Optical brightener BA 267%

Chemical name Stilbene derivative Structural formula Specification Appearance: Yellow powder Fluorescent Color: Similar to the standard sample Whitening strength: 100±3( compared with standard sample) Moisture: ≤6% Ionic character anionic Treating process: 1.exhausting whitening process: BA: 0.05-0.3% (o.w.f.), bath ratio: 1:5-30, dyeing temperature: 40°C -100°C; Na2SO4:0-10g/l.,start temperature :30°C , heating rate:1-2°C /min, keep the temperature at 50-100℃ for 20-40min, then lower to 50-30°C --> wash--> dry( 100°C ) --> setting (120°C -150°C )×1-2 min( add proper amount leveling agent according to the leveling effect). 2. Padding Process: BA:0.5-3g/l, residue liquor ratio:100%, one dip and nip --> dry( 100°C ) -->setting (120°C -150°C )×1-2 min Use: Mainly be used as brightener of cotton, linen, silk, polyamide fiber ,wool and paper. Package: It is packed in 20Kgs paper board bucket..It can be packed according to the requirement of the user.