Description

Direct Green 59 is a synthetic, water-soluble dye belonging to the direct dye class, widely recognized for its strong affinity to cellulosic fibers. Its primary value lies in providing a deep, vibrant green color with excellent wash and light fastness properties on cotton, viscose, and other natural materials. This dye is essential for manufacturers in the textile industry seeking reliable and cost-effective coloration for yarns, fabrics, and finished garments.

Application

• Textile Dyeing: Primary application for dyeing cotton, rayon, linen, and other cellulosic fibers in exhaust and continuous dyeing processes.
• Paper Coloring: Used for tinting paper products, including specialty papers, packaging, and decorative items.
• Leather Finishing: Employed in the dyeing of leather goods to achieve consistent and durable green shades.
• Ink Formulation: A colorant component in the manufacture of certain types of inks for industrial or craft purposes.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Wood Staining: Applied for coloring wood and wood-based products to enhance aesthetic appeal.

Basic Information

Product Name	Direct Green 59
CAS No.	7219-11-6
Molecular Formula	C34H25N9Na4O16S4
Molecular Weight	1085.88 g/mol
Synonyms	Direct Green B; Direct Green GS; C.I. Direct Green 59; Direct Green 59 (C.I. 34040); Direct Dark Green B; Direct Green BE; Pontamine Green B; Amanil Green B; Chlorazol Green B; Benzo Green B; Sirius Green B
EINECS	Contact for details

Quality Control

Our Direct Green 59 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against established specifications for critical parameters such as color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee compliance with your technical requirements.

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.

Specification

Item	Specification
Appearance	Dark green to 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	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Fastness Properties	Contact for details

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