Description

C.I. Reactive Yellow 23 is a high-performance, water-soluble reactive dye belonging to the vinyl sulfone class. It is valued for its bright, clear yellow hue and excellent fastness properties, particularly on cellulosic fibers like cotton and viscose. This dye is essential for textile manufacturers and dye houses seeking reliable, vibrant coloration with strong covalent bonds to the fabric substrate. Its primary application is in the exhaust and continuous dyeing and printing of textiles, where it delivers consistent results and good reproducibility.

Application

• Exhaust Dyeing of Cotton: Primary application for dyeing cotton yarns and fabrics in jet, overflow, and beam dyeing machines.
• Continuous Dyeing Processes: Used in pad-batch, pad-steam, and pad-dry thermofix processes for efficient, large-scale coloration.
• Textile Printing: Formulated for printing pastes applied to cellulosic fabrics, producing sharp and wash-fast prints.
• Viscose and Linen Dyeing: Effective for dyeing other cellulosic fibers, providing good levelness and penetration.
• Dyeing of Blended Fabrics: Can be used in combination with other dye classes for coloring cotton-polyester or cotton-nylon blends.
• Industrial Textiles: Suitable for coloring industrial fabrics where colorfastness to washing and light is required.

Basic Information

Product Name	C.I. Reactive Yellow 23
CAS No.	12226-50-5
Molecular Formula	C23H18ClN7Na3O11S3
Molecular Weight	802.06 g/mol
Synonyms	Reactive Yellow 23; Reactive Yellow K-RL; Reactive Yellow VS-RL; C.I. 14960; Remazol Yellow RR; Levafix Yellow E-RL; Procion Yellow H-ERL; Drimarene Yellow K-2R; Vinylsulfone Reactive Yellow; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of C.I. Reactive Yellow 23 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, shade, solubility, and fixation rate. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing the specific test results. Our quality systems are designed to meet the demands of global textile supply chains.

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 resealed tightly after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Yellow to orange powder
Color Strength	100 ± 3% (Standard)
Shade	Conforms to standard
Solubility in Water	≥ 100 g/L (at 50°C)
Moisture Content	≤ 5.0%
pH (1% Solution)	5.5 - 7.5
Fixation Rate	≥ 70%
Dusting	Low

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