Description

C.I. Disperse Red 303 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 dispersion stability, making it a critical component for achieving durable and consistent coloration on synthetic fibers. This product is essential for manufacturers in the textile and plastics industries who require reliable, high-quality dyes for polyester, acetate, and nylon materials.

Application

The primary application of C.I. Disperse Red 303 is in the coloration of synthetic textiles. Its specific uses include:

• Polyester Fabric Dyeing: For apparel, home textiles, and automotive interiors requiring excellent wash and light fastness.
• Acetate and Triacetate Dyeing: Providing bright shades on linings and specialty fabrics.
• Nylon Coloration: Used in carpets, sportswear, and hosiery.
• Plastics and Masterbatch Coloring: For coloring polyester-based resins, films, and engineering plastics.
• Inkjet Ink Formulation: For specialty textile printing applications.
• Transfer Printing: As a colorant in dyes for heat-transfer paper used on synthetic fabrics.

Basic Information

Item	Details
Product Name	C.I. Disperse Red 303
CAS No.	71872-53-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Disperse Red 303; C.I. 111235; Disperse Red SE-4B; Disperse Red H-BGL; Samaron Red H-BGL; Foron Red SE-4B; Dianix Red H-BGL; Kayalon Polyester Red BL-SE; Terasil Red W-4B
EINECS	Contact for details

Quality Control

Our C.I. Disperse Red 303 is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for key parameters including color strength, shade, dispersion stability, and particle size distribution to ensure consistent performance in downstream applications. Certificates of Analysis (COA) documenting purity and physical specifications are available 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 strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Red Powder
Color Strength	Standard: 100% ± 3%
Shade	Conforms to Standard
Dispersion Stability	Pass Test
Particle Size	>95% below 2 microns
Moisture Content	≤ 5.0%
Identification (IR)	Conforms to Structure

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