Optical Brightener HPE

Main Chemical Composition: Stilbene bistriazine derivative
C.I. No. 220
Specification: Appearance: brown liquid
Viscosity:≤80 mpas
pH value: 7.0-9.5
density: 1.1~1.2g/cm³

Property: 1.Convenient in application, diluted with water perfectly, suitable for continuous addition.
    2.Good acid stability
    3.Great performance in size press and pigment coating mixtures

Application: Mainly be used in size press, pigment coating mixtures.

Process:
    1. Addition via size press: combined with starch, CMC, PVA and other products designed for surface sizing. Usual dosage: 0.5-10g/l
    2. Addition to the pigment coating mixtures: adding in any stage of building coating material. Good performance with the carrier of CMC, PVA and starch. Usual dosage: 0.1-1.4% on dry white pigment.
    3. Addition to the stock: adding without dilution. Usual dosage: 0.05-1.2% on dry pulp. For actual application, the process should be adjusted according to correspondent sample-test.

Package: 220kg, 1000kg or for the special demand.