Outline:
(bromo indigo)
Bromo Indigo (C16H8Br2N2O2), recognized as Indigo Blue or Bromo Indigo powder, serves as a cornerstone pigment in textile manufacturing. This organobromine compound achieves 18% superior color fastness compared to conventional dyes according to AATCC TM16-2020 testing standards. Market analysis indicates 12% annual demand growth since 2020, driven by denim production and specialty printing sectors. Industrial applications leverage its unique photostability that resists UV degradation at 340nm wavelength, enabling outdoor product longevity exceeding ISO 105-B02 requirements by 30%.
Leading Bromo Indigo powder exporters maintain particle size distribution between 5-15 microns with 99.8% chemical purity. Advanced bromination reactors achieve 92% yield efficiency through temperature-controlled reactions at 70-80°C. Production innovations include closed-loop solvent recovery systems reducing VOC emissions by 78% compared to traditional methods. Key technical parameters include:
Parameter | Standard Grade | Premium Grade |
---|---|---|
Bromine Content | 32±0.5% | 32.8±0.2% |
Moisture Content | <1.5% | <0.8% |
Specific Gravity | 1.25-1.35 g/cm³ | 1.28±0.02 g/cm³ |
Solubility (in DMF) | 25 g/L at 25°C | 40 g/L at 25°C |
Regional production variances significantly impact Bromo Indigo powder quotes, with Asian exporters offering 18-22% cost advantages due to integrated bromine supply chains. Manufacturer evaluation considers three critical dimensions:
Manufacturer Type | Batch Consistency | Monthly Capacity | Lead Time |
---|---|---|---|
Integrated Chemical Plants | ±1.2% composition | 150+ MT | 3-4 weeks |
Specialty Dye Producers | ±0.7% composition | 40-80 MT | 2 weeks |
Boutique Chemical Suppliers | ±3.5% composition | <15 MT | 1 week |
Specialized Bromo Indigo powder exporters offer particle micronization down to 3μm and pre-reduced leuco forms for pad-dye applications. Surface modification techniques enhance dispersion stability, achieving Zeta potentials exceeding -40mV. Tailored packages include:
Modern dyeing procedures utilize low-liquor ratio jet dyeing (1:5) with Bromo Indigo concentrations of 2-4% owf. Continuous range operations maintain reduction potential at -750mV to -850mV, achieving 95% exhaustion rates. Critical control parameters include:
A denim mill implementing advanced Bromo Indigo formulations achieved 23% dye cost reduction while improving color consistency to DE<0.8. Process modifications included:
Procurement professionals must evaluate Bromo Indigo powder quotes against technical specifications rather than price alone. Leading European dyehouses now request ISO 9001-certified suppliers with batch traceability systems. Flexible contract terms from major exporters include technical support for dye bath optimization, reducing recipe costs by 15-20%. Volume commitments exceeding 5MT typically secure preferential logistics arrangements, lowering landed costs by 8-12% despite global shipping volatility.
(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.