Azo dyes: Synthesis, Classification and Utilisation in Textile Industry | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 67, Issue 13, December 2024, Page 87-97 PDF (735.02 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2024.257952.9057 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Esraa El-Sayed1; Eman Abd El-Aziz2; Hanan Othman3; Ahmed G. Hassabo   4
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| 1Textile Printing, Dyeing and Finishing Department, Faculty of Applied Arts, Benha University, Cairo, Egypt | ||||
| 2Benha University, Faculty of Applied Arts, Printing, Dyeing and Finishing Department, Benha, Egypt | ||||
| 3Benha, Egypt | ||||
| 4National Research Centre (NRC), Textile Research and Technology Institute (TRTI), Pre-treatment and Finishing of Cellulose-based Textiles Department (PFCTD), El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt | ||||
| Abstract | ||||
| In this work we have presented a review about azo dyes which the most important synthetic colorants which have been widely used in textile, Azo dyes are organic compounds, which contain the coloring azo function (N=N)and are used in the production of colored materials. Azo compounds have vivid colors and comprise about two-thirds of all synthetic dyes .azo dyes, such as monoazo, diazo, and triazo dyes, are defined by the presence of one or more azo groups (-N=N-) connected to the –OH or –NH2 type auxochrome groups. Then we pointed out synthesis of azo dyes using the traditional method(diazotization/coupling reaction) and preparing a new azo dye using natural polyphenols found in plants, which are used as coupling agents . Finally, we indicate Dyeing process of cotton fabric with azoic dyes as using in textile industry. | ||||
| Keywords | ||||
| Azo dyes; synthesis of azo dyes; types of azo dyes | ||||
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