Method of achieving novel colour effects on conventionally dyed denim fabrics or articles manufactured therefrom

摘要

The invention concerns the production of novel colour effects on denim fabrics dyed with conventional dyes, or on articles manufactured therefrom, achieving sharp contrasts with sharp (crisp) contours between partially brightened areas and areas not changed in depth of shade. These effects are achieved when the fabrics or articles are treated in the dry state with hard, porous objects which have been impregnated with oxidising agents and are then reduction cleared. To achieve further effects this may be followed by a dyeing with conventional cotton dyes.