Description

C.I. Vat Black 8 is a high-performance vat dye belonging to the anthraquinone chemical class, identified by CAS No. 241813-61-6. It is valued for its exceptional color fastness properties, including excellent resistance to light, washing, and chlorine, making it a critical component for demanding textile applications. This product is primarily needed by manufacturers in the textile dyeing and printing industries, particularly for coloring cellulosic fibers like cotton, viscose, and linen to achieve deep, durable black shades.

Application

• Primary dyeing of cellulosic fibers such as cotton, linen, and rayon for apparel and home textiles.
• Continuous and batch dyeing processes for producing fast black shades on woven and knitted fabrics.
• Textile printing applications requiring high color yield and superior wash fastness.
• Dyeing of industrial textiles, including canvas, tarpaulins, and workwear, where durability is paramount.
• Used in combination with other vat dyes to achieve a wide range of deep and compound shades.
• Application on yarns (package dyeing) and fabrics (jig, pad-steam) in exhaust and continuous dyeing systems.

Basic Information

Product Name	C.I. Vat Black 8
CAS No.	241813-61-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. 71000; Vat Black 8; C.I. Vat Black 8; Cibanone Black B; Caledon Black NB; Indanthren Black BB; Mikethrene Black B; Nihonthrene Black B; Paradone Black B; Solanthrene Black B
EINECS	Contact for details

Quality Control

Our C.I. Vat Black 8 is manufactured under a stringent quality management system. Every batch undergoes comprehensive testing to ensure consistent color strength, shade, and physical properties critical for textile applications. We provide full traceability and Certificates of Analysis (COA) are available upon request to verify compliance with your specifications.

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 heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Black Powder
Color Strength	Standard Depth ± 5%
Shade	Conforms to Standard
Dye Content	≥ 95%
Moisture Content	≤ 5.0%
Particle Size	As per customer requirement
Dusting Property	Low
Solubility in Water	Practically Insoluble
Fastness Properties (Typical)	Light: 7-8; Wash: 4-5; Chlorine: 4-5

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