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Highly stable aqueous dispersion with excellent shelf life under standard storage conditions.
Superior lightfastness and wet fastness on polyamide and wool substrates.
Optimized for low-salt, eco-friendly acid dyeing processes compliant with ZDHC MRSL v3.1.
Consistent batch-to-batch color strength and hue reproducibility.
Low foaming behavior enabling reliable performance in high-speed jet and beam dyeing equipment.
Dyeing of nylon 6 and nylon 6.6 textiles in apparel and technical fabrics.
Coloration of wool and wool-blend knits and wovens for premium fashion and upholstery.
Shade formulation in combination with other Duasyn Acid dyes for expanded color gamut.
Industrial dyeing of carpet yarns and automotive interior textiles requiring high wash and rub fastness.
| Chemical Type | Sulfonated monoazo acid dye |
| Product Form | Ready-to-use aqueous liquid concentrate |
| Appearance | Clear to slightly opalescent blue liquid |
| Concentration (as dye) | Approx. 30% w/w |
| pH (10% aqueous solution) | 4.0 – 5.0 |
| Density (20°C) | 1.12 – 1.16 g/cm³ |
| Primary Applications | Polyamide and wool dyeing |
| Key Features | High migration, level dyeing, excellent reproducibility |
Q1: What is the primary application field for Duasyn Acid Blue AE-SF 30 liquid pigment?
A: This liquid acid dye is primarily used for dyeing polyamide (nylon) fibers and textiles, especially in high-speed jet dyeing and beam dyeing processes where uniformity, levelness, and reproducibility are critical.
Q2: Is Duasyn Acid Blue AE-SF 30 compatible with common auxiliary chemicals used in acid dyeing baths?
A: Yes — it demonstrates good compatibility with standard leveling agents, sequestering agents, and pH buffers typically employed in acidic dyeing systems (pH 4–6), and shows minimal interaction with common anionic or nonionic auxiliaries under recommended process conditions.
Q3: How should this liquid pigment be stored to maintain stability and performance?
A: Store in original sealed containers at temperatures between 5 °C and 30 °C, protected from direct sunlight and frost. Avoid prolonged exposure to elevated temperatures or freezing, as these may affect viscosity, dispersion stability, or color strength over time.
Q4: Can Duasyn Acid Blue AE-SF 30 be used in combination with other acid dyes for shade matching?
A: Yes — it is formulated for excellent compatibility with a broad range of Clariant and third-party acid dyes, enabling flexible and predictable shade building without significant risk of dye aggregation or uneven exhaustion.
Q5: What is the typical dosage range when using this liquid pigment in nylon dyeing?
A: Dosage depends on the desired depth of shade and substrate characteristics, but it is generally used at low concentrations — typically ranging from 0.1% to 2% on weight of fiber (owf) — with precise optimization recommended through lab trials.
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