Direct Yellow 11, also known as Direct Yellow R with CAS NO. 1325-37-7, is a cost-effective azo direct dye. It is specially developed for paper dyeing and colouring of packaging supplies. Featuring bright shade and excellent performance, it serves as an ideal yellow dye for the paper and packaging industries.
Basic Product Information
- Product Name: Direct Yellow 11
- Alias: Direct Yellow R
- CAS NO.: 1325-37-7
- C.I. Number: 40000
- Appearance: Even brown powder with good water solubility. Its aqueous solution presents a reddish yellow tone with vivid and saturated colour.
- Molecular Formula: C₁₆H₁₀N₂Na₂O₇S₂
Outstanding Application Performance
Dedicated to Paper Dyeing
It boasts strong affinity for cellulosic fibres. When applied to paper dyeing, it delivers uniform colouring and satisfactory colour fastness. Suitable for books, wrapping paper, napkins and other paper products, the dyed paper features bright colour and good fade resistance, perfectly adapting to various papermaking processes.
Ideal Choice for Packaging Supplies
This product is well suited for colouring all kinds of packaging supplies including cartons, paper bags and paper packaging containers. It endows packaging products with attractive appearance and good weather resistance to enhance the grade of finished packages. Meanwhile, it complies with environmental standards and is safe to use.
Wide Range of Applications
Apart from the above uses, it can also be applied to dye cotton, viscose and other cellulosic fabrics, as well as leather, ink and other materials.
Product Advantages
- Excellent water solubility: Easily dissolved in water. The dyeing process is simple without complicated auxiliaries, and it is compatible with both normal and high-temperature dyeing processes.
- Stable shade: The colour tone remains uniform after dyeing, barely affected by water quality and temperature. Batch-to-batch colour difference is minimal to ensure stable production.
- Cost efficiency: High colour yield reduces dosage and overall production cost.
Specifications & Packaging
- Strength: 100% standard grade
- Fineness: Over 95% passing through 80-mesh sieve
- Packaging: 25kg per fibre drum. Custom packaging is available upon request for convenient transportation and storage.
Summary
Direct Yellow 11 (Direct Yellow R, CAS 1325-37-7) stands out for its superior water solubility, stable reddish yellow shade and high cost performance. It is a top-pick yellow dye for paper dyeing and packaging supplies. We supply qualified products and professional technical support. Welcome your inquiries and orders.
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Post time: May-26-2026