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Study on Dyeing of Vegetable Tanned Leather with Indigo by Li Jing; Gong Taisheng; Xu Haiyan; Chen Yangyi; Huang Shaoqing; Zhong Huafeng is a Physics and Astronomy article available to read on EtoBox.

What is Study on Dyeing of Vegetable Tanned Leather with Indigo about?

## Abstract In order to improve the dyeing fastness of indigo plant dyes for leather, save the cost of dyeing and reduce the environmental pollution in the dyeing process, the appearance quality is improved by improving the traditional indigo dyeing method. In this study, we try to use indigo acid environment to dye vegetable tanned leather to avoid the damage of basic environment to leather in the process of indigo vat dyeing. The single factor and orthogonal experiments of indigo natural dye dyeing vegetable tanned leather were carried out with the amount of iron medium, indigo dye, dyeing temperature and pre mordant dyeing time as experimental parameters, and the dyeing effect was evaluated with the K/S levels and color fastness as measurement indexes. The results showed that the concentration of iron powder was 10g / L, the pre mordant dyeing time was 25 minutes, the concentration of indigo was 16 g / L, and the dyeing temperature was 35 °C; the vegetable tanned leather after dyeing had better K/S levels, dry wet friction and tensile strength, but the light fastness needs to be further improved.

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Author

Li Jing; Gong Taisheng; Xu Haiyan; Chen Yangyi; Huang Shaoqing; Zhong Huafeng

Publisher

IOP Publishing

Published

2021

Language

EN

Field

Physics and Astronomy (Physical Sciences)