The Effect of the Composition of the Dye Solution on the Choosability of Direct Dye by Textile Materials

The purpose of the work was to study the effect of the composition of the dye solution on the choosability of the dye and the quality indicators of the resulting coloring when dyeing textile materials of various nature with a direct dye.

Methods. The dyeing process was carried out using a direct scarlet light-strong dye. Textile materials of various natures were dyed: natural (cotton), artificial (viscose) and mixed (caproacetate). Dyeing was carried out using dye solutions according to the classical recipe of dyeing with direct dyes and using electroplating as additives.

The experiment was carried out in a kinetic version, where samples were taken at certain intervals during the process to analyze the dye content. The quantitative content of the dye in the working solution was monitored using a spectrophotometer of the PE-5400V type using the spectrophotometry method.

The work was carried out using aqueous dye solutions, in which distilled water obtained using an electric DEM 10 distiller acted as a medium. The process temperature was maintained using the UT-4300E ultrathermostat.

Results. Graphic and kinetic dependences of the content and selectivity of the direct scarlet light-resistant dye by various textile materials are obtained.

The conducted studies allow us to assert that the process of dyeing with a direct dye of cotton, viscose and caproacetate can be carried out in the presence of galvanic production waste. The dependence of the saturation and stability of the coloring obtained by dyeing textile materials of various nature in the presence of electroplating as an additive to physical and chemical influences has been established. Everywhere there is an increase in the color resistance to washing, dry and wet ironing and friction.

Conclusion. It has been revealed that the introduction of galvanic production waste into the dye solution has a positive effect not only on the choosability of direct dye by textile materials of various nature, but also on the resistance of coloring to various physical and chemical influences, namely: soap and soda treatments, dry and wet ironing and friction.

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