| Title: |
Kinetic Investigation of Dyeing Polyamide Fabrics with Acid Dyestuff in Microwave and Conventional Heating Media |
| Authors: |
Raşit Dağlı; Murat Teker; Ayşe Usluoğlu |
| Source: |
Processes ; Volume 14 ; Issue 6 ; Pages: 992 |
| Publisher Information: |
Multidisciplinary Digital Publishing Institute |
| Publication Year: |
2026 |
| Collection: |
MDPI Open Access Publishing |
| Subject Terms: |
polyamide; microwave; acid dyes; kinetic parameters; Arrhenius constant; activation energy |
| Subject Geographic: |
agris |
| Description: |
In this study, the dyeing kinetics of polyamide fabrics with acid dyes, such as Telon Blue M2R, under both conventional and microwave-assisted heating conditions were comprehensively investigated. While the conventional dyeing reaction was completed in 30 min, microwave-assisted dyeing was performed in the microwave device for 10 min. Dyeing kinetics were investigated as a function of reaction time, reaction concentration and dyeing temperatures. The K/S values (color depth) of the dyed fabrics were correlated with the concentration. A significant reduction in the dyeing process time for polyamide fabric was observed with microwave heating compared to the conventional method. Kinetic analysis revealed that the Pseudo-Second-Order (PSO) kinetic model provides a better fit to the experimental data on the diffusion process of acid dye in polyamide fabrics, as evidenced by higher correlation coefficients (R2) compared to the Pseudo-First-Order (PFO) model. The activation energy of the reaction in dyeing was found to be 63.27 kJ/mol, and the Arrhenius constant was determined as 7.20 × 1010 L/g·min in conventional media and 18.70 × 1010 L/g·min in microwave media. The Arrhenius factor in the microwave medium was more than two times higher than in the conventional media. |
| Document Type: |
text |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
Materials Processes; https://dx.doi.org/10.3390/pr14060992 |
| DOI: |
10.3390/pr14060992 |
| Availability: |
https://doi.org/10.3390/pr14060992 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.AB7726E2 |
| Database: |
BASE |