Basic Yellow 51

Basic Yellow 51 is a cationic dye presented as a yellow to yellow-green homogeneous powder. It exhibits excellent solubility, rapidly dissolving in water and alcohol-based solvents to form a clear, transparent yellow solution. The cationic groups within its molecular structure enable strong electrostatic adsorption onto negatively charged fiber surfaces. Its primary dyeing mechanism is ionic bonding, which results in a rapid exhaustion rate and outstanding color fastness. It demonstrates superior performance, particularly on acrylic fibers and their blended fabrics.

In terms of dyeing properties, this dye imparts a brilliant, bright greenish-yellow hue on acrylic fibers, delivering a pure and full shade with excellent build-up. It achieves high color strength even at low concentrations. With a lightfastness rating of 5-6 and a wash fastness of 4-5, it is considered a high-performance variety among cationic dyes. Furthermore, it possesses good dyeing affinity for acid-modified polyester, acid-modified nylon, and certain protein fibers (such as silk treated with anionic modifiers), broadening its range of applications.

Basic Yellow 51 is widely used not only for the dyeing and printing of acrylic yarns, fabrics, and garments but also serves as a crucial colorant for fluorescent safety apparel and outdoor sports textiles, thanks to its vibrant shade and excellent weather resistance. This product can also be utilized for paper coloration, leather coating, and the formulation of specialty inks. In biological staining, it functions as an auxiliary dye for fluorescent labeling of cell nuclei.

Our Basic Yellow 51 undergoes a rigorous purification process to control cationic purity and impurity levels, ensuring batch-to-batch consistency with a color difference (ΔE) of <1.0. The product complies with relevant environmental standards. Additionally, we provide customized optimization solutions for various fiber systems, including guidance on pH control, selection of retarding agents, and fixation processes. It is a reliable choice for high-quality cationic yellow dyes.

Introduce: Basic dyes, also known as cationic dyes, are a class of water-soluble colorants that carry a positive charge in solution. They show strong affinity for substrates containing anionic groups, particularly acrylic fibers, modified polyesters, and certain types of paper and leather. Basic dyes are characterized by their very high tinctorial strength, brilliant shades, and rapid dye uptake, allowing vivid and intense coloration even at low dosages.

Pre-sales service

After the customer confirms product quality, quantity, price and signs a contract, we will arrange for a pre-production sample to be made for customer confirmation.

Sales service

Once the customer approves the sample, we will arrange mass production and subsequent shipment. During this period, you can contact us with any questions.

After-sales service

We ensure that every product meets ISO 9001 quality standards and will be tested before shipment. If customers report quality issues, we will conduct further testing based on their reports and provide technical guidance.If a quality problem is confirmed, we will compensate or supplement the product according to the customer's wishes.

After shipment, we will track the logistics and promptly notify the customer. Upon arrival at the port, our professionals will handle customs clearance. Approximately 30 days after receiving the goods, we will inquire about the customer's usage and whether they require further technical guidance.