Description

Disperse Blue 359 is a high-performance synthetic dye belonging to the disperse dye class, specifically engineered for exceptional color fastness and thermal stability. Its primary value lies in providing a brilliant and durable blue coloration to synthetic fibers, particularly polyester and its blends, under high-temperature dyeing conditions. This product is essential for textile manufacturers and dye houses seeking reliable, consistent, and vibrant blue shades for apparel, home furnishings, and technical textiles. The compound is identified by CAS No. 62570-50-7.

Application

• Primary dyeing and printing of polyester fabrics and yarns.
• Coloration of polyester-cotton and other synthetic fiber blends.
• Use in high-temperature, high-pressure (HTHP) dyeing processes for optimal fiber penetration.
• Application in automotive textiles requiring high light and wash fastness.
• Dyeing of polyester-based home textiles, such as curtains and upholstery.
• Manufacture of sportswear and outdoor apparel where color durability is critical.
• Potential use in the coloration of certain plastics, such as polyamide (nylon).

Basic Information

Product Name	Disperse Blue 359
CAS No.	62570-50-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Disperse Blue 359; Disperse Navy Blue S-2GL; Samaron Navy Blue S-2GL; Foron Navy S-2GL; Dianix Navy Blue S-2GL; Kayalon Polyester Navy Blue S-2GL; Terasil Navy Blue S-2GL; 1-Amino-4-(3-aminopropoxy)-9,10-anthracenedione (probable core structure)
EINECS	Contact for details

Quality Control

Our Disperse Blue 359 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive testing, including spectrophotometric analysis for strength and shade, assessment of dispersion stability, and evaluation of key fastness properties. A Certificate of Analysis (COA) detailing purity, physical form, and application performance is provided with every 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 heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark blue powder or granules
Identification (IR)	Conforms to standard
Color Strength	100% ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Dispersion Stability	Passes filter test
Particle Size	> 95% below 2 microns
pH (Aqueous Dispersion)	5.0 - 7.0

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