Comparison of the resist effectiveness and leveling character of alpha-bromoacrylamide based and 2,4-dichloro-s-triazine based dye-resist agents for wool

摘要

Three dye-resists based on alpha-bromoacrylamide and three dye-resists based on dichlorotriazine were synthesized and their effectiveness and leveling properties were compared on wool.In general,the dichlorotriazine based dye-resist agents displayed higher resist effectiveness than their alpha-bromoacrylamide counterparts.However,the dye-resists based on alpha-bromoacrylamide exhibited better leveling properties than those based on dichlorotriazine.The resist effectiveness was significantly improved by increasing the number of sulphonate group in the dye-resist agents and the hydrophilic character of anionic dyes applied over them.