Powder Fluorescent Brightener VBL

C. I. No. : 85 # Molecular Weight: 872.84 Specifications: A. Appearance: Light yellow uniform powder B. Strength: standard 100% ± 2 C. Moisture: ≤5% D. Fineness: (150 aperture through sieve residue content) ≤5% E. Water-insoluble impurities: ≤0.5% Features: A. Ingredients: stilbene triazine type derivatives. B. Shade: Hue blue-violet light. C. 80 times more than can be dissolved in soft water, hard water to 300ppm. D. An anionic, acid resistance, with anionic or nonionic surfactants with bath. E. Intolerance copper, iron and other heavy metals, unsuitable for cationic dye surfactant bathing. Scope: A. For cotton, polyester-cotton fabric whitening. B. Cellulosic fiber textile discharge printing white, whitening. C. Colored cellulose fiber fabric brightening. D. Paper and detergent whitening. E. and fiber bonding well, better than VBL whitening power. Usage: 1. When fluorescent whitening in the pulp, VBL new applications before alum or cationic additives added, should not be used simultaneously. Dosage: VBL New to absolute dry pulp weight of 0.05 to 0.3%. 2. When fluorescent whitening during surface sizing, it is capable of CMC, PVA, starch and anionic or weak-cationic synthetic sizing agents used together. 3. When fluorescent whitening during coating, may be in the form of a solution at any stage of the preparation of the coating feature. Conventional dosage: absolutely dry pigment weight 0.05 to 0.3%. Packaging and storage: 25kg / drum in a cool, dry place away from light.