Detailed Product Description
Product Description in Detail: Main ingredient: Triazinyl derivative of stilbene Specifications: Appearance light yellow-green powder Shade violet Characteristics: High whiteness and brightness, suitable for ambient-temperature dyeing Application: for brightening of bleached cotton or light-colored fabrics; also used as whitener in paper and detergent Fastness: Light 4-5; soaping 5-6. Stable in acid and alkali Usage: Exhaust dyeing method (for cotton) Rate of use: 0.1-0.2%(o.w.f),sodium sulfate 6-10%(o.w.f),bath ratio: 1: 20-1: 40,pH: 7-9,dyeing temperature: 20-40oC, 20-30 min; drying temperature: 70-80oC Pad-dyeing method (one-bath two-pad) Rate of use: 0.5-3g/L,nekal 0.25-0.5g/L,pH 7-9,temperature 40-45oC,speed: 30-40M/min Note: Scouring, dechlorination and drying are required before dyeing Paper whitening Rate of use is 0.2-0.5% for pulp Sizing/whitening Rate of use is 1-2g/L for size. Process: bath, pad, drying, calendering Soaping/whitening Bleached or printed towel can be whitened by VBL during soaping Brightening of white-background printed cloth Rate of use: 1-2g/L Brightening of light-colored fabrics Light-colored fabrics can be brightened by VBL during the later stages of finishing Whitener in detergent: Rate of use: 0.1-0.5% Packaging & Storage Paper drum, N.W.: 25kg or 50kg. Store in a cool dry place
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