Description

C.I. Reactive Blue 77 is a high-performance, water-soluble reactive dye belonging to the anthraquinone chemical class. It is engineered to deliver excellent color fastness and brilliant blue shades on cellulosic fibers like cotton and viscose. This product is essential for textile manufacturers and dye houses seeking reliable, vibrant coloration with strong covalent bonding to fabric. Its consistent quality makes it suitable for demanding global supply chains in apparel, home textiles, and industrial fabric production.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, linen, and other cellulosic fibers.
• Viscose/Rayon Coloration: Provides bright and wash-fast blue shades on regenerated cellulose fabrics.
• Yarn Dyeing: Used for dyeing cotton yarns intended for weaving and knitting applications.
• Garment Dyeing: Suitable for batch dyeing of finished cotton garments for fashion and workwear.
• Home Textiles: Employed in the coloration of bed linens, towels, and upholstery fabrics requiring good light and wash fastness.
• Industrial Fabrics: Used for dyeing canvas, denim, and other heavy-duty cotton-based materials.

Basic Information

Product Name	C.I. Reactive Blue 77
CAS No.	61968-95-4
Molecular Formula	C29H19ClN7O11S3·xNa
Molecular Weight	Contact for details
Synonyms	Reactive Blue 77; Reactive Blue M-2G; C.I. 61211; Remazol Brilliant Blue R Special; Levafix Blue CA; Procion Blue H-ERD; Dianix Blue CC-FS; Sumifix Supra Brilliant Blue BRF
EINECS	Contact for details

Quality Control

Our C.I. Reactive Blue 77 is manufactured under a strict quality management system. Every batch is tested to ensure consistent shade, strength, solubility, and fixation properties. Certificates of Analysis (COA) detailing key parameters such as color strength, hue, and impurity profile are available upon request 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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Blue Powder
Color Strength	Standard Depth ± 3%
Solubility in Water	≥ 100 g/L (at 50°C)
pH (1% Solution)	6.0 - 8.0
Moisture Content	≤ 5.0%
Identification (IR)	Conforms to Standard
Fixation Rate	≥ 70%
Fastness Properties (Typical)	Wash: 4-5, Light: 5-6

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