Description

C.I. Reactive Brown 24 is a high-performance, water-soluble reactive dye designed for the coloration of cellulosic fibers. This product matters for its ability to form a covalent bond with the fiber substrate, resulting in exceptional wash and light fastness properties. It is primarily needed by textile manufacturers and dye houses for dyeing and printing cotton, viscose, and other natural fibers, ensuring vibrant and durable brown shades.

Application

• Exhaust dyeing of cotton yarn and knitted fabrics.
• Continuous pad-dyeing and pad-steam processes for woven cotton.
• Textile printing applications on cellulosic substrates.
• Dyeing of viscose rayon and other regenerated cellulose fibers.
• Used in combination with other reactive dyes to achieve a wide spectrum of brown and olive shades.
• Suitable for use in industrial dyeing machines, including jet, overflow, and beam systems.

Basic Information

Product Name	C.I. Reactive Brown 24
CAS No.	61969-05-9
Molecular Formula	C31H19ClN7O10S2.2Na
Molecular Weight	Contact for details
Synonyms	Reactive Brown 24; Reactive Brown K-4R; C.I. 17985; Reactive Brown KE4R; Cibacron Brown 4R; Levafix Brown E-4R; Procion Brown H-4R; Remazol Brown RR
EINECS	Contact for details

Quality Control

Our production of C.I. Reactive Brown 24 adheres to stringent quality management protocols. Every batch is tested to ensure consistent shade, strength, and fixation properties. Certificates of Analysis (COA) detailing key parameters such as color strength, solubility, and fixation rate are available upon request to support your quality assurance processes.

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 to maintain stability.

Specification

Item	Specification
Appearance	Brown powder
Color Strength	Standard depth ± 5%
Solubility (in water at 50°C)	> 100 g/L
Fixation Rate	> 70%
Moisture Content	≤ 5.0%
Identification (IR)	Conforms to standard
pH (1% solution)	6.0 - 8.0

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