Description

Disperse Blue 56 is a synthetic anthraquinone derivative dye widely recognized for its excellent colorfastness and thermal stability. This high-performance dye is engineered to provide vibrant and durable coloration for synthetic fibers, making it a critical component in demanding textile manufacturing processes. It is primarily utilized by producers of polyester, acetate, and nylon fabrics, as well as by specialty chemical formulators serving the plastics and ink industries.

Application

• Primary dyeing and printing of polyester fibers and fabrics.
• Coloration of acetate and triacetate textiles.
• Dyeing of nylon and polyamide materials.
• Mass coloration (dope dyeing) of synthetic polymers and plastics.
• Manufacture of transfer printing papers.
• Production of specialty inks and toners.
• As a colorant in the production of masterbatches for plastic products.

Basic Information

Product Name	Disperse Blue 56
CAS No.	12217-79-7
Molecular Formula	C20H13N3O5
Molecular Weight	375.34 g/mol
Synonyms	1,4-Diamino-2,3-dihydroanthraquinone; C.I. 63285; Disperse Blue B; Samaron Blue FBL; Foron Blue S-BGL; Palanil Blue B; Terasil Blue BGE; Dianix Blue BG-FS; C.I. Disperse Blue 56; 1,4-Bis(methylamino)anthraquinone (common misnomer); 9,10-Anthracenedione, 1,4-bis(methylamino)-
EINECS	235-386-4

Quality Control

Our Disperse Blue 56 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent color strength, purity, and application performance. Key parameters such as shade, dispersion stability, and particle size distribution are rigorously controlled. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a temperature between 15-25°C. Keep away from strong oxidizing agents and incompatible materials. The original container is the best storage vessel to maintain product integrity.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Particle Size (≥ 95%)	≤ 2 μm
Dispersion Stability	Stable
pH (1% Aqueous Dispersion)	6.0 - 8.0

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