Description

Directblack19-1 is a synthetic azo dye belonging to the direct dye class, known for its strong affinity for cellulosic fibers. Its primary value lies in providing deep, substantive black shades with good wash fastness on materials like cotton, paper, and leather. This product is essential for industrial operations in the textile dyeing, paper coloring, and leather finishing sectors. We supply this high-quality colorant to meet the stringent demands of global manufacturing and processing industries.

Application

• Primary dyeing of cotton and other cellulosic textiles.
• Coloration of paper products, including specialty papers.
• Dyeing of leather goods to achieve uniform black finishes.
• As a colorant for wood staining and related applications.
• Potential use in the coloration of non-woven fabrics.
• Research and development of new dye formulations.

Basic Information

Product Name	Directblack19-1
CAS No.	85205-18-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Direct Black 19; C.I. Direct Black 19; Direct Black 19-1; Direct Black BN; Direct Deep Black EW; Direct Deep Black M; Amanil Black BX; Atul Direct Black BX; C.I. 35255
EINECS	Contact for details

Quality Control

Our Directblack19-1 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent shade, strength, and purity, meeting the specifications required for industrial applications. A Certificate of Analysis (COA) detailing key parameters such as color strength, solubility, and impurity profile is provided with every shipment to guarantee traceability and performance reliability.

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 sources of ignition. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Black to Bluish-Black Powder
Identification	Conforms (IR / HPLC)
Color Strength	Standard Depth ± 5%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade on Cotton	Conforms to Standard
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.