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Industrial antibiotic composition and antibacterial method

An antibacterial composition, an industrial technology, applied in the fields of botanical equipment and methods, chemicals for biological control, applications, etc., can solve the problems of mutagenicity, easy to cause allergic reactions, reduced antibacterial power, poor antibacterial effect, etc. , to achieve the effect of small load on human body and environment, high antibacterial power and stable antibacterial effect

Inactive Publication Date: 2007-10-03
KURITA WATER INDUSTRIES LTD
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Problems solved by technology

However, there are the following problems: when the pH value of BIT reaches 9 or more, it will cause structural changes, resulting in a significant decrease in antibacterial effect; triazine will emit formaldehyde
For example, it is known that among isothiazolin-3-one compounds, although CL-MIT has a high antibacterial effect, there are safety problems such as mutagenicity or easy to cause allergic reactions, and 2-methyl-4-iso Thiazolin-3-one (hereinafter referred to as "MIT") is highly safe, but compared with CL-MIT, its antibacterial effect is poor

Method used

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  • Industrial antibiotic composition and antibacterial method
  • Industrial antibiotic composition and antibacterial method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～16

[0043] As an example, the NaPT and MIT used in the above-mentioned antibacterial test are dissolved in water with different concentrations and mixing ratios, and the pH value is adjusted to about 9.4 with sodium hydroxide to make an alkaline aqueous solution, and It was added to the circulating color coating liquid (pH 9.4) which is an alkaline antibacterial target liquid. Next, the coating solution to which the aqueous liquid agent was added was stored airtight at 35° C., samples were taken at regular intervals, and cultured in a PY agar medium (pH 9), thereby measuring the concentration of the coating solution in the coating solution. bacteria count.

Embodiment 17～26

[0049] As Examples 17 to 26, instead of the circulating color coating solution of the above-mentioned examples, the alkaline aqueous solution used in the above-mentioned examples is added to the above-mentioned calcium carbonate slurry (pH value is 10.7) at a different concentration, and the above-mentioned Example same test.

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PUM

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Abstract

To provide an industrial antibacterial composition high in saftey and antibacterial force, and specially, exhibits satisfactory antibacterial force even under alkaline condition, and an antibacterial method. The industrial antibacterial composition contains sodium pyrition and 2-methyl-4-isothiazolin-3-one, and is used under an alkaline condition of pH 7 or higher. Specially, it is preferable that sodium pyrition and 2-methyl-4-isothiazolin-3-one are dissolved in water to make them an aqueous liquid agent of an alkalinity of pH 9-11.

Description

technical field [0001] The present invention relates to an industrial antibacterial composition containing at least two substances as active ingredients and an antibacterial method using the industrial antibacterial composition. Background technique [0002] In the past, 2,2-dibromo-3-nitrilopropionamide (hereinafter referred to as "DBNPA"), 1,4-bis(bromoacetoxy)-2-butene (hereinafter referred to as "BBAB") and 5 -Chloro-2-methyl-4-isothiazolin-3-one (hereinafter abbreviated as "CL-MIT") and the like as an antibacterial composition for industrial use. These substances exhibit excellent antibacterial effects under neutral to acidic conditions, but decompose significantly under alkaline conditions. [0003] On the other hand, 1,2-benzisothiazolin-3-one (hereinafter referred to as "BIT"), triazine and sodium pyrithione (hereinafter referred to as "NaPT"), which are also used as industrial antibacterial compositions It is stable under sexual conditions. However, there are the...

Claims

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Application Information

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IPC IPC(8): A01N43/72A01P1/00A01N43/40
CPCF24C3/082F24C3/14F24C15/22
Inventor 关川绫子
Owner KURITA WATER INDUSTRIES LTD
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