Description

C.I. Disperse Blue 128 is a high-performance, anthraquinone-based disperse dye widely used in synthetic fiber coloration. This product is valued for its excellent color fastness properties, including superior lightfastness and wash fastness, ensuring vibrant and durable coloration. It is primarily needed by manufacturers in the textile and polymer industries for dyeing and printing polyester, acetate, and nylon fibers.

Application

• Primary dyeing of polyester fibers and fabrics.
• Printing applications on polyester textiles.
• Dyeing of secondary acetate and triacetate fibers.
• Coloration of nylon and polyamide materials.
• Mass coloration of synthetic polymers and plastics.
• Used in the production of colored polyester yarns for automotive textiles.
• Application in the dyeing of polyester-cotton blend fabrics.
• Manufacture of colored non-woven fabrics and technical textiles.

Basic Information

Product Name	C.I. Disperse Blue 128
CAS No.	12270-41-6
Molecular Formula	C20H17NO6
Molecular Weight	367.35 g/mol
Synonyms	Disperse Blue 128; Disperse Navy Blue S-2GL; C.I. 128; 1,4-Diamino-2,3-diphenoxyanthraquinone; 1,4-Bis(methylamino)anthraquinone derivative; Samaron Navy Blue S-2GL; Foron Navy S-2GL; Dianix Navy Blue S-2GL
EINECS	235-543-6

Quality Control

Our C.I. Disperse Blue 128 is manufactured under a strict quality management system. Every batch undergoes rigorous testing to ensure consistency in shade, strength, and dispersion stability. Key parameters such as purity, particle size distribution, and fastness properties are verified. 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 room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (Standard)
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Passes Filter Test
Particle Size	> 95% below 2 microns
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.