Description

Disperse Blue 257 is a high-performance synthetic dye belonging to the disperse dye 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 fastness on synthetic fibers. It is primarily used by manufacturers in the textile and polymer industries for dyeing and printing polyester, acetate, and nylon materials. Our supply ensures consistent quality and reliable performance for demanding industrial applications.

Application

• Primary dyeing of polyester fibers and fabrics.
• Printing applications on polyester and polyester-blend textiles.
• Coloration of nylon and acetate fibers.
• Mass coloration of synthetic polymers and plastics.
• Used in the production of colored polyester masterbatch.
• Applicable in high-temperature dyeing processes for automotive textiles.
• Dyeing of polyester microfibers for sportswear and outdoor apparel.
• Potential use in specialty inks for synthetic substrates.

Basic Information

Product Name	Disperse Blue 257
CAS No.	84931-03-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Disperse Blue 257; Disperse Navy Blue S-2GL; Kayalon Polyester Navy Blue S-2GL; Foron Navy S-2GL; Dianix Navy Blue S-2GL; Samaron Navy Blue FBL; Terasil Navy Blue S-2GL; Blue 257
EINECS	Contact for details

Quality Control

Our Disperse Blue 257 is manufactured under a strict quality management system to ensure batch-to-batch consistency and meets the high standards required for industrial dyeing. Each lot is tested for critical parameters including color strength, dispersion stability, and particle size distribution. A Certificate of Analysis (COA) detailing purity, shade, and physical properties is provided with every 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 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 or Granules
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Dispersion Stability	Pass Test
Particle Size	> 95% passes through specified mesh
pH (Aqueous Dispersion)	5.0 - 8.0

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