Protection of lyocell against fibrillation. Part 1: Design, synthesis and application of novel crosslinking agents

Three known fibre crosslinking agents have been chemically modified in an attempt to correct technical and/or application deficiencies. The novel agents have been applied, in turn, to lyocell fibre by an exhaustion process, the wet abrasion resistance of each modified fibre measured and the results compared with Cibatex AE 4425 and with the bis‐sulphatoethylsulphone dye Remazol Black B. Agents carrying the m ‐carboxypyridinium‐1,3,5‐triazine‐2‐oxido group were not of interest as they produced pale yellow fibres due to ring opening of the pyridinium ring during alkali fixation. The best all‐round performer was 2,4‐di( p ‐ β ‐sulphatoethylsulphonyl)anilino‐1,3,5‐triazin‐2(1 H )‐one.