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DURVESH -2b Flourescent Whitening agent for Cellulose and Polystr/ Cellulose blends Features: Versatile Product for continuous Padding and exhaust application over wide range of application temperature. (room temp-High temp.) Suitable for Hydrogen Peroxide and Sodium Hydrosulphite bleach application. Properties :
- Chemical Constitution : Stilbene Disulphonic Acid derivative
- Ionic Nature : Anionic
- Appearance : Light Yellow to Dark Yellow fine powder
- Shade : Bluish white.
Stability:
- Hydrogen Peroxide : Very good
- Hydrosulphite : Very good
- Chlorine bleach : Not stable
- Acid : Good-pH-5.5-12
- Alkalis : Very good
- Hard Water : Upto 350 ppm
- pH : 5.5-12
Fastness :
- Light : 3-4
- Washing : 4-5
Application:
- By Exhaust :
- Exhaust with Hydrogen peroxide bleach : 0.3-1.0%
- Exhaust on Bleached surface : 0.2-0.8%
- Padding :
- Padding with Hydrogen peroxide bleach : 2.0-4.0gpl
- Padding on Beached substrate : 1.0-3.0gpl
- Padding with finishing chemicals : 2.0-4.0gpl
- Recommended over wide range of application temperature (Room temperature-High Temp)
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