Optical Brightening Agent 357

Optical Brightening Agent C.I.357 YPM

Formula：C40H38N12Na6O18S6

Specification：

Property：

1. Mainly used for the whitening of coating and surface sizing, to produce high whiteness paper, performance best in whitening effect .

2. Good resistance to acid, better whitening effect in stronger acidity..

3. Miscible with water in any proportion, can be continuous metered and feed easily.

4. Strong light stability and resistance to alkali.

5. Better effect under value 1-13.

Application：

Mainly used for the whitening of cotton fiber, viscose, coating, clay and surface sizing.

Treating process:

1. In the coating process, it can be added at any position, usual dosage: 0.2%-2.0% (the weight of dried coating).

2. Better whitening effect, it can be used together with surface sizing and PVA, usual dosage: 7-15Kg/T of the paper or 13-28g/L of the surface sizing

3. For clay whitening usual dosage: 1-3Kg/T of the dried clay

Packing & Storage

According your requirement.(IBC or Flexitank)

Store at shady & cool, dry ventilate place