A Rapid Method for Assessing the Migration Ability of Acaricidal Repellent Substances when Released from Microcapsules
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pid Method for Assessing the Migration Ability of Acaricidal Repellent Substances when Released from Microcapsules A. A. Lipinaa,*, S. N. Khakhinb, O. I. Odintsovaa, E. L. Vladimirtsevaa, and E. O. Avakovaa a Ivanovo
State University of Chemical Technology, Ivanovo, 153000 Russia Open Joint-Stock Company, Ivanovo, 153021 Russia *e-mail: [email protected]
b Ivkhimprom,
Received October 5, 2018; revised September 7, 2020; accepted September 17, 2020
Abstract—A rapid method was proposed for assessing the migration ability of microencapsulated acaricidal repellent substances applied to a textile material. In this method, a colorless active substance was replaced by neutral fat-soluble dye Sudan IV. The effect of the concentration and charge density of cationic synthetic polyelectrolytes and of their immobilization method on the intensity of the dye release from textile material was evaluated. Keywords: acaricidal repellent substances, synthetic polyelectrolyte, acaricidal finishing, cellulosic textiles, microencapsulation
DOI: 10.1134/S1070363220090315 High incidence of natural focal infectious diseases among human population, caused by blood-sucking insects (encephalitis, borreliosis, malaria, etc.), are a cause of concern to Russian health authorities. This situation has arisen due to changes in people’s behaviors and living conditions, as well as to inadequate epidemiological surveillance. According to the Press Service of the Regional Office of Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing in the Ivanovo Oblast, only during the first month of the epidemic season-2017, 187 Ivanovo Oblast citizens, including 69 children, sought medical help after being bitten by a tick [1]. Vaccination of the population remains the main method of preventing infectious diseases in the Russian Federation. However, it is insufficiently effective because of a complex scheme (two- and three-component), high probability of allergic reactions, and specific action of the vaccine in people with weakened immunity. Mass acaricidal treatment of the territories of parks and forests may inflict serious damage to the environment due to toxicity of the agents used [2]. Foreign countries, including not only developed European and American states but also Asia, widely apply a variety of products, clothings, and headwear made of textile materials with special biocidal and repellent properties for protecting the population against insectborne diseases. In the Russian Federation such items are
also manufactured, but mostly based on foreign fabrics and reagents, and thus are priced out of reach for the majority of the population [3]. Therefore, development of Russian textile materials for making protective clothing at affordable prices is an extremely urgent task. The Department of Chemical Technology of Fibrous Materials, Ivanovo State University of Chemical Technology, has developed an acaricidal repellent finishing technology based on the use of the active substance comprised of a 1 : 1 molar mixture of cy
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