Protection of lyocell fibres against fibrillation; influence of dyeing with bis‐monochloro‐s‐triazinyl reactive dyes

Four bis‐monochlorotriazinyl (bis‐MCT) reactive dyes, including Procion Orange H‐ER, together with Remazol Black B, were applied, in turn, to lyocell fibres and their wet abrasion resistance (Nass‐Scheuer‐Festigkeit) measured. The bis‐MCT dyes performed poorly, showing that little cross‐linking had occurred and all were inferior to Remazol Black B. The cross‐linking propensity of Procion Orange H‐ER was not superior to the other bis‐MCT dyes evaluated. A possible explanation for the apparent superiority of Procion Orange H‐ER in a recent paper published in this journal may lie with fabric construction but not with the suppression of fibrillation once it has occurred.