Description

Vat Black 8 is a high-performance vat dye belonging to the anthraquinone chemical class, known for its exceptional color fastness and deep, rich black shade. Its primary value lies in delivering superior wash, light, and chlorine resistance, making it a critical component for durable and high-quality coloration. This product is essential for industrial manufacturers in the textile and leather industries who require a reliable and robust black dye for premium applications such as workwear, automotive fabrics, and high-end apparel.

Application

• Textile Dyeing and Printing: Primarily used for dyeing and printing cellulosic fibers like cotton, viscose, and linen, producing deep black shades with outstanding fastness properties.
• Leather Finishing: Employed in the dyeing of leather goods, including upholstery, footwear, and accessories, where color durability is paramount.
• Technical Textiles: Ideal for coloring industrial fabrics, canvas, tarpaulins, and other materials exposed to harsh environmental conditions.
• Yarn Dyeing: Used in the batch or continuous dyeing of yarns intended for weaving or knitting denim, outerwear, and other durable fabrics.
• Pigment Manufacturing: Can serve as a base for producing high-quality, insoluble organic pigments for specialized applications.

Basic Information

Product Name	Vat Black 8
CAS No.	2278-50-4
Molecular Formula	C₃₄H₁₆N₂O₆
Molecular Weight	548.50 g/mol
Synonyms	C.I. Vat Black 8; C.I. 71000; Vat Black B; Vat Black BB; Indanthren Black BB; Caledon Black BB; Mikethren Black BB; Anthraquinone Black
EINECS	218-904-9

Quality Control

Our Vat Black 8 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including shade, strength, particle size, and solubility to meet precise industrial specifications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and application performance is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Dark Blue-Black Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Particle Size	≥ 95% passes 80 mesh
Dispersion in Water	Good
Fastness Properties (Typical)	Light: 6-7; Wash: 4-5; Chlorine: 4-5

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.