VINABRITE ESR

(WHITEING AGENT FOR POLYESTER AND ITS BLENDS)

TECHNICAL DATA

CHEMICAL STRUCTURE: Benzoxazol Derivative
VINABRITE ESR gives red violet shade after dyeing, and has characterstices as follows:
1. VINABRITE ESR is very suitable for exhaustion process.(Dipping process and one bath process, and gives good whiteness in pad-bake process even at 150°C).
2. In all applications. VINABRITE ESR has good stability to reduetants, Peroxide and chlorite.
3. Good leveling effects on fabrics and excellent fastness to light.
4. If the discharge process, VINABRITE ESR is not stable to SnCl2 or kindred catalysts.
5. The best condition is “185°C X 30sec” in case of bad-bake process.

APPLICATION

1. Atmosphieric exhaustion process in jigger, wince.
100% Polyester
0.1-0.2%             owf           VINABRITE ESR
0.5                      G/L           nonionic Surfactant
0.1                       owf           Carrier( Trichlorobenzene type)
P.H 4.5                                 Acetic Acid
Boil for 30min.
Polyester Blends
0.1-0.2%              owf           VINABRITE ESR
0.25                     G/L            nonionic Surfactant
4-8%                   owf            hydrogen peroxide(50%wt)
4-8%                   owf            water glass (sodium Silicate) or hydrogen
                                               peroxide stablizer
P.H 10.8 ± 0.2                         Sodium carbonate
Boil for 50min.
2. High temp. exhaustion process in jet, circular and other machine.
1.Scouring and Bleaching step
0.05-0.1%             owf             VINABRITE ESR
0.25                       G/L             nonionic or anionic scouring agent
2-3%                     owf             water galss (sodium silicate)
P.H 10.8 ±0.2                            Sodium carbonate
4-8%                     owf             Hydrogen peroxide
Boil for 30min.
3. Optical Whitening step
0.1-0.9%                owf            VINABRITE ESR
Upto P.H neutral                      acetic acid
Keep the bath 130°C for 30min.
Light Fastness 4