JP2004269470A - Composition for antibacterial deodorizing treatment and antibacterial deodorizing spray using the same - Google Patents
Composition for antibacterial deodorizing treatment and antibacterial deodorizing spray using the same Download PDFInfo
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- JP2004269470A JP2004269470A JP2003066072A JP2003066072A JP2004269470A JP 2004269470 A JP2004269470 A JP 2004269470A JP 2003066072 A JP2003066072 A JP 2003066072A JP 2003066072 A JP2003066072 A JP 2003066072A JP 2004269470 A JP2004269470 A JP 2004269470A
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Abstract
Description
【０００１】
【発明の属する技術分野】
本発明は抗菌消臭処理用組成物およびそれを用いた抗菌消臭処理スプレーに関するものである。さらに詳しく言えば、本発明は、施工者が既設の基材表面に簡単に、かつ、手軽に施工でき、特に施工時の周囲空間を瞬時に消臭する消臭性能と、施工後に基材から徐々に発生する悪臭を抑制する防臭性能を併せ持つ抗菌消臭処理用組成物およびそれを用いた抗菌消臭処理スプレーに関するものである。
【０００２】
【従来の技術】
近年、国民の生活水準の向上に伴い、健康および衛生に関する意識も高まっており、衣食住の各分野において抗菌（防カビも含む、以下同じ）および、防臭加工を施した製品や技術が実用化されている。特に、建材、日用品などの分野において、光触媒の強い酸化力を利用した抗菌・脱臭処理材料が開発されている。
【０００３】
光触媒を利用した抗菌・脱臭処理材料については、従来から多数提案されている。例えば、繊維布帛を抗菌防臭処理するための処理剤として、貴金属を担持した光触媒を含有した構成とし、該処理剤を水または有機溶剤に分散したスラリーと繊維布帛を接触または浸漬させることで抗菌防臭処理する方法が提案されている（例えば、特許文献１参照）。また、サブミクロンサイズの酸化チタン粒子に、ナノメートルオーダーの金属銀および金属銅を分散付着させてなる抗菌・脱臭材料を構成し、これを基材に練り込んだり、スプレーとして基材表面に噴霧することで基材を抗菌防臭処理する方法が提案されている（例えば、特許文献２参照）。
【０００４】
【特許文献１】
特開平９−２９６３６４号公報
【特許文献２】
特開平１１−３４９４２３号公報
【０００５】
しかし、これらの方法では、抗菌防臭処理のために光触媒と抗菌金属が利用されているだけなので、処理後の基材は抗菌性能を示すものの、一般の無機系抗菌剤と同様に抗菌速度が遅いため、既に基材表面や周囲空間に存在する菌（カビを含む、以下同じ）を除去することは困難であった。さらに、防臭性能に関しては、光触媒の分解効果により、基材および周囲空間に存在する臭いを徐々に分解することは可能であるものの、短時間に周囲空間の臭いを除去することは不可能であった。
【０００６】
【発明が解決しようとする課題】
本発明では、施工者が既設の基材表面に簡単に、かつ、手軽に施工でき、特に施工時の周囲空間を瞬時に消臭する消臭性能と、施工後に基材から徐々に発生する悪臭を抑制する防臭性能を併せ持つ抗菌消臭処理用組成物およびそれを用いた抗菌消臭処理スプレーを提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明は、上記課題を解決するために（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤と（Ｂ）有機系抗菌剤と（Ｃ）天然抽出物を含む消臭成分とを含有してなる抗菌消臭処理用組成物を提供する。
【０００８】
本発明に用いられる無機系抗菌剤は、光の照射により強い酸化性能を示し、抗菌性能や脱臭性能を示す光触媒と暗所でも抗菌性能を示す抗菌金属の化合物の組み合わせによりなるものである。
【０００９】
このように、光の照射にかかわらず、継続的に抗菌・防臭性能を示す（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤に、即効性の抗菌性を示す（Ｂ）有機系抗菌剤と、即効性の消臭性能を示す（Ｃ）天然抽出物を含む消臭成分を添加することで、施工時に周囲空間を瞬時に消臭する消臭性能と、施工後に基材から徐々に発生する悪臭を抑制する防臭性能を併せ持つことが可能になる。本発明はこの知見に基づき完成されるに至ったものである。
【００１０】
以下に、本発明の抗菌消臭処理用組成物およびそれを用いた抗菌消臭処理スプレーについて詳細に説明する。すなわち本発明の抗菌消臭処理用組成物は、
下記の（Ａ）、（Ｂ）および（Ｃ）成分
（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤
（Ｂ）有機系抗菌剤
（Ｃ）天然抽出物を含む消臭成分
を含有することを特徴とする。
【００１１】
本発明の無機系抗菌剤に用いられる光触媒とは、光の照射により電子−正孔対が生成し、その電子や正孔が直接に、または、スーパーオキサイドイオン（Ｏ２ −）や水酸ラジカル（・ＯＨ）などの活性酸素を介して表面の有機物質や水、金属イオンに働きかけて、有機物質の酸化分解、水の光分解、金属イオンの還元担持などの性質を持つものである。この機能の応用として微生物やカビなどを殺す抗菌機能、周囲の悪臭を分解する脱臭機能、水を光の照射だけで水素ガスと酸素ガスに分解する水の光分解機能などが実現できる。
【００１２】
また、本発明の無機系抗菌剤に用いられる抗菌金属の化合物とは、主にＡｇ、Ｃｕ、Ｚｎなどの抗菌金属単体、および、抗菌金属の酸化物などを示し、光が当たらない場合でも、その働きにより無機系抗菌剤が抗菌性能を示すように添加するものである。さらに、抗菌金属の化合物を光触媒と組み合わせることで、光触媒の分解活性も向上する効果を持つ。
【００１３】
本発明に用いられる（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤は、太陽光などの紫外線を含む光が当たると極めて強い酸化性能を示し、強い抗菌性能や脱臭性能を示す光触媒に抗菌金属を組み合わせることで、光が当たらない場合でも抗菌金属の働きにより、抗菌性能を示すことを可能とし、光が当たる場合も、当たらない場合も、継続的に抗菌・防臭性能を示すことを目的に使用される。
【００１４】
本発明に用いられる（Ｂ）有機系抗菌剤としては、ベンズイミダゾール系、チアゾール系、イソチアゾール系、イソチアゾロン系、ベンズイソチアゾロン系、ジンクピリチオン系、有機ハロゲン系、有機窒素系、含窒素硫黄系、第四級アンモニウム塩系、キトサンおよびキトサンをキチナーゼ処理して得られた分解物などを好適に使用できる。これらの有機系抗菌剤の添加量は、濃度に換算して０．０１〜５重量％が好ましく、より好ましくは０．０２〜２重量％の範囲である。
これらの有機系抗菌剤を添加することで、（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤の遅効的な抗菌効果を補完し、即効的な抗菌性能を付与することを目的に使用される。
【００１５】
本発明に用いられる（Ｃ）天然抽出物を含む消臭成分としては、茶、笹、ヨモギ、シソ、ローズマリー等の抽出成分を好適に使用できる。
これらの天然抽出物を含む消臭成分を添加することで、（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤の遅効的な防臭効果を補完し、即効的な消臭性能を付与することを目的に使用される。
【００１６】
本発明の好ましい態様においては、（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤を構成する光触媒が、酸化チタンであることを特徴とする。酸化チタンは化学的に安定であり、光照射時の分解活性も強く、水などの溶媒に安定的に分散した材料も得やすいという特徴を持つ。特に、アナターゼ型、または、ブルッカイト型の結晶構造を持つ酸化チタンを使用すると、強い光触媒活性が得られる。
使用する酸化チタンの粒径は、５ｎｍ〜５００ｎｍのものが、好適に使用できる。粒径が５ｎｍに満たない場合は、酸化チタンの結晶性が弱くなるために、光照射によっても電子−正孔の電荷分離が起きにくくなり、強い光触媒活性が得られなくなる。また、粒径が５００ｎｍを越える場合には、スプレーとして使用する場合にトリガーの噴き出し部に詰まりやすくなるため、実用的に使用することが難しい。
【００１７】
本発明の好ましい態様においては、（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤を構成する抗菌金属が、Ａｇ、Ｃｕ、Ｚｎから選ばれる少なくとも一種であることを特徴とする。強い抗菌性を得たい場合にはＡｇを、強い防カビ性を得たい場合にはＣｕを、金属による着色を少なくしたい場合にはＺｎを使用するなど、用途に応じて適宜選択、または、混合して使用できる。
【００１８】
（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤において、光触媒と抗菌金属の化合物粒子の比率は、（抗菌金属の化合物）／（光触媒）が０．５〜５重量％とすることが望ましい。抗菌金属の化合物の量が０．５重量％よりも少ないと光が当たらないときの抗菌性能が十分でない傾向となり、また、抗菌金属の化合物の量が５重量％よりも多いときには、コストが高くなり実用的に使用することが困難となる。
【００１９】
本発明の抗菌消臭処理用組成物を溶媒と一緒にエアゾール容器、または、トリガーノズルのついた容器に封入することで、施工者が既設の基材表面に簡単にかつ手軽に施工できる抗菌消臭処理スプレーを構成することができる。
溶媒としては、本発明による抗菌消臭処理用組成物を安定に分散させる限り限定されないが、例えば、水若しくは有機溶媒またはそれらの混合溶媒がその例として挙げられる。特に水若しくはアルコ−ル又はそれらの混合溶媒等が好適に使用できる。
【００２０】
本発明の抗菌消臭処理スプレーは、自動車内のシート、マット、プラスチック部材、家庭内のカーテン、マット、ソファ、カーペット、衣類などに吹きかけて、それらの基材に抗菌消臭処理を施すことを可能にする。また、臭いが気になる空間に向けてスプレー施すことで、該空間にこもった悪臭を消臭することを可能にする。
本発明の抗菌消臭処理スプレーの用途が、上に挙げた例示に限定されないことはいうまでもない。
【００２１】
【実施例】次に実施例を挙げ、本発明をさらに詳しく説明するが、本発明はこれら実施例に何ら制約されるものではない。
【００２２】
（実施例１）
最初に、イオン交換水８８．８ｇに特級エタノール１０ｇ（和光純薬工業製）を混合し、溶媒を準備した。この溶媒に、酸化チタンと酸化銀を含む無機系抗菌剤０．１ｇ（触媒化成工業製アトミーボールＬ）、１ｇの天然抽出物を含む消臭成分（環境化学製スメラルＬ−１７ＷＰ）、有機系抗菌剤０．１ｇ（三洋化成製Ｇ−５０）を順次添加し、十分に混合することで抗菌消臭処理用組成物を調整した。
【００２３】
（実施例１）
最初に、イオン交換水８８．８ｇにの特級エタノール１０ｇ（和光純薬工業製）を混合し、溶媒を準備する。この溶媒に、光触媒・銀の無機系抗菌剤０．１ｇ（触媒化成工業製アトミーボールＬ）、天然抽出物を含む消臭成分１ｇ（環境化学製スメラルＬ−１７ＷＰ）、有機系抗菌剤０．１ｇ（三洋化成製Ｇ−５０）を順次添加し、十分に混合することで抗菌消臭処理用組成物を調整した。
【００２４】
（比較例１）
実施例１において、有機系抗菌剤を添加せずに調整したものを比較例１とした。
（比較例２）
実施例１において、天然抽出物を含む消臭成分を添加せずに調整したものを比較例２とした。
【００２５】
実施例１、比較例１、２において得られた組成物について、以下の評価試験を行なった。
【００２６】
（浮遊菌に対する即時抗菌性評価）
自動車内の浮遊菌に対する実施例１と比較例１の即効的な抗菌性能を比較するために、初期の浮遊菌を捕集した後、トリガースプレーを用いて各組成物を車内に３回噴霧し、５分間放置後に再度、車内の浮遊菌を捕集した。菌数のばらつきを考慮して、それぞれ３個のサンプルを取り、平均値で評価した。
浮遊菌の捕集は、衛生試験法−空気試験（落下法）に準じて、以下のように行った。細菌検出用として標準寒天培地（ＳＭＡ）［日水製薬製］を自動車内の運転席、助手席、後部席に、それぞれ１枚ずつ置き、フタを開け、５分間放置した。放置後、フタをし、ＳＭＡは３６±１℃で４８時間培養した。培養後、細菌のコロニーの数を計測した。
結果を、表１に示す。
【００２７】
【表１】
表１に示すように、本発明の実施例１の組成物においては、自動車内の浮遊菌数が明確に減少し、即効的な抗菌性能が認められた。
これに対して、比較例１の有機系抗菌剤を含まない組成物では明確な菌数減少が見られず、即効的な抗菌性能はさほど良くないものであった。
【００２９】
（付着菌に対する抗菌性評価）
自動車シート上の付着菌に対する実施例１の組成物の抗菌性能を評価するために、初期の付着菌を捕集した後、トリガースプレーを用いて実施例１の組成物を１つのシートあたり３回噴霧し、１時間放置後、２４時間放置後、さらに、シートへの噴霧を週に２回ずつ１ヶ月間行なった後の付着菌を捕集した。菌数のばらつきを考慮して、１０台の車に対して、それぞれ３個のサンプルを取り、平均値で評価した。
浮遊菌の捕集は、フードスタンプ（ＳＭＡ）一般細菌用標準寒天培地［日水製薬製］を用い、対象のシート上の生菌を採取、フタをして３６±１℃で４８時間培養した。培養後、細菌のコロニーの数を計測した。
結果を、表２に示す。
【００３０】
【表２】
表２に示すように、本発明の実施例１の組成物においては、自動車シート上の付着菌数が明確に浮遊菌数が減少し、強い抗菌性が認められた。
【００３２】
これらのことから、本発明の抗菌消臭処理用組成物を用いて、抗菌消臭処理スプレーを構成することで、目的とする基材、および、周囲空間に対して、簡単に抗菌処理することが可能になる。
【００３３】
（空間にこもった臭いに対する即時消臭性能評価）
菌が増殖した際に発生する酢酸などの悪臭に対して即効的な消臭性能を評価した。
５Ｌのテドラーバッグを２個用意し、１００ｐｐｍの濃度となるように酢酸を投入し、濃度が均一になるように待った後に、それぞれのテドラーバッグに実施例１と比較例２の組成物を４ｍＬずつ投入し、投入後１時間までの酢酸濃度変化を検知管により測定した。
結果を、図１に示す。
【００３４】
図１に示すように、本発明の実施例１の組成物においては、酢酸濃度が１０分以内に１／１０以下に減少し、即効的な消臭性能が認められた。
これに対して、比較例２の天然抽出物を含む消臭成分を含まない組成物では明確な酢酸濃度減少が見られず、即効的な消臭性能は見られなかった。
【００３５】
（菌の増殖に由来する臭い発生に対する防臭性能評価）
菌の増殖により発生する臭いに対する実施例１の組成物の防臭性能を評価するために、以下の評価を行った。２枚の不織布（旭化成製ベンコット）に臭いの発生源となる有機物（豚ひき肉、キャベツ、タマネギを刻んで混合し、絞ったもの）を同量ずつ染みこませ、２個の５Ｌ密閉容器中にそれぞれ静置した。１つの密閉容器中の不織布に対しては、１日に１回、実施例１の組成物をトリガースプレーにて噴霧し、メチルメルカプタンの発生を検知管で測定した。比較のために、もう１つの密閉容器中の不織布に対しては、１日に１回、水をトリガースプレーにて噴霧し、同様にメチルメルカプタンの発生を評価した。
結果を、図２に示す。
【００３６】
図２に示すように、本発明の実施例１の組成物においては、菌の増殖による悪臭の発生が大きく抑えられ、強い防臭性能が認められた。
【００３７】
これらのことから、本発明の抗菌消臭処理用組成物を用いて、抗菌消臭処理スプレーを構成することで、目的とする基材、および、周囲空間に対して、簡単に消臭・防臭処理することが可能になる。
【図面の簡単な説明】
【図１】空間にこもった臭いに対する即時消臭性能評価の結果を示すグラフ。
【図２】菌の増殖に由来する臭いに対する防臭性能評価の結果を示すグラフ。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an antibacterial deodorizing composition and an antibacterial deodorizing spray using the same. More specifically, the present invention allows the installer to easily and easily construct on the existing base material surface, and in particular, has a deodorizing ability to instantly deodorize the surrounding space at the time of construction, and from the base material after construction. The present invention relates to a composition for antibacterial deodorizing treatment having an odor-preventing property for suppressing malodor generated gradually and an antibacterial deodorizing treatment spray using the same.
[0002]
[Prior art]
In recent years, awareness of health and hygiene has been increasing along with the improvement of the standard of living of the people, and products and technologies that have been subjected to antibacterial (including mold prevention, the same applies to the following) and deodorant processing have been put to practical use in various fields of clothing, food and shelter. ing. In particular, antibacterial and deodorizing materials utilizing the strong oxidizing power of photocatalysts have been developed in fields such as building materials and daily necessities.
[0003]
Many antibacterial and deodorizing materials using a photocatalyst have been proposed. For example, as a treatment agent for carrying out an antibacterial and deodorizing treatment on a fiber cloth, a composition containing a photocatalyst carrying a noble metal is used, and the treatment agent is contacted or immersed with a slurry in which water or an organic solvent is dispersed, and the antibacterial and deodorant treatment is performed. A processing method has been proposed (for example, see Patent Document 1). In addition, an antibacterial and deodorizing material composed of nanometer-order metallic silver and metallic copper dispersed and attached to submicron-sized titanium oxide particles is kneaded into the base material and sprayed onto the base material surface as a spray A method of performing an antibacterial and deodorizing treatment on a substrate by doing so has been proposed (for example, see Patent Document 2).
[0004]
[Patent Document 1]
JP-A-9-296364 [Patent Document 2]
JP-A-11-349423
However, in these methods, since the photocatalyst and the antibacterial metal are only used for the antibacterial and deodorizing treatment, the base material after the treatment shows antibacterial performance, but the antibacterial speed is slow like general inorganic antibacterial agents Therefore, it has been difficult to remove bacteria (including mold, the same applies hereinafter) already existing on the surface of the base material and the surrounding space. Further, regarding the deodorant performance, it is possible to gradually decompose the odor existing in the base material and the surrounding space by the decomposition effect of the photocatalyst, but it is impossible to remove the odor in the surrounding space in a short time. Was.
[0006]
[Problems to be solved by the invention]
According to the present invention, the builder can easily and easily perform construction on the existing base material surface, and particularly has a deodorizing performance for instantly deodorizing the surrounding space at the time of construction, and a malodor generated gradually from the base material after construction. It is an object of the present invention to provide an antibacterial deodorizing composition having anti-odor performance and an antibacterial deodorizing spray using the same.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention comprises (A) an inorganic antibacterial agent comprising a compound of a photocatalyst and an antibacterial metal, (B) an organic antibacterial agent, and (C) a deodorant component containing a natural extract. An antibacterial deodorizing composition comprising:
[0008]
The inorganic antibacterial agent used in the present invention is a combination of a photocatalyst exhibiting strong antioxidant performance and deodorizing performance upon irradiation with light and a compound of an antibacterial metal exhibiting antibacterial performance even in a dark place.
[0009]
Thus, regardless of light irradiation, (A) inorganic antibacterial agents comprising a photocatalyst and a compound of antibacterial metal exhibit immediate antibacterial properties, and (B) organic antibacterial agents exhibiting antibacterial and deodorant performance continuously regardless of light irradiation. By adding a deodorant component and a deodorant component containing a natural extract (C) that shows immediate deodorant performance, the deodorant performance that instantly deodorizes the surrounding space at the time of construction, and gradually from the base material after construction It is also possible to have a deodorant performance that suppresses generated odors. The present invention has been completed based on this finding.
[0010]
Hereinafter, the antibacterial deodorizing composition of the present invention and the antibacterial deodorizing spray using the composition will be described in detail. That is, the antibacterial deodorizing composition of the present invention,
The following components (A), (B) and (C): (A) an inorganic antibacterial agent comprising a photocatalyst and a compound of an antibacterial metal; (B) an organic antibacterial agent; and (C) a deodorant component containing a natural extract. It is characterized by the following.
[0011]
The photocatalyst used in the inorganic antibacterial agent of the present invention means that an electron-hole pair is generated by irradiation with light, and the electron or hole is directly generated, or a superoxide ion (O 2 − ) or a hydroxyl radical is generated. It acts on organic substances, water, and metal ions on the surface via active oxygen such as (.OH) to have properties such as oxidative decomposition of organic substances, photolysis of water, and reduction carrying of metal ions. Applications of this function include an antibacterial function to kill microorganisms and mold, a deodorizing function to decompose surrounding odors, and a photodecomposition function to decompose water into hydrogen gas and oxygen gas only by irradiating light.
[0012]
In addition, the antibacterial metal compound used in the inorganic antibacterial agent of the present invention mainly represents an antibacterial metal simple substance such as Ag, Cu, and Zn, and an oxide of the antibacterial metal. Even when light is not applied, The inorganic antibacterial agent is added by its function so as to exhibit antibacterial performance. Furthermore, combining the compound of the antibacterial metal with the photocatalyst has an effect of improving the decomposition activity of the photocatalyst.
[0013]
The (A) inorganic antibacterial agent comprising a photocatalyst and a compound of an antibacterial metal used in the present invention exhibits an extremely strong oxidizing performance when exposed to light including ultraviolet rays such as sunlight and a photocatalyst exhibiting strong antibacterial performance and deodorizing performance. By combining antibacterial metal, it is possible to show antibacterial performance by the action of antibacterial metal even when light does not hit, and to show antibacterial and deodorant performance continuously even when light hits and when it does not hit. Used for purpose.
[0014]
Examples of the (B) organic antibacterial agent used in the present invention include benzimidazole, thiazole, isothiazole, isothiazolone, benzisothiazolone, zinc pyrithione, organic halogen, organic nitrogen, nitrogen-containing sulfur, A quaternary ammonium salt, chitosan and a decomposition product obtained by treating chitosan with chitinase can be suitably used. The amount of these organic antibacterial agents to be added is preferably 0.01 to 5% by weight, more preferably 0.02 to 2% by weight in terms of concentration.
By adding these organic antibacterial agents, it is used for the purpose of (A) complementing the slow antibacterial effect of the inorganic antibacterial agent composed of a photocatalyst and an antibacterial metal compound, and providing an immediate antibacterial performance. Is done.
[0015]
As the deodorant component containing the natural extract (C) used in the present invention, extract components such as tea, bamboo grass, mugwort, perilla, and rosemary can be suitably used.
By adding a deodorant component containing these natural extracts, (A) the slow-acting deodorizing effect of the inorganic antibacterial agent comprising a photocatalyst and a compound of an antibacterial metal is complemented, and immediate deodorizing performance is provided. Used for that purpose.
[0016]
In a preferred aspect of the present invention, the photocatalyst constituting the inorganic antibacterial agent (A) comprising a photocatalyst and a compound of an antibacterial metal is titanium oxide. Titanium oxide is chemically stable, has a strong decomposition activity when irradiated with light, and has a characteristic that a material stably dispersed in a solvent such as water is easily obtained. In particular, when titanium oxide having an anatase type or brookite type crystal structure is used, a strong photocatalytic activity can be obtained.
The particle diameter of the titanium oxide to be used is preferably 5 nm to 500 nm. When the particle size is less than 5 nm, the crystallinity of the titanium oxide is weakened, so that electron-hole charge separation becomes difficult to occur even by light irradiation, and a strong photocatalytic activity cannot be obtained. If the particle size exceeds 500 nm, it is difficult to use it practically because the trigger is likely to be clogged when sprayed.
[0017]
In a preferred embodiment of the present invention, (A) the antibacterial metal constituting the inorganic antibacterial agent comprising a compound of a photocatalyst and an antibacterial metal is at least one selected from Ag, Cu, and Zn. Ag is used to obtain a strong antibacterial property, Cu is used to obtain a strong antifungal property, and Zn is used to reduce coloring by metal. Can be used.
[0018]
(A) In an inorganic antibacterial agent comprising a photocatalyst and an antibacterial metal compound, the ratio of the photocatalyst to the antibacterial metal compound particles is such that (antibacterial metal compound) / (photocatalyst) is 0.5 to 5% by weight. desirable. When the amount of the antibacterial metal compound is less than 0.5% by weight, the antibacterial performance when no light is applied tends to be insufficient, and when the amount of the antibacterial metal compound is more than 5% by weight, the cost is high. It becomes difficult to use it practically.
[0019]
By enclosing the antibacterial deodorizing composition of the present invention together with a solvent in an aerosol container or a container provided with a trigger nozzle, an antibacterial deodorant that can be easily and easily applied to an existing base material surface by an installer. An odor treatment spray can be configured.
The solvent is not limited as long as the composition for antibacterial deodorization treatment according to the present invention is stably dispersed, and examples thereof include water or an organic solvent or a mixed solvent thereof. In particular, water, alcohol or a mixed solvent thereof can be suitably used.
[0020]
The antibacterial deodorizing spray of the present invention sprays sheets, mats, plastic members, curtains, mats, sofas, carpets, clothes and the like in automobiles to perform antibacterial deodorizing treatment on those substrates. enable. Further, by spraying the odor into a space where the odor is worrisome, it is possible to deodorize the stench which is contained in the space.
It goes without saying that the use of the antibacterial deodorizing treatment spray of the present invention is not limited to the above-mentioned examples.
[0021]
EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention.
[0022]
(Example 1)
First, 108.8 g of special grade ethanol (manufactured by Wako Pure Chemical Industries) was mixed with 88.8 g of ion-exchanged water to prepare a solvent. In this solvent, 0.1 g of an inorganic antibacterial agent containing titanium oxide and silver oxide (Atomie ball L manufactured by Catalyst Chemical Industry Co., Ltd.), a deodorant component containing 1 g of a natural extract (Smelal L-17WP manufactured by Environmental Chemicals), an organic compound An antimicrobial deodorizing composition was prepared by sequentially adding 0.1 g of an antibacterial agent (G-50 manufactured by Sanyo Chemical Industries) and mixing well.
[0023]
(Example 1)
First, 10 g of special grade ethanol (manufactured by Wako Pure Chemical Industries) is mixed with 88.8 g of ion-exchanged water to prepare a solvent. In this solvent, 0.1 g of a photocatalyst / silver inorganic antibacterial agent (Atomie L, manufactured by Kasei Kagaku Kogyo), 1 g of a deodorant component containing a natural extract (Smeral L-17WP, manufactured by Environmental Chemistry), and 0 organic antibacterial agent .1 g (G-50 manufactured by Sanyo Chemical Industries) was added sequentially and mixed well to prepare a composition for an antibacterial deodorizing treatment.
[0024]
(Comparative Example 1)
In Example 1, Comparative Example 1 was prepared without adding an organic antibacterial agent.
(Comparative Example 2)
Comparative Example 2 was prepared in Example 1 without adding a deodorant component including a natural extract.
[0025]
The following evaluation tests were performed on the compositions obtained in Example 1 and Comparative Examples 1 and 2.
[0026]
(Immediate antibacterial evaluation against airborne bacteria)
In order to compare the instantaneous antibacterial performance of Example 1 and Comparative Example 1 against airborne bacteria in a car, after collecting the initial airborne bacteria, each composition was sprayed into the car three times using a trigger spray. After standing for 5 minutes, the suspended bacteria in the vehicle were collected again. In consideration of the variation in the number of bacteria, three samples were taken for each sample and evaluated by the average value.
The collection of the suspended bacteria was performed as follows in accordance with the hygiene test method-air test (drop method). One standard agar medium (SMA) [manufactured by Nissui Pharmaceutical Co., Ltd.] was placed on each of the driver's seat, front passenger seat, and rear seat in the automobile, and the lid was opened for 5 minutes. After standing, the lid was closed and the SMA was cultured at 36 ± 1 ° C. for 48 hours. After the culture, the number of bacterial colonies was counted.
Table 1 shows the results.
[0027]
[Table 1]
As shown in Table 1, in the composition of Example 1 of the present invention, the number of airborne bacteria in the automobile was clearly reduced, and immediate antibacterial performance was observed.
On the other hand, in the composition containing no organic antibacterial agent of Comparative Example 1, no clear decrease in the bacterial count was observed, and the immediate antibacterial performance was not so good.
[0029]
(Evaluation of antibacterial property against attached bacteria)
In order to evaluate the antibacterial performance of the composition of Example 1 against adherent bacteria on an automobile sheet, the initial adherent bacteria were collected, and then the composition of Example 1 was applied three times per sheet using a trigger spray. Sprayed, left for 1 hour, left for 24 hours, and sprayed on the sheet twice a week for 1 month to collect the adherent bacteria. In consideration of the variation in the number of bacteria, three samples were taken for each of ten vehicles and evaluated by the average value.
The suspension bacteria were collected using a food stamp (SMA) standard agar medium for general bacteria [manufactured by Nissui Pharmaceutical Co., Ltd.], and the viable bacteria on the target sheet were collected, covered, and cultured at 36 ± 1 ° C. for 48 hours. . After the culture, the number of bacterial colonies was counted.
Table 2 shows the results.
[0030]
[Table 2]
As shown in Table 2, in the composition of Example 1 of the present invention, the number of attached bacteria on the automobile seat was clearly reduced, the number of suspended bacteria was reduced, and strong antibacterial properties were observed.
[0032]
From these facts, by using the composition for antibacterial deodorization treatment of the present invention to constitute an antibacterial deodorization treatment spray, the target substrate and the surrounding space can be easily subjected to antibacterial treatment. Becomes possible.
[0033]
(Immediate deodorization performance evaluation for odors in the space)
Immediately effective deodorizing performance against odors such as acetic acid generated when the bacteria proliferated was evaluated.
Two 5 L Tedlar bags were prepared, acetic acid was added to a concentration of 100 ppm, and after waiting until the concentration became uniform, 4 mL of the composition of Example 1 and Comparative Example 2 was added to each Tedlar bag. The change in acetic acid concentration up to 1 hour after the addition was measured by a detector tube.
The results are shown in FIG.
[0034]
As shown in FIG. 1, in the composition of Example 1 of the present invention, the acetic acid concentration was reduced to 1/10 or less within 10 minutes, and immediate deodorizing performance was recognized.
On the other hand, the composition containing no deodorant component containing the natural extract of Comparative Example 2 did not show a clear decrease in acetic acid concentration, and did not show immediate deodorant performance.
[0035]
(Evaluation of deodorant performance against odor generation due to bacterial growth)
The following evaluation was performed to evaluate the deodorant performance of the composition of Example 1 against the odor generated by the growth of bacteria. Two nonwoven fabrics (Asahi Kasei's Bencott) are impregnated with the same amount of organic substances (sliced minced pork, cabbage, onion, and squeezed) that cause odors. Each was left still. Once a day, the composition of Example 1 was sprayed on the nonwoven fabric in one closed container with a trigger spray, and the generation of methyl mercaptan was measured with a detector tube. For comparison, the nonwoven fabric in another closed container was sprayed with water once a day by a trigger spray, and the generation of methyl mercaptan was evaluated in the same manner.
The results are shown in FIG.
[0036]
As shown in FIG. 2, in the composition of Example 1 of the present invention, the generation of offensive odor due to the growth of bacteria was greatly suppressed, and a strong deodorant performance was observed.
[0037]
From these facts, by forming an antibacterial deodorizing treatment spray using the antibacterial deodorizing treatment composition of the present invention, the target substrate and the surrounding space can be easily deodorized and deodorized. Processing.
[Brief description of the drawings]
FIG. 1 is a graph showing the results of immediate deodorizing performance evaluation for a smell confined in a space.
FIG. 2 is a graph showing the results of evaluation of deodorant performance against odors derived from the growth of bacteria.
Claims (7)
（Ａ）光触媒及び抗菌金属の化合物からなる無機系抗菌剤
（Ｂ）有機系抗菌剤
（Ｃ）天然抽出物を含む消臭成分An antibacterial deodorizing composition comprising the following components (A), (B) and (C).
(A) an inorganic antibacterial agent comprising a photocatalyst and a compound of an antibacterial metal (B) an organic antibacterial agent (C) a deodorant component containing a natural extract
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003066072A JP2004269470A (en) | 2003-03-12 | 2003-03-12 | Composition for antibacterial deodorizing treatment and antibacterial deodorizing spray using the same |
Applications Claiming Priority (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8641921B2 (en) | 2007-03-19 | 2014-02-04 | Umicore | Room temperature single phase Li insertion/extraction material for use in Li-based battery |
| CN108432747A (en) * | 2018-02-05 | 2018-08-24 | 南京凯创协同纳米技术有限公司 | Carpet antimicrobial spray |
| KR102148226B1 (en) * | 2020-06-05 | 2020-08-26 | 주식회사 일송글로벌 | Antibacterial and antifungal compositions and uses thereof |
| KR102163232B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Masterbatch having antibacterial and anti-fungal properties and its manufacturing method |
| KR102163251B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Filter harmless to human body with semi-permanent microbial suppression |
| KR102163253B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Fiber molded products with semi-permanent antibacterial and deodorizing properties |
| KR102163245B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Synthetic fiber with semi-permanent antibacterial and anti-fungal properties and uses thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776654A (en) * | 1993-09-08 | 1995-03-20 | Shin Etsu Chem Co Ltd | Mildew proofing silicone rubber composition and silicone rubber |
| JPH09239012A (en) * | 1996-03-07 | 1997-09-16 | Bio Medeiku Kenkyusho:Kk | Deodorant composition and deodorant antimicrobial agent |
| JP2002003326A (en) * | 2000-06-23 | 2002-01-09 | Ito En Ltd | Antimicrobial agent containing tea as component |
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- 2003-03-12 JP JP2003066072A patent/JP2004269470A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776654A (en) * | 1993-09-08 | 1995-03-20 | Shin Etsu Chem Co Ltd | Mildew proofing silicone rubber composition and silicone rubber |
| JPH09239012A (en) * | 1996-03-07 | 1997-09-16 | Bio Medeiku Kenkyusho:Kk | Deodorant composition and deodorant antimicrobial agent |
| JP2002003326A (en) * | 2000-06-23 | 2002-01-09 | Ito En Ltd | Antimicrobial agent containing tea as component |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8641921B2 (en) | 2007-03-19 | 2014-02-04 | Umicore | Room temperature single phase Li insertion/extraction material for use in Li-based battery |
| CN108432747A (en) * | 2018-02-05 | 2018-08-24 | 南京凯创协同纳米技术有限公司 | Carpet antimicrobial spray |
| KR102148226B1 (en) * | 2020-06-05 | 2020-08-26 | 주식회사 일송글로벌 | Antibacterial and antifungal compositions and uses thereof |
| KR102163232B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Masterbatch having antibacterial and anti-fungal properties and its manufacturing method |
| KR102163251B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Filter harmless to human body with semi-permanent microbial suppression |
| KR102163253B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Fiber molded products with semi-permanent antibacterial and deodorizing properties |
| KR102163245B1 (en) * | 2020-08-14 | 2020-10-08 | 주식회사 일송글로벌 | Synthetic fiber with semi-permanent antibacterial and anti-fungal properties and uses thereof |
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