ES-5 Sodium Lignosulfonate Dye Dispersant

ES-5 is the mainstream grade of the Jiefa ES series, with over 90% market share in China. High milling efficiency (D50 < 0.5 μm, D90 < 1.0 μm), consistent batch viscosity and low sulfate content shorten milling time, keep spray drying even and raise first-pass yield. Heat stability ≥150 °C and excellent dispersibility at 71 °C keep finished dyes stable in storage.

• Long milling time and a wide particle size distribution
• Batch-to-batch viscosity swings: unpredictable milling, uneven atomization and wall build-up during spray drying
• High sulfate: white specks in finished dyes, moisture-induced caking, blocked filters and metering pumps
• Poor dispersibility at 71 °C: finished dyes coarsen and thicken in storage

Textile Dyestuff Industry

• High milling efficiency: D50 < 0.5 μm and D90 < 1.0 μm in less milling time, with no re-agglomeration after milling
• Consistent batch viscosity: controllable milling time, even atomization and less wall build-up during spray drying
• Low sulfate content: no white specks or caking in finished dyes, no white crystalline precipitate blocking filters or metering pumps
• Excellent dispersibility at 71 °C: stable finished dyes, suited to medium-temperature pad dyeing and thermosol dyeing
• Heat stability ≥150 °C: a higher spray-drying temperature and higher production efficiency, at a balanced cost

• Disperse dye production
• Textile dyeing
• High-temperature dyeing processes
• Bright color dye formulations