Fluorescent Brightener 220 CAS NO.16470-24-9

Formula: C40H40N12O16S4Na4 Molecular Weight: 1165 C.I. Number: 220 Appearance: yellow powder Strength: 100% Ionic character: anionic Applicatio…

Formula: C40H40N12O16S4Na4 Molecular Weight: 1165 C.I. Number: 220 Appearance: yellow powder Strength: 100% Ionic character: anionic Application: Mainly be used in whitening of cotton fabric, polyamide fabrics and pulp. And also used to increase brightness of light-colored fabrics. Property: 1.Convenient in application,diluted with water perfectly, suitable for continuous addition. 2.Good acid stability. 3.Great performance in size press and pigment coating mixtures Treating process: 1.Addition to the pigment coating mixtures: adding in any stage of building coating material. Good performance with the carrier of CMC, PVA and starch. Usual dosage: 0.1~3g/L on dry white pigment. 2..Addition to the stock: adding without dilution. Usual dosage: 0.01~0.4% on dry pulp.For actual application, the process should be adjusted according to correspondent sample-test. 3. Addition to the calico whiting. Usual dosage: 0.01~0.4%. 80~100℃dip-dye 30~40minutes.