Indigo Blue Vat Blue is a premium-grade synthetic organic pigment, renowned for its deep, rich blue hue and exceptional stability. As a dark blue crystalline powder with the chemical formula C16H10N2O2, it serves as the gold standard for the global textile industry, offering unmatched coloring power and consistency for high-end fabric production.
Primarily engineered for the denim industry, this vat dye is indispensable for producing authentic blue jeans, providing the necessary chemical properties to achieve professional stone-washing and acid-washing effects. Beyond denim, its versatility extends to the precision dyeing of wool and silk, ensuring a high-quality finish that meets stringent international textile standards.
Detailed Parameters
| Appearance | Dark blue even grains | Purity | ≥94% |
|---|---|---|---|
| Water Content | ≤1% | Iron Ion Content | ≤200ppm |
| Chemical Formula | C16H10N2O2 | Sublimation Point | 390–392 °C |
| Solubility (Water) | Insoluble | Solubility (DMSO) | Soluble |
| Validity Period | Two years | Storage Temp | Below 25 °C |
Key Advantages
High Purity Grade
With a purity level of ≥94%, our Indigo Blue ensures color consistency and minimizes impurities in every batch.
Long-term Stability
Formulated for a 2-year shelf life when stored correctly, ensuring reliable supply chain management.
Denim Specialization
Perfectly optimized for cotton yarn and denim cloth, allowing for superior stone and acid wash effects.
Precise Color Grain
Dark blue even grains provide a uniform distribution of dye, preventing streaks or spots on fabric.
Multi-Fiber Utility
While dominant in cotton, it offers excellent results for specialized wool and silk dyeing applications.
Strict Quality Control
Controlled iron ion content (≤200ppm) prevents unwanted chemical reactions during the dyeing process.
Product Gallery
Management Platforms
Flexible Packaging
Available in 20kg cartons, 25kg bags, or 500-550kg bulk bags to suit your scale of production.
Logistics Optimization
High-capacity shipping options from 20'GP to 40'HQ containers (up to 25mt per shipment).
Safety Protocol
Strict prohibition of mixing with oxidants or edible chemicals to ensure safety during transport.
Climate Control
Protection from sun, rain, and high temperatures to prevent premature oxidation.
Warehouse Standards
Stored in cool, ventilated, and dry areas with humidity controlled below 75%.
Chemical Isolation
Stored away from acids, alkalis, and strong oxidants to prevent combustion or deterioration.
Investment Return Comparison
| Feature | Standard Grade | Our Premium Indigo |
|---|---|---|
| Purity Level | 85% - 90% | ≥94% High Purity |
| Grain Uniformity | Irregular | Dark Blue Even Grains |
| Wash-Effect | Basic | Optimized for Stone/Acid Wash |
| Iron Impurities | High | Ultra-low (≤200ppm) |
| Shelf Life | 1 Year | 2 Years Guaranteed |
Frequently Asked Questions
It is primarily used as a dye for cotton yarn, specifically for producing denim cloth used in blue jeans, and in smaller quantities for wool and silk.
Indigo is insoluble in water, alcohol, or ether. However, it is soluble in DMSO, chloroform, nitrobenzene, and concentrated sulfuric acid.
It should be stored in a cool, dry, and ventilated warehouse at temperatures below 25°C and relative humidity below 75%, kept away from sunlight and air.
Indigo can be oxidized and deteriorate if exposed to strong oxidants (like potassium nitrate) or prolonged air exposure, affecting its color quality.
On average, a single pair of blue jeans requires between 3 grams (0.11 oz) to 12 grams (0.42 oz) of Indigo dye.
We offer 20kg cartons, 25kg bags, and 500-550kg bags, with loading capacities ranging from 9mt in a 20'GP to 25mt in a 40'HQ container.
