Tea dyes and nano-level dyes are soft, non-toxic, harmless, and have good compatibility with the environment. There have been many research reports on the technology of dyeing tea dyes and nano-level dyes on different fabrics. However, the low color yield and poor color fastness of tea dyes and nano-scale coatings need to be further resolved. Therefore, studying the relationship between the tea dye colors of different fabrics and nano-level dyes is of great significance to China's clothing dye industry. This work studied the dyeing process of tea dyes and nano-dye on wool fabrics, including the type of mordant, the order of mordant, and the effect of tannin as a speed enhancer on dye performance and dye stability. This paper further studied the effects of pre-mordanting and adding tannins on the color yield and color fastness of mulberry red, water-soluble turmeric and gardenia blue. In this paper, the factors affecting the direct dyeing of tea dyes and nano-level dyes on chitosan fibers were tested, and the optimal dyeing process conditions were obtained. The color fastness of tea dyes and nano-level dyes on glycan fibers was tested. This article explores the mechanism of the dye accelerator in the normal pressure boiling dyeing of polyester. It is concluded that the dye accelerator can increase the solubility of refined disperse dyes, reduce the glass transition temperature, melting temperature and crystallinity of polyester, and then significantly improve the dyeing performance of polyester. Moreover, the dye accelerator has no adverse effect on the main structure, strength and heat resistance of polyester, but it will reduce the dispersion stability of disperse dyes to a certain extent. Experimental studies have shown that when tea is used for dyeing, the dyeing process is basically balanced after 150 minutes. When dyeing with nano-stain, the dyeing process is basically balanced after 80 minutes.

Homan Ashari Bavarsad. Relationship between Tea Dyeing Color of Different Fabrics and Nano-Dye. International Journal of Art Innovation and Development (2022), Vol. 3, Issue 3: 62-74. https://doi.org/10.38007/IJAID.2022.030305.

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