Research of physical and mechanical properties of knitted fabrics of plush interlooping with reduced material consumption

The article discusses methods for manufacturing lined weave plush knitwear and ways to reduce the material intensity of knitted fabrics. The purpose of the study is to reduce the material consumption of products while maintaining operational, hygienic and aesthetic properties in the production of knitted fabrics. As a result of experimental work, the technological capabilities of the KН-323D flat knitting machine were studied and new types of lined weave plush knitwear were developed. Comparing the bulk density of plush knitwear with elongated lining broaches with the main base weave, it is clear that the presence of elongated lining broaches in the knitwear structure increases the thickness of the knitwear and reduces the bulk density. The breathability of a lined weave plush jersey is significantly less than that of a basic weave. It has been established that air permeability coefficients can be reduced to 33.1% (46.3-66.9 cm3/cm2∙sec) by adjusting the length of the threads of the lining broaches of plush knitted fabric of lined weave. Regression equations are derived to determine the dependence of bulk density, breaking load (along the length and width) and the air permeability index of knitted fabric on technological factors. Mathematical models were built in Excel using regression equations. The research results make it possible to improve the quality and consumer properties of knitted products, and to select advanced production technologies for their production.