Description

C.I. Disperse Blue 319 is a high-performance, anthraquinone-based disperse dye widely used for its excellent color fastness and dyeing properties. This product is essential for achieving deep, vibrant blue shades with superior wash and light fastness on synthetic fibers. It is primarily needed by manufacturers in the textile industry for dyeing polyester, acetate, and nylon fabrics, as well as by producers of specialty inks and plastics.

Application

• Primary dyeing of polyester fibers and fabrics.
• Dyeing of cellulose acetate and triacetate materials.
• Coloration of nylon and other synthetic fibers.
• Use in the production of transfer printing papers.
• Coloration of plastics, particularly for technical applications.
• Manufacture of specialty inks for non-paper substrates.
• Research and development of new dye formulations.
• Production of colored masterbatches for synthetic polymers.

Basic Information

Product Name	C.I. Disperse Blue 319
CAS No.	72827-93-1
Molecular Formula	C20H17NO5
Molecular Weight	351.35 g/mol
Synonyms	Disperse Blue 319; C.I. 111935; 1,4-Bis[(2-hydroxyethyl)amino]-9,10-anthracenedione; 1,4-Bis(2-hydroxyethylamino)anthraquinone; 9,10-Anthracenedione, 1,4-bis[(2-hydroxyethyl)amino]-; Disperse Blue SE-2R; Samaron Blue FBL; Foron Blue S-BGL; Dianix Blue FBL-E
EINECS	Contact for details

Quality Control

Our C.I. Disperse Blue 319 is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance. Each lot undergoes rigorous testing for key parameters including color strength, shade, particle size distribution, and dispersion stability. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with every shipment to guarantee it meets your specific application requirements.

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
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size	> 95% passes 80 mesh
Dispersion Stability	Stable

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