JP4136048B2 - Industrial antimicrobial composition and antimicrobial method - Google Patents

Industrial antimicrobial composition and antimicrobial method Download PDF

Info

Publication number
JP4136048B2
JP4136048B2 JP03800398A JP3800398A JP4136048B2 JP 4136048 B2 JP4136048 B2 JP 4136048B2 JP 03800398 A JP03800398 A JP 03800398A JP 3800398 A JP3800398 A JP 3800398A JP 4136048 B2 JP4136048 B2 JP 4136048B2
Authority
JP
Japan
Prior art keywords
dibromo
industrial
antimicrobial
antibacterial
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP03800398A
Other languages
Japanese (ja)
Other versions
JPH11222404A (en
Inventor
均 江川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumika Enviro Science Co Ltd
Original Assignee
Sumika Enviro Science Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumika Enviro Science Co Ltd filed Critical Sumika Enviro Science Co Ltd
Priority to JP03800398A priority Critical patent/JP4136048B2/en
Publication of JPH11222404A publication Critical patent/JPH11222404A/en
Application granted granted Critical
Publication of JP4136048B2 publication Critical patent/JP4136048B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、紙パルプ工業用分野における抄紙工程中の細菌・真菌をはじめとする微生物に由来するスライムの付着を防止するため、また塗料、ラテックス、デンプンスラリー液紙用コーティングカラー、洗浄水、冷却水、接着剤、金属加工油等の水をベースに作成されている工業用水系組成物が微生物汚染による腐敗、変色、物性劣化を受けることを防止するための抗菌組成物及び抗菌方法に関するものである。
【0002】
【従来の技術】
紙パルプ工業分野における抄紙工程では、紙を生産するために大量の水を使用しており、その水には紙を生産するために必要な各種有機物が分散・溶解しているため、細菌、真菌等の微生物の栄養源となりやすい。製紙工程中で細菌・真菌等の微生物がそれら栄養源を元にして繁殖し、粘液状の代謝産物を産出し、パルプ、填料など製紙工程中に分散している製紙原料を取り込んで、水流の淀んだチェスト内の壁面やフローボックス等にスライムを形成する。形成されたスライムは、徐々に増大しやがて離脱しパルプ等の製紙原料と共に紙に抄き込まれ紙上の異物となってあらわれ、品質の低下をまねく。また最近では、紙をかなり高速で抄くため、最悪の場合断紙となり、生産性の低下を引き起こす。
【0003】
また、塗料、ラテックス、デンプンスラリー液等水をベースに作成されている工業用水系組成物についても、細菌に汚染されることによって腐敗が生じ、臭気の発生や粘度低下、pH変動等の物性劣化を引き起こしたり、真菌(糸状菌)が繁殖することによってストレーナーの目詰まり、着色、異物混入等を引き起こす。
【0004】
抄紙工程における微生物要因によるスライムの発生防止するために抗菌剤として各種の薬剤が使用されてきた。またそれは各種水系組成物の腐敗防止を目的とした抗菌剤においても同様である。たとえば抄紙工程においては、殺菌力の非常に強い2,2−ジブロモ−3−ニトリロプロピオンアミドをはじめ4,5−ジクロロ−1,2−ジチオール−3−オンや静菌力にすぐれたメチレンビスチオシアネート、1,4−ビス(ブロモアセトキシ)−2−ブテン又は1,2−ビス(ブロモアセトキシ)エタンなどがよく使用されている。水系組成物の腐敗防止には防腐という性格上、静菌力のすぐれ、水系組成物中での安定性にすぐれた5−クロロ−2−メチル−4−イソチアゾリン−3−オン、1,2−ベンズイソチアゾリン−3−オン、2,2−ジブロモ−2−ニトロエタノール、2−ブロモ−2−ニトロプロパン−1,3−ジオールなどがよく使用されている。
【0005】
しかし単一薬剤の長期に渡る連続使用は、耐性菌の出現を招きやすいため、過去に種々の2成分又は3成分の組み合わせによる抗菌剤が使用されてきた。たとえば、2成分の組み合わせには、特公平7−45366における4,5−ジクロロ−1,2−ジチオール−3−オンと5−クロロ−2−メチル−4−イソチアゾリン−3−オンの組み合わせ、特公平1−20121における2,2−ジブロモ−3−ニトリロプロピオンアミドと4,5−ジクロロ−1,2−ジチオール−3−オンの組み合わせなど多数開示されている。3成分の組み合わせには、特開平7−187920における2,2−ジブロモ−3−ニトリロプロピオンアミドと4,5−ジクロロ−1,2−ジチオール−3−オンと5−クロロ−2−メチル−4−イソチアゾリン−3−オンの組み合わせ、特開平7−25708における2,2−ジブロモ−3−ニトリロプロピオンアミドとメチレンビスチオシアネートと2,2−ジブロモ−2−ニトロエタノールの組み合わせなどが開示されている。これらの組み合わせは単一薬剤が長期にわたって使用されていた製紙工程及び水系組成物に対して良好な効力をもっているが、2成分、3成分の組み合わせの薬剤が微生物を制御する手段として一般的になり、組み合わせ配合でも長期使用による耐性菌が出現し始めてきたため、さらなる殺菌、静菌効力をもった低濃度で有効な薬剤が望まれている。
【0006】
【発明が解決しようとする課題】
本発明は、前記のような要望に応えるため、従来の組み合わせでは不充分であった強力な殺菌力又は静菌力をもった、広範囲の微生物に対して有効な薬剤を提供することにある。
【0007】
【課題を解決するための手段】
本発明者は、課題を解決するために各種成分の組み合わせにおける効力の確認を行い、鋭意研究を重ねた結果、(A)ハロシアノアセトアミド化合物と(B)ハロゲン化脂肪族ニトロアルコール誘導体及び(C)4,5−ジクロロ−1,2−ジチオール−3−オンの3種の有効成分を含有する工業用抗菌組成物が低濃度でも良好な殺菌力、静菌力を併せ持つ非常に優れた抗菌組成物であることを見いだした。すなわち本発明は(A)下記一般式

Figure 0004136048
(式中のXはハロゲン原子、Yは水素原子又はハロゲン原子、R1 は水素原子又は低級アルキル基を示す)で表されるハロシアノアセトアミド化合物、(B)下記一般式
Figure 0004136048
(式中のXはハロゲン原子、R2 はハロゲン原子又はアルキル基又はヒドロキシアルキル基を示す)で表されるハロゲン化脂肪族ニトロアルコール誘導体及び(C)4,5−ジクロロ−1,2−ジチオール−3−オンを含有することを特徴とする工業用抗菌組成物であり、またこれらの有効成分を製紙工程白水又は工業用水系組成物に1〜20000ppm添加する抗菌方法である。
【0008】
【発明の実施の形態】
本発明の(A)成分としては、
一般式
Figure 0004136048
(式中のXはハロゲン原子、Yは水素原子又はハロゲン原子、R1 は水素原子又は低級アルキル基を示す)で表されるハロシアノアセトアミド化合物が用いられ、たとえば2−クロロ−3−ニトリロプロピオンアミド、2−ブロモ−3−ニトリロプロピオンアミド、2,2−ジクロロ−3−ニトリロプロピオンアミド、2,2−ジブロモ−3−ニトリロプロピオンアミドなどが含まれる。これらは単独で用いても良いし、2種以上を組み合わせても良い。
【0009】
本発明の(B)成分としては、
一般式
Figure 0004136048
(式中のXはハロゲン原子、R2 はハロゲン原子又はアルキル基又はヒドロキシアルキル基を示す)で表されるハロゲン化脂肪族ニトロアルコール誘導体が用いられ、たとえば2−ブロモ−2−ニトロプロパン−1,3−ジオール又は2,2−ジブロモ−2−ニトロ−1−エタノールなどが含まれる。これらは単独で用いても良いし、2種以上を組み合わせても良い。
【0010】
(A)ハロシアノアセトアミド化合物は比較的殺菌効力に優れ、(B)ハロゲン化脂肪族ニトロアルコール誘導体は比較的静菌効力に優れ、(C)4,5−ジクロロ−1,2−ジチオール−3−オンは比較的殺菌効力に優れており、それぞれの有効成分の効果が異なるので、本発明の3種成分の内1種又は2種の配合量が極端に低いとその効果が期待できないため、成分(A)を1重量部に対して、成分(B)が0.01〜10重量部好ましくは0.1〜1重量部で、成分(A)と成分(B)の合計量を1重量部とした時、成分(C)0.01〜10重量部好ましくは0.05〜0.3重量部を含む含有割合が望ましい。また各々の有効成分を混ぜることによる効力の相乗作用の点からもこの含有割合が望ましい。
【0011】
抗菌方法としては、上記3種の有効成分を含有した抗菌組成物を添加してもよいし、上記3種の有効成分をそれぞれ別々に添加しても良い。添加量は製紙工程白水又は工業用水系組成物に1〜20000ppm添加するのが好ましい。
【0012】
本発明の有効成分の抄紙工程中又は水系組成物への添加方法は、各々別々でも、製剤化した混合物でもよい。製剤化に際して用いられる溶媒、界面活性剤などは特に限定しない。しかし、微生物の増殖を引き起こす抄紙工程水や水系組成物などの薬剤添加対象物が水を主とした組成であるため、溶媒は比較的親水性のものが望ましい。
【0013】
溶媒としては、エチレングリコール、プロピレングリコール、ジエチレングリコール、トリエチレングリコール、ジプロピレングリコール、ヘキシレングリコールなどのグリコール系溶剤、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノブチルエーテルなどのグリコールエーテル系溶剤やプロピレンカーボネートなどが使用できる。これらはこれらは単独で用いても良いし、2種以上を組み合わせも良く、有効成分の3種を溶解できる添加量があれば良い。
【0014】
界面活性剤としては非イオン系界面活性剤、陰イオン系界面活性剤、陽イオン系界面活性剤、両イオン系界面活性剤などが使用できる。
【0015】
【実施例】
次に本発明の実施例および比較例をあげて説明するが、本発明はこれらに限定されるものではない。下表に示した配合比率はすべて重量%である。
また、各実施例の抗菌組成物は各実施例に示す各成分をそれぞれ示す割合で常温において通常の撹拌によって調製した。
【0016】
実施例1〜6
表1に示す抗菌剤組成物を調製し、試験例1、試験例2、試験例3、試験例4により、その性能を調べた。なお表中の有効成分の表示は以下の略語にて表す。
【0017】
2,2−ジブロモ−3−ニトリロプロピオンアミド :DBNPA(A成分)
2,2−ジブロモ−2−ニトロ−1−エタノール :DBNE(B成分)
4,5−ジクロロ−1,2−ジチオール−3−オン :DCDT(C成分)
【0018】
【表1】
Figure 0004136048
【0019】
比較例1〜4
表2に示す抗菌剤組成物を調製し、試験例1、試験例2、試験例3により、その性能を調べた。
【0020】
【表2】
Figure 0004136048
【0021】
試験例1.製紙工程白水に対する殺菌力評価
「試験方法」実施例及び比較例の製剤品を所定濃度添加した下記対象試料を培養し、菌数の経時変化を変性ワックスマン寒天平板混釈法(試料を滅菌水で希釈し、この一定量を滅菌シャーレにとり、溶解した変性ワックスマン寒天培地を注入し、混釈した後固化させる。30℃の恒温室内で2日間培養後形成されたコロニー数をカウントする。)にて測定した。
対象試料:製紙工程白水、上質紙抄造、pH7.1、生菌数2.3×107 CFU/ml
「試験結果」各製剤品を添加後30分、60分後の菌数値を測定し、薬剤無添加試料の菌数値と製剤品添加試料の菌数値の増減値差を表3に示した。
増減値差:
所定時間後の薬剤無添加試料の菌数の対数値製剤品添加試料の菌数の対数値
値が大きい方が殺菌効力が大きい。
「考察」表3に示したように比較例1〜3の単独の有効成分の製剤品、比較例4〜6の2種の有効成分の製剤品の増減値差に比べて、実施例1〜3の3種の有効成分の製剤品の増減値差は明らかに大きい値を示し、有効成分各々単独又は2種混合の製剤品に比べて3種混合の製剤品は製紙工程白水に対して顕著な殺菌力を示すことが確認された。
【0022】
【表3】
Figure 0004136048
【0023】
試験例2.製紙工程白水に対する静菌力評価
「試験方法」実施例及び比較例の製剤品を下記対象試料を無菌濾過したものに所定濃度添加後、10倍濃度変性ワックスマン液体培地を1%添加、対象試料を接種用としてそのまま1%添加した。比濁法による濁度の変化を経時的に記録した微生物増殖曲線によって、静菌力を測定した。
対象試料:製紙工程白水、上質紙抄造、pH7.1、生菌数2.3×107 CFU/ml
「試験結果」薬剤無添加試料の微生物増殖曲線の立ち上がり時間と各製剤品添加試料の微生物増殖曲線の立ち上がり時間との差を表4に示した。
差:各製剤品添加試料の立ち上がり時間薬剤無添加試料の立ち上がり時間
差の値が大きい程、静菌効力が大きい。
「考察」表4に示したように比較例1〜3の単独の有効成分の製剤品、比較例4〜6の2種の有効成分の製剤品の薬剤無添加試料との立ち上がり時間の差に比べて、実施例1〜3の3種の有効成分の製剤品の立ち上がり時間の差は明らかに大きい値を示し、有効成分各々単独又は2種混合の製剤品に比べて3種混合の製剤品は製紙工程白水に対して顕著な静菌力を示すことが確認された。
【0024】
【表4】
Figure 0004136048
【0025】
試験例3.デンプンスラリーの防腐評価
「試験方法」カチオン化タピオカデンプンの10%スラリー(pH6.3)を調製し、滅菌ポリプロピレン瓶に30g分注し薬剤を所定量添加した後、あらかじめ腐敗させたデンプンスラリー(菌数:4.5×107 )を1%接種した。これを密閉静置条件で30℃で培養し、TGC寒天平板混釈法によって経時的な生菌数を測定し、防腐効果を判定した。また、生菌数測定後、腐敗品を1週間毎に、1%接種した。
「試験結果」下記の判定基準をもって判定し、試験結果を表5に示した。
Figure 0004136048
「考察」表5に示したように比較例1〜3の単独の有効成分の製剤品、比較例4〜6の2種の有効成分の製剤品の28日目の評価結果は+++〜++++であるのに対して、実施例1〜3の3種の有効成分の評価結果は+〜++で、有効成分各々単独又は2種混合の製剤品に比べて3種混合の製剤品はデンプンスラリーに対して顕著な防腐効力を示すことが確認された。
【0026】
【表5】
Figure 0004136048
【0027】
【発明の効果】
以上のように本発明を適用した場合、従来の単独又は2種混合の組み合わせでは不充分であった強力な殺菌力、長時間にわたる静菌力、長期間にわたる防腐効力を合わせ持った抗菌組成物または抗菌方法の提供が可能である。[0001]
BACKGROUND OF THE INVENTION
The present invention prevents adhesion of slime derived from microorganisms such as bacteria and fungi during the paper making process in the field of paper pulp industry, and also provides paint, latex, coating color for starch slurry liquid paper, washing water, cooling It relates to an antibacterial composition and an antibacterial method for preventing industrial water-based compositions prepared based on water such as water, adhesives and metalworking oils from being spoiled, discolored and deteriorated in physical properties due to microbial contamination. is there.
[0002]
[Prior art]
In the papermaking process in the pulp and paper industry, a large amount of water is used to produce paper, and various organic substances necessary for producing paper are dispersed and dissolved in the water. It is easy to become a nutrient source of microorganisms such as. Microorganisms such as bacteria and fungi propagate in the papermaking process based on these nutrient sources, produce viscous liquid metabolites, take in papermaking raw materials dispersed in the papermaking process such as pulp and filler, Slime is formed on the wall or flow box in the stagnant chest. The formed slime gradually increases and then leaves and is incorporated into the paper together with papermaking raw materials such as pulp and appears as a foreign matter on the paper, resulting in a decrease in quality. Also, recently, paper is made at a very high speed, and in the worst case, the paper is cut off, causing a decrease in productivity.
[0003]
In addition, industrial water-based compositions made based on water, such as paints, latex, starch slurry, etc., may be spoiled by being contaminated with bacteria, resulting in deterioration of physical properties such as odor generation, viscosity reduction, pH fluctuation, etc. Cause strain or clogging of the strainer, coloring, contamination with foreign substances, etc.
[0004]
Various agents have been used as antibacterial agents to prevent slime generation due to microbial factors in the papermaking process. The same applies to antibacterial agents intended to prevent spoilage of various aqueous compositions. For example, in the papermaking process, 2,2-dibromo-3-nitrilopropionamide, which has a very strong bactericidal activity, 4,5-dichloro-1,2-dithiol-3-one, and methylenebisthiocyanate with excellent bacteriostatic activity 1,4-bis (bromoacetoxy) -2-butene or 1,2-bis (bromoacetoxy) ethane is often used. 5-Chloro-2-methyl-4-isothiazolin-3-one, 1,2- excellent in bacteriostatic power and excellent stability in an aqueous composition in terms of antiseptic properties to prevent corruption of the aqueous composition Benzisothiazolin-3-one, 2,2-dibromo-2-nitroethanol, 2-bromo-2-nitropropane-1,3-diol and the like are often used.
[0005]
However, long-term continuous use of a single drug tends to cause the appearance of resistant bacteria, and thus antibacterial agents using various combinations of two or three components have been used in the past. For example, the combination of two components includes a combination of 4,5-dichloro-1,2-dithiol-3-one and 5-chloro-2-methyl-4-isothiazolin-3-one in JP 7-45366, A number of combinations of 2,2-dibromo-3-nitrilopropionamide and 4,5-dichloro-1,2-dithiol-3-one in Kohei 1-20121 have been disclosed. The combination of the three components includes 2,2-dibromo-3-nitrilopropionamide, 4,5-dichloro-1,2-dithiol-3-one and 5-chloro-2-methyl-4 in JP-A-7-187920. -A combination of isothiazoline-3-one, a combination of 2,2-dibromo-3-nitrilopropionamide, methylenebisthiocyanate and 2,2-dibromo-2-nitroethanol in JP-A-7-25708 is disclosed. These combinations have good efficacy for papermaking processes and aqueous compositions where a single agent has been used for a long time, but a combination of two-component and three-component agents has become a common means of controlling microorganisms. In addition, since resistant bacteria due to long-term use have begun to appear even in combination formulations, a low-concentration and effective drug with further bactericidal and bacteriostatic efficacy is desired.
[0006]
[Problems to be solved by the invention]
The present invention is to provide a drug effective against a wide range of microorganisms having a strong bactericidal or bacteriostatic power that has been insufficient with conventional combinations in order to meet the above-mentioned demand.
[0007]
[Means for Solving the Problems]
In order to solve the problem, the present inventor has confirmed the efficacy in the combination of various components, and as a result of extensive research, (A) a halocyanoacetamide compound, (B) a halogenated aliphatic nitroalcohol derivative, and (C ) Industrial antibacterial composition containing three active ingredients of 4,5-dichloro-1,2-dithiol-3-one has excellent antibacterial and bacteriostatic properties even at low concentrations. I found it to be a thing. That is, the present invention provides (A) the following general formula
Figure 0004136048
(Wherein X represents a halogen atom, Y represents a hydrogen atom or a halogen atom, R 1 represents a hydrogen atom or a lower alkyl group), (B) the following general formula
Figure 0004136048
(Wherein X represents a halogen atom, R 2 represents a halogen atom, an alkyl group or a hydroxyalkyl group) and (C) 4,5-dichloro-1,2-dithiol It is an industrial antibacterial composition characterized by containing -3-one, and is an antibacterial method of adding 1 to 20000 ppm of these active ingredients to white paper or industrial aqueous composition.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
As the component (A) of the present invention,
General formula
Figure 0004136048
(Wherein X represents a halogen atom, Y represents a hydrogen atom or a halogen atom, and R 1 represents a hydrogen atom or a lower alkyl group), for example, 2-chloro-3-nitrilopropion Amides, 2-bromo-3-nitrilopropionamide, 2,2-dichloro-3-nitrilopropionamide, 2,2-dibromo-3-nitrilopropionamide and the like are included. These may be used alone or in combination of two or more.
[0009]
As the component (B) of the present invention,
General formula
Figure 0004136048
(Wherein X represents a halogen atom, R 2 represents a halogen atom, an alkyl group or a hydroxyalkyl group), and a halogenated aliphatic nitroalcohol derivative represented by, for example, 2-bromo-2-nitropropane-1 , 3-diol or 2,2-dibromo-2-nitro-1-ethanol. These may be used alone or in combination of two or more.
[0010]
(A) The halocyanoacetamide compound has a relatively excellent bactericidal effect, (B) the halogenated aliphatic nitroalcohol derivative has a relatively excellent bacteriostatic effect, and (C) 4,5-dichloro-1,2-dithiol-3 -ON is relatively excellent in bactericidal efficacy, and since the effect of each active ingredient is different, the effect cannot be expected if the amount of one or two of the three components of the present invention is extremely low, With respect to 1 part by weight of component (A), component (B) is 0.01 to 10 parts by weight, preferably 0.1 to 1 part by weight, and the total amount of component (A) and component (B) is 1 part by weight. The content ratio including component (C) is 0.01 to 10 parts by weight, preferably 0.05 to 0.3 parts by weight. This content ratio is also desirable from the viewpoint of the synergistic effect of efficacy by mixing each active ingredient.
[0011]
As an antibacterial method, an antibacterial composition containing the above three active ingredients may be added, or the above three active ingredients may be added separately. The addition amount is preferably 1 to 20000 ppm added to the papermaking process white water or industrial water-based composition.
[0012]
The method of adding the active ingredient of the present invention during the paper making process or to the aqueous composition may be separate or formulated. There are no particular limitations on the solvent, surfactant, etc. used in the formulation. However, since the chemicals to be added such as papermaking process water and aqueous compositions that cause the growth of microorganisms are mainly composed of water, the solvent is preferably relatively hydrophilic.
[0013]
Solvents include glycol solvents such as ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, and hexylene glycol, glycol ether solvents such as diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, and diethylene glycol monobutyl ether, and propylene carbonate. Etc. can be used. These may be used alone or in combination of two or more, as long as there is an addition amount capable of dissolving the three active ingredients.
[0014]
As the surfactant, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants and the like can be used.
[0015]
【Example】
Next, although an example and a comparative example of the present invention are given and explained, the present invention is not limited to these. The blending ratios shown in the table below are all by weight.
Moreover, the antibacterial composition of each Example was prepared by normal stirring at normal temperature in the ratio which shows each component shown in each Example, respectively.
[0016]
Examples 1-6
The antibacterial composition shown in Table 1 was prepared, and the performance was examined by Test Example 1, Test Example 2, Test Example 3, and Test Example 4. In addition, the display of the active ingredient in a table | surface is represented by the following abbreviations.
[0017]
2,2-dibromo-3-nitrilopropionamide: DBNPA (component A)
2,2-dibromo-2-nitro-1-ethanol: DBNE (component B)
4,5-dichloro-1,2-dithiol-3-one: DCDT (component C)
[0018]
[Table 1]
Figure 0004136048
[0019]
Comparative Examples 1-4
Antibacterial agent compositions shown in Table 2 were prepared, and their performance was examined by Test Example 1, Test Example 2, and Test Example 3.
[0020]
[Table 2]
Figure 0004136048
[0021]
Test Example 1 Evaluation of bactericidal activity against white water in papermaking process “Test method” The following target samples to which the preparations of the examples and comparative examples were added at a predetermined concentration were cultured, and the change in the number of bacteria over time was determined by the modified Waxman agar plate mixing method (samples in sterile water) (The sample is diluted with a sterilized petri dish, poured into a sterilized petri dish, infused with a denatured Waxman agar medium, mixed, and solidified. The number of colonies formed after 2 days of cultivation in a thermostatic chamber at 30 ° C. is counted.) Measured with
Target sample: Papermaking process White water, fine paper making, pH 7.1, viable cell count 2.3 × 10 7 CFU / ml
“Test results” 30 and 60 minutes after the addition of each preparation, the bacterial values were measured, and the difference in increase / decrease in the bacterial value of the drug-free sample and the bacterial value of the preparation-added sample is shown in Table 3.
Increase / decrease value difference:
Logarithmic value of the number of bacteria in the sample with no drug added after a predetermined time-The logarithmic value of the number of bacteria in the sample with added drug product has a larger bactericidal effect.
"Discussion" As shown in Table 3, compared to the difference in increase / decrease values of the single active ingredient preparations of Comparative Examples 1 to 3 and the two active ingredient preparations of Comparative Examples 4 to 6, Examples 1 to The difference in the increase / decrease values of the three active ingredient preparations in No. 3 is clearly large, and the three kinds of preparations are more prominent than the white water in the papermaking process compared to the active ingredients each alone or in combination of the two kinds. It was confirmed that the sterilizing power was shown.
[0022]
[Table 3]
Figure 0004136048
[0023]
Test Example 2 Evaluation of bacteriostatic power against white water in papermaking process "Test method" Addition of 1% of 10-fold modified Waxmann liquid medium after addition of a predetermined concentration of the preparations of Examples and Comparative Examples to those obtained by aseptic filtration of the following target samples 1% was added as it was for inoculation. Bacteriostatic power was measured by a microbial growth curve in which changes in turbidity by the turbidimetric method were recorded over time.
Target sample: Papermaking process White water, fine paper making, pH 7.1, viable cell count 2.3 × 10 7 CFU / ml
“Test results” Table 4 shows the difference between the rise time of the microbial growth curve of the sample with no drug added and the rise time of the microbial growth curve of each sample with added drug product.
Difference: Rise time of each preparation-added sample-Rise time of drug-free sample The greater the value of the difference, the greater the bacteriostatic effect.
“Discussion” As shown in Table 4, the difference in the rise time between the single active ingredient preparation of Comparative Examples 1 to 3 and the two active ingredient preparations of Comparative Examples 4 to 6 from the drug-free sample In comparison, the difference in the rise time of the three active ingredient preparations of Examples 1 to 3 clearly shows a large value, and each of the active ingredients is a single preparation or a mixture of three kinds compared to the preparation of two kinds. Was confirmed to have a remarkable bacteriostatic activity against white water in the papermaking process.
[0024]
[Table 4]
Figure 0004136048
[0025]
Test Example 3 Preservation Evaluation of Starch Slurry “Test Method” A 10% slurry (pH 6.3) of cationized tapioca starch was prepared, 30 g was dispensed into a sterilized polypropylene bottle, a predetermined amount of a drug was added, and then a pre-stained starch slurry (bacteria Number: 4.5 × 10 7 ) was inoculated 1%. This was cultured at 30 ° C. in a closed stationary condition, and the number of viable bacteria over time was measured by the TGC agar plate pour method to determine the antiseptic effect. In addition, after the viable count, 1% of the spoiled product was inoculated every week.
“Test Results” Judgment was made according to the following criteria, and the test results are shown in Table 5.
Figure 0004136048
“Discussion” As shown in Table 5, the evaluation results on the 28th day of the single active ingredient preparations of Comparative Examples 1 to 3 and the two active ingredient preparations of Comparative Examples 4 to 6 are +++ to +++++. On the other hand, the evaluation results of the three active ingredients in Examples 1 to 3 are + to ++. Compared with each of the active ingredients alone or in a mixture of two kinds, the three kinds of preparation are converted into starch slurry. On the other hand, it was confirmed to show a remarkable antiseptic effect.
[0026]
[Table 5]
Figure 0004136048
[0027]
【The invention's effect】
As described above, when the present invention is applied, an antibacterial composition having strong bactericidal power, long-term bacteriostatic power, and long-term antiseptic effect, which has been insufficient with conventional single or two-type combinations. Alternatively, an antibacterial method can be provided.

Claims (2)

2,2−ジブロモ−3−ニトロプロピオンアミド1重量部に対して、2,2−ジブロモ−2−ニトロ−1−エタノール0.1〜1重量部で、2,2−ジブロモ−3−ニトロプロピオンアミドと2,2−ジブロモ−2−ニトロ−1−エタノールの合計量を1重量部とした時、4,5−ジクロロ−1,2−ジチオール−3−オンを0.05〜0.3重量部含むことを特徴とする工業用抗菌組成物。2,1-dibromo-3-nitropropionamide is 0.1 to 1 part by weight of 2,2-dibromo-2-nitro-1-ethanol with respect to 1 part by weight of 2,2-dibromo-3-nitropropionamide. When the total amount of amide and 2,2-dibromo-2-nitro-1-ethanol is 1 part by weight, 0.05 to 0.3 weight of 4,5-dichloro-1,2-dithiol-3-one An antibacterial composition for industrial use characterized by containing a part. 請求項1記載の工業用抗菌組成物を工業用水系組成物に1〜20000ppm添加することを特徴とする抗菌方法。An antibacterial method comprising adding 1 to 20000 ppm of the industrial antibacterial composition according to claim 1 to an industrial aqueous composition .
JP03800398A 1998-02-03 1998-02-03 Industrial antimicrobial composition and antimicrobial method Expired - Fee Related JP4136048B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03800398A JP4136048B2 (en) 1998-02-03 1998-02-03 Industrial antimicrobial composition and antimicrobial method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03800398A JP4136048B2 (en) 1998-02-03 1998-02-03 Industrial antimicrobial composition and antimicrobial method

Publications (2)

Publication Number Publication Date
JPH11222404A JPH11222404A (en) 1999-08-17
JP4136048B2 true JP4136048B2 (en) 2008-08-20

Family

ID=12513410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03800398A Expired - Fee Related JP4136048B2 (en) 1998-02-03 1998-02-03 Industrial antimicrobial composition and antimicrobial method

Country Status (1)

Country Link
JP (1) JP4136048B2 (en)

Also Published As

Publication number Publication date
JPH11222404A (en) 1999-08-17

Similar Documents

Publication Publication Date Title
JP5435475B2 (en) Liquid composition containing histidine silver complex, bactericidal composition, and method for stabilizing histidine silver complex
JP4245097B2 (en) Harmful microorganism eradication agent
JP4136048B2 (en) Industrial antimicrobial composition and antimicrobial method
JP4141542B2 (en) Industrial disinfectant and disinfecting method using the same
JP4726333B2 (en) Industrial antibacterial composition and antibacterial method
JP2001192308A (en) Industrial bactericidal antiseptic agent and method for bactericidal antiseptic treatment using the agent
JP4149045B2 (en) Industrial antibacterial agent composition and antibacterial method
JP4141018B2 (en) Industrial antibacterial agent composition and antibacterial method
JPH11222405A (en) Antimicrobial composition for industrial use and antimicrobial treatment
JP2000063211A (en) Industrial antimicrobial agent composition and antimicrobial method
JP2000080002A (en) Antimicrobial composition for industrial purpose and antimicrobial method
JPH10298006A (en) Sterilization composition for industry and sterilization
JP3754987B2 (en) Industrial sterilization / bacteriostatic agent and industrial sterilization / bacteriostatic method
JPH0967212A (en) Composition for exterminating noxious microorganism
JP3848970B2 (en) Industrial disinfectant / bacteriostatic agent and industrial disinfectant / bacteriostatic method
JPH07277911A (en) Bactericidal agent composition and bactericidal method by using the composition
JP4201885B2 (en) Harmful microorganism eradication agent
JP2000063212A (en) Industrial antimicrobial agent composition and antimicrobial method
JPH05163107A (en) Industrial germicidal composition
JPH08245317A (en) Industrial germicidal and antiseptic agent
JP2001181113A (en) Industrial disinfectant/antiseptic and disinfecting/ antisepticizing method using the same
JPH0774128B2 (en) Industrial fungicide
JP2815327B2 (en) Industrial fungicide composition
JP2000053511A (en) Industrial microbicidal/antiseptic agent and sterilization/ antiseptization using the same
JPH11322510A (en) Industrial antimicrobial agent composition and antimicrobial method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20041109

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20070611

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080313

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080502

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080527

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080603

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110613

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120613

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130613

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130613

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130613

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130613

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees