On the features of dyeing textile materials with polyurethane fibers

The article presents studies of the extensibility and elasticity of polyurethane threads after heat treatment, which take place in the processes of finishing and dyeing of textile materials, in order to determine the "safe" temperature range. The mode and formula of dyeing polyester - cotton fabric containing polyurethane in a continuous way have been developed. For the first time, to reduce the temperature of thermal insulation, it was proposed to introduce Triclosan into the dye bath, which shows not only an intensifying effect, but also gives the fabric antibacterial properties. The required indicators of coloristic properties and color stability were obtained without reducing the stretchability and elasticity of the fabric with a decrease in the dye fixation temperature from 215 to 190 °C.