Optimization of Dyeing Conditions of Wool FIbers with Madder Dyes and Aluminum Sulfate Mordant Based on Taguchi's Experiments

Document Type : Research/ Original/ Regular Article

Authors

1 Young Researchers Club, Kashan Branch, Islamic Azad University

2 Institute for Color Science and Technology

Abstract

The dyeing of wool fibres with Madder dyes and aluminum sulfate mordents has been investigated. To optimize the dyeing process for achieving a favorable method, first the Taguchi's experiments design and then single factor experiments were used. The selected parameters in the dyeing of wool fibres were: temperature, time, L:G, dyeing bath type, pH and auxiliary agents. In these experiments the selection criterion of optimized dyeing method was to achieve high color strength, appropriate leveling and fastness properties which were studied by spectrophotometry and visual examinations. The results showed that the optimum conditions for dyeing are as follows: temperature: boiling, time: 2 h, pH: 4-5, clay bath and L: G=30:1.

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