... cellulose fabrics, and to brighten light-colored cellulose fabrics.USAGE: 1. Being used in paper-making industry, add them into the ... .1-0.3% on dry pulp or dry dope. 2. When whitening of the cotton, hemp or cellulose, directly adding the fluorescent brightener ... dissolved with water into the dye vat, the dosage:0.08-0.3%, bath ratio:1:20-40 ...