To fix dyes at woven fabric piecegoods, and especially dye pastes, the dyed fabric is exposed to infra red radiation in a combined drying and fixing stage to give increased resistance to color fading

摘要

To fix the dyes at a textile fabric, and especially dye pastes, they are exposed to radiation in the near infra red range at wavelengths of 0.8-1.5 mu m as a combined drying and fixing stage. The power density of the infra red radiation is /-100 kW/m<2> and particularly /-500 kW/m<2>. The process uses at least one halogen lamp, and preferably a number of longitudinal halogen lamps, with a radiation temperature of /-2900 deg K.