Description

Reactive Blue 75 is a high-purity, reactive anthraquinone dye used for coloring cellulosic fibers. It is valued for its excellent wash and light fastness properties, providing vibrant and durable blue shades. This product is essential for textile manufacturers, particularly in the dyeing and printing of cotton, viscose, and other natural fibers, where consistent color yield and process reliability are critical.

Application

• Primary application in the exhaust dyeing of cotton and other cellulosic fabrics.
• Used in the continuous dyeing and printing processes for textiles.
• Suitable for dyeing viscose (rayon) and linen to achieve deep blue hues.
• Employed in the production of colored yarns for weaving and knitting.
• Can be used for garment dyeing applications.
• Applicable in the coloration of non-woven cellulosic materials.

Basic Information

Product Name	Reactive Blue 75
CAS No.	12731-64-5
Molecular Formula	C29H19ClN7O11S3·2Na
Molecular Weight	Contact for details
Synonyms	Reactive Blue H-EG 150%; C.I. Reactive Blue 75; Remazol Brilliant Blue R Special; Levafix Blue CA; Procion Blue H-EG 150%; Sumifix Supra Brilliant Blue BRF; Dianix Blue CC-FS
EINECS	Contact for details

Quality Control

Our Reactive Blue 75 is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for key parameters including color strength, solubility, and fixation properties to ensure batch-to-batch consistency and performance in your application. 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 and incompatible materials.

Specification

Item	Specification
Appearance	Blue Powder
Color Strength	≥ 100% (Standard)
Moisture Content	≤ 5.0%
Water Solubility	≥ 50 g/L (at 50°C)
pH (1% Solution)	5.5 - 7.5
Identification (IR)	Conforms
Fixation Rate	≥ 70%

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