Description

C.I. Reactive Orange 53 is a high-performance, water-soluble reactive dye belonging to the azo dye class. It is engineered for exceptional color yield and covalent bonding with cellulosic fibers, ensuring superior wash and light fastness properties. This dye is essential for textile manufacturers and dye houses seeking vibrant, durable orange shades on cotton, viscose, and other natural fibers.

Application

• Exhaust Dyeing of Cotton: Primary application for dyeing yarns, knits, and woven fabrics in jet, overflow, and winch dyeing machines.
• Continuous Dyeing (Pad-Batch/Steam): Used in pad-batch and pad-steam processes for efficient, large-scale coloration of cellulosic fabrics.
• Viscose and Linen Dyeing: Provides excellent build-up and levelness on regenerated and other natural cellulosic materials.
• Union Dyeing: Suitable for dyeing blends of cotton with polyester or nylon when used in appropriate combination processes.
• Garment Dyeing: Applied for achieving fashionable, solid orange shades in finished apparel items.
• Technical Textiles: Used for coloring industrial textiles where good fastness properties are required.

Basic Information

Product Name	C.I. Reactive Orange 53
CAS No.	59979-29-2
Molecular Formula	C31H19ClN7Na4O19S6
Molecular Weight	1180.38 g/mol
Synonyms	Reactive Orange 53; Reactive Brilliant Orange 3R; C.I. 17929; Reactive Orange H-3R; Triazinyl reactive orange dye; Sodium 4-[[4-chloro-6-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate
EINECS	Contact for details

Quality Control

Every batch of C.I. Reactive Orange 53 is manufactured and tested under a strict quality management system. We ensure consistent performance through rigorous analysis of key parameters including color strength, solubility, fixation rate, and fastness properties. A comprehensive Certificate of Analysis (COA) detailing purity, shade, and physical-chemical specifications is provided with each shipment to guarantee it meets your application requirements.

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. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Orange to reddish-orange powder
Color Strength	≥ 100% (vs. Standard)
Solubility in Water	≥ 100 g/L (at 50°C)
Moisture Content	≤ 5.0%
pH (1% Solution)	5.5 - 7.5
Fixation Rate	≥ 70%
Identification (IR)	Conforms to Standard
Assay (HPLC)	≥ 90.0%

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