Description

Direct Blue 86 is a synthetic, water-soluble anionic 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 blue shade with excellent build-up properties and good wet fastness, making it a cost-effective coloring solution for industrial applications. This dye is essential for manufacturers in the textile, paper, and leather industries seeking reliable and consistent color performance.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers in exhaust and continuous dyeing processes.
• Paper Coloring: Used for mass tinting of paper pulp to produce colored paper for packaging, stationery, and decorative purposes.
• Leather Finishing: Imparts color to leather goods, offering good penetration and uniformity on tanned hides.
• Ink Manufacturing: Serves as a colorant for the formulation of inks, particularly for specialty applications requiring specific shade and solubility.
• Biological Staining: Employed in histology and microbiology as a staining agent for tissue samples and microscopic analysis.
• Wood Staining: Used to color wood and wood-based products, providing an even and penetrating finish.

Basic Information

Product Name	Direct Blue 86
CAS No.	1330-38-7
Molecular Formula	C32H14CuN8O6S2·xNa
Molecular Weight	~781.26 (Free Acid)
Synonyms	Direct Blue 2B; C.I. Direct Blue 86; Amanil Sky Blue 2B; Atul Direct Sky Blue 2B; Benzo Sky Blue; Chloramine Sky Blue 2B; Diphenyl Sky Blue 2B; Sirius Sky Blue 2B; Solamine Sky Blue 2B; Tetrodirect Blue 2B
EINECS	215-560-2

Quality Control

Our production of Direct Blue 86 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, shade, solubility, and impurity profile to meet precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and conformance is provided with each 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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Blue to Bluish-Grey Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0

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