JP2004027031A - Liquid cleaning composition for coating and cleaning, product and cleaning method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a germicidal detergent for direct application which exerts a germicidal effect using a mild component and no strong bactericide nor bleaching agent and is particularly suitable for washing fibers. <P>SOLUTION: The liquid detergent composition contains, by mass, (A) 5-50% fatty acid or its salt and (B) >10% and ≤40% hydrophilic alcohol solvent comprising carbon, hydrogen and oxygen atoms. <P>COPYRIGHT: (C)2004,JPO

Description

ｎ：ＡＯの平均付加モル数　ｎ＝５〜５０
Ｒ’：Ｈまたは炭素数４以下の直鎖または分岐鎖状の炭化水素基
【００１８】
前記一般式（１）において、Ｒは、好ましくは、炭素数９〜１９の直鎖または分岐の飽和または不飽和の炭化水素基、更に好ましくは炭素数１１、１２、１３の直鎖または分岐の飽和炭化水素基、および炭素数１７の直鎖または分岐の飽和または不飽和炭化水素基であって、単一鎖長および複数の鎖長の混合物でも良い。前記（Ｃ）成分の原料としては、ヤシ油、パーム油、牛脂等の天然油脂由来のアルコ−ルや石油由来の合成アルコ−ルが使用できる。
【００１９】
前記（Ｃ）成分の配合量は、５質量％以上、かつ（Ａ）成分と（Ｃ）成分の合計量が１０〜６０質量％が好ましい。特に、（Ｃ）成分が１０質量％以上で（Ａ）成分との合計量が２０〜５０質量％とすると好適である。
【００２０】
前記（３）に記載の第３の発明は、（Ａ）脂肪酸またはその塩及び（Ｂ）炭素原子、水素原子、酸素原子からなるアルコール系親水性溶媒を含有する液体洗浄剤組成物を汚れの付着した被洗物に塗布して、該組成物の殺菌作用を働かせ、次いで、該被洗物を水性液中で洗浄することを特徴とする除菌洗浄方法である。
詳細は、前記第１の発明で記載した事項に準ずる。
【００２１】
本発明では、通常、衣料用洗浄剤に配合するような以下のような成分を配合できる。
１）界面活性剤
アニオン界面活性剤、カチオン界面活性剤、両性界面活性剤などの各種界面活性剤等が挙げられ、これらは１種単独で又は２種以上を適宜組み合わせて使用することができる。
【００２２】
２）キレート剤
アミノカルボン酸誘導体型キレート剤、ポリカルボン酸／塩等である。
アミノカルボン酸誘導体型キレート剤としては、アミメチルグリシンジ酢酸塩、β−アラニンジ酢酸塩、イミノジコハク酸塩、ヒドロキシイミノジコハク酸塩（ＨＩＤＳ）、セリンジ酢酸塩、イソセリンジ酢酸塩、アスパラギン酸ジ酢酸塩（ＡＳＤＡ）、エチレンジアミン四酢酸塩（ＥＤＴＡ）、ニトリロトリ酢酸塩（ＮＴＡ）、ヒドロキシエチレンジアミン５酢酸塩（ＨＥＤＴＡ）、ジエチレントリアミン５酢酸塩（ＤＴＰＡ）等が挙げられる。この他、等も使用できる。これらはナトリウム塩、カリウム塩が好ましい。
前記ポリカルボン酸および／またはその塩としては、ポリアクリル酸、マレイン酸とアクリル酸の共重合体、多糖類系ポリカルボキシレート等の高分子電解質が挙げられる。ポリアクリル酸、マレイン酸とアクリル酸の共重合体の平均分子量は、好ましくは１０００〜１，０００，０００であり、さらに好ましくは１０００〜１００，０００であり、ナトリウム塩、カリウム塩が好ましい。
【００２３】
３）酵素
酵素としては、プロテアーゼ、リパーゼ、セルラーゼ、アミラーゼ等が挙げられる。特に、殺菌作用を増強するため、溶菌作用のある酵素を配合することが好ましい。具体的には、サビナーゼ１２Ｔ、サビナーゼ１６Ｌ、エスペラーゼ４Ｔ、エバラーゼ８Ｔ、カンナーゼ２４ＴＫ、アルカラーゼ２Ｔ等が好適である。
【００２４】
４）その他
本発明の効果を損なわない範囲で、抗菌剤や漂白剤等の殺菌作用を有する成分を併用することもできる。
この他、着色剤、香料、防腐剤、ｐＨ調整剤、粘度安定剤、多価アルコール等の低温安定剤等を配合できる。
【００２５】
本発明の液体洗浄剤組成物のｐＨは、６〜１２、好ましくは７〜１１、特に、８〜１１とすると好適である。
【００２６】
【発明の効果】
本発明によれば、マイルドな成分からなる液体洗浄剤組成物を被洗物に塗布して洗浄することにより、除菌効果と優れた洗浄力を発揮できる。
【００２７】
【実施例】
次に、本発明を実施例により詳しく説明するが、本発明はこれら実施例によつて限定されるものではない。
【実施例１〜３２、比較例１〜４】
＜液体洗浄剤組成物の調製＞
イオン交換水に（Ｂ）成分、脂肪酸または予め定法でケン化した脂肪酸塩（Ａ成分）を添加混合した。次に脂肪酸を添加した場合、アルカリ金属の水酸化物（例えば水酸化カリウム）およびまたはアルカノ−ルアミン（例えばトリエタノ−ルアミン）を添加し、配合時にケン化を行った。最後に必要に応じて非イオン界面活性剤（Ｃ成分）やその他成分であるｐＨ調整剤を加え、表１〜５に記載の組成の液体洗浄剤組成物を調製した。
なお、前記調製は、攪拌機（ＨＥＩＤＯＮ社製スリ−ワンモ−タ−、回転速度２００ｒｐｍ）を備えた１Ｌビ−カ−を用い、室温で、液体洗浄剤組成物として８００ｇスケ−ルで行った。
【００２８】
＜洗浄力の評価＞
（ｉ）評価布の調製
１）泥汚染布の調製法
三方が原の泥５０ｇをイオン交換水１Ｌに分散し、超音波洗浄機で２０分間、更にホモジナイザーにて５分間分散処理し蒸発皿に移す。そこに綿＃６０（１１×１６ｃｍ）をピンセットで挟んで２０回布を浸せき、引き上げを繰り返し、ローラーで脱水した後、電機乾燥機（１０５°Ｃ）で３０分間乾燥する。乾燥後、汚染布の両面をスポンジで２５回づつポリッシングして泥粒子を均一にして完成とする。
【００２９】
２）油汚れ汚染布の調製法
三方が原の泥４０ｇ（インジケ−タ−として使用）、トリオレイン６０ｇをイオン交換水１Ｌに分散し、超音波洗浄機で２０分間、更にホモジナイザーにて５分間分散処理し、蒸発皿に移す。そこに綿＃６０（１１×１６ｃｍ）をピンセットで挟んで２０回布を浸せき、引き上げを繰り返し、ローラーで脱水した後、電機乾燥機（１０５°Ｃ）で３０分間乾燥する。乾燥後、汚染布の両面をスポンジで２５回づつポリッシングして泥粒子を均一にして完成とする。トリオレインは、純正化学製試薬１級を使用した。
【００３０】
（ｉｉ）洗浄性能の評価
予め５×５ｃｍに裁断した泥汚れ汚染布１０枚、油汚れ汚染布１０枚とをそれぞれ一枚の肌シャツ（綿１００％、ＢＶＤ製）に対して泥汚れ汚染布２枚、油汚れ汚染布２枚ずつ縫い付けた。塗布時間を短縮し、塗布開始時と終了時の時間差を低減するため実験者２名で液体洗浄剤組成物（原液または水希釈液）を各汚染布に塗布した。塗布終了後、５分後静置した。
次いで、二槽式洗濯機（三菱電機（株）ＣＷ−Ｃ３０Ａ１−１）に、水温２５°Ｃ、硬度５°ＤＨ（イオン交換水に塩化カルシウムを添加して調整）に調整した水
３０Ｌを満たし、汚垢布を縫い付け洗浄液を塗布した肌シャツ５枚と無地肌シャツ２枚（浴比調整用）の合計１ｋｇを投入した。次いで標準水量で１０分間洗浄を行い、脱水した。水温２５°Ｃ、硬度５°ＤＨの水で１分間すすいだ。すすぎの操作は合計２回行った。その後、汚染布を肌シャツから取り外し、アイロンで乾燥した。この様にして得られた汚染布の洗浄前後の反射率を色差計（形式Σ９０、日本電色（株）製）測定し、以下の（２）式から洗浄率を算出した。
洗浄率（％）＝（Ａ／Ｂ）×１００　　　　　（２）
ここでＡ＝洗濯前の汚染布のＫ／Ｓ−洗浄布のＫ／Ｓ
Ｂ＝洗濯前の汚染布のＫ／Ｓ−清浄布のＫ／Ｓ
Ｋ／Ｓ＝（１−Ｒ）^２／２Ｒ　　Ｒ：色差計で測定した反射率
【００３１】
＜殺菌作用の評価＞
（菌液の調製）
試験菌試験菌として黄色ブドウ球菌（Ｓ．ａｕｒｅｕｓ　ＡＴＣＣ６５３８）、大腸菌（Ｅ．Ｃｏｌｉ　ＡＴＣＣ８７３９）を用いた。直径８ｃｍのシャ−レ中に作成したＴＳＡ寒天培地（以下ＴＳＡ寒天培地は直径８ｃｍのシャ−レ中のものを指す。）で３７°Ｃ、２４時間培養した試験菌をＴＳＡ寒天培地に再度接種し、３７°Ｃで２４時間培養した。培養後、培養した菌体を白金耳で捕集し、０．８５％食塩水（生理食塩水）に均一に分散させた。定法に従い、１ｍｌ当たりの菌数が約１０^８／ｍｌとなるように
０．８５％食塩水に希釈し菌液とする。
（生菌数の測定）
実施例１〜３２及び比較例１〜６で得られた液体洗浄剤組成物　９．９ｍｌを夫々とり、これに菌液の調製で得られた菌液０．１ｍｌを撹拌しながら添加し、試験液とした。１０分後、該試験液１ｍｌにＳＣＤＬＰ液体培地９ｍｌを添加し１０倍に希釈した。（希釈液▲１▼）更に希釈液▲１▼１ｍｌにＳＣＤＬＰ液体培地９ｍｌを添加して１０倍に希釈し、殺菌反応を停止させた（希釈液▲２▼）。次に希釈液▲２▼、１ｍｌに０．８５％食塩水９ｍｌを添加して１０倍に希釈した（希釈液▲３▼）。同様に０．８５％食塩水を用いて、希釈液▲３▼の１０倍希釈液（希釈液▲４▼）、希釈液▲４▼の１０倍希釈液（希釈液▲５▼）を調製した。希釈液▲１▼、▲３▼、５を０．１ｍｌ採取し、ＴＳＡ寒天培地に接種し、３７°Ｃで２４時間培養して、シャ−レ上のコロニ−数を測定した。生菌数を次式により算出した。
＜生菌数の算出＞
生菌数＝コロニ−数×洗剤液による希釈×液体培地または食塩水による希釈倍率
希釈液▲１▼の場合　生菌数＝コロニー数×１００×１０
希釈液▲３▼の場合　生菌数＝コロニー数×１００×１０００
希釈液▲５▼の場合　生菌数＝コロニー数×１００×１０００００
コロニ−数は可能な限り（通常約４００個まで）カウントし、採用するデ−タは、精度向上のために希釈倍率の低いものを優先した。
また、上記試験液の調製の際に、液体洗浄剤組成物の代わりに０．８５％食塩水９．９ｍｌを用いたものをコントロールとして、上記と同様の操作を行う。コントロールの生菌数に対する試験液の生菌数の比を用いて以下のように評価指標とした。

【００３２】
＜除菌の実用評価法＞
布に固着した菌の除菌効果を、実施例６、１４の組成について、以下の方法で評価し、その結果を実施例６−２、１４−２として、表６に示した。
予め、滅菌処理した５ｃｍ×５ｃｍの綿布に、除菌性能の評価で用いた大腸菌菌液（１０^８個／ｍｌ）５０μＬを塗布した。安全キャビネット中で１０分間乾燥して、綿布に菌を固着させて試験布とした。
次いで、試験布を直径８ｃｍのシャ−レに移し、実施例６および１４の組成物２ｍｌを、それぞれ試験布全体に均一に塗布した。１０分間静置した後、ピンセットを用いてビニ−ル袋に移し、ＳＣＤＬＰ液体培地４８ｍｌを加え抽出機
（ＥＬＭＥＸ社製　形式ＳＨ−ＩＩＭ）にセットした。１分間抽出操作を行なった後、その１０ｍｌを試験管に採取した（抽出液）。
抽出液１ｍｌに０．８５％食塩水９ｍｌを添加して１０倍に希釈した（希釈液▲１▼）。同様に０．８５％食塩水を用いて、希釈液▲１▼の１０倍希釈液（希釈液▲２▼）および希釈液▲２▼の１０倍希釈液（希釈液▲３▼）を調整した。希釈液▲１▼、▲２▼、▲３▼をそれぞれ０．１ｍｌ採取し、ＴＳＡ寒天培地に接種し、３７°Ｃで２４時間培養して、シャーレ上のコロニー数を測定した。生菌数を次式により算出した。
＜生菌数の算出＞
生菌数＝コロニ−数×抽出液による希釈倍率×食塩水による希釈倍率
希釈液▲１▼の場合　生菌数＝コロニー数×１０００×１０
希釈液▲２▼の場合　生菌数＝コロニー数×１０００×１００
希釈液▲３▼の場合　生菌数＝コロニー数×１０００×１０００
コロニ−数は可能な限り（通常約４００個まで）カウントし、採用するデ−タは、精度向上のために希釈倍率の低いものを優先した。
また、上記試験布に、液体洗浄剤組成物の代わりに０．８５％食塩水２ｍｌを塗布し、１０分間静置したものをコントロールとして、上記と同様の操作を行う。コントロールの生菌数に対する試験液の生菌数の比を用いて以下のように評価指標とした。

【００３３】
表−１〜５　の略号の意味及び詳細は以下の通りである。
１）Ａ成分
・Ｃ１２Ｋ：日本油脂（株）ラウリン酸（商品名　ニッサンＮＡＡ１２２）を水酸化カリウムで中和したもの。
・Ｃ１２ＴＥＡ：日本油脂（株）ラウリン酸（商品名　ニッサンＮＡＡ１２２）をトリエタノ−ルアミンで中和したもの。
・Ｃ１８１Ｋ：ライオンオレオケミカル（株）オレイルメチルエステル（商品名パステルＭ１８１）を４８％水酸化カリウム水溶液で中和したもの
・Ｃ１８１ＭＥＡ：日本油脂（株）オレイン酸（商品名　エキストラオレイン）をモノエタノ−ルアミンで中和したもの。
・Ｃ１８１ＤＥＡ：日本油脂（株）オレイン酸（商品名　エキストラオレイン）をジエタノ−ルアミンで中和したもの
・Ｃ１８１ＴＥＡ：日本油脂（株）オレイン酸（商品名　エキストラオレイン）をトリエタノ−ルアミンで中和したもの
・パ−ム油ＴＥＡ：パ−ム油脂肪酸（ライオン（株）実験室品）をトリエタノ−ルアミンで中和したもの。
・ヤシ油ＴＥＡ：ヤシ油脂肪酸（ライオン（株）実験室品）をトリエタノ−ルアミンで中和したもの
（Ａ）成分中和用のアルカリ剤
・モノエタノ−ルアミン：三井化学（株）商品名　モノエタノ−アミンＭＥＡ
・ジエタノ−ルアミン：三井化学（株）商品名　ＤＥＡ８０　純分８０％
・トリエタノ−ルアミン：日本触媒（株）商品名　トリエタノ−ルアミンＳ−８０純分８０％
・水酸化カリウム：旭硝子（株）　　商品名　液体可性カリ　純分４８％
【００３４】
２）（Ｂ）成分
・エタノ−ル：純度９９．５％日本エタノ−ル製
・エチレングリコ−ル：純度９８．５％三菱化学（株）製
・プロピレングリコ−ル：旭硝子（株）製
・フェニルポリオキシエチレンアルコ−ル：純分９０％　三洋化成工業（株）
商品名サンファインＰＨ−２０Ｄ
【００３５】
３）（Ｃ）成分
・高級アルコ−ルエトキシレ−ト（三菱化学（株）商品名ダイヤド−ル１３）をライオン（株）実験室にて定法によりＥＯ、ＰＯを付加したもの下記３種。
Ｃ１３ＡＥ５　　　：平均ＥＯ付加モル数５
Ｃ１３ＡＥ１５　　：　　　　　〃　　　１２
Ｃ１３ＡＥ１５０３：　　　　　〃　　　１５　平均ＰＯ付加モル数３
・メチルエステル（ライオンオレオケミカル（株）商品名パステルＭ１２、パステルＭ１８１）をライオン（株）実験室にてＥＯを付加したもの下記２種。
Ｃ１２ＭＥＥ１５　：パステルＭ１２、平均ＥＯ付加モル数１５
Ｃ１８１ＭＥＥ１５：パステルＭ１８１、平均ＥＯ付加モル数１５
・天然アルコ−ル系ノニオン（ライオン（株）　　商品名レオックスＣＣ９０）ヤシ油アルコ−ル平均ＥＯ付加モル数９
【００３６】
４）その他成分
・ｐＨ調整剤
クエン酸（扶桑化学工業（株）製）を用いて、組成物のｐＨを７〜１１の範囲になるように調整した。
・香料Ａ、Ｂ、Ｃ、Ｄ
それぞれ特願２０００−３４６６２６号公報の表１１〜１８に記載の香料組成物Ａ、Ｂ、Ｃ、Ｄ
・ＬＡＳ塩
Ｃ１０〜１４直鎖アルキルベンゼンスルホン酸モノエタノ−ルアミン塩
直鎖アルキルベンゼンスルホンサン（ライオン（株）製ライポンＬＨ−２００（純分９６％））をモノエタノ−ルアミン（三井化学（株）モノエタノ−ルアミンＭＥＡ）で中和したもの。
・キレ−ト剤
アクリル酸マレイン酸共重合体　（ＢＡＳＦ（株）商品名　ソカランＣＰ７
【００３７】
【表１】

【００３８】
【表２】

【００３９】
【表３】

【００４０】
【表４】

【００４１】
【表５】

【００４２】
【表６】

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a liquid detergent composition for applied laundry, and more particularly, to a composition, a product, and a cleaning method which are applied to a soiled object to be sterilized.
[0002]
[Prior art]
Techniques relating to cleaning agents for application to clothing mainly relate to a cleaning effect of dirt such as mud and oil, and to stabilization of products when formulated (JP-A-10-298599, JP-A-2001-49299). Publication).
Further, in the field of coating and cleaning agents, the technology imparted with a disinfecting effect is mainly for hard surfaces such as the body, kitchens and toilets (JP-A-10-45566, JP-A-11-189792, JP-A-2000-178595). Publications), and textiles such as clothing are not found.
In recent years, in the field of clothing detergents such as granular detergents, in addition to the general cleaning performance of dirt such as mud and collar sleeves, detergents that have been given a disinfecting effect due to growing consumer preference for cleanliness. Are commercially available, but the products contain a powerful agent such as a bleaching agent. However, in the field of cleaning agents for coating and cleaning, which exhibit a remarkable cleaning effect for removing persistent stains such as stains on collars and sleeves, stains and mud stains, no detergent products having a disinfection effect have been put on the market.
[0003]
[Problems to be solved by the invention]
There has been a demand for a disinfecting detergent for coating and washing, which exhibits a disinfecting effect with a mild component without using a strong disinfectant or bleaching agent, and is particularly suitable for washing fibers.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a composition, a product, and a cleaning method which can sterilize and remove bacteria by using a component having low irritation.
[0004]
[Means for Solving the Problems]
The present inventors have conducted intensive studies to solve the above-mentioned problems. As a result, when (A) a fatty acid or a salt thereof and (B) an alcohol-based hydrophilic solvent are combined at a specific concentration, the bactericidal action is enhanced, and The present inventor has found that an excellent disinfection effect can be obtained, and completed the present invention.
[0005]
That is, the present invention is as follows (1) to (3).
(1) A liquid detergent composition containing (A) a fatty acid or a salt thereof and (B) an alcohol-based hydrophilic solvent comprising a carbon atom, a hydrogen atom, and an oxygen atom. A liquid detergent product for application and cleaning, wherein the product is applied to a wash and exerts a bactericidal effect by activating the bactericidal action of the composition.
[0006]
(2) (A) fatty acid or salt thereof: 5 to 50% by mass, (B) alcoholic hydrophilic solvent composed of carbon atom, hydrogen atom and oxygen atom: more than 10 to 40% by mass,
A liquid detergent composition for coating and cleaning, comprising:
[0007]
(3) A liquid detergent composition containing (A) a fatty acid or a salt thereof and (B) an alcohol-based hydrophilic solvent composed of a carbon atom, a hydrogen atom, and an oxygen atom is applied to a soiled object, A germicidal washing method comprising activating the bactericidal action of the composition and then washing the object to be washed in an aqueous liquid.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail.
In the first invention according to the above (1), the liquid detergent composition containing (A) a fatty acid or a salt thereof and (B) an alcohol-based hydrophilic solvent comprising a carbon atom, a hydrogen atom, and an oxygen atom is stained. The composition is applied to an object to be washed, and the bactericidal action of the composition is exerted. The concentrations of the component (A) and the component (B) are not particularly limited as long as the bactericidal action is in a working range.
[0009]
As a method of the application, the cleaning composition is put in a container provided with an applicator and directly applied to the object to be washed, or the cleaning composition is put in a container provided with a sprayer, and the object to be washed is May be sprayed directly. In addition, it is effective to apply a liquid detergent to a particularly dirty portion of the article to be washed. Further, within a range that maintains the bactericidal action of the liquid detergent,
The liquid detergent may be diluted with water and sprayed on the entire object to be washed.
At this time, in order to activate the disinfecting action of the liquid detergent, it is preferably left for 5 to 60 minutes, particularly 5 to 20 minutes after being applied to the object to be washed. As for the temperature, room temperature is enough,
It is preferable to set the temperature at 25 to 35 ° C. since a bactericidal action is exhibited in a short time.
Next, the object to be washed is washed (washed and rinsed) with water using a washing machine or the like. At the time of washing, a detergent may or may not be added.
[0010]
The liquid detergent product of the present invention preferably has a container equipped with an applicator or a container equipped with a sprayer for applying the liquid detergent composition to the article to be washed. As the container provided with the applicator or the container provided with a sprayer, a general-purpose container usually used for a cleaning agent can be used.
[0011]
The liquid detergent product of the present invention is suitable for application to an object to be washed since the liquid detergent composition is composed of a component having a mild action, and is further used for washing and removing the object to be washed as described above. It has significant benefits for consumers because it has a remarkable effect on the purpose of the fungus.
[0012]
In the present invention, the term "bactericidal action" means an action of reducing the number of viable bacteria to 1/100 or less of fungi, in particular, Escherichia coli and Staphylococcus aureus in a test method described below (evaluation of bactericidal action). The bactericidal effect refers to a method for reducing the number of bacteria to 1/1000 or less of the control in a test method described below (a practical evaluation method for removing bacteria) described below, which evaluates the bactericidal action of bacteria adhered to a cloth. Refers to the effect.
[0013]
<Evaluation of bactericidal action>
(Preparation of bacterial solution)
Test bacteria Staphylococcus aureus (S. aureus ATCC 6538) and Escherichia coli (E. coli ATCC 8739) are used as test bacteria. A test bacterium cultured in a TSA agar medium (hereinafter referred to as a TSA agar medium in an 8 cm diameter dish) prepared at 37 ° C. for 24 hours in a 8 cm diameter dish was again placed on the TSA agar medium. The cells were inoculated and cultured at 37 ° C. for 24 hours. After the culture, the cultured cells are collected with a platinum loop and uniformly dispersed in 0.85% saline (physiological saline). According to a standard method, the solution is diluted with 0.85% saline so that the number of bacteria per 1 ml is about 10 ⁸ / ml, to obtain a bacterial solution.
(Measurement of viable cell count)
Take 9.9 ml of the liquid detergent composition, and add thereto 0.1 ml of the bacterial solution obtained in the preparation of the bacterial solution while stirring to prepare a test solution.
After 10 minutes, 1 ml of the test solution is collected, and 9 ml of SCDLP liquid medium is added to dilute the solution 10-fold (diluent (1)). Further, 9 ml of the SCDLP liquid medium is added to 1 ml of the diluent (1) to dilute it 10-fold to stop the sterilization reaction (diluent (2)). Next, 9 ml of a 0.85% saline solution is added to 1 ml of the diluting liquid (2) to dilute it 10-fold (diluting liquid (3)).
Using a 0.85% saline solution, a 10-fold diluted solution of the diluted solution (3) (diluted solution 4) and a 10-fold diluted solution of the diluted solution (4) (diluted solution 5) are prepared. 0.1 ml of the diluents (1), (3) and (5) were collected, inoculated on a TSA agar medium, cultured at 37 ° C. for 24 hours, and the number of colonies on a dish was measured. The number of viable bacteria was calculated by the following equation.
<Calculation of viable cell count>
Number of viable bacteria = number of colonies x dilution with detergent solution x dilution ratio with liquid medium or saline <1> Viable bacteria number = number of colonies x 100 x 10
In the case of diluent (3), the number of viable bacteria = the number of colonies x 100 x 1000
In the case of diluent (5), the number of viable bacteria = the number of colonies x 100 x 100,000
The number of colonies was counted as much as possible (usually up to about 400), and the data to be used was given priority to the one with a low dilution ratio in order to improve the accuracy.
When preparing the test solution, the same operation as above was performed using 9.9 ml of a 0.85% saline solution instead of the liquid detergent composition as a control.
The ratio of the number of viable cells in the test solution to the number of viable cells in the control is used as an evaluation index.
[0014]
The second invention described in the above (2) is characterized in that (A) a fatty acid or a salt thereof: 5 to 50% by mass, and (B) an alcoholic hydrophilic solvent composed of a carbon atom, a hydrogen atom and an oxygen atom: more than 10 to 40 % By mass of the liquid cleaning composition for coating and cleaning.
In the present invention, a saturated or unsaturated, linear or branched fatty acid salt having 8 to 22 carbon atoms is used as the fatty acid (A) or a salt thereof.
Preferably, a fatty acid having 12 to 18 carbon atoms, specifically, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid. In particular, oleic acid and lauric acid are preferred. In addition, each fatty acid may use a mixture (natural product) having a plurality of chain lengths.
As the neutralizing agent for the fatty acid, alkali metal salts such as sodium hydroxide and potassium hydroxide, and amine salts such as monoethanolamine, diethanolamine and triethanolamine are used. Particularly, amine salts such as potassium hydroxide, monoethanolamine, diethanolamine, and triethanolamine are preferred.
The amount of the component (A) is preferably 5 to 50% by mass, more preferably 10 to 50% by mass.
35% by weight, in particular 15 to 30% by weight.
When the amount is less than the above range, the bactericidal effect is insufficient, and when the amount is more than the range, the germicidal effect is saturated and the liquid property may be deteriorated.
[0015]
(B) The alcohol-based hydrophilic solvent comprising a carbon atom, a hydrogen atom and an oxygen atom is an organic compound comprising a carbon atom, a hydrogen atom and an oxygen atom and having a hydroxyl group in the molecule, having a molecular weight of 800 or less and water Is at least 11% by mass at 20 ° C.
Specific examples of the component (B) include the following 1) and 2), and one or more of them are used.
1) Lower alcohol-based methanol, ethanol, propanol, butanol and the like.
2) Glycol-based ethylene glycol, propylene glycol, butylene glycol, butyl carbitol, phenoxyethanol, phenylpolyoxyethylene alcohol, etc. Of the above, preferably ethanol, ethylene glycol Propylene glycol, phenoxyethanol, phenylpolyoxyethylene alcohol and the like.
[0016]
The compounding amount of the component (B) is preferably more than 10% by mass to 40% by mass or less,
More preferably, the content is 12 to 36% by mass, particularly 15 to 30% by mass, and particularly preferably 10 to 20% by mass in the case of ethanol and phenylpolyoxyethylene alcohol.
If the amount is less than the above range, the bactericidal effect is insufficient. If the amount exceeds the above range, the germicidal effect is saturated, which may be undesirable in terms of cost.
[0017]
In the composition of the present invention, it is preferable to further include a nonionic surfactant since the detergency is improved. As the nonionic surfactant (hereinafter, referred to as component (C)), those having the following general formula (1) are preferable.
R—X—O— (AO) nR ′ (1)
R: a linear or branched saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms X: -CH2- or -CO-
AO: at least one of the following groups

n: average number of moles of AO added n = 5 to 50
R ′: H or a straight-chain or branched-chain hydrocarbon group having 4 or less carbon atoms
In the general formula (1), R is preferably a straight-chain or branched saturated or unsaturated hydrocarbon group having 9 to 19 carbon atoms, and more preferably a straight-chain or branched hydrocarbon group having 11, 12, or 13 carbon atoms. It is a saturated hydrocarbon group and a linear or branched saturated or unsaturated hydrocarbon group having 17 carbon atoms, and may be a mixture of a single chain length and a plurality of chain lengths. As a raw material of the component (C), alcohols derived from natural fats and oils such as coconut oil, palm oil, and tallow, and synthetic alcohols derived from petroleum can be used.
[0019]
The compounding amount of the component (C) is preferably 5% by mass or more, and the total amount of the components (A) and (C) is preferably 10 to 60% by mass. In particular, it is preferable that the component (C) is 10% by mass or more and the total amount of the component (A) is 20 to 50% by mass.
[0020]
The third invention described in the above (3) is characterized in that a liquid detergent composition containing (A) a fatty acid or a salt thereof and (B) an alcohol-based hydrophilic solvent composed of a carbon atom, a hydrogen atom and an oxygen atom cleans a stain. A disinfecting and cleaning method characterized by applying the composition to the adhered article to be washed to cause a bactericidal action of the composition, and then washing the article to be washed in an aqueous liquid.
Details conform to the matters described in the first invention.
[0021]
In the present invention, the following components which are usually blended in a detergent for clothing can be blended.
1) Surfactants Various surfactants such as anionic surfactants, cationic surfactants, amphoteric surfactants and the like can be mentioned, and these can be used alone or in an appropriate combination of two or more.
[0022]
2) Chelating agents Aminocarboxylic acid derivative type chelating agents, polycarboxylic acids / salts, and the like.
Aminocarboxylic acid derivative-type chelating agents include amymethylglycine diacetate, β-alanine diacetate, iminodisuccinate, hydroxyiminodisuccinate (HIDS), serine diacetate, isoserine diacetate, aspartate diacetate (ASDA), ethylenediaminetetraacetate (EDTA), nitrilotriacetate (NTA), hydroxyethylenediaminepentaacetate (HEDTA), diethylenetriaminepentaacetate (DTPA) and the like. In addition, others can be used. These are preferably sodium salts and potassium salts.
Examples of the polycarboxylic acid and / or a salt thereof include polymer electrolytes such as polyacrylic acid, a copolymer of maleic acid and acrylic acid, and a polysaccharide polycarboxylate. The average molecular weight of the copolymer of polyacrylic acid, maleic acid and acrylic acid is preferably 1,000 to 1,000,000, more preferably 1,000 to 100,000, and sodium salts and potassium salts are preferred.
[0023]
3) Enzymes Enzymes include protease, lipase, cellulase, amylase and the like. In particular, in order to enhance the bactericidal action, it is preferable to add an enzyme having a bacteriolytic action. Specifically, Savinase 12T, Savinase 16L, Esperase 4T, Evalase 8T, Cannase 24TK, Alcalase 2T and the like are preferred.
[0024]
4) Other components having a bactericidal action, such as an antibacterial agent and a bleaching agent, can be used in combination as long as the effects of the present invention are not impaired.
In addition, colorants, fragrances, preservatives, pH adjusters, viscosity stabilizers, low-temperature stabilizers such as polyhydric alcohols, and the like can be added.
[0025]
The pH of the liquid cleaning composition of the present invention is preferably 6 to 12, preferably 7 to 11, and particularly preferably 8 to 11.
[0026]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, by applying and wash | cleaning the to-be-washed thing, the liquid detergent composition which consists of a mild component can exhibit a disinfection effect and excellent detergency.
[0027]
【Example】
Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.
Examples 1-32, Comparative Examples 1-4
<Preparation of liquid detergent composition>
The component (B), a fatty acid or a fatty acid salt (component A) saponified in advance by a conventional method was added to ion-exchanged water and mixed. Next, when a fatty acid was added, a hydroxide of an alkali metal (for example, potassium hydroxide) and / or an alkanolamine (for example, triethanolamine) were added, and saponification was performed at the time of blending. Finally, if necessary, a nonionic surfactant (C component) and a pH adjuster as other components were added to prepare liquid detergent compositions having the compositions shown in Tables 1 to 5.
The above preparation was carried out at room temperature using a 1 L beaker equipped with a stirrer (three-one motor manufactured by HEIDON Co., Ltd., rotation speed: 200 rpm) at a scale of 800 g as a liquid detergent composition.
[0028]
<Evaluation of detergency>
(I) Preparation of Evaluation Cloth 1) Preparation Method of Mud-Contaminated Cloth 50 g of three-sided mud is dispersed in 1 L of ion-exchanged water, dispersed for 20 minutes by an ultrasonic cleaner and further for 5 minutes by a homogenizer, and placed in an evaporating dish. Move. The cloth is soaked 20 times with cotton # 60 (11 × 16 cm) sandwiched between them with tweezers, pulled up repeatedly, dehydrated with a roller, and then dried with an electric dryer (105 ° C.) for 30 minutes. After drying, both sides of the contaminated cloth are polished with a sponge 25 times at a time to make the mud particles uniform and complete.
[0029]
2) Preparation method of oil-soil-contaminated cloth 40 g of three-sided mud (used as an indicator) and 60 g of triolein are dispersed in 1 L of ion-exchanged water, followed by an ultrasonic cleaner for 20 minutes and a homogenizer for 5 minutes. Disperse and transfer to evaporating dish. The cloth is soaked 20 times with cotton # 60 (11 × 16 cm) sandwiched between them with tweezers, pulled up repeatedly, dehydrated with a roller, and then dried with an electric dryer (105 ° C.) for 30 minutes. After drying, both sides of the contaminated cloth are polished with a sponge 25 times at a time to make the mud particles uniform and complete. Triolein used was genuine chemical reagent grade 1.
[0030]
(Ii) Evaluation of cleaning performance Ten pieces of mud stained cloth and 10 pieces of oil stained cloth cut in advance to 5 × 5 cm were applied to one piece of skin shirt (100% cotton, made of BVD), respectively. Two pieces, two pieces of oil stained cloth were sewn. In order to shorten the application time and reduce the time difference between the start and the end of the application, two experimenters applied the liquid detergent composition (stock solution or water diluent) to each contaminated cloth. After the completion of the application, the device was allowed to stand 5 minutes later.
Then, a two-tub washing machine (Mitsubishi Electric Corporation CW-C30A1-1) was filled with 30 L of water adjusted to a water temperature of 25 ° C. and a hardness of 5 ° DH (adjusted by adding calcium chloride to ion-exchanged water). Then, a total of 1 kg of five skin shirts sewn with a dirty cloth and coated with a cleaning solution and two plain skin shirts (for adjusting the bath ratio) were charged. Next, washing was performed with a standard amount of water for 10 minutes, and dehydration was performed. Rinse with water having a water temperature of 25 ° C. and a hardness of 5 ° DH for 1 minute. The rinsing operation was performed twice in total. Thereafter, the stained cloth was removed from the skin shirt and dried with an iron. The reflectance of the thus obtained contaminated cloth before and after washing was measured by a color difference meter (model # 90, manufactured by Nippon Denshoku Co., Ltd.), and the washing rate was calculated from the following equation (2).
Cleaning rate (%) = (A / B) × 100 (2)
Where A = K / S of the contaminated cloth before washing−K / S of the cleaning cloth
B = K / S of contaminated cloth before washing-K / S of clean cloth
K / S = (1-R) ² / 2R R: reflectance measured with a color difference meter
<Evaluation of bactericidal action>
(Preparation of bacterial solution)
Test bacteria Staphylococcus aureus (S. aureus ATCC 6538) and Escherichia coli (E. coli ATCC 8739) were used as test bacteria. A test bacterium cultured at 37 ° C for 24 hours on a TSA agar medium (hereinafter referred to as a TSA agar medium in an 8 cm diameter dish) prepared in a 8 cm diameter dish is again inoculated on the TSA agar medium. And cultured at 37 ° C. for 24 hours. After the culture, the cultured cells were collected with a platinum loop and uniformly dispersed in 0.85% saline (physiological saline). According to a standard method, the solution is diluted with 0.85% saline so that the number of bacteria per 1 ml is about 10 ⁸ / ml, to obtain a bacterial solution.
(Measurement of viable cell count)
9.9 ml of the liquid detergent compositions obtained in Examples 1 to 32 and Comparative Examples 1 to 6 were each taken, and 0.1 ml of the bacterial solution obtained in the preparation of the bacterial solution was added thereto with stirring, and tested. Liquid. After 10 minutes, 9 ml of SCDLP liquid medium was added to 1 ml of the test solution and diluted 10-fold. (Diluent (1)) Further, 9 ml of SCDLP liquid medium was added to 1 ml of the diluent (1) to dilute it 10-fold to stop the sterilization reaction (diluent (2)). Next, 9 ml of a 0.85% saline solution was added to 1 ml of the diluent (2) to dilute it 10-fold (diluent (3)). Similarly, using a 0.85% saline solution, a 10-fold diluent of the diluent (3) (diluent (4)) and a 10-fold diluent of the diluent (4) (diluent (5)) were prepared. . 0.1 ml of the diluents (1), (3) and (5) were collected, inoculated on a TSA agar medium, cultured at 37 ° C. for 24 hours, and the number of colonies on a dish was measured. The number of viable bacteria was calculated by the following equation.
<Calculation of viable cell count>
Number of viable bacteria = number of colonies x dilution with detergent solution x dilution ratio with liquid medium or saline <1> Viable bacteria number = number of colonies x 100 x 10
In the case of diluent (3), the number of viable bacteria = the number of colonies x 100 x 1000
In the case of diluent (5), the number of viable bacteria = the number of colonies x 100 x 100,000
The number of colonies was counted as much as possible (usually up to about 400), and the data to be used was given priority to the one with a low dilution ratio in order to improve the accuracy.
When preparing the test solution, the same operation as above was performed using 9.9 ml of a 0.85% saline solution instead of the liquid detergent composition as a control. The ratio of the viable cell count of the test solution to the viable cell count of the control was used as an evaluation index as follows.

[0032]
<Practical evaluation method for eradication>
The eradication effect of the bacteria adhered to the cloth was evaluated for the compositions of Examples 6 and 14 by the following method, and the results are shown in Table 6 as Examples 6-2 and 14-2.
Previously, the cotton fabric 5 cm × 5 cm was sterilized, E. coli bacterial solution used in the evaluation of eradication performance (10 ⁸ / ml) 50 [mu] L was applied. After drying in a safety cabinet for 10 minutes, the bacteria were fixed on a cotton cloth to obtain a test cloth.
Next, the test cloth was transferred to a dish having a diameter of 8 cm, and 2 ml of each of the compositions of Examples 6 and 14 was uniformly applied to the entire test cloth. After allowing to stand for 10 minutes, the mixture was transferred to a vinyl bag using tweezers, and 48 ml of SCDLP liquid medium was added thereto and set in an extractor (model SH-IIM manufactured by ELMEX). After performing the extraction operation for 1 minute, 10 ml thereof was collected in a test tube (extracted liquid).
9 ml of 0.85% saline was added to 1 ml of the extract to dilute it 10-fold (diluent (1)). Similarly, using a 0.85% saline solution, a 10-fold diluted solution of the diluent (1) (diluent (2)) and a 10-fold diluted solution of the diluent (2) (diluted solution (3)) were prepared. . 0.1 ml of each of the diluents (1), (2), and (3) was collected, inoculated on a TSA agar medium, cultured at 37 ° C. for 24 hours, and the number of colonies on a petri dish was measured. The number of viable bacteria was calculated by the following equation.
<Calculation of viable cell count>
Number of viable bacteria = number of colonies x dilution ratio with extract solution x dilution ratio with saline solution In the case of diluent (1) Viable bacteria count = number of colonies x 1000 x 10
In the case of diluent (2), the number of viable bacteria = the number of colonies x 1000 x 100
In the case of diluent (3), the number of viable bacteria = the number of colonies x 1000 x 1000
The number of colonies was counted as much as possible (usually up to about 400), and the data to be used was given priority to the one with a low dilution ratio in order to improve the accuracy.
Further, instead of the liquid detergent composition, 2 ml of a 0.85% saline solution was applied to the test cloth and allowed to stand for 10 minutes, and the same operation as above was performed using the test cloth as a control. The ratio of the viable cell count of the test solution to the viable cell count of the control was used as an evaluation index as follows.

[0033]
The meanings and details of the abbreviations in Tables 1 to 5 are as follows.
1) Component A / C12K: A product obtained by neutralizing lauric acid (trade name, Nissan NAA122) of Nippon Oil & Fats Co. with potassium hydroxide.
C12TEA: a product obtained by neutralizing lauric acid (trade name: Nissan NAA122) of Nippon Yushi Co., Ltd. with triethanolamine.
C181K: Lion Oleo Chemical Co., Ltd. oleyl methyl ester (trade name: Pastel M181) neutralized with a 48% aqueous potassium hydroxide solution C181MEA: Nippon Oil & Fats Co., Ltd., oleic acid (trade name: extra olein) monoethanolamine Neutralized with
-C181DEA: Neutralized oleic acid (trade name: extra olein) from Nippon Oil & Fats Co., Ltd. with diethanolamine-C181TEA: Neutralized oleic acid (trade name: extra olein) from Nippon Oil & Fats Co., Ltd. with triethanolamine Palm oil TEA: Palm oil fatty acid (Lion Corporation laboratory product) neutralized with triethanolamine.
-Palm oil TEA: Palm oil fatty acid (Lion Co., Ltd. laboratory product) neutralized with triethanolamine (A) Alkaline agent for component neutralization-Monoethanolamine: Trade name of Mitsui Chemicals, Inc. Monoethanol- Amine MEA
・ Diethanolamine: Trade name of Mitsui Chemicals, Inc. DEA80 80% pure
・ Triethanolamine: trade name of Nippon Shokubai Co., Ltd. Triethanolamine S-80 80% pure
・ Potassium hydroxide: Asahi Glass Co., Ltd. Product name Liquid potash 48% pure
[0034]
2) Component (B) Ethanol: 99.5% purity, manufactured by Nippon Ethanol. Ethylene glycol: 98.5% purity, manufactured by Mitsubishi Chemical Corporation. Propylene glycol: manufactured by Asahi Glass Co., Ltd. Phenylpolyoxyethylene alcohol: 90% pure content Sanyo Chemical Industries, Ltd.
Product name Sunfine PH-20D
[0035]
3) Component (C) Higher alcohol ethoxylate (Mitsubishi Chemical Co., Ltd., product name: Diadol 13) to which EO and PO have been added by a standard method in a laboratory of Lion Corporation.
C13AE5: average number of moles of added EO 5
C13AE15: １２12
C13AE1503: # 15 Average PO addition mole number 3
-Methyl ester (Lion Oreo Chemical Co., Ltd., trade name: Pastel M12, Pastel M181) added with EO in the laboratory of Lion Corporation.
C12MEE15: Pastel M12, average EO addition mole number 15
C181MEE15: Pastel M181, average number of moles of added EO 15
-Natural alcohol-based nonion (Lion Co., Ltd., trade name: Leox CC90) Palm oil alcohol Average number of moles added to EO 9
[0036]
4) Other components / pH adjuster The pH of the composition was adjusted to be in the range of 7 to 11 using citric acid (manufactured by Fuso Chemical Industry Co., Ltd.).
・ Fragrances A, B, C, D
Fragrance compositions A, B, C, D described in Tables 11 to 18 of Japanese Patent Application No. 2000-346626, respectively.
LAS salt C10-14 straight-chain alkylbenzene sulfonic acid monoethanolamine salt Straight-chain alkylbenzene sulfonsan (Lypon LH-200 (96% pure), manufactured by Lion Corporation) is converted into monoethanolamine (Mitsui Chemicals, Inc. monoethanolamine). MEA) neutralized.
・ Chelating agent Acrylic / maleic acid copolymer (BASF Co., Ltd. brand name Sokaran CP7)
[0037]
[Table 1]

[0038]
[Table 2]

[0039]
[Table 3]

[0040]
[Table 4]

[0041]
[Table 5]

[0042]
[Table 6]

Claims (4)

A liquid detergent composition containing (A) a fatty acid or a salt thereof and (B) an alcohol-based hydrophilic solvent comprising a carbon atom, a hydrogen atom, and an oxygen atom, wherein the composition is applied to a soiled object to be washed. A liquid detergent product for application and cleaning, wherein the composition has a disinfecting effect by applying the bactericidal action of the composition. (A) a fatty acid or a salt thereof: 5 to 50% by mass, (B) an alcoholic hydrophilic solvent composed of a carbon atom, a hydrogen atom and an oxygen atom: more than 10 to 40% by mass,
A liquid detergent composition for coating and cleaning, comprising: The product according to claim 1 or the composition according to claim 2, further comprising a nonionic surfactant. A liquid detergent composition containing (A) a fatty acid or a salt thereof and (B) an alcohol-based hydrophilic solvent composed of a carbon atom, a hydrogen atom and an oxygen atom is applied to a soiled object to be washed, and the composition is applied. A disinfecting and washing method, which comprises activating the bactericidal action of the above, and then washing the object to be washed in an aqueous liquid.