Description

Disperse Red 181 is a high-performance, synthetic organic dye belonging to the disperse dye class, widely recognized for its vibrant red hue. It is engineered for exceptional color fastness and thermal stability, making it a critical component for achieving durable and consistent coloration in synthetic textiles. This product is essential for manufacturers in the polyester and acetate fiber industries, as well as for specialty applications in plastics and inks, where reliable dye performance is paramount for product quality.

Application

Disperse Red 181 is primarily used for dyeing and printing synthetic fibers, offering excellent performance in demanding industrial processes.

• Textile Dyeing: Primary application for dyeing polyester (PET) and acetate fibers, providing excellent wash and light fastness.
• Textile Printing: Used in printing pastes for synthetic fabrics to create sharp, durable patterns.
• Plastics Coloring: Imparts a stable red color to various polymers, including polystyrene and polycarbonate, during mass coloration.
• Ink Manufacturing: A key pigment for specialty inks, including those for transfer printing and certain types of inkjet inks.
• Automotive Interiors: Used for coloring synthetic fabrics and plastics within vehicle cabins due to its stability.
• Nylon Dyeing: Suitable for dyeing specific types of nylon fibers where a bright red shade is required.

Basic Information

Product Name	Disperse Red 181
CAS No.	86438-38-2
Molecular Formula	C20H13N3O5
Molecular Weight	375.34 g/mol
Synonyms	Disperse Red 181; C.I. Disperse Red 181; 1-Amino-2-phenoxy-4-hydroxyanthraquinone; 1-Amino-4-hydroxy-2-phenoxyanthraquinone; Disperse Red SE-4B; Samaron Red HBL; Foron Red S-BWFL; Dianix Red AC-E; Kayalon Polyester Red BL-SE; Amacron Red FBL
EINECS	Contact for details

Quality Control

Our Disperse Red 181 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive testing including HPLC assay, spectral analysis, and application fastness tests. A Certificate of Analysis (COA) detailing purity, strength, and physical properties is provided with every shipment to support your quality assurance protocols.

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 strong oxidizing agents. The product is light-sensitive; prolonged exposure to direct light should be avoided to maintain color strength and stability.

Specification

Item	Specification
Appearance	Dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Passes test
Particle Size	> 95% passes 80 mesh

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