Basic Black Dyes
Deep black on mechanical pulp needs a dye with real affinity for lignin, or the shade washes out into white water.
Paper Coloring Agent
Direct Black Dyes
Direct Black Dyes – Deep, Uniform, and Cost-Effective Coloring for Paper
The problem it solves. Chemical-pulp grades need deep black at a cost that survives the tender.
- RangePaper Coloring Agent
- SupplierTianjin Chemsum New Materials Co., Ltd.
- OriginTianjin, China
- PackingIBC tote or drum, confirmed on quotation
About Direct Black Dyes
Direct Black Dyes are high-performance anionic dyes widely used in paper coloration, offering deep black shades, excellent penetration, and uniform coloring. They are especially suitable for cellulose fiber-based pulps, providing strong affinity and easy application in both continuous and batch dyeing systems.
With good solubility, stable shade, and high color yield, Direct Black Dyes deliver consistent results under neutral and slightly alkaline papermaking conditions. They are also compatible with retention aids and fixing agents, ensuring efficient dye retention and reduced color loss in white water systems.
Key Features and Advantages
- Deep and uniform black shade with strong tinting strength
- Excellent solubility and easy to use in papermaking systems
- Stable color performance under various pH conditions
- Cost-effective solution with good retention efficiency
- Compatible with anionic and cationic papermaking additives
Applications
- Coloring of packaging paper, kraft paper, and decorative paper
- Suitable for tissue and printing papers requiring deep shades
- Applicable in both batch and continuous dyeing operations
Packing and Supply
Liquid grades ship in IBC totes carrying net weight, gross weight, lot number, production date and expiry date on the label. Exact pack sizes and drum options are confirmed on quotation.
Paper Grades It Is Used On
Related Guidance
Frequently Asked Questions
What is Direct Black Dyes used for?
Coloring of packaging paper, kraft paper, and decorative paper. Direct Black Dyes are high-performance anionic dyes widely used in paper coloration, offering deep black shades, excellent penetration, and uniform coloring. They are especially suitable for cellulose
Which paper grades is Direct Black Dyes suitable for?
Coloring of packaging paper, kraft paper, and decorative paper; Suitable for tissue and printing papers requiring deep shades; Applicable in both batch and continuous dyeing operations.
How is it packed and shipped?
Liquid grades ship in IBC totes carrying net weight, gross weight, lot number, production date and expiry date on the label. Exact pack sizes and drum options are confirmed on quotation.
Can I get a sample before a full order?
Send your paper grade and target property by WhatsApp or email and we will confirm sample availability and the technical data you need with it.
Same range
Other Paper Coloring Agent Grades
Basic Brown Dyes
Kraft-imitation and board grades need a warm brown that holds its tone batch after batch.
Basic Green Dyes
Vivid green on groundwood furnish demands high tinting strength and even levelness.
Basic Red Dyes
Bright red is the shade most likely to drift on a high-speed machine running recycled furnish.
Quote Direct Black Dyes for your machine
Send the paper grade, the furnish and your target property. You get a dosage starting point and packing options, not a brochure.