Indigo Blue Vat Blue is a premium, high-purity dark blue crystalline powder specifically engineered for the textile industry. As a cornerstone of denim production, this specialized dye is renowned for its superior purity (≥94%) and stable chemical properties, ensuring consistent coloration and exceptional depth of shade for high-end cotton yarn and denim fabrics.
Designed for versatility and performance, our Indigo Blue supports advanced textile finishing techniques including stone washing and acid washing. Whether utilized for mass-market blue jeans or luxury silk and wool blends, it provides the essential chemical foundation required to achieve the iconic indigo aesthetic with precision and reliability.
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 | Soluble in DMSO, Chloroform | Insolubility | Water, Alcohol, Ether |
| Validity Period | Two years | Primary Application | Cotton Yarn/Denim |
Key Advantages
High Purity Grade
With a purity level of ≥94%, our dye ensures minimal impurities and consistent color results across batches.
Optimal Stability
Strict control of water content (≤1%) and iron ions prevents premature oxidation and degradation.
Denim Specialized
Specifically optimized for cotton yarn to create the authentic look required for blue jeans.
Finishing Versatility
Ideally suited for stone washing and acid washing effects to create trendy vintage textures.
Broad Application
While primary for denim, it is also highly effective for specialized wool and silk dyeing.
Precise Dosage
High efficiency allowing for precise application, typically requiring only 3g to 12g per pair of jeans.
Product Gallery
Management Platforms
Flexible Packaging
Available in 20kg cartons, 25kg bags, or 500-550kg bulk bags to suit various production scales.
Optimized Shipping
Strategic loading options for 20'GP and 40'HQ containers to maximize freight efficiency.
Safe Transit
Strict isolation from oxidants and edible chemicals to ensure safety during global transportation.
Environmental Protection
Transportation protocols strictly avoid sun exposure, rain, and high-temperature areas.
Climate-Controlled Storage
Storage maintained below 25°C and 75% relative humidity to prevent oxidation.
Isolation Protocols
Stored separately from acids, alkalis, and strong reducing agents to prevent combustion.
Investment Return Comparison
| Metric | Standard Grade | Our Premium Indigo |
|---|---|---|
| Purity Level | 85% - 90% | ≥94% High Purity |
| Color Consistency | Variable | Highly Uniform |
| Washing Effects | Moderate | Excellent (Stone/Acid) |
| Storage Life | 12 Months | 24 Months (Stability) |
| Application Waste | Higher | Low (Precise Dosage) |
Frequently Asked Questions
It is primarily used as a dye for cotton yarn, specifically for the production of denim fabrics used in blue jeans. It is also used in smaller quantities for wool and silk dyeing.
It must be stored in a cool, dry, and ventilated warehouse below 25°C and 75% humidity. It should be kept sealed and away from sunlight, air, acids, and strong oxidants.
No, Indigo is insoluble in water, alcohol, or ether. However, it is soluble in DMSO, chloroform, nitrobenzene, and concentrated sulfuric acid.
The chemical properties of indigo allow it to sit on the surface of the fiber, which enables mechanical abrasion (like stone washing) to remove dye selectively and create high-contrast faded effects.
It is strictly prohibited to transport Indigo Blue with oxidants or edible chemicals. It must also be protected from rain, direct sun, and high heat during transit.
On average, a pair of blue jeans requires between 3 grams (0.11 oz) and 12 grams (0.42 oz) of indigo dye.
