Laundry Detergent Optical Brightener 71 CXT DMS CAS 16090 - 02 - 1 Optical Brightener Powder For Soap Making and For Detergent Powder Production Line,For Laundry Detergent Making For Washing Powder Soap Making, synthetic washing powder, soap, toilet soap, etc. Brightener CXT can make the appearance of soap and washing powder white and bleaching. For example, CXT was added into washing powder according to achieve the whitening effect of washing clothes, or just make the detergent looks crystal clear. Fluorescent brightener CXT is used for whitening cotton fiber, nylon and other fabrics. It has excellent whitening effect on man-made fibers, polyamide and vinylon.