Optical Brightener SWN, fluorescent whitening agent SWN,CAS NO.:91-44-1/61968-71-6,widely used for whitening wool, natural silk, whitening nylon, acetate fiber, triacetate fiber. Optical Brightener SWN can also be used for cotton, cellulose fiber, acrylic fiber whitening, especially for cotton textiles whitening, can effectively improve cotton appearance whiteness.Optical Brightener SWN can also be used to whiten soap and washing powder, and can be added into synthetic washing powder to wash fabric to improve the appearance whiteness of washed fabric.
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