Direct Blue 71 liquid

Direct Blue 71 liquid is the aqueous form of a tetrasodium trisazo direct dye widely used for dyeing cellulose fibers and for selected paper and printing applications. It is formulated to provide deep blue shades, predictable levelling and easier handling compared with powders. Because it is a multiazodye, biodegradation and wastewater treatment considerations should be part of your effluent plan.

Key benefits

• Deep, vivid blue shades with strong tinting power on cellulosics.
• Excellent levelling in exhaust and continuous dyeing when used with recommended recipes.
• Dust-free liquid format reduces handling exposure and improves dosing accuracy.
• Good compatibility with common leveling agents and auxiliaries used for cotton and viscose.
• Available in multiple pack sizes (drums, IBCs) and customizable concentrate strengths.

Performance & compatibility notes

• Direct Blue 71 typically shows good levelling on cotton with salt-assisted exhaustion; optimize salt and alkali levels per your mill practice.
• Fastness: direct dyes usually show moderate wash and light fastness — evaluate after-treatments (fixation, crosslinkers) to improve performance if required.
• Shade can shift with metal ions and water hardness — run lab checks with your process water.
• Avoid strong oxidizing agents in the dye bath and follow the SDS for safe handling.

Related Name:

Ambidirect Blue R; Bitafast Blue GLL; Blue 2-RL; Blue B2R 100%;Chrochem Direct Blue BRR; Direct Blue B2RL; Direct Blue FFC;Direct Blue GLL; Direct Fast Blue B2R; Direct Fast Blue B3RL;Direct Light Blue FRL

Application

use for Ink,Textile printing,Paper,Paints,Plastic,Jute.

Technical Specifications

• ‍Product Name: Direct Blue 71 liquid
• C.I. No.: 34140
• CAS No.: 4399-55-7
• Molecular Formula: C40H23N7Na4O13S4
• Molecular Weight: 1029.87
• Shade: dark blue. Blue gray liquid‍

Package

25KG/DRUM.

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.