Cream White Optical Whitening Agent , Fluorescent Brightener CAS 13001 38 2

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Optical Brightener Agent 199:1 liquid (CAS NO:13001-38-2) I Technical data: Appearance: cream white or pale yellow dispersion liquid Shade: blue Particle size: 90%2m PH value: 6-7 Density: 1.0350.02 Ionicity: nonionic II Applications: It is mainly applicable to whitening and brightening of polyester fiber and the blends, especially to whitening of polyester fiber knitting at low-temperature (95-100). III Directions for use and dosage: (only for reference) 1. Exhaust dyeing method of low-temperature absorption: Dosage: 0.3-0.7% (o.w.f) Liquor ratio: 1:10-20 Dyeing temperature: 95-100 Dyeing time: 30-40min PH value: 4.5-5.5 (adjusted with acetic acid) Procedure: add additive, acetic acid (adjusting PH: 4.5-5.5) and BC-103 FWA into the dye bath according to the formula, raise temperature to 95-100 as the rate of 2-3/min, keep constant temperature for 30-40min drop in temperature washing dehydration and drying (80-100), its whiteness can meet the users requirement. If the user has fixing machine, carry out pre-drying (80-100) and curing (170-175, 30-40s) after washing and dehydration, then whiteness will be better. 2. Pad dyeing method: Dosage: 1.5-4g/L Procedure: 2 dips 2 nips (pick up: 70%) pre-drying (100) curing and thermo-fixing (175-180, 30 seconds) 3. High-temperature and high-pressure exhaust dyeing method: Dosage: 0.2-0.5%(o.w.f) Liquor ratio: 1:10-20 Dyeing temperature: 120-130 Dyeing time: 30-60min PH value: 4.5-5.5 (adjusted with acetic acid) IV Using tips 1. If suspension liquid precipitates and separates after stored for a long period, please fully stir before use. 2. It shall be used within the yellowing spot range of this product, i.e. pad dyeing 5g/L, exhaust dyeing 0.8% (o.w.f). It will be subject to yellowing if beyond the dosage range. V Packaging and Storing: 5kg in plastic drum, 20kg/paper carton (4 drums). Quality guarantee period is 8-12 months under normal temperature.

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Shanghai Longpu Industry Co.,Ltd

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