.
[0011]
The present invention also relates to a cleaning method in which a water diluent obtained by diluting the sterilizing detergent composition of the present invention to a concentration of 1 to 1000 mL / 1 L of water is foamed and brought into contact with an object to be cleaned.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
<(A) component>
The component (A) mainly contributes to the bactericidal effect. Among the components (A), examples of the cationic disinfectant include quaternary ammonium salt disinfectants and pyridinium salt disinfectants. Specifically, dialkyl (the alkyl group preferably has 8 to 14 carbon atoms) ) Examples include dimethylammonium halide, benzalkonium chloride, benzethonium chloride, and compounds in which a counter ion thereof is substituted by another anion. The quaternary ammonium salt bactericide and the pyridinium salt bactericide are preferably selected from the compounds represented by the following formula (A-1) and the compounds represented by the following formula (A-2).
[0013]
Embedded image

[0014]
[In the formula, one or two of R ¹ , R ² , R ³ , and R ⁴ are a linear or branched alkyl or alkenyl group having 8 to 16 carbon atoms or a compound represented by the following formula:
Embedded image

[0016]
And the rest may be the same or different, and each is an alkyl group having 1 to 3 carbon atoms, a benzyl group, or the following formula-(CH ₂ CH ₂ O) _m H (m is an average of ethylene oxide) R ⁵ represents a linear or branched alkyl or alkenyl group having 12 to 18 carbon atoms, and X ⁻ represents a chloride ion. And organic anions such as monoalkyl phosphate ions and gluconate ions. ]
[0017]
Examples of biguanide fungicides include chlorhexidine, chlorhexidine gluconate, polyhexamethylene biguanidine and the like.
[0018]
Examples of the amino acid bactericide include alkyl polyaminoethyl glycine such as alkyl (preferably having 12 to 18 carbon atoms) diaminoethyl glycine and di (alkyl (preferably having 6 to 12 carbon atoms) glycine). As the component (A), one or more selected from quaternary ammonium salt bactericides, pyridinium salt bactericides and biguanide bactericides are preferred, and particularly quaternary ammonium salt bactericides and / or pyridinium salt bactericides. Agents are preferred.
[0019]
Examples of the quaternary ammonium salt fungicide and the pyridinium salt fungicide include benzalkonium chloride (for example, trade name Sanisol C, manufactured by Kao Corporation), dialkyldimethyl ammonium chloride (for example, trade name Cortamine D10E, Kao) And the like are particularly preferred. As the biguanide bactericide, polyhexamethylene biguanidine hydrochloride is particularly preferable.
[0020]
<(B) component>
The component (B) mainly contributes to the cleaning effect. The component (B) is an alkali agent containing no silicic acid, and specific examples thereof include hydroxides, carbonates of alkali metals, and alkanolamines such as monoethanolamine. Of these, alkali metal hydroxides, specifically, sodium hydroxide, potassium hydroxide, and lithium hydroxide are preferred, and potassium hydroxide is particularly preferred.
[0021]
<(C) component>
As the component (C), polyoxyalkylene alkyl ether, polyoxyalkylene alkyl aryl ether, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, polypropylene glycol fatty acid ester, sucrose fatty acid ester, polyoxyalkylene sorbitan fatty acid ester , Polyoxyalkylene fatty acid esters, sorbitan fatty acid esters, alkyl polyglycosides, alkyl polyglycerin ethers, and the like.
[0022]
Among them, polyoxyalkylene (preferably having 2 to 4 carbon atoms) alkyl (preferably having 6 to 24 carbon atoms) ether, polyoxyalkylene (preferably having 2 to 4 carbon atoms) alkyl (preferably having 6 to 24 carbon atoms) aryl (Preferably phenyl) ether, alkyl (preferably having 6 to 24 carbon atoms) polyglycoside, alkyl (preferably having 6 to 24 carbon atoms) polyglycerin (preferably having a degree of condensation of 2 to 20) ether is preferable, and alkyl (preferably having (Equations 6 to 24) Polyglycosides are particularly preferred. The average number of moles of oxyalkylene added in these is preferably 3 to 50.
[0023]
<(D) component>
Examples of the component (D) include amine oxides such as alkyl (preferably having 6 to 22 carbon atoms, particularly preferably having 12 carbon atoms) dimethylamine oxide, and alkyl (preferably having 6 to 22 carbon atoms, particularly preferably having 12 carbon atoms) dimethyl. Alkyl dimethylamino fatty acid betaines such as aminoacetic acid betaine, alkyl (preferably having 6 to 22 carbon atoms) such as lauroylamidopropyl betaine, alkyl (preferably 6 to 22 carbon atoms) such as amidobetaine and laurylhydroxysulfobetaine, coco Alkyl (preferably having 6 to 22 carbon atoms) such as amidodimethylhydroxypropylsulfobetaine and imidazoline-type amphoteric surfactants such as 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine are exemplified. , Among others amine oxide, alkyl dimethyl amino fatty betaines are preferred. By containing the component (D), the preparation stability and foaming are improved.
[0024]
<(E) component>
Examples of the component (E) include hydroxycarboxylates and aminocarboxylates, and particularly preferred are ethylenediaminetetraacetate, hydroxyethylethylenediaminetriacetate, nitrilotriacetate, and citrate. The component (E) is effective for stabilizing at the time of dilution, and is more preferable in terms of prevention of white turbidity due to hardness components and prevention of deposition of silicate scale (calcium silicate) in a foaming machine.
[0025]
In addition, the following can be mentioned as components that can be blended in the germicidal detergent composition of the present invention.
[0026]
<(F) Water-soluble solvent>
Specifically, a monohydric alcohol having 1 to 5 carbon atoms such as ethanol; a dihydric alcohol having 2 to 12 carbon atoms such as propylene glycol; a polyalkylene glycol alkyl ether other than the component (C) such as diethylene glycol monoethyl ether; Is mentioned. From the viewpoint of preventing deterioration of the water-soluble solvent due to hydrolysis or the like, the water-soluble solvent preferably has no ester bond or amide bond.
[0027]
<(G) Rust inhibitor>
Specific examples include nitrite, benzoate, benzotriazole, benzothiazole, phosphate, polyphosphate, and the like.
[0028]
The germicidal detergent composition of the present invention preferably contains the component (A) in an amount of 0.01 to 20% by weight, more preferably 0.1 to 10% by weight. Further, the component (B) is preferably contained in an amount of 0.01 to 20% by weight, more preferably 0.1 to 10% by weight. It is preferable that the component (C) be contained in an amount of 0.01 to 30% by weight, more preferably 0.1 to 20% by weight. Further, the component (D) is preferably contained in an amount of 0.01 to 10% by weight, more preferably 0.1 to 10% by weight. Further, the component (E) is preferably contained in an amount of 0.01 to 10% by weight, more preferably 0.1 to 5% by weight.
[0029]
In the germicidal detergent composition of the present invention, the weight ratio of the component (B) to the component (C) is (B) / (C) = 1 / 0.5 to 1/10, and more preferably 1/1 to 1 / 5 is preferred.
[0030]
Further, in the germicidal detergent composition of the present invention, the weight ratio of the component (C) to the component (D) is (C) / (D) = 1/9 or more from the viewpoint of the balance between foamability and foam persistence. It is preferably less than 9/1, more preferably 1/9 or more and less than 2/1, particularly preferably 2/8 to 1/1.
[0031]
When the nonionic surfactant of the component (C) is used alone, foam sustainability is good, but foaming properties are insufficient, and it is difficult to form good foam. On the other hand, when the amphoteric surfactant as the component (D) is used alone, the foamability is good but the foam sustainability is poor. In the present invention, by using the component (C) and the component (D) in combination, a germicidal detergent composition excellent in both foamability and foam sustainability can be obtained.
[0032]
In the sterilizing detergent composition of the present invention, the pH (25 ° C.) of a 1% by weight aqueous solution is 9 or more, and preferably 10 to 13, from the viewpoint of detergency.
[0033]
In the present invention, an alkaline agent containing no silicic acid is used as the component (B). The concentration of silicic acid in the sterilizing detergent composition is 2% by weight or less, and further preferably 0.5% by weight or less. It is preferable in terms of prevention of whitening. Compounds containing silicic acid, such as silicates, have a concentration in terms of silicic acid.
[0034]
The germicidal detergent composition of the present invention is used after being diluted from an undiluted solution to about 100-fold. The concentration of each component at the time of use is 10 ppm to 20% by weight of the component (A), and more preferably 100 ppm to 20%. 10% to 20% by weight, more preferably 100 ppm to 20% by weight of the component (B), 100 ppm to 20% by weight of the component (C), 100 ppm to 20% by weight, and 10 ppm to 20% by weight of the component (D). The content is more preferably 100 ppm to 10% by weight, and the component (E) is preferably 10 ppm to 10% by weight, more preferably 100 ppm to 10% by weight.
[0035]
The germicidal detergent composition of the present invention is useful for germicidal washing in a wide range of fields because it has excellent sterilizing washing performance and does not cause the whitening phenomenon of the object to be treated. For example, it is used for sterilizing walls, floors, windows, and the like of hospitals, nursing homes, food processing factories, cleaning facilities, kitchens, and the like, or the instruments and equipment used therein.
[0036]
The germicidal detergent composition of the present invention is used after being diluted to an appropriate concentration, for example, as described above. In particular, a water diluent diluted to a concentration of 1 to 1000 mL / water 1 L, and further to a concentration of 10 to 1000 mL / water 1 L Is preferably used in a cleaning method of foaming and contacting an object to be cleaned. When the processing area is large, such as a production line in a food processing factory, a foam washing machine (for example, manufactured by “SCU-HF” Spraying Co., Ltd.) is preferably used, and the processing area is small, such as cooking utensils such as cutting boards and fixtures. In this case, a hand player capable of generating bubbles, such as a trigger player or a formal player, is preferably used.
[0037]
When a foam washing machine is used, the foaming ratio [ratio of foam volume (mL) / foam weight (g)] is preferably 3 to 50 times, more preferably 5 to 40 times, and particularly preferably 10 to 40 times. When using a hand sprayer such as a trigger player or a formal player, the foaming ratio is preferably 2 to 30 times, more preferably 2 to 20 times, particularly preferably 3 to 10 times.
[0038]
【The invention's effect】
The germicidal detergent composition of the present invention has high detergency and germicidal properties because it has good foaming properties and foam continuity. Further, since it has excellent anti-whitening properties, there is almost no residual component during rinsing.
[0039]
【Example】
Example 1
The liquid germicidal detergent compositions shown in Table 1 were prepared and subjected to the following tests. Table 1 shows the results.
[0040]
1. Starch washing test method After heating 200 g of commercially available retort cooked rice (sato rice) in a microwave oven for 2 minutes, put it in a mixer together with 200 g of ion-exchanged water, stir for 1 minute, and then add 400 g of ion-exchanged water. Stir for minutes. The obtained starch slurry was filtered with a commercially available double layer of gauze to obtain a starch slurry for testing.
[0041]
After washing and drying a SUS304 wire mesh (mesh interval: 2 mm, 10 cm × 10 cm), it is precisely weighed (D ₁ g). The starch slurry is applied to the area of about 7 cn × 10 cm with a brush. It was dried at room temperature for 24 hours, weighed precisely (D ₂ g), and a test piece was prepared. The test piece was set upright, and a 5% aqueous solution of each composition was applied in a foaming state with a foaming machine (manufactured by Spraying System Co., Ltd.), left standing for 60 minutes, and washed with water. The expansion ratio at this time varies depending on the composition, but was in the range of 10 to 40 times.
[0042]
After drying, the weight was measured (D ₃ ), the starch reduction rate was calculated from the following formula, and this was defined as the washing rate.
Cleaning rate (%) = [(D ₂ −D ₃ ) / (D ₂ −D ₁ )] × 100
[0043]
2. Oil Cleaning Test Method A SUS304 test piece (3 cm × 8 cm) that has been polished, cleaned, and dried with a # 240 sandpaper is precisely weighed (D ₁ g). Rapeseed oil / tallow mixed oil (50/50 weight ratio) is evenly applied on the surface and weighed precisely (D ₂ g). The test piece was placed vertically, and a 5% by weight aqueous solution of each of the compositions was applied in a foam form with a foaming machine (manufactured by Spraying System) from above, left standing for 60 minutes, and then washed with water. The expansion ratio at this time varies depending on the composition, but was in the range of 10 to 40 times.
[0044]
After drying, the weight was measured (D ₃ ), and the reduction rate of the mixed oil was calculated in the same manner as in the calculation formula in the starch cleaning test method, and this was defined as the cleaning rate.
[0045]
3. Bactericidal test Escherichia coli ( Escherichia coil IFO3972) and Staphylococcus aureus ( Staphylococcus aureus IFO12732) were pre-cultured on SCD agar medium (Nippon Pharmaceutical Co., Ltd.) at 35 ° C. for 24 hours, and then colonies formed on the agar medium Was suspended in an SCD agar medium (Nippon Pharmaceutical Co., Ltd.) and cultured at 35 ° C. for 24 hours. When the growth of the bacteria was confirmed, the suspension was centrifugally washed and adjusted to a bacterial concentration of about 10 ⁸ to 10 ⁹ cells / mL with an appropriate amount of sterilized water to obtain a bacterial solution.
[0046]
A test tube was prepared with 2 mL of the composition shown in Table 1 which had been serially diluted twice with sterile water in advance, and 0.1 mL of the above-mentioned bacterial solution was poured into the test tube and contacted at 25 ° C. for 15 minutes. Contact of bacteria with composition diluent in SCDLP medium (manufactured by Nippon Pharmaceutical Co., Ltd.) in which 1.0% sodium thiosulfate was dispensed in 0.2 mL portions into a 96-well micro Petri dish (Corning Coaster). Immediately, 0.05 mL of the solution was collected, the composition was inactivated, and the mixture was directly cultured at 35 ° C. for 24 hours. After the culture, the highest dilution ratio at which no turbidity occurred in the culture solution (complete sterilization) was defined as the minimum sterilization concentration, and the dilution ratio was expressed.
[0047]
4. Evaluation of Whitening Prevention A 5% by weight aqueous solution of each composition was applied to a SUS304 plate (10 cm × 20 cm) in the form of a foam using a foaming machine (manufactured by Spraying System Co., Ltd.). Thereafter, the presence or absence of surface residues was visually determined and evaluated according to the following criteria. ◎: No residue ○: Slight residue X: Residue present
5. Foam properties (5-1) Foamability The foam state when a 5% by weight aqueous solution of each composition was sprayed with a foaming machine (manufactured by Spraying System Co., Ltd.) was visually judged and evaluated according to the following criteria.
：: Creamy foam is formed. ：: Coarse foam is formed. X: Liquid is formed without foam.
(5-2) Sustained foaming A 5% by weight aqueous solution of each composition was sprayed into a 1 L beaker with a foaming machine (manufactured by Spraying System Co., Ltd.), and the amount of foam remaining after 30 minutes was visually judged. Was evaluated.
◎: Bubbles remain over the entire surface ○: Considerable foam breaks, but partial bubbles remain observed X: Bubbles break and no bubbles remain on the surface
[Table 1]

[0051]
The components in the table are as follows. The pH is the pH (25 ° C.) of a 1% by weight aqueous solution of the composition.
-Fungicide 1: Benzalkonium chloride [Sanisol C, manufactured by Kao Corporation]
-Fungicide 2: Didecyl dimethyl ammonium chloride [Coatamine D10E, manufactured by Kao Corporation]
Nonionic surfactant 1: polyoxyethylene (average number of moles of ethylene oxide added: 12) lauryl ether [Emulgen 120, manufactured by Kao Corporation]
And non-ionic surface active agent 2: Polyoxyethylene (ethylene oxide average addition molar number of 7)-sec-alkyl _(C 12 _{-C 14)} ether [Emulgen 707, manufactured by Kao Corporation]
And non-ionic surfactants 3: alkyl _(C 12 _{-C 14)} polyglucosides [AG-124, manufactured by Kao Corporation]
-Amphoteric surfactant 1: dimethyl laurylamine oxide [Amphitol 20N, manufactured by Kao Corporation]
Amphoteric Surfactant 2: alkyl _(C 12 _{-C 14)} acid betaine [Amphitol 24B, manufactured by Kao Corporation]

Claims (6)

At least one fungicide selected from a cationic fungicide, a biguanide fungicide and an amino acid fungicide (A), an alkali agent containing no silicic acid (B), a nonionic surfactant (C), and amphoteric surfactant A germicidal detergent composition comprising an agent (D) and a metal chelating agent (E), wherein the pH (25 ° C.) of a 1% by weight aqueous solution is 9 or more. The germicidal detergent composition according to claim 1, wherein the nonionic surfactant (C) is at least one member selected from those having a structure containing an ether bond in a molecule. The germicidal detergent composition according to claim 1 or 2, wherein the amphoteric surfactant (D) is at least one selected from alkylamine oxide and betaine alkylaminoacetate. The germicidal detergent composition according to any one of claims 1 to 3, wherein the germicide (A) is a cationic surfactant represented by the following formula (A-1) or (A-2).

[In the formula, one or two of R ¹ , R ² , R ³ , and R ⁴ are a linear or branched alkyl or alkenyl group having 8 to 16 carbon atoms, or a compound represented by the following formula:

And the rest may be the same or different, and each is an alkyl group having 1 to 3 carbon atoms, a benzyl group, or the following formula-(CH ₂ CH ₂ O) _m H (m is an average of ethylene oxide) R ⁵ represents a linear or branched alkyl or alkenyl group having 12 to 18 carbon atoms, and X ⁻ represents a halogen ion. Or an organic anion. ] The germicidal detergent composition according to any one of claims 1 to 4, wherein the alkali (B) containing no silicic acid is a hydroxide of an alkali metal. A cleaning method wherein the sterilized detergent composition according to any one of claims 1 to 5 is diluted to a concentration of 1 to 1000 mL / 1 L of water by foaming a water diluent and brought into contact with an object to be cleaned.