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