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 vat dye offers exceptional stability and a classic aesthetic, ensuring consistent color depth and superior quality for high-end garment manufacturing.
With a chemical formula of C16H10N2O2 and a purity level of ≥94%, our Indigo Blue is optimized for the dyeing of cotton yarn and the production of denim cloth. Its unique chemical properties facilitate advanced textile finishes, including stone washing and acid washing, making it the ideal choice for producing authentic blue jeans and luxury wool or silk fabrics.
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 |
| Shelf Life | Two Years | Standard Pack | 20kg/25kg/500kg |
Key Advantages
High Purity Grade
With purity ≥94%, it ensures vibrant, consistent coloring and reduces impurities in the dyeing process.
Optimal Stability
Designed for a 2-year validity period with strict control over moisture and oxidation for long-term storage.
Denim Expertise
Specifically formulated for cotton yarn, delivering the perfect base for professional denim production.
Versatile Finishing
Perfectly supports stone washing and acid washing effects for modern fashion requirements.
Low Iron Content
Iron ion content ≤200ppm prevents unwanted spotting and ensures a clean, uniform blue hue.
Flexible Logistics
Customizable packaging from 20kg cartons to 550kg bags to suit various industrial scales.
Product Gallery
Management Platforms
Packaging Options
Available in 20kg cartons, 25kg bags, or 500-550kg jumbo bags per customer request.
Container Load
Optimized loading for 20’GP and 40’HQ containers (up to 25mt) for global shipping.
Transport Safety
Strict prohibition of mixing with oxidants or edible chemicals to ensure hazardous safety.
Environmental Control
Protected from sun exposure, rain, and high temperatures during transit to avoid deterioration.
Warehouse Storage
Stored in cool, ventilated, and dry areas with temperature
Isolation Protocol
Kept separate from acids, alkalis, and strong oxidants to prevent combustion or oxidation.
Investment Return Comparison
| Performance Metric | Standard Grade Indigo | Our Premium Vat Blue |
|---|---|---|
| Purity Level | 85% - 90% | ≥94% High Purity |
| Color Consistency | Moderate Variation | High Uniformity |
| Wash Stability | Average | Superior for Stone/Acid Wash |
| Iron Impurities | Standard Range | Low (≤200ppm) |
| Dyeing Efficiency | Standard | High Absorption Rate |
Frequently Asked Questions
It is primarily used for dyeing cotton yarn, specifically for the production of denim cloth used in blue jeans, as well as for coloring wool and silk.
The properties of Indigo Blue allow it to be removed from the surface of the yarn during mechanical abrasion, creating the characteristic faded look of stone-washed denim.
It must be stored in a cool, dry, ventilated warehouse (
No, Indigo is insoluble in water, alcohol, or ether. It is soluble in DMSO, chloroform, nitrobenzene, and concentrated sulfuric acid.
On average, a single pair of blue jeans requires between 3 grams (0.11 oz) to 12 grams (0.42 oz) of indigo dye.
It must be transported away from fire, heat sources, and oxidants, and protected from rain and direct sun exposure to prevent deterioration.
