Description

C.I. Disperse Red 151 is a high-performance, monoazo-based disperse dye widely used in the textile industry. Its primary value lies in providing excellent color fastness properties, including light and wash fastness, on synthetic fibers. This product is essential for manufacturers and processors involved in dyeing polyester and its blends, as well as acetate and nylon fibers, to achieve vibrant and durable red shades.

Application

This disperse dye is engineered for high-temperature dyeing processes and finds its primary use in the coloration of synthetic textiles.

• Polyester Fabric Dyeing: The predominant application for achieving medium to dark red shades on 100% polyester textiles.
• Polyester Blend Dyeing: Effective for dyeing polyester blends with cotton or other cellulosic fibers.
• Acetate and Triacetate Dyeing: Used for coloring secondary acetate and triacetate fabrics.
• Nylon Dyeing: Applicable for dyeing certain types of nylon fibers.
• Textile Printing: Suitable for use in printing pastes for synthetic fabrics.
• Plastics Coloring: Can be used as a colorant for certain thermoplastic polymers.

Basic Information

Product Name	C.I. Disperse Red 151
CAS No.	61968-47-6
Molecular Formula	C₁₈H₁₈N₄O₅
Molecular Weight	370.36 g/mol
Synonyms	Disperse Red 151; Disperse Red H-BGL; C.I. 61968-47-6; 1,5-Diamino-4,8-dihydroxy-2-(4-nitrophenyl)azoanthraquinone; 2-[(4-Nitrophenyl)azo]-1,5-diamino-4,8-dihydroxyanthraquinone; Samaron Red H-BGL; Foron Red S-BGL; Dianix Red H-BGL
EINECS	Contact for details

Quality Control

Our C.I. Disperse Red 151 is manufactured under a stringent quality management system. Every batch is tested against rigorous internal specifications to ensure consistent shade, strength, and dispersion stability. Key parameters such as color value, particle size distribution, and fastness properties are verified. A Certificate of Analysis (COA) detailing these results is provided with each shipment to guarantee product integrity and performance for your application.

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. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Particle Size	> 95% passes through 80 mesh
Dispersion Stability	Grade 4/5 (at 130°C)
Fastness to Light	Grade 6-7 (Polyester)
Fastness to Washing	Grade 4-5 (Polyester)

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