Dyeing properties of polyamide super-microfibre with disperse dyes

Authors: Bai, Gang; Song, Xin Yuan

Source: Coloration Technology, Volume 121, Number 6, 2005 , pp. 329-331(3)

Publisher: Society of Dyers and Colourists

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Abstract:

The dyeing properties of polyamide super-microfibres and conventional fibres dyed with disperse dyes have been studied by measuring the adsorption isotherm, the rate of dye uptake, the time of half-dyeing and the amount of equilibrium adsorption. The thermodynamic analysis shows that the adsorption isotherms of super-microfibres follow a Langmuir sorption model. The kinetic results show that super-microfibres have a faster dyeing rate and a higher equilibrium dye uptake compared to conventional fibres. This can be explained by the greater surface area and dye capacity of the super-microfibres. The wash and light fastness properties of the super-microfibres dyed with disperse dyes are lower than conventional fibres. Received: 11 July 2005; Accepted: 5 October 2005.

Document Type: Regular paper

Affiliations: 1: College of Chemistry and Chemical Engineering, Donghua University, PO Box 321, 1882 West Yan'an Road, Shanghai 200051, People's Republic of China. : gbg2000@21cn.com

Publication date: 2005-01-01

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