Description

Disperse Blue 291G is a high-performance synthetic dye belonging to the anthraquinone class, widely recognized for its excellent color fastness and dispersion properties. This product is essential for achieving deep, vibrant blue shades with superior wash and light resistance in synthetic textiles. It is primarily required by manufacturers in the polyester, acetate, and nylon dyeing and printing industries for applications demanding consistent quality and batch-to-batch uniformity.

Application

• Primary dyeing of polyester fibers and fabrics.
• Printing on polyester and polyester-blend textiles.
• Dyeing of secondary acetate and triacetate fibers.
• Coloration of nylon and polyamide materials.
• Production of colored masterbatches for synthetic polymers.
• Manufacturing of inks for specialized textile printing.

Basic Information

Product Name	Disperse Blue 291G
CAS No.	51868-46-3
Molecular Formula	C20H17BrN4O6
Molecular Weight	489.28 g/mol
Synonyms	Disperse Blue 291; C.I. Disperse Blue 291; 1,4-Bis[(2,6-dibromo-4-methylphenyl)amino]anthraquinone; Disperse Navy Blue S-2GL; Samaron Navy Blue FBL; Foron Navy S-2GL; Dianix Navy Blue N-FBL; Kayalon Polyester Navy Blue BL-SE
EINECS	Contact for details

Quality Control

Our Disperse Blue 291G is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including spectrophotometric analysis, dispersion stability tests, and strength assessment, to ensure it meets precise coloristic and physical specifications. A Certificate of Analysis (COA) detailing purity, shade, and performance parameters is provided with each shipment to guarantee consistency and reliability for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Passes Filter Test
Particle Size	> 95% passes 80 mesh

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