Application of antibacterial textile in multilayer foot insoles

Abstract

Purpose of the study is to substantiate the feasibility of using antibacterial textiles in multilayer shoe insoles and to establish the influence of the conditions of its production on the complex of complementary properties that determine the antibacterial, hygienic, physical-mechanical, and operational characteristics of finished products. During the study, the developed technologies for processing cotton-polyester textile materials were implemented. The determination of consumer and operational characteristics of the developed samples of antibacterial textile materials was performed in accordance with standardized methods of textile materials science. The antimicrobial activity of the samples was determined by the method of zones of inhibition of growth of test strains of microorganisms. A comprehensive assessment of the feasibility of using antibacterial textile materials of mixed composition for the manufacture of shoe insoles and the influence of technological aspects of their modification and operating conditions on changing the properties of finished products was carried out. It was shown that the control sample of textile material (unmodified) is characterized by the highest indicators of hygroscopicity and air permeability, which provides a favorable microclimate during operation. After biocidal treatment, a decrease in these indicators is observed, however, their values remain within the limits permissible for insole materials. Physico-mechanical tests confirmed the high level of tensile strength of all samples and the absence of a critical effect of biocidal treatment on strength characteristics. The color fastness to washing, friction and sweat exposure after treatment
is somewhat reduced, but remains at a high level, which is important for products of long-term use. Microbiological studies confirmed the effectiveness of biocidal treatment against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, which proves the provision of the antibacterial effect of the proposed textile material in the composition of multilayer shoe insoles. The proposed two-layer insole design based on wool felt and antibacterial textiles, connected by an overlock seam, ensures mechanical reliability, dimensional stability, and stability of geometric parameters during shoe operation. Scientific novelty consists in forming a new type of multilayer package of textile materials for insoles, combining antibacterial textile components and natural wool felt, taking into account complementary operational and consumer properties that determine the hygienic, physical-mechanical and comfortable characteristics of the product. Practical value lies in the possibility of introducing the created insoles into the production of a wide range of footwear. The use of such a package of textile materials ensures increased hygienic properties of footwear, optimization of the internal microclimate, and increased overall comfort during prolonged use.