METHOD FOR OPTICAL BRIGHTENING OF SYNTHETIC FIBRES OR OF SYNTHETIC FIBRES MIXED WITH NATURAL FIBRES

摘要

The present invention relates to a process for optical brightening of synthetic fibers or of synthetic fibers in a blend with natural fibers by treatment in a treatment bath to which a microemulsion was added and which as well as water comprises the components to be brightened. The microemulsion comprises nonionic surfactants, ionic surfactants, organic solubilizers and water.