Abstract:

Innovative textile materials with insecticidal and repellent properties can be used in many areas of the textile industry (sportswear, children’s thermoactive clothing, combat uniforms, tents, sleeping bags, mosquito nets, protective clothing for foresters and hunters etc.). In this study, the chemical treatment of polyamide (PA) and polyamide-polypropylene (PA/PP) knitwear with permethrin, a third generation insecticide from influenza synthetic pyrethroids, which is toxic to insects but harmless to humans, was undertaken (Sanitized AM®23-24 preparation was used). In addition to the active substance, the bath contained a cross-linking agent (Appretan®N92111) and softening agent (Solusoft®FE). The content of active substance in the textile product after the application process was examined in dependence on the concentration of the preparation in the bath. When using the right concentration of permethrin and auxiliaries, the fabrics after washing 20 times still showed an effective concentration of insecticide.