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Studies on the mothproofing of woolen fabrics -Application of synthetic pyrethroids as insectresist agents-

毛织物防蛀研究-合成拟除虫菊酯作为防虫剂的应用-

基本信息

批准号：
62480442
负责人：
TSUJII Yasuko
金额：
$ 4.42万
依托单位：
Depertment of clothing science,faculyty of home economics, Nara Women s University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

项目摘要

The synthetic pyrethroids, which have low toxicity to mammals, have recently been used as insectproofing agents applied to wool. In this work, we investigated the mortality of insect larvae, the amount of feeding damage, and the adsorption on fabric by laboratory-scale applications of the synthetic pyrethroids to wool fabric.Quantitative measurements of adsorption were carried out by high-performance liquid chromatography(HPLC) and gas chromatography(GC) applying the headspace technique. The insect larvae used were tinea pellionella, Attagenus unicolor japonica and Anthrenus verbasci.The results obtained were as follows: 1) By treatment of wool with 0.03-0.06% 0.w.f. pyrethroid, all of Tinea pellionera died within 3 days at 20゜C and 65% RH. This treatment protected wool against carpet beetle larvae attack during 6 months, but the mortality was small. 2) The results from biological assay by means of film test and topical application suggested that the pyrethroids act contact insecticides rather than stomach poison. 3) The amount of pyrethroid adsorded on wool was examined using four kinds of synthetic pyrethroid, i.e., Fenpropathrin, d-Cyphenothrin, Permethrin and Fenvalerate, which are expected as industrial trials. The amount adsorded was saturated within 15 hr and the adsorption isotherms corresponded to the Freundlich type. The affinity increased with increasing the number of carbon atoms, whereas the existence of chlorine having polarity reduced the affinity.Fenpropathrin, d-Cyphenothrin and Permethrin had high insectproofing performance, and can be recommended as industrial insectproofes.

合成拟除虫菊酯对哺乳动物毒性低，最近已被用作羊毛的防虫剂。本文通过在羊毛织物上应用拟除虫菊酯类杀虫剂，研究了其对羊毛织物上昆虫幼虫的死亡率、取食损伤量和织物的吸附作用，并采用顶空技术，采用高效液相色谱（HPLC）和气相色谱（GC）对吸附作用进行了定量测定。用0.03- 0.06%0.w.f.处理羊毛，用0.03- 0.06%0.w.f.在20 ℃和65%RH条件下，所有的拟除虫菊酯都在3天内死亡。这种处理在6个月内保护羊毛免受地毯甲虫幼虫的攻击，但死亡率很小。2)药膜法和局部施药法的生物测定结果表明，拟除虫菊酯的作用是触杀，而不是胃毒。3)用四种拟除虫菊酯，甲氰菊酯、右旋苯氰菊酯、氯菊酯和氰戊菊酯，预计将作为工业试验。吸附量在15小时内达到饱和，吸附等温线符合Freundlich型。亲合力随碳原子数的增加而增加，而极性氯的存在使亲合力降低，甲氰菊酯、右旋苯氰菊酯和二氯苯菊酯具有较好的防虫性能，可推荐作为工业防虫剂。