UMATON BBU 250% POWDER

​

CHEMICAL CONSTITUTION        :    DERIVATIVE  OF BIS (TRIAZINYLAMINO )-  STILBENE 
                                                                 DISULPHONIC  ACID                                        
CI  BRIGHTENER  NO.                   :    220
LONIC   CHARACTER                     :    ANIONIC
ABSORPTION  MAXIMUM         :    349nm
FLUORESCENCE  MAXIMUM        
ON CELLULOSE  FIBRE                 :     448 ± 1
EXTINCTION   COEFFICIENT       :     430 ±  10
(E1 1%,  1 cm)
APPEARANCE                               :     YELLOW COLOURED SPRAY DRIED POWDER
SOLUBILITY                                      :    300 GMS / LTR.IN WATER

 

APPLICATION

IN THE MASS
UMATON  BBU 250%  is universally acceptable for brightening sized and filled papers. Its good resistance to acid and sizing reliable processing event at Low  pH. In clay filled papers UMATON BBU 250% POWDER IS highly effective at medium filter addition. It is adisable to prepare a highly dilute solution and to add it slowly to prevent mottling. Usually 0.2% to 0.3% UMATON BBU 250%    to the weight of pulp is sufficient for the whiteness but in special cases up to 1.2% of the weight of pulp can be used to get very high degree of whiteness. To obtain better whiteness we recommend that the additions should be made in the following order.

 

 IN THE PAPER SURFACE
UMATON BBU 250% is suitable for surface sizing with starch. In many cases the effect can be further  improved by adding small amounts of  carboxy  methyl cellulose to the starch solution.
Outstanding brightening effects are obtained in pigment coating compounds especially those
containing starch and bio and synthetic binders.
 

THE ABOVE RECOMMENDATION ARE BASED ON THE PRESENT STATE OF OUR
KNOWLEDGE AND BELIEF , BUT WITHOUT LIABILITY.