Cationic Yellow 40

A high-fixation cationic yellow designed for excellent levelling, reproducible shade matching, and reliable performance across acrylic and modified cellulosic fibers.

Product Overview

Cationic Yellow 40 (commonly marketed as Basic Yellow 40) is a cationic (basic) dye formulated to deliver a bright, warm yellow shade with outstanding dye-to-dye reproducibility. It is optimized for dyeing acrylic fibers and blends, and performs well in applications requiring vivid, uniform coloration with efficient fixation.

Unlike commodity yellow dyes, this grade emphasizes batch-to-batch shade consistency, controllable levelling, and predictable fixation kinetics — reducing rework and helping mills meet tight shade tolerances.

Relative Name

Cationic Flavine 7GL,Basacryl Yel-low 5GL,Diacryl Brilliant Yellow 5G-N,Kayacryl Brilliant Yellow 5GL,Sumiacryl Yellow 6G

Key Product Features

• Bright & Stable Shade - Brilliant warm yellow with good depth and consistent hue across concentrations.
• High Fixation - Designed for efficient uptake on cationic sites—reduces dye loss and liquor disposal cost.
• Excellent Levelling - Gentle and uniform leveling behavior on yarns and fabrics to minimize streaks.
• Good Wet & Light Fastness - Engineered to provide dependable washing and light performance for many end-use products.

Applications

• Textile dyeing for acrylic fibers and acrylic blends
• Yarn and fabric dyeing for home textiles and fashion
• Printing inks for textile printing (formulation dependent)
• Specialty uses where bright, durable yellow shades are required

Why Choose Our Grade?

• Consistent shade & reproducibility
• Optimized fixation to reduce waste
• Technical support for recipe optimization
• Flexible packing and supply chain options

Technical Specifications

• ‍Product Name:BASIC YELLOW 40

• CAS No.: 12221-32-5
• Molecular Formula: C20H20ClN3O2
• Molecular Weight: 369.84
• Shade: yellow‍

Package

25KG/DRUM, CARTON BOX, BAG

Safety & Handling

Handle with standard industrial precautions: avoid inhalation and prolonged skin contact. Use appropriate PPE (gloves, eye protection). Dispose according to local regulations. For complete safety information, download the Safety Data Sheet (SDS).

Need help optimizing the dye recipe?

Our technical team helps mills and formulators optimize fastness, fixation and leveling — tell us your substrate and target shade.

Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.