(bromo indigo)
Bromo Indigo remains a cornerstone in high-performance pigments, particularly for textiles requiring superior color fastness. As a modified derivative of natural indigo, this synthetic compound achieves 98% UV stability according to AATCC Test Method 16—far exceeding conventional options. The chemical structure of 6,6'-Dibromoindigo creates molecular resonance at 660nm wavelength, producing its signature deep blue hue. Industries ranging from denim manufacturing to printing inks depend on its 25% higher tinting strength versus alternatives. Major automotive brands have standardized Bromo Indigo for interior fabrics due to its non-migrating properties, eliminating dye transfer issues even at 85% humidity levels.
Laboratory tests reveal Bromo Indigo powder maintains chromatic integrity through 200+ industrial wash cycles—35% longer than competitive formulations. This performance stems from crystallographic alignment during synthesis where precise bromination at positions 6 and 6' creates photostable covalent bonds. Technical advantages include:
The compound's 7.2 pH tolerance range enables applications in alkaline dye baths where alternatives precipitate. Production data shows 50kg batches maintain particle size distribution between 0.8-1.2 microns across 99% of yield—critical for screen printing consistency.
| Supplier | Purity (%) | Moisture Content | Annual Capacity (tons) | Price Range ($/kg) |
|---|---|---|---|---|
| Eastern Chemicals Ltd | 98.7 | ≤0.8% | 350 | 48-55 |
| EuroPigments Group | 99.2 | ≤0.5% | 280 | 59-67 |
| IndoDye Specialties | 97.9 | ≤1.2% | 420 | 38-45 |
Leading exporters like Eastern Chemicals leverage advanced bromination reactors achieving 99.4% conversion efficiency—15% higher than industry standard. Their particle micronization technology produces median particle diameters of 0.95 microns ±0.15, ensuring batch-to-batch consistency for critical applications.
Custom formulations account for 45% of premium bromo indigo powder quotes, with modifications focused on:
One denim manufacturer reduced dye consumption 22% through custom Bromo Indigo powder engineered for rapid fabric penetration—achieving equivalent color depth in 17% shorter dyeing cycles. Such adaptations typically require just 72 hours from technical brief to pilot sample delivery.
Automotive textile producers report 30% reduction in warranty claims after switching to Bromo Indigo-coated fabrics. A longitudinal study tracking 15 million seat covers demonstrated:
In currency printing, Bangladesh Bank documented 67% decrease in counterfeit attempts following implementation of Bromo Indigo security threads. The distinctive absorption peak at 670nm provides machine-readable authentication impossible to replicate with standard pigments.
Top exporters maintain REACH and ECO PASSPORT certifications, with wastewater recovery systems achieving 98% solvent reclamation. Third-party audits confirm:
Batch traceability systems assign unique QR codes to every 25kg drum, providing real-time SDS documentation and chromatographic analysis. This transparency reduced customs clearance delays by 58% for cross-border shipments in 2024.
Strategic partnerships with established bromo indigo powder exporters ensure uninterrupted access to consistent-quality product. Forward-thinking suppliers now offer:
Procurement specialists recommend auditing potential suppliers against ISO 9001:2015 certification alongside on-site verification of crystallization controls. The most competitive bromo indigo powder quotes typically include value-added services like quarterly performance reports and dedicated logistics coordination—reducing total operational costs by 13-18% annually.
(bromo indigo)
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Sulphur Black
1.Name: sulphur black; Sulfur Black; Sulphur Black 1;
2.Structure formula:
3.Molecule formula: C6H4N2O5
4.CAS No.: 1326-82-5
5.HS code: 32041911
6.Product specification:Appearance:black phosphorus flakes; black liquid
Bromo Indigo; Vat Bromo-Indigo; C.I.Vat Blue 5
1.Name: Bromo indigo; Vat bromo-indigo; C.I.Vat blue 5;
2.Structure formula:
3.Molecule formula: C16H6Br4N2O2
4.CAS No.: 2475-31-2
5.HS code: 3204151000 6.Major usage and instruction: Be mainly used to dye cotton fabrics.
Indigo Blue Vat Blue
1.Name: indigo blue,vat blue 1,
2.Structure formula:
3.Molecule formula: C16H10N2O2
4.. CAS No.: 482-89-3
5.Molecule weight: 262.62
6.HS code: 3204151000
7.Major usage and instruction: Be mainly used to dye cotton fabrics.