The professional clothing with a repellent finish becomes necessary in the modern world. It is used for foresters, geologists, rescue workers, firefighters, military, personnel of mineral exploration, drilling and gas fields, etc. Clothing with a repellent finish as prophylactic in periods of tick-borne encephalitis epidemics becomes especially relevant. The purpose of the study was to develop a technology of textile materials permanent repellent finishing by means of oppositely charged poly electrolytes. The cotton and cotton- polyester textile materials with surface density from 123 to 350 g/m2 , previously prepared for the repellent finishing, were served as a research object. The polydiallyldimethylammonium chloride (PDADMAC) and Akremony were used as a polyelectrolytes. The influence of the polyelectrolytes application sequence on the kinetics of repellent release from textile materials was investigated by means of gas chromatography. Analysis of textile materials repellent finishing technical results showed that the percentage of alfatsipermetrin on fabric, processed according to the proposed technology, remained unchanged after five washings. Thus, the resulting acaricidal effect is stable to wet treatments. The test of the costumes protective effect with inserts of processed fabric in respect ticks in the natural focus of tick-borne viral encephalitis in the Irkutsk region was carried out. On the basis of completed researches the possible technological schemes of textile materials acaricidal finishing was developed. The obtained results allow recommending the developed technology for imparting of acaricidal properties to textile materials.

Key words: acaricide, synthetic polyelectrolyte, acaricidal finishing, cellulosic textile materials

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