Optical Brightening Agent PF (C.I.135) Chemical name 1.2 di(5-mythyl-benziazolyl)ethylene Structural formula Specification Appearance: Slight yellow liquid Fluorescent Color: Slight bluish Whitening strength: 100±3( compared with standard sample) PH value 5-6 Ionic character nonionic Treating process: 1） Exhausting process: Dosage: 0.1-0.5% Bath ratio:1:10-20 Temperature: 98-100℃ Time: 30-60 mins PH value: 6-12 2) Padding process: Dosage: 1.5-3.0g/l Temperature: 180-190℃ Time: 20-30 seconds Use: It is suitable for whitening polyester, acetate fiber and blends fabric. Package: 30kg/125kg plastic drum
suitable for whitening polyester, acetate fiber and blends fabric.