Certifications: ISO 9001:2015
Direct Red 81 Powder
Category: Direct Dyes
CI Number: 28160
Chemical Class: Polyazo Dye
Form: Powder
High-Lightfastness Red for Paper and Cotton
Direct Red 81 is a polyazo direct dye valued for its high lightfastness and good affinity for cellulosic fibres. It produces a strong, neutral red shade, making it a popular choice for dyeing paper and textiles that require enhanced durability against fading. It offers excellent stability and is easy to work with, ensuring consistent and reproducible results in large-scale industrial applications like paper manufacturing and textile dyeing.
Applications- Paper Colouring: Used for dyeing a wide variety of high-quality, light-resistant papers and boards.
- Textile Dyeing: Provides a strong, durable red on cotton and viscose for apparel and home furnishings.
- Leather Finishing: Suitable for producing a solid, lightfast red on various leather types.
Key Benefits
- High lightfastness for long-lasting colour.
- Good affinity and build-up on cellulosic fibres.
- Good solubility and dyeing performance.
- Strong, neutral red shade.
Technical Highlights
- Lightfastness: Good to Very Good (5-6)
- Ionic Nature: Anionic
- Appearance: Dark Red Powder
Packaging & Availability
- Supplied in a standardized powder form.
- Standard Packing: 25 kg carton box.
- Customized packaging is available upon request.
