DDVP樹脂蒸散防虫剤の金属・顔料・染料に及ぼす影響(薬剤)
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概要
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The effects of Dichlorvos (DDVP) vapour on metals, pigments, and dyestuffs used in antiques and art crafts were examined for fear of such harmful results to them as change of color, fading, tarnish, and rust, in case of utilizing the Dichlorvos Resin Strip (Dichlorvos Dispenser) against damaging insects to cultural properties. The results of experiments conducted within half an year on the three series of concentrations, the standard (one Strip/5m^3, size 25cm, wt. 120g, containing 16% Dichlorvos), 5 times, and more than 1,000 times, are as follows: (1) On metals. The Dichlorvos vapour had little, if any, effect on Au, Zn, Sn, Pb, Al, Sb, and stainless steel (Cr 18/8 Ni), but somewhat on Ag, Cu, and Fe, when the surfaces of examined metals had been ground and polished. In conclusion, the Resin Strip, if used only in as much as or less than the standard concentration, could occasionally be utilized for controlling insects without any harmful effect on the properties, because metals used in them have been oxidized in air for a long time and covered safely with various oxides. (2) On pigments. The Dichlorvos vapour within 3 times as much as the standard concentration had no effect even on powder materials of various pigments apt to react upon chemical substances, not to mention on colors mixed with oil or gelatine solution, but more or less effects on copper compounds in the concentration of more than 1,000 times, which is never adopted for practical application. (3) On dyestuffs. The Dichlorvos vapour in the standard concentration had no effect on textile fabrics dyed with botanical dyestuffs, but in case of 3 times the concentration for a month, brought a slight fading on some fabrics not long after dyed. In the author's opinion, the Resin Strip might safely be used in the standard concentration to botanical dyestuffs but for keeping them close by the Resin Strip, for the dyestuffs of old fabrics have been kept long in air and faded already to some extent.
- 日本家屋害虫学会の論文
- 1980-06-30
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