Dispersing Agent for Disperse Dye (NNO)
CAS Number: 36290-04-7
Dispersing Agent NNO (sodium naphthalene formaldehyde sulfonate condensate) is the most widely used dispersant for disperse dye milling and polyester dyeing. It maintains fine disperse dye particle size distribution in the dye bath, preventing dye agglomeration at high temperatures. Suitable for HT dyeing, thermosol processes, and disperse dye formulation manufacturing.
Technical Specifications
| appearance | Brown powder |
| ionic type | Anionic |
| moisture (%) | ≤7 |
| pH (1% solution) | 7–9 |
| active content (%) | ≥85 |
| surface tension (0.1%, mN/m) | ≤40 |
Applications
- High-temperature polyester dyeing as dye bath dispersant
- Disperse dye grinding and milling in dye formulation manufacturing
- Thermosol continuous dyeing of polyester-cotton blends
- Preventing dye agglomeration in color concentrate preparation
- Dispersant in reactive dye spray-dried powder formulation
Key Features
- Excellent dispersing and stabilizing effect for disperse dyes up to 140°C
- Low foam generation suitable for high-speed jet dyeing machines
- Compatible with nonionic leveling agents and other anionic auxiliaries
- Widely available with consistent quality for dye formulation production
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CAS Number
36290-04-7
Category
Textile Dyeing AuxiliariesAvailability
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