Description

C.I.Disperse Blue 266 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 utilized by manufacturers in the textile and polymer industries for dyeing and printing polyester, acetate, and nylon materials.

Application

• Primary dyeing of polyester fibers and fabrics for apparel and home textiles.
• Printing applications on polyester and polyester-blend materials.
• Dyeing of acetate fibers used in linings and certain apparel.
• Coloration of nylon fibers for specific textile and industrial applications.
• Mass coloration of synthetic polymers during the spinning process.
• Used in the production of colored masterbatches for plastics.

Basic Information

Product Name	C.I. Disperse Blue 266
CAS No.	88650-93-5
Molecular Formula	C20H17N5O6S
Molecular Weight	463.44 g/mol
Synonyms	Disperse Blue 266; Disperse Navy Blue S-2GL; C.I. 113247; 1,4-Benzenediamine, N,N'-1,2-ethanediylbis[4-(2,4-dinitrophenyl)azo]-; Kayalon Polyester Navy Blue S-2GL; Foron Navy S-2GL; Samaron Navy HFRL; Terasil Navy S-2GL
EINECS	Contact for details

Quality Control

Our C.I. Disperse Blue 266 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. The product is tested against key parameters including color strength, dispersion stability, and particle size distribution. Certificates of Analysis (COA) detailing purity, shade, and physical properties are available for every batch upon request.

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 prevent degradation.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Particle Size	≤ 5 μm (Average)
Dispersion Stability	Stable
pH (Aqueous Dispersion)	6.0 - 8.0

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