Description

C.I. Acid Black 194 is a high-performance, synthetic acid dye belonging to the azo chemical class. This dye is valued for its excellent color strength, good leveling properties, and strong affinity for protein fibers like wool, silk, and nylon. It is primarily utilized by manufacturers in the textile, leather, and paper industries seeking deep, durable black shades with good wet fastness. As a light-sensitive material, proper handling and storage are essential to maintain its color integrity and performance.

Application

• Primary dyeing of wool and wool-blend textiles for apparel and carpets.
• Coloration of silk fabrics and garments, providing rich, vibrant blacks.
• Dyeing of nylon fibers used in hosiery, sportswear, and automotive interiors.
• Leather finishing for footwear, upholstery, and accessories.
• Paper coloration for specialty packaging and decorative papers.
• Ink formulation for specific printing applications requiring acid dyes.

Basic Information

Product Name	C.I. Acid Black 194
CAS No.	61931-02-0
Molecular Formula	C40H23N7Na4O13S4
Molecular Weight	1085.88 g/mol
Synonyms	Acid Black 194; C.I. 61931-02-0; Acid Leather Black 194; Nylosan Black N-BL; Telon Black BGL; Acid Black WAN; Black 194; Acid Dye Black 194; 2,7-Naphthalenedisulfonic acid, 5-[[4-[[2-(acetyloxy)ethyl][4-[[2-[(2,4-diaminophenyl)azo]-7-sulfo-1-naphthalenyl]azo]phenyl]amino]phenyl]azo]-4-hydroxy-3-[(2-methylphenyl)azo]-, sodium salt (1:4)
EINECS	Contact for details

Quality Control

Our production of C.I. Acid Black 194 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested for critical parameters including color strength, shade, solubility, and fastness properties. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing the product's conformance to agreed specifications. Our quality system is designed to support the demanding requirements of global industrial dyeing operations.

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 incompatible materials and direct heat sources. Due to its light-sensitive nature, prolonged exposure to light should be avoided to prevent degradation of the dye.

Specification

Item	Specification
Appearance	Black powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
Fastness Properties	To be specified per grade

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