Fluorescent Whitening Agent PF
Physical and chemical properties
|[Structural formula]|| |
|[Molecular formula]||C18H14N2O2||[Molecular Weight]||290|
|[Appearance]||Yellow crystal powder|
|[Purpose]||The product has good effect in whitening polyster fiber under low temperature.|
The liquid products made of it are widely used in printing and dyeing industry.
It has excellent fastness to light and chlorine-resistant property, lt also has good effect in whitening plastic products such as PE, PP, PS, ABC and PVC, especially under low and middle temperature(130-180℃), as well as coating, printing ink, and print.
1. Relative to weight of materials to be whitened
2. Temperature and time(30 minutes,160℃; one minute,180-190℃)
3. The product may be firstly dissolved by using plasticizer,and then grinded into suspension liquid by triple-roller mill,Uniformly add the suspension liquid to plastics which will be whitened under proper temperature(180-180℃)