| Product Information |
Sarawhite (Conc) is a high affinity optical brightener for cellulosic fibres and their blends. Due to it's high affinity Sarawhite (Conc) is recommended by exhaust application only. Sarawhite (Conc) is stable to peroxide as well as reductive bleach liquors. Hence combined bleaching and optical brightening can be carried out. Sarawhite (Conc) is stable to pH 5-13. Sarawhite (Conc) can also be applied for wool, silk and nylon. |
| Key Features & Benefits |
Key Features Benefits
------------ --------
Neutral white Required tone easily adjusted
Concentrated form Lower dosage and economical
High affinity Excellent exhaustion
Good stability to Combined bleaching and optical
peroxide & reducing agent brightening possible
|
| General Characteristics |
Physical appearance : Greenish yellow powder
Ionic nature : Anionic
pH of 1% solution : 9 +/- 1
Miscibility : Soluble in warm water. Solution must not
be exposed to light.
Compatibility : Compatible with anionic and non-ionic
products.
Stability : Unstable to dilute acids but stable to
dilute alkalies, hard water, hydrogen
peroxide and reducing agents.
|
| Application |
1. Cotton
0.1-0.15% Sarawhite (Conc)
pH 6-10, temperature 50-60 deg.C, treat for 20-30 min.
2. Viscose and Modal
0.1-0.3% Sarawhite (Conc)
3-5 g/l Glauber's salt
pH 6-10, temperature 50-60 deg.C, treat for 20-30 min.
3. Wool, silk & nylon
0.1-0.5% Sarawhite (Conc)
2-4 g/l Sodium hydrosulphite
Treat at 50 deg.C for 45-60 min.
|
| Instructions For Dilution |
Add gradually 10 parts of Sarawhite (Conc) to DM water, at 95 deg.C, pH adjusted to 9-9.5 using soda ash with constant stirring. Turbo stirrer with 2000-3000 rpm can be used for stirring. Stir further for 30-60 mins after addition is complete. Cool, adjust pH to 9-9.5 if required and filter through nylon filter cloth of 200-250 mesh size. Discard residues if any. Store diluted solution of Sarawhite (Conc) away from light. |
| Precautions |
Storage Store in cool, ventilated shed away from heat and direct sunlight. Storage temperature should not exceed 35 deg C. Close lids firmly to avoid contact with air and moisture. Shelf Life 6 months from the date of manufacturing, if stored under controlled conditions. |
| [The above information is given in good faith and is without warranty] |