Description

Reactive Red 13 is a synthetic, water-soluble azo dye belonging to the reactive dye class, specifically designed for covalent bonding with cellulosic fibers. Its primary value lies in producing vibrant, wash-fast red shades with excellent reproducibility in industrial dyeing processes. This product is essential for textile manufacturers, particularly those working with cotton, viscose, and other natural fibers, seeking reliable and efficient coloration solutions.

Application

• Exhaust Dyeing of Cotton: Primary application for dyeing yarn, knits, and woven fabrics in jet, overflow, and beam dyeing machines.
• Continuous Dyeing (Pad-Batch/Steam): Used in pad-batch and pad-steam processes for efficient, large-scale coloration of cellulosic fabrics.
• Viscose Rayon Dyeing: Effective for dyeing viscose and other regenerated cellulose fibers to achieve bright red hues.
• Textile Printing: Formulated for use in printing pastes for direct and discharge styles on cellulose-based textiles.
• Leather Coloring: Employed in the dyeing of leather substrates where reactive fixation is desired.
• Paper Staining: Used for tinting and coloring paper products where color fastness is a requirement.

Basic Information

Product Name	Reactive Red 13
CAS No.	12238-08-3
Molecular Formula	C31H19ClN7Na3O11S3
Molecular Weight	877.96 g/mol
Synonyms	Reactive Red HE7B; C.I. Reactive Red 13; Remazol Red HE7B; Levafix Red E-7BA; Procion Red HE7B; Sumifix Red HE7B; Dianix Red HE7B; Reactive Red HE-7B
EINECS	Contact for details

Quality Control

Our Reactive Red 13 is manufactured under a strict quality management system. Every batch is tested to ensure consistent strength, shade, and reactivity performance. Key parameters including color value, fixation rate, and solubility are verified. A Certificate of Analysis (COA) detailing purity, physical properties, and application performance is provided with each shipment to guarantee it meets your specific dyeing 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 strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure the original packaging is sealed after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 7.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Fixation Rate	≥ 70% (Standard conditions)
Solubility in Water	≥ 100 g/L (at 50°C)

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