Abstract
Dyeing conditions and wash fastness properties of “Chemical Colour” and “Milling Colour” (commercial Procion M type reactive dyes for craft dyeing) were investigated.
The results obtained are summarised as follows :
(1) Relative purity of these commercial dyes were estimated ca. 20-30% of corresponding industrial products.
(2) The most appropriate dye concentration was found ca. 15-20% o. w. f. from both colour fixation and dyeing depth point of view.
(3) Bleeding prevention during brush printing proved to be effective by the addition of 1 % sodium alginate to the solutions.
(4) Wash fastness of the dyeings of both “Chemical Colour” and “Milling Colour” was excellent under the conditions applied.
