| 摘要 |
Bleaching of natural fibers, such as cotton, wool and silk fibers and of such fibers in blends with other types of fibers is carried out in an alkaline solution through the action of an oxygen containing gas prior, simultaneously or after bleaching with a conventional bleaching agent, such as hydrogen peroxide or sodium hypochlorite. The oxygen gas treatment can be applied in continuous or batch processes. The gas can be dissolved in the treatment liquid and the liquid be brought in intimate contact with the fibers or introduced into a treatment vessel and allowed to diffuse through a liquid layer surrounding the fibers to the reaction sites. |
