JP4302975B2 - Powder bleach detergent composition - Google Patents

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JP4302975B2
JP4302975B2 JP2002374099A JP2002374099A JP4302975B2 JP 4302975 B2 JP4302975 B2 JP 4302975B2 JP 2002374099 A JP2002374099 A JP 2002374099A JP 2002374099 A JP2002374099 A JP 2002374099A JP 4302975 B2 JP4302975 B2 JP 4302975B2
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mass
component
bleaching
composition
detergency
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JP2004204016A (en
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重晴 平尾
めぐみ 宮澤
光男 佐渡
有紀 稲毛田
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ジョンソンディバーシー株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、布帛の漂白洗浄に好適に用いられる粉末状の漂白洗浄剤組成物に関する。詳しくは、漂白力に優れることはもとより、洗浄力と貯蔵安定性に優れ、さらには優れた殺菌効果を有し、台所用フキン等の布帛の漂白、洗浄、殺菌に好適に用いられる粉末漂白洗浄剤組成物に関するものである。
【0002】
【従来の技術】
従来から、繊維製品の漂白には、塩素系の漂白剤又は漂白洗浄剤、あるいは酸素系の漂白剤又は漂白洗浄剤が使用されている。
次亜塩素酸ナトリウムを主成分とした塩素系の漂白剤又は漂白洗浄剤は、低温でも漂白力が高く、高い殺菌効果を有するもの、刺激臭を有すること、色物や柄物の繊維製品には使用できないこと、酸性物質との併用による誤用事故のおそれがあること等の問題点があり、洗浄剤組成物としては好んで用いられない傾向にある。
一方、酸素系の漂白剤又は漂白洗浄剤としては、水溶液としたときに過酸化水素を放出する過炭酸ナトリウムや過ホウ酸ナトリウムを主成分としたものがよく知られているが、酸素系の漂白剤又は漂白洗浄剤は、塩素系の漂白剤又は漂白洗浄剤に比べて漂白力が弱いという問題点がある。そのため、過酸化水素と反応して、より漂白力の高い有機過酸を生成する有機過酸前駆体等の漂白活性剤を、過炭酸ナトリウムや過ホウ酸ナトリウムと併用することにより、酸素系の漂白剤又は漂白洗浄剤の漂白力を高める試みがなされてきた。
【0003】
このような、過酸化物と漂白活性剤とを併用した漂白剤又は漂泊洗浄剤としては、例えば、過炭酸塩又は過ホウ酸塩と、テトラアセチルエチレンジアミン又はグルコースペンタアセテートと、アニオン界面活性剤及び/又はノニオン界面活性剤と、特定の高分子重合体を含有する、台所等のハードな汚れに対する洗浄力に優れた漂白剤組成物が開示されており(例えば、特許文献1参照)、過酸化物と、漂白活性化剤と、特定の酵素と、特定の高分子重合体を含有する、色物や柄物の繊維製品の変色や褪色を改善した漂白剤組成物が開示されている(例えば、特許文献2参照)。また、過酸素化合物と、有機過酸前駆体と、特定のキレート剤と、アルカリ剤を含有する、漂白力に優れた漂白洗浄剤組成物が開示されている(例えば、特許文献3参照)。
【0004】
ところで、台所、厨房及び食品加工工場等において、フキン等の布帛は、調理機具や食器等のように、食品に触れるものに対して用いられ、食品にも直接触れる可能性があるものである。そのため、衛生上の観点から、これらフキン等は殺菌され、常に衛生的であることが求められる。
過酸化物と漂白活性剤とを併用した、殺菌効果を有する洗浄剤としては、例えば、無機過酸化物と、テトラアセチルエチレンジアミンと、非イオン界面活性剤を含有する、洗浄力と、殺菌・除菌効果に優れた排水管用洗浄剤組成物が開示されており(例えば、特許文献4参照)、また、無機過酸化物と、テトラアセチルエチレンジアミンと、プロテアーゼを含有し、さらに無機過酸化物とテトラアセチルエチレンジアミンの重量比が10/1〜2/1である、医療器具や備品の殺菌効果と洗浄力に優れた殺菌洗浄剤組成物が開示されている(例えば、特許文献5参照)。
【0005】
しかしながら、上記特許文献4及び5に記載の洗浄剤組成物は、硬表面を洗浄の対象としたものであり、繊維製品である布帛に対して、漂白・洗浄・殺菌を行う洗浄剤組成物ではない。また、上記特許文献1〜特許文献3には、優れた洗浄力や漂白力を有する組成物が開示されているものの、殺菌効果についてはなんら考慮されていない。
フキン等を通常の洗浄剤で洗浄した後に、改めて殺菌するのは効率的ではないため、洗浄や漂白と同時に殺菌をもすることができる漂白洗浄剤の開発が望まれている。
【0006】
【特許文献1】
特開平4−331299号公報
【特許文献2】
特開平5−320696号公報
【特許文献3】
特開平11−217590号公報
【特許文献4】
特開平3−131700号公報
【特許文献5】
特開2001−72997号公報
【0007】
【発明が解決しようとする課題】
本発明は、上記事情に鑑みなされたもので、漂白力に優れることはもとより、洗浄力と貯蔵安定性に優れ、さらには優れた殺菌効果を有し、特に衛生的であることを求められる、台所用フキン等の布帛の漂白・洗浄・殺菌に好適に用いられる粉末漂白洗浄剤組成物を提供することを目的とするものである。
【0008】
【課題を解決するための手段】
本発明者らは、上記目的を達成するべく鋭意研究を重ねた結果、過酸素化合物と、有機過酸前駆体と、陰イオン界面活性剤及び非イオン界面活性剤の組み合わせである界面活性剤と、ヒドロキシ多価カルボン酸及びその塩から選ばれる少なくとも一種と、特定の組み合わせからなる酵素と、炭酸塩と、キシレンスルホン酸塩とを組み合わせることにより、漂白力に優れることはもとより、洗浄力と貯蔵安定性に優れ、さらには優れた殺菌効果を有し、特に衛生的であることを求められる、台所用フキン等の布帛の漂白、洗浄、殺菌に好適に用いられる粉末漂白洗浄剤組成物が得られるという知見を得た。本発明はかかる知見に基づいて完成したものである。
すなわち、本発明は、以下の粉末漂白洗浄剤組成物を提供するものである。
【0009】
1.(A)過酸素化合物15〜75質量%、(B)有機過酸前駆体1〜5質量%、(C)陰イオン界面活性剤及び非イオン界面活性剤の組み合わせである界面活性剤0.1〜20質量%、(D)ヒドロキシ多価カルボン酸及びその塩から選ばれる少なくとも一種0.1〜10質量%、(E)アミラーゼ、プロテアーゼ及びリパーゼの組み合わせである酵素0.05〜5質量%(F)炭酸塩及び(G)キシレンスルホン酸塩0.1〜10質量%を含有し、且つ(A)成分と(B)成分の質量比が(A)/(B)=30/1〜15/1であることを特徴とする粉末漂白洗浄剤組成物。
.さらに、(H)ポリアクリル酸、アクリル酸とマレイン酸との共重合体、ポリ−α−ヒドロキシアクリル酸及びこれらの塩から選ばれる少なくとも一種の高分子重合体0.1〜5質量%を含有してなる上記の粉末漂白洗浄剤組成物。
.(A)成分の過酸素化合物が、過炭酸ナトリウムである上記1または2の粉末漂白洗浄剤組成物。
.(B)成分の有機過酸前駆体が、テトラアセチルエチレンジアミンである上記1〜のいずれかの粉末漂白洗浄剤組成物。
.布帛の漂白洗浄に供されるものである上記1〜のいずれかの粉末漂白洗浄剤組成物。
【0010】
【発明の実施の形態】
本発明の粉末漂白洗浄剤組成物(以下、「本組成物」ということがある。)は、有効成分として、(A)過酸素化合物15〜75質量%、(B)有機過酸前駆体1〜5質量%、(C)陰イオン界面活性剤及び非イオン界面活性剤の組み合わせである界面活性剤0.1〜20質量%、(D)ヒドロキシ多価カルボン酸及びその塩から選ばれる少なくとも一種0.1〜10質量%、(E)アミラーゼ、プロテアーゼ及びリパーゼの組み合わせである酵素0.05〜5質量%(F)炭酸塩及び(G)キシレンスルホン酸塩0.1〜10質量%を含有する組成物である。
【0011】
本発明に用いられる(A)成分の過酸素化合物としては、例えば、過炭酸ナトリウム、過炭酸カリウムなどの過炭酸塩、過ホウ酸ナトリウムなどの過ホウ酸塩、過フタル酸ナトリウムなどの過フタル酸塩、過リン酸塩、硫酸ナトリウムやケイ酸ナトリウムなどに過酸化水素を付加させたもの等が挙げられる。これらは単独で用いても、二種以上を組み合わせて用いてもよい。これらのうち、安全性や環境保全の点から、過炭酸塩が好ましく、特に過炭酸ナトリウムが好ましい。これらの過酸素化合物は、その有効酸素量が、過炭酸ナトリウムであれば11%含有のものが、過ホウ酸ナトリウムであれば15%含有のものが、通常用いられる。
【0012】
この(A)成分の過酸素化合物の配合量は、本発明の粉末漂白洗浄剤組成物中15〜75質量%の範囲である。この配合量が15質量%未満では漂白効果が充分に発揮されず、また、75質量%を超えて配合しても漂白効果の向上は認められず、むしろ経済的に不利となる上、他の成分の配合量が制約を受けることになる。経済性及び他の性能とのバランスなどの点から、上記過酸素化合物の配合量は、本組成物中30〜60質量%の範囲が好ましく、さらに漂白効果の点から40〜60質量%の範囲が好ましい。
【0013】
本発明に用いられる(B)成分の有機過酸前駆体は、過酸化水素と反応して、より漂白力の高い有機過酸を生成するものであり、漂白力を向上させるとともに、洗浄力や殺菌効果を向上させる目的で配合される。有機過酸前駆体としては、グルコースペンタアセテート、テトラアセチルエチレンジアミン等が挙げられるが、容易に入手できる点から、テトラアセチルエチレンジアミンが好ましい。
この(B)成分の有機過酸前駆体の配合量は、本組成物中1〜5質量%の範囲である。この配合量が1質量%未満では、有機過酸前駆体の配合効果が充分に発揮されず、また、5質量%を超えて配合しても、その配合効果のより一層の向上は認められず、むしろ経済的に不利となる。漂白力、洗浄力及び殺菌効果の点から、上記有機過酸前駆体の配合量は、本組成物中2〜5質量%の範囲が好ましく、さらに経済性の点から2〜4質量%の範囲が好ましい。
【0014】
また、本組成物において、上記(A)成分と(B)成分の質量比は、(A)/(B)=30/1〜15/1の範囲に定められる。この比率が30/1を超えると、布帛が傷みやすくなり、一方、この比率が15/1未満であると、漂白力、洗浄力及び殺菌効果が充分に発揮されない。漂白力、洗浄力及び殺菌効果の点から、上記(A)成分と(B)成分の質量比は25/1〜15/1が好ましく、さらに経済性の点から20/1〜15/1が好ましい。
【0015】
本発明に用いられる(C)成分の界面活性剤は、陰イオン界面活性剤及び非イオン界面活性剤を組み合わせたものであり、洗浄力を向上させる目的で配合される。
陰イオン界面活性剤としては、脂肪酸塩、アルキルエーテル又はアルケニルエーテル硫酸塩、アルキル又はアルケニル硫酸塩、オレフィンスルホン酸塩、アルカンスルホン酸塩、アルキルエーテル又はアルケニルエーテルカルボン酸塩、α−スルホ脂肪酸塩又はそのエステル類等を挙げることができる。
これらの対イオンとしては、例えばナトリウム塩、カリウム塩、アミン塩及びアンモニウム塩が挙げられ、なかでもナトリウム塩及びアンモニウム塩が好ましい。
陰イオン界面活性剤としては、洗浄力の点から、脂肪酸塩、アルキルベンゼンスルホン酸塩、アルカンスルホン酸塩、アルキル硫酸塩、アルキルエーテル硫酸エステル塩及びα―オレフィンスルホン酸塩が好ましく、さらに経済性の点から、脂肪酸ナトリウム、アルキルベンゼンスルホン酸ナトリウム、アルカンスルホン酸ナトリウム、アルキル硫酸ナトリウム及びアルキルエーテル硫酸ナトリウムが好ましい。
【0016】
非イオン界面活性剤としては、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ケニルエーテル、ポリオキシアルキレンアルキルフェニルエーテル、ポリオキシアルキレンアルケニルフェニルエーテル、高級脂肪酸アルカノールアミド又はそのアルキレンオキサイド付加物、グリセリン脂肪酸エステル、蔗糖脂肪酸エステル、アルキルポリグルコシド、アミンオキサイド等が挙げられる。これらの中で、洗浄力及び被洗浄物への浸透性の点から、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フェニルエーテルが好ましく、さらに、環境への影響が小さい点から、ポリオキシアルキレンアルキルエーテルが好ましい。
(C)成分として、上記陰イオン界面活性剤と非イオン界面活性剤を併用することにより、相乗的に洗浄力の向上に寄与するという効果を奏する。また、本組成物中の酵素、特にプロテアーゼの安定性の向上にも寄与する。
【0017】
この(C)成分の配合量は、本組成物中0.1〜20質量%の範囲である。この配合量が0.1質量%未満では洗浄力に劣り、また20質量%を超えて配合しても、洗浄力に向上は認められず、むしろ経済的に不利となる。洗浄力の点から、上記界面活性剤の配合量は、本組成物中2〜20質量%の範囲が好ましく、さらに、経済性の点から2〜15質量%の範囲が好ましい。
【0018】
本発明に用いられる(D)成分は、ヒドロキシ多価カルボン酸及びその塩から選ばれる少なくとも一種である。この(D)成分は水溶性でキレート能を示し、漂白力や洗浄力の向上に寄与し、特に、血液汚れに対する洗浄力の向上に寄与する。
ヒドロキシ多価カルボン酸及びその塩としては、例えば、クエン酸,リンゴ酸,グルコン酸,酒石酸,グルコール酸,乳酸及びこれらの塩等が挙げられる。これらは酸の形で用いてもよく、一部又は全部が塩の形でもよい。その塩としては、例えばナトリウム塩、カリウム塩、アミン塩及びアンモニウム塩等が挙げられるが、なかでもナトリウム塩及びアンモニウム塩が好ましい。
(D)成分としては、洗浄力及び経済性の点から、クエン酸、グルコン酸及びこれらの塩が好ましく、さらに本組成物の貯蔵安定性の点から、クエン酸ナトリウムが好ましい。
【0019】
この(D)成分の配合量は、本組成物中0.1〜10質量%の範囲である。この配合量が0.1質量%未満では漂白力及び洗浄力に劣り、また、10質量%を超えて配合しても、漂白力及び洗浄力の向上は認められず、本組成物の貯蔵安定性が低下する。漂白力及び洗浄力の点から、(D)成分の配合量は、本組成物中1〜10質量%の範囲が好ましく、さらに貯蔵安定性及び経済性の点から、1〜5質量%の範囲が好ましい。
【0020】
本発明に用いられる(E)成分の酵素としては、本組成物の水溶液がアルカリ性となることから、アルカリ性でも失活しないものが好ましく、特に、フキン等の布帛に付着したタンパク質、デンプン及び油脂を分解し、洗浄力の向上に寄与するという点から、アミラーゼ、プロテアーゼ及びリパーゼが好ましい。そして、本発明では、デンプン汚れ、タンパク質汚れ、油脂汚れなどの複合汚れに対する洗浄力の向上に寄与するという点から、上記アミラーゼとプロテアーゼとリパーゼを併用する。
ここで、アミラーゼとしては、例えばターマミル(ノボザイム社製),デュラミル(ノボザイム社製),マキサミル(ジェネンコア社製)等が、プロテアーゼとしては、例えばサビナーゼ(ノボザイム社製),エスペラーゼ(ノボザイム社製),エバラーゼ(ノボザイム社製),デュラザイム(ノボザイム社製),マキサカル(ジェネンコア社製)等が、リパーゼとしては、例えばリポラーゼ(ノボザイム社製)等が、市販品として容易に入手可能である。
【0021】
上記(E)成分の酵素を含有させることにより、得られる漂白洗浄剤組成物は、デンプン汚れ、タンパク質汚れ、油脂汚れなどに対して、良好な除去効果を発揮する。この酵素の配合量は、本組成物中0.05〜5質量%の範囲である。この配合量が0.05質量%以下では酵素を配合した効果が充分に発揮されず、また5質量%を超え配合しても、その配合量の割には効果の向上があまり認められず、むしろ経済的に不利になる。酵素の配合効果及び経済性の点から、この酵素の配合量は0.1〜5質量%の範囲が好ましく、さらに経済性の点から、0.1〜2質量%の範囲が好ましい。
【0022】
本発明に用いられる(F)成分の炭酸塩としては、炭酸塩、重炭酸塩、セスキ炭酸塩が挙げられ、これらは単独で用いても、二種以上を組み合わせて用いてもよい。その塩としては、例えばナトリウム塩、カリウム塩、アミン塩及びアンモニウム塩が挙げられるが、洗浄力の点から、カリウム塩及びナトリウム塩が好ましく、さらに経済性の点から、ナトリウム塩が好ましい。
(F)成分は、漂白力、洗浄力及び殺菌効果を向上させるために加えられ、その配合量は、本組成物全体を100質量%とするのに要する量であり、本組成物中おおむね3〜80質量%である。他の性能とのバランスの点から、上記炭酸塩の配合量は、本組成物中5〜70質量%の範囲が好ましく、さらに他の成分とのバランスによる洗浄力及び経済性の点から、10〜60質量%の範囲が好ましい。
【0023】
本発明の組成物には、上記(A)〜(F)の必須成分に加えて、(G)成分として、キシレンスルホン酸塩を配合することが、汚れを可溶化して(C)成分の界面活性剤との相乗効果により洗浄力を向上させる点から必要である。その塩としては、ナトリウム塩及びカリウム塩等が挙げられるが、ナトリウム塩が好まし、経済性、貯蔵安定性の点から、キシレンスルホン酸ナトリウムが好ましい。
【0024】
上記キシレンスルホン酸塩の配合量は、本組成物中0.1〜10質量%の範囲である。この配合量が0.1質量%未満では、洗浄力の向上効果が充分に発揮されないおそれがあり、また、10質量%を超えて配合しても、その配合量の割には効果の向上があまり認められず、むしろ経済的に不利になる。経済性の点から、上記キシレンスルホン酸塩の配合量は、本組成物中0.5〜5質量%の範囲がより好ましく、さらに洗浄力の点から、2〜5質量%の範囲がさらに好ましい。
【0025】
本発明の組成物には、さらに(H)成分として、ポリアクリル酸、アクリル酸とマレイン酸との共重合体、ポリ−α−ヒドロキシアクリル酸及びこれらの塩から選ばれる少なくとも一種の高分子重合体を配合することができる。この高分子重合体は、水溶性でキレート能を示すため、この高分子重合体を配合すると、洗浄力がより向上し、また、汚れを洗浄液中に分散させて再汚染を防止する効果にも寄与する。これらの高分子重合体は、架橋型のものではない。この高分子重合体は、酸の形であってもよく、一部又は全部が塩の形であってもよい。その塩としては、例えばナトリウム塩、カリウム塩、アミン塩及びアンモニウム塩が挙げられ、なかでも、水への溶解性の点からナトリウム塩及びアンモニウム塩が好ましく、さらに経済性の点から、ナトリウム塩が好ましい。
(H)成分としては、洗浄力及び再汚染防止効果の点から、ポリ−α−ヒドロキシアクリル酸ナトリウムが好ましい。
【0026】
(H)成分のポリアクリル酸及び/又はその塩の平均分子量は、本組成物の安定性の点から、1,000〜100,000の範囲が好ましく、さらに洗浄力の向上の点から、3,000〜10,000の範囲がより好ましい。
(H)成分のアクリル酸とマレイン酸との共重合体及び/又はその塩の平均分子量は、本組成物の安定性の点から、3,000〜100,000の範囲が好ましく、さらに洗浄力の向上の点から、50,000〜80,000の範囲がより好ましい。
【0027】
(H)成分のポリ−α−ヒドロキシアクリル酸及び/又はその塩の平均分子量は1,000〜1,000,000の範囲が好ましく、水溶液としたときの有効酸素の安定性の点から、2,000〜800,000の範囲がより好ましく、さらに漂白力の点から、2,000〜200,000の範囲がさらに好ましい。
【0028】
この(H)成分の配合量は、本組成物中0.1〜5質量%の範囲が好ましい。この配合量が0.1質量%未満では洗浄力や再汚染防止の向上効果が乏しくなるおそれがあり、また、5質量%を超えて配合しても、洗浄力や再汚染防止の向上効果は飽和になり、むしろ経済的に不利となる。洗浄力及び経済性の点から、上記(H)成分の配合量は、本組成物の中0.5〜3質量%の範囲が好ましい。
【0029】
本発明の粉末漂白洗浄剤組成物には、上記各成分に加え、本発明の目的を阻害しない範囲で必要に応じて、さらに、陰イオン界面活性剤及び非イオン界面活性剤以外の界面活性剤、硫酸塩、色素、香料、殺菌剤、防腐剤等を配合することができる。
本発明の組成物は、布帛の漂白洗浄用には5〜60℃の水道水に希釈した水溶液として用いられる。水温が5℃未満では漂白効果及び洗浄力が低下し、60℃を超えると漂白洗浄の作業性に乏しく、作業員に火傷のおそれも生じる。
【0030】
本発明の組成物は、被洗浄物に付着した色素汚れや有機汚れの量に応じて、0.08〜2質量%の水溶液として用いられ、このときの有効酸素濃度は1.6〜11%であることが好ましい。また、このときの水溶液のpHは弱アルカリ性ないしアルカリ性であることが好ましく、特に有効酸素の安定性から、8〜11程度であることが好ましい。
本組成物を用いてフキン等の布帛を漂白、洗浄、殺菌する方法としては、
1.洗い桶等に水溶液を調製して被洗浄物を15分〜2時間浸け置きした後、水ですすぐ方法、
2.本組成物を用いて電気洗濯機にて洗濯する方法、
3.洗い桶等に本組成物の水溶液を調製して被洗浄物を浸け置きした後、本組成物を用いて電気洗濯機にて洗濯する方法
等が挙げられる。被洗浄物に付着した色素汚れや有機汚れの量が多い場合には、30〜50℃のぬるま湯で本組成物を希釈した水溶液に被洗浄物を浸け置きした後、電気洗濯機にて洗濯する方法が好ましい。
【0031】
【実施例】
以下、本発明の粉末漂白洗浄剤組成物について、実施例と比較例により本発明を詳細に説明する。なお、本発明はこれらに限定されるものではない。
【0032】
実施例1〜15、参考例1〜及び比較例1〜8
表1〜4に示す粉末漂白洗浄剤組成物を調製し、各種試験に供した。なお、表中の各成分の数値は、各成分の含有量(質量%)である。そして、成分(A)〜(H)及び任意成分の和は100質量%となっている。
そして、得られた各種粉末漂白洗浄剤組成物について、漂白力、洗浄力、貯蔵安定性、殺菌効果の各試験項目について、以下の試験方法と判定基準により評価し、その結果を後記の表1〜4に併せて示す。
【0033】
(1)漂白力試験
[汚染布の作製]
水道水1000ミリリットルに対して粉茶20gを入れ、1時間沸騰させた後、ガーゼで濾過して、室温まで冷却し、緑茶溶液とした。一方、水酸化カルシウムの飽和水溶液を調製し、定着液とした。綿ブロード#60の白布を緑茶溶液に5分間浸し、続いて定着液に5分間浸した後、水洗して乾燥させた。この工程を3回繰り返して緑茶汚染布を作製した。
[試験方法]
水道水を用いて0.1質量%に調製した水温50℃の各組成物溶液500ミリリットルに、上記により作製した緑茶汚染布(8cm×8cm)を入れ、スターラーで10分間撹拌した後、取り出して5分間同様に水道水で撹拌すすぎをし、自然乾燥させた。白色度は色差計にて測定し、漂白率は次式にて求め、下記の判定基準で評価した。
漂白率(%)=[(漂白後の白色度―漂白前の白色度)/(汚染前の白布の白色度―漂白前の白色度)]×100
[判定基準]
◎:漂白率80%以上
○:漂白率65%以上80%未満
△:漂白率50%以上65%未満
×:漂白率50%未満
【0034】
(2)洗浄力試験
[汚染布の調製]
生魚(鰯)を擂りつぶし、綿布(8cm×8cm)に薄く均一に塗り付け、室温にて自然乾燥させて、生魚汚染布を作製した。
[試験方法]
水道水を用いて0.1質量%に調製した水温5℃の各組成物溶液500ミリリットルに、上記により作製した生魚汚染布(8cm×8cm)を入れ、スターラーで10分撹拌した後、取り出して5分間同様に水道水で撹拌すすぎをし、自然乾燥させた。白色度は色差計にて測定し、洗浄率は次式にて求め、下記の判定基準で評価した。
洗浄率(%)=[(洗浄後の白色度―洗浄前の白色度)/(汚染前の白布の白色度―洗浄前の白色度)]×100
[判定基準]
◎:洗浄率70%以上
○:洗浄率60%以上70%未満
△:洗浄率50%以上60%未満
×:洗浄率50%未満
【0035】
(3)貯蔵安定性試験
[試験方法]
各組成物50gを、内容積100ミリリットルのガラス瓶に入れ、40℃で3ヶ月間保存し、保存前後における有効酸素濃度を測定した。有効酸素の安定性は次式を用いて算出し、下記の判定基準で評価した。
有効酸素の安定性(%)=[(3ヶ月保存後の有効酸素濃度)/(保存前の有効酸素濃度)]×100
[判定基準]
◎:有効酸素の安定性90%以上
○:有効酸素の安定性70%以上90%未満
△:有効酸素の安定性50%以上70%未満
×:有効酸素の安定性50%未満
【0036】
(4)殺菌効果試験
[試験方法]
滅菌水を用いて調製した各組成物の0.1質量%水溶液100ミリリットル中に、24時間培養した黄色ブドウ球菌(Staphylococcus aureus ATCC6538株)又は大腸菌(E.coli ATCC11229株)を1ミリリットル加え、40℃で、10分間、20分間及び30分間接触させた。所定時間接触させた希釈液を100マイクロリットル採取し、10ミリリットルのSCDLP培地に接種した。24時間、37℃で培養した後の培地の濁りの有無から、目視により、以下の判定基準で評価した。
[判定基準]
◎:10分以内に黄色ブドウ球菌、大腸菌ともに殺菌できた。
○:10分を超え20分以内に黄色ブドウ球菌、大腸菌ともに殺菌できた。
△:20分を超え30分以内に黄色ブドウ球菌、大腸菌ともに殺菌できた。
×:30分を以内では殺菌できなかった。
【0037】
なお、以下の表1〜4に示す成分の詳細は以下の通りである。
*テトラアセチルエチレンジアミン:テトラアセチルエチレンジアミン(クラリアントジャパン社製/商品名:PERACTIVE AN)
*陰イオン界面活性剤1:脂肪酸ナトリウム(ライオン社製/商品名:Powder Soap)
*陰イオン界面活性剤2:ラウリル硫酸ナトリウム(花王社製/商品名:Emal 10 Powder)
*非イオン界面活性剤1:ポリオキシエチレンアルキルエーテル;C10(ナロータープ)分岐アルコールのエチレンオキサイド7モル付加物(三洋化成工業社製/商品名:Naroacty ID70)
*非イオン界面活性剤2:ポリオキシアルキレンアルキルエーテル;C16〜18の直鎖アルコールのエチレンオキサイド25モル付加物(BASF社製/商品名:Lutensol AT25)
*アミラーゼ:アミラーゼ(ノボザイム社製/商品名:Duramyl 60T)
*プロテアーゼ:プロテアーゼ(ノボザイム社製/商品名:Evelase 8.0T)
*リパーゼ:リパーゼ(ノボザイム社製/商品名:Lipolase 100T)
*PA:ポリアクリル酸ナトリウム;重量平均分子量8,000(BASF社製/商品名:Sokalan PA30 CLG)
*MAPA:アクリル酸・マレイン酸共重合体のナトリウム塩(部分中和物);重量平均分子量70,000(BASF社製/商品名:Sokalan CP45 G)
*PHAS:ポリ−α−ヒドロキシアクリル酸ナトリウム;粘度平均分子量12,000(日本パーオキサイド社製/商品名:ペールプラック1200)
【0038】
【表1】

Figure 0004302975
【0039】
【表2】
Figure 0004302975
【0040】
【表3】
Figure 0004302975
【0041】
【表4】
Figure 0004302975
【0042】
本発明の粉末漂白洗浄剤組成物である実施例1〜15において、漂白力、洗浄力、貯蔵安定性、殺菌効果のいずれの試験項目においても、良好な性能を示すことがわかる。なお、漂白力試験において、水溶液の温度を5℃としたときの場合も、50℃と同様に、良好な結果を得ることができた。
一方、(A)成分である過酸素化合物を含有しない比較例1は、漂白力、洗浄力及び殺菌効果に劣ることがわかり、(B)成分である有機過酸前駆体を含有しない比較例2は、漂白力、洗浄力及び殺菌効果に劣ることがわかる。(C)成分である陰イオン界面活性剤及び非イオン界面活性剤を含有しない比較例3や、(D)成分であるヒドロキシ多価カルボン酸及びその塩から選ばれる少なくとも一種を含有しない比較例4は、漂白力及び洗浄力に劣ることがわかる。また、(D)成分の含有量が多すぎる比較例5は、貯蔵安定性に劣ることがわかり、(D)成分の代わりにエチレンジアミン4酢酸・ナトリウム塩を用いた比較例6は、漂白力及び洗浄力に劣ることがわかる。さらに、(E)成分である酵素を含有しない比較例7は洗浄力に劣ることがわかり、(F)成分である炭酸塩を含有しない比較例8は、漂白力、洗浄力及び殺菌効果に劣ることがわかる。
【0043】
【発明の効果】
本発明の粉末漂白洗浄剤組成物は、過酸素化合物と、有機過酸前駆体と、陰イオン界面活性剤及び非イオン界面活性剤を組み合わせた界面活性剤と、ヒドロキシ多価カルボン酸及びその塩から選ばれる少なくとも一種と、3種類の特定の酵素を組み合わせた酵素と、炭酸塩と、キシレンスルホン酸塩とを組み合わせることにより、漂白力に優れることはもとより、洗浄力と貯蔵安定性に優れ、さらには優れた殺菌効果を発揮するという効果を奏する。したがって、台所、厨房、食品加工工場等で用いるフキン等のように、衛生的であることを求められる布帛の漂白・洗浄・殺菌に好適に用いることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a powdery bleaching detergent composition suitably used for bleaching and washing fabrics. Specifically, it has excellent bleaching power, as well as excellent washing power and storage stability, and also has an excellent sterilizing effect, and it is suitable for bleaching, washing, and sterilizing fabrics such as kitchen hooks. It is related with an agent composition.
[0002]
[Prior art]
Conventionally, chlorine bleach or bleach detergent, or oxygen bleach or bleach detergent is used for bleaching textile products.
Chlorine bleach or bleach detergent with sodium hypochlorite as the main component has high bleaching power even at low temperatures, has a high bactericidal effect, has an irritating odor, and is used for textiles of colored and patterned products. There are problems such as the fact that it cannot be used and there is a risk of misuse due to the combined use with acidic substances, and it tends not to be used preferably as a cleaning composition.
On the other hand, oxygen-based bleaching agents or bleach-cleaning agents are well known that contain sodium percarbonate or sodium perborate as a main component, which releases hydrogen peroxide when made into an aqueous solution. A bleaching agent or a bleaching detergent has a problem that its bleaching power is weaker than that of a chlorine-based bleaching agent or a bleaching detergent. Therefore, by using a bleach activator such as an organic peracid precursor that reacts with hydrogen peroxide to produce an organic peracid with higher bleaching power in combination with sodium percarbonate or sodium perborate, Attempts have been made to increase the bleaching power of bleaches or bleach detergents.
[0003]
Examples of such a bleaching agent or stray detergent using a peroxide and a bleach activator in combination include, for example, percarbonate or perborate, tetraacetylethylenediamine or glucose pentaacetate, an anionic surfactant and A bleach composition containing a nonionic surfactant and a specific high molecular weight polymer and having excellent detergency against hard dirt such as kitchen is disclosed (for example, see Patent Document 1). A bleaching composition containing a product, a bleach activator, a specific enzyme, and a specific high molecular weight polymer, which has improved discoloration and discoloration of a colored or patterned textile product is disclosed (for example, Patent Document 2). Moreover, the bleaching detergent composition excellent in the bleaching power containing the peroxygen compound, the organic peracid precursor, the specific chelating agent, and the alkaline agent is disclosed (for example, refer patent document 3).
[0004]
By the way, in kitchens, kitchens, food processing factories, and the like, cloths such as hooks are used for things that touch food such as cooking utensils and tableware, and may touch food directly. Therefore, from the viewpoint of hygiene, these hooks and the like are sterilized and always required to be hygienic.
As a detergent having a bactericidal effect using a peroxide and a bleach activator in combination, for example, an inorganic peroxide, tetraacetylethylenediamine, and a nonionic surfactant containing a detergency, a bactericidal effect, A cleaning composition for drainage pipes having an excellent fungal effect is disclosed (for example, see Patent Document 4), and contains an inorganic peroxide, tetraacetylethylenediamine, and a protease, and further contains an inorganic peroxide and a tetra A sterilizing detergent composition having a sterilization effect and a detergency of medical instruments and equipment having a weight ratio of acetylethylenediamine of 10/1 to 2/1 is disclosed (for example, see Patent Document 5).
[0005]
However, the cleaning compositions described in Patent Documents 4 and 5 are intended for cleaning hard surfaces, and are cleaning compositions that perform bleaching, cleaning, and sterilization on fabrics that are textile products. Absent. Moreover, although the said patent document 1-patent document 3 is disclosing the composition which has the outstanding cleaning power and bleaching power, it is not considered at all about the bactericidal effect.
Since it is not efficient to sterilize the fukin and the like after washing with a normal detergent, it is desired to develop a bleaching detergent that can be sterilized simultaneously with washing and bleaching.
[0006]
[Patent Document 1]
JP-A-4-331299
[Patent Document 2]
JP-A-5-320696
[Patent Document 3]
JP 11-217590 A
[Patent Document 4]
JP-A-3-131700
[Patent Document 5]
JP 2001-72997 A
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, as well as being excellent in bleaching power, is excellent in cleaning power and storage stability, and further has an excellent bactericidal effect, and is particularly required to be sanitary. An object of the present invention is to provide a powder bleach detergent composition that is suitably used for bleaching, washing, and sterilization of fabric such as kitchen hookins.
[0008]
[Means for Solving the Problems]
  As a result of intensive studies to achieve the above object, the present inventors have found that a peroxygen compound, an organic peracid precursor, a surfactant that is a combination of an anionic surfactant and a nonionic surfactant, , At least one selected from hydroxypolycarboxylic acids and salts thereof, an enzyme comprising a specific combination, and carbonateXylene sulfonate andIn addition to having excellent bleaching power, it has excellent cleaning power and storage stability, and also has excellent sterilizing effect and is particularly required to be sanitary. The present inventors have found that a powder bleach detergent composition that can be suitably used for washing and sterilization can be obtained. The present invention has been completed based on such findings.
  That is, the present invention provides the following powder bleach detergent composition.
[0009]
1. (A) 15 to 75% by mass of peroxygen compound, (B) 1 to 5% by mass of organic peracid precursor, (C) surfactant 0.1 which is a combination of an anionic surfactant and a nonionic surfactant -20% by mass, (D) 0.1-10% by mass of at least one selected from hydroxy polyvalent carboxylic acids and salts thereof, (E) 0.05-5% by mass of an enzyme which is a combination of amylase, protease and lipase,(F) CarbonateAnd (G) 0.1 to 10% by mass of xylene sulfonateAnd a mass ratio of the component (A) to the component (B) is (A) / (B) = 30/1 to 15/1.
2. Further, (H) 0.1 to 5% by mass of at least one polymer selected from polyacrylic acid, a copolymer of acrylic acid and maleic acid, poly-α-hydroxyacrylic acid and salts thereof is contained. Above1Powder bleach detergent composition.
3. (A) The peroxygen compound as component 1 is sodium percarbonate.Or 2Powder bleach detergent composition.
4. The organic peracid precursor of component (B) is tetraacetylethylenediamine,3Any of the powder bleach detergent compositions.
5. The above 1 to 3 which are used for bleach washing of a fabric4Any of the powder bleach detergent compositions.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
  The powder bleach detergent composition of the present invention (hereinafter sometimes referred to as “the present composition”) has (A) 15 to 75% by mass of a peroxygen compound and (B) an organic peracid precursor 1 as active ingredients. ~ 5% by mass, (C) a surfactant that is a combination of an anionic surfactant and a nonionic surfactant, 0.1 to 20% by mass, (D) at least one selected from hydroxy polyvalent carboxylic acids and salts thereof 0.1 to 10% by mass, (E) 0.05 to 5% by mass of enzyme which is a combination of amylase, protease and lipase,(F) CarbonateAnd (G) 0.1 to 10% by mass of xylene sulfonateIt is a composition containing this.
[0011]
Examples of the peroxygen compound (A) used in the present invention include percarbonate such as sodium percarbonate and potassium percarbonate, perborate such as sodium perborate, and perphthalate such as sodium perphthalate. Examples include acid salts, superphosphates, sodium sulfate, sodium silicate, etc. added with hydrogen peroxide. These may be used alone or in combination of two or more. Of these, percarbonate is preferable from the viewpoint of safety and environmental protection, and sodium percarbonate is particularly preferable. Of these peroxygen compounds, those having an effective oxygen content of 11% if sodium percarbonate and those containing 15% if sodium perborate are usually used.
[0012]
The compounding amount of the peroxygen compound as the component (A) is in the range of 15 to 75% by mass in the powder bleach detergent composition of the present invention. If the blending amount is less than 15% by mass, the bleaching effect is not sufficiently exhibited. Even if the blending amount exceeds 75% by mass, the improvement of the bleaching effect is not recognized, but it is rather disadvantageous economically. The amount of ingredients will be limited. From the viewpoints of economy and balance with other performances, the amount of the peroxygen compound is preferably in the range of 30 to 60% by mass in the present composition, and further in the range of 40 to 60% by mass in terms of the bleaching effect. Is preferred.
[0013]
The organic peracid precursor of the component (B) used in the present invention reacts with hydrogen peroxide to produce an organic peracid having a higher bleaching power. It is blended for the purpose of improving the bactericidal effect. Examples of the organic peracid precursor include glucose pentaacetate and tetraacetylethylenediamine. Tetraacetylethylenediamine is preferable because it can be easily obtained.
The compounding quantity of the organic peracid precursor of this (B) component is the range of 1-5 mass% in this composition. If the blending amount is less than 1% by mass, the blending effect of the organic peracid precursor is not sufficiently exhibited, and even if blending exceeds 5% by mass, the further improvement of the blending effect is not recognized. Rather, it is economically disadvantageous. From the standpoint of bleaching power, detergency and bactericidal effect, the amount of the organic peracid precursor is preferably in the range of 2 to 5% by mass in the present composition, and more preferably in the range of 2 to 4% by mass from the viewpoint of economy. Is preferred.
[0014]
Moreover, in this composition, mass ratio of the said (A) component and (B) component is defined in the range of (A) / (B) = 30/1-15/1. If this ratio exceeds 30/1, the fabric tends to be damaged. On the other hand, if this ratio is less than 15/1, the bleaching power, detergency and sterilizing effect are not sufficiently exhibited. From the viewpoint of bleaching power, detergency and bactericidal effect, the mass ratio of the above component (A) and component (B) is preferably 25/1 to 15/1, and more preferably 20/1 to 15/1 from the viewpoint of economy. preferable.
[0015]
  The surfactant of component (C) used in the present invention is an anionic surfactant or a nonionic surfactant.A combination ofIt is blended for the purpose of improving detergency.
  Anionic surfactants include fatty acid salts, alkyl ethers or alkenyl ether sulfates, alkyl or alkenyl sulfates, olefin sulfonates, alkane sulfonates, alkyl ethers or alkenyl ether carboxylates, α-sulfo fatty acid salts or The ester etc. can be mentioned.
  Examples of these counter ions include sodium salts, potassium salts, amine salts, and ammonium salts. Among them, sodium salts and ammonium salts are preferable.
  As the anionic surfactant, fatty acid salts, alkylbenzene sulfonates, alkane sulfonates, alkyl sulfates, alkyl ether sulfates and α-olefin sulfonates are preferable from the viewpoint of detergency, and more economical. From the viewpoint, fatty acid sodium, sodium alkylbenzene sulfonate, sodium alkane sulfonate, sodium alkyl sulfate and sodium alkyl ether sulfate are preferable.
[0016]
  Nonionic surfactants include polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene alkyl phenyl ethers, polyoxyalkylene alkenyl phenyl ethers, higher fatty acid alkanolamides or alkylene oxide adducts thereof, glycerin fatty acid esters, sucrose Examples include fatty acid esters, alkyl polyglucosides, and amine oxides. Of these, polyoxyalkylene alkyl ethers and polyoxyalkylene alkyl phenyl ethers are preferable from the viewpoint of detergency and permeability to the object to be cleaned, and polyoxyalkylene alkyl ethers are also preferable because they have little impact on the environment. Is preferred.
  (C) As component,the aboveBy using an anionic surfactant and a nonionic surfactant in combination, there is an effect of synergistically contributing to an improvement in detergency. Also,BookIt also contributes to improving the stability of enzymes in the composition, particularly proteases.
[0017]
The compounding quantity of this (C) component is the range of 0.1-20 mass% in this composition. If the blending amount is less than 0.1% by mass, the detergency is inferior. If the blending amount exceeds 20% by mass, the detergency is not improved, and it is economically disadvantageous. From the viewpoint of detergency, the blending amount of the surfactant is preferably in the range of 2 to 20% by mass in the present composition, and more preferably in the range of 2 to 15% by mass from the viewpoint of economy.
[0018]
(D) component used for this invention is at least 1 type chosen from hydroxy polyhydric carboxylic acid and its salt. This component (D) is water-soluble and exhibits chelating ability, contributes to improvement of bleaching power and cleaning power, and particularly contributes to improvement of cleaning power against blood stains.
Examples of the hydroxy polyvalent carboxylic acid and its salt include citric acid, malic acid, gluconic acid, tartaric acid, glucholic acid, lactic acid, and salts thereof. These may be used in an acid form, or a part or all of them may be in a salt form. Examples of the salt include sodium salt, potassium salt, amine salt and ammonium salt. Among them, sodium salt and ammonium salt are preferable.
As the component (D), citric acid, gluconic acid and salts thereof are preferable from the viewpoint of detergency and economy, and sodium citrate is preferable from the viewpoint of storage stability of the composition.
[0019]
The compounding quantity of this (D) component is the range of 0.1-10 mass% in this composition. If the blending amount is less than 0.1% by mass, the bleaching power and detergency are inferior. If the blending amount exceeds 10% by mass, no improvement in bleaching power and detergency is observed, and the storage stability of the composition is stable. Sexuality decreases. From the viewpoint of bleaching power and detergency, the blending amount of component (D) is preferably in the range of 1 to 10% by mass in the present composition, and further in the range of 1 to 5% by mass from the viewpoint of storage stability and economy. Is preferred.
[0020]
  As the enzyme of the component (E) used in the present invention,,BookSince the aqueous solution of the composition becomes alkaline, those that do not deactivate even if alkaline are preferred,In particularAmylase, protease, and lipase are preferable from the viewpoint of degrading proteins, starch, and fats and oils attached to a cloth such as fukin, and contributing to improvement of detergency.And in the present inventionFrom the point that it contributes to the improvement of detergency against complex stains such as starch stains, protein stains, and oil stains,the aboveCombining amylase, protease and lipaseThe
  Here, examples of amylase include Termamyl (manufactured by Novozyme), Duramil (manufactured by Novozyme), maxamil (manufactured by Genencor), and examples of protease include savinase (manufactured by Novozyme), esperase (manufactured by Novozyme), Evalase (Novozyme), Durazyme (Novozyme), Maxacal (Genencor),For example, lipolase (manufactured by Novozyme) and the like are easily available as commercial products.
[0021]
By including the enzyme of the above component (E), the bleaching detergent composition obtained exhibits a good removal effect on starch stains, protein stains, oily stains, and the like. The compounding quantity of this enzyme is the range of 0.05-5 mass% in this composition. If the blending amount is 0.05% by mass or less, the effect of blending the enzyme is not sufficiently exerted, and even if blending exceeds 5% by mass, the improvement of the effect is not recognized so much for the blending amount, Rather it becomes economically disadvantageous. From the viewpoints of the enzyme blending effect and economy, the amount of the enzyme blended is preferably in the range of 0.1 to 5% by mass, and more preferably in the range of 0.1 to 2% by mass from the viewpoint of economy.
[0022]
Examples of the carbonate of component (F) used in the present invention include carbonates, bicarbonates, and sesquicarbonates, and these may be used alone or in combination of two or more. Examples of the salt include a sodium salt, a potassium salt, an amine salt, and an ammonium salt, and a potassium salt and a sodium salt are preferable from the viewpoint of detergency, and a sodium salt is preferable from the viewpoint of economy.
Component (F) is added to improve bleaching power, detergency, and bactericidal effect, and its blending amount is an amount required to make the entire composition 100% by mass, and is generally 3% in the present composition. -80 mass%. From the viewpoint of balance with other performance, the blending amount of the carbonate is preferably in the range of 5 to 70% by mass in the present composition. Further, from the viewpoint of detergency and economy due to balance with other components, 10%. A range of ˜60 mass% is preferred.
[0023]
  In addition to the essential components (A) to (F) described above, the composition of the present invention includes xylene sulfonic acid as a component (G).SaltFrom the point of blending solubilize dirt and improve the detergency due to a synergistic effect with the surfactant of component (C)is necessary. Examples of the salt include sodium salt and potassium salt, but sodium salt is preferred.TheFrom the viewpoints of economy and storage stability, sodium xylene sulfonate is preferred.
[0024]
  Xylene aboveThe blending amount of the sulfonate is in the range of 0.1 to 10% by mass in the present composition.Is. This amount is 0.1% by massLess thanHowever, there is a possibility that the effect of improving the detergency may not be sufficiently exerted, and even if it exceeds 10% by mass, the improvement of the effect is not recognized for the amount of the compound, but it is economically disadvantageous. become. From economic point of viewXyleneThe blending amount of the sulfonate is more preferably in the range of 0.5 to 5% by mass in the present composition, and further preferably in the range of 2 to 5% by mass from the viewpoint of detergency.
[0025]
The composition of the present invention further includes at least one polymer polymer selected from polyacrylic acid, a copolymer of acrylic acid and maleic acid, poly-α-hydroxyacrylic acid, and salts thereof as component (H). A coalescence can be blended. Since this high molecular weight polymer is water-soluble and exhibits chelating ability, when this high molecular weight polymer is blended, the detergency is further improved, and the effect of preventing contamination by dispersing dirt in the cleaning solution. Contribute. These high molecular polymers are not cross-linked. The polymer may be in the acid form, or part or all may be in the form of a salt. Examples of the salt include sodium salt, potassium salt, amine salt, and ammonium salt. Among them, sodium salt and ammonium salt are preferable from the viewpoint of solubility in water, and sodium salt is more preferable from the viewpoint of economy. preferable.
As the component (H), sodium poly-α-hydroxyacrylate is preferable from the viewpoint of detergency and anti-recontamination effect.
[0026]
The average molecular weight of the (H) component polyacrylic acid and / or its salt is preferably in the range of 1,000 to 100,000 from the viewpoint of the stability of the present composition, and further from the viewpoint of improving detergency. The range of 10,000 to 10,000 is more preferable.
The average molecular weight of the (H) component acrylic acid and maleic acid copolymer and / or salt thereof is preferably in the range of 3,000 to 100,000 from the viewpoint of the stability of the present composition. From the point of improvement of 50,000, the range of 50,000-80,000 is more preferable.
[0027]
The average molecular weight of the component (H), poly-α-hydroxyacrylic acid and / or its salt, is preferably in the range of 1,000 to 1,000,000. The range of 2,000 to 800,000 is more preferable, and the range of 2,000 to 200,000 is more preferable from the viewpoint of bleaching power.
[0028]
The amount of component (H) is preferably in the range of 0.1 to 5% by mass in the present composition. If the blending amount is less than 0.1% by mass, the effect of improving the detergency and prevention of recontamination may be poor, and even if the amount exceeds 5% by mass, the effect of improving the detergency and prevention of recontamination is not achieved. It becomes saturated and rather economically disadvantageous. From the viewpoint of detergency and economy, the amount of the component (H) is preferably in the range of 0.5 to 3% by mass in the present composition.
[0029]
The powder bleach detergent composition of the present invention includes, in addition to the above-mentioned components, a surfactant other than the anionic surfactant and the nonionic surfactant, as necessary, as long as the object of the present invention is not impaired. , Sulfates, pigments, fragrances, bactericides, preservatives, and the like can be blended.
The composition of the present invention is used as an aqueous solution diluted in tap water at 5 to 60 ° C. for bleach washing of fabrics. If the water temperature is less than 5 ° C., the bleaching effect and detergency are reduced. If the water temperature exceeds 60 ° C., the workability of bleaching washing is poor, and the worker may be burned.
[0030]
The composition of the present invention is used as an aqueous solution having a concentration of 0.08 to 2% by mass depending on the amount of pigment stains and organic stains adhering to the object to be cleaned. The effective oxygen concentration at this time is 1.6 to 11%. It is preferable that In addition, the pH of the aqueous solution at this time is preferably weakly alkaline or alkaline, and particularly preferably about 8 to 11 from the stability of effective oxygen.
As a method of bleaching, washing, and sterilizing a fabric such as a hook using this composition,
1. A method of rinsing with water after preparing an aqueous solution in a washing bowl and soaking the object to be washed for 15 minutes to 2 hours,
2. A method of washing with an electric washing machine using the composition;
3. A method in which an aqueous solution of the composition is prepared in a washing basket and the object to be cleaned is soaked and then washed in an electric washing machine using the composition
Etc. If there is a large amount of pigment stain or organic stain adhering to the object to be cleaned, immerse the object in an aqueous solution obtained by diluting the composition with lukewarm water at 30 to 50 ° C. and then wash it in an electric washing machine. The method is preferred.
[0031]
【Example】
Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples for the powder bleach detergent composition of the present invention. The present invention is not limited to these.
[0032]
  Example 115Reference examples 19And Comparative Examples 1-8
  Powder bleach detergent compositions shown in Tables 1 to 4 were prepared and subjected to various tests. In addition, the numerical value of each component in a table | surface is content (mass%) of each component. And the sum of component (A)-(H) and an arbitrary component is 100 mass%.
  And about each obtained powder bleach detergent composition, about each test item of bleaching power, detergency, storage stability, and bactericidal effect, it evaluated by the following test methods and criteria, and the result is shown in Table 1 below. It shows together with ~ 4.
[0033]
(1) Bleaching power test
[Production of contaminated cloth]
20 g of powdered tea was added to 1000 ml of tap water, boiled for 1 hour, filtered through gauze, cooled to room temperature, and a green tea solution was obtained. On the other hand, a saturated aqueous solution of calcium hydroxide was prepared and used as a fixing solution. A cotton broad # 60 white cloth was dipped in a green tea solution for 5 minutes, then dipped in a fixing solution for 5 minutes, washed with water and dried. This process was repeated three times to produce a green tea contaminated cloth.
[Test method]
The green tea-contaminated cloth (8 cm × 8 cm) prepared as described above is placed in 500 ml of each composition solution having a water temperature of 50 ° C. adjusted to 0.1% by mass using tap water, stirred for 10 minutes with a stirrer, and then taken out. The mixture was rinsed with tap water in the same manner for 5 minutes and dried naturally. The whiteness was measured with a color difference meter, and the bleaching rate was determined by the following formula and evaluated according to the following criteria.
Bleaching rate (%) = [(whiteness after bleaching−whiteness before bleaching) / (whiteness before white contamination−whiteness before bleaching)] × 100
[Criteria]
A: Bleaching rate of 80% or more
○: Bleaching rate 65% or more and less than 80%
Δ: Bleaching rate 50% or more and less than 65%
X: Bleaching rate less than 50%
[0034]
(2) Detergency test
[Preparation of contaminated cloth]
The raw fish (carp) was crushed, spread thinly and evenly on a cotton cloth (8 cm × 8 cm), and naturally dried at room temperature to prepare a raw fish-contaminated cloth.
[Test method]
The raw fish-contaminated cloth (8 cm × 8 cm) prepared as described above was placed in 500 ml of each composition solution at a water temperature of 5 ° C. prepared to 0.1% by mass using tap water, stirred for 10 minutes with a stirrer, and then taken out. The mixture was rinsed with tap water in the same manner for 5 minutes and dried naturally. The whiteness was measured with a color difference meter, and the cleaning rate was determined by the following formula and evaluated according to the following criteria.
Washing rate (%) = [(whiteness after washing−whiteness before washing) / (whiteness of white cloth before contamination−whiteness before washing)] × 100
[Criteria]
A: Cleaning rate of 70% or more
○: Cleaning rate of 60% or more and less than 70%
Δ: Cleaning rate of 50% or more and less than 60%
X: Cleaning rate less than 50%
[0035]
(3) Storage stability test
[Test method]
50 g of each composition was put in a glass bottle having an internal volume of 100 ml, stored at 40 ° C. for 3 months, and the effective oxygen concentration before and after storage was measured. The stability of effective oxygen was calculated using the following equation and evaluated according to the following criteria.
Effective oxygen stability (%) = [(effective oxygen concentration after 3 months storage) / (effective oxygen concentration before storage)] × 100
[Criteria]
A: Effective oxygen stability is 90% or more
○: Stability of effective oxygen 70% or more and less than 90%
Δ: Stability of active oxygen 50% or more and less than 70%
X: Stability of available oxygen is less than 50%
[0036]
(4) Bactericidal effect test
[Test method]
Staphylococcus aureus cultured for 24 hours in 100 ml of 0.1% by weight aqueous solution of each composition prepared using sterile water (Staphylococcus aureus ATCC 6538 strain) Or E. coli (E. E. coli ATCC 11229 strain) Was added and contacted at 40 ° C. for 10 minutes, 20 minutes and 30 minutes. 100 microliters of the diluted solution contacted for a predetermined time was collected and inoculated into 10 ml of SCDLP medium. From the presence or absence of turbidity of the medium after culturing at 37 ° C. for 24 hours, it was visually evaluated according to the following criteria.
[Criteria]
A: Both S. aureus and E. coli were sterilized within 10 minutes.
○: Both S. aureus and Escherichia coli could be sterilized within 10 minutes exceeding 10 minutes.
Δ: Both S. aureus and E. coli were sterilized within 20 minutes exceeding 20 minutes.
X: It was not able to sterilize within 30 minutes.
[0037]
In addition, the detail of the component shown to the following Tables 1-4 is as follows.
* Tetraacetylethylenediamine: Tetraacetylethylenediamine (manufactured by Clariant Japan, Inc., trade name: PERACTIVE AN)
* Anionic surfactant 1: Fatty acid sodium (Lion Corporation / trade name: Powder Soap)
* Anionic surfactant 2: Sodium lauryl sulfate (trade name: Emal 10 Powder manufactured by Kao)
* Nonionic surfactant 1: polyoxyethylene alkyl ether; C10 (narotarp) branched alcohol ethylene oxide 7 mol adduct (manufactured by Sanyo Kasei Kogyo Co., Ltd./trade name: Naroacty ID70)
* Nonionic surfactant 2: polyoxyalkylene alkyl ether; C16-18 linear alcohol ethylene oxide 25 mol adduct (BASF / trade name: Lutensol AT25)
* Amylase: Amylase (manufactured by Novozyme / Brand name: Duramyl 60T)
* Protease: Protease (manufactured by Novozyme / Brand name: Evelase 8.0T)
* Lipase: Lipase (manufactured by Novozyme / Brand name: Lipolase 100T)
* PA: sodium polyacrylate; weight average molecular weight 8,000 (manufactured by BASF / trade name: Sokalan PA30 CLG)
* MAPA: sodium salt of acrylic acid / maleic acid copolymer (partially neutralized product); weight average molecular weight 70,000 (manufactured by BASF / trade name: Sokalan CP45 G)
* PHAS: sodium poly-α-hydroxyacrylate; viscosity average molecular weight 12,000 (manufactured by Nippon Peroxide Co., Ltd./trade name: Pale Plaque 1200)
[0038]
[Table 1]
Figure 0004302975
[0039]
[Table 2]
Figure 0004302975
[0040]
[Table 3]
Figure 0004302975
[0041]
[Table 4]
Figure 0004302975
[0042]
  Examples 1 to 5 which are powder bleach detergent compositions of the present invention15It can be seen that, in any test items of bleaching power, detergency, storage stability, and bactericidal effect, good performance is exhibited. In the bleaching power test, when the temperature of the aqueous solution was 5 ° C., good results could be obtained as in the case of 50 ° C.
  On the other hand, Comparative Example 1 containing no peroxygen compound as component (A) is found to be inferior in bleaching power, detergency and bactericidal effect, and Comparative Example 2 containing no organic peracid precursor as component (B) Is inferior in bleaching power, detergency and bactericidal effect. Comparative Example 3 not containing an anionic surfactant and a nonionic surfactant as component (C), or Comparative Example 4 not containing at least one kind selected from a hydroxypolycarboxylic acid and a salt thereof as component (D) Is inferior in bleaching power and cleaning power. Moreover, it turns out that the comparative example 5 with too much content of (D) component is inferior in storage stability, and the comparative example 6 which used ethylenediaminetetraacetic acid and sodium salt instead of (D) component is bleaching power and It turns out that it is inferior to a cleaning power. Furthermore, it turns out that the comparative example 7 which does not contain the enzyme which is (E) component is inferior in detergency, and the comparative example 8 which does not contain the carbonate which is (F) component is inferior in bleaching power, detergency, and bactericidal effect. I understand that.
[0043]
【The invention's effect】
  The powder bleach detergent composition of the present invention comprises a peroxygen compound, an organic peracid precursor, a surfactant combining an anionic surfactant and a nonionic surfactant, a hydroxy polyvalent carboxylic acid and a salt thereof. At least one selected from, an enzyme combining three specific enzymes, and carbonateXylene sulfonate andBy combining the above, not only is it excellent in bleaching power, it has excellent detergency and storage stability, and further exhibits an excellent sterilizing effect. Therefore, it can be suitably used for bleaching, washing, and sterilization of fabrics that are required to be hygienic, such as hooks used in kitchens, kitchens, food processing plants, and the like.

Claims (5)

(A)過酸素化合物15〜75質量%、(B)有機過酸前駆体1〜5質量%、(C)陰イオン界面活性剤及び非イオン界面活性剤の組み合わせである界面活性剤0.1〜20質量%、(D)ヒドロキシ多価カルボン酸及びその塩から選ばれる少なくとも一種0.1〜10質量%、(E)アミラーゼ、プロテアーゼ及びリパーゼの組み合わせである酵素0.05〜5質量%(F)炭酸塩及び(G)キシレンスルホン酸塩0.1〜10質量%を含有し、且つ(A)成分と(B)成分の質量比が(A)/(B)=30/1〜15/1であることを特徴とする粉末漂白洗浄剤組成物。(A) 15 to 75% by mass of peroxygen compound, (B) 1 to 5% by mass of organic peracid precursor, (C) surfactant 0.1 which is a combination of an anionic surfactant and a nonionic surfactant -20% by mass, (D) 0.1-10% by mass of at least one selected from hydroxy polyvalent carboxylic acids and salts thereof, (E) 0.05-5% by mass of enzyme which is a combination of amylase, protease and lipase , (F) Carbonate and (G) 0.1-10 mass% of xylene sulfonate , and the mass ratio of (A) component and (B) component is (A) / (B) = 30/1 A powder bleach detergent composition characterized by being 15/1. さらに、(H)ポリアクリル酸、アクリル酸とマレイン酸との共重合体、ポリ−α−ヒドロキシアクリル酸及びこれらの塩から選ばれる少なくとも一種の高分子重合体0.1〜5質量%を含有してなる請求項に記載の粉末漂白洗浄剤組成物。Further, (H) 0.1 to 5% by mass of at least one polymer selected from polyacrylic acid, a copolymer of acrylic acid and maleic acid, poly-α-hydroxyacrylic acid and salts thereof is contained. The powder bleach detergent composition of Claim 1 formed. (A)成分の過酸素化合物が、過炭酸ナトリウムである請求項1または2に記載の粉末漂白洗浄剤組成物。The powder bleach detergent composition according to claim 1 or 2 , wherein the peroxygen compound of component (A) is sodium percarbonate. (B)成分の有機過酸前駆体が、テトラアセチルエチレンジアミンである請求項1〜のいずれかに記載の粉末漂白洗浄剤組成物。(B) The organic peracid precursor of a component is tetraacetylethylenediamine, The powder bleach detergent composition in any one of Claims 1-3 . 布帛の漂白洗浄に供されるものである請求項1〜のいずれかに記載の粉末漂白洗浄剤組成物。The powder bleach detergent composition according to any one of claims 1 to 4 , which is used for bleach washing of a fabric.
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