OPTICAL BRIGHTNERS

 

OBAs for Paper Industry

NORDAWHITE Series

BA

BBU

BSU

SCP

C.I. No.

113

220

264

357

Appearance

Light Brown Liquid

Light Brown Liquid

Light Brown Liquid

Light Brown Liquid

Chemical Consitution

Di-sulphonic

Tetra-sulphonic

Hexa-sulphonic

Hexa-sulphonic

Shade

Bluish

Bluish

Bluish

Bluish

pH Range

4-12

3-12

1-12

1-12

Ionic Character

Anionic

Anionic

Anionic

Anionic

Application : Wet End

YES

YES

NO

NO

Size Press

YES

YES

YES

YES

Coating

NO

YES

YES

YES

NordaChem’s   OPTICAL BRIGHTENING AGENTS - OBA's, 
                 broadly used in the
Pulp and Paper. The present range  
                 consists of OBA 113, 220, 264 and 357 with Powder and 
                 Liquid form, chemically known by C.I. generic names. 
                These are generally similar to European Brands, such as 
                Tinopal of CIBA, BLANKOPHOR of Kemira,, 
                 LEUCOPHOR of CLARIANT and Optiblanc of 3V.

 

Nordawhite BA is Brilliant, highly substantive, di-sulphobnated stilbene optical 
                      brighteners,
Added at the wet-end, these products give very good build up 
                      even at low concentrations : very good stability to hard and soft water and 
                      alkaline conditions and are compatible with most anionic   and non-ionic 
                      products. Can be used continuously or batchwise. They are generally the  
                      most effective OBAs for use in wood-containing grades such as improved 
                      newsprint, super calendered and speciality groundwood papers.

 

Nordawhite BBU is Brilliant, neutral shade tetra-sulphonated stilbene optical 
                     brightener for use
in the stock in sized and unsized paper, at the size press 
                     or in coating formulations. Good substantivity to bleached pulps, very good 
                     compatibility with commercial starches and good stability to acids and  
                     alkalis. Can be used continuously or batchwise.

 

Nordawhite BSU / SCP is Brilllinat, high-white hexa-sulphonated stilbene 
                    optical brightener 
with a slightly red hue for use at the size press or in 
               coating formulations particularly those containing starch, CMC or 
               PVOH. Very good stability to acid, alkali and hard water, compatible 
               with most anionic and non-ionic products. Can be used contiuously or 
               batchwise.


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