COMPOSITION OF CARBOHYDRATES IN FRESH WHEY — Proceeding R-1

Abstract

Kinetic analysis of the dyeing process of multi-component textile yarn with a basic dye was performed in this article. The yarn consists of multiple components, specifically three different fibers, with the highest proportion being modal, followed by cotton, and the least being polyamide. Dyeing of the yarn was carried out using a discontinuous method, with the appropriate initial dye concentration and different dyeing times. The aim is to elucidate the dynamic events during the adsorption of dye molecules onto the fibers and their diffusion into the interior. Two kinetic reaction models (Pseudo-first-order and Avrami) and one kinetic diffusion model (Weber-Morris) were used to test the experimental data from the dyeing process. Dyeing multi-component yarn yields satisfactory results, with even coloration of the yarn. The degree of dye exhaustion and the amount of dye on the fibers increase with time, while the initial dye concentration in the solution decreases as the dyeing process progresses. In the linear simulation of the kinetic dyeing parameters, the Avrami reaction model proves to be efficient, while the Weber-Morris model is found to be a very favorable diffusion equation.

Keywords: yarn, basic dye, dyeing, kinetic models

Acknowledgment

This research was supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (The record number: 451-03-137/2025- 03/200133).

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