Effect of Canary Colouration in the Dyeing of Wool with Acid, Metal Complex and Reactive Dyes

摘要

In this study, an attempt has been made to dye the canary colour wool with acid, metal complex and reactive dyes to ascertain the effect of canary colour on dyeing and to find the suitable class of dye which will cover the deleterious effect of canary colour. Canary coloured wool yarn and white wool yarn samples were dyed with 1.5% red and blue shades with acid, metal complex and reactive dyes. The AL, Aa and Ab values showed that control canary wool yarns are 40% darker, 81% redder and 39% yellower in colour compared to white wool yarns. The AL value of dyed samples showed that there was no significant difference between canary wool and white wool samples in both red and blue shades. However, Aa and Ab values showed significant difference among the dyes. Acid dyes were good in covering canary yellowness in red colour shades where as metal complex dyes covered the canary yellowness in blue shades. The reactive dyes covered the canary yellowness in both blue and red shades. The k/s values of dyed samples showed that the dye uptake of canary wool was generally lower compared to white wool. Subjective evaluation dyed samples showed that acid dyes and reactive dyes produced bright colours on canary coloured wool compare to metal complex dyes. The fastness properties of dyed samples showed that reactive dyes dyed shades were fast in colour compared to acid dyes.